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-rw-r--r--drivers/acpi/glue.c20
-rw-r--r--drivers/acpi/processor_perflib.c4
-rw-r--r--drivers/ata/ahci.c38
-rw-r--r--drivers/ata/ata_generic.c1
-rw-r--r--drivers/ata/libata-scsi.c21
-rw-r--r--drivers/ata/pata_ali.c1
-rw-r--r--drivers/ata/pata_amd.c1
-rw-r--r--drivers/ata/pata_artop.c1
-rw-r--r--drivers/ata/pata_atiixp.c1
-rw-r--r--drivers/ata/pata_cmd64x.c1
-rw-r--r--drivers/ata/pata_cs5520.c1
-rw-r--r--drivers/ata/pata_cs5530.c1
-rw-r--r--drivers/ata/pata_cs5535.c1
-rw-r--r--drivers/ata/pata_cypress.c1
-rw-r--r--drivers/ata/pata_efar.c1
-rw-r--r--drivers/ata/pata_hpt366.c1
-rw-r--r--drivers/ata/pata_hpt37x.c1
-rw-r--r--drivers/ata/pata_hpt3x2n.c1
-rw-r--r--drivers/ata/pata_hpt3x3.c1
-rw-r--r--drivers/ata/pata_isapnp.c1
-rw-r--r--drivers/ata/pata_it821x.c1
-rw-r--r--drivers/ata/pata_jmicron.c1
-rw-r--r--drivers/ata/pata_legacy.c1
-rw-r--r--drivers/ata/pata_mpiix.c1
-rw-r--r--drivers/ata/pata_netcell.c1
-rw-r--r--drivers/ata/pata_ns87410.c1
-rw-r--r--drivers/ata/pata_oldpiix.c1
-rw-r--r--drivers/ata/pata_opti.c1
-rw-r--r--drivers/ata/pata_optidma.c1
-rw-r--r--drivers/ata/pata_pcmcia.c1
-rw-r--r--drivers/ata/pata_pdc2027x.c1
-rw-r--r--drivers/ata/pata_pdc202xx_old.c1
-rw-r--r--drivers/ata/pata_qdi.c1
-rw-r--r--drivers/ata/pata_radisys.c1
-rw-r--r--drivers/ata/pata_rz1000.c1
-rw-r--r--drivers/ata/pata_sc1200.c1
-rw-r--r--drivers/ata/pata_serverworks.c1
-rw-r--r--drivers/ata/pata_sil680.c1
-rw-r--r--drivers/ata/pata_sis.c1
-rw-r--r--drivers/ata/pata_sl82c105.c1
-rw-r--r--drivers/ata/pata_triflex.c1
-rw-r--r--drivers/ata/pata_via.c1
-rw-r--r--drivers/atm/ambassador.c2
-rw-r--r--drivers/atm/firestream.c2
-rw-r--r--drivers/atm/iphase.c2
-rw-r--r--drivers/base/bus.c34
-rw-r--r--drivers/base/class.c166
-rw-r--r--drivers/base/core.c241
-rw-r--r--drivers/base/dd.c92
-rw-r--r--drivers/base/firmware_class.c119
-rw-r--r--drivers/base/platform.c48
-rw-r--r--drivers/base/topology.c55
-rw-r--r--drivers/cdrom/cdrom.c6
-rw-r--r--drivers/char/Kconfig35
-rw-r--r--drivers/char/Makefile1
-rw-r--r--drivers/char/agp/generic.c2
-rw-r--r--drivers/char/agp/intel-agp.c33
-rw-r--r--drivers/char/ftape/Kconfig330
-rw-r--r--drivers/char/ftape/Makefile28
-rw-r--r--drivers/char/ftape/README.PCI81
-rw-r--r--drivers/char/ftape/RELEASE-NOTES966
-rw-r--r--drivers/char/ftape/compressor/Makefile31
-rw-r--r--drivers/char/ftape/compressor/lzrw3.c743
-rw-r--r--drivers/char/ftape/compressor/lzrw3.h253
-rw-r--r--drivers/char/ftape/compressor/zftape-compress.c1203
-rw-r--r--drivers/char/ftape/compressor/zftape-compress.h83
-rw-r--r--drivers/char/ftape/lowlevel/Makefile43
-rw-r--r--drivers/char/ftape/lowlevel/fc-10.c175
-rw-r--r--drivers/char/ftape/lowlevel/fc-10.h39
-rw-r--r--drivers/char/ftape/lowlevel/fdc-io.c1349
-rw-r--r--drivers/char/ftape/lowlevel/fdc-io.h252
-rw-r--r--drivers/char/ftape/lowlevel/fdc-isr.c1170
-rw-r--r--drivers/char/ftape/lowlevel/fdc-isr.h55
-rw-r--r--drivers/char/ftape/lowlevel/ftape-bsm.c491
-rw-r--r--drivers/char/ftape/lowlevel/ftape-bsm.h66
-rw-r--r--drivers/char/ftape/lowlevel/ftape-buffer.c130
-rw-r--r--drivers/char/ftape/lowlevel/ftape-buffer.h32
-rw-r--r--drivers/char/ftape/lowlevel/ftape-calibr.c275
-rw-r--r--drivers/char/ftape/lowlevel/ftape-calibr.h37
-rw-r--r--drivers/char/ftape/lowlevel/ftape-ctl.c896
-rw-r--r--drivers/char/ftape/lowlevel/ftape-ctl.h162
-rw-r--r--drivers/char/ftape/lowlevel/ftape-ecc.c853
-rw-r--r--drivers/char/ftape/lowlevel/ftape-ecc.h84
-rw-r--r--drivers/char/ftape/lowlevel/ftape-format.c344
-rw-r--r--drivers/char/ftape/lowlevel/ftape-format.h37
-rw-r--r--drivers/char/ftape/lowlevel/ftape-init.c160
-rw-r--r--drivers/char/ftape/lowlevel/ftape-init.h43
-rw-r--r--drivers/char/ftape/lowlevel/ftape-io.c992
-rw-r--r--drivers/char/ftape/lowlevel/ftape-io.h90
-rw-r--r--drivers/char/ftape/lowlevel/ftape-proc.c214
-rw-r--r--drivers/char/ftape/lowlevel/ftape-proc.h35
-rw-r--r--drivers/char/ftape/lowlevel/ftape-read.c621
-rw-r--r--drivers/char/ftape/lowlevel/ftape-read.h51
-rw-r--r--drivers/char/ftape/lowlevel/ftape-rw.c1092
-rw-r--r--drivers/char/ftape/lowlevel/ftape-rw.h111
-rw-r--r--drivers/char/ftape/lowlevel/ftape-setup.c104
-rw-r--r--drivers/char/ftape/lowlevel/ftape-tracing.c118
-rw-r--r--drivers/char/ftape/lowlevel/ftape-tracing.h179
-rw-r--r--drivers/char/ftape/lowlevel/ftape-write.c336
-rw-r--r--drivers/char/ftape/lowlevel/ftape-write.h53
-rw-r--r--drivers/char/ftape/lowlevel/ftape_syms.c87
-rw-r--r--drivers/char/ftape/zftape/Makefile36
-rw-r--r--drivers/char/ftape/zftape/zftape-buffers.c149
-rw-r--r--drivers/char/ftape/zftape/zftape-buffers.h55
-rw-r--r--drivers/char/ftape/zftape/zftape-ctl.c1417
-rw-r--r--drivers/char/ftape/zftape/zftape-ctl.h58
-rw-r--r--drivers/char/ftape/zftape/zftape-eof.c199
-rw-r--r--drivers/char/ftape/zftape/zftape-eof.h52
-rw-r--r--drivers/char/ftape/zftape/zftape-init.c377
-rw-r--r--drivers/char/ftape/zftape/zftape-init.h77
-rw-r--r--drivers/char/ftape/zftape/zftape-read.c377
-rw-r--r--drivers/char/ftape/zftape/zftape-read.h53
-rw-r--r--drivers/char/ftape/zftape/zftape-rw.c375
-rw-r--r--drivers/char/ftape/zftape/zftape-rw.h101
-rw-r--r--drivers/char/ftape/zftape/zftape-vtbl.c757
-rw-r--r--drivers/char/ftape/zftape/zftape-vtbl.h227
-rw-r--r--drivers/char/ftape/zftape/zftape-write.c483
-rw-r--r--drivers/char/ftape/zftape/zftape-write.h38
-rw-r--r--drivers/char/ftape/zftape/zftape_syms.c43
-rw-r--r--drivers/char/hw_random/core.c38
-rw-r--r--drivers/char/mem.c8
-rw-r--r--drivers/char/misc.c13
-rw-r--r--drivers/char/ppdev.c6
-rw-r--r--drivers/char/random.c48
-rw-r--r--drivers/char/raw.c12
-rw-r--r--drivers/char/rio/riocmd.c2
-rw-r--r--drivers/char/rio/rioinit.c2
-rw-r--r--drivers/char/rio/rioparam.c6
-rw-r--r--drivers/char/tlclk.c5
-rw-r--r--drivers/char/tpm/tpm.c2
-rw-r--r--drivers/char/tty_io.c19
-rw-r--r--drivers/char/vc_screen.c16
-rw-r--r--drivers/char/vt.c81
-rw-r--r--drivers/char/watchdog/Kconfig32
-rw-r--r--drivers/char/watchdog/Makefile4
-rw-r--r--drivers/char/watchdog/iTCO_vendor_support.c307
-rw-r--r--drivers/char/watchdog/iTCO_wdt.c29
-rw-r--r--drivers/char/watchdog/pc87413_wdt.c635
-rw-r--r--drivers/char/watchdog/pcwd_usb.c3
-rw-r--r--drivers/char/watchdog/rm9k_wdt.c420
-rw-r--r--drivers/i2c/busses/Kconfig1
-rw-r--r--drivers/i2c/busses/i2c-i801.c2
-rw-r--r--drivers/i2c/busses/i2c-ixp4xx.c2
-rw-r--r--drivers/i2c/i2c-dev.c26
-rw-r--r--drivers/ide/ide-floppy.c2
-rw-r--r--drivers/ide/pci/sgiioc4.c7
-rw-r--r--drivers/infiniband/core/addr.c19
-rw-r--r--drivers/infiniband/core/cm.c121
-rw-r--r--drivers/infiniband/core/cma.c49
-rw-r--r--drivers/infiniband/core/iwcm.c44
-rw-r--r--drivers/infiniband/core/mad.c2
-rw-r--r--drivers/infiniband/core/ucm.c20
-rw-r--r--drivers/infiniband/hw/amso1100/c2.h2
-rw-r--r--drivers/infiniband/hw/amso1100/c2_qp.c36
-rw-r--r--drivers/infiniband/hw/amso1100/c2_rnic.c4
-rw-r--r--drivers/infiniband/hw/ehca/ehca_main.c4
-rw-r--r--drivers/infiniband/hw/ehca/ehca_qp.c22
-rw-r--r--drivers/infiniband/hw/ehca/ipz_pt_fn.c13
-rw-r--r--drivers/infiniband/hw/ehca/ipz_pt_fn.h15
-rw-r--r--drivers/infiniband/hw/ipath/ipath_verbs.c2
-rw-r--r--drivers/infiniband/hw/mthca/mthca_av.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_cq.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_eq.c21
-rw-r--r--drivers/infiniband/hw/mthca/mthca_mad.c2
-rw-r--r--drivers/infiniband/hw/mthca/mthca_main.c29
-rw-r--r--drivers/infiniband/hw/mthca/mthca_mcg.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_mr.c5
-rw-r--r--drivers/infiniband/hw/mthca/mthca_pd.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_qp.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_srq.c4
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib.h2
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_main.c19
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_multicast.c2
-rw-r--r--drivers/infiniband/ulp/iser/iscsi_iser.h2
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.c11
-rw-r--r--drivers/input/joystick/iforce/iforce-usb.c6
-rw-r--r--drivers/input/serio/serio_raw.c2
-rw-r--r--drivers/isdn/gigaset/common.c2
-rw-r--r--drivers/isdn/gigaset/gigaset.h2
-rw-r--r--drivers/isdn/gigaset/interface.c10
-rw-r--r--drivers/isdn/gigaset/proc.c19
-rw-r--r--drivers/isdn/gigaset/usb-gigaset.c15
-rw-r--r--drivers/isdn/hardware/eicon/os_4bri.c2
-rw-r--r--drivers/isdn/hisax/hfc4s8s_l1.h2
-rw-r--r--drivers/isdn/hisax/isdnl2.c20
-rw-r--r--drivers/media/dvb/cinergyT2/cinergyT2.c6
-rw-r--r--drivers/media/dvb/dvb-core/dvb_frontend.c2
-rw-r--r--drivers/media/dvb/frontends/tda10086.c4
-rw-r--r--drivers/media/dvb/ttpci/budget-patch.c8
-rw-r--r--drivers/media/dvb/ttpci/budget.c9
-rw-r--r--drivers/media/dvb/ttusb-dec/ttusb_dec.c3
-rw-r--r--drivers/media/video/Kconfig2
-rw-r--r--drivers/media/video/et61x251/et61x251_core.c3
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c10
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-io.c2
-rw-r--r--drivers/media/video/pwc/pwc-if.c9
-rw-r--r--drivers/media/video/saa6588.c4
-rw-r--r--drivers/media/video/saa7115.c9
-rw-r--r--drivers/media/video/sn9c102/sn9c102_core.c5
-rw-r--r--drivers/media/video/usbvideo/quickcam_messenger.c3
-rw-r--r--drivers/media/video/zc0301/zc0301_core.c2
-rw-r--r--drivers/message/fusion/mptbase.c2
-rw-r--r--drivers/message/i2o/pci.c15
-rw-r--r--drivers/mmc/Kconfig2
-rw-r--r--drivers/mmc/at91_mci.c2
-rw-r--r--drivers/mmc/au1xmmc.c2
-rw-r--r--drivers/mmc/imxmmc.c2
-rw-r--r--drivers/mmc/mmc.c294
-rw-r--r--drivers/mmc/mmc_block.c15
-rw-r--r--drivers/mmc/mmc_queue.c67
-rw-r--r--drivers/mmc/mmc_queue.h3
-rw-r--r--drivers/mmc/mmc_sysfs.c20
-rw-r--r--drivers/mmc/mmci.c2
-rw-r--r--drivers/mmc/omap.c275
-rw-r--r--drivers/mmc/omap.h55
-rw-r--r--drivers/mmc/pxamci.c2
-rw-r--r--drivers/mmc/sdhci.c17
-rw-r--r--drivers/mmc/sdhci.h2
-rw-r--r--drivers/mmc/wbsd.c8
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c2
-rw-r--r--drivers/mtd/maps/Kconfig2
-rw-r--r--drivers/mtd/maps/cfi_flagadm.c2
-rw-r--r--drivers/net/8390.c1080
-rw-r--r--drivers/net/8390.h37
-rw-r--r--drivers/net/Kconfig47
-rw-r--r--drivers/net/Makefile13
-rw-r--r--drivers/net/Space.c1
-rw-r--r--drivers/net/amd8111e.c27
-rw-r--r--drivers/net/amd8111e.h4
-rw-r--r--drivers/net/arm/etherh.c39
-rw-r--r--drivers/net/au1000_eth.c3
-rw-r--r--drivers/net/bnx2.c689
-rw-r--r--drivers/net/bnx2.h2940
-rw-r--r--drivers/net/bnx2_fw.h1234
-rw-r--r--drivers/net/bnx2_fw2.h4086
-rw-r--r--drivers/net/bonding/bond_main.c63
-rw-r--r--drivers/net/cassini.c2
-rw-r--r--drivers/net/chelsio/Makefile8
-rw-r--r--drivers/net/chelsio/common.h105
-rw-r--r--drivers/net/chelsio/cphy.h24
-rw-r--r--drivers/net/chelsio/cpl5_cmd.h510
-rw-r--r--drivers/net/chelsio/cxgb2.c591
-rw-r--r--drivers/net/chelsio/elmer0.h7
-rw-r--r--drivers/net/chelsio/espi.c205
-rw-r--r--drivers/net/chelsio/espi.h1
-rw-r--r--drivers/net/chelsio/fpga_defs.h232
-rw-r--r--drivers/net/chelsio/gmac.h5
-rw-r--r--drivers/net/chelsio/ixf1010.c485
-rw-r--r--drivers/net/chelsio/mac.c368
-rw-r--r--drivers/net/chelsio/mv88e1xxx.c397
-rw-r--r--drivers/net/chelsio/mv88e1xxx.h127
-rw-r--r--drivers/net/chelsio/mv88x201x.c36
-rw-r--r--drivers/net/chelsio/my3126.c204
-rw-r--r--drivers/net/chelsio/pm3393.c125
-rw-r--r--drivers/net/chelsio/regs.h1718
-rw-r--r--drivers/net/chelsio/sge.c867
-rw-r--r--drivers/net/chelsio/sge.h33
-rw-r--r--drivers/net/chelsio/subr.c494
-rw-r--r--drivers/net/chelsio/suni1x10gexp_regs.h1430
-rw-r--r--drivers/net/chelsio/tp.c178
-rw-r--r--drivers/net/chelsio/tp.h73
-rw-r--r--drivers/net/chelsio/vsc7326.c725
-rw-r--r--drivers/net/chelsio/vsc7326_reg.h286
-rw-r--r--drivers/net/chelsio/vsc8244.c368
-rw-r--r--drivers/net/chelsio/vsc8244_reg.h172
-rw-r--r--drivers/net/cs89x0.c4
-rw-r--r--drivers/net/defxx.c39
-rw-r--r--drivers/net/defxx.h15
-rw-r--r--drivers/net/depca.c28
-rw-r--r--drivers/net/e100.c2
-rw-r--r--drivers/net/e1000/e1000.h17
-rw-r--r--drivers/net/e1000/e1000_ethtool.c36
-rw-r--r--drivers/net/e1000/e1000_hw.c139
-rw-r--r--drivers/net/e1000/e1000_hw.h90
-rw-r--r--drivers/net/e1000/e1000_main.c490
-rw-r--r--drivers/net/e1000/e1000_osdep.h9
-rw-r--r--drivers/net/e1000/e1000_param.c98
-rw-r--r--drivers/net/forcedeth.c290
-rw-r--r--drivers/net/fs_enet/fs_enet-main.c3
-rw-r--r--drivers/net/gianfar.c72
-rw-r--r--drivers/net/gianfar.h3
-rw-r--r--drivers/net/hamradio/6pack.c2
-rw-r--r--drivers/net/hydra.c23
-rw-r--r--drivers/net/ioc3-eth.c1
-rw-r--r--drivers/net/irda/irda-usb.c6
-rw-r--r--drivers/net/ixgb/ixgb_main.c2
-rw-r--r--drivers/net/lib8390.c1097
-rw-r--r--drivers/net/mac8390.c26
-rw-r--r--drivers/net/macb.c1210
-rw-r--r--drivers/net/macb.h387
-rw-r--r--drivers/net/meth.c1
-rw-r--r--drivers/net/myri10ge/myri10ge.c2
-rw-r--r--drivers/net/myri_sbus.c1
-rw-r--r--drivers/net/ne-h8300.c23
-rw-r--r--drivers/net/netconsole.c8
-rw-r--r--drivers/net/netxen/Makefile35
-rw-r--r--drivers/net/netxen/netxen_nic.h1028
-rw-r--r--drivers/net/netxen/netxen_nic_ethtool.c741
-rw-r--r--drivers/net/netxen/netxen_nic_hdr.h678
-rw-r--r--drivers/net/netxen/netxen_nic_hw.c1010
-rw-r--r--drivers/net/netxen/netxen_nic_hw.h482
-rw-r--r--drivers/net/netxen/netxen_nic_init.c1304
-rw-r--r--drivers/net/netxen/netxen_nic_ioctl.h77
-rw-r--r--drivers/net/netxen/netxen_nic_isr.c215
-rw-r--r--drivers/net/netxen/netxen_nic_main.c1161
-rw-r--r--drivers/net/netxen/netxen_nic_niu.c894
-rw-r--r--drivers/net/netxen/netxen_nic_phan_reg.h215
-rw-r--r--drivers/net/pcmcia/pcnet_cs.c1
-rw-r--r--drivers/net/phy/Kconfig10
-rw-r--r--drivers/net/phy/Makefile1
-rw-r--r--drivers/net/phy/broadcom.c175
-rw-r--r--drivers/net/phy/phy.c113
-rw-r--r--drivers/net/phy/phy_device.c30
-rw-r--r--drivers/net/ppp_generic.c4
-rw-r--r--drivers/net/pppoe.c2
-rw-r--r--drivers/net/r8169.c26
-rw-r--r--drivers/net/sk98lin/h/skdrv2nd.h2
-rw-r--r--drivers/net/sk98lin/skdim.c4
-rw-r--r--drivers/net/sk98lin/skethtool.c26
-rw-r--r--drivers/net/sk98lin/skge.c58
-rw-r--r--drivers/net/skge.c8
-rw-r--r--drivers/net/sky2.c41
-rw-r--r--drivers/net/sky2.h11
-rw-r--r--drivers/net/spider_net.c20
-rw-r--r--drivers/net/spider_net.h8
-rw-r--r--drivers/net/sundance.c58
-rw-r--r--drivers/net/sungem.c2
-rw-r--r--drivers/net/sunhme.c2
-rw-r--r--drivers/net/tokenring/olympic.c2
-rw-r--r--drivers/net/tsi108_eth.c1708
-rw-r--r--drivers/net/tsi108_eth.h365
-rw-r--r--drivers/net/tulip/de2104x.c4
-rw-r--r--drivers/net/tulip/dmfe.c9
-rw-r--r--drivers/net/typhoon.c1
-rw-r--r--drivers/net/ucc_geth.c6
-rw-r--r--drivers/net/wan/Kconfig76
-rw-r--r--drivers/net/wireless/atmel.c36
-rw-r--r--drivers/net/wireless/atmel_cs.c74
-rw-r--r--drivers/net/wireless/atmel_pci.c10
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx.h32
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_main.c207
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_power.c28
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_wx.c4
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_xmit.c18
-rw-r--r--drivers/net/wireless/hostap/hostap_pci.c8
-rw-r--r--drivers/net/wireless/ipw2100.c25
-rw-r--r--drivers/net/wireless/ipw2200.c12
-rw-r--r--drivers/net/wireless/orinoco_pci.h7
-rw-r--r--drivers/net/wireless/prism54/isl_38xx.c17
-rw-r--r--drivers/net/wireless/prism54/isl_38xx.h7
-rw-r--r--drivers/net/wireless/prism54/isl_ioctl.c61
-rw-r--r--drivers/net/wireless/prism54/isl_ioctl.h1
-rw-r--r--drivers/net/wireless/prism54/isl_oid.h48
-rw-r--r--drivers/net/wireless/prism54/islpci_dev.c13
-rw-r--r--drivers/net/wireless/prism54/islpci_dev.h11
-rw-r--r--drivers/net/wireless/prism54/islpci_eth.c28
-rw-r--r--drivers/net/wireless/prism54/islpci_eth.h1
-rw-r--r--drivers/net/wireless/prism54/islpci_hotplug.c43
-rw-r--r--drivers/net/wireless/prism54/islpci_mgt.c3
-rw-r--r--drivers/net/wireless/prism54/islpci_mgt.h5
-rw-r--r--drivers/net/wireless/prism54/oid_mgt.c6
-rw-r--r--drivers/net/wireless/prism54/prismcompat.h4
-rw-r--r--drivers/net/wireless/zd1201.c6
-rw-r--r--drivers/net/wireless/zd1211rw/zd_chip.c38
-rw-r--r--drivers/net/wireless/zd1211rw/zd_chip.h104
-rw-r--r--drivers/net/wireless/zd1211rw/zd_def.h1
-rw-r--r--drivers/net/wireless/zd1211rw/zd_ieee80211.c10
-rw-r--r--drivers/net/wireless/zd1211rw/zd_ieee80211.h3
-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.c404
-rw-r--r--drivers/net/wireless/zd1211rw/zd_mac.h38
-rw-r--r--drivers/net/wireless/zd1211rw/zd_netdev.c13
-rw-r--r--drivers/net/wireless/zd1211rw/zd_usb.c45
-rw-r--r--drivers/net/wireless/zd1211rw/zd_usb.h14
-rw-r--r--drivers/net/zorro8390.c24
-rw-r--r--drivers/parisc/ccio-dma.c2
-rw-r--r--drivers/parisc/iosapic.c6
-rw-r--r--drivers/pci/Kconfig6
-rw-r--r--drivers/pci/access.c75
-rw-r--r--drivers/pci/hotplug/acpiphp.h4
-rw-r--r--drivers/pci/hotplug/acpiphp_core.c39
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c8
-rw-r--r--drivers/pci/hotplug/ibmphp_hpc.c2
-rw-r--r--drivers/pci/hotplug/ibmphp_pci.c4
-rw-r--r--drivers/pci/hotplug/pciehp_core.c7
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c2
-rw-r--r--drivers/pci/hotplug/rpadlpar_core.c2
-rw-r--r--drivers/pci/hotplug/rpaphp_core.c2
-rw-r--r--drivers/pci/hotplug/sgi_hotplug.c35
-rw-r--r--drivers/pci/msi.h8
-rw-r--r--drivers/pci/pci-acpi.c10
-rw-r--r--drivers/pci/pci-driver.c11
-rw-r--r--drivers/pci/pci-sysfs.c33
-rw-r--r--drivers/pci/pci.c123
-rw-r--r--drivers/pci/pci.h1
-rw-r--r--drivers/pci/probe.c27
-rw-r--r--drivers/pci/quirks.c59
-rw-r--r--drivers/pci/rom.c9
-rw-r--r--drivers/pcmcia/ds.c2
-rw-r--r--drivers/rtc/interface.c16
-rw-r--r--drivers/rtc/rtc-at91.c3
-rw-r--r--drivers/rtc/rtc-dev.c25
-rw-r--r--drivers/rtc/rtc-ds1553.c3
-rw-r--r--drivers/rtc/rtc-rs5c372.c6
-rw-r--r--drivers/rtc/rtc-test.c2
-rw-r--r--drivers/s390/net/claw.h2
-rw-r--r--drivers/s390/net/lcs.c2
-rw-r--r--drivers/s390/net/lcs.h4
-rw-r--r--drivers/s390/net/qeth_eddp.c40
-rw-r--r--drivers/s390/net/qeth_eddp.h2
-rw-r--r--drivers/scsi/aic94xx/aic94xx_reg_def.h2
-rw-r--r--drivers/scsi/aic94xx/aic94xx_sds.c4
-rw-r--r--drivers/scsi/ncr53c8xx.c14
-rw-r--r--drivers/scsi/ncr53c8xx.h6
-rw-r--r--drivers/spi/Kconfig2
-rw-r--r--drivers/usb/atm/speedtch.c4
-rw-r--r--drivers/usb/atm/ueagle-atm.c10
-rw-r--r--drivers/usb/class/cdc-acm.c2
-rw-r--r--drivers/usb/core/Kconfig15
-rw-r--r--drivers/usb/core/devices.c9
-rw-r--r--drivers/usb/core/devio.c4
-rw-r--r--drivers/usb/core/driver.c304
-rw-r--r--drivers/usb/core/endpoint.c98
-rw-r--r--drivers/usb/core/hcd.c4
-rw-r--r--drivers/usb/core/hub.c234
-rw-r--r--drivers/usb/core/hub.h41
-rw-r--r--drivers/usb/core/message.c8
-rw-r--r--drivers/usb/core/usb.c160
-rw-r--r--drivers/usb/core/usb.h9
-rw-r--r--drivers/usb/gadget/ether.c4
-rw-r--r--drivers/usb/gadget/lh7a40x_udc.c1
-rw-r--r--drivers/usb/gadget/net2280.c8
-rw-r--r--drivers/usb/gadget/net2280.h3
-rw-r--r--drivers/usb/gadget/pxa2xx_udc.c2
-rw-r--r--drivers/usb/host/Kconfig2
-rw-r--r--drivers/usb/host/ehci-hcd.c16
-rw-r--r--drivers/usb/host/ehci-hub.c104
-rw-r--r--drivers/usb/host/ehci-pci.c40
-rw-r--r--drivers/usb/host/ehci.h1
-rw-r--r--drivers/usb/host/ohci-hcd.c10
-rw-r--r--drivers/usb/host/ohci-hub.c172
-rw-r--r--drivers/usb/host/u132-hcd.c14
-rw-r--r--drivers/usb/image/microtek.c8
-rw-r--r--drivers/usb/input/Kconfig6
-rw-r--r--drivers/usb/input/ati_remote.c17
-rw-r--r--drivers/usb/input/ati_remote2.c3
-rw-r--r--drivers/usb/input/hid-core.c91
-rw-r--r--drivers/usb/input/hid.h1
-rw-r--r--drivers/usb/input/usbkbd.c10
-rw-r--r--drivers/usb/input/usbmouse.c4
-rw-r--r--drivers/usb/input/usbtouchscreen.c96
-rw-r--r--drivers/usb/input/wacom.h1
-rw-r--r--drivers/usb/input/wacom_sys.c2
-rw-r--r--drivers/usb/input/yealink.c6
-rw-r--r--drivers/usb/misc/Makefile1
-rw-r--r--drivers/usb/misc/appledisplay.c5
-rw-r--r--drivers/usb/misc/auerswald.c7
-rw-r--r--drivers/usb/misc/emi26.c3
-rw-r--r--drivers/usb/misc/emi62.c3
-rw-r--r--drivers/usb/misc/ftdi-elan.c20
-rw-r--r--drivers/usb/misc/idmouse.c22
-rw-r--r--drivers/usb/misc/legousbtower.c31
-rw-r--r--drivers/usb/misc/phidgetkit.c5
-rw-r--r--drivers/usb/misc/phidgetmotorcontrol.c5
-rw-r--r--drivers/usb/misc/usb_u132.h6
-rw-r--r--drivers/usb/misc/usbtest.c4
-rw-r--r--drivers/usb/net/asix.c6
-rw-r--r--drivers/usb/net/catc.c12
-rw-r--r--drivers/usb/net/cdc_ether.c3
-rw-r--r--drivers/usb/net/net1080.c4
-rw-r--r--drivers/usb/net/pegasus.c1
-rw-r--r--drivers/usb/net/usbnet.c4
-rw-r--r--drivers/usb/serial/Kconfig11
-rw-r--r--drivers/usb/serial/Makefile1
-rw-r--r--drivers/usb/serial/aircable.c9
-rw-r--r--drivers/usb/serial/airprime.c1
-rw-r--r--drivers/usb/serial/ark3116.c3
-rw-r--r--drivers/usb/serial/console.c6
-rw-r--r--drivers/usb/serial/cypress_m8.c9
-rw-r--r--drivers/usb/serial/digi_acceleport.c2
-rw-r--r--drivers/usb/serial/ezusb.c3
-rw-r--r--drivers/usb/serial/ftdi_sio.c3
-rw-r--r--drivers/usb/serial/garmin_gps.c3
-rw-r--r--drivers/usb/serial/io_edgeport.c4
-rw-r--r--drivers/usb/serial/ipw.c3
-rw-r--r--drivers/usb/serial/keyspan.c18
-rw-r--r--drivers/usb/serial/kobil_sct.c9
-rw-r--r--drivers/usb/serial/mct_u232.c6
-rw-r--r--drivers/usb/serial/mos7840.c3
-rw-r--r--drivers/usb/serial/navman.c3
-rw-r--r--drivers/usb/serial/ti_usb_3410_5052.c5
-rw-r--r--drivers/usb/serial/ti_usb_3410_5052.h1
-rw-r--r--drivers/usb/serial/usb-serial.c12
-rw-r--r--drivers/usb/serial/usb_debug.c65
-rw-r--r--drivers/usb/serial/visor.c3
-rw-r--r--drivers/usb/storage/onetouch.c5
-rw-r--r--drivers/usb/storage/unusual_devs.h10
-rw-r--r--drivers/usb/storage/usb.c8
-rw-r--r--drivers/video/fbmem.c16
-rw-r--r--drivers/video/fbsysfs.c163
500 files changed, 36894 insertions, 25427 deletions
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 10f160dc75b..a2f46d587d5 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -267,9 +267,9 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle)
{
acpi_status status;
- if (dev->firmware_data) {
+ if (dev->archdata.acpi_handle) {
printk(KERN_WARNING PREFIX
- "Drivers changed 'firmware_data' for %s\n", dev->bus_id);
+ "Drivers changed 'acpi_handle' for %s\n", dev->bus_id);
return -EINVAL;
}
get_device(dev);
@@ -278,25 +278,26 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle)
put_device(dev);
return -EINVAL;
}
- dev->firmware_data = handle;
+ dev->archdata.acpi_handle = handle;
return 0;
}
static int acpi_unbind_one(struct device *dev)
{
- if (!dev->firmware_data)
+ if (!dev->archdata.acpi_handle)
return 0;
- if (dev == acpi_get_physical_device(dev->firmware_data)) {
+ if (dev == acpi_get_physical_device(dev->archdata.acpi_handle)) {
/* acpi_get_physical_device increase refcnt by one */
put_device(dev);
- acpi_detach_data(dev->firmware_data, acpi_glue_data_handler);
- dev->firmware_data = NULL;
+ acpi_detach_data(dev->archdata.acpi_handle,
+ acpi_glue_data_handler);
+ dev->archdata.acpi_handle = NULL;
/* acpi_bind_one increase refcnt by one */
put_device(dev);
} else {
printk(KERN_ERR PREFIX
- "Oops, 'firmware_data' corrupt for %s\n", dev->bus_id);
+ "Oops, 'acpi_handle' corrupt for %s\n", dev->bus_id);
}
return 0;
}
@@ -328,7 +329,8 @@ static int acpi_platform_notify(struct device *dev)
if (!ret) {
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- acpi_get_name(dev->firmware_data, ACPI_FULL_PATHNAME, &buffer);
+ acpi_get_name(dev->archdata.acpi_handle,
+ ACPI_FULL_PATHNAME, &buffer);
DBG("Device %s -> %s\n", dev->bus_id, (char *)buffer.pointer);
kfree(buffer.pointer);
} else
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 7ba5e49ab30..6fd174a3714 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -83,10 +83,8 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb,
goto out;
ppc = (unsigned int)pr->performance_platform_limit;
- if (!ppc)
- goto out;
- if (ppc > pr->performance->state_count)
+ if (ppc >= pr->performance->state_count)
goto out;
cpufreq_verify_within_limits(policy, 0,
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 234197e57e9..bddb14e91d3 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -78,6 +78,7 @@ enum {
board_ahci = 0,
board_ahci_vt8251 = 1,
+ board_ahci_ign_iferr = 2,
/* global controller registers */
HOST_CAP = 0x00, /* host capabilities */
@@ -168,6 +169,7 @@ enum {
/* ap->flags bits */
AHCI_FLAG_RESET_NEEDS_CLO = (1 << 24),
AHCI_FLAG_NO_NCQ = (1 << 25),
+ AHCI_FLAG_IGN_IRQ_IF_ERR = (1 << 26), /* ignore IRQ_IF_ERR */
};
struct ahci_cmd_hdr {
@@ -295,6 +297,17 @@ static const struct ata_port_info ahci_port_info[] = {
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &ahci_ops,
},
+ /* board_ahci_ign_iferr */
+ {
+ .sht = &ahci_sht,
+ .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
+ ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
+ ATA_FLAG_SKIP_D2H_BSY |
+ AHCI_FLAG_IGN_IRQ_IF_ERR,
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = 0x7f, /* udma0-6 ; FIXME */
+ .port_ops = &ahci_ops,
+ },
};
static const struct pci_device_id ahci_pci_tbl[] = {
@@ -314,13 +327,24 @@ static const struct pci_device_id ahci_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, 0x2824), board_ahci }, /* ICH8 */
{ PCI_VDEVICE(INTEL, 0x2829), board_ahci }, /* ICH8M */
{ PCI_VDEVICE(INTEL, 0x282a), board_ahci }, /* ICH8M */
+ { PCI_VDEVICE(INTEL, 0x2922), board_ahci }, /* ICH9 */
+ { PCI_VDEVICE(INTEL, 0x2923), board_ahci }, /* ICH9 */
+ { PCI_VDEVICE(INTEL, 0x2924), board_ahci }, /* ICH9 */
+ { PCI_VDEVICE(INTEL, 0x2925), board_ahci }, /* ICH9 */
+ { PCI_VDEVICE(INTEL, 0x2927), board_ahci }, /* ICH9 */
+ { PCI_VDEVICE(INTEL, 0x2929), board_ahci }, /* ICH9M */
+ { PCI_VDEVICE(INTEL, 0x292a), board_ahci }, /* ICH9M */
+ { PCI_VDEVICE(INTEL, 0x292b), board_ahci }, /* ICH9M */
+ { PCI_VDEVICE(INTEL, 0x292f), board_ahci }, /* ICH9M */
+ { PCI_VDEVICE(INTEL, 0x294d), board_ahci }, /* ICH9 */
+ { PCI_VDEVICE(INTEL, 0x294e), board_ahci }, /* ICH9M */
/* JMicron */
- { PCI_VDEVICE(JMICRON, 0x2360), board_ahci }, /* JMicron JMB360 */
- { PCI_VDEVICE(JMICRON, 0x2361), board_ahci }, /* JMicron JMB361 */
- { PCI_VDEVICE(JMICRON, 0x2363), board_ahci }, /* JMicron JMB363 */
- { PCI_VDEVICE(JMICRON, 0x2365), board_ahci }, /* JMicron JMB365 */
- { PCI_VDEVICE(JMICRON, 0x2366), board_ahci }, /* JMicron JMB366 */
+ { PCI_VDEVICE(JMICRON, 0x2360), board_ahci_ign_iferr }, /* JMB360 */
+ { PCI_VDEVICE(JMICRON, 0x2361), board_ahci_ign_iferr }, /* JMB361 */
+ { PCI_VDEVICE(JMICRON, 0x2363), board_ahci_ign_iferr }, /* JMB363 */
+ { PCI_VDEVICE(JMICRON, 0x2365), board_ahci_ign_iferr }, /* JMB365 */
+ { PCI_VDEVICE(JMICRON, 0x2366), board_ahci_ign_iferr }, /* JMB366 */
/* ATI */
{ PCI_VDEVICE(ATI, 0x4380), board_ahci }, /* ATI SB600 non-raid */
@@ -969,6 +993,10 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
/* analyze @irq_stat */
ata_ehi_push_desc(ehi, "irq_stat 0x%08x", irq_stat);
+ /* some controllers set IRQ_IF_ERR on device errors, ignore it */
+ if (ap->flags & AHCI_FLAG_IGN_IRQ_IF_ERR)
+ irq_stat &= ~PORT_IRQ_IF_ERR;
+
if (irq_stat & PORT_IRQ_TF_ERR)
err_mask |= AC_ERR_DEV;
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index 377425e7139..4a80ff9312b 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -116,6 +116,7 @@ static struct scsi_host_template generic_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index c872b324dbd..4c32d93d44b 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -1451,6 +1451,7 @@ nothing_to_do:
static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
{
+ struct ata_port *ap = qc->ap;
struct scsi_cmnd *cmd = qc->scsicmd;
u8 *cdb = cmd->cmnd;
int need_sense = (qc->err_mask != 0);
@@ -1459,11 +1460,12 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
* schedule EH_REVALIDATE operation to update the IDENTIFY DEVICE
* cache
*/
- if (!need_sense && (qc->tf.command == ATA_CMD_SET_FEATURES) &&
+ if (ap->ops->error_handler &&
+ !need_sense && (qc->tf.command == ATA_CMD_SET_FEATURES) &&
((qc->tf.feature == SETFEATURES_WC_ON) ||
(qc->tf.feature == SETFEATURES_WC_OFF))) {
- qc->ap->eh_info.action |= ATA_EH_REVALIDATE;
- ata_port_schedule_eh(qc->ap);
+ ap->eh_info.action |= ATA_EH_REVALIDATE;
+ ata_port_schedule_eh(ap);
}
/* For ATA pass thru (SAT) commands, generate a sense block if
@@ -1490,8 +1492,8 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
}
}
- if (need_sense && !qc->ap->ops->error_handler)
- ata_dump_status(qc->ap->id, &qc->result_tf);
+ if (need_sense && !ap->ops->error_handler)
+ ata_dump_status(ap->id, &qc->result_tf);
qc->scsidone(cmd);
@@ -3347,20 +3349,23 @@ EXPORT_SYMBOL_GPL(ata_sas_slave_configure);
* @ap: ATA port to which the command is being sent
*
* RETURNS:
- * Zero.
+ * Return value from __ata_scsi_queuecmd() if @cmd can be queued,
+ * 0 otherwise.
*/
int ata_sas_queuecmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *),
struct ata_port *ap)
{
+ int rc = 0;
+
ata_scsi_dump_cdb(ap, cmd);
if (likely(ata_scsi_dev_enabled(ap->device)))
- __ata_scsi_queuecmd(cmd, done, ap->device);
+ rc = __ata_scsi_queuecmd(cmd, done, ap->device);
else {
cmd->result = (DID_BAD_TARGET << 16);
done(cmd);
}
- return 0;
+ return rc;
}
EXPORT_SYMBOL_GPL(ata_sas_queuecmd);
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 1d695df5860..64eed99f681 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -346,6 +346,7 @@ static struct scsi_host_template ali_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 5c47a9e0e0c..8be46a63af7 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -333,6 +333,7 @@ static struct scsi_host_template amd_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index 96a098020a8..2cd30761ca1 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -314,6 +314,7 @@ static struct scsi_host_template artop_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 1ce28d2125f..4e1d3b59adb 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -216,6 +216,7 @@ static struct scsi_host_template atiixp_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index b9bbd1d454b..29a60df465d 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -275,6 +275,7 @@ static struct scsi_host_template cmd64x_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 2cd3c0ff76d..33d2b88f9c7 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -166,6 +166,7 @@ static struct scsi_host_template cs5520_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index a07cc81ef79..981f4922346 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -180,6 +180,7 @@ static struct scsi_host_template cs5530_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c
index f8def3f9c61..8dafa4a49fd 100644
--- a/drivers/ata/pata_cs5535.c
+++ b/drivers/ata/pata_cs5535.c
@@ -184,6 +184,7 @@ static struct scsi_host_template cs5535_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_cypress.c b/drivers/ata/pata_cypress.c
index 247b43608b1..5a0b811907e 100644
--- a/drivers/ata/pata_cypress.c
+++ b/drivers/ata/pata_cypress.c
@@ -135,6 +135,7 @@ static struct scsi_host_template cy82c693_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_efar.c b/drivers/ata/pata_efar.c
index ef18c60fe14..755f79279de 100644
--- a/drivers/ata/pata_efar.c
+++ b/drivers/ata/pata_efar.c
@@ -233,6 +233,7 @@ static struct scsi_host_template efar_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index 6d3e4c0f15f..c0e150a9586 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -329,6 +329,7 @@ static struct scsi_host_template hpt36x_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index fce3fcdc7e7..1eeb16f0fb0 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -775,6 +775,7 @@ static struct scsi_host_template hpt37x_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index 58cfb2bc809..47d7664e9ee 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -341,6 +341,7 @@ static struct scsi_host_template hpt3x2n_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_hpt3x3.c b/drivers/ata/pata_hpt3x3.c
index 3334d72e251..d216cc564b5 100644
--- a/drivers/ata/pata_hpt3x3.c
+++ b/drivers/ata/pata_hpt3x3.c
@@ -118,6 +118,7 @@ static struct scsi_host_template hpt3x3_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c
index 640b8b0954f..40ca2b82b7f 100644
--- a/drivers/ata/pata_isapnp.c
+++ b/drivers/ata/pata_isapnp.c
@@ -34,6 +34,7 @@ static struct scsi_host_template isapnp_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 18ff3e59a89..7f68f14be6f 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -675,6 +675,7 @@ static struct scsi_host_template it821x_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 52a2bdf3c38..0210b10d49c 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -136,6 +136,7 @@ static struct scsi_host_template jmicron_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
/* Use standard CHS mapping rules */
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_legacy.c b/drivers/ata/pata_legacy.c
index 10231ef731d..b39078b2a47 100644
--- a/drivers/ata/pata_legacy.c
+++ b/drivers/ata/pata_legacy.c
@@ -135,6 +135,7 @@ static struct scsi_host_template legacy_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_mpiix.c b/drivers/ata/pata_mpiix.c
index 9dfe3e9abea..e00d406bfdf 100644
--- a/drivers/ata/pata_mpiix.c
+++ b/drivers/ata/pata_mpiix.c
@@ -166,6 +166,7 @@ static struct scsi_host_template mpiix_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c
index f5672de99c2..1963a4d3587 100644
--- a/drivers/ata/pata_netcell.c
+++ b/drivers/ata/pata_netcell.c
@@ -62,6 +62,7 @@ static struct scsi_host_template netcell_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
/* Use standard CHS mapping rules */
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_ns87410.c b/drivers/ata/pata_ns87410.c
index 2a3dbeed89b..7ec800f00ec 100644
--- a/drivers/ata/pata_ns87410.c
+++ b/drivers/ata/pata_ns87410.c
@@ -156,6 +156,7 @@ static struct scsi_host_template ns87410_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_oldpiix.c b/drivers/ata/pata_oldpiix.c
index fc947dfecd7..8837256632e 100644
--- a/drivers/ata/pata_oldpiix.c
+++ b/drivers/ata/pata_oldpiix.c
@@ -231,6 +231,7 @@ static struct scsi_host_template oldpiix_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_opti.c b/drivers/ata/pata_opti.c
index a7320ba1557..c6319cf50de 100644
--- a/drivers/ata/pata_opti.c
+++ b/drivers/ata/pata_opti.c
@@ -202,6 +202,7 @@ static struct scsi_host_template opti_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c
index c6906b4215d..2f4770cce04 100644
--- a/drivers/ata/pata_optidma.c
+++ b/drivers/ata/pata_optidma.c
@@ -359,6 +359,7 @@ static struct scsi_host_template optidma_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index e93ea2702c7..999922de476 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -69,6 +69,7 @@ static struct scsi_host_template pcmcia_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index d894d9918b1..beb6d10a234 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -141,6 +141,7 @@ static struct scsi_host_template pdc2027x_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index 5ba9eb20a6c..6baf51b2fda 100644
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -269,6 +269,7 @@ static struct scsi_host_template pdc_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
index 2c3cc0ccc60..314938dea1f 100644
--- a/drivers/ata/pata_qdi.c
+++ b/drivers/ata/pata_qdi.c
@@ -164,6 +164,7 @@ static struct scsi_host_template qdi_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_radisys.c b/drivers/ata/pata_radisys.c
index 1af83d7694d..048c2bb21ef 100644
--- a/drivers/ata/pata_radisys.c
+++ b/drivers/ata/pata_radisys.c
@@ -227,6 +227,7 @@ static struct scsi_host_template radisys_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_rz1000.c b/drivers/ata/pata_rz1000.c
index 4533b6357d9..e4e5ea423fe 100644
--- a/drivers/ata/pata_rz1000.c
+++ b/drivers/ata/pata_rz1000.c
@@ -90,6 +90,7 @@ static struct scsi_host_template rz1000_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_sc1200.c b/drivers/ata/pata_sc1200.c
index 067d9d223e3..0c75dae7476 100644
--- a/drivers/ata/pata_sc1200.c
+++ b/drivers/ata/pata_sc1200.c
@@ -193,6 +193,7 @@ static struct scsi_host_template sc1200_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index 5bbf76ec14a..be7f60efcb6 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -325,6 +325,7 @@ static struct scsi_host_template serverworks_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index 4a2b72b4be8..11942fd03b5 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -225,6 +225,7 @@ static struct scsi_host_template sil680_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index b9ffafb4198..91e85f90941 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -545,6 +545,7 @@ static struct scsi_host_template sis_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index 08a6dc88676..dc1cfc6d805 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -237,6 +237,7 @@ static struct scsi_host_template sl82c105_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_triflex.c b/drivers/ata/pata_triflex.c
index 9640f80e8b0..bfda1f7e760 100644
--- a/drivers/ata/pata_triflex.c
+++ b/drivers/ata/pata_triflex.c
@@ -192,6 +192,7 @@ static struct scsi_host_template triflex_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index 1e7be9eee9c..c5f1616d224 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -295,6 +295,7 @@ static struct scsi_host_template via_sht = {
.proc_name = DRV_NAME,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = ata_scsi_slave_config,
+ .slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
};
diff --git a/drivers/atm/ambassador.c b/drivers/atm/ambassador.c
index 9fffa7af6db..afa7d750a59 100644
--- a/drivers/atm/ambassador.c
+++ b/drivers/atm/ambassador.c
@@ -972,7 +972,7 @@ static int make_rate (unsigned int rate, rounding r,
}
case round_up: {
// check all bits that we are discarding
- if (man & (-1>>9)) {
+ if (man & (~0U>>9)) {
man = (man>>(32-9)) + 1;
if (man == (1<<9)) {
// no need to check for round up outside of range
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
index 697ad82f663..9c67df5ccfa 100644
--- a/drivers/atm/firestream.c
+++ b/drivers/atm/firestream.c
@@ -512,7 +512,7 @@ static unsigned int make_rate (unsigned int rate, int r,
}
case ROUND_UP: {
/* check all bits that we are discarding */
- if (man & (-1>>9)) {
+ if (man & (~0U>>9)) {
man = (man>>(32-9)) + 1;
if (man == (1<<9)) {
/* no need to check for round up outside of range */
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index 9ed1c60048f..bb7ef570514 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -305,7 +305,7 @@ static void clear_lockup (struct atm_vcc *vcc, IADEV *dev) {
** | R | NZ | 5-bit exponent | 9-bit mantissa |
** +----+----+------------------+-------------------------------+
**
-** R = reserverd (written as 0)
+** R = reserved (written as 0)
** NZ = 0 if 0 cells/sec; 1 otherwise
**
** if NZ = 1, rate = 1.mmmmmmmmm x 2^(eeeee) cells/sec
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 7d8a7ce73fb..472810f8e6e 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -355,6 +355,21 @@ static void device_remove_attrs(struct bus_type * bus, struct device * dev)
}
}
+#ifdef CONFIG_SYSFS_DEPRECATED
+static int make_deprecated_bus_links(struct device *dev)
+{
+ return sysfs_create_link(&dev->kobj,
+ &dev->bus->subsys.kset.kobj, "bus");
+}
+
+static void remove_deprecated_bus_links(struct device *dev)
+{
+ sysfs_remove_link(&dev->kobj, "bus");
+}
+#else
+static inline int make_deprecated_bus_links(struct device *dev) { return 0; }
+static inline void remove_deprecated_bus_links(struct device *dev) { }
+#endif
/**
* bus_add_device - add device to bus
@@ -381,8 +396,7 @@ int bus_add_device(struct device * dev)
&dev->bus->subsys.kset.kobj, "subsystem");
if (error)
goto out_subsys;
- error = sysfs_create_link(&dev->kobj,
- &dev->bus->subsys.kset.kobj, "bus");
+ error = make_deprecated_bus_links(dev);
if (error)
goto out_deprecated;
}
@@ -436,7 +450,7 @@ void bus_remove_device(struct device * dev)
{
if (dev->bus) {
sysfs_remove_link(&dev->kobj, "subsystem");
- sysfs_remove_link(&dev->kobj, "bus");
+ remove_deprecated_bus_links(dev);
sysfs_remove_link(&dev->bus->devices.kobj, dev->bus_id);
device_remove_attrs(dev->bus, dev);
if (dev->is_registered) {
@@ -724,6 +738,8 @@ int bus_register(struct bus_type * bus)
{
int retval;
+ BLOCKING_INIT_NOTIFIER_HEAD(&bus->bus_notifier);
+
retval = kobject_set_name(&bus->subsys.kset.kobj, "%s", bus->name);
if (retval)
goto out;
@@ -782,6 +798,18 @@ void bus_unregister(struct bus_type * bus)
subsystem_unregister(&bus->subsys);
}
+int bus_register_notifier(struct bus_type *bus, struct notifier_block *nb)
+{
+ return blocking_notifier_chain_register(&bus->bus_notifier, nb);
+}
+EXPORT_SYMBOL_GPL(bus_register_notifier);
+
+int bus_unregister_notifier(struct bus_type *bus, struct notifier_block *nb)
+{
+ return blocking_notifier_chain_unregister(&bus->bus_notifier, nb);
+}
+EXPORT_SYMBOL_GPL(bus_unregister_notifier);
+
int __init buses_init(void)
{
return subsystem_register(&bus_subsys);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 0ff267a248d..f098881f45b 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -352,6 +352,92 @@ static const char *class_uevent_name(struct kset *kset, struct kobject *kobj)
return class_dev->class->name;
}
+#ifdef CONFIG_SYSFS_DEPRECATED
+char *make_class_name(const char *name, struct kobject *kobj)
+{
+ char *class_name;
+ int size;
+
+ size = strlen(name) + strlen(kobject_name(kobj)) + 2;
+
+ class_name = kmalloc(size, GFP_KERNEL);
+ if (!class_name)
+ return ERR_PTR(-ENOMEM);
+
+ strcpy(class_name, name);
+ strcat(class_name, ":");
+ strcat(class_name, kobject_name(kobj));
+ return class_name;
+}
+
+static int deprecated_class_uevent(char **envp, int num_envp, int *cur_index,
+ char *buffer, int buffer_size,
+ int *cur_len,
+ struct class_device *class_dev)
+{
+ struct device *dev = class_dev->dev;
+ char *path;
+
+ if (!dev)
+ return 0;
+
+ /* add device, backing this class device (deprecated) */
+ path = kobject_get_path(&dev->kobj, GFP_KERNEL);
+
+ add_uevent_var(envp, num_envp, cur_index, buffer, buffer_size,
+ cur_len, "PHYSDEVPATH=%s", path);
+ kfree(path);
+
+ if (dev->bus)
+ add_uevent_var(envp, num_envp, cur_index,
+ buffer, buffer_size, cur_len,
+ "PHYSDEVBUS=%s", dev->bus->name);
+
+ if (dev->driver)
+ add_uevent_var(envp, num_envp, cur_index,
+ buffer, buffer_size, cur_len,
+ "PHYSDEVDRIVER=%s", dev->driver->name);
+ return 0;
+}
+
+static int make_deprecated_class_device_links(struct class_device *class_dev)
+{
+ char *class_name;
+ int error;
+
+ if (!class_dev->dev)
+ return 0;
+
+ class_name = make_class_name(class_dev->class->name, &class_dev->kobj);
+ error = sysfs_create_link(&class_dev->dev->kobj, &class_dev->kobj,
+ class_name);
+ kfree(class_name);
+ return error;
+}
+
+static void remove_deprecated_class_device_links(struct class_device *class_dev)
+{
+ char *class_name;
+
+ if (!class_dev->dev)
+ return;
+
+ class_name = make_class_name(class_dev->class->name, &class_dev->kobj);
+ sysfs_remove_link(&class_dev->dev->kobj, class_name);
+ kfree(class_name);
+}
+#else
+static inline int deprecated_class_uevent(char **envp, int num_envp,
+ int *cur_index, char *buffer,
+ int buffer_size, int *cur_len,
+ struct class_device *class_dev)
+{ return 0; }
+static inline int make_deprecated_class_device_links(struct class_device *cd)
+{ return 0; }
+static void remove_deprecated_class_device_links(struct class_device *cd)
+{ }
+#endif
+
static int class_uevent(struct kset *kset, struct kobject *kobj, char **envp,
int num_envp, char *buffer, int buffer_size)
{
@@ -362,25 +448,8 @@ static int class_uevent(struct kset *kset, struct kobject *kobj, char **envp,
pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id);
- if (class_dev->dev) {
- /* add device, backing this class device (deprecated) */
- struct device *dev = class_dev->dev;
- char *path = kobject_get_path(&dev->kobj, GFP_KERNEL);
-
- add_uevent_var(envp, num_envp, &i, buffer, buffer_size,
- &length, "PHYSDEVPATH=%s", path);
- kfree(path);
-
- if (dev->bus)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVBUS=%s", dev->bus->name);
-
- if (dev->driver)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVDRIVER=%s", dev->driver->name);
- }
+ deprecated_class_uevent(envp, num_envp, &i, buffer, buffer_size,
+ &length, class_dev);
if (MAJOR(class_dev->devt)) {
add_uevent_var(envp, num_envp, &i,
@@ -506,29 +575,11 @@ void class_device_initialize(struct class_device *class_dev)
INIT_LIST_HEAD(&class_dev->node);
}
-char *make_class_name(const char *name, struct kobject *kobj)
-{
- char *class_name;
- int size;
-
- size = strlen(name) + strlen(kobject_name(kobj)) + 2;
-
- class_name = kmalloc(size, GFP_KERNEL);
- if (!class_name)
- return ERR_PTR(-ENOMEM);
-
- strcpy(class_name, name);
- strcat(class_name, ":");
- strcat(class_name, kobject_name(kobj));
- return class_name;
-}
-
int class_device_add(struct class_device *class_dev)
{
struct class *parent_class = NULL;
struct class_device *parent_class_dev = NULL;
struct class_interface *class_intf;
- char *class_name = NULL;
int error = -EINVAL;
class_dev = class_device_get(class_dev);
@@ -599,20 +650,18 @@ int class_device_add(struct class_device *class_dev)
goto out5;
if (class_dev->dev) {
- class_name = make_class_name(class_dev->class->name,
- &class_dev->kobj);
error = sysfs_create_link(&class_dev->kobj,
&class_dev->dev->kobj, "device");
if (error)
goto out6;
- error = sysfs_create_link(&class_dev->dev->kobj, &class_dev->kobj,
- class_name);
- if (error)
- goto out7;
}
error = class_device_add_groups(class_dev);
if (error)
+ goto out7;
+
+ error = make_deprecated_class_device_links(class_dev);
+ if (error)
goto out8;
kobject_uevent(&class_dev->kobj, KOBJ_ADD);
@@ -629,8 +678,7 @@ int class_device_add(struct class_device *class_dev)
goto out1;
out8:
- if (class_dev->dev)
- sysfs_remove_link(&class_dev->kobj, class_name);
+ class_device_remove_groups(class_dev);
out7:
if (class_dev->dev)
sysfs_remove_link(&class_dev->kobj, "device");
@@ -649,7 +697,6 @@ int class_device_add(struct class_device *class_dev)
class_put(parent_class);
out1:
class_device_put(class_dev);
- kfree(class_name);
return error;
}
@@ -726,7 +773,6 @@ void class_device_del(struct class_device *class_dev)
struct class *parent_class = class_dev->class;
struct class_device *parent_device = class_dev->parent;
struct class_interface *class_intf;
- char *class_name = NULL;
if (parent_class) {
down(&parent_class->sem);
@@ -738,10 +784,8 @@ void class_device_del(struct class_device *class_dev)
}
if (class_dev->dev) {
- class_name = make_class_name(class_dev->class->name,
- &class_dev->kobj);
+ remove_deprecated_class_device_links(class_dev);
sysfs_remove_link(&class_dev->kobj, "device");
- sysfs_remove_link(&class_dev->dev->kobj, class_name);
}
sysfs_remove_link(&class_dev->kobj, "subsystem");
class_device_remove_file(class_dev, &class_dev->uevent_attr);
@@ -755,7 +799,6 @@ void class_device_del(struct class_device *class_dev)
class_device_put(parent_device);
class_put(parent_class);
- kfree(class_name);
}
void class_device_unregister(struct class_device *class_dev)
@@ -804,14 +847,17 @@ int class_device_rename(struct class_device *class_dev, char *new_name)
pr_debug("CLASS: renaming '%s' to '%s'\n", class_dev->class_id,
new_name);
+#ifdef CONFIG_SYSFS_DEPRECATED
if (class_dev->dev)
old_class_name = make_class_name(class_dev->class->name,
&class_dev->kobj);
+#endif
strlcpy(class_dev->class_id, new_name, KOBJ_NAME_LEN);
error = kobject_rename(&class_dev->kobj, new_name);
+#ifdef CONFIG_SYSFS_DEPRECATED
if (class_dev->dev) {
new_class_name = make_class_name(class_dev->class->name,
&class_dev->kobj);
@@ -819,6 +865,7 @@ int class_device_rename(struct class_device *class_dev, char *new_name)
new_class_name);
sysfs_remove_link(&class_dev->dev->kobj, old_class_name);
}
+#endif
class_device_put(class_dev);
kfree(old_class_name);
@@ -893,23 +940,6 @@ void class_interface_unregister(struct class_interface *class_intf)
class_put(parent);
}
-int virtual_device_parent(struct device *dev)
-{
- if (!dev->class)
- return -ENODEV;
-
- if (!dev->class->virtual_dir) {
- static struct kobject *virtual_dir = NULL;
-
- if (!virtual_dir)
- virtual_dir = kobject_add_dir(&devices_subsys.kset.kobj, "virtual");
- dev->class->virtual_dir = kobject_add_dir(virtual_dir, dev->class->name);
- }
-
- dev->kobj.parent = dev->class->virtual_dir;
- return 0;
-}
-
int __init classes_init(void)
{
int retval;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 68ad11af22b..e4b530ef757 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -17,6 +17,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/kdev_t.h>
+#include <linux/notifier.h>
#include <asm/semaphore.h>
@@ -153,20 +154,24 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp,
"MINOR=%u", MINOR(dev->devt));
}
+#ifdef CONFIG_SYSFS_DEPRECATED
/* add bus name (same as SUBSYSTEM, deprecated) */
if (dev->bus)
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"PHYSDEVBUS=%s", dev->bus->name);
+#endif
/* add driver name (PHYSDEV* values are deprecated)*/
if (dev->driver) {
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"DRIVER=%s", dev->driver->name);
+#ifdef CONFIG_SYSFS_DEPRECATED
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"PHYSDEVDRIVER=%s", dev->driver->name);
+#endif
}
/* terminate, set to next free slot, shrink available space */
@@ -383,6 +388,52 @@ void device_initialize(struct device *dev)
device_init_wakeup(dev, 0);
}
+#ifdef CONFIG_SYSFS_DEPRECATED
+static int setup_parent(struct device *dev, struct device *parent)
+{
+ /* Set the parent to the class, not the parent device */
+ /* this keeps sysfs from having a symlink to make old udevs happy */
+ if (dev->class)
+ dev->kobj.parent = &dev->class->subsys.kset.kobj;
+ else if (parent)
+ dev->kobj.parent = &parent->kobj;
+
+ return 0;
+}
+#else
+static int virtual_device_parent(struct device *dev)
+{
+ if (!dev->class)
+ return -ENODEV;
+
+ if (!dev->class->virtual_dir) {
+ static struct kobject *virtual_dir = NULL;
+
+ if (!virtual_dir)
+ virtual_dir = kobject_add_dir(&devices_subsys.kset.kobj, "virtual");
+ dev->class->virtual_dir = kobject_add_dir(virtual_dir, dev->class->name);
+ }
+
+ dev->kobj.parent = dev->class->virtual_dir;
+ return 0;
+}
+
+static int setup_parent(struct device *dev, struct device *parent)
+{
+ int error;
+
+ /* if this is a class device, and has no parent, create one */
+ if ((dev->class) && (parent == NULL)) {
+ error = virtual_device_parent(dev);
+ if (error)
+ return error;
+ } else if (parent)
+ dev->kobj.parent = &parent->kobj;
+
+ return 0;
+}
+#endif
+
/**
* device_add - add device to device hierarchy.
* @dev: device.
@@ -405,29 +456,29 @@ int device_add(struct device *dev)
if (!dev || !strlen(dev->bus_id))
goto Error;
- /* if this is a class device, and has no parent, create one */
- if ((dev->class) && (dev->parent == NULL)) {
- error = virtual_device_parent(dev);
- if (error)
- goto Error;
- }
+ pr_debug("DEV: registering device: ID = '%s'\n", dev->bus_id);
parent = get_device(dev->parent);
- pr_debug("DEV: registering device: ID = '%s'\n", dev->bus_id);
+ error = setup_parent(dev, parent);
+ if (error)
+ goto Error;
/* first, register with generic layer. */
kobject_set_name(&dev->kobj, "%s", dev->bus_id);
- if (parent)
- dev->kobj.parent = &parent->kobj;
-
- if ((error = kobject_add(&dev->kobj)))
+ error = kobject_add(&dev->kobj);
+ if (error)
goto Error;
/* notify platform of device entry */
if (platform_notify)
platform_notify(dev);
+ /* notify clients of device entry (new way) */
+ if (dev->bus)
+ blocking_notifier_call_chain(&dev->bus->bus_notifier,
+ BUS_NOTIFY_ADD_DEVICE, dev);
+
dev->uevent_attr.attr.name = "uevent";
dev->uevent_attr.attr.mode = S_IWUSR;
if (dev->driver)
@@ -461,13 +512,18 @@ int device_add(struct device *dev)
if (dev->class) {
sysfs_create_link(&dev->kobj, &dev->class->subsys.kset.kobj,
"subsystem");
- sysfs_create_link(&dev->class->subsys.kset.kobj, &dev->kobj,
- dev->bus_id);
+ /* If this is not a "fake" compatible device, then create the
+ * symlink from the class to the device. */
+ if (dev->kobj.parent != &dev->class->subsys.kset.kobj)
+ sysfs_create_link(&dev->class->subsys.kset.kobj,
+ &dev->kobj, dev->bus_id);
+#ifdef CONFIG_SYSFS_DEPRECATED
if (parent) {
sysfs_create_link(&dev->kobj, &dev->parent->kobj, "device");
class_name = make_class_name(dev->class->name, &dev->kobj);
sysfs_create_link(&dev->parent->kobj, &dev->kobj, class_name);
}
+#endif
}
if ((error = device_add_attrs(dev)))
@@ -504,6 +560,9 @@ int device_add(struct device *dev)
BusError:
device_pm_remove(dev);
PMError:
+ if (dev->bus)
+ blocking_notifier_call_chain(&dev->bus->bus_notifier,
+ BUS_NOTIFY_DEL_DEVICE, dev);
device_remove_groups(dev);
GroupError:
device_remove_attrs(dev);
@@ -586,22 +645,31 @@ void put_device(struct device * dev)
void device_del(struct device * dev)
{
struct device * parent = dev->parent;
- char *class_name = NULL;
struct class_interface *class_intf;
if (parent)
klist_del(&dev->knode_parent);
- if (dev->devt_attr)
+ if (dev->devt_attr) {
device_remove_file(dev, dev->devt_attr);
+ kfree(dev->devt_attr);
+ }
if (dev->class) {
sysfs_remove_link(&dev->kobj, "subsystem");
- sysfs_remove_link(&dev->class->subsys.kset.kobj, dev->bus_id);
- class_name = make_class_name(dev->class->name, &dev->kobj);
+ /* If this is not a "fake" compatible device, remove the
+ * symlink from the class to the device. */
+ if (dev->kobj.parent != &dev->class->subsys.kset.kobj)
+ sysfs_remove_link(&dev->class->subsys.kset.kobj,
+ dev->bus_id);
+#ifdef CONFIG_SYSFS_DEPRECATED
if (parent) {
- sysfs_remove_link(&dev->kobj, "device");
+ char *class_name = make_class_name(dev->class->name,
+ &dev->kobj);
sysfs_remove_link(&dev->parent->kobj, class_name);
+ kfree(class_name);
+ sysfs_remove_link(&dev->kobj, "device");
}
- kfree(class_name);
+#endif
+
down(&dev->class->sem);
/* notify any interfaces that the device is now gone */
list_for_each_entry(class_intf, &dev->class->interfaces, node)
@@ -614,13 +682,16 @@ void device_del(struct device * dev)
device_remove_file(dev, &dev->uevent_attr);
device_remove_groups(dev);
device_remove_attrs(dev);
+ bus_remove_device(dev);
/* Notify the platform of the removal, in case they
* need to do anything...
*/
if (platform_notify_remove)
platform_notify_remove(dev);
- bus_remove_device(dev);
+ if (dev->bus)
+ blocking_notifier_call_chain(&dev->bus->bus_notifier,
+ BUS_NOTIFY_DEL_DEVICE, dev);
device_pm_remove(dev);
kobject_uevent(&dev->kobj, KOBJ_REMOVE);
kobject_del(&dev->kobj);
@@ -679,12 +750,45 @@ int device_for_each_child(struct device * parent, void * data,
return error;
}
+/**
+ * device_find_child - device iterator for locating a particular device.
+ * @parent: parent struct device
+ * @data: Data to pass to match function
+ * @match: Callback function to check device
+ *
+ * This is similar to the device_for_each_child() function above, but it
+ * returns a reference to a device that is 'found' for later use, as
+ * determined by the @match callback.
+ *
+ * The callback should return 0 if the device doesn't match and non-zero
+ * if it does. If the callback returns non-zero and a reference to the
+ * current device can be obtained, this function will return to the caller
+ * and not iterate over any more devices.
+ */
+struct device * device_find_child(struct device *parent, void *data,
+ int (*match)(struct device *, void *))
+{
+ struct klist_iter i;
+ struct device *child;
+
+ if (!parent)
+ return NULL;
+
+ klist_iter_init(&parent->klist_children, &i);
+ while ((child = next_device(&i)))
+ if (match(child, data) && get_device(child))
+ break;
+ klist_iter_exit(&i);
+ return child;
+}
+
int __init devices_init(void)
{
return subsystem_register(&devices_subsys);
}
EXPORT_SYMBOL_GPL(device_for_each_child);
+EXPORT_SYMBOL_GPL(device_find_child);
EXPORT_SYMBOL_GPL(device_initialize);
EXPORT_SYMBOL_GPL(device_add);
@@ -807,8 +911,10 @@ int device_rename(struct device *dev, char *new_name)
pr_debug("DEVICE: renaming '%s' to '%s'\n", dev->bus_id, new_name);
+#ifdef CONFIG_SYSFS_DEPRECATED
if ((dev->class) && (dev->parent))
old_class_name = make_class_name(dev->class->name, &dev->kobj);
+#endif
if (dev->class) {
old_symlink_name = kmalloc(BUS_ID_SIZE, GFP_KERNEL);
@@ -823,6 +929,7 @@ int device_rename(struct device *dev, char *new_name)
error = kobject_rename(&dev->kobj, new_name);
+#ifdef CONFIG_SYSFS_DEPRECATED
if (old_class_name) {
new_class_name = make_class_name(dev->class->name, &dev->kobj);
if (new_class_name) {
@@ -831,6 +938,8 @@ int device_rename(struct device *dev, char *new_name)
sysfs_remove_link(&dev->parent->kobj, old_class_name);
}
}
+#endif
+
if (dev->class) {
sysfs_remove_link(&dev->class->subsys.kset.kobj,
old_symlink_name);
@@ -846,3 +955,95 @@ int device_rename(struct device *dev, char *new_name)
return error;
}
+
+
+static int device_move_class_links(struct device *dev,
+ struct device *old_parent,
+ struct device *new_parent)
+{
+#ifdef CONFIG_SYSFS_DEPRECATED
+ int error;
+ char *class_name;
+
+ class_name = make_class_name(dev->class->name, &dev->kobj);
+ if (!class_name) {
+ error = PTR_ERR(class_name);
+ class_name = NULL;
+ goto out;
+ }
+ if (old_parent) {
+ sysfs_remove_link(&dev->kobj, "device");
+ sysfs_remove_link(&old_parent->kobj, class_name);
+ }
+ error = sysfs_create_link(&dev->kobj, &new_parent->kobj, "device");
+ if (error)
+ goto out;
+ error = sysfs_create_link(&new_parent->kobj, &dev->kobj, class_name);
+ if (error)
+ sysfs_remove_link(&dev->kobj, "device");
+out:
+ kfree(class_name);
+ return error;
+#else
+ return 0;
+#endif
+}
+
+/**
+ * device_move - moves a device to a new parent
+ * @dev: the pointer to the struct device to be moved
+ * @new_parent: the new parent of the device
+ */
+int device_move(struct device *dev, struct device *new_parent)
+{
+ int error;
+ struct device *old_parent;
+
+ dev = get_device(dev);
+ if (!dev)
+ return -EINVAL;
+
+ if (!device_is_registered(dev)) {
+ error = -EINVAL;
+ goto out;
+ }
+ new_parent = get_device(new_parent);
+ if (!new_parent) {
+ error = -EINVAL;
+ goto out;
+ }
+ pr_debug("DEVICE: moving '%s' to '%s'\n", dev->bus_id,
+ new_parent->bus_id);
+ error = kobject_move(&dev->kobj, &new_parent->kobj);
+ if (error) {
+ put_device(new_parent);
+ goto out;
+ }
+ old_parent = dev->parent;
+ dev->parent = new_parent;
+ if (old_parent)
+ klist_remove(&dev->knode_parent);
+ klist_add_tail(&dev->knode_parent, &new_parent->klist_children);
+ if (!dev->class)
+ goto out_put;
+ error = device_move_class_links(dev, old_parent, new_parent);
+ if (error) {
+ /* We ignore errors on cleanup since we're hosed anyway... */
+ device_move_class_links(dev, new_parent, old_parent);
+ if (!kobject_move(&dev->kobj, &old_parent->kobj)) {
+ klist_remove(&dev->knode_parent);
+ if (old_parent)
+ klist_add_tail(&dev->knode_parent,
+ &old_parent->klist_children);
+ }
+ put_device(new_parent);
+ goto out;
+ }
+out_put:
+ put_device(old_parent);
+out:
+ put_device(dev);
+ return error;
+}
+
+EXPORT_SYMBOL_GPL(device_move);
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index c5d6bb4290a..510e7884975 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -26,33 +26,28 @@
#define to_drv(node) container_of(node, struct device_driver, kobj.entry)
-/**
- * device_bind_driver - bind a driver to one device.
- * @dev: device.
- *
- * Allow manual attachment of a driver to a device.
- * Caller must have already set @dev->driver.
- *
- * Note that this does not modify the bus reference count
- * nor take the bus's rwsem. Please verify those are accounted
- * for before calling this. (It is ok to call with no other effort
- * from a driver's probe() method.)
- *
- * This function must be called with @dev->sem held.
- */
-int device_bind_driver(struct device *dev)
+static void driver_bound(struct device *dev)
{
- int ret;
-
if (klist_node_attached(&dev->knode_driver)) {
printk(KERN_WARNING "%s: device %s already bound\n",
__FUNCTION__, kobject_name(&dev->kobj));
- return 0;
+ return;
}
pr_debug("bound device '%s' to driver '%s'\n",
dev->bus_id, dev->driver->name);
+
+ if (dev->bus)
+ blocking_notifier_call_chain(&dev->bus->bus_notifier,
+ BUS_NOTIFY_BOUND_DRIVER, dev);
+
klist_add_tail(&dev->knode_driver, &dev->driver->klist_devices);
+}
+
+static int driver_sysfs_add(struct device *dev)
+{
+ int ret;
+
ret = sysfs_create_link(&dev->driver->kobj, &dev->kobj,
kobject_name(&dev->kobj));
if (ret == 0) {
@@ -65,6 +60,36 @@ int device_bind_driver(struct device *dev)
return ret;
}
+static void driver_sysfs_remove(struct device *dev)
+{
+ struct device_driver *drv = dev->driver;
+
+ if (drv) {
+ sysfs_remove_link(&drv->kobj, kobject_name(&dev->kobj));
+ sysfs_remove_link(&dev->kobj, "driver");
+ }
+}
+
+/**
+ * device_bind_driver - bind a driver to one device.
+ * @dev: device.
+ *
+ * Allow manual attachment of a driver to a device.
+ * Caller must have already set @dev->driver.
+ *
+ * Note that this does not modify the bus reference count
+ * nor take the bus's rwsem. Please verify those are accounted
+ * for before calling this. (It is ok to call with no other effort
+ * from a driver's probe() method.)
+ *
+ * This function must be called with @dev->sem held.
+ */
+int device_bind_driver(struct device *dev)
+{
+ driver_bound(dev);
+ return driver_sysfs_add(dev);
+}
+
struct stupid_thread_structure {
struct device_driver *drv;
struct device *dev;
@@ -85,30 +110,32 @@ static int really_probe(void *void_data)
drv->bus->name, drv->name, dev->bus_id);
dev->driver = drv;
+ if (driver_sysfs_add(dev)) {
+ printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
+ __FUNCTION__, dev->bus_id);
+ goto probe_failed;
+ }
+
if (dev->bus->probe) {
ret = dev->bus->probe(dev);
- if (ret) {
- dev->driver = NULL;
+ if (ret)
goto probe_failed;
- }
} else if (drv->probe) {
ret = drv->probe(dev);
- if (ret) {
- dev->driver = NULL;
+ if (ret)
goto probe_failed;
- }
- }
- if (device_bind_driver(dev)) {
- printk(KERN_ERR "%s: device_bind_driver(%s) failed\n",
- __FUNCTION__, dev->bus_id);
- /* How does undo a ->probe? We're screwed. */
}
+
+ driver_bound(dev);
ret = 1;
pr_debug("%s: Bound Device %s to Driver %s\n",
drv->bus->name, dev->bus_id, drv->name);
goto done;
probe_failed:
+ driver_sysfs_remove(dev);
+ dev->driver = NULL;
+
if (ret == -ENODEV || ret == -ENXIO) {
/* Driver matched, but didn't support device
* or device not found.
@@ -284,10 +311,15 @@ static void __device_release_driver(struct device * dev)
drv = dev->driver;
if (drv) {
get_driver(drv);
- sysfs_remove_link(&drv->kobj, kobject_name(&dev->kobj));
+ driver_sysfs_remove(dev);
sysfs_remove_link(&dev->kobj, "driver");
klist_remove(&dev->knode_driver);
+ if (dev->bus)
+ blocking_notifier_call_chain(&dev->bus->bus_notifier,
+ BUS_NOTIFY_UNBIND_DRIVER,
+ dev);
+
if (dev->bus && dev->bus->remove)
dev->bus->remove(dev);
else if (drv->remove)
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 14615694ae9..4bad2870c48 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -21,6 +21,8 @@
#include <linux/firmware.h>
#include "base.h"
+#define to_dev(obj) container_of(obj, struct device, kobj)
+
MODULE_AUTHOR("Manuel Estrada Sainz <ranty@debian.org>");
MODULE_DESCRIPTION("Multi purpose firmware loading support");
MODULE_LICENSE("GPL");
@@ -86,12 +88,12 @@ firmware_timeout_store(struct class *class, const char *buf, size_t count)
static CLASS_ATTR(timeout, 0644, firmware_timeout_show, firmware_timeout_store);
-static void fw_class_dev_release(struct class_device *class_dev);
+static void fw_dev_release(struct device *dev);
-static int firmware_class_uevent(struct class_device *class_dev, char **envp,
- int num_envp, char *buffer, int buffer_size)
+static int firmware_uevent(struct device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size)
{
- struct firmware_priv *fw_priv = class_get_devdata(class_dev);
+ struct firmware_priv *fw_priv = dev_get_drvdata(dev);
int i = 0, len = 0;
if (!test_bit(FW_STATUS_READY, &fw_priv->status))
@@ -110,21 +112,21 @@ static int firmware_class_uevent(struct class_device *class_dev, char **envp,
static struct class firmware_class = {
.name = "firmware",
- .uevent = firmware_class_uevent,
- .release = fw_class_dev_release,
+ .dev_uevent = firmware_uevent,
+ .dev_release = fw_dev_release,
};
-static ssize_t
-firmware_loading_show(struct class_device *class_dev, char *buf)
+static ssize_t firmware_loading_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- struct firmware_priv *fw_priv = class_get_devdata(class_dev);
+ struct firmware_priv *fw_priv = dev_get_drvdata(dev);
int loading = test_bit(FW_STATUS_LOADING, &fw_priv->status);
return sprintf(buf, "%d\n", loading);
}
/**
* firmware_loading_store - set value in the 'loading' control file
- * @class_dev: class_device pointer
+ * @dev: device pointer
* @buf: buffer to scan for loading control value
* @count: number of bytes in @buf
*
@@ -134,11 +136,11 @@ firmware_loading_show(struct class_device *class_dev, char *buf)
* 0: Conclude the load and hand the data to the driver code.
* -1: Conclude the load with an error and discard any written data.
**/
-static ssize_t
-firmware_loading_store(struct class_device *class_dev,
- const char *buf, size_t count)
+static ssize_t firmware_loading_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
- struct firmware_priv *fw_priv = class_get_devdata(class_dev);
+ struct firmware_priv *fw_priv = dev_get_drvdata(dev);
int loading = simple_strtol(buf, NULL, 10);
switch (loading) {
@@ -174,15 +176,14 @@ firmware_loading_store(struct class_device *class_dev,
return count;
}
-static CLASS_DEVICE_ATTR(loading, 0644,
- firmware_loading_show, firmware_loading_store);
+static DEVICE_ATTR(loading, 0644, firmware_loading_show, firmware_loading_store);
static ssize_t
firmware_data_read(struct kobject *kobj,
char *buffer, loff_t offset, size_t count)
{
- struct class_device *class_dev = to_class_dev(kobj);
- struct firmware_priv *fw_priv = class_get_devdata(class_dev);
+ struct device *dev = to_dev(kobj);
+ struct firmware_priv *fw_priv = dev_get_drvdata(dev);
struct firmware *fw;
ssize_t ret_count = count;
@@ -234,7 +235,7 @@ fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
/**
* firmware_data_write - write method for firmware
- * @kobj: kobject for the class_device
+ * @kobj: kobject for the device
* @buffer: buffer being written
* @offset: buffer offset for write in total data store area
* @count: buffer size
@@ -246,8 +247,8 @@ static ssize_t
firmware_data_write(struct kobject *kobj,
char *buffer, loff_t offset, size_t count)
{
- struct class_device *class_dev = to_class_dev(kobj);
- struct firmware_priv *fw_priv = class_get_devdata(class_dev);
+ struct device *dev = to_dev(kobj);
+ struct firmware_priv *fw_priv = dev_get_drvdata(dev);
struct firmware *fw;
ssize_t retval;
@@ -280,13 +281,12 @@ static struct bin_attribute firmware_attr_data_tmpl = {
.write = firmware_data_write,
};
-static void
-fw_class_dev_release(struct class_device *class_dev)
+static void fw_dev_release(struct device *dev)
{
- struct firmware_priv *fw_priv = class_get_devdata(class_dev);
+ struct firmware_priv *fw_priv = dev_get_drvdata(dev);
kfree(fw_priv);
- kfree(class_dev);
+ kfree(dev);
module_put(THIS_MODULE);
}
@@ -298,26 +298,23 @@ firmware_class_timeout(u_long data)
fw_load_abort(fw_priv);
}
-static inline void
-fw_setup_class_device_id(struct class_device *class_dev, struct device *dev)
+static inline void fw_setup_device_id(struct device *f_dev, struct device *dev)
{
/* XXX warning we should watch out for name collisions */
- strlcpy(class_dev->class_id, dev->bus_id, BUS_ID_SIZE);
+ strlcpy(f_dev->bus_id, dev->bus_id, BUS_ID_SIZE);
}
-static int
-fw_register_class_device(struct class_device **class_dev_p,
- const char *fw_name, struct device *device)
+static int fw_register_device(struct device **dev_p, const char *fw_name,
+ struct device *device)
{
int retval;
struct firmware_priv *fw_priv = kzalloc(sizeof(*fw_priv),
GFP_KERNEL);
- struct class_device *class_dev = kzalloc(sizeof(*class_dev),
- GFP_KERNEL);
+ struct device *f_dev = kzalloc(sizeof(*f_dev), GFP_KERNEL);
- *class_dev_p = NULL;
+ *dev_p = NULL;
- if (!fw_priv || !class_dev) {
+ if (!fw_priv || !f_dev) {
printk(KERN_ERR "%s: kmalloc failed\n", __FUNCTION__);
retval = -ENOMEM;
goto error_kfree;
@@ -331,55 +328,54 @@ fw_register_class_device(struct class_device **class_dev_p,
fw_priv->timeout.data = (u_long) fw_priv;
init_timer(&fw_priv->timeout);
- fw_setup_class_device_id(class_dev, device);
- class_dev->dev = device;
- class_dev->class = &firmware_class;
- class_set_devdata(class_dev, fw_priv);
- retval = class_device_register(class_dev);
+ fw_setup_device_id(f_dev, device);
+ f_dev->parent = device;
+ f_dev->class = &firmware_class;
+ dev_set_drvdata(f_dev, fw_priv);
+ retval = device_register(f_dev);
if (retval) {
- printk(KERN_ERR "%s: class_device_register failed\n",
+ printk(KERN_ERR "%s: device_register failed\n",
__FUNCTION__);
goto error_kfree;
}
- *class_dev_p = class_dev;
+ *dev_p = f_dev;
return 0;
error_kfree:
kfree(fw_priv);
- kfree(class_dev);
+ kfree(f_dev);
return retval;
}
-static int
-fw_setup_class_device(struct firmware *fw, struct class_device **class_dev_p,
- const char *fw_name, struct device *device, int uevent)
+static int fw_setup_device(struct firmware *fw, struct device **dev_p,
+ const char *fw_name, struct device *device,
+ int uevent)
{
- struct class_device *class_dev;
+ struct device *f_dev;
struct firmware_priv *fw_priv;
int retval;
- *class_dev_p = NULL;
- retval = fw_register_class_device(&class_dev, fw_name, device);
+ *dev_p = NULL;
+ retval = fw_register_device(&f_dev, fw_name, device);
if (retval)
goto out;
/* Need to pin this module until class device is destroyed */
__module_get(THIS_MODULE);
- fw_priv = class_get_devdata(class_dev);
+ fw_priv = dev_get_drvdata(f_dev);
fw_priv->fw = fw;
- retval = sysfs_create_bin_file(&class_dev->kobj, &fw_priv->attr_data);
+ retval = sysfs_create_bin_file(&f_dev->kobj, &fw_priv->attr_data);
if (retval) {
printk(KERN_ERR "%s: sysfs_create_bin_file failed\n",
__FUNCTION__);
goto error_unreg;
}
- retval = class_device_create_file(class_dev,
- &class_device_attr_loading);
+ retval = device_create_file(f_dev, &dev_attr_loading);
if (retval) {
- printk(KERN_ERR "%s: class_device_create_file failed\n",
+ printk(KERN_ERR "%s: device_create_file failed\n",
__FUNCTION__);
goto error_unreg;
}
@@ -388,11 +384,11 @@ fw_setup_class_device(struct firmware *fw, struct class_device **class_dev_p,
set_bit(FW_STATUS_READY, &fw_priv->status);
else
set_bit(FW_STATUS_READY_NOHOTPLUG, &fw_priv->status);
- *class_dev_p = class_dev;
+ *dev_p = f_dev;
goto out;
error_unreg:
- class_device_unregister(class_dev);
+ device_unregister(f_dev);
out:
return retval;
}
@@ -401,7 +397,7 @@ static int
_request_firmware(const struct firmware **firmware_p, const char *name,
struct device *device, int uevent)
{
- struct class_device *class_dev;
+ struct device *f_dev;
struct firmware_priv *fw_priv;
struct firmware *firmware;
int retval;
@@ -417,12 +413,11 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
goto out;
}
- retval = fw_setup_class_device(firmware, &class_dev, name, device,
- uevent);
+ retval = fw_setup_device(firmware, &f_dev, name, device, uevent);
if (retval)
goto error_kfree_fw;
- fw_priv = class_get_devdata(class_dev);
+ fw_priv = dev_get_drvdata(f_dev);
if (uevent) {
if (loading_timeout > 0) {
@@ -430,7 +425,7 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
add_timer(&fw_priv->timeout);
}
- kobject_uevent(&class_dev->kobj, KOBJ_ADD);
+ kobject_uevent(&f_dev->kobj, KOBJ_ADD);
wait_for_completion(&fw_priv->completion);
set_bit(FW_STATUS_DONE, &fw_priv->status);
del_timer_sync(&fw_priv->timeout);
@@ -445,7 +440,7 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
}
fw_priv->fw = NULL;
mutex_unlock(&fw_lock);
- class_device_unregister(class_dev);
+ device_unregister(f_dev);
goto out;
error_kfree_fw:
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 940ce41f188..d1df4a08792 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -388,6 +388,11 @@ static int platform_drv_probe(struct device *_dev)
return drv->probe(dev);
}
+static int platform_drv_probe_fail(struct device *_dev)
+{
+ return -ENXIO;
+}
+
static int platform_drv_remove(struct device *_dev)
{
struct platform_driver *drv = to_platform_driver(_dev->driver);
@@ -451,6 +456,49 @@ void platform_driver_unregister(struct platform_driver *drv)
}
EXPORT_SYMBOL_GPL(platform_driver_unregister);
+/**
+ * platform_driver_probe - register driver for non-hotpluggable device
+ * @drv: platform driver structure
+ * @probe: the driver probe routine, probably from an __init section
+ *
+ * Use this instead of platform_driver_register() when you know the device
+ * is not hotpluggable and has already been registered, and you want to
+ * remove its run-once probe() infrastructure from memory after the driver
+ * has bound to the device.
+ *
+ * One typical use for this would be with drivers for controllers integrated
+ * into system-on-chip processors, where the controller devices have been
+ * configured as part of board setup.
+ *
+ * Returns zero if the driver registered and bound to a device, else returns
+ * a negative error code and with the driver not registered.
+ */
+int platform_driver_probe(struct platform_driver *drv,
+ int (*probe)(struct platform_device *))
+{
+ int retval, code;
+
+ /* temporary section violation during probe() */
+ drv->probe = probe;
+ retval = code = platform_driver_register(drv);
+
+ /* Fixup that section violation, being paranoid about code scanning
+ * the list of drivers in order to probe new devices. Check to see
+ * if the probe was successful, and make sure any forced probes of
+ * new devices fail.
+ */
+ spin_lock(&platform_bus_type.klist_drivers.k_lock);
+ drv->probe = NULL;
+ if (code == 0 && list_empty(&drv->driver.klist_devices.k_list))
+ retval = -ENODEV;
+ drv->driver.probe = platform_drv_probe_fail;
+ spin_unlock(&platform_bus_type.klist_drivers.k_lock);
+
+ if (code != retval)
+ platform_driver_unregister(drv);
+ return retval;
+}
+EXPORT_SYMBOL_GPL(platform_driver_probe);
/* modalias support enables more hands-off userspace setup:
* (a) environment variable lets new-style hotplug events work once system is
diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 28dccb730af..3d12b85b096 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -94,54 +94,63 @@ static struct attribute_group topology_attr_group = {
.name = "topology"
};
+static cpumask_t topology_dev_map = CPU_MASK_NONE;
+
/* Add/Remove cpu_topology interface for CPU device */
-static int __cpuinit topology_add_dev(struct sys_device * sys_dev)
+static int __cpuinit topology_add_dev(unsigned int cpu)
{
- return sysfs_create_group(&sys_dev->kobj, &topology_attr_group);
+ int rc;
+ struct sys_device *sys_dev = get_cpu_sysdev(cpu);
+
+ rc = sysfs_create_group(&sys_dev->kobj, &topology_attr_group);
+ if (!rc)
+ cpu_set(cpu, topology_dev_map);
+ return rc;
}
-static int __cpuinit topology_remove_dev(struct sys_device * sys_dev)
+#ifdef CONFIG_HOTPLUG_CPU
+static void __cpuinit topology_remove_dev(unsigned int cpu)
{
+ struct sys_device *sys_dev = get_cpu_sysdev(cpu);
+
+ if (!cpu_isset(cpu, topology_dev_map))
+ return;
+ cpu_clear(cpu, topology_dev_map);
sysfs_remove_group(&sys_dev->kobj, &topology_attr_group);
- return 0;
}
static int __cpuinit topology_cpu_callback(struct notifier_block *nfb,
- unsigned long action, void *hcpu)
+ unsigned long action, void *hcpu)
{
unsigned int cpu = (unsigned long)hcpu;
- struct sys_device *sys_dev;
+ int rc = 0;
- sys_dev = get_cpu_sysdev(cpu);
switch (action) {
- case CPU_ONLINE:
- topology_add_dev(sys_dev);
+ case CPU_UP_PREPARE:
+ rc = topology_add_dev(cpu);
break;
+ case CPU_UP_CANCELED:
case CPU_DEAD:
- topology_remove_dev(sys_dev);
+ topology_remove_dev(cpu);
break;
}
- return NOTIFY_OK;
+ return rc ? NOTIFY_BAD : NOTIFY_OK;
}
-
-static struct notifier_block __cpuinitdata topology_cpu_notifier =
-{
- .notifier_call = topology_cpu_callback,
-};
+#endif
static int __cpuinit topology_sysfs_init(void)
{
- int i;
+ int cpu;
+ int rc;
- for_each_online_cpu(i) {
- topology_cpu_callback(&topology_cpu_notifier, CPU_ONLINE,
- (void *)(long)i);
+ for_each_online_cpu(cpu) {
+ rc = topology_add_dev(cpu);
+ if (rc)
+ return rc;
}
-
- register_hotcpu_notifier(&topology_cpu_notifier);
+ hotcpu_notifier(topology_cpu_callback, 0);
return 0;
}
device_initcall(topology_sysfs_init);
-
diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c
index 7ea0f48f8fa..2df5cf4ec74 100644
--- a/drivers/cdrom/cdrom.c
+++ b/drivers/cdrom/cdrom.c
@@ -2133,16 +2133,14 @@ static int cdrom_read_cdda_bpc(struct cdrom_device_info *cdi, __u8 __user *ubuf,
rq->timeout = 60 * HZ;
bio = rq->bio;
- if (rq->bio)
- blk_queue_bounce(q, &rq->bio);
-
if (blk_execute_rq(q, cdi->disk, rq, 0)) {
struct request_sense *s = rq->sense;
ret = -EIO;
cdi->last_sense = s->sense_key;
}
- if (blk_rq_unmap_user(bio, len))
+ rq->bio = bio;
+ if (blk_rq_unmap_user(rq))
ret = -EFAULT;
if (ret)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 2af12fc4511..24f922f1278 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -855,39 +855,6 @@ config TANBAC_TB0219
depends TANBAC_TB022X
select GPIO_VR41XX
-menu "Ftape, the floppy tape device driver"
-
-config FTAPE
- tristate "Ftape (QIC-80/Travan) support"
- depends on BROKEN_ON_SMP && (ALPHA || X86)
- ---help---
- If you have a tape drive that is connected to your floppy
- controller, say Y here.
-
- Some tape drives (like the Seagate "Tape Store 3200" or the Iomega
- "Ditto 3200" or the Exabyte "Eagle TR-3") come with a "high speed"
- controller of their own. These drives (and their companion
- controllers) are also supported if you say Y here.
-
- If you have a special controller (such as the CMS FC-10, FC-20,
- Mountain Mach-II, or any controller that is based on the Intel 82078
- FDC like the high speed controllers by Seagate and Exabyte and
- Iomega's "Ditto Dash") you must configure it by selecting the
- appropriate entries from the "Floppy tape controllers" sub-menu
- below and possibly modify the default values for the IRQ and DMA
- channel and the IO base in ftape's configuration menu.
-
- If you want to use your floppy tape drive on a PCI-bus based system,
- please read the file <file:drivers/char/ftape/README.PCI>.
-
- The ftape kernel driver is also available as a runtime loadable
- module. To compile this driver as a module, choose M here: the
- module will be called ftape.
-
-source "drivers/char/ftape/Kconfig"
-
-endmenu
-
source "drivers/char/agp/Kconfig"
source "drivers/char/drm/Kconfig"
@@ -994,7 +961,7 @@ config HPET
help
If you say Y here, you will have a miscdevice named "/dev/hpet/". Each
open selects one of the timers supported by the HPET. The timers are
- non-periodioc and/or periodic.
+ non-periodic and/or periodic.
config HPET_RTC_IRQ
bool "HPET Control RTC IRQ" if !HPET_EMULATE_RTC
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 777cad04509..b1fcdab9094 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -78,7 +78,6 @@ obj-$(CONFIG_TOSHIBA) += toshiba.o
obj-$(CONFIG_I8K) += i8k.o
obj-$(CONFIG_DS1620) += ds1620.o
obj-$(CONFIG_HW_RANDOM) += hw_random/
-obj-$(CONFIG_FTAPE) += ftape/
obj-$(CONFIG_COBALT_LCD) += lcd.o
obj-$(CONFIG_PPDEV) += ppdev.o
obj-$(CONFIG_NWBUTTON) += nwbutton.o
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index c3920016168..5ff457b41ef 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -1054,7 +1054,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
{
struct page * page;
- page = alloc_page(GFP_KERNEL);
+ page = alloc_page(GFP_KERNEL | GFP_DMA32);
if (page == NULL)
return NULL;
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index d1ede7db5a1..555b3a8ab49 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -169,7 +169,7 @@ static void *i8xx_alloc_pages(void)
{
struct page * page;
- page = alloc_pages(GFP_KERNEL, 2);
+ page = alloc_pages(GFP_KERNEL | GFP_DMA32, 2);
if (page == NULL)
return NULL;
@@ -387,11 +387,7 @@ static void intel_i830_init_gtt_entries(void)
/* We obtain the size of the GTT, which is also stored (for some
* reason) at the top of stolen memory. Then we add 4KB to that
* for the video BIOS popup, which is also stored in there. */
-
- if (IS_I965)
- size = 512 + 4;
- else
- size = agp_bridge->driver->fetch_size() + 4;
+ size = agp_bridge->driver->fetch_size() + 4;
if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82830_HB ||
agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) {
@@ -805,6 +801,26 @@ static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
return 0;
}
+
+/*
+ * The i965 supports 36-bit physical addresses, but to keep
+ * the format of the GTT the same, the bits that don't fit
+ * in a 32-bit word are shifted down to bits 4..7.
+ *
+ * Gcc is smart enough to notice that "(addr >> 28) & 0xf0"
+ * is always zero on 32-bit architectures, so no need to make
+ * this conditional.
+ */
+static unsigned long intel_i965_mask_memory(struct agp_bridge_data *bridge,
+ unsigned long addr, int type)
+{
+ /* Shift high bits down */
+ addr |= (addr >> 28) & 0xf0;
+
+ /* Type checking must be done elsewhere */
+ return addr | bridge->driver->masks[type].mask;
+}
+
static int intel_i965_fetch_size(void)
{
struct aper_size_info_fixed *values;
@@ -832,7 +848,8 @@ static int intel_i965_fetch_size(void)
agp_bridge->previous_size = agp_bridge->current_size = (void *)(values + offset);
- return values[offset].size;
+ /* The i965 GTT is always sized as if it had a 512kB aperture size */
+ return 512;
}
/* The intel i965 automatically initializes the agp aperture during POST.
@@ -1584,7 +1601,7 @@ static struct agp_bridge_driver intel_i965_driver = {
.fetch_size = intel_i965_fetch_size,
.cleanup = intel_i915_cleanup,
.tlb_flush = intel_i810_tlbflush,
- .mask_memory = intel_i810_mask_memory,
+ .mask_memory = intel_i965_mask_memory,
.masks = intel_i810_masks,
.agp_enable = intel_i810_agp_enable,
.cache_flush = global_cache_flush,
diff --git a/drivers/char/ftape/Kconfig b/drivers/char/ftape/Kconfig
deleted file mode 100644
index 0d65189a7ae..00000000000
--- a/drivers/char/ftape/Kconfig
+++ /dev/null
@@ -1,330 +0,0 @@
-#
-# Ftape configuration
-#
-config ZFTAPE
- tristate "Zftape, the VFS interface"
- depends on FTAPE
- ---help---
- Normally, you want to say Y or M. DON'T say N here or you
- WON'T BE ABLE TO USE YOUR FLOPPY TAPE DRIVE.
-
- The ftape module itself no longer contains the routines necessary
- to interface with the kernel VFS layer (i.e. to actually write data
- to and read data from the tape drive). Instead the file system
- interface (i.e. the hardware independent part of the driver) has
- been moved to a separate module.
-
- To compile this driver as a module, choose M here: the
- module will be called zftape.
-
- Regardless of whether you say Y or M here, an additional runtime
- loadable module called `zft-compressor' which contains code to
- support user transparent on-the-fly compression based on Ross
- William's lzrw3 algorithm will be produced. If you have enabled the
- kernel module loader (i.e. have said Y to "Kernel module loader
- support", above) then `zft-compressor' will be loaded
- automatically by zftape when needed.
-
- Despite its name, zftape does NOT use compression by default.
-
-config ZFT_DFLT_BLK_SZ
- int "Default block size"
- depends on ZFTAPE
- default "10240"
- ---help---
- If unsure leave this at its default value, i.e. 10240. Note that
- you specify only the default block size here. The block size can be
- changed at run time using the MTSETBLK tape operation with the
- MTIOCTOP ioctl (i.e. with "mt -f /dev/qft0 setblk #BLKSZ" from the
- shell command line).
-
- The probably most striking difference between zftape and previous
- versions of ftape is the fact that all data must be written or read
- in multiples of a fixed block size. The block size defaults to
- 10240 which is what GNU tar uses. The values for the block size
- should be either 1 or multiples of 1024 up to a maximum value of
- 63488 (i.e. 62 K). If you specify `1' then zftape's builtin
- compression will be disabled.
-
- Reasonable values are `10240' (GNU tar's default block size),
- `5120' (afio's default block size), `32768' (default block size some
- backup programs assume for SCSI tape drives) or `1' (no restriction
- on block size, but disables builtin compression).
-
-comment "The compressor will be built as a module only!"
- depends on FTAPE && ZFTAPE
-
-config ZFT_COMPRESSOR
- tristate
- depends on FTAPE!=n && ZFTAPE!=n
- default m
-
-config FT_NR_BUFFERS
- int "Number of ftape buffers (EXPERIMENTAL)"
- depends on FTAPE && EXPERIMENTAL
- default "3"
- help
- Please leave this at `3' unless you REALLY know what you are doing.
- It is not necessary to change this value. Values below 3 make the
- proper use of ftape impossible, values greater than 3 are a waste of
- memory. You can change the amount of DMA memory used by ftape at
- runtime with "mt -f /dev/qft0 setdrvbuffer #NUMBUFFERS". Each buffer
- wastes 32 KB of memory. Please note that this memory cannot be
- swapped out.
-
-config FT_PROC_FS
- bool "Enable procfs status report (+2kb)"
- depends on FTAPE && PROC_FS
- ---help---
- Optional. Saying Y will result in creation of a directory
- `/proc/ftape' under the /proc file system. The files can be viewed
- with your favorite pager (i.e. use "more /proc/ftape/history" or
- "less /proc/ftape/history" or simply "cat /proc/ftape/history"). The
- file will contain some status information about the inserted
- cartridge, the kernel driver, your tape drive, the floppy disk
- controller and the error history for the most recent use of the
- kernel driver. Saying Y will enlarge the size of the ftape driver
- by approximately 2 KB.
-
- WARNING: When compiling ftape as a module (i.e. saying M to "Floppy
- tape drive") it is dangerous to use ftape's /proc file system
- interface. Accessing `/proc/ftape' while the module is unloaded will
- result in a kernel Oops. This cannot be fixed from inside ftape.
-
-choice
- prompt "Debugging output"
- depends on FTAPE
- default FT_NORMAL_DEBUG
-
-config FT_NORMAL_DEBUG
- bool "Normal"
- ---help---
- This option controls the amount of debugging output the ftape driver
- is ABLE to produce; it does not increase or diminish the debugging
- level itself. If unsure, leave this at its default setting,
- i.e. choose "Normal".
-
- Ftape can print lots of debugging messages to the system console
- resp. kernel log files. Reducing the amount of possible debugging
- output reduces the size of the kernel module by some KB, so it might
- be a good idea to use "None" for emergency boot floppies.
-
- If you want to save memory then the following strategy is
- recommended: leave this option at its default setting "Normal" until
- you know that the driver works as expected, afterwards reconfigure
- the kernel, this time specifying "Reduced" or "None" and recompile
- and install the kernel as usual. Note that choosing "Excessive"
- debugging output does not increase the amount of debugging output
- printed to the console but only makes it possible to produce
- "Excessive" debugging output.
-
- Please read <file:Documentation/ftape.txt> for a short description
- how to control the amount of debugging output.
-
-config FT_FULL_DEBUG
- bool "Excessive"
- help
- Extremely verbose output for driver debugging purposes.
-
-config FT_NO_TRACE
- bool "Reduced"
- help
- Reduced tape driver debugging output.
-
-config FT_NO_TRACE_AT_ALL
- bool "None"
- help
- Suppress all debugging output from the tape drive.
-
-endchoice
-
-comment "Hardware configuration"
- depends on FTAPE
-
-choice
- prompt "Floppy tape controllers"
- depends on FTAPE
- default FT_STD_FDC
-
-config FT_STD_FDC
- bool "Standard"
- ---help---
- Only change this setting if you have a special controller. If you
- didn't plug any add-on card into your computer system but just
- plugged the floppy tape cable into the already existing floppy drive
- controller then you don't want to change the default setting,
- i.e. choose "Standard".
-
- Choose "MACH-2" if you have a Mountain Mach-2 controller.
- Choose "FC-10/FC-20" if you have a Colorado FC-10 or FC-20
- controller.
- Choose "Alt/82078" if you have another controller that is located at
- an IO base address different from the standard floppy drive
- controller's base address of `0x3f0', or uses an IRQ (interrupt)
- channel different from `6', or a DMA channel different from
- `2'. This is necessary for any controller card that is based on
- Intel's 82078 FDC such as Seagate's, Exabyte's and Iomega's "high
- speed" controllers.
-
- If you choose something other than "Standard" then please make
- sure that the settings for the IO base address and the IRQ and DMA
- channel in the configuration menus below are correct. Use the manual
- of your tape drive to determine the correct settings!
-
- If you are already successfully using your tape drive with another
- operating system then you definitely should use the same settings
- for the IO base, the IRQ and DMA channel that have proven to work
- with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the hardware setup. The hardware configuration can be changed at
- boot time (when ftape is compiled into the kernel, i.e. if you
- have said Y to "Floppy tape drive") or module load time (i.e. if you
- have said M to "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time. If you want to use your floppy tape drive on a
- PCI-bus based system, please read the file
- <file:drivers/char/ftape/README.PCI>.
-
-config FT_MACH2
- bool "MACH-2"
-
-config FT_PROBE_FC10
- bool "FC-10/FC-20"
-
-config FT_ALT_FDC
- bool "Alt/82078"
-
-endchoice
-
-comment "Consult the manuals of your tape drive for the correct settings!"
- depends on FTAPE && !FT_STD_FDC
-
-config FT_FDC_BASE
- hex "IO base of the floppy disk controller"
- depends on FTAPE && !FT_STD_FDC
- default "0"
- ---help---
- You don't need to specify a value if the following default
- settings for the base IO address are correct:
- <<< MACH-2 : 0x1E0 >>>
- <<< FC-10/FC-20: 0x180 >>>
- <<< Secondary : 0x370 >>>
- Secondary refers to a secondary FDC controller like the "high speed"
- controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
- Please make sure that the setting for the IO base address
- specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
- CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
- successfully using the tape drive with another operating system then
- you definitely should use the same settings for the IO base that has
- proven to work with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the IO base. The hardware configuration can be changed at boot time
- (when ftape is compiled into the kernel, i.e. if you specified Y to
- "Floppy tape drive") or module load time (i.e. if you have said M to
- "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time.
-
-config FT_FDC_IRQ
- int "IRQ channel of the floppy disk controller"
- depends on FTAPE && !FT_STD_FDC
- default "0"
- ---help---
- You don't need to specify a value if the following default
- settings for the interrupt channel are correct:
- <<< MACH-2 : 6 >>>
- <<< FC-10/FC-20: 9 >>>
- <<< Secondary : 6 >>>
- Secondary refers to secondary a FDC controller like the "high speed"
- controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
- Please make sure that the setting for the IO base address
- specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
- CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
- successfully using the tape drive with another operating system then
- you definitely should use the same settings for the IO base that has
- proven to work with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the IRQ channel. The hardware configuration can be changed at boot
- time (when ftape is compiled into the kernel, i.e. if you said Y to
- "Floppy tape drive") or module load time (i.e. if you said M to
- "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time.
-
-config FT_FDC_DMA
- int "DMA channel of the floppy disk controller"
- depends on FTAPE && !FT_STD_FDC
- default "0"
- ---help---
- You don't need to specify a value if the following default
- settings for the DMA channel are correct:
- <<< MACH-2 : 2 >>>
- <<< FC-10/FC-20: 3 >>>
- <<< Secondary : 2 >>>
- Secondary refers to a secondary FDC controller like the "high speed"
- controllers delivered by Seagate or Exabyte or Iomega's Ditto Dash.
- Please make sure that the setting for the IO base address
- specified here is correct. USE THE MANUAL OF YOUR TAPE DRIVE OR
- CONTROLLER CARD TO DETERMINE THE CORRECT SETTING. If you are already
- successfully using the tape drive with another operating system then
- you definitely should use the same settings for the IO base that has
- proven to work with that other OS.
-
- Note that this menu lets you specify only the default setting for
- the DMA channel. The hardware configuration can be changed at boot
- time (when ftape is compiled into the kernel, i.e. if you said Y to
- "Floppy tape drive") or module load time (i.e. if you said M to
- "Floppy tape drive").
-
- Please read also the file <file:Documentation/ftape.txt> which
- contains a short description of the parameters that can be set at
- boot or load time.
-
-config FT_FDC_THR
- int "Default FIFO threshold (EXPERIMENTAL)"
- depends on FTAPE && EXPERIMENTAL
- default "8"
- help
- Set the FIFO threshold of the FDC. If this is higher the DMA
- controller may serve the FDC after a higher latency time. If this is
- lower, fewer DMA transfers occur leading to less bus contention.
- You may try to tune this if ftape annoys you with "reduced data
- rate because of excessive overrun errors" messages. However, this
- doesn't seem to have too much effect.
-
- If unsure, don't touch the initial value, i.e. leave it at "8".
-
-config FT_FDC_MAX_RATE
- int "Maximal data rate to use (EXPERIMENTAL)"
- depends on FTAPE && EXPERIMENTAL
- default "2000"
- ---help---
- With some motherboard/FDC combinations ftape will not be able to
- run your FDC/tape drive combination at the highest available
- speed. If this is the case you'll encounter "reduced data rate
- because of excessive overrun errors" messages and lots of retries
- before ftape finally decides to reduce the data rate.
-
- In this case it might be desirable to tell ftape beforehand that
- it need not try to run the tape drive at the highest available
- speed. If unsure, leave this disabled, i.e. leave it at 2000
- bits/sec.
-
-config FT_ALPHA_CLOCK
- int "CPU clock frequency of your DEC Alpha" if ALPHA
- depends on FTAPE
- default "0"
- help
- On some DEC Alpha machines the CPU clock frequency cannot be
- determined automatically, so you need to specify it here ONLY if
- running a DEC Alpha, otherwise this setting has no effect.
-
diff --git a/drivers/char/ftape/Makefile b/drivers/char/ftape/Makefile
deleted file mode 100644
index 0e67d2f8b7e..00000000000
--- a/drivers/char/ftape/Makefile
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# Copyright (C) 1997 Claus Heine.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING. If not, write to
-# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-# $Source: /homes/cvs/ftape-stacked/ftape/Makefile,v $
-# $Revision: 1.4 $
-# $Date: 1997/10/05 19:17:56 $
-#
-# Makefile for the QIC-40/80/3010/3020 floppy-tape driver for
-# Linux.
-#
-
-obj-$(CONFIG_FTAPE) += lowlevel/
-obj-$(CONFIG_ZFTAPE) += zftape/
-obj-$(CONFIG_ZFT_COMPRESSOR) += compressor/
diff --git a/drivers/char/ftape/README.PCI b/drivers/char/ftape/README.PCI
deleted file mode 100644
index 18de159d36e..00000000000
--- a/drivers/char/ftape/README.PCI
+++ /dev/null
@@ -1,81 +0,0 @@
-Some notes for ftape users with PCI motherboards:
-=================================================
-
-The problem:
-------------
-
-There have been some problem reports from people using PCI-bus based
-systems getting overrun errors.
-I wasn't able to reproduce these until I ran ftape on a Intel Plato
-(Premiere PCI II) motherboard with bios version 1.00.08AX1.
-It turned out that if GAT (Guaranteed Access Timing) is enabled (?)
-ftape gets a lot of overrun errors.
-The problem disappears when disabling GAT in the bios.
-Note that Intel removed this setting (permanently disabled) from the
-1.00.10AX1 bios !
-
-It looks like that if GAT is enabled there are often large periods
-(greater than 120 us !??) on the ISA bus that the DMA controller cannot
-service the floppy disk controller.
-I cannot imagine this being acceptable in a decent PCI implementation.
-Maybe this is a `feature' of the chipset. I can only speculate why
-Intel choose to remove the option from the latest Bios...
-
-The lesson of this all is that there may be other motherboard
-implementations having the same of similar problems.
-If you experience a lot of overrun errors during a backup to tape,
-see if there is some setting in the Bios that may influence the
-bus timing.
-
-I judge this a hardware problem and not a limitation of ftape ;-)
-My DOS backup software seems to be suffering from the same problems
-and even refuses to run at 1 Mbps !
-Ftape will reduce the data-rate from 1 Mbps to 500 Kbps if the number
-of overrun errors on a track exceeds a threshold.
-
-
-Possible solutions:
--------------------
-
-Some of the problems were solved by upgrading the (flash) bios.
-Other suggest that it has to do with the FDC being on the PCI
-bus, but that is not the case with the Intel Premiere II boards.
-[If upgrading the bios doesn't solve the problem you could try
-a floppy disk controller on the isa-bus].
-
-Here is a list of systems and recommended BIOS settings:
-
-
- Intel Premiere PCI (Revenge):
-
-Bios version 1.00.09.AF2 is reported to work.
-
-
-
- Intel Premiere PCI II (Plato):
-
-Bios version 1.00.10.AX1 and version 11 beta are ok.
-If using version 1.00.08.AX1, GAT must be disabled !
-
-
-
- ASUS PCI/I-SP3G:
-
-Preferred settings: ISA-GAT-mode : disabled
- DMA-linebuffer-mode : standard
- ISA-masterbuffer-mode : standard
-
-
- DELL Dimension XPS P90
-
-Bios version A2 is reported to be broken, while bios version A5 works.
-You can get a flash bios upgrade from http://www.dell.com
-
-
-To see if you're having the GAT problem, try making a backup
-under DOS. If it's very slow and often repositions you're
-probably having this problem.
-
- --//--
- LocalWords: ftape PCI bios GAT ISA DMA chipset Mbps Kbps FDC isa AF ok ASUS
- LocalWords: SP linebuffer masterbuffer XPS http www com
diff --git a/drivers/char/ftape/RELEASE-NOTES b/drivers/char/ftape/RELEASE-NOTES
deleted file mode 100644
index 03799dbc05a..00000000000
--- a/drivers/char/ftape/RELEASE-NOTES
+++ /dev/null
@@ -1,966 +0,0 @@
-Hey, Emacs, we're -*-Text-*- mode!
-
-===== Release notes for ftape-3.04d 25/11/97 =====
-- The correct pre-processor statement for "else if" is "#elif" not
- "elsif".
-- Need to call zft_reset_position() when overwriting cartridges
- previously written with ftape-2.x, sftape, or ancient
- (pre-ftape-3.x) versions of zftape.
-
-===== Release notes for ftape-3.04c 16/11/97 =====
-- fdc_probe() was calling DUMPREGS with a result length of "1" which
- was just fine. Undo previous change.
-
-===== Release notes for ftape-3.04b 14/11/97 =====
-
-- patches/2.x.x/floppy.c.diff was somewhat broken, releasing i/o
- regions it never had allocated.
-- fdc_probe() was calling DUMPREGS with a result length of "1" instead
- of "10"
-- Writing deleted data marks if the first segents on track zero are
- should work now.
-- ftformat should now be able to handle those cases where the tape
- drive sets the read only status bit (QIC-40/80 cartridges with
- QIC-3010/3020 tape drives) because the header segment is damaged.
-- the MTIOCFTCMD ioctl may now be issued by the superuser ONLY.
-
-===== Release notes for ftape-3.04a 12/11/97 =====
-- Fix an "infinite loop can't be killed by signal" bug in
- ftape_get_drive_status(). Only relevant when trying to access
- buggy/misconfigured hardware
-- Try to compensate a bug in the HP Colorado T3000's firmware: it
- doesn't set the write protect bit for QIC80/QIC40 cartridges.
-
-===== Release notes for ftape-3.04 06/11/97 =====
-- If positioning with fast seeking fails fall back to a slow seek
- before giving up.
-- (nearly) no retries on "no data errors" when verifying after
- formatting. Improved tuning of the bad sector map after formatting.
-- the directory layout has changed again to allow for easier kernel
- integration
-- Module parameter "ftape_tracing" now is called "ft_tracing" because
- the "ftape_tracing" variable has the version checksum attached to it.
-- `/proc/ftape' interface for 2.0.* kernels. `/proc/ftape' no longer
- is a directory but a file that contains all the information formerly
- provided in separate files under the `/proc/ftape/' directory.
-- Most of the configuration options have been prefixed by "CONFIG_FT_"
- in preparation of the kernel inclusion. The Makefiles under
- "./ftape/" should be directly usable by the kernel.
-- The MODVERSIONS stuff is now auto-detected.
-- Broke backslashed multi line options in MCONFIG into separate lines
- using GNU-make's "+=" feature.
-- The html and dvi version of the manual is now installed under
- '/usr/doc/ftape` with 'make install`
-- New SMP define in MCONFIG. ftape works with SMP if this is defined.
-- attempt to cope with "excessive overrun errors" by gradually
- increasing FDC FIFO threshold. But this doesn't seem to have too
- much an effect.
-- New load time configuration parameter "ft_fdc_rate_limit". If you
- encounter too many overrun errors with a 2Mb controller then you
- might want to set this to 1000.
-- overrun errors on the last sector in a segment sometimes result in
- a zero DMA residue. Dunno why, but compensate for it.
-- there were still fdc_read() timeout errors. I think I have fixed it
- now, please FIXME.
-- Sometimes ftape_write() failed to re-start the tape drive when a
- segment without a good sector was reached ("wait for empty segment
- failed"). This is fixed. Especially important for > QIC-3010.
-- sftape (aka ftape-2.x) has vanished. I didn't work on it for
- ages. It is probably still possible to use the old code with
- ftape-3.04, if one really needs it (BUT RECOMPILE IT)
-- zftape no longer alters the contents of already existing volume
- table entries, which makes it possible to fill in missing fields,
- like time stamps using some user space program.
-- ./contrib/vtblc/ contains such a program.
-- new perl script ./contrib/scripts/listtape that list the contents of a
- floppy tape cartridge parsing the output of "mt volinfo" + "mt fsf"
-- the MTWEOF implementation has changed a little bit (after I had a
- look at amanda). Calling MTWEOF while the tape is still held open
- after writing something to the tape now will terminate the current
- volume, and start a new one at the current position.
-- the volume table maintained by zftape now is a doubly linked list
- that grows dynamically as needed.
-
- formatting floppy tape cartridges
- ---------------------------------
- * there is a new user space formatting program that does most of the
- dirty work in user space (auto-detect, computing the sector
- coordinates, adjusting time stamps and statistics). It has a
- simple command line interface.
- * ftape-format.o has vanished, it has been folded into the low level
- ftape.o module, and the ioctl interface into zftape.o. Most of the
- complicated stuff has been moved to user space, so there was no
- need for a separate module anymore.
- * there is a new ioctl MTIOCFTCMD that sends a bare QIC-117 command
- to the tape drive.
- * there is a new mmap() feature to map the dma buffers into user
- space to be used by the user level formatting program.
- * Formatting of yet unformatted or totally degaussed cartridges
- should be possible now. FIXME.
-
-===== Release notes for ftape-3.03b, <forgot the exact date> ====
-
-ftape-3.03b was released as a beta release only. Its main new feature
-was support of the DITTO-2GB drive. This was made possible by reverse
-engineering done by <fill in his name> after Iomega failed to support
-ftape. Although they had promised to do so (this makes me feel a bit
-sad and uncomfortable about Iomega).
-
-===== Release notes for ftape-3.03a, 22/05/97 ====
-
-- Finally fixed auto-un-loading of modules for kernels > 2.1.18
-- Add an "uninstall" target to the Makefile
-- removed the kdtime hack
-- texi2www didn't properly set the back-reference from a footnote back
- to the regular text.
-
- zftape specific
- ---------------
- * hide the old compression map volume. Taper doesn't accept the
- presence of non-Taper volumes and Taper-written volume on the same
- tape.
- * EOD (End Of Data) handling was still broken: the expected behavior
- is to return a zero byte count at the first attempt to read past
- EOD, return a zero byte count at the second attempt to read past
- EOD and THEN return -EIO.
-
- ftape-format specific
- ---------------------
- * Detection of QIC-40 cartridges in select_tape_format() was broken
- and made it impossible to format QIC-3010/3020 cartridges.
- * There are strange "TR-1 Extra" cartridges out there which weren't
- detected properly because the don't strictly conform to the
- QIC-80, Rev. N, spec.
-
-===== Release notes for ftape-3.03, 30/04/97 =====
-
-- Removed kernel integration code from the package. I plan to provide
- a package that can be integrated into the stock kernel separately
- (hopefully soon).
- As a result, a simple `make' command now will build everything.
-- ALL compile time configuration options have been moved to the file
- `MCONFIG'.
-- Quite a few `low level' changes to allow formatting of cartridges.
-- formatting is implemented as a separate module `ftape-format.o'. The
- modified `mt' program contains sample code that shows how to use it.
-- The VFS interface has been moved from the `ftape.o' module to the
- high level modules `zftape.o' resp. `sftape.o'. `ftape.o' contains
- the hardware support only.
-- A bit of /proc support for kernels > 2.1.28
-- Moved documentation to Doc subdir. INSTALL now contains some real
- installation notes.
-- `install' target in Makefile.
-
-zftape specific:
-----------------
-
-- zftape works for large cartridges now ( > 2^31 bytes)
-- MTIOCVOLINFO and MTIOCGETSIZE now return the size in KILOBYTES,
- NO LONGER in bytes.
-
-- permissions for write access to a cartridge have changed:
- * zftape now also takes the file access mode into account
- * zftape no longer allows writing in the middle of the recorded
- media. The tape has to be positioned at BOT or EOD for write
- access.
-
-- MTBSF has changed. It used to position at the beginning of the
- previous file when called with count 1. This was different from the
- expected behavior for other Un*x tape drivers (i.e. SCSI). MTBSF
- with count 1 should merely position at the beginning of the current
- volume. Fixed. As a result, `tar --verify' now produces the desired
- result: it verifies the last written volume, not the pre-last
- written volume.
-
-- The compression map has vanished --> no need for `mt erase' any
- more. Fast seeking in a compressed volume is still be possible, but
- takes slightly longer. As a side effect, you may experience an
- additional volume showing up in front of all others for old
- cartridges. This is the tape volume that holds the compression map.
-
-- The compression support for zftape has been moved to a separate
- module `zft-compressor'. DON'T forget to load it before trying to
- read back compressed volumes. The stock `zftape.o' module probes for
- the module `zft-compressor' using the kerneld message channel; you
- have to install `zft-compressor.o' in a place where modprobe can
- find it if you want to use this.
-
-- New experimental feature that tries to get the broken down GMT time
- from user space via a kernel daemon message channel. You need to
- compile and start the `kdtime' daemon contained in the contrib
- directory to use it. Needed (?) for time stamps in the header
- segments and the volume table.
-
-- variable block size mode via MTSETBLK 0
-
-- keep modules locked in memory after the block size has been changed
-
-sftape specific:
-----------------
-
-- end of tape handling should be fixed, i.e. multi volume archives
- written with `afio' can be read back now.
-
-
-===== Release notes for ftape-3.02a, 09/01/97 =====
-
-No big news:
-- call zft_init() resp. sft_init() when compiling the entire stuff
- into the kernel image.
-- fix bug in ftape-setup.c when NO_TRACE_AT_ALL was defined.
-- fix bug in sftape-eof.c/zftape-eof.c for old kernels (1.2.*)
-- add support for new module interface for recent kernels
-
-===== Release notes for ftape-3.02, 16/12/96 =====
-- Fixed the `FDC unlock command failed' bug in fdc-io.c. When the FIFO
- was already locked when ftape was loaded, ftape failed to unlock it.
-- Fixed compilation of `contrib/gnumt'. It now finds `mtio.h' even if
- ftape is NOT included into the kernel source tree.
-- fc-10.c: include <asm/io.h> for inb() and outb().
-- ftape/sftape/zftape: all global variable now have either a `ftape_',
- a `ft_', `sft_', `zft_' or `qic_' prefix to prevent name clashes
- with other parts of the kernel when including ftape into the kernel
- source tree.
-- Kerneld support has changed. `ftape' now searches for a module
- `ftape-frontend' when none of the frontend (`sftape' or `zftape') is
- loaded. Please refer to the `Installation/Loading ftape' section of
- the TeXinfo manual.
-- Add load resp. boot-time configuration of ftape. There are now
- variables ft_fdc_base, ft_fdc_dma and ft_fdc_irq corresponding to
- the former FDC_BASE etc. compile time definitions. One can also use
- the kernel command line parameters to configure the driver if it is
- compiled into the kernel. Also, the FC-10/FC-20 support is load-time
- configurable now as well as the MACH-II hack (ft_probe_fc10,
- resp. ft_mach2). Please refer to the section `Installation/Configure
- ftape' of the TeXinfo manual.
-- I removed the MODVERSIONS option from `Makefile.module'. Let me alone
- with ftape and MODVERSIONS unless you include the ftape sources into
- the kernel source tree.
-- new vendors in `vendors.h':
- * HP Colorado T3000
- * ComByte DoublePlay (including a bug fix for their broken
- formatting software, thanks to whraven@njackn.com)
- * Iomega DITTO 2GIG. NOTE: this drive cannot work with ftape because
- the logical data layout of the cartridges used by this drive does
- NOT conform to the QIC standards, it is a special Iomega specific
- format. I've sent mail to Iomega but didn't receive an answer
- yet. If you want this drive to be supported by ftape, ask Iomega
- to give me information about it.
-- zftape:
- * re-introduced the MTIOC_ZFTAPE_GETBLKSZ ioctl for compatibility
- with zftape 1.06a and earlier. Please don't use it when writing
- new software, use the MTIOCVOLINFO ioctl instead.
- * Major overhaul of the code that updates the header segments. Never
- change the tape label unless erasing the tape. Thus we almost
- never need to write the header segments, unless we would modify
- the bad sector map which isn't done yet. Updating of volume table
- and compression map more secure now although it takes a bit
- longer.
- * Fixed bug when aborting a write operation with a signal: zftape
- now finishes the current volume (i.e. writes an eof marker) at the
- current position. It didn't before which led to somehow *strange*
- behavior in this cases.
- * Keep module locked in memory when using it with the non-rewinding
- devices and the tape is not logical at BOT. Needed for kerneld
- support.
-- sftape:
- * Keep module locked in memory when using it with the non-rewinding
- devices and the tape is not logical at BOT. Needed for kerneld
- support.
-
-===== Release notes for ftape-3.01, 14/11/96 =====
-
-- Fixed silly bugs in ftape-3.00:
- * MAKEDEV.ftape: major device number must be 27, not 23
- * sftape/sftape-read.c: sftape_read_header_segments() called
- itself recursively instead of calling ftape_read_header_segment()
- * zftape/qic-vtbl.h: conversion of ftape's file marks to zftape's
- internal volume table was broken.
- * patches/2.x.x/linux-2.0.21.dif: my RCS (resp. CVS) system replaced
- the `$Revison:' etc. macros in the `ftape.h' concerning part of the
- patch :-( Fixed.
- * info/ftape.info: Fixed misspellings (`cp' <-> `cp -r' etc.)
- * when ftape/sftape or ftape/zftape was compiled into the kernel the
- variable ftape_status was declared twice. Fixed.
- * removed reference to undeclared variable kernel_version when not
- compiling as module
- * fixed a bug introduced by the use of bit-fields for some flags
- (i.e. write_protected, no_cartridge, formatted)
- * flag `header_read' is now reset correctly to zero when tape is
- removed.
-- fixed a bug in sftape/sftape-eof.c that was already in the original
- ftape code. MTFSF/BSF was not handled correctly when positioned
- right before the file mark (think of tar)
-- Changed TRACE macros (following a suggestion of Marcin Dalecki) to use
- the predefined __FUNCTION__ macro of GCC. Spares about 4k of code.
-- added new vendor id for Iomega DITTO 2GIG
-- fixed a bug already present in zftape-1.06 when aborting a write
- with a signal: we now finish the current volume at that
- position. Header segments remain NOT up to date until an explicit call
- to MTREW or MTOFFL is done.
-
-===== Release notes for ftape-3.00, 14/10/96 =====
-
-- Merged ftape with zftape. There are three modules now:
- ftape for the hardware support, sftape for the implementation of the
- original ftape eof mark stuff and zftape that implements zftape's way
- of handling things (compression, volume table, tape blocks of
- constant length)
-- Documentation in TeXinfo format in the `info' subdirectory.
-- New ioctls for zftape. See zftape/zftape.h
-- Dummy formatting ioctl for ftape. See ftape.h
-- Kernel patch files for the 2.*.* series to include ftape-3.00 in the
- kernel source tree. These includes a kernel compatible Config.in
- script and fairly large online information for the kernel configure
- script.
-- Support for compiling with Linux-1.2.13.
-- Modified GNU mt from their cpio package that can handle the new
- ioctls.
-- ftape/sftape/zftape is kerneld save now!
-
-Notes on sftape:
-- sftape implements the eof handling code of the original ftape. If
- you like to stick with the original ftape stuff, you have to use
- this module, not zftape.
-- sftape is kerneld save, unlike the original ftape.
-- we keep the entire header segment now in memory, so no need to read
- it before updating the header segments. Additional memory
- consumption: 256 bytes.
-
-Notes for zftape:
-- zftape has support for tapes with format code 6 now, which use a
- slightly different volume table format compared with other floppy
- tapes.
-- new ioctls for zftape. Have a look at zftape/zftape.h
-- The internal volume table representation has changed for zftape. Old
- cartridges are converted automatically.
-- zftape no longer uses compression map segments, which have vanished
- from the QIC specs, but creates volume table entry that reserves
- enough space for the compression map.
-- zftape is kerneld save now.
-- we keep the entire header segment now in memory, so no need to read
- it before updating the header segments. Additional memory
- consumption: 256 bytes.
-
-Notes for contrib/gnumt:
-- modified mt from the GNU cpio package that supports all the new
- ioctls of zftape.
-Notes for contrib/swapout:
-- This contains the swapout.c program that was written by Kai
- Harrekilde-Pederson. I simply added a Makefile.
-
-===== Release notes for ftape-2.10, 14/10/96 =====
-
-The ftape maintainer has changed.
-Kai Harrekilde-Petersen <khp@dolphinics.no>
-has resigned from maintaining ftape, and I,
-Claus-Justus Heine <claus@momo.math.rwth-aachen.de>,
-have taken over.
-
-- Added support for tapes with `format code 6', i.e. QIC-3020 tapes
- with more than 2^16 segments.
-- merged changes made by Bas Laarhoven with ftape-2.09. Refer
- to his release notes below. I've included them into this
- file unchanged for your reference.
-- disabled call stack back trace for now. This new feature
- introduced by the interim release 2.0.x still seems to
- be buggy.
-- Tried to minimize differences between the ftape version
- to be included into the kernel source tree and the standalone
- module version.
-- Reintroduced support for Linux-1.2.13. Please refer to the
- Install-guide.
-
-===== Release notes for ftape-2.09, 16/06/96 =====
-
-There aren't any really big news in this release, mostly just that I
-(the maintainer) have changed my email address (due to a new job). My
-new address is <khp@dolphinics.no>
-
-- The CLK_48MHZ and FDC_82078SL options has gone (all 2Mbps cards seem
- to use a 48MHz oscillator anyway and I haven't heard of an 'SL
- chip out there).
-- The S82078B has been `downgraded' to i82077AA compability.
-- TESTING option revived. Right now, it'll enable the (seriously broken)
- 2Mbps code. If you enable it, you'll experience a tape drive that's
- *really* out to lunch!
-- Some (bold) changes in the init code. Please notify me if they
- break things for you.
-
-===== Release notes for ftape-2.08, 14/03/96 =====
-
-If you correct a problem with ftape, please send your patch to
-khp@dolphinics.no too.
-
-- Updated to reflect that NR_MEM_LISTS is gone in 1.3.74
-- Teac 700 added to list of known drives.
-- The registered device name is now "ft" rather than "ftape".
-
-===== Release notes for ftape-2.07a, 14/03/96 =====
-
-Bugfixes by Marcin Dalecki <dalecki@namu03.gwdg.de>:
-- In the last release it just compiled against 1.3.70;
- now the params to request_irq() and free_irq are() are fixed, so it also
- works in 1.3.73 :-)
-- Support for modules is now correct for newer kernels.
-
-===== Release notes for ftape-2.07, 04/03/96 =====
-
-
-- ftape updated to compile against 1.3.70.
-- Iomega 700 and Wangtek 3200 recognised.
-
-
-===== Release notes for ftape-2.06b, 13/02/96 =====
-
-Another simple bugfix version.
-
-- Jumbo 700 recognised.
-- Typo in vendors.h fixed.
-
-
-===== Release notes for ftape-2.06a, 10/02/96 =====
-
-This release is a simple bugfix version.
-
-- Linux/SMP: ftape *should* work.
-- FC-10/20: Only accepts IRQs 3-7, or 9. If IRQ 9, properly tell the card
- to use IRQ 2. Thanks to Greg Crider (gcrider@iclnet.org) for finding and
- locating this bug and testing the patch.
-- Insight drive recognised correctly again.
-- Motor-on wakeup version of the Iomega 250 drive added
-
-
-===== Release notes for ftape-2.06, 28/01/96 =====
-
-Special thanks go to Neal Friedman and Steven Sorbom for their
-help in producing and testing this release.
-
-I have continued to clean up the code, with an eye towards inclusion
-of ftape in Linus' official kernel (In fact, as I type this, I am
-running on a kernel with ftape support statically linked). I have
-test-compiled ftape against my 1.2.13 tree without problems.
-Hopefully, everything should be OK for the v1.2.x people.
-
-WARNING! Alan Cox has mailed me that ftape does *NOT* work with
-Linux/SMP. If you try to run ftape under Linux/SMP, it will cause a
-kernel deadlock (which is worse than a panic).
-
-- QIC-3020/TR-3: 1Mbps support works. Neal is capable of reading and
- writing data to a tape. ftape will automatically detect the type of
- tape (e.g. TR-3 vs QIC-80) and move the fdc in and out of
- "perpendicular mode" as necessary.
-- 2Mbps support is disabled by default, since it is not fully
- debugged. If you are adventurous, remove -DFDC_82078SL in the
- Makefile and see what happens :-)
-- fdc detection: silly bugs removed (Only 2Mbps fdcs were affected)
- and added detection of the National Semiconductors PC8744 fdc chip
- (used in the PC873xx "super-IO" chips).
-- Removed warning about incompatible types when compiling with Linux
- 1.2.x.
-- README.PCI updated with info about the DELL Dimension XPS P90.
-- Connor TST3200R added to detected drives.
-- `swapout' utility added to distribution. It will dirty 5Meg of
- memory, trying to swap out other programs. Just say `make swapout'
- to build it. ftape will do this automatically Real Soon Now (ie:
- when I have found out which kernel memory alloc function to call).
-
-
-===== Release notes for ftape-2.05, 08/01/96 =====
-
-- For v1.2.x Kernels, you must apply the patch linux-1.2/ksyms.patch to
- the kernel and rebuild it (it adds the __get_dma_pages symbol to
- ksyms.c).
-- Included new asm-i386/io.h file from v1.3.x kernel series, to enable
- gcc v.2.7.[12] to compile v1.2.x kernels (linux-1.2/io.h).
-- Module versions: If you wish to compile ftape as a versioned module,
- you must first compile your kernel with CONFIG_MODVERSIONS=y.
- Otherwise, you will get complaints that <linux/modversions.h> does not
- exist (if that happens, a `touch modversions.h' will help you out).
-- CLK_48MHZ: new define in the Makefile (default: non-zero). If you have
- a tape controller card that uses the i82078(-1) chip, but cannot get
- it to work with ftape, try set it to 0 (and please report this).
-- QIC-3010/3020: Complete support is still missing, but will hopefully
- come soon. Steven Sorbom has kindly provided me with hints about
- this. Writing of QIC-3020 tapes definitely does NOT work (do not try
- it! - the drive will not be in "perpendicular mode" and this will ruin
- the formatting info on the tape).
-- ftape_num_buffers is out of fashion: use NR_BUFFERS instead (and
- recompile if you want to change it :-).
-
-
-===== Release notes for ftape-2.04, 01/01/96 =====
-
-This version by Kai Harrekilde-Petersen <khp@dolphinics.no>
-
-- ALERT! Support for Kernels earlier then v1.1.85 is about to go away.
- I intend to clean up some of the code (getting rid of an annoyingly
- large numbers of #ifdef mostly), which means that support for
- pre-1.1.85 kernels must go as well.
-- NR_FTAPE_BUFFERS is gone; You can instead select the number of dma
- buffers by saying `insmod ftape.o ftape_num_buffer=<n>' instead.
-- Configure script gone. ftape will now automagically determine your
- kernel version by /usr/include/linux/version.h instead.
-- CONFIG_MODVERSIONS now work. All combinations of versioned /
- unversioned kernel and ftape module works (at least with my 1.3.52
- kernel).
-- If you have problems with inserting ftape into an old (1.2.x)
- kernel (e.g. insmod says "1.2.8 does not match 1.2.8), recompile
- your modules utilities with your new compiler.
-- Reveal TB1400 drive added to vendors.h
-- Support for the i82078-1 (2Mbps) chip is coming along. The
- biggest problem is that I don't have such a card, which makes
- testing / debugging somewhat problematic. The second biggest
- problem is that I do not have the QIC-3010/3020 standards either.
- Status right now is that the chip is detected, and it should be
- possible to put it into 2Mbps mode. However, I do not know what
- "extras" are needed to complete the support. Although putting the
- i82078 into 1Mbps mode ought to work out of the box, it doesn't
- (right now, ftape complains about id am errors).
-
-
-===== Release notes for ftape-2.04beta5, 29/12/95 =====
-
-Bas offline linux-tape
-----------------------
-For reasons only known to the majordomo mail list processor, Bas was
-kicked off the linux-tape list sometime during the summer. Being
-overworked at his for-pay job, he didn't notice it much. Instead I
-(Kai, khp@dolphinics.no) has worked on ftape to produce the 2.04(beta)
-version.
-
-zftape
-------
-Note that there exists a much improved version of ftape, written by
-Claus-Justus Heine <claus@willi.math.rwth-aachen.de> which is named
-zftape, which conforms to the QIC-80 specs on how to mark backups, and
-is capable of doing automatic compression. However, zftape makes
-substantial changes to ftape, and I (Kai) have therefore declined to
-integrate zftape into ftape. Hopefully, this will happen soon.
-
-CONFIG_QIC117 removed from the kernel
--------------------------------------
-The biggest change of all is that ftape now will allocate its dma
-buffers when it is inserted. The means that the CONFIG_QIC117 option
-has disappeared from the Linux kernel as of v1.3.34. If you have an
-earlier kernel, simply answer 'no' to the question will do the trick
-(if you get complains about __get_free_pages() missing, contact the
-linux-tape mailing list).
-
-Note that ftape-2.04beta will work equally well on kernels with and
-without `ftape support'. The only catch is, that you will waste
-around 96-128Kb of precious DMA'able memory on a box that has ftape
-support compiled in.
-
-Now for the real changes:
-
-- FC-20 can now use DMA channels 1, 2, and 3. Thanks to Daniel
- Cohen, catman@wpi.edu.
-- ftape no longer requires a (gigantic) 96Kb buffer to be statically
- allocated by the kernel.
-- Added new Iomega drive (8882) to vendors.h
-- -fno-strength-reduce added to Makefile, since GCC is broken.
-- i82078-1 (2Mbps) FDC support started.
-
-
-===== Release notes for ftape-2.03b, 27/05/95 =====
-
-- Prevented verify_area to return error if called with zero length.
-- Fixed a bug in flush_buffers that caused too much padding to be
- written when a final segment had bad sectors.
-- Increased maximum fast-seek overshoot value from 5 to 10 segments.
-- Breaking loop after 5 retries when positioning fails.
-- Fixed wrong calculation of tape length for QIC-3010 and QIC-3020
- tapes (densities were swapped).
-- Fixed wrong calculation of overshoot on seek_forward: Wrong sign
- of error.
-- Suppress (false) error message due to new tape loaded.
-- Added two new CMS drives (11c3 and 11c5) to vendors.h.
-
-
-===== Release notes for ftape-2.03a, 09/05/95 =====
-
-- Fixed display of old error (even if already cleared) in ftape_open.
-- Improved tape length detection, ioctls would fail for 425 ft tapes.
- Until the tape length is calculated with data from the header
- segment, we'll use worst-case values.
-- Clear eof_mark after rewinding ioctls.
-- Fixed wrong version message (2.03 had 2.02g id).
-- Fixed bug that caused the fdc to be reset very frequently.
- This shouldn't affect normal operation but the timing of the
- report routines has changed again and that may cause problems.
- We'll just have to find out....
-- Implemented correct write precompensation setting for QIC-3010/3020.
-- Cleaned up fdc_interrupt_wait routine. Hope it still works :-)
-- Finally removed (already disabled) special eof mark handling for
- gnu tar.
-- Changed order of get_dma_residue and disable_dma in fdc-isr.c
- because the current order would fail on at least one system.
- We're back to the original order again, hope (and expect) this
- doesn't break any other system.
-
-
-===== Release notes for ftape-2.03, 07/05/95 =====
-
-(Changes refer to the first ftape-2.02 release)
-
-Support for wide and extended length tapes
-------------------------------------------
-The Conner TSM 420 and 850 drives are reported to be working.
-I haven't received any reports about other brands; the TSM 420
-and 850 seem to be the most widely used wide drives.
-Extended length tapes (425 ft) with normal QIC-80 drives
-are operating too (At least I've had no reports stating otherwise).
-_Not_ yet completely supported (although they may work) are
-QIC-3020 drives and 2 Mbps floppy disk controllers won't work at
-the highest speed.
-If someone is kind enough to send me one of these, I'll include
-support for it too ;-)
-
-Easier configuration
---------------------
-Problems due to wrong settings in the Makefile are prevented
-by using a configuration script that sets the necessary (kernel
-version dependent) compile time options.
-This kernel version is now determined from the sources found
-at /usr/src/linux, or if not found, the old way using
-/proc/version.
-Versioned modules will be used automatically when supported
-by- and configured in- the kernel.
-Note that the current modules code (1.1.87) is still broken
-and _needs_ the fix included in the insmod directory.
-Please don't send me any more Oops reports caused by insmod :-(
-
-Reduced module size
--------------------
-The standard module size is much reduced and some compile time
-options can even reduce it further. (I don't recommend this
-for normal use but it can be handy for rescue diskettes)
-
-Option: Approx. module size:
-
-<standard> 150 Kb
-NO_TRACE 125 Kb
-NO_TRACE_AT_ALL 67 Kb
-
-
-Much improved driver interruption
----------------------------------
-Most possible loops have been broken and signal detection
-has been improved.
-In most cases the driver can be aborted by ^C (SIGINT) and
-SIGKILL (kill -9) will generate be a sure kill.
-(Note that aborting a tape operation may damage the last
-data written to tape)
-
-Improved error recovery
------------------------
-Ftape now returns an error (ENODATA) to the application if
-a segment proves to be unrecoverable and then skips the
-bad segment.
-This causes most applications to continue to work (tar
-and afio) loosing only a small amount (up to 29 Kb) of data.
-Retried read operations will now be done slightly off-track
-to improve the chance of success. Serious head off-track
-errors will be detected.
-
-FC-10 and FC-20 controllers
----------------------------
-Ftape now supports both the old CMS FC-10 and the newer FC-20
-controllers.
-Because the operation of these cards is still undocumented,
-thus far they will only work with the default settings (See
-Makefile). Any feed-back on how to use them with other settings
-will be welcome !
-Compilation will fail if one changes the settings to illegal
-values.
-
-Kernels and compilers
----------------------
-Ftape is currently being developed using the 2.5.8 compiler.
-The older 2.4.5 probably works too (Set option in Makefile!).
-I have no experience with any later compilers nor Elf support.
-Any information on this is welcome.
-The latest kernel I have tested ftape with is 1.2.6.
-
-Compression
------------
-An impressive collection of changes for ftape including
-on-the-fly compression is still lying on my desk.
-If 2.03 proves to be reliable I might start integrating these
-but as usual, I'm short in time :-(
-
-Formatting
-----------
-There is still no way to format tapes under Linux. As far as
-I know all attempts to write such a program have died now.
-Since formatted tapes are rather common now, I think all we
-need is a utility that writes a worst case pattern and verifies
-that with the drive put in verify mode, reducing margins.
-Any takers ?
-
-Furthermore
------------
-Cleaned up messages.
-Prepared to support multiple tape drives on one fdc.
-Thanks to all the people who sent bug reports and helped me
-improve the driver. Without trying to be complete I'll mention
-Gary Anderson (without his accurate reports and unreliable
-hardware there wouldn't be a 2.03), Stefan Kneifel (FC-20),
-Robert Broughton (FC-20, you were almost there ;-), Bjorn
-Ekwall (for the versioned modules and buggy insmod ;-), Peter
-Fox, Christopher Oliver, Ralph Whittaker and not the least
-Linus Torvalds (for Linux and keeping me busy because of
-changes to the kernel ;-)
-Thanks to anyone I forgot, for the bug reports, the ftape
-bashing and the mental support...
-
-
-That's it for now. Have Fun,
-
-Bas.
-
-
-===== Release notes for ftape-2.02g, 06/05/95 =====
-
-- Added extra test to break read-id loop with signal.
-- Changed rewind code to handle negative overshoot for drives
- that take very long to start or stop.
-- Let use of get/set i/o-regions depend on kernel version.
-- Changed code to use a more general test for conditional
- compilations depending on kernel version.
-- Improved micro-step functionality to go off-track only
- while reading (id & data).
-- Added failure on tape-not-referenced bit in ftape_command.
-- Added FOREVER option to read-wait routine.
-- Changed read-id to use shorter timeout causing smaller
- rewinds on timeout.
-- Made kernel-interface functions static.
-
-
-===== Release notes for ftape-2.02f, 03/05/95 =====
-
-- Added support for dual tape drives on my system, extended Configure
- script to detect host 'dodo'.
-- Log media defect in history if ecc failed and no data was returned.
-- Fixed Configure script that was failing for kernel versions with
- double digit version or revision numbers.
-
-
-===== Release notes for ftape-2.02e, 01/05/95 =====
-
-- Fixed reposition loop at logical eot (failing read_id).
-- Fixed 34 segment offset when rewinding.
-- Added fast seek capability for more than 255 segments.
-- Fixed wrong busy result from ftape_command causing reverse
- seek to fail.
-- Added breakout from infinite rewind loop (if something fails).
-
-
-===== Release notes for ftape-2.02d, 30/04/95 =====
-
-- Improved abortion on signals: Interrupt will make a graceful
- exit, Kill will be less nice and should be used if everything
- else fails.
-- Included check for tape-head off track.
-- Implemented exit from tape-start loop.
-- Added kernel io-port registration.
-- Implemented skip of failing segment (ENODATA) on ecc failure.
- This allows afio and tar to continue when the tape is damaged.
-- Made distinction between drive names with different codes.
-
-
-===== Release notes for ftape-2.02c, 22/04/95 =====
-
-- Fixed too tight command queueing after tape stop/pause command
- issued from within interrupt service routine (Showed as timeout
- on Acknowledge errors during retries on some systems)
-- Tried to fix timeouts when using 425 ft tape because the extended
- length doesn't seem to be detected by the hardware.
- We now use the format code from the header segment so adjust the
- timing after reading the header segment.
-- Fixed some messages stating 'unexpected something...' being not
- unexpected anymore.
-- Started preparations for merge of dynamic buffer allocation and
- compression code.
-- Changed some debug messages to include relevant segment information
- at level 4.
-- Included early bail-out when drive offline, preventing a lot of
- false messages.
-- Moved ftape_parameter_xxx() offsets into function instead of in calls.
-- Removed 'weird, drive busy but no data' error when caused by
- an error during a read-id.
-- Improved 'timeout on acknowledge' diagnostics.
-- Moved MODULE option into Configure.
-- Reduced code size when no tracing at all was set (Claus Heine).
-- No longer log error code 0 (no error) as an error.
-
-
-===== Release notes for ftape-2.02b, 09/04/95 =====
-
-- Relaxed timing for status operation and displaying
- abnormal results. Hopefully this shows what's going
- wrong with the Conner TSM850R drives.
-- Created script for configuration, using version number
- of kernel source if available, otherwise /proc/version.
-- Fixed conditionals in kernel-interface.c.
-- Removed unavoidable TRACE output.
-
-
-===== Release notes for ftape-2.02a, 01/04/95 =====
-
-- Implemented `new-style' (versioned) modules support for new
- kernels.
-- Reduced size of module by moving static data to bss.
-- Now using version number of kernel source instead of running
- kernel for kernel versions >= 1.1.82
-- Added feedback on drive speeds to vendor information.
-- Included fixed insmod sources to distribution (Let's hope
- the modules distribution get fixed soon :-/).
-
-Note that I haven't yet implemented any of the code extension I
-received. I hope to find some time to do this soon.
-
-
-===== Release notes for ftape-2.02, 15/01/95 =====
-
-
-- Fixed failing repositioning when overshoot was incremented.
-- Fixed rate selection: Because of a deficiency in the QIC-117
- specification one cannot distinguish between a not implemented
- and a failing command. Therefor we now try to find out if the
- drive does support this command before usage.
-- Fixed error retry using wrong offset in fdc-isr.
-- Improved retry code to retry only once on a single no-data
- error in a segment.
-- Validate sector number extracted from eof mark because an
- invalid file mark (due to ???) could cause kernel panic.
-- Split ftape-io.c into ftape-io.c and ftape-ctl.c files.
-- Corrected too high media error count after writing to
- a bad tape.
-- Added #include <asm/segment.h> again because old kernel versions
- need it.
-- Fixed fdc not being disabled when open failed because no tape
- drive was found.
-- Fixed problem with soft error in sector 32 (shift operator with
- shiftcount 32 is not defined).
-
-
-===== Release notes for ftape-2.01, 08/01/95 =====
-
-
-- Removed TESTING setting from distributed Makefile.
-- Fixed `mt asf' failure: Rewind was deferred to close which
- overruled the fsf ioctl.
-- Prevented non-interruptible commands being interrupted.
-- Added missing timeout.pause setting.
-- Maximum tape speed read from drive type information table.
- If the information is not in the table (0) the drive will
- determine the speed itself and put a message in the logfile.
- This information should then be added to the table in the
- vendors.h file (and reported to me).
-- Added call to ftape_init_drive after soft reset for those
- (antique) drives that don't do an implicit seek_load_point
- after a reset or power up.
-- Don't try to set data rate if reset failed.
-- Prevent update of seek variables when starting from the
- beginning or the end of the tape.
-- Fixed wrong adjustment of overshoot in seek_forward().
-- Added sync to Makefile (again).
-- Added code to diagnose timer problems (calibr.c).
-- Replaced time differences by timediff calls.
-- Removed reference to do_floppy from object for recent kernels.
-- Fixed wrong display of 'failing dma controller' message.
-- Removed various no longer used #include statements.
-- Added max. tape speed value to vendor-struct.
-- Changed ftape-command to check pre-conditions and wait
- if needed.
-- Further updated qic117.h to rev G.
-- Combined command name table and restrictions table to one.
- Extended this table with some new fields.
-- Increased timeout on Ack timer value and included code to
- report out of spec behaviour.
-- Increased rewind timeout margin to calculated + 20%.
-- Improved data rate selection so it won't fail on some
- older (pre standard) drives.
-- Changed initialisation code so drive will be rewound if the
- driver is reloaded and the tape is not at bot.
-- Moved some of the flush operations from close to the ioctls.
-- Added exit code value to failing verify area message.
-- Loop until tape halted in smart-stop.
-- Fast seek handled specially if located at bot or eot.
-- Being more conservative on overshoot value.
-
-
-===== Release notes for ftape-2.00, 31/12/94 =====
-
- The Install-guide is completely rewritten and now also includes
-some information on how to use the driver. If you're either new
-to ftape or new to Unix tape devices make sure to read it !
-
- If you own a pci system and experience problems with the
-ftape driver make sure to read the README.PCI file. It contains
-some hints on how to fix your hardware.
-
- For anybody who hasn't noticed: The version number of the
-driver has been incremented (The latest released version has
-been version 1.14d).
- This has been done for two major reasons:
-
- o A new (better) error recovery scheme is implemented.
- o Support for new drive types has been added.
-
- All these improvements/changes will probably include a couple
-of new (and old?) bugs. If you encounter any problems that you think
-I'm not yet aware of, feel free to send a report to <bas@vimec.nl>.
- I recommend keeping a version of ftape-1.14d available, just
-in case ;-)
-
- This version should work with all kernel versions from 1.0.9 up
-to 1.1.72 (and probably earlier and later versions too).
-
-
-Major new features:
-
-- Better handling of tapes with defects: When a sector repeatedly
- (SOFT_RETRIES in ftape.h) cannot be written to or read from it is
- marked as an hard error and gets skipped.
- The error correction code can handle up to three of these hard
- errors provided there are no other errors in that segment (32 Kb).
-
-- Allows writing to tapes with defects (although the risk of loosing
- data increases !)
- Look for the media-defects entry printed with the statistics when
- the tape is closed. A non-zero value here shows a bad tape.
- [the actual count is wrong (too high), this is a known bug].
-
-- Use of backup header segment if first one is failing.
-
-- Support for extended length tapes with QIC-80: both 425 and 1100 ft.
- 0.25 inch tapes are now recognized and handled.
-
-- Support for new QIC-80 drives with 8 mm `wide' tapes (e.g. Conner
- TSM 420).
-
-- Support for new QIC-3010 and QIC-3020 drives (experimental) with
- both 0.25 inch and 8 mm tapes.
-
-Some minor features were added, a couple of small bugs were fixed and
-probably some new ones introduced ;-).
-
-[lseek() didn't make it into this version]
-
-Have fun,
-
-Bas.
-----
- LocalWords: ftape MCONFIG mt VFS zftape resp sftape proc subdir MTIOCVOLINFO
- LocalWords: MTIOCGETSIZE BOT EOD MTBSF zft kerneld modprobe kdtime contrib TR
- LocalWords: MTSETBLK afio uninstall texi www EIO QIC init sft eof aka dma GB
- LocalWords: SIGKILL MTIOCFTCMD mmap Iomega FDC fdc io gnumt mtio fc asm inb
- LocalWords: outb ft qic frontend TeXinfo irq mach MODVERSIONS CONFIG html dvi
- LocalWords: usr doc SMP Mb Dunno FIXME vtblc perl listtape volinfo fsf MTWEOF
- LocalWords: amanda degaussed ComByte DoublePlay whraven njackn com MTIOC vtbl
- LocalWords: GETBLKSZ MAKEDEV zftape's linux dif CVS Revison cp MTREW MTOFFL
- LocalWords: MTFSF BSF Marcin Dalecki GCC Config cpio swapout Kai Harrekilde
- LocalWords: Pederson khp dolphinics Justus claus momo rwth aachen Laarhoven
diff --git a/drivers/char/ftape/compressor/Makefile b/drivers/char/ftape/compressor/Makefile
deleted file mode 100644
index 1fbd6c4019d..00000000000
--- a/drivers/char/ftape/compressor/Makefile
+++ /dev/null
@@ -1,31 +0,0 @@
-#
-# Copyright (C) 1997 Claus-Justus Heine.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING. If not, write to
-# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-# $Source: /homes/cvs/ftape-stacked/ftape/compressor/Makefile,v $
-# $Revision: 1.1 $
-# $Date: 1997/10/05 19:12:28 $
-#
-# Makefile for the optional compressor for th zftape VFS
-# interface to the QIC-40/80/3010/3020 floppy-tape driver for
-# Linux.
-#
-
-obj-$(CONFIG_ZFT_COMPRESSOR) += zft-compressor.o
-
-zft-compressor-objs := zftape-compress.o lzrw3.o
-
-CFLAGS_lzrw3.o := -O6 -funroll-all-loops
diff --git a/drivers/char/ftape/compressor/lzrw3.c b/drivers/char/ftape/compressor/lzrw3.c
deleted file mode 100644
index a032a0ee2a9..00000000000
--- a/drivers/char/ftape/compressor/lzrw3.c
+++ /dev/null
@@ -1,743 +0,0 @@
-/*
- * $Source: /homes/cvs/ftape-stacked/ftape/compressor/lzrw3.c,v $
- * $Revision: 1.1 $
- * $Date: 1997/10/05 19:12:29 $
- *
- * Implementation of Ross Williams lzrw3 algorithm. Adaption for zftape.
- *
- */
-
-#include "../compressor/lzrw3.h" /* Defines single exported function "compress". */
-
-/******************************************************************************/
-/* */
-/* LZRW3.C */
-/* */
-/******************************************************************************/
-/* */
-/* Author : Ross Williams. */
-/* Date : 30-Jun-1991. */
-/* Release : 1. */
-/* */
-/******************************************************************************/
-/* */
-/* This file contains an implementation of the LZRW3 data compression */
-/* algorithm in C. */
-/* */
-/* The algorithm is a general purpose compression algorithm that runs fast */
-/* and gives reasonable compression. The algorithm is a member of the Lempel */
-/* Ziv family of algorithms and bases its compression on the presence in the */
-/* data of repeated substrings. */
-/* */
-/* This algorithm is unpatented and the code is public domain. As the */
-/* algorithm is based on the LZ77 class of algorithms, it is unlikely to be */
-/* the subject of a patent challenge. */
-/* */
-/* Unlike the LZRW1 and LZRW1-A algorithms, the LZRW3 algorithm is */
-/* deterministic and is guaranteed to yield the same compressed */
-/* representation for a given file each time it is run. */
-/* */
-/* The LZRW3 algorithm was originally designed and implemented */
-/* by Ross Williams on 31-Dec-1990. */
-/* */
-/* Here are the results of applying this code, compiled under THINK C 4.0 */
-/* and running on a Mac-SE (8MHz 68000), to the standard calgary corpus. */
-/* */
-/* +----------------------------------------------------------------+ */
-/* | DATA COMPRESSION TEST | */
-/* | ===================== | */
-/* | Time of run : Sun 30-Jun-1991 09:31PM | */
-/* | Timing accuracy : One part in 100 | */
-/* | Context length : 262144 bytes (= 256.0000K) | */
-/* | Test suite : Calgary Corpus Suite | */
-/* | Files in suite : 14 | */
-/* | Algorithm : LZRW3 | */
-/* | Note: All averages are calculated from the un-rounded values. | */
-/* +----------------------------------------------------------------+ */
-/* | File Name Length CxB ComLen %Remn Bits Com K/s Dec K/s | */
-/* | ---------- ------ --- ------ ----- ---- ------- ------- | */
-/* | rpus:Bib.D 111261 1 55033 49.5 3.96 19.46 32.27 | */
-/* | us:Book1.D 768771 3 467962 60.9 4.87 17.03 31.07 | */
-/* | us:Book2.D 610856 3 317102 51.9 4.15 19.39 34.15 | */
-/* | rpus:Geo.D 102400 1 82424 80.5 6.44 11.65 18.18 | */
-/* | pus:News.D 377109 2 205670 54.5 4.36 17.14 27.47 | */
-/* | pus:Obj1.D 21504 1 13027 60.6 4.85 13.40 18.95 | */
-/* | pus:Obj2.D 246814 1 116286 47.1 3.77 19.31 30.10 | */
-/* | s:Paper1.D 53161 1 27522 51.8 4.14 18.60 31.15 | */
-/* | s:Paper2.D 82199 1 45160 54.9 4.40 18.45 32.84 | */
-/* | rpus:Pic.D 513216 2 122388 23.8 1.91 35.29 51.05 | */
-/* | us:Progc.D 39611 1 19669 49.7 3.97 18.87 30.64 | */
-/* | us:Progl.D 71646 1 28247 39.4 3.15 24.34 40.66 | */
-/* | us:Progp.D 49379 1 19377 39.2 3.14 23.91 39.23 | */
-/* | us:Trans.D 93695 1 33481 35.7 2.86 25.48 40.37 | */
-/* +----------------------------------------------------------------+ */
-/* | Average 224401 1 110953 50.0 4.00 20.17 32.72 | */
-/* +----------------------------------------------------------------+ */
-/* */
-/******************************************************************************/
-
-/******************************************************************************/
-
-/* The following structure is returned by the "compress" function below when */
-/* the user asks the function to return identifying information. */
-/* The most important field in the record is the working memory field which */
-/* tells the calling program how much working memory should be passed to */
-/* "compress" when it is called to perform a compression or decompression. */
-/* LZRW3 uses the same amount of memory during compression and decompression. */
-/* For more information on this structure see "compress.h". */
-
-#define U(X) ((ULONG) X)
-#define SIZE_P_BYTE (U(sizeof(UBYTE *)))
-#define SIZE_WORD (U(sizeof(UWORD )))
-#define ALIGNMENT_FUDGE (U(16))
-#define MEM_REQ ( U(4096)*(SIZE_P_BYTE) + ALIGNMENT_FUDGE )
-
-static struct compress_identity identity =
-{
- U(0x032DDEA8), /* Algorithm identification number. */
- MEM_REQ, /* Working memory (bytes) required. */
- "LZRW3", /* Name of algorithm. */
- "1.0", /* Version number of algorithm. */
- "31-Dec-1990", /* Date of algorithm. */
- "Public Domain", /* Copyright notice. */
- "Ross N. Williams", /* Author of algorithm. */
- "Renaissance Software", /* Affiliation of author. */
- "Public Domain" /* Vendor of algorithm. */
-};
-
-LOCAL void compress_compress (UBYTE *,UBYTE *,ULONG,UBYTE *, LONG *);
-LOCAL void compress_decompress(UBYTE *,UBYTE *,LONG, UBYTE *, ULONG *);
-
-/******************************************************************************/
-
-/* This function is the only function exported by this module. */
-/* Depending on its first parameter, the function can be requested to */
-/* compress a block of memory, decompress a block of memory, or to identify */
-/* itself. For more information, see the specification file "compress.h". */
-
-EXPORT void lzrw3_compress(
- UWORD action, /* Action to be performed. */
- UBYTE *wrk_mem, /* Address of working memory we can use.*/
- UBYTE *src_adr, /* Address of input data. */
- LONG src_len, /* Length of input data. */
- UBYTE *dst_adr, /* Address to put output data. */
- void *p_dst_len /* Address of longword for length of output data.*/
-)
-{
- switch (action)
- {
- case COMPRESS_ACTION_IDENTITY:
- *((struct compress_identity **)p_dst_len)= &identity;
- break;
- case COMPRESS_ACTION_COMPRESS:
- compress_compress(wrk_mem,src_adr,src_len,dst_adr,(LONG *)p_dst_len);
- break;
- case COMPRESS_ACTION_DECOMPRESS:
- compress_decompress(wrk_mem,src_adr,src_len,dst_adr,(LONG *)p_dst_len);
- break;
- }
-}
-
-/******************************************************************************/
-/* */
-/* BRIEF DESCRIPTION OF THE LZRW3 ALGORITHM */
-/* ======================================== */
-/* The LZRW3 algorithm is identical to the LZRW1-A algorithm except that */
-/* instead of transmitting history offsets, it transmits hash table indexes. */
-/* In order to decode the indexes, the decompressor must maintain an */
-/* identical hash table. Copy items are straightforward:when the decompressor */
-/* receives a copy item, it simply looks up the hash table to translate the */
-/* index into a pointer into the data already decompressed. To update the */
-/* hash table, it replaces the same table entry with a pointer to the start */
-/* of the newly decoded phrase. The tricky part is with literal items, for at */
-/* the time that the decompressor receives a literal item the decompressor */
-/* does not have the three bytes in the Ziv (that the compressor has) to */
-/* perform the three-byte hash. To solve this problem, in LZRW3, both the */
-/* compressor and decompressor are wired up so that they "buffer" these */
-/* literals and update their hash tables only when three bytes are available. */
-/* This makes the maximum buffering 2 bytes. */
-/* */
-/* Replacement of offsets by hash table indexes yields a few percent extra */
-/* compression at the cost of some speed. LZRW3 is slower than LZRW1, LZRW1-A */
-/* and LZRW2, but yields better compression. */
-/* */
-/* Extra compression could be obtained by using a hash table of depth two. */
-/* However, increasing the depth above one incurs a significant decrease in */
-/* compression speed which was not considered worthwhile. Another reason for */
-/* keeping the depth down to one was to allow easy comparison with the */
-/* LZRW1-A and LZRW2 algorithms so as to demonstrate the exact effect of the */
-/* use of direct hash indexes. */
-/* */
-/* +---+ */
-/* |___|4095 */
-/* |___| */
-/* +---------------------*_|<---+ /----+---\ */
-/* | |___| +---|Hash | */
-/* | |___| |Function| */
-/* | |___| \--------/ */
-/* | |___|0 ^ */
-/* | +---+ | */
-/* | Hash +-----+ */
-/* | Table | */
-/* | --- */
-/* v ^^^ */
-/* +-------------------------------------|----------------+ */
-/* |||||||||||||||||||||||||||||||||||||||||||||||||||||||| */
-/* +-------------------------------------|----------------+ */
-/* | |1......18| | */
-/* |<------- Lempel=History ------------>|<--Ziv-->| | */
-/* | (=bytes already processed) |<-Still to go-->| */
-/* |<-------------------- INPUT BLOCK ------------------->| */
-/* */
-/* The diagram above for LZRW3 looks almost identical to the diagram for */
-/* LZRW1. The difference is that in LZRW3, the compressor transmits hash */
-/* table indices instead of Lempel offsets. For this to work, the */
-/* decompressor must maintain a hash table as well as the compressor and both */
-/* compressor and decompressor must "buffer" literals, as the decompressor */
-/* cannot hash phrases commencing with a literal until another two bytes have */
-/* arrived. */
-/* */
-/* LZRW3 Algorithm Execution Summary */
-/* --------------------------------- */
-/* 1. Hash the first three bytes of the Ziv to yield a hash table index h. */
-/* 2. Look up the hash table yielding history pointer p. */
-/* 3. Match where p points with the Ziv. If there is a match of three or */
-/* more bytes, code those bytes (in the Ziv) as a copy item, otherwise */
-/* code the next byte in the Ziv as a literal item. */
-/* 4. Update the hash table as possible subject to the constraint that only */
-/* phrases commencing three bytes back from the Ziv can be hashed and */
-/* entered into the hash table. (This enables the decompressor to keep */
-/* pace). See the description and code for more details. */
-/* */
-/******************************************************************************/
-/* */
-/* DEFINITION OF COMPRESSED FILE FORMAT */
-/* ==================================== */
-/* * A compressed file consists of a COPY FLAG followed by a REMAINDER. */
-/* * The copy flag CF uses up four bytes with the first byte being the */
-/* least significant. */
-/* * If CF=1, then the compressed file represents the remainder of the file */
-/* exactly. Otherwise CF=0 and the remainder of the file consists of zero */
-/* or more GROUPS, each of which represents one or more bytes. */
-/* * Each group consists of two bytes of CONTROL information followed by */
-/* sixteen ITEMs except for the last group which can contain from one */
-/* to sixteen items. */
-/* * An item can be either a LITERAL item or a COPY item. */
-/* * Each item corresponds to a bit in the control bytes. */
-/* * The first control byte corresponds to the first 8 items in the group */
-/* with bit 0 corresponding to the first item in the group and bit 7 to */
-/* the eighth item in the group. */
-/* * The second control byte corresponds to the second 8 items in the group */
-/* with bit 0 corresponding to the ninth item in the group and bit 7 to */
-/* the sixteenth item in the group. */
-/* * A zero bit in a control word means that the corresponding item is a */
-/* literal item. A one bit corresponds to a copy item. */
-/* * A literal item consists of a single byte which represents itself. */
-/* * A copy item consists of two bytes that represent from 3 to 18 bytes. */
-/* * The first byte in a copy item will be denoted C1. */
-/* * The second byte in a copy item will be denoted C2. */
-/* * Bits will be selected using square brackets. */
-/* For example: C1[0..3] is the low nibble of the first control byte. */
-/* of copy item C1. */
-/* * The LENGTH of a copy item is defined to be C1[0..3]+3 which is a number */
-/* in the range [3,18]. */
-/* * The INDEX of a copy item is defined to be C1[4..7]*256+C2[0..8] which */
-/* is a number in the range [0,4095]. */
-/* * A copy item represents the sequence of bytes */
-/* text[POS-OFFSET..POS-OFFSET+LENGTH-1] where */
-/* text is the entire text of the uncompressed string. */
-/* POS is the index in the text of the character following the */
-/* string represented by all the items preceeding the item */
-/* being defined. */
-/* OFFSET is obtained from INDEX by looking up the hash table. */
-/* */
-/******************************************************************************/
-
-/* The following #define defines the length of the copy flag that appears at */
-/* the start of the compressed file. The value of four bytes was chosen */
-/* because the fast_copy routine on my Macintosh runs faster if the source */
-/* and destination blocks are relatively longword aligned. */
-/* The actual flag data appears in the first byte. The rest are zeroed so as */
-/* to normalize the compressed representation (i.e. not non-deterministic). */
-#define FLAG_BYTES 4
-
-/* The following #defines define the meaning of the values of the copy */
-/* flag at the start of the compressed file. */
-#define FLAG_COMPRESS 0 /* Signals that output was result of compression. */
-#define FLAG_COPY 1 /* Signals that output was simply copied over. */
-
-/* The 68000 microprocessor (on which this algorithm was originally developed */
-/* is fussy about non-aligned arrays of words. To avoid these problems the */
-/* following macro can be used to "waste" from 0 to 3 bytes so as to align */
-/* the argument pointer. */
-#define ULONG_ALIGN_UP(X) ((((ULONG)X)+sizeof(ULONG)-1)&~(sizeof(ULONG)-1))
-
-
-/* The following constant defines the maximum length of an uncompressed item. */
-/* This definition must not be changed; its value is hardwired into the code. */
-/* The longest number of bytes that can be spanned by a single item is 18 */
-/* for the longest copy item. */
-#define MAX_RAW_ITEM (18)
-
-/* The following constant defines the maximum length of an uncompressed group.*/
-/* This definition must not be changed; its value is hardwired into the code. */
-/* A group contains at most 16 items which explains this definition. */
-#define MAX_RAW_GROUP (16*MAX_RAW_ITEM)
-
-/* The following constant defines the maximum length of a compressed group. */
-/* This definition must not be changed; its value is hardwired into the code. */
-/* A compressed group consists of two control bytes followed by up to 16 */
-/* compressed items each of which can have a maximum length of two bytes. */
-#define MAX_CMP_GROUP (2+16*2)
-
-/* The following constant defines the number of entries in the hash table. */
-/* This definition must not be changed; its value is hardwired into the code. */
-#define HASH_TABLE_LENGTH (4096)
-
-/* LZRW3, unlike LZRW1(-A), must initialize its hash table so as to enable */
-/* the compressor and decompressor to stay in step maintaining identical hash */
-/* tables. In an early version of the algorithm, the tables were simply */
-/* initialized to zero and a check for zero was included just before the */
-/* matching code. However, this test costs time. A better solution is to */
-/* initialize all the entries in the hash table to point to a constant */
-/* string. The decompressor does the same. This solution requires no extra */
-/* test. The contents of the string do not matter so long as the string is */
-/* the same for the compressor and decompressor and contains at least */
-/* MAX_RAW_ITEM bytes. I chose consecutive decimal digits because they do not */
-/* have white space problems (e.g. there is no chance that the compiler will */
-/* replace more than one space by a TAB) and because they make the length of */
-/* the string obvious by inspection. */
-#define START_STRING_18 ((UBYTE *) "123456789012345678")
-
-/* In this algorithm, hash values have to be calculated at more than one */
-/* point. The following macro neatens the code up for this. */
-#define HASH(PTR) \
- (((40543*(((*(PTR))<<8)^((*((PTR)+1))<<4)^(*((PTR)+2))))>>4) & 0xFFF)
-
-/******************************************************************************/
-
-/* Input : Hand over the required amount of working memory in p_wrk_mem. */
-/* Input : Specify input block using p_src_first and src_len. */
-/* Input : Point p_dst_first to the start of the output zone (OZ). */
-/* Input : Point p_dst_len to a ULONG to receive the output length. */
-/* Input : Input block and output zone must not overlap. */
-/* Output : Length of output block written to *p_dst_len. */
-/* Output : Output block in Mem[p_dst_first..p_dst_first+*p_dst_len-1]. May */
-/* Output : write in OZ=Mem[p_dst_first..p_dst_first+src_len+MAX_CMP_GROUP-1].*/
-/* Output : Upon completion guaranteed *p_dst_len<=src_len+FLAG_BYTES. */
-LOCAL void compress_compress(UBYTE *p_wrk_mem,
- UBYTE *p_src_first, ULONG src_len,
- UBYTE *p_dst_first, LONG *p_dst_len)
-{
- /* p_src and p_dst step through the source and destination blocks. */
- register UBYTE *p_src = p_src_first;
- register UBYTE *p_dst = p_dst_first;
-
- /* The following variables are never modified and are used in the */
- /* calculations that determine when the main loop terminates. */
- UBYTE *p_src_post = p_src_first+src_len;
- UBYTE *p_dst_post = p_dst_first+src_len;
- UBYTE *p_src_max1 = p_src_first+src_len-MAX_RAW_ITEM;
- UBYTE *p_src_max16 = p_src_first+src_len-MAX_RAW_ITEM*16;
-
- /* The variables 'p_control' and 'control' are used to buffer control bits. */
- /* Before each group is processed, the next two bytes of the output block */
- /* are set aside for the control word for the group about to be processed. */
- /* 'p_control' is set to point to the first byte of that word. Meanwhile, */
- /* 'control' buffers the control bits being generated during the processing */
- /* of the group. Instead of having a counter to keep track of how many items */
- /* have been processed (=the number of bits in the control word), at the */
- /* start of each group, the top word of 'control' is filled with 1 bits. */
- /* As 'control' is shifted for each item, the 1 bits in the top word are */
- /* absorbed or destroyed. When they all run out (i.e. when the top word is */
- /* all zero bits, we know that we are at the end of a group. */
-# define TOPWORD 0xFFFF0000
- UBYTE *p_control;
- register ULONG control=TOPWORD;
-
- /* THe variable 'hash' always points to the first element of the hash table. */
- UBYTE **hash= (UBYTE **) ULONG_ALIGN_UP(p_wrk_mem);
-
- /* The following two variables represent the literal buffer. p_h1 points to */
- /* the hash table entry corresponding to the youngest literal. p_h2 points */
- /* to the hash table entry corresponding to the second youngest literal. */
- /* Note: p_h1=0=>p_h2=0 because zero values denote absence of a pending */
- /* literal. The variables are initialized to zero meaning an empty "buffer". */
- UBYTE **p_h1=NULL;
- UBYTE **p_h2=NULL;
-
- /* To start, we write the flag bytes. Being optimistic, we set the flag to */
- /* FLAG_COMPRESS. The remaining flag bytes are zeroed so as to keep the */
- /* algorithm deterministic. */
- *p_dst++=FLAG_COMPRESS;
- {UWORD i; for (i=2;i<=FLAG_BYTES;i++) *p_dst++=0;}
-
- /* Reserve the first word of output as the control word for the first group. */
- /* Note: This is undone at the end if the input block is empty. */
- p_control=p_dst; p_dst+=2;
-
- /* Initialize all elements of the hash table to point to a constant string. */
- /* Use of an unrolled loop speeds this up considerably. */
- {UWORD i; UBYTE **p_h=hash;
-# define ZH *p_h++=START_STRING_18
- for (i=0;i<256;i++) /* 256=HASH_TABLE_LENGTH/16. */
- {ZH;ZH;ZH;ZH;
- ZH;ZH;ZH;ZH;
- ZH;ZH;ZH;ZH;
- ZH;ZH;ZH;ZH;}
- }
-
- /* The main loop processes either 1 or 16 items per iteration. As its */
- /* termination logic is complicated, I have opted for an infinite loop */
- /* structure containing 'break' and 'goto' statements. */
- while (TRUE)
- {/* Begin main processing loop. */
-
- /* Note: All the variables here except unroll should be defined within */
- /* the inner loop. Unfortunately the loop hasn't got a block. */
- register UBYTE *p; /* Scans through targ phrase during matching. */
- register UBYTE *p_ziv= NULL ; /* Points to first byte of current Ziv. */
- register UWORD unroll; /* Loop counter for unrolled inner loop. */
- register UWORD index; /* Index of current hash table entry. */
- register UBYTE **p_h0 = NULL ; /* Pointer to current hash table entry. */
-
- /* Test for overrun and jump to overrun code if necessary. */
- if (p_dst>p_dst_post)
- goto overrun;
-
- /* The following cascade of if statements efficiently catches and deals */
- /* with varying degrees of closeness to the end of the input block. */
- /* When we get very close to the end, we stop updating the table and */
- /* code the remaining bytes as literals. This makes the code simpler. */
- unroll=16;
- if (p_src>p_src_max16)
- {
- unroll=1;
- if (p_src>p_src_max1)
- {
- if (p_src==p_src_post)
- break;
- else
- goto literal;
- }
- }
-
- /* This inner unrolled loop processes 'unroll' (whose value is either 1 */
- /* or 16) items. I have chosen to implement this loop with labels and */
- /* gotos to heighten the ease with which the loop may be implemented with */
- /* a single decrement and branch instruction in assembly language and */
- /* also because the labels act as highly readable place markers. */
- /* (Also because we jump into the loop for endgame literals (see above)). */
-
- begin_unrolled_loop:
-
- /* To process the next phrase, we hash the next three bytes and use */
- /* the resultant hash table index to look up the hash table. A pointer */
- /* to the entry is stored in p_h0 so as to avoid an array lookup. The */
- /* hash table entry *p_h0 is looked up yielding a pointer p to a */
- /* potential match of the Ziv in the history. */
- index=HASH(p_src);
- p_h0=&hash[index];
- p=*p_h0;
-
- /* Having looked up the candidate position, we are in a position to */
- /* attempt a match. The match loop has been unrolled using the PS */
- /* macro so that failure within the first three bytes automatically */
- /* results in the literal branch being taken. The coding is simple. */
- /* p_ziv saves p_src so we can let p_src wander. */
-# define PS *p++!=*p_src++
- p_ziv=p_src;
- if (PS || PS || PS)
- {
- /* Literal. */
-
- /* Code the literal byte as itself and a zero control bit. */
- p_src=p_ziv; literal: *p_dst++=*p_src++; control&=0xFFFEFFFF;
-
- /* We have just coded a literal. If we had two pending ones, that */
- /* makes three and we can update the hash table. */
- if (p_h2!=0)
- {*p_h2=p_ziv-2;}
-
- /* In any case, rotate the hash table pointers for next time. */
- p_h2=p_h1; p_h1=p_h0;
-
- }
- else
- {
- /* Copy */
-
- /* Match up to 15 remaining bytes using an unrolled loop and code. */
-#if 0
- PS || PS || PS || PS || PS || PS || PS || PS ||
- PS || PS || PS || PS || PS || PS || PS || p_src++;
-#else
- if (
- !( PS || PS || PS || PS || PS || PS || PS || PS ||
- PS || PS || PS || PS || PS || PS || PS )
- ) p_src++;
-#endif
- *p_dst++=((index&0xF00)>>4)|(--p_src-p_ziv-3);
- *p_dst++=index&0xFF;
-
- /* As we have just coded three bytes, we are now in a position to */
- /* update the hash table with the literal bytes that were pending */
- /* upon the arrival of extra context bytes. */
- if (p_h1!=0)
- {
- if (p_h2)
- {*p_h2=p_ziv-2; p_h2=NULL;}
- *p_h1=p_ziv-1; p_h1=NULL;
- }
-
- /* In any case, we can update the hash table based on the current */
- /* position as we just coded at least three bytes in a copy items. */
- *p_h0=p_ziv;
-
- }
- control>>=1;
-
- /* This loop is all set up for a decrement and jump instruction! */
-#ifndef linux
-` end_unrolled_loop: if (--unroll) goto begin_unrolled_loop;
-#else
- /* end_unrolled_loop: */ if (--unroll) goto begin_unrolled_loop;
-#endif
-
- /* At this point it will nearly always be the end of a group in which */
- /* case, we have to do some control-word processing. However, near the */
- /* end of the input block, the inner unrolled loop is only executed once. */
- /* This necessitates the 'if' test. */
- if ((control&TOPWORD)==0)
- {
- /* Write the control word to the place we saved for it in the output. */
- *p_control++= control &0xFF;
- *p_control = (control>>8) &0xFF;
-
- /* Reserve the next word in the output block for the control word */
- /* for the group about to be processed. */
- p_control=p_dst; p_dst+=2;
-
- /* Reset the control bits buffer. */
- control=TOPWORD;
- }
-
- } /* End main processing loop. */
-
- /* After the main processing loop has executed, all the input bytes have */
- /* been processed. However, the control word has still to be written to the */
- /* word reserved for it in the output at the start of the most recent group. */
- /* Before writing, the control word has to be shifted so that all the bits */
- /* are in the right place. The "empty" bit positions are filled with 1s */
- /* which partially fill the top word. */
- while(control&TOPWORD) control>>=1;
- *p_control++= control &0xFF;
- *p_control++=(control>>8) &0xFF;
-
- /* If the last group contained no items, delete the control word too. */
- if (p_control==p_dst) p_dst-=2;
-
- /* Write the length of the output block to the dst_len parameter and return. */
- *p_dst_len=p_dst-p_dst_first;
- return;
-
- /* Jump here as soon as an overrun is detected. An overrun is defined to */
- /* have occurred if p_dst>p_dst_first+src_len. That is, the moment the */
- /* length of the output written so far exceeds the length of the input block.*/
- /* The algorithm checks for overruns at least at the end of each group */
- /* which means that the maximum overrun is MAX_CMP_GROUP bytes. */
- /* Once an overrun occurs, the only thing to do is to set the copy flag and */
- /* copy the input over. */
- overrun:
-#if 0
- *p_dst_first=FLAG_COPY;
- fast_copy(p_src_first,p_dst_first+FLAG_BYTES,src_len);
- *p_dst_len=src_len+FLAG_BYTES;
-#else
- fast_copy(p_src_first,p_dst_first,src_len);
- *p_dst_len= -src_len; /* return a negative number to indicate uncompressed data */
-#endif
-}
-
-/******************************************************************************/
-
-/* Input : Hand over the required amount of working memory in p_wrk_mem. */
-/* Input : Specify input block using p_src_first and src_len. */
-/* Input : Point p_dst_first to the start of the output zone. */
-/* Input : Point p_dst_len to a ULONG to receive the output length. */
-/* Input : Input block and output zone must not overlap. User knows */
-/* Input : upperbound on output block length from earlier compression. */
-/* Input : In any case, maximum expansion possible is nine times. */
-/* Output : Length of output block written to *p_dst_len. */
-/* Output : Output block in Mem[p_dst_first..p_dst_first+*p_dst_len-1]. */
-/* Output : Writes only in Mem[p_dst_first..p_dst_first+*p_dst_len-1]. */
-LOCAL void compress_decompress( UBYTE *p_wrk_mem,
- UBYTE *p_src_first, LONG src_len,
- UBYTE *p_dst_first, ULONG *p_dst_len)
-{
- /* Byte pointers p_src and p_dst scan through the input and output blocks. */
- register UBYTE *p_src = p_src_first+FLAG_BYTES;
- register UBYTE *p_dst = p_dst_first;
- /* we need to avoid a SEGV when trying to uncompress corrupt data */
- register UBYTE *p_dst_post = p_dst_first + *p_dst_len;
-
- /* The following two variables are never modified and are used to control */
- /* the main loop. */
- UBYTE *p_src_post = p_src_first+src_len;
- UBYTE *p_src_max16 = p_src_first+src_len-(MAX_CMP_GROUP-2);
-
- /* The hash table is the only resident of the working memory. The hash table */
- /* contains HASH_TABLE_LENGTH=4096 pointers to positions in the history. To */
- /* keep Macintoshes happy, it is longword aligned. */
- UBYTE **hash = (UBYTE **) ULONG_ALIGN_UP(p_wrk_mem);
-
- /* The variable 'control' is used to buffer the control bits which appear in */
- /* groups of 16 bits (control words) at the start of each compressed group. */
- /* When each group is read, bit 16 of the register is set to one. Whenever */
- /* a new bit is needed, the register is shifted right. When the value of the */
- /* register becomes 1, we know that we have reached the end of a group. */
- /* Initializing the register to 1 thus instructs the code to follow that it */
- /* should read a new control word immediately. */
- register ULONG control=1;
-
- /* The value of 'literals' is always in the range 0..3. It is the number of */
- /* consecutive literal items just seen. We have to record this number so as */
- /* to know when to update the hash table. When literals gets to 3, there */
- /* have been three consecutive literals and we can update at the position of */
- /* the oldest of the three. */
- register UWORD literals=0;
-
- /* Check the leading copy flag to see if the compressor chose to use a copy */
- /* operation instead of a compression operation. If a copy operation was */
- /* used, then all we need to do is copy the data over, set the output length */
- /* and return. */
-#if 0
- if (*p_src_first==FLAG_COPY)
- {
- fast_copy(p_src_first+FLAG_BYTES,p_dst_first,src_len-FLAG_BYTES);
- *p_dst_len=src_len-FLAG_BYTES;
- return;
- }
-#else
- if ( src_len < 0 )
- {
- fast_copy(p_src_first,p_dst_first,-src_len );
- *p_dst_len = (ULONG)-src_len;
- return;
- }
-#endif
-
- /* Initialize all elements of the hash table to point to a constant string. */
- /* Use of an unrolled loop speeds this up considerably. */
- {UWORD i; UBYTE **p_h=hash;
-# define ZJ *p_h++=START_STRING_18
- for (i=0;i<256;i++) /* 256=HASH_TABLE_LENGTH/16. */
- {ZJ;ZJ;ZJ;ZJ;
- ZJ;ZJ;ZJ;ZJ;
- ZJ;ZJ;ZJ;ZJ;
- ZJ;ZJ;ZJ;ZJ;}
- }
-
- /* The outer loop processes either 1 or 16 items per iteration depending on */
- /* how close p_src is to the end of the input block. */
- while (p_src!=p_src_post)
- {/* Start of outer loop */
-
- register UWORD unroll; /* Counts unrolled loop executions. */
-
- /* When 'control' has the value 1, it means that the 16 buffered control */
- /* bits that were read in at the start of the current group have all been */
- /* shifted out and that all that is left is the 1 bit that was injected */
- /* into bit 16 at the start of the current group. When we reach the end */
- /* of a group, we have to load a new control word and inject a new 1 bit. */
- if (control==1)
- {
- control=0x10000|*p_src++;
- control|=(*p_src++)<<8;
- }
-
- /* If it is possible that we are within 16 groups from the end of the */
- /* input, execute the unrolled loop only once, else process a whole group */
- /* of 16 items by looping 16 times. */
- unroll= p_src<=p_src_max16 ? 16 : 1;
-
- /* This inner loop processes one phrase (item) per iteration. */
- while (unroll--)
- { /* Begin unrolled inner loop. */
-
- /* Process a literal or copy item depending on the next control bit. */
- if (control&1)
- {
- /* Copy item. */
-
- register UBYTE *p; /* Points to place from which to copy. */
- register UWORD lenmt; /* Length of copy item minus three. */
- register UBYTE **p_hte; /* Pointer to current hash table entry.*/
- register UBYTE *p_ziv=p_dst; /* Pointer to start of current Ziv. */
-
- /* Read and dismantle the copy word. Work out from where to copy. */
- lenmt=*p_src++;
- p_hte=&hash[((lenmt&0xF0)<<4)|*p_src++];
- p=*p_hte;
- lenmt&=0xF;
-
- /* Now perform the copy using a half unrolled loop. */
- *p_dst++=*p++;
- *p_dst++=*p++;
- *p_dst++=*p++;
- while (lenmt--)
- *p_dst++=*p++;
-
- /* Because we have just received 3 or more bytes in a copy item */
- /* (whose bytes we have just installed in the output), we are now */
- /* in a position to flush all the pending literal hashings that had */
- /* been postponed for lack of bytes. */
- if (literals>0)
- {
- register UBYTE *r=p_ziv-literals;
- hash[HASH(r)]=r;
- if (literals==2)
- {r++; hash[HASH(r)]=r;}
- literals=0;
- }
-
- /* In any case, we can immediately update the hash table with the */
- /* current position. We don't need to do a HASH(...) to work out */
- /* where to put the pointer, as the compressor just told us!!! */
- *p_hte=p_ziv;
-
- }
- else
- {
- /* Literal item. */
-
- /* Copy over the literal byte. */
- *p_dst++=*p_src++;
-
- /* If we now have three literals waiting to be hashed into the hash */
- /* table, we can do one of them now (because there are three). */
- if (++literals == 3)
- {register UBYTE *p=p_dst-3; hash[HASH(p)]=p; literals=2;}
- }
-
- /* Shift the control buffer so the next control bit is in bit 0. */
- control>>=1;
-#if 1
- if (p_dst > p_dst_post)
- {
- /* Shit: we tried to decompress corrupt data */
- *p_dst_len = 0;
- return;
- }
-#endif
- } /* End unrolled inner loop. */
-
- } /* End of outer loop */
-
- /* Write the length of the decompressed data before returning. */
- *p_dst_len=p_dst-p_dst_first;
-}
-
-/******************************************************************************/
-/* End of LZRW3.C */
-/******************************************************************************/
diff --git a/drivers/char/ftape/compressor/lzrw3.h b/drivers/char/ftape/compressor/lzrw3.h
deleted file mode 100644
index 533feba4752..00000000000
--- a/drivers/char/ftape/compressor/lzrw3.h
+++ /dev/null
@@ -1,253 +0,0 @@
-#ifndef _LZRW3_H
-#define _LZRW3_H
-/*
- * $Source: /homes/cvs/ftape-stacked/ftape/compressor/lzrw3.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/10/05 19:12:30 $
- *
- * include files for lzrw3. Only slighty modified from the original
- * version. Assembles the three include files compress.h, port.h and
- * fastcopy.h from the original lzrw3 package.
- *
- */
-
-#include <linux/types.h>
-#include <linux/string.h>
-
-/******************************************************************************/
-/* */
-/* COMPRESS.H */
-/* */
-/******************************************************************************/
-/* */
-/* Author : Ross Williams. */
-/* Date : December 1989. */
-/* */
-/* This header file defines the interface to a set of functions called */
-/* 'compress', each member of which implements a particular data compression */
-/* algorithm. */
-/* */
-/* Normally in C programming, for each .H file, there is a corresponding .C */
-/* file that implements the functions promised in the .H file. */
-/* Here, there are many .C files corresponding to this header file. */
-/* Each comforming implementation file contains a single function */
-/* called 'compress' that implements a single data compression */
-/* algorithm that conforms with the interface specified in this header file. */
-/* Only one algorithm can be linked in at a time in this organization. */
-/* */
-/******************************************************************************/
-/* */
-/* DEFINITION OF FUNCTION COMPRESS */
-/* =============================== */
-/* */
-/* Summary of Function Compress */
-/* ---------------------------- */
-/* The action that 'compress' takes depends on its first argument called */
-/* 'action'. The function provides three actions: */
-/* */
-/* - Return information about the algorithm. */
-/* - Compress a block of memory. */
-/* - Decompress a block of memory. */
-/* */
-/* Parameters */
-/* ---------- */
-/* See the formal C definition later for a description of the parameters. */
-/* */
-/* Constants */
-/* --------- */
-/* COMPRESS_OVERRUN: The constant COMPRESS_OVERRUN defines by how many bytes */
-/* an algorithm is allowed to expand a block during a compression operation. */
-/* */
-/* Although compression algorithms usually compress data, there will always */
-/* be data that a given compressor will expand (this can be proven). */
-/* Fortunately, the degree of expansion can be limited to a single bit, by */
-/* copying over the input data if the data gets bigger during compression. */
-/* To allow for this possibility, the first bit of a compressed */
-/* representation can be used as a flag indicating whether the */
-/* input data was copied over, or truly compressed. In practice, the first */
-/* byte would be used to store this bit so as to maintain byte alignment. */
-/* */
-/* Unfortunately, in general, the only way to tell if an algorithm will */
-/* expand a particular block of data is to run the algorithm on the data. */
-/* If the algorithm does not continuously monitor how many output bytes it */
-/* has written, it might write an output block far larger than the input */
-/* block before realizing that it has done so. */
-/* On the other hand, continuous checks on output length are inefficient. */
-/* */
-/* To cater for all these problems, this interface definition: */
-/* > Allows a compression algorithm to return an output block that is up to */
-/* COMPRESS_OVERRUN bytes longer than the input block. */
-/* > Allows a compression algorithm to write up to COMPRESS_OVERRUN bytes */
-/* more than the length of the input block to the memory of the output */
-/* block regardless of the length of the output block eventually returned. */
-/* This allows an algorithm to overrun the length of the input block in the */
-/* output block by up to COMPRESS_OVERRUN bytes between expansion checks. */
-/* */
-/* The problem does not arise for decompression. */
-/* */
-/* Identity Action */
-/* --------------- */
-/* > action must be COMPRESS_ACTION_IDENTITY. */
-/* > p_dst_len must point to a longword to receive a longword address. */
-/* > The value of the other parameters does not matter. */
-/* > After execution, the longword that p_dst_len points to will be a pointer */
-/* to a structure of type compress_identity. */
-/* Thus, for example, after the call, (*p_dst_len)->memory will return the */
-/* number of bytes of working memory that the algorithm requires to run. */
-/* > The values of the identity structure returned are fixed constant */
-/* attributes of the algorithm and must not vary from call to call. */
-/* */
-/* Common Requirements for Compression and Decompression Actions */
-/* ------------------------------------------------------------- */
-/* > wrk_mem must point to an unused block of memory of a length specified in */
-/* the algorithm's identity block. The identity block can be obtained by */
-/* making a separate call to compress, specifying the identity action. */
-/* > The INPUT BLOCK is defined to be Memory[src_addr,src_addr+src_len-1]. */
-/* > dst_len will be used to denote *p_dst_len. */
-/* > dst_len is not read by compress, only written. */
-/* > The value of dst_len is defined only upon termination. */
-/* > The OUTPUT BLOCK is defined to be Memory[dst_addr,dst_addr+dst_len-1]. */
-/* */
-/* Compression Action */
-/* ------------------ */
-/* > action must be COMPRESS_ACTION_COMPRESS. */
-/* > src_len must be in the range [0,COMPRESS_MAX_ORG]. */
-/* > The OUTPUT ZONE is defined to be */
-/* Memory[dst_addr,dst_addr+src_len-1+COMPRESS_OVERRUN]. */
-/* > The function can modify any part of the output zone regardless of the */
-/* final length of the output block. */
-/* > The input block and the output zone must not overlap. */
-/* > dst_len will be in the range [0,src_len+COMPRESS_OVERRUN]. */
-/* > dst_len will be in the range [0,COMPRESS_MAX_COM] (from prev fact). */
-/* > The output block will consist of a representation of the input block. */
-/* */
-/* Decompression Action */
-/* -------------------- */
-/* > action must be COMPRESS_ACTION_DECOMPRESS. */
-/* > The input block must be the result of an earlier compression operation. */
-/* > If the previous fact is true, the following facts must also be true: */
-/* > src_len will be in the range [0,COMPRESS_MAX_COM]. */
-/* > dst_len will be in the range [0,COMPRESS_MAX_ORG]. */
-/* > The input and output blocks must not overlap. */
-/* > Only the output block is modified. */
-/* > Upon termination, the output block will consist of the bytes contained */
-/* in the input block passed to the earlier compression operation. */
-/* */
-/******************************************************************************/
-
-/******************************************************************************/
-/* */
-/* PORT.H */
-/* */
-/******************************************************************************/
-/* */
-/* This module contains macro definitions and types that are likely to */
-/* change between computers. */
-/* */
-/******************************************************************************/
-
-#ifndef DONE_PORT /* Only do this if not previously done. */
-
- #ifdef THINK_C
- #define UBYTE unsigned char /* Unsigned byte */
- #define UWORD unsigned int /* Unsigned word (2 bytes) */
- #define ULONG unsigned long /* Unsigned word (4 bytes) */
- #define BOOL unsigned char /* Boolean */
- #define FOPEN_BINARY_READ "rb" /* Mode string for binary reading. */
- #define FOPEN_BINARY_WRITE "wb" /* Mode string for binary writing. */
- #define FOPEN_TEXT_APPEND "a" /* Mode string for text appending. */
- #define REAL double /* USed for floating point stuff. */
- #endif
- #if defined(LINUX) || defined(linux)
- #define UBYTE __u8 /* Unsigned byte */
- #define UWORD __u16 /* Unsigned word (2 bytes) */
- #define ULONG __u32 /* Unsigned word (4 bytes) */
- #define LONG __s32 /* Signed word (4 bytes) */
- #define BOOL is not used here /* Boolean */
- #define FOPEN_BINARY_READ not used /* Mode string for binary reading. */
- #define FOPEN_BINARY_WRITE not used /* Mode string for binary writing. */
- #define FOPEN_TEXT_APPEND not used /* Mode string for text appending. */
- #define REAL not used /* USed for floating point stuff. */
- #ifndef TRUE
- #define TRUE 1
- #endif
- #endif
-
- #define DONE_PORT /* Don't do all this again. */
- #define MALLOC_FAIL NULL /* Failure status from malloc() */
- #define LOCAL static /* For non-exported routines. */
- #define EXPORT /* Signals exported function. */
- #define then /* Useful for aligning ifs. */
-
-#endif
-
-/******************************************************************************/
-/* End of PORT.H */
-/******************************************************************************/
-
-#define COMPRESS_ACTION_IDENTITY 0
-#define COMPRESS_ACTION_COMPRESS 1
-#define COMPRESS_ACTION_DECOMPRESS 2
-
-#define COMPRESS_OVERRUN 1024
-#define COMPRESS_MAX_COM 0x70000000
-#define COMPRESS_MAX_ORG (COMPRESS_MAX_COM-COMPRESS_OVERRUN)
-
-#define COMPRESS_MAX_STRLEN 255
-
-/* The following structure provides information about the algorithm. */
-/* > The top bit of id must be zero. The remaining bits must be chosen by */
-/* the author of the algorithm by tossing a coin 31 times. */
-/* > The amount of memory requested by the algorithm is specified in bytes */
-/* and must be in the range [0,0x70000000]. */
-/* > All strings s must be such that strlen(s)<=COMPRESS_MAX_STRLEN. */
-struct compress_identity
- {
- ULONG id; /* Identifying number of algorithm. */
- ULONG memory; /* Number of bytes of working memory required. */
-
- char *name; /* Name of algorithm. */
- char *version; /* Version number. */
- char *date; /* Date of release of this version. */
- char *copyright; /* Copyright message. */
-
- char *author; /* Author of algorithm. */
- char *affiliation; /* Affiliation of author. */
- char *vendor; /* Where the algorithm can be obtained. */
- };
-
-void lzrw3_compress( /* Single function interface to compression algorithm. */
-UWORD action, /* Action to be performed. */
-UBYTE *wrk_mem, /* Working memory temporarily given to routine to use. */
-UBYTE *src_adr, /* Address of input data. */
-LONG src_len, /* Length of input data. */
-UBYTE *dst_adr, /* Address of output data. */
-void *p_dst_len /* Pointer to a longword where routine will write: */
- /* If action=..IDENTITY => Adr of id structure. */
- /* If action=..COMPRESS => Length of output data. */
- /* If action=..DECOMPRESS => Length of output data. */
-);
-
-/******************************************************************************/
-/* End of COMPRESS.H */
-/******************************************************************************/
-
-
-/******************************************************************************/
-/* fast_copy.h */
-/******************************************************************************/
-
-/* This function copies a block of memory very quickly. */
-/* The exact speed depends on the relative alignment of the blocks of memory. */
-/* PRE : 0<=src_len<=(2^32)-1 . */
-/* PRE : Source and destination blocks must not overlap. */
-/* POST : MEM[dst_adr,dst_adr+src_len-1]=MEM[src_adr,src_adr+src_len-1]. */
-/* POST : MEM[dst_adr,dst_adr+src_len-1] is the only memory changed. */
-
-#define fast_copy(src,dst,len) memcpy(dst,src,len)
-
-/******************************************************************************/
-/* End of fast_copy.h */
-/******************************************************************************/
-
-#endif
diff --git a/drivers/char/ftape/compressor/zftape-compress.c b/drivers/char/ftape/compressor/zftape-compress.c
deleted file mode 100644
index 65ffc0be3df..00000000000
--- a/drivers/char/ftape/compressor/zftape-compress.c
+++ /dev/null
@@ -1,1203 +0,0 @@
-/*
- * Copyright (C) 1994-1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
- USA.
-
- *
- * This file implements a "generic" interface between the *
- * zftape-driver and a compression-algorithm. The *
- * compression-algorithm currently used is a LZ77. I use the *
- * implementation lzrw3 by Ross N. Williams (Renaissance *
- * Software). The compression program itself is in the file
- * lzrw3.c * and lzrw3.h. To adopt another compression algorithm
- * the functions * zft_compress() and zft_uncompress() must be
- * changed * appropriately. See below.
- */
-
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-
-#include <linux/zftape.h>
-
-#include <asm/uaccess.h>
-
-#include "../zftape/zftape-init.h"
-#include "../zftape/zftape-eof.h"
-#include "../zftape/zftape-ctl.h"
-#include "../zftape/zftape-write.h"
-#include "../zftape/zftape-read.h"
-#include "../zftape/zftape-rw.h"
-#include "../compressor/zftape-compress.h"
-#include "../zftape/zftape-vtbl.h"
-#include "../compressor/lzrw3.h"
-
-/*
- * global variables
- */
-
-/* I handle the allocation of this buffer as a special case, because
- * it's size varies depending on the tape length inserted.
- */
-
-/* local variables
- */
-static void *zftc_wrk_mem = NULL;
-static __u8 *zftc_buf = NULL;
-static void *zftc_scratch_buf = NULL;
-
-/* compression statistics
- */
-static unsigned int zftc_wr_uncompressed = 0;
-static unsigned int zftc_wr_compressed = 0;
-static unsigned int zftc_rd_uncompressed = 0;
-static unsigned int zftc_rd_compressed = 0;
-
-/* forward */
-static int zftc_write(int *write_cnt,
- __u8 *dst_buf, const int seg_sz,
- const __u8 __user *src_buf, const int req_len,
- const zft_position *pos, const zft_volinfo *volume);
-static int zftc_read(int *read_cnt,
- __u8 __user *dst_buf, const int to_do,
- const __u8 *src_buf, const int seg_sz,
- const zft_position *pos, const zft_volinfo *volume);
-static int zftc_seek(unsigned int new_block_pos,
- zft_position *pos, const zft_volinfo *volume,
- __u8 *buffer);
-static void zftc_lock (void);
-static void zftc_reset (void);
-static void zftc_cleanup(void);
-static void zftc_stats (void);
-
-/* compressed segment. This conforms to QIC-80-MC, Revision K.
- *
- * Rev. K applies to tapes with `fixed length format' which is
- * indicated by format code 2,3 and 5. See below for format code 4 and 6
- *
- * 2 bytes: offset of compression segment structure
- * 29k > offset >= 29k-18: data from previous segment ens in this
- * segment and no compressed block starts
- * in this segment
- * offset == 0: data from previous segment occupies entire
- * segment and continues in next segment
- * n bytes: remainder from previous segment
- *
- * Rev. K:
- * 4 bytes: 4 bytes: files set byte offset
- * Post Rev. K and QIC-3020/3020:
- * 8 bytes: 8 bytes: files set byte offset
- * 2 bytes: byte count N (amount of data following)
- * bit 15 is set if data is compressed, bit 15 is not
- * set if data is uncompressed
- * N bytes: data (as much as specified in the byte count)
- * 2 bytes: byte count N_1 of next cluster
- * N_1 bytes: data of next cluset
- * 2 bytes: byte count N_2 of next cluster
- * N_2 bytes: ...
- *
- * Note that the `N' byte count accounts only for the bytes that in the
- * current segment if the cluster spans to the next segment.
- */
-
-typedef struct
-{
- int cmpr_pos; /* actual position in compression buffer */
- int cmpr_sz; /* what is left in the compression buffer
- * when copying the compressed data to the
- * deblock buffer
- */
- unsigned int first_block; /* location of header information in
- * this segment
- */
- unsigned int count; /* amount of data of current block
- * contained in current segment
- */
- unsigned int offset; /* offset in current segment */
- unsigned int spans:1; /* might continue in next segment */
- unsigned int uncmpr; /* 0x8000 if this block contains
- * uncompressed data
- */
- __s64 foffs; /* file set byte offset, same as in
- * compression map segment
- */
-} cmpr_info;
-
-static cmpr_info cseg; /* static data. Must be kept uptodate and shared by
- * read, write and seek functions
- */
-
-#define DUMP_CMPR_INFO(level, msg, info) \
- TRACE(level, msg "\n" \
- KERN_INFO "cmpr_pos : %d\n" \
- KERN_INFO "cmpr_sz : %d\n" \
- KERN_INFO "first_block: %d\n" \
- KERN_INFO "count : %d\n" \
- KERN_INFO "offset : %d\n" \
- KERN_INFO "spans : %d\n" \
- KERN_INFO "uncmpr : 0x%04x\n" \
- KERN_INFO "foffs : " LL_X, \
- (info)->cmpr_pos, (info)->cmpr_sz, (info)->first_block, \
- (info)->count, (info)->offset, (info)->spans == 1, \
- (info)->uncmpr, LL((info)->foffs))
-
-/* dispatch compression segment info, return error code
- *
- * afterwards, cseg->offset points to start of data of the NEXT
- * compressed block, and cseg->count contains the amount of data
- * left in the actual compressed block. cseg->spans is set to 1 if
- * the block is continued in the following segment. Otherwise it is
- * set to 0.
- */
-static int get_cseg (cmpr_info *cinfo, const __u8 *buff,
- const unsigned int seg_sz,
- const zft_volinfo *volume)
-{
- TRACE_FUN(ft_t_flow);
-
- cinfo->first_block = GET2(buff, 0);
- if (cinfo->first_block == 0) { /* data spans to next segment */
- cinfo->count = seg_sz - sizeof(__u16);
- cinfo->offset = seg_sz;
- cinfo->spans = 1;
- } else { /* cluster definetely ends in this segment */
- if (cinfo->first_block > seg_sz) {
- /* data corrupted */
- TRACE_ABORT(-EIO, ft_t_err, "corrupted data:\n"
- KERN_INFO "segment size: %d\n"
- KERN_INFO "first block : %d",
- seg_sz, cinfo->first_block);
- }
- cinfo->count = cinfo->first_block - sizeof(__u16);
- cinfo->offset = cinfo->first_block;
- cinfo->spans = 0;
- }
- /* now get the offset the first block should have in the
- * uncompressed data stream.
- *
- * For this magic `18' refer to CRF-3 standard or QIC-80MC,
- * Rev. K.
- */
- if ((seg_sz - cinfo->offset) > 18) {
- if (volume->qic113) { /* > revision K */
- TRACE(ft_t_data_flow, "New QIC-113 compliance");
- cinfo->foffs = GET8(buff, cinfo->offset);
- cinfo->offset += sizeof(__s64);
- } else {
- TRACE(/* ft_t_data_flow */ ft_t_noise, "pre QIC-113 version");
- cinfo->foffs = (__s64)GET4(buff, cinfo->offset);
- cinfo->offset += sizeof(__u32);
- }
- }
- if (cinfo->foffs > volume->size) {
- TRACE_ABORT(-EIO, ft_t_err, "Inconsistency:\n"
- KERN_INFO "offset in current volume: %d\n"
- KERN_INFO "size of current volume : %d",
- (int)(cinfo->foffs>>10), (int)(volume->size>>10));
- }
- if (cinfo->cmpr_pos + cinfo->count > volume->blk_sz) {
- TRACE_ABORT(-EIO, ft_t_err, "Inconsistency:\n"
- KERN_INFO "block size : %d\n"
- KERN_INFO "data record: %d",
- volume->blk_sz, cinfo->cmpr_pos + cinfo->count);
- }
- DUMP_CMPR_INFO(ft_t_noise /* ft_t_any */, "", cinfo);
- TRACE_EXIT 0;
-}
-
-/* This one is called, when a new cluster starts in same segment.
- *
- * Note: if this is the first cluster in the current segment, we must
- * not check whether there are more than 18 bytes available because
- * this have already been done in get_cseg() and there may be less
- * than 18 bytes available due to header information.
- *
- */
-static void get_next_cluster(cmpr_info *cluster, const __u8 *buff,
- const int seg_sz, const int finish)
-{
- TRACE_FUN(ft_t_flow);
-
- if (seg_sz - cluster->offset > 18 || cluster->foffs != 0) {
- cluster->count = GET2(buff, cluster->offset);
- cluster->uncmpr = cluster->count & 0x8000;
- cluster->count -= cluster->uncmpr;
- cluster->offset += sizeof(__u16);
- cluster->foffs = 0;
- if ((cluster->offset + cluster->count) < seg_sz) {
- cluster->spans = 0;
- } else if (cluster->offset + cluster->count == seg_sz) {
- cluster->spans = !finish;
- } else {
- /* either an error or a volume written by an
- * old version. If this is a data error, then we'll
- * catch it later.
- */
- TRACE(ft_t_data_flow, "Either error or old volume");
- cluster->spans = 1;
- cluster->count = seg_sz - cluster->offset;
- }
- } else {
- cluster->count = 0;
- cluster->spans = 0;
- cluster->foffs = 0;
- }
- DUMP_CMPR_INFO(ft_t_noise /* ft_t_any */ , "", cluster);
- TRACE_EXIT;
-}
-
-static void zftc_lock(void)
-{
-}
-
-/* this function is needed for zftape_reset_position in zftape-io.c
- */
-static void zftc_reset(void)
-{
- TRACE_FUN(ft_t_flow);
-
- memset((void *)&cseg, '\0', sizeof(cseg));
- zftc_stats();
- TRACE_EXIT;
-}
-
-static int cmpr_mem_initialized = 0;
-static unsigned int alloc_blksz = 0;
-
-static int zft_allocate_cmpr_mem(unsigned int blksz)
-{
- TRACE_FUN(ft_t_flow);
-
- if (cmpr_mem_initialized && blksz == alloc_blksz) {
- TRACE_EXIT 0;
- }
- TRACE_CATCH(zft_vmalloc_once(&zftc_wrk_mem, CMPR_WRK_MEM_SIZE),
- zftc_cleanup());
- TRACE_CATCH(zft_vmalloc_always(&zftc_buf, blksz + CMPR_OVERRUN),
- zftc_cleanup());
- alloc_blksz = blksz;
- TRACE_CATCH(zft_vmalloc_always(&zftc_scratch_buf, blksz+CMPR_OVERRUN),
- zftc_cleanup());
- cmpr_mem_initialized = 1;
- TRACE_EXIT 0;
-}
-
-static void zftc_cleanup(void)
-{
- TRACE_FUN(ft_t_flow);
-
- zft_vfree(&zftc_wrk_mem, CMPR_WRK_MEM_SIZE);
- zft_vfree(&zftc_buf, alloc_blksz + CMPR_OVERRUN);
- zft_vfree(&zftc_scratch_buf, alloc_blksz + CMPR_OVERRUN);
- cmpr_mem_initialized = alloc_blksz = 0;
- TRACE_EXIT;
-}
-
-/*****************************************************************************
- * *
- * The following two functions "ftape_compress()" and *
- * "ftape_uncompress()" are the interface to the actual compression *
- * algorithm (i.e. they are calling the "compress()" function from *
- * the lzrw3 package for now). These routines could quite easily be *
- * changed to adopt another compression algorithm instead of lzrw3, *
- * which currently is used. *
- * *
- *****************************************************************************/
-
-/* called by zft_compress_write() to perform the compression. Must
- * return the size of the compressed data.
- *
- * NOTE: The size of the compressed data should not exceed the size of
- * the uncompressed data. Most compression algorithms have means
- * to store data unchanged if the "compressed" data amount would
- * exceed the original one. Mostly this is done by storing some
- * flag-bytes in front of the compressed data to indicate if it
- * is compressed or not. Thus the worst compression result
- * length is the original length plus those flag-bytes.
- *
- * We don't want that, as the QIC-80 standard provides a means
- * of marking uncompressed blocks by simply setting bit 15 of
- * the compressed block's length. Thus a compessed block can
- * have at most a length of 2^15-1 bytes. The QIC-80 standard
- * restricts the block-length even further, allowing only 29k -
- * 6 bytes.
- *
- * Currently, the maximum blocksize used by zftape is 28k.
- *
- * In short: don't exceed the length of the input-package, set
- * bit 15 of the compressed size to 1 if you have copied data
- * instead of compressing it.
- */
-static int zft_compress(__u8 *in_buffer, unsigned int in_sz, __u8 *out_buffer)
-{
- __s32 compressed_sz;
- TRACE_FUN(ft_t_flow);
-
-
- lzrw3_compress(COMPRESS_ACTION_COMPRESS, zftc_wrk_mem,
- in_buffer, in_sz, out_buffer, &compressed_sz);
- if (TRACE_LEVEL >= ft_t_info) {
- /* the compiler will optimize this away when
- * compiled with NO_TRACE_AT_ALL option
- */
- TRACE(ft_t_data_flow, "\n"
- KERN_INFO "before compression: %d bytes\n"
- KERN_INFO "after compresison : %d bytes",
- in_sz,
- (int)(compressed_sz < 0
- ? -compressed_sz : compressed_sz));
- /* for statistical purposes
- */
- zftc_wr_compressed += (compressed_sz < 0
- ? -compressed_sz : compressed_sz);
- zftc_wr_uncompressed += in_sz;
- }
- TRACE_EXIT (int)compressed_sz;
-}
-
-/* called by zft_compress_read() to decompress the data. Must
- * return the size of the decompressed data for sanity checks
- * (compared with zft_blk_sz)
- *
- * NOTE: Read the note for zft_compress() above! If bit 15 of the
- * parameter in_sz is set, then the data in in_buffer isn't
- * compressed, which must be handled by the un-compression
- * algorithm. (I changed lzrw3 to handle this.)
- *
- * The parameter max_out_sz is needed to prevent buffer overruns when
- * uncompressing corrupt data.
- */
-static unsigned int zft_uncompress(__u8 *in_buffer,
- int in_sz,
- __u8 *out_buffer,
- unsigned int max_out_sz)
-{
- TRACE_FUN(ft_t_flow);
-
- lzrw3_compress(COMPRESS_ACTION_DECOMPRESS, zftc_wrk_mem,
- in_buffer, (__s32)in_sz,
- out_buffer, (__u32 *)&max_out_sz);
-
- if (TRACE_LEVEL >= ft_t_info) {
- TRACE(ft_t_data_flow, "\n"
- KERN_INFO "before decompression: %d bytes\n"
- KERN_INFO "after decompression : %d bytes",
- in_sz < 0 ? -in_sz : in_sz,(int)max_out_sz);
- /* for statistical purposes
- */
- zftc_rd_compressed += in_sz < 0 ? -in_sz : in_sz;
- zftc_rd_uncompressed += max_out_sz;
- }
- TRACE_EXIT (unsigned int)max_out_sz;
-}
-
-/* print some statistics about the efficiency of the compression to
- * the kernel log
- */
-static void zftc_stats(void)
-{
- TRACE_FUN(ft_t_flow);
-
- if (TRACE_LEVEL < ft_t_info) {
- TRACE_EXIT;
- }
- if (zftc_wr_uncompressed != 0) {
- if (zftc_wr_compressed > (1<<14)) {
- TRACE(ft_t_info, "compression statistics (writing):\n"
- KERN_INFO " compr./uncmpr. : %3d %%",
- (((zftc_wr_compressed>>10) * 100)
- / (zftc_wr_uncompressed>>10)));
- } else {
- TRACE(ft_t_info, "compression statistics (writing):\n"
- KERN_INFO " compr./uncmpr. : %3d %%",
- ((zftc_wr_compressed * 100)
- / zftc_wr_uncompressed));
- }
- }
- if (zftc_rd_uncompressed != 0) {
- if (zftc_rd_compressed > (1<<14)) {
- TRACE(ft_t_info, "compression statistics (reading):\n"
- KERN_INFO " compr./uncmpr. : %3d %%",
- (((zftc_rd_compressed>>10) * 100)
- / (zftc_rd_uncompressed>>10)));
- } else {
- TRACE(ft_t_info, "compression statistics (reading):\n"
- KERN_INFO " compr./uncmpr. : %3d %%",
- ((zftc_rd_compressed * 100)
- / zftc_rd_uncompressed));
- }
- }
- /* only print it once: */
- zftc_wr_uncompressed =
- zftc_wr_compressed =
- zftc_rd_uncompressed =
- zftc_rd_compressed = 0;
- TRACE_EXIT;
-}
-
-/* start new compressed block
- */
-static int start_new_cseg(cmpr_info *cluster,
- char *dst_buf,
- const zft_position *pos,
- const unsigned int blk_sz,
- const char *src_buf,
- const int this_segs_sz,
- const int qic113)
-{
- int size_left;
- int cp_cnt;
- int buf_pos;
- TRACE_FUN(ft_t_flow);
-
- size_left = this_segs_sz - sizeof(__u16) - cluster->cmpr_sz;
- TRACE(ft_t_data_flow,"\n"
- KERN_INFO "segment size : %d\n"
- KERN_INFO "compressed_sz: %d\n"
- KERN_INFO "size_left : %d",
- this_segs_sz, cluster->cmpr_sz, size_left);
- if (size_left > 18) { /* start a new cluseter */
- cp_cnt = cluster->cmpr_sz;
- cluster->cmpr_sz = 0;
- buf_pos = cp_cnt + sizeof(__u16);
- PUT2(dst_buf, 0, buf_pos);
-
- if (qic113) {
- __s64 foffs = pos->volume_pos;
- if (cp_cnt) foffs += (__s64)blk_sz;
-
- TRACE(ft_t_data_flow, "new style QIC-113 header");
- PUT8(dst_buf, buf_pos, foffs);
- buf_pos += sizeof(__s64);
- } else {
- __u32 foffs = (__u32)pos->volume_pos;
- if (cp_cnt) foffs += (__u32)blk_sz;
-
- TRACE(ft_t_data_flow, "old style QIC-80MC header");
- PUT4(dst_buf, buf_pos, foffs);
- buf_pos += sizeof(__u32);
- }
- } else if (size_left >= 0) {
- cp_cnt = cluster->cmpr_sz;
- cluster->cmpr_sz = 0;
- buf_pos = cp_cnt + sizeof(__u16);
- PUT2(dst_buf, 0, buf_pos);
- /* zero unused part of segment. */
- memset(dst_buf + buf_pos, '\0', size_left);
- buf_pos = this_segs_sz;
- } else { /* need entire segment and more space */
- PUT2(dst_buf, 0, 0);
- cp_cnt = this_segs_sz - sizeof(__u16);
- cluster->cmpr_sz -= cp_cnt;
- buf_pos = this_segs_sz;
- }
- memcpy(dst_buf + sizeof(__u16), src_buf + cluster->cmpr_pos, cp_cnt);
- cluster->cmpr_pos += cp_cnt;
- TRACE_EXIT buf_pos;
-}
-
-/* return-value: the number of bytes removed from the user-buffer
- * `src_buf' or error code
- *
- * int *write_cnt : how much actually has been moved to the
- * dst_buf. Need not be initialized when
- * function returns with an error code
- * (negativ return value)
- * __u8 *dst_buf : kernel space buffer where the has to be
- * copied to. The contents of this buffers
- * goes to a specific segment.
- * const int seg_sz : the size of the segment dst_buf will be
- * copied to.
- * const zft_position *pos : struct containing the coordinates in
- * the current volume (byte position,
- * segment id of current segment etc)
- * const zft_volinfo *volume: information about the current volume,
- * size etc.
- * const __u8 *src_buf : user space buffer that contains the
- * data the user wants to be written to
- * tape.
- * const int req_len : the amount of data the user wants to be
- * written to tape.
- */
-static int zftc_write(int *write_cnt,
- __u8 *dst_buf, const int seg_sz,
- const __u8 __user *src_buf, const int req_len,
- const zft_position *pos, const zft_volinfo *volume)
-{
- int req_len_left = req_len;
- int result;
- int len_left;
- int buf_pos_write = pos->seg_byte_pos;
- TRACE_FUN(ft_t_flow);
-
- /* Note: we do not unlock the module because
- * there are some values cached in that `cseg' variable. We
- * don't don't want to use this information when being
- * unloaded by kerneld even when the tape is full or when we
- * cannot allocate enough memory.
- */
- if (pos->tape_pos > (volume->size-volume->blk_sz-ZFT_CMPR_OVERHEAD)) {
- TRACE_EXIT -ENOSPC;
- }
- if (zft_allocate_cmpr_mem(volume->blk_sz) < 0) {
- /* should we unlock the module? But it shouldn't
- * be locked anyway ...
- */
- TRACE_EXIT -ENOMEM;
- }
- if (buf_pos_write == 0) { /* fill a new segment */
- *write_cnt = buf_pos_write = start_new_cseg(&cseg,
- dst_buf,
- pos,
- volume->blk_sz,
- zftc_buf,
- seg_sz,
- volume->qic113);
- if (cseg.cmpr_sz == 0 && cseg.cmpr_pos != 0) {
- req_len_left -= result = volume->blk_sz;
- cseg.cmpr_pos = 0;
- } else {
- result = 0;
- }
- } else {
- *write_cnt = result = 0;
- }
-
- len_left = seg_sz - buf_pos_write;
- while ((req_len_left > 0) && (len_left > 18)) {
- /* now we have some size left for a new compressed
- * block. We know, that the compression buffer is
- * empty (else there wouldn't be any space left).
- */
- if (copy_from_user(zftc_scratch_buf, src_buf + result,
- volume->blk_sz) != 0) {
- TRACE_EXIT -EFAULT;
- }
- req_len_left -= volume->blk_sz;
- cseg.cmpr_sz = zft_compress(zftc_scratch_buf, volume->blk_sz,
- zftc_buf);
- if (cseg.cmpr_sz < 0) {
- cseg.uncmpr = 0x8000;
- cseg.cmpr_sz = -cseg.cmpr_sz;
- } else {
- cseg.uncmpr = 0;
- }
- /* increment "result" iff we copied the entire
- * compressed block to the zft_deblock_buf
- */
- len_left -= sizeof(__u16);
- if (len_left >= cseg.cmpr_sz) {
- len_left -= cseg.count = cseg.cmpr_sz;
- cseg.cmpr_pos = cseg.cmpr_sz = 0;
- result += volume->blk_sz;
- } else {
- cseg.cmpr_sz -=
- cseg.cmpr_pos =
- cseg.count = len_left;
- len_left = 0;
- }
- PUT2(dst_buf, buf_pos_write, cseg.uncmpr | cseg.count);
- buf_pos_write += sizeof(__u16);
- memcpy(dst_buf + buf_pos_write, zftc_buf, cseg.count);
- buf_pos_write += cseg.count;
- *write_cnt += cseg.count + sizeof(__u16);
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- }
- /* erase the remainder of the segment if less than 18 bytes
- * left (18 bytes is due to the QIC-80 standard)
- */
- if (len_left <= 18) {
- memset(dst_buf + buf_pos_write, '\0', len_left);
- (*write_cnt) += len_left;
- }
- TRACE(ft_t_data_flow, "returning %d", result);
- TRACE_EXIT result;
-}
-
-/* out:
- *
- * int *read_cnt: the number of bytes we removed from the zft_deblock_buf
- * (result)
- * int *to_do : the remaining size of the read-request.
- *
- * in:
- *
- * char *buff : buff is the address of the upper part of the user
- * buffer, that hasn't been filled with data yet.
-
- * int buf_pos_read : copy of from _ftape_read()
- * int buf_len_read : copy of buf_len_rd from _ftape_read()
- * char *zft_deblock_buf: zft_deblock_buf
- * unsigned short blk_sz: the block size valid for this volume, may differ
- * from zft_blk_sz.
- * int finish: if != 0 means that this is the last segment belonging
- * to this volume
- * returns the amount of data actually copied to the user-buffer
- *
- * to_do MUST NOT SHRINK except to indicate an EOF. In this case *to_do has to
- * be set to 0
- */
-static int zftc_read (int *read_cnt,
- __u8 __user *dst_buf, const int to_do,
- const __u8 *src_buf, const int seg_sz,
- const zft_position *pos, const zft_volinfo *volume)
-{
- int uncompressed_sz;
- int result = 0;
- int remaining = to_do;
- TRACE_FUN(ft_t_flow);
-
- TRACE_CATCH(zft_allocate_cmpr_mem(volume->blk_sz),);
- if (pos->seg_byte_pos == 0) {
- /* new segment just read
- */
- TRACE_CATCH(get_cseg(&cseg, src_buf, seg_sz, volume),
- *read_cnt = 0);
- memcpy(zftc_buf + cseg.cmpr_pos, src_buf + sizeof(__u16),
- cseg.count);
- cseg.cmpr_pos += cseg.count;
- *read_cnt = cseg.offset;
- DUMP_CMPR_INFO(ft_t_noise /* ft_t_any */, "", &cseg);
- } else {
- *read_cnt = 0;
- }
- /* loop and uncompress until user buffer full or
- * deblock-buffer empty
- */
- TRACE(ft_t_data_flow, "compressed_sz: %d, compos : %d, *read_cnt: %d",
- cseg.cmpr_sz, cseg.cmpr_pos, *read_cnt);
- while ((cseg.spans == 0) && (remaining > 0)) {
- if (cseg.cmpr_pos != 0) { /* cmpr buf is not empty */
- uncompressed_sz =
- zft_uncompress(zftc_buf,
- cseg.uncmpr == 0x8000 ?
- -cseg.cmpr_pos : cseg.cmpr_pos,
- zftc_scratch_buf,
- volume->blk_sz);
- if (uncompressed_sz != volume->blk_sz) {
- *read_cnt = 0;
- TRACE_ABORT(-EIO, ft_t_warn,
- "Uncompressed blk (%d) != blk size (%d)",
- uncompressed_sz, volume->blk_sz);
- }
- if (copy_to_user(dst_buf + result,
- zftc_scratch_buf,
- uncompressed_sz) != 0 ) {
- TRACE_EXIT -EFAULT;
- }
- remaining -= uncompressed_sz;
- result += uncompressed_sz;
- cseg.cmpr_pos = 0;
- }
- if (remaining > 0) {
- get_next_cluster(&cseg, src_buf, seg_sz,
- volume->end_seg == pos->seg_pos);
- if (cseg.count != 0) {
- memcpy(zftc_buf, src_buf + cseg.offset,
- cseg.count);
- cseg.cmpr_pos = cseg.count;
- cseg.offset += cseg.count;
- *read_cnt += cseg.count + sizeof(__u16);
- } else {
- remaining = 0;
- }
- }
- TRACE(ft_t_data_flow, "\n"
- KERN_INFO "compressed_sz: %d\n"
- KERN_INFO "compos : %d\n"
- KERN_INFO "*read_cnt : %d",
- cseg.cmpr_sz, cseg.cmpr_pos, *read_cnt);
- }
- if (seg_sz - cseg.offset <= 18) {
- *read_cnt += seg_sz - cseg.offset;
- TRACE(ft_t_data_flow, "expanding read cnt to: %d", *read_cnt);
- }
- TRACE(ft_t_data_flow, "\n"
- KERN_INFO "segment size : %d\n"
- KERN_INFO "read count : %d\n"
- KERN_INFO "buf_pos_read : %d\n"
- KERN_INFO "remaining : %d",
- seg_sz, *read_cnt, pos->seg_byte_pos,
- seg_sz - *read_cnt - pos->seg_byte_pos);
- TRACE(ft_t_data_flow, "returning: %d", result);
- TRACE_EXIT result;
-}
-
-/* seeks to the new data-position. Reads sometimes a segment.
- *
- * start_seg and end_seg give the boundaries of the current volume
- * blk_sz is the blk_sz of the current volume as stored in the
- * volume label
- *
- * We don't allow blocksizes less than 1024 bytes, therefore we don't need
- * a 64 bit argument for new_block_pos.
- */
-
-static int seek_in_segment(const unsigned int to_do, cmpr_info *c_info,
- const char *src_buf, const int seg_sz,
- const int seg_pos, const zft_volinfo *volume);
-static int slow_seek_forward_until_error(const unsigned int distance,
- cmpr_info *c_info, zft_position *pos,
- const zft_volinfo *volume, __u8 *buf);
-static int search_valid_segment(unsigned int segment,
- const unsigned int end_seg,
- const unsigned int max_foffs,
- zft_position *pos, cmpr_info *c_info,
- const zft_volinfo *volume, __u8 *buf);
-static int slow_seek_forward(unsigned int dest, cmpr_info *c_info,
- zft_position *pos, const zft_volinfo *volume,
- __u8 *buf);
-static int compute_seg_pos(unsigned int dest, zft_position *pos,
- const zft_volinfo *volume);
-
-#define ZFT_SLOW_SEEK_THRESHOLD 10 /* segments */
-#define ZFT_FAST_SEEK_MAX_TRIALS 10 /* times */
-#define ZFT_FAST_SEEK_BACKUP 10 /* segments */
-
-static int zftc_seek(unsigned int new_block_pos,
- zft_position *pos, const zft_volinfo *volume, __u8 *buf)
-{
- unsigned int dest;
- int limit;
- int distance;
- int result = 0;
- int seg_dist;
- int new_seg;
- int old_seg = 0;
- int fast_seek_trials = 0;
- TRACE_FUN(ft_t_flow);
-
- if (new_block_pos == 0) {
- pos->seg_pos = volume->start_seg;
- pos->seg_byte_pos = 0;
- pos->volume_pos = 0;
- zftc_reset();
- TRACE_EXIT 0;
- }
- dest = new_block_pos * (volume->blk_sz >> 10);
- distance = dest - (pos->volume_pos >> 10);
- while (distance != 0) {
- seg_dist = compute_seg_pos(dest, pos, volume);
- TRACE(ft_t_noise, "\n"
- KERN_INFO "seg_dist: %d\n"
- KERN_INFO "distance: %d\n"
- KERN_INFO "dest : %d\n"
- KERN_INFO "vpos : %d\n"
- KERN_INFO "seg_pos : %d\n"
- KERN_INFO "trials : %d",
- seg_dist, distance, dest,
- (unsigned int)(pos->volume_pos>>10), pos->seg_pos,
- fast_seek_trials);
- if (distance > 0) {
- if (seg_dist < 0) {
- TRACE(ft_t_bug, "BUG: distance %d > 0, "
- "segment difference %d < 0",
- distance, seg_dist);
- result = -EIO;
- break;
- }
- new_seg = pos->seg_pos + seg_dist;
- if (new_seg > volume->end_seg) {
- new_seg = volume->end_seg;
- }
- if (old_seg == new_seg || /* loop */
- seg_dist <= ZFT_SLOW_SEEK_THRESHOLD ||
- fast_seek_trials >= ZFT_FAST_SEEK_MAX_TRIALS) {
- TRACE(ft_t_noise, "starting slow seek:\n"
- KERN_INFO "fast seek failed too often: %s\n"
- KERN_INFO "near target position : %s\n"
- KERN_INFO "looping between two segs : %s",
- (fast_seek_trials >=
- ZFT_FAST_SEEK_MAX_TRIALS)
- ? "yes" : "no",
- (seg_dist <= ZFT_SLOW_SEEK_THRESHOLD)
- ? "yes" : "no",
- (old_seg == new_seg)
- ? "yes" : "no");
- result = slow_seek_forward(dest, &cseg,
- pos, volume, buf);
- break;
- }
- old_seg = new_seg;
- limit = volume->end_seg;
- fast_seek_trials ++;
- for (;;) {
- result = search_valid_segment(new_seg, limit,
- volume->size,
- pos, &cseg,
- volume, buf);
- if (result == 0 || result == -EINTR) {
- break;
- }
- if (new_seg == volume->start_seg) {
- result = -EIO; /* set errror
- * condition
- */
- break;
- }
- limit = new_seg;
- new_seg -= ZFT_FAST_SEEK_BACKUP;
- if (new_seg < volume->start_seg) {
- new_seg = volume->start_seg;
- }
- }
- if (result < 0) {
- TRACE(ft_t_warn,
- "Couldn't find a readable segment");
- break;
- }
- } else /* if (distance < 0) */ {
- if (seg_dist > 0) {
- TRACE(ft_t_bug, "BUG: distance %d < 0, "
- "segment difference %d >0",
- distance, seg_dist);
- result = -EIO;
- break;
- }
- new_seg = pos->seg_pos + seg_dist;
- if (fast_seek_trials > 0 && seg_dist == 0) {
- /* this avoids sticking to the same
- * segment all the time. On the other hand:
- * if we got here for the first time, and the
- * deblock_buffer still contains a valid
- * segment, then there is no need to skip to
- * the previous segment if the desired position
- * is inside this segment.
- */
- new_seg --;
- }
- if (new_seg < volume->start_seg) {
- new_seg = volume->start_seg;
- }
- limit = pos->seg_pos;
- fast_seek_trials ++;
- for (;;) {
- result = search_valid_segment(new_seg, limit,
- pos->volume_pos,
- pos, &cseg,
- volume, buf);
- if (result == 0 || result == -EINTR) {
- break;
- }
- if (new_seg == volume->start_seg) {
- result = -EIO; /* set errror
- * condition
- */
- break;
- }
- limit = new_seg;
- new_seg -= ZFT_FAST_SEEK_BACKUP;
- if (new_seg < volume->start_seg) {
- new_seg = volume->start_seg;
- }
- }
- if (result < 0) {
- TRACE(ft_t_warn,
- "Couldn't find a readable segment");
- break;
- }
- }
- distance = dest - (pos->volume_pos >> 10);
- }
- TRACE_EXIT result;
-}
-
-
-/* advance inside the given segment at most to_do bytes.
- * of kilobytes moved
- */
-
-static int seek_in_segment(const unsigned int to_do,
- cmpr_info *c_info,
- const char *src_buf,
- const int seg_sz,
- const int seg_pos,
- const zft_volinfo *volume)
-{
- int result = 0;
- int blk_sz = volume->blk_sz >> 10;
- int remaining = to_do;
- TRACE_FUN(ft_t_flow);
-
- if (c_info->offset == 0) {
- /* new segment just read
- */
- TRACE_CATCH(get_cseg(c_info, src_buf, seg_sz, volume),);
- c_info->cmpr_pos += c_info->count;
- DUMP_CMPR_INFO(ft_t_noise, "", c_info);
- }
- /* loop and uncompress until user buffer full or
- * deblock-buffer empty
- */
- TRACE(ft_t_noise, "compressed_sz: %d, compos : %d",
- c_info->cmpr_sz, c_info->cmpr_pos);
- while (c_info->spans == 0 && remaining > 0) {
- if (c_info->cmpr_pos != 0) { /* cmpr buf is not empty */
- result += blk_sz;
- remaining -= blk_sz;
- c_info->cmpr_pos = 0;
- }
- if (remaining > 0) {
- get_next_cluster(c_info, src_buf, seg_sz,
- volume->end_seg == seg_pos);
- if (c_info->count != 0) {
- c_info->cmpr_pos = c_info->count;
- c_info->offset += c_info->count;
- } else {
- break;
- }
- }
- /* Allow escape from this loop on signal!
- */
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- DUMP_CMPR_INFO(ft_t_noise, "", c_info);
- TRACE(ft_t_noise, "to_do: %d", remaining);
- }
- if (seg_sz - c_info->offset <= 18) {
- c_info->offset = seg_sz;
- }
- TRACE(ft_t_noise, "\n"
- KERN_INFO "segment size : %d\n"
- KERN_INFO "buf_pos_read : %d\n"
- KERN_INFO "remaining : %d",
- seg_sz, c_info->offset,
- seg_sz - c_info->offset);
- TRACE_EXIT result;
-}
-
-static int slow_seek_forward_until_error(const unsigned int distance,
- cmpr_info *c_info,
- zft_position *pos,
- const zft_volinfo *volume,
- __u8 *buf)
-{
- unsigned int remaining = distance;
- int seg_sz;
- int seg_pos;
- int result;
- TRACE_FUN(ft_t_flow);
-
- seg_pos = pos->seg_pos;
- do {
- TRACE_CATCH(seg_sz = zft_fetch_segment(seg_pos, buf,
- FT_RD_AHEAD),);
- /* now we have the contents of the actual segment in
- * the deblock buffer
- */
- TRACE_CATCH(result = seek_in_segment(remaining, c_info, buf,
- seg_sz, seg_pos,volume),);
- remaining -= result;
- pos->volume_pos += result<<10;
- pos->seg_pos = seg_pos;
- pos->seg_byte_pos = c_info->offset;
- seg_pos ++;
- if (seg_pos <= volume->end_seg && c_info->offset == seg_sz) {
- pos->seg_pos ++;
- pos->seg_byte_pos = 0;
- c_info->offset = 0;
- }
- /* Allow escape from this loop on signal!
- */
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- TRACE(ft_t_noise, "\n"
- KERN_INFO "remaining: %d\n"
- KERN_INFO "seg_pos: %d\n"
- KERN_INFO "end_seg: %d\n"
- KERN_INFO "result: %d",
- remaining, seg_pos, volume->end_seg, result);
- } while (remaining > 0 && seg_pos <= volume->end_seg);
- TRACE_EXIT 0;
-}
-
-/* return segment id of next segment containing valid data, -EIO otherwise
- */
-static int search_valid_segment(unsigned int segment,
- const unsigned int end_seg,
- const unsigned int max_foffs,
- zft_position *pos,
- cmpr_info *c_info,
- const zft_volinfo *volume,
- __u8 *buf)
-{
- cmpr_info tmp_info;
- int seg_sz;
- TRACE_FUN(ft_t_flow);
-
- memset(&tmp_info, 0, sizeof(cmpr_info));
- while (segment <= end_seg) {
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- TRACE(ft_t_noise,
- "Searching readable segment between %d and %d",
- segment, end_seg);
- seg_sz = zft_fetch_segment(segment, buf, FT_RD_AHEAD);
- if ((seg_sz > 0) &&
- (get_cseg (&tmp_info, buf, seg_sz, volume) >= 0) &&
- (tmp_info.foffs != 0 || segment == volume->start_seg)) {
- if ((tmp_info.foffs>>10) > max_foffs) {
- TRACE_ABORT(-EIO, ft_t_noise, "\n"
- KERN_INFO "cseg.foff: %d\n"
- KERN_INFO "dest : %d",
- (int)(tmp_info.foffs >> 10),
- max_foffs);
- }
- DUMP_CMPR_INFO(ft_t_noise, "", &tmp_info);
- *c_info = tmp_info;
- pos->seg_pos = segment;
- pos->volume_pos = c_info->foffs;
- pos->seg_byte_pos = c_info->offset;
- TRACE(ft_t_noise, "found segment at %d", segment);
- TRACE_EXIT 0;
- }
- segment++;
- }
- TRACE_EXIT -EIO;
-}
-
-static int slow_seek_forward(unsigned int dest,
- cmpr_info *c_info,
- zft_position *pos,
- const zft_volinfo *volume,
- __u8 *buf)
-{
- unsigned int distance;
- int result = 0;
- TRACE_FUN(ft_t_flow);
-
- distance = dest - (pos->volume_pos >> 10);
- while ((distance > 0) &&
- (result = slow_seek_forward_until_error(distance,
- c_info,
- pos,
- volume,
- buf)) < 0) {
- if (result == -EINTR) {
- break;
- }
- TRACE(ft_t_noise, "seg_pos: %d", pos->seg_pos);
- /* the failing segment is either pos->seg_pos or
- * pos->seg_pos + 1. There is no need to further try
- * that segment, because ftape_read_segment() already
- * has tried very much to read it. So we start with
- * following segment, which is pos->seg_pos + 1
- */
- if(search_valid_segment(pos->seg_pos+1, volume->end_seg, dest,
- pos, c_info,
- volume, buf) < 0) {
- TRACE(ft_t_noise, "search_valid_segment() failed");
- result = -EIO;
- break;
- }
- distance = dest - (pos->volume_pos >> 10);
- result = 0;
- TRACE(ft_t_noise, "segment: %d", pos->seg_pos);
- /* found valid segment, retry the seek */
- }
- TRACE_EXIT result;
-}
-
-static int compute_seg_pos(const unsigned int dest,
- zft_position *pos,
- const zft_volinfo *volume)
-{
- int segment;
- int distance = dest - (pos->volume_pos >> 10);
- unsigned int raw_size;
- unsigned int virt_size;
- unsigned int factor;
- TRACE_FUN(ft_t_flow);
-
- if (distance >= 0) {
- raw_size = volume->end_seg - pos->seg_pos + 1;
- virt_size = ((unsigned int)(volume->size>>10)
- - (unsigned int)(pos->volume_pos>>10)
- + FT_SECTORS_PER_SEGMENT - FT_ECC_SECTORS - 1);
- virt_size /= FT_SECTORS_PER_SEGMENT - FT_ECC_SECTORS;
- if (virt_size == 0 || raw_size == 0) {
- TRACE_EXIT 0;
- }
- if (raw_size >= (1<<25)) {
- factor = raw_size/(virt_size>>7);
- } else {
- factor = (raw_size<<7)/virt_size;
- }
- segment = distance/(FT_SECTORS_PER_SEGMENT-FT_ECC_SECTORS);
- segment = (segment * factor)>>7;
- } else {
- raw_size = pos->seg_pos - volume->start_seg + 1;
- virt_size = ((unsigned int)(pos->volume_pos>>10)
- + FT_SECTORS_PER_SEGMENT - FT_ECC_SECTORS - 1);
- virt_size /= FT_SECTORS_PER_SEGMENT - FT_ECC_SECTORS;
- if (virt_size == 0 || raw_size == 0) {
- TRACE_EXIT 0;
- }
- if (raw_size >= (1<<25)) {
- factor = raw_size/(virt_size>>7);
- } else {
- factor = (raw_size<<7)/virt_size;
- }
- segment = distance/(FT_SECTORS_PER_SEGMENT-FT_ECC_SECTORS);
- }
- TRACE(ft_t_noise, "factor: %d/%d", factor, 1<<7);
- TRACE_EXIT segment;
-}
-
-static struct zft_cmpr_ops cmpr_ops = {
- zftc_write,
- zftc_read,
- zftc_seek,
- zftc_lock,
- zftc_reset,
- zftc_cleanup
-};
-
-int zft_compressor_init(void)
-{
- TRACE_FUN(ft_t_flow);
-
-#ifdef MODULE
- printk(KERN_INFO "zftape compressor v1.00a 970514 for " FTAPE_VERSION "\n");
- if (TRACE_LEVEL >= ft_t_info) {
- printk(
-KERN_INFO "(c) 1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de)\n"
-KERN_INFO "Compressor for zftape (lzrw3 algorithm)\n");
- }
-#else /* !MODULE */
- /* print a short no-nonsense boot message */
- printk(KERN_INFO "zftape compressor v1.00a 970514\n");
- printk(KERN_INFO "For use with " FTAPE_VERSION "\n");
-#endif /* MODULE */
- TRACE(ft_t_info, "zft_compressor_init @ 0x%p", zft_compressor_init);
- TRACE(ft_t_info, "installing compressor for zftape ...");
- TRACE_CATCH(zft_cmpr_register(&cmpr_ops),);
- TRACE_EXIT 0;
-}
-
-#ifdef MODULE
-
-MODULE_AUTHOR(
- "(c) 1996, 1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de");
-MODULE_DESCRIPTION(
-"Compression routines for zftape. Uses the lzrw3 algorithm by Ross Williams");
-MODULE_LICENSE("GPL");
-
-/* Called by modules package when installing the driver
- */
-int init_module(void)
-{
- return zft_compressor_init();
-}
-
-#endif /* MODULE */
diff --git a/drivers/char/ftape/compressor/zftape-compress.h b/drivers/char/ftape/compressor/zftape-compress.h
deleted file mode 100644
index f200741e33b..00000000000
--- a/drivers/char/ftape/compressor/zftape-compress.h
+++ /dev/null
@@ -1,83 +0,0 @@
-#ifndef _ZFTAPE_COMPRESS_H
-#define _ZFTAPE_COMPRESS_H
-/*
- * Copyright (c) 1994-1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
- USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/compressor/zftape-compress.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/10/05 19:12:32 $
- *
- * This file contains macros and definitions for zftape's
- * builtin compression code.
- *
- */
-
-#include "../zftape/zftape-buffers.h"
-#include "../zftape/zftape-vtbl.h"
-#include "../compressor/lzrw3.h"
-
-/* CMPR_WRK_MEM_SIZE gives the size of the compression wrk_mem */
-/* I got these out of lzrw3.c */
-#define U(X) ((__u32) X)
-#define SIZE_P_BYTE (U(sizeof(__u8 *)))
-#define ALIGNMENT_FUDGE (U(16))
-
-#define CMPR_WRK_MEM_SIZE (U(4096)*(SIZE_P_BYTE) + ALIGNMENT_FUDGE)
-
-/* the maximum number of bytes the size of the "compressed" data can
- * exceed the uncompressed data. As it is quite useless to compress
- * data twice it is sometimes the case that it is more efficient to
- * copy a block of data but to feed it to the "compression"
- * algorithm. In this case there are some flag bytes or the like
- * proceding the "compressed" data. THAT MUST NOT BE THE CASE for the
- * algorithm we use for this driver. Instead, the high bit 15 of
- * compressed_size:
- *
- * compressed_size = ftape_compress()
- *
- * must be set in such a case.
- *
- * Nevertheless, it might also be as for lzrw3 that there is an
- * "intermediate" overrun that exceeds the amount of the compressed
- * data that is actually produced. During the algorithm we need in the
- * worst case MAX_CMP_GROUP bytes more than the input-size.
- */
-#define MAX_CMP_GROUP (2+16*2) /* from lzrw3.c */
-
-#define CMPR_OVERRUN MAX_CMP_GROUP /* during compression */
-
-/****************************************************/
-
-#define CMPR_BUFFER_SIZE (MAX_BLOCK_SIZE + CMPR_OVERRUN)
-
-/* the compression map stores the byte offset compressed blocks within
- * the current volume for catridges with format code 2,3 and 5
- * (and old versions of zftape) and the offset measured in kilobytes for
- * format code 4 and 6. This gives us a possible max. size of a
- * compressed volume of 1024*4GIG which should be enough.
- */
-typedef __u32 CmprMap;
-
-/* globals
- */
-
-/* exported functions
- */
-
-#endif /* _ZFTAPE_COMPRESS_H */
diff --git a/drivers/char/ftape/lowlevel/Makefile b/drivers/char/ftape/lowlevel/Makefile
deleted file mode 100644
index febab07ba42..00000000000
--- a/drivers/char/ftape/lowlevel/Makefile
+++ /dev/null
@@ -1,43 +0,0 @@
-#
-# Copyright (C) 1996, 1997 Clau-Justus Heine.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; see the file COPYING. If not, write to
-# the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-# $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/Makefile,v $
-# $Revision: 1.4 $
-# $Date: 1997/10/07 09:26:02 $
-#
-# Makefile for the lowlevel part QIC-40/80/3010/3020 floppy-tape
-# driver for Linux.
-#
-
-obj-$(CONFIG_FTAPE) += ftape.o
-
-ftape-objs := ftape-init.o fdc-io.o fdc-isr.o \
- ftape-bsm.o ftape-ctl.o ftape-read.o ftape-rw.o \
- ftape-write.o ftape-io.o ftape-calibr.o ftape-ecc.o fc-10.o \
- ftape-buffer.o ftape-format.o ftape_syms.o
-
-ifeq ($(CONFIG_FTAPE),y)
-ftape-objs += ftape-setup.o
-endif
-
-ifndef CONFIG_FT_NO_TRACE_AT_ALL
-ftape-objs += ftape-tracing.o
-endif
-
-ifeq ($(CONFIG_FT_PROC_FS),y)
-ftape-objs += ftape-proc.o
-endif
diff --git a/drivers/char/ftape/lowlevel/fc-10.c b/drivers/char/ftape/lowlevel/fc-10.c
deleted file mode 100644
index 9bc1cddade7..00000000000
--- a/drivers/char/ftape/lowlevel/fc-10.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/*
- *
-
- Copyright (C) 1993,1994 Jon Tombs.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- The entire guts of this program was written by dosemu, modified to
- record reads and writes to the ports in the 0x180-0x188 address space,
- while running the CMS program TAPE.EXE V2.0.5 supplied with the drive.
-
- Modified to use an array of addresses and generally cleaned up (made
- much shorter) 4 June 94, dosemu isn't that good at writing short code it
- would seem :-). Made independent of 0x180, but I doubt it will work
- at any other address.
-
- Modified for distribution with ftape source. 21 June 94, SJL.
-
- Modifications on 20 October 95, by Daniel Cohen (catman@wpi.edu):
- Modified to support different DMA, IRQ, and IO Ports. Borland's
- Turbo Debugger in virtual 8086 mode (TD386.EXE with hardware breakpoints
- provided by the TDH386.SYS Device Driver) was used on the CMS program
- TAPE V4.0.5. I set breakpoints on I/O to ports 0x180-0x187. Note that
- CMS's program will not successfully configure the tape drive if you set
- breakpoints on IO Reads, but you can set them on IO Writes without problems.
- Known problems:
- - You can not use DMA Channels 5 or 7.
-
- Modification on 29 January 96, by Daniel Cohen (catman@wpi.edu):
- Modified to only accept IRQs 3 - 7, or 9. Since we can only send a 3 bit
- number representing the IRQ to the card, special handling is required when
- IRQ 9 is selected. IRQ 2 and 9 are the same, and we should request IRQ 9
- from the kernel while telling the card to use IRQ 2. Thanks to Greg
- Crider (gcrider@iclnet.org) for finding and locating this bug, as well as
- testing the patch.
-
- Modification on 11 December 96, by Claus Heine (claus@momo.math.rwth-aachen.de):
- Modified a little to use variahle ft_fdc_base, ft_fdc_irq, ft_fdc_dma
- instead of preprocessor symbols. Thus we can compile this into the module
- or kernel and let the user specify the options as command line arguments.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fc-10.c,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:04 $
- *
- * This file contains code for the CMS FC-10/FC-20 card.
- */
-
-#include <asm/io.h>
-#include <linux/ftape.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/fdc-io.h"
-#include "../lowlevel/fc-10.h"
-
-static __u16 inbs_magic[] = {
- 0x3, 0x3, 0x0, 0x4, 0x7, 0x2, 0x5, 0x3, 0x1, 0x4,
- 0x3, 0x5, 0x2, 0x0, 0x3, 0x7, 0x4, 0x2,
- 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
-};
-
-static __u16 fc10_ports[] = {
- 0x180, 0x210, 0x2A0, 0x300, 0x330, 0x340, 0x370
-};
-
-int fc10_enable(void)
-{
- int i;
- __u8 cardConfig = 0x00;
- __u8 x;
- TRACE_FUN(ft_t_flow);
-
-/* This code will only work if the FC-10 (or FC-20) is set to
- * use DMA channels 1, 2, or 3. DMA channels 5 and 7 seem to be
- * initialized by the same command as channels 1 and 3, respectively.
- */
- if (ft_fdc_dma > 3) {
- TRACE_ABORT(0, ft_t_err,
-"Error: The FC-10/20 must be set to use DMA channels 1, 2, or 3!");
- }
-/* Only allow the FC-10/20 to use IRQ 3-7, or 9. Note that CMS's program
- * only accepts IRQ's 2-7, but in linux, IRQ 2 is the same as IRQ 9.
- */
- if (ft_fdc_irq < 3 || ft_fdc_irq == 8 || ft_fdc_irq > 9) {
- TRACE_ABORT(0, ft_t_err,
-"Error: The FC-10/20 must be set to use IRQ levels 3 - 7, or 9!\n"
-KERN_INFO "Note: IRQ 9 is the same as IRQ 2");
- }
- /* Clear state machine ???
- */
- for (i = 0; i < NR_ITEMS(inbs_magic); i++) {
- inb(ft_fdc_base + inbs_magic[i]);
- }
- outb(0x0, ft_fdc_base);
-
- x = inb(ft_fdc_base);
- if (x == 0x13 || x == 0x93) {
- for (i = 1; i < 8; i++) {
- if (inb(ft_fdc_base + i) != x) {
- TRACE_EXIT 0;
- }
- }
- } else {
- TRACE_EXIT 0;
- }
-
- outb(0x8, ft_fdc_base);
-
- for (i = 0; i < 8; i++) {
- if (inb(ft_fdc_base + i) != 0x0) {
- TRACE_EXIT 0;
- }
- }
- outb(0x10, ft_fdc_base);
-
- for (i = 0; i < 8; i++) {
- if (inb(ft_fdc_base + i) != 0xff) {
- TRACE_EXIT 0;
- }
- }
-
- /* Okay, we found a FC-10 card ! ???
- */
- outb(0x0, fdc.ccr);
-
- /* Clear state machine again ???
- */
- for (i = 0; i < NR_ITEMS(inbs_magic); i++) {
- inb(ft_fdc_base + inbs_magic[i]);
- }
- /* Send io port */
- for (i = 0; i < NR_ITEMS(fc10_ports); i++)
- if (ft_fdc_base == fc10_ports[i])
- cardConfig = i + 1;
- if (cardConfig == 0) {
- TRACE_EXIT 0; /* Invalid I/O Port */
- }
- /* and IRQ - If using IRQ 9, tell the FC card it is actually IRQ 2 */
- if (ft_fdc_irq != 9)
- cardConfig |= ft_fdc_irq << 3;
- else
- cardConfig |= 2 << 3;
-
- /* and finally DMA Channel */
- cardConfig |= ft_fdc_dma << 6;
- outb(cardConfig, ft_fdc_base); /* DMA [2 bits]/IRQ [3 bits]/BASE [3 bits] */
-
- /* Enable FC-10 ???
- */
- outb(0, fdc.ccr);
- outb(0, fdc.dor2);
- outb(FDC_DMA_MODE /* 8 */, fdc.dor);
- outb(FDC_DMA_MODE /* 8 */, fdc.dor);
- outb(1, fdc.dor2);
-
- /*************************************
- *
- * cH: why the hell should this be necessary? This is done
- * by fdc_reset()!!!
- *
- *************************************/
- /* Initialize fdc, select drive B:
- */
- outb(FDC_DMA_MODE, fdc.dor); /* assert reset, dma & irq enabled */
- /* 0x08 */
- outb(FDC_DMA_MODE|FDC_RESET_NOT, fdc.dor); /* release reset */
- /* 0x08 | 0x04 = 0x0c */
- outb(FDC_DMA_MODE|FDC_RESET_NOT|FDC_MOTOR_1|FTAPE_SEL_B, fdc.dor);
- /* 0x08 | 0x04 | 0x20 | 0x01 = 0x2d */
- /* select drive 1 */ /* why not drive 0 ???? */
- TRACE_EXIT (x == 0x93) ? 2 : 1;
-}
diff --git a/drivers/char/ftape/lowlevel/fc-10.h b/drivers/char/ftape/lowlevel/fc-10.h
deleted file mode 100644
index da7b88bca88..00000000000
--- a/drivers/char/ftape/lowlevel/fc-10.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#ifndef _FC_10_H
-#define _FC_10_H
-
-/*
- * Copyright (C) 1994-1996 Bas Laarhoven.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fc-10.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/09/19 09:05:22 $
- *
- * This file contains definitions for the FC-10 code
- * of the QIC-40/80 floppy-tape driver for Linux.
- */
-
-/*
- * fc-10.c defined global vars.
- */
-
-/*
- * fc-10.c defined global functions.
- */
-extern int fc10_enable(void);
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/fdc-io.c b/drivers/char/ftape/lowlevel/fdc-io.c
deleted file mode 100644
index bbcf918f056..00000000000
--- a/drivers/char/ftape/lowlevel/fdc-io.c
+++ /dev/null
@@ -1,1349 +0,0 @@
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-io.c,v $
- * $Revision: 1.7.4.2 $
- * $Date: 1997/11/16 14:48:17 $
- *
- * This file contains the low-level floppy disk interface code
- * for the QIC-40/80/3010/3020 floppy-tape driver "ftape" for
- * Linux.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/irq.h>
-
-#include <linux/ftape.h>
-#include <linux/qic117.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/fdc-io.h"
-#include "../lowlevel/fdc-isr.h"
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-calibr.h"
-#include "../lowlevel/fc-10.h"
-
-/* Global vars.
- */
-static int ftape_motor;
-volatile int ftape_current_cylinder = -1;
-volatile fdc_mode_enum fdc_mode = fdc_idle;
-fdc_config_info fdc;
-DECLARE_WAIT_QUEUE_HEAD(ftape_wait_intr);
-
-unsigned int ft_fdc_base = CONFIG_FT_FDC_BASE;
-unsigned int ft_fdc_irq = CONFIG_FT_FDC_IRQ;
-unsigned int ft_fdc_dma = CONFIG_FT_FDC_DMA;
-unsigned int ft_fdc_threshold = CONFIG_FT_FDC_THR; /* bytes */
-unsigned int ft_fdc_rate_limit = CONFIG_FT_FDC_MAX_RATE; /* bits/sec */
-int ft_probe_fc10 = CONFIG_FT_PROBE_FC10;
-int ft_mach2 = CONFIG_FT_MACH2;
-
-/* Local vars.
- */
-static spinlock_t fdc_io_lock;
-static unsigned int fdc_calibr_count;
-static unsigned int fdc_calibr_time;
-static int fdc_status;
-volatile __u8 fdc_head; /* FDC head from sector id */
-volatile __u8 fdc_cyl; /* FDC track from sector id */
-volatile __u8 fdc_sect; /* FDC sector from sector id */
-static int fdc_data_rate = 500; /* data rate (Kbps) */
-static int fdc_rate_code; /* data rate code (0 == 500 Kbps) */
-static int fdc_seek_rate = 2; /* step rate (msec) */
-static void (*do_ftape) (void);
-static int fdc_fifo_state; /* original fifo setting - fifo enabled */
-static int fdc_fifo_thr; /* original fifo setting - threshold */
-static int fdc_lock_state; /* original lock setting - locked */
-static int fdc_fifo_locked; /* has fifo && lock set ? */
-static __u8 fdc_precomp; /* default precomp. value (nsec) */
-static __u8 fdc_prec_code; /* fdc precomp. select code */
-
-static char ftape_id[] = "ftape"; /* used by request irq and free irq */
-
-static int fdc_set_seek_rate(int seek_rate);
-
-void fdc_catch_stray_interrupts(int count)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&fdc_io_lock, flags);
- if (count == 0) {
- ft_expected_stray_interrupts = 0;
- } else {
- ft_expected_stray_interrupts += count;
- }
- spin_unlock_irqrestore(&fdc_io_lock, flags);
-}
-
-/* Wait during a timeout period for a given FDC status.
- * If usecs == 0 then just test status, else wait at least for usecs.
- * Returns -ETIME on timeout. Function must be calibrated first !
- */
-static int fdc_wait(unsigned int usecs, __u8 mask, __u8 state)
-{
- int count_1 = (fdc_calibr_count * usecs +
- fdc_calibr_count - 1) / fdc_calibr_time;
-
- do {
- fdc_status = inb_p(fdc.msr);
- if ((fdc_status & mask) == state) {
- return 0;
- }
- } while (count_1-- >= 0);
- return -ETIME;
-}
-
-int fdc_ready_wait(unsigned int usecs)
-{
- return fdc_wait(usecs, FDC_DATA_READY | FDC_BUSY, FDC_DATA_READY);
-}
-
-/* Why can't we just use udelay()?
- */
-static void fdc_usec_wait(unsigned int usecs)
-{
- fdc_wait(usecs, 0, 1); /* will always timeout ! */
-}
-
-static int fdc_ready_out_wait(unsigned int usecs)
-{
- fdc_usec_wait(FT_RQM_DELAY); /* wait for valid RQM status */
- return fdc_wait(usecs, FDC_DATA_OUT_READY, FDC_DATA_OUT_READY);
-}
-
-void fdc_wait_calibrate(void)
-{
- ftape_calibrate("fdc_wait",
- fdc_usec_wait, &fdc_calibr_count, &fdc_calibr_time);
-}
-
-/* Wait for a (short) while for the FDC to become ready
- * and transfer the next command byte.
- * Return -ETIME on timeout on getting ready (depends on hardware!).
- */
-static int fdc_write(const __u8 data)
-{
- fdc_usec_wait(FT_RQM_DELAY); /* wait for valid RQM status */
- if (fdc_wait(150, FDC_DATA_READY_MASK, FDC_DATA_IN_READY) < 0) {
- return -ETIME;
- } else {
- outb(data, fdc.fifo);
- return 0;
- }
-}
-
-/* Wait for a (short) while for the FDC to become ready
- * and transfer the next result byte.
- * Return -ETIME if timeout on getting ready (depends on hardware!).
- */
-static int fdc_read(__u8 * data)
-{
- fdc_usec_wait(FT_RQM_DELAY); /* wait for valid RQM status */
- if (fdc_wait(150, FDC_DATA_READY_MASK, FDC_DATA_OUT_READY) < 0) {
- return -ETIME;
- } else {
- *data = inb(fdc.fifo);
- return 0;
- }
-}
-
-/* Output a cmd_len long command string to the FDC.
- * The FDC should be ready to receive a new command or
- * an error (EBUSY or ETIME) will occur.
- */
-int fdc_command(const __u8 * cmd_data, int cmd_len)
-{
- int result = 0;
- unsigned long flags;
- int count = cmd_len;
- int retry = 0;
-#ifdef TESTING
- static unsigned int last_time;
- unsigned int time;
-#endif
- TRACE_FUN(ft_t_any);
-
- fdc_usec_wait(FT_RQM_DELAY); /* wait for valid RQM status */
- spin_lock_irqsave(&fdc_io_lock, flags);
- if (!in_interrupt())
- /* Yes, I know, too much comments inside this function
- * ...
- *
- * Yet another bug in the original driver. All that
- * havoc is caused by the fact that the isr() sends
- * itself a command to the floppy tape driver (pause,
- * micro step pause). Now, the problem is that
- * commands are transmitted via the fdc_seek
- * command. But: the fdc performs seeks in the
- * background i.e. it doesn't signal busy while
- * sending the step pulses to the drive. Therefore the
- * non-interrupt level driver has no chance to tell
- * whether the isr() just has issued a seek. Therefore
- * we HAVE TO have a look at the ft_hide_interrupt
- * flag: it signals the non-interrupt level part of
- * the driver that it has to wait for the fdc until it
- * has completet seeking.
- *
- * THIS WAS PRESUMABLY THE REASON FOR ALL THAT
- * "fdc_read timeout" errors, I HOPE :-)
- */
- if (ft_hide_interrupt) {
- restore_flags(flags);
- TRACE(ft_t_info,
- "Waiting for the isr() completing fdc_seek()");
- if (fdc_interrupt_wait(2 * FT_SECOND) < 0) {
- TRACE(ft_t_warn,
- "Warning: timeout waiting for isr() seek to complete");
- }
- if (ft_hide_interrupt || !ft_seek_completed) {
- /* There cannot be another
- * interrupt. The isr() only stops
- * the tape and the next interrupt
- * won't come until we have send our
- * command to the drive.
- */
- TRACE_ABORT(-EIO, ft_t_bug,
- "BUG? isr() is still seeking?\n"
- KERN_INFO "hide: %d\n"
- KERN_INFO "seek: %d",
- ft_hide_interrupt,
- ft_seek_completed);
-
- }
- fdc_usec_wait(FT_RQM_DELAY); /* wait for valid RQM status */
- spin_lock_irqsave(&fdc_io_lock, flags);
- }
- fdc_status = inb(fdc.msr);
- if ((fdc_status & FDC_DATA_READY_MASK) != FDC_DATA_IN_READY) {
- spin_unlock_irqrestore(&fdc_io_lock, flags);
- TRACE_ABORT(-EBUSY, ft_t_err, "fdc not ready");
- }
- fdc_mode = *cmd_data; /* used by isr */
-#ifdef TESTING
- if (fdc_mode == FDC_SEEK) {
- time = ftape_timediff(last_time, ftape_timestamp());
- if (time < 6000) {
- TRACE(ft_t_bug,"Warning: short timeout between seek commands: %d",
- time);
- }
- }
-#endif
- if (!in_interrupt()) {
- /* shouldn't be cleared if called from isr
- */
- ft_interrupt_seen = 0;
- }
- while (count) {
- result = fdc_write(*cmd_data);
- if (result < 0) {
- TRACE(ft_t_fdc_dma,
- "fdc_mode = %02x, status = %02x at index %d",
- (int) fdc_mode, (int) fdc_status,
- cmd_len - count);
- if (++retry <= 3) {
- TRACE(ft_t_warn, "fdc_write timeout, retry");
- } else {
- TRACE(ft_t_err, "fdc_write timeout, fatal");
- /* recover ??? */
- break;
- }
- } else {
- --count;
- ++cmd_data;
- }
- }
-#ifdef TESTING
- if (fdc_mode == FDC_SEEK) {
- last_time = ftape_timestamp();
- }
-#endif
- spin_unlock_irqrestore(&fdc_io_lock, flags);
- TRACE_EXIT result;
-}
-
-/* Input a res_len long result string from the FDC.
- * The FDC should be ready to send the result or an error
- * (EBUSY or ETIME) will occur.
- */
-int fdc_result(__u8 * res_data, int res_len)
-{
- int result = 0;
- unsigned long flags;
- int count = res_len;
- int retry = 0;
- TRACE_FUN(ft_t_any);
-
- spin_lock_irqsave(&fdc_io_lock, flags);
- fdc_status = inb(fdc.msr);
- if ((fdc_status & FDC_DATA_READY_MASK) != FDC_DATA_OUT_READY) {
- TRACE(ft_t_err, "fdc not ready");
- result = -EBUSY;
- } else while (count) {
- if (!(fdc_status & FDC_BUSY)) {
- spin_unlock_irqrestore(&fdc_io_lock, flags);
- TRACE_ABORT(-EIO, ft_t_err, "premature end of result phase");
- }
- result = fdc_read(res_data);
- if (result < 0) {
- TRACE(ft_t_fdc_dma,
- "fdc_mode = %02x, status = %02x at index %d",
- (int) fdc_mode,
- (int) fdc_status,
- res_len - count);
- if (++retry <= 3) {
- TRACE(ft_t_warn, "fdc_read timeout, retry");
- } else {
- TRACE(ft_t_err, "fdc_read timeout, fatal");
- /* recover ??? */
- break;
- ++retry;
- }
- } else {
- --count;
- ++res_data;
- }
- }
- spin_unlock_irqrestore(&fdc_io_lock, flags);
- fdc_usec_wait(FT_RQM_DELAY); /* allow FDC to negate BSY */
- TRACE_EXIT result;
-}
-
-/* Handle command and result phases for
- * commands without data phase.
- */
-static int fdc_issue_command(const __u8 * out_data, int out_count,
- __u8 * in_data, int in_count)
-{
- TRACE_FUN(ft_t_any);
-
- if (out_count > 0) {
- TRACE_CATCH(fdc_command(out_data, out_count),);
- }
- /* will take 24 - 30 usec for fdc_sense_drive_status and
- * fdc_sense_interrupt_status commands.
- * 35 fails sometimes (5/9/93 SJL)
- * On a loaded system it incidentally takes longer than
- * this for the fdc to get ready ! ?????? WHY ??????
- * So until we know what's going on use a very long timeout.
- */
- TRACE_CATCH(fdc_ready_out_wait(500 /* usec */),);
- if (in_count > 0) {
- TRACE_CATCH(fdc_result(in_data, in_count),
- TRACE(ft_t_err, "result phase aborted"));
- }
- TRACE_EXIT 0;
-}
-
-/* Wait for FDC interrupt with timeout (in milliseconds).
- * Signals are blocked so the wait will not be aborted.
- * Note: interrupts must be enabled ! (23/05/93 SJL)
- */
-int fdc_interrupt_wait(unsigned int time)
-{
- DECLARE_WAITQUEUE(wait,current);
- sigset_t old_sigmask;
- static int resetting;
- long timeout;
-
- TRACE_FUN(ft_t_fdc_dma);
-
- if (waitqueue_active(&ftape_wait_intr)) {
- TRACE_ABORT(-EIO, ft_t_err, "error: nested call");
- }
- /* timeout time will be up to USPT microseconds too long ! */
- timeout = (1000 * time + FT_USPT - 1) / FT_USPT;
-
- spin_lock_irq(&current->sighand->siglock);
- old_sigmask = current->blocked;
- sigfillset(&current->blocked);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&ftape_wait_intr, &wait);
- while (!ft_interrupt_seen && timeout)
- timeout = schedule_timeout_interruptible(timeout);
-
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = old_sigmask;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- remove_wait_queue(&ftape_wait_intr, &wait);
- /* the following IS necessary. True: as well
- * wake_up_interruptible() as the schedule() set TASK_RUNNING
- * when they wakeup a task, BUT: it may very well be that
- * ft_interrupt_seen is already set to 1 when we enter here
- * in which case schedule() gets never called, and
- * TASK_RUNNING never set. This has the funny effect that we
- * execute all the code until we leave kernel space, but then
- * the task is stopped (a task CANNOT be preempted while in
- * kernel mode. Sending a pair of SIGSTOP/SIGCONT to the
- * tasks wakes it up again. Funny! :-)
- */
- current->state = TASK_RUNNING;
- if (ft_interrupt_seen) { /* woken up by interrupt */
- ft_interrupt_seen = 0;
- TRACE_EXIT 0;
- }
- /* Original comment:
- * In first instance, next statement seems unnecessary since
- * it will be cleared in fdc_command. However, a small part of
- * the software seems to rely on this being cleared here
- * (ftape_close might fail) so stick to it until things get fixed !
- */
- /* My deeply sought of knowledge:
- * Behold NO! It is obvious. fdc_reset() doesn't call fdc_command()
- * but nevertheless uses fdc_interrupt_wait(). OF COURSE this needs to
- * be reset here.
- */
- ft_interrupt_seen = 0; /* clear for next call */
- if (!resetting) {
- resetting = 1; /* break infinite recursion if reset fails */
- TRACE(ft_t_any, "cleanup reset");
- fdc_reset();
- resetting = 0;
- }
- TRACE_EXIT (signal_pending(current)) ? -EINTR : -ETIME;
-}
-
-/* Start/stop drive motor. Enable DMA mode.
- */
-void fdc_motor(int motor)
-{
- int unit = ft_drive_sel;
- int data = unit | FDC_RESET_NOT | FDC_DMA_MODE;
- TRACE_FUN(ft_t_any);
-
- ftape_motor = motor;
- if (ftape_motor) {
- data |= FDC_MOTOR_0 << unit;
- TRACE(ft_t_noise, "turning motor %d on", unit);
- } else {
- TRACE(ft_t_noise, "turning motor %d off", unit);
- }
- if (ft_mach2) {
- outb_p(data, fdc.dor2);
- } else {
- outb_p(data, fdc.dor);
- }
- ftape_sleep(10 * FT_MILLISECOND);
- TRACE_EXIT;
-}
-
-static void fdc_update_dsr(void)
-{
- TRACE_FUN(ft_t_any);
-
- TRACE(ft_t_flow, "rate = %d Kbps, precomp = %d ns",
- fdc_data_rate, fdc_precomp);
- if (fdc.type >= i82077) {
- outb_p((fdc_rate_code & 0x03) | fdc_prec_code, fdc.dsr);
- } else {
- outb_p(fdc_rate_code & 0x03, fdc.ccr);
- }
- TRACE_EXIT;
-}
-
-void fdc_set_write_precomp(int precomp)
-{
- TRACE_FUN(ft_t_any);
-
- TRACE(ft_t_noise, "New precomp: %d nsec", precomp);
- fdc_precomp = precomp;
- /* write precompensation can be set in multiples of 41.67 nsec.
- * round the parameter to the nearest multiple and convert it
- * into a fdc setting. Note that 0 means default to the fdc,
- * 7 is used instead of that.
- */
- fdc_prec_code = ((fdc_precomp + 21) / 42) << 2;
- if (fdc_prec_code == 0 || fdc_prec_code > (6 << 2)) {
- fdc_prec_code = 7 << 2;
- }
- fdc_update_dsr();
- TRACE_EXIT;
-}
-
-/* Reprogram the 82078 registers to use Data Rate Table 1 on all drives.
- */
-static void fdc_set_drive_specs(void)
-{
- __u8 cmd[] = { FDC_DRIVE_SPEC, 0x00, 0x00, 0x00, 0x00, 0xc0};
- int result;
- TRACE_FUN(ft_t_any);
-
- TRACE(ft_t_flow, "Setting of drive specs called");
- if (fdc.type >= i82078_1) {
- cmd[1] = (0 << 5) | (2 << 2);
- cmd[2] = (1 << 5) | (2 << 2);
- cmd[3] = (2 << 5) | (2 << 2);
- cmd[4] = (3 << 5) | (2 << 2);
- result = fdc_command(cmd, NR_ITEMS(cmd));
- if (result < 0) {
- TRACE(ft_t_err, "Setting of drive specs failed");
- }
- }
- TRACE_EXIT;
-}
-
-/* Select clock for fdc, must correspond with tape drive setting !
- * This also influences the fdc timing so we must adjust some values.
- */
-int fdc_set_data_rate(int rate)
-{
- int bad_rate = 0;
- TRACE_FUN(ft_t_any);
-
- /* Select clock for fdc, must correspond with tape drive setting !
- * This also influences the fdc timing so we must adjust some values.
- */
- TRACE(ft_t_fdc_dma, "new rate = %d", rate);
- switch (rate) {
- case 250:
- fdc_rate_code = fdc_data_rate_250;
- break;
- case 500:
- fdc_rate_code = fdc_data_rate_500;
- break;
- case 1000:
- if (fdc.type < i82077) {
- bad_rate = 1;
- } else {
- fdc_rate_code = fdc_data_rate_1000;
- }
- break;
- case 2000:
- if (fdc.type < i82078_1) {
- bad_rate = 1;
- } else {
- fdc_rate_code = fdc_data_rate_2000;
- }
- break;
- default:
- bad_rate = 1;
- }
- if (bad_rate) {
- TRACE_ABORT(-EIO,
- ft_t_fdc_dma, "%d is not a valid data rate", rate);
- }
- fdc_data_rate = rate;
- fdc_update_dsr();
- fdc_set_seek_rate(fdc_seek_rate); /* clock changed! */
- ftape_udelay(1000);
- TRACE_EXIT 0;
-}
-
-/* keep the unit select if keep_select is != 0,
- */
-static void fdc_dor_reset(int keep_select)
-{
- __u8 fdc_ctl = ft_drive_sel;
-
- if (keep_select != 0) {
- fdc_ctl |= FDC_DMA_MODE;
- if (ftape_motor) {
- fdc_ctl |= FDC_MOTOR_0 << ft_drive_sel;
- }
- }
- ftape_udelay(10); /* ??? but seems to be necessary */
- if (ft_mach2) {
- outb_p(fdc_ctl & 0x0f, fdc.dor);
- outb_p(fdc_ctl, fdc.dor2);
- } else {
- outb_p(fdc_ctl, fdc.dor);
- }
- fdc_usec_wait(10); /* delay >= 14 fdc clocks */
- if (keep_select == 0) {
- fdc_ctl = 0;
- }
- fdc_ctl |= FDC_RESET_NOT;
- if (ft_mach2) {
- outb_p(fdc_ctl & 0x0f, fdc.dor);
- outb_p(fdc_ctl, fdc.dor2);
- } else {
- outb_p(fdc_ctl, fdc.dor);
- }
-}
-
-/* Reset the floppy disk controller. Leave the ftape_unit selected.
- */
-void fdc_reset(void)
-{
- int st0;
- int i;
- int dummy;
- unsigned long flags;
- TRACE_FUN(ft_t_any);
-
- spin_lock_irqsave(&fdc_io_lock, flags);
-
- fdc_dor_reset(1); /* keep unit selected */
-
- fdc_mode = fdc_idle;
-
- /* maybe the spin_lock_irq* pair is not necessary, BUT:
- * the following line MUST be here. Otherwise fdc_interrupt_wait()
- * won't wait. Note that fdc_reset() is called from
- * ftape_dumb_stop() when the fdc is busy transferring data. In this
- * case fdc_isr() MOST PROBABLY sets ft_interrupt_seen, and tries
- * to get the result bytes from the fdc etc. CLASH.
- */
- ft_interrupt_seen = 0;
-
- /* Program data rate
- */
- fdc_update_dsr(); /* restore data rate and precomp */
-
- spin_unlock_irqrestore(&fdc_io_lock, flags);
-
- /*
- * Wait for first polling cycle to complete
- */
- if (fdc_interrupt_wait(1 * FT_SECOND) < 0) {
- TRACE(ft_t_err, "no drive polling interrupt!");
- } else { /* clear all disk-changed statuses */
- for (i = 0; i < 4; ++i) {
- if(fdc_sense_interrupt_status(&st0, &dummy) != 0) {
- TRACE(ft_t_err, "sense failed for %d", i);
- }
- if (i == ft_drive_sel) {
- ftape_current_cylinder = dummy;
- }
- }
- TRACE(ft_t_noise, "drive polling completed");
- }
- /*
- * SPECIFY COMMAND
- */
- fdc_set_seek_rate(fdc_seek_rate);
- /*
- * DRIVE SPECIFICATION COMMAND (if fdc type known)
- */
- if (fdc.type >= i82078_1) {
- fdc_set_drive_specs();
- }
- TRACE_EXIT;
-}
-
-#if !defined(CLK_48MHZ)
-# define CLK_48MHZ 1
-#endif
-
-/* When we're done, put the fdc into reset mode so that the regular
- * floppy disk driver will figure out that something is wrong and
- * initialize the controller the way it wants.
- */
-void fdc_disable(void)
-{
- __u8 cmd1[] = {FDC_CONFIGURE, 0x00, 0x00, 0x00};
- __u8 cmd2[] = {FDC_LOCK};
- __u8 cmd3[] = {FDC_UNLOCK};
- __u8 stat[1];
- TRACE_FUN(ft_t_flow);
-
- if (!fdc_fifo_locked) {
- fdc_reset();
- TRACE_EXIT;
- }
- if (fdc_issue_command(cmd3, 1, stat, 1) < 0 || stat[0] != 0x00) {
- fdc_dor_reset(0);
- TRACE_ABORT(/**/, ft_t_bug,
- "couldn't unlock fifo, configuration remains changed");
- }
- fdc_fifo_locked = 0;
- if (CLK_48MHZ && fdc.type >= i82078) {
- cmd1[0] |= FDC_CLK48_BIT;
- }
- cmd1[2] = ((fdc_fifo_state) ? 0 : 0x20) + (fdc_fifo_thr - 1);
- if (fdc_command(cmd1, NR_ITEMS(cmd1)) < 0) {
- fdc_dor_reset(0);
- TRACE_ABORT(/**/, ft_t_bug,
- "couldn't reconfigure fifo to old state");
- }
- if (fdc_lock_state &&
- fdc_issue_command(cmd2, 1, stat, 1) < 0) {
- fdc_dor_reset(0);
- TRACE_ABORT(/**/, ft_t_bug, "couldn't lock old state again");
- }
- TRACE(ft_t_noise, "fifo restored: %sabled, thr. %d, %slocked",
- fdc_fifo_state ? "en" : "dis",
- fdc_fifo_thr, (fdc_lock_state) ? "" : "not ");
- fdc_dor_reset(0);
- TRACE_EXIT;
-}
-
-/* Specify FDC seek-rate (milliseconds)
- */
-static int fdc_set_seek_rate(int seek_rate)
-{
- /* set step rate, dma mode, and minimal head load and unload times
- */
- __u8 in[3] = { FDC_SPECIFY, 1, (1 << 1)};
-
- fdc_seek_rate = seek_rate;
- in[1] |= (16 - (fdc_data_rate * fdc_seek_rate) / 500) << 4;
-
- return fdc_command(in, 3);
-}
-
-/* Sense drive status: get unit's drive status (ST3)
- */
-int fdc_sense_drive_status(int *st3)
-{
- __u8 out[2];
- __u8 in[1];
- TRACE_FUN(ft_t_any);
-
- out[0] = FDC_SENSED;
- out[1] = ft_drive_sel;
- TRACE_CATCH(fdc_issue_command(out, 2, in, 1),);
- *st3 = in[0];
- TRACE_EXIT 0;
-}
-
-/* Sense Interrupt Status command:
- * should be issued at the end of each seek.
- * get ST0 and current cylinder.
- */
-int fdc_sense_interrupt_status(int *st0, int *current_cylinder)
-{
- __u8 out[1];
- __u8 in[2];
- TRACE_FUN(ft_t_any);
-
- out[0] = FDC_SENSEI;
- TRACE_CATCH(fdc_issue_command(out, 1, in, 2),);
- *st0 = in[0];
- *current_cylinder = in[1];
- TRACE_EXIT 0;
-}
-
-/* step to track
- */
-int fdc_seek(int track)
-{
- __u8 out[3];
- int st0, pcn;
-#ifdef TESTING
- unsigned int time;
-#endif
- TRACE_FUN(ft_t_any);
-
- out[0] = FDC_SEEK;
- out[1] = ft_drive_sel;
- out[2] = track;
-#ifdef TESTING
- time = ftape_timestamp();
-#endif
- /* We really need this command to work !
- */
- ft_seek_completed = 0;
- TRACE_CATCH(fdc_command(out, 3),
- fdc_reset();
- TRACE(ft_t_noise, "destination was: %d, resetting FDC...",
- track));
- /* Handle interrupts until ft_seek_completed or timeout.
- */
- for (;;) {
- TRACE_CATCH(fdc_interrupt_wait(2 * FT_SECOND),);
- if (ft_seek_completed) {
- TRACE_CATCH(fdc_sense_interrupt_status(&st0, &pcn),);
- if ((st0 & ST0_SEEK_END) == 0) {
- TRACE_ABORT(-EIO, ft_t_err,
- "no seek-end after seek completion !??");
- }
- break;
- }
- }
-#ifdef TESTING
- time = ftape_timediff(time, ftape_timestamp()) / abs(track - ftape_current_cylinder);
- if ((time < 900 || time > 3100) && abs(track - ftape_current_cylinder) > 5) {
- TRACE(ft_t_warn, "Wrong FDC STEP interval: %d usecs (%d)",
- time, track - ftape_current_cylinder);
- }
-#endif
- /* Verify whether we issued the right tape command.
- */
- /* Verify that we seek to the proper track. */
- if (pcn != track) {
- TRACE_ABORT(-EIO, ft_t_err, "bad seek..");
- }
- ftape_current_cylinder = track;
- TRACE_EXIT 0;
-}
-
-static int perpend_mode; /* set if fdc is in perpendicular mode */
-
-static int perpend_off(void)
-{
- __u8 perpend[] = {FDC_PERPEND, 0x00};
- TRACE_FUN(ft_t_any);
-
- if (perpend_mode) {
- /* Turn off perpendicular mode */
- perpend[1] = 0x80;
- TRACE_CATCH(fdc_command(perpend, 2),
- TRACE(ft_t_err,"Perpendicular mode exit failed!"));
- perpend_mode = 0;
- }
- TRACE_EXIT 0;
-}
-
-static int handle_perpend(int segment_id)
-{
- __u8 perpend[] = {FDC_PERPEND, 0x00};
- TRACE_FUN(ft_t_any);
-
- /* When writing QIC-3020 tapes, turn on perpendicular mode
- * if tape is moving in forward direction (even tracks).
- */
- if (ft_qic_std == QIC_TAPE_QIC3020 &&
- ((segment_id / ft_segments_per_track) & 1) == 0) {
-/* FIXME: some i82077 seem to support perpendicular mode as
- * well.
- */
-#if 0
- if (fdc.type < i82077AA) {}
-#else
- if (fdc.type < i82077 && ft_data_rate < 1000) {
-#endif
- /* fdc does not support perpendicular mode: complain
- */
- TRACE_ABORT(-EIO, ft_t_err,
- "Your FDC does not support QIC-3020.");
- }
- perpend[1] = 0x03 /* 0x83 + (0x4 << ft_drive_sel) */ ;
- TRACE_CATCH(fdc_command(perpend, 2),
- TRACE(ft_t_err,"Perpendicular mode entry failed!"));
- TRACE(ft_t_flow, "Perpendicular mode set");
- perpend_mode = 1;
- TRACE_EXIT 0;
- }
- TRACE_EXIT perpend_off();
-}
-
-static inline void fdc_setup_dma(char mode,
- volatile void *addr, unsigned int count)
-{
- /* Program the DMA controller.
- */
- disable_dma(fdc.dma);
- clear_dma_ff(fdc.dma);
- set_dma_mode(fdc.dma, mode);
- set_dma_addr(fdc.dma, virt_to_bus((void*)addr));
- set_dma_count(fdc.dma, count);
- enable_dma(fdc.dma);
-}
-
-/* Setup fdc and dma for formatting the next segment
- */
-int fdc_setup_formatting(buffer_struct * buff)
-{
- unsigned long flags;
- __u8 out[6] = {
- FDC_FORMAT, 0x00, 3, 4 * FT_SECTORS_PER_SEGMENT, 0x00, 0x6b
- };
- TRACE_FUN(ft_t_any);
-
- TRACE_CATCH(handle_perpend(buff->segment_id),);
- /* Program the DMA controller.
- */
- TRACE(ft_t_fdc_dma,
- "phys. addr. = %lx", virt_to_bus((void*) buff->ptr));
- spin_lock_irqsave(&fdc_io_lock, flags);
- fdc_setup_dma(DMA_MODE_WRITE, buff->ptr, FT_SECTORS_PER_SEGMENT * 4);
- /* Issue FDC command to start reading/writing.
- */
- out[1] = ft_drive_sel;
- out[4] = buff->gap3;
- TRACE_CATCH(fdc_setup_error = fdc_command(out, sizeof(out)),
- restore_flags(flags); fdc_mode = fdc_idle);
- spin_unlock_irqrestore(&fdc_io_lock, flags);
- TRACE_EXIT 0;
-}
-
-
-/* Setup Floppy Disk Controller and DMA to read or write the next cluster
- * of good sectors from or to the current segment.
- */
-int fdc_setup_read_write(buffer_struct * buff, __u8 operation)
-{
- unsigned long flags;
- __u8 out[9];
- int dma_mode;
- TRACE_FUN(ft_t_any);
-
- switch(operation) {
- case FDC_VERIFY:
- if (fdc.type < i82077) {
- operation = FDC_READ;
- }
- case FDC_READ:
- case FDC_READ_DELETED:
- dma_mode = DMA_MODE_READ;
- TRACE(ft_t_fdc_dma, "xfer %d sectors to 0x%p",
- buff->sector_count, buff->ptr);
- TRACE_CATCH(perpend_off(),);
- break;
- case FDC_WRITE_DELETED:
- TRACE(ft_t_noise, "deleting segment %d", buff->segment_id);
- case FDC_WRITE:
- dma_mode = DMA_MODE_WRITE;
- /* When writing QIC-3020 tapes, turn on perpendicular mode
- * if tape is moving in forward direction (even tracks).
- */
- TRACE_CATCH(handle_perpend(buff->segment_id),);
- TRACE(ft_t_fdc_dma, "xfer %d sectors from 0x%p",
- buff->sector_count, buff->ptr);
- break;
- default:
- TRACE_ABORT(-EIO,
- ft_t_bug, "bug: invalid operation parameter");
- }
- TRACE(ft_t_fdc_dma, "phys. addr. = %lx",virt_to_bus((void*)buff->ptr));
- spin_lock_irqsave(&fdc_io_lock, flags);
- if (operation != FDC_VERIFY) {
- fdc_setup_dma(dma_mode, buff->ptr,
- FT_SECTOR_SIZE * buff->sector_count);
- }
- /* Issue FDC command to start reading/writing.
- */
- out[0] = operation;
- out[1] = ft_drive_sel;
- out[2] = buff->cyl;
- out[3] = buff->head;
- out[4] = buff->sect + buff->sector_offset;
- out[5] = 3; /* Sector size of 1K. */
- out[6] = out[4] + buff->sector_count - 1; /* last sector */
- out[7] = 109; /* Gap length. */
- out[8] = 0xff; /* No limit to transfer size. */
- TRACE(ft_t_fdc_dma, "C: 0x%02x, H: 0x%02x, R: 0x%02x, cnt: 0x%02x",
- out[2], out[3], out[4], out[6] - out[4] + 1);
- spin_unlock_irqrestore(&fdc_io_lock, flags);
- TRACE_CATCH(fdc_setup_error = fdc_command(out, 9),fdc_mode = fdc_idle);
- TRACE_EXIT 0;
-}
-
-int fdc_fifo_threshold(__u8 threshold,
- int *fifo_state, int *lock_state, int *fifo_thr)
-{
- const __u8 cmd0[] = {FDC_DUMPREGS};
- __u8 cmd1[] = {FDC_CONFIGURE, 0, (0x0f & (threshold - 1)), 0};
- const __u8 cmd2[] = {FDC_LOCK};
- const __u8 cmd3[] = {FDC_UNLOCK};
- __u8 reg[10];
- __u8 stat;
- int i;
- int result;
- TRACE_FUN(ft_t_any);
-
- if (CLK_48MHZ && fdc.type >= i82078) {
- cmd1[0] |= FDC_CLK48_BIT;
- }
- /* Dump fdc internal registers for examination
- */
- TRACE_CATCH(fdc_command(cmd0, NR_ITEMS(cmd0)),
- TRACE(ft_t_warn, "dumpreg cmd failed, fifo unchanged"));
- /* Now read fdc internal registers from fifo
- */
- for (i = 0; i < (int)NR_ITEMS(reg); ++i) {
- fdc_read(&reg[i]);
- TRACE(ft_t_fdc_dma, "Register %d = 0x%02x", i, reg[i]);
- }
- if (fifo_state && lock_state && fifo_thr) {
- *fifo_state = (reg[8] & 0x20) == 0;
- *lock_state = reg[7] & 0x80;
- *fifo_thr = 1 + (reg[8] & 0x0f);
- }
- TRACE(ft_t_noise,
- "original fifo state: %sabled, threshold %d, %slocked",
- ((reg[8] & 0x20) == 0) ? "en" : "dis",
- 1 + (reg[8] & 0x0f), (reg[7] & 0x80) ? "" : "not ");
- /* If fdc is already locked, unlock it first ! */
- if (reg[7] & 0x80) {
- fdc_ready_wait(100);
- TRACE_CATCH(fdc_issue_command(cmd3, NR_ITEMS(cmd3), &stat, 1),
- TRACE(ft_t_bug, "FDC unlock command failed, "
- "configuration unchanged"));
- }
- fdc_fifo_locked = 0;
- /* Enable fifo and set threshold at xx bytes to allow a
- * reasonably large latency and reduce number of dma bursts.
- */
- fdc_ready_wait(100);
- if ((result = fdc_command(cmd1, NR_ITEMS(cmd1))) < 0) {
- TRACE(ft_t_bug, "configure cmd failed, fifo unchanged");
- }
- /* Now lock configuration so reset will not change it
- */
- if(fdc_issue_command(cmd2, NR_ITEMS(cmd2), &stat, 1) < 0 ||
- stat != 0x10) {
- TRACE_ABORT(-EIO, ft_t_bug,
- "FDC lock command failed, stat = 0x%02x", stat);
- }
- fdc_fifo_locked = 1;
- TRACE_EXIT result;
-}
-
-static int fdc_fifo_enable(void)
-{
- TRACE_FUN(ft_t_any);
-
- if (fdc_fifo_locked) {
- TRACE_ABORT(0, ft_t_warn, "Fifo not enabled because locked");
- }
- TRACE_CATCH(fdc_fifo_threshold(ft_fdc_threshold /* bytes */,
- &fdc_fifo_state,
- &fdc_lock_state,
- &fdc_fifo_thr),);
- TRACE_CATCH(fdc_fifo_threshold(ft_fdc_threshold /* bytes */,
- NULL, NULL, NULL),);
- TRACE_EXIT 0;
-}
-
-/* Determine fd controller type
- */
-static __u8 fdc_save_state[2];
-
-static int fdc_probe(void)
-{
- __u8 cmd[1];
- __u8 stat[16]; /* must be able to hold dumpregs & save results */
- int i;
- TRACE_FUN(ft_t_any);
-
- /* Try to find out what kind of fd controller we have to deal with
- * Scheme borrowed from floppy driver:
- * first try if FDC_DUMPREGS command works
- * (this indicates that we have a 82072 or better)
- * then try the FDC_VERSION command (82072 doesn't support this)
- * then try the FDC_UNLOCK command (some older 82077's don't support this)
- * then try the FDC_PARTID command (82078's support this)
- */
- cmd[0] = FDC_DUMPREGS;
- if (fdc_issue_command(cmd, 1, stat, 1) != 0) {
- TRACE_ABORT(no_fdc, ft_t_bug, "No FDC found");
- }
- if (stat[0] == 0x80) {
- /* invalid command: must be pre 82072 */
- TRACE_ABORT(i8272,
- ft_t_warn, "Type 8272A/765A compatible FDC found");
- }
- fdc_result(&stat[1], 9);
- fdc_save_state[0] = stat[7];
- fdc_save_state[1] = stat[8];
- cmd[0] = FDC_VERSION;
- if (fdc_issue_command(cmd, 1, stat, 1) < 0 || stat[0] == 0x80) {
- TRACE_ABORT(i8272, ft_t_warn, "Type 82072 FDC found");
- }
- if (*stat != 0x90) {
- TRACE_ABORT(i8272, ft_t_warn, "Unknown FDC found");
- }
- cmd[0] = FDC_UNLOCK;
- if(fdc_issue_command(cmd, 1, stat, 1) < 0 || stat[0] != 0x00) {
- TRACE_ABORT(i8272, ft_t_warn,
- "Type pre-1991 82077 FDC found, "
- "treating it like a 82072");
- }
- if (fdc_save_state[0] & 0x80) { /* was locked */
- cmd[0] = FDC_LOCK; /* restore lock */
- (void)fdc_issue_command(cmd, 1, stat, 1);
- TRACE(ft_t_warn, "FDC is already locked");
- }
- /* Test for a i82078 FDC */
- cmd[0] = FDC_PARTID;
- if (fdc_issue_command(cmd, 1, stat, 1) < 0 || stat[0] == 0x80) {
- /* invalid command: not a i82078xx type FDC */
- for (i = 0; i < 4; ++i) {
- outb_p(i, fdc.tdr);
- if ((inb_p(fdc.tdr) & 0x03) != i) {
- TRACE_ABORT(i82077,
- ft_t_warn, "Type 82077 FDC found");
- }
- }
- TRACE_ABORT(i82077AA, ft_t_warn, "Type 82077AA FDC found");
- }
- /* FDC_PARTID cmd succeeded */
- switch (stat[0] >> 5) {
- case 0x0:
- /* i82078SL or i82078-1. The SL part cannot run at
- * 2Mbps (the SL and -1 dies are identical; they are
- * speed graded after production, according to Intel).
- * Some SL's can be detected by doing a SAVE cmd and
- * look at bit 7 of the first byte (the SEL3V# bit).
- * If it is 0, the part runs off 3Volts, and hence it
- * is a SL.
- */
- cmd[0] = FDC_SAVE;
- if(fdc_issue_command(cmd, 1, stat, 16) < 0) {
- TRACE(ft_t_err, "FDC_SAVE failed. Dunno why");
- /* guess we better claim the fdc to be a i82078 */
- TRACE_ABORT(i82078,
- ft_t_warn,
- "Type i82078 FDC (i suppose) found");
- }
- if ((stat[0] & FDC_SEL3V_BIT)) {
- /* fdc running off 5Volts; Pray that it's a i82078-1
- */
- TRACE_ABORT(i82078_1, ft_t_warn,
- "Type i82078-1 or 5Volt i82078SL FDC found");
- }
- TRACE_ABORT(i82078, ft_t_warn,
- "Type 3Volt i82078SL FDC (1Mbps) found");
- case 0x1:
- case 0x2: /* S82078B */
- /* The '78B isn't '78 compatible. Detect it as a '77AA */
- TRACE_ABORT(i82077AA, ft_t_warn, "Type i82077AA FDC found");
- case 0x3: /* NSC PC8744 core; used in several super-IO chips */
- TRACE_ABORT(i82077AA,
- ft_t_warn, "Type 82077AA compatible FDC found");
- default:
- TRACE(ft_t_warn, "A previously undetected FDC found");
- TRACE_ABORT(i82077AA, ft_t_warn,
- "Treating it as a 82077AA. Please report partid= %d",
- stat[0]);
- } /* switch(stat[ 0] >> 5) */
- TRACE_EXIT no_fdc;
-}
-
-static int fdc_request_regions(void)
-{
- TRACE_FUN(ft_t_flow);
-
- if (ft_mach2 || ft_probe_fc10) {
- if (!request_region(fdc.sra, 8, "fdc (ft)")) {
-#ifndef BROKEN_FLOPPY_DRIVER
- TRACE_EXIT -EBUSY;
-#else
- TRACE(ft_t_warn,
-"address 0x%03x occupied (by floppy driver?), using it anyway", fdc.sra);
-#endif
- }
- } else {
- if (!request_region(fdc.sra, 6, "fdc (ft)")) {
-#ifndef BROKEN_FLOPPY_DRIVER
- TRACE_EXIT -EBUSY;
-#else
- TRACE(ft_t_warn,
-"address 0x%03x occupied (by floppy driver?), using it anyway", fdc.sra);
-#endif
- }
- if (!request_region(fdc.sra + 7, 1, "fdc (ft)")) {
-#ifndef BROKEN_FLOPPY_DRIVER
- release_region(fdc.sra, 6);
- TRACE_EXIT -EBUSY;
-#else
- TRACE(ft_t_warn,
-"address 0x%03x occupied (by floppy driver?), using it anyway", fdc.sra + 7);
-#endif
- }
- }
- TRACE_EXIT 0;
-}
-
-void fdc_release_regions(void)
-{
- TRACE_FUN(ft_t_flow);
-
- if (fdc.sra != 0) {
- if (fdc.dor2 != 0) {
- release_region(fdc.sra, 8);
- } else {
- release_region(fdc.sra, 6);
- release_region(fdc.dir, 1);
- }
- }
- TRACE_EXIT;
-}
-
-static int fdc_config_regs(unsigned int fdc_base,
- unsigned int fdc_irq,
- unsigned int fdc_dma)
-{
- TRACE_FUN(ft_t_flow);
-
- fdc.irq = fdc_irq;
- fdc.dma = fdc_dma;
- fdc.sra = fdc_base;
- fdc.srb = fdc_base + 1;
- fdc.dor = fdc_base + 2;
- fdc.tdr = fdc_base + 3;
- fdc.msr = fdc.dsr = fdc_base + 4;
- fdc.fifo = fdc_base + 5;
- fdc.dir = fdc.ccr = fdc_base + 7;
- fdc.dor2 = (ft_mach2 || ft_probe_fc10) ? fdc_base + 6 : 0;
- TRACE_CATCH(fdc_request_regions(), fdc.sra = 0);
- TRACE_EXIT 0;
-}
-
-static int fdc_config(void)
-{
- static int already_done;
- TRACE_FUN(ft_t_any);
-
- if (already_done) {
- TRACE_CATCH(fdc_request_regions(),);
- *(fdc.hook) = fdc_isr; /* hook our handler in */
- TRACE_EXIT 0;
- }
- if (ft_probe_fc10) {
- int fc_type;
-
- TRACE_CATCH(fdc_config_regs(ft_fdc_base,
- ft_fdc_irq, ft_fdc_dma),);
- fc_type = fc10_enable();
- if (fc_type != 0) {
- TRACE(ft_t_warn, "FC-%c0 controller found", '0' + fc_type);
- fdc.type = fc10;
- fdc.hook = &do_ftape;
- *(fdc.hook) = fdc_isr; /* hook our handler in */
- already_done = 1;
- TRACE_EXIT 0;
- } else {
- TRACE(ft_t_warn, "FC-10/20 controller not found");
- fdc_release_regions();
- fdc.type = no_fdc;
- ft_probe_fc10 = 0;
- ft_fdc_base = 0x3f0;
- ft_fdc_irq = 6;
- ft_fdc_dma = 2;
- }
- }
- TRACE(ft_t_warn, "fdc base: 0x%x, irq: %d, dma: %d",
- ft_fdc_base, ft_fdc_irq, ft_fdc_dma);
- TRACE_CATCH(fdc_config_regs(ft_fdc_base, ft_fdc_irq, ft_fdc_dma),);
- fdc.hook = &do_ftape;
- *(fdc.hook) = fdc_isr; /* hook our handler in */
- already_done = 1;
- TRACE_EXIT 0;
-}
-
-static irqreturn_t ftape_interrupt(int irq, void *dev_id)
-{
- void (*handler) (void) = *fdc.hook;
- int handled = 0;
- TRACE_FUN(ft_t_any);
-
- *fdc.hook = NULL;
- if (handler) {
- handled = 1;
- handler();
- } else {
- TRACE(ft_t_bug, "Unexpected ftape interrupt");
- }
- TRACE_EXIT IRQ_RETVAL(handled);
-}
-
-static int fdc_grab_irq_and_dma(void)
-{
- TRACE_FUN(ft_t_any);
-
- if (fdc.hook == &do_ftape) {
- /* Get fast interrupt handler.
- */
- if (request_irq(fdc.irq, ftape_interrupt,
- IRQF_DISABLED, "ft", ftape_id)) {
- TRACE_ABORT(-EIO, ft_t_bug,
- "Unable to grab IRQ%d for ftape driver",
- fdc.irq);
- }
- if (request_dma(fdc.dma, ftape_id)) {
- free_irq(fdc.irq, ftape_id);
- TRACE_ABORT(-EIO, ft_t_bug,
- "Unable to grab DMA%d for ftape driver",
- fdc.dma);
- }
- }
- if (ft_fdc_base != 0x3f0 && (ft_fdc_dma == 2 || ft_fdc_irq == 6)) {
- /* Using same dma channel or irq as standard fdc, need
- * to disable the dma-gate on the std fdc. This
- * couldn't be done in the floppy driver as some
- * laptops are using the dma-gate to enter a low power
- * or even suspended state :-(
- */
- outb_p(FDC_RESET_NOT, 0x3f2);
- TRACE(ft_t_noise, "DMA-gate on standard fdc disabled");
- }
- TRACE_EXIT 0;
-}
-
-int fdc_release_irq_and_dma(void)
-{
- TRACE_FUN(ft_t_any);
-
- if (fdc.hook == &do_ftape) {
- disable_dma(fdc.dma); /* just in case... */
- free_dma(fdc.dma);
- free_irq(fdc.irq, ftape_id);
- }
- if (ft_fdc_base != 0x3f0 && (ft_fdc_dma == 2 || ft_fdc_irq == 6)) {
- /* Using same dma channel as standard fdc, need to
- * disable the dma-gate on the std fdc. This couldn't
- * be done in the floppy driver as some laptops are
- * using the dma-gate to enter a low power or even
- * suspended state :-(
- */
- outb_p(FDC_RESET_NOT | FDC_DMA_MODE, 0x3f2);
- TRACE(ft_t_noise, "DMA-gate on standard fdc enabled again");
- }
- TRACE_EXIT 0;
-}
-
-int fdc_init(void)
-{
- TRACE_FUN(ft_t_any);
-
- /* find a FDC to use */
- TRACE_CATCH(fdc_config(),);
- TRACE_CATCH(fdc_grab_irq_and_dma(), fdc_release_regions());
- ftape_motor = 0;
- fdc_catch_stray_interrupts(0); /* clear number of awainted
- * stray interrupte
- */
- fdc_catch_stray_interrupts(1); /* one always comes (?) */
- TRACE(ft_t_flow, "resetting fdc");
- fdc_set_seek_rate(2); /* use nominal QIC step rate */
- fdc_reset(); /* init fdc & clear track counters */
- if (fdc.type == no_fdc) { /* no FC-10 or FC-20 found */
- fdc.type = fdc_probe();
- fdc_reset(); /* update with new knowledge */
- }
- if (fdc.type == no_fdc) {
- fdc_release_irq_and_dma();
- fdc_release_regions();
- TRACE_EXIT -ENXIO;
- }
- if (fdc.type >= i82077) {
- if (fdc_fifo_enable() < 0) {
- TRACE(ft_t_warn, "couldn't enable fdc fifo !");
- } else {
- TRACE(ft_t_flow, "fdc fifo enabled and locked");
- }
- }
- TRACE_EXIT 0;
-}
diff --git a/drivers/char/ftape/lowlevel/fdc-io.h b/drivers/char/ftape/lowlevel/fdc-io.h
deleted file mode 100644
index 7ec3c72178b..00000000000
--- a/drivers/char/ftape/lowlevel/fdc-io.h
+++ /dev/null
@@ -1,252 +0,0 @@
-#ifndef _FDC_IO_H
-#define _FDC_IO_H
-
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-io.h,v $
- * $Revision: 1.3 $
- * $Date: 1997/10/05 19:18:06 $
- *
- * This file contains the declarations for the low level
- * functions that communicate with the floppy disk controller,
- * for the QIC-40/80/3010/3020 floppy-tape driver "ftape" for
- * Linux.
- */
-
-#include <linux/fdreg.h>
-
-#include "../lowlevel/ftape-bsm.h"
-
-#define FDC_SK_BIT (0x20)
-#define FDC_MT_BIT (0x80)
-
-#define FDC_READ (FD_READ & ~(FDC_SK_BIT | FDC_MT_BIT))
-#define FDC_WRITE (FD_WRITE & ~FDC_MT_BIT)
-#define FDC_READ_DELETED (0x4c)
-#define FDC_WRITE_DELETED (0x49)
-#define FDC_VERIFY (0x56)
-#define FDC_READID (0x4a)
-#define FDC_SENSED (0x04)
-#define FDC_SENSEI (FD_SENSEI)
-#define FDC_FORMAT (FD_FORMAT)
-#define FDC_RECAL (FD_RECALIBRATE)
-#define FDC_SEEK (FD_SEEK)
-#define FDC_SPECIFY (FD_SPECIFY)
-#define FDC_RECALIBR (FD_RECALIBRATE)
-#define FDC_VERSION (FD_VERSION)
-#define FDC_PERPEND (FD_PERPENDICULAR)
-#define FDC_DUMPREGS (FD_DUMPREGS)
-#define FDC_LOCK (FD_LOCK)
-#define FDC_UNLOCK (FD_UNLOCK)
-#define FDC_CONFIGURE (FD_CONFIGURE)
-#define FDC_DRIVE_SPEC (0x8e) /* i82078 has this (any others?) */
-#define FDC_PARTID (0x18) /* i82078 has this */
-#define FDC_SAVE (0x2e) /* i82078 has this (any others?) */
-#define FDC_RESTORE (0x4e) /* i82078 has this (any others?) */
-
-#define FDC_STATUS_MASK (STATUS_BUSY | STATUS_DMA | STATUS_DIR | STATUS_READY)
-#define FDC_DATA_READY (STATUS_READY)
-#define FDC_DATA_OUTPUT (STATUS_DIR)
-#define FDC_DATA_READY_MASK (STATUS_READY | STATUS_DIR)
-#define FDC_DATA_OUT_READY (STATUS_READY | STATUS_DIR)
-#define FDC_DATA_IN_READY (STATUS_READY)
-#define FDC_BUSY (STATUS_BUSY)
-#define FDC_CLK48_BIT (0x80)
-#define FDC_SEL3V_BIT (0x40)
-
-#define ST0_INT_MASK (ST0_INTR)
-#define FDC_INT_NORMAL (ST0_INTR & 0x00)
-#define FDC_INT_ABNORMAL (ST0_INTR & 0x40)
-#define FDC_INT_INVALID (ST0_INTR & 0x80)
-#define FDC_INT_READYCH (ST0_INTR & 0xC0)
-#define ST0_SEEK_END (ST0_SE)
-#define ST3_TRACK_0 (ST3_TZ)
-
-#define FDC_RESET_NOT (0x04)
-#define FDC_DMA_MODE (0x08)
-#define FDC_MOTOR_0 (0x10)
-#define FDC_MOTOR_1 (0x20)
-
-typedef struct {
- void (**hook) (void); /* our wedge into the isr */
- enum {
- no_fdc, i8272, i82077, i82077AA, fc10,
- i82078, i82078_1
- } type; /* FDC type */
- unsigned int irq; /* FDC irq nr */
- unsigned int dma; /* FDC dma channel nr */
- __u16 sra; /* Status register A (PS/2 only) */
- __u16 srb; /* Status register B (PS/2 only) */
- __u16 dor; /* Digital output register */
- __u16 tdr; /* Tape Drive Register (82077SL-1 &
- 82078 only) */
- __u16 msr; /* Main Status Register */
- __u16 dsr; /* Datarate Select Register (8207x only) */
- __u16 fifo; /* Data register / Fifo on 8207x */
- __u16 dir; /* Digital Input Register */
- __u16 ccr; /* Configuration Control Register */
- __u16 dor2; /* Alternate dor on MACH-2 controller,
- also used with FC-10, meaning unknown */
-} fdc_config_info;
-
-typedef enum {
- fdc_data_rate_250 = 2,
- fdc_data_rate_300 = 1, /* any fdc in default configuration */
- fdc_data_rate_500 = 0,
- fdc_data_rate_1000 = 3,
- fdc_data_rate_2000 = 1, /* i82078-1: when using Data Rate Table #2 */
-} fdc_data_rate_type;
-
-typedef enum {
- fdc_idle = 0,
- fdc_reading_data = FDC_READ,
- fdc_seeking = FDC_SEEK,
- fdc_writing_data = FDC_WRITE,
- fdc_deleting = FDC_WRITE_DELETED,
- fdc_reading_id = FDC_READID,
- fdc_recalibrating = FDC_RECAL,
- fdc_formatting = FDC_FORMAT,
- fdc_verifying = FDC_VERIFY
-} fdc_mode_enum;
-
-typedef enum {
- waiting = 0,
- reading,
- writing,
- formatting,
- verifying,
- deleting,
- done,
- error,
- mmapped,
-} buffer_state_enum;
-
-typedef struct {
- __u8 *address;
- volatile buffer_state_enum status;
- volatile __u8 *ptr;
- volatile unsigned int bytes;
- volatile unsigned int segment_id;
-
- /* bitmap for remainder of segment not yet handled.
- * one bit set for each bad sector that must be skipped.
- */
- volatile SectorMap bad_sector_map;
-
- /* bitmap with bad data blocks in data buffer.
- * the errors in this map may be retried.
- */
- volatile SectorMap soft_error_map;
-
- /* bitmap with bad data blocks in data buffer
- * the errors in this map may not be retried.
- */
- volatile SectorMap hard_error_map;
-
- /* retry counter for soft errors.
- */
- volatile int retry;
-
- /* sectors to skip on retry ???
- */
- volatile unsigned int skip;
-
- /* nr of data blocks in data buffer
- */
- volatile unsigned int data_offset;
-
- /* offset in segment for first sector to be handled.
- */
- volatile unsigned int sector_offset;
-
- /* size of cluster of good sectors to be handled.
- */
- volatile unsigned int sector_count;
-
- /* size of remaining part of segment to be handled.
- */
- volatile unsigned int remaining;
-
- /* points to next segment (contiguous) to be handled,
- * or is zero if no read-ahead is allowed.
- */
- volatile unsigned int next_segment;
-
- /* flag being set if deleted data was read.
- */
- volatile int deleted;
-
- /* floppy coordinates of first sector in segment */
- volatile __u8 head;
- volatile __u8 cyl;
- volatile __u8 sect;
-
- /* gap to use when formatting */
- __u8 gap3;
- /* flag set when buffer is mmaped */
- int mmapped;
-} buffer_struct;
-
-/*
- * fdc-io.c defined public variables
- */
-extern volatile fdc_mode_enum fdc_mode;
-extern int fdc_setup_error; /* outdated ??? */
-extern wait_queue_head_t ftape_wait_intr;
-extern volatile int ftape_current_cylinder; /* track nr FDC thinks we're on */
-extern volatile __u8 fdc_head; /* FDC head */
-extern volatile __u8 fdc_cyl; /* FDC track */
-extern volatile __u8 fdc_sect; /* FDC sector */
-extern fdc_config_info fdc; /* FDC hardware configuration */
-
-extern unsigned int ft_fdc_base;
-extern unsigned int ft_fdc_irq;
-extern unsigned int ft_fdc_dma;
-extern unsigned int ft_fdc_threshold;
-extern unsigned int ft_fdc_rate_limit;
-extern int ft_probe_fc10;
-extern int ft_mach2;
-/*
- * fdc-io.c defined public functions
- */
-extern void fdc_catch_stray_interrupts(int count);
-extern int fdc_ready_wait(unsigned int timeout);
-extern int fdc_command(const __u8 * cmd_data, int cmd_len);
-extern int fdc_result(__u8 * res_data, int res_len);
-extern int fdc_interrupt_wait(unsigned int time);
-extern int fdc_seek(int track);
-extern int fdc_sense_drive_status(int *st3);
-extern void fdc_motor(int motor);
-extern void fdc_reset(void);
-extern void fdc_disable(void);
-extern int fdc_fifo_threshold(__u8 threshold,
- int *fifo_state, int *lock_state, int *fifo_thr);
-extern void fdc_wait_calibrate(void);
-extern int fdc_sense_interrupt_status(int *st0, int *current_cylinder);
-extern void fdc_save_drive_specs(void);
-extern void fdc_restore_drive_specs(void);
-extern int fdc_set_data_rate(int rate);
-extern void fdc_set_write_precomp(int precomp);
-extern int fdc_release_irq_and_dma(void);
-extern void fdc_release_regions(void);
-extern int fdc_init(void);
-extern int fdc_setup_read_write(buffer_struct * buff, __u8 operation);
-extern int fdc_setup_formatting(buffer_struct * buff);
-#endif
diff --git a/drivers/char/ftape/lowlevel/fdc-isr.c b/drivers/char/ftape/lowlevel/fdc-isr.c
deleted file mode 100644
index ad2bc733ae1..00000000000
--- a/drivers/char/ftape/lowlevel/fdc-isr.c
+++ /dev/null
@@ -1,1170 +0,0 @@
-/*
- * Copyright (C) 1994-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-isr.c,v $
- * $Revision: 1.9 $
- * $Date: 1997/10/17 23:01:53 $
- *
- * This file contains the interrupt service routine and
- * associated code for the QIC-40/80/3010/3020 floppy-tape driver
- * "ftape" for Linux.
- */
-
-#include <asm/io.h>
-#include <asm/dma.h>
-
-#define volatile /* */
-
-#include <linux/ftape.h>
-#include <linux/qic117.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/fdc-isr.h"
-#include "../lowlevel/fdc-io.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-calibr.h"
-#include "../lowlevel/ftape-bsm.h"
-
-/* Global vars.
- */
-volatile int ft_expected_stray_interrupts;
-volatile int ft_interrupt_seen;
-volatile int ft_seek_completed;
-volatile int ft_hide_interrupt;
-/* Local vars.
- */
-typedef enum {
- no_error = 0, id_am_error = 0x01, id_crc_error = 0x02,
- data_am_error = 0x04, data_crc_error = 0x08,
- no_data_error = 0x10, overrun_error = 0x20,
-} error_cause;
-static int stop_read_ahead;
-
-
-static void print_error_cause(int cause)
-{
- TRACE_FUN(ft_t_any);
-
- switch (cause) {
- case no_data_error:
- TRACE(ft_t_noise, "no data error");
- break;
- case id_am_error:
- TRACE(ft_t_noise, "id am error");
- break;
- case id_crc_error:
- TRACE(ft_t_noise, "id crc error");
- break;
- case data_am_error:
- TRACE(ft_t_noise, "data am error");
- break;
- case data_crc_error:
- TRACE(ft_t_noise, "data crc error");
- break;
- case overrun_error:
- TRACE(ft_t_noise, "overrun error");
- break;
- default:;
- }
- TRACE_EXIT;
-}
-
-static char *fdc_mode_txt(fdc_mode_enum mode)
-{
- switch (mode) {
- case fdc_idle:
- return "fdc_idle";
- case fdc_reading_data:
- return "fdc_reading_data";
- case fdc_seeking:
- return "fdc_seeking";
- case fdc_writing_data:
- return "fdc_writing_data";
- case fdc_reading_id:
- return "fdc_reading_id";
- case fdc_recalibrating:
- return "fdc_recalibrating";
- case fdc_formatting:
- return "fdc_formatting";
- case fdc_verifying:
- return "fdc_verifying";
- default:
- return "unknown";
- }
-}
-
-static inline error_cause decode_irq_cause(fdc_mode_enum mode, __u8 st[])
-{
- error_cause cause = no_error;
- TRACE_FUN(ft_t_any);
-
- /* Valid st[], decode cause of interrupt.
- */
- switch (st[0] & ST0_INT_MASK) {
- case FDC_INT_NORMAL:
- TRACE(ft_t_fdc_dma,"normal completion: %s",fdc_mode_txt(mode));
- break;
- case FDC_INT_ABNORMAL:
- TRACE(ft_t_flow, "abnormal completion %s", fdc_mode_txt(mode));
- TRACE(ft_t_fdc_dma, "ST0: 0x%02x, ST1: 0x%02x, ST2: 0x%02x",
- st[0], st[1], st[2]);
- TRACE(ft_t_fdc_dma,
- "C: 0x%02x, H: 0x%02x, R: 0x%02x, N: 0x%02x",
- st[3], st[4], st[5], st[6]);
- if (st[1] & 0x01) {
- if (st[2] & 0x01) {
- cause = data_am_error;
- } else {
- cause = id_am_error;
- }
- } else if (st[1] & 0x20) {
- if (st[2] & 0x20) {
- cause = data_crc_error;
- } else {
- cause = id_crc_error;
- }
- } else if (st[1] & 0x04) {
- cause = no_data_error;
- } else if (st[1] & 0x10) {
- cause = overrun_error;
- }
- print_error_cause(cause);
- break;
- case FDC_INT_INVALID:
- TRACE(ft_t_flow, "invalid completion %s", fdc_mode_txt(mode));
- break;
- case FDC_INT_READYCH:
- if (st[0] & ST0_SEEK_END) {
- TRACE(ft_t_flow, "drive poll completed");
- } else {
- TRACE(ft_t_flow, "ready change %s",fdc_mode_txt(mode));
- }
- break;
- default:
- break;
- }
- TRACE_EXIT cause;
-}
-
-static void update_history(error_cause cause)
-{
- switch (cause) {
- case id_am_error:
- ft_history.id_am_errors++;
- break;
- case id_crc_error:
- ft_history.id_crc_errors++;
- break;
- case data_am_error:
- ft_history.data_am_errors++;
- break;
- case data_crc_error:
- ft_history.data_crc_errors++;
- break;
- case overrun_error:
- ft_history.overrun_errors++;
- break;
- case no_data_error:
- ft_history.no_data_errors++;
- break;
- default:;
- }
-}
-
-static void skip_bad_sector(buffer_struct * buff)
-{
- TRACE_FUN(ft_t_any);
-
- /* Mark sector as soft error and skip it
- */
- if (buff->remaining > 0) {
- ++buff->sector_offset;
- ++buff->data_offset;
- --buff->remaining;
- buff->ptr += FT_SECTOR_SIZE;
- buff->bad_sector_map >>= 1;
- } else {
- /* Hey, what is this????????????? C code: if we shift
- * more than 31 bits, we get no shift. That's bad!!!!!!
- */
- ++buff->sector_offset; /* hack for error maps */
- TRACE(ft_t_warn, "skipping last sector in segment");
- }
- TRACE_EXIT;
-}
-
-static void update_error_maps(buffer_struct * buff, unsigned int error_offset)
-{
- int hard = 0;
- TRACE_FUN(ft_t_any);
-
- if (buff->retry < FT_SOFT_RETRIES) {
- buff->soft_error_map |= (1 << error_offset);
- } else {
- buff->hard_error_map |= (1 << error_offset);
- buff->soft_error_map &= ~buff->hard_error_map;
- buff->retry = -1; /* will be set to 0 in setup_segment */
- hard = 1;
- }
- TRACE(ft_t_noise, "sector %d : %s error\n"
- KERN_INFO "hard map: 0x%08lx\n"
- KERN_INFO "soft map: 0x%08lx",
- FT_SECTOR(error_offset), hard ? "hard" : "soft",
- (long) buff->hard_error_map, (long) buff->soft_error_map);
- TRACE_EXIT;
-}
-
-static void print_progress(buffer_struct *buff, error_cause cause)
-{
- TRACE_FUN(ft_t_any);
-
- switch (cause) {
- case no_error:
- TRACE(ft_t_flow,"%d Sector(s) transferred", buff->sector_count);
- break;
- case no_data_error:
- TRACE(ft_t_flow, "Sector %d not found",
- FT_SECTOR(buff->sector_offset));
- break;
- case overrun_error:
- /* got an overrun error on the first byte, must be a
- * hardware problem
- */
- TRACE(ft_t_bug,
- "Unexpected error: failing DMA or FDC controller ?");
- break;
- case data_crc_error:
- TRACE(ft_t_flow, "Error in sector %d",
- FT_SECTOR(buff->sector_offset - 1));
- break;
- case id_crc_error:
- case id_am_error:
- case data_am_error:
- TRACE(ft_t_flow, "Error in sector %d",
- FT_SECTOR(buff->sector_offset));
- break;
- default:
- TRACE(ft_t_flow, "Unexpected error at sector %d",
- FT_SECTOR(buff->sector_offset));
- break;
- }
- TRACE_EXIT;
-}
-
-/*
- * Error cause: Amount xferred: Action:
- *
- * id_am_error 0 mark bad and skip
- * id_crc_error 0 mark bad and skip
- * data_am_error 0 mark bad and skip
- * data_crc_error % 1024 mark bad and skip
- * no_data_error 0 retry on write
- * mark bad and skip on read
- * overrun_error [ 0..all-1 ] mark bad and skip
- * no_error all continue
- */
-
-/* the arg `sector' is returned by the fdc and tells us at which sector we
- * are positioned at (relative to starting sector of segment)
- */
-static void determine_verify_progress(buffer_struct *buff,
- error_cause cause,
- __u8 sector)
-{
- TRACE_FUN(ft_t_any);
-
- if (cause == no_error && sector == 1) {
- buff->sector_offset = FT_SECTORS_PER_SEGMENT;
- buff->remaining = 0;
- if (TRACE_LEVEL >= ft_t_flow) {
- print_progress(buff, cause);
- }
- } else {
- buff->sector_offset = sector - buff->sect;
- buff->remaining = FT_SECTORS_PER_SEGMENT - buff->sector_offset;
- TRACE(ft_t_noise, "%ssector offset: 0x%04x",
- (cause == no_error) ? "unexpected " : "",
- buff->sector_offset);
- switch (cause) {
- case overrun_error:
- break;
-#if 0
- case no_data_error:
- buff->retry = FT_SOFT_RETRIES;
- if (buff->hard_error_map &&
- buff->sector_offset > 1 &&
- (buff->hard_error_map &
- (1 << (buff->sector_offset-2)))) {
- buff->retry --;
- }
- break;
-#endif
- default:
- buff->retry = FT_SOFT_RETRIES;
- break;
- }
- if (TRACE_LEVEL >= ft_t_flow) {
- print_progress(buff, cause);
- }
- /* Sector_offset points to the problem area Now adjust
- * sector_offset so it always points one past he failing
- * sector. I.e. skip the bad sector.
- */
- ++buff->sector_offset;
- --buff->remaining;
- update_error_maps(buff, buff->sector_offset - 1);
- }
- TRACE_EXIT;
-}
-
-static void determine_progress(buffer_struct *buff,
- error_cause cause,
- __u8 sector)
-{
- unsigned int dma_residue;
- TRACE_FUN(ft_t_any);
-
- /* Using less preferred order of disable_dma and
- * get_dma_residue because this seems to fail on at least one
- * system if reversed!
- */
- dma_residue = get_dma_residue(fdc.dma);
- disable_dma(fdc.dma);
- if (cause != no_error || dma_residue != 0) {
- TRACE(ft_t_noise, "%sDMA residue: 0x%04x",
- (cause == no_error) ? "unexpected " : "",
- dma_residue);
- /* adjust to actual value: */
- if (dma_residue == 0) {
- /* this happens sometimes with overrun errors.
- * I don't know whether we could ignore the
- * overrun error. Play save.
- */
- buff->sector_count --;
- } else {
- buff->sector_count -= ((dma_residue +
- (FT_SECTOR_SIZE - 1)) /
- FT_SECTOR_SIZE);
- }
- }
- /* Update var's influenced by the DMA operation.
- */
- if (buff->sector_count > 0) {
- buff->sector_offset += buff->sector_count;
- buff->data_offset += buff->sector_count;
- buff->ptr += (buff->sector_count *
- FT_SECTOR_SIZE);
- buff->remaining -= buff->sector_count;
- buff->bad_sector_map >>= buff->sector_count;
- }
- if (TRACE_LEVEL >= ft_t_flow) {
- print_progress(buff, cause);
- }
- if (cause != no_error) {
- if (buff->remaining == 0) {
- TRACE(ft_t_warn, "foo?\n"
- KERN_INFO "count : %d\n"
- KERN_INFO "offset: %d\n"
- KERN_INFO "soft : %08x\n"
- KERN_INFO "hard : %08x",
- buff->sector_count,
- buff->sector_offset,
- buff->soft_error_map,
- buff->hard_error_map);
- }
- /* Sector_offset points to the problem area, except if we got
- * a data_crc_error. In that case it points one past the
- * failing sector.
- *
- * Now adjust sector_offset so it always points one past he
- * failing sector. I.e. skip the bad sector.
- */
- if (cause != data_crc_error) {
- skip_bad_sector(buff);
- }
- update_error_maps(buff, buff->sector_offset - 1);
- }
- TRACE_EXIT;
-}
-
-static int calc_steps(int cmd)
-{
- if (ftape_current_cylinder > cmd) {
- return ftape_current_cylinder - cmd;
- } else {
- return ftape_current_cylinder + cmd;
- }
-}
-
-static void pause_tape(int retry, int mode)
-{
- int result;
- __u8 out[3] = {FDC_SEEK, ft_drive_sel, 0};
- TRACE_FUN(ft_t_any);
-
- /* We'll use a raw seek command to get the tape to rewind and
- * stop for a retry.
- */
- ++ft_history.rewinds;
- if (qic117_cmds[ftape_current_command].non_intr) {
- TRACE(ft_t_warn, "motion command may be issued too soon");
- }
- if (retry && (mode == fdc_reading_data ||
- mode == fdc_reading_id ||
- mode == fdc_verifying)) {
- ftape_current_command = QIC_MICRO_STEP_PAUSE;
- ftape_might_be_off_track = 1;
- } else {
- ftape_current_command = QIC_PAUSE;
- }
- out[2] = calc_steps(ftape_current_command);
- result = fdc_command(out, 3); /* issue QIC_117 command */
- ftape_current_cylinder = out[ 2];
- if (result < 0) {
- TRACE(ft_t_noise, "qic-pause failed, status = %d", result);
- } else {
- ft_location.known = 0;
- ft_runner_status = idle;
- ft_hide_interrupt = 1;
- ftape_tape_running = 0;
- }
- TRACE_EXIT;
-}
-
-static void continue_xfer(buffer_struct *buff,
- fdc_mode_enum mode,
- unsigned int skip)
-{
- int write = 0;
- TRACE_FUN(ft_t_any);
-
- if (mode == fdc_writing_data || mode == fdc_deleting) {
- write = 1;
- }
- /* This part can be removed if it never happens
- */
- if (skip > 0 &&
- (ft_runner_status != running ||
- (write && (buff->status != writing)) ||
- (!write && (buff->status != reading &&
- buff->status != verifying)))) {
- TRACE(ft_t_err, "unexpected runner/buffer state %d/%d",
- ft_runner_status, buff->status);
- buff->status = error;
- /* finish this buffer: */
- (void)ftape_next_buffer(ft_queue_head);
- ft_runner_status = aborting;
- fdc_mode = fdc_idle;
- } else if (buff->remaining > 0 && ftape_calc_next_cluster(buff) > 0) {
- /* still sectors left in current segment, continue
- * with this segment
- */
- if (fdc_setup_read_write(buff, mode) < 0) {
- /* failed, abort operation
- */
- buff->bytes = buff->ptr - buff->address;
- buff->status = error;
- /* finish this buffer: */
- (void)ftape_next_buffer(ft_queue_head);
- ft_runner_status = aborting;
- fdc_mode = fdc_idle;
- }
- } else {
- /* current segment completed
- */
- unsigned int last_segment = buff->segment_id;
- int eot = ((last_segment + 1) % ft_segments_per_track) == 0;
- unsigned int next = buff->next_segment; /* 0 means stop ! */
-
- buff->bytes = buff->ptr - buff->address;
- buff->status = done;
- buff = ftape_next_buffer(ft_queue_head);
- if (eot) {
- /* finished last segment on current track,
- * can't continue
- */
- ft_runner_status = logical_eot;
- fdc_mode = fdc_idle;
- TRACE_EXIT;
- }
- if (next <= 0) {
- /* don't continue with next segment
- */
- TRACE(ft_t_noise, "no %s allowed, stopping tape",
- (write) ? "write next" : "read ahead");
- pause_tape(0, mode);
- ft_runner_status = idle; /* not quite true until
- * next irq
- */
- TRACE_EXIT;
- }
- /* continue with next segment
- */
- if (buff->status != waiting) {
- TRACE(ft_t_noise, "all input buffers %s, pausing tape",
- (write) ? "empty" : "full");
- pause_tape(0, mode);
- ft_runner_status = idle; /* not quite true until
- * next irq
- */
- TRACE_EXIT;
- }
- if (write && next != buff->segment_id) {
- TRACE(ft_t_noise,
- "segments out of order, aborting write");
- ft_runner_status = do_abort;
- fdc_mode = fdc_idle;
- TRACE_EXIT;
- }
- ftape_setup_new_segment(buff, next, 0);
- if (stop_read_ahead) {
- buff->next_segment = 0;
- stop_read_ahead = 0;
- }
- if (ftape_calc_next_cluster(buff) == 0 ||
- fdc_setup_read_write(buff, mode) != 0) {
- TRACE(ft_t_err, "couldn't start %s-ahead",
- write ? "write" : "read");
- ft_runner_status = do_abort;
- fdc_mode = fdc_idle;
- } else {
- /* keep on going */
- switch (ft_driver_state) {
- case reading: buff->status = reading; break;
- case verifying: buff->status = verifying; break;
- case writing: buff->status = writing; break;
- case deleting: buff->status = deleting; break;
- default:
- TRACE(ft_t_err,
- "BUG: ft_driver_state %d should be one out of "
- "{reading, writing, verifying, deleting}",
- ft_driver_state);
- buff->status = write ? writing : reading;
- break;
- }
- }
- }
- TRACE_EXIT;
-}
-
-static void retry_sector(buffer_struct *buff,
- int mode,
- unsigned int skip)
-{
- TRACE_FUN(ft_t_any);
-
- TRACE(ft_t_noise, "%s error, will retry",
- (mode == fdc_writing_data || mode == fdc_deleting) ? "write" : "read");
- pause_tape(1, mode);
- ft_runner_status = aborting;
- buff->status = error;
- buff->skip = skip;
- TRACE_EXIT;
-}
-
-static unsigned int find_resume_point(buffer_struct *buff)
-{
- int i = 0;
- SectorMap mask;
- SectorMap map;
- TRACE_FUN(ft_t_any);
-
- /* This function is to be called after all variables have been
- * updated to point past the failing sector.
- * If there are any soft errors before the failing sector,
- * find the first soft error and return the sector offset.
- * Otherwise find the last hard error.
- * Note: there should always be at least one hard or soft error !
- */
- if (buff->sector_offset < 1 || buff->sector_offset > 32) {
- TRACE(ft_t_bug, "BUG: sector_offset = %d",
- buff->sector_offset);
- TRACE_EXIT 0;
- }
- if (buff->sector_offset >= 32) { /* C-limitation on shift ! */
- mask = 0xffffffff;
- } else {
- mask = (1 << buff->sector_offset) - 1;
- }
- map = buff->soft_error_map & mask;
- if (map) {
- while ((map & (1 << i)) == 0) {
- ++i;
- }
- TRACE(ft_t_noise, "at sector %d", FT_SECTOR(i));
- } else {
- map = buff->hard_error_map & mask;
- i = buff->sector_offset - 1;
- if (map) {
- while ((map & (1 << i)) == 0) {
- --i;
- }
- TRACE(ft_t_noise, "after sector %d", FT_SECTOR(i));
- ++i; /* first sector after last hard error */
- } else {
- TRACE(ft_t_bug, "BUG: no soft or hard errors");
- }
- }
- TRACE_EXIT i;
-}
-
-/* check possible dma residue when formatting, update position record in
- * buffer struct. This is, of course, modelled after determine_progress(), but
- * we don't need to set up for retries because the format process cannot be
- * interrupted (except at the end of the tape track).
- */
-static int determine_fmt_progress(buffer_struct *buff, error_cause cause)
-{
- unsigned int dma_residue;
- TRACE_FUN(ft_t_any);
-
- /* Using less preferred order of disable_dma and
- * get_dma_residue because this seems to fail on at least one
- * system if reversed!
- */
- dma_residue = get_dma_residue(fdc.dma);
- disable_dma(fdc.dma);
- if (cause != no_error || dma_residue != 0) {
- TRACE(ft_t_info, "DMA residue = 0x%04x", dma_residue);
- fdc_mode = fdc_idle;
- switch(cause) {
- case no_error:
- ft_runner_status = aborting;
- buff->status = idle;
- break;
- case overrun_error:
- /* got an overrun error on the first byte, must be a
- * hardware problem
- */
- TRACE(ft_t_bug,
- "Unexpected error: failing DMA controller ?");
- ft_runner_status = do_abort;
- buff->status = error;
- break;
- default:
- TRACE(ft_t_noise, "Unexpected error at segment %d",
- buff->segment_id);
- ft_runner_status = do_abort;
- buff->status = error;
- break;
- }
- TRACE_EXIT -EIO; /* can only retry entire track in format mode
- */
- }
- /* Update var's influenced by the DMA operation.
- */
- buff->ptr += FT_SECTORS_PER_SEGMENT * 4;
- buff->bytes -= FT_SECTORS_PER_SEGMENT * 4;
- buff->remaining -= FT_SECTORS_PER_SEGMENT;
- buff->segment_id ++; /* done with segment */
- TRACE_EXIT 0;
-}
-
-/*
- * Continue formatting, switch buffers if there is no data left in
- * current buffer. This is, of course, modelled after
- * continue_xfer(), but we don't need to set up for retries because
- * the format process cannot be interrupted (except at the end of the
- * tape track).
- */
-static void continue_formatting(buffer_struct *buff)
-{
- TRACE_FUN(ft_t_any);
-
- if (buff->remaining <= 0) { /* no space left in dma buffer */
- unsigned int next = buff->next_segment;
-
- if (next == 0) { /* end of tape track */
- buff->status = done;
- ft_runner_status = logical_eot;
- fdc_mode = fdc_idle;
- TRACE(ft_t_noise, "Done formatting track %d",
- ft_location.track);
- TRACE_EXIT;
- }
- /*
- * switch to next buffer!
- */
- buff->status = done;
- buff = ftape_next_buffer(ft_queue_head);
-
- if (buff->status != waiting || next != buff->segment_id) {
- goto format_setup_error;
- }
- }
- if (fdc_setup_formatting(buff) < 0) {
- goto format_setup_error;
- }
- buff->status = formatting;
- TRACE(ft_t_fdc_dma, "Formatting segment %d on track %d",
- buff->segment_id, ft_location.track);
- TRACE_EXIT;
- format_setup_error:
- ft_runner_status = do_abort;
- fdc_mode = fdc_idle;
- buff->status = error;
- TRACE(ft_t_err, "Error setting up for segment %d on track %d",
- buff->segment_id, ft_location.track);
- TRACE_EXIT;
-
-}
-
-/* this handles writing, read id, reading and formatting
- */
-static void handle_fdc_busy(buffer_struct *buff)
-{
- static int no_data_error_count;
- int retry = 0;
- error_cause cause;
- __u8 in[7];
- int skip;
- fdc_mode_enum fmode = fdc_mode;
- TRACE_FUN(ft_t_any);
-
- if (fdc_result(in, 7) < 0) { /* better get it fast ! */
- TRACE(ft_t_err,
- "Probably fatal error during FDC Result Phase\n"
- KERN_INFO
- "drive may hang until (power on) reset :-(");
- /* what to do next ????
- */
- TRACE_EXIT;
- }
- cause = decode_irq_cause(fdc_mode, in);
-#ifdef TESTING
- { int i;
- for (i = 0; i < (int)ft_nr_buffers; ++i)
- TRACE(ft_t_any, "buffer[%d] status: %d, segment_id: %d",
- i, ft_buffer[i]->status, ft_buffer[i]->segment_id);
- }
-#endif
- if (fmode == fdc_reading_data && ft_driver_state == verifying) {
- fmode = fdc_verifying;
- }
- switch (fmode) {
- case fdc_verifying:
- if (ft_runner_status == aborting ||
- ft_runner_status == do_abort) {
- TRACE(ft_t_noise,"aborting %s",fdc_mode_txt(fdc_mode));
- break;
- }
- if (buff->retry > 0) {
- TRACE(ft_t_flow, "this is retry nr %d", buff->retry);
- }
- switch (cause) {
- case no_error:
- no_data_error_count = 0;
- determine_verify_progress(buff, cause, in[5]);
- if (in[2] & 0x40) {
- /* This should not happen when verifying
- */
- TRACE(ft_t_warn,
- "deleted data in segment %d/%d",
- buff->segment_id,
- FT_SECTOR(buff->sector_offset - 1));
- buff->remaining = 0; /* abort transfer */
- buff->hard_error_map = EMPTY_SEGMENT;
- skip = 1;
- } else {
- skip = 0;
- }
- continue_xfer(buff, fdc_mode, skip);
- break;
- case no_data_error:
- no_data_error_count ++;
- case overrun_error:
- retry ++;
- case id_am_error:
- case id_crc_error:
- case data_am_error:
- case data_crc_error:
- determine_verify_progress(buff, cause, in[5]);
- if (cause == no_data_error) {
- if (no_data_error_count >= 2) {
- TRACE(ft_t_warn,
- "retrying because of successive "
- "no data errors");
- no_data_error_count = 0;
- } else {
- retry --;
- }
- } else {
- no_data_error_count = 0;
- }
- if (retry) {
- skip = find_resume_point(buff);
- } else {
- skip = buff->sector_offset;
- }
- if (retry && skip < 32) {
- retry_sector(buff, fdc_mode, skip);
- } else {
- continue_xfer(buff, fdc_mode, skip);
- }
- update_history(cause);
- break;
- default:
- /* Don't know why this could happen
- * but find out.
- */
- determine_verify_progress(buff, cause, in[5]);
- retry_sector(buff, fdc_mode, 0);
- TRACE(ft_t_err, "Error: unexpected error");
- break;
- }
- break;
- case fdc_reading_data:
-#ifdef TESTING
- /* I'm sorry, but: NOBODY ever used this trace
- * messages for ages. I guess that Bas was the last person
- * that ever really used this (thank you, between the lines)
- */
- if (cause == no_error) {
- TRACE(ft_t_flow,"reading segment %d",buff->segment_id);
- } else {
- TRACE(ft_t_noise, "error reading segment %d",
- buff->segment_id);
- TRACE(ft_t_noise, "\n"
- KERN_INFO
- "IRQ:C: 0x%02x, H: 0x%02x, R: 0x%02x, N: 0x%02x\n"
- KERN_INFO
- "BUF:C: 0x%02x, H: 0x%02x, R: 0x%02x",
- in[3], in[4], in[5], in[6],
- buff->cyl, buff->head, buff->sect);
- }
-#endif
- if (ft_runner_status == aborting ||
- ft_runner_status == do_abort) {
- TRACE(ft_t_noise,"aborting %s",fdc_mode_txt(fdc_mode));
- break;
- }
- if (buff->bad_sector_map == FAKE_SEGMENT) {
- /* This condition occurs when reading a `fake'
- * sector that's not accessible. Doesn't
- * really matter as we would have ignored it
- * anyway !
- *
- * Chance is that we're past the next segment
- * now, so the next operation may fail and
- * result in a retry.
- */
- buff->remaining = 0; /* skip failing sector */
- /* buff->ptr = buff->address; */
- /* fake success: */
- continue_xfer(buff, fdc_mode, 1);
- /* trace calls are expensive: place them AFTER
- * the real stuff has been done.
- *
- */
- TRACE(ft_t_noise, "skipping empty segment %d (read), size? %d",
- buff->segment_id, buff->ptr - buff->address);
- TRACE_EXIT;
- }
- if (buff->retry > 0) {
- TRACE(ft_t_flow, "this is retry nr %d", buff->retry);
- }
- switch (cause) {
- case no_error:
- determine_progress(buff, cause, in[5]);
- if (in[2] & 0x40) {
- /* Handle deleted data in header segments.
- * Skip segment and force read-ahead.
- */
- TRACE(ft_t_warn,
- "deleted data in segment %d/%d",
- buff->segment_id,
- FT_SECTOR(buff->sector_offset - 1));
- buff->deleted = 1;
- buff->remaining = 0;/*abort transfer */
- buff->soft_error_map |=
- (-1L << buff->sector_offset);
- if (buff->segment_id == 0) {
- /* stop on next segment */
- stop_read_ahead = 1;
- }
- /* force read-ahead: */
- buff->next_segment =
- buff->segment_id + 1;
- skip = (FT_SECTORS_PER_SEGMENT -
- buff->sector_offset);
- } else {
- skip = 0;
- }
- continue_xfer(buff, fdc_mode, skip);
- break;
- case no_data_error:
- /* Tape started too far ahead of or behind the
- * right sector. This may also happen in the
- * middle of a segment !
- *
- * Handle no-data as soft error. If next
- * sector fails too, a retry (with needed
- * reposition) will follow.
- */
- retry ++;
- case id_am_error:
- case id_crc_error:
- case data_am_error:
- case data_crc_error:
- case overrun_error:
- retry += (buff->soft_error_map != 0 ||
- buff->hard_error_map != 0);
- determine_progress(buff, cause, in[5]);
-#if 1 || defined(TESTING)
- if (cause == overrun_error) retry ++;
-#endif
- if (retry) {
- skip = find_resume_point(buff);
- } else {
- skip = buff->sector_offset;
- }
- /* Try to resume with next sector on single
- * errors (let ecc correct it), but retry on
- * no_data (we'll be past the target when we
- * get here so we cannot retry) or on
- * multiple errors (reduce chance on ecc
- * failure).
- */
- /* cH: 23/02/97: if the last sector in the
- * segment was a hard error, then there is
- * no sense in a retry. This occasion seldom
- * occurs but ... @:`@%&$
- */
- if (retry && skip < 32) {
- retry_sector(buff, fdc_mode, skip);
- } else {
- continue_xfer(buff, fdc_mode, skip);
- }
- update_history(cause);
- break;
- default:
- /* Don't know why this could happen
- * but find out.
- */
- determine_progress(buff, cause, in[5]);
- retry_sector(buff, fdc_mode, 0);
- TRACE(ft_t_err, "Error: unexpected error");
- break;
- }
- break;
- case fdc_reading_id:
- if (cause == no_error) {
- fdc_cyl = in[3];
- fdc_head = in[4];
- fdc_sect = in[5];
- TRACE(ft_t_fdc_dma,
- "id read: C: 0x%02x, H: 0x%02x, R: 0x%02x",
- fdc_cyl, fdc_head, fdc_sect);
- } else { /* no valid information, use invalid sector */
- fdc_cyl = fdc_head = fdc_sect = 0;
- TRACE(ft_t_flow, "Didn't find valid sector Id");
- }
- fdc_mode = fdc_idle;
- break;
- case fdc_deleting:
- case fdc_writing_data:
-#ifdef TESTING
- if (cause == no_error) {
- TRACE(ft_t_flow, "writing segment %d", buff->segment_id);
- } else {
- TRACE(ft_t_noise, "error writing segment %d",
- buff->segment_id);
- }
-#endif
- if (ft_runner_status == aborting ||
- ft_runner_status == do_abort) {
- TRACE(ft_t_flow, "aborting %s",fdc_mode_txt(fdc_mode));
- break;
- }
- if (buff->retry > 0) {
- TRACE(ft_t_flow, "this is retry nr %d", buff->retry);
- }
- if (buff->bad_sector_map == FAKE_SEGMENT) {
- /* This condition occurs when trying to write to a
- * `fake' sector that's not accessible. Doesn't really
- * matter as it isn't used anyway ! Might be located
- * at wrong segment, then we'll fail on the next
- * segment.
- */
- TRACE(ft_t_noise, "skipping empty segment (write)");
- buff->remaining = 0; /* skip failing sector */
- /* fake success: */
- continue_xfer(buff, fdc_mode, 1);
- break;
- }
- switch (cause) {
- case no_error:
- determine_progress(buff, cause, in[5]);
- continue_xfer(buff, fdc_mode, 0);
- break;
- case no_data_error:
- case id_am_error:
- case id_crc_error:
- case data_am_error:
- case overrun_error:
- update_history(cause);
- determine_progress(buff, cause, in[5]);
- skip = find_resume_point(buff);
- retry_sector(buff, fdc_mode, skip);
- break;
- default:
- if (in[1] & 0x02) {
- TRACE(ft_t_err, "media not writable");
- } else {
- TRACE(ft_t_bug, "unforeseen write error");
- }
- fdc_mode = fdc_idle;
- break;
- }
- break; /* fdc_deleting || fdc_writing_data */
- case fdc_formatting:
- /* The interrupt comes after formatting a segment. We then
- * have to set up QUICKLY for the next segment. But
- * afterwards, there is plenty of time.
- */
- switch (cause) {
- case no_error:
- /* would like to keep most of the formatting stuff
- * outside the isr code, but timing is too critical
- */
- if (determine_fmt_progress(buff, cause) >= 0) {
- continue_formatting(buff);
- }
- break;
- case no_data_error:
- case id_am_error:
- case id_crc_error:
- case data_am_error:
- case overrun_error:
- default:
- determine_fmt_progress(buff, cause);
- update_history(cause);
- if (in[1] & 0x02) {
- TRACE(ft_t_err, "media not writable");
- } else {
- TRACE(ft_t_bug, "unforeseen write error");
- }
- break;
- } /* cause */
- break;
- default:
- TRACE(ft_t_warn, "Warning: unexpected irq during: %s",
- fdc_mode_txt(fdc_mode));
- fdc_mode = fdc_idle;
- break;
- }
- TRACE_EXIT;
-}
-
-/* FDC interrupt service routine.
- */
-void fdc_isr(void)
-{
- static int isr_active;
-#ifdef TESTING
- unsigned int t0 = ftape_timestamp();
-#endif
- TRACE_FUN(ft_t_any);
-
- if (isr_active++) {
- --isr_active;
- TRACE(ft_t_bug, "BUG: nested interrupt, not good !");
- *fdc.hook = fdc_isr; /* hook our handler into the fdc
- * code again
- */
- TRACE_EXIT;
- }
- sti();
- if (inb_p(fdc.msr) & FDC_BUSY) { /* Entering Result Phase */
- ft_hide_interrupt = 0;
- handle_fdc_busy(ftape_get_buffer(ft_queue_head));
- if (ft_runner_status == do_abort) {
- /* cease operation, remember tape position
- */
- TRACE(ft_t_flow, "runner aborting");
- ft_runner_status = aborting;
- ++ft_expected_stray_interrupts;
- }
- } else { /* !FDC_BUSY */
- /* clear interrupt, cause should be gotten by issuing
- * a Sense Interrupt Status command.
- */
- if (fdc_mode == fdc_recalibrating || fdc_mode == fdc_seeking) {
- if (ft_hide_interrupt) {
- int st0;
- int pcn;
-
- if (fdc_sense_interrupt_status(&st0, &pcn) < 0)
- TRACE(ft_t_err,
- "sense interrupt status failed");
- ftape_current_cylinder = pcn;
- TRACE(ft_t_flow, "handled hidden interrupt");
- }
- ft_seek_completed = 1;
- fdc_mode = fdc_idle;
- } else if (!waitqueue_active(&ftape_wait_intr)) {
- if (ft_expected_stray_interrupts == 0) {
- TRACE(ft_t_warn, "unexpected stray interrupt");
- } else {
- TRACE(ft_t_flow, "expected stray interrupt");
- --ft_expected_stray_interrupts;
- }
- } else {
- if (fdc_mode == fdc_reading_data ||
- fdc_mode == fdc_verifying ||
- fdc_mode == fdc_writing_data ||
- fdc_mode == fdc_deleting ||
- fdc_mode == fdc_formatting ||
- fdc_mode == fdc_reading_id) {
- if (inb_p(fdc.msr) & FDC_BUSY) {
- TRACE(ft_t_bug,
- "***** FDC failure, busy too late");
- } else {
- TRACE(ft_t_bug,
- "***** FDC failure, no busy");
- }
- } else {
- TRACE(ft_t_fdc_dma, "awaited stray interrupt");
- }
- }
- ft_hide_interrupt = 0;
- }
- /* Handle sleep code.
- */
- if (!ft_hide_interrupt) {
- ft_interrupt_seen ++;
- if (waitqueue_active(&ftape_wait_intr)) {
- wake_up_interruptible(&ftape_wait_intr);
- }
- } else {
- TRACE(ft_t_flow, "hiding interrupt while %s",
- waitqueue_active(&ftape_wait_intr) ? "waiting":"active");
- }
-#ifdef TESTING
- t0 = ftape_timediff(t0, ftape_timestamp());
- if (t0 >= 1000) {
- /* only tell us about long calls */
- TRACE(ft_t_noise, "isr() duration: %5d usec", t0);
- }
-#endif
- *fdc.hook = fdc_isr; /* hook our handler into the fdc code again */
- --isr_active;
- TRACE_EXIT;
-}
diff --git a/drivers/char/ftape/lowlevel/fdc-isr.h b/drivers/char/ftape/lowlevel/fdc-isr.h
deleted file mode 100644
index 065aa978942..00000000000
--- a/drivers/char/ftape/lowlevel/fdc-isr.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef _FDC_ISR_H
-#define _FDC_ISR_H
-
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-isr.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:07 $
- *
- * This file declares the global variables necessary to
- * synchronize the interrupt service routine (isr) with the
- * remainder of the QIC-40/80/3010/3020 floppy-tape driver
- * "ftape" for Linux.
- */
-
-/*
- * fdc-isr.c defined public variables
- */
-extern volatile int ft_expected_stray_interrupts; /* masks stray interrupts */
-extern volatile int ft_seek_completed; /* flag set by isr */
-extern volatile int ft_interrupt_seen; /* flag set by isr */
-extern volatile int ft_hide_interrupt; /* flag set by isr */
-
-/*
- * fdc-io.c defined public functions
- */
-extern void fdc_isr(void);
-
-/*
- * A kernel hook that steals one interrupt from the floppy
- * driver (Should be fixed when the new fdc driver gets ready)
- * See the linux kernel source files:
- * drivers/block/floppy.c & drivers/block/blk.h
- * for the details.
- */
-extern void (*do_floppy) (void);
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-bsm.c b/drivers/char/ftape/lowlevel/ftape-bsm.c
deleted file mode 100644
index d1a301cc344..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-bsm.c
+++ /dev/null
@@ -1,491 +0,0 @@
-/*
- * Copyright (C) 1994-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-bsm.c,v $
- * $Revision: 1.3 $
- * $Date: 1997/10/05 19:15:15 $
- *
- * This file contains the bad-sector map handling code for
- * the QIC-117 floppy tape driver for Linux.
- * QIC-40, QIC-80, QIC-3010 and QIC-3020 maps are implemented.
- */
-
-#include <linux/string.h>
-
-#include <linux/ftape.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-bsm.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-rw.h"
-
-/* Global vars.
- */
-
-/* Local vars.
- */
-static __u8 *bad_sector_map;
-static SectorCount *bsm_hash_ptr;
-
-typedef enum {
- forward, backward
-} mode_type;
-
-#if 0
-static void ftape_put_bad_sector_entry(int segment_id, SectorMap new_map);
-#endif
-
-#if 0
-/* fix_tape converts a normal QIC-80 tape into a 'wide' tape.
- * For testing purposes only !
- */
-void fix_tape(__u8 * buffer, ft_format_type new_code)
-{
- static __u8 list[BAD_SECTOR_MAP_SIZE];
- SectorMap *src_ptr = (SectorMap *) list;
- __u8 *dst_ptr = bad_sector_map;
- SectorMap map;
- unsigned int sector = 1;
- int i;
-
- if (format_code != fmt_var && format_code != fmt_big) {
- memcpy(list, bad_sector_map, sizeof(list));
- memset(bad_sector_map, 0, sizeof(bad_sector_map));
- while ((__u8 *) src_ptr - list < sizeof(list)) {
- map = *src_ptr++;
- if (map == EMPTY_SEGMENT) {
- *(SectorMap *) dst_ptr = 0x800000 + sector;
- dst_ptr += 3;
- sector += SECTORS_PER_SEGMENT;
- } else {
- for (i = 0; i < SECTORS_PER_SEGMENT; ++i) {
- if (map & 1) {
- *(SewctorMap *) dst_ptr = sector;
- dst_ptr += 3;
- }
- map >>= 1;
- ++sector;
- }
- }
- }
- }
- bad_sector_map_changed = 1;
- *(buffer + 4) = new_code; /* put new format code */
- if (format_code != fmt_var && new_code == fmt_big) {
- PUT4(buffer, FT_6_HSEG_1, (__u32)GET2(buffer, 6));
- PUT4(buffer, FT_6_HSEG_2, (__u32)GET2(buffer, 8));
- PUT4(buffer, FT_6_FRST_SEG, (__u32)GET2(buffer, 10));
- PUT4(buffer, FT_6_LAST_SEG, (__u32)GET2(buffer, 12));
- memset(buffer+6, '\0', 8);
- }
- format_code = new_code;
-}
-
-#endif
-
-/* given buffer that contains a header segment, find the end of
- * of the bsm list
- */
-__u8 * ftape_find_end_of_bsm_list(__u8 * address)
-{
- __u8 *ptr = address + FT_HEADER_END; /* start of bsm list */
- __u8 *limit = address + FT_SEGMENT_SIZE;
- while (ptr + 2 < limit) {
- if (ptr[0] || ptr[1] || ptr[2]) {
- ptr += 3;
- } else {
- return ptr;
- }
- }
- return NULL;
-}
-
-static inline void put_sector(SectorCount *ptr, unsigned int sector)
-{
- ptr->bytes[0] = sector & 0xff;
- sector >>= 8;
- ptr->bytes[1] = sector & 0xff;
- sector >>= 8;
- ptr->bytes[2] = sector & 0xff;
-}
-
-static inline unsigned int get_sector(SectorCount *ptr)
-{
-#if 1
- unsigned int sector;
-
- sector = ptr->bytes[0];
- sector += ptr->bytes[1] << 8;
- sector += ptr->bytes[2] << 16;
-
- return sector;
-#else
- /* GET4 gets the next four bytes in Intel little endian order
- * and converts them to host byte order and handles unaligned
- * access.
- */
- return (GET4(ptr, 0) & 0x00ffffff); /* back to host byte order */
-#endif
-}
-
-static void bsm_debug_fake(void)
-{
- /* for testing of bad sector handling at end of tape
- */
-#if 0
- ftape_put_bad_sector_entry(segments_per_track * tracks_per_tape - 3,
- 0x000003e0;
- ftape_put_bad_sector_entry(segments_per_track * tracks_per_tape - 2,
- 0xff3fffff;
- ftape_put_bad_sector_entry(segments_per_track * tracks_per_tape - 1,
- 0xffffe000;
-#endif
- /* Enable to test bad sector handling
- */
-#if 0
- ftape_put_bad_sector_entry(30, 0xfffffffe)
- ftape_put_bad_sector_entry(32, 0x7fffffff);
- ftape_put_bad_sector_entry(34, 0xfffeffff);
- ftape_put_bad_sector_entry(36, 0x55555555);
- ftape_put_bad_sector_entry(38, 0xffffffff);
- ftape_put_bad_sector_entry(50, 0xffff0000);
- ftape_put_bad_sector_entry(51, 0xffffffff);
- ftape_put_bad_sector_entry(52, 0xffffffff);
- ftape_put_bad_sector_entry(53, 0x0000ffff);
-#endif
- /* Enable when testing multiple volume tar dumps.
- */
-#if 0
- {
- int i;
-
- for (i = ft_first_data_segment;
- i <= ft_last_data_segment - 7; ++i) {
- ftape_put_bad_sector_entry(i, EMPTY_SEGMENT);
- }
- }
-#endif
- /* Enable when testing bit positions in *_error_map
- */
-#if 0
- {
- int i;
-
- for (i = first_data_segment; i <= last_data_segment; ++i) {
- ftape_put_bad_sector_entry(i,
- ftape_get_bad_sector_entry(i)
- | 0x00ff00ff);
- }
- }
-#endif
-}
-
-static void print_bad_sector_map(void)
-{
- unsigned int good_sectors;
- unsigned int total_bad = 0;
- int i;
- TRACE_FUN(ft_t_flow);
-
- if (ft_format_code == fmt_big ||
- ft_format_code == fmt_var ||
- ft_format_code == fmt_1100ft) {
- SectorCount *ptr = (SectorCount *)bad_sector_map;
- unsigned int sector;
- __u16 *ptr16;
-
- while((sector = get_sector(ptr++)) != 0) {
- if ((ft_format_code == fmt_big ||
- ft_format_code == fmt_var) &&
- sector & 0x800000) {
- total_bad += FT_SECTORS_PER_SEGMENT - 3;
- TRACE(ft_t_noise, "bad segment at sector: %6d",
- sector & 0x7fffff);
- } else {
- ++total_bad;
- TRACE(ft_t_noise, "bad sector: %6d", sector);
- }
- }
- /* Display old ftape's end-of-file marks
- */
- ptr16 = (__u16*)ptr;
- while ((sector = get_unaligned(ptr16++)) != 0) {
- TRACE(ft_t_noise, "Old ftape eof mark: %4d/%2d",
- sector, get_unaligned(ptr16++));
- }
- } else { /* fixed size format */
- for (i = ft_first_data_segment;
- i < (int)(ft_segments_per_track * ft_tracks_per_tape); ++i) {
- SectorMap map = ((SectorMap *) bad_sector_map)[i];
-
- if (map) {
- TRACE(ft_t_noise,
- "bsm for segment %4d: 0x%08x", i, (unsigned int)map);
- total_bad += ((map == EMPTY_SEGMENT)
- ? FT_SECTORS_PER_SEGMENT - 3
- : count_ones(map));
- }
- }
- }
- good_sectors =
- ((ft_segments_per_track * ft_tracks_per_tape - ft_first_data_segment)
- * (FT_SECTORS_PER_SEGMENT - 3)) - total_bad;
- TRACE(ft_t_info, "%d Kb usable on this tape", good_sectors);
- if (total_bad == 0) {
- TRACE(ft_t_info,
- "WARNING: this tape has no bad blocks registered !");
- } else {
- TRACE(ft_t_info, "%d bad sectors", total_bad);
- }
- TRACE_EXIT;
-}
-
-
-void ftape_extract_bad_sector_map(__u8 * buffer)
-{
- TRACE_FUN(ft_t_any);
-
- /* Fill the bad sector map with the contents of buffer.
- */
- if (ft_format_code == fmt_var || ft_format_code == fmt_big) {
- /* QIC-3010/3020 and wide QIC-80 tapes no longer have a failed
- * sector log but use this area to extend the bad sector map.
- */
- bad_sector_map = &buffer[FT_HEADER_END];
- } else {
- /* non-wide QIC-80 tapes have a failed sector log area that
- * mustn't be included in the bad sector map.
- */
- bad_sector_map = &buffer[FT_FSL + FT_FSL_SIZE];
- }
- if (ft_format_code == fmt_1100ft ||
- ft_format_code == fmt_var ||
- ft_format_code == fmt_big) {
- bsm_hash_ptr = (SectorCount *)bad_sector_map;
- } else {
- bsm_hash_ptr = NULL;
- }
- bsm_debug_fake();
- if (TRACE_LEVEL >= ft_t_info) {
- print_bad_sector_map();
- }
- TRACE_EXIT;
-}
-
-static inline SectorMap cvt2map(unsigned int sector)
-{
- return 1 << (((sector & 0x7fffff) - 1) % FT_SECTORS_PER_SEGMENT);
-}
-
-static inline int cvt2segment(unsigned int sector)
-{
- return ((sector & 0x7fffff) - 1) / FT_SECTORS_PER_SEGMENT;
-}
-
-static int forward_seek_entry(int segment_id,
- SectorCount **ptr,
- SectorMap *map)
-{
- unsigned int sector;
- int segment;
-
- do {
- sector = get_sector((*ptr)++);
- segment = cvt2segment(sector);
- } while (sector != 0 && segment < segment_id);
- (*ptr) --; /* point to first sector >= segment_id */
- /* Get all sectors in segment_id
- */
- if (sector == 0 || segment != segment_id) {
- *map = 0;
- return 0;
- } else if ((sector & 0x800000) &&
- (ft_format_code == fmt_var || ft_format_code == fmt_big)) {
- *map = EMPTY_SEGMENT;
- return FT_SECTORS_PER_SEGMENT;
- } else {
- int count = 1;
- SectorCount *tmp_ptr = (*ptr) + 1;
-
- *map = cvt2map(sector);
- while ((sector = get_sector(tmp_ptr++)) != 0 &&
- (segment = cvt2segment(sector)) == segment_id) {
- *map |= cvt2map(sector);
- ++count;
- }
- return count;
- }
-}
-
-static int backwards_seek_entry(int segment_id,
- SectorCount **ptr,
- SectorMap *map)
-{
- unsigned int sector;
- int segment; /* max unsigned int */
-
- if (*ptr <= (SectorCount *)bad_sector_map) {
- *map = 0;
- return 0;
- }
- do {
- sector = get_sector(--(*ptr));
- segment = cvt2segment(sector);
- } while (*ptr > (SectorCount *)bad_sector_map && segment > segment_id);
- if (segment > segment_id) { /* at start of list, no entry found */
- *map = 0;
- return 0;
- } else if (segment < segment_id) {
- /* before smaller entry, adjust for overshoot */
- (*ptr) ++;
- *map = 0;
- return 0;
- } else if ((sector & 0x800000) &&
- (ft_format_code == fmt_big || ft_format_code == fmt_var)) {
- *map = EMPTY_SEGMENT;
- return FT_SECTORS_PER_SEGMENT;
- } else { /* get all sectors in segment_id */
- int count = 1;
-
- *map = cvt2map(sector);
- while(*ptr > (SectorCount *)bad_sector_map) {
- sector = get_sector(--(*ptr));
- segment = cvt2segment(sector);
- if (segment != segment_id) {
- break;
- }
- *map |= cvt2map(sector);
- ++count;
- }
- if (segment < segment_id) {
- (*ptr) ++;
- }
- return count;
- }
-}
-
-#if 0
-static void ftape_put_bad_sector_entry(int segment_id, SectorMap new_map)
-{
- SectorCount *ptr = (SectorCount *)bad_sector_map;
- int count;
- int new_count;
- SectorMap map;
- TRACE_FUN(ft_t_any);
-
- if (ft_format_code == fmt_1100ft ||
- ft_format_code == fmt_var ||
- ft_format_code == fmt_big) {
- count = forward_seek_entry(segment_id, &ptr, &map);
- new_count = count_ones(new_map);
- /* If format code == 4 put empty segment instead of 32
- * bad sectors.
- */
- if (ft_format_code == fmt_var || ft_format_code == fmt_big) {
- if (new_count == FT_SECTORS_PER_SEGMENT) {
- new_count = 1;
- }
- if (count == FT_SECTORS_PER_SEGMENT) {
- count = 1;
- }
- }
- if (count != new_count) {
- /* insert (or delete if < 0) new_count - count
- * entries. Move trailing part of list
- * including terminating 0.
- */
- SectorCount *hi_ptr = ptr;
-
- do {
- } while (get_sector(hi_ptr++) != 0);
- /* Note: ptr is of type byte *, and each bad sector
- * consumes 3 bytes.
- */
- memmove(ptr + new_count, ptr + count,
- (size_t)(hi_ptr - (ptr + count))*sizeof(SectorCount));
- }
- TRACE(ft_t_noise, "putting map 0x%08x at %p, segment %d",
- (unsigned int)new_map, ptr, segment_id);
- if (new_count == 1 && new_map == EMPTY_SEGMENT) {
- put_sector(ptr++, (0x800001 +
- segment_id *
- FT_SECTORS_PER_SEGMENT));
- } else {
- int i = 0;
-
- while (new_map) {
- if (new_map & 1) {
- put_sector(ptr++,
- 1 + segment_id *
- FT_SECTORS_PER_SEGMENT + i);
- }
- ++i;
- new_map >>= 1;
- }
- }
- } else {
- ((SectorMap *) bad_sector_map)[segment_id] = new_map;
- }
- TRACE_EXIT;
-}
-#endif /* 0 */
-
-SectorMap ftape_get_bad_sector_entry(int segment_id)
-{
- if (ft_used_header_segment == -1) {
- /* When reading header segment we'll need a blank map.
- */
- return 0;
- } else if (bsm_hash_ptr != NULL) {
- /* Invariants:
- * map - mask value returned on last call.
- * bsm_hash_ptr - points to first sector greater or equal to
- * first sector in last_referenced segment.
- * last_referenced - segment id used in the last call,
- * sector and map belong to this id.
- * This code is designed for sequential access and retries.
- * For true random access it may have to be redesigned.
- */
- static int last_reference = -1;
- static SectorMap map;
-
- if (segment_id > last_reference) {
- /* Skip all sectors before segment_id
- */
- forward_seek_entry(segment_id, &bsm_hash_ptr, &map);
- } else if (segment_id < last_reference) {
- /* Skip backwards until begin of buffer or
- * first sector in segment_id
- */
- backwards_seek_entry(segment_id, &bsm_hash_ptr, &map);
- } /* segment_id == last_reference : keep map */
- last_reference = segment_id;
- return map;
- } else {
- return ((SectorMap *) bad_sector_map)[segment_id];
- }
-}
-
-/* This is simply here to prevent us from overwriting other kernel
- * data. Writes will result in NULL Pointer dereference.
- */
-void ftape_init_bsm(void)
-{
- bad_sector_map = NULL;
- bsm_hash_ptr = NULL;
-}
diff --git a/drivers/char/ftape/lowlevel/ftape-bsm.h b/drivers/char/ftape/lowlevel/ftape-bsm.h
deleted file mode 100644
index ed45465af4d..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-bsm.h
+++ /dev/null
@@ -1,66 +0,0 @@
-#ifndef _FTAPE_BSM_H
-#define _FTAPE_BSM_H
-
-/*
- * Copyright (C) 1994-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-bsm.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:07 $
- *
- * This file contains definitions for the bad sector map handling
- * routines for the QIC-117 floppy-tape driver for Linux.
- */
-
-#include <linux/ftape.h>
-#include <linux/ftape-header-segment.h>
-
-#define EMPTY_SEGMENT (0xffffffff)
-#define FAKE_SEGMENT (0xfffffffe)
-
-/* maximum (format code 4) bad sector map size (bytes).
- */
-#define BAD_SECTOR_MAP_SIZE (29 * SECTOR_SIZE - 256)
-
-/* format code 4 bad sector entry, ftape uses this
- * internally for all format codes
- */
-typedef __u32 SectorMap;
-/* variable and 1100 ft bad sector map entry. These three bytes represent
- * a single sector address measured from BOT.
- */
-typedef struct NewSectorMap {
- __u8 bytes[3];
-} SectorCount;
-
-
-/*
- * ftape-bsm.c defined global vars.
- */
-
-/*
- * ftape-bsm.c defined global functions.
- */
-extern void update_bad_sector_map(__u8 * buffer);
-extern void ftape_extract_bad_sector_map(__u8 * buffer);
-extern SectorMap ftape_get_bad_sector_entry(int segment_id);
-extern __u8 *ftape_find_end_of_bsm_list(__u8 * address);
-extern void ftape_init_bsm(void);
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-buffer.c b/drivers/char/ftape/lowlevel/ftape-buffer.c
deleted file mode 100644
index c706ff16277..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-buffer.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright (C) 1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-buffer.c,v $
- * $Revision: 1.3 $
- * $Date: 1997/10/16 23:33:11 $
- *
- * This file contains the allocator/dealloctor for ftape's dynamic dma
- * buffer.
- */
-
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <asm/dma.h>
-
-#include <linux/ftape.h>
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-read.h"
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-buffer.h"
-
-/* DMA'able memory allocation stuff.
- */
-
-static inline void *dmaalloc(size_t size)
-{
- unsigned long addr;
-
- if (size == 0) {
- return NULL;
- }
- addr = __get_dma_pages(GFP_KERNEL, get_order(size));
- if (addr) {
- struct page *page;
-
- for (page = virt_to_page(addr); page < virt_to_page(addr+size); page++)
- SetPageReserved(page);
- }
- return (void *)addr;
-}
-
-static inline void dmafree(void *addr, size_t size)
-{
- if (size > 0) {
- struct page *page;
-
- for (page = virt_to_page((unsigned long)addr);
- page < virt_to_page((unsigned long)addr+size); page++)
- ClearPageReserved(page);
- free_pages((unsigned long) addr, get_order(size));
- }
-}
-
-static int add_one_buffer(void)
-{
- TRACE_FUN(ft_t_flow);
-
- if (ft_nr_buffers >= FT_MAX_NR_BUFFERS) {
- TRACE_EXIT -ENOMEM;
- }
- ft_buffer[ft_nr_buffers] = kmalloc(sizeof(buffer_struct), GFP_KERNEL);
- if (ft_buffer[ft_nr_buffers] == NULL) {
- TRACE_EXIT -ENOMEM;
- }
- memset(ft_buffer[ft_nr_buffers], 0, sizeof(buffer_struct));
- ft_buffer[ft_nr_buffers]->address = dmaalloc(FT_BUFF_SIZE);
- if (ft_buffer[ft_nr_buffers]->address == NULL) {
- kfree(ft_buffer[ft_nr_buffers]);
- ft_buffer[ft_nr_buffers] = NULL;
- TRACE_EXIT -ENOMEM;
- }
- ft_nr_buffers ++;
- TRACE(ft_t_info, "buffer nr #%d @ %p, dma area @ %p",
- ft_nr_buffers,
- ft_buffer[ft_nr_buffers-1],
- ft_buffer[ft_nr_buffers-1]->address);
- TRACE_EXIT 0;
-}
-
-static void del_one_buffer(void)
-{
- TRACE_FUN(ft_t_flow);
- if (ft_nr_buffers > 0) {
- TRACE(ft_t_info, "releasing buffer nr #%d @ %p, dma area @ %p",
- ft_nr_buffers,
- ft_buffer[ft_nr_buffers-1],
- ft_buffer[ft_nr_buffers-1]->address);
- ft_nr_buffers --;
- dmafree(ft_buffer[ft_nr_buffers]->address, FT_BUFF_SIZE);
- kfree(ft_buffer[ft_nr_buffers]);
- ft_buffer[ft_nr_buffers] = NULL;
- }
- TRACE_EXIT;
-}
-
-int ftape_set_nr_buffers(int cnt)
-{
- int delta = cnt - ft_nr_buffers;
- TRACE_FUN(ft_t_flow);
-
- if (delta > 0) {
- while (delta--) {
- if (add_one_buffer() < 0) {
- TRACE_EXIT -ENOMEM;
- }
- }
- } else if (delta < 0) {
- while (delta++) {
- del_one_buffer();
- }
- }
- ftape_zap_read_buffers();
- TRACE_EXIT 0;
-}
diff --git a/drivers/char/ftape/lowlevel/ftape-buffer.h b/drivers/char/ftape/lowlevel/ftape-buffer.h
deleted file mode 100644
index eec99cee8f8..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-buffer.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef _FTAPE_BUFFER_H
-#define _FTAPE_BUFFER_H
-
-/*
- * Copyright (C) 1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-buffer.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:08 $
- *
- * This file contains the allocator/dealloctor for ftape's dynamic dma
- * buffer.
- */
-
-extern int ftape_set_nr_buffers(int cnt);
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-calibr.c b/drivers/char/ftape/lowlevel/ftape-calibr.c
deleted file mode 100644
index 8e50bfd35a5..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-calibr.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-calibr.c,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:08 $
- *
- * GP calibration routine for processor speed dependent
- * functions.
- */
-
-#include <linux/errno.h>
-#include <linux/jiffies.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#if defined(__alpha__)
-# include <asm/hwrpb.h>
-#elif defined(__x86_64__)
-# include <asm/msr.h>
-# include <asm/timex.h>
-#elif defined(__i386__)
-# include <linux/timex.h>
-#endif
-#include <linux/ftape.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-calibr.h"
-#include "../lowlevel/fdc-io.h"
-
-#undef DEBUG
-
-#if !defined(__alpha__) && !defined(__i386__) && !defined(__x86_64__)
-# error Ftape is not implemented for this architecture!
-#endif
-
-#if defined(__alpha__) || defined(__x86_64__)
-static unsigned long ps_per_cycle = 0;
-#endif
-
-static spinlock_t calibr_lock;
-
-/*
- * Note: On Intel PCs, the clock ticks at 100 Hz (HZ==100) which is
- * too slow for certain timeouts (and that clock doesn't even tick
- * when interrupts are disabled). For that reason, the 8254 timer is
- * used directly to implement fine-grained timeouts. However, on
- * Alpha PCs, the 8254 is *not* used to implement the clock tick
- * (which is 1024 Hz, normally) and the 8254 timer runs at some
- * "random" frequency (it seems to run at 18Hz, but it's not safe to
- * rely on this value). Instead, we use the Alpha's "rpcc"
- * instruction to read cycle counts. As this is a 32 bit counter,
- * it will overflow only once per 30 seconds (on a 200MHz machine),
- * which is plenty.
- */
-
-unsigned int ftape_timestamp(void)
-{
-#if defined(__alpha__)
- unsigned long r;
-
- asm volatile ("rpcc %0" : "=r" (r));
- return r;
-#elif defined(__x86_64__)
- unsigned long r;
- rdtscl(r);
- return r;
-#elif defined(__i386__)
-
-/*
- * Note that there is some time between counter underflowing and jiffies
- * increasing, so the code below won't always give correct output.
- * -Vojtech
- */
-
- unsigned long flags;
- __u16 lo;
- __u16 hi;
-
- spin_lock_irqsave(&calibr_lock, flags);
- outb_p(0x00, 0x43); /* latch the count ASAP */
- lo = inb_p(0x40); /* read the latched count */
- lo |= inb(0x40) << 8;
- hi = jiffies;
- spin_unlock_irqrestore(&calibr_lock, flags);
- return ((hi + 1) * (unsigned int) LATCH) - lo; /* downcounter ! */
-#endif
-}
-
-static unsigned int short_ftape_timestamp(void)
-{
-#if defined(__alpha__) || defined(__x86_64__)
- return ftape_timestamp();
-#elif defined(__i386__)
- unsigned int count;
- unsigned long flags;
-
- spin_lock_irqsave(&calibr_lock, flags);
- outb_p(0x00, 0x43); /* latch the count ASAP */
- count = inb_p(0x40); /* read the latched count */
- count |= inb(0x40) << 8;
- spin_unlock_irqrestore(&calibr_lock, flags);
- return (LATCH - count); /* normal: downcounter */
-#endif
-}
-
-static unsigned int diff(unsigned int t0, unsigned int t1)
-{
-#if defined(__alpha__) || defined(__x86_64__)
- return (t1 - t0);
-#elif defined(__i386__)
- /*
- * This is tricky: to work for both short and full ftape_timestamps
- * we'll have to discriminate between these.
- * If it _looks_ like short stamps with wrapping around we'll
- * asume it are. This will generate a small error if it really
- * was a (very large) delta from full ftape_timestamps.
- */
- return (t1 <= t0 && t0 <= LATCH) ? t1 + LATCH - t0 : t1 - t0;
-#endif
-}
-
-static unsigned int usecs(unsigned int count)
-{
-#if defined(__alpha__) || defined(__x86_64__)
- return (ps_per_cycle * count) / 1000000UL;
-#elif defined(__i386__)
- return (10000 * count) / ((CLOCK_TICK_RATE + 50) / 100);
-#endif
-}
-
-unsigned int ftape_timediff(unsigned int t0, unsigned int t1)
-{
- /*
- * Calculate difference in usec for ftape_timestamp results t0 & t1.
- * Note that on the i386 platform with short time-stamps, the
- * maximum allowed timespan is 1/HZ or we'll lose ticks!
- */
- return usecs(diff(t0, t1));
-}
-
-/* To get an indication of the I/O performance,
- * measure the duration of the inb() function.
- */
-static void time_inb(void)
-{
- int i;
- int t0, t1;
- unsigned long flags;
- int status;
- TRACE_FUN(ft_t_any);
-
- spin_lock_irqsave(&calibr_lock, flags);
- t0 = short_ftape_timestamp();
- for (i = 0; i < 1000; ++i) {
- status = inb(fdc.msr);
- }
- t1 = short_ftape_timestamp();
- spin_unlock_irqrestore(&calibr_lock, flags);
- TRACE(ft_t_info, "inb() duration: %d nsec", ftape_timediff(t0, t1));
- TRACE_EXIT;
-}
-
-static void init_clock(void)
-{
- TRACE_FUN(ft_t_any);
-
-#if defined(__x86_64__)
- ps_per_cycle = 1000000000UL / cpu_khz;
-#elif defined(__alpha__)
- extern struct hwrpb_struct *hwrpb;
- ps_per_cycle = (1000*1000*1000*1000UL) / hwrpb->cycle_freq;
-#endif
- TRACE_EXIT;
-}
-
-/*
- * Input: function taking int count as parameter.
- * pointers to calculated calibration variables.
- */
-void ftape_calibrate(char *name,
- void (*fun) (unsigned int),
- unsigned int *calibr_count,
- unsigned int *calibr_time)
-{
- static int first_time = 1;
- int i;
- unsigned int tc = 0;
- unsigned int count;
- unsigned int time;
-#if defined(__i386__)
- unsigned int old_tc = 0;
- unsigned int old_count = 1;
- unsigned int old_time = 1;
-#endif
- TRACE_FUN(ft_t_flow);
-
- if (first_time) { /* get idea of I/O performance */
- init_clock();
- time_inb();
- first_time = 0;
- }
- /* value of timeout must be set so that on very slow systems
- * it will give a time less than one jiffy, and on
- * very fast systems it'll give reasonable precision.
- */
-
- count = 40;
- for (i = 0; i < 15; ++i) {
- unsigned int t0;
- unsigned int t1;
- unsigned int once;
- unsigned int multiple;
- unsigned long flags;
-
- *calibr_count =
- *calibr_time = count; /* set TC to 1 */
- spin_lock_irqsave(&calibr_lock, flags);
- fun(0); /* dummy, get code into cache */
- t0 = short_ftape_timestamp();
- fun(0); /* overhead + one test */
- t1 = short_ftape_timestamp();
- once = diff(t0, t1);
- t0 = short_ftape_timestamp();
- fun(count); /* overhead + count tests */
- t1 = short_ftape_timestamp();
- multiple = diff(t0, t1);
- spin_unlock_irqrestore(&calibr_lock, flags);
- time = ftape_timediff(0, multiple - once);
- tc = (1000 * time) / (count - 1);
- TRACE(ft_t_any, "once:%3d us,%6d times:%6d us, TC:%5d ns",
- usecs(once), count - 1, usecs(multiple), tc);
-#if defined(__alpha__) || defined(__x86_64__)
- /*
- * Increase the calibration count exponentially until the
- * calibration time exceeds 100 ms.
- */
- if (time >= 100*1000) {
- break;
- }
-#elif defined(__i386__)
- /*
- * increase the count until the resulting time nears 2/HZ,
- * then the tc will drop sharply because we lose LATCH counts.
- */
- if (tc <= old_tc / 2) {
- time = old_time;
- count = old_count;
- break;
- }
- old_tc = tc;
- old_count = count;
- old_time = time;
-#endif
- count *= 2;
- }
- *calibr_count = count - 1;
- *calibr_time = time;
- TRACE(ft_t_info, "TC for `%s()' = %d nsec (at %d counts)",
- name, (1000 * *calibr_time) / *calibr_count, *calibr_count);
- TRACE_EXIT;
-}
diff --git a/drivers/char/ftape/lowlevel/ftape-calibr.h b/drivers/char/ftape/lowlevel/ftape-calibr.h
deleted file mode 100644
index 0c7e75246c7..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-calibr.h
+++ /dev/null
@@ -1,37 +0,0 @@
-#ifndef _FTAPE_CALIBR_H
-#define _FTAPE_CALIBR_H
-
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-calibr.h,v $
- * $Revision: 1.1 $
- * $Date: 1997/09/19 09:05:26 $
- *
- * This file contains a gp calibration routine for
- * hardware dependent timeout functions.
- */
-
-extern void ftape_calibrate(char *name,
- void (*fun) (unsigned int),
- unsigned int *calibr_count,
- unsigned int *calibr_time);
-extern unsigned int ftape_timestamp(void);
-extern unsigned int ftape_timediff(unsigned int t0, unsigned int t1);
-
-#endif /* _FTAPE_CALIBR_H */
diff --git a/drivers/char/ftape/lowlevel/ftape-ctl.c b/drivers/char/ftape/lowlevel/ftape-ctl.c
deleted file mode 100644
index 5d7c1ce92d5..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-ctl.c
+++ /dev/null
@@ -1,896 +0,0 @@
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-ctl.c,v $
- * $Revision: 1.4 $
- * $Date: 1997/11/11 14:37:44 $
- *
- * This file contains the non-read/write ftape functions for the
- * QIC-40/80/3010/3020 floppy-tape driver "ftape" for Linux.
- */
-
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-
-#include <linux/ftape.h>
-#include <linux/qic117.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-/* ease porting between pre-2.4.x and later kernels */
-#define vma_get_pgoff(v) ((v)->vm_pgoff)
-
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-write.h"
-#include "../lowlevel/ftape-read.h"
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-bsm.h"
-
-/* Global vars.
- */
-ftape_info ftape_status = {
-/* vendor information */
- { 0, }, /* drive type */
-/* data rates */
- 500, /* used data rate */
- 500, /* drive max rate */
- 500, /* fdc max rate */
-/* drive selection, either FTAPE_SEL_A/B/C/D */
- -1, /* drive selection */
-/* flags set after decode the drive and tape status */
- 0, /* formatted */
- 1, /* no tape */
- 1, /* write protected */
- 1, /* new tape */
-/* values of last queried drive/tape status and error */
- {{0,}}, /* last error code */
- {{0,}}, /* drive status, configuration, tape status */
-/* cartridge geometry */
- 20, /* tracks_per_tape */
- 102, /* segments_per_track */
-/* location of header segments, etc. */
- -1, /* used_header_segment */
- -1, /* header_segment_1 */
- -1, /* header_segment_2 */
- -1, /* first_data_segment */
- -1, /* last_data_segment */
-/* the format code as stored in the header segment */
- fmt_normal, /* format code */
-/* the default for the qic std: unknown */
- -1,
-/* is tape running? */
- idle, /* runner_state */
-/* is tape reading/writing/verifying/formatting/deleting */
- idle, /* driver state */
-/* flags fatal hardware error */
- 1, /* failure */
-/* history record */
- { 0, } /* history record */
-};
-
-int ftape_segments_per_head = 1020;
-int ftape_segments_per_cylinder = 4;
-int ftape_init_drive_needed = 1; /* need to be global for ftape_reset_drive()
- * in ftape-io.c
- */
-
-/* Local vars.
- */
-static const vendor_struct vendors[] = QIC117_VENDORS;
-static const wakeup_method methods[] = WAKEUP_METHODS;
-
-const ftape_info *ftape_get_status(void)
-{
-#if defined(STATUS_PARANOYA)
- static ftape_info get_status;
-
- get_status = ftape_status;
- return &get_status;
-#else
- return &ftape_status; /* maybe return only a copy of it to assure
- * read only access
- */
-#endif
-}
-
-static int ftape_not_operational(int status)
-{
- /* return true if status indicates tape can not be used.
- */
- return ((status ^ QIC_STATUS_CARTRIDGE_PRESENT) &
- (QIC_STATUS_ERROR |
- QIC_STATUS_CARTRIDGE_PRESENT |
- QIC_STATUS_NEW_CARTRIDGE));
-}
-
-int ftape_seek_to_eot(void)
-{
- int status;
- TRACE_FUN(ft_t_any);
-
- TRACE_CATCH(ftape_ready_wait(ftape_timeout.pause, &status),);
- while ((status & QIC_STATUS_AT_EOT) == 0) {
- if (ftape_not_operational(status)) {
- TRACE_EXIT -EIO;
- }
- TRACE_CATCH(ftape_command_wait(QIC_PHYSICAL_FORWARD,
- ftape_timeout.rewind,&status),);
- }
- TRACE_EXIT 0;
-}
-
-int ftape_seek_to_bot(void)
-{
- int status;
- TRACE_FUN(ft_t_any);
-
- TRACE_CATCH(ftape_ready_wait(ftape_timeout.pause, &status),);
- while ((status & QIC_STATUS_AT_BOT) == 0) {
- if (ftape_not_operational(status)) {
- TRACE_EXIT -EIO;
- }
- TRACE_CATCH(ftape_command_wait(QIC_PHYSICAL_REVERSE,
- ftape_timeout.rewind,&status),);
- }
- TRACE_EXIT 0;
-}
-
-static int ftape_new_cartridge(void)
-{
- ft_location.track = -1; /* force seek on first access */
- ftape_zap_read_buffers();
- ftape_zap_write_buffers();
- return 0;
-}
-
-int ftape_abort_operation(void)
-{
- int result = 0;
- int status;
- TRACE_FUN(ft_t_flow);
-
- if (ft_runner_status == running) {
- TRACE(ft_t_noise, "aborting runner, waiting");
-
- ft_runner_status = do_abort;
- /* set timeout so that the tape will run to logical EOT
- * if we missed the last sector and there are no queue pulses.
- */
- result = ftape_dumb_stop();
- }
- if (ft_runner_status != idle) {
- if (ft_runner_status == do_abort) {
- TRACE(ft_t_noise, "forcing runner abort");
- }
- TRACE(ft_t_noise, "stopping tape");
- result = ftape_stop_tape(&status);
- ft_location.known = 0;
- ft_runner_status = idle;
- }
- ftape_reset_buffer();
- ftape_zap_read_buffers();
- ftape_set_state(idle);
- TRACE_EXIT result;
-}
-
-static int lookup_vendor_id(unsigned int vendor_id)
-{
- int i = 0;
-
- while (vendors[i].vendor_id != vendor_id) {
- if (++i >= NR_ITEMS(vendors)) {
- return -1;
- }
- }
- return i;
-}
-
-static void ftape_detach_drive(void)
-{
- TRACE_FUN(ft_t_any);
-
- TRACE(ft_t_flow, "disabling tape drive and fdc");
- ftape_put_drive_to_sleep(ft_drive_type.wake_up);
- fdc_catch_stray_interrupts(1); /* one always comes */
- fdc_disable();
- fdc_release_irq_and_dma();
- fdc_release_regions();
- TRACE_EXIT;
-}
-
-static void clear_history(void)
-{
- ft_history.used = 0;
- ft_history.id_am_errors =
- ft_history.id_crc_errors =
- ft_history.data_am_errors =
- ft_history.data_crc_errors =
- ft_history.overrun_errors =
- ft_history.no_data_errors =
- ft_history.retries =
- ft_history.crc_errors =
- ft_history.crc_failures =
- ft_history.ecc_failures =
- ft_history.corrected =
- ft_history.defects =
- ft_history.rewinds = 0;
-}
-
-static int ftape_activate_drive(vendor_struct * drive_type)
-{
- int result = 0;
- TRACE_FUN(ft_t_flow);
-
- /* If we already know the drive type, wake it up.
- * Else try to find out what kind of drive is attached.
- */
- if (drive_type->wake_up != unknown_wake_up) {
- TRACE(ft_t_flow, "enabling tape drive and fdc");
- result = ftape_wakeup_drive(drive_type->wake_up);
- if (result < 0) {
- TRACE(ft_t_err, "known wakeup method failed");
- }
- } else {
- wake_up_types method;
- const ft_trace_t old_tracing = TRACE_LEVEL;
- if (TRACE_LEVEL < ft_t_flow) {
- SET_TRACE_LEVEL(ft_t_bug);
- }
-
- /* Try to awaken the drive using all known methods.
- * Lower tracing for a while.
- */
- for (method=no_wake_up; method < NR_ITEMS(methods); ++method) {
- drive_type->wake_up = method;
-#ifdef CONFIG_FT_TWO_DRIVES
- /* Test setup for dual drive configuration.
- * /dev/rft2 uses mountain wakeup
- * /dev/rft3 uses colorado wakeup
- * Other systems will use the normal scheme.
- */
- if ((ft_drive_sel < 2) ||
- (ft_drive_sel == 2 && method == FT_WAKE_UP_1) ||
- (ft_drive_sel == 3 && method == FT_WAKE_UP_2)) {
- result=ftape_wakeup_drive(drive_type->wake_up);
- } else {
- result = -EIO;
- }
-#else
- result = ftape_wakeup_drive(drive_type->wake_up);
-#endif
- if (result >= 0) {
- TRACE(ft_t_warn, "drive wakeup method: %s",
- methods[drive_type->wake_up].name);
- break;
- }
- }
- SET_TRACE_LEVEL(old_tracing);
-
- if (method >= NR_ITEMS(methods)) {
- /* no response at all, cannot open this drive */
- drive_type->wake_up = unknown_wake_up;
- TRACE(ft_t_err, "no tape drive found !");
- result = -ENODEV;
- }
- }
- TRACE_EXIT result;
-}
-
-static int ftape_get_drive_status(void)
-{
- int result;
- int status;
- TRACE_FUN(ft_t_flow);
-
- ft_no_tape = ft_write_protected = 0;
- /* Tape drive is activated now.
- * First clear error status if present.
- */
- do {
- result = ftape_ready_wait(ftape_timeout.reset, &status);
- if (result < 0) {
- if (result == -ETIME) {
- TRACE(ft_t_err, "ftape_ready_wait timeout");
- } else if (result == -EINTR) {
- TRACE(ft_t_err, "ftape_ready_wait aborted");
- } else {
- TRACE(ft_t_err, "ftape_ready_wait failed");
- }
- TRACE_EXIT -EIO;
- }
- /* Clear error condition (drive is ready !)
- */
- if (status & QIC_STATUS_ERROR) {
- unsigned int error;
- qic117_cmd_t command;
-
- TRACE(ft_t_err, "error status set");
- result = ftape_report_error(&error, &command, 1);
- if (result < 0) {
- TRACE(ft_t_err,
- "report_error_code failed: %d", result);
- /* hope it's working next time */
- ftape_reset_drive();
- TRACE_EXIT -EIO;
- } else if (error != 0) {
- TRACE(ft_t_noise, "error code : %d", error);
- TRACE(ft_t_noise, "error command: %d", command);
- }
- }
- if (status & QIC_STATUS_NEW_CARTRIDGE) {
- unsigned int error;
- qic117_cmd_t command;
- const ft_trace_t old_tracing = TRACE_LEVEL;
- SET_TRACE_LEVEL(ft_t_bug);
-
- /* Undocumented feature: Must clear (not present!)
- * error here or we'll fail later.
- */
- ftape_report_error(&error, &command, 1);
-
- SET_TRACE_LEVEL(old_tracing);
- TRACE(ft_t_info, "status: new cartridge");
- ft_new_tape = 1;
- } else {
- ft_new_tape = 0;
- }
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- } while (status & QIC_STATUS_ERROR);
-
- ft_no_tape = !(status & QIC_STATUS_CARTRIDGE_PRESENT);
- ft_write_protected = (status & QIC_STATUS_WRITE_PROTECT) != 0;
- if (ft_no_tape) {
- TRACE(ft_t_warn, "no cartridge present");
- } else {
- if (ft_write_protected) {
- TRACE(ft_t_noise, "Write protected cartridge");
- }
- }
- TRACE_EXIT 0;
-}
-
-static void ftape_log_vendor_id(void)
-{
- int vendor_index;
- TRACE_FUN(ft_t_flow);
-
- ftape_report_vendor_id(&ft_drive_type.vendor_id);
- vendor_index = lookup_vendor_id(ft_drive_type.vendor_id);
- if (ft_drive_type.vendor_id == UNKNOWN_VENDOR &&
- ft_drive_type.wake_up == wake_up_colorado) {
- vendor_index = 0;
- /* hack to get rid of all this mail */
- ft_drive_type.vendor_id = 0;
- }
- if (vendor_index < 0) {
- /* Unknown vendor id, first time opening device. The
- * drive_type remains set to type found at wakeup
- * time, this will probably keep the driver operating
- * for this new vendor.
- */
- TRACE(ft_t_warn, "\n"
- KERN_INFO "============ unknown vendor id ===========\n"
- KERN_INFO "A new, yet unsupported tape drive is found\n"
- KERN_INFO "Please report the following values:\n"
- KERN_INFO " Vendor id : 0x%04x\n"
- KERN_INFO " Wakeup method : %s\n"
- KERN_INFO "And a description of your tape drive\n"
- KERN_INFO "to "THE_FTAPE_MAINTAINER"\n"
- KERN_INFO "==========================================",
- ft_drive_type.vendor_id,
- methods[ft_drive_type.wake_up].name);
- ft_drive_type.speed = 0; /* unknown */
- } else {
- ft_drive_type.name = vendors[vendor_index].name;
- ft_drive_type.speed = vendors[vendor_index].speed;
- TRACE(ft_t_info, "tape drive type: %s", ft_drive_type.name);
- /* scan all methods for this vendor_id in table */
- while(ft_drive_type.wake_up != vendors[vendor_index].wake_up) {
- if (vendor_index < NR_ITEMS(vendors) - 1 &&
- vendors[vendor_index + 1].vendor_id
- ==
- ft_drive_type.vendor_id) {
- ++vendor_index;
- } else {
- break;
- }
- }
- if (ft_drive_type.wake_up != vendors[vendor_index].wake_up) {
- TRACE(ft_t_warn, "\n"
- KERN_INFO "==========================================\n"
- KERN_INFO "wakeup type mismatch:\n"
- KERN_INFO "found: %s, expected: %s\n"
- KERN_INFO "please report this to "THE_FTAPE_MAINTAINER"\n"
- KERN_INFO "==========================================",
- methods[ft_drive_type.wake_up].name,
- methods[vendors[vendor_index].wake_up].name);
- }
- }
- TRACE_EXIT;
-}
-
-void ftape_calc_timeouts(unsigned int qic_std,
- unsigned int data_rate,
- unsigned int tape_len)
-{
- int speed; /* deci-ips ! */
- int ff_speed;
- int length;
- TRACE_FUN(ft_t_any);
-
- /* tape transport speed
- * data rate: QIC-40 QIC-80 QIC-3010 QIC-3020
- *
- * 250 Kbps 25 ips n/a n/a n/a
- * 500 Kbps 50 ips 34 ips 22.6 ips n/a
- * 1 Mbps n/a 68 ips 45.2 ips 22.6 ips
- * 2 Mbps n/a n/a n/a 45.2 ips
- *
- * fast tape transport speed is at least 68 ips.
- */
- switch (qic_std) {
- case QIC_TAPE_QIC40:
- speed = (data_rate == 250) ? 250 : 500;
- break;
- case QIC_TAPE_QIC80:
- speed = (data_rate == 500) ? 340 : 680;
- break;
- case QIC_TAPE_QIC3010:
- speed = (data_rate == 500) ? 226 : 452;
- break;
- case QIC_TAPE_QIC3020:
- speed = (data_rate == 1000) ? 226 : 452;
- break;
- default:
- TRACE(ft_t_bug, "Unknown qic_std (bug) ?");
- speed = 500;
- break;
- }
- if (ft_drive_type.speed == 0) {
- unsigned long t0;
- static int dt = 0; /* keep gcc from complaining */
- static int first_time = 1;
-
- /* Measure the time it takes to wind to EOT and back to BOT.
- * If the tape length is known, calculate the rewind speed.
- * Else keep the time value for calculation of the rewind
- * speed later on, when the length _is_ known.
- * Ask for a report only when length and speed are both known.
- */
- if (first_time) {
- ftape_seek_to_bot();
- t0 = jiffies;
- ftape_seek_to_eot();
- ftape_seek_to_bot();
- dt = (int) (((jiffies - t0) * FT_USPT) / 1000);
- if (dt < 1) {
- dt = 1; /* prevent div by zero on failures */
- }
- first_time = 0;
- TRACE(ft_t_info,
- "trying to determine seek timeout, got %d msec",
- dt);
- }
- if (tape_len != 0) {
- ft_drive_type.speed =
- (2 * 12 * tape_len * 1000) / dt;
- TRACE(ft_t_warn, "\n"
- KERN_INFO "==========================================\n"
- KERN_INFO "drive type: %s\n"
- KERN_INFO "delta time = %d ms, length = %d ft\n"
- KERN_INFO "has a maximum tape speed of %d ips\n"
- KERN_INFO "please report this to "THE_FTAPE_MAINTAINER"\n"
- KERN_INFO "==========================================",
- ft_drive_type.name, dt, tape_len,
- ft_drive_type.speed);
- }
- }
- /* Handle unknown length tapes as very long ones. We'll
- * determine the actual length from a header segment later.
- * This is normal for all modern (Wide,TR1/2/3) formats.
- */
- if (tape_len <= 0) {
- TRACE(ft_t_noise,
- "Unknown tape length, using maximal timeouts");
- length = QIC_TOP_TAPE_LEN; /* use worst case values */
- } else {
- length = tape_len; /* use actual values */
- }
- if (ft_drive_type.speed == 0) {
- ff_speed = speed;
- } else {
- ff_speed = ft_drive_type.speed;
- }
- /* time to go from bot to eot at normal speed (data rate):
- * time = (1+delta) * length (ft) * 12 (inch/ft) / speed (ips)
- * delta = 10 % for seek speed, 20 % for rewind speed.
- */
- ftape_timeout.seek = (length * 132 * FT_SECOND) / speed;
- ftape_timeout.rewind = (length * 144 * FT_SECOND) / (10 * ff_speed);
- ftape_timeout.reset = 20 * FT_SECOND + ftape_timeout.rewind;
- TRACE(ft_t_noise, "timeouts for speed = %d, length = %d\n"
- KERN_INFO "seek timeout : %d sec\n"
- KERN_INFO "rewind timeout: %d sec\n"
- KERN_INFO "reset timeout : %d sec",
- speed, length,
- (ftape_timeout.seek + 500) / 1000,
- (ftape_timeout.rewind + 500) / 1000,
- (ftape_timeout.reset + 500) / 1000);
- TRACE_EXIT;
-}
-
-/* This function calibrates the datarate (i.e. determines the maximal
- * usable data rate) and sets the global variable ft_qic_std to qic_std
- *
- */
-int ftape_calibrate_data_rate(unsigned int qic_std)
-{
- int rate = ft_fdc_rate_limit;
- int result;
- TRACE_FUN(ft_t_flow);
-
- ft_qic_std = qic_std;
-
- if (ft_qic_std == -1) {
- TRACE_ABORT(-EIO, ft_t_err,
- "Unable to determine data rate if QIC standard is unknown");
- }
-
- /* Select highest rate supported by both fdc and drive.
- * Start with highest rate supported by the fdc.
- */
- while (fdc_set_data_rate(rate) < 0 && rate > 250) {
- rate /= 2;
- }
- TRACE(ft_t_info,
- "Highest FDC supported data rate: %d Kbps", rate);
- ft_fdc_max_rate = rate;
- do {
- result = ftape_set_data_rate(rate, ft_qic_std);
- } while (result == -EINVAL && (rate /= 2) > 250);
- if (result < 0) {
- TRACE_ABORT(-EIO, ft_t_err, "set datarate failed");
- }
- ft_data_rate = rate;
- TRACE_EXIT 0;
-}
-
-static int ftape_init_drive(void)
-{
- int status;
- qic_model model;
- unsigned int qic_std;
- unsigned int data_rate;
- TRACE_FUN(ft_t_flow);
-
- ftape_init_drive_needed = 0; /* don't retry if this fails ? */
- TRACE_CATCH(ftape_report_raw_drive_status(&status),);
- if (status & QIC_STATUS_CARTRIDGE_PRESENT) {
- if (!(status & QIC_STATUS_AT_BOT)) {
- /* Antique drives will get here after a soft reset,
- * modern ones only if the driver is loaded when the
- * tape wasn't rewound properly.
- */
- /* Tape should be at bot if new cartridge ! */
- ftape_seek_to_bot();
- }
- if (!(status & QIC_STATUS_REFERENCED)) {
- TRACE(ft_t_flow, "starting seek_load_point");
- TRACE_CATCH(ftape_command_wait(QIC_SEEK_LOAD_POINT,
- ftape_timeout.reset,
- &status),);
- }
- }
- ft_formatted = (status & QIC_STATUS_REFERENCED) != 0;
- if (!ft_formatted) {
- TRACE(ft_t_warn, "Warning: tape is not formatted !");
- }
-
- /* report configuration aborts when ftape_tape_len == -1
- * unknown qic_std is okay if not formatted.
- */
- TRACE_CATCH(ftape_report_configuration(&model,
- &data_rate,
- &qic_std,
- &ftape_tape_len),);
-
- /* Maybe add the following to the /proc entry
- */
- TRACE(ft_t_info, "%s drive @ %d Kbps",
- (model == prehistoric) ? "prehistoric" :
- ((model == pre_qic117c) ? "pre QIC-117C" :
- ((model == post_qic117b) ? "post QIC-117B" :
- "post QIC-117D")), data_rate);
-
- if (ft_formatted) {
- /* initialize ft_used_data_rate to maximum value
- * and set ft_qic_std
- */
- TRACE_CATCH(ftape_calibrate_data_rate(qic_std),);
- if (ftape_tape_len == 0) {
- TRACE(ft_t_info, "unknown length QIC-%s tape",
- (ft_qic_std == QIC_TAPE_QIC40) ? "40" :
- ((ft_qic_std == QIC_TAPE_QIC80) ? "80" :
- ((ft_qic_std == QIC_TAPE_QIC3010)
- ? "3010" : "3020")));
- } else {
- TRACE(ft_t_info, "%d ft. QIC-%s tape", ftape_tape_len,
- (ft_qic_std == QIC_TAPE_QIC40) ? "40" :
- ((ft_qic_std == QIC_TAPE_QIC80) ? "80" :
- ((ft_qic_std == QIC_TAPE_QIC3010)
- ? "3010" : "3020")));
- }
- ftape_calc_timeouts(ft_qic_std, ft_data_rate, ftape_tape_len);
- /* soft write-protect QIC-40/QIC-80 cartridges used with a
- * Colorado T3000 drive. Buggy hardware!
- */
- if ((ft_drive_type.vendor_id == 0x011c6) &&
- ((ft_qic_std == QIC_TAPE_QIC40 ||
- ft_qic_std == QIC_TAPE_QIC80) &&
- !ft_write_protected)) {
- TRACE(ft_t_warn, "\n"
- KERN_INFO "The famous Colorado T3000 bug:\n"
- KERN_INFO "%s drives can't write QIC40 and QIC80\n"
- KERN_INFO "cartridges but don't set the write-protect flag!",
- ft_drive_type.name);
- ft_write_protected = 1;
- }
- } else {
- /* Doesn't make too much sense to set the data rate
- * because we don't know what to use for the write
- * precompensation.
- * Need to do this again when formatting the cartridge.
- */
- ft_data_rate = data_rate;
- ftape_calc_timeouts(QIC_TAPE_QIC40,
- data_rate,
- ftape_tape_len);
- }
- ftape_new_cartridge();
- TRACE_EXIT 0;
-}
-
-static void ftape_munmap(void)
-{
- int i;
- TRACE_FUN(ft_t_flow);
-
- for (i = 0; i < ft_nr_buffers; i++) {
- ft_buffer[i]->mmapped = 0;
- }
- TRACE_EXIT;
-}
-
-/* Map the dma buffers into the virtual address range given by vma.
- * We only check the caller doesn't map non-existent buffers. We
- * don't check for multiple mappings.
- */
-int ftape_mmap(struct vm_area_struct *vma)
-{
- int num_buffers;
- int i;
- TRACE_FUN(ft_t_flow);
-
- if (ft_failure) {
- TRACE_EXIT -ENODEV;
- }
- if (!(vma->vm_flags & (VM_READ|VM_WRITE))) {
- TRACE_ABORT(-EINVAL, ft_t_err, "Undefined mmap() access");
- }
- if (vma_get_pgoff(vma) != 0) {
- TRACE_ABORT(-EINVAL, ft_t_err, "page offset must be 0");
- }
- if ((vma->vm_end - vma->vm_start) % FT_BUFF_SIZE != 0) {
- TRACE_ABORT(-EINVAL, ft_t_err,
- "size = %ld, should be a multiple of %d",
- vma->vm_end - vma->vm_start,
- FT_BUFF_SIZE);
- }
- num_buffers = (vma->vm_end - vma->vm_start) / FT_BUFF_SIZE;
- if (num_buffers > ft_nr_buffers) {
- TRACE_ABORT(-EINVAL,
- ft_t_err, "size = %ld, should be less than %d",
- vma->vm_end - vma->vm_start,
- ft_nr_buffers * FT_BUFF_SIZE);
- }
- if (ft_driver_state != idle) {
- /* this also clears the buffer states
- */
- ftape_abort_operation();
- } else {
- ftape_reset_buffer();
- }
- for (i = 0; i < num_buffers; i++) {
- unsigned long pfn;
-
- pfn = virt_to_phys(ft_buffer[i]->address) >> PAGE_SHIFT;
- TRACE_CATCH(remap_pfn_range(vma, vma->vm_start +
- i * FT_BUFF_SIZE,
- pfn,
- FT_BUFF_SIZE,
- vma->vm_page_prot),
- _res = -EAGAIN);
- TRACE(ft_t_noise, "remapped dma buffer @ %p to location @ %p",
- ft_buffer[i]->address,
- (void *)(vma->vm_start + i * FT_BUFF_SIZE));
- }
- for (i = 0; i < num_buffers; i++) {
- memset(ft_buffer[i]->address, 0xAA, FT_BUFF_SIZE);
- ft_buffer[i]->mmapped++;
- }
- TRACE_EXIT 0;
-}
-
-static void ftape_init_driver(void); /* forward declaration */
-
-/* OPEN routine called by kernel-interface code
- */
-int ftape_enable(int drive_selection)
-{
- TRACE_FUN(ft_t_any);
-
- if (ft_drive_sel == -1 || ft_drive_sel != drive_selection) {
- /* Other selection than last time
- */
- ftape_init_driver();
- }
- ft_drive_sel = FTAPE_SEL(drive_selection);
- ft_failure = 0;
- TRACE_CATCH(fdc_init(),); /* init & detect fdc */
- TRACE_CATCH(ftape_activate_drive(&ft_drive_type),
- fdc_disable();
- fdc_release_irq_and_dma();
- fdc_release_regions());
- TRACE_CATCH(ftape_get_drive_status(), ftape_detach_drive());
- if (ft_drive_type.vendor_id == UNKNOWN_VENDOR) {
- ftape_log_vendor_id();
- }
- if (ft_new_tape) {
- ftape_init_drive_needed = 1;
- }
- if (!ft_no_tape && ftape_init_drive_needed) {
- TRACE_CATCH(ftape_init_drive(), ftape_detach_drive());
- }
- ftape_munmap(); /* clear the mmap flag */
- clear_history();
- TRACE_EXIT 0;
-}
-
-/* release routine called by the high level interface modules
- * zftape or sftape.
- */
-void ftape_disable(void)
-{
- int i;
- TRACE_FUN(ft_t_any);
-
- for (i = 0; i < ft_nr_buffers; i++) {
- if (ft_buffer[i]->mmapped) {
- TRACE(ft_t_noise, "first byte of buffer %d: 0x%02x",
- i, *ft_buffer[i]->address);
- }
- }
- if (sigtestsetmask(&current->pending.signal, _DONT_BLOCK) &&
- !(sigtestsetmask(&current->pending.signal, _NEVER_BLOCK)) &&
- ftape_tape_running) {
- TRACE(ft_t_warn,
- "Interrupted by fatal signal and tape still running");
- ftape_dumb_stop();
- ftape_abort_operation(); /* it's annoying */
- } else {
- ftape_set_state(idle);
- }
- ftape_detach_drive();
- if (ft_history.used) {
- TRACE(ft_t_info, "== Non-fatal errors this run: ==");
- TRACE(ft_t_info, "fdc isr statistics:\n"
- KERN_INFO " id_am_errors : %3d\n"
- KERN_INFO " id_crc_errors : %3d\n"
- KERN_INFO " data_am_errors : %3d\n"
- KERN_INFO " data_crc_errors : %3d\n"
- KERN_INFO " overrun_errors : %3d\n"
- KERN_INFO " no_data_errors : %3d\n"
- KERN_INFO " retries : %3d",
- ft_history.id_am_errors, ft_history.id_crc_errors,
- ft_history.data_am_errors, ft_history.data_crc_errors,
- ft_history.overrun_errors, ft_history.no_data_errors,
- ft_history.retries);
- if (ft_history.used & 1) {
- TRACE(ft_t_info, "ecc statistics:\n"
- KERN_INFO " crc_errors : %3d\n"
- KERN_INFO " crc_failures : %3d\n"
- KERN_INFO " ecc_failures : %3d\n"
- KERN_INFO " sectors corrected: %3d",
- ft_history.crc_errors, ft_history.crc_failures,
- ft_history.ecc_failures, ft_history.corrected);
- }
- if (ft_history.defects > 0) {
- TRACE(ft_t_warn, "Warning: %d media defects!",
- ft_history.defects);
- }
- if (ft_history.rewinds > 0) {
- TRACE(ft_t_info, "tape motion statistics:\n"
- KERN_INFO "repositions : %3d",
- ft_history.rewinds);
- }
- }
- ft_failure = 1;
- TRACE_EXIT;
-}
-
-static void ftape_init_driver(void)
-{
- TRACE_FUN(ft_t_flow);
-
- ft_drive_type.vendor_id = UNKNOWN_VENDOR;
- ft_drive_type.speed = 0;
- ft_drive_type.wake_up = unknown_wake_up;
- ft_drive_type.name = "Unknown";
-
- ftape_timeout.seek = 650 * FT_SECOND;
- ftape_timeout.reset = 670 * FT_SECOND;
- ftape_timeout.rewind = 650 * FT_SECOND;
- ftape_timeout.head_seek = 15 * FT_SECOND;
- ftape_timeout.stop = 5 * FT_SECOND;
- ftape_timeout.pause = 16 * FT_SECOND;
-
- ft_qic_std = -1;
- ftape_tape_len = 0; /* unknown */
- ftape_current_command = 0;
- ftape_current_cylinder = -1;
-
- ft_segments_per_track = 102;
- ftape_segments_per_head = 1020;
- ftape_segments_per_cylinder = 4;
- ft_tracks_per_tape = 20;
-
- ft_failure = 1;
-
- ft_formatted = 0;
- ft_no_tape = 1;
- ft_write_protected = 1;
- ft_new_tape = 1;
-
- ft_driver_state = idle;
-
- ft_data_rate =
- ft_fdc_max_rate = 500;
- ft_drive_max_rate = 0; /* triggers set_rate_test() */
-
- ftape_init_drive_needed = 1;
-
- ft_header_segment_1 = -1;
- ft_header_segment_2 = -1;
- ft_used_header_segment = -1;
- ft_first_data_segment = -1;
- ft_last_data_segment = -1;
-
- ft_location.track = -1;
- ft_location.known = 0;
-
- ftape_tape_running = 0;
- ftape_might_be_off_track = 1;
-
- ftape_new_cartridge(); /* init some tape related variables */
- ftape_init_bsm();
- TRACE_EXIT;
-}
diff --git a/drivers/char/ftape/lowlevel/ftape-ctl.h b/drivers/char/ftape/lowlevel/ftape-ctl.h
deleted file mode 100644
index 5f5e30bc361..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-ctl.h
+++ /dev/null
@@ -1,162 +0,0 @@
-#ifndef _FTAPE_CTL_H
-#define _FTAPE_CTL_H
-
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-ctl.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:09 $
- *
- * This file contains the non-standard IOCTL related definitions
- * for the QIC-40/80/3010/3020 floppy-tape driver "ftape" for
- * Linux.
- */
-
-#include <linux/ioctl.h>
-#include <linux/mtio.h>
-#include <linux/ftape-vendors.h>
-
-#include "../lowlevel/ftape-rw.h"
-#include <linux/ftape-header-segment.h>
-
-typedef struct {
- int used; /* any reading or writing done */
- /* isr statistics */
- unsigned int id_am_errors; /* id address mark not found */
- unsigned int id_crc_errors; /* crc error in id address mark */
- unsigned int data_am_errors; /* data address mark not found */
- unsigned int data_crc_errors; /* crc error in data field */
- unsigned int overrun_errors; /* fdc access timing problem */
- unsigned int no_data_errors; /* sector not found */
- unsigned int retries; /* number of tape retries */
- /* ecc statistics */
- unsigned int crc_errors; /* crc error in data */
- unsigned int crc_failures; /* bad data without crc error */
- unsigned int ecc_failures; /* failed to correct */
- unsigned int corrected; /* total sectors corrected */
- /* general statistics */
- unsigned int rewinds; /* number of tape rewinds */
- unsigned int defects; /* bad sectors due to media defects */
-} history_record;
-
-/* this structure contains * ALL * information that we want
- * our child modules to know about, but don't want them to
- * modify.
- */
-typedef struct {
- /* vendor information */
- vendor_struct fti_drive_type;
- /* data rates */
- unsigned int fti_used_data_rate;
- unsigned int fti_drive_max_rate;
- unsigned int fti_fdc_max_rate;
- /* drive selection, either FTAPE_SEL_A/B/C/D */
- int fti_drive_sel;
- /* flags set after decode the drive and tape status */
- unsigned int fti_formatted :1;
- unsigned int fti_no_tape :1;
- unsigned int fti_write_protected:1;
- unsigned int fti_new_tape :1;
- /* values of last queried drive/tape status and error */
- ft_drive_error fti_last_error;
- ft_drive_status fti_last_status;
- /* cartridge geometry */
- unsigned int fti_tracks_per_tape;
- unsigned int fti_segments_per_track;
- /* location of header segments, etc. */
- int fti_used_header_segment;
- int fti_header_segment_1;
- int fti_header_segment_2;
- int fti_first_data_segment;
- int fti_last_data_segment;
- /* the format code as stored in the header segment */
- ft_format_type fti_format_code;
- /* the following is the sole reason for the ftape_set_status() call */
- unsigned int fti_qic_std;
- /* is tape running? */
- volatile enum runner_status_enum fti_runner_status;
- /* is tape reading/writing/verifying/formatting/deleting */
- buffer_state_enum fti_state;
- /* flags fatal hardware error */
- unsigned int fti_failure:1;
- /* history record */
- history_record fti_history;
-} ftape_info;
-
-/* vendor information */
-#define ft_drive_type ftape_status.fti_drive_type
-/* data rates */
-#define ft_data_rate ftape_status.fti_used_data_rate
-#define ft_drive_max_rate ftape_status.fti_drive_max_rate
-#define ft_fdc_max_rate ftape_status.fti_fdc_max_rate
-/* drive selection, either FTAPE_SEL_A/B/C/D */
-#define ft_drive_sel ftape_status.fti_drive_sel
-/* flags set after decode the drive and tape status */
-#define ft_formatted ftape_status.fti_formatted
-#define ft_no_tape ftape_status.fti_no_tape
-#define ft_write_protected ftape_status.fti_write_protected
-#define ft_new_tape ftape_status.fti_new_tape
-/* values of last queried drive/tape status and error */
-#define ft_last_error ftape_status.fti_last_error
-#define ft_last_status ftape_status.fti_last_status
-/* cartridge geometry */
-#define ft_tracks_per_tape ftape_status.fti_tracks_per_tape
-#define ft_segments_per_track ftape_status.fti_segments_per_track
-/* the format code as stored in the header segment */
-#define ft_format_code ftape_status.fti_format_code
-/* the qic status as returned by report drive configuration */
-#define ft_qic_std ftape_status.fti_qic_std
-#define ft_used_header_segment ftape_status.fti_used_header_segment
-#define ft_header_segment_1 ftape_status.fti_header_segment_1
-#define ft_header_segment_2 ftape_status.fti_header_segment_2
-#define ft_first_data_segment ftape_status.fti_first_data_segment
-#define ft_last_data_segment ftape_status.fti_last_data_segment
-/* is tape running? */
-#define ft_runner_status ftape_status.fti_runner_status
-/* is tape reading/writing/verifying/formatting/deleting */
-#define ft_driver_state ftape_status.fti_state
-/* flags fatal hardware error */
-#define ft_failure ftape_status.fti_failure
-/* history record */
-#define ft_history ftape_status.fti_history
-
-/*
- * ftape-ctl.c defined global vars.
- */
-extern ftape_info ftape_status;
-extern int ftape_segments_per_head;
-extern int ftape_segments_per_cylinder;
-extern int ftape_init_drive_needed;
-
-/*
- * ftape-ctl.c defined global functions.
- */
-extern int ftape_mmap(struct vm_area_struct *vma);
-extern int ftape_enable(int drive_selection);
-extern void ftape_disable(void);
-extern int ftape_seek_to_bot(void);
-extern int ftape_seek_to_eot(void);
-extern int ftape_abort_operation(void);
-extern void ftape_calc_timeouts(unsigned int qic_std,
- unsigned int data_rate,
- unsigned int tape_len);
-extern int ftape_calibrate_data_rate(unsigned int qic_std);
-extern const ftape_info *ftape_get_status(void);
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-ecc.c b/drivers/char/ftape/lowlevel/ftape-ecc.c
deleted file mode 100644
index e5632f674bc..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-ecc.c
+++ /dev/null
@@ -1,853 +0,0 @@
-/*
- *
- * Copyright (c) 1993 Ning and David Mosberger.
-
- This is based on code originally written by Bas Laarhoven (bas@vimec.nl)
- and David L. Brown, Jr., and incorporates improvements suggested by
- Kai Harrekilde-Petersen.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
- USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-ecc.c,v $
- * $Revision: 1.3 $
- * $Date: 1997/10/05 19:18:10 $
- *
- * This file contains the Reed-Solomon error correction code
- * for the QIC-40/80 floppy-tape driver for Linux.
- */
-
-#include <linux/ftape.h>
-
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-ecc.h"
-
-/* Machines that are big-endian should define macro BIG_ENDIAN.
- * Unfortunately, there doesn't appear to be a standard include file
- * that works for all OSs.
- */
-
-#if defined(__sparc__) || defined(__hppa)
-#define BIG_ENDIAN
-#endif /* __sparc__ || __hppa */
-
-#if defined(__mips__)
-#error Find a smart way to determine the Endianness of the MIPS CPU
-#endif
-
-/* Notice: to minimize the potential for confusion, we use r to
- * denote the independent variable of the polynomials in the
- * Galois Field GF(2^8). We reserve x for polynomials that
- * that have coefficients in GF(2^8).
- *
- * The Galois Field in which coefficient arithmetic is performed are
- * the polynomials over Z_2 (i.e., 0 and 1) modulo the irreducible
- * polynomial f(r), where f(r)=r^8 + r^7 + r^2 + r + 1. A polynomial
- * is represented as a byte with the MSB as the coefficient of r^7 and
- * the LSB as the coefficient of r^0. For example, the binary
- * representation of f(x) is 0x187 (of course, this doesn't fit into 8
- * bits). In this field, the polynomial r is a primitive element.
- * That is, r^i with i in 0,...,255 enumerates all elements in the
- * field.
- *
- * The generator polynomial for the QIC-80 ECC is
- *
- * g(x) = x^3 + r^105*x^2 + r^105*x + 1
- *
- * which can be factored into:
- *
- * g(x) = (x-r^-1)(x-r^0)(x-r^1)
- *
- * the byte representation of the coefficients are:
- *
- * r^105 = 0xc0
- * r^-1 = 0xc3
- * r^0 = 0x01
- * r^1 = 0x02
- *
- * Notice that r^-1 = r^254 as exponent arithmetic is performed
- * modulo 2^8-1 = 255.
- *
- * For more information on Galois Fields and Reed-Solomon codes, refer
- * to any good book. I found _An Introduction to Error Correcting
- * Codes with Applications_ by S. A. Vanstone and P. C. van Oorschot
- * to be a good introduction into the former. _CODING THEORY: The
- * Essentials_ I found very useful for its concise description of
- * Reed-Solomon encoding/decoding.
- *
- */
-
-typedef __u8 Matrix[3][3];
-
-/*
- * gfpow[] is defined such that gfpow[i] returns r^i if
- * i is in the range [0..255].
- */
-static const __u8 gfpow[] =
-{
- 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
- 0x87, 0x89, 0x95, 0xad, 0xdd, 0x3d, 0x7a, 0xf4,
- 0x6f, 0xde, 0x3b, 0x76, 0xec, 0x5f, 0xbe, 0xfb,
- 0x71, 0xe2, 0x43, 0x86, 0x8b, 0x91, 0xa5, 0xcd,
- 0x1d, 0x3a, 0x74, 0xe8, 0x57, 0xae, 0xdb, 0x31,
- 0x62, 0xc4, 0x0f, 0x1e, 0x3c, 0x78, 0xf0, 0x67,
- 0xce, 0x1b, 0x36, 0x6c, 0xd8, 0x37, 0x6e, 0xdc,
- 0x3f, 0x7e, 0xfc, 0x7f, 0xfe, 0x7b, 0xf6, 0x6b,
- 0xd6, 0x2b, 0x56, 0xac, 0xdf, 0x39, 0x72, 0xe4,
- 0x4f, 0x9e, 0xbb, 0xf1, 0x65, 0xca, 0x13, 0x26,
- 0x4c, 0x98, 0xb7, 0xe9, 0x55, 0xaa, 0xd3, 0x21,
- 0x42, 0x84, 0x8f, 0x99, 0xb5, 0xed, 0x5d, 0xba,
- 0xf3, 0x61, 0xc2, 0x03, 0x06, 0x0c, 0x18, 0x30,
- 0x60, 0xc0, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0,
- 0x47, 0x8e, 0x9b, 0xb1, 0xe5, 0x4d, 0x9a, 0xb3,
- 0xe1, 0x45, 0x8a, 0x93, 0xa1, 0xc5, 0x0d, 0x1a,
- 0x34, 0x68, 0xd0, 0x27, 0x4e, 0x9c, 0xbf, 0xf9,
- 0x75, 0xea, 0x53, 0xa6, 0xcb, 0x11, 0x22, 0x44,
- 0x88, 0x97, 0xa9, 0xd5, 0x2d, 0x5a, 0xb4, 0xef,
- 0x59, 0xb2, 0xe3, 0x41, 0x82, 0x83, 0x81, 0x85,
- 0x8d, 0x9d, 0xbd, 0xfd, 0x7d, 0xfa, 0x73, 0xe6,
- 0x4b, 0x96, 0xab, 0xd1, 0x25, 0x4a, 0x94, 0xaf,
- 0xd9, 0x35, 0x6a, 0xd4, 0x2f, 0x5e, 0xbc, 0xff,
- 0x79, 0xf2, 0x63, 0xc6, 0x0b, 0x16, 0x2c, 0x58,
- 0xb0, 0xe7, 0x49, 0x92, 0xa3, 0xc1, 0x05, 0x0a,
- 0x14, 0x28, 0x50, 0xa0, 0xc7, 0x09, 0x12, 0x24,
- 0x48, 0x90, 0xa7, 0xc9, 0x15, 0x2a, 0x54, 0xa8,
- 0xd7, 0x29, 0x52, 0xa4, 0xcf, 0x19, 0x32, 0x64,
- 0xc8, 0x17, 0x2e, 0x5c, 0xb8, 0xf7, 0x69, 0xd2,
- 0x23, 0x46, 0x8c, 0x9f, 0xb9, 0xf5, 0x6d, 0xda,
- 0x33, 0x66, 0xcc, 0x1f, 0x3e, 0x7c, 0xf8, 0x77,
- 0xee, 0x5b, 0xb6, 0xeb, 0x51, 0xa2, 0xc3, 0x01
-};
-
-/*
- * This is a log table. That is, gflog[r^i] returns i (modulo f(r)).
- * gflog[0] is undefined and the first element is therefore not valid.
- */
-static const __u8 gflog[256] =
-{
- 0xff, 0x00, 0x01, 0x63, 0x02, 0xc6, 0x64, 0x6a,
- 0x03, 0xcd, 0xc7, 0xbc, 0x65, 0x7e, 0x6b, 0x2a,
- 0x04, 0x8d, 0xce, 0x4e, 0xc8, 0xd4, 0xbd, 0xe1,
- 0x66, 0xdd, 0x7f, 0x31, 0x6c, 0x20, 0x2b, 0xf3,
- 0x05, 0x57, 0x8e, 0xe8, 0xcf, 0xac, 0x4f, 0x83,
- 0xc9, 0xd9, 0xd5, 0x41, 0xbe, 0x94, 0xe2, 0xb4,
- 0x67, 0x27, 0xde, 0xf0, 0x80, 0xb1, 0x32, 0x35,
- 0x6d, 0x45, 0x21, 0x12, 0x2c, 0x0d, 0xf4, 0x38,
- 0x06, 0x9b, 0x58, 0x1a, 0x8f, 0x79, 0xe9, 0x70,
- 0xd0, 0xc2, 0xad, 0xa8, 0x50, 0x75, 0x84, 0x48,
- 0xca, 0xfc, 0xda, 0x8a, 0xd6, 0x54, 0x42, 0x24,
- 0xbf, 0x98, 0x95, 0xf9, 0xe3, 0x5e, 0xb5, 0x15,
- 0x68, 0x61, 0x28, 0xba, 0xdf, 0x4c, 0xf1, 0x2f,
- 0x81, 0xe6, 0xb2, 0x3f, 0x33, 0xee, 0x36, 0x10,
- 0x6e, 0x18, 0x46, 0xa6, 0x22, 0x88, 0x13, 0xf7,
- 0x2d, 0xb8, 0x0e, 0x3d, 0xf5, 0xa4, 0x39, 0x3b,
- 0x07, 0x9e, 0x9c, 0x9d, 0x59, 0x9f, 0x1b, 0x08,
- 0x90, 0x09, 0x7a, 0x1c, 0xea, 0xa0, 0x71, 0x5a,
- 0xd1, 0x1d, 0xc3, 0x7b, 0xae, 0x0a, 0xa9, 0x91,
- 0x51, 0x5b, 0x76, 0x72, 0x85, 0xa1, 0x49, 0xeb,
- 0xcb, 0x7c, 0xfd, 0xc4, 0xdb, 0x1e, 0x8b, 0xd2,
- 0xd7, 0x92, 0x55, 0xaa, 0x43, 0x0b, 0x25, 0xaf,
- 0xc0, 0x73, 0x99, 0x77, 0x96, 0x5c, 0xfa, 0x52,
- 0xe4, 0xec, 0x5f, 0x4a, 0xb6, 0xa2, 0x16, 0x86,
- 0x69, 0xc5, 0x62, 0xfe, 0x29, 0x7d, 0xbb, 0xcc,
- 0xe0, 0xd3, 0x4d, 0x8c, 0xf2, 0x1f, 0x30, 0xdc,
- 0x82, 0xab, 0xe7, 0x56, 0xb3, 0x93, 0x40, 0xd8,
- 0x34, 0xb0, 0xef, 0x26, 0x37, 0x0c, 0x11, 0x44,
- 0x6f, 0x78, 0x19, 0x9a, 0x47, 0x74, 0xa7, 0xc1,
- 0x23, 0x53, 0x89, 0xfb, 0x14, 0x5d, 0xf8, 0x97,
- 0x2e, 0x4b, 0xb9, 0x60, 0x0f, 0xed, 0x3e, 0xe5,
- 0xf6, 0x87, 0xa5, 0x17, 0x3a, 0xa3, 0x3c, 0xb7
-};
-
-/* This is a multiplication table for the factor 0xc0 (i.e., r^105 (mod f(r)).
- * gfmul_c0[f] returns r^105 * f(r) (modulo f(r)).
- */
-static const __u8 gfmul_c0[256] =
-{
- 0x00, 0xc0, 0x07, 0xc7, 0x0e, 0xce, 0x09, 0xc9,
- 0x1c, 0xdc, 0x1b, 0xdb, 0x12, 0xd2, 0x15, 0xd5,
- 0x38, 0xf8, 0x3f, 0xff, 0x36, 0xf6, 0x31, 0xf1,
- 0x24, 0xe4, 0x23, 0xe3, 0x2a, 0xea, 0x2d, 0xed,
- 0x70, 0xb0, 0x77, 0xb7, 0x7e, 0xbe, 0x79, 0xb9,
- 0x6c, 0xac, 0x6b, 0xab, 0x62, 0xa2, 0x65, 0xa5,
- 0x48, 0x88, 0x4f, 0x8f, 0x46, 0x86, 0x41, 0x81,
- 0x54, 0x94, 0x53, 0x93, 0x5a, 0x9a, 0x5d, 0x9d,
- 0xe0, 0x20, 0xe7, 0x27, 0xee, 0x2e, 0xe9, 0x29,
- 0xfc, 0x3c, 0xfb, 0x3b, 0xf2, 0x32, 0xf5, 0x35,
- 0xd8, 0x18, 0xdf, 0x1f, 0xd6, 0x16, 0xd1, 0x11,
- 0xc4, 0x04, 0xc3, 0x03, 0xca, 0x0a, 0xcd, 0x0d,
- 0x90, 0x50, 0x97, 0x57, 0x9e, 0x5e, 0x99, 0x59,
- 0x8c, 0x4c, 0x8b, 0x4b, 0x82, 0x42, 0x85, 0x45,
- 0xa8, 0x68, 0xaf, 0x6f, 0xa6, 0x66, 0xa1, 0x61,
- 0xb4, 0x74, 0xb3, 0x73, 0xba, 0x7a, 0xbd, 0x7d,
- 0x47, 0x87, 0x40, 0x80, 0x49, 0x89, 0x4e, 0x8e,
- 0x5b, 0x9b, 0x5c, 0x9c, 0x55, 0x95, 0x52, 0x92,
- 0x7f, 0xbf, 0x78, 0xb8, 0x71, 0xb1, 0x76, 0xb6,
- 0x63, 0xa3, 0x64, 0xa4, 0x6d, 0xad, 0x6a, 0xaa,
- 0x37, 0xf7, 0x30, 0xf0, 0x39, 0xf9, 0x3e, 0xfe,
- 0x2b, 0xeb, 0x2c, 0xec, 0x25, 0xe5, 0x22, 0xe2,
- 0x0f, 0xcf, 0x08, 0xc8, 0x01, 0xc1, 0x06, 0xc6,
- 0x13, 0xd3, 0x14, 0xd4, 0x1d, 0xdd, 0x1a, 0xda,
- 0xa7, 0x67, 0xa0, 0x60, 0xa9, 0x69, 0xae, 0x6e,
- 0xbb, 0x7b, 0xbc, 0x7c, 0xb5, 0x75, 0xb2, 0x72,
- 0x9f, 0x5f, 0x98, 0x58, 0x91, 0x51, 0x96, 0x56,
- 0x83, 0x43, 0x84, 0x44, 0x8d, 0x4d, 0x8a, 0x4a,
- 0xd7, 0x17, 0xd0, 0x10, 0xd9, 0x19, 0xde, 0x1e,
- 0xcb, 0x0b, 0xcc, 0x0c, 0xc5, 0x05, 0xc2, 0x02,
- 0xef, 0x2f, 0xe8, 0x28, 0xe1, 0x21, 0xe6, 0x26,
- 0xf3, 0x33, 0xf4, 0x34, 0xfd, 0x3d, 0xfa, 0x3a
-};
-
-
-/* Returns V modulo 255 provided V is in the range -255,-254,...,509.
- */
-static inline __u8 mod255(int v)
-{
- if (v > 0) {
- if (v < 255) {
- return v;
- } else {
- return v - 255;
- }
- } else {
- return v + 255;
- }
-}
-
-
-/* Add two numbers in the field. Addition in this field is equivalent
- * to a bit-wise exclusive OR operation---subtraction is therefore
- * identical to addition.
- */
-static inline __u8 gfadd(__u8 a, __u8 b)
-{
- return a ^ b;
-}
-
-
-/* Add two vectors of numbers in the field. Each byte in A and B gets
- * added individually.
- */
-static inline unsigned long gfadd_long(unsigned long a, unsigned long b)
-{
- return a ^ b;
-}
-
-
-/* Multiply two numbers in the field:
- */
-static inline __u8 gfmul(__u8 a, __u8 b)
-{
- if (a && b) {
- return gfpow[mod255(gflog[a] + gflog[b])];
- } else {
- return 0;
- }
-}
-
-
-/* Just like gfmul, except we have already looked up the log of the
- * second number.
- */
-static inline __u8 gfmul_exp(__u8 a, int b)
-{
- if (a) {
- return gfpow[mod255(gflog[a] + b)];
- } else {
- return 0;
- }
-}
-
-
-/* Just like gfmul_exp, except that A is a vector of numbers. That
- * is, each byte in A gets multiplied by gfpow[mod255(B)].
- */
-static inline unsigned long gfmul_exp_long(unsigned long a, int b)
-{
- __u8 t;
-
- if (sizeof(long) == 4) {
- return (
- ((t = (__u32)a >> 24 & 0xff) ?
- (((__u32) gfpow[mod255(gflog[t] + b)]) << 24) : 0) |
- ((t = (__u32)a >> 16 & 0xff) ?
- (((__u32) gfpow[mod255(gflog[t] + b)]) << 16) : 0) |
- ((t = (__u32)a >> 8 & 0xff) ?
- (((__u32) gfpow[mod255(gflog[t] + b)]) << 8) : 0) |
- ((t = (__u32)a >> 0 & 0xff) ?
- (((__u32) gfpow[mod255(gflog[t] + b)]) << 0) : 0));
- } else if (sizeof(long) == 8) {
- return (
- ((t = (__u64)a >> 56 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 56) : 0) |
- ((t = (__u64)a >> 48 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 48) : 0) |
- ((t = (__u64)a >> 40 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 40) : 0) |
- ((t = (__u64)a >> 32 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 32) : 0) |
- ((t = (__u64)a >> 24 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 24) : 0) |
- ((t = (__u64)a >> 16 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 16) : 0) |
- ((t = (__u64)a >> 8 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 8) : 0) |
- ((t = (__u64)a >> 0 & 0xff) ?
- (((__u64) gfpow[mod255(gflog[t] + b)]) << 0) : 0));
- } else {
- TRACE_FUN(ft_t_any);
- TRACE_ABORT(-1, ft_t_err, "Error: size of long is %d bytes",
- (int)sizeof(long));
- }
-}
-
-
-/* Divide two numbers in the field. Returns a/b (modulo f(x)).
- */
-static inline __u8 gfdiv(__u8 a, __u8 b)
-{
- if (!b) {
- TRACE_FUN(ft_t_any);
- TRACE_ABORT(0xff, ft_t_bug, "Error: division by zero");
- } else if (a == 0) {
- return 0;
- } else {
- return gfpow[mod255(gflog[a] - gflog[b])];
- }
-}
-
-
-/* The following functions return the inverse of the matrix of the
- * linear system that needs to be solved to determine the error
- * magnitudes. The first deals with matrices of rank 3, while the
- * second deals with matrices of rank 2. The error indices are passed
- * in arguments L0,..,L2 (0=first sector, 31=last sector). The error
- * indices must be sorted in ascending order, i.e., L0<L1<L2.
- *
- * The linear system that needs to be solved for the error magnitudes
- * is A * b = s, where s is the known vector of syndromes, b is the
- * vector of error magnitudes and A in the ORDER=3 case:
- *
- * A_3 = {{1/r^L[0], 1/r^L[1], 1/r^L[2]},
- * { 1, 1, 1},
- * { r^L[0], r^L[1], r^L[2]}}
- */
-static inline int gfinv3(__u8 l0,
- __u8 l1,
- __u8 l2,
- Matrix Ainv)
-{
- __u8 det;
- __u8 t20, t10, t21, t12, t01, t02;
- int log_det;
-
- /* compute some intermediate results: */
- t20 = gfpow[l2 - l0]; /* t20 = r^l2/r^l0 */
- t10 = gfpow[l1 - l0]; /* t10 = r^l1/r^l0 */
- t21 = gfpow[l2 - l1]; /* t21 = r^l2/r^l1 */
- t12 = gfpow[l1 - l2 + 255]; /* t12 = r^l1/r^l2 */
- t01 = gfpow[l0 - l1 + 255]; /* t01 = r^l0/r^l1 */
- t02 = gfpow[l0 - l2 + 255]; /* t02 = r^l0/r^l2 */
- /* Calculate the determinant of matrix A_3^-1 (sometimes
- * called the Vandermonde determinant):
- */
- det = gfadd(t20, gfadd(t10, gfadd(t21, gfadd(t12, gfadd(t01, t02)))));
- if (!det) {
- TRACE_FUN(ft_t_any);
- TRACE_ABORT(0, ft_t_err,
- "Inversion failed (3 CRC errors, >0 CRC failures)");
- }
- log_det = 255 - gflog[det];
-
- /* Now, calculate all of the coefficients:
- */
- Ainv[0][0]= gfmul_exp(gfadd(gfpow[l1], gfpow[l2]), log_det);
- Ainv[0][1]= gfmul_exp(gfadd(t21, t12), log_det);
- Ainv[0][2]= gfmul_exp(gfadd(gfpow[255 - l1], gfpow[255 - l2]),log_det);
-
- Ainv[1][0]= gfmul_exp(gfadd(gfpow[l0], gfpow[l2]), log_det);
- Ainv[1][1]= gfmul_exp(gfadd(t20, t02), log_det);
- Ainv[1][2]= gfmul_exp(gfadd(gfpow[255 - l0], gfpow[255 - l2]),log_det);
-
- Ainv[2][0]= gfmul_exp(gfadd(gfpow[l0], gfpow[l1]), log_det);
- Ainv[2][1]= gfmul_exp(gfadd(t10, t01), log_det);
- Ainv[2][2]= gfmul_exp(gfadd(gfpow[255 - l0], gfpow[255 - l1]),log_det);
-
- return 1;
-}
-
-
-static inline int gfinv2(__u8 l0, __u8 l1, Matrix Ainv)
-{
- __u8 det;
- __u8 t1, t2;
- int log_det;
-
- t1 = gfpow[255 - l0];
- t2 = gfpow[255 - l1];
- det = gfadd(t1, t2);
- if (!det) {
- TRACE_FUN(ft_t_any);
- TRACE_ABORT(0, ft_t_err,
- "Inversion failed (2 CRC errors, >0 CRC failures)");
- }
- log_det = 255 - gflog[det];
-
- /* Now, calculate all of the coefficients:
- */
- Ainv[0][0] = Ainv[1][0] = gfpow[log_det];
-
- Ainv[0][1] = gfmul_exp(t2, log_det);
- Ainv[1][1] = gfmul_exp(t1, log_det);
-
- return 1;
-}
-
-
-/* Multiply matrix A by vector S and return result in vector B. M is
- * assumed to be of order NxN, S and B of order Nx1.
- */
-static inline void gfmat_mul(int n, Matrix A,
- __u8 *s, __u8 *b)
-{
- int i, j;
- __u8 dot_prod;
-
- for (i = 0; i < n; ++i) {
- dot_prod = 0;
- for (j = 0; j < n; ++j) {
- dot_prod = gfadd(dot_prod, gfmul(A[i][j], s[j]));
- }
- b[i] = dot_prod;
- }
-}
-
-
-
-/* The Reed Solomon ECC codes are computed over the N-th byte of each
- * block, where N=SECTOR_SIZE. There are up to 29 blocks of data, and
- * 3 blocks of ECC. The blocks are stored contiguously in memory. A
- * segment, consequently, is assumed to have at least 4 blocks: one or
- * more data blocks plus three ECC blocks.
- *
- * Notice: In QIC-80 speak, a CRC error is a sector with an incorrect
- * CRC. A CRC failure is a sector with incorrect data, but
- * a valid CRC. In the error control literature, the former
- * is usually called "erasure", the latter "error."
- */
-/* Compute the parity bytes for C columns of data, where C is the
- * number of bytes that fit into a long integer. We use a linear
- * feed-back register to do this. The parity bytes P[0], P[STRIDE],
- * P[2*STRIDE] are computed such that:
- *
- * x^k * p(x) + m(x) = 0 (modulo g(x))
- *
- * where k = NBLOCKS,
- * p(x) = P[0] + P[STRIDE]*x + P[2*STRIDE]*x^2, and
- * m(x) = sum_{i=0}^k m_i*x^i.
- * m_i = DATA[i*SECTOR_SIZE]
- */
-static inline void set_parity(unsigned long *data,
- int nblocks,
- unsigned long *p,
- int stride)
-{
- unsigned long p0, p1, p2, t1, t2, *end;
-
- end = data + nblocks * (FT_SECTOR_SIZE / sizeof(long));
- p0 = p1 = p2 = 0;
- while (data < end) {
- /* The new parity bytes p0_i, p1_i, p2_i are computed
- * from the old values p0_{i-1}, p1_{i-1}, p2_{i-1}
- * recursively as:
- *
- * p0_i = p1_{i-1} + r^105 * (m_{i-1} - p0_{i-1})
- * p1_i = p2_{i-1} + r^105 * (m_{i-1} - p0_{i-1})
- * p2_i = (m_{i-1} - p0_{i-1})
- *
- * With the initial condition: p0_0 = p1_0 = p2_0 = 0.
- */
- t1 = gfadd_long(*data, p0);
- /*
- * Multiply each byte in t1 by 0xc0:
- */
- if (sizeof(long) == 4) {
- t2= (((__u32) gfmul_c0[(__u32)t1 >> 24 & 0xff]) << 24 |
- ((__u32) gfmul_c0[(__u32)t1 >> 16 & 0xff]) << 16 |
- ((__u32) gfmul_c0[(__u32)t1 >> 8 & 0xff]) << 8 |
- ((__u32) gfmul_c0[(__u32)t1 >> 0 & 0xff]) << 0);
- } else if (sizeof(long) == 8) {
- t2= (((__u64) gfmul_c0[(__u64)t1 >> 56 & 0xff]) << 56 |
- ((__u64) gfmul_c0[(__u64)t1 >> 48 & 0xff]) << 48 |
- ((__u64) gfmul_c0[(__u64)t1 >> 40 & 0xff]) << 40 |
- ((__u64) gfmul_c0[(__u64)t1 >> 32 & 0xff]) << 32 |
- ((__u64) gfmul_c0[(__u64)t1 >> 24 & 0xff]) << 24 |
- ((__u64) gfmul_c0[(__u64)t1 >> 16 & 0xff]) << 16 |
- ((__u64) gfmul_c0[(__u64)t1 >> 8 & 0xff]) << 8 |
- ((__u64) gfmul_c0[(__u64)t1 >> 0 & 0xff]) << 0);
- } else {
- TRACE_FUN(ft_t_any);
- TRACE(ft_t_err, "Error: long is of size %d",
- (int) sizeof(long));
- TRACE_EXIT;
- }
- p0 = gfadd_long(t2, p1);
- p1 = gfadd_long(t2, p2);
- p2 = t1;
- data += FT_SECTOR_SIZE / sizeof(long);
- }
- *p = p0;
- p += stride;
- *p = p1;
- p += stride;
- *p = p2;
- return;
-}
-
-
-/* Compute the 3 syndrome values. DATA should point to the first byte
- * of the column for which the syndromes are desired. The syndromes
- * are computed over the first NBLOCKS of rows. The three bytes will
- * be placed in S[0], S[1], and S[2].
- *
- * S[i] is the value of the "message" polynomial m(x) evaluated at the
- * i-th root of the generator polynomial g(x).
- *
- * As g(x)=(x-r^-1)(x-1)(x-r^1) we evaluate the message polynomial at
- * x=r^-1 to get S[0], at x=r^0=1 to get S[1], and at x=r to get S[2].
- * This could be done directly and efficiently via the Horner scheme.
- * However, it would require multiplication tables for the factors
- * r^-1 (0xc3) and r (0x02). The following scheme does not require
- * any multiplication tables beyond what's needed for set_parity()
- * anyway and is slightly faster if there are no errors and slightly
- * slower if there are errors. The latter is hopefully the infrequent
- * case.
- *
- * To understand the alternative algorithm, notice that set_parity(m,
- * k, p) computes parity bytes such that:
- *
- * x^k * p(x) = m(x) (modulo g(x)).
- *
- * That is, to evaluate m(r^m), where r^m is a root of g(x), we can
- * simply evaluate (r^m)^k*p(r^m). Also, notice that p is 0 if and
- * only if s is zero. That is, if all parity bytes are 0, we know
- * there is no error in the data and consequently there is no need to
- * compute s(x) at all! In all other cases, we compute s(x) from p(x)
- * by evaluating (r^m)^k*p(r^m) for m=-1, m=0, and m=1. The p(x)
- * polynomial is evaluated via the Horner scheme.
- */
-static int compute_syndromes(unsigned long *data, int nblocks, unsigned long *s)
-{
- unsigned long p[3];
-
- set_parity(data, nblocks, p, 1);
- if (p[0] | p[1] | p[2]) {
- /* Some of the checked columns do not have a zero
- * syndrome. For simplicity, we compute the syndromes
- * for all columns that we have computed the
- * remainders for.
- */
- s[0] = gfmul_exp_long(
- gfadd_long(p[0],
- gfmul_exp_long(
- gfadd_long(p[1],
- gfmul_exp_long(p[2], -1)),
- -1)),
- -nblocks);
- s[1] = gfadd_long(gfadd_long(p[2], p[1]), p[0]);
- s[2] = gfmul_exp_long(
- gfadd_long(p[0],
- gfmul_exp_long(
- gfadd_long(p[1],
- gfmul_exp_long(p[2], 1)),
- 1)),
- nblocks);
- return 0;
- } else {
- return 1;
- }
-}
-
-
-/* Correct the block in the column pointed to by DATA. There are NBAD
- * CRC errors and their indices are in BAD_LOC[0], up to
- * BAD_LOC[NBAD-1]. If NBAD>1, Ainv holds the inverse of the matrix
- * of the linear system that needs to be solved to determine the error
- * magnitudes. S[0], S[1], and S[2] are the syndrome values. If row
- * j gets corrected, then bit j will be set in CORRECTION_MAP.
- */
-static inline int correct_block(__u8 *data, int nblocks,
- int nbad, int *bad_loc, Matrix Ainv,
- __u8 *s,
- SectorMap * correction_map)
-{
- int ncorrected = 0;
- int i;
- __u8 t1, t2;
- __u8 c0, c1, c2; /* check bytes */
- __u8 error_mag[3], log_error_mag;
- __u8 *dp, l, e;
- TRACE_FUN(ft_t_any);
-
- switch (nbad) {
- case 0:
- /* might have a CRC failure: */
- if (s[0] == 0) {
- /* more than one error */
- TRACE_ABORT(-1, ft_t_err,
- "ECC failed (0 CRC errors, >1 CRC failures)");
- }
- t1 = gfdiv(s[1], s[0]);
- if ((bad_loc[nbad++] = gflog[t1]) >= nblocks) {
- TRACE(ft_t_err,
- "ECC failed (0 CRC errors, >1 CRC failures)");
- TRACE_ABORT(-1, ft_t_err,
- "attempt to correct data at %d", bad_loc[0]);
- }
- error_mag[0] = s[1];
- break;
- case 1:
- t1 = gfadd(gfmul_exp(s[1], bad_loc[0]), s[2]);
- t2 = gfadd(gfmul_exp(s[0], bad_loc[0]), s[1]);
- if (t1 == 0 && t2 == 0) {
- /* one erasure, no error: */
- Ainv[0][0] = gfpow[bad_loc[0]];
- } else if (t1 == 0 || t2 == 0) {
- /* one erasure and more than one error: */
- TRACE_ABORT(-1, ft_t_err,
- "ECC failed (1 erasure, >1 error)");
- } else {
- /* one erasure, one error: */
- if ((bad_loc[nbad++] = gflog[gfdiv(t1, t2)])
- >= nblocks) {
- TRACE(ft_t_err, "ECC failed "
- "(1 CRC errors, >1 CRC failures)");
- TRACE_ABORT(-1, ft_t_err,
- "attempt to correct data at %d",
- bad_loc[1]);
- }
- if (!gfinv2(bad_loc[0], bad_loc[1], Ainv)) {
- /* inversion failed---must have more
- * than one error
- */
- TRACE_EXIT -1;
- }
- }
- /* FALL THROUGH TO ERROR MAGNITUDE COMPUTATION:
- */
- case 2:
- case 3:
- /* compute error magnitudes: */
- gfmat_mul(nbad, Ainv, s, error_mag);
- break;
-
- default:
- TRACE_ABORT(-1, ft_t_err,
- "Internal Error: number of CRC errors > 3");
- }
-
- /* Perform correction by adding ERROR_MAG[i] to the byte at
- * offset BAD_LOC[i]. Also add the value of the computed
- * error polynomial to the syndrome values. If the correction
- * was successful, the resulting check bytes should be zero
- * (i.e., the corrected data is a valid code word).
- */
- c0 = s[0];
- c1 = s[1];
- c2 = s[2];
- for (i = 0; i < nbad; ++i) {
- e = error_mag[i];
- if (e) {
- /* correct the byte at offset L by magnitude E: */
- l = bad_loc[i];
- dp = &data[l * FT_SECTOR_SIZE];
- *dp = gfadd(*dp, e);
- *correction_map |= 1 << l;
- ++ncorrected;
-
- log_error_mag = gflog[e];
- c0 = gfadd(c0, gfpow[mod255(log_error_mag - l)]);
- c1 = gfadd(c1, e);
- c2 = gfadd(c2, gfpow[mod255(log_error_mag + l)]);
- }
- }
- if (c0 || c1 || c2) {
- TRACE_ABORT(-1, ft_t_err,
- "ECC self-check failed, too many errors");
- }
- TRACE_EXIT ncorrected;
-}
-
-
-#if defined(ECC_SANITY_CHECK) || defined(ECC_PARANOID)
-
-/* Perform a sanity check on the computed parity bytes:
- */
-static int sanity_check(unsigned long *data, int nblocks)
-{
- TRACE_FUN(ft_t_any);
- unsigned long s[3];
-
- if (!compute_syndromes(data, nblocks, s)) {
- TRACE_ABORT(0, ft_bug,
- "Internal Error: syndrome self-check failed");
- }
- TRACE_EXIT 1;
-}
-
-#endif /* defined(ECC_SANITY_CHECK) || defined(ECC_PARANOID) */
-
-/* Compute the parity for an entire segment of data.
- */
-int ftape_ecc_set_segment_parity(struct memory_segment *mseg)
-{
- int i;
- __u8 *parity_bytes;
-
- parity_bytes = &mseg->data[(mseg->blocks - 3) * FT_SECTOR_SIZE];
- for (i = 0; i < FT_SECTOR_SIZE; i += sizeof(long)) {
- set_parity((unsigned long *) &mseg->data[i], mseg->blocks - 3,
- (unsigned long *) &parity_bytes[i],
- FT_SECTOR_SIZE / sizeof(long));
-#ifdef ECC_PARANOID
- if (!sanity_check((unsigned long *) &mseg->data[i],
- mseg->blocks)) {
- return -1;
- }
-#endif /* ECC_PARANOID */
- }
- return 0;
-}
-
-
-/* Checks and corrects (if possible) the segment MSEG. Returns one of
- * ECC_OK, ECC_CORRECTED, and ECC_FAILED.
- */
-int ftape_ecc_correct_data(struct memory_segment *mseg)
-{
- int col, i, result;
- int ncorrected = 0;
- int nerasures = 0; /* # of erasures (CRC errors) */
- int erasure_loc[3]; /* erasure locations */
- unsigned long ss[3];
- __u8 s[3];
- Matrix Ainv;
- TRACE_FUN(ft_t_flow);
-
- mseg->corrected = 0;
-
- /* find first column that has non-zero syndromes: */
- for (col = 0; col < FT_SECTOR_SIZE; col += sizeof(long)) {
- if (!compute_syndromes((unsigned long *) &mseg->data[col],
- mseg->blocks, ss)) {
- /* something is wrong---have to fix things */
- break;
- }
- }
- if (col >= FT_SECTOR_SIZE) {
- /* all syndromes are ok, therefore nothing to correct */
- TRACE_EXIT ECC_OK;
- }
- /* count the number of CRC errors if there were any: */
- if (mseg->read_bad) {
- for (i = 0; i < mseg->blocks; i++) {
- if (BAD_CHECK(mseg->read_bad, i)) {
- if (nerasures >= 3) {
- /* this is too much for ECC */
- TRACE_ABORT(ECC_FAILED, ft_t_err,
- "ECC failed (>3 CRC errors)");
- } /* if */
- erasure_loc[nerasures++] = i;
- }
- }
- }
- /*
- * If there are at least 2 CRC errors, determine inverse of matrix
- * of linear system to be solved:
- */
- switch (nerasures) {
- case 2:
- if (!gfinv2(erasure_loc[0], erasure_loc[1], Ainv)) {
- TRACE_EXIT ECC_FAILED;
- }
- break;
- case 3:
- if (!gfinv3(erasure_loc[0], erasure_loc[1],
- erasure_loc[2], Ainv)) {
- TRACE_EXIT ECC_FAILED;
- }
- break;
- default:
- /* this is not an error condition... */
- break;
- }
-
- do {
- for (i = 0; i < sizeof(long); ++i) {
- s[0] = ss[0];
- s[1] = ss[1];
- s[2] = ss[2];
- if (s[0] | s[1] | s[2]) {
-#ifdef BIG_ENDIAN
- result = correct_block(
- &mseg->data[col + sizeof(long) - 1 - i],
- mseg->blocks,
- nerasures,
- erasure_loc,
- Ainv,
- s,
- &mseg->corrected);
-#else
- result = correct_block(&mseg->data[col + i],
- mseg->blocks,
- nerasures,
- erasure_loc,
- Ainv,
- s,
- &mseg->corrected);
-#endif
- if (result < 0) {
- TRACE_EXIT ECC_FAILED;
- }
- ncorrected += result;
- }
- ss[0] >>= 8;
- ss[1] >>= 8;
- ss[2] >>= 8;
- }
-
-#ifdef ECC_SANITY_CHECK
- if (!sanity_check((unsigned long *) &mseg->data[col],
- mseg->blocks)) {
- TRACE_EXIT ECC_FAILED;
- }
-#endif /* ECC_SANITY_CHECK */
-
- /* find next column with non-zero syndromes: */
- while ((col += sizeof(long)) < FT_SECTOR_SIZE) {
- if (!compute_syndromes((unsigned long *)
- &mseg->data[col], mseg->blocks, ss)) {
- /* something is wrong---have to fix things */
- break;
- }
- }
- } while (col < FT_SECTOR_SIZE);
- if (ncorrected && nerasures == 0) {
- TRACE(ft_t_warn, "block contained error not caught by CRC");
- }
- TRACE((ncorrected > 0) ? ft_t_noise : ft_t_any, "number of corrections: %d", ncorrected);
- TRACE_EXIT ncorrected ? ECC_CORRECTED : ECC_OK;
-}
diff --git a/drivers/char/ftape/lowlevel/ftape-ecc.h b/drivers/char/ftape/lowlevel/ftape-ecc.h
deleted file mode 100644
index 4829146fe9a..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-ecc.h
+++ /dev/null
@@ -1,84 +0,0 @@
-#ifndef _FTAPE_ECC_H_
-#define _FTAPE_ECC_H_
-
-/*
- * Copyright (C) 1993 Ning and David Mosberger.
- * Original:
- * Copyright (C) 1993 Bas Laarhoven.
- * Copyright (C) 1992 David L. Brown, Jr.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2, or (at
- your option) any later version.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139,
- USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-ecc.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:11 $
- *
- * This file contains the definitions for the
- * Reed-Solomon error correction code
- * for the QIC-40/80 tape streamer device driver.
- */
-
-#include "../lowlevel/ftape-bsm.h"
-
-#define BAD_CLEAR(entry) ((entry)=0)
-#define BAD_SET(entry,sector) ((entry)|=(1<<(sector)))
-#define BAD_CHECK(entry,sector) ((entry)&(1<<(sector)))
-
-/*
- * Return values for ecc_correct_data:
- */
-enum {
- ECC_OK, /* Data was correct. */
- ECC_CORRECTED, /* Correctable error in data. */
- ECC_FAILED, /* Could not correct data. */
-};
-
-/*
- * Representation of an in memory segment. MARKED_BAD lists the
- * sectors that were marked bad during formatting. If the N-th sector
- * in a segment is marked bad, bit 1<<N will be set in MARKED_BAD.
- * The sectors should be read in from the disk and packed, as if the
- * bad sectors were not there, and the segment just contained fewer
- * sectors. READ_SECTORS is a bitmap of errors encountered while
- * reading the data. These offsets are relative to the packed data.
- * BLOCKS is a count of the sectors not marked bad. This is just to
- * prevent having to count the zero bits in MARKED_BAD each time this
- * is needed. DATA is the actual sector packed data from (or to) the
- * tape.
- */
- struct memory_segment {
- SectorMap marked_bad;
- SectorMap read_bad;
- int blocks;
- __u8 *data;
- SectorMap corrected;
- };
-
-/*
- * ecc.c defined global variables:
- */
-#ifdef TEST
-extern int ftape_ecc_tracing;
-#endif
-
-/*
- * ecc.c defined global functions:
- */
-extern int ftape_ecc_correct_data(struct memory_segment *data);
-extern int ftape_ecc_set_segment_parity(struct memory_segment *data);
-
-#endif /* _FTAPE_ECC_H_ */
diff --git a/drivers/char/ftape/lowlevel/ftape-format.c b/drivers/char/ftape/lowlevel/ftape-format.c
deleted file mode 100644
index 5dd4c59a3f3..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-format.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/*
- * Copyright (C) 1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-format.c,v $
- * $Revision: 1.2.4.1 $
- * $Date: 1997/11/14 16:05:39 $
- *
- * This file contains the code to support formatting of floppy
- * tape cartridges with the QIC-40/80/3010/3020 floppy-tape
- * driver "ftape" for Linux.
- */
-
-#include <linux/string.h>
-#include <linux/errno.h>
-
-#include <linux/ftape.h>
-#include <linux/qic117.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-ecc.h"
-#include "../lowlevel/ftape-bsm.h"
-#include "../lowlevel/ftape-format.h"
-
-#if defined(TESTING)
-#define FT_FMT_SEGS_PER_BUF 50
-#else
-#define FT_FMT_SEGS_PER_BUF (FT_BUFF_SIZE/(4*FT_SECTORS_PER_SEGMENT))
-#endif
-
-static spinlock_t ftape_format_lock;
-
-/*
- * first segment of the new buffer
- */
-static int switch_segment;
-
-/*
- * at most 256 segments fit into one 32 kb buffer. Even TR-1 cartridges have
- * more than this many segments per track, so better be careful.
- *
- * buffer_struct *buff: buffer to store the formatting coordinates in
- * int start: starting segment for this buffer.
- * int spt: segments per track
- *
- * Note: segment ids are relative to the start of the track here.
- */
-static void setup_format_buffer(buffer_struct *buff, int start, int spt,
- __u8 gap3)
-{
- int to_do = spt - start;
- TRACE_FUN(ft_t_flow);
-
- if (to_do > FT_FMT_SEGS_PER_BUF) {
- to_do = FT_FMT_SEGS_PER_BUF;
- }
- buff->ptr = buff->address;
- buff->remaining = to_do * FT_SECTORS_PER_SEGMENT; /* # sectors */
- buff->bytes = buff->remaining * 4; /* need 4 bytes per sector */
- buff->gap3 = gap3;
- buff->segment_id = start;
- buff->next_segment = start + to_do;
- if (buff->next_segment >= spt) {
- buff->next_segment = 0; /* 0 means: stop runner */
- }
- buff->status = waiting; /* tells the isr that it can use
- * this buffer
- */
- TRACE_EXIT;
-}
-
-
-/*
- * start formatting a new track.
- */
-int ftape_format_track(const unsigned int track, const __u8 gap3)
-{
- unsigned long flags;
- buffer_struct *tail, *head;
- int status;
- TRACE_FUN(ft_t_flow);
-
- TRACE_CATCH(ftape_ready_wait(ftape_timeout.pause, &status),);
- if (track & 1) {
- if (!(status & QIC_STATUS_AT_EOT)) {
- TRACE_CATCH(ftape_seek_to_eot(),);
- }
- } else {
- if (!(status & QIC_STATUS_AT_BOT)) {
- TRACE_CATCH(ftape_seek_to_bot(),);
- }
- }
- ftape_abort_operation(); /* this sets ft_head = ft_tail = 0 */
- ftape_set_state(formatting);
-
- TRACE(ft_t_noise,
- "Formatting track %d, logical: from segment %d to %d",
- track, track * ft_segments_per_track,
- (track + 1) * ft_segments_per_track - 1);
-
- /*
- * initialize the buffer switching protocol for this track
- */
- head = ftape_get_buffer(ft_queue_head); /* tape isn't running yet */
- tail = ftape_get_buffer(ft_queue_tail); /* tape isn't running yet */
- switch_segment = 0;
- do {
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- setup_format_buffer(tail, switch_segment,
- ft_segments_per_track, gap3);
- switch_segment = tail->next_segment;
- } while ((switch_segment != 0) &&
- ((tail = ftape_next_buffer(ft_queue_tail)) != head));
- /* go */
- head->status = formatting;
- TRACE_CATCH(ftape_seek_head_to_track(track),);
- TRACE_CATCH(ftape_command(QIC_LOGICAL_FORWARD),);
- spin_lock_irqsave(&ftape_format_lock, flags);
- TRACE_CATCH(fdc_setup_formatting(head), restore_flags(flags));
- spin_unlock_irqrestore(&ftape_format_lock, flags);
- TRACE_EXIT 0;
-}
-
-/* return segment id of segment currently being formatted and do the
- * buffer switching stuff.
- */
-int ftape_format_status(unsigned int *segment_id)
-{
- buffer_struct *tail = ftape_get_buffer(ft_queue_tail);
- int result;
- TRACE_FUN(ft_t_flow);
-
- while (switch_segment != 0 &&
- ftape_get_buffer(ft_queue_head) != tail) {
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- /* need more buffers, first wait for empty buffer
- */
- TRACE_CATCH(ftape_wait_segment(formatting),);
- /* don't worry for gap3. If we ever hit this piece of code,
- * then all buffer already have the correct gap3 set!
- */
- setup_format_buffer(tail, switch_segment,
- ft_segments_per_track, tail->gap3);
- switch_segment = tail->next_segment;
- if (switch_segment != 0) {
- tail = ftape_next_buffer(ft_queue_tail);
- }
- }
- /* should runner stop ?
- */
- if (ft_runner_status == aborting || ft_runner_status == do_abort) {
- buffer_struct *head = ftape_get_buffer(ft_queue_head);
- TRACE(ft_t_warn, "Error formatting segment %d",
- ftape_get_buffer(ft_queue_head)->segment_id);
- (void)ftape_abort_operation();
- TRACE_EXIT (head->status != error) ? -EAGAIN : -EIO;
- }
- /*
- * don't care if the timer expires, this is just kind of a
- * "select" operation that lets the calling process sleep
- * until something has happened
- */
- if (fdc_interrupt_wait(5 * FT_SECOND) < 0) {
- TRACE(ft_t_noise, "End of track %d at segment %d",
- ft_location.track,
- ftape_get_buffer(ft_queue_head)->segment_id);
- result = 1; /* end of track, unlock module */
- } else {
- result = 0;
- }
- /*
- * the calling process should use the seg id to determine
- * which parts of the dma buffers can be safely overwritten
- * with new data.
- */
- *segment_id = ftape_get_buffer(ft_queue_head)->segment_id;
- /*
- * Internally we start counting segment ids from the start of
- * each track when formatting, but externally we keep them
- * relative to the start of the tape:
- */
- *segment_id += ft_location.track * ft_segments_per_track;
- TRACE_EXIT result;
-}
-
-/*
- * The segment id is relative to the start of the tape
- */
-int ftape_verify_segment(const unsigned int segment_id, SectorMap *bsm)
-{
- int result;
- int verify_done = 0;
- TRACE_FUN(ft_t_flow);
-
- TRACE(ft_t_noise, "Verifying segment %d", segment_id);
-
- if (ft_driver_state != verifying) {
- TRACE(ft_t_noise, "calling ftape_abort_operation");
- if (ftape_abort_operation() < 0) {
- TRACE(ft_t_err, "ftape_abort_operation failed");
- TRACE_EXIT -EIO;
- }
- }
- *bsm = 0x00000000;
- ftape_set_state(verifying);
- for (;;) {
- buffer_struct *tail;
- /*
- * Allow escape from this loop on signal
- */
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- /*
- * Search all full buffers for the first matching the
- * wanted segment. Clear other buffers on the fly.
- */
- tail = ftape_get_buffer(ft_queue_tail);
- while (!verify_done && tail->status == done) {
- /*
- * Allow escape from this loop on signal !
- */
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- if (tail->segment_id == segment_id) {
- /* If out buffer is already full,
- * return its contents.
- */
- TRACE(ft_t_flow, "found segment in cache: %d",
- segment_id);
- if ((tail->soft_error_map |
- tail->hard_error_map) != 0) {
- TRACE(ft_t_info,"bsm[%d] = 0x%08lx",
- segment_id,
- (unsigned long)
- (tail->soft_error_map |
- tail->hard_error_map));
- *bsm = (tail->soft_error_map |
- tail->hard_error_map);
- }
- verify_done = 1;
- } else {
- TRACE(ft_t_flow,"zapping segment in cache: %d",
- tail->segment_id);
- }
- tail->status = waiting;
- tail = ftape_next_buffer(ft_queue_tail);
- }
- if (!verify_done && tail->status == verifying) {
- if (tail->segment_id == segment_id) {
- switch(ftape_wait_segment(verifying)) {
- case 0:
- break;
- case -EINTR:
- TRACE_ABORT(-EINTR, ft_t_warn,
- "interrupted by "
- "non-blockable signal");
- break;
- default:
- ftape_abort_operation();
- ftape_set_state(verifying);
- /* be picky */
- TRACE_ABORT(-EIO, ft_t_warn,
- "wait_segment failed");
- }
- } else {
- /* We're reading the wrong segment,
- * stop runner.
- */
- TRACE(ft_t_noise, "verifying wrong segment");
- ftape_abort_operation();
- ftape_set_state(verifying);
- }
- }
- /* should runner stop ?
- */
- if (ft_runner_status == aborting) {
- buffer_struct *head = ftape_get_buffer(ft_queue_head);
- if (head->status == error ||
- head->status == verifying) {
- /* no data or overrun error */
- head->status = waiting;
- }
- TRACE_CATCH(ftape_dumb_stop(),);
- } else {
- /* If just passed last segment on tape: wait
- * for BOT or EOT mark. Sets ft_runner_status to
- * idle if at lEOT and successful
- */
- TRACE_CATCH(ftape_handle_logical_eot(),);
- }
- if (verify_done) {
- TRACE_EXIT 0;
- }
- /* Now at least one buffer is idle!
- * Restart runner & tape if needed.
- */
- /* We could optimize the following a little bit. We know that
- * the bad sector map is empty.
- */
- tail = ftape_get_buffer(ft_queue_tail);
- if (tail->status == waiting) {
- buffer_struct *head = ftape_get_buffer(ft_queue_head);
-
- ftape_setup_new_segment(head, segment_id, -1);
- ftape_calc_next_cluster(head);
- if (ft_runner_status == idle) {
- result = ftape_start_tape(segment_id,
- head->sector_offset);
- switch(result) {
- case 0:
- break;
- case -ETIME:
- case -EINTR:
- TRACE_ABORT(result, ft_t_err, "Error: "
- "segment %d unreachable",
- segment_id);
- break;
- default:
- *bsm = EMPTY_SEGMENT;
- TRACE_EXIT 0;
- break;
- }
- }
- head->status = verifying;
- fdc_setup_read_write(head, FDC_VERIFY);
- }
- }
- /* not reached */
- TRACE_EXIT -EIO;
-}
diff --git a/drivers/char/ftape/lowlevel/ftape-format.h b/drivers/char/ftape/lowlevel/ftape-format.h
deleted file mode 100644
index f1516156664..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-format.h
+++ /dev/null
@@ -1,37 +0,0 @@
-#ifndef _FTAPE_FORMAT_H
-#define _FTAPE_FORMAT_H
-
-/*
- * Copyright (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-format.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:13 $
- *
- * This file contains the low level definitions for the
- * formatting support for the QIC-40/80/3010/3020 floppy-tape
- * driver "ftape" for Linux.
- */
-
-#ifdef __KERNEL__
-extern int ftape_format_track(const unsigned int track, const __u8 gap3);
-extern int ftape_format_status(unsigned int *segment_id);
-extern int ftape_verify_segment(const unsigned int segment_id, SectorMap *bsm);
-#endif /* __KERNEL__ */
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-init.c b/drivers/char/ftape/lowlevel/ftape-init.c
deleted file mode 100644
index 4998132a81d..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-init.c
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * This file contains the code that interfaces the kernel
- * for the QIC-40/80/3010/3020 floppy-tape driver for Linux.
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/major.h>
-
-#include <linux/ftape.h>
-#include <linux/init.h>
-#include <linux/qic117.h>
-#ifdef CONFIG_ZFTAPE
-#include <linux/zftape.h>
-#endif
-
-#include "../lowlevel/ftape-init.h"
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-read.h"
-#include "../lowlevel/ftape-write.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/fdc-io.h"
-#include "../lowlevel/ftape-buffer.h"
-#include "../lowlevel/ftape-proc.h"
-#include "../lowlevel/ftape-tracing.h"
-
-
-#if defined(MODULE) && !defined(CONFIG_FT_NO_TRACE_AT_ALL)
-static int ft_tracing = -1;
-#endif
-
-
-/* Called by modules package when installing the driver
- * or by kernel during the initialization phase
- */
-static int __init ftape_init(void)
-{
- TRACE_FUN(ft_t_flow);
-
-#ifdef MODULE
-#ifndef CONFIG_FT_NO_TRACE_AT_ALL
- if (ft_tracing != -1) {
- ftape_tracing = ft_tracing;
- }
-#endif
- printk(KERN_INFO FTAPE_VERSION "\n");
- if (TRACE_LEVEL >= ft_t_info) {
- printk(
-KERN_INFO "(c) 1993-1996 Bas Laarhoven (bas@vimec.nl)\n"
-KERN_INFO "(c) 1995-1996 Kai Harrekilde-Petersen (khp@dolphinics.no)\n"
-KERN_INFO "(c) 1996-1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de)\n"
-KERN_INFO "QIC-117 driver for QIC-40/80/3010/3020 floppy tape drives\n");
- }
-#else /* !MODULE */
- /* print a short no-nonsense boot message */
- printk(KERN_INFO FTAPE_VERSION "\n");
-#endif /* MODULE */
- TRACE(ft_t_info, "installing QIC-117 floppy tape hardware drive ... ");
- TRACE(ft_t_info, "ftape_init @ 0x%p", ftape_init);
- /* Allocate the DMA buffers. They are deallocated at cleanup() time.
- */
-#ifdef TESTING
-#ifdef MODULE
- while (ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS) < 0) {
- ftape_sleep(FT_SECOND/20);
- if (signal_pending(current)) {
- (void)ftape_set_nr_buffers(0);
- TRACE(ft_t_bug,
- "Killed by signal while allocating buffers.");
- TRACE_ABORT(-EINTR,
- ft_t_bug, "Free up memory and retry");
- }
- }
-#else
- TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS),
- (void)ftape_set_nr_buffers(0));
-#endif
-#else
- TRACE_CATCH(ftape_set_nr_buffers(CONFIG_FT_NR_BUFFERS),
- (void)ftape_set_nr_buffers(0));
-#endif
- ft_drive_sel = -1;
- ft_failure = 1; /* inhibit any operation but open */
- ftape_udelay_calibrate(); /* must be before fdc_wait_calibrate ! */
- fdc_wait_calibrate();
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS)
- (void)ftape_proc_init();
-#endif
-#ifdef CONFIG_ZFTAPE
- (void)zft_init();
-#endif
- TRACE_EXIT 0;
-}
-
-module_param(ft_fdc_base, uint, 0);
-MODULE_PARM_DESC(ft_fdc_base, "Base address of FDC controller.");
-module_param(ft_fdc_irq, uint, 0);
-MODULE_PARM_DESC(ft_fdc_irq, "IRQ (interrupt channel) to use.");
-module_param(ft_fdc_dma, uint, 0);
-MODULE_PARM_DESC(ft_fdc_dma, "DMA channel to use.");
-module_param(ft_fdc_threshold, uint, 0);
-MODULE_PARM_DESC(ft_fdc_threshold, "Threshold of the FDC Fifo.");
-module_param(ft_fdc_rate_limit, uint, 0);
-MODULE_PARM_DESC(ft_fdc_rate_limit, "Maximal data rate for FDC.");
-module_param(ft_probe_fc10, bool, 0);
-MODULE_PARM_DESC(ft_probe_fc10,
- "If non-zero, probe for a Colorado FC-10/FC-20 controller.");
-module_param(ft_mach2, bool, 0);
-MODULE_PARM_DESC(ft_mach2,
- "If non-zero, probe for a Mountain MACH-2 controller.");
-#if defined(MODULE) && !defined(CONFIG_FT_NO_TRACE_AT_ALL)
-module_param(ft_tracing, int, 0644);
-MODULE_PARM_DESC(ft_tracing,
- "Amount of debugging output, 0 <= tracing <= 8, default 3.");
-#endif
-
-MODULE_AUTHOR(
- "(c) 1993-1996 Bas Laarhoven (bas@vimec.nl), "
- "(c) 1995-1996 Kai Harrekilde-Petersen (khp@dolphinics.no), "
- "(c) 1996, 1997 Claus-Justus Heine (claus@momo.math.rwth-aachen.de)");
-MODULE_DESCRIPTION(
- "QIC-117 driver for QIC-40/80/3010/3020 floppy tape drives.");
-MODULE_LICENSE("GPL");
-
-static void __exit ftape_exit(void)
-{
- TRACE_FUN(ft_t_flow);
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS)
- ftape_proc_destroy();
-#endif
- (void)ftape_set_nr_buffers(0);
- printk(KERN_INFO "ftape: unloaded.\n");
- TRACE_EXIT;
-}
-
-module_init(ftape_init);
-module_exit(ftape_exit);
diff --git a/drivers/char/ftape/lowlevel/ftape-init.h b/drivers/char/ftape/lowlevel/ftape-init.h
deleted file mode 100644
index 99a7b8ab086..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-init.h
+++ /dev/null
@@ -1,43 +0,0 @@
-#ifndef _FTAPE_INIT_H
-#define _FTAPE_INIT_H
-
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-init.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:16 $
- *
- * This file contains the definitions for the interface to
- * the Linux kernel for floppy tape driver ftape.
- *
- */
-
-#include <linux/linkage.h>
-#include <linux/signal.h>
-
-#define _NEVER_BLOCK (sigmask(SIGKILL) | sigmask(SIGSTOP))
-#define _DONT_BLOCK (_NEVER_BLOCK | sigmask(SIGINT))
-#define _DO_BLOCK (sigmask(SIGPIPE))
-
-#ifndef QIC117_TAPE_MAJOR
-#define QIC117_TAPE_MAJOR 27
-#endif
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-io.c b/drivers/char/ftape/lowlevel/ftape-io.c
deleted file mode 100644
index 259015aeff5..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-io.c
+++ /dev/null
@@ -1,992 +0,0 @@
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996 Kai Harrekilde-Petersen,
- * (C) 1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-io.c,v $
- * $Revision: 1.4 $
- * $Date: 1997/11/11 14:02:36 $
- *
- * This file contains the general control functions for the
- * QIC-40/80/3010/3020 floppy-tape driver "ftape" for Linux.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/system.h>
-#include <linux/ioctl.h>
-#include <linux/mtio.h>
-#include <linux/delay.h>
-
-#include <linux/ftape.h>
-#include <linux/qic117.h>
-#include "../lowlevel/ftape-tracing.h"
-#include "../lowlevel/fdc-io.h"
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-rw.h"
-#include "../lowlevel/ftape-write.h"
-#include "../lowlevel/ftape-read.h"
-#include "../lowlevel/ftape-init.h"
-#include "../lowlevel/ftape-calibr.h"
-
-/* Global vars.
- */
-/* NOTE: sectors start numbering at 1, all others at 0 ! */
-ft_timeout_table ftape_timeout;
-unsigned int ftape_tape_len;
-volatile qic117_cmd_t ftape_current_command;
-const struct qic117_command_table qic117_cmds[] = QIC117_COMMANDS;
-int ftape_might_be_off_track;
-
-/* Local vars.
- */
-static int diagnostic_mode;
-static unsigned int ftape_udelay_count;
-static unsigned int ftape_udelay_time;
-
-void ftape_udelay(unsigned int usecs)
-{
- volatile int count = (ftape_udelay_count * usecs +
- ftape_udelay_count - 1) / ftape_udelay_time;
- volatile int i;
-
- while (count-- > 0) {
- for (i = 0; i < 20; ++i);
- }
-}
-
-void ftape_udelay_calibrate(void)
-{
- ftape_calibrate("ftape_udelay",
- ftape_udelay, &ftape_udelay_count, &ftape_udelay_time);
-}
-
-/* Delay (msec) routine.
- */
-void ftape_sleep(unsigned int time)
-{
- TRACE_FUN(ft_t_any);
-
- time *= 1000; /* msecs -> usecs */
- if (time < FT_USPT) {
- /* Time too small for scheduler, do a busy wait ! */
- ftape_udelay(time);
- } else {
- long timeout;
- unsigned long flags;
- unsigned int ticks = (time + FT_USPT - 1) / FT_USPT;
-
- TRACE(ft_t_any, "%d msec, %d ticks", time/1000, ticks);
- timeout = ticks;
- save_flags(flags);
- sti();
- msleep_interruptible(jiffies_to_msecs(timeout));
- /* Mmm. Isn't current->blocked == 0xffffffff ?
- */
- if (signal_pending(current)) {
- TRACE(ft_t_err, "awoken by non-blocked signal :-(");
- }
- restore_flags(flags);
- }
- TRACE_EXIT;
-}
-
-/* send a command or parameter to the drive
- * Generates # of step pulses.
- */
-static inline int ft_send_to_drive(int arg)
-{
- /* Always wait for a command_timeout period to separate
- * individuals commands and/or parameters.
- */
- ftape_sleep(3 * FT_MILLISECOND);
- /* Keep cylinder nr within range, step towards home if possible.
- */
- if (ftape_current_cylinder >= arg) {
- return fdc_seek(ftape_current_cylinder - arg);
- } else {
- return fdc_seek(ftape_current_cylinder + arg);
- }
-}
-
-/* forward */ int ftape_report_raw_drive_status(int *status);
-
-static int ft_check_cmd_restrictions(qic117_cmd_t command)
-{
- int status = -1;
- TRACE_FUN(ft_t_any);
-
- TRACE(ft_t_flow, "%s", qic117_cmds[command].name);
- /* A new motion command during an uninterruptible (motion)
- * command requires a ready status before the new command can
- * be issued. Otherwise a new motion command needs to be
- * checked against required status.
- */
- if (qic117_cmds[command].cmd_type == motion &&
- qic117_cmds[ftape_current_command].non_intr) {
- ftape_report_raw_drive_status(&status);
- if ((status & QIC_STATUS_READY) == 0) {
- TRACE(ft_t_noise,
- "motion cmd (%d) during non-intr cmd (%d)",
- command, ftape_current_command);
- TRACE(ft_t_noise, "waiting until drive gets ready");
- ftape_ready_wait(ftape_timeout.seek,
- &status);
- }
- }
- if (qic117_cmds[command].mask != 0) {
- __u8 difference;
- /* Some commands do require a certain status:
- */
- if (status == -1) { /* not yet set */
- ftape_report_raw_drive_status(&status);
- }
- difference = ((status ^ qic117_cmds[command].state) &
- qic117_cmds[command].mask);
- /* Wait until the drive gets
- * ready. This may last forever if
- * the drive never gets ready...
- */
- while ((difference & QIC_STATUS_READY) != 0) {
- TRACE(ft_t_noise, "command %d issued while not ready",
- command);
- TRACE(ft_t_noise, "waiting until drive gets ready");
- if (ftape_ready_wait(ftape_timeout.seek,
- &status) == -EINTR) {
- /* Bail out on signal !
- */
- TRACE_ABORT(-EINTR, ft_t_warn,
- "interrupted by non-blockable signal");
- }
- difference = ((status ^ qic117_cmds[command].state) &
- qic117_cmds[command].mask);
- }
- while ((difference & QIC_STATUS_ERROR) != 0) {
- int err;
- qic117_cmd_t cmd;
-
- TRACE(ft_t_noise,
- "command %d issued while error pending",
- command);
- TRACE(ft_t_noise, "clearing error status");
- ftape_report_error(&err, &cmd, 1);
- ftape_report_raw_drive_status(&status);
- difference = ((status ^ qic117_cmds[command].state) &
- qic117_cmds[command].mask);
- if ((difference & QIC_STATUS_ERROR) != 0) {
- /* Bail out on fatal signal !
- */
- FT_SIGNAL_EXIT(_NEVER_BLOCK);
- }
- }
- if (difference) {
- /* Any remaining difference can't be solved
- * here.
- */
- if (difference & (QIC_STATUS_CARTRIDGE_PRESENT |
- QIC_STATUS_NEW_CARTRIDGE |
- QIC_STATUS_REFERENCED)) {
- TRACE(ft_t_warn,
- "Fatal: tape removed or reinserted !");
- ft_failure = 1;
- } else {
- TRACE(ft_t_err, "wrong state: 0x%02x should be: 0x%02x",
- status & qic117_cmds[command].mask,
- qic117_cmds[command].state);
- }
- TRACE_EXIT -EIO;
- }
- if (~status & QIC_STATUS_READY & qic117_cmds[command].mask) {
- TRACE_ABORT(-EBUSY, ft_t_err, "Bad: still busy!");
- }
- }
- TRACE_EXIT 0;
-}
-
-/* Issue a tape command:
- */
-int ftape_command(qic117_cmd_t command)
-{
- int result = 0;
- static int level;
- TRACE_FUN(ft_t_any);
-
- if ((unsigned int)command > NR_ITEMS(qic117_cmds)) {
- /* This is a bug we'll want to know about too.
- */
- TRACE_ABORT(-EIO, ft_t_bug, "bug - bad command: %d", command);
- }
- if (++level > 5) { /* This is a bug we'll want to know about. */
- --level;
- TRACE_ABORT(-EIO, ft_t_bug, "bug - recursion for command: %d",
- command);
- }
- /* disable logging and restriction check for some commands,
- * check all other commands that have a prescribed starting
- * status.
- */
- if (diagnostic_mode) {
- TRACE(ft_t_flow, "diagnostic command %d", command);
- } else if (command == QIC_REPORT_DRIVE_STATUS ||
- command == QIC_REPORT_NEXT_BIT) {
- TRACE(ft_t_any, "%s", qic117_cmds[command].name);
- } else {
- TRACE_CATCH(ft_check_cmd_restrictions(command), --level);
- }
- /* Now all conditions are met or result was < 0.
- */
- result = ft_send_to_drive((unsigned int)command);
- if (qic117_cmds[command].cmd_type == motion &&
- command != QIC_LOGICAL_FORWARD && command != QIC_STOP_TAPE) {
- ft_location.known = 0;
- }
- ftape_current_command = command;
- --level;
- TRACE_EXIT result;
-}
-
-/* Send a tape command parameter:
- * Generates command # of step pulses.
- * Skips tape-status call !
- */
-int ftape_parameter(unsigned int parameter)
-{
- TRACE_FUN(ft_t_any);
-
- TRACE(ft_t_flow, "called with parameter = %d", parameter);
- TRACE_EXIT ft_send_to_drive(parameter + 2);
-}
-
-/* Wait for the drive to get ready.
- * timeout time in milli-seconds
- * Returned status is valid if result != -EIO
- *
- * Should we allow to be killed by SIGINT? (^C)
- * Would be nice at least for large timeouts.
- */
-int ftape_ready_wait(unsigned int timeout, int *status)
-{
- unsigned long t0;
- unsigned int poll_delay;
- int signal_retries;
- TRACE_FUN(ft_t_any);
-
- /* the following ** REALLY ** reduces the system load when
- * e.g. one simply rewinds or retensions. The tape is slow
- * anyway. It is really not necessary to detect error
- * conditions with 1/10 seconds granularity
- *
- * On my AMD 133MHZ 486: 100 ms: 23% system load
- * 1 sec: 5%
- * 5 sec: 0.6%, yeah
- */
- if (timeout <= FT_SECOND) {
- poll_delay = 100 * FT_MILLISECOND;
- signal_retries = 20; /* two seconds */
- } else if (timeout < 20 * FT_SECOND) {
- TRACE(ft_t_flow, "setting poll delay to 1 second");
- poll_delay = FT_SECOND;
- signal_retries = 2; /* two seconds */
- } else {
- TRACE(ft_t_flow, "setting poll delay to 5 seconds");
- poll_delay = 5 * FT_SECOND;
- signal_retries = 1; /* five seconds */
- }
- for (;;) {
- t0 = jiffies;
- TRACE_CATCH(ftape_report_raw_drive_status(status),);
- if (*status & QIC_STATUS_READY) {
- TRACE_EXIT 0;
- }
- if (!signal_retries--) {
- FT_SIGNAL_EXIT(_NEVER_BLOCK);
- }
- if ((int)timeout >= 0) {
- /* this will fail when jiffies wraps around about
- * once every year :-)
- */
- timeout -= ((jiffies - t0) * FT_SECOND) / HZ;
- if (timeout <= 0) {
- TRACE_ABORT(-ETIME, ft_t_err, "timeout");
- }
- ftape_sleep(poll_delay);
- timeout -= poll_delay;
- } else {
- ftape_sleep(poll_delay);
- }
- }
- TRACE_EXIT -ETIME;
-}
-
-/* Issue command and wait up to timeout milli seconds for drive ready
- */
-int ftape_command_wait(qic117_cmd_t command, unsigned int timeout, int *status)
-{
- int result;
-
- /* Drive should be ready, issue command
- */
- result = ftape_command(command);
- if (result >= 0) {
- result = ftape_ready_wait(timeout, status);
- }
- return result;
-}
-
-static int ftape_parameter_wait(unsigned int parm, unsigned int timeout, int *status)
-{
- int result;
-
- /* Drive should be ready, issue command
- */
- result = ftape_parameter(parm);
- if (result >= 0) {
- result = ftape_ready_wait(timeout, status);
- }
- return result;
-}
-
-/*--------------------------------------------------------------------------
- * Report operations
- */
-
-/* Query the drive about its status. The command is sent and
- result_length bits of status are returned (2 extra bits are read
- for start and stop). */
-
-int ftape_report_operation(int *status,
- qic117_cmd_t command,
- int result_length)
-{
- int i, st3;
- unsigned int t0;
- unsigned int dt;
- TRACE_FUN(ft_t_any);
-
- TRACE_CATCH(ftape_command(command),);
- t0 = ftape_timestamp();
- i = 0;
- do {
- ++i;
- ftape_sleep(3 * FT_MILLISECOND); /* see remark below */
- TRACE_CATCH(fdc_sense_drive_status(&st3),);
- dt = ftape_timediff(t0, ftape_timestamp());
- /* Ack should be asserted within Ttimout + Tack = 6 msec.
- * Looks like some drives fail to do this so extend this
- * period to 300 msec.
- */
- } while (!(st3 & ST3_TRACK_0) && dt < 300000);
- if (!(st3 & ST3_TRACK_0)) {
- TRACE(ft_t_err,
- "No acknowledge after %u msec. (%i iter)", dt / 1000, i);
- TRACE_ABORT(-EIO, ft_t_err, "timeout on Acknowledge");
- }
- /* dt may be larger than expected because of other tasks
- * scheduled while we were sleeping.
- */
- if (i > 1 && dt > 6000) {
- TRACE(ft_t_err, "Acknowledge after %u msec. (%i iter)",
- dt / 1000, i);
- }
- *status = 0;
- for (i = 0; i < result_length + 1; i++) {
- TRACE_CATCH(ftape_command(QIC_REPORT_NEXT_BIT),);
- TRACE_CATCH(fdc_sense_drive_status(&st3),);
- if (i < result_length) {
- *status |= ((st3 & ST3_TRACK_0) ? 1 : 0) << i;
- } else if ((st3 & ST3_TRACK_0) == 0) {
- TRACE_ABORT(-EIO, ft_t_err, "missing status stop bit");
- }
- }
- /* this command will put track zero and index back into normal state */
- (void)ftape_command(QIC_REPORT_NEXT_BIT);
- TRACE_EXIT 0;
-}
-
-/* Report the current drive status. */
-
-int ftape_report_raw_drive_status(int *status)
-{
- int result;
- int count = 0;
- TRACE_FUN(ft_t_any);
-
- do {
- result = ftape_report_operation(status,
- QIC_REPORT_DRIVE_STATUS, 8);
- } while (result < 0 && ++count <= 3);
- if (result < 0) {
- TRACE_ABORT(-EIO, ft_t_err,
- "report_operation failed after %d trials", count);
- }
- if ((*status & 0xff) == 0xff) {
- TRACE_ABORT(-EIO, ft_t_err,
- "impossible drive status 0xff");
- }
- if (*status & QIC_STATUS_READY) {
- ftape_current_command = QIC_NO_COMMAND; /* completed */
- }
- ft_last_status.status.drive_status = (__u8)(*status & 0xff);
- TRACE_EXIT 0;
-}
-
-int ftape_report_drive_status(int *status)
-{
- TRACE_FUN(ft_t_any);
-
- TRACE_CATCH(ftape_report_raw_drive_status(status),);
- if (*status & QIC_STATUS_NEW_CARTRIDGE ||
- !(*status & QIC_STATUS_CARTRIDGE_PRESENT)) {
- ft_failure = 1; /* will inhibit further operations */
- TRACE_EXIT -EIO;
- }
- if (*status & QIC_STATUS_READY && *status & QIC_STATUS_ERROR) {
- /* Let caller handle all errors */
- TRACE_ABORT(1, ft_t_warn, "warning: error status set!");
- }
- TRACE_EXIT 0;
-}
-
-int ftape_report_error(unsigned int *error,
- qic117_cmd_t *command, int report)
-{
- static const ftape_error ftape_errors[] = QIC117_ERRORS;
- int code;
- TRACE_FUN(ft_t_any);
-
- TRACE_CATCH(ftape_report_operation(&code, QIC_REPORT_ERROR_CODE, 16),);
- *error = (unsigned int)(code & 0xff);
- *command = (qic117_cmd_t)((code>>8)&0xff);
- /* remember hardware status, maybe useful for status ioctls
- */
- ft_last_error.error.command = (__u8)*command;
- ft_last_error.error.error = (__u8)*error;
- if (!report) {
- TRACE_EXIT 0;
- }
- if (*error == 0) {
- TRACE_ABORT(0, ft_t_info, "No error");
- }
- TRACE(ft_t_info, "errorcode: %d", *error);
- if (*error < NR_ITEMS(ftape_errors)) {
- TRACE(ft_t_noise, "%sFatal ERROR:",
- (ftape_errors[*error].fatal ? "" : "Non-"));
- TRACE(ft_t_noise, "%s ...", ftape_errors[*error].message);
- } else {
- TRACE(ft_t_noise, "Unknown ERROR !");
- }
- if ((unsigned int)*command < NR_ITEMS(qic117_cmds) &&
- qic117_cmds[*command].name != NULL) {
- TRACE(ft_t_noise, "... caused by command \'%s\'",
- qic117_cmds[*command].name);
- } else {
- TRACE(ft_t_noise, "... caused by unknown command %d",
- *command);
- }
- TRACE_EXIT 0;
-}
-
-int ftape_report_configuration(qic_model *model,
- unsigned int *rate,
- int *qic_std,
- int *tape_len)
-{
- int result;
- int config;
- int status;
- static const unsigned int qic_rates[ 4] = { 250, 2000, 500, 1000 };
- TRACE_FUN(ft_t_any);
-
- result = ftape_report_operation(&config,
- QIC_REPORT_DRIVE_CONFIGURATION, 8);
- if (result < 0) {
- ft_last_status.status.drive_config = (__u8)0x00;
- *model = prehistoric;
- *rate = 500;
- *qic_std = QIC_TAPE_QIC40;
- *tape_len = 205;
- TRACE_EXIT 0;
- } else {
- ft_last_status.status.drive_config = (__u8)(config & 0xff);
- }
- *rate = qic_rates[(config & QIC_CONFIG_RATE_MASK) >> QIC_CONFIG_RATE_SHIFT];
- result = ftape_report_operation(&status, QIC_REPORT_TAPE_STATUS, 8);
- if (result < 0) {
- ft_last_status.status.tape_status = (__u8)0x00;
- /* pre- QIC117 rev C spec. drive, QIC_CONFIG_80 bit is valid.
- */
- *qic_std = (config & QIC_CONFIG_80) ?
- QIC_TAPE_QIC80 : QIC_TAPE_QIC40;
- /* ?? how's about 425ft tapes? */
- *tape_len = (config & QIC_CONFIG_LONG) ? 307 : 0;
- *model = pre_qic117c;
- result = 0;
- } else {
- ft_last_status.status.tape_status = (__u8)(status & 0xff);
- *model = post_qic117b;
- TRACE(ft_t_any, "report tape status result = %02x", status);
- /* post- QIC117 rev C spec. drive, QIC_CONFIG_80 bit is
- * invalid.
- */
- switch (status & QIC_TAPE_STD_MASK) {
- case QIC_TAPE_QIC40:
- case QIC_TAPE_QIC80:
- case QIC_TAPE_QIC3020:
- case QIC_TAPE_QIC3010:
- *qic_std = status & QIC_TAPE_STD_MASK;
- break;
- default:
- *qic_std = -1;
- break;
- }
- switch (status & QIC_TAPE_LEN_MASK) {
- case QIC_TAPE_205FT:
- /* 205 or 425+ ft 550 Oe tape */
- *tape_len = 0;
- break;
- case QIC_TAPE_307FT:
- /* 307.5 ft 550 Oe Extended Length (XL) tape */
- *tape_len = 307;
- break;
- case QIC_TAPE_VARIABLE:
- /* Variable length 550 Oe tape */
- *tape_len = 0;
- break;
- case QIC_TAPE_1100FT:
- /* 1100 ft 550 Oe tape */
- *tape_len = 1100;
- break;
- case QIC_TAPE_FLEX:
- /* Variable length 900 Oe tape */
- *tape_len = 0;
- break;
- default:
- *tape_len = -1;
- break;
- }
- if (*qic_std == -1 || *tape_len == -1) {
- TRACE(ft_t_any,
- "post qic-117b spec drive with unknown tape");
- }
- result = *tape_len == -1 ? -EIO : 0;
- if (status & QIC_TAPE_WIDE) {
- switch (*qic_std) {
- case QIC_TAPE_QIC80:
- TRACE(ft_t_info, "TR-1 tape detected");
- break;
- case QIC_TAPE_QIC3010:
- TRACE(ft_t_info, "TR-2 tape detected");
- break;
- case QIC_TAPE_QIC3020:
- TRACE(ft_t_info, "TR-3 tape detected");
- break;
- default:
- TRACE(ft_t_warn,
- "Unknown Travan tape type detected");
- break;
- }
- }
- }
- TRACE_EXIT (result < 0) ? -EIO : 0;
-}
-
-static int ftape_report_rom_version(int *version)
-{
-
- if (ftape_report_operation(version, QIC_REPORT_ROM_VERSION, 8) < 0) {
- return -EIO;
- } else {
- return 0;
- }
-}
-
-void ftape_report_vendor_id(unsigned int *id)
-{
- int result;
- TRACE_FUN(ft_t_any);
-
- /* We'll try to get a vendor id from the drive. First
- * according to the QIC-117 spec, a 16-bit id is requested.
- * If that fails we'll try an 8-bit version, otherwise we'll
- * try an undocumented query.
- */
- result = ftape_report_operation((int *) id, QIC_REPORT_VENDOR_ID, 16);
- if (result < 0) {
- result = ftape_report_operation((int *) id,
- QIC_REPORT_VENDOR_ID, 8);
- if (result < 0) {
- /* The following is an undocumented call found
- * in the CMS code.
- */
- result = ftape_report_operation((int *) id, 24, 8);
- if (result < 0) {
- *id = UNKNOWN_VENDOR;
- } else {
- TRACE(ft_t_noise, "got old 8 bit id: %04x",
- *id);
- *id |= 0x20000;
- }
- } else {
- TRACE(ft_t_noise, "got 8 bit id: %04x", *id);
- *id |= 0x10000;
- }
- } else {
- TRACE(ft_t_noise, "got 16 bit id: %04x", *id);
- }
- if (*id == 0x0047) {
- int version;
- int sign;
-
- if (ftape_report_rom_version(&version) < 0) {
- TRACE(ft_t_bug, "report rom version failed");
- TRACE_EXIT;
- }
- TRACE(ft_t_noise, "CMS rom version: %d", version);
- ftape_command(QIC_ENTER_DIAGNOSTIC_1);
- ftape_command(QIC_ENTER_DIAGNOSTIC_1);
- diagnostic_mode = 1;
- if (ftape_report_operation(&sign, 9, 8) < 0) {
- unsigned int error;
- qic117_cmd_t command;
-
- ftape_report_error(&error, &command, 1);
- ftape_command(QIC_ENTER_PRIMARY_MODE);
- diagnostic_mode = 0;
- TRACE_EXIT; /* failure ! */
- } else {
- TRACE(ft_t_noise, "CMS signature: %02x", sign);
- }
- if (sign == 0xa5) {
- result = ftape_report_operation(&sign, 37, 8);
- if (result < 0) {
- if (version >= 63) {
- *id = 0x8880;
- TRACE(ft_t_noise,
- "This is an Iomega drive !");
- } else {
- *id = 0x0047;
- TRACE(ft_t_noise,
- "This is a real CMS drive !");
- }
- } else {
- *id = 0x0047;
- TRACE(ft_t_noise, "CMS status: %d", sign);
- }
- } else {
- *id = UNKNOWN_VENDOR;
- }
- ftape_command(QIC_ENTER_PRIMARY_MODE);
- diagnostic_mode = 0;
- }
- TRACE_EXIT;
-}
-
-static int qic_rate_code(unsigned int rate)
-{
- switch (rate) {
- case 250:
- return QIC_CONFIG_RATE_250;
- case 500:
- return QIC_CONFIG_RATE_500;
- case 1000:
- return QIC_CONFIG_RATE_1000;
- case 2000:
- return QIC_CONFIG_RATE_2000;
- default:
- return QIC_CONFIG_RATE_500;
- }
-}
-
-static int ftape_set_rate_test(unsigned int *max_rate)
-{
- unsigned int error;
- qic117_cmd_t command;
- int status;
- int supported = 0;
- TRACE_FUN(ft_t_any);
-
- /* Check if the drive does support the select rate command
- * by testing all different settings. If any one is accepted
- * we assume the command is supported, else not.
- */
- for (*max_rate = 2000; *max_rate >= 250; *max_rate /= 2) {
- if (ftape_command(QIC_SELECT_RATE) < 0) {
- continue;
- }
- if (ftape_parameter_wait(qic_rate_code(*max_rate),
- 1 * FT_SECOND, &status) < 0) {
- continue;
- }
- if (status & QIC_STATUS_ERROR) {
- ftape_report_error(&error, &command, 0);
- continue;
- }
- supported = 1; /* did accept a request */
- break;
- }
- TRACE(ft_t_noise, "Select Rate command is%s supported",
- supported ? "" : " not");
- TRACE_EXIT supported;
-}
-
-int ftape_set_data_rate(unsigned int new_rate /* Kbps */, unsigned int qic_std)
-{
- int status;
- int result = 0;
- unsigned int data_rate = new_rate;
- static int supported;
- int rate_changed = 0;
- qic_model dummy_model;
- unsigned int dummy_qic_std, dummy_tape_len;
- TRACE_FUN(ft_t_any);
-
- if (ft_drive_max_rate == 0) { /* first time */
- supported = ftape_set_rate_test(&ft_drive_max_rate);
- }
- if (supported) {
- ftape_command(QIC_SELECT_RATE);
- result = ftape_parameter_wait(qic_rate_code(new_rate),
- 1 * FT_SECOND, &status);
- if (result >= 0 && !(status & QIC_STATUS_ERROR)) {
- rate_changed = 1;
- }
- }
- TRACE_CATCH(result = ftape_report_configuration(&dummy_model,
- &data_rate,
- &dummy_qic_std,
- &dummy_tape_len),);
- if (data_rate != new_rate) {
- if (!supported) {
- TRACE(ft_t_warn, "Rate change not supported!");
- } else if (rate_changed) {
- TRACE(ft_t_warn, "Requested: %d, got %d",
- new_rate, data_rate);
- } else {
- TRACE(ft_t_warn, "Rate change failed!");
- }
- result = -EINVAL;
- }
- /*
- * Set data rate and write precompensation as specified:
- *
- * | QIC-40/80 | QIC-3010/3020
- * rate | precomp | precomp
- * ----------+-------------+--------------
- * 250 Kbps. | 250 ns. | 0 ns.
- * 500 Kbps. | 125 ns. | 0 ns.
- * 1 Mbps. | 42 ns. | 0 ns.
- * 2 Mbps | N/A | 0 ns.
- */
- if ((qic_std == QIC_TAPE_QIC40 && data_rate > 500) ||
- (qic_std == QIC_TAPE_QIC80 && data_rate > 1000)) {
- TRACE_ABORT(-EINVAL,
- ft_t_warn, "Datarate too high for QIC-mode");
- }
- TRACE_CATCH(fdc_set_data_rate(data_rate),_res = -EINVAL);
- ft_data_rate = data_rate;
- if (qic_std == QIC_TAPE_QIC40 || qic_std == QIC_TAPE_QIC80) {
- switch (data_rate) {
- case 250:
- fdc_set_write_precomp(250);
- break;
- default:
- case 500:
- fdc_set_write_precomp(125);
- break;
- case 1000:
- fdc_set_write_precomp(42);
- break;
- }
- } else {
- fdc_set_write_precomp(0);
- }
- TRACE_EXIT result;
-}
-
-/* The next two functions are used to cope with excessive overrun errors
- */
-int ftape_increase_threshold(void)
-{
- TRACE_FUN(ft_t_flow);
-
- if (fdc.type < i82077 || ft_fdc_threshold >= 12) {
- TRACE_ABORT(-EIO, ft_t_err, "cannot increase fifo threshold");
- }
- if (fdc_fifo_threshold(++ft_fdc_threshold, NULL, NULL, NULL) < 0) {
- TRACE(ft_t_err, "cannot increase fifo threshold");
- ft_fdc_threshold --;
- fdc_reset();
- }
- TRACE(ft_t_info, "New FIFO threshold: %d", ft_fdc_threshold);
- TRACE_EXIT 0;
-}
-
-int ftape_half_data_rate(void)
-{
- if (ft_data_rate < 500) {
- return -1;
- }
- if (ftape_set_data_rate(ft_data_rate / 2, ft_qic_std) < 0) {
- return -EIO;
- }
- ftape_calc_timeouts(ft_qic_std, ft_data_rate, ftape_tape_len);
- return 0;
-}
-
-/* Seek the head to the specified track.
- */
-int ftape_seek_head_to_track(unsigned int track)
-{
- int status;
- TRACE_FUN(ft_t_any);
-
- ft_location.track = -1; /* remains set in case of error */
- if (track >= ft_tracks_per_tape) {
- TRACE_ABORT(-EINVAL, ft_t_bug, "track out of bounds");
- }
- TRACE(ft_t_flow, "seeking track %d", track);
- TRACE_CATCH(ftape_command(QIC_SEEK_HEAD_TO_TRACK),);
- TRACE_CATCH(ftape_parameter_wait(track, ftape_timeout.head_seek,
- &status),);
- ft_location.track = track;
- ftape_might_be_off_track = 0;
- TRACE_EXIT 0;
-}
-
-int ftape_wakeup_drive(wake_up_types method)
-{
- int status;
- int motor_on = 0;
- TRACE_FUN(ft_t_any);
-
- switch (method) {
- case wake_up_colorado:
- TRACE_CATCH(ftape_command(QIC_PHANTOM_SELECT),);
- TRACE_CATCH(ftape_parameter(0 /* ft_drive_sel ?? */),);
- break;
- case wake_up_mountain:
- TRACE_CATCH(ftape_command(QIC_SOFT_SELECT),);
- ftape_sleep(FT_MILLISECOND); /* NEEDED */
- TRACE_CATCH(ftape_parameter(18),);
- break;
- case wake_up_insight:
- ftape_sleep(100 * FT_MILLISECOND);
- motor_on = 1;
- fdc_motor(motor_on); /* enable is done by motor-on */
- case no_wake_up:
- break;
- default:
- TRACE_EXIT -ENODEV; /* unknown wakeup method */
- break;
- }
- /* If wakeup succeeded we shouldn't get an error here..
- */
- TRACE_CATCH(ftape_report_raw_drive_status(&status),
- if (motor_on) {
- fdc_motor(0);
- });
- TRACE_EXIT 0;
-}
-
-int ftape_put_drive_to_sleep(wake_up_types method)
-{
- TRACE_FUN(ft_t_any);
-
- switch (method) {
- case wake_up_colorado:
- TRACE_CATCH(ftape_command(QIC_PHANTOM_DESELECT),);
- break;
- case wake_up_mountain:
- TRACE_CATCH(ftape_command(QIC_SOFT_DESELECT),);
- break;
- case wake_up_insight:
- fdc_motor(0); /* enable is done by motor-on */
- case no_wake_up: /* no wakeup / no sleep ! */
- break;
- default:
- TRACE_EXIT -ENODEV; /* unknown wakeup method */
- }
- TRACE_EXIT 0;
-}
-
-int ftape_reset_drive(void)
-{
- int result = 0;
- int status;
- unsigned int err_code;
- qic117_cmd_t err_command;
- int i;
- TRACE_FUN(ft_t_any);
-
- /* We want to re-establish contact with our drive. Fire a
- * number of reset commands (single step pulses) and pray for
- * success.
- */
- for (i = 0; i < 2; ++i) {
- TRACE(ft_t_flow, "Resetting fdc");
- fdc_reset();
- ftape_sleep(10 * FT_MILLISECOND);
- TRACE(ft_t_flow, "Reset command to drive");
- result = ftape_command(QIC_RESET);
- if (result == 0) {
- ftape_sleep(1 * FT_SECOND); /* drive not
- * accessible
- * during 1 second
- */
- TRACE(ft_t_flow, "Re-selecting drive");
-
- /* Strange, the QIC-117 specs don't mention
- * this but the drive gets deselected after a
- * soft reset ! So we need to enable it
- * again.
- */
- if (ftape_wakeup_drive(ft_drive_type.wake_up) < 0) {
- TRACE(ft_t_err, "Wakeup failed !");
- }
- TRACE(ft_t_flow, "Waiting until drive gets ready");
- result= ftape_ready_wait(ftape_timeout.reset, &status);
- if (result == 0 && (status & QIC_STATUS_ERROR)) {
- result = ftape_report_error(&err_code,
- &err_command, 1);
- if (result == 0 && err_code == 27) {
- /* Okay, drive saw reset
- * command and responded as it
- * should
- */
- break;
- } else {
- result = -EIO;
- }
- } else {
- result = -EIO;
- }
- }
- FT_SIGNAL_EXIT(_DONT_BLOCK);
- }
- if (result != 0) {
- TRACE(ft_t_err, "General failure to reset tape drive");
- } else {
- /* Restore correct settings: keep original rate
- */
- ftape_set_data_rate(ft_data_rate, ft_qic_std);
- }
- ftape_init_drive_needed = 1;
- TRACE_EXIT result;
-}
diff --git a/drivers/char/ftape/lowlevel/ftape-io.h b/drivers/char/ftape/lowlevel/ftape-io.h
deleted file mode 100644
index 26a7baad871..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-io.h
+++ /dev/null
@@ -1,90 +0,0 @@
-#ifndef _FTAPE_IO_H
-#define _FTAPE_IO_H
-
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-io.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:18 $
- *
- * This file contains definitions for the glue part of the
- * QIC-40/80/3010/3020 floppy-tape driver "ftape" for Linux.
- */
-
-#include <linux/qic117.h>
-#include <linux/ftape-vendors.h>
-
-typedef struct {
- unsigned int seek;
- unsigned int reset;
- unsigned int rewind;
- unsigned int head_seek;
- unsigned int stop;
- unsigned int pause;
-} ft_timeout_table;
-
-typedef enum {
- prehistoric, pre_qic117c, post_qic117b, post_qic117d
-} qic_model;
-
-/*
- * ftape-io.c defined global vars.
- */
-extern ft_timeout_table ftape_timeout;
-extern unsigned int ftape_tape_len;
-extern volatile qic117_cmd_t ftape_current_command;
-extern const struct qic117_command_table qic117_cmds[];
-extern int ftape_might_be_off_track;
-
-/*
- * ftape-io.c defined global functions.
- */
-extern void ftape_udelay(unsigned int usecs);
-extern void ftape_udelay_calibrate(void);
-extern void ftape_sleep(unsigned int time);
-extern void ftape_report_vendor_id(unsigned int *id);
-extern int ftape_command(qic117_cmd_t command);
-extern int ftape_command_wait(qic117_cmd_t command,
- unsigned int timeout,
- int *status);
-extern int ftape_parameter(unsigned int parameter);
-extern int ftape_report_operation(int *status,
- qic117_cmd_t command,
- int result_length);
-extern int ftape_report_configuration(qic_model *model,
- unsigned int *rate,
- int *qic_std,
- int *tape_len);
-extern int ftape_report_drive_status(int *status);
-extern int ftape_report_raw_drive_status(int *status);
-extern int ftape_report_status(int *status);
-extern int ftape_ready_wait(unsigned int timeout, int *status);
-extern int ftape_seek_head_to_track(unsigned int track);
-extern int ftape_set_data_rate(unsigned int new_rate, unsigned int qic_std);
-extern int ftape_report_error(unsigned int *error,
- qic117_cmd_t *command,
- int report);
-extern int ftape_reset_drive(void);
-extern int ftape_put_drive_to_sleep(wake_up_types method);
-extern int ftape_wakeup_drive(wake_up_types method);
-extern int ftape_increase_threshold(void);
-extern int ftape_half_data_rate(void);
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-proc.c b/drivers/char/ftape/lowlevel/ftape-proc.c
deleted file mode 100644
index e805b15e0a1..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-proc.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/*
- * Copyright (C) 1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-proc.c,v $
- * $Revision: 1.11 $
- * $Date: 1997/10/24 14:47:37 $
- *
- * This file contains the procfs interface for the
- * QIC-40/80/3010/3020 floppy-tape driver "ftape" for Linux.
-
- * Old code removed, switched to dynamic proc entry.
- */
-
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS)
-
-#include <linux/proc_fs.h>
-
-#include <linux/ftape.h>
-#include <linux/init.h>
-#include <linux/qic117.h>
-
-#include "../lowlevel/ftape-io.h"
-#include "../lowlevel/ftape-ctl.h"
-#include "../lowlevel/ftape-proc.h"
-#include "../lowlevel/ftape-tracing.h"
-
-static size_t get_driver_info(char *buf)
-{
- const char *debug_level[] = { "bugs" ,
- "errors",
- "warnings",
- "informational",
- "noisy",
- "program flow",
- "fdc and dma",
- "data flow",
- "anything" };
-
- return sprintf(buf,
- "version : %s\n"
- "used data rate: %d kbit/sec\n"
- "dma memory : %d kb\n"
- "debug messages: %s\n",
- FTAPE_VERSION,
- ft_data_rate,
- FT_BUFF_SIZE * ft_nr_buffers >> 10,
- debug_level[TRACE_LEVEL]);
-}
-
-static size_t get_tapedrive_info(char *buf)
-{
- return sprintf(buf,
- "vendor id : 0x%04x\n"
- "drive name: %s\n"
- "wind speed: %d ips\n"
- "wakeup : %s\n"
- "max. rate : %d kbit/sec\n",
- ft_drive_type.vendor_id,
- ft_drive_type.name,
- ft_drive_type.speed,
- ((ft_drive_type.wake_up == no_wake_up)
- ? "No wakeup needed" :
- ((ft_drive_type.wake_up == wake_up_colorado)
- ? "Colorado" :
- ((ft_drive_type.wake_up == wake_up_mountain)
- ? "Mountain" :
- ((ft_drive_type.wake_up == wake_up_insight)
- ? "Motor on" :
- "Unknown")))),
- ft_drive_max_rate);
-}
-
-static size_t get_cartridge_info(char *buf)
-{
- if (ftape_init_drive_needed) {
- return sprintf(buf, "uninitialized\n");
- }
- if (ft_no_tape) {
- return sprintf(buf, "no cartridge inserted\n");
- }
- return sprintf(buf,
- "segments : %5d\n"
- "tracks : %5d\n"
- "length : %5dft\n"
- "formatted : %3s\n"
- "writable : %3s\n"
- "QIC spec. : QIC-%s\n"
- "fmt-code : %1d\n",
- ft_segments_per_track,
- ft_tracks_per_tape,
- ftape_tape_len,
- (ft_formatted == 1) ? "yes" : "no",
- (ft_write_protected == 1) ? "no" : "yes",
- ((ft_qic_std == QIC_TAPE_QIC40) ? "40" :
- ((ft_qic_std == QIC_TAPE_QIC80) ? "80" :
- ((ft_qic_std == QIC_TAPE_QIC3010) ? "3010" :
- ((ft_qic_std == QIC_TAPE_QIC3020) ? "3020" :
- "???")))),
- ft_format_code);
-}
-
-static size_t get_controller_info(char *buf)
-{
- const char *fdc_name[] = { "no fdc",
- "i8272",
- "i82077",
- "i82077AA",
- "Colorado FC-10 or FC-20",
- "i82078",
- "i82078_1" };
-
- return sprintf(buf,
- "FDC type : %s\n"
- "FDC base : 0x%03x\n"
- "FDC irq : %d\n"
- "FDC dma : %d\n"
- "FDC thr. : %d\n"
- "max. rate : %d kbit/sec\n",
- ft_mach2 ? "Mountain MACH-2" : fdc_name[fdc.type],
- fdc.sra, fdc.irq, fdc.dma,
- ft_fdc_threshold, ft_fdc_max_rate);
-}
-
-static size_t get_history_info(char *buf)
-{
- size_t len;
-
- len = sprintf(buf,
- "\nFDC isr statistics\n"
- " id_am_errors : %3d\n"
- " id_crc_errors : %3d\n"
- " data_am_errors : %3d\n"
- " data_crc_errors : %3d\n"
- " overrun_errors : %3d\n"
- " no_data_errors : %3d\n"
- " retries : %3d\n",
- ft_history.id_am_errors, ft_history.id_crc_errors,
- ft_history.data_am_errors, ft_history.data_crc_errors,
- ft_history.overrun_errors, ft_history.no_data_errors,
- ft_history.retries);
- len += sprintf(buf + len,
- "\nECC statistics\n"
- " crc_errors : %3d\n"
- " crc_failures : %3d\n"
- " ecc_failures : %3d\n"
- " sectors corrected: %3d\n",
- ft_history.crc_errors, ft_history.crc_failures,
- ft_history.ecc_failures, ft_history.corrected);
- len += sprintf(buf + len,
- "\ntape quality statistics\n"
- " media defects : %3d\n",
- ft_history.defects);
- len += sprintf(buf + len,
- "\ntape motion statistics\n"
- " repositions : %3d\n",
- ft_history.rewinds);
- return len;
-}
-
-static int ftape_read_proc(char *page, char **start, off_t off,
- int count, int *eof, void *data)
-{
- char *ptr = page;
- size_t len;
-
- ptr += sprintf(ptr, "Kernel Driver\n\n");
- ptr += get_driver_info(ptr);
- ptr += sprintf(ptr, "\nTape Drive\n\n");
- ptr += get_tapedrive_info(ptr);
- ptr += sprintf(ptr, "\nFDC Controller\n\n");
- ptr += get_controller_info(ptr);
- ptr += sprintf(ptr, "\nTape Cartridge\n\n");
- ptr += get_cartridge_info(ptr);
- ptr += sprintf(ptr, "\nHistory Record\n\n");
- ptr += get_history_info(ptr);
-
- len = strlen(page);
- *start = NULL;
- if (off+count >= len) {
- *eof = 1;
- } else {
- *eof = 0;
- }
- return len;
-}
-
-int __init ftape_proc_init(void)
-{
- return create_proc_read_entry("ftape", 0, &proc_root,
- ftape_read_proc, NULL) != NULL;
-}
-
-void ftape_proc_destroy(void)
-{
- remove_proc_entry("ftape", &proc_root);
-}
-
-#endif /* defined(CONFIG_PROC_FS) && defined(CONFIG_FT_PROC_FS) */
diff --git a/drivers/char/ftape/lowlevel/ftape-proc.h b/drivers/char/ftape/lowlevel/ftape-proc.h
deleted file mode 100644
index 264dfcc1d22..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-proc.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#ifndef _FTAPE_PROC_H
-#define _FTAPE_PROC_H
-
-/*
- * Copyright (C) 1997 Claus-Justus Heine
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- *
- * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/ftape-proc.h,v $
- * $Revision: 1.2 $
- * $Date: 1997/10/05 19:18:20 $
- *
- * This file contains definitions for the procfs interface of the
- * QIC-40/80/3010/3020 floppy-tape driver "ftape" for Linux.
- */
-
-#include <linux/proc_fs.h>
-
-extern int ftape_proc_init(void);
-extern void ftape_proc_destroy(void);
-
-#endif
diff --git a/drivers/char/ftape/lowlevel/ftape-read.c b/drivers/char/ftape/lowlevel/ftape-read.c
deleted file mode 100644
index d967d8cd86d..00000000000
--- a/drivers/char/ftape/lowlevel/ftape-read.c
+++ /dev/null
@@ -1,621 +0,0 @@
-/*
- * Copyright (C) 1993-1996 Bas Laarhoven,
- * (C) 1996-1997 Claus-Justus Heine.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warr