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Diffstat (limited to 'drivers/cdrom/mcdx.h')
| -rw-r--r-- | drivers/cdrom/mcdx.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/drivers/cdrom/mcdx.h b/drivers/cdrom/mcdx.h new file mode 100644 index 000000000000..83c364a74dc4 --- /dev/null +++ b/drivers/cdrom/mcdx.h @@ -0,0 +1,185 @@ +/* + * Definitions for the Mitsumi CDROM interface + * Copyright (C) 1995 1996 Heiko Schlittermann <heiko@lotte.sax.de> + * VERSION: @VERSION@ + * + * 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. + * + * Thanks to + * The Linux Community at all and ... + * Martin Harris (he wrote the first Mitsumi Driver) + * Eberhard Moenkeberg (he gave me much support and the initial kick) + * Bernd Huebner, Ruediger Helsch (Unifix-Software Gmbh, they + * improved the original driver) + * Jon Tombs, Bjorn Ekwall (module support) + * Daniel v. Mosnenck (he sent me the Technical and Programming Reference) + * Gerd Knorr (he lent me his PhotoCD) + * Nils Faerber and Roger E. Wolff (extensively tested the LU portion) + * Andreas Kies (testing the mysterious hang up's) + * ... somebody forgotten? + * Marcin Dalecki + * + */ + +/* + * The following lines are for user configuration + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * {0|1} -- 1 if you want the driver detect your drive, may crash and + * needs a long time to seek. The higher the address the longer the + * seek. + * + * WARNING: AUTOPROBE doesn't work. + */ +#define MCDX_AUTOPROBE 0 + +/* + * Drive specific settings according to the jumpers on the controller + * board(s). + * o MCDX_NDRIVES : number of used entries of the following table + * o MCDX_DRIVEMAP : table of {i/o base, irq} per controller + * + * NOTE: I didn't get a drive at irq 9(2) working. Not even alone. + */ +#if MCDX_AUTOPROBE == 0 + #define MCDX_NDRIVES 1 + #define MCDX_DRIVEMAP { \ + {0x300, 11}, \ + {0x304, 05}, \ + {0x000, 00}, \ + {0x000, 00}, \ + {0x000, 00}, \ + } +#else + #error Autoprobing is not implemented yet. +#endif + +#ifndef MCDX_QUIET +#define MCDX_QUIET 1 +#endif + +#ifndef MCDX_DEBUG +#define MCDX_DEBUG 0 +#endif + +/* *** make the following line uncommented, if you're sure, + * *** all configuration is done */ +/* #define I_WAS_HERE */ + +/* The name of the device */ +#define MCDX "mcdx" + +/* Flags for DEBUGGING */ +#define INIT 0 +#define MALLOC 0 +#define IOCTL 0 +#define PLAYTRK 0 +#define SUBCHNL 0 +#define TOCHDR 0 +#define MS 0 +#define PLAYMSF 0 +#define READTOC 0 +#define OPENCLOSE 0 +#define HW 0 +#define TALK 0 +#define IRQ 0 +#define XFER 0 +#define REQUEST 0 +#define SLEEP 0 + +/* The following addresses are taken from the Mitsumi Reference + * and describe the possible i/o range for the controller. + */ +#define MCDX_IO_BEGIN ((char*) 0x300) /* first base of i/o addr */ +#define MCDX_IO_END ((char*) 0x3fc) /* last base of i/o addr */ + +/* Per controller 4 bytes i/o are needed. */ +#define MCDX_IO_SIZE 4 + +/* + * Bits + */ + +/* The status byte, returned from every command, set if + * the description is true */ +#define MCDX_RBIT_OPEN 0x80 /* door is open */ +#define MCDX_RBIT_DISKSET 0x40 /* disk set (recognised) */ +#define MCDX_RBIT_CHANGED 0x20 /* disk was changed */ +#define MCDX_RBIT_CHECK 0x10 /* disk rotates, servo is on */ +#define MCDX_RBIT_AUDIOTR 0x08 /* current track is audio */ +#define MCDX_RBIT_RDERR 0x04 /* read error, refer SENSE KEY */ +#define MCDX_RBIT_AUDIOBS 0x02 /* currently playing audio */ +#define MCDX_RBIT_CMDERR 0x01 /* command, param or format error */ + +/* The I/O Register holding the h/w status of the drive, + * can be read at i/o base + 1 */ +#define MCDX_RBIT_DOOR 0x10 /* door is open */ +#define MCDX_RBIT_STEN 0x04 /* if 0, i/o base contains drive status */ +#define MCDX_RBIT_DTEN 0x02 /* if 0, i/o base contains data */ + +/* + * The commands. + */ + +#define OPCODE 1 /* offset of opcode */ +#define MCDX_CMD_REQUEST_TOC 1, 0x10 +#define MCDX_CMD_REQUEST_STATUS 1, 0x40 +#define MCDX_CMD_RESET 1, 0x60 +#define MCDX_CMD_REQUEST_DRIVE_MODE 1, 0xc2 +#define MCDX_CMD_SET_INTERLEAVE 2, 0xc8, 0 +#define MCDX_CMD_DATAMODE_SET 2, 0xa0, 0 + #define MCDX_DATAMODE1 0x01 + #define MCDX_DATAMODE2 0x02 +#define MCDX_CMD_LOCK_DOOR 2, 0xfe, 0 + +#define READ_AHEAD 4 /* 8 Sectors (4K) */ + +/* Useful macros */ +#define e_door(x) ((x) & MCDX_RBIT_OPEN) +#define e_check(x) (~(x) & MCDX_RBIT_CHECK) +#define e_notset(x) (~(x) & MCDX_RBIT_DISKSET) +#define e_changed(x) ((x) & MCDX_RBIT_CHANGED) +#define e_audio(x) ((x) & MCDX_RBIT_AUDIOTR) +#define e_audiobusy(x) ((x) & MCDX_RBIT_AUDIOBS) +#define e_cmderr(x) ((x) & MCDX_RBIT_CMDERR) +#define e_readerr(x) ((x) & MCDX_RBIT_RDERR) + +/** no drive specific */ +#define MCDX_CDBLK 2048 /* 2048 cooked data each blk */ + +#define MCDX_DATA_TIMEOUT (HZ/10) /* 0.1 second */ + +/* + * Access to the msf array + */ +#define MSF_MIN 0 /* minute */ +#define MSF_SEC 1 /* second */ +#define MSF_FRM 2 /* frame */ + +/* + * Errors + */ +#define MCDX_E 1 /* unspec error */ +#define MCDX_ST_EOM 0x0100 /* end of media */ +#define MCDX_ST_DRV 0x00ff /* mask to query the drive status */ + +#ifndef I_WAS_HERE +#ifndef MODULE +#warning You have not edited mcdx.h +#warning Perhaps irq and i/o settings are wrong. +#endif +#endif + +/* ex:set ts=4 sw=4: */ |