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authorYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>2006-10-02 23:19:00 +0900
committerRalf Baechle <ralf@linux-mips.org>2006-10-03 17:59:17 +0100
commitaf8b128719f5248e542036ea994610a29d0642a6 (patch)
tree1330f156553cba8bccc9132c6a64bf766ed9ca8e /sound/oss
parent08dfcee84c5c747ca1cecbd04c3a7e65cc9ce26b (diff)
[MIPS] Remove IT8172-based platforms, ITE 8172G and Globespan IVR support.
As per feature-removal-schedule.txt. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'sound/oss')
-rw-r--r--sound/oss/Kconfig4
-rw-r--r--sound/oss/Makefile1
-rw-r--r--sound/oss/ite8172.c2261
3 files changed, 0 insertions, 2266 deletions
diff --git a/sound/oss/Kconfig b/sound/oss/Kconfig
index 97e38b66558..f3b3530402c 100644
--- a/sound/oss/Kconfig
+++ b/sound/oss/Kconfig
@@ -115,10 +115,6 @@ config SOUND_HAL2
Say Y or M if you have an SGI Indy or Indigo2 system and want to be able to
use its on-board A2 audio system.
-config SOUND_IT8172
- tristate "IT8172G Sound"
- depends on SOUND_PRIME && (MIPS_ITE8172 || MIPS_IVR)
-
config SOUND_VRC5477
tristate "NEC Vrc5477 AC97 sound"
depends on SOUND_PRIME && DDB5477
diff --git a/sound/oss/Makefile b/sound/oss/Makefile
index 9bf3ee544d8..86811792002 100644
--- a/sound/oss/Makefile
+++ b/sound/oss/Makefile
@@ -77,7 +77,6 @@ obj-$(CONFIG_SOUND_BCM_CS4297A) += swarm_cs4297a.o
obj-$(CONFIG_SOUND_RME96XX) += rme96xx.o
obj-$(CONFIG_SOUND_BT878) += btaudio.o
obj-$(CONFIG_SOUND_ALI5455) += ali5455.o ac97_codec.o
-obj-$(CONFIG_SOUND_IT8172) += ite8172.o ac97_codec.o
obj-$(CONFIG_SOUND_FORTE) += forte.o ac97_codec.o
obj-$(CONFIG_SOUND_AD1980) += ac97_plugin_ad1980.o ac97_codec.o
diff --git a/sound/oss/ite8172.c b/sound/oss/ite8172.c
deleted file mode 100644
index 68aab3605d7..00000000000
--- a/sound/oss/ite8172.c
+++ /dev/null
@@ -1,2261 +0,0 @@
-/*
- * ite8172.c -- ITE IT8172G Sound Driver.
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * stevel@mvista.com or source@mvista.com
- *
- * 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 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- *
- * Module command line parameters:
- *
- * Supported devices:
- * /dev/dsp standard OSS /dev/dsp device
- * /dev/mixer standard OSS /dev/mixer device
- *
- * Notes:
- *
- * 1. Much of the OSS buffer allocation, ioctl's, and mmap'ing are
- * taken, slightly modified or not at all, from the ES1371 driver,
- * so refer to the credits in es1371.c for those. The rest of the
- * code (probe, open, read, write, the ISR, etc.) is new.
- * 2. The following support is untested:
- * * Memory mapping the audio buffers, and the ioctl controls that go
- * with it.
- * * S/PDIF output.
- * * I2S support.
- * 3. The following is not supported:
- * * legacy audio mode.
- * 4. Support for volume button interrupts is implemented but doesn't
- * work yet.
- *
- * Revision history
- * 02.08.2001 Initial release
- * 06.22.2001 Added I2S support
- * 07.30.2003 Removed initialisation to zero for static variables
- * (spdif[NR_DEVICE], i2s_fmt[NR_DEVICE], and devindex)
- */
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/sound.h>
-#include <linux/slab.h>
-#include <linux/soundcard.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/bitops.h>
-#include <linux/proc_fs.h>
-#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
-#include <linux/ac97_codec.h>
-#include <linux/interrupt.h>
-#include <linux/mutex.h>
-
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/uaccess.h>
-#include <asm/it8172/it8172.h>
-
-/* --------------------------------------------------------------------- */
-
-#undef OSS_DOCUMENTED_MIXER_SEMANTICS
-#define IT8172_DEBUG
-#undef IT8172_VERBOSE_DEBUG
-#define DBG(x) {}
-
-#define IT8172_MODULE_NAME "IT8172 audio"
-#define PFX IT8172_MODULE_NAME
-
-#ifdef IT8172_DEBUG
-#define dbg(format, arg...) printk(KERN_DEBUG PFX ": " format "\n" , ## arg)
-#else
-#define dbg(format, arg...) do {} while (0)
-#endif
-#define err(format, arg...) printk(KERN_ERR PFX ": " format "\n" , ## arg)
-#define info(format, arg...) printk(KERN_INFO PFX ": " format "\n" , ## arg)
-#define warn(format, arg...) printk(KERN_WARNING PFX ": " format "\n" , ## arg)
-
-
-#define IT8172_MODULE_NAME "IT8172 audio"
-#define PFX IT8172_MODULE_NAME
-
-#ifdef IT8172_DEBUG
-#define dbg(format, arg...) printk(KERN_DEBUG PFX ": " format "\n" , ## arg)
-#else
-#define dbg(format, arg...) do {} while (0)
-#endif
-#define err(format, arg...) printk(KERN_ERR PFX ": " format "\n" , ## arg)
-#define info(format, arg...) printk(KERN_INFO PFX ": " format "\n" , ## arg)
-#define warn(format, arg...) printk(KERN_WARNING PFX ": " format "\n" , ## arg)
-
-
-static const unsigned sample_shift[] = { 0, 1, 1, 2 };
-
-
-/*
- * Audio Controller register bit definitions follow. See
- * include/asm/it8172/it8172.h for register offsets.
- */
-
-/* PCM Out Volume Reg */
-#define PCMOV_PCMOM (1<<15) /* PCM Out Mute default 1: mute */
-#define PCMOV_PCMRCG_BIT 8 /* PCM Right channel Gain */
-#define PCMOV_PCMRCG_MASK (0x1f<<PCMOV_PCMRCG_BIT)
-#define PCMOV_PCMLCG_BIT 0 /* PCM Left channel gain */
-#define PCMOV_PCMLCG_MASK 0x1f
-
-/* FM Out Volume Reg */
-#define FMOV_FMOM (1<<15) /* FM Out Mute default 1: mute */
-#define FMOV_FMRCG_BIT 8 /* FM Right channel Gain */
-#define FMOV_FMRCG_MASK (0x1f<<FMOV_FMRCG_BIT)
-#define FMOV_FMLCG_BIT 0 /* FM Left channel gain */
-#define FMOV_FMLCG_MASK 0x1f
-
-/* I2S Out Volume Reg */
-#define I2SV_I2SOM (1<<15) /* I2S Out Mute default 1: mute */
-#define I2SV_I2SRCG_BIT 8 /* I2S Right channel Gain */
-#define I2SV_I2SRCG_MASK (0x1f<<I2SV_I2SRCG_BIT)
-#define I2SV_I2SLCG_BIT 0 /* I2S Left channel gain */
-#define I2SV_I2SLCG_MASK 0x1f
-
-/* Digital Recording Source Select Reg */
-#define DRSS_BIT 0
-#define DRSS_MASK 0x07
-#define DRSS_AC97_PRIM 0
-#define DRSS_FM 1
-#define DRSS_I2S 2
-#define DRSS_PCM 3
-#define DRSS_AC97_SEC 4
-
-/* Playback/Capture Channel Control Registers */
-#define CC_SM (1<<15) /* Stereo, Mone 0: mono 1: stereo */
-#define CC_DF (1<<14) /* Data Format 0: 8 bit 1: 16 bit */
-#define CC_FMT_BIT 14
-#define CC_FMT_MASK (0x03<<CC_FMT_BIT)
-#define CC_CF_BIT 12 /* Channel format (Playback only) */
-#define CC_CF_MASK (0x03<<CC_CF_BIT)
-#define CC_CF_2 0
-#define CC_CF_4 (1<<CC_CF_BIT)
-#define CC_CF_6 (2<<CC_CF_BIT)
-#define CC_SR_BIT 8 /* sample Rate */
-#define CC_SR_MASK (0x0f<<CC_SR_BIT)
-#define CC_SR_5500 0
-#define CC_SR_8000 (1<<CC_SR_BIT)
-#define CC_SR_9600 (2<<CC_SR_BIT)
-#define CC_SR_11025 (3<<CC_SR_BIT)
-#define CC_SR_16000 (4<<CC_SR_BIT)
-#define CC_SR_19200 (5<<CC_SR_BIT)
-#define CC_SR_22050 (6<<CC_SR_BIT)
-#define CC_SR_32000 (7<<CC_SR_BIT)
-#define CC_SR_38400 (8<<CC_SR_BIT)
-#define CC_SR_44100 (9<<CC_SR_BIT)
-#define CC_SR_48000 (10<<CC_SR_BIT)
-#define CC_CSP (1<<7) /* Channel stop
- * 0: End of Current buffer
- * 1: Immediately stop when rec stop */
-#define CC_CP (1<<6) /* Channel pause 0: normal, 1: pause */
-#define CC_CA (1<<5) /* Channel Action 0: Stop , 1: start */
-#define CC_CB2L (1<<2) /* Cur. buf. 2 xfr is last 0: No, 1: Yes */
-#define CC_CB1L (1<<1) /* Cur. buf. 1 xfr is last 0: No, 1: Yes */
-#define CC_DE 1 /* DFC/DFIFO Data Empty 1: empty, 0: not empty
- * (Playback only)
- */
-
-/* Codec Control Reg */
-#define CODECC_GME (1<<9) /* AC97 GPIO Mode enable */
-#define CODECC_ATM (1<<8) /* AC97 ATE test mode 0: test 1: normal */
-#define CODECC_WR (1<<6) /* AC97 Warn reset 1: warm reset , 0: Normal */
-#define CODECC_CR (1<<5) /* AC97 Cold reset 1: Cold reset , 0: Normal */
-
-
-/* I2S Control Reg */
-#define I2SMC_SR_BIT 6 /* I2S Sampling rate
- * 00: 48KHz, 01: 44.1 KHz, 10: 32 32 KHz */
-#define I2SMC_SR_MASK (0x03<<I2SMC_SR_BIT)
-#define I2SMC_SR_48000 0
-#define I2SMC_SR_44100 (1<<I2SMC_SR_BIT)
-#define I2SMC_SR_32000 (2<<I2SMC_SR_BIT)
-#define I2SMC_SRSS (1<<5) /* Sample Rate Source Select 1:S/W, 0: H/W */
-#define I2SMC_I2SF_BIT 0 /* I2S Format */
-#define I2SMC_I2SF_MASK 0x03
-#define I2SMC_I2SF_DAC 0
-#define I2SMC_I2SF_ADC 2
-#define I2SMC_I2SF_I2S 3
-
-
-/* Volume up, Down, Mute */
-#define VS_VMP (1<<2) /* Volume mute 1: pushed, 0: not */
-#define VS_VDP (1<<1) /* Volume Down 1: pushed, 0: not */
-#define VS_VUP 1 /* Volime Up 1: pushed, 0: not */
-
-/* SRC, Mixer test control/DFC status reg */
-#define SRCS_DPUSC (1<<5) /* DFC Playback underrun Status/clear */
-#define SRCS_DCOSC (1<<4) /* DFC Capture Overrun Status/clear */
-#define SRCS_SIS (1<<3) /* SRC input select 1: Mixer, 0: Codec I/F */
-#define SRCS_CDIS_BIT 0 /* Codec Data Input Select */
-#define SRCS_CDIS_MASK 0x07
-#define SRCS_CDIS_MIXER 0
-#define SRCS_CDIS_PCM 1
-#define SRCS_CDIS_I2S 2
-#define SRCS_CDIS_FM 3
-#define SRCS_CDIS_DFC 4
-
-
-/* Codec Index Reg command Port */
-#define CIRCP_CID_BIT 10
-#define CIRCP_CID_MASK (0x03<<CIRCP_CID_BIT)
-#define CIRCP_CPS (1<<9) /* Command Port Status 0: ready, 1: busy */
-#define CIRCP_DPVF (1<<8) /* Data Port Valid Flag 0: invalis, 1: valid */
-#define CIRCP_RWC (1<<7) /* Read/write command */
-#define CIRCP_CIA_BIT 0
-#define CIRCP_CIA_MASK 0x007F /* Codec Index Address */
-
-/* Test Mode Control/Test group Select Control */
-
-/* General Control Reg */
-#define GC_VDC_BIT 6 /* Volume Division Control */
-#define GC_VDC_MASK (0x03<<GC_VDC_BIT)
-#define GC_VDC_NONE 0
-#define GC_VDC_DIV2 (1<<GC_VDC_BIT)
-#define GC_VDC_DIV4 (2<<GC_VDC_BIT)
-#define GC_SOE (1<<2) /* S/PDIF Output enable */
-#define GC_SWR 1 /* Software warn reset */
-
-/* Interrupt mask Control Reg */
-#define IMC_VCIM (1<<6) /* Volume CNTL interrupt mask */
-#define IMC_CCIM (1<<1) /* Capture Chan. iterrupt mask */
-#define IMC_PCIM 1 /* Playback Chan. interrupt mask */
-
-/* Interrupt status/clear reg */
-#define ISC_VCI (1<<6) /* Volume CNTL interrupt 1: clears */
-#define ISC_CCI (1<<1) /* Capture Chan. interrupt 1: clears */
-#define ISC_PCI 1 /* Playback Chan. interrupt 1: clears */
-
-/* misc stuff */
-#define POLL_COUNT 0x5000
-
-
-/* --------------------------------------------------------------------- */
-
-/*
- * Define DIGITAL1 as the I2S channel, since it is not listed in
- * soundcard.h.
- */
-#define SOUND_MIXER_I2S SOUND_MIXER_DIGITAL1
-#define SOUND_MASK_I2S SOUND_MASK_DIGITAL1
-#define SOUND_MIXER_READ_I2S MIXER_READ(SOUND_MIXER_I2S)
-#define SOUND_MIXER_WRITE_I2S MIXER_WRITE(SOUND_MIXER_I2S)
-
-/* --------------------------------------------------------------------- */
-
-struct it8172_state {
- /* list of it8172 devices */
- struct list_head devs;
-
- /* the corresponding pci_dev structure */
- struct pci_dev *dev;
-
- /* soundcore stuff */
- int dev_audio;
-
- /* hardware resources */
- unsigned long io;
- unsigned int irq;
-
- /* PCI ID's */
- u16 vendor;
- u16 device;
- u8 rev; /* the chip revision */
-
- /* options */
- int spdif_volume; /* S/PDIF output is enabled if != -1 */
- int i2s_volume; /* current I2S out volume, in OSS format */
- int i2s_recording;/* 1 = recording from I2S, 0 = not */
-
-#ifdef IT8172_DEBUG
- /* debug /proc entry */
- struct proc_dir_entry *ps;
- struct proc_dir_entry *ac97_ps;
-#endif /* IT8172_DEBUG */
-
- struct ac97_codec codec;
-
- unsigned short pcc, capcc;
- unsigned dacrate, adcrate;
-
- spinlock_t lock;
- struct mutex open_mutex;
- mode_t open_mode;
- wait_queue_head_t open_wait;
-
- struct dmabuf {
- void *rawbuf;
- dma_addr_t dmaaddr;
- unsigned buforder;
- unsigned numfrag;
- unsigned fragshift;
- void* nextIn;
- void* nextOut;
- int count;
- int curBufPtr;
- unsigned total_bytes;
- unsigned error; /* over/underrun */
- wait_queue_head_t wait;
- /* redundant, but makes calculations easier */
- unsigned fragsize;
- unsigned dmasize;
- unsigned fragsamples;
- /* OSS stuff */
- unsigned mapped:1;
- unsigned ready:1;
- unsigned stopped:1;
- unsigned ossfragshift;
- int ossmaxfrags;
- unsigned subdivision;
- } dma_dac, dma_adc;
-};
-
-/* --------------------------------------------------------------------- */
-
-static LIST_HEAD(devs);
-
-/* --------------------------------------------------------------------- */
-
-static inline unsigned ld2(unsigned int x)
-{
- unsigned r = 0;
-
- if (x >= 0x10000) {
- x >>= 16;
- r += 16;
- }
- if (x >= 0x100) {
- x >>= 8;
- r += 8;
- }
- if (x >= 0x10) {
- x >>= 4;
- r += 4;
- }
- if (x >= 4) {
- x >>= 2;
- r += 2;
- }
- if (x >= 2)
- r++;
- return r;
-}
-
-/* --------------------------------------------------------------------- */
-
-static void it8172_delay(int msec)
-{
- unsigned long tmo;
- signed long tmo2;
-
- if (in_interrupt())
- return;
-
- tmo = jiffies + (msec*HZ)/1000;
- for (;;) {
- tmo2 = tmo - jiffies;
- if (tmo2 <= 0)
- break;
- schedule_timeout(tmo2);
- }
-}
-
-
-static unsigned short
-get_compat_rate(unsigned* rate)
-{
- unsigned rate_out = *rate;
- unsigned short sr;
-
- if (rate_out >= 46050) {
- sr = CC_SR_48000; rate_out = 48000;
- } else if (rate_out >= 41250) {
- sr = CC_SR_44100; rate_out = 44100;
- } else if (rate_out >= 35200) {
- sr = CC_SR_38400; rate_out = 38400;
- } else if (rate_out >= 27025) {
- sr = CC_SR_32000; rate_out = 32000;
- } else if (rate_out >= 20625) {
- sr = CC_SR_22050; rate_out = 22050;
- } else if (rate_out >= 17600) {
- sr = CC_SR_19200; rate_out = 19200;
- } else if (rate_out >= 13513) {
- sr = CC_SR_16000; rate_out = 16000;
- } else if (rate_out >= 10313) {
- sr = CC_SR_11025; rate_out = 11025;
- } else if (rate_out >= 8800) {
- sr = CC_SR_9600; rate_out = 9600;
- } else if (rate_out >= 6750) {
- sr = CC_SR_8000; rate_out = 8000;
- } else {
- sr = CC_SR_5500; rate_out = 5500;
- }
-
- *rate = rate_out;
- return sr;
-}
-
-static void set_adc_rate(struct it8172_state *s, unsigned rate)
-{
- unsigned long flags;
- unsigned short sr;
-
- sr = get_compat_rate(&rate);
-
- spin_lock_irqsave(&s->lock, flags);
- s->capcc &= ~CC_SR_MASK;
- s->capcc |= sr;
- outw(s->capcc, s->io+IT_AC_CAPCC);
- spin_unlock_irqrestore(&s->lock, flags);
-
- s->adcrate = rate;
-}
-
-
-static void set_dac_rate(struct it8172_state *s, unsigned rate)
-{
- unsigned long flags;
- unsigned short sr;
-
- sr = get_compat_rate(&rate);
-
- spin_lock_irqsave(&s->lock, flags);
- s->pcc &= ~CC_SR_MASK;
- s->pcc |= sr;
- outw(s->pcc, s->io+IT_AC_PCC);
- spin_unlock_irqrestore(&s->lock, flags);
-
- s->dacrate = rate;
-}
-
-
-/* --------------------------------------------------------------------- */
-
-static u16 rdcodec(struct ac97_codec *codec, u8 addr)
-{
- struct it8172_state *s = (struct it8172_state *)codec->private_data;
- unsigned long flags;
- unsigned short circp, data;
- int i;
-
- spin_lock_irqsave(&s->lock, flags);
-
- for (i = 0; i < POLL_COUNT; i++)
- if (!(inw(s->io+IT_AC_CIRCP) & CIRCP_CPS))
- break;
- if (i == POLL_COUNT)
- err("rdcodec: codec ready poll expired!");
-
- circp = addr & CIRCP_CIA_MASK;
- circp |= (codec->id << CIRCP_CID_BIT);
- circp |= CIRCP_RWC; // read command
- outw(circp, s->io+IT_AC_CIRCP);
-
- /* now wait for the data */
- for (i = 0; i < POLL_COUNT; i++)
- if (inw(s->io+IT_AC_CIRCP) & CIRCP_DPVF)
- break;
- if (i == POLL_COUNT)
- err("rdcodec: read poll expired!");
-
- data = inw(s->io+IT_AC_CIRDP);
- spin_unlock_irqrestore(&s->lock, flags);
-
- return data;
-}
-
-
-static void wrcodec(struct ac97_codec *codec, u8 addr, u16 data)
-{
- struct it8172_state *s = (struct it8172_state *)codec->private_data;
- unsigned long flags;
- unsigned short circp;
- int i;
-
- spin_lock_irqsave(&s->lock, flags);
-
- for (i = 0; i < POLL_COUNT; i++)
- if (!(inw(s->io+IT_AC_CIRCP) & CIRCP_CPS))
- break;
- if (i == POLL_COUNT)
- err("wrcodec: codec ready poll expired!");
-
- circp = addr & CIRCP_CIA_MASK;
- circp |= (codec->id << CIRCP_CID_BIT);
- circp &= ~CIRCP_RWC; // write command
-
- outw(data, s->io+IT_AC_CIRDP); // send data first
- outw(circp, s->io+IT_AC_CIRCP);
-
- spin_unlock_irqrestore(&s->lock, flags);
-}
-
-
-static void waitcodec(struct ac97_codec *codec)
-{
- unsigned short temp;
-
- /* codec_wait is used to wait for a ready state after
- an AC97_RESET. */
- it8172_delay(10);
-
- temp = rdcodec(codec, 0x26);
-
- // If power down, power up
- if (temp & 0x3f00) {
- // Power on
- wrcodec(codec, 0x26, 0);
- it8172_delay(100);
- // Reread
- temp = rdcodec(codec, 0x26);
- }
-
- // Check if Codec REF,ANL,DAC,ADC ready***/
- if ((temp & 0x3f0f) != 0x000f) {
- err("codec reg 26 status (0x%x) not ready!!", temp);
- return;
- }
-}
-
-
-/* --------------------------------------------------------------------- */
-
-static inline void stop_adc(struct it8172_state *s)
-{
- struct dmabuf* db = &s->dma_adc;
- unsigned long flags;
- unsigned char imc;
-
- if (db->stopped)
- return;
-
- spin_lock_irqsave(&s->lock, flags);
-
- s->capcc &= ~(CC_CA | CC_CP | CC_CB2L | CC_CB1L);
- s->capcc |= CC_CSP;
- outw(s->capcc, s->io+IT_AC_CAPCC);
-
- // disable capture interrupt
- imc = inb(s->io+IT_AC_IMC);
- outb(imc | IMC_CCIM, s->io+IT_AC_IMC);
-
- db->stopped = 1;
-
- spin_unlock_irqrestore(&s->lock, flags);
-}
-
-static inline void stop_dac(struct it8172_state *s)
-{
- struct dmabuf* db = &s->dma_dac;
- unsigned long flags;
- unsigned char imc;
-
- if (db->stopped)
- return;
-
- spin_lock_irqsave(&s->lock, flags);
-
- s->pcc &= ~(CC_CA | CC_CP | CC_CB2L | CC_CB1L);
- s->pcc |= CC_CSP;
- outw(s->pcc, s->io+IT_AC_PCC);
-
- // disable playback interrupt
- imc = inb(s->io+IT_AC_IMC);
- outb(imc | IMC_PCIM, s->io+IT_AC_IMC);
-
- db->stopped = 1;
-
- spin_unlock_irqrestore(&s->lock, flags);
-}
-
-static void start_dac(struct it8172_state *s)
-{
- struct dmabuf* db = &s->dma_dac;
- unsigned long flags;
- unsigned char imc;
- unsigned long buf1, buf2;
-
- if (!db->stopped)
- return;
-
- spin_lock_irqsave(&s->lock, flags);
-
- // reset Buffer 1 and 2 pointers to nextOut and nextOut+fragsize
- buf1 = virt_to_bus(db->nextOut);
- buf2 = buf1 + db->fragsize;
- if (buf2 >= db->dmaaddr + db->dmasize)
- buf2 -= db->dmasize;
-
- outl(buf1, s->io+IT_AC_PCB1STA);
- outl(buf2, s->io+IT_AC_PCB2STA);
- db->curBufPtr = IT_AC_PCB1STA;
-
- // enable playback interrupt
- imc = inb(s->io+IT_AC_IMC);
- outb(imc & ~IMC_PCIM, s->io+IT_AC_IMC);
-
- s->pcc &= ~(CC_CSP | CC_CP | CC_CB2L | CC_CB1L);
- s->pcc |= CC_CA;
- outw(s->pcc, s->io+IT_AC_PCC);
-
- db->stopped = 0;
-
- spin_unlock_irqrestore(&s->lock, flags);
-}
-
-static void start_adc(struct it8172_state *s)
-{
- struct dmabuf* db = &s->dma_adc;
- unsigned long flags;
- unsigned char imc;
- unsigned long buf1, buf2;
-
- if (!db->stopped)
- return;
-
- spin_lock_irqsave(&s->lock, flags);
-
- // reset Buffer 1 and 2 pointers to nextIn and nextIn+fragsize
- buf1 = virt_to_bus(db->nextIn);
- buf2 = buf1 + db->fragsize;
- if (buf2 >= db->dmaaddr + db->dmasize)
- buf2 -= db->dmasize;
-
- outl(buf1, s->io+IT_AC_CAPB1STA);
- outl(buf2, s->io+IT_AC_CAPB2STA);
- db->curBufPtr = IT_AC_CAPB1STA;
-
- // enable capture interrupt
- imc = inb(s->io+IT_AC_IMC);
- outb(imc & ~IMC_CCIM, s->io+IT_AC_IMC);
-
- s->capcc &= ~(CC_CSP | CC_CP | CC_CB2L | CC_CB1L);
- s->capcc |= CC_CA;
- outw(s->capcc, s->io+IT_AC_CAPCC);
-
- db->stopped = 0;
-
- spin_unlock_irqrestore(&s->lock, flags);
-}
-
-/* --------------------------------------------------------------------- */
-
-#define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
-#define DMABUF_MINORDER 1
-
-static inline void dealloc_dmabuf(struct it8172_state *s, struct dmabuf *db)
-{
- struct page *page, *pend;
-
- if (db->rawbuf) {
- /* undo marking the pages as reserved */
- pend = virt_to_page(db->rawbuf +
- (PAGE_SIZE << db->buforder) - 1);
- for (page = virt_to_page(db->rawbuf); page <= pend; page++)
- ClearPageReserved(page);
- pci_free_consistent(s->dev, PAGE_SIZE << db->buforder,
- db->rawbuf, db->dmaaddr);
- }
- db->rawbuf = db->nextIn = db->nextOut = NULL;
- db->mapped = db->ready = 0;
-}
-
-static int prog_dmabuf(struct it8172_state *s, struct dmabuf *db,
- unsigned rate, unsigned fmt, unsigned reg)
-{
- int order;
- unsigned bytepersec;
- unsigned bufs;
- struct page *page, *pend;
-
- if (!db->rawbuf) {
- db->ready = db->mapped = 0;
- for (order = DMABUF_DEFAULTORDER;
- order >= DMABUF_MINORDER; order--)
- if ((db->rawbuf =
- pci_alloc_consistent(s->dev,
- PAGE_SIZE << order,
- &db->dmaaddr)))
- break;
- if (!db->rawbuf)
- return -ENOMEM;
- db->buforder = order;
- /* now mark the pages as reserved;
- otherwise remap_pfn_range doesn't do what we want */
- pend = virt_to_page(db->rawbuf +
- (PAGE_SIZE << db->buforder) - 1);
- for (page = virt_to_page(db->rawbuf); page <= pend; page++)
- SetPageReserved(page);
- }
-
- db->count = 0;
- db->nextIn = db->nextOut = db->rawbuf;
-
- bytepersec = rate << sample_shift[fmt];
- bufs = PAGE_SIZE << db->buforder;
- if (db->ossfragshift) {
- if ((1000 << db->ossfragshift) < bytepersec)
- db->fragshift = ld2(bytepersec/1000);
- else
- db->fragshift = db->ossfragshift;
- } else {
- db->fragshift = ld2(bytepersec/100/(db->subdivision ?
- db->subdivision : 1));
- if (db->fragshift < 3)
- db->fragshift = 3;
- }
- db->numfrag = bufs >> db->fragshift;
- while (db->numfrag < 4 && db->fragshift > 3) {
- db->fragshift--;
- db->numfrag = bufs >> db->fragshift;
- }
- db->fragsize = 1 << db->fragshift;
- if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
- db->numfrag = db->ossmaxfrags;
- db->fragsamples = db->fragsize >> sample_shift[fmt];
- db->dmasize = db->numfrag << db->fragshift;
- memset(db->rawbuf, (fmt & (CC_DF>>CC_FMT_BIT)) ? 0 : 0x80, bufs);
-
-#ifdef IT8172_VERBOSE_DEBUG
- dbg("rate=%d, fragsize=%d, numfrag=%d, dmasize=%d",
- rate, db->fragsize, db->numfrag, db->dmasize);
-#endif
-
- // set data length register
- outw(db->fragsize, s->io+reg+2);
- db->ready = 1;
-
- return 0;
-}
-
-static inline int prog_dmabuf_adc(struct it8172_state *s)
-{
- stop_adc(s);
- return prog_dmabuf(s, &s->dma_adc, s->adcrate,
- (s->capcc & CC_FMT_MASK) >> CC_FMT_BIT,
- IT_AC_CAPCC);
-}
-
-static inline int prog_dmabuf_dac(struct it8172_state *s)
-{
- stop_dac(s);
- return prog_dmabuf(s, &s->dma_dac, s->dacrate,
- (s->pcc & CC_FMT_MASK) >> CC_FMT_BIT,
- IT_AC_PCC);
-}
-
-
-/* hold spinlock for the following! */
-
-static irqreturn_t it8172_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
- struct it8172_state *s = (struct it8172_state *)dev_id;
- struct dmabuf* dac = &s->dma_dac;
- struct dmabuf* adc = &s->dma_adc;
- unsigned char isc, vs;
- unsigned short vol, mute;
- unsigned long newptr;
-
- spin_lock(&s->lock);
-
- isc = inb(s->io+IT_AC_ISC);
-
- /* fastpath out, to ease interrupt sharing */
- if (!(isc & (ISC_VCI | ISC_CCI | ISC_PCI))) {
- spin_unlock(&s->lock);
- return IRQ_NONE;
- }
-
- /* clear audio interrupts first */
- outb(isc | ISC_VCI | ISC_CCI | ISC_PCI, s->io+IT_AC_ISC);
-
- /* handle volume button events (ignore if S/PDIF enabled) */
- if ((isc & ISC_VCI) && s->spdif_volume == -1) {
- vs = inb(s->io+IT_AC_VS);
- outb(0, s->io+IT_AC_VS);
- vol = inw(s->io+IT_AC_PCMOV);
- mute = vol & PCMOV_PCMOM;
- vol &= PCMOV_PCMLCG_MASK;
- if ((vs & VS_VUP) && vol > 0)
- vol--;
- if ((vs & VS_VDP) && vol < 0x1f)
- vol++;
- vol |= (vol << PCMOV_PCMRCG_BIT);
- if (vs & VS_VMP)
- vol |= (mute ^ PCMOV_PCMOM);
- outw(vol, s->io+IT_AC_PCMOV);
- }
-
- /* update capture pointers */
- if (isc & ISC_CCI) {
- if (adc->count > adc->dmasize - adc->fragsize) {
- // Overrun. Stop ADC and log the error
- stop_adc(s);
- adc->error++;
- dbg("adc overrun");
- } else {
- newptr = virt_to_bus(adc->nextIn) + 2*adc->fragsize;
- if (newptr >= adc->dmaaddr + adc->dmasize)
- newptr -= adc->dmasize;
-
- outl(newptr, s->io+adc->curBufPtr);
- adc->curBufPtr = (adc->curBufPtr == IT_AC_CAPB1STA) ?
- IT_AC_CAPB2STA : IT_AC_CAPB1STA;
-
- adc->nextIn += adc->fragsize;
- if (adc->nextIn >= adc->rawbuf + adc->dmasize)
- adc->nextIn -= adc->dmasize;
-
- adc->count += adc->fragsize;
- adc->total_bytes += adc->fragsize;
-
- /* wake up anybody listening */
- if (waitqueue_active(&adc->wait))
- wake_up_interruptible(&adc->wait);
- }
- }
-
- /* update playback pointers */
- if (isc & ISC_PCI) {
- newptr = virt_to_bus(dac->nextOut) + 2*dac->fragsize;
- if (newptr >= dac->dmaaddr + dac->dmasize)
- newptr -= dac->dmasize;
-
- outl(newptr, s->io+dac->curBufPtr);
- dac->curBufPtr = (dac->curBufPtr == IT_AC_PCB1STA) ?
- IT_AC_PCB2STA : IT_AC_PCB1STA;
-
- dac->nextOut += dac->fragsize;
- if (dac->nextOut >= dac->rawbuf + dac->dmasize)
- dac->nextOut -= dac->dmasize;
-
- dac->count -= dac->fragsize;
- dac->total_bytes += dac->fragsize;
-
- /* wake up anybody listening */
- if (waitqueue_active(&dac->wait))
- wake_up_interruptible(&dac->wait);
-
- if (dac->count <= 0)
- stop_dac(s);
- }
-
- spin_unlock(&s->lock);
- return IRQ_HANDLED;
-}
-
-/* --------------------------------------------------------------------- */
-
-static int it8172_open_mixdev(struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- struct list_head *list;
- struct it8172_state *s;
-
- for (list = devs.next; ; list = list->next) {
- if (list == &devs)
- return -ENODEV;
- s = list_entry(list, struct it8172_state, devs);
- if (s->codec.dev_mixer == minor)
- break;
- }
- file->private_data = s;
- return nonseekable_open(inode, file);
-}
-
-static int it8172_release_mixdev(struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-
-static u16
-cvt_ossvol(unsigned int gain)
-{
- u16 ret;
-
- if (gain == 0)
- return 0;
-
- if (gain > 100)
- gain = 100;
-
- ret = (100 - gain + 32) / 4;
- ret = ret > 31 ? 31 : ret;
- return ret;
-}
-
-
-static int mixdev_ioctl(struct ac97_codec *codec, unsigned int cmd,
- unsigned long arg)
-{
- struct it8172_state *s = (struct it8172_state *)codec->private_data;
- unsigned int left, right;
- unsigned long flags;
- int val;
- u16 vol;
-
- /*
- * When we are in S/PDIF mode, we want to disable any analog output so
- * we filter the master/PCM channel volume ioctls.
- *
- * Also filter I2S channel, which AC'97 knows nothing about.
- */
-
- switch (cmd) {
- case SOUND_MIXER_WRITE_VOLUME:
- // if not in S/PDIF mode, pass to AC'97
- if (s->spdif_volume == -1)
- break;
- return 0;
- case SOUND_MIXER_WRITE_PCM:
- // if not in S/PDIF mode, pass to AC'97
- if (s->spdif_volume == -1)
- break;
- if (get_user(val, (int *)arg))
- return -EFAULT;
- right = ((val >> 8) & 0xff);
- left = (val & 0xff);
- if (right > 100)
- right = 100;
- if (left > 100)
- left = 100;
- s->spdif_volume = (right << 8) | left;
- vol = cvt_ossvol(left);
- vol |= (cvt_ossvol(right) << PCMOV_PCMRCG_BIT);
- if (vol == 0)
- vol = PCMOV_PCMOM; // mute
- spin_lock_irqsave(&s->lock, flags);
- outw(vol, s->io+IT_AC_PCMOV);
- spin_unlock_irqrestore(&s->lock, flags);
- return put_user(s->spdif_volume, (int *)arg);
- case SOUND_MIXER_READ_PCM:
- // if not in S/PDIF mode, pass to AC'97
- if (s->spdif_volume == -1)
- break;
- return put_user(s->spdif_volume, (int *)arg);
- case SOUND_MIXER_WRITE_I2S:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- right = ((val >> 8) & 0xff);
- left = (val & 0xff);
- if (right > 100)
- right = 100;
- if (left > 100)
- left = 100;
- s->i2s_volume = (right << 8) | left;
- vol = cvt_ossvol(left);
- vol |= (cvt_ossvol(right) << I2SV_I2SRCG_BIT);
- if (vol == 0)
- vol = I2SV_I2SOM; // mute
- outw(vol, s->io+IT_AC_I2SV);
- return put_user(s->i2s_volume, (int *)arg);
- case SOUND_MIXER_READ_I2S:
- return put_user(s->i2s_volume, (int *)arg);
- case SOUND_MIXER_WRITE_RECSRC:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val & SOUND_MASK_I2S) {
- s->i2s_recording = 1;
- outb(DRSS_I2S, s->io+IT_AC_DRSS);
- return 0;
- } else {
- s->i2s_recording = 0;
- outb(DRSS_AC97_PRIM, s->io+IT_AC_DRSS);
- // now let AC'97 select record source
- break;
- }
- case SOUND_MIXER_READ_RECSRC:
- if (s->i2s_recording)
- return put_user(SOUND_MASK_I2S, (int *)arg);
- else
- // let AC'97 report recording source
- break;
- }
-
- return codec->mixer_ioctl(codec, cmd, arg);
-}
-
-static int it8172_ioctl_mixdev(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct it8172_state *s = (struct it8172_state *)file->private_data;
- struct ac97_codec *codec = &s->codec;
-
- return mixdev_ioctl(codec, cmd, arg);
-}
-
-static /*const*/ struct file_operations it8172_mixer_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .ioctl = it8172_ioctl_mixdev,
- .open = it8172_open_mixdev,
- .release = it8172_release_mixdev,
-};
-
-/* --------------------------------------------------------------------- */
-
-static int drain_dac(struct it8172_state *s, int nonblock)
-{
- unsigned long flags;
- int count, tmo;
-
- if (s->dma_dac.mapped || !s->dma_dac.ready || s->dma_dac.stopped)
- return 0;
-
- for (;;) {
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_dac.count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count <= 0)
- break;
- if (signal_pending(current))
- break;
- //if (nonblock)
- //return -EBUSY;
- tmo = 1000 * count / s->dacrate;
- tmo >>= sample_shift[(s->pcc & CC_FMT_MASK) >> CC_FMT_BIT];
- it8172_delay(tmo);
- }
- if (signal_pending(current))
- return -ERESTARTSYS;
- return 0;
-}
-
-/* --------------------------------------------------------------------- */
-
-
-/*
- * Copy audio data to/from user buffer from/to dma buffer, taking care
- * that we wrap when reading/writing the dma buffer. Returns actual byte
- * count written to or read from the dma buffer.
- */
-static int copy_dmabuf_user(struct dmabuf *db, char* userbuf,
- int count, int to_user)
-{
- char* bufptr = to_user ? db->nextOut : db->nextIn;
- char* bufend = db->rawbuf + db->dmasize;
-
- if (bufptr + count > bufend) {
- int partial = (int)(bufend - bufptr);
- if (to_user) {
- if (copy_to_user(userbuf, bufptr, partial))
- return -EFAULT;
- if (copy_to_user(userbuf + partial, db->rawbuf,
- count - partial))
- return -EFAULT;
- } else {
- if (copy_from_user(bufptr, userbuf, partial))
- return -EFAULT;
- if (copy_from_user(db->rawbuf,
- userbuf + partial,
- count - partial))
- return -EFAULT;
- }
- } else {
- if (to_user) {
- if (copy_to_user(userbuf, bufptr, count))
- return -EFAULT;
- } else {
- if (copy_from_user(bufptr, userbuf, count))
- return -EFAULT;
- }
- }
-
- return count;
-}
-
-
-static ssize_t it8172_read(struct file *file, char *buffer,
- size_t count, loff_t *ppos)
-{
- struct it8172_state *s = (struct it8172_state *)file->private_data;
- struct dmabuf *db = &s->dma_adc;
- ssize_t ret;
- unsigned long flags;
- int cnt, remainder, avail;
-
- if (db->mapped)
- return -ENXIO;
- if (!access_ok(VERIFY_WRITE, buffer, count))
- return -EFAULT;
- ret = 0;
-
- while (count > 0) {
- // wait for samples in capture buffer
- do {
- spin_lock_irqsave(&s->lock, flags);
- if (db->stopped)
- start_adc(s);
- avail = db->count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (avail <= 0) {
- if (file->f_flags & O_NONBLOCK) {
- if (!ret)
- ret = -EAGAIN;
- return ret;
- }
- interruptible_sleep_on(&db->wait);
- if (signal_pending(current)) {
- if (!ret)
- ret = -ERESTARTSYS;
- return ret;
- }
- }
- } while (avail <= 0);
-
- // copy from nextOut to user
- if ((cnt = copy_dmabuf_user(db, buffer, count > avail ?
- avail : count, 1)) < 0) {
- if (!ret)
- ret = -EFAULT;
- return ret;
- }
-
- spin_lock_irqsave(&s->lock, flags);
- db->count -= cnt;
- spin_unlock_irqrestore(&s->lock, flags);
-
- db->nextOut += cnt;
- if (db->nextOut >= db->rawbuf + db->dmasize)
- db->nextOut -= db->dmasize;
-
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- } // while (count > 0)
-
- /*
- * See if the dma buffer count after this read call is
- * aligned on a fragsize boundary. If not, read from
- * buffer until we reach a boundary, and let's hope this
- * is just the last remainder of an audio record. If not
- * it means the user is not reading in fragsize chunks, in
- * which case it's his/her fault that there are audio gaps
- * in their record.
- */
- spin_lock_irqsave(&s->lock, flags);
- remainder = db->count % db->fragsize;
- if (remainder) {
- db->nextOut += remainder;
- if (db->nextOut >= db->rawbuf + db->dmasize)
- db->nextOut -= db->dmasize;
- db->count -= remainder;
- }
- spin_unlock_irqrestore(&s->lock, flags);
-
- return ret;
-}
-
-static ssize_t it8172_write(struct file *file, const char *buffer,
- size_t count, loff_t *ppos)
-{
- struct it8172_state *s = (struct it8172_state *)file->private_data;
- struct dmabuf *db = &s->dma_dac;
- ssize_t ret;
- unsigned long flags;
- int cnt, remainder, avail;
-
- if (db->mapped)
- return -ENXIO;
- if (!access_ok(VERIFY_READ, buffer, count))
- return -EFAULT;
- ret = 0;
-
- while (count > 0) {
- // wait for space in playback buffer
- do {
- spin_lock_irqsave(&s->lock, flags);
- avail = db->dmasize - db->count;
- spin_unlock_irqrestore(&s->lock, flags);
- if (avail <= 0) {
- if (file->f_flags & O_NONBLOCK) {
- if (!ret)
- ret = -EAGAIN;
- return ret;
- }
- interruptible_sleep_on(&db->wait);
- if (signal_pending(current)) {
- if (!ret)
- ret = -ERESTARTSYS;
- return ret;
- }
- }
- } while (avail <= 0);
-
- // copy to nextIn
- if ((cnt = copy_dmabuf_user(db, (char*)buffer,
- count > avail ?
- avail : count, 0)) < 0) {
- if (!ret)
- ret = -EFAULT;
- return ret;
- }
-
- spin_lock_irqsave(&s->lock, flags);
- db->count += cnt;
- if (db->stopped)
- start_dac(s);
- spin_unlock_irqrestore(&s->lock, flags);
-
- db->nextIn += cnt;
- if (db->nextIn >= db->rawbuf + db->dmasize)
- db->nextIn -= db->dmasize;
-
- count -= cnt;
- buffer += cnt;
- ret += cnt;
- } // while (count > 0)
-
- /*
- * See if the dma buffer count after this write call is
- * aligned on a fragsize boundary. If not, fill buffer
- * with silence to the next boundary, and let's hope this
- * is just the last remainder of an audio playback. If not
- * it means the user is not sending us fragsize chunks, in
- * which case it's his/her fault that there are audio gaps
- * in their playback.
- */
- spin_lock_irqsave(&s->lock, flags);
- remainder = db->count % db->fragsize;
- if (remainder) {
- int fill_cnt = db->fragsize - remainder;
- memset(db->nextIn, 0, fill_cnt);
- db->nextIn += fill_cnt;
- if (db->nextIn >= db->rawbuf + db->dmasize)
- db->nextIn -= db->dmasize;
- db->count += fill_cnt;
- }
- spin_unlock_irqrestore(&s->lock, flags);
-
- return ret;
-}
-
-/* No kernel lock - we have our own spinlock */
-static unsigned int it8172_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct it8172_state *s = (struct it8172_state *)file->private_data;
- unsigned long flags;
- unsigned int mask = 0;
-
- if (file->f_mode & FMODE_WRITE) {
- if (!s->dma_dac.ready)
- return 0;
- poll_wait(file, &s->dma_dac.wait, wait);
- }
- if (file->f_mode & FMODE_READ) {
- if (!s->dma_adc.ready)
- return 0;
- poll_wait(file, &s->dma_adc.wait, wait);
- }
-
- spin_lock_irqsave(&s->lock, flags);
- if (file->f_mode & FMODE_READ) {
- if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
- mask |= POLLIN | POLLRDNORM;
- }
- if (file->f_mode & FMODE_WRITE) {
- if (s->dma_dac.mapped) {
- if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- } else {
- if ((signed)s->dma_dac.dmasize >=
- s->dma_dac.count + (signed)s->dma_dac.fragsize)
- mask |= POLLOUT | POLLWRNORM;
- }
- }
- spin_unlock_irqrestore(&s->lock, flags);
- return mask;
-}
-
-static int it8172_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct it8172_state *s = (struct it8172_state *)file->private_data;
- struct dmabuf *db;
- unsigned long size;
-
- lock_kernel();
- if (vma->vm_flags & VM_WRITE)
- db = &s->dma_dac;
- else if (vma->vm_flags & VM_READ)
- db = &s->dma_adc;
- else {
- unlock_kernel();
- return -EINVAL;
- }
- if (vma->vm_pgoff != 0) {
- unlock_kernel();
- return -EINVAL;
- }
- size = vma->vm_end - vma->vm_start;
- if (size > (PAGE_SIZE << db->buforder)) {
- unlock_kernel();
- return -EINVAL;
- }
- if (remap_pfn_range(vma, vma->vm_start,
- virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
- size, vma->vm_page_prot)) {
- unlock_kernel();
- return -EAGAIN;
- }
- db->mapped = 1;
- unlock_kernel();
- return 0;
-}
-
-
-#ifdef IT8172_VERBOSE_DEBUG
-static struct ioctl_str_t {
- unsigned int cmd;
- const char* str;
-} ioctl_str[] = {
- {SNDCTL_DSP_RESET, "SNDCTL_DSP_RESET"},
- {SNDCTL_DSP_SYNC, "SNDCTL_DSP_SYNC"},
- {SNDCTL_DSP_SPEED, "SNDCTL_DSP_SPEED"},
- {SNDCTL_DSP_STEREO, "SNDCTL_DSP_STEREO"},
- {SNDCTL_DSP_GETBLKSIZE, "SNDCTL_DSP_GETBLKSIZE"},
- {SNDCTL_DSP_SAMPLESIZE, "SNDCTL_DSP_SAMPLESIZE"},
- {SNDCTL_DSP_CHANNELS, "SNDCTL_DSP_CHANNELS"},
- {SOUND_PCM_WRITE_CHANNELS, "SOUND_PCM_WRITE_CHANNELS"},
- {SOUND_PCM_WRITE_FILTER, "SOUND_PCM_WRITE_FILTER"},
- {SNDCTL_DSP_POST, "SNDCTL_DSP_POST"},
- {SNDCTL_DSP_SUBDIVIDE, "SNDCTL_DSP_SUBDIVIDE"},
- {SNDCTL_DSP_SETFRAGMENT, "SNDCTL_DSP_SETFRAGMENT"},
- {SNDCTL_DSP_GETFMTS, "SNDCTL_DSP_GETFMTS"},
- {SNDCTL_DSP_SETFMT, "SNDCTL_DSP_SETFMT"},
- {SNDCTL_DSP_GETOSPACE, "SNDCTL_DSP_GETOSPACE"},
- {SNDCTL_DSP_GETISPACE, "SNDCTL_DSP_GETISPACE"},
- {SNDCTL_DSP_NONBLOCK, "SNDCTL_DSP_NONBLOCK"},
- {SNDCTL_DSP_GETCAPS, "SNDCTL_DSP_GETCAPS"},
- {SNDCTL_DSP_GETTRIGGER, "SNDCTL_DSP_GETTRIGGER"},
- {SNDCTL_DSP_SETTRIGGER, "SNDCTL_DSP_SETTRIGGER"},
- {SNDCTL_DSP_GETIPTR, "SNDCTL_DSP_GETIPTR"},
- {SNDCTL_DSP_GETOPTR, "SNDCTL_DSP_GETOPTR"},
- {SNDCTL_DSP_MAPINBUF, "SNDCTL_DSP_MAPINBUF"},
- {SNDCTL_DSP_MAPOUTBUF, "SNDCTL_DSP_MAPOUTBUF"},
- {SNDCTL_DSP_SETSYNCRO, "SNDCTL_DSP_SETSYNCRO"},
- {SNDCTL_DSP_SETDUPLEX, "SNDCTL_DSP_SETDUPLEX"},
- {SNDCTL_DSP_GETODELAY, "SNDCTL_DSP_GETODELAY"},
- {SNDCTL_DSP_GETCHANNELMASK, "SNDCTL_DSP_GETCHANNELMASK"},
- {SNDCTL_DSP_BIND_CHANNEL, "SNDCTL_DSP_BIND_CHANNEL"},
- {OSS_GETVERSION, "OSS_GETVERSION"},
- {SOUND_PCM_READ_RATE, "SOUND_PCM_READ_RATE"},
- {SOUND_PCM_READ_CHANNELS, "SOUND_PCM_READ_CHANNELS"},
- {SOUND_PCM_READ_BITS, "SOUND_PCM_READ_BITS"},
- {SOUND_PCM_READ_FILTER, "SOUND_PCM_READ_FILTER"}
-};
-#endif
-
-static int it8172_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct it8172_state *s = (struct it8172_state *)file->private_data;
- unsigned long flags;
- audio_buf_info abinfo;
- count_info cinfo;
- int count;
- int val, mapped, ret, diff;
-
- mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
- ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
-
-#ifdef IT8172_VERBOSE_DEBUG
- for (count=0; count<sizeof(ioctl_str)/sizeof(ioctl_str[0]); count++) {
- if (ioctl_str[count].cmd == cmd)
- break;
- }
- if (count < sizeof(ioctl_str)/sizeof(ioctl_str[0]))
- dbg("ioctl %s, arg=0x%08x",
- ioctl_str[count].str, (unsigned int)arg);
- else
- dbg("ioctl unknown, 0x%x", cmd);
-#endif
-
- switch (cmd) {
- case OSS_GETVERSION:
- return put_user(SOUND_VERSION, (int *)arg);
-
- case SNDCTL_DSP_SYNC:
- if (file->f_mode & FMODE_WRITE)
- return drain_dac(s, file->f_flags & O_NONBLOCK);
- return 0;
-
- case SNDCTL_DSP_SETDUPLEX:
- return 0;
-
- case SNDCTL_DSP_GETCAPS:
- return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME |
- DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
-
- case SNDCTL_DSP_RESET:
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- synchronize_irq(s->irq);
- s->dma_dac.count = s->dma_dac.total_bytes = 0;
- s->dma_dac.nextIn = s->dma_dac.nextOut =
- s->dma_dac.rawbuf;
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- synchronize_irq(s->irq);
- s->dma_adc.count = s->dma_adc.total_bytes = 0;
- s->dma_adc.nextIn = s->dma_adc.nextOut =
- s->dma_adc.rawbuf;
- }
- return 0;
-
- case SNDCTL_DSP_SPEED:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val >= 0) {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- set_adc_rate(s, val);
- if ((ret = prog_dmabuf_adc(s)))
- return ret;
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- set_dac_rate(s, val);
- if ((ret = prog_dmabuf_dac(s)))
- return ret;
- }
- }
- return put_user((file->f_mode & FMODE_READ) ?
- s->adcrate : s->dacrate, (int *)arg);
-
- case SNDCTL_DSP_STEREO:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- if (val)
- s->capcc |= CC_SM;
- else
- s->capcc &= ~CC_SM;
- outw(s->capcc, s->io+IT_AC_CAPCC);
- if ((ret = prog_dmabuf_adc(s)))
- return ret;
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- if (val)
- s->pcc |= CC_SM;
- else
- s->pcc &= ~CC_SM;
- outw(s->pcc, s->io+IT_AC_PCC);
- if ((ret = prog_dmabuf_dac(s)))
- return ret;
- }
- return 0;
-
- case SNDCTL_DSP_CHANNELS:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val != 0) {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- if (val >= 2) {
- val = 2;
- s->capcc |= CC_SM;
- }
- else
- s->capcc &= ~CC_SM;
- outw(s->capcc, s->io+IT_AC_CAPCC);
- if ((ret = prog_dmabuf_adc(s)))
- return ret;
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- switch (val) {
- case 1:
- s->pcc &= ~CC_SM;
- break;
- case 2:
- s->pcc |= CC_SM;
- break;
- default:
- // FIX! support multichannel???
- val = 2;
- s->pcc |= CC_SM;
- break;
- }
- outw(s->pcc, s->io+IT_AC_PCC);
- if ((ret = prog_dmabuf_dac(s)))
- return ret;
- }
- }
- return put_user(val, (int *)arg);
-
- case SNDCTL_DSP_GETFMTS: /* Returns a mask */
- return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
-
- case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val != AFMT_QUERY) {
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- if (val == AFMT_S16_LE)
- s->capcc |= CC_DF;
- else {
- val = AFMT_U8;
- s->capcc &= ~CC_DF;
- }
- outw(s->capcc, s->io+IT_AC_CAPCC);
- if ((ret = prog_dmabuf_adc(s)))
- return ret;
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- if (val == AFMT_S16_LE)
- s->pcc |= CC_DF;
- else {
- val = AFMT_U8;
- s->pcc &= ~CC_DF;
- }
- outw(s->pcc, s->io+IT_AC_PCC);
- if ((ret = prog_dmabuf_dac(s)))
- return ret;
- }
- } else {
- if (file->f_mode & FMODE_READ)
- val = (s->capcc & CC_DF) ?
- AFMT_S16_LE : AFMT_U8;
- else
- val = (s->pcc & CC_DF) ?
- AFMT_S16_LE : AFMT_U8;
- }
- return put_user(val, (int *)arg);
-
- case SNDCTL_DSP_POST:
- return 0;
-
- case SNDCTL_DSP_GETTRIGGER:
- val = 0;
- spin_lock_irqsave(&s->lock, flags);
- if (file->f_mode & FMODE_READ && !s->dma_adc.stopped)
- val |= PCM_ENABLE_INPUT;
- if (file->f_mode & FMODE_WRITE && !s->dma_dac.stopped)
- val |= PCM_ENABLE_OUTPUT;
- spin_unlock_irqrestore(&s->lock, flags);
- return put_user(val, (int *)arg);
-
- case SNDCTL_DSP_SETTRIGGER:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (file->f_mode & FMODE_READ) {
- if (val & PCM_ENABLE_INPUT)
- start_adc(s);
- else
- stop_adc(s);
- }
- if (file->f_mode & FMODE_WRITE) {
- if (val & PCM_ENABLE_OUTPUT)
- start_dac(s);
- else
- stop_dac(s);
- }
- return 0;
-
- case SNDCTL_DSP_GETOSPACE:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- abinfo.fragsize = s->dma_dac.fragsize;
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_dac.count;
- if (!s->dma_dac.stopped)
- count -= (s->dma_dac.fragsize -
- inw(s->io+IT_AC_PCDL));
- spin_unlock_irqrestore(&s->lock, flags);
- if (count < 0)
- count = 0;
- abinfo.bytes = s->dma_dac.dmasize - count;
- abinfo.fragstotal = s->dma_dac.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
- return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ?
- -EFAULT : 0;
-
- case SNDCTL_DSP_GETISPACE:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- abinfo.fragsize = s->dma_adc.fragsize;
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_adc.count;
- if (!s->dma_adc.stopped)
- count += (s->dma_adc.fragsize -
- inw(s->io+IT_AC_CAPCDL));
- spin_unlock_irqrestore(&s->lock, flags);
- if (count < 0)
- count = 0;
- abinfo.bytes = count;
- abinfo.fragstotal = s->dma_adc.numfrag;
- abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
- return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ?
- -EFAULT : 0;
-
- case SNDCTL_DSP_NONBLOCK:
- file->f_flags |= O_NONBLOCK;
- return 0;
-
- case SNDCTL_DSP_GETODELAY:
- if (!(file->f_mode & FMODE_WRITE))
- return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
- count = s->dma_dac.count;
- if (!s->dma_dac.stopped)
- count -= (s->dma_dac.fragsize -
- inw(s->io+IT_AC_PCDL));
- spin_unlock_irqrestore(&s->lock, flags);
- if (count < 0)
- count = 0;
- return put_user(count, (int *)arg);
-
- case SNDCTL_DSP_GETIPTR:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
- cinfo.bytes = s->dma_adc.total_bytes;
- count = s->dma_adc.count;
- if (!s->dma_adc.stopped) {
- diff = s->dma_adc.fragsize - inw(s->io+IT_AC_CAPCDL);
- count += diff;
- cinfo.bytes += diff;
- cinfo.ptr = inl(s->io+s->dma_adc.curBufPtr) -
- s->dma_adc.dmaaddr;
- } else
- cinfo.ptr = virt_to_bus(s->dma_adc.nextIn) -
- s->dma_adc.dmaaddr;
- if (s->dma_adc.mapped)
- s->dma_adc.count &= s->dma_adc.fragsize-1;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count < 0)
- count = 0;
- cinfo.blocks = count >> s->dma_adc.fragshift;
- if (copy_to_user((void *)arg, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETOPTR:
- if (!(file->f_mode & FMODE_READ))
- return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
- cinfo.bytes = s->dma_dac.total_bytes;
- count = s->dma_dac.count;
- if (!s->dma_dac.stopped) {
- diff = s->dma_dac.fragsize - inw(s->io+IT_AC_CAPCDL);
- count -= diff;
- cinfo.bytes += diff;
- cinfo.ptr = inl(s->io+s->dma_dac.curBufPtr) -
- s->dma_dac.dmaaddr;
- } else
- cinfo.ptr = virt_to_bus(s->dma_dac.nextOut) -
- s->dma_dac.dmaaddr;
- if (s->dma_dac.mapped)
- s->dma_dac.count &= s->dma_dac.fragsize-1;
- spin_unlock_irqrestore(&s->lock, flags);
- if (count < 0)
- count = 0;
- cinfo.blocks = count >> s->dma_dac.fragshift;
- if (copy_to_user((void *)arg, &cinfo, sizeof(cinfo)))
- return -EFAULT;
- return 0;
-
- case SNDCTL_DSP_GETBLKSIZE:
- if (file->f_mode & FMODE_WRITE)
- return put_user(s->dma_dac.fragsize, (int *)arg);
- else
- return put_user(s->dma_adc.fragsize, (int *)arg);
-
- case SNDCTL_DSP_SETFRAGMENT:
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.ossfragshift = val & 0xffff;
- s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_adc.ossfragshift < 4)
- s->dma_adc.ossfragshift = 4;
- if (s->dma_adc.ossfragshift > 15)
- s->dma_adc.ossfragshift = 15;
- if (s->dma_adc.ossmaxfrags < 4)
- s->dma_adc.ossmaxfrags = 4;
- if ((ret = prog_dmabuf_adc(s)))
- return ret;
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.ossfragshift = val & 0xffff;
- s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
- if (s->dma_dac.ossfragshift < 4)
- s->dma_dac.ossfragshift = 4;
- if (s->dma_dac.ossfragshift > 15)
- s->dma_dac.ossfragshift = 15;
- if (s->dma_dac.ossmaxfrags < 4)
- s->dma_dac.ossmaxfrags = 4;
- if ((ret = prog_dmabuf_dac(s)))
- return ret;
- }
- return 0;
-
- case SNDCTL_DSP_SUBDIVIDE:
- if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
- (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
- return -EINVAL;
- if (get_user(val, (int *)arg))
- return -EFAULT;
- if (val != 1 && val != 2 && val != 4)
- return -EINVAL;
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- s->dma_adc.subdivision = val;
- if ((ret = prog_dmabuf_adc(s)))
- return ret;
- }
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- s->dma_dac.subdivision = val;
- if ((ret = prog_dmabuf_dac(s)))
- return ret;
- }
- return 0;
-
- case SOUND_PCM_READ_RATE:
- return put_user((file->f_mode & FMODE_READ) ?
- s->adcrate : s->dacrate, (int *)arg);
-
- case SOUND_PCM_READ_CHANNELS:
- if (file->f_mode & FMODE_READ)
- return put_user((s->capcc & CC_SM) ? 2 : 1,
- (int *)arg);
- else
- return put_user((s->pcc & CC_SM) ? 2 : 1,
- (int *)arg);
-
- case SOUND_PCM_READ_BITS:
- if (file->f_mode & FMODE_READ)
- return put_user((s->capcc & CC_DF) ? 16 : 8,
- (int *)arg);
- else
- return put_user((s->pcc & CC_DF) ? 16 : 8,
- (int *)arg);
-
- case SOUND_PCM_WRITE_FILTER:
- case SNDCTL_DSP_SETSYNCRO:
- case SOUND_PCM_READ_FILTER:
- return -EINVAL;
- }
-
- return mixdev_ioctl(&s->codec, cmd, arg);
-}
-
-
-static int it8172_open(struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- DECLARE_WAITQUEUE(wait, current);
- unsigned long flags;
- struct list_head *list;
- struct it8172_state *s;
- int ret;
-
-#ifdef IT8172_VERBOSE_DEBUG
- if (file->f_flags & O_NONBLOCK)
- dbg("%s: non-blocking", __FUNCTION__);
- else
- dbg("%s: blocking", __FUNCTION__);
-#endif
-
- for (list = devs.next; ; list = list->next) {
- if (list == &devs)
- return -ENODEV;
- s = list_entry(list, struct it8172_state, devs);
- if (!((s->dev_audio ^ minor) & ~0xf))
- break;
- }
- file->private_data = s;
- /* wait for device to become free */
- mutex_lock(&s->open_mutex);
- while (s->open_mode & file->f_mode) {
- if (file->f_flags & O_NONBLOCK) {
- mutex_unlock(&s->open_mutex);
- return -EBUSY;
- }
- add_wait_queue(&s->open_wait, &wait);
- __set_current_state(TASK_INTERRUPTIBLE);
- mutex_unlock(&s->open_mutex);
- schedule();
- remove_wait_queue(&s->open_wait, &wait);
- set_current_state(TASK_RUNNING);
- if (signal_pending(current))
- return -ERESTARTSYS;
- mutex_lock(&s->open_mutex);
- }
-
- spin_lock_irqsave(&s->lock, flags);
-
- if (file->f_mode & FMODE_READ) {
- s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags =
- s->dma_adc.subdivision = s->dma_adc.total_bytes = 0;
- s->capcc &= ~(CC_SM | CC_DF);
- set_adc_rate(s, 8000);
- if ((minor & 0xf) == SND_DEV_DSP16)
- s->capcc |= CC_DF;
- outw(s->capcc, s->io+IT_AC_CAPCC);
- if ((ret = prog_dmabuf_adc(s))) {
- spin_unlock_irqrestore(&s->lock, flags);
- return ret;
- }
- }
- if (file->f_mode & FMODE_WRITE) {
- s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags =
- s->dma_dac.subdivision = s->dma_dac.total_bytes = 0;
- s->pcc &= ~(CC_SM | CC_DF);
- set_dac_rate(s, 8000);
- if ((minor & 0xf) == SND_DEV_DSP16)
- s->pcc |= CC_DF;
- outw(s->pcc, s->io+IT_AC_PCC);
- if ((ret = prog_dmabuf_dac(s))) {
- spin_unlock_irqrestore(&s->lock, flags);
- return ret;
- }
- }
-
- spin_unlock_irqrestore(&s->lock, flags);
-
- s->open_mode |= (file->f_mode & (FMODE_READ | FMODE_WRITE));
- mutex_unlock(&s->open_mutex);
- return nonseekable_open(inode, file);
-}
-
-static int it8172_release(struct inode *inode, struct file *file)
-{
- struct it8172_state *s = (struct it8172_state *)file->private_data;
-
-#ifdef IT8172_VERBOSE_DEBUG
- dbg("%s", __FUNCTION__);
-#endif
- lock_kernel();
- if (file->f_mode & FMODE_WRITE)
- drain_dac(s, file->f_flags & O_NONBLOCK);
- mutex_lock(&s->open_mutex);
- if (file->f_mode & FMODE_WRITE) {
- stop_dac(s);
- dealloc_dmabuf(s, &s->dma_dac);
- }
- if (file->f_mode & FMODE_READ) {
- stop_adc(s);
- dealloc_dmabuf(s, &s->dma_adc);
- }
- s->open_mode &= ((~file->f_mode) & (FMODE_READ|FMODE_WRITE));
- mutex_unlock(&s->open_mutex);
- wake_up(&s->open_wait);
- unlock_kernel();
- return 0;
-}
-
-static /*const*/ struct file_operations it8172_audio_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = it8172_read,
- .write = it8172_write,
- .poll = it8172_poll,
- .ioctl = it8172_ioctl,
- .mmap = it8172_mmap,
- .open = it8172_open,
- .release = it8172_release,
-};
-
-
-/* --------------------------------------------------------------------- */
-
-
-/* --------------------------------------------------------------------- */
-
-/*
- * for debugging purposes, we'll create a proc device that dumps the
- * CODEC chipstate
- */
-
-#ifdef IT8172_DEBUG
-static int proc_it8172_dump (char *buf, char **start, off_t fpos,
- int length, int *eof, void *data)
-{
- struct it8172_state *s;
- int cnt, len = 0;
-
- if (list_empty(&devs))
- return 0;
- s = list_entry(devs.next, struct it8172_state, devs);
-
- /* print out header */
- len += sprintf(buf + len, "\n\t\tIT8172 Audio Debug\n\n");
-
- // print out digital controller state
- len += sprintf (buf + len, "IT8172 Audio Controller registers\n");
- len += sprintf (buf + len, "---------------------------------\n");
- cnt=0;
- while (cnt < 0x72) {
- if (cnt == IT_AC_PCB1STA || cnt == IT_AC_PCB2STA ||
- cnt == IT_AC_CAPB1STA || cnt == IT_AC_CAPB2STA ||
- cnt == IT_AC_PFDP) {
- len+= sprintf (buf + len, "reg %02x = %08x\n",
- cnt, inl(s->io+cnt));
- cnt += 4;
- } else {
- len+= sprintf (buf + len, "reg %02x = %04x\n",
- cnt, inw(s->io+cnt));
- cnt += 2;
- }
- }
-
- /* print out CODEC state */
- len += sprintf (buf + len, "\nAC97 CODEC registers\n");
- len += sprintf (buf + len, "----------------------\n");
- for (cnt=0; cnt <= 0x7e; cnt = cnt +2)
- len+= sprintf (buf + len, "reg %02x = %04x\n",
- cnt, rdcodec(&s->codec, cnt));
-
- if (fpos >=len){
- *start = buf;
- *eof =1;
- return 0;
- }
- *start = buf + fpos;
- if ((len -= fpos) > length)
- return length;
- *eof =1;
- return len;
-
-}
-#endif /* IT8172_DEBUG */
-
-/* --------------------------------------------------------------------- */
-
-/* maximum number of devices; only used for command line params */
-#define NR_DEVICE 5
-
-static int spdif[NR_DEVICE];
-static int i2s_fmt[NR_DEVICE];
-
-static unsigned int devindex;
-
-module_param_array(spdif, int, NULL, 0);
-MODULE_PARM_DESC(spdif, "if 1 the S/PDIF digital output is enabled");
-module_param_array(i2s_fmt, int, NULL, 0);
-MODULE_PARM_DESC(i2s_fmt, "the format of I2S");
-
-MODULE_AUTHOR("Monta Vista Software, stevel@mvista.com");
-MODULE_DESCRIPTION("IT8172 Audio Driver");
-
-/* --------------------------------------------------------------------- */
-
-static int __devinit it8172_probe(struct pci_dev *pcidev,
- const struct pci_device_id *pciid)
-{
- struct it8172_state *s;
- int i, val;
- unsigned short pcisr, vol;
- unsigned char legacy, imc;
- char proc_str[80];
-
- if (pcidev->irq == 0)
- return -1;
-
- if (!(s = kmalloc(sizeof(struct it8172_state), GFP_KERNEL))) {
- err("alloc of device struct failed");
- return -1;
- }
-
- memset(s, 0, sizeof(struct it8172_state));
- init_waitqueue_head(&s->dma_adc.wait);
- init_waitqueue_head(&s->dma_dac.wait);
- init_waitqueue_head(&s->open_wait);
- mutex_init(&s->open_mutex);
- spin_lock_init(&s->lock);
- s->dev = pcidev;
- s->io = pci_resource_start(pcidev, 0);
- s->irq = pcidev->irq;
- s->vendor = pcidev->vendor;
- s->device = pcidev->device;
- pci_read_config_byte(pcidev, PCI_REVISION_ID, &s->rev);
- s->codec.private_data = s;
- s->codec.id = 0;
- s->codec.codec_read = rdcodec;
- s->codec.codec_write = wrcodec;
- s->codec.codec_wait = waitcodec;
-
- if (!request_region(s->io, pci_resource_len(pcidev,0),
- IT8172_MODULE_NAME)) {
- err("io ports %#lx->%#lx in use",
- s->io, s->io + pci_resource_len(pcidev,0)-1);
- goto err_region;
- }
- if (request_irq(s->irq, it8172_interrupt, IRQF_DISABLED,
- IT8172_MODULE_NAME, s)) {
- err("irq %u in use", s->irq);
- goto err_irq;
- }
-
- info("IO at %#lx, IRQ %d", s->io, s->irq);
-
- /* register devices */
- if ((s->dev_audio = register_sound_dsp(&it8172_audio_fops, -1)) < 0)
- goto err_dev1;
- if ((s->codec.dev_mixer =
- register_sound_mixer(&it8172_mixer_fops, -1)) < 0)
- goto err_dev2;
-
-#ifdef IT8172_DEBUG
- /* initialize the debug proc device */
- s->ps = create_proc_read_entry(IT8172_MODULE_NAME, 0, NULL,
- proc_it8172_dump, NULL);
-#endif /* IT8172_DEBUG */
-
- /*
- * Reset the Audio device using the IT8172 PCI Reset register. This
- * creates an audible double click on a speaker connected to Line-out.
- */
- IT_IO_READ16(IT_PM_PCISR, pcisr);
- pcisr |= IT_PM_PCISR_ACSR;
- IT_IO_WRITE16(IT_PM_PCISR, pcisr);
- /* wait up to 100msec for reset to complete */
- for (i=0; pcisr & IT_PM_PCISR_ACSR; i++) {
- it8172_delay(10);
- if (i == 10)
- break;
- IT_IO_READ16(IT_PM_PCISR, pcisr);
- }
- if (i == 10) {
- err("chip reset timeout!");
- goto err_dev3;
- }
-
- /* enable pci io and bus mastering */
- if (pci_enable_device(pcidev))
- goto err_dev3;
- pci_set_master(pcidev);
-
- /* get out of legacy mode */
- pci_read_config_byte (pcidev, 0x40, &legacy);
- pci_write_config_byte (pcidev, 0x40, legacy & ~1);
-
- s->spdif_volume = -1;
- /* check to see if s/pdif mode is being requested */
- if (spdif[devindex]) {
- info("enabling S/PDIF output");
- s->spdif_volume = 0;
- outb(GC_SOE, s->io+IT_AC_GC);
- } else {
- info("disabling S/PDIF output");
- outb(0, s->io+IT_AC_GC);
- }
-
- /* check to see if I2S format requested */
- if (i2s_fmt[devindex]) {
- info("setting I2S format to 0x%02x", i2s_fmt[devindex]);
- outb(i2s_fmt[devindex], s->io+IT_AC_I2SMC);
- } else {
- outb(I2SMC_I2SF_I2S, s->io+IT_AC_I2SMC);
- }
-
- /* cold reset the AC97 */
- outw(CODECC_CR, s->io+IT_AC_CODECC);
- udelay(1000);
- outw(0, s->io+IT_AC_CODECC);
- /* need to delay around 500msec(bleech) to give
- some CODECs enough time to wakeup */
- it8172_delay(500);
-
- /* AC97 warm reset to start the bitclk */
- outw(CODECC_WR, s->io+IT_AC_CODECC);
- udelay(1000);
- outw(0, s->io+IT_AC_CODECC);
-
- /* codec init */
- if (!ac97_probe_codec(&s->codec))
- goto err_dev3;
-
- /* add I2S as allowable recording source */
- s->codec.record_sources |= SOUND_MASK_I2S;
-
- /* Enable Volume button interrupts */
- imc = inb(s->io+IT_AC_IMC);
- outb(imc & ~IMC_VCIM, s->io+IT_AC_IMC);
-
- /* Un-mute PCM and FM out on the controller */
- vol = inw(s->io+IT_AC_PCMOV);
- outw(vol & ~PCMOV_PCMOM, s->io+IT_AC_PCMOV);
- vol = inw(s->io+IT_AC_FMOV);
- outw(vol & ~FMOV_FMOM, s->io+IT_AC_FMOV);
-
- /* set channel defaults to 8-bit, mono, 8 Khz */
- s->pcc = 0;
- s->capcc = 0;
- set_dac_rate(s, 8000);
- set_adc_rate(s, 8000);
-
- /* set mic to be the recording source */
- val = SOUND_MASK_MIC;
- mixdev_ioctl(&s->codec, SOUND_MIXER_WRITE_RECSRC,
- (unsigned long)&val);
-
- /* mute AC'97 master and PCM when in S/PDIF mode */
- if (s->spdif_volume != -1) {
- val = 0x0000;
- s->codec.mixer_ioctl(&s->codec, SOUND_MIXER_WRITE_VOLUME,
- (unsigned long)&val);
- s->codec.mixer_ioctl(&s->codec, SOUND_MIXER_WRITE_PCM,
- (unsigned long)&val);
- }
-
-#ifdef IT8172_DEBUG
- sprintf(proc_str, "driver/%s/%d/ac97", IT8172_MODULE_NAME,
- s->codec.id);
- s->ac97_ps = create_proc_read_entry (proc_str, 0, NULL,
- ac97_read_proc, &s->codec);
-#endif
-
- /* store it in the driver field */
- pci_set_drvdata(pcidev, s);
- pcidev->dma_mask = 0xffffffff;
- /* put it into driver list */
- list_add_tail(&s->devs, &devs);
- /* increment devindex */
- if (devindex < NR_DEVICE-1)
- devindex++;
- return 0;
-
- err_dev3:
- unregister_sound_mixer(s->codec.dev_mixer);
- err_dev2:
- unregister_sound_dsp(s->dev_audio);
- err_dev1:
- err("cannot register misc device");
- free_irq(s->irq, s);
- err_irq:
- release_region(s->io, pci_resource_len(pcidev,0));
- err_region:
- kfree(s);
- return -1;
-}
-
-static void __devexit it8172_remove(struct pci_dev *dev)
-{
- struct it8172_state *s = pci_get_drvdata(dev);
-
- if (!s)
- return;
- list_del(&s->devs);
-#ifdef IT8172_DEBUG
- if (s->ps)
- remove_proc_entry(IT8172_MODULE_NAME, NULL);
-#endif /* IT8172_DEBUG */
- synchronize_irq(s->irq);
- free_irq(s->irq, s);
- release_region(s->io, pci_resource_len(dev,0));
- unregister_sound_dsp(s->dev_audio);
- unregister_sound_mixer(s->codec.dev_mixer);
- kfree(s);
- pci_set_drvdata(dev, NULL);
-}
-
-
-
-static struct pci_device_id id_table[] = {
- { PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G_AUDIO, PCI_ANY_ID,
- PCI_ANY_ID, 0, 0 },
- { 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, id_table);
-
-static struct pci_driver it8172_driver = {
- .name = IT8172_MODULE_NAME,
- .id_table = id_table,
- .probe = it8172_probe,
- .remove = __devexit_p(it8172_remove)
-};
-
-static int __init init_it8172(void)
-{
- info("version v0.5 time " __TIME__ " " __DATE__);
- return pci_register_driver(&it8172_driver);
-}
-
-static void __exit cleanup_it8172(void)
-{
- info("unloading");
- pci_unregister_driver(&it8172_driver);
-}
-
-module_init(init_it8172);
-module_exit(cleanup_it8172);
-
-/* --------------------------------------------------------------------- */
-
-#ifndef MODULE
-
-/* format is: it8172=[spdif],[i2s:<I2S format>] */
-
-static int __init it8172_setup(char *options)
-{
- char* this_opt;
- static unsigned __initdata nr_dev = 0;
-
- if (nr_dev >= NR_DEVICE)
- return 0;
-
- if (!options || !*options)
- return 0;
-
- while (this_opt = strsep(&options, ",")) {
- if (!*this_opt)
- continue;
- if (!strncmp(this_opt, "spdif", 5)) {
- spdif[nr_dev] = 1;
- } else if (!strncmp(this_opt, "i2s:", 4)) {
- if (!strncmp(this_opt+4, "dac", 3))
- i2s_fmt[nr_dev] = I2SMC_I2SF_DAC;
- else if (!strncmp(this_opt+4, "adc", 3))
- i2s_fmt[nr_dev] = I2SMC_I2SF_ADC;
- else if (!strncmp(this_opt+4, "i2s", 3))
- i2s_fmt[nr_dev] = I2SMC_I2SF_I2S;
- }
- }
-
- nr_dev++;
- return 1;
-}
-
-__setup("it8172=", it8172_setup);
-
-#endif /* MODULE */