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Diffstat (limited to 'sound/oss/ite8172.c')
| -rw-r--r-- | sound/oss/ite8172.c | 2261 |
1 files changed, 0 insertions, 2261 deletions
diff --git a/sound/oss/ite8172.c b/sound/oss/ite8172.c deleted file mode 100644 index 68aab3605d74..000000000000 --- 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 */ |