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Commit dbf3cb27 authored by Alan Cox's avatar Alan Cox Committed by Steve French
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[PATCH] update ITE audio

parent 8019adb6
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Showing with 1637 additions and 1333 deletions
sound/oss/ite8172.c
View file @ dbf3cb27
...@@ -42,15 +42,17 @@ ...@@ -42,15 +42,17 @@
* * Memory mapping the audio buffers, and the ioctl controls that go * * Memory mapping the audio buffers, and the ioctl controls that go
* with it. * with it.
* * S/PDIF output. * * S/PDIF output.
* * I2S support.
* 3. The following is not supported: * 3. The following is not supported:
* * I2S input.
* * legacy audio mode. * * legacy audio mode.
* 4. Support for volume button interrupts is implemented but doesn't * 4. Support for volume button interrupts is implemented but doesn't
* work yet. * work yet.
* *
* Revision history * Revision history
* 02.08.2001 0.1 Initial release * 02.08.2001 Initial release
* 06.22.2001 Added I2S support
*/ */
#include <linux/version.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/ioport.h> #include <linux/ioport.h>
...@@ -80,6 +82,19 @@ ...@@ -80,6 +82,19 @@
#undef IT8172_VERBOSE_DEBUG #undef IT8172_VERBOSE_DEBUG
#define DBG(x) {} #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)
static const unsigned sample_shift[] = { 0, 1, 1, 2 }; static const unsigned sample_shift[] = { 0, 1, 1, 2 };
...@@ -226,75 +241,84 @@ static const unsigned sample_shift[] = { 0, 1, 1, 2 }; ...@@ -226,75 +241,84 @@ static const unsigned sample_shift[] = { 0, 1, 1, 2 };
#define POLL_COUNT 0x5000 #define POLL_COUNT 0x5000
#define IT8172_MODULE_NAME "IT8172 audio" /* --------------------------------------------------------------------- */
#define PFX IT8172_MODULE_NAME ": "
/*
* 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 { struct it8172_state {
/* list of it8172 devices */ /* list of it8172 devices */
struct list_head devs; struct list_head devs;
/* the corresponding pci_dev structure */
struct pci_dev *dev;
/* soundcore stuff */ /* the corresponding pci_dev structure */
int dev_audio; struct pci_dev *dev;
/* hardware resources */ /* soundcore stuff */
unsigned long io; int dev_audio;
unsigned int irq;
/* PCI ID's */ /* hardware resources */
u16 vendor; unsigned long io;
u16 device; unsigned int irq;
u8 rev; /* the chip revision */
/* options */ /* PCI ID's */
int spdif_volume; /* S/PDIF output is enabled if != -1 */ 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 #ifdef IT8172_DEBUG
/* debug /proc entry */ /* debug /proc entry */
struct proc_dir_entry *ps; struct proc_dir_entry *ps;
struct proc_dir_entry *ac97_ps; struct proc_dir_entry *ac97_ps;
#endif /* IT8172_DEBUG */ #endif /* IT8172_DEBUG */
struct ac97_codec codec; struct ac97_codec *codec;
unsigned short pcc, capcc; unsigned short pcc, capcc;
unsigned dacrate, adcrate; unsigned dacrate, adcrate;
spinlock_t lock; spinlock_t lock;
struct semaphore open_sem; struct semaphore open_sem;
mode_t open_mode; mode_t open_mode;
wait_queue_head_t open_wait; wait_queue_head_t open_wait;
struct dmabuf { struct dmabuf {
void *rawbuf; void *rawbuf;
dma_addr_t dmaaddr; dma_addr_t dmaaddr;
unsigned buforder; unsigned buforder;
unsigned numfrag; unsigned numfrag;
unsigned fragshift; unsigned fragshift;
void* nextIn; void* nextIn;
void* nextOut; void* nextOut;
int count; int count;
int curBufPtr; int curBufPtr;
unsigned total_bytes; unsigned total_bytes;
unsigned error; /* over/underrun */ unsigned error; /* over/underrun */
wait_queue_head_t wait; wait_queue_head_t wait;
/* redundant, but makes calculations easier */ /* redundant, but makes calculations easier */
unsigned fragsize; unsigned fragsize;
unsigned dmasize; unsigned dmasize;
unsigned fragsamples; unsigned fragsamples;
/* OSS stuff */ /* OSS stuff */
unsigned mapped:1; unsigned mapped:1;
unsigned ready:1; unsigned ready:1;
unsigned stopped:1; unsigned stopped:1;
unsigned ossfragshift; unsigned ossfragshift;
int ossmaxfrags; int ossmaxfrags;
unsigned subdivision; unsigned subdivision;
} dma_dac, dma_adc; } dma_dac, dma_adc;
}; };
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
...@@ -305,114 +329,114 @@ static LIST_HEAD(devs); ...@@ -305,114 +329,114 @@ static LIST_HEAD(devs);
static inline unsigned ld2(unsigned int x) static inline unsigned ld2(unsigned int x)
{ {
unsigned r = 0; unsigned r = 0;
if (x >= 0x10000) { if (x >= 0x10000) {
x >>= 16; x >>= 16;
r += 16; r += 16;
} }
if (x >= 0x100) { if (x >= 0x100) {
x >>= 8; x >>= 8;
r += 8; r += 8;
} }
if (x >= 0x10) { if (x >= 0x10) {
x >>= 4; x >>= 4;
r += 4; r += 4;
} }
if (x >= 4) { if (x >= 4) {
x >>= 2; x >>= 2;
r += 2; r += 2;
} }
if (x >= 2) if (x >= 2)
r++; r++;
return r; return r;
} }
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
static void it8172_delay(int msec) static void it8172_delay(int msec)
{ {
unsigned long tmo; unsigned long tmo;
signed long tmo2; signed long tmo2;
if (in_interrupt()) if (in_interrupt())
return; return;
tmo = jiffies + (msec*HZ)/1000; tmo = jiffies + (msec*HZ)/1000;
for (;;) { for (;;) {
tmo2 = tmo - jiffies; tmo2 = tmo - jiffies;
if (tmo2 <= 0) if (tmo2 <= 0)
break; break;
schedule_timeout(tmo2); schedule_timeout(tmo2);
} }
} }
static unsigned short static unsigned short
get_compat_rate(unsigned* rate) get_compat_rate(unsigned* rate)
{ {
unsigned rate_out = *rate; unsigned rate_out = *rate;
unsigned short sr; unsigned short sr;
if (rate_out >= 46050) { if (rate_out >= 46050) {
sr = CC_SR_48000; rate_out = 48000; sr = CC_SR_48000; rate_out = 48000;
} else if (rate_out >= 41250) { } else if (rate_out >= 41250) {
sr = CC_SR_44100; rate_out = 44100; sr = CC_SR_44100; rate_out = 44100;
} else if (rate_out >= 35200) { } else if (rate_out >= 35200) {
sr = CC_SR_38400; rate_out = 38400; sr = CC_SR_38400; rate_out = 38400;
} else if (rate_out >= 27025) { } else if (rate_out >= 27025) {
sr = CC_SR_32000; rate_out = 32000; sr = CC_SR_32000; rate_out = 32000;
} else if (rate_out >= 20625) { } else if (rate_out >= 20625) {
sr = CC_SR_22050; rate_out = 22050; sr = CC_SR_22050; rate_out = 22050;
} else if (rate_out >= 17600) { } else if (rate_out >= 17600) {
sr = CC_SR_19200; rate_out = 19200; sr = CC_SR_19200; rate_out = 19200;
} else if (rate_out >= 13513) { } else if (rate_out >= 13513) {
sr = CC_SR_16000; rate_out = 16000; sr = CC_SR_16000; rate_out = 16000;
} else if (rate_out >= 10313) { } else if (rate_out >= 10313) {
sr = CC_SR_11025; rate_out = 11025; sr = CC_SR_11025; rate_out = 11025;
} else if (rate_out >= 8800) { } else if (rate_out >= 8800) {
sr = CC_SR_9600; rate_out = 9600; sr = CC_SR_9600; rate_out = 9600;
} else if (rate_out >= 6750) { } else if (rate_out >= 6750) {
sr = CC_SR_8000; rate_out = 8000; sr = CC_SR_8000; rate_out = 8000;
} else { } else {
sr = CC_SR_5500; rate_out = 5500; sr = CC_SR_5500; rate_out = 5500;
} }
*rate = rate_out; *rate = rate_out;
return sr; return sr;
} }
static void set_adc_rate(struct it8172_state *s, unsigned rate) static void set_adc_rate(struct it8172_state *s, unsigned rate)
{ {
unsigned long flags; unsigned long flags;
unsigned short sr; unsigned short sr;
sr = get_compat_rate(&rate); sr = get_compat_rate(&rate);
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
s->capcc &= ~CC_SR_MASK; s->capcc &= ~CC_SR_MASK;
s->capcc |= sr; s->capcc |= sr;
outw(s->capcc, s->io+IT_AC_CAPCC); outw(s->capcc, s->io+IT_AC_CAPCC);
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
s->adcrate = rate; s->adcrate = rate;
} }
static void set_dac_rate(struct it8172_state *s, unsigned rate) static void set_dac_rate(struct it8172_state *s, unsigned rate)
{ {
unsigned long flags; unsigned long flags;
unsigned short sr; unsigned short sr;
sr = get_compat_rate(&rate); sr = get_compat_rate(&rate);
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
s->pcc &= ~CC_SR_MASK; s->pcc &= ~CC_SR_MASK;
s->pcc |= sr; s->pcc |= sr;
outw(s->pcc, s->io+IT_AC_PCC); outw(s->pcc, s->io+IT_AC_PCC);
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
s->dacrate = rate; s->dacrate = rate;
} }
...@@ -420,89 +444,88 @@ static void set_dac_rate(struct it8172_state *s, unsigned rate) ...@@ -420,89 +444,88 @@ static void set_dac_rate(struct it8172_state *s, unsigned rate)
static u16 rdcodec(struct ac97_codec *codec, u8 addr) static u16 rdcodec(struct ac97_codec *codec, u8 addr)
{ {
struct it8172_state *s = (struct it8172_state *)codec->private_data; struct it8172_state *s = (struct it8172_state *)codec->private_data;
unsigned long flags; unsigned long flags;
unsigned short circp, data; unsigned short circp, data;
int i; int i;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
for (i = 0; i < POLL_COUNT; i++) for (i = 0; i < POLL_COUNT; i++)
if (!(inw(s->io+IT_AC_CIRCP) & CIRCP_CPS)) if (!(inw(s->io+IT_AC_CIRCP) & CIRCP_CPS))
break; break;
if (i == POLL_COUNT) if (i == POLL_COUNT)
printk(KERN_INFO PFX "rdcodec: codec ready poll expired!\n"); err("rdcodec: codec ready poll expired!");
circp = addr & CIRCP_CIA_MASK; circp = addr & CIRCP_CIA_MASK;
circp |= (codec->id << CIRCP_CID_BIT); circp |= (codec->id << CIRCP_CID_BIT);
circp |= CIRCP_RWC; // read command circp |= CIRCP_RWC; // read command
outw(circp, s->io+IT_AC_CIRCP); outw(circp, s->io+IT_AC_CIRCP);
/* now wait for the data */ /* now wait for the data */
for (i = 0; i < POLL_COUNT; i++) for (i = 0; i < POLL_COUNT; i++)
if (inw(s->io+IT_AC_CIRCP) & CIRCP_DPVF) if (inw(s->io+IT_AC_CIRCP) & CIRCP_DPVF)
break; break;
if (i == POLL_COUNT) if (i == POLL_COUNT)
printk(KERN_INFO PFX "rdcodec: read poll expired!\n"); err("rdcodec: read poll expired!");
data = inw(s->io+IT_AC_CIRDP); data = inw(s->io+IT_AC_CIRDP);
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
return data; return data;
} }
static void wrcodec(struct ac97_codec *codec, u8 addr, u16 data) static void wrcodec(struct ac97_codec *codec, u8 addr, u16 data)
{ {
struct it8172_state *s = (struct it8172_state *)codec->private_data; struct it8172_state *s = (struct it8172_state *)codec->private_data;
unsigned long flags; unsigned long flags;
unsigned short circp; unsigned short circp;
int i; int i;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
for (i = 0; i < POLL_COUNT; i++) for (i = 0; i < POLL_COUNT; i++)
if (!(inw(s->io+IT_AC_CIRCP) & CIRCP_CPS)) if (!(inw(s->io+IT_AC_CIRCP) & CIRCP_CPS))
break; break;
if (i == POLL_COUNT) if (i == POLL_COUNT)
printk(KERN_INFO PFX "wrcodec: codec ready poll expired!\n"); err("wrcodec: codec ready poll expired!");
circp = addr & CIRCP_CIA_MASK; circp = addr & CIRCP_CIA_MASK;
circp |= (codec->id << CIRCP_CID_BIT); circp |= (codec->id << CIRCP_CID_BIT);
circp &= ~CIRCP_RWC; // write command circp &= ~CIRCP_RWC; // write command
outw(data, s->io+IT_AC_CIRDP); // send data first outw(data, s->io+IT_AC_CIRDP); // send data first
outw(circp, s->io+IT_AC_CIRCP); outw(circp, s->io+IT_AC_CIRCP);
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
} }
static void waitcodec(struct ac97_codec *codec) static void waitcodec(struct ac97_codec *codec)
{ {
unsigned short temp; unsigned short temp;
/* codec_wait is used to wait for a ready state after /* codec_wait is used to wait for a ready state after
an AC97_RESET. */ an AC97_RESET. */
it8172_delay(10); 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); 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***/ // Check if Codec REF,ANL,DAC,ADC ready***/
if ((temp & 0x3f0f) != 0x000f) { if ((temp & 0x3f0f) != 0x000f) {
printk(KERN_INFO PFX "codec reg 26 status (0x%x) not ready!!\n", err("codec reg 26 status (0x%x) not ready!!", temp);
temp); return;
return; }
}
} }
...@@ -510,120 +533,120 @@ static void waitcodec(struct ac97_codec *codec) ...@@ -510,120 +533,120 @@ static void waitcodec(struct ac97_codec *codec)
static inline void stop_adc(struct it8172_state *s) static inline void stop_adc(struct it8172_state *s)
{ {
struct dmabuf* db = &s->dma_adc; struct dmabuf* db = &s->dma_adc;
unsigned long flags; unsigned long flags;
unsigned char imc; unsigned char imc;
if (db->stopped) if (db->stopped)
return; return;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
s->capcc &= ~(CC_CA | CC_CP | CC_CB2L | CC_CB1L); s->capcc &= ~(CC_CA | CC_CP | CC_CB2L | CC_CB1L);
s->capcc |= CC_CSP; s->capcc |= CC_CSP;
outw(s->capcc, s->io+IT_AC_CAPCC); outw(s->capcc, s->io+IT_AC_CAPCC);
// disable capture interrupt // disable capture interrupt
imc = inb(s->io+IT_AC_IMC); imc = inb(s->io+IT_AC_IMC);
outb(imc | IMC_CCIM, s->io+IT_AC_IMC); outb(imc | IMC_CCIM, s->io+IT_AC_IMC);
db->stopped = 1; db->stopped = 1;
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
} }
static inline void stop_dac(struct it8172_state *s) static inline void stop_dac(struct it8172_state *s)
{ {
struct dmabuf* db = &s->dma_dac; struct dmabuf* db = &s->dma_dac;
unsigned long flags; unsigned long flags;
unsigned char imc; unsigned char imc;
if (db->stopped) if (db->stopped)
return; return;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
s->pcc &= ~(CC_CA | CC_CP | CC_CB2L | CC_CB1L); s->pcc &= ~(CC_CA | CC_CP | CC_CB2L | CC_CB1L);
s->pcc |= CC_CSP; s->pcc |= CC_CSP;
outw(s->pcc, s->io+IT_AC_PCC); outw(s->pcc, s->io+IT_AC_PCC);
// disable playback interrupt // disable playback interrupt
imc = inb(s->io+IT_AC_IMC); imc = inb(s->io+IT_AC_IMC);
outb(imc | IMC_PCIM, s->io+IT_AC_IMC); outb(imc | IMC_PCIM, s->io+IT_AC_IMC);
db->stopped = 1; db->stopped = 1;
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
} }
static void start_dac(struct it8172_state *s) static void start_dac(struct it8172_state *s)
{ {
struct dmabuf* db = &s->dma_dac; struct dmabuf* db = &s->dma_dac;
unsigned long flags; unsigned long flags;
unsigned char imc; unsigned char imc;
unsigned long buf1, buf2; unsigned long buf1, buf2;
if (!db->stopped) if (!db->stopped)
return; return;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
// reset Buffer 1 and 2 pointers to nextOut and nextOut+fragsize // reset Buffer 1 and 2 pointers to nextOut and nextOut+fragsize
buf1 = virt_to_bus(db->nextOut); buf1 = virt_to_bus(db->nextOut);
buf2 = buf1 + db->fragsize; buf2 = buf1 + db->fragsize;
if (buf2 >= db->dmaaddr + db->dmasize) if (buf2 >= db->dmaaddr + db->dmasize)
buf2 -= db->dmasize; buf2 -= db->dmasize;
outl(buf1, s->io+IT_AC_PCB1STA); outl(buf1, s->io+IT_AC_PCB1STA);
outl(buf2, s->io+IT_AC_PCB2STA); outl(buf2, s->io+IT_AC_PCB2STA);
db->curBufPtr = IT_AC_PCB1STA; db->curBufPtr = IT_AC_PCB1STA;
// enable playback interrupt // enable playback interrupt
imc = inb(s->io+IT_AC_IMC); imc = inb(s->io+IT_AC_IMC);
outb(imc & ~IMC_PCIM, 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_CSP | CC_CP | CC_CB2L | CC_CB1L);
s->pcc |= CC_CA; s->pcc |= CC_CA;
outw(s->pcc, s->io+IT_AC_PCC); outw(s->pcc, s->io+IT_AC_PCC);
db->stopped = 0; db->stopped = 0;
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
} }
static void start_adc(struct it8172_state *s) static void start_adc(struct it8172_state *s)
{ {
struct dmabuf* db = &s->dma_adc; struct dmabuf* db = &s->dma_adc;
unsigned long flags; unsigned long flags;
unsigned char imc; unsigned char imc;
unsigned long buf1, buf2; unsigned long buf1, buf2;
if (!db->stopped) if (!db->stopped)
return; return;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
// reset Buffer 1 and 2 pointers to nextIn and nextIn+fragsize // reset Buffer 1 and 2 pointers to nextIn and nextIn+fragsize
buf1 = virt_to_bus(db->nextIn); buf1 = virt_to_bus(db->nextIn);
buf2 = buf1 + db->fragsize; buf2 = buf1 + db->fragsize;
if (buf2 >= db->dmaaddr + db->dmasize) if (buf2 >= db->dmaaddr + db->dmasize)
buf2 -= db->dmasize; buf2 -= db->dmasize;
outl(buf1, s->io+IT_AC_CAPB1STA); outl(buf1, s->io+IT_AC_CAPB1STA);
outl(buf2, s->io+IT_AC_CAPB2STA); outl(buf2, s->io+IT_AC_CAPB2STA);
db->curBufPtr = IT_AC_CAPB1STA; db->curBufPtr = IT_AC_CAPB1STA;
// enable capture interrupt // enable capture interrupt
imc = inb(s->io+IT_AC_IMC); imc = inb(s->io+IT_AC_IMC);
outb(imc & ~IMC_CCIM, 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_CSP | CC_CP | CC_CB2L | CC_CB1L);
s->capcc |= CC_CA; s->capcc |= CC_CA;
outw(s->capcc, s->io+IT_AC_CAPCC); outw(s->capcc, s->io+IT_AC_CAPCC);
db->stopped = 0; db->stopped = 0;
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
} }
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
...@@ -633,94 +656,103 @@ static void start_adc(struct it8172_state *s) ...@@ -633,94 +656,103 @@ static void start_adc(struct it8172_state *s)
static inline void dealloc_dmabuf(struct it8172_state *s, struct dmabuf *db) static inline void dealloc_dmabuf(struct it8172_state *s, struct dmabuf *db)
{ {
struct page *page, *pend; struct page *page, *pend;
if (db->rawbuf) { if (db->rawbuf) {
/* undo marking the pages as reserved */ /* undo marking the pages as reserved */
pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1); pend = virt_to_page(db->rawbuf +
for (page = virt_to_page(db->rawbuf); page <= pend; page++) (PAGE_SIZE << db->buforder) - 1);
ClearPageReserved(page); for (page = virt_to_page(db->rawbuf); page <= pend; page++)
pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, mem_map_unreserve(page);
db->rawbuf, db->dmaaddr); 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; db->rawbuf = db->nextIn = db->nextOut = NULL;
db->mapped = db->ready = 0;
} }
static int prog_dmabuf(struct it8172_state *s, struct dmabuf *db, static int prog_dmabuf(struct it8172_state *s, struct dmabuf *db,
unsigned rate, unsigned fmt, unsigned reg) unsigned rate, unsigned fmt, unsigned reg)
{ {
int order; int order;
unsigned bytepersec; unsigned bytepersec;
unsigned bufs; unsigned bufs;
struct page *page, *pend; struct page *page, *pend;
if (!db->rawbuf) { if (!db->rawbuf) {
db->ready = db->mapped = 0; db->ready = db->mapped = 0;
for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--) for (order = DMABUF_DEFAULTORDER;
if ((db->rawbuf = pci_alloc_consistent(s->dev, order >= DMABUF_MINORDER; order--)
PAGE_SIZE << order, if ((db->rawbuf =
&db->dmaaddr))) pci_alloc_consistent(s->dev,
break; PAGE_SIZE << order,
if (!db->rawbuf) &db->dmaaddr)))
return -ENOMEM; break;
db->buforder = order; if (!db->rawbuf)
/* now mark the pages as reserved; return -ENOMEM;
otherwise remap_page_range doesn't do what we want */ db->buforder = order;
pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1); /* now mark the pages as reserved;
for (page = virt_to_page(db->rawbuf); page <= pend; page++) otherwise remap_page_range doesn't do what we want */
SetPageReserved(page); pend = virt_to_page(db->rawbuf +
} (PAGE_SIZE << db->buforder) - 1);
for (page = virt_to_page(db->rawbuf); page <= pend; page++)
db->count = 0; mem_map_reserve(page);
db->nextIn = db->nextOut = db->rawbuf; }
db->count = 0;
db->nextIn = db->nextOut = db->rawbuf;
bytepersec = rate << sample_shift[fmt]; bytepersec = rate << sample_shift[fmt];
bufs = PAGE_SIZE << db->buforder; bufs = PAGE_SIZE << db->buforder;
if (db->ossfragshift) { if (db->ossfragshift) {
if ((1000 << db->ossfragshift) < bytepersec) if ((1000 << db->ossfragshift) < bytepersec)
db->fragshift = ld2(bytepersec/1000); db->fragshift = ld2(bytepersec/1000);
else else
db->fragshift = db->ossfragshift; db->fragshift = db->ossfragshift;
} else { } else {
db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->fragshift = ld2(bytepersec/100/(db->subdivision ?
db->subdivision : 1)); db->subdivision : 1));
if (db->fragshift < 3) if (db->fragshift < 3)
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->numfrag = bufs >> db->fragshift;
} while (db->numfrag < 4 && db->fragshift > 3) {
db->fragsize = 1 << db->fragshift; db->fragshift--;
if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag) db->numfrag = bufs >> db->fragshift;
db->numfrag = db->ossmaxfrags; }
db->fragsamples = db->fragsize >> sample_shift[fmt]; db->fragsize = 1 << db->fragshift;
db->dmasize = db->numfrag << db->fragshift; if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
memset(db->rawbuf, (fmt & (CC_DF>>CC_FMT_BIT)) ? 0 : 0x80, db->dmasize); 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);
// set data length register #ifdef IT8172_VERBOSE_DEBUG
outw(db->fragsize, s->io+reg+2); dbg("rate=%d, fragsize=%d, numfrag=%d, dmasize=%d",
db->ready = 1; rate, db->fragsize, db->numfrag, db->dmasize);
#endif
// set data length register
outw(db->fragsize, s->io+reg+2);
db->ready = 1;
return 0; return 0;
} }
static inline int prog_dmabuf_adc(struct it8172_state *s) static inline int prog_dmabuf_adc(struct it8172_state *s)
{ {
stop_adc(s); stop_adc(s);
return prog_dmabuf(s, &s->dma_adc, s->adcrate, return prog_dmabuf(s, &s->dma_adc, s->adcrate,
(s->capcc & CC_FMT_MASK) >> CC_FMT_BIT, (s->capcc & CC_FMT_MASK) >> CC_FMT_BIT,
IT_AC_CAPCC); IT_AC_CAPCC);
} }
static inline int prog_dmabuf_dac(struct it8172_state *s) static inline int prog_dmabuf_dac(struct it8172_state *s)
{ {
stop_dac(s); stop_dac(s);
return prog_dmabuf(s, &s->dma_dac, s->dacrate, return prog_dmabuf(s, &s->dma_dac, s->dacrate,
(s->pcc & CC_FMT_MASK) >> CC_FMT_BIT, (s->pcc & CC_FMT_MASK) >> CC_FMT_BIT,
IT_AC_PCC); IT_AC_PCC);
} }
...@@ -728,918 +760,1127 @@ static inline int prog_dmabuf_dac(struct it8172_state *s) ...@@ -728,918 +760,1127 @@ static inline int prog_dmabuf_dac(struct it8172_state *s)
static irqreturn_t it8172_interrupt(int irq, void *dev_id, struct pt_regs *regs) static irqreturn_t it8172_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{ {
struct it8172_state *s = (struct it8172_state *)dev_id; struct it8172_state *s = (struct it8172_state *)dev_id;
struct dmabuf* dac = &s->dma_dac; struct dmabuf* dac = &s->dma_dac;
struct dmabuf* adc = &s->dma_adc; struct dmabuf* adc = &s->dma_adc;
unsigned char isc, vs; unsigned char isc, vs;
unsigned short vol, mute; unsigned short vol, mute;
unsigned long newptr; unsigned long newptr;
spin_lock(&s->lock); spin_lock(&s->lock);
isc = inb(s->io+IT_AC_ISC); isc = inb(s->io+IT_AC_ISC);
/* fastpath out, to ease interrupt sharing */ /* fastpath out, to ease interrupt sharing */
if (!(isc & (ISC_VCI | ISC_CCI | ISC_PCI))) { if (!(isc & (ISC_VCI | ISC_CCI | ISC_PCI))) {
spin_unlock(&s->lock); spin_unlock(&s->lock);
return IRQ_NONE; return IRQ_NONE;
} }
/* clear audio interrupts first */
outb(isc | ISC_VCI | ISC_CCI | ISC_PCI, s->io+IT_AC_ISC);
/* handle volume button events */ /* clear audio interrupts first */
if (isc & ISC_VCI) { outb(isc | ISC_VCI | ISC_CCI | ISC_PCI, s->io+IT_AC_ISC);
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 */ /* handle volume button events (ignore if S/PDIF enabled) */
if (isc & ISC_CCI) { if ((isc & ISC_VCI) && s->spdif_volume == -1) {
if (adc->count > adc->dmasize - adc->fragsize) { vs = inb(s->io+IT_AC_VS);
// Overrun. Stop ADC and log the error outb(0, s->io+IT_AC_VS);
stop_adc(s); vol = inw(s->io+IT_AC_PCMOV);
adc->error++; mute = vol & PCMOV_PCMOM;
printk(KERN_INFO PFX "adc overrun\n"); vol &= PCMOV_PCMLCG_MASK;
} else { if ((vs & VS_VUP) && vol > 0)
newptr = virt_to_bus(adc->nextIn) + 2*adc->fragsize; vol--;
if (newptr >= adc->dmaaddr + adc->dmasize) if ((vs & VS_VDP) && vol < 0x1f)
newptr -= adc->dmasize; 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); outl(newptr, s->io+adc->curBufPtr);
adc->curBufPtr = (adc->curBufPtr == IT_AC_CAPB1STA) ? adc->curBufPtr = (adc->curBufPtr == IT_AC_CAPB1STA) ?
IT_AC_CAPB2STA : IT_AC_CAPB1STA; IT_AC_CAPB2STA : IT_AC_CAPB1STA;
adc->nextIn += adc->fragsize; adc->nextIn += adc->fragsize;
if (adc->nextIn >= adc->rawbuf + adc->dmasize) if (adc->nextIn >= adc->rawbuf + adc->dmasize)
adc->nextIn -= adc->dmasize; adc->nextIn -= adc->dmasize;
adc->count += adc->fragsize; adc->count += adc->fragsize;
adc->total_bytes += adc->fragsize; adc->total_bytes += adc->fragsize;
/* wake up anybody listening */ /* wake up anybody listening */
if (waitqueue_active(&adc->wait)) if (waitqueue_active(&adc->wait))
wake_up_interruptible(&adc->wait); wake_up_interruptible(&adc->wait);
}
} }
}
/* update playback pointers */ /* update playback pointers */
if (isc & ISC_PCI) { if (isc & ISC_PCI) {
newptr = virt_to_bus(dac->nextOut) + 2*dac->fragsize; newptr = virt_to_bus(dac->nextOut) + 2*dac->fragsize;
if (newptr >= dac->dmaaddr + dac->dmasize) if (newptr >= dac->dmaaddr + dac->dmasize)
newptr -= dac->dmasize; newptr -= dac->dmasize;
outl(newptr, s->io+dac->curBufPtr); outl(newptr, s->io+dac->curBufPtr);
dac->curBufPtr = (dac->curBufPtr == IT_AC_PCB1STA) ? dac->curBufPtr = (dac->curBufPtr == IT_AC_PCB1STA) ?
IT_AC_PCB2STA : IT_AC_PCB1STA; IT_AC_PCB2STA : IT_AC_PCB1STA;
dac->nextOut += dac->fragsize; dac->nextOut += dac->fragsize;
if (dac->nextOut >= dac->rawbuf + dac->dmasize) if (dac->nextOut >= dac->rawbuf + dac->dmasize)
dac->nextOut -= dac->dmasize; dac->nextOut -= dac->dmasize;
dac->count -= dac->fragsize; dac->count -= dac->fragsize;
dac->total_bytes += dac->fragsize; dac->total_bytes += dac->fragsize;
/* wake up anybody listening */ /* wake up anybody listening */
if (waitqueue_active(&dac->wait)) if (waitqueue_active(&dac->wait))
wake_up_interruptible(&dac->wait); wake_up_interruptible(&dac->wait);
if (dac->count <= 0) if (dac->count <= 0)
stop_dac(s); stop_dac(s);
} }
spin_unlock(&s->lock); spin_unlock(&s->lock);
return IRQ_HANDLED; return IRQ_HANDLED;
} }
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
static loff_t it8172_llseek(struct file *file, loff_t offset, int origin)
{
return -ESPIPE;
}
static int it8172_open_mixdev(struct inode *inode, struct file *file) static int it8172_open_mixdev(struct inode *inode, struct file *file)
{ {
int minor = minor(inode->i_rdev); int minor = MINOR(inode->i_rdev);
struct list_head *list; struct list_head *list;
struct it8172_state *s; struct it8172_state *s;
for (list = devs.next; ; list = list->next) { for (list = devs.next; ; list = list->next) {
if (list == &devs) if (list == &devs)
return -ENODEV; return -ENODEV;
s = list_entry(list, struct it8172_state, devs); s = list_entry(list, struct it8172_state, devs);
if (s->codec.dev_mixer == minor) if (s->codec->dev_mixer == minor)
break; break;
} }
file->private_data = s; file->private_data = s;
return 0; return 0;
} }
static int it8172_release_mixdev(struct inode *inode, struct file *file) static int it8172_release_mixdev(struct inode *inode, struct file *file)
{ {
return 0; 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, static int mixdev_ioctl(struct ac97_codec *codec, unsigned int cmd,
unsigned long arg) unsigned long arg)
{ {
return codec->mixer_ioctl(codec, cmd, 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, static int it8172_ioctl_mixdev(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg) unsigned int cmd, unsigned long arg)
{ {
struct it8172_state *s = (struct it8172_state *)file->private_data; struct it8172_state *s = (struct it8172_state *)file->private_data;
struct ac97_codec *codec = &s->codec; struct ac97_codec *codec = s->codec;
return mixdev_ioctl(codec, cmd, arg); return mixdev_ioctl(codec, cmd, arg);
} }
static /*const*/ struct file_operations it8172_mixer_fops = { static /*const*/ struct file_operations it8172_mixer_fops = {
.owner = THIS_MODULE, owner: THIS_MODULE,
.llseek = no_llseek, llseek: it8172_llseek,
.ioctl = it8172_ioctl_mixdev, ioctl: it8172_ioctl_mixdev,
.open = it8172_open_mixdev, open: it8172_open_mixdev,
.release = it8172_release_mixdev, release: it8172_release_mixdev,
}; };
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
static int drain_dac(struct it8172_state *s, int nonblock) static int drain_dac(struct it8172_state *s, int nonblock)
{ {
unsigned long flags; unsigned long flags;
int count, tmo; int count, tmo;
if (s->dma_dac.mapped || !s->dma_dac.ready) if (s->dma_dac.mapped || !s->dma_dac.ready || s->dma_dac.stopped)
return 0; return 0;
for (;;) { for (;;) {
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
count = s->dma_dac.count; count = s->dma_dac.count;
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
if (count <= 0) if (count <= 0)
break; 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)) if (signal_pending(current))
break; return -ERESTARTSYS;
if (nonblock) return 0;
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;
} }
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
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, bufcnt, avail;
if (ppos != &file->f_pos) /*
return -ESPIPE; * Copy audio data to/from user buffer from/to dma buffer, taking care
if (db->mapped) * that we wrap when reading/writing the dma buffer. Returns actual byte
return -ENXIO; * count written to or read from the dma buffer.
if (!access_ok(VERIFY_WRITE, buffer, count)) */
return -EFAULT; static int copy_dmabuf_user(struct dmabuf *db, char* userbuf,
ret = 0; int count, int to_user)
{
while (count > 0) { char* bufptr = to_user ? db->nextOut : db->nextIn;
// wait for samples in capture buffer char* bufend = db->rawbuf + db->dmasize;
do {
spin_lock_irqsave(&s->lock, flags); if (bufptr + count > bufend) {
if (db->stopped) int partial = (int)(bufend - bufptr);
start_adc(s); if (to_user) {
avail = db->count; if (copy_to_user(userbuf, bufptr, partial))
spin_unlock_irqrestore(&s->lock, flags); return -EFAULT;
if (avail <= 0) { if (copy_to_user(userbuf + partial, db->rawbuf,
if (file->f_flags & O_NONBLOCK) { count - partial))
if (!ret) return -EFAULT;
ret = -EAGAIN; } else {
return ret; if (copy_from_user(bufptr, userbuf, partial))
return -EFAULT;
if (copy_from_user(db->rawbuf,
userbuf + partial,
count - partial))
return -EFAULT;
} }
interruptible_sleep_on(&db->wait); } else {
if (signal_pending(current)) { if (to_user) {
if (!ret) if (copy_to_user(userbuf, bufptr, count))
ret = -ERESTARTSYS; return -EFAULT;
return ret; } else {
if (copy_from_user(bufptr, userbuf, count))
return -EFAULT;
} }
}
} while (avail <= 0);
cnt = count > avail ? avail : count;
bufcnt = cnt;
if (cnt % db->fragsize) {
// round count up to nearest fragment
int newcnt = db->fragsize * ((cnt + db->fragsize) / db->fragsize);
cnt = newcnt;
} }
return count;
}
// copy from nextOut to user
if (copy_to_user(buffer, db->nextOut, bufcnt)) {
if (!ret)
ret = -EFAULT;
return ret;
}
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 (ppos != &file->f_pos)
return -ESPIPE;
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); spin_lock_irqsave(&s->lock, flags);
db->count -= cnt; 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); spin_unlock_irqrestore(&s->lock, flags);
db->nextOut += cnt; return ret;
if (db->nextOut >= db->rawbuf + db->dmasize)
db->nextOut -= db->dmasize;
count -= bufcnt;
buffer += bufcnt;
ret += bufcnt;
} // while (count > 0)
return ret;
} }
static ssize_t it8172_write(struct file *file, const char *buffer, static ssize_t it8172_write(struct file *file, const char *buffer,
size_t count, loff_t *ppos) size_t count, loff_t *ppos)
{ {
struct it8172_state *s = (struct it8172_state *)file->private_data; struct it8172_state *s = (struct it8172_state *)file->private_data;
struct dmabuf *db = &s->dma_dac; struct dmabuf *db = &s->dma_dac;
ssize_t ret; ssize_t ret;
unsigned long flags; unsigned long flags;
int cnt, bufcnt, avail; int cnt, remainder, avail;
if (ppos != &file->f_pos) if (ppos != &file->f_pos)
return -ESPIPE; return -ESPIPE;
if (db->mapped) if (db->mapped)
return -ENXIO; return -ENXIO;
if (!access_ok(VERIFY_READ, buffer, count)) if (!access_ok(VERIFY_READ, buffer, count))
return -EFAULT; return -EFAULT;
ret = 0; ret = 0;
while (count > 0) { while (count > 0) {
// wait for space in playback buffer // wait for space in playback buffer
do { do {
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
avail = db->dmasize - db->count; avail = db->dmasize - db->count;
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
if (avail <= 0) { if (avail <= 0) {
if (file->f_flags & O_NONBLOCK) { if (file->f_flags & O_NONBLOCK) {
if (!ret) if (!ret)
ret = -EAGAIN; ret = -EAGAIN;
return ret; return ret;
} }
interruptible_sleep_on(&db->wait); interruptible_sleep_on(&db->wait);
if (signal_pending(current)) { if (signal_pending(current)) {
if (!ret) if (!ret)
ret = -ERESTARTSYS; ret = -ERESTARTSYS;
return ret; return ret;
} }
} }
} while (avail <= 0); } while (avail <= 0);
cnt = count > avail ? avail : count; // copy to nextIn
// copy to nextIn if ((cnt = copy_dmabuf_user(db, (char*)buffer,
if (copy_from_user(db->nextIn, buffer, cnt)) { count > avail ?
if (!ret) avail : count, 0)) < 0) {
ret = -EFAULT; if (!ret)
return ret; ret = -EFAULT;
} return ret;
}
bufcnt = cnt;
if (cnt % db->fragsize) {
// round count up to nearest fragment, and fill remainder of
// fragment with silence
int newcnt = db->fragsize * ((cnt + db->fragsize) / db->fragsize);
memset(db->nextIn + cnt, (s->pcc & CC_DF) ? 0 : 0x80, newcnt - cnt);
cnt = newcnt;
}
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
db->count += cnt; db->count += cnt;
if (db->stopped) if (db->stopped)
start_dac(s); start_dac(s);
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
db->nextIn += cnt; db->nextIn += cnt;
if (db->nextIn >= db->rawbuf + db->dmasize) if (db->nextIn >= db->rawbuf + db->dmasize)
db->nextIn -= db->dmasize; db->nextIn -= db->dmasize;
count -= bufcnt; count -= cnt;
buffer += bufcnt; buffer += cnt;
ret += bufcnt; ret += cnt;
} // while (count > 0) } // while (count > 0)
return ret; /*
* 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 */ /* No kernel lock - we have our own spinlock */
static unsigned int it8172_poll(struct file *file, static unsigned int it8172_poll(struct file *file,
struct poll_table_struct *wait) struct poll_table_struct *wait)
{ {
struct it8172_state *s = (struct it8172_state *)file->private_data; struct it8172_state *s = (struct it8172_state *)file->private_data;
unsigned long flags; unsigned long flags;
unsigned int mask = 0; unsigned int mask = 0;
if (file->f_mode & FMODE_WRITE) if (file->f_mode & FMODE_WRITE) {
poll_wait(file, &s->dma_dac.wait, wait); if (!s->dma_dac.ready)
if (file->f_mode & FMODE_READ) return 0;
poll_wait(file, &s->dma_adc.wait, wait); poll_wait(file, &s->dma_dac.wait, wait);
spin_lock_irqsave(&s->lock, flags); }
if (file->f_mode & FMODE_READ) { if (file->f_mode & FMODE_READ) {
if (s->dma_adc.count >= (signed)s->dma_adc.fragsize) if (!s->dma_adc.ready)
mask |= POLLIN | POLLRDNORM; return 0;
} poll_wait(file, &s->dma_adc.wait, wait);
if (file->f_mode & FMODE_WRITE) { }
if (s->dma_dac.mapped) {
if (s->dma_dac.count >= (signed)s->dma_dac.fragsize) spin_lock_irqsave(&s->lock, flags);
mask |= POLLOUT | POLLWRNORM; if (file->f_mode & FMODE_READ) {
} else { if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
if ((signed)s->dma_dac.dmasize >= mask |= POLLIN | POLLRDNORM;
s->dma_dac.count + (signed)s->dma_dac.fragsize) }
mask |= POLLOUT | POLLWRNORM; 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);
spin_unlock_irqrestore(&s->lock, flags); return mask;
return mask;
} }
static int it8172_mmap(struct file *file, struct vm_area_struct *vma) static int it8172_mmap(struct file *file, struct vm_area_struct *vma)
{ {
struct it8172_state *s = (struct it8172_state *)file->private_data; struct it8172_state *s = (struct it8172_state *)file->private_data;
struct dmabuf *db; struct dmabuf *db;
unsigned long size; unsigned long size;
lock_kernel(); lock_kernel();
if (vma->vm_flags & VM_WRITE) if (vma->vm_flags & VM_WRITE)
db = &s->dma_dac; db = &s->dma_dac;
else if (vma->vm_flags & VM_READ) else if (vma->vm_flags & VM_READ)
db = &s->dma_adc; db = &s->dma_adc;
else { else {
unlock_kernel(); unlock_kernel();
return -EINVAL; return -EINVAL;
} }
if (vma->vm_pgoff != 0) { if (vma->vm_pgoff != 0) {
unlock_kernel(); unlock_kernel();
return -EINVAL; return -EINVAL;
} }
size = vma->vm_end - vma->vm_start; size = vma->vm_end - vma->vm_start;
if (size > (PAGE_SIZE << db->buforder)) { if (size > (PAGE_SIZE << db->buforder)) {
unlock_kernel(); unlock_kernel();
return -EINVAL; return -EINVAL;
} }
if (remap_page_range(vma, vma->vm_start, virt_to_phys(db->rawbuf), if (remap_page_range(vma, vma->vm_start, virt_to_phys(db->rawbuf),
size, vma->vm_page_prot)) { size, vma->vm_page_prot)) {
unlock_kernel();
return -EAGAIN;
}
db->mapped = 1;
unlock_kernel(); unlock_kernel();
return -EAGAIN; return 0;
}
db->mapped = 1;
unlock_kernel();
return 0;
} }
#ifdef IT8172_VERBOSE_DEBUG #ifdef IT8172_VERBOSE_DEBUG
static struct ioctl_str_t { static struct ioctl_str_t {
unsigned int cmd; unsigned int cmd;
const char* str; const char* str;
} ioctl_str[] = { } ioctl_str[] = {
{SNDCTL_DSP_RESET, "SNDCTL_DSP_RESET"}, {SNDCTL_DSP_RESET, "SNDCTL_DSP_RESET"},
{SNDCTL_DSP_SYNC, "SNDCTL_DSP_SYNC"}, {SNDCTL_DSP_SYNC, "SNDCTL_DSP_SYNC"},
{SNDCTL_DSP_SPEED, "SNDCTL_DSP_SPEED"}, {SNDCTL_DSP_SPEED, "SNDCTL_DSP_SPEED"},
{SNDCTL_DSP_STEREO, "SNDCTL_DSP_STEREO"}, {SNDCTL_DSP_STEREO, "SNDCTL_DSP_STEREO"},
{SNDCTL_DSP_GETBLKSIZE, "SNDCTL_DSP_GETBLKSIZE"}, {SNDCTL_DSP_GETBLKSIZE, "SNDCTL_DSP_GETBLKSIZE"},
{SNDCTL_DSP_SAMPLESIZE, "SNDCTL_DSP_SAMPLESIZE"}, {SNDCTL_DSP_SAMPLESIZE, "SNDCTL_DSP_SAMPLESIZE"},
{SNDCTL_DSP_CHANNELS, "SNDCTL_DSP_CHANNELS"}, {SNDCTL_DSP_CHANNELS, "SNDCTL_DSP_CHANNELS"},
{SOUND_PCM_WRITE_CHANNELS, "SOUND_PCM_WRITE_CHANNELS"}, {SOUND_PCM_WRITE_CHANNELS, "SOUND_PCM_WRITE_CHANNELS"},
{SOUND_PCM_WRITE_FILTER, "SOUND_PCM_WRITE_FILTER"}, {SOUND_PCM_WRITE_FILTER, "SOUND_PCM_WRITE_FILTER"},
{SNDCTL_DSP_POST, "SNDCTL_DSP_POST"}, {SNDCTL_DSP_POST, "SNDCTL_DSP_POST"},
{SNDCTL_DSP_SUBDIVIDE, "SNDCTL_DSP_SUBDIVIDE"}, {SNDCTL_DSP_SUBDIVIDE, "SNDCTL_DSP_SUBDIVIDE"},
{SNDCTL_DSP_SETFRAGMENT, "SNDCTL_DSP_SETFRAGMENT"}, {SNDCTL_DSP_SETFRAGMENT, "SNDCTL_DSP_SETFRAGMENT"},
{SNDCTL_DSP_GETFMTS, "SNDCTL_DSP_GETFMTS"}, {SNDCTL_DSP_GETFMTS, "SNDCTL_DSP_GETFMTS"},
{SNDCTL_DSP_SETFMT, "SNDCTL_DSP_SETFMT"}, {SNDCTL_DSP_SETFMT, "SNDCTL_DSP_SETFMT"},
{SNDCTL_DSP_GETOSPACE, "SNDCTL_DSP_GETOSPACE"}, {SNDCTL_DSP_GETOSPACE, "SNDCTL_DSP_GETOSPACE"},
{SNDCTL_DSP_GETISPACE, "SNDCTL_DSP_GETISPACE"}, {SNDCTL_DSP_GETISPACE, "SNDCTL_DSP_GETISPACE"},
{SNDCTL_DSP_NONBLOCK, "SNDCTL_DSP_NONBLOCK"}, {SNDCTL_DSP_NONBLOCK, "SNDCTL_DSP_NONBLOCK"},
{SNDCTL_DSP_GETCAPS, "SNDCTL_DSP_GETCAPS"}, {SNDCTL_DSP_GETCAPS, "SNDCTL_DSP_GETCAPS"},
{SNDCTL_DSP_GETTRIGGER, "SNDCTL_DSP_GETTRIGGER"}, {SNDCTL_DSP_GETTRIGGER, "SNDCTL_DSP_GETTRIGGER"},
{SNDCTL_DSP_SETTRIGGER, "SNDCTL_DSP_SETTRIGGER"}, {SNDCTL_DSP_SETTRIGGER, "SNDCTL_DSP_SETTRIGGER"},
{SNDCTL_DSP_GETIPTR, "SNDCTL_DSP_GETIPTR"}, {SNDCTL_DSP_GETIPTR, "SNDCTL_DSP_GETIPTR"},
{SNDCTL_DSP_GETOPTR, "SNDCTL_DSP_GETOPTR"}, {SNDCTL_DSP_GETOPTR, "SNDCTL_DSP_GETOPTR"},
{SNDCTL_DSP_MAPINBUF, "SNDCTL_DSP_MAPINBUF"}, {SNDCTL_DSP_MAPINBUF, "SNDCTL_DSP_MAPINBUF"},
{SNDCTL_DSP_MAPOUTBUF, "SNDCTL_DSP_MAPOUTBUF"}, {SNDCTL_DSP_MAPOUTBUF, "SNDCTL_DSP_MAPOUTBUF"},
{SNDCTL_DSP_SETSYNCRO, "SNDCTL_DSP_SETSYNCRO"}, {SNDCTL_DSP_SETSYNCRO, "SNDCTL_DSP_SETSYNCRO"},
{SNDCTL_DSP_SETDUPLEX, "SNDCTL_DSP_SETDUPLEX"}, {SNDCTL_DSP_SETDUPLEX, "SNDCTL_DSP_SETDUPLEX"},
{SNDCTL_DSP_GETODELAY, "SNDCTL_DSP_GETODELAY"}, {SNDCTL_DSP_GETODELAY, "SNDCTL_DSP_GETODELAY"},
{SNDCTL_DSP_GETCHANNELMASK, "SNDCTL_DSP_GETCHANNELMASK"}, {SNDCTL_DSP_GETCHANNELMASK, "SNDCTL_DSP_GETCHANNELMASK"},
{SNDCTL_DSP_BIND_CHANNEL, "SNDCTL_DSP_BIND_CHANNEL"}, {SNDCTL_DSP_BIND_CHANNEL, "SNDCTL_DSP_BIND_CHANNEL"},
{OSS_GETVERSION, "OSS_GETVERSION"}, {OSS_GETVERSION, "OSS_GETVERSION"},
{SOUND_PCM_READ_RATE, "SOUND_PCM_READ_RATE"}, {SOUND_PCM_READ_RATE, "SOUND_PCM_READ_RATE"},
{SOUND_PCM_READ_CHANNELS, "SOUND_PCM_READ_CHANNELS"}, {SOUND_PCM_READ_CHANNELS, "SOUND_PCM_READ_CHANNELS"},
{SOUND_PCM_READ_BITS, "SOUND_PCM_READ_BITS"}, {SOUND_PCM_READ_BITS, "SOUND_PCM_READ_BITS"},
{SOUND_PCM_READ_FILTER, "SOUND_PCM_READ_FILTER"} {SOUND_PCM_READ_FILTER, "SOUND_PCM_READ_FILTER"}
}; };
#endif #endif
static int it8172_ioctl(struct inode *inode, struct file *file, static int it8172_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg) unsigned int cmd, unsigned long arg)
{ {
struct it8172_state *s = (struct it8172_state *)file->private_data; struct it8172_state *s = (struct it8172_state *)file->private_data;
unsigned long flags; unsigned long flags;
audio_buf_info abinfo; audio_buf_info abinfo;
count_info cinfo; count_info cinfo;
int count; int count;
int val, mapped, ret, diff; int val, mapped, ret, diff;
mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) || mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
((file->f_mode & FMODE_READ) && s->dma_adc.mapped); ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
#ifdef IT8172_VERBOSE_DEBUG #ifdef IT8172_VERBOSE_DEBUG
for (count=0; count<sizeof(ioctl_str)/sizeof(ioctl_str[0]); count++) { for (count=0; count<sizeof(ioctl_str)/sizeof(ioctl_str[0]); count++) {
if (ioctl_str[count].cmd == cmd) if (ioctl_str[count].cmd == cmd)
break; break;
} }
if (count < sizeof(ioctl_str)/sizeof(ioctl_str[0])) if (count < sizeof(ioctl_str)/sizeof(ioctl_str[0]))
printk(KERN_INFO PFX "ioctl %s\n", ioctl_str[count].str); dbg("ioctl %s, arg=0x%08x",
else ioctl_str[count].str, (unsigned int)arg);
printk(KERN_INFO PFX "ioctl unknown, 0x%x\n", cmd); else
dbg("ioctl unknown, 0x%x", cmd);
#endif #endif
switch (cmd) { switch (cmd) {
case OSS_GETVERSION: case OSS_GETVERSION:
return put_user(SOUND_VERSION, (int *)arg); return put_user(SOUND_VERSION, (int *)arg);
case SNDCTL_DSP_SYNC: case SNDCTL_DSP_SYNC:
if (file->f_mode & FMODE_WRITE) if (file->f_mode & FMODE_WRITE)
return drain_dac(s, file->f_flags & O_NONBLOCK); return drain_dac(s, file->f_flags & O_NONBLOCK);
return 0; return 0;
case SNDCTL_DSP_SETDUPLEX: case SNDCTL_DSP_SETDUPLEX:
return 0; return 0;
case SNDCTL_DSP_GETCAPS: case SNDCTL_DSP_GETCAPS:
return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME |
DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg); DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg);
case SNDCTL_DSP_RESET: case SNDCTL_DSP_RESET:
if (file->f_mode & FMODE_WRITE) { if (file->f_mode & FMODE_WRITE) {
stop_dac(s); stop_dac(s);
synchronize_irq(s->irq); synchronize_irq();
s->dma_dac.count = s->dma_dac.total_bytes = 0; s->dma_dac.count = s->dma_dac.total_bytes = 0;
s->dma_dac.nextIn = s->dma_dac.nextOut = s->dma_dac.rawbuf; 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 if (file->f_mode & FMODE_READ) {
s->capcc &= ~CC_SM; stop_adc(s);
outw(s->capcc, s->io+IT_AC_CAPCC); synchronize_irq();
if ((ret = prog_dmabuf_adc(s))) s->dma_adc.count = s->dma_adc.total_bytes = 0;
return ret; s->dma_adc.nextIn = s->dma_adc.nextOut =
} s->dma_adc.rawbuf;
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); return 0;
if ((ret = prog_dmabuf_dac(s)))
return ret; case SNDCTL_DSP_SPEED:
} if (get_user(val, (int *)arg))
} return -EFAULT;
return put_user(val, (int *)arg); 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 */ case SNDCTL_DSP_GETFMTS: /* Returns a mask */
return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg); return put_user(AFMT_S16_LE|AFMT_U8, (int *)arg);
case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
if (get_user(val, (int *)arg)) if (get_user(val, (int *)arg))
return -EFAULT; return -EFAULT;
if (val != AFMT_QUERY) { if (val != AFMT_QUERY) {
if (file->f_mode & FMODE_READ) { if (file->f_mode & FMODE_READ) {
stop_adc(s); stop_adc(s);
if (val == AFMT_S16_LE) if (val == AFMT_S16_LE)
s->capcc |= CC_DF; s->capcc |= CC_DF;
else { else {
val = AFMT_U8; val = AFMT_U8;
s->capcc &= ~CC_DF; s->capcc &= ~CC_DF;
} }
outw(s->capcc, s->io+IT_AC_CAPCC); outw(s->capcc, s->io+IT_AC_CAPCC);
if ((ret = prog_dmabuf_adc(s))) if ((ret = prog_dmabuf_adc(s)))
return ret; return ret;
} }
if (file->f_mode & FMODE_WRITE) { if (file->f_mode & FMODE_WRITE) {
stop_dac(s); stop_dac(s);
if (val == AFMT_S16_LE) if (val == AFMT_S16_LE)
s->pcc |= CC_DF; s->pcc |= CC_DF;
else { else {
val = AFMT_U8; val = AFMT_U8;
s->pcc &= ~CC_DF; 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;
} }
outw(s->pcc, s->io+IT_AC_PCC); return put_user(val, (int *)arg);
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: case SNDCTL_DSP_POST:
return 0; return 0;
case SNDCTL_DSP_GETTRIGGER: case SNDCTL_DSP_GETTRIGGER:
val = 0; val = 0;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
if (file->f_mode & FMODE_READ && !s->dma_adc.stopped) if (file->f_mode & FMODE_READ && !s->dma_adc.stopped)
val |= PCM_ENABLE_INPUT; val |= PCM_ENABLE_INPUT;
if (file->f_mode & FMODE_WRITE && !s->dma_dac.stopped) if (file->f_mode & FMODE_WRITE && !s->dma_dac.stopped)
val |= PCM_ENABLE_OUTPUT; val |= PCM_ENABLE_OUTPUT;
spin_unlock_irqrestore(&s->lock, flags); spin_unlock_irqrestore(&s->lock, flags);
return put_user(val, (int *)arg); return put_user(val, (int *)arg);
case SNDCTL_DSP_SETTRIGGER: case SNDCTL_DSP_SETTRIGGER:
if (get_user(val, (int *)arg)) if (get_user(val, (int *)arg))
return -EFAULT; return -EFAULT;
if (file->f_mode & FMODE_READ) { if (file->f_mode & FMODE_READ) {
if (val & PCM_ENABLE_INPUT) if (val & PCM_ENABLE_INPUT)
start_adc(s); start_adc(s);
else else
stop_adc(s); stop_adc(s);
} }
if (file->f_mode & FMODE_WRITE) { if (file->f_mode & FMODE_WRITE) {
if (val & PCM_ENABLE_OUTPUT) if (val & PCM_ENABLE_OUTPUT)
start_dac(s); start_dac(s);
else else
stop_dac(s); stop_dac(s);
} }
return 0; return 0;
case SNDCTL_DSP_GETOSPACE: case SNDCTL_DSP_GETOSPACE:
if (!(file->f_mode & FMODE_WRITE)) if (!(file->f_mode & FMODE_WRITE))
return -EINVAL; return -EINVAL;
abinfo.fragsize = s->dma_dac.fragsize; abinfo.fragsize = s->dma_dac.fragsize;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
count = s->dma_dac.count; count = s->dma_dac.count;
if (!s->dma_dac.stopped) if (!s->dma_dac.stopped)
count -= (s->dma_dac.fragsize - inw(s->io+IT_AC_PCDL)); count -= (s->dma_dac.fragsize -
spin_unlock_irqrestore(&s->lock, flags); inw(s->io+IT_AC_PCDL));
if (count < 0) spin_unlock_irqrestore(&s->lock, flags);
count = 0; if (count < 0)
abinfo.bytes = s->dma_dac.dmasize - count; count = 0;
abinfo.fragstotal = s->dma_dac.numfrag; abinfo.bytes = s->dma_dac.dmasize - count;
abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift; abinfo.fragstotal = s->dma_dac.numfrag;
return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0; abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ?
case SNDCTL_DSP_GETISPACE: -EFAULT : 0;
if (!(file->f_mode & FMODE_READ))
return -EINVAL; case SNDCTL_DSP_GETISPACE:
abinfo.fragsize = s->dma_adc.fragsize; if (!(file->f_mode & FMODE_READ))
spin_lock_irqsave(&s->lock, flags); return -EINVAL;
count = s->dma_adc.count; abinfo.fragsize = s->dma_adc.fragsize;
if (!s->dma_adc.stopped) spin_lock_irqsave(&s->lock, flags);
count += (s->dma_adc.fragsize - inw(s->io+IT_AC_CAPCDL)); count = s->dma_adc.count;
spin_unlock_irqrestore(&s->lock, flags); if (!s->dma_adc.stopped)
if (count < 0) count += (s->dma_adc.fragsize -
count = 0; inw(s->io+IT_AC_CAPCDL));
abinfo.bytes = count; spin_unlock_irqrestore(&s->lock, flags);
abinfo.fragstotal = s->dma_adc.numfrag; if (count < 0)
abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift; count = 0;
return copy_to_user((void *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 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: case SNDCTL_DSP_NONBLOCK:
file->f_flags |= O_NONBLOCK; file->f_flags |= O_NONBLOCK;
return 0; return 0;
case SNDCTL_DSP_GETODELAY: case SNDCTL_DSP_GETODELAY:
if (!(file->f_mode & FMODE_WRITE)) if (!(file->f_mode & FMODE_WRITE))
return -EINVAL; return -EINVAL;
spin_lock_irqsave(&s->lock, flags); spin_lock_irqsave(&s->lock, flags);
count = s->dma_dac.count; count = s->dma_dac.count;
if (!s->dma_dac.stopped) if (!s->dma_dac.stopped)
count -= (s->dma_dac.fragsize - inw(s->io+IT_AC_PCDL)); count -= (s->dma_dac.fragsize -
spin_unlock_irqrestore(&s->lock, flags); inw(s->io+IT_AC_PCDL));
if (count < 0) spin_unlock_irqrestore(&s->lock, flags);
count = 0; if (count < 0)
return put_user(count, (int *)arg); count = 0;
return put_user(count, (int *)arg);
case SNDCTL_DSP_GETIPTR:
if (!(file->f_mode & FMODE_READ)) case SNDCTL_DSP_GETIPTR:
return -EINVAL; if (!(file->f_mode & FMODE_READ))
spin_lock_irqsave(&s->lock, flags); return -EINVAL;
cinfo.bytes = s->dma_adc.total_bytes; spin_lock_irqsave(&s->lock, flags);
count = s->dma_adc.count; cinfo.bytes = s->dma_adc.total_bytes;
if (!s->dma_adc.stopped) { count = s->dma_adc.count;
diff = s->dma_adc.fragsize - inw(s->io+IT_AC_CAPCDL); if (!s->dma_adc.stopped) {
count += diff; diff = s->dma_adc.fragsize - inw(s->io+IT_AC_CAPCDL);
cinfo.bytes += diff; count += diff;
cinfo.ptr = inl(s->io+s->dma_adc.curBufPtr) - s->dma_adc.dmaaddr; cinfo.bytes += diff;
} else cinfo.ptr = inl(s->io+s->dma_adc.curBufPtr) -
cinfo.ptr = virt_to_bus(s->dma_adc.nextIn) - s->dma_adc.dmaaddr; s->dma_adc.dmaaddr;
if (s->dma_adc.mapped) } else
s->dma_adc.count &= s->dma_adc.fragsize-1; cinfo.ptr = virt_to_bus(s->dma_adc.nextIn) -
spin_unlock_irqrestore(&s->lock, flags); s->dma_adc.dmaaddr;
if (count < 0) if (s->dma_adc.mapped)
count = 0; s->dma_adc.count &= s->dma_adc.fragsize-1;
cinfo.blocks = count >> s->dma_adc.fragshift; spin_unlock_irqrestore(&s->lock, flags);
if (copy_to_user((void *)arg, &cinfo, sizeof(cinfo))) if (count < 0)
return -EFAULT; count = 0;
return 0; cinfo.blocks = count >> s->dma_adc.fragshift;
return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
case SNDCTL_DSP_GETOPTR:
if (!(file->f_mode & FMODE_READ)) case SNDCTL_DSP_GETOPTR:
return -EINVAL; if (!(file->f_mode & FMODE_READ))
spin_lock_irqsave(&s->lock, flags); return -EINVAL;
cinfo.bytes = s->dma_dac.total_bytes; spin_lock_irqsave(&s->lock, flags);
count = s->dma_dac.count; cinfo.bytes = s->dma_dac.total_bytes;
if (!s->dma_dac.stopped) { count = s->dma_dac.count;
diff = s->dma_dac.fragsize - inw(s->io+IT_AC_CAPCDL); if (!s->dma_dac.stopped) {
count -= diff; diff = s->dma_dac.fragsize - inw(s->io+IT_AC_CAPCDL);
cinfo.bytes += diff; count -= diff;
cinfo.ptr = inl(s->io+s->dma_dac.curBufPtr) - s->dma_dac.dmaaddr; cinfo.bytes += diff;
} else cinfo.ptr = inl(s->io+s->dma_dac.curBufPtr) -
cinfo.ptr = virt_to_bus(s->dma_dac.nextOut) - s->dma_dac.dmaaddr; s->dma_dac.dmaaddr;
if (s->dma_dac.mapped) } else
s->dma_dac.count &= s->dma_dac.fragsize-1; cinfo.ptr = virt_to_bus(s->dma_dac.nextOut) -
spin_unlock_irqrestore(&s->lock, flags); s->dma_dac.dmaaddr;
if (count < 0) if (s->dma_dac.mapped)
count = 0; s->dma_dac.count &= s->dma_dac.fragsize-1;
cinfo.blocks = count >> s->dma_dac.fragshift; spin_unlock_irqrestore(&s->lock, flags);
if (copy_to_user((void *)arg, &cinfo, sizeof(cinfo))) if (count < 0)
return -EFAULT; count = 0;
return 0; cinfo.blocks = count >> s->dma_dac.fragshift;
return copy_to_user((void *)arg, &cinfo, sizeof(cinfo));
case SNDCTL_DSP_GETBLKSIZE:
if (file->f_mode & FMODE_WRITE) case SNDCTL_DSP_GETBLKSIZE:
return put_user(s->dma_dac.fragsize, (int *)arg); if (file->f_mode & FMODE_WRITE)
else return put_user(s->dma_dac.fragsize, (int *)arg);
return put_user(s->dma_adc.fragsize, (int *)arg); else
return put_user(s->dma_adc.fragsize, (int *)arg);
case SNDCTL_DSP_SETFRAGMENT:
if (get_user(val, (int *)arg)) case SNDCTL_DSP_SETFRAGMENT:
return -EFAULT; if (get_user(val, (int *)arg))
if (file->f_mode & FMODE_READ) { return -EFAULT;
stop_adc(s); if (file->f_mode & FMODE_READ) {
s->dma_adc.ossfragshift = val & 0xffff; stop_adc(s);
s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff; s->dma_adc.ossfragshift = val & 0xffff;
if (s->dma_adc.ossfragshift < 4) s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
s->dma_adc.ossfragshift = 4; if (s->dma_adc.ossfragshift < 4)
if (s->dma_adc.ossfragshift > 15) s->dma_adc.ossfragshift = 4;
s->dma_adc.ossfragshift = 15; if (s->dma_adc.ossfragshift > 15)
if (s->dma_adc.ossmaxfrags < 4) s->dma_adc.ossfragshift = 15;
s->dma_adc.ossmaxfrags = 4; if (s->dma_adc.ossmaxfrags < 4)
if ((ret = prog_dmabuf_adc(s))) s->dma_adc.ossmaxfrags = 4;
return ret; if ((ret = prog_dmabuf_adc(s)))
} return ret;
if (file->f_mode & FMODE_WRITE) { }
stop_dac(s); if (file->f_mode & FMODE_WRITE) {
s->dma_dac.ossfragshift = val & 0xffff; stop_dac(s);
s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff; s->dma_dac.ossfragshift = val & 0xffff;
if (s->dma_dac.ossfragshift < 4) s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
s->dma_dac.ossfragshift = 4; if (s->dma_dac.ossfragshift < 4)
if (s->dma_dac.ossfragshift > 15) s->dma_dac.ossfragshift = 4;
s->dma_dac.ossfragshift = 15; if (s->dma_dac.ossfragshift > 15)
if (s->dma_dac.ossmaxfrags < 4) s->dma_dac.ossfragshift = 15;
s->dma_dac.ossmaxfrags = 4; if (s->dma_dac.ossmaxfrags < 4)
if ((ret = prog_dmabuf_dac(s))) s->dma_dac.ossmaxfrags = 4;
return ret; if ((ret = prog_dmabuf_dac(s)))
} return ret;
return 0; }
return 0;
case SNDCTL_DSP_SUBDIVIDE:
if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) || case SNDCTL_DSP_SUBDIVIDE:
(file->f_mode & FMODE_WRITE && s->dma_dac.subdivision)) if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
return -EINVAL; (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
if (get_user(val, (int *)arg)) return -EINVAL;
return -EFAULT; if (get_user(val, (int *)arg))
if (val != 1 && val != 2 && val != 4) return -EFAULT;
return -EINVAL; if (val != 1 && val != 2 && val != 4)
if (file->f_mode & FMODE_READ) { return -EINVAL;
stop_adc(s); if (file->f_mode & FMODE_READ) {
s->dma_adc.subdivision = val; stop_adc(s);
if ((ret = prog_dmabuf_adc(s))) s->dma_adc.subdivision = val;
return ret; if ((ret = prog_dmabuf_adc(s)))
} return ret;
if (file->f_mode & FMODE_WRITE) { }
stop_dac(s); if (file->f_mode & FMODE_WRITE) {
s->dma_dac.subdivision = val; stop_dac(s);
if ((ret = prog_dmabuf_dac(s))) s->dma_dac.subdivision = val;
return ret; if ((ret = prog_dmabuf_dac(s)))
} return ret;
return 0; }
return 0;
case SOUND_PCM_READ_RATE: case SOUND_PCM_READ_RATE:
return put_user((file->f_mode & FMODE_READ) ? return put_user((file->f_mode & FMODE_READ) ?
s->adcrate : s->dacrate, (int *)arg); s->adcrate : s->dacrate, (int *)arg);
case SOUND_PCM_READ_CHANNELS: case SOUND_PCM_READ_CHANNELS:
if (file->f_mode & FMODE_READ) if (file->f_mode & FMODE_READ)
return put_user((s->capcc & CC_SM) ? 2 : 1, (int *)arg); return put_user((s->capcc & CC_SM) ? 2 : 1,
else (int *)arg);
return put_user((s->pcc & CC_SM) ? 2 : 1, (int *)arg); else
return put_user((s->pcc & CC_SM) ? 2 : 1,
(int *)arg);
case SOUND_PCM_READ_BITS: case SOUND_PCM_READ_BITS:
if (file->f_mode & FMODE_READ) if (file->f_mode & FMODE_READ)
return put_user((s->capcc & CC_DF) ? 16 : 8, (int *)arg); return put_user((s->capcc & CC_DF) ? 16 : 8,
else (int *)arg);
return put_user((s->pcc & CC_DF) ? 16 : 8, (int *)arg); else
return put_user((s->pcc & CC_DF) ? 16 : 8,
(int *)arg);
case SOUND_PCM_WRITE_FILTER: case SOUND_PCM_WRITE_FILTER:
case SNDCTL_DSP_SETSYNCRO: case SNDCTL_DSP_SETSYNCRO:
case SOUND_PCM_READ_FILTER: case SOUND_PCM_READ_FILTER:
return -EINVAL; return -EINVAL;
} }
return mixdev_ioctl(&s->codec, cmd, arg); return mixdev_ioctl(s->codec, cmd, arg);
} }
static int it8172_open(struct inode *inode, struct file *file) static int it8172_open(struct inode *inode, struct file *file)
{ {
int minor = minor(inode->i_rdev); int minor = MINOR(inode->i_rdev);
DECLARE_WAITQUEUE(wait, current); DECLARE_WAITQUEUE(wait, current);
unsigned long flags; unsigned long flags;
struct list_head *list; struct list_head *list;
struct it8172_state *s; struct it8172_state *s;
int ret; int ret;
for (list = devs.next; ; list = list->next) { #ifdef IT8172_VERBOSE_DEBUG
if (list == &devs) if (file->f_flags & O_NONBLOCK)
return -ENODEV; dbg(__FUNCTION__ ": non-blocking");
s = list_entry(list, struct it8172_state, devs); else
if (!((s->dev_audio ^ minor) & ~0xf)) dbg(__FUNCTION__ ": blocking");
break; #endif
}
file->private_data = s; for (list = devs.next; ; list = list->next) {
/* wait for device to become free */ if (list == &devs)
down(&s->open_sem); return -ENODEV;
while (s->open_mode & file->f_mode) { s = list_entry(list, struct it8172_state, devs);
if (file->f_flags & O_NONBLOCK) { if (!((s->dev_audio ^ minor) & ~0xf))
up(&s->open_sem); break;
return -EBUSY;
} }
add_wait_queue(&s->open_wait, &wait); file->private_data = s;
__set_current_state(TASK_INTERRUPTIBLE); /* wait for device to become free */
up(&s->open_sem);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
down(&s->open_sem); down(&s->open_sem);
} while (s->open_mode & file->f_mode) {
if (file->f_flags & O_NONBLOCK) {
spin_lock_irqsave(&s->lock, flags); up(&s->open_sem);
return -EBUSY;
}
add_wait_queue(&s->open_wait, &wait);
__set_current_state(TASK_INTERRUPTIBLE);
up(&s->open_sem);
schedule();
remove_wait_queue(&s->open_wait, &wait);
set_current_state(TASK_RUNNING);
if (signal_pending(current))
return -ERESTARTSYS;
down(&s->open_sem);
}
if (file->f_mode & FMODE_READ) { spin_lock_irqsave(&s->lock, flags);
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)))
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)))
return ret;
}
spin_unlock_irqrestore(&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); s->open_mode |= (file->f_mode & (FMODE_READ | FMODE_WRITE));
up(&s->open_sem); up(&s->open_sem);
return 0; return 0;
} }
static int it8172_release(struct inode *inode, struct file *file) static int it8172_release(struct inode *inode, struct file *file)
{ {
struct it8172_state *s = (struct it8172_state *)file->private_data; struct it8172_state *s = (struct it8172_state *)file->private_data;
lock_kernel(); #ifdef IT8172_VERBOSE_DEBUG
if (file->f_mode & FMODE_WRITE) dbg(__FUNCTION__);
drain_dac(s, file->f_flags & O_NONBLOCK); #endif
down(&s->open_sem); lock_kernel();
if (file->f_mode & FMODE_WRITE) { if (file->f_mode & FMODE_WRITE)
stop_dac(s); drain_dac(s, file->f_flags & O_NONBLOCK);
dealloc_dmabuf(s, &s->dma_dac); down(&s->open_sem);
} if (file->f_mode & FMODE_WRITE) {
if (file->f_mode & FMODE_READ) { stop_dac(s);
stop_adc(s); dealloc_dmabuf(s, &s->dma_dac);
dealloc_dmabuf(s, &s->dma_adc); }
} if (file->f_mode & FMODE_READ) {
s->open_mode &= (~file->f_mode) & (FMODE_READ|FMODE_WRITE); stop_adc(s);
up(&s->open_sem); dealloc_dmabuf(s, &s->dma_adc);
wake_up(&s->open_wait); }
unlock_kernel(); s->open_mode &= ((~file->f_mode) & (FMODE_READ|FMODE_WRITE));
return 0; up(&s->open_sem);
wake_up(&s->open_wait);
unlock_kernel();
return 0;
} }
static /*const*/ struct file_operations it8172_audio_fops = { static /*const*/ struct file_operations it8172_audio_fops = {
.owner = THIS_MODULE, owner: THIS_MODULE,
.llseek = no_llseek, llseek: it8172_llseek,
.read = it8172_read, read: it8172_read,
.write = it8172_write, write: it8172_write,
.poll = it8172_poll, poll: it8172_poll,
.ioctl = it8172_ioctl, ioctl: it8172_ioctl,
.mmap = it8172_mmap, mmap: it8172_mmap,
.open = it8172_open, open: it8172_open,
.release = it8172_release, release: it8172_release,
}; };
...@@ -1657,51 +1898,51 @@ static /*const*/ struct file_operations it8172_audio_fops = { ...@@ -1657,51 +1898,51 @@ static /*const*/ struct file_operations it8172_audio_fops = {
static int proc_it8172_dump (char *buf, char **start, off_t fpos, static int proc_it8172_dump (char *buf, char **start, off_t fpos,
int length, int *eof, void *data) int length, int *eof, void *data)
{ {
struct it8172_state *s; struct it8172_state *s;
int cnt, len = 0; int cnt, len = 0;
if (list_empty(&devs)) if (list_empty(&devs))
return 0; return 0;
s = list_entry(devs.next, struct it8172_state, devs); s = list_entry(devs.next, struct it8172_state, devs);
/* print out header */ /* print out header */
len += sprintf(buf + len, "\n\t\tIT8172 Audio Debug\n\n"); len += sprintf(buf + len, "\n\t\tIT8172 Audio Debug\n\n");
// print out digital controller state // print out digital controller state
len += sprintf (buf + len, "IT8172 Audio Controller registers\n"); len += sprintf (buf + len, "IT8172 Audio Controller registers\n");
len += sprintf (buf + len, "---------------------------------\n"); len += sprintf (buf + len, "---------------------------------\n");
cnt=0; cnt=0;
while (cnt < 0x72) { while (cnt < 0x72) {
if (cnt == IT_AC_PCB1STA || cnt == IT_AC_PCB2STA || if (cnt == IT_AC_PCB1STA || cnt == IT_AC_PCB2STA ||
cnt == IT_AC_CAPB1STA || cnt == IT_AC_CAPB2STA || cnt == IT_AC_CAPB1STA || cnt == IT_AC_CAPB2STA ||
cnt == IT_AC_PFDP) { cnt == IT_AC_PFDP) {
len+= sprintf (buf + len, "reg %02x = %08x\n", len+= sprintf (buf + len, "reg %02x = %08x\n",
cnt, inl(s->io+cnt)); cnt, inl(s->io+cnt));
cnt += 4; cnt += 4;
} else { } else {
len+= sprintf (buf + len, "reg %02x = %04x\n", len+= sprintf (buf + len, "reg %02x = %04x\n",
cnt, inw(s->io+cnt)); cnt, inw(s->io+cnt));
cnt += 2; cnt += 2;
}
} }
}
/* print out CODEC state */ /* print out CODEC state */
len += sprintf (buf + len, "\nAC97 CODEC registers\n"); len += sprintf (buf + len, "\nAC97 CODEC registers\n");
len += sprintf (buf + len, "----------------------\n"); len += sprintf (buf + len, "----------------------\n");
for (cnt=0; cnt <= 0x7e; cnt = cnt +2) for (cnt=0; cnt <= 0x7e; cnt = cnt +2)
len+= sprintf (buf + len, "reg %02x = %04x\n", len+= sprintf (buf + len, "reg %02x = %04x\n",
cnt, rdcodec(&s->codec, cnt)); cnt, rdcodec(s->codec, cnt));
if (fpos >=len){ if (fpos >=len){
*start = buf; *start = buf;
*eof =1;
return 0;
}
*start = buf + fpos;
if ((len -= fpos) > length)
return length;
*eof =1; *eof =1;
return 0; return len;
}
*start = buf + fpos;
if ((len -= fpos) > length)
return length;
*eof =1;
return len;
} }
#endif /* IT8172_DEBUG */ #endif /* IT8172_DEBUG */
...@@ -1712,244 +1953,307 @@ static int proc_it8172_dump (char *buf, char **start, off_t fpos, ...@@ -1712,244 +1953,307 @@ static int proc_it8172_dump (char *buf, char **start, off_t fpos,
#define NR_DEVICE 5 #define NR_DEVICE 5
static int spdif[NR_DEVICE] = { 0, }; static int spdif[NR_DEVICE] = { 0, };
static int i2s_fmt[NR_DEVICE] = { 0, };
static unsigned int devindex = 0; static unsigned int devindex = 0;
MODULE_PARM(spdif, "1-" __MODULE_STRING(NR_DEVICE) "i"); MODULE_PARM(spdif, "1-" __MODULE_STRING(NR_DEVICE) "i");
MODULE_PARM_DESC(spdif, "if 1 the S/PDIF digital output is enabled"); MODULE_PARM_DESC(spdif, "if 1 the S/PDIF digital output is enabled");
MODULE_PARM(i2s_fmt, "1-" __MODULE_STRING(NR_DEVICE) "i");
MODULE_PARM_DESC(i2s_fmt, "the format of I2S");
MODULE_AUTHOR("Monta Vista Software, stevel@mvista.com"); MODULE_AUTHOR("Monta Vista Software, stevel@mvista.com");
MODULE_DESCRIPTION("IT8172 AudioPCI97 Driver"); MODULE_DESCRIPTION("IT8172 Audio Driver");
MODULE_LICENSE("GPL");
/* --------------------------------------------------------------------- */ /* --------------------------------------------------------------------- */
static int __devinit it8172_probe(struct pci_dev *pcidev, static int __devinit it8172_probe(struct pci_dev *pcidev,
const struct pci_device_id *pciid) const struct pci_device_id *pciid)
{ {
struct it8172_state *s; struct it8172_state *s;
int i, val; int i, val;
unsigned short pcisr, vol; unsigned short pcisr, vol;
unsigned char legacy, imc; unsigned char legacy, imc;
char proc_str[80]; char proc_str[80];
if (pcidev->irq == 0) if (pcidev->irq == 0)
return -1; return -1;
if (!(s = kmalloc(sizeof(struct it8172_state), GFP_KERNEL))) { if (!(s = kmalloc(sizeof(struct it8172_state), GFP_KERNEL))) {
printk(KERN_ERR PFX "alloc of device struct failed\n"); err("alloc of device struct failed");
return -1; 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);
init_MUTEX(&s->open_sem);
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);
memset(s, 0, sizeof(struct it8172_state)); s->codec = ac97_alloc_codec();
init_waitqueue_head(&s->dma_adc.wait); if(s->codec == NULL)
init_waitqueue_head(&s->dma_dac.wait); goto err_codec;
init_waitqueue_head(&s->open_wait);
init_MUTEX(&s->open_sem); s->codec->private_data = s;
spin_lock_init(&s->lock); s->codec->id = 0;
s->dev = pcidev; s->codec->codec_read = rdcodec;
s->io = pci_resource_start(pcidev, 0); s->codec->codec_write = wrcodec;
s->irq = pcidev->irq; s->codec->codec_wait = waitcodec;
s->vendor = pcidev->vendor;
s->device = pcidev->device; if (!request_region(s->io, pci_resource_len(pcidev,0),
pci_read_config_byte(pcidev, PCI_REVISION_ID, &s->rev); IT8172_MODULE_NAME)) {
s->codec.private_data = s; err("io ports %#lx->%#lx in use",
s->codec.id = 0; s->io, s->io + pci_resource_len(pcidev,0)-1);
s->codec.codec_read = rdcodec; goto err_region;
s->codec.codec_write = wrcodec; }
s->codec.codec_wait = waitcodec; if (request_irq(s->irq, it8172_interrupt, SA_INTERRUPT,
IT8172_MODULE_NAME, s)) {
if (!request_region(s->io, pci_resource_len(pcidev,0), err("irq %u in use", s->irq);
IT8172_MODULE_NAME)) { goto err_irq;
printk(KERN_ERR PFX "io ports %#lx->%#lx in use\n", }
s->io, s->io + pci_resource_len(pcidev,0)-1);
goto err_region; info("IO at %#lx, IRQ %d", s->io, s->irq);
}
if (request_irq(s->irq, it8172_interrupt, SA_INTERRUPT, /* register devices */
IT8172_MODULE_NAME, s)) { if ((s->dev_audio = register_sound_dsp(&it8172_audio_fops, -1)) < 0)
printk(KERN_ERR PFX "irq %u in use\n", s->irq); goto err_dev1;
goto err_irq; if ((s->codec->dev_mixer =
} register_sound_mixer(&it8172_mixer_fops, -1)) < 0)
goto err_dev2;
printk(KERN_INFO PFX "IO at %#lx, IRQ %d\n", 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 #ifdef IT8172_DEBUG
/* initialize the debug proc device */ /* intialize the debug proc device */
s->ps = create_proc_read_entry(IT8172_MODULE_NAME, 0, NULL, s->ps = create_proc_read_entry(IT8172_MODULE_NAME, 0, NULL,
proc_it8172_dump, NULL); proc_it8172_dump, NULL);
#endif /* IT8172_DEBUG */ #endif /* IT8172_DEBUG */
/* /*
* Reset the Audio device using the IT8172 PCI Reset register. This * Reset the Audio device using the IT8172 PCI Reset register. This
* creates an audible double click on a speaker connected to Line-out. * 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); IT_IO_READ16(IT_PM_PCISR, pcisr);
} pcisr |= IT_PM_PCISR_ACSR;
if (i == 10) { IT_IO_WRITE16(IT_PM_PCISR, pcisr);
printk(KERN_ERR PFX "chip reset timeout!\n"); /* wait up to 100msec for reset to complete */
goto err_dev3; 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 */ /* enable pci io and bus mastering */
if (pci_enable_device(pcidev)) if (pci_enable_device(pcidev))
goto err_dev3; goto err_dev3;
pci_set_master(pcidev); pci_set_master(pcidev);
/* get out of legacy mode */ /* get out of legacy mode */
pci_read_config_byte (pcidev, 0x40, &legacy); pci_read_config_byte (pcidev, 0x40, &legacy);
pci_write_config_byte (pcidev, 0x40, legacy & ~1); pci_write_config_byte (pcidev, 0x40, legacy & ~1);
s->spdif_volume = -1; s->spdif_volume = -1;
/* check to see if s/pdif mode is being requested */ /* check to see if s/pdif mode is being requested */
if (spdif[devindex]) { if (spdif[devindex]) {
printk(KERN_INFO PFX "enabling S/PDIF output\n"); info("enabling S/PDIF output");
s->spdif_volume = 0; s->spdif_volume = 0;
outb(GC_SOE, s->io+IT_AC_GC); outb(GC_SOE, s->io+IT_AC_GC);
} else { } else {
printk(KERN_INFO PFX "disabling S/PDIF output\n"); info("disabling S/PDIF output");
outb(0, s->io+IT_AC_GC); outb(0, s->io+IT_AC_GC);
} }
/* cold reset the AC97 */ /* check to see if I2S format requested */
outw(CODECC_CR, s->io+IT_AC_CODECC); if (i2s_fmt[devindex]) {
udelay(1000); info("setting I2S format to 0x%02x", i2s_fmt[devindex]);
outw(0, s->io+IT_AC_CODECC); outb(i2s_fmt[devindex], s->io+IT_AC_I2SMC);
/* need to delay around 500msec(bleech) to give } else {
some CODECs enough time to wakeup */ outb(I2SMC_I2SF_I2S, s->io+IT_AC_I2SMC);
it8172_delay(500); }
/* 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 */ /* AC97 warm reset to start the bitclk */
outw(CODECC_WR, s->io+IT_AC_CODECC); outw(CODECC_WR, s->io+IT_AC_CODECC);
udelay(1000); udelay(1000);
outw(0, s->io+IT_AC_CODECC); outw(0, s->io+IT_AC_CODECC);
/* codec init */ /* codec init */
if (!ac97_probe_codec(&s->codec)) if (!ac97_probe_codec(s->codec))
goto err_dev3; goto err_dev3;
/* Enable Volume button interrupts */ /* add I2S as allowable recording source */
imc = inb(s->io+IT_AC_IMC); s->codec->record_sources |= SOUND_MASK_I2S;
outb(imc & ~IMC_VCIM, s->io+IT_AC_IMC);
/* Enable Volume button interrupts */
/* Un-mute PCM and FM out on the controller */ imc = inb(s->io+IT_AC_IMC);
vol = inw(s->io+IT_AC_PCMOV); outb(imc & ~IMC_VCIM, s->io+IT_AC_IMC);
outw(vol & ~PCMOV_PCMOM, s->io+IT_AC_PCMOV);
vol = inw(s->io+IT_AC_FMOV); /* Un-mute PCM and FM out on the controller */
outw(vol & ~FMOV_FMOM, s->io+IT_AC_FMOV); vol = inw(s->io+IT_AC_PCMOV);
outw(vol & ~PCMOV_PCMOM, s->io+IT_AC_PCMOV);
/* set channel defaults to 8-bit, mono, 8 Khz */ vol = inw(s->io+IT_AC_FMOV);
s->pcc = 0; outw(vol & ~FMOV_FMOM, s->io+IT_AC_FMOV);
s->capcc = 0;
set_dac_rate(s, 8000); /* set channel defaults to 8-bit, mono, 8 Khz */
set_adc_rate(s, 8000); s->pcc = 0;
s->capcc = 0;
/* set mic to be the recording source */ set_dac_rate(s, 8000);
val = SOUND_MASK_MIC; set_adc_rate(s, 8000);
mixdev_ioctl(&s->codec, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
/* set mic to be the recording source */
/* mute master and PCM when in S/PDIF mode */ val = SOUND_MASK_MIC;
if (s->spdif_volume != -1) { mixdev_ioctl(s->codec, SOUND_MIXER_WRITE_RECSRC,
val = 0x0000;
mixdev_ioctl(&s->codec, SOUND_MIXER_WRITE_VOLUME,
(unsigned long)&val);
mixdev_ioctl(&s->codec, SOUND_MIXER_WRITE_PCM,
(unsigned long)&val); (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 #ifdef IT8172_DEBUG
sprintf(proc_str, "driver/%s/%d/ac97", IT8172_MODULE_NAME, s->codec.id); sprintf(proc_str, "driver/%s/%d/ac97", IT8172_MODULE_NAME,
s->ac97_ps = create_proc_read_entry (proc_str, 0, NULL, s->codec->id);
ac97_read_proc, &s->codec); s->ac97_ps = create_proc_read_entry (proc_str, 0, NULL,
ac97_read_proc, s->codec);
#endif #endif
/* store it in the driver field */ /* store it in the driver field */
pci_set_drvdata(pcidev, s); pci_set_drvdata(pcidev, s);
pcidev->dma_mask = 0xffffffff; pcidev->dma_mask = 0xffffffff;
/* put it into driver list */ /* put it into driver list */
list_add_tail(&s->devs, &devs); list_add_tail(&s->devs, &devs);
/* increment devindex */ /* increment devindex */
if (devindex < NR_DEVICE-1) if (devindex < NR_DEVICE-1)
devindex++; devindex++;
return 0; return 0;
err_dev3: err_dev3:
unregister_sound_mixer(s->codec.dev_mixer); unregister_sound_mixer(s->codec->dev_mixer);
err_dev2: err_dev2:
unregister_sound_dsp(s->dev_audio); unregister_sound_dsp(s->dev_audio);
err_dev1: err_dev1:
printk(KERN_ERR PFX "cannot register misc device\n"); err("cannot register misc device");
free_irq(s->irq, s); free_irq(s->irq, s);
err_irq: err_irq:
release_region(s->io, pci_resource_len(pcidev,0)); release_region(s->io, pci_resource_len(pcidev,0));
err_region: err_region:
kfree(s); ac97_release_codec(s->codec);
return -1; err_codec:
kfree(s);
return -1;
} }
static void __devinit it8172_remove(struct pci_dev *dev) static void __devinit it8172_remove(struct pci_dev *dev)
{ {
struct it8172_state *s = pci_get_drvdata(dev); struct it8172_state *s = pci_get_drvdata(dev);
if (!s) if (!s)
return; return;
list_del(&s->devs); list_del(&s->devs);
#ifdef IT8172_DEBUG #ifdef IT8172_DEBUG
if (s->ps) if (s->ps)
remove_proc_entry(IT8172_MODULE_NAME, NULL); remove_proc_entry(IT8172_MODULE_NAME, NULL);
#endif /* IT8172_DEBUG */ #endif /* IT8172_DEBUG */
synchronize_irq(s->irq); synchronize_irq();
free_irq(s->irq, s); free_irq(s->irq, s);
release_region(s->io, pci_resource_len(dev,0)); release_region(s->io, pci_resource_len(dev,0));
unregister_sound_dsp(s->dev_audio); unregister_sound_dsp(s->dev_audio);
unregister_sound_mixer(s->codec.dev_mixer); unregister_sound_mixer(s->codec->dev_mixer);
kfree(s); ac97_codec_release(s->codec);
pci_set_drvdata(dev, NULL); kfree(s);
pci_set_drvdata(dev, NULL);
} }
static struct pci_device_id id_table[] __devinitdata = { static struct pci_device_id id_table[] __devinitdata = {
{ PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G_AUDIO, PCI_ANY_ID, { PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G_AUDIO, PCI_ANY_ID,
PCI_ANY_ID, 0, 0 }, PCI_ANY_ID, 0, 0 },
{ 0, } { 0, }
}; };
MODULE_DEVICE_TABLE(pci, id_table); MODULE_DEVICE_TABLE(pci, id_table);
static struct pci_driver it8172_driver = { static struct pci_driver it8172_driver = {
.name = IT8172_MODULE_NAME, name: IT8172_MODULE_NAME,
.id_table = id_table, id_table: id_table,
.probe = it8172_probe, probe: it8172_probe,
.remove = it8172_remove, remove: it8172_remove
}; };
static int __init init_it8172(void) static int __init init_it8172(void)
{ {
printk("version v0.26 time " __TIME__ " " __DATE__ "\n"); if (!pci_present()) /* No PCI bus in this machine! */
return pci_module_init(&it8172_driver); return -ENODEV;
info("version v0.5 time " __TIME__ " " __DATE__);
return pci_module_init(&it8172_driver);
} }
static void __exit cleanup_it8172(void) static void __exit cleanup_it8172(void)
{ {
printk(KERN_INFO PFX "unloading\n"); info("unloading");
pci_unregister_driver(&it8172_driver); pci_unregister_driver(&it8172_driver);
} }
module_init(init_it8172); module_init(init_it8172);
module_exit(cleanup_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;
for(this_opt=strtok(options, ",");
this_opt; this_opt=strtok(NULL, ",")) {
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 */
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