Gitiles Standalone
repos / linux-3.10 / refs/heads/master / . / sound / pci / ali5451 / ali5451.c
blob: 984d5d4ba4e15eb905bd3df47c5e5f3a6cdd1eea [file] [log] [blame]
/*
* Matt Wu <Matt_Wu@acersoftech.com.cn>
* Apr 26, 2001
* Routines for control of ALi pci audio M5451
*
* BUGS:
* --
*
* TODO:
* --
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public Lcodecnse as published by
* the Free Software Foundation; either version 2 of the Lcodecnse, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public Lcodecnse for more details.
*
* You should have received a copy of the GNU General Public Lcodecnse
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <sound/driver.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/info.h>
#include <sound/ac97_codec.h>
#include <sound/mpu401.h>
#include <sound/initval.h>
MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
MODULE_DESCRIPTION("ALI M5451");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 32};
static int spdif[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable ALI 5451 PCI Audio.");
module_param_array(pcm_channels, int, NULL, 0444);
MODULE_PARM_DESC(pcm_channels, "PCM Channels");
module_param_array(spdif, bool, NULL, 0444);
MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
/*
* Debug part definitions
*/
//#define ALI_DEBUG
#ifdef ALI_DEBUG
#define snd_ali_printk(format, args...) printk(format, ##args);
#else
#define snd_ali_printk(format, args...)
#endif
/*
* Constants definition
*/
#ifndef PCI_VENDOR_ID_ALI
#define PCI_VENDOR_ID_ALI 0x10b9
#endif
#ifndef PCI_DEVICE_ID_ALI_5451
#define PCI_DEVICE_ID_ALI_5451 0x5451
#endif
#define DEVICE_ID_ALI5451 ((PCI_VENDOR_ID_ALI<<16)|PCI_DEVICE_ID_ALI_5451)
#define ALI_CHANNELS 32
#define ALI_PCM_IN_CHANNEL 31
#define ALI_SPDIF_IN_CHANNEL 19
#define ALI_SPDIF_OUT_CHANNEL 15
#define ALI_CENTER_CHANNEL 24
#define ALI_LEF_CHANNEL 23
#define ALI_SURR_LEFT_CHANNEL 26
#define ALI_SURR_RIGHT_CHANNEL 25
#define SNDRV_ALI_VOICE_TYPE_PCM 01
#define SNDRV_ALI_VOICE_TYPE_OTH 02
#define ALI_5451_V02 0x02
/*
* Direct Registers
*/
#define ALI_LEGACY_DMAR0 0x00 // ADR0
#define ALI_LEGACY_DMAR4 0x04 // CNT0
#define ALI_LEGACY_DMAR11 0x0b // MOD
#define ALI_LEGACY_DMAR15 0x0f // MMR
#define ALI_MPUR0 0x20
#define ALI_MPUR1 0x21
#define ALI_MPUR2 0x22
#define ALI_MPUR3 0x23
#define ALI_AC97_WRITE 0x40
#define ALI_AC97_READ 0x44
#define ALI_SCTRL 0x48
#define ALI_SPDIF_OUT_ENABLE 0x20
#define ALI_AC97_GPIO 0x4c
#define ALI_SPDIF_CS 0x70
#define ALI_SPDIF_CTRL 0x74
#define ALI_SPDIF_IN_FUNC_ENABLE 0x02
#define ALI_SPDIF_IN_CH_STATUS 0x40
#define ALI_SPDIF_OUT_CH_STATUS 0xbf
#define ALI_START 0x80
#define ALI_STOP 0x84
#define ALI_CSPF 0x90
#define ALI_AINT 0x98
#define ALI_GC_CIR 0xa0
#define ENDLP_IE 0x00001000
#define MIDLP_IE 0x00002000
#define ALI_AINTEN 0xa4
#define ALI_VOLUME 0xa8
#define ALI_SBDELTA_DELTA_R 0xac
#define ALI_MISCINT 0xb0
#define ADDRESS_IRQ 0x00000020
#define TARGET_REACHED 0x00008000
#define MIXER_OVERFLOW 0x00000800
#define MIXER_UNDERFLOW 0x00000400
#define ALI_SBBL_SBCL 0xc0
#define ALI_SBCTRL_SBE2R_SBDD 0xc4
#define ALI_STIMER 0xc8
#define ALI_GLOBAL_CONTROL 0xd4
#define ALI_SPDIF_OUT_SEL_PCM 0x00000400 /* bit 10 */
#define ALI_SPDIF_IN_SUPPORT 0x00000800 /* bit 11 */
#define ALI_SPDIF_OUT_CH_ENABLE 0x00008000 /* bit 15 */
#define ALI_SPDIF_IN_CH_ENABLE 0x00080000 /* bit 19 */
#define ALI_PCM_IN_ENABLE 0x80000000 /* bit 31 */
#define ALI_CSO_ALPHA_FMS 0xe0
#define ALI_LBA 0xe4
#define ALI_ESO_DELTA 0xe8
#define ALI_GVSEL_PAN_VOC_CTRL_EC 0xf0
#define ALI_EBUF1 0xf4
#define ALI_EBUF2 0xf8
#define ALI_REG(codec, x) ((codec)->port + x)
typedef struct snd_stru_ali ali_t;
typedef struct snd_ali_stru_voice snd_ali_voice_t;
typedef struct snd_ali_channel_control {
// register data
struct REGDATA {
unsigned int start;
unsigned int stop;
unsigned int aint;
unsigned int ainten;
} data;
// register addresses
struct REGS {
unsigned int start;
unsigned int stop;
unsigned int aint;
unsigned int ainten;
unsigned int ac97read;
unsigned int ac97write;
} regs;
} snd_ali_channel_control_t;
struct snd_ali_stru_voice {
unsigned int number;
unsigned int use: 1,
pcm: 1,
midi: 1,
mode: 1,
synth: 1;
/* PCM data */
ali_t *codec;
snd_pcm_substream_t *substream;
snd_ali_voice_t *extra;
unsigned int running: 1;
int eso; /* final ESO value for channel */
int count; /* runtime->period_size */
/* --- */
void *private_data;
void (*private_free)(void *private_data);
};
typedef struct snd_stru_alidev {
snd_ali_voice_t voices[ALI_CHANNELS];
unsigned int chcnt; /* num of opened channels */
unsigned int chmap; /* bitmap for opened channels */
unsigned int synthcount;
} alidev_t;
#ifdef CONFIG_PM
#define ALI_GLOBAL_REGS 56
#define ALI_CHANNEL_REGS 8
typedef struct snd_ali_image {
unsigned long regs[ALI_GLOBAL_REGS];
unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
} ali_image_t;
#endif
struct snd_stru_ali {
unsigned long irq;
unsigned long port;
unsigned char revision;
unsigned int hw_initialized: 1;
unsigned int spdif_support: 1;
struct pci_dev *pci;
struct pci_dev *pci_m1533;
struct pci_dev *pci_m7101;
snd_card_t *card;
snd_pcm_t *pcm;
alidev_t synth;
snd_ali_channel_control_t chregs;
/* S/PDIF Mask */
unsigned int spdif_mask;
unsigned int spurious_irq_count;
unsigned int spurious_irq_max_delta;
ac97_bus_t *ac97_bus;
ac97_t *ac97;
unsigned short ac97_ext_id;
unsigned short ac97_ext_status;
spinlock_t reg_lock;
spinlock_t voice_alloc;
#ifdef CONFIG_PM
ali_image_t *image;
#endif
};
static struct pci_device_id snd_ali_ids[] = {
{0x10b9, 0x5451, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
{0, }
};
MODULE_DEVICE_TABLE(pci, snd_ali_ids);
static void snd_ali_clear_voices(ali_t *, unsigned int, unsigned int);
static unsigned short snd_ali_codec_peek(ali_t *, int, unsigned short);
static void snd_ali_codec_poke(ali_t *, int, unsigned short, unsigned short);
/*
* Debug Part
*/
#ifdef ALI_DEBUG
static void ali_read_regs(ali_t *codec, int channel)
{
int i,j;
unsigned int dwVal;
printk("channel %d registers map:\n", channel);
outb((unsigned char)(channel & 0x001f), ALI_REG(codec,ALI_GC_CIR));
printk(" ");
for(j=0;j<8;j++)
printk("%2.2x ", j*4);
printk("\n");
for (i=0; i<=0xf8/4;i++) {
if(i%8 == 0)
printk("%2.2x ", (i*4/0x10)*0x10);
dwVal = inl(ALI_REG(codec,i*4));
printk("%8.8x ", dwVal);
if ((i+1)%8 == 0)
printk("\n");
}
printk("\n");
}
static void ali_read_cfg(unsigned int vendor, unsigned deviceid)
{
unsigned int dwVal;
struct pci_dev *pci_dev = NULL;
int i,j;
pci_dev = pci_find_device(vendor, deviceid, pci_dev);
if (pci_dev == NULL)
return ;
printk("\nM%x PCI CFG\n", deviceid);
printk(" ");
for(j=0;j<8;j++)
printk("%d ",j);
printk("\n");
for(i=0;i<8;i++) {
printk("%d ",i);
for(j=0;j<8;j++)
{
pci_read_config_dword(pci_dev, i*0x20+j*4, &dwVal);
printk("%8.8x ", dwVal);
}
printk("\n");
}
}
static void ali_read_ac97regs(ali_t *codec, int secondary)
{
unsigned short i,j;
unsigned short wVal;
printk("\ncodec %d registers map:\n", secondary);
printk(" ");
for(j=0;j<8;j++)
printk("%2.2x ",j*2);
printk("\n");
for (i=0; i<64;i++) {
if(i%8 == 0)
printk("%2.2x ", (i/8)*0x10);
wVal = snd_ali_codec_peek(codec, secondary, i*2);
printk("%4.4x ", wVal);
if ((i+1)%8 == 0)
printk("\n");
}
printk("\n");
}
#endif
/*
* AC97 ACCESS
*/
static inline unsigned int snd_ali_5451_peek(ali_t *codec,
unsigned int port )
{
return (unsigned int)inl(ALI_REG(codec, port));
}
static inline void snd_ali_5451_poke( ali_t *codec,
unsigned int port,
unsigned int val )
{
outl((unsigned int)val, ALI_REG(codec, port));
}
static int snd_ali_codec_ready( ali_t *codec,
unsigned int port,
int sched )
{
unsigned long end_time;
unsigned int res;
end_time = jiffies + 10 * (HZ >> 2);
do {
res = snd_ali_5451_peek(codec,port);
if (! (res & 0x8000))
return 0;
if (sched) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
}
} while (time_after_eq(end_time, jiffies));
snd_ali_5451_poke(codec, port, res & ~0x8000);
snd_printdd("ali_codec_ready: codec is not ready.\n ");
return -EIO;
}
static int snd_ali_stimer_ready(ali_t *codec, int sched)
{
unsigned long end_time;
unsigned long dwChk1,dwChk2;
dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
end_time = jiffies + 10 * (HZ >> 2);
do {
dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
if (dwChk2 != dwChk1)
return 0;
if (sched) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
}
} while (time_after_eq(end_time, jiffies));
snd_printk("ali_stimer_read: stimer is not ready.\n");
return -EIO;
}
static void snd_ali_codec_poke(ali_t *codec,int secondary,
unsigned short reg,
unsigned short val)
{
unsigned int dwVal = 0;
unsigned int port = 0;
if (reg >= 0x80) {
snd_printk("ali_codec_poke: reg(%xh) invalid.\n", reg);
return;
}
port = codec->chregs.regs.ac97write;
if (snd_ali_codec_ready(codec, port, 0) < 0)
return;
if (snd_ali_stimer_ready(codec, 0) < 0)
return;
dwVal = (unsigned int) (reg & 0xff);
dwVal |= 0x8000 | (val << 16);
if (secondary) dwVal |= 0x0080;
if (codec->revision == ALI_5451_V02) dwVal |= 0x0100;
snd_ali_5451_poke(codec,port,dwVal);
return ;
}
static unsigned short snd_ali_codec_peek( ali_t *codec,
int secondary,
unsigned short reg)
{
unsigned int dwVal = 0;
unsigned int port = 0;
if (reg >= 0x80) {
snd_printk("ali_codec_peek: reg(%xh) invalid.\n", reg);
return ~0;
}
port = codec->chregs.regs.ac97read;
if (snd_ali_codec_ready(codec, port, 0) < 0)
return ~0;
if (snd_ali_stimer_ready(codec, 0) < 0)
return ~0;
dwVal = (unsigned int) (reg & 0xff);
dwVal |= 0x8000; /* bit 15*/
if (secondary) dwVal |= 0x0080;
snd_ali_5451_poke(codec, port, dwVal);
if (snd_ali_stimer_ready(codec, 0) < 0)
return ~0;
if (snd_ali_codec_ready(codec, port, 0) < 0)
return ~0;
return (snd_ali_5451_peek(codec, port) & 0xffff0000)>>16;
}
static void snd_ali_codec_write(ac97_t *ac97,
unsigned short reg,
unsigned short val )
{
ali_t *codec = ac97->private_data;
snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
snd_ali_codec_poke(codec, 0, reg, val);
return ;
}
static unsigned short snd_ali_codec_read(ac97_t *ac97, unsigned short reg)
{
ali_t *codec = ac97->private_data;
snd_ali_printk("codec_read reg=%xh.\n", reg);
return (snd_ali_codec_peek(codec, 0, reg));
}
/*
* AC97 Reset
*/
static int snd_ali_reset_5451(ali_t *codec)
{
struct pci_dev *pci_dev = NULL;
unsigned short wCount, wReg;
unsigned int dwVal;
if ((pci_dev = codec->pci_m1533) != NULL) {
pci_read_config_dword(pci_dev, 0x7c, &dwVal);
pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
udelay(5000);
pci_read_config_dword(pci_dev, 0x7c, &dwVal);
pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
udelay(5000);
}
pci_dev = codec->pci;
pci_read_config_dword(pci_dev, 0x44, &dwVal);
pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
udelay(500);
pci_read_config_dword(pci_dev, 0x44, &dwVal);
pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
udelay(5000);
wCount = 200;
while(wCount--) {
wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
if((wReg & 0x000f) == 0x000f)
return 0;
udelay(5000);
}
/* non-fatal if you have a non PM capable codec */
/* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
return 0;
}
#ifdef CODEC_RESET
static int snd_ali_reset_codec(ali_t *codec)
{
struct pci_dev *pci_dev = NULL;
unsigned char bVal = 0;
unsigned int dwVal;
unsigned short wCount, wReg;
pci_dev = codec->pci_m1533;
pci_read_config_dword(pci_dev, 0x7c, &dwVal);
pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
udelay(5000);
pci_read_config_dword(pci_dev, 0x7c, &dwVal);
pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
udelay(5000);
bVal = inb(ALI_REG(codec,ALI_SCTRL));
bVal |= 0x02;
outb(ALI_REG(codec,ALI_SCTRL),bVal);
udelay(5000);
bVal = inb(ALI_REG(codec,ALI_SCTRL));
bVal &= 0xfd;
outb(ALI_REG(codec,ALI_SCTRL),bVal);
udelay(15000);
wCount = 200;
while(wCount--) {
wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
if((wReg & 0x000f) == 0x000f)
return 0;
udelay(5000);
}
return -1;
}
#endif
/*
* ALI 5451 Controller
*/
static void snd_ali_enable_special_channel(ali_t *codec, unsigned int channel)
{
unsigned long dwVal = 0;
dwVal = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
dwVal |= 1 << (channel & 0x0000001f);
outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
}
static void snd_ali_disable_special_channel(ali_t *codec, unsigned int channel)
{
unsigned long dwVal = 0;
dwVal = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
dwVal &= ~(1 << (channel & 0x0000001f));
outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
}
static void snd_ali_enable_address_interrupt(ali_t * codec)
{
unsigned int gc;
gc = inl(ALI_REG(codec, ALI_GC_CIR));
gc |= ENDLP_IE;
gc |= MIDLP_IE;
outl( gc, ALI_REG(codec, ALI_GC_CIR));
}
static void snd_ali_disable_address_interrupt(ali_t * codec)
{
unsigned int gc;
gc = inl(ALI_REG(codec, ALI_GC_CIR));
gc &= ~ENDLP_IE;
gc &= ~MIDLP_IE;
outl(gc, ALI_REG(codec, ALI_GC_CIR));
}
#if 0 // not used
static void snd_ali_enable_voice_irq(ali_t *codec, unsigned int channel)
{
unsigned int mask;
snd_ali_channel_control_t *pchregs = &(codec->chregs);
snd_ali_printk("enable_voice_irq channel=%d\n",channel);
mask = 1 << (channel & 0x1f);
pchregs->data.ainten = inl(ALI_REG(codec,pchregs->regs.ainten));
pchregs->data.ainten |= mask;
outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
}
#endif
static void snd_ali_disable_voice_irq(ali_t *codec, unsigned int channel)
{
unsigned int mask;
snd_ali_channel_control_t *pchregs = &(codec->chregs);
snd_ali_printk("disable_voice_irq channel=%d\n",channel);
mask = 1 << (channel & 0x1f);
pchregs->data.ainten = inl(ALI_REG(codec,pchregs->regs.ainten));
pchregs->data.ainten &= ~mask;
outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
}
static int snd_ali_alloc_pcm_channel(ali_t *codec, int channel)
{
unsigned int idx = channel & 0x1f;
if (codec->synth.chcnt >= ALI_CHANNELS){
snd_printk("ali_alloc_pcm_channel: no free channels.\n");
return -1;
}
if (!(codec->synth.chmap & (1 << idx))) {
codec->synth.chmap |= 1 << idx;
codec->synth.chcnt++;
snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
return idx;
}
return -1;
}
static int snd_ali_find_free_channel(ali_t * codec, int rec)
{
int idx;
int result = -1;
snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
// recording
if (rec) {
if (codec->spdif_support &&
(inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT))
idx = ALI_SPDIF_IN_CHANNEL;
else
idx = ALI_PCM_IN_CHANNEL;
if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
return result;
} else {
snd_printk("ali_find_free_channel: record channel is busy now.\n");
return -1;
}
}
//playback...
if (codec->spdif_support &&
(inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)) {
idx = ALI_SPDIF_OUT_CHANNEL;
if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
return result;
} else {
snd_printk("ali_find_free_channel: S/PDIF out channel is in busy now.\n");
}
}
for (idx = 0; idx < ALI_CHANNELS; idx++) {
if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0)
return result;
}
snd_printk("ali_find_free_channel: no free channels.\n");
return -1;
}
static void snd_ali_free_channel_pcm(ali_t *codec, int channel)
{
unsigned int idx = channel & 0x0000001f;
snd_ali_printk("free_channel_pcm channel=%d\n",channel);
if (channel < 0 || channel >= ALI_CHANNELS)
return;
if (!(codec->synth.chmap & (1 << idx))) {
snd_printk("ali_free_channel_pcm: channel %d is not in use.\n",channel);
return;
} else {
codec->synth.chmap &= ~(1 << idx);
codec->synth.chcnt--;
}
}
#if 0 // not used
static void snd_ali_start_voice(ali_t * codec, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
snd_ali_printk("start_voice: channel=%d\n",channel);
outl(mask, ALI_REG(codec,codec->chregs.regs.start));
}
#endif
static void snd_ali_stop_voice(ali_t * codec, unsigned int channel)
{
unsigned int mask = 1 << (channel & 0x1f);
snd_ali_printk("stop_voice: channel=%d\n",channel);
outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
}
/*
* S/PDIF Part
*/
static void snd_ali_delay(ali_t *codec,int interval)
{
unsigned long begintimer,currenttimer;
begintimer = inl(ALI_REG(codec, ALI_STIMER));
currenttimer = inl(ALI_REG(codec, ALI_STIMER));
while (currenttimer < begintimer + interval) {
if(snd_ali_stimer_ready(codec, 1) < 0)
break;
currenttimer = inl(ALI_REG(codec, ALI_STIMER));
}
}
static void snd_ali_detect_spdif_rate(ali_t *codec)
{
u16 wval = 0;
u16 count = 0;
u8 bval = 0, R1 = 0, R2 = 0;
bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
bval |= 0x1F;
outb(bval,ALI_REG(codec,ALI_SPDIF_CTRL + 1));
while (((R1 < 0x0B )||(R1 > 0x0E)) && (R1 != 0x12) && count <= 50000) {
count ++;
snd_ali_delay(codec, 6);
bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
R1 = bval & 0x1F;
}
if (count > 50000) {
snd_printk("ali_detect_spdif_rate: timeout!\n");
return;
}
count = 0;
while (count++ <= 50000) {
snd_ali_delay(codec, 6);
bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
R2 = bval & 0x1F;
if (R2 != R1) R1 = R2; else break;
}
if (count > 50000) {
snd_printk("ali_detect_spdif_rate: timeout!\n");
return;
}
if (R2 >= 0x0b && R2 <= 0x0e) {
wval = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
wval &= 0xE0F0;
wval |= (u16)0x09 << 8 | (u16)0x05;
outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
bval = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
outb(bval|0x02,ALI_REG(codec,ALI_SPDIF_CS + 3));
} else if (R2 == 0x12) {
wval = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
wval &= 0xE0F0;
wval |= (u16)0x0E << 8 | (u16)0x08;
outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
bval = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
outb(bval|0x03,ALI_REG(codec,ALI_SPDIF_CS + 3));
}
}
static unsigned int snd_ali_get_spdif_in_rate(ali_t *codec)
{
u32 dwRate = 0;
u8 bval = 0;
bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
bval &= 0x7F;
bval |= 0x40;
outb(bval, ALI_REG(codec,ALI_SPDIF_CTRL));
snd_ali_detect_spdif_rate(codec);
bval = inb(ALI_REG(codec,ALI_SPDIF_CS + 3));
bval &= 0x0F;
if (bval == 0) dwRate = 44100;
if (bval == 1) dwRate = 48000;
if (bval == 2) dwRate = 32000;
return dwRate;
}
static void snd_ali_enable_spdif_in(ali_t *codec)
{
unsigned int dwVal;
dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
dwVal |= ALI_SPDIF_IN_SUPPORT;
outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
dwVal |= 0x02;
outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
}
static void snd_ali_disable_spdif_in(ali_t *codec)
{
unsigned int dwVal;
dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
dwVal &= ~ALI_SPDIF_IN_SUPPORT;
outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
}
static void snd_ali_set_spdif_out_rate(ali_t *codec, unsigned int rate)
{
unsigned char bVal;
unsigned int dwRate = 0;
if (rate == 32000) dwRate = 0x300;
if (rate == 44100) dwRate = 0;
if (rate == 48000) dwRate = 0x200;
bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
bVal &= (unsigned char)(~(1<<6));
bVal |= 0x80; //select right
outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
bVal &= (~0x80); //select left
outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
}
static void snd_ali_enable_spdif_out(ali_t *codec)
{
unsigned short wVal;
unsigned char bVal;
struct pci_dev *pci_dev = NULL;
pci_dev = codec->pci_m1533;
if (pci_dev == NULL)
return;
pci_read_config_byte(pci_dev, 0x61, &bVal);
bVal |= 0x40;
pci_write_config_byte(pci_dev, 0x61, bVal);
pci_read_config_byte(pci_dev, 0x7d, &bVal);
bVal |= 0x01;
pci_write_config_byte(pci_dev, 0x7d, bVal);
pci_read_config_byte(pci_dev, 0x7e, &bVal);
bVal &= (~0x20);
bVal |= 0x10;
pci_write_config_byte(pci_dev, 0x7e, bVal);
bVal = inb(ALI_REG(codec, ALI_SCTRL));
outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
{
wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
wVal |= ALI_SPDIF_OUT_SEL_PCM;
outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
snd_ali_disable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
}
}
static void snd_ali_enable_spdif_chnout(ali_t *codec)
{
unsigned short wVal = 0;
wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
/*
wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
if (flag & ALI_SPDIF_OUT_NON_PCM)
wVal |= 0x0002;
else
wVal &= (~0x0002);
outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
*/
snd_ali_enable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
}
static void snd_ali_disable_spdif_chnout(ali_t *codec)
{
unsigned short wVal = 0;
wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
wVal |= ALI_SPDIF_OUT_SEL_PCM;
outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
}
static void snd_ali_disable_spdif_out(ali_t *codec)
{
unsigned char bVal;
bVal = inb(ALI_REG(codec, ALI_SCTRL));
outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
snd_ali_disable_spdif_chnout(codec);
}
static void snd_ali_update_ptr(ali_t *codec,int channel)
{
snd_ali_voice_t *pvoice = NULL;
snd_pcm_runtime_t *runtime;
snd_ali_channel_control_t *pchregs = NULL;
unsigned int old, mask;
#ifdef ALI_DEBUG
unsigned int temp, cspf;
#endif
pchregs = &(codec->chregs);
// check if interrupt occurred for channel
old = pchregs->data.aint;
mask = ((unsigned int) 1L) << (channel & 0x1f);
if (!(old & mask))
return;
pvoice = &codec->synth.voices[channel];
runtime = pvoice->substream->runtime;
udelay(100);
spin_lock(&codec->reg_lock);
if (pvoice->pcm && pvoice->substream) {
/* pcm interrupt */
#ifdef ALI_DEBUG
outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
#endif
if (pvoice->running) {
snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",(u16)temp,cspf);
spin_unlock(&codec->reg_lock);
snd_pcm_period_elapsed(pvoice->substream);
spin_lock(&codec->reg_lock);
} else {
snd_ali_stop_voice(codec, channel);
snd_ali_disable_voice_irq(codec, channel);
}
} else if (codec->synth.voices[channel].synth) {
/* synth interrupt */
} else if (codec->synth.voices[channel].midi) {
/* midi interrupt */
} else {
/* unknown interrupt */
snd_ali_stop_voice(codec, channel);
snd_ali_disable_voice_irq(codec, channel);
}
spin_unlock(&codec->reg_lock);
outl(mask,ALI_REG(codec,pchregs->regs.aint));
pchregs->data.aint = old & (~mask);
}
static void snd_ali_interrupt(ali_t * codec)
{
int channel;
unsigned int audio_int;
snd_ali_channel_control_t *pchregs = NULL;
pchregs = &(codec->chregs);
audio_int = inl(ALI_REG(codec, ALI_MISCINT));
if (audio_int & ADDRESS_IRQ) {
// get interrupt status for all channels
pchregs->data.aint = inl(ALI_REG(codec,pchregs->regs.aint));
for (channel = 0; channel < ALI_CHANNELS; channel++) {
snd_ali_update_ptr(codec, channel);
}
}
outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
ALI_REG(codec,ALI_MISCINT));
}
static irqreturn_t snd_ali_card_interrupt(int irq,
void *dev_id,
struct pt_regs *regs)
{
ali_t *codec = dev_id;
if (codec == NULL)
return IRQ_NONE;
snd_ali_interrupt(codec);
return IRQ_HANDLED;
}
static snd_ali_voice_t *snd_ali_alloc_voice(ali_t * codec, int type, int rec)
{
snd_ali_voice_t *pvoice = NULL;
unsigned long flags;
int idx;
snd_ali_printk("alloc_voice: type=%d rec=%d\n",type,rec);
spin_lock_irqsave(&codec->voice_alloc, flags);
if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
idx = snd_ali_find_free_channel(codec,rec);
if(idx < 0) {
snd_printk("ali_alloc_voice: err.\n");
spin_unlock_irqrestore(&codec->voice_alloc, flags);
return NULL;
}
pvoice = &(codec->synth.voices[idx]);
pvoice->use = 1;
pvoice->pcm = 1;
pvoice->mode = rec;
spin_unlock_irqrestore(&codec->voice_alloc, flags);
return pvoice;
}
spin_unlock_irqrestore(&codec->voice_alloc, flags);
return NULL;
}
static void snd_ali_free_voice(ali_t * codec, snd_ali_voice_t *pvoice)
{
unsigned long flags;
void (*private_free)(void *);
void *private_data;
snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
if (pvoice == NULL || !pvoice->use)
return;
snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
spin_lock_irqsave(&codec->voice_alloc, flags);
private_free = pvoice->private_free;
private_data = pvoice->private_data;
pvoice->private_free = NULL;
pvoice->private_data = NULL;
if (pvoice->pcm) {
snd_ali_free_channel_pcm(codec, pvoice->number);
}
pvoice->use = pvoice->pcm = pvoice->synth = 0;
pvoice->substream = NULL;
spin_unlock_irqrestore(&codec->voice_alloc, flags);
if (private_free)
private_free(private_data);
}
static void snd_ali_clear_voices(ali_t * codec,
unsigned int v_min,
unsigned int v_max)
{
unsigned int i;
for (i = v_min; i <= v_max; i++) {
snd_ali_stop_voice(codec, i);
snd_ali_disable_voice_irq(codec, i);
}
}
static void snd_ali_write_voice_regs(ali_t * codec,
unsigned int Channel,
unsigned int LBA,
unsigned int CSO,
unsigned int ESO,
unsigned int DELTA,
unsigned int ALPHA_FMS,
unsigned int GVSEL,
unsigned int PAN,
unsigned int VOL,
unsigned int CTRL,
unsigned int EC)
{
unsigned int ctlcmds[4];
outb((unsigned char)(Channel & 0x001f),ALI_REG(codec,ALI_GC_CIR));
ctlcmds[0] = (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
ctlcmds[1] = LBA;
ctlcmds[2] = (ESO << 16) | (DELTA & 0x0ffff);
ctlcmds[3] = (GVSEL << 31) |
((PAN & 0x0000007f) << 24) |
((VOL & 0x000000ff) << 16) |
((CTRL & 0x0000000f) << 12) |
(EC & 0x00000fff);
outb(Channel, ALI_REG(codec, ALI_GC_CIR));
outl(ctlcmds[0], ALI_REG(codec,ALI_CSO_ALPHA_FMS));
outl(ctlcmds[1], ALI_REG(codec,ALI_LBA));
outl(ctlcmds[2], ALI_REG(codec,ALI_ESO_DELTA));
outl(ctlcmds[3], ALI_REG(codec,ALI_GVSEL_PAN_VOC_CTRL_EC));
outl(0x30000000, ALI_REG(codec, ALI_EBUF1)); /* Still Mode */
outl(0x30000000, ALI_REG(codec, ALI_EBUF2)); /* Still Mode */
}
static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
{
unsigned int delta;
if (rate < 4000) rate = 4000;
if (rate > 48000) rate = 48000;
if (rec) {
if (rate == 44100)
delta = 0x116a;
else if (rate == 8000)
delta = 0x6000;
else if (rate == 48000)
delta = 0x1000;
else
delta = ((48000 << 12) / rate) & 0x0000ffff;
} else {
if (rate == 44100)
delta = 0xeb3;
else if (rate == 8000)
delta = 0x2ab;
else if (rate == 48000)
delta = 0x1000;
else
delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
}
return delta;
}
static unsigned int snd_ali_control_mode(snd_pcm_substream_t *substream)
{
unsigned int CTRL;
snd_pcm_runtime_t *runtime = substream->runtime;
/* set ctrl mode
CTRL default: 8-bit (unsigned) mono, loop mode enabled
*/
CTRL = 0x00000001;
if (snd_pcm_format_width(runtime->format) == 16)
CTRL |= 0x00000008; // 16-bit data
if (!snd_pcm_format_unsigned(runtime->format))
CTRL |= 0x00000002; // signed data
if (runtime->channels > 1)
CTRL |= 0x00000004; // stereo data
return CTRL;
}
/*
* PCM part
*/
static int snd_ali_ioctl(snd_pcm_substream_t * substream,
unsigned int cmd, void *arg)
{
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
static int snd_ali_trigger(snd_pcm_substream_t *substream,
int cmd)
{
ali_t *codec = snd_pcm_substream_chip(substream);
struct list_head *pos;
snd_pcm_substream_t *s;
unsigned int what, whati, capture_flag;
snd_ali_voice_t *pvoice = NULL, *evoice = NULL;
unsigned int val;
int do_start;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
do_start = 1; break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
do_start = 0; break;
default:
return -EINVAL;
}
what = whati = capture_flag = 0;
snd_pcm_group_for_each(pos, substream) {
s = snd_pcm_group_substream_entry(pos);
if ((ali_t *) snd_pcm_substream_chip(s) == codec) {
pvoice = (snd_ali_voice_t *) s->runtime->private_data;
evoice = pvoice->extra;
what |= 1 << (pvoice->number & 0x1f);
if (evoice == NULL) {
whati |= 1 << (pvoice->number & 0x1f);
} else {
whati |= 1 << (evoice->number & 0x1f);
what |= 1 << (evoice->number & 0x1f);
}
if (do_start) {
pvoice->running = 1;
if (evoice != NULL)
evoice->running = 1;
} else {
pvoice->running = 0;
if (evoice != NULL)
evoice->running = 0;
}
snd_pcm_trigger_done(s, substream);
if (pvoice->mode)
capture_flag = 1;
}
}
spin_lock(&codec->reg_lock);
if (! do_start) {
outl(what, ALI_REG(codec, ALI_STOP));
}
val = inl(ALI_REG(codec, ALI_AINTEN));
if (do_start) {
val |= whati;
} else {
val &= ~whati;
}
outl(val, ALI_REG(codec, ALI_AINTEN));
if (do_start) {
outl(what, ALI_REG(codec, ALI_START));
}
snd_ali_printk("trigger: what=%xh whati=%xh\n",what,whati);
spin_unlock(&codec->reg_lock);
return 0;
}
static int snd_ali_playback_hw_params(snd_pcm_substream_t * substream,
snd_pcm_hw_params_t * hw_params)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
snd_ali_voice_t *evoice = pvoice->extra;
int err;
err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
if (err < 0) return err;
/* voice management */
if (params_buffer_size(hw_params)/2 != params_period_size(hw_params)) {
if (evoice == NULL) {
evoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
if (evoice == NULL)
return -ENOMEM;
pvoice->extra = evoice;
evoice->substream = substream;
}
} else {
if (evoice != NULL) {
snd_ali_free_voice(codec, evoice);
pvoice->extra = evoice = NULL;
}
}
return 0;
}
static int snd_ali_playback_hw_free(snd_pcm_substream_t * substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
snd_ali_voice_t *evoice = pvoice ? pvoice->extra : NULL;
snd_pcm_lib_free_pages(substream);
if (evoice != NULL) {
snd_ali_free_voice(codec, evoice);
pvoice->extra = NULL;
}
return 0;
}
static int snd_ali_capture_hw_params(snd_pcm_substream_t * substream,
snd_pcm_hw_params_t * hw_params)
{
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
}
static int snd_ali_capture_hw_free(snd_pcm_substream_t * substream)
{
return snd_pcm_lib_free_pages(substream);
}
static int snd_ali_playback_prepare(snd_pcm_substream_t * substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
snd_ali_voice_t *evoice = pvoice->extra;
unsigned long flags;
unsigned int LBA;
unsigned int Delta;
unsigned int ESO;
unsigned int CTRL;
unsigned int GVSEL;
unsigned int PAN;
unsigned int VOL;
unsigned int EC;
snd_ali_printk("playback_prepare ...\n");
spin_lock_irqsave(&codec->reg_lock, flags);
/* set Delta (rate) value */
Delta = snd_ali_convert_rate(runtime->rate, 0);
if ((pvoice->number == ALI_SPDIF_IN_CHANNEL) ||
(pvoice->number == ALI_PCM_IN_CHANNEL))
snd_ali_disable_special_channel(codec, pvoice->number);
else if (codec->spdif_support &&
(inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)
&& (pvoice->number == ALI_SPDIF_OUT_CHANNEL)) {
snd_ali_set_spdif_out_rate(codec, runtime->rate);
Delta = 0x1000;
}
/* set Loop Back Address */
LBA = runtime->dma_addr;
/* set interrupt count size */
pvoice->count = runtime->period_size;
/* set target ESO for channel */
pvoice->eso = runtime->buffer_size;
snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",pvoice->eso,pvoice->count);
/* set ESO to capture first MIDLP interrupt */
ESO = pvoice->eso -1;
/* set ctrl mode */
CTRL = snd_ali_control_mode(substream);
GVSEL = 1;
PAN = 0;
VOL = 0;
EC = 0;
snd_ali_printk("playback_prepare:\n ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
snd_ali_write_voice_regs( codec,
pvoice->number,
LBA,
0, /* cso */
ESO,
Delta,
0, /* alpha */
GVSEL,
PAN,
VOL,
CTRL,
EC);
if (evoice != NULL) {
evoice->count = pvoice->count;
evoice->eso = pvoice->count << 1;
ESO = evoice->eso - 1;
snd_ali_write_voice_regs(codec,
evoice->number,
LBA,
0, /* cso */
ESO,
Delta,
0, /* alpha */
GVSEL,
(unsigned int)0x7f,
(unsigned int)0x3ff,
CTRL,
EC);
}
spin_unlock_irqrestore(&codec->reg_lock, flags);
return 0;
}
static int snd_ali_capture_prepare(snd_pcm_substream_t * substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
unsigned long flags;
unsigned int LBA;
unsigned int Delta;
unsigned int ESO;
unsigned int CTRL;
unsigned int GVSEL;
unsigned int PAN;
unsigned int VOL;
unsigned int EC;
u8 bValue;
spin_lock_irqsave(&codec->reg_lock, flags);
snd_ali_printk("capture_prepare...\n");
snd_ali_enable_special_channel(codec,pvoice->number);
Delta = snd_ali_convert_rate(runtime->rate, 1);
// Prepare capture intr channel
if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
unsigned int rate;
if (codec->revision != ALI_5451_V02) {
spin_unlock_irqrestore(&codec->reg_lock, flags);
return -1;
}
rate = snd_ali_get_spdif_in_rate(codec);
if (rate == 0) {
snd_printk("ali_capture_preapre: spdif rate detect err!\n");
rate = 48000;
}
bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
if (bValue & 0x10) {
outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
printk("clear SPDIF parity error flag.\n");
}
if (rate != 48000)
Delta = ((rate << 12)/runtime->rate)&0x00ffff;
}
// set target ESO for channel
pvoice->eso = runtime->buffer_size;
// set interrupt count size
pvoice->count = runtime->period_size;
// set Loop Back Address
LBA = runtime->dma_addr;
// set ESO to capture first MIDLP interrupt
ESO = pvoice->eso - 1;
CTRL = snd_ali_control_mode(substream);
GVSEL = 0;
PAN = 0x00;
VOL = 0x00;
EC = 0;
snd_ali_write_voice_regs( codec,
pvoice->number,
LBA,
0, /* cso */
ESO,
Delta,
0, /* alpha */
GVSEL,
PAN,
VOL,
CTRL,
EC);
spin_unlock_irqrestore(&codec->reg_lock, flags);
return 0;
}
static snd_pcm_uframes_t snd_ali_playback_pointer(snd_pcm_substream_t *substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
unsigned int cso;
spin_lock(&codec->reg_lock);
if (!pvoice->running) {
spin_unlock(&codec->reg_lock);
return 0;
}
outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
spin_unlock(&codec->reg_lock);
snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
return cso;
}
static snd_pcm_uframes_t snd_ali_capture_pointer(snd_pcm_substream_t *substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
unsigned int cso;
unsigned long flags;
spin_lock_irqsave(&codec->reg_lock, flags);
if (!pvoice->running) {
spin_unlock_irqrestore(&codec->reg_lock, flags);
return 0;
}
outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
spin_unlock_irqrestore(&codec->reg_lock, flags);
return cso;
}
static snd_pcm_hardware_t snd_ali_playback =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_SYNC_START),
.formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 4000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (256*1024),
.period_bytes_min = 64,
.period_bytes_max = (256*1024),
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 0,
};
/*
* Capture support device description
*/
static snd_pcm_hardware_t snd_ali_capture =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_SYNC_START),
.formats = (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
.rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
.rate_min = 4000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 2,
.buffer_bytes_max = (128*1024),
.period_bytes_min = 64,
.period_bytes_max = (128*1024),
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 0,
};
static void snd_ali_pcm_free_substream(snd_pcm_runtime_t *runtime)
{
unsigned long flags;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
ali_t *codec;
if (pvoice) {
codec = pvoice->codec;
spin_lock_irqsave(&codec->reg_lock, flags);
snd_ali_free_voice(pvoice->codec, pvoice);
spin_unlock_irqrestore(&codec->reg_lock, flags);
}
}
static int snd_ali_playback_open(snd_pcm_substream_t * substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice;
unsigned long flags = 0;
spin_lock_irqsave(&codec->reg_lock, flags);
pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
if (pvoice == NULL) {
spin_unlock_irqrestore(&codec->reg_lock, flags);
return -EAGAIN;
}
pvoice->codec = codec;
spin_unlock_irqrestore(&codec->reg_lock, flags);
pvoice->substream = substream;
runtime->private_data = pvoice;
runtime->private_free = snd_ali_pcm_free_substream;
runtime->hw = snd_ali_playback;
snd_pcm_set_sync(substream);
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
return 0;
}
static int snd_ali_capture_open(snd_pcm_substream_t * substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice;
unsigned long flags;
spin_lock_irqsave(&codec->reg_lock, flags);
pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 1);
if (pvoice == NULL) {
spin_unlock_irqrestore(&codec->reg_lock, flags);
return -EAGAIN;
}
pvoice->codec = codec;
spin_unlock_irqrestore(&codec->reg_lock, flags);
pvoice->substream = substream;
runtime->private_data = pvoice;
runtime->private_free = snd_ali_pcm_free_substream;
runtime->hw = snd_ali_capture;
snd_pcm_set_sync(substream);
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
return 0;
}
static int snd_ali_playback_close(snd_pcm_substream_t * substream)
{
return 0;
}
static int snd_ali_capture_close(snd_pcm_substream_t * substream)
{
ali_t *codec = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
snd_ali_disable_special_channel(codec,pvoice->number);
return 0;
}
static snd_pcm_ops_t snd_ali_playback_ops = {
.open = snd_ali_playback_open,
.close = snd_ali_playback_close,
.ioctl = snd_ali_ioctl,
.hw_params = snd_ali_playback_hw_params,
.hw_free = snd_ali_playback_hw_free,
.prepare = snd_ali_playback_prepare,
.trigger = snd_ali_trigger,
.pointer = snd_ali_playback_pointer,
};
static snd_pcm_ops_t snd_ali_capture_ops = {
.open = snd_ali_capture_open,
.close = snd_ali_capture_close,
.ioctl = snd_ali_ioctl,
.hw_params = snd_ali_capture_hw_params,
.hw_free = snd_ali_capture_hw_free,
.prepare = snd_ali_capture_prepare,
.trigger = snd_ali_trigger,
.pointer = snd_ali_capture_pointer,
};
static void snd_ali_pcm_free(snd_pcm_t *pcm)
{
ali_t *codec = pcm->private_data;
codec->pcm = NULL;
}
static int __devinit snd_ali_pcm(ali_t * codec, int device, snd_pcm_t ** rpcm)
{
snd_pcm_t *pcm;
int err;
if (rpcm) *rpcm = NULL;
err = snd_pcm_new(codec->card, "ALI 5451", device, ALI_CHANNELS, 1, &pcm);
if (err < 0) {
snd_printk("snd_ali_pcm: err called snd_pcm_new.\n");
return err;
}
pcm->private_data = codec;
pcm->private_free = snd_ali_pcm_free;
pcm->info_flags = 0;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ali_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ali_capture_ops);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(codec->pci), 64*1024, 128*1024);
pcm->info_flags = 0;
pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
strcpy(pcm->name, "ALI 5451");
codec->pcm = pcm;
if (rpcm) *rpcm = pcm;
return 0;
}
#define ALI5451_SPDIF(xname, xindex, value) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
.info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
.put = snd_ali5451_spdif_put, .private_value = value}
static int snd_ali5451_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int snd_ali5451_spdif_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
unsigned long flags;
ali_t *codec = kcontrol->private_data;
unsigned int enable;
enable = ucontrol->value.integer.value[0] ? 1 : 0;
spin_lock_irqsave(&codec->reg_lock, flags);
switch(kcontrol->private_value) {
case 0:
enable = (codec->spdif_mask & 0x02) ? 1 : 0;
break;
case 1:
enable = ((codec->spdif_mask & 0x02) && (codec->spdif_mask & 0x04)) ? 1 : 0;
break;
case 2:
enable = (codec->spdif_mask & 0x01) ? 1 : 0;
break;
default:
break;
}
ucontrol->value.integer.value[0] = enable;
spin_unlock_irqrestore(&codec->reg_lock, flags);
return 0;
}
static int snd_ali5451_spdif_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
unsigned long flags;
ali_t *codec = kcontrol->private_data;
unsigned int change = 0, enable = 0;
enable = ucontrol->value.integer.value[0] ? 1 : 0;
spin_lock_irqsave(&codec->reg_lock, flags);
switch (kcontrol->private_value) {
case 0:
change = (codec->spdif_mask & 0x02) ? 1 : 0;
change = change ^ enable;
if (change) {
if (enable) {
codec->spdif_mask |= 0x02;
snd_ali_enable_spdif_out(codec);
} else {
codec->spdif_mask &= ~(0x02);
codec->spdif_mask &= ~(0x04);
snd_ali_disable_spdif_out(codec);
}
}
break;
case 1:
change = (codec->spdif_mask & 0x04) ? 1 : 0;
change = change ^ enable;
if (change && (codec->spdif_mask & 0x02)) {
if (enable) {
codec->spdif_mask |= 0x04;
snd_ali_enable_spdif_chnout(codec);
} else {
codec->spdif_mask &= ~(0x04);
snd_ali_disable_spdif_chnout(codec);
}
}
break;
case 2:
change = (codec->spdif_mask & 0x01) ? 1 : 0;
change = change ^ enable;
if (change) {
if (enable) {
codec->spdif_mask |= 0x01;
snd_ali_enable_spdif_in(codec);
} else {
codec->spdif_mask &= ~(0x01);
snd_ali_disable_spdif_in(codec);
}
}
break;
default:
break;
}
spin_unlock_irqrestore(&codec->reg_lock, flags);
return change;
}
static snd_kcontrol_new_t snd_ali5451_mixer_spdif[] __devinitdata = {
/* spdif aplayback switch */
/* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
ALI5451_SPDIF("IEC958 Output switch", 0, 0),
/* spdif out to spdif channel */
ALI5451_SPDIF("IEC958 Channel Output Switch", 0, 1),
/* spdif in from spdif channel */
ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
};
static void snd_ali_mixer_free_ac97_bus(ac97_bus_t *bus)
{
ali_t *codec = bus->private_data;
codec->ac97_bus = NULL;
}
static void snd_ali_mixer_free_ac97(ac97_t *ac97)
{
ali_t *codec = ac97->private_data;
codec->ac97 = NULL;
}
static int __devinit snd_ali_mixer(ali_t * codec)
{
ac97_template_t ac97;
unsigned int idx;
int err;
static ac97_bus_ops_t ops = {
.write = snd_ali_codec_write,
.read = snd_ali_codec_read,
};
if ((err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus)) < 0)
return err;
codec->ac97_bus->private_free = snd_ali_mixer_free_ac97_bus;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = codec;
ac97.private_free = snd_ali_mixer_free_ac97;
if ((err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97)) < 0) {
snd_printk("ali mixer creating error.\n");
return err;
}
if (codec->spdif_support) {
for(idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
err=snd_ctl_add(codec->card, snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
if (err < 0) return err;
}
}
return 0;
}
#ifdef CONFIG_PM
static int ali_suspend(snd_card_t *card, pm_message_t state)
{
ali_t *chip = card->pm_private_data;
ali_image_t *im;
int i, j;
im = chip->image;
if (! im)
return 0;
snd_pcm_suspend_all(chip->pcm);
snd_ac97_suspend(chip->ac97);
spin_lock_irq(&chip->reg_lock);
im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
// im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START));
im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
// disable all IRQ bits
outl(0, ALI_REG(chip, ALI_MISCINT));
for (i = 0; i < ALI_GLOBAL_REGS; i++) {
if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
continue;
im->regs[i] = inl(ALI_REG(chip, i*4));
}
for (i = 0; i < ALI_CHANNELS; i++) {
outb(i, ALI_REG(chip, ALI_GC_CIR));
for (j = 0; j < ALI_CHANNEL_REGS; j++)
im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
}
// stop all HW channel
outl(0xffffffff, ALI_REG(chip, ALI_STOP));
spin_unlock_irq(&chip->reg_lock);
pci_disable_device(chip->pci);
return 0;
}
static int ali_resume(snd_card_t *card)
{
ali_t *chip = card->pm_private_data;
ali_image_t *im;
int i, j;
im = chip->image;
if (! im)
return 0;
pci_enable_device(chip->pci);
spin_lock_irq(&chip->reg_lock);
for (i = 0; i < ALI_CHANNELS; i++) {
outb(i, ALI_REG(chip, ALI_GC_CIR));
for (j = 0; j < ALI_CHANNEL_REGS; j++)
outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
}
for (i = 0; i < ALI_GLOBAL_REGS; i++) {
if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) || (i*4 == ALI_START))
continue;
outl(im->regs[i], ALI_REG(chip, i*4));
}
// start HW channel
outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
// restore IRQ enable bits
outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
spin_unlock_irq(&chip->reg_lock);
snd_ac97_resume(chip->ac97);
return 0;
}
#endif /* CONFIG_PM */
static int snd_ali_free(ali_t * codec)
{
if (codec->hw_initialized)
snd_ali_disable_address_interrupt(codec);
if (codec->irq >= 0) {
synchronize_irq(codec->irq);
free_irq(codec->irq, (void *)codec);
}
if (codec->port)
pci_release_regions(codec->pci);
pci_disable_device(codec->pci);
#ifdef CONFIG_PM
kfree(codec->image);
#endif
kfree(codec);
return 0;
}
static int snd_ali_chip_init(ali_t *codec)
{
unsigned int legacy;
unsigned char temp;
struct pci_dev *pci_dev = NULL;
snd_ali_printk("chip initializing ... \n");
if (snd_ali_reset_5451(codec)) {
snd_printk("ali_chip_init: reset 5451 error.\n");
return -1;
}
if (codec->revision == ALI_5451_V02) {
pci_dev = codec->pci_m1533;
pci_read_config_byte(pci_dev, 0x59, &temp);
temp |= 0x80;
pci_write_config_byte(pci_dev, 0x59, temp);
pci_dev = codec->pci_m7101;
pci_read_config_byte(pci_dev, 0xb8, &temp);
temp |= 0x20;
pci_write_config_byte(pci_dev, 0xB8, temp);
}
pci_read_config_dword(codec->pci, 0x44, &legacy);
legacy &= 0xff00ff00;
legacy |= 0x000800aa;
pci_write_config_dword(codec->pci, 0x44, legacy);
outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
outl(0xffffffff, ALI_REG(codec, ALI_AINT));
outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
outb(0x10, ALI_REG(codec, ALI_MPUR2));
codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
codec->ac97_ext_status = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_STATUS);
if (codec->spdif_support) {
snd_ali_enable_spdif_out(codec);
codec->spdif_mask = 0x00000002;
}
snd_ali_printk("chip initialize succeed.\n");
return 0;
}
static int __devinit snd_ali_resources(ali_t *codec)
{
int err;
snd_ali_printk("resouces allocation ...\n");
if ((err = pci_request_regions(codec->pci, "ALI 5451")) < 0)
return err;
codec->port = pci_resource_start(codec->pci, 0);
if (request_irq(codec->pci->irq, snd_ali_card_interrupt, SA_INTERRUPT|SA_SHIRQ, "ALI 5451", (void *)codec)) {
snd_printk("Unable to request irq.\n");
return -EBUSY;
}
codec->irq = codec->pci->irq;
snd_ali_printk("resouces allocated.\n");
return 0;
}
static int snd_ali_dev_free(snd_device_t *device)
{
ali_t *codec=device->device_data;
snd_ali_free(codec);
return 0;
}
static int __devinit snd_ali_create(snd_card_t * card,
struct pci_dev *pci,
int pcm_streams,
int spdif_support,
ali_t ** r_ali)
{
ali_t *codec;
int i, err;
unsigned short cmdw = 0;
struct pci_dev *pci_dev = NULL;
static snd_device_ops_t ops = {
(snd_dev_free_t *)snd_ali_dev_free,
NULL,
NULL
};
*r_ali = NULL;
snd_ali_printk("creating ...\n");
/* enable PCI device */
if ((err = pci_enable_device(pci)) < 0)
return err;
/* check, if we can restrict PCI DMA transfers to 31 bits */
if (pci_set_dma_mask(pci, 0x7fffffff) < 0 ||
pci_set_consistent_dma_mask(pci, 0x7fffffff) < 0) {
snd_printk("architecture does not support 31bit PCI busmaster DMA\n");
pci_disable_device(pci);
return -ENXIO;
}
if ((codec = kcalloc(1, sizeof(*codec), GFP_KERNEL)) == NULL) {
pci_disable_device(pci);
return -ENOMEM;
}
spin_lock_init(&codec->reg_lock);
spin_lock_init(&codec->voice_alloc);
codec->card = card;
codec->pci = pci;
codec->irq = -1;
pci_read_config_byte(pci, PCI_REVISION_ID, &codec->revision);
codec->spdif_support = spdif_support;
if (pcm_streams < 1)
pcm_streams = 1;
if (pcm_streams > 32)
pcm_streams = 32;
pci_set_master(pci);
pci_read_config_word(pci, PCI_COMMAND, &cmdw);
if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
cmdw |= PCI_COMMAND_IO;
pci_write_config_word(pci, PCI_COMMAND, cmdw);
}
pci_set_master(pci);
if (snd_ali_resources(codec)) {
snd_ali_free(codec);
return -EBUSY;
}
synchronize_irq(pci->irq);
codec->synth.chmap = 0;
codec->synth.chcnt = 0;
codec->spdif_mask = 0;
codec->synth.synthcount = 0;
if (codec->revision == ALI_5451_V02)
codec->chregs.regs.ac97read = ALI_AC97_WRITE;
else
codec->chregs.regs.ac97read = ALI_AC97_READ;
codec->chregs.regs.ac97write = ALI_AC97_WRITE;
codec->chregs.regs.start = ALI_START;
codec->chregs.regs.stop = ALI_STOP;
codec->chregs.regs.aint = ALI_AINT;
codec->chregs.regs.ainten = ALI_AINTEN;
codec->chregs.data.start = 0x00;
codec->chregs.data.stop = 0x00;
codec->chregs.data.aint = 0x00;
codec->chregs.data.ainten = 0x00;
/* M1533: southbridge */
pci_dev = pci_find_device(0x10b9, 0x1533, NULL);
codec->pci_m1533 = pci_dev;
if (! codec->pci_m1533) {
snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
snd_ali_free(codec);
return -ENODEV;
}
/* M7101: power management */
pci_dev = pci_find_device(0x10b9, 0x7101, NULL);
codec->pci_m7101 = pci_dev;
if (! codec->pci_m7101 && codec->revision == ALI_5451_V02) {
snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
snd_ali_free(codec);
return -ENODEV;
}
snd_ali_printk("snd_device_new is called.\n");
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops)) < 0) {
snd_ali_free(codec);
return err;
}
/* initialise synth voices*/
for (i = 0; i < ALI_CHANNELS; i++ ) {
codec->synth.voices[i].number = i;
}
if ((err = snd_ali_chip_init(codec)) < 0) {
snd_printk("ali create: chip init error.\n");
return err;
}
#ifdef CONFIG_PM
codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
if (! codec->image)
snd_printk(KERN_WARNING "can't allocate apm buffer\n");
else
snd_card_set_pm_callback(card, ali_suspend, ali_resume, codec);
#endif
snd_ali_enable_address_interrupt(codec);
codec->hw_initialized = 1;
*r_ali = codec;
snd_ali_printk("created.\n");
return 0;
}
static int __devinit snd_ali_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
snd_card_t *card;
ali_t *codec;
int err;
snd_ali_printk("probe ...\n");
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;
if ((err = snd_ali_create(card, pci, pcm_channels[dev], spdif[dev], &codec)) < 0) {
snd_card_free(card);
return err;
}
snd_ali_printk("mixer building ...\n");
if ((err = snd_ali_mixer(codec)) < 0) {
snd_card_free(card);
return err;
}
snd_ali_printk("pcm building ...\n");
if ((err = snd_ali_pcm(codec, 0, NULL)) < 0) {
snd_card_free(card);
return err;
}
strcpy(card->driver, "ALI5451");
strcpy(card->shortname, "ALI 5451");
sprintf(card->longname, "%s at 0x%lx, irq %li",
card->shortname, codec->port, codec->irq);
snd_ali_printk("register card.\n");
if ((err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
pci_set_drvdata(pci, card);
dev++;
return 0;
}
static void __devexit snd_ali_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}
static struct pci_driver driver = {
.name = "ALI 5451",
.id_table = snd_ali_ids,
.probe = snd_ali_probe,
.remove = __devexit_p(snd_ali_remove),
SND_PCI_PM_CALLBACKS
};
static int __init alsa_card_ali_init(void)
{
return pci_module_init(&driver);
}
static void __exit alsa_card_ali_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(alsa_card_ali_init)
module_exit(alsa_card_ali_exit)