/*
* 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 <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/module.h>
#include <linux/dma-mapping.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_DEFAULT_IDX1; /* Index */
static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */
static int pcm_channels = 32;
static bool spdif;
module_param(index, int, 0444);
MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
module_param(id, charp, 0444);
MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
module_param(pcm_channels, int, 0444);
MODULE_PARM_DESC(pcm_channels, "PCM Channels");
module_param(spdif, bool, 0444);
MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
/* just for backward compatibility */
static bool enable;
module_param(enable, bool, 0444);
/*
* Debug part definitions
*/
/* #define ALI_DEBUG */
#ifdef ALI_DEBUG
#define snd_ali_printk(format, args...) printk(KERN_DEBUG format, ##args);
#else
#define snd_ali_printk(format, args...)
#endif
/*
* Constants definition
*/
#define DEVICE_ID_ALI5451 ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
#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 ALI_MODEM_IN_CHANNEL 21
#define ALI_MODEM_OUT_CHANNEL 20
#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_SCTRL_LINE_IN2 (1 << 9)
#define ALI_SCTRL_GPIO_IN2 (1 << 13)
#define ALI_SCTRL_LINE_OUT_EN (1 << 20)
#define ALI_SCTRL_GPIO_OUT_EN (1 << 23)
#define ALI_SCTRL_CODEC1_READY (1 << 24)
#define ALI_SCTRL_CODEC2_READY (1 << 25)
#define ALI_AC97_GPIO 0x4c
#define ALI_AC97_GPIO_ENABLE 0x8000
#define ALI_AC97_GPIO_DATA_SHIFT 16
#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 GPIO_IRQ 0x01000000
#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)
#define MAX_CODECS 2
struct snd_ali;
struct snd_ali_voice;
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;
};
struct snd_ali_voice {
unsigned int number;
unsigned int use :1,
pcm :1,
midi :1,
mode :1,
synth :1,
running :1;
/* PCM data */
struct snd_ali *codec;
struct snd_pcm_substream *substream;
struct snd_ali_voice *extra;
int eso; /* final ESO value for channel */
int count; /* runtime->period_size */
/* --- */
void *private_data;
void (*private_free)(void *private_data);
};
struct snd_alidev {
struct snd_ali_voice voices[ALI_CHANNELS];
unsigned int chcnt; /* num of opened channels */
unsigned int chmap; /* bitmap for opened channels */
unsigned int synthcount;
};
#define ALI_GLOBAL_REGS 56
#define ALI_CHANNEL_REGS 8
struct snd_ali_image {
u32 regs[ALI_GLOBAL_REGS];
u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
};
struct snd_ali {
int 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;
struct snd_card *card;
struct snd_pcm *pcm[MAX_CODECS];
struct snd_alidev synth;
struct snd_ali_channel_control chregs;
/* S/PDIF Mask */
unsigned int spdif_mask;
unsigned int spurious_irq_count;
unsigned int spurious_irq_max_delta;
unsigned int num_of_codecs;
struct snd_ac97_bus *ac97_bus;
struct snd_ac97 *ac97[MAX_CODECS];
unsigned short ac97_ext_id;
unsigned short ac97_ext_status;
spinlock_t reg_lock;
spinlock_t voice_alloc;
#ifdef CONFIG_PM
struct snd_ali_image *image;
#endif
};
static DEFINE_PCI_DEVICE_TABLE(snd_ali_ids) = {
{PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
{0, }
};
MODULE_DEVICE_TABLE(pci, snd_ali_ids);
static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
unsigned short);
/*
* AC97 ACCESS
*/
static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
unsigned int port)
{
return (unsigned int)inl(ALI_REG(codec, port));
}
static inline void snd_ali_5451_poke(struct snd_ali *codec,
unsigned int port,
unsigned int val)
{
outl((unsigned int)val, ALI_REG(codec, port));
}
static int snd_ali_codec_ready(struct snd_ali *codec,
unsigned int port)
{
unsigned long end_time;
unsigned int res;
end_time = jiffies + msecs_to_jiffies(250);
for (;;) {
res = snd_ali_5451_peek(codec,port);
if (!(res & 0x8000))
return 0;
if (!time_after_eq(end_time, jiffies))
break;
schedule_timeout_uninterruptible(1);
}
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(struct snd_ali *codec)
{
unsigned long end_time;
unsigned long dwChk1,dwChk2;
dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
end_time = jiffies + msecs_to_jiffies(250);
for (;;) {
dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
if (dwChk2 != dwChk1)
return 0;
if (!time_after_eq(end_time, jiffies))
break;
schedule_timeout_uninterruptible(1);
}
snd_printk(KERN_ERR "ali_stimer_read: stimer is not ready.\n");
return -EIO;
}
static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
unsigned short reg,
unsigned short val)
{
unsigned int dwVal;
unsigned int port;
if (reg >= 0x80) {
snd_printk(KERN_ERR "ali_codec_poke: reg(%xh) invalid.\n", reg);
return;
}
port = codec->chregs.regs.ac97write;
if (snd_ali_codec_ready(codec, port) < 0)
return;
if (snd_ali_stimer_ready(codec) < 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(struct snd_ali *codec,
int secondary,
unsigned short reg)
{
unsigned int dwVal;
unsigned int port;
if (reg >= 0x80) {
snd_printk(KERN_ERR "ali_codec_peek: reg(%xh) invalid.\n", reg);
return ~0;
}
port = codec->chregs.regs.ac97read;
if (snd_ali_codec_ready(codec, port) < 0)
return ~0;
if (snd_ali_stimer_ready(codec) < 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)
return ~0;
if (snd_ali_codec_ready(codec, port) < 0)
return ~0;
return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
}
static void snd_ali_codec_write(struct snd_ac97 *ac97,
unsigned short reg,
unsigned short val )
{
struct snd_ali *codec = ac97->private_data;
snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
if (reg == AC97_GPIO_STATUS) {
outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
ALI_REG(codec, ALI_AC97_GPIO));
return;
}
snd_ali_codec_poke(codec, ac97->num, reg, val);
return ;
}
static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
unsigned short reg)
{
struct snd_ali *codec = ac97->private_data;
snd_ali_printk("codec_read reg=%xh.\n", reg);
return snd_ali_codec_peek(codec, ac97->num, reg);
}
/*
* AC97 Reset
*/
static int snd_ali_reset_5451(struct snd_ali *codec)
{
struct pci_dev *pci_dev;
unsigned short wCount, wReg;
unsigned int dwVal;
pci_dev = codec->pci_m1533;
if (pci_dev) {
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;
}
/*
* ALI 5451 Controller
*/
static void snd_ali_enable_special_channel(struct snd_ali *codec,
unsigned int channel)
{
unsigned long dwVal;
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(struct snd_ali *codec,
unsigned int channel)
{
unsigned long dwVal;
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(struct snd_ali *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(struct snd_ali *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_voice_irq(struct snd_ali *codec,
unsigned int channel)
{
unsigned int mask;
struct snd_ali_channel_control *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(struct snd_ali *codec, int channel)
{
unsigned int idx = channel & 0x1f;
if (codec->synth.chcnt >= ALI_CHANNELS){
snd_printk(KERN_ERR
"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(struct snd_ali * 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;
result = snd_ali_alloc_pcm_channel(codec, idx);
if (result >= 0)
return result;
else {
snd_printk(KERN_ERR "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;
result = snd_ali_alloc_pcm_channel(codec, idx);
if (result >= 0)
return result;
else
snd_printk(KERN_ERR "ali_find_free_channel: "
"S/PDIF out channel is in busy now.\n");
}
for (idx = 0; idx < ALI_CHANNELS; idx++) {
result = snd_ali_alloc_pcm_channel(codec, idx);
if (result >= 0)
return result;
}
snd_printk(KERN_ERR "ali_find_free_channel: no free channels.\n");
return -1;
}
static void snd_ali_free_channel_pcm(struct snd_ali *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(KERN_ERR "ali_free_channel_pcm: "
"channel %d is not in use.\n", channel);
return;
} else {
codec->synth.chmap &= ~(1 << idx);
codec->synth.chcnt--;
}
}
static void snd_ali_stop_voice(struct snd_ali *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(struct snd_ali *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) < 0)
break;
currenttimer = inl(ALI_REG(codec, ALI_STIMER));
cpu_relax();
}
}
static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
{
u16 wval;
u16 count = 0;
u8 bval, R1 = 0, R2;
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(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
return;
}
for (count = 0; count <= 50000; count++) {
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(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
return;
}
if (R2 >= 0x0b && R2 <= 0x0e) {
wval = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
wval &= 0xe0f0;
wval |= (0x09 << 8) | 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 |= (0x0e << 8) | 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(struct snd_ali *codec)
{
u32 dwRate;
u8 bval;
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;
switch (bval) {
case 0: dwRate = 44100; break;
case 1: dwRate = 48000; break;
case 2: dwRate = 32000; break;
default: dwRate = 0; break;
}
return dwRate;
}
static void snd_ali_enable_spdif_in(struct snd_ali *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(struct snd_ali *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(struct snd_ali *codec, unsigned int rate)
{
unsigned char bVal;
unsigned int dwRate;
switch (rate) {
case 32000: dwRate = 0x300; break;
case 48000: dwRate = 0x200; break;
default: dwRate = 0; break;
}
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(struct snd_ali *codec)
{
unsigned short wVal;
unsigned char bVal;
struct pci_dev *pci_dev;
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(struct snd_ali *codec)
{
unsigned short wVal;
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(struct snd_ali *codec)
{
unsigned short wVal;
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(struct snd_ali *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(struct snd_ali *codec, int channel)
{
struct snd_ali_voice *pvoice;
struct snd_pcm_runtime *runtime;
struct snd_ali_channel_control *pchregs;
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 = 1U << (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 irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
{
struct snd_ali *codec = dev_id;
int channel;
unsigned int audio_int;
struct snd_ali_channel_control *pchregs;
if (codec == NULL || !codec->hw_initialized)
return IRQ_NONE;
audio_int = inl(ALI_REG(codec, ALI_MISCINT));
if (!audio_int)
return IRQ_NONE;
pchregs = &(codec->chregs);
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));
return IRQ_HANDLED;
}
static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
int type, int rec, int channel)
{
struct snd_ali_voice *pvoice;
int idx;
snd_ali_printk("alloc_voice: type=%d rec=%d\n", type, rec);
spin_lock_irq(&codec->voice_alloc);
if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
snd_ali_find_free_channel(codec,rec);
if (idx < 0) {
snd_printk(KERN_ERR "ali_alloc_voice: err.\n");
spin_unlock_irq(&codec->voice_alloc);
return NULL;
}
pvoice = &(codec->synth.voices[idx]);
pvoice->codec = codec;
pvoice->use = 1;
pvoice->pcm = 1;
pvoice->mode = rec;
spin_unlock_irq(&codec->voice_alloc);
return pvoice;
}
spin_unlock_irq(&codec->voice_alloc);
return NULL;
}
static void snd_ali_free_voice(struct snd_ali * codec,
struct snd_ali_voice *pvoice)
{
void (*private_free)(void *);
void *private_data;
snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
if (!pvoice->use)
return;
snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
spin_lock_irq(&codec->voice_alloc);
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_irq(&codec->voice_alloc);
if (private_free)
private_free(private_data);
}
static void snd_ali_clear_voices(struct snd_ali *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(struct snd_ali *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(struct snd_pcm_substream *substream)
{
unsigned int CTRL;
struct snd_pcm_runtime *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_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_substream *s;
unsigned int what, whati, capture_flag;
struct snd_ali_voice *pvoice, *evoice;
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_entry(s, substream) {
if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
pvoice = 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(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ali_voice *pvoice = runtime->private_data;
struct snd_ali_voice *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) {
evoice = snd_ali_alloc_voice(codec,
SNDRV_ALI_VOICE_TYPE_PCM,
0, -1);
if (!evoice)
return -ENOMEM;
pvoice->extra = evoice;
evoice->substream = substream;
}
} else {
if (evoice) {
snd_ali_free_voice(codec, evoice);
pvoice->extra = evoice = NULL;
}
}
return 0;
}
static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ali_voice *pvoice = runtime->private_data;
struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
snd_pcm_lib_free_pages(substream);
if (evoice) {
snd_ali_free_voice(codec, evoice);
pvoice->extra = NULL;
}
return 0;
}
static int snd_ali_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
static int snd_ali_hw_free(struct snd_pcm_substream *substream)
{
return snd_pcm_lib_free_pages(substream);
}
static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ali_voice *pvoice = runtime->private_data;
struct snd_ali_voice *evoice = pvoice->extra;
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_irq(&codec->reg_lock);
/* 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");
snd_ali_printk("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) {
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,
0x7f,
0x3ff,
CTRL,
EC);
}
spin_unlock_irq(&codec->reg_lock);
return 0;
}
static int snd_ali_prepare(struct snd_pcm_substream *substream)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ali_voice *pvoice = runtime->private_data;
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_irq(&codec->reg_lock);
snd_ali_printk("ali_prepare...\n");
snd_ali_enable_special_channel(codec,pvoice->number);
Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
/* Prepare capture intr channel */
if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
unsigned int rate;
spin_unlock_irq(&codec->reg_lock);
if (codec->revision != ALI_5451_V02)
return -1;
rate = snd_ali_get_spdif_in_rate(codec);
if (rate == 0) {
snd_printk(KERN_WARNING "ali_capture_preapre: "
"spdif rate detect err!\n");
rate = 48000;
}
spin_lock_irq(&codec->reg_lock);
bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
if (bValue & 0x10) {
outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
printk(KERN_WARNING "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_irq(&codec->reg_lock);
return 0;
}
static snd_pcm_uframes_t
snd_ali_playback_pointer(struct snd_pcm_substream *substream)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ali_voice *pvoice = 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_pointer(struct snd_pcm_substream *substream)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ali_voice *pvoice = runtime->private_data;
unsigned int cso;
spin_lock(&codec->reg_lock);
if (!pvoice->running) {
spin_unlock_irq(&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);
return cso;
}
static struct snd_pcm_hardware 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 struct snd_pcm_hardware 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(struct snd_pcm_runtime *runtime)
{
struct snd_ali_voice *pvoice = runtime->private_data;
struct snd_ali *codec;
if (pvoice) {
codec = pvoice->codec;
snd_ali_free_voice(pvoice->codec, pvoice);
}
}
static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
int channel, struct snd_pcm_hardware *phw)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_ali_voice *pvoice;
pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
channel);
if (!pvoice)
return -EAGAIN;
pvoice->substream = substream;
runtime->private_data = pvoice;
runtime->private_free = snd_ali_pcm_free_substream;
runtime->hw = *phw;
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_open(struct snd_pcm_substream *substream)
{
return snd_ali_open(substream, 0, -1, &snd_ali_playback);
}
static int snd_ali_capture_open(struct snd_pcm_substream *substream)
{
return snd_ali_open(substream, 1, -1, &snd_ali_capture);
}
static int snd_ali_playback_close(struct snd_pcm_substream *substream)
{
return 0;
}
static int snd_ali_close(struct snd_pcm_substream *substream)
{
struct snd_ali *codec = snd_pcm_substream_chip(substream);
struct snd_ali_voice *pvoice = substream->runtime->private_data;
snd_ali_disable_special_channel(codec,pvoice->number);
return 0;
}
static struct snd_pcm_ops snd_ali_playback_ops = {
.open = snd_ali_playback_open,
.close = snd_ali_playback_close,
.ioctl = snd_pcm_lib_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 struct snd_pcm_ops snd_ali_capture_ops = {
.open = snd_ali_capture_open,
.close = snd_ali_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_ali_hw_params,
.hw_free = snd_ali_hw_free,
.prepare = snd_ali_prepare,
.trigger = snd_ali_trigger,
.pointer = snd_ali_pointer,
};
/*
* Modem PCM
*/
static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_ali *chip = snd_pcm_substream_chip(substream);
unsigned int modem_num = chip->num_of_codecs - 1;
snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
params_rate(hw_params));
snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
return snd_ali_hw_params(substream, hw_params);
}
static struct snd_pcm_hardware snd_ali_modem =
{
.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_S16_LE,
.rates = (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
SNDRV_PCM_RATE_16000),
.rate_min = 8000,
.rate_max = 16000,
.channels_min = 1,
.channels_max = 1,
.buffer_bytes_max = (256*1024),
.period_bytes_min = 64,
.period_bytes_max = (256*1024),
.periods_min = 1,
.periods_max = 1024,
.fifo_size = 0,
};
static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
int channel)
{
static unsigned int rates[] = {8000, 9600, 12000, 16000};
static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};
int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
if (err)
return err;
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
}
static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
{
return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
}
static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
{
return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
}
static struct snd_pcm_ops snd_ali_modem_playback_ops = {
.open = snd_ali_modem_playback_open,
.close = snd_ali_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_ali_modem_hw_params,
.hw_free = snd_ali_hw_free,
.prepare = snd_ali_prepare,
.trigger = snd_ali_trigger,
.pointer = snd_ali_pointer,
};
static struct snd_pcm_ops snd_ali_modem_capture_ops = {
.open = snd_ali_modem_capture_open,
.close = snd_ali_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_ali_modem_hw_params,
.hw_free = snd_ali_hw_free,
.prepare = snd_ali_prepare,
.trigger = snd_ali_trigger,
.pointer = snd_ali_pointer,
};
struct ali_pcm_description {
char *name;
unsigned int playback_num;
unsigned int capture_num;
struct snd_pcm_ops *playback_ops;
struct snd_pcm_ops *capture_ops;
unsigned short class;
};
static void snd_ali_pcm_free(struct snd_pcm *pcm)
{
struct snd_ali *codec = pcm->private_data;
codec->pcm[pcm->device] = NULL;
}
static int __devinit snd_ali_pcm(struct snd_ali * codec, int device,
struct ali_pcm_description *desc)
{
struct snd_pcm *pcm;
int err;
err = snd_pcm_new(codec->card, desc->name, device,
desc->playback_num, desc->capture_num, &pcm);
if (err < 0) {
snd_printk(KERN_ERR "snd_ali_pcm: err called snd_pcm_new.\n");
return err;
}
pcm->private_data = codec;
pcm->private_free = snd_ali_pcm_free;
if (desc->playback_ops)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
desc->playback_ops);
if (desc->capture_ops)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
desc->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_class = desc->class;
pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
strcpy(pcm->name, desc->name);
codec->pcm[0] = pcm;
return 0;
}
static struct ali_pcm_description ali_pcms[] = {
{ .name = "ALI 5451",
.playback_num = ALI_CHANNELS,
.capture_num = 1,
.playback_ops = &snd_ali_playback_ops,
.capture_ops = &snd_ali_capture_ops
},
{ .name = "ALI 5451 modem",
.playback_num = 1,
.capture_num = 1,
.playback_ops = &snd_ali_modem_playback_ops,
.capture_ops = &snd_ali_modem_capture_ops,
.class = SNDRV_PCM_CLASS_MODEM
}
};
static int __devinit snd_ali_build_pcms(struct snd_ali *codec)
{
int i, err;
for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
err = snd_ali_pcm(codec, i, &ali_pcms[i]);
if (err < 0)
return err;
}
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}
#define snd_ali5451_spdif_info snd_ctl_boolean_mono_info
static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ali *codec = kcontrol->private_data;
unsigned int spdif_enable;
spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
spin_lock_irq(&codec->reg_lock);
switch (kcontrol->private_value) {
case 0:
spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
break;
case 1:
spdif_enable = ((codec->spdif_mask & 0x02) &&
(codec->spdif_mask & 0x04)) ? 1 : 0;
break;
case 2:
spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
break;
default:
break;
}
ucontrol->value.integer.value[0] = spdif_enable;
spin_unlock_irq(&codec->reg_lock);
return 0;
}
static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ali *codec = kcontrol->private_data;
unsigned int change = 0, spdif_enable = 0;
spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
spin_lock_irq(&codec->reg_lock);
switch (kcontrol->private_value) {
case 0:
change = (codec->spdif_mask & 0x02) ? 1 : 0;
change = change ^ spdif_enable;
if (change) {
if (spdif_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 ^ spdif_enable;
if (change && (codec->spdif_mask & 0x02)) {
if (spdif_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 ^ spdif_enable;
if (change) {
if (spdif_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_irq(&codec->reg_lock);
return change;
}
static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] __devinitdata = {
/* spdif aplayback switch */
/* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
/* spdif out to spdif channel */
ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
/* spdif in from spdif channel */
ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
};
static int __devinit snd_ali_mixer(struct snd_ali * codec)
{
struct snd_ac97_template ac97;
unsigned int idx;
int i, err;
static struct snd_ac97_bus_ops ops = {
.write = snd_ali_codec_write,
.read = snd_ali_codec_read,
};
err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
if (err < 0)
return err;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = codec;
for (i = 0; i < codec->num_of_codecs; i++) {
ac97.num = i;
err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
if (err < 0) {
snd_printk(KERN_ERR
"ali mixer %d creating error.\n", i);
if (i == 0)
return err;
codec->num_of_codecs = 1;
break;
}
}
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(struct pci_dev *pci, pm_message_t state)
{
struct snd_card *card = pci_get_drvdata(pci);
struct snd_ali *chip = card->private_data;
struct snd_ali_image *im;
int i, j;
im = chip->image;
if (!im)
return 0;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
for (i = 0; i < chip->num_of_codecs; i++) {
snd_pcm_suspend_all(chip->pcm[i]);
snd_ac97_suspend(chip->ac97[i]);
}
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(pci);
pci_save_state(pci);
pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
static int ali_resume(struct pci_dev *pci)
{
struct snd_card *card = pci_get_drvdata(pci);
struct snd_ali *chip = card->private_data;
struct snd_ali_image *im;
int i, j;
im = chip->image;
if (!im)
return 0;
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
if (pci_enable_device(pci) < 0) {
printk(KERN_ERR "ali5451: pci_enable_device failed, "
"disabling device\n");
snd_card_disconnect(card);
return -EIO;
}
pci_set_master(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);
for (i = 0 ; i < chip->num_of_codecs; i++)
snd_ac97_resume(chip->ac97[i]);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
#endif /* CONFIG_PM */
static int snd_ali_free(struct snd_ali * codec)
{
if (codec->hw_initialized)
snd_ali_disable_address_interrupt(codec);
if (codec->irq >= 0)
free_irq(codec->irq, codec);
if (codec->port)
pci_release_regions(codec->pci);
pci_disable_device(codec->pci);
#ifdef CONFIG_PM
kfree(codec->image);
#endif
pci_dev_put(codec->pci_m1533);
pci_dev_put(codec->pci_m7101);
kfree(codec);
return 0;
}
static int snd_ali_chip_init(struct snd_ali *codec)
{
unsigned int legacy;
unsigned char temp;
struct pci_dev *pci_dev;
snd_ali_printk("chip initializing ... \n");
if (snd_ali_reset_5451(codec)) {
snd_printk(KERN_ERR "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;
}
codec->num_of_codecs = 1;
/* secondary codec - modem */
if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
codec->num_of_codecs++;
outl(inl(ALI_REG(codec, ALI_SCTRL)) |
(ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
ALI_SCTRL_LINE_OUT_EN),
ALI_REG(codec, ALI_SCTRL));
}
snd_ali_printk("chip initialize succeed.\n");
return 0;
}
/* proc for register dump */
static void snd_ali_proc_read(struct snd_info_entry *entry,
struct snd_info_buffer *buf)
{
struct snd_ali *codec = entry->private_data;
int i;
for (i = 0; i < 256 ; i+= 4)
snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
}
static void __devinit snd_ali_proc_init(struct snd_ali *codec)
{
struct snd_info_entry *entry;
if (!snd_card_proc_new(codec->card, "ali5451", &entry))
snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
}
static int __devinit snd_ali_resources(struct snd_ali *codec)
{
int err;
snd_ali_printk("resources allocation ...\n");
err = pci_request_regions(codec->pci, "ALI 5451");
if (err < 0)
return err;
codec->port = pci_resource_start(codec->pci, 0);
if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
IRQF_SHARED, KBUILD_MODNAME, codec)) {
snd_printk(KERN_ERR "Unable to request irq.\n");
return -EBUSY;
}
codec->irq = codec->pci->irq;
snd_ali_printk("resources allocated.\n");
return 0;
}
static int snd_ali_dev_free(struct snd_device *device)
{
struct snd_ali *codec = device->device_data;
snd_ali_free(codec);
return 0;
}
static int __devinit snd_ali_create(struct snd_card *card,
struct pci_dev *pci,
int pcm_streams,
int spdif_support,
struct snd_ali ** r_ali)
{
struct snd_ali *codec;
int i, err;
unsigned short cmdw;
static struct snd_device_ops ops = {
.dev_free = snd_ali_dev_free,
};
*r_ali = NULL;
snd_ali_printk("creating ...\n");
/* enable PCI device */
err = pci_enable_device(pci);
if (err < 0)
return err;
/* check, if we can restrict PCI DMA transfers to 31 bits */
if (pci_set_dma_mask(pci, DMA_BIT_MASK(31)) < 0 ||
pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(31)) < 0) {
snd_printk(KERN_ERR "architecture does not support "
"31bit PCI busmaster DMA\n");
pci_disable_device(pci);
return -ENXIO;
}
codec = kzalloc(sizeof(*codec), GFP_KERNEL);
if (!codec) {
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;
codec->revision = pci->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 */
codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
if (!codec->pci_m1533) {
snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
snd_ali_free(codec);
return -ENODEV;
}
/* M7101: power management */
codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
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");
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
if (err < 0) {
snd_ali_free(codec);
return err;
}
snd_card_set_dev(card, &pci->dev);
/* initialise synth voices*/
for (i = 0; i < ALI_CHANNELS; i++)
codec->synth.voices[i].number = i;
err = snd_ali_chip_init(codec);
if (err < 0) {
snd_printk(KERN_ERR "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");
#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)
{
struct snd_card *card;
struct snd_ali *codec;
int err;
snd_ali_printk("probe ...\n");
err = snd_card_create(index, id, THIS_MODULE, 0, &card);
if (err < 0)
return err;
err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
if (err < 0)
goto error;
card->private_data = codec;
snd_ali_printk("mixer building ...\n");
err = snd_ali_mixer(codec);
if (err < 0)
goto error;
snd_ali_printk("pcm building ...\n");
err = snd_ali_build_pcms(codec);
if (err < 0)
goto error;
snd_ali_proc_init(codec);
strcpy(card->driver, "ALI5451");
strcpy(card->shortname, "ALI 5451");
sprintf(card->longname, "%s at 0x%lx, irq %i",
card->shortname, codec->port, codec->irq);
snd_ali_printk("register card.\n");
err = snd_card_register(card);
if (err < 0)
goto error;
pci_set_drvdata(pci, card);
return 0;
error:
snd_card_free(card);
return err;
}
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 = KBUILD_MODNAME,
.id_table = snd_ali_ids,
.probe = snd_ali_probe,
.remove = __devexit_p(snd_ali_remove),
#ifdef CONFIG_PM
.suspend = ali_suspend,
.resume = ali_resume,
#endif
};
static int __init alsa_card_ali_init(void)
{
return pci_register_driver(&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)