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linux/sound/pci/ali5451/ali5451.c
Julia Lawall 4b3be6afa4 ALSA: sound: Move dereference after NULL test and drop unnecessary NULL tests 
In pcm.c, if the NULL test on pcm is needed, then the dereference should be
after the NULL test.

In dummy.c and ali5451.c, the context of the calls to
snd_card_dummy_new_mixer and snd_ali_free_voice show that dummy and pvoice,
respectively cannot be NULL.

A simplified version of the semantic match that detects this problem is as
follows (http://coccinelle.lip6.fr/):

// <smpl>
@match exists@
expression x, E;
identifier fld;
@@

* x->fld
  ... when != \(x = E\|&x\)
* x == NULL
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-10-30 12:01:27 +01:00

2320 lines
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/*
* 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/moduleparam.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 int 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 int 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 struct pci_device_id 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, "ALI 5451", 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 = "ALI 5451",
.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)
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