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kernel / pub / scm / linux / kernel / git / joro / linux / dd56376dcd8c94342857257aa34a5720baeb807a / . / sound / pci / via686.c
blob: 9378a6adf003a0babb4766da10b1334e12c6cfa8 [file] [log] [blame]
/*
* ALSA driver for VIA VT82C686A (South Bridge)
*
* Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This 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 License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <sound/driver.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/info.h>
#include <sound/ac97_codec.h>
#include <sound/mpu401.h>
#define SNDRV_GET_ID
#include <sound/initval.h>
EXPORT_NO_SYMBOLS;
MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("VIA VT82C686A");
MODULE_LICENSE("GPL");
MODULE_CLASSES("{sound}");
MODULE_DEVICES("{{VIA,VT82C686A,pci},{VIA,VT82C686B}}");
static int snd_index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *snd_id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int snd_enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static long snd_mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
static int snd_ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 48000};
MODULE_PARM(snd_index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(snd_index, "Index value for VIA 82C686A bridge.");
MODULE_PARM_SYNTAX(snd_index, SNDRV_INDEX_DESC);
MODULE_PARM(snd_id, "1-" __MODULE_STRING(SNDRV_CARDS) "s");
MODULE_PARM_DESC(snd_id, "ID string for VIA 82C686A bridge.");
MODULE_PARM_SYNTAX(snd_id, SNDRV_ID_DESC);
MODULE_PARM(snd_enable, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
MODULE_PARM_DESC(snd_enable, "Enable audio part of VIA 82C686A bridge.");
MODULE_PARM_SYNTAX(snd_enable, SNDRV_ENABLE_DESC);
MODULE_PARM(snd_mpu_port, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
MODULE_PARM_DESC(snd_mpu_port, "MPU-401 port.");
MODULE_PARM_SYNTAX(snd_mpu_port, SNDRV_PORT_DESC);
MODULE_PARM(snd_ac97_clock, "1-" __MODULE_STRING(SNDRV_CARDS) "l");
MODULE_PARM_DESC(snd_ac97_clock, "AC'97 codec clock (default 48000Hz).");
MODULE_PARM_SYNTAX(snd_ac97_clock, SNDRV_ENABLED ",default:48000");
/*
* Direct registers
*/
#ifndef PCI_DEVICE_ID_VIA_82C686_5
#define PCI_DEVICE_ID_VIA_82C686_5 0x3058
#endif
#define VIAREG(via, x) ((via)->port + VIA_REG_##x)
/* offsets */
#define VIA_REG_OFFSET_STATUS 0x00 /* byte - channel status */
#define VIA_REG_STAT_ACTIVE 0x80 /* RO */
#define VIA_REG_STAT_PAUSED 0x40 /* RO */
#define VIA_REG_STAT_TRIGGER_QUEUED 0x08 /* RO */
#define VIA_REG_STAT_STOPPED 0x04 /* RWC */
#define VIA_REG_STAT_EOL 0x02 /* RWC */
#define VIA_REG_STAT_FLAG 0x01 /* RWC */
#define VIA_REG_OFFSET_CONTROL 0x01 /* byte - channel control */
#define VIA_REG_CTRL_START 0x80 /* WO */
#define VIA_REG_CTRL_TERMINATE 0x40 /* WO */
#define VIA_REG_CTRL_PAUSE 0x08 /* RW */
#define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
#define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type */
#define VIA_REG_TYPE_AUTOSTART 0x80 /* RW - autostart at EOL */
#define VIA_REG_TYPE_16BIT 0x20 /* RW */
#define VIA_REG_TYPE_STEREO 0x10 /* RW */
#define VIA_REG_TYPE_INT_LLINE 0x00
#define VIA_REG_TYPE_INT_LSAMPLE 0x04
#define VIA_REG_TYPE_INT_LESSONE 0x08
#define VIA_REG_TYPE_INT_MASK 0x0c
#define VIA_REG_TYPE_INT_EOL 0x02
#define VIA_REG_TYPE_INT_FLAG 0x01
#define VIA_REG_OFFSET_TABLE_PTR 0x04 /* dword - channel table pointer */
#define VIA_REG_OFFSET_CURR_PTR 0x04 /* dword - channel current pointer */
#define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count */
/* playback block */
#define VIA_REG_PLAYBACK_STATUS 0x00 /* byte - channel status */
#define VIA_REG_PLAYBACK_CONTROL 0x01 /* byte - channel control */
#define VIA_REG_PLAYBACK_TYPE 0x02 /* byte - channel type */
#define VIA_REG_PLAYBACK_TABLE_PTR 0x04 /* dword - channel table pointer */
#define VIA_REG_PLAYBACK_CURR_PTR 0x04 /* dword - channel current pointer */
#define VIA_REG_PLAYBACK_CURR_COUNT 0x0c /* dword - channel current count */
/* capture block */
#define VIA_REG_CAPTURE_STATUS 0x10 /* byte - channel status */
#define VIA_REG_CAPTURE_CONTROL 0x11 /* byte - channel control */
#define VIA_REG_CAPTURE_TYPE 0x12 /* byte - channel type */
#define VIA_REG_CAPTURE_TABLE_PTR 0x14 /* dword - channel table pointer */
#define VIA_REG_CAPTURE_CURR_PTR 0x14 /* dword - channel current pointer */
#define VIA_REG_CAPTURE_CURR_COUNT 0x1c /* dword - channel current count */
/* FM block */
#define VIA_REG_FM_STATUS 0x20 /* byte - channel status */
#define VIA_REG_FM_CONTROL 0x21 /* byte - channel control */
#define VIA_REG_FM_TYPE 0x22 /* byte - channel type */
#define VIA_REG_FM_TABLE_PTR 0x24 /* dword - channel table pointer */
#define VIA_REG_FM_CURR_PTR 0x24 /* dword - channel current pointer */
#define VIA_REG_FM_CURR_COUNT 0x2c /* dword - channel current count */
/* AC'97 */
#define VIA_REG_AC97 0x80 /* dword */
#define VIA_REG_AC97_CODEC_ID_MASK (3<<30)
#define VIA_REG_AC97_CODEC_ID_SHIFT 30
#define VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
#define VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
#define VIA_REG_AC97_SECONDARY_VALID (1<<27)
#define VIA_REG_AC97_PRIMARY_VALID (1<<25)
#define VIA_REG_AC97_BUSY (1<<24)
#define VIA_REG_AC97_READ (1<<23)
#define VIA_REG_AC97_CMD_SHIFT 16
#define VIA_REG_AC97_CMD_MASK 0x7e
#define VIA_REG_AC97_DATA_SHIFT 0
#define VIA_REG_AC97_DATA_MASK 0xffff
#define VIA_REG_SGD_SHADOW 0x84 /* dword */
/*
*
*/
#define VIA_MAX_FRAGS 32
/*
*
*/
typedef struct {
unsigned long reg_offset;
unsigned int *table;
dma_addr_t table_addr;
snd_pcm_substream_t *substream;
dma_addr_t physbuf;
unsigned int size;
unsigned int fragsize;
unsigned int frags;
unsigned int lastptr;
unsigned int lastcount;
} viadev_t;
typedef struct _snd_via686a via686a_t;
#define chip_t via686a_t
struct _snd_via686a {
int irq;
unsigned long port;
struct resource *res_port;
unsigned char revision;
unsigned char old_legacy;
unsigned char old_legacy_cfg;
struct pci_dev *pci;
snd_card_t *card;
snd_pcm_t *pcm;
snd_pcm_t *pcm_fm;
viadev_t playback;
viadev_t capture;
viadev_t playback_fm;
snd_rawmidi_t *rmidi;
ac97_t *ac97;
unsigned int ac97_clock;
unsigned int ac97_secondary; /* secondary AC'97 codec is present */
spinlock_t reg_lock;
spinlock_t ac97_lock;
snd_info_entry_t *proc_entry;
void *tables;
dma_addr_t tables_addr;
};
static struct pci_device_id snd_via686a_ids[] __devinitdata = {
{ 0x1106, 0x3058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, }, /* 686A */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, snd_via686a_ids);
/*
* Basic I/O
*/
static inline unsigned int snd_via686a_codec_xread(via686a_t *chip)
{
return inl(VIAREG(chip, AC97));
}
static inline void snd_via686a_codec_xwrite(via686a_t *chip, unsigned int val)
{
outl(val, VIAREG(chip, AC97));
}
static int snd_via686a_codec_ready(via686a_t *chip, int secondary)
{
unsigned int timeout = 1000; /* 1ms */
unsigned int val;
while (timeout-- > 0) {
udelay(1);
if (!((val = snd_via686a_codec_xread(chip)) & VIA_REG_AC97_BUSY))
return val & 0xffff;
}
snd_printk("codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_via686a_codec_xread(chip));
return -EIO;
}
static int snd_via686a_codec_valid(via686a_t *chip, int secondary)
{
unsigned int timeout = 1000; /* 1ms */
unsigned int val;
unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
VIA_REG_AC97_SECONDARY_VALID;
while (timeout-- > 0) {
udelay(1);
if ((val = snd_via686a_codec_xread(chip)) & stat)
return val & 0xffff;
}
snd_printk("codec_valid: codec %i is not valid [0x%x]\n", secondary, snd_via686a_codec_xread(chip));
return -EIO;
}
static void snd_via686a_codec_write(ac97_t *ac97,
unsigned short reg,
unsigned short val)
{
via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return);
unsigned int xval;
xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
xval |= reg << VIA_REG_AC97_CMD_SHIFT;
xval |= val << VIA_REG_AC97_DATA_SHIFT;
spin_lock(&chip->ac97_lock);
snd_via686a_codec_xwrite(chip, xval);
snd_via686a_codec_ready(chip, ac97->num);
spin_unlock(&chip->ac97_lock);
}
static unsigned short snd_via686a_codec_read(ac97_t *ac97, unsigned short reg)
{
via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return ~0);
unsigned int xval, val = 0xffff;
int again = 0;
xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
xval = (!ac97->num ? VIA_REG_AC97_PRIMARY_VALID : VIA_REG_AC97_SECONDARY_VALID);
xval |= VIA_REG_AC97_READ;
xval |= reg << VIA_REG_AC97_CMD_SHIFT;
spin_lock(&chip->ac97_lock);
while (1) {
if (again++ > 3) {
spin_unlock(&chip->ac97_lock);
return 0xffff;
}
snd_via686a_codec_xwrite(chip, xval);
if (snd_via686a_codec_ready(chip, ac97->num) < 0)
continue;
if (snd_via686a_codec_valid(chip, ac97->num) >= 0) {
udelay(25);
val = snd_via686a_codec_xread(chip);
break;
}
}
spin_unlock(&chip->ac97_lock);
return val & 0xffff;
}
#if 0
static void snd_via686a_channel_print(via686a_t *chip, viadev_t *viadev)
{
unsigned long port = chip->port + viadev->reg_offset;
printk("[0x%x] status = 0x%x, control = 0x%x, type = 0x%x, ptr = 0x%x, count = 0x%x\n",
port,
inb(port + VIA_REG_OFFSET_STATUS),
inb(port + VIA_REG_OFFSET_CONTROL),
inb(port + VIA_REG_OFFSET_TYPE),
inl(port + VIA_REG_OFFSET_CURR_PTR),
inl(port + VIA_REG_OFFSET_CURR_COUNT));
}
#endif
static void snd_via686a_channel_reset(via686a_t *chip, viadev_t *viadev)
{
unsigned long port = chip->port + viadev->reg_offset;
outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET, port + VIA_REG_OFFSET_CONTROL);
udelay(50);
outb(0x00, port + VIA_REG_OFFSET_CONTROL);
outb(0xff, port + VIA_REG_OFFSET_STATUS);
outb(0x00, port + VIA_REG_OFFSET_TYPE);
outl(0, port + VIA_REG_OFFSET_CURR_PTR);
}
static int snd_via686a_trigger(via686a_t *chip, viadev_t *viadev, int cmd)
{
unsigned char val = 0;
unsigned long port = chip->port + viadev->reg_offset;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
val = VIA_REG_CTRL_START;
break;
case SNDRV_PCM_TRIGGER_STOP:
val = VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
val = VIA_REG_CTRL_PAUSE;
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
val = 0;
break;
default:
return -EINVAL;
}
outb(val, port + VIA_REG_OFFSET_CONTROL);
if (cmd == SNDRV_PCM_TRIGGER_STOP)
snd_via686a_channel_reset(chip, viadev);
return 0;
}
static void snd_via686a_setup_periods(via686a_t *chip, viadev_t *viadev,
snd_pcm_substream_t *substream)
{
snd_pcm_runtime_t *runtime = substream->runtime;
int idx, frags;
unsigned int *table = viadev->table;
unsigned long port = chip->port + viadev->reg_offset;
viadev->physbuf = runtime->dma_addr;
viadev->size = snd_pcm_lib_buffer_bytes(substream);
viadev->fragsize = snd_pcm_lib_period_bytes(substream);
viadev->frags = runtime->periods;
viadev->lastptr = ~0;
viadev->lastcount = ~0;
snd_via686a_channel_reset(chip, viadev);
outl(viadev->table_addr, port + VIA_REG_OFFSET_TABLE_PTR);
outb(VIA_REG_TYPE_AUTOSTART |
(runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
(runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
VIA_REG_TYPE_INT_EOL |
VIA_REG_TYPE_INT_FLAG, port + VIA_REG_OFFSET_TYPE);
if (viadev->size == viadev->fragsize) {
table[0] = cpu_to_le32(viadev->physbuf);
table[1] = cpu_to_le32(0xc0000000 | /* EOL + flag */
viadev->fragsize);
} else {
frags = viadev->size / viadev->fragsize;
for (idx = 0; idx < frags - 1; idx++) {
table[(idx << 1) + 0] = cpu_to_le32(viadev->physbuf + (idx * viadev->fragsize));
table[(idx << 1) + 1] = cpu_to_le32(0x40000000 | /* flag */
viadev->fragsize);
}
table[((frags-1) << 1) + 0] = cpu_to_le32(viadev->physbuf + ((frags-1) * viadev->fragsize));
table[((frags-1) << 1) + 1] = cpu_to_le32(0x80000000 | /* EOL */
viadev->fragsize);
}
}
/*
* Interrupt handler
*/
static inline void snd_via686a_update(via686a_t *chip, viadev_t *viadev)
{
snd_pcm_period_elapsed(viadev->substream);
outb(VIA_REG_STAT_FLAG | VIA_REG_STAT_EOL, VIAREG(chip, OFFSET_STATUS) + viadev->reg_offset);
}
static void snd_via686a_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
via686a_t *chip = snd_magic_cast(via686a_t, dev_id, return);
unsigned int status;
status = inl(VIAREG(chip, SGD_SHADOW));
if ((status & 0x00000077) == 0) {
if (chip->rmidi != NULL) {
snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
}
return;
}
if (inb(VIAREG(chip, PLAYBACK_STATUS)) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG))
snd_via686a_update(chip, &chip->playback);
if (inb(VIAREG(chip, FM_STATUS)) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG))
snd_via686a_update(chip, &chip->playback_fm);
if (inb(VIAREG(chip, CAPTURE_STATUS)) & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG))
snd_via686a_update(chip, &chip->capture);
}
/*
* PCM part
*/
static int snd_via686a_playback_trigger(snd_pcm_substream_t * substream,
int cmd)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
return snd_via686a_trigger(chip, &chip->playback, cmd);
}
static int snd_via686a_capture_trigger(snd_pcm_substream_t * substream,
int cmd)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
return snd_via686a_trigger(chip, &chip->capture, cmd);
}
static int snd_via686a_hw_params(snd_pcm_substream_t * substream,
snd_pcm_hw_params_t * hw_params)
{
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
}
static int snd_via686a_hw_free(snd_pcm_substream_t * substream)
{
return snd_pcm_lib_free_pages(substream);
}
static int snd_via686a_playback_prepare(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
snd_via686a_setup_periods(chip, &chip->playback, substream);
return 0;
}
static int snd_via686a_capture_prepare(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
snd_via686a_setup_periods(chip, &chip->capture, substream);
return 0;
}
static inline unsigned int snd_via686a_cur_ptr(via686a_t *chip, viadev_t *viadev)
{
unsigned int val, ptr, count;
// unsigned int tmp;
ptr = inl(VIAREG(chip, OFFSET_CURR_PTR) + viadev->reg_offset);
count = inl(VIAREG(chip, OFFSET_CURR_COUNT) + viadev->reg_offset);
if (ptr == viadev->lastptr && count > viadev->lastcount)
ptr += 8;
if (!(inb(VIAREG(chip, OFFSET_STATUS) + viadev->reg_offset) & VIA_REG_STAT_ACTIVE))
return 0;
// tmp =
val = (((unsigned int)(ptr - viadev->table_addr) / 8) - 1) % viadev->frags;
val *= viadev->fragsize;
val += viadev->fragsize - count;
viadev->lastptr = ptr;
viadev->lastcount = count;
// printk("pointer: ptr = 0x%x (%i), count = 0x%x, val = 0x%x\n", ptr, tmp, count, val);
return val;
}
static snd_pcm_uframes_t snd_via686a_playback_pointer(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
return bytes_to_frames(substream->runtime, snd_via686a_cur_ptr(chip, &chip->playback));
}
static snd_pcm_uframes_t snd_via686a_capture_pointer(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
return bytes_to_frames(substream->runtime, snd_via686a_cur_ptr(chip, &chip->capture));
}
static snd_pcm_hardware_t snd_via686a_playback =
{
info: (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE),
formats: SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
rates: 0,
rate_min: 8000,
rate_max: 48000,
channels_min: 1,
channels_max: 2,
buffer_bytes_max: 128 * 1024,
period_bytes_min: 32,
period_bytes_max: 128 * 1024,
periods_min: 1,
periods_max: VIA_MAX_FRAGS,
fifo_size: 0,
};
static snd_pcm_hardware_t snd_via686a_capture =
{
info: (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID),
formats: SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
rates: 0,
rate_min: 8000,
rate_max: 48000,
channels_min: 1,
channels_max: 2,
buffer_bytes_max: 128 * 1024,
period_bytes_min: 32,
period_bytes_max: 128 * 1024,
periods_min: 1,
periods_max: VIA_MAX_FRAGS,
fifo_size: 0,
};
static int snd_via686a_playback_open(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
int err;
chip->playback.substream = substream;
runtime->hw = snd_via686a_playback;
runtime->hw.rates = chip->ac97->rates_front_dac;
if (!(runtime->hw.rates & SNDRV_PCM_RATE_8000))
runtime->hw.rate_min = 48000;
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
return 0;
}
static int snd_via686a_capture_open(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
int err;
chip->capture.substream = substream;
runtime->hw = snd_via686a_capture;
runtime->hw.rates = chip->ac97->rates_adc;
if (!(runtime->hw.rates & SNDRV_PCM_RATE_8000))
runtime->hw.rate_min = 48000;
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
return 0;
}
static int snd_via686a_playback_close(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
chip->playback.substream = NULL;
/* disable DAC power */
snd_ac97_update_bits(chip->ac97, AC97_POWERDOWN, 0x0200, 0x0200);
return 0;
}
static int snd_via686a_capture_close(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
chip->capture.substream = NULL;
/* disable ADC power */
snd_ac97_update_bits(chip->ac97, AC97_POWERDOWN, 0x0100, 0x0100);
return 0;
}
static snd_pcm_ops_t snd_via686a_playback_ops = {
open: snd_via686a_playback_open,
close: snd_via686a_playback_close,
ioctl: snd_pcm_lib_ioctl,
hw_params: snd_via686a_hw_params,
hw_free: snd_via686a_hw_free,
prepare: snd_via686a_playback_prepare,
trigger: snd_via686a_playback_trigger,
pointer: snd_via686a_playback_pointer,
};
static snd_pcm_ops_t snd_via686a_capture_ops = {
open: snd_via686a_capture_open,
close: snd_via686a_capture_close,
ioctl: snd_pcm_lib_ioctl,
hw_params: snd_via686a_hw_params,
hw_free: snd_via686a_hw_free,
prepare: snd_via686a_capture_prepare,
trigger: snd_via686a_capture_trigger,
pointer: snd_via686a_capture_pointer,
};
static void snd_via686a_pcm_free(snd_pcm_t *pcm)
{
via686a_t *chip = snd_magic_cast(via686a_t, pcm->private_data, return);
chip->pcm = NULL;
snd_pcm_lib_preallocate_free_for_all(pcm);
}
static int __devinit snd_via686a_pcm(via686a_t *chip, int device, snd_pcm_t ** rpcm)
{
snd_pcm_t *pcm;
int err;
if (rpcm)
*rpcm = NULL;
err = snd_pcm_new(chip->card, "VIA 82C686A", device, 1, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686a_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686a_capture_ops);
pcm->private_data = chip;
pcm->private_free = snd_via686a_pcm_free;
pcm->info_flags = 0;
strcpy(pcm->name, "VIA 82C686A");
chip->pcm = pcm;
snd_pcm_lib_preallocate_pci_pages_for_all(chip->pci, pcm, 64*1024, 128*1024);
if (rpcm)
*rpcm = NULL;
return 0;
}
#if 0
/*
* PCM code - FM channel
*/
static int snd_via686a_playback_fm_ioctl(snd_pcm_substream_t * substream,
unsigned int cmd,
void *arg)
{
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
static int snd_via686a_playback_fm_trigger(snd_pcm_substream_t * substream,
int cmd)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
return snd_via686a_trigger(chip, &chip->playback_fm, cmd);
}
static int snd_via686a_playback_fm_prepare(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
snd_via686a_setup_periods(chip, &chip->playback_fm, substream);
return 0;
}
static snd_pcm_uframes_t snd_via686a_playback_fm_pointer(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
return bytes_to_frames(substream->runtime, snd_via686a_cur_ptr(chip, &chip->playback_fm));
}
static snd_pcm_hardware_t snd_via686a_playback_fm =
{
info: (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE),
formats: SNDRV_PCM_FMTBIT_S16_LE,
rates: SNDRV_PCM_RATE_KNOT,
rate_min: 24000,
rate_max: 24000,
channels_min: 2,
channels_max: 2,
buffer_bytes_max: 128 * 1024,
period_bytes_min: 32,
period_bytes_max: 128 * 1024,
periods_min: 1,
periods_max: VIA_MAX_FRAGS,
fifo_size: 0,
};
static int snd_via686a_playback_fm_open(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
int err;
if ((runtime->dma_area = snd_malloc_pci_pages_fallback(chip->pci, chip->dma_fm_size, &runtime->dma_addr, &runtime->dma_bytes)) == NULL)
return -ENOMEM;
chip->playback_fm.substream = substream;
runtime->hw = snd_via686a_playback_fm;
#if 0
runtime->hw.rates = chip->ac97->rates_front_dac;
if (!(runtime->hw.rates & SNDRV_PCM_RATE_8000))
runtime->hw.min_rate = 48000;
#endif
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
return 0;
}
static int snd_via686a_playback_fm_close(snd_pcm_substream_t * substream)
{
via686a_t *chip = snd_pcm_substream_chip(substream);
snd_pcm_runtime_t *runtime = substream->runtime;
chip->playback_fm.substream = NULL;
snd_free_pci_pages(chip->pci, runtime->dma_bytes, runtime->dma_area, runtime->dma_addr);
/* disable DAC power */
snd_ac97_update_bits(chip->ac97, AC97_POWERDOWN, 0x0200, 0x0200);
return 0;
}
static snd_pcm_ops_t snd_via686a_playback_fm_ops = {
open: snd_via686a_playback_fm_open,
close: snd_via686a_playback_fm_close,
ioctl: snd_pcm_lib_ioctl,
prepare: snd_via686a_playback_fm_prepare,
trigger: snd_via686a_playback_fm_trigger,
pointer: snd_via686a_playback_fm_pointer,
};
static void snd_via686a_pcm_fm_free(void *private_data)
{
via686a_t *chip = snd_magic_cast(via686a_t, private_data, return);
chip->pcm_fm = NULL;
snd_pcm_lib_preallocate_pci_free_for_all(ensoniq->pci, pcm);
}
static int __devinit snd_via686a_pcm_fm(via686a_t *chip, int device, snd_pcm_t ** rpcm)
{
snd_pcm_t *pcm;
int err;
if (rpcm)
*rpcm = NULL;
err = snd_pcm_new(chip->card, "VIA 82C686A - FM DAC", device, 1, 0, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686a_playback_fm_ops);
pcm->private_data = chip;
pcm->private_free = snd_via686a_pcm_fm_free;
pcm->info_flags = 0;
strcpy(pcm->name, "VIA 82C686A - FM DAC");
snd_pcm_add_buffer_bytes_controls(pcm);
snd_pcm_lib_preallocate_pci_pages_for_all(chip->pci, pcm, 64*1024);
chip->pcm_fm = pcm;
if (rpcm)
*rpcm = NULL;
return 0;
}
#endif
/*
* Mixer part
*/
static void snd_via686a_codec_init(ac97_t *ac97)
{
// via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return);
/* disable DAC & ADC power */
snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x0300, 0x0300);
/* disable center DAC/surround DAC/LFE DAC/MIC ADC */
snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, 0xe800, 0xe800);
}
static void snd_via686a_mixer_free_ac97(ac97_t *ac97)
{
via686a_t *chip = snd_magic_cast(via686a_t, ac97->private_data, return);
chip->ac97 = NULL;
}
static int __devinit snd_via686a_mixer(via686a_t *chip)
{
ac97_t ac97;
int err;
memset(&ac97, 0, sizeof(ac97));
ac97.write = snd_via686a_codec_write;
ac97.read = snd_via686a_codec_read;
ac97.init = snd_via686a_codec_init;
ac97.private_data = chip;
ac97.private_free = snd_via686a_mixer_free_ac97;
ac97.clock = chip->ac97_clock;
if ((err = snd_ac97_mixer(chip->card, &ac97, &chip->ac97)) < 0)
return err;
return 0;
}
/*
* joystick
*/
static int snd_via686a_joystick_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int snd_via686a_joystick_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via686a_t *chip = snd_kcontrol_chip(kcontrol);
u16 val;
pci_read_config_word(chip->pci, 0x42, &val);
ucontrol->value.integer.value[0] = (val & 0x08) ? 1 : 0;
return 0;
}
static int snd_via686a_joystick_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via686a_t *chip = snd_kcontrol_chip(kcontrol);
u16 val, oval;
pci_read_config_word(chip->pci, 0x42, &oval);
val = oval & ~0x08;
if (ucontrol->value.integer.value[0])
val |= 0x08;
if (val != oval) {
pci_write_config_word(chip->pci, 0x42, val);
return 1;
}
return 0;
}
static snd_kcontrol_new_t snd_via686a_joystick_control __devinitdata = {
name: "Joystick",
iface: SNDRV_CTL_ELEM_IFACE_CARD,
info: snd_via686a_joystick_info,
get: snd_via686a_joystick_get,
put: snd_via686a_joystick_put,
};
/*
*
*/
static int __devinit snd_via686a_chip_init(via686a_t *chip)
{
ac97_t ac97;
unsigned int val;
int max_count;
unsigned char pval;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;
#if 0 /* broken on K7M? */
/* disable all legacy ports */
pci_write_config_byte(chip->pci, 0x42, 0);
#endif
/* deassert ACLink reset, force SYNC */
pci_write_config_byte(chip->pci, 0x41, 0xe0);
udelay(100);
pci_write_config_byte(chip->pci, 0x41, 0x00);
udelay(100);
/* ACLink on, deassert ACLink reset, VSR, SGD data out */
/* note - FM data out has trouble with non VRA codecs !! */
pci_write_config_byte(chip->pci, 0x41, 0xcc);
udelay(100);
/* wait until codec ready */
max_count = ((3 * HZ) / 4) + 1;
do {
pci_read_config_byte(chip->pci, 0x40, &pval);
if (pval & 0x01) /* primary codec ready */
break;
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
} while (--max_count > 0);
if ((val = snd_via686a_codec_xread(chip)) & VIA_REG_AC97_BUSY)
snd_printk("AC'97 codec is not ready [0x%x]\n", val);
/* and then reset codec.. */
snd_via686a_codec_write(&ac97, AC97_RESET, 0x0000);
/* check the primary codec */
snd_via686a_codec_xwrite(chip, VIA_REG_AC97_READ |
VIA_REG_AC97_PRIMARY_VALID |
(VIA_REG_AC97_CODEC_ID_PRIMARY << VIA_REG_AC97_CODEC_ID_SHIFT));
max_count = ((3 * HZ) / 4) + 1;
do {
if ((val = snd_via686a_codec_xread(chip)) & VIA_REG_AC97_PRIMARY_VALID)
goto __ac97_ok1;
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
} while (--max_count > 0);
snd_printk("Primary AC'97 codec is not valid [0x%x]\n", val);
__ac97_ok1:
#if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
snd_via686a_codec_xwrite(chip, VIA_REG_AC97_READ |
VIA_REG_AC97_SECONDARY_VALID |
(VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
max_count = ((3 * HZ) / 4) + 1;
snd_via686a_codec_xwrite(chip, VIA_REG_AC97_READ |
VIA_REG_AC97_SECONDARY_VALID |
(VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
do {
if ((val = snd_via686a_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
chip->ac97_secondary = 1;
goto __ac97_ok2;
}
set_current_state(TASK_INTERRUPTIBLE);
schedule_timeout(1);
} while (--max_count > 0);
/* This is ok, the most of motherboards have only one codec */
__ac97_ok2:
#endif
#if 0
{
unsigned char cmdb;
pci_read_config_byte(chip->pci, 0x40, &cmdb);
printk("PCI[0x40] = 0x%x\n", cmdb);
pci_read_config_byte(chip->pci, 0x42, &cmdb);
printk("PCI[0x42] = 0x%x\n", cmdb);
pci_read_config_byte(chip->pci, 0x43, &cmdb);
printk("PCI[0x43] = 0x%x\n", cmdb);
pci_read_config_byte(chip->pci, 0x44, &cmdb);
printk("PCI[0x44] = 0x%x\n", cmdb);
pci_read_config_byte(chip->pci, 0x48, &cmdb);
printk("PCI[0x48] = 0x%x\n", cmdb);
}
#endif
/* route FM trap to IRQ, disable FM trap */
pci_write_config_byte(chip->pci, 0x48, 0);
/* disable all GPI interrupts */
outl(0, chip->port + 0x8c);
/* disable interrupts */
snd_via686a_channel_reset(chip, &chip->playback);
snd_via686a_channel_reset(chip, &chip->capture);
snd_via686a_channel_reset(chip, &chip->playback_fm);
return 0;
}
static int snd_via686a_free(via686a_t *chip)
{
if (chip->irq < 0)
goto __end_hw;
/* disable interrupts */
snd_via686a_channel_reset(chip, &chip->playback);
snd_via686a_channel_reset(chip, &chip->capture);
snd_via686a_channel_reset(chip, &chip->playback_fm);
/* --- */
__end_hw:
synchronize_irq();
if (chip->tables)
snd_free_pci_pages(chip->pci, 3 * sizeof(unsigned int) * VIA_MAX_FRAGS * 2, chip->tables, chip->tables_addr);
if (chip->res_port) {
release_resource(chip->res_port);
kfree_nocheck(chip->res_port);
}
if (chip->irq >= 0)
free_irq(chip->irq, (void *)chip);
pci_write_config_byte(chip->pci, 0x42, chip->old_legacy);
pci_write_config_byte(chip->pci, 0x43, chip->old_legacy_cfg);
snd_magic_kfree(chip);
return 0;
}
static int snd_via686a_dev_free(snd_device_t *device)
{
via686a_t *chip = snd_magic_cast(via686a_t, device->device_data, return -ENXIO);
return snd_via686a_free(chip);
}
static int __devinit snd_via686a_create(snd_card_t * card,
struct pci_dev *pci,
unsigned int ac97_clock,
unsigned char old_legacy,
unsigned char old_legacy_cfg,
via686a_t ** r_via)
{
via686a_t *chip;
int err;
static snd_device_ops_t ops = {
dev_free: snd_via686a_dev_free,
};
if ((err = pci_enable_device(pci)) < 0)
return err;
if ((chip = snd_magic_kcalloc(via686a_t, 0, GFP_KERNEL)) == NULL)
return -ENOMEM;
chip->old_legacy = old_legacy;
chip->old_legacy_cfg = old_legacy_cfg;
spin_lock_init(&chip->reg_lock);
spin_lock_init(&chip->ac97_lock);
chip->card = card;
chip->pci = pci;
chip->irq = -1;
chip->port = pci_resource_start(pci, 0);
if ((chip->res_port = request_region(chip->port, 256, "VIA686A")) == NULL) {
snd_via686a_free(chip);
snd_printk("unable to grab ports 0x%lx-0x%lx\n", chip->port, chip->port + 256 - 1);
return -EBUSY;
}
if (request_irq(pci->irq, snd_via686a_interrupt, SA_INTERRUPT|SA_SHIRQ, "VIA686A", (void *)chip)) {
snd_via686a_free(chip);
snd_printk("unable to grab IRQ %d\n", chip->irq);
return -EBUSY;
}
chip->irq = pci->irq;
if (ac97_clock >= 8000 && ac97_clock <= 48000)
chip->ac97_clock = ac97_clock;
pci_read_config_byte(pci, PCI_REVISION_ID, &chip->revision);
synchronize_irq();
/* initialize offsets */
chip->playback.reg_offset = VIA_REG_PLAYBACK_STATUS;
chip->capture.reg_offset = VIA_REG_CAPTURE_STATUS;
chip->playback_fm.reg_offset = VIA_REG_FM_STATUS;
/* allocate buffer descriptor lists */
/* the start of each lists must be aligned to 8 bytes */
chip->tables = (unsigned int *)snd_malloc_pci_pages(pci, 3 * sizeof(unsigned int) * VIA_MAX_FRAGS * 2, &chip->tables_addr);
if (chip->tables == NULL) {
snd_via686a_free(chip);
return -ENOMEM;
}
/* tables must be aligned to 8 bytes, but the kernel pages
are much bigger, so we don't care */
chip->playback.table = chip->tables;
chip->playback.table_addr = chip->tables_addr;
chip->capture.table = chip->playback.table + VIA_MAX_FRAGS * 2;
chip->capture.table_addr = chip->playback.table_addr + sizeof(unsigned int) * VIA_MAX_FRAGS * 2;
chip->playback_fm.table = chip->capture.table + VIA_MAX_FRAGS * 2;
chip->playback_fm.table_addr = chip->capture.table_addr + sizeof(unsigned int) * VIA_MAX_FRAGS * 2;
if ((err = snd_via686a_chip_init(chip)) < 0) {
snd_via686a_free(chip);
return err;
}
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
snd_via686a_free(chip);
return err;
}
*r_via = chip;
return 0;
}
static int __devinit snd_via686a_probe(struct pci_dev *pci,
const struct pci_device_id *id)
{
static int dev = 0;
snd_card_t *card;
via686a_t *chip;
int pcm_dev = 0;
unsigned char legacy;
unsigned char legacy_cfg;
int rev_h = 0, err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!snd_enable[dev]) {
dev++;
return -ENOENT;
}
card = snd_card_new(snd_index[dev], snd_id[dev], THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;
pci_read_config_byte(pci, 0x42, &legacy);
pci_read_config_byte(pci, 0x43, &legacy_cfg);
if ((err = snd_via686a_create(card,
pci,
snd_ac97_clock[dev],
legacy,
legacy_cfg,
&chip)) < 0) {
snd_card_free(card);
return err;
}
if (snd_via686a_mixer(chip) < 0) {
snd_card_free(card);
return err;
}
if (snd_via686a_pcm(chip, pcm_dev++, NULL) < 0) {
snd_card_free(card);
return err;
}
#if 0
if (snd_via686a_pcm_fm(chip, pcm_dev++, NULL) < 0) {
snd_card_free(card);
return err;
}
#endif
legacy |= 0x40; /* disable MIDI */
legacy &= ~0x08; /* disable joystick */
if (chip->revision >= 0x20) {
if (check_region(pci_resource_start(pci, 2), 4)) {
rev_h = 0;
legacy &= ~0x80; /* disable PCI I/O 2 */
} else {
rev_h = 1;
legacy |= 0x80; /* enable PCI I/O 2 */
}
}
pci_write_config_byte(pci, 0x42, legacy);
pci_write_config_byte(pci, 0x43, legacy_cfg);
if (rev_h && snd_mpu_port[dev] >= 0x200) { /* force MIDI */
legacy |= 0x02; /* enable MPU */
pci_write_config_dword(pci, 0x18, (snd_mpu_port[dev] & 0xfffc) | 0x01);
} else {
if (rev_h && (legacy & 0x02)) {
snd_mpu_port[dev] = pci_resource_start(pci, 2);
if (snd_mpu_port[dev] < 0x200) /* bad value */
legacy &= ~0x02; /* disable MIDI */
} else {
switch (snd_mpu_port[dev]) { /* force MIDI */
case 0x300:
case 0x310:
case 0x320:
case 0x330:
legacy_cfg &= ~(3 << 2);
legacy_cfg |= (snd_mpu_port[dev] & 0x0030) >> 2;
legacy |= 0x02;
break;
default: /* no, use BIOS settings */
if (legacy & 0x02)
snd_mpu_port[dev] = 0x300 + ((legacy_cfg & 0x000c) << 2);
}
}
}
pci_write_config_byte(pci, 0x42, legacy);
pci_write_config_byte(pci, 0x43, legacy_cfg);
if (legacy & 0x02) {
if (check_region(snd_mpu_port[dev], 2)) {
snd_printk("unable to get MPU-401 port at 0x%lx, skipping\n", snd_mpu_port[dev]);
legacy &= ~0x02;
pci_write_config_byte(pci, 0x42, legacy);
goto __skip_mpu;
}
if (snd_mpu401_uart_new(card, 0, MPU401_HW_VIA686A,
snd_mpu_port[dev], 0,
pci->irq, 0,
&chip->rmidi) < 0) {
snd_printk("unable to initialize MPU-401 at 0x%lx, skipping\n", snd_mpu_port[dev]);
legacy &= ~0x02;
pci_write_config_byte(pci, 0x42, legacy);
goto __skip_mpu;
}
legacy &= ~0x40; /* enable MIDI interrupt */
pci_write_config_byte(pci, 0x42, legacy);
__skip_mpu:
;
}
/* card switches */
err = snd_ctl_add(card, snd_ctl_new1(&snd_via686a_joystick_control, chip));
if (err < 0) {
snd_card_free(card);
return err;
}
strcpy(card->driver, "VIA686A");
strcpy(card->shortname, "VIA 82C686A/B");
sprintf(card->longname, "%s at 0x%lx, irq %d",
card->shortname, chip->port, chip->irq);
if ((err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
pci_set_drvdata(pci, card);
dev++;
return 0;
}
static void __devexit snd_via686a_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}
static struct pci_driver driver = {
name: "VIA 82C686A/B",
id_table: snd_via686a_ids,
probe: snd_via686a_probe,
remove: __devexit_p(snd_via686a_remove),
};
static int __init alsa_card_via686a_init(void)
{
int err;
if ((err = pci_module_init(&driver)) < 0) {
#ifdef MODULE
snd_printk("VIA 82C686A soundcard not found or device busy\n");
#endif
return err;
}
return 0;
}
static void __exit alsa_card_via686a_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(alsa_card_via686a_init)
module_exit(alsa_card_via686a_exit)
#ifndef MODULE
/* format is: snd-via686a=snd_enable,snd_index,snd_id,
snd_mpu_port,snd_ac97_clock */
static int __init alsa_card_via686a_setup(char *str)
{
static unsigned __initdata nr_dev = 0;
if (nr_dev >= SNDRV_CARDS)
return 0;
(void)(get_option(&str,&snd_enable[nr_dev]) == 2 &&
get_option(&str,&snd_index[nr_dev]) == 2 &&
get_id(&str,&snd_id[nr_dev]) == 2 &&
get_option(&str,(int *)&snd_mpu_port[nr_dev]) == 2 &&
get_option(&str,&snd_ac97_clock[nr_dev]) == 2);
nr_dev++;
return 1;
}
__setup("snd-via686a=", alsa_card_via686a_setup);
#endif /* ifndef MODULE */