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linux/sound/pci/via82xx.c
Takashi Iwai 930fed5174 [ALSA] Add dxs_support entry for MSI K8T Neo-FIS2R 
VIA82xx driver
Report by Ronny V. Vindenes <s864@ii.uib.no>
Add dxs_support=5 for MSI K8T Neo-FIS2R.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-05-29 10:05:01 +02:00

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/*
* ALSA driver for VIA VT82xx (South Bridge)
*
* VT82C686A/B/C, VT8233A/C, VT8235
*
* Copyright (c) 2000 Jaroslav Kysela <perex@suse.cz>
* Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
* 2002 Takashi Iwai <tiwai@suse.de>
*
* 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
*
*/
/*
* Changes:
*
* Dec. 19, 2002 Takashi Iwai <tiwai@suse.de>
* - use the DSX channels for the first pcm playback.
* (on VIA8233, 8233C and 8235 only)
* this will allow you play simultaneously up to 4 streams.
* multi-channel playback is assigned to the second device
* on these chips.
* - support the secondary capture (on VIA8233/C,8235)
* - SPDIF support
* the DSX3 channel can be used for SPDIF output.
* on VIA8233A, this channel is assigned to the second pcm
* playback.
* the card config of alsa-lib will assign the correct
* device for applications.
* - clean up the code, separate low-level initialization
* routines for each chipset.
*/
#include <sound/driver.h>
#include <asm/io.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/slab.h>
#include <linux/gameport.h>
#include <linux/moduleparam.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/info.h>
#include <sound/ac97_codec.h>
#include <sound/mpu401.h>
#include <sound/initval.h>
#if 0
#define POINTER_DEBUG
#endif
MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
MODULE_DESCRIPTION("VIA VT82xx audio");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
#define SUPPORT_JOYSTICK 1
#endif
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static long mpu_port[SNDRV_CARDS];
#ifdef SUPPORT_JOYSTICK
static int joystick[SNDRV_CARDS];
#endif
static int ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 48000};
static char *ac97_quirk[SNDRV_CARDS];
static int dxs_support[SNDRV_CARDS];
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable audio part of VIA 82xx bridge.");
module_param_array(mpu_port, long, NULL, 0444);
MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
#ifdef SUPPORT_JOYSTICK
module_param_array(joystick, bool, NULL, 0444);
MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
#endif
module_param_array(ac97_clock, int, NULL, 0444);
MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
module_param_array(ac97_quirk, charp, NULL, 0444);
MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
module_param_array(dxs_support, int, NULL, 0444);
MODULE_PARM_DESC(dxs_support, "Support for DXS channels (0 = auto, 1 = enable, 2 = disable, 3 = 48k only, 4 = no VRA, 5 = enable any sample rate)");
/* pci ids */
#ifndef PCI_DEVICE_ID_VIA_82C686_5
#define PCI_DEVICE_ID_VIA_82C686_5 0x3058
#endif
#ifndef PCI_DEVICE_ID_VIA_8233_5
#define PCI_DEVICE_ID_VIA_8233_5 0x3059
#endif
/* revision numbers for via686 */
#define VIA_REV_686_A 0x10
#define VIA_REV_686_B 0x11
#define VIA_REV_686_C 0x12
#define VIA_REV_686_D 0x13
#define VIA_REV_686_E 0x14
#define VIA_REV_686_H 0x20
/* revision numbers for via8233 */
#define VIA_REV_PRE_8233 0x10 /* not in market */
#define VIA_REV_8233C 0x20 /* 2 rec, 4 pb, 1 multi-pb */
#define VIA_REV_8233 0x30 /* 2 rec, 4 pb, 1 multi-pb, spdif */
#define VIA_REV_8233A 0x40 /* 1 rec, 1 multi-pb, spdf */
#define VIA_REV_8235 0x50 /* 2 rec, 4 pb, 1 multi-pb, spdif */
#define VIA_REV_8237 0x60
/*
* Direct registers
*/
#define VIAREG(via, x) ((via)->port + VIA_REG_##x)
#define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
/* common 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_AUTOSTART 0x20
#define VIA_REG_CTRL_PAUSE 0x08 /* RW */
#define VIA_REG_CTRL_INT_STOP 0x04
#define VIA_REG_CTRL_INT_EOL 0x02
#define VIA_REG_CTRL_INT_FLAG 0x01
#define VIA_REG_CTRL_RESET 0x01 /* RW - probably reset? undocumented */
#define VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
#define VIA_REG_OFFSET_TYPE 0x02 /* byte - channel type (686 only) */
#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_STOP_IDX 0x08 /* dword - stop index, channel type, sample rate */
#define VIA8233_REG_TYPE_16BIT 0x00200000 /* RW */
#define VIA8233_REG_TYPE_STEREO 0x00100000 /* RW */
#define VIA_REG_OFFSET_CURR_COUNT 0x0c /* dword - channel current count (24 bit) */
#define VIA_REG_OFFSET_CURR_INDEX 0x0f /* byte - channel current index (for via8233 only) */
#define DEFINE_VIA_REGSET(name,val) \
enum {\
VIA_REG_##name##_STATUS = (val),\
VIA_REG_##name##_CONTROL = (val) + 0x01,\
VIA_REG_##name##_TYPE = (val) + 0x02,\
VIA_REG_##name##_TABLE_PTR = (val) + 0x04,\
VIA_REG_##name##_CURR_PTR = (val) + 0x04,\
VIA_REG_##name##_STOP_IDX = (val) + 0x08,\
VIA_REG_##name##_CURR_COUNT = (val) + 0x0c,\
}
/* playback block */
DEFINE_VIA_REGSET(PLAYBACK, 0x00);
DEFINE_VIA_REGSET(CAPTURE, 0x10);
DEFINE_VIA_REGSET(FM, 0x20);
/* 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 */
/* via686 */
#define VIA_REG_SGD_STAT_PB_FLAG (1<<0)
#define VIA_REG_SGD_STAT_CP_FLAG (1<<1)
#define VIA_REG_SGD_STAT_FM_FLAG (1<<2)
#define VIA_REG_SGD_STAT_PB_EOL (1<<4)
#define VIA_REG_SGD_STAT_CP_EOL (1<<5)
#define VIA_REG_SGD_STAT_FM_EOL (1<<6)
#define VIA_REG_SGD_STAT_PB_STOP (1<<8)
#define VIA_REG_SGD_STAT_CP_STOP (1<<9)
#define VIA_REG_SGD_STAT_FM_STOP (1<<10)
#define VIA_REG_SGD_STAT_PB_ACTIVE (1<<12)
#define VIA_REG_SGD_STAT_CP_ACTIVE (1<<13)
#define VIA_REG_SGD_STAT_FM_ACTIVE (1<<14)
/* via8233 */
#define VIA8233_REG_SGD_STAT_FLAG (1<<0)
#define VIA8233_REG_SGD_STAT_EOL (1<<1)
#define VIA8233_REG_SGD_STAT_STOP (1<<2)
#define VIA8233_REG_SGD_STAT_ACTIVE (1<<3)
#define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
#define VIA8233_REG_SGD_CHAN_SDX 0
#define VIA8233_REG_SGD_CHAN_MULTI 4
#define VIA8233_REG_SGD_CHAN_REC 6
#define VIA8233_REG_SGD_CHAN_REC1 7
#define VIA_REG_GPI_STATUS 0x88
#define VIA_REG_GPI_INTR 0x8c
/* multi-channel and capture registers for via8233 */
DEFINE_VIA_REGSET(MULTPLAY, 0x40);
DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
/* via8233-specific registers */
#define VIA_REG_OFS_PLAYBACK_VOLUME_L 0x02 /* byte */
#define VIA_REG_OFS_PLAYBACK_VOLUME_R 0x03 /* byte */
#define VIA_REG_OFS_MULTPLAY_FORMAT 0x02 /* byte - format and channels */
#define VIA_REG_MULTPLAY_FMT_8BIT 0x00
#define VIA_REG_MULTPLAY_FMT_16BIT 0x80
#define VIA_REG_MULTPLAY_FMT_CH_MASK 0x70 /* # channels << 4 (valid = 1,2,4,6) */
#define VIA_REG_OFS_CAPTURE_FIFO 0x02 /* byte - bit 6 = fifo enable */
#define VIA_REG_CAPTURE_FIFO_ENABLE 0x40
#define VIA_DXS_MAX_VOLUME 31 /* max. volume (attenuation) of reg 0x32/33 */
#define VIA_REG_CAPTURE_CHANNEL 0x63 /* byte - input select */
#define VIA_REG_CAPTURE_CHANNEL_MIC 0x4
#define VIA_REG_CAPTURE_CHANNEL_LINE 0
#define VIA_REG_CAPTURE_SELECT_CODEC 0x03 /* recording source codec (0 = primary) */
#define VIA_TBL_BIT_FLAG 0x40000000
#define VIA_TBL_BIT_EOL 0x80000000
/* pci space */
#define VIA_ACLINK_STAT 0x40
#define VIA_ACLINK_C11_READY 0x20
#define VIA_ACLINK_C10_READY 0x10
#define VIA_ACLINK_C01_READY 0x04 /* secondary codec ready */
#define VIA_ACLINK_LOWPOWER 0x02 /* low-power state */
#define VIA_ACLINK_C00_READY 0x01 /* primary codec ready */
#define VIA_ACLINK_CTRL 0x41
#define VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
#define VIA_ACLINK_CTRL_RESET 0x40 /* 0: assert, 1: de-assert */
#define VIA_ACLINK_CTRL_SYNC 0x20 /* 0: release SYNC, 1: force SYNC hi */
#define VIA_ACLINK_CTRL_SDO 0x10 /* 0: release SDO, 1: force SDO hi */
#define VIA_ACLINK_CTRL_VRA 0x08 /* 0: disable VRA, 1: enable VRA */
#define VIA_ACLINK_CTRL_PCM 0x04 /* 0: disable PCM, 1: enable PCM */
#define VIA_ACLINK_CTRL_FM 0x02 /* via686 only */
#define VIA_ACLINK_CTRL_SB 0x01 /* via686 only */
#define VIA_ACLINK_CTRL_INIT (VIA_ACLINK_CTRL_ENABLE|\
VIA_ACLINK_CTRL_RESET|\
VIA_ACLINK_CTRL_PCM|\
VIA_ACLINK_CTRL_VRA)
#define VIA_FUNC_ENABLE 0x42
#define VIA_FUNC_MIDI_PNP 0x80 /* FIXME: it's 0x40 in the datasheet! */
#define VIA_FUNC_MIDI_IRQMASK 0x40 /* FIXME: not documented! */
#define VIA_FUNC_RX2C_WRITE 0x20
#define VIA_FUNC_SB_FIFO_EMPTY 0x10
#define VIA_FUNC_ENABLE_GAME 0x08
#define VIA_FUNC_ENABLE_FM 0x04
#define VIA_FUNC_ENABLE_MIDI 0x02
#define VIA_FUNC_ENABLE_SB 0x01
#define VIA_PNP_CONTROL 0x43
#define VIA_FM_NMI_CTRL 0x48
#define VIA8233_VOLCHG_CTRL 0x48
#define VIA8233_SPDIF_CTRL 0x49
#define VIA8233_SPDIF_DX3 0x08
#define VIA8233_SPDIF_SLOT_MASK 0x03
#define VIA8233_SPDIF_SLOT_1011 0x00
#define VIA8233_SPDIF_SLOT_34 0x01
#define VIA8233_SPDIF_SLOT_78 0x02
#define VIA8233_SPDIF_SLOT_69 0x03
/*
*/
#define VIA_DXS_AUTO 0
#define VIA_DXS_ENABLE 1
#define VIA_DXS_DISABLE 2
#define VIA_DXS_48K 3
#define VIA_DXS_NO_VRA 4
#define VIA_DXS_SRC 5
/*
*/
typedef struct _snd_via82xx via82xx_t;
typedef struct via_dev viadev_t;
/*
* pcm stream
*/
struct snd_via_sg_table {
unsigned int offset;
unsigned int size;
} ;
#define VIA_TABLE_SIZE 255
struct via_dev {
unsigned int reg_offset;
unsigned long port;
int direction; /* playback = 0, capture = 1 */
snd_pcm_substream_t *substream;
int running;
unsigned int tbl_entries; /* # descriptors */
struct snd_dma_buffer table;
struct snd_via_sg_table *idx_table;
/* for recovery from the unexpected pointer */
unsigned int lastpos;
unsigned int fragsize;
unsigned int bufsize;
unsigned int bufsize2;
};
enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
#define VIA_MAX_DEVS 7 /* 4 playback, 1 multi, 2 capture */
struct via_rate_lock {
spinlock_t lock;
int rate;
int used;
};
struct _snd_via82xx {
int irq;
unsigned long port;
struct resource *mpu_res;
int chip_type;
unsigned char revision;
unsigned char old_legacy;
unsigned char old_legacy_cfg;
#ifdef CONFIG_PM
unsigned char legacy_saved;
unsigned char legacy_cfg_saved;
unsigned char spdif_ctrl_saved;
unsigned char capture_src_saved[2];
unsigned int mpu_port_saved;
#endif
unsigned char playback_volume[2]; /* for VIA8233/C/8235; default = 0 */
unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
struct pci_dev *pci;
snd_card_t *card;
unsigned int num_devs;
unsigned int playback_devno, multi_devno, capture_devno;
viadev_t devs[VIA_MAX_DEVS];
struct via_rate_lock rates[2]; /* playback and capture */
unsigned int dxs_fixed: 1; /* DXS channel accepts only 48kHz */
unsigned int no_vra: 1; /* no need to set VRA on DXS channels */
unsigned int dxs_src: 1; /* use full SRC capabilities of DXS */
unsigned int spdif_on: 1; /* only spdif rates work to external DACs */
snd_pcm_t *pcms[2];
snd_rawmidi_t *rmidi;
ac97_bus_t *ac97_bus;
ac97_t *ac97;
unsigned int ac97_clock;
unsigned int ac97_secondary; /* secondary AC'97 codec is present */
spinlock_t reg_lock;
snd_info_entry_t *proc_entry;
#ifdef SUPPORT_JOYSTICK
struct gameport *gameport;
#endif
};
static struct pci_device_id snd_via82xx_ids[] = {
{ 0x1106, 0x3058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA686, }, /* 686A */
{ 0x1106, 0x3059, PCI_ANY_ID, PCI_ANY_ID, 0, 0, TYPE_CARD_VIA8233, }, /* VT8233 */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
/*
*/
/*
* allocate and initialize the descriptor buffers
* periods = number of periods
* fragsize = period size in bytes
*/
static int build_via_table(viadev_t *dev, snd_pcm_substream_t *substream,
struct pci_dev *pci,
unsigned int periods, unsigned int fragsize)
{
unsigned int i, idx, ofs, rest;
via82xx_t *chip = snd_pcm_substream_chip(substream);
struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
if (dev->table.area == NULL) {
/* the start of each lists must be aligned to 8 bytes,
* but the kernel pages are much bigger, so we don't care
*/
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
&dev->table) < 0)
return -ENOMEM;
}
if (! dev->idx_table) {
dev->idx_table = kmalloc(sizeof(*dev->idx_table) * VIA_TABLE_SIZE, GFP_KERNEL);
if (! dev->idx_table)
return -ENOMEM;
}
/* fill the entries */
idx = 0;
ofs = 0;
for (i = 0; i < periods; i++) {
rest = fragsize;
/* fill descriptors for a period.
* a period can be split to several descriptors if it's
* over page boundary.
*/
do {
unsigned int r;
unsigned int flag;
if (idx >= VIA_TABLE_SIZE) {
snd_printk(KERN_ERR "via82xx: too much table size!\n");
return -EINVAL;
}
((u32 *)dev->table.area)[idx << 1] = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, ofs));
r = PAGE_SIZE - (ofs % PAGE_SIZE);
if (rest < r)
r = rest;
rest -= r;
if (! rest) {
if (i == periods - 1)
flag = VIA_TBL_BIT_EOL; /* buffer boundary */
else
flag = VIA_TBL_BIT_FLAG; /* period boundary */
} else
flag = 0; /* period continues to the next */
// printk("via: tbl %d: at %d size %d (rest %d)\n", idx, ofs, r, rest);
((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
dev->idx_table[idx].offset = ofs;
dev->idx_table[idx].size = r;
ofs += r;
idx++;
} while (rest > 0);
}
dev->tbl_entries = idx;
dev->bufsize = periods * fragsize;
dev->bufsize2 = dev->bufsize / 2;
dev->fragsize = fragsize;
return 0;
}
static int clean_via_table(viadev_t *dev, snd_pcm_substream_t *substream,
struct pci_dev *pci)
{
if (dev->table.area) {
snd_dma_free_pages(&dev->table);
dev->table.area = NULL;
}
if (dev->idx_table) {
kfree(dev->idx_table);
dev->idx_table = NULL;
}
return 0;
}
/*
* Basic I/O
*/
static inline unsigned int snd_via82xx_codec_xread(via82xx_t *chip)
{
return inl(VIAREG(chip, AC97));
}
static inline void snd_via82xx_codec_xwrite(via82xx_t *chip, unsigned int val)
{
outl(val, VIAREG(chip, AC97));
}
static int snd_via82xx_codec_ready(via82xx_t *chip, int secondary)
{
unsigned int timeout = 1000; /* 1ms */
unsigned int val;
while (timeout-- > 0) {
udelay(1);
if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
return val & 0xffff;
}
snd_printk(KERN_ERR "codec_ready: codec %i is not ready [0x%x]\n", secondary, snd_via82xx_codec_xread(chip));
return -EIO;
}
static int snd_via82xx_codec_valid(via82xx_t *chip, int secondary)
{
unsigned int timeout = 1000; /* 1ms */
unsigned int val, val1;
unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
VIA_REG_AC97_SECONDARY_VALID;
while (timeout-- > 0) {
val = snd_via82xx_codec_xread(chip);
val1 = val & (VIA_REG_AC97_BUSY | stat);
if (val1 == stat)
return val & 0xffff;
udelay(1);
}
return -EIO;
}
static void snd_via82xx_codec_wait(ac97_t *ac97)
{
via82xx_t *chip = ac97->private_data;
int err;
err = snd_via82xx_codec_ready(chip, ac97->num);
/* here we need to wait fairly for long time.. */
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(HZ/2);
}
static void snd_via82xx_codec_write(ac97_t *ac97,
unsigned short reg,
unsigned short val)
{
via82xx_t *chip = ac97->private_data;
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;
snd_via82xx_codec_xwrite(chip, xval);
snd_via82xx_codec_ready(chip, ac97->num);
}
static unsigned short snd_via82xx_codec_read(ac97_t *ac97, unsigned short reg)
{
via82xx_t *chip = ac97->private_data;
unsigned int xval, val = 0xffff;
int again = 0;
xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
xval |= VIA_REG_AC97_READ;
xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
while (1) {
if (again++ > 3) {
snd_printk(KERN_ERR "codec_read: codec %i is not valid [0x%x]\n", ac97->num, snd_via82xx_codec_xread(chip));
return 0xffff;
}
snd_via82xx_codec_xwrite(chip, xval);
udelay (20);
if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
udelay(25);
val = snd_via82xx_codec_xread(chip);
break;
}
}
return val & 0xffff;
}
static void snd_via82xx_channel_reset(via82xx_t *chip, viadev_t *viadev)
{
outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
VIADEV_REG(viadev, OFFSET_CONTROL));
inb(VIADEV_REG(viadev, OFFSET_CONTROL));
udelay(50);
/* disable interrupts */
outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
/* clear interrupts */
outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
// outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
viadev->lastpos = 0;
}
/*
* Interrupt handler
*/
static irqreturn_t snd_via82xx_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
via82xx_t *chip = dev_id;
unsigned int status;
unsigned int i;
status = inl(VIAREG(chip, SGD_SHADOW));
if (! (status & chip->intr_mask)) {
if (chip->rmidi)
/* check mpu401 interrupt */
return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
return IRQ_NONE;
}
/* check status for each stream */
spin_lock(&chip->reg_lock);
for (i = 0; i < chip->num_devs; i++) {
viadev_t *viadev = &chip->devs[i];
unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
c_status &= (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED);
if (! c_status)
continue;
if (viadev->substream && viadev->running) {
spin_unlock(&chip->reg_lock);
snd_pcm_period_elapsed(viadev->substream);
spin_lock(&chip->reg_lock);
}
outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
}
spin_unlock(&chip->reg_lock);
return IRQ_HANDLED;
}
/*
* PCM callbacks
*/
/*
* trigger callback
*/
static int snd_via82xx_pcm_trigger(snd_pcm_substream_t * substream, int cmd)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
unsigned char val;
if (chip->chip_type != TYPE_VIA686)
val = VIA_REG_CTRL_INT;
else
val = 0;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
val |= VIA_REG_CTRL_START;
viadev->running = 1;
break;
case SNDRV_PCM_TRIGGER_STOP:
val = VIA_REG_CTRL_TERMINATE;
viadev->running = 0;
break;
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
val |= VIA_REG_CTRL_PAUSE;
viadev->running = 0;
break;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
viadev->running = 1;
break;
default:
return -EINVAL;
}
outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
if (cmd == SNDRV_PCM_TRIGGER_STOP)
snd_via82xx_channel_reset(chip, viadev);
return 0;
}
/*
* pointer callbacks
*/
/*
* calculate the linear position at the given sg-buffer index and the rest count
*/
#define check_invalid_pos(viadev,pos) \
((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 || viadev->lastpos < viadev->bufsize2))
static inline unsigned int calc_linear_pos(viadev_t *viadev, unsigned int idx, unsigned int count)
{
unsigned int size, base, res;
size = viadev->idx_table[idx].size;
base = viadev->idx_table[idx].offset;
res = base + size - count;
/* check the validity of the calculated position */
if (size < count) {
snd_printd(KERN_ERR "invalid via82xx_cur_ptr (size = %d, count = %d)\n", (int)size, (int)count);
res = viadev->lastpos;
} else {
if (! count) {
/* Some mobos report count = 0 on the DMA boundary,
* i.e. count = size indeed.
* Let's check whether this step is above the expected size.
*/
int delta = res - viadev->lastpos;
if (delta < 0)
delta += viadev->bufsize;
if ((unsigned int)delta > viadev->fragsize)
res = base;
}
if (check_invalid_pos(viadev, res)) {
#ifdef POINTER_DEBUG
printk(KERN_DEBUG "fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n", idx, viadev->tbl_entries, viadev->lastpos, viadev->bufsize2, viadev->idx_table[idx].offset, viadev->idx_table[idx].size, count);
#endif
/* count register returns full size when end of buffer is reached */
res = base + size;
if (check_invalid_pos(viadev, res)) {
snd_printd(KERN_ERR "invalid via82xx_cur_ptr (2), using last valid pointer\n");
res = viadev->lastpos;
}
}
}
viadev->lastpos = res; /* remember the last position */
if (res >= viadev->bufsize)
res -= viadev->bufsize;
return res;
}
/*
* get the current pointer on via686
*/
static snd_pcm_uframes_t snd_via686_pcm_pointer(snd_pcm_substream_t *substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
unsigned int idx, ptr, count, res;
snd_assert(viadev->tbl_entries, return 0);
if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
return 0;
spin_lock(&chip->reg_lock);
count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
/* The via686a does not have the current index register,
* so we need to calculate the index from CURR_PTR.
*/
ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
if (ptr <= (unsigned int)viadev->table.addr)
idx = 0;
else /* CURR_PTR holds the address + 8 */
idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
res = calc_linear_pos(viadev, idx, count);
spin_unlock(&chip->reg_lock);
return bytes_to_frames(substream->runtime, res);
}
/*
* get the current pointer on via823x
*/
static snd_pcm_uframes_t snd_via8233_pcm_pointer(snd_pcm_substream_t *substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
unsigned int idx, count, res;
int timeout = 5000;
snd_assert(viadev->tbl_entries, return 0);
if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
return 0;
spin_lock(&chip->reg_lock);
do {
count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
/* some mobos read 0 count */
if ((count & 0xffffff) || ! viadev->running)
break;
} while (--timeout);
if (! timeout)
snd_printd(KERN_ERR "zero position is read\n");
idx = count >> 24;
if (idx >= viadev->tbl_entries) {
#ifdef POINTER_DEBUG
printk("fail: invalid idx = %i/%i\n", idx, viadev->tbl_entries);
#endif
res = viadev->lastpos;
} else {
count &= 0xffffff;
res = calc_linear_pos(viadev, idx, count);
}
spin_unlock(&chip->reg_lock);
return bytes_to_frames(substream->runtime, res);
}
/*
* hw_params callback:
* allocate the buffer and build up the buffer description table
*/
static int snd_via82xx_hw_params(snd_pcm_substream_t * substream,
snd_pcm_hw_params_t * hw_params)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
int err;
err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
if (err < 0)
return err;
err = build_via_table(viadev, substream, chip->pci,
params_periods(hw_params),
params_period_bytes(hw_params));
if (err < 0)
return err;
return 0;
}
/*
* hw_free callback:
* clean up the buffer description table and release the buffer
*/
static int snd_via82xx_hw_free(snd_pcm_substream_t * substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
clean_via_table(viadev, substream, chip->pci);
snd_pcm_lib_free_pages(substream);
return 0;
}
/*
* set up the table pointer
*/
static void snd_via82xx_set_table_ptr(via82xx_t *chip, viadev_t *viadev)
{
snd_via82xx_codec_ready(chip, 0);
outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
udelay(20);
snd_via82xx_codec_ready(chip, 0);
}
/*
* prepare callback for playback and capture on via686
*/
static void via686_setup_format(via82xx_t *chip, viadev_t *viadev, snd_pcm_runtime_t *runtime)
{
snd_via82xx_channel_reset(chip, viadev);
/* this must be set after channel_reset */
snd_via82xx_set_table_ptr(chip, viadev);
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, VIADEV_REG(viadev, OFFSET_TYPE));
}
static int snd_via686_playback_prepare(snd_pcm_substream_t *substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
via686_setup_format(chip, viadev, runtime);
return 0;
}
static int snd_via686_capture_prepare(snd_pcm_substream_t *substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
snd_pcm_runtime_t *runtime = substream->runtime;
snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
via686_setup_format(chip, viadev, runtime);
return 0;
}
/*
* lock the current rate
*/
static int via_lock_rate(struct via_rate_lock *rec, int rate)
{
int changed = 0;
spin_lock_irq(&rec->lock);
if (rec->rate != rate) {
if (rec->rate && rec->used > 1) /* already set */
changed = -EINVAL;
else {
rec->rate = rate;
changed = 1;
}
}
spin_unlock_irq(&rec->lock);
return changed;
}
/*
* prepare callback for DSX playback on via823x
*/
static int snd_via8233_playback_prepare(snd_pcm_substream_t *substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
snd_pcm_runtime_t *runtime = substream->runtime;
int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
int rate_changed;
u32 rbits;
if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
return rate_changed;
if (rate_changed) {
snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
chip->no_vra ? 48000 : runtime->rate);
snd_ac97_set_rate(chip->ac97, AC97_SPDIF,
chip->no_vra ? 48000 : runtime->rate);
}
if (runtime->rate == 48000)
rbits = 0xfffff;
else
rbits = (0x100000 / 48000) * runtime->rate + ((0x100000 % 48000) * runtime->rate) / 48000;
snd_assert((rbits & ~0xfffff) == 0, return -EINVAL);
snd_via82xx_channel_reset(chip, viadev);
snd_via82xx_set_table_ptr(chip, viadev);
outb(chip->playback_volume[0], VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
outb(chip->playback_volume[1], VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
(runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
rbits | /* rate */
0xff000000, /* STOP index is never reached */
VIADEV_REG(viadev, OFFSET_STOP_IDX));
udelay(20);
snd_via82xx_codec_ready(chip, 0);
return 0;
}
/*
* prepare callback for multi-channel playback on via823x
*/
static int snd_via8233_multi_prepare(snd_pcm_substream_t *substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
snd_pcm_runtime_t *runtime = substream->runtime;
unsigned int slots;
int fmt;
if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
return -EINVAL;
snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
snd_via82xx_channel_reset(chip, viadev);
snd_via82xx_set_table_ptr(chip, viadev);
fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ? VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
fmt |= runtime->channels << 4;
outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
#if 0
if (chip->revision == VIA_REV_8233A)
slots = 0;
else
#endif
{
/* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
/* corresponding to FL, FR, RL, RR, C, LFE ?? */
switch (runtime->channels) {
case 1: slots = (1<<0) | (1<<4); break;
case 2: slots = (1<<0) | (2<<4); break;
case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
default: slots = 0; break;
}
}
/* STOP index is never reached */
outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
udelay(20);
snd_via82xx_codec_ready(chip, 0);
return 0;
}
/*
* prepare callback for capture on via823x
*/
static int snd_via8233_capture_prepare(snd_pcm_substream_t *substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
snd_pcm_runtime_t *runtime = substream->runtime;
if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
return -EINVAL;
snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
snd_via82xx_channel_reset(chip, viadev);
snd_via82xx_set_table_ptr(chip, viadev);
outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
(runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
0xff000000, /* STOP index is never reached */
VIADEV_REG(viadev, OFFSET_STOP_IDX));
udelay(20);
snd_via82xx_codec_ready(chip, 0);
return 0;
}
/*
* pcm hardware definition, identical for both playback and capture
*/
static snd_pcm_hardware_t snd_via82xx_hw =
{
.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_PAUSE),
.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_48000,
.rate_min = 48000,
.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 = 2,
.periods_max = VIA_TABLE_SIZE / 2,
.fifo_size = 0,
};
/*
* open callback skeleton
*/
static int snd_via82xx_pcm_open(via82xx_t *chip, viadev_t *viadev, snd_pcm_substream_t * substream)
{
snd_pcm_runtime_t *runtime = substream->runtime;
int err;
struct via_rate_lock *ratep;
runtime->hw = snd_via82xx_hw;
/* set the hw rate condition */
ratep = &chip->rates[viadev->direction];
spin_lock_irq(&ratep->lock);
ratep->used++;
if (chip->spdif_on && viadev->reg_offset == 0x30) {
/* DXS#3 and spdif is on */
runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
snd_pcm_limit_hw_rates(runtime);
} else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
/* fixed DXS playback rate */
runtime->hw.rates = SNDRV_PCM_RATE_48000;
runtime->hw.rate_min = runtime->hw.rate_max = 48000;
} else if (chip->dxs_src && viadev->reg_offset < 0x40) {
/* use full SRC capabilities of DXS */
runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
SNDRV_PCM_RATE_8000_48000);
runtime->hw.rate_min = 8000;
runtime->hw.rate_max = 48000;
} else if (! ratep->rate) {
int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
runtime->hw.rates = chip->ac97->rates[idx];
snd_pcm_limit_hw_rates(runtime);
} else {
/* a fixed rate */
runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
}
spin_unlock_irq(&ratep->lock);
/* we may remove following constaint when we modify table entries
in interrupt */
if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
runtime->private_data = viadev;
viadev->substream = substream;
return 0;
}
/*
* open callback for playback on via686 and via823x DSX
*/
static int snd_via82xx_playback_open(snd_pcm_substream_t * substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = &chip->devs[chip->playback_devno + substream->number];
int err;
if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
return err;
return 0;
}
/*
* open callback for playback on via823x multi-channel
*/
static int snd_via8233_multi_open(snd_pcm_substream_t * substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = &chip->devs[chip->multi_devno];
int err;
/* channels constraint for VIA8233A
* 3 and 5 channels are not supported
*/
static unsigned int channels[] = {
1, 2, 4, 6
};
static snd_pcm_hw_constraint_list_t hw_constraints_channels = {
.count = ARRAY_SIZE(channels),
.list = channels,
.mask = 0,
};
if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
return err;
substream->runtime->hw.channels_max = 6;
if (chip->revision == VIA_REV_8233A)
snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &hw_constraints_channels);
return 0;
}
/*
* open callback for capture on via686 and via823x
*/
static int snd_via82xx_capture_open(snd_pcm_substream_t * substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
return snd_via82xx_pcm_open(chip, viadev, substream);
}
/*
* close callback
*/
static int snd_via82xx_pcm_close(snd_pcm_substream_t * substream)
{
via82xx_t *chip = snd_pcm_substream_chip(substream);
viadev_t *viadev = (viadev_t *)substream->runtime->private_data;
struct via_rate_lock *ratep;
/* release the rate lock */
ratep = &chip->rates[viadev->direction];
spin_lock_irq(&ratep->lock);
ratep->used--;
if (! ratep->used)
ratep->rate = 0;
spin_unlock_irq(&ratep->lock);
viadev->substream = NULL;
return 0;
}
/* via686 playback callbacks */
static snd_pcm_ops_t snd_via686_playback_ops = {
.open = snd_via82xx_playback_open,
.close = snd_via82xx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_via82xx_hw_params,
.hw_free = snd_via82xx_hw_free,
.prepare = snd_via686_playback_prepare,
.trigger = snd_via82xx_pcm_trigger,
.pointer = snd_via686_pcm_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
/* via686 capture callbacks */
static snd_pcm_ops_t snd_via686_capture_ops = {
.open = snd_via82xx_capture_open,
.close = snd_via82xx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_via82xx_hw_params,
.hw_free = snd_via82xx_hw_free,
.prepare = snd_via686_capture_prepare,
.trigger = snd_via82xx_pcm_trigger,
.pointer = snd_via686_pcm_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
/* via823x DSX playback callbacks */
static snd_pcm_ops_t snd_via8233_playback_ops = {
.open = snd_via82xx_playback_open,
.close = snd_via82xx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_via82xx_hw_params,
.hw_free = snd_via82xx_hw_free,
.prepare = snd_via8233_playback_prepare,
.trigger = snd_via82xx_pcm_trigger,
.pointer = snd_via8233_pcm_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
/* via823x multi-channel playback callbacks */
static snd_pcm_ops_t snd_via8233_multi_ops = {
.open = snd_via8233_multi_open,
.close = snd_via82xx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_via82xx_hw_params,
.hw_free = snd_via82xx_hw_free,
.prepare = snd_via8233_multi_prepare,
.trigger = snd_via82xx_pcm_trigger,
.pointer = snd_via8233_pcm_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
/* via823x capture callbacks */
static snd_pcm_ops_t snd_via8233_capture_ops = {
.open = snd_via82xx_capture_open,
.close = snd_via82xx_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_via82xx_hw_params,
.hw_free = snd_via82xx_hw_free,
.prepare = snd_via8233_capture_prepare,
.trigger = snd_via82xx_pcm_trigger,
.pointer = snd_via8233_pcm_pointer,
.page = snd_pcm_sgbuf_ops_page,
};
static void init_viadev(via82xx_t *chip, int idx, unsigned int reg_offset, int direction)
{
chip->devs[idx].reg_offset = reg_offset;
chip->devs[idx].direction = direction;
chip->devs[idx].port = chip->port + reg_offset;
}
/*
* create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
*/
static int __devinit snd_via8233_pcm_new(via82xx_t *chip)
{
snd_pcm_t *pcm;
int i, err;
chip->playback_devno = 0; /* x 4 */
chip->multi_devno = 4; /* x 1 */
chip->capture_devno = 5; /* x 2 */
chip->num_devs = 7;
chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
/* PCM #0: 4 DSX playbacks and 1 capture */
err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
pcm->private_data = chip;
strcpy(pcm->name, chip->card->shortname);
chip->pcms[0] = pcm;
/* set up playbacks */
for (i = 0; i < 4; i++)
init_viadev(chip, i, 0x10 * i, 0);
/* capture */
init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 1);
if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0)
return err;
/* PCM #1: multi-channel playback and 2nd capture */
err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
pcm->private_data = chip;
strcpy(pcm->name, chip->card->shortname);
chip->pcms[1] = pcm;
/* set up playback */
init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 0);
/* set up capture */
init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 1);
if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0)
return err;
return 0;
}
/*
* create pcm instances for VIA8233A
*/
static int __devinit snd_via8233a_pcm_new(via82xx_t *chip)
{
snd_pcm_t *pcm;
int err;
chip->multi_devno = 0;
chip->playback_devno = 1;
chip->capture_devno = 2;
chip->num_devs = 3;
chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
/* PCM #0: multi-channel playback and capture */
err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
pcm->private_data = chip;
strcpy(pcm->name, chip->card->shortname);
chip->pcms[0] = pcm;
/* set up playback */
init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 0);
/* capture */
init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 1);
if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0)
return err;
/* SPDIF supported? */
if (! ac97_can_spdif(chip->ac97))
return 0;
/* PCM #1: DXS3 playback (for spdif) */
err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
pcm->private_data = chip;
strcpy(pcm->name, chip->card->shortname);
chip->pcms[1] = pcm;
/* set up playback */
init_viadev(chip, chip->playback_devno, 0x30, 0);
if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0)
return err;
return 0;
}
/*
* create a pcm instance for via686a/b
*/
static int __devinit snd_via686_pcm_new(via82xx_t *chip)
{
snd_pcm_t *pcm;
int err;
chip->playback_devno = 0;
chip->capture_devno = 1;
chip->num_devs = 2;
chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
if (err < 0)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
pcm->private_data = chip;
strcpy(pcm->name, chip->card->shortname);
chip->pcms[0] = pcm;
init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0);
init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 1);
if ((err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
snd_dma_pci_data(chip->pci), 64*1024, 128*1024)) < 0)
return err;
return 0;
}
/*
* Mixer part
*/
static int snd_via8233_capture_source_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
/* formerly they were "Line" and "Mic", but it looks like that they
* have nothing to do with the actual physical connections...
*/
static char *texts[2] = {
"Input1", "Input2"
};
uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
uinfo->count = 1;
uinfo->value.enumerated.items = 2;
if (uinfo->value.enumerated.item >= 2)
uinfo->value.enumerated.item = 1;
strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
return 0;
}
static int snd_via8233_capture_source_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
return 0;
}
static int snd_via8233_capture_source_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
u8 val, oval;
spin_lock_irq(&chip->reg_lock);
oval = inb(port);
val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
if (ucontrol->value.enumerated.item[0])
val |= VIA_REG_CAPTURE_CHANNEL_MIC;
if (val != oval)
outb(val, port);
spin_unlock_irq(&chip->reg_lock);
return val != oval;
}
static snd_kcontrol_new_t snd_via8233_capture_source __devinitdata = {
.name = "Input Source Select",
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.info = snd_via8233_capture_source_info,
.get = snd_via8233_capture_source_get,
.put = snd_via8233_capture_source_put,
};
static int snd_via8233_dxs3_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 1;
return 0;
}
static int snd_via8233_dxs3_spdif_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
u8 val;
pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
return 0;
}
static int snd_via8233_dxs3_spdif_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
u8 val, oval;
pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
val = oval & ~VIA8233_SPDIF_DX3;
if (ucontrol->value.integer.value[0])
val |= VIA8233_SPDIF_DX3;
/* save the spdif flag for rate filtering */
chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
if (val != oval) {
pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
return 1;
}
return 0;
}
static snd_kcontrol_new_t snd_via8233_dxs3_spdif_control __devinitdata = {
.name = "IEC958 Output Switch",
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.info = snd_via8233_dxs3_spdif_info,
.get = snd_via8233_dxs3_spdif_get,
.put = snd_via8233_dxs3_spdif_put,
};
static int snd_via8233_dxs_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 2;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
return 0;
}
static int snd_via8233_dxs_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[0];
ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[1];
return 0;
}
static int snd_via8233_dxs_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
via82xx_t *chip = snd_kcontrol_chip(kcontrol);
unsigned int idx;
unsigned char val;
int i, change = 0;
for (i = 0; i < 2; i++) {
val = ucontrol->value.integer.value[i];
if (val > VIA_DXS_MAX_VOLUME)
val = VIA_DXS_MAX_VOLUME;
val = VIA_DXS_MAX_VOLUME - val;
if (val != chip->playback_volume[i]) {
change = 1;
chip->playback_volume[i] = val;
for (idx = 0; idx < 4; idx++) {
unsigned long port = chip->port + 0x10 * idx;
outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
}
}
}
return change;
}
static snd_kcontrol_new_t snd_via8233_dxs_volume_control __devinitdata = {
.name = "PCM Playback Volume",
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.info = snd_via8233_dxs_volume_info,
.get = snd_via8233_dxs_volume_get,
.put = snd_via8233_dxs_volume_put,
};
/*
*/
static void snd_via82xx_mixer_free_ac97_bus(ac97_bus_t *bus)
{
via82xx_t *chip = bus->private_data;
chip->ac97_bus = NULL;
}
static void snd_via82xx_mixer_free_ac97(ac97_t *ac97)
{
via82xx_t *chip = ac97->private_data;
chip->ac97 = NULL;
}
static struct ac97_quirk ac97_quirks[] = {
{
.vendor = 0x1106,
.device = 0x4161,
.codec_id = 0x56494161, /* VT1612A */
.name = "Soltek SL-75DRV5",
.type = AC97_TUNE_NONE
},
{ /* FIXME: which codec? */
.vendor = 0x1106,
.device = 0x4161,
.name = "ASRock K7VT2",
.type = AC97_TUNE_HP_ONLY
},
{
.vendor = 0x1019,
.device = 0x0a81,
.name = "ECS K7VTA3",
.type = AC97_TUNE_HP_ONLY
},
{
.vendor = 0x1019,
.device = 0x0a85,
.name = "ECS L7VMM2",
.type = AC97_TUNE_HP_ONLY
},
{
.vendor = 0x1849,
.device = 0x3059,
.name = "ASRock K7VM2",
.type = AC97_TUNE_HP_ONLY /* VT1616 */
},
{
.vendor = 0x14cd,
.device = 0x7002,
.name = "Unknown",
.type = AC97_TUNE_ALC_JACK
},
{
.vendor = 0x1071,
.device = 0x8590,
.name = "Mitac Mobo",
.type = AC97_TUNE_ALC_JACK
},
{
.vendor = 0x161f,
.device = 0x202b,
.name = "Arima Notebook",
.type = AC97_TUNE_HP_ONLY,
},
{ } /* terminator */
};
static int __devinit snd_via82xx_mixer_new(via82xx_t *chip, const char *quirk_override)
{
ac97_template_t ac97;
int err;
static ac97_bus_ops_t ops = {
.write = snd_via82xx_codec_write,
.read = snd_via82xx_codec_read,
.wait = snd_via82xx_codec_wait,
};
if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
return err;
chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
chip->ac97_bus->clock = chip->ac97_clock;
chip->ac97_bus->shared_type = AC97_SHARED_TYPE_VIA;
memset(&ac97, 0, sizeof(ac97));
ac97.private_data = chip;
ac97.private_free = snd_via82xx_mixer_free_ac97;
ac97.pci = chip->pci;
if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
return err;
snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
if (chip->chip_type != TYPE_VIA686) {
/* use slot 10/11 */
snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
}
return 0;
}
#ifdef SUPPORT_JOYSTICK
#define JOYSTICK_ADDR 0x200
static int __devinit snd_via686_create_gameport(via82xx_t *chip, int dev, unsigned char *legacy)
{
struct gameport *gp;
struct resource *r;
if (!joystick[dev])
return -ENODEV;
r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
if (!r) {
printk(KERN_WARNING "via82xx: cannot reserve joystick port 0x%#x\n", JOYSTICK_ADDR);
return -EBUSY;
}
chip->gameport = gp = gameport_allocate_port();
if (!gp) {
printk(KERN_ERR "via82xx: cannot allocate memory for gameport\n");
release_resource(r);
kfree_nocheck(r);
return -ENOMEM;
}
gameport_set_name(gp, "VIA686 Gameport");
gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
gameport_set_dev_parent(gp, &chip->pci->dev);
gp->io = JOYSTICK_ADDR;
gameport_set_port_data(gp, r);
/* Enable legacy joystick port */
*legacy |= VIA_FUNC_ENABLE_GAME;
pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
gameport_register_port(chip->gameport);
return 0;
}
static void snd_via686_free_gameport(via82xx_t *chip)
{
if (chip->gameport) {
struct resource *r = gameport_get_port_data(chip->gameport);
gameport_unregister_port(chip->gameport);
chip->gameport = NULL;
release_resource(r);
kfree_nocheck(r);
}
}
#else
static inline int snd_via686_create_gameport(via82xx_t *chip, int dev, unsigned char *legacy)
{
return -ENOSYS;
}
static inline void snd_via686_free_gameport(via82xx_t *chip) { }
#endif
/*
*
*/
static int __devinit snd_via8233_init_misc(via82xx_t *chip, int dev)
{
int i, err, caps;
unsigned char val;
caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
for (i = 0; i < caps; i++) {
snd_via8233_capture_source.index = i;
err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
if (err < 0)
return err;
}
if (ac97_can_spdif(chip->ac97)) {
err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
if (err < 0)
return err;
}
if (chip->chip_type != TYPE_VIA8233A) {
/* when no h/w PCM volume control is found, use DXS volume control
* as the PCM vol control
*/
snd_ctl_elem_id_t sid;
memset(&sid, 0, sizeof(sid));
strcpy(sid.name, "PCM Playback Volume");
sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
if (! snd_ctl_find_id(chip->card, &sid)) {
err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs_volume_control, chip));
if (err < 0)
return err;
}
}
/* select spdif data slot 10/11 */
pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
return 0;
}
static int __devinit snd_via686_init_misc(via82xx_t *chip, int dev)
{
unsigned char legacy, legacy_cfg;
int rev_h = 0;
legacy = chip->old_legacy;
legacy_cfg = chip->old_legacy_cfg;
legacy |= VIA_FUNC_MIDI_IRQMASK; /* FIXME: correct? (disable MIDI) */
legacy &= ~VIA_FUNC_ENABLE_GAME; /* disable joystick */
if (chip->revision >= VIA_REV_686_H) {
rev_h = 1;
if (mpu_port[dev] >= 0x200) { /* force MIDI */
mpu_port[dev] &= 0xfffc;
pci_write_config_dword(chip->pci, 0x18, mpu_port[dev] | 0x01);
#ifdef CONFIG_PM
chip->mpu_port_saved = mpu_port[dev];
#endif
} else {
mpu_port[dev] = pci_resource_start(chip->pci, 2);
}
} else {
switch (mpu_port[dev]) { /* force MIDI */
case 0x300:
case 0x310:
case 0x320:
case 0x330:
legacy_cfg &= ~(3 << 2);
legacy_cfg |= (mpu_port[dev] & 0x0030) >> 2;
break;
default: /* no, use BIOS settings */
if (legacy & VIA_FUNC_ENABLE_MIDI)
mpu_port[dev] = 0x300 + ((legacy_cfg & 0x000c) << 2);
break;
}
}
if (mpu_port[dev] >= 0x200 &&
(chip->mpu_res = request_region(mpu_port[dev], 2, "VIA82xx MPU401")) != NULL) {
if (rev_h)
legacy |= VIA_FUNC_MIDI_PNP; /* enable PCI I/O 2 */
legacy |= VIA_FUNC_ENABLE_MIDI;
} else {
if (rev_h)
legacy &= ~VIA_FUNC_MIDI_PNP; /* disable PCI I/O 2 */
legacy &= ~VIA_FUNC_ENABLE_MIDI;
mpu_port[dev] = 0;
}
pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
if (chip->mpu_res) {
if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
mpu_port[dev], 1,
chip->irq, 0, &chip->rmidi) < 0) {
printk(KERN_WARNING "unable to initialize MPU-401 at 0x%lx, skipping\n", mpu_port[dev]);
legacy &= ~VIA_FUNC_ENABLE_MIDI;
} else {
legacy &= ~VIA_FUNC_MIDI_IRQMASK; /* enable MIDI interrupt */
}
pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
}
snd_via686_create_gameport(chip, dev, &legacy);
#ifdef CONFIG_PM
chip->legacy_saved = legacy;
chip->legacy_cfg_saved = legacy_cfg;
#endif
return 0;
}
/*
* proc interface
*/
static void snd_via82xx_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buffer)
{
via82xx_t *chip = entry->private_data;
int i;
snd_iprintf(buffer, "%s\n\n", chip->card->longname);
for (i = 0; i < 0xa0; i += 4) {
snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
}
}
static void __devinit snd_via82xx_proc_init(via82xx_t *chip)
{
snd_info_entry_t *entry;
if (! snd_card_proc_new(chip->card, "via82xx", &entry))
snd_info_set_text_ops(entry, chip, 1024, snd_via82xx_proc_read);
}
/*
*
*/
static int snd_via82xx_chip_init(via82xx_t *chip)
{
unsigned int val;
int max_count;
unsigned char pval;
#if 0 /* broken on K7M? */
if (chip->chip_type == TYPE_VIA686)
/* disable all legacy ports */
pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
#endif
pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
/* deassert ACLink reset, force SYNC */
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
VIA_ACLINK_CTRL_ENABLE |
VIA_ACLINK_CTRL_RESET |
VIA_ACLINK_CTRL_SYNC);
udelay(100);
#if 1 /* FIXME: should we do full reset here for all chip models? */
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
udelay(100);
#else
/* deassert ACLink reset, force SYNC (warm AC'97 reset) */
pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
udelay(2);
#endif
/* 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, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
udelay(100);
}
/* Make sure VRA is enabled, in case we didn't do a
* complete codec reset, above */
pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
/* 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, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
udelay(100);
}
/* wait until codec ready */
max_count = ((3 * HZ) / 4) + 1;
do {
pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
break;
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(1);
} while (--max_count > 0);
if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
snd_printk("AC'97 codec is not ready [0x%x]\n", val);
#if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
snd_via82xx_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_via82xx_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_via82xx_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 (chip->chip_type == TYPE_VIA686) {
/* route FM trap to IRQ, disable FM trap */
pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
/* disable all GPI interrupts */
outl(0, VIAREG(chip, GPI_INTR));
}
if (chip->chip_type != TYPE_VIA686) {
/* Workaround for Award BIOS bug:
* DXS channels don't work properly with VRA if MC97 is disabled.
*/
struct pci_dev *pci;
pci = pci_find_device(0x1106, 0x3068, NULL); /* MC97 */
if (pci) {
unsigned char data;
pci_read_config_byte(pci, 0x44, &data);
pci_write_config_byte(pci, 0x44, data | 0x40);
}
}
if (chip->chip_type != TYPE_VIA8233A) {
int i, idx;
for (idx = 0; idx < 4; idx++) {
unsigned long port = chip->port + 0x10 * idx;
for (i = 0; i < 2; i++)
outb(chip->playback_volume[i], port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
}
}
return 0;
}
#ifdef CONFIG_PM
/*
* power management
*/
static int snd_via82xx_suspend(snd_card_t *card, pm_message_t state)
{
via82xx_t *chip = card->pm_private_data;
int i;
for (i = 0; i < 2; i++)
if (chip->pcms[i])
snd_pcm_suspend_all(chip->pcms[i]);
for (i = 0; i < chip->num_devs; i++)
snd_via82xx_channel_reset(chip, &chip->devs[i]);
synchronize_irq(chip->irq);
snd_ac97_suspend(chip->ac97);
/* save misc values */
if (chip->chip_type != TYPE_VIA686) {
pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
}
pci_set_power_state(chip->pci, 3);
pci_disable_device(chip->pci);
return 0;
}
static int snd_via82xx_resume(snd_card_t *card)
{
via82xx_t *chip = card->pm_private_data;
int i;
pci_enable_device(chip->pci);
pci_set_power_state(chip->pci, 0);
snd_via82xx_chip_init(chip);
if (chip->chip_type == TYPE_VIA686) {
if (chip->mpu_port_saved)
pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
} else {
pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
}
snd_ac97_resume(chip->ac97);
for (i = 0; i < chip->num_devs; i++)
snd_via82xx_channel_reset(chip, &chip->devs[i]);
return 0;
}
#endif /* CONFIG_PM */
static int snd_via82xx_free(via82xx_t *chip)
{
unsigned int i;
if (chip->irq < 0)
goto __end_hw;
/* disable interrupts */
for (i = 0; i < chip->num_devs; i++)
snd_via82xx_channel_reset(chip, &chip->devs[i]);
synchronize_irq(chip->irq);
__end_hw:
if (chip->irq >= 0)
free_irq(chip->irq, (void *)chip);
if (chip->mpu_res) {
release_resource(chip->mpu_res);
kfree_nocheck(chip->mpu_res);
}
pci_release_regions(chip->pci);
if (chip->chip_type == TYPE_VIA686) {
snd_via686_free_gameport(chip);
pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
}
pci_disable_device(chip->pci);
kfree(chip);
return 0;
}
static int snd_via82xx_dev_free(snd_device_t *device)
{
via82xx_t *chip = device->device_data;
return snd_via82xx_free(chip);
}
static int __devinit snd_via82xx_create(snd_card_t * card,
struct pci_dev *pci,
int chip_type,
int revision,
unsigned int ac97_clock,
via82xx_t ** r_via)
{
via82xx_t *chip;
int err;
static snd_device_ops_t ops = {
.dev_free = snd_via82xx_dev_free,
};
if ((err = pci_enable_device(pci)) < 0)
return err;
if ((chip = kcalloc(1, sizeof(*chip), GFP_KERNEL)) == NULL) {
pci_disable_device(pci);
return -ENOMEM;
}
chip->chip_type = chip_type;
chip->revision = revision;
spin_lock_init(&chip->reg_lock);
spin_lock_init(&chip->rates[0].lock);
spin_lock_init(&chip->rates[1].lock);
chip->card = card;
chip->pci = pci;
chip->irq = -1;
pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
if ((err = pci_request_regions(pci, card->driver)) < 0) {
kfree(chip);
pci_disable_device(pci);
return err;
}
chip->port = pci_resource_start(pci, 0);
if (request_irq(pci->irq, snd_via82xx_interrupt, SA_INTERRUPT|SA_SHIRQ,
card->driver, (void *)chip)) {
snd_printk("unable to grab IRQ %d\n", pci->irq);
snd_via82xx_free(chip);
return -EBUSY;
}
chip->irq = pci->irq;
if (ac97_clock >= 8000 && ac97_clock <= 48000)
chip->ac97_clock = ac97_clock;
synchronize_irq(chip->irq);
if ((err = snd_via82xx_chip_init(chip)) < 0) {
snd_via82xx_free(chip);
return err;
}
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
snd_via82xx_free(chip);
return err;
}
/* The 8233 ac97 controller does not implement the master bit
* in the pci command register. IMHO this is a violation of the PCI spec.
* We call pci_set_master here because it does not hurt. */
pci_set_master(pci);
snd_card_set_dev(card, &pci->dev);
*r_via = chip;
return 0;
}
struct via823x_info {
int revision;
char *name;
int type;
};
static struct via823x_info via823x_cards[] __devinitdata = {
{ VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
{ VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
{ VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
{ VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
{ VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
{ VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
};
/*
* auto detection of DXS channel supports.
*/
struct dxs_whitelist {
unsigned short vendor;
unsigned short device;
unsigned short mask;
short action; /* new dxs_support value */
};
static int __devinit check_dxs_list(struct pci_dev *pci)
{
static struct dxs_whitelist whitelist[] = {
{ .vendor = 0x1005, .device = 0x4710, .action = VIA_DXS_ENABLE }, /* Avance Logic Mobo */
{ .vendor = 0x1019, .device = 0x0996, .action = VIA_DXS_48K },
{ .vendor = 0x1019, .device = 0x0a81, .action = VIA_DXS_NO_VRA }, /* ECS K7VTA3 v8.0 */
{ .vendor = 0x1019, .device = 0x0a85, .action = VIA_DXS_NO_VRA }, /* ECS L7VMM2 */
{ .vendor = 0x1025, .device = 0x0033, .action = VIA_DXS_NO_VRA }, /* Acer Inspire 1353LM */
{ .vendor = 0x1043, .device = 0x8095, .action = VIA_DXS_NO_VRA }, /* ASUS A7V8X (FIXME: possibly VIA_DXS_ENABLE?)*/
{ .vendor = 0x1043, .device = 0x80a1, .action = VIA_DXS_NO_VRA }, /* ASUS A7V8-X */
{ .vendor = 0x1043, .device = 0x80b0, .action = VIA_DXS_NO_VRA }, /* ASUS A7V600 & K8V*/
{ .vendor = 0x1043, .device = 0x812a, .action = VIA_DXS_SRC }, /* ASUS A8V Deluxe */
{ .vendor = 0x1071, .device = 0x8375, .action = VIA_DXS_NO_VRA }, /* Vobis/Yakumo/Mitac notebook */
{ .vendor = 0x10cf, .device = 0x118e, .action = VIA_DXS_ENABLE }, /* FSC laptop */
{ .vendor = 0x1106, .device = 0x4161, .action = VIA_DXS_NO_VRA }, /* ASRock K7VT2 */
{ .vendor = 0x1106, .device = 0x4552, .action = VIA_DXS_NO_VRA }, /* QDI Kudoz 7X/600-6AL */
{ .vendor = 0x1106, .device = 0xaa01, .action = VIA_DXS_NO_VRA }, /* EPIA MII */
{ .vendor = 0x1106, .device = 0xc001, .action = VIA_DXS_SRC }, /* Insight P4-ITX */
{ .vendor = 0x1297, .device = 0xa232, .action = VIA_DXS_ENABLE }, /* Shuttle ?? */
{ .vendor = 0x1297, .device = 0xc160, .action = VIA_DXS_ENABLE }, /* Shuttle SK41G */
{ .vendor = 0x1458, .device = 0xa002, .action = VIA_DXS_ENABLE }, /* Gigabyte GA-7VAXP */
{ .vendor = 0x1462, .device = 0x0080, .action = VIA_DXS_SRC }, /* MSI K8T Neo-FIS2R */
{ .vendor = 0x1462, .device = 0x3800, .action = VIA_DXS_ENABLE }, /* MSI KT266 */
{ .vendor = 0x1462, .device = 0x5901, .action = VIA_DXS_NO_VRA }, /* MSI KT6 Delta-SR */
{ .vendor = 0x1462, .device = 0x7023, .action = VIA_DXS_NO_VRA }, /* MSI K8T Neo2-FI */
{ .vendor = 0x1462, .device = 0x7120, .action = VIA_DXS_ENABLE }, /* MSI KT4V */
{ .vendor = 0x147b, .device = 0x1401, .action = VIA_DXS_ENABLE }, /* ABIT KD7(-RAID) */
{ .vendor = 0x147b, .device = 0x1411, .action = VIA_DXS_ENABLE }, /* ABIT VA-20 */
{ .vendor = 0x147b, .device = 0x1413, .action = VIA_DXS_ENABLE }, /* ABIT KV8 Pro */
{ .vendor = 0x147b, .device = 0x1415, .action = VIA_DXS_NO_VRA }, /* Abit AV8 */
{ .vendor = 0x14ff, .device = 0x0403, .action = VIA_DXS_ENABLE }, /* Twinhead mobo */
{ .vendor = 0x1584, .device = 0x8120, .action = VIA_DXS_ENABLE }, /* Gericom/Targa/Vobis/Uniwill laptop */
{ .vendor = 0x1584, .device = 0x8123, .action = VIA_DXS_NO_VRA }, /* Uniwill (Targa Visionary XP-210) */
{ .vendor = 0x161f, .device = 0x202b, .action = VIA_DXS_NO_VRA }, /* Amira Note book */
{ .vendor = 0x161f, .device = 0x2032, .action = VIA_DXS_48K }, /* m680x machines */
{ .vendor = 0x1631, .device = 0xe004, .action = VIA_DXS_ENABLE }, /* Easy Note 3174, Packard Bell */
{ .vendor = 0x1695, .device = 0x3005, .action = VIA_DXS_ENABLE }, /* EPoX EP-8K9A */
{ .vendor = 0x1849, .device = 0x3059, .action = VIA_DXS_NO_VRA }, /* ASRock K7VM2 */
{ } /* terminator */
};
struct dxs_whitelist *w;
unsigned short subsystem_vendor;
unsigned short subsystem_device;
pci_read_config_word(pci, PCI_SUBSYSTEM_VENDOR_ID, &subsystem_vendor);
pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &subsystem_device);
for (w = whitelist; w->vendor; w++) {
if (w->vendor != subsystem_vendor)
continue;
if (w->mask) {
if ((w->mask & subsystem_device) == w->device)
return w->action;
} else {
if (subsystem_device == w->device)
return w->action;
}
}
/*
* not detected, try 48k rate only to be sure.
*/
printk(KERN_INFO "via82xx: Assuming DXS channels with 48k fixed sample rate.\n");
printk(KERN_INFO " Please try dxs_support=1 or dxs_support=4 option\n");
printk(KERN_INFO " and report if it works on your machine.\n");
return VIA_DXS_48K;
};
static int __devinit snd_via82xx_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
snd_card_t *card;
via82xx_t *chip;
unsigned char revision;
int chip_type = 0, card_type;
unsigned int i;
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
if (card == NULL)
return -ENOMEM;
card_type = pci_id->driver_data;
pci_read_config_byte(pci, PCI_REVISION_ID, &revision);
switch (card_type) {
case TYPE_CARD_VIA686:
strcpy(card->driver, "VIA686A");
sprintf(card->shortname, "VIA 82C686A/B rev%x", revision);
chip_type = TYPE_VIA686;
break;
case TYPE_CARD_VIA8233:
chip_type = TYPE_VIA8233;
sprintf(card->shortname, "VIA 823x rev%x", revision);
for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
if (revision == via823x_cards[i].revision) {
chip_type = via823x_cards[i].type;
strcpy(card->shortname, via823x_cards[i].name);
break;
}
}
if (chip_type != TYPE_VIA8233A) {
if (dxs_support[dev] == VIA_DXS_AUTO)
dxs_support[dev] = check_dxs_list(pci);
/* force to use VIA8233 or 8233A model according to
* dxs_support module option
*/
if (dxs_support[dev] == VIA_DXS_DISABLE)
chip_type = TYPE_VIA8233A;
else
chip_type = TYPE_VIA8233;
}
if (chip_type == TYPE_VIA8233A)
strcpy(card->driver, "VIA8233A");
else if (revision >= VIA_REV_8237)
strcpy(card->driver, "VIA8237"); /* no slog assignment */
else
strcpy(card->driver, "VIA8233");
break;
default:
snd_printk(KERN_ERR "invalid card type %d\n", card_type);
err = -EINVAL;
goto __error;
}
if ((err = snd_via82xx_create(card, pci, chip_type, revision, ac97_clock[dev], &chip)) < 0)
goto __error;
if ((err = snd_via82xx_mixer_new(chip, ac97_quirk[dev])) < 0)
goto __error;
if (chip_type == TYPE_VIA686) {
if ((err = snd_via686_pcm_new(chip)) < 0 ||
(err = snd_via686_init_misc(chip, dev)) < 0)
goto __error;
} else {
if (chip_type == TYPE_VIA8233A) {
if ((err = snd_via8233a_pcm_new(chip)) < 0)
goto __error;
// chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
} else {
if ((err = snd_via8233_pcm_new(chip)) < 0)
goto __error;
if (dxs_support[dev] == VIA_DXS_48K)
chip->dxs_fixed = 1;
else if (dxs_support[dev] == VIA_DXS_NO_VRA)
chip->no_vra = 1;
else if (dxs_support[dev] == VIA_DXS_SRC) {
chip->no_vra = 1;
chip->dxs_src = 1;
}
}
if ((err = snd_via8233_init_misc(chip, dev)) < 0)
goto __error;
}
snd_card_set_pm_callback(card, snd_via82xx_suspend, snd_via82xx_resume, chip);
/* disable interrupts */
for (i = 0; i < chip->num_devs; i++)
snd_via82xx_channel_reset(chip, &chip->devs[i]);
snprintf(card->longname, sizeof(card->longname),
"%s with %s at %#lx, irq %d", card->shortname,
snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
snd_via82xx_proc_init(chip);
if ((err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
pci_set_drvdata(pci, card);
dev++;
return 0;
__error:
snd_card_free(card);
return err;
}
static void __devexit snd_via82xx_remove(struct pci_dev *pci)
{
snd_card_free(pci_get_drvdata(pci));
pci_set_drvdata(pci, NULL);
}
static struct pci_driver driver = {
.name = "VIA 82xx Audio",
.id_table = snd_via82xx_ids,
.probe = snd_via82xx_probe,
.remove = __devexit_p(snd_via82xx_remove),
SND_PCI_PM_CALLBACKS
};
static int __init alsa_card_via82xx_init(void)
{
return pci_register_driver(&driver);
}
static void __exit alsa_card_via82xx_exit(void)
{
pci_unregister_driver(&driver);
}
module_init(alsa_card_via82xx_init)
module_exit(alsa_card_via82xx_exit)
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