diff options
Diffstat (limited to 'sound/pci/via82xx.c')
| -rw-r--r-- | sound/pci/via82xx.c | 2346 |
1 files changed, 2346 insertions, 0 deletions
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c new file mode 100644 index 0000000..f1ce808 --- /dev/null +++ b/sound/pci/via82xx.c @@ -0,0 +1,2346 @@ +/* + * 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)"); + + +/* 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 + + +/* + */ + +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 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 rate_changed; + u32 rbits; + + if ((rate_changed = via_lock_rate(&chip->rates[0], runtime->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, 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 (! 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 __devinit 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 = 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 = 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 = 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; + } + 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_module_init(&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) |
