sound/pci/via82xx.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *   ALSA driver for VIA VT82xx (South Bridge)
   4  *
   5  *   VT82C686A/B/C, VT8233A/C, VT8235
   6  *
   7  *      Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
   8  *                         Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
   9  *                    2002 Takashi Iwai <tiwai@suse.de>
  10  */
  11
  12 /*
  13  * Changes:
  14  *
  15  * Dec. 19, 2002        Takashi Iwai <tiwai@suse.de>
  16  *      - use the DSX channels for the first pcm playback.
  17  *        (on VIA8233, 8233C and 8235 only)
  18  *        this will allow you play simultaneously up to 4 streams.
  19  *        multi-channel playback is assigned to the second device
  20  *        on these chips.
  21  *      - support the secondary capture (on VIA8233/C,8235)
  22  *      - SPDIF support
  23  *        the DSX3 channel can be used for SPDIF output.
  24  *        on VIA8233A, this channel is assigned to the second pcm
  25  *        playback.
  26  *        the card config of alsa-lib will assign the correct
  27  *        device for applications.
  28  *      - clean up the code, separate low-level initialization
  29  *        routines for each chipset.
  30  *
  31  * Sep. 26, 2005        Karsten Wiese <annabellesgarden@yahoo.de>
  32  *      - Optimize position calculation for the 823x chips.
  33  */
  34
  35 #include <linux/io.h>
  36 #include <linux/delay.h>
  37 #include <linux/interrupt.h>
  38 #include <linux/init.h>
  39 #include <linux/pci.h>
  40 #include <linux/slab.h>
  41 #include <linux/gameport.h>
  42 #include <linux/module.h>
  43 #include <sound/core.h>
  44 #include <sound/pcm.h>
  45 #include <sound/pcm_params.h>
  46 #include <sound/info.h>
  47 #include <sound/tlv.h>
  48 #include <sound/ac97_codec.h>
  49 #include <sound/mpu401.h>
  50 #include <sound/initval.h>
  51
  52 #if 0
  53 #define POINTER_DEBUG
  54 #endif
  55
  56 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  57 MODULE_DESCRIPTION("VIA VT82xx audio");
  58 MODULE_LICENSE("GPL");
  59 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
  60
  61 #if IS_REACHABLE(CONFIG_GAMEPORT)
  62 #define SUPPORT_JOYSTICK 1
  63 #endif
  64
  65 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
  66 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  67 static long mpu_port;
  68 #ifdef SUPPORT_JOYSTICK
  69 static bool joystick;
  70 #endif
  71 static int ac97_clock = 48000;
  72 static char *ac97_quirk;
  73 static int dxs_support;
  74 static int dxs_init_volume = 31;
  75 static int nodelay;
  76
  77 module_param(index, int, 0444);
  78 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
  79 module_param(id, charp, 0444);
  80 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
  81 module_param_hw(mpu_port, long, ioport, 0444);
  82 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
  83 #ifdef SUPPORT_JOYSTICK
  84 module_param(joystick, bool, 0444);
  85 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
  86 #endif
  87 module_param(ac97_clock, int, 0444);
  88 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
  89 module_param(ac97_quirk, charp, 0444);
  90 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
  91 module_param(dxs_support, int, 0444);
  92 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)");
  93 module_param(dxs_init_volume, int, 0644);
  94 MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
  95 module_param(nodelay, int, 0444);
  96 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
  97
  98 /* just for backward compatibility */
  99 static bool enable;
 100 module_param(enable, bool, 0444);
 101
 102
 103 /* revision numbers for via686 */
 104 #define VIA_REV_686_A           0x10
 105 #define VIA_REV_686_B           0x11
 106 #define VIA_REV_686_C           0x12
 107 #define VIA_REV_686_D           0x13
 108 #define VIA_REV_686_E           0x14
 109 #define VIA_REV_686_H           0x20
 110
 111 /* revision numbers for via8233 */
 112 #define VIA_REV_PRE_8233        0x10    /* not in market */
 113 #define VIA_REV_8233C           0x20    /* 2 rec, 4 pb, 1 multi-pb */
 114 #define VIA_REV_8233            0x30    /* 2 rec, 4 pb, 1 multi-pb, spdif */
 115 #define VIA_REV_8233A           0x40    /* 1 rec, 1 multi-pb, spdf */
 116 #define VIA_REV_8235            0x50    /* 2 rec, 4 pb, 1 multi-pb, spdif */
 117 #define VIA_REV_8237            0x60
 118 #define VIA_REV_8251            0x70
 119
 120 /*
 121  *  Direct registers
 122  */
 123
 124 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
 125 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
 126
 127 /* common offsets */
 128 #define VIA_REG_OFFSET_STATUS           0x00    /* byte - channel status */
 129 #define   VIA_REG_STAT_ACTIVE           0x80    /* RO */
 130 #define   VIA8233_SHADOW_STAT_ACTIVE    0x08    /* RO */
 131 #define   VIA_REG_STAT_PAUSED           0x40    /* RO */
 132 #define   VIA_REG_STAT_TRIGGER_QUEUED   0x08    /* RO */
 133 #define   VIA_REG_STAT_STOPPED          0x04    /* RWC */
 134 #define   VIA_REG_STAT_EOL              0x02    /* RWC */
 135 #define   VIA_REG_STAT_FLAG             0x01    /* RWC */
 136 #define VIA_REG_OFFSET_CONTROL          0x01    /* byte - channel control */
 137 #define   VIA_REG_CTRL_START            0x80    /* WO */
 138 #define   VIA_REG_CTRL_TERMINATE        0x40    /* WO */
 139 #define   VIA_REG_CTRL_AUTOSTART        0x20
 140 #define   VIA_REG_CTRL_PAUSE            0x08    /* RW */
 141 #define   VIA_REG_CTRL_INT_STOP         0x04
 142 #define   VIA_REG_CTRL_INT_EOL          0x02
 143 #define   VIA_REG_CTRL_INT_FLAG         0x01
 144 #define   VIA_REG_CTRL_RESET            0x01    /* RW - probably reset? undocumented */
 145 #define   VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
 146 #define VIA_REG_OFFSET_TYPE             0x02    /* byte - channel type (686 only) */
 147 #define   VIA_REG_TYPE_AUTOSTART        0x80    /* RW - autostart at EOL */
 148 #define   VIA_REG_TYPE_16BIT            0x20    /* RW */
 149 #define   VIA_REG_TYPE_STEREO           0x10    /* RW */
 150 #define   VIA_REG_TYPE_INT_LLINE        0x00
 151 #define   VIA_REG_TYPE_INT_LSAMPLE      0x04
 152 #define   VIA_REG_TYPE_INT_LESSONE      0x08
 153 #define   VIA_REG_TYPE_INT_MASK         0x0c
 154 #define   VIA_REG_TYPE_INT_EOL          0x02
 155 #define   VIA_REG_TYPE_INT_FLAG         0x01
 156 #define VIA_REG_OFFSET_TABLE_PTR        0x04    /* dword - channel table pointer */
 157 #define VIA_REG_OFFSET_CURR_PTR         0x04    /* dword - channel current pointer */
 158 #define VIA_REG_OFFSET_STOP_IDX         0x08    /* dword - stop index, channel type, sample rate */
 159 #define   VIA8233_REG_TYPE_16BIT        0x00200000      /* RW */
 160 #define   VIA8233_REG_TYPE_STEREO       0x00100000      /* RW */
 161 #define VIA_REG_OFFSET_CURR_COUNT       0x0c    /* dword - channel current count (24 bit) */
 162 #define VIA_REG_OFFSET_CURR_INDEX       0x0f    /* byte - channel current index (for via8233 only) */
 163
 164 #define DEFINE_VIA_REGSET(name,val) \
 165 enum {\
 166         VIA_REG_##name##_STATUS         = (val),\
 167         VIA_REG_##name##_CONTROL        = (val) + 0x01,\
 168         VIA_REG_##name##_TYPE           = (val) + 0x02,\
 169         VIA_REG_##name##_TABLE_PTR      = (val) + 0x04,\
 170         VIA_REG_##name##_CURR_PTR       = (val) + 0x04,\
 171         VIA_REG_##name##_STOP_IDX       = (val) + 0x08,\
 172         VIA_REG_##name##_CURR_COUNT     = (val) + 0x0c,\
 173 }
 174
 175 /* playback block */
 176 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
 177 DEFINE_VIA_REGSET(CAPTURE, 0x10);
 178 DEFINE_VIA_REGSET(FM, 0x20);
 179
 180 /* AC'97 */
 181 #define VIA_REG_AC97                    0x80    /* dword */
 182 #define   VIA_REG_AC97_CODEC_ID_MASK    (3<<30)
 183 #define   VIA_REG_AC97_CODEC_ID_SHIFT   30
 184 #define   VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
 185 #define   VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
 186 #define   VIA_REG_AC97_SECONDARY_VALID  (1<<27)
 187 #define   VIA_REG_AC97_PRIMARY_VALID    (1<<25)
 188 #define   VIA_REG_AC97_BUSY             (1<<24)
 189 #define   VIA_REG_AC97_READ             (1<<23)
 190 #define   VIA_REG_AC97_CMD_SHIFT        16
 191 #define   VIA_REG_AC97_CMD_MASK         0x7e
 192 #define   VIA_REG_AC97_DATA_SHIFT       0
 193 #define   VIA_REG_AC97_DATA_MASK        0xffff
 194
 195 #define VIA_REG_SGD_SHADOW              0x84    /* dword */
 196 /* via686 */
 197 #define   VIA_REG_SGD_STAT_PB_FLAG      (1<<0)
 198 #define   VIA_REG_SGD_STAT_CP_FLAG      (1<<1)
 199 #define   VIA_REG_SGD_STAT_FM_FLAG      (1<<2)
 200 #define   VIA_REG_SGD_STAT_PB_EOL       (1<<4)
 201 #define   VIA_REG_SGD_STAT_CP_EOL       (1<<5)
 202 #define   VIA_REG_SGD_STAT_FM_EOL       (1<<6)
 203 #define   VIA_REG_SGD_STAT_PB_STOP      (1<<8)
 204 #define   VIA_REG_SGD_STAT_CP_STOP      (1<<9)
 205 #define   VIA_REG_SGD_STAT_FM_STOP      (1<<10)
 206 #define   VIA_REG_SGD_STAT_PB_ACTIVE    (1<<12)
 207 #define   VIA_REG_SGD_STAT_CP_ACTIVE    (1<<13)
 208 #define   VIA_REG_SGD_STAT_FM_ACTIVE    (1<<14)
 209 /* via8233 */
 210 #define   VIA8233_REG_SGD_STAT_FLAG     (1<<0)
 211 #define   VIA8233_REG_SGD_STAT_EOL      (1<<1)
 212 #define   VIA8233_REG_SGD_STAT_STOP     (1<<2)
 213 #define   VIA8233_REG_SGD_STAT_ACTIVE   (1<<3)
 214 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
 215 #define   VIA8233_REG_SGD_CHAN_SDX      0
 216 #define   VIA8233_REG_SGD_CHAN_MULTI    4
 217 #define   VIA8233_REG_SGD_CHAN_REC      6
 218 #define   VIA8233_REG_SGD_CHAN_REC1     7
 219
 220 #define VIA_REG_GPI_STATUS              0x88
 221 #define VIA_REG_GPI_INTR                0x8c
 222
 223 /* multi-channel and capture registers for via8233 */
 224 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
 225 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
 226
 227 /* via8233-specific registers */
 228 #define VIA_REG_OFS_PLAYBACK_VOLUME_L   0x02    /* byte */
 229 #define VIA_REG_OFS_PLAYBACK_VOLUME_R   0x03    /* byte */
 230 #define VIA_REG_OFS_MULTPLAY_FORMAT     0x02    /* byte - format and channels */
 231 #define   VIA_REG_MULTPLAY_FMT_8BIT     0x00
 232 #define   VIA_REG_MULTPLAY_FMT_16BIT    0x80
 233 #define   VIA_REG_MULTPLAY_FMT_CH_MASK  0x70    /* # channels << 4 (valid = 1,2,4,6) */
 234 #define VIA_REG_OFS_CAPTURE_FIFO        0x02    /* byte - bit 6 = fifo  enable */
 235 #define   VIA_REG_CAPTURE_FIFO_ENABLE   0x40
 236
 237 #define VIA_DXS_MAX_VOLUME              31      /* max. volume (attenuation) of reg 0x32/33 */
 238
 239 #define VIA_REG_CAPTURE_CHANNEL         0x63    /* byte - input select */
 240 #define   VIA_REG_CAPTURE_CHANNEL_MIC   0x4
 241 #define   VIA_REG_CAPTURE_CHANNEL_LINE  0
 242 #define   VIA_REG_CAPTURE_SELECT_CODEC  0x03    /* recording source codec (0 = primary) */
 243
 244 #define VIA_TBL_BIT_FLAG        0x40000000
 245 #define VIA_TBL_BIT_EOL         0x80000000
 246
 247 /* pci space */
 248 #define VIA_ACLINK_STAT         0x40
 249 #define  VIA_ACLINK_C11_READY   0x20
 250 #define  VIA_ACLINK_C10_READY   0x10
 251 #define  VIA_ACLINK_C01_READY   0x04 /* secondary codec ready */
 252 #define  VIA_ACLINK_LOWPOWER    0x02 /* low-power state */
 253 #define  VIA_ACLINK_C00_READY   0x01 /* primary codec ready */
 254 #define VIA_ACLINK_CTRL         0x41
 255 #define  VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
 256 #define  VIA_ACLINK_CTRL_RESET  0x40 /* 0: assert, 1: de-assert */
 257 #define  VIA_ACLINK_CTRL_SYNC   0x20 /* 0: release SYNC, 1: force SYNC hi */
 258 #define  VIA_ACLINK_CTRL_SDO    0x10 /* 0: release SDO, 1: force SDO hi */
 259 #define  VIA_ACLINK_CTRL_VRA    0x08 /* 0: disable VRA, 1: enable VRA */
 260 #define  VIA_ACLINK_CTRL_PCM    0x04 /* 0: disable PCM, 1: enable PCM */
 261 #define  VIA_ACLINK_CTRL_FM     0x02 /* via686 only */
 262 #define  VIA_ACLINK_CTRL_SB     0x01 /* via686 only */
 263 #define  VIA_ACLINK_CTRL_INIT   (VIA_ACLINK_CTRL_ENABLE|\
 264                                  VIA_ACLINK_CTRL_RESET|\
 265                                  VIA_ACLINK_CTRL_PCM|\
 266                                  VIA_ACLINK_CTRL_VRA)
 267 #define VIA_FUNC_ENABLE         0x42
 268 #define  VIA_FUNC_MIDI_PNP      0x80 /* FIXME: it's 0x40 in the datasheet! */
 269 #define  VIA_FUNC_MIDI_IRQMASK  0x40 /* FIXME: not documented! */
 270 #define  VIA_FUNC_RX2C_WRITE    0x20
 271 #define  VIA_FUNC_SB_FIFO_EMPTY 0x10
 272 #define  VIA_FUNC_ENABLE_GAME   0x08
 273 #define  VIA_FUNC_ENABLE_FM     0x04
 274 #define  VIA_FUNC_ENABLE_MIDI   0x02
 275 #define  VIA_FUNC_ENABLE_SB     0x01
 276 #define VIA_PNP_CONTROL         0x43
 277 #define VIA_FM_NMI_CTRL         0x48
 278 #define VIA8233_VOLCHG_CTRL     0x48
 279 #define VIA8233_SPDIF_CTRL      0x49
 280 #define  VIA8233_SPDIF_DX3      0x08
 281 #define  VIA8233_SPDIF_SLOT_MASK        0x03
 282 #define  VIA8233_SPDIF_SLOT_1011        0x00
 283 #define  VIA8233_SPDIF_SLOT_34          0x01
 284 #define  VIA8233_SPDIF_SLOT_78          0x02
 285 #define  VIA8233_SPDIF_SLOT_69          0x03
 286
 287 /*
 288  */
 289
 290 #define VIA_DXS_AUTO    0
 291 #define VIA_DXS_ENABLE  1
 292 #define VIA_DXS_DISABLE 2
 293 #define VIA_DXS_48K     3
 294 #define VIA_DXS_NO_VRA  4
 295 #define VIA_DXS_SRC     5
 296
 297
 298 /*
 299  * pcm stream
 300  */
 301
 302 struct snd_via_sg_table {
 303         unsigned int offset;
 304         unsigned int size;
 305 } ;
 306
 307 #define VIA_TABLE_SIZE  255
 308 #define VIA_MAX_BUFSIZE (1<<24)
 309
 310 struct viadev {
 311         unsigned int reg_offset;
 312         unsigned long port;
 313         int direction;  /* playback = 0, capture = 1 */
 314         struct snd_pcm_substream *substream;
 315         int running;
 316         unsigned int tbl_entries; /* # descriptors */
 317         struct snd_dma_buffer table;
 318         struct snd_via_sg_table *idx_table;
 319         /* for recovery from the unexpected pointer */
 320         unsigned int lastpos;
 321         unsigned int fragsize;
 322         unsigned int bufsize;
 323         unsigned int bufsize2;
 324         int hwptr_done;         /* processed frame position in the buffer */
 325         int in_interrupt;
 326         int shadow_shift;
 327 };
 328
 329
 330 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
 331 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
 332
 333 #define VIA_MAX_DEVS    7       /* 4 playback, 1 multi, 2 capture */
 334
 335 struct via_rate_lock {
 336         spinlock_t lock;
 337         int rate;
 338         int used;
 339 };
 340
 341 struct via82xx {
 342         int irq;
 343
 344         unsigned long port;
 345         struct resource *mpu_res;
 346         int chip_type;
 347         unsigned char revision;
 348
 349         unsigned char old_legacy;
 350         unsigned char old_legacy_cfg;
 351 #ifdef CONFIG_PM_SLEEP
 352         unsigned char legacy_saved;
 353         unsigned char legacy_cfg_saved;
 354         unsigned char spdif_ctrl_saved;
 355         unsigned char capture_src_saved[2];
 356         unsigned int mpu_port_saved;
 357 #endif
 358
 359         unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
 360         unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
 361
 362         unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
 363
 364         struct pci_dev *pci;
 365         struct snd_card *card;
 366
 367         unsigned int num_devs;
 368         unsigned int playback_devno, multi_devno, capture_devno;
 369         struct viadev devs[VIA_MAX_DEVS];
 370         struct via_rate_lock rates[2]; /* playback and capture */
 371         unsigned int dxs_fixed: 1;      /* DXS channel accepts only 48kHz */
 372         unsigned int no_vra: 1;         /* no need to set VRA on DXS channels */
 373         unsigned int dxs_src: 1;        /* use full SRC capabilities of DXS */
 374         unsigned int spdif_on: 1;       /* only spdif rates work to external DACs */
 375
 376         struct snd_pcm *pcms[2];
 377         struct snd_rawmidi *rmidi;
 378         struct snd_kcontrol *dxs_controls[4];
 379
 380         struct snd_ac97_bus *ac97_bus;
 381         struct snd_ac97 *ac97;
 382         unsigned int ac97_clock;
 383         unsigned int ac97_secondary;    /* secondary AC'97 codec is present */
 384
 385         spinlock_t reg_lock;
 386         struct snd_info_entry *proc_entry;
 387
 388 #ifdef SUPPORT_JOYSTICK
 389         struct gameport *gameport;
 390 #endif
 391 };
 392
 393 static const struct pci_device_id snd_via82xx_ids[] = {
 394         /* 0x1106, 0x3058 */
 395         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, },    /* 686A */
 396         /* 0x1106, 0x3059 */
 397         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, },     /* VT8233 */
 398         { 0, }
 399 };
 400
 401 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
 402
 403 /*
 404  */
 405
 406 /*
 407  * allocate and initialize the descriptor buffers
 408  * periods = number of periods
 409  * fragsize = period size in bytes
 410  */
 411 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
 412                            struct pci_dev *pci,
 413                            unsigned int periods, unsigned int fragsize)
 414 {
 415         unsigned int i, idx, ofs, rest;
 416         struct via82xx *chip = snd_pcm_substream_chip(substream);
 417
 418         if (dev->table.area == NULL) {
 419                 /* the start of each lists must be aligned to 8 bytes,
 420                  * but the kernel pages are much bigger, so we don't care
 421                  */
 422                 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
 423                                         PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
 424                                         &dev->table) < 0)
 425                         return -ENOMEM;
 426         }
 427         if (! dev->idx_table) {
 428                 dev->idx_table = kmalloc_array(VIA_TABLE_SIZE,
 429                                                sizeof(*dev->idx_table),
 430                                                GFP_KERNEL);
 431                 if (! dev->idx_table)
 432                         return -ENOMEM;
 433         }
 434
 435         /* fill the entries */
 436         idx = 0;
 437         ofs = 0;
 438         for (i = 0; i < periods; i++) {
 439                 rest = fragsize;
 440                 /* fill descriptors for a period.
 441                  * a period can be split to several descriptors if it's
 442                  * over page boundary.
 443                  */
 444                 do {
 445                         unsigned int r;
 446                         unsigned int flag;
 447                         unsigned int addr;
 448
 449                         if (idx >= VIA_TABLE_SIZE) {
 450                                 dev_err(&pci->dev, "too much table size!\n");
 451                                 return -EINVAL;
 452                         }
 453                         addr = snd_pcm_sgbuf_get_addr(substream, ofs);
 454                         ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
 455                         r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
 456                         rest -= r;
 457                         if (! rest) {
 458                                 if (i == periods - 1)
 459                                         flag = VIA_TBL_BIT_EOL; /* buffer boundary */
 460                                 else
 461                                         flag = VIA_TBL_BIT_FLAG; /* period boundary */
 462                         } else
 463                                 flag = 0; /* period continues to the next */
 464                         /*
 465                         dev_dbg(&pci->dev,
 466                                 "tbl %d: at %d  size %d (rest %d)\n",
 467                                 idx, ofs, r, rest);
 468                         */
 469                         ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
 470                         dev->idx_table[idx].offset = ofs;
 471                         dev->idx_table[idx].size = r;
 472                         ofs += r;
 473                         idx++;
 474                 } while (rest > 0);
 475         }
 476         dev->tbl_entries = idx;
 477         dev->bufsize = periods * fragsize;
 478         dev->bufsize2 = dev->bufsize / 2;
 479         dev->fragsize = fragsize;
 480         return 0;
 481 }
 482
 483
 484 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
 485                            struct pci_dev *pci)
 486 {
 487         if (dev->table.area) {
 488                 snd_dma_free_pages(&dev->table);
 489                 dev->table.area = NULL;
 490         }
 491         kfree(dev->idx_table);
 492         dev->idx_table = NULL;
 493         return 0;
 494 }
 495
 496 /*
 497  *  Basic I/O
 498  */
 499
 500 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
 501 {
 502         return inl(VIAREG(chip, AC97));
 503 }
 504
 505 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
 506 {
 507         outl(val, VIAREG(chip, AC97));
 508 }
 509
 510 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
 511 {
 512         unsigned int timeout = 1000;    /* 1ms */
 513         unsigned int val;
 514
 515         while (timeout-- > 0) {
 516                 udelay(1);
 517                 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
 518                         return val & 0xffff;
 519         }
 520         dev_err(chip->card->dev, "codec_ready: codec %i is not ready [0x%x]\n",
 521                    secondary, snd_via82xx_codec_xread(chip));
 522         return -EIO;
 523 }
 524
 525 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
 526 {
 527         unsigned int timeout = 1000;    /* 1ms */
 528         unsigned int val, val1;
 529         unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
 530                                          VIA_REG_AC97_SECONDARY_VALID;
 531
 532         while (timeout-- > 0) {
 533                 val = snd_via82xx_codec_xread(chip);
 534                 val1 = val & (VIA_REG_AC97_BUSY | stat);
 535                 if (val1 == stat)
 536                         return val & 0xffff;
 537                 udelay(1);
 538         }
 539         return -EIO;
 540 }
 541
 542 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
 543 {
 544         struct via82xx *chip = ac97->private_data;
 545         int err;
 546         err = snd_via82xx_codec_ready(chip, ac97->num);
 547         /* here we need to wait fairly for long time.. */
 548         if (!nodelay)
 549                 msleep(500);
 550 }
 551
 552 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
 553                                     unsigned short reg,
 554                                     unsigned short val)
 555 {
 556         struct via82xx *chip = ac97->private_data;
 557         unsigned int xval;
 558
 559         xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
 560         xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
 561         xval |= reg << VIA_REG_AC97_CMD_SHIFT;
 562         xval |= val << VIA_REG_AC97_DATA_SHIFT;
 563         snd_via82xx_codec_xwrite(chip, xval);
 564         snd_via82xx_codec_ready(chip, ac97->num);
 565 }
 566
 567 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 568 {
 569         struct via82xx *chip = ac97->private_data;
 570         unsigned int xval, val = 0xffff;
 571         int again = 0;
 572
 573         xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
 574         xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
 575         xval |= VIA_REG_AC97_READ;
 576         xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
 577         while (1) {
 578                 if (again++ > 3) {
 579                         dev_err(chip->card->dev,
 580                                 "codec_read: codec %i is not valid [0x%x]\n",
 581                                    ac97->num, snd_via82xx_codec_xread(chip));
 582                         return 0xffff;
 583                 }
 584                 snd_via82xx_codec_xwrite(chip, xval);
 585                 udelay (20);
 586                 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
 587                         udelay(25);
 588                         val = snd_via82xx_codec_xread(chip);
 589                         break;
 590                 }
 591         }
 592         return val & 0xffff;
 593 }
 594
 595 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
 596 {
 597         outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
 598              VIADEV_REG(viadev, OFFSET_CONTROL));
 599         inb(VIADEV_REG(viadev, OFFSET_CONTROL));
 600         udelay(50);
 601         /* disable interrupts */
 602         outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
 603         /* clear interrupts */
 604         outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
 605         outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
 606         // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
 607         viadev->lastpos = 0;
 608         viadev->hwptr_done = 0;
 609 }
 610
 611
 612 /*
 613  *  Interrupt handler
 614  *  Used for 686 and 8233A
 615  */
 616 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
 617 {
 618         struct via82xx *chip = dev_id;
 619         unsigned int status;
 620         unsigned int i;
 621
 622         status = inl(VIAREG(chip, SGD_SHADOW));
 623         if (! (status & chip->intr_mask)) {
 624                 if (chip->rmidi)
 625                         /* check mpu401 interrupt */
 626                         return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
 627                 return IRQ_NONE;
 628         }
 629
 630         /* check status for each stream */
 631         spin_lock(&chip->reg_lock);
 632         for (i = 0; i < chip->num_devs; i++) {
 633                 struct viadev *viadev = &chip->devs[i];
 634                 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
 635                 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
 636                         continue;
 637                 if (viadev->substream && viadev->running) {
 638                         /*
 639                          * Update hwptr_done based on 'period elapsed'
 640                          * interrupts. We'll use it, when the chip returns 0
 641                          * for OFFSET_CURR_COUNT.
 642                          */
 643                         if (c_status & VIA_REG_STAT_EOL)
 644                                 viadev->hwptr_done = 0;
 645                         else
 646                                 viadev->hwptr_done += viadev->fragsize;
 647                         viadev->in_interrupt = c_status;
 648                         spin_unlock(&chip->reg_lock);
 649                         snd_pcm_period_elapsed(viadev->substream);
 650                         spin_lock(&chip->reg_lock);
 651                         viadev->in_interrupt = 0;
 652                 }
 653                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
 654         }
 655         spin_unlock(&chip->reg_lock);
 656         return IRQ_HANDLED;
 657 }
 658
 659 /*
 660  *  Interrupt handler
 661  */
 662 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
 663 {
 664         struct via82xx *chip = dev_id;
 665         unsigned int status;
 666         unsigned int i;
 667         int irqreturn = 0;
 668
 669         /* check status for each stream */
 670         spin_lock(&chip->reg_lock);
 671         status = inl(VIAREG(chip, SGD_SHADOW));
 672
 673         for (i = 0; i < chip->num_devs; i++) {
 674                 struct viadev *viadev = &chip->devs[i];
 675                 struct snd_pcm_substream *substream;
 676                 unsigned char c_status, shadow_status;
 677
 678                 shadow_status = (status >> viadev->shadow_shift) &
 679                         (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
 680                          VIA_REG_STAT_FLAG);
 681                 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
 682                 if (!c_status)
 683                         continue;
 684
 685                 substream = viadev->substream;
 686                 if (substream && viadev->running) {
 687                         /*
 688                          * Update hwptr_done based on 'period elapsed'
 689                          * interrupts. We'll use it, when the chip returns 0
 690                          * for OFFSET_CURR_COUNT.
 691                          */
 692                         if (c_status & VIA_REG_STAT_EOL)
 693                                 viadev->hwptr_done = 0;
 694                         else
 695                                 viadev->hwptr_done += viadev->fragsize;
 696                         viadev->in_interrupt = c_status;
 697                         if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
 698                                 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
 699                         spin_unlock(&chip->reg_lock);
 700
 701                         snd_pcm_period_elapsed(substream);
 702
 703                         spin_lock(&chip->reg_lock);
 704                         viadev->in_interrupt = 0;
 705                 }
 706                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
 707                 irqreturn = 1;
 708         }
 709         spin_unlock(&chip->reg_lock);
 710         return IRQ_RETVAL(irqreturn);
 711 }
 712
 713 /*
 714  *  PCM callbacks
 715  */
 716
 717 /*
 718  * trigger callback
 719  */
 720 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 721 {
 722         struct via82xx *chip = snd_pcm_substream_chip(substream);
 723         struct viadev *viadev = substream->runtime->private_data;
 724         unsigned char val;
 725
 726         if (chip->chip_type != TYPE_VIA686)
 727                 val = VIA_REG_CTRL_INT;
 728         else
 729                 val = 0;
 730         switch (cmd) {
 731         case SNDRV_PCM_TRIGGER_START:
 732         case SNDRV_PCM_TRIGGER_RESUME:
 733                 val |= VIA_REG_CTRL_START;
 734                 viadev->running = 1;
 735                 break;
 736         case SNDRV_PCM_TRIGGER_STOP:
 737         case SNDRV_PCM_TRIGGER_SUSPEND:
 738                 val = VIA_REG_CTRL_TERMINATE;
 739                 viadev->running = 0;
 740                 break;
 741         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 742                 val |= VIA_REG_CTRL_PAUSE;
 743                 viadev->running = 0;
 744                 break;
 745         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 746                 viadev->running = 1;
 747                 break;
 748         default:
 749                 return -EINVAL;
 750         }
 751         outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
 752         if (cmd == SNDRV_PCM_TRIGGER_STOP)
 753                 snd_via82xx_channel_reset(chip, viadev);
 754         return 0;
 755 }
 756
 757
 758 /*
 759  * pointer callbacks
 760  */
 761
 762 /*
 763  * calculate the linear position at the given sg-buffer index and the rest count
 764  */
 765
 766 #define check_invalid_pos(viadev,pos) \
 767         ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
 768                                      viadev->lastpos < viadev->bufsize2))
 769
 770 static inline unsigned int calc_linear_pos(struct via82xx *chip,
 771                                            struct viadev *viadev,
 772                                            unsigned int idx,
 773                                            unsigned int count)
 774 {
 775         unsigned int size, base, res;
 776
 777         size = viadev->idx_table[idx].size;
 778         base = viadev->idx_table[idx].offset;
 779         res = base + size - count;
 780         if (res >= viadev->bufsize)
 781                 res -= viadev->bufsize;
 782
 783         /* check the validity of the calculated position */
 784         if (size < count) {
 785                 dev_dbg(chip->card->dev,
 786                         "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
 787                            (int)size, (int)count);
 788                 res = viadev->lastpos;
 789         } else {
 790                 if (! count) {
 791                         /* Some mobos report count = 0 on the DMA boundary,
 792                          * i.e. count = size indeed.
 793                          * Let's check whether this step is above the expected size.
 794                          */
 795                         int delta = res - viadev->lastpos;
 796                         if (delta < 0)
 797                                 delta += viadev->bufsize;
 798                         if ((unsigned int)delta > viadev->fragsize)
 799                                 res = base;
 800                 }
 801                 if (check_invalid_pos(viadev, res)) {
 802 #ifdef POINTER_DEBUG
 803                         dev_dbg(chip->card->dev,
 804                                 "fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n",
 805                                 idx, viadev->tbl_entries,
 806                                viadev->lastpos, viadev->bufsize2,
 807                                viadev->idx_table[idx].offset,
 808                                viadev->idx_table[idx].size, count);
 809 #endif
 810                         /* count register returns full size when end of buffer is reached */
 811                         res = base + size;
 812                         if (check_invalid_pos(viadev, res)) {
 813                                 dev_dbg(chip->card->dev,
 814                                         "invalid via82xx_cur_ptr (2), using last valid pointer\n");
 815                                 res = viadev->lastpos;
 816                         }
 817                 }
 818         }
 819         return res;
 820 }
 821
 822 /*
 823  * get the current pointer on via686
 824  */
 825 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
 826 {
 827         struct via82xx *chip = snd_pcm_substream_chip(substream);
 828         struct viadev *viadev = substream->runtime->private_data;
 829         unsigned int idx, ptr, count, res;
 830
 831         if (snd_BUG_ON(!viadev->tbl_entries))
 832                 return 0;
 833         if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
 834                 return 0;
 835
 836         spin_lock(&chip->reg_lock);
 837         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
 838         /* The via686a does not have the current index register,
 839          * so we need to calculate the index from CURR_PTR.
 840          */
 841         ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
 842         if (ptr <= (unsigned int)viadev->table.addr)
 843                 idx = 0;
 844         else /* CURR_PTR holds the address + 8 */
 845                 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
 846         res = calc_linear_pos(chip, viadev, idx, count);
 847         viadev->lastpos = res; /* remember the last position */
 848         spin_unlock(&chip->reg_lock);
 849
 850         return bytes_to_frames(substream->runtime, res);
 851 }
 852
 853 /*
 854  * get the current pointer on via823x
 855  */
 856 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
 857 {
 858         struct via82xx *chip = snd_pcm_substream_chip(substream);
 859         struct viadev *viadev = substream->runtime->private_data;
 860         unsigned int idx, count, res;
 861         int status;
 862
 863         if (snd_BUG_ON(!viadev->tbl_entries))
 864                 return 0;
 865
 866         spin_lock(&chip->reg_lock);
 867         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
 868         status = viadev->in_interrupt;
 869         if (!status)
 870                 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
 871
 872         /* An apparent bug in the 8251 is worked around by sending a
 873          * REG_CTRL_START. */
 874         if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
 875                 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
 876
 877         if (!(status & VIA_REG_STAT_ACTIVE)) {
 878                 res = 0;
 879                 goto unlock;
 880         }
 881         if (count & 0xffffff) {
 882                 idx = count >> 24;
 883                 if (idx >= viadev->tbl_entries) {
 884 #ifdef POINTER_DEBUG
 885                         dev_dbg(chip->card->dev,
 886                                 "fail: invalid idx = %i/%i\n", idx,
 887                                viadev->tbl_entries);
 888 #endif
 889                         res = viadev->lastpos;
 890                 } else {
 891                         count &= 0xffffff;
 892                         res = calc_linear_pos(chip, viadev, idx, count);
 893                 }
 894         } else {
 895                 res = viadev->hwptr_done;
 896                 if (!viadev->in_interrupt) {
 897                         if (status & VIA_REG_STAT_EOL) {
 898                                 res = 0;
 899                         } else
 900                                 if (status & VIA_REG_STAT_FLAG) {
 901                                         res += viadev->fragsize;
 902                                 }
 903                 }
 904         }
 905 unlock:
 906         viadev->lastpos = res;
 907         spin_unlock(&chip->reg_lock);
 908
 909         return bytes_to_frames(substream->runtime, res);
 910 }
 911
 912
 913 /*
 914  * hw_params callback:
 915  * allocate the buffer and build up the buffer description table
 916  */
 917 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
 918                                  struct snd_pcm_hw_params *hw_params)
 919 {
 920         struct via82xx *chip = snd_pcm_substream_chip(substream);
 921         struct viadev *viadev = substream->runtime->private_data;
 922         int err;
 923
 924         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 925         if (err < 0)
 926                 return err;
 927         err = build_via_table(viadev, substream, chip->pci,
 928                               params_periods(hw_params),
 929                               params_period_bytes(hw_params));
 930         if (err < 0)
 931                 return err;
 932
 933         return 0;
 934 }
 935
 936 /*
 937  * hw_free callback:
 938  * clean up the buffer description table and release the buffer
 939  */
 940 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
 941 {
 942         struct via82xx *chip = snd_pcm_substream_chip(substream);
 943         struct viadev *viadev = substream->runtime->private_data;
 944
 945         clean_via_table(viadev, substream, chip->pci);
 946         snd_pcm_lib_free_pages(substream);
 947         return 0;
 948 }
 949
 950
 951 /*
 952  * set up the table pointer
 953  */
 954 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
 955 {
 956         snd_via82xx_codec_ready(chip, 0);
 957         outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
 958         udelay(20);
 959         snd_via82xx_codec_ready(chip, 0);
 960 }
 961
 962 /*
 963  * prepare callback for playback and capture on via686
 964  */
 965 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
 966                                 struct snd_pcm_runtime *runtime)
 967 {
 968         snd_via82xx_channel_reset(chip, viadev);
 969         /* this must be set after channel_reset */
 970         snd_via82xx_set_table_ptr(chip, viadev);
 971         outb(VIA_REG_TYPE_AUTOSTART |
 972              (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
 973              (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
 974              ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
 975              VIA_REG_TYPE_INT_EOL |
 976              VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
 977 }
 978
 979 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
 980 {
 981         struct via82xx *chip = snd_pcm_substream_chip(substream);
 982         struct viadev *viadev = substream->runtime->private_data;
 983         struct snd_pcm_runtime *runtime = substream->runtime;
 984
 985         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
 986         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
 987         via686_setup_format(chip, viadev, runtime);
 988         return 0;
 989 }
 990
 991 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
 992 {
 993         struct via82xx *chip = snd_pcm_substream_chip(substream);
 994         struct viadev *viadev = substream->runtime->private_data;
 995         struct snd_pcm_runtime *runtime = substream->runtime;
 996
 997         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
 998         via686_setup_format(chip, viadev, runtime);
 999         return 0;
1000 }
1001
1002 /*
1003  * lock the current rate
1004  */
1005 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1006 {
1007         int changed = 0;
1008
1009         spin_lock_irq(&rec->lock);
1010         if (rec->rate != rate) {
1011                 if (rec->rate && rec->used > 1) /* already set */
1012                         changed = -EINVAL;
1013                 else {
1014                         rec->rate = rate;
1015                         changed = 1;
1016                 }
1017         }
1018         spin_unlock_irq(&rec->lock);
1019         return changed;
1020 }
1021
1022 /*
1023  * prepare callback for DSX playback on via823x
1024  */
1025 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1026 {
1027         struct via82xx *chip = snd_pcm_substream_chip(substream);
1028         struct viadev *viadev = substream->runtime->private_data;
1029         struct snd_pcm_runtime *runtime = substream->runtime;
1030         int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1031         int rate_changed;
1032         u32 rbits;
1033
1034         if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1035                 return rate_changed;
1036         if (rate_changed)
1037                 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1038                                   chip->no_vra ? 48000 : runtime->rate);
1039         if (chip->spdif_on && viadev->reg_offset == 0x30)
1040                 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1041
1042         if (runtime->rate == 48000)
1043                 rbits = 0xfffff;
1044         else
1045                 rbits = (0x100000 / 48000) * runtime->rate +
1046                         ((0x100000 % 48000) * runtime->rate) / 48000;
1047         snd_BUG_ON(rbits & ~0xfffff);
1048         snd_via82xx_channel_reset(chip, viadev);
1049         snd_via82xx_set_table_ptr(chip, viadev);
1050         outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1051              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1052         outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1053              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1054         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1055              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1056              rbits | /* rate */
1057              0xff000000,    /* STOP index is never reached */
1058              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1059         udelay(20);
1060         snd_via82xx_codec_ready(chip, 0);
1061         return 0;
1062 }
1063
1064 /*
1065  * prepare callback for multi-channel playback on via823x
1066  */
1067 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1068 {
1069         struct via82xx *chip = snd_pcm_substream_chip(substream);
1070         struct viadev *viadev = substream->runtime->private_data;
1071         struct snd_pcm_runtime *runtime = substream->runtime;
1072         unsigned int slots;
1073         int fmt;
1074
1075         if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1076                 return -EINVAL;
1077         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1078         snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1079         snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1080         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1081         snd_via82xx_channel_reset(chip, viadev);
1082         snd_via82xx_set_table_ptr(chip, viadev);
1083
1084         fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1085                 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1086         fmt |= runtime->channels << 4;
1087         outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1088 #if 0
1089         if (chip->revision == VIA_REV_8233A)
1090                 slots = 0;
1091         else
1092 #endif
1093         {
1094                 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1095                 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1096                 switch (runtime->channels) {
1097                 case 1: slots = (1<<0) | (1<<4); break;
1098                 case 2: slots = (1<<0) | (2<<4); break;
1099                 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1100                 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1101                 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1102                 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1103                 default: slots = 0; break;
1104                 }
1105         }
1106         /* STOP index is never reached */
1107         outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1108         udelay(20);
1109         snd_via82xx_codec_ready(chip, 0);
1110         return 0;
1111 }
1112
1113 /*
1114  * prepare callback for capture on via823x
1115  */
1116 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1117 {
1118         struct via82xx *chip = snd_pcm_substream_chip(substream);
1119         struct viadev *viadev = substream->runtime->private_data;
1120         struct snd_pcm_runtime *runtime = substream->runtime;
1121
1122         if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1123                 return -EINVAL;
1124         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1125         snd_via82xx_channel_reset(chip, viadev);
1126         snd_via82xx_set_table_ptr(chip, viadev);
1127         outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1128         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1129              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1130              0xff000000,    /* STOP index is never reached */
1131              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1132         udelay(20);
1133         snd_via82xx_codec_ready(chip, 0);
1134         return 0;
1135 }
1136
1137
1138 /*
1139  * pcm hardware definition, identical for both playback and capture
1140  */
1141 static const struct snd_pcm_hardware snd_via82xx_hw =
1142 {
1143         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1144                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1145                                  SNDRV_PCM_INFO_MMAP_VALID |
1146                                  /* SNDRV_PCM_INFO_RESUME | */
1147                                  SNDRV_PCM_INFO_PAUSE),
1148         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1149         .rates =                SNDRV_PCM_RATE_48000,
1150         .rate_min =             48000,
1151         .rate_max =             48000,
1152         .channels_min =         1,
1153         .channels_max =         2,
1154         .buffer_bytes_max =     VIA_MAX_BUFSIZE,
1155         .period_bytes_min =     32,
1156         .period_bytes_max =     VIA_MAX_BUFSIZE / 2,
1157         .periods_min =          2,
1158         .periods_max =          VIA_TABLE_SIZE / 2,
1159         .fifo_size =            0,
1160 };
1161
1162
1163 /*
1164  * open callback skeleton
1165  */
1166 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1167                                 struct snd_pcm_substream *substream)
1168 {
1169         struct snd_pcm_runtime *runtime = substream->runtime;
1170         int err;
1171         struct via_rate_lock *ratep;
1172         bool use_src = false;
1173
1174         runtime->hw = snd_via82xx_hw;
1175
1176         /* set the hw rate condition */
1177         ratep = &chip->rates[viadev->direction];
1178         spin_lock_irq(&ratep->lock);
1179         ratep->used++;
1180         if (chip->spdif_on && viadev->reg_offset == 0x30) {
1181                 /* DXS#3 and spdif is on */
1182                 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1183                 snd_pcm_limit_hw_rates(runtime);
1184         } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1185                 /* fixed DXS playback rate */
1186                 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1187                 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1188         } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1189                 /* use full SRC capabilities of DXS */
1190                 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1191                                      SNDRV_PCM_RATE_8000_48000);
1192                 runtime->hw.rate_min = 8000;
1193                 runtime->hw.rate_max = 48000;
1194                 use_src = true;
1195         } else if (! ratep->rate) {
1196                 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1197                 runtime->hw.rates = chip->ac97->rates[idx];
1198                 snd_pcm_limit_hw_rates(runtime);
1199         } else {
1200                 /* a fixed rate */
1201                 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1202                 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1203         }
1204         spin_unlock_irq(&ratep->lock);
1205
1206         /* we may remove following constaint when we modify table entries
1207            in interrupt */
1208         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1209                 return err;
1210
1211         if (use_src) {
1212                 err = snd_pcm_hw_rule_noresample(runtime, 48000);
1213                 if (err < 0)
1214                         return err;
1215         }
1216
1217         runtime->private_data = viadev;
1218         viadev->substream = substream;
1219
1220         return 0;
1221 }
1222
1223
1224 /*
1225  * open callback for playback on via686
1226  */
1227 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1228 {
1229         struct via82xx *chip = snd_pcm_substream_chip(substream);
1230         struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1231         int err;
1232
1233         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1234                 return err;
1235         return 0;
1236 }
1237
1238 /*
1239  * open callback for playback on via823x DXS
1240  */
1241 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1242 {
1243         struct via82xx *chip = snd_pcm_substream_chip(substream);
1244         struct viadev *viadev;
1245         unsigned int stream;
1246         int err;
1247
1248         viadev = &chip->devs[chip->playback_devno + substream->number];
1249         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1250                 return err;
1251         stream = viadev->reg_offset / 0x10;
1252         if (chip->dxs_controls[stream]) {
1253                 chip->playback_volume[stream][0] =
1254                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1255                 chip->playback_volume[stream][1] =
1256                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1257                 chip->dxs_controls[stream]->vd[0].access &=
1258                         ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1259                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1260                                SNDRV_CTL_EVENT_MASK_INFO,
1261                                &chip->dxs_controls[stream]->id);
1262         }
1263         return 0;
1264 }
1265
1266 /*
1267  * open callback for playback on via823x multi-channel
1268  */
1269 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1270 {
1271         struct via82xx *chip = snd_pcm_substream_chip(substream);
1272         struct viadev *viadev = &chip->devs[chip->multi_devno];
1273         int err;
1274         /* channels constraint for VIA8233A
1275          * 3 and 5 channels are not supported
1276          */
1277         static const unsigned int channels[] = {
1278                 1, 2, 4, 6
1279         };
1280         static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1281                 .count = ARRAY_SIZE(channels),
1282                 .list = channels,
1283                 .mask = 0,
1284         };
1285
1286         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1287                 return err;
1288         substream->runtime->hw.channels_max = 6;
1289         if (chip->revision == VIA_REV_8233A)
1290                 snd_pcm_hw_constraint_list(substream->runtime, 0,
1291                                            SNDRV_PCM_HW_PARAM_CHANNELS,
1292                                            &hw_constraints_channels);
1293         return 0;
1294 }
1295
1296 /*
1297  * open callback for capture on via686 and via823x
1298  */
1299 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1300 {
1301         struct via82xx *chip = snd_pcm_substream_chip(substream);
1302         struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1303
1304         return snd_via82xx_pcm_open(chip, viadev, substream);
1305 }
1306
1307 /*
1308  * close callback
1309  */
1310 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1311 {
1312         struct via82xx *chip = snd_pcm_substream_chip(substream);
1313         struct viadev *viadev = substream->runtime->private_data;
1314         struct via_rate_lock *ratep;
1315
1316         /* release the rate lock */
1317         ratep = &chip->rates[viadev->direction];
1318         spin_lock_irq(&ratep->lock);
1319         ratep->used--;
1320         if (! ratep->used)
1321                 ratep->rate = 0;
1322         spin_unlock_irq(&ratep->lock);
1323         if (! ratep->rate) {
1324                 if (! viadev->direction) {
1325                         snd_ac97_update_power(chip->ac97,
1326                                               AC97_PCM_FRONT_DAC_RATE, 0);
1327                         snd_ac97_update_power(chip->ac97,
1328                                               AC97_PCM_SURR_DAC_RATE, 0);
1329                         snd_ac97_update_power(chip->ac97,
1330                                               AC97_PCM_LFE_DAC_RATE, 0);
1331                 } else
1332                         snd_ac97_update_power(chip->ac97,
1333                                               AC97_PCM_LR_ADC_RATE, 0);
1334         }
1335         viadev->substream = NULL;
1336         return 0;
1337 }
1338
1339 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1340 {
1341         struct via82xx *chip = snd_pcm_substream_chip(substream);
1342         struct viadev *viadev = substream->runtime->private_data;
1343         unsigned int stream;
1344
1345         stream = viadev->reg_offset / 0x10;
1346         if (chip->dxs_controls[stream]) {
1347                 chip->dxs_controls[stream]->vd[0].access |=
1348                         SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1349                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1350                                &chip->dxs_controls[stream]->id);
1351         }
1352         return snd_via82xx_pcm_close(substream);
1353 }
1354
1355
1356 /* via686 playback callbacks */
1357 static const struct snd_pcm_ops snd_via686_playback_ops = {
1358         .open =         snd_via686_playback_open,
1359         .close =        snd_via82xx_pcm_close,
1360         .ioctl =        snd_pcm_lib_ioctl,
1361         .hw_params =    snd_via82xx_hw_params,
1362         .hw_free =      snd_via82xx_hw_free,
1363         .prepare =      snd_via686_playback_prepare,
1364         .trigger =      snd_via82xx_pcm_trigger,
1365         .pointer =      snd_via686_pcm_pointer,
1366         .page =         snd_pcm_sgbuf_ops_page,
1367 };
1368
1369 /* via686 capture callbacks */
1370 static const struct snd_pcm_ops snd_via686_capture_ops = {
1371         .open =         snd_via82xx_capture_open,
1372         .close =        snd_via82xx_pcm_close,
1373         .ioctl =        snd_pcm_lib_ioctl,
1374         .hw_params =    snd_via82xx_hw_params,
1375         .hw_free =      snd_via82xx_hw_free,
1376         .prepare =      snd_via686_capture_prepare,
1377         .trigger =      snd_via82xx_pcm_trigger,
1378         .pointer =      snd_via686_pcm_pointer,
1379         .page =         snd_pcm_sgbuf_ops_page,
1380 };
1381
1382 /* via823x DSX playback callbacks */
1383 static const struct snd_pcm_ops snd_via8233_playback_ops = {
1384         .open =         snd_via8233_playback_open,
1385         .close =        snd_via8233_playback_close,
1386         .ioctl =        snd_pcm_lib_ioctl,
1387         .hw_params =    snd_via82xx_hw_params,
1388         .hw_free =      snd_via82xx_hw_free,
1389         .prepare =      snd_via8233_playback_prepare,
1390         .trigger =      snd_via82xx_pcm_trigger,
1391         .pointer =      snd_via8233_pcm_pointer,
1392         .page =         snd_pcm_sgbuf_ops_page,
1393 };
1394
1395 /* via823x multi-channel playback callbacks */
1396 static const struct snd_pcm_ops snd_via8233_multi_ops = {
1397         .open =         snd_via8233_multi_open,
1398         .close =        snd_via82xx_pcm_close,
1399         .ioctl =        snd_pcm_lib_ioctl,
1400         .hw_params =    snd_via82xx_hw_params,
1401         .hw_free =      snd_via82xx_hw_free,
1402         .prepare =      snd_via8233_multi_prepare,
1403         .trigger =      snd_via82xx_pcm_trigger,
1404         .pointer =      snd_via8233_pcm_pointer,
1405         .page =         snd_pcm_sgbuf_ops_page,
1406 };
1407
1408 /* via823x capture callbacks */
1409 static const struct snd_pcm_ops snd_via8233_capture_ops = {
1410         .open =         snd_via82xx_capture_open,
1411         .close =        snd_via82xx_pcm_close,
1412         .ioctl =        snd_pcm_lib_ioctl,
1413         .hw_params =    snd_via82xx_hw_params,
1414         .hw_free =      snd_via82xx_hw_free,
1415         .prepare =      snd_via8233_capture_prepare,
1416         .trigger =      snd_via82xx_pcm_trigger,
1417         .pointer =      snd_via8233_pcm_pointer,
1418         .page =         snd_pcm_sgbuf_ops_page,
1419 };
1420
1421
1422 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1423                         int shadow_pos, int direction)
1424 {
1425         chip->devs[idx].reg_offset = reg_offset;
1426         chip->devs[idx].shadow_shift = shadow_pos * 4;
1427         chip->devs[idx].direction = direction;
1428         chip->devs[idx].port = chip->port + reg_offset;
1429 }
1430
1431 /*
1432  * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1433  */
1434 static int snd_via8233_pcm_new(struct via82xx *chip)
1435 {
1436         struct snd_pcm *pcm;
1437         struct snd_pcm_chmap *chmap;
1438         int i, err;
1439
1440         chip->playback_devno = 0;       /* x 4 */
1441         chip->multi_devno = 4;          /* x 1 */
1442         chip->capture_devno = 5;        /* x 2 */
1443         chip->num_devs = 7;
1444         chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1445
1446         /* PCM #0:  4 DSX playbacks and 1 capture */
1447         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1448         if (err < 0)
1449                 return err;
1450         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1451         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1452         pcm->private_data = chip;
1453         strcpy(pcm->name, chip->card->shortname);
1454         chip->pcms[0] = pcm;
1455         /* set up playbacks */
1456         for (i = 0; i < 4; i++)
1457                 init_viadev(chip, i, 0x10 * i, i, 0);
1458         /* capture */
1459         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1460
1461         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1462                                               snd_dma_pci_data(chip->pci),
1463                                               64*1024, VIA_MAX_BUFSIZE);
1464
1465         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1466                                      snd_pcm_std_chmaps, 2, 0,
1467                                      &chmap);
1468         if (err < 0)
1469                 return err;
1470
1471         /* PCM #1:  multi-channel playback and 2nd capture */
1472         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1473         if (err < 0)
1474                 return err;
1475         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1476         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1477         pcm->private_data = chip;
1478         strcpy(pcm->name, chip->card->shortname);
1479         chip->pcms[1] = pcm;
1480         /* set up playback */
1481         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1482         /* set up capture */
1483         init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1484
1485         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1486                                               snd_dma_pci_data(chip->pci),
1487                                               64*1024, VIA_MAX_BUFSIZE);
1488
1489         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1490                                      snd_pcm_alt_chmaps, 6, 0,
1491                                      &chmap);
1492         if (err < 0)
1493                 return err;
1494         chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1495
1496         return 0;
1497 }
1498
1499 /*
1500  * create pcm instances for VIA8233A
1501  */
1502 static int snd_via8233a_pcm_new(struct via82xx *chip)
1503 {
1504         struct snd_pcm *pcm;
1505         struct snd_pcm_chmap *chmap;
1506         int err;
1507
1508         chip->multi_devno = 0;
1509         chip->playback_devno = 1;
1510         chip->capture_devno = 2;
1511         chip->num_devs = 3;
1512         chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1513
1514         /* PCM #0:  multi-channel playback and capture */
1515         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1516         if (err < 0)
1517                 return err;
1518         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1519         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1520         pcm->private_data = chip;
1521         strcpy(pcm->name, chip->card->shortname);
1522         chip->pcms[0] = pcm;
1523         /* set up playback */
1524         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1525         /* capture */
1526         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1527
1528         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1529                                               snd_dma_pci_data(chip->pci),
1530                                               64*1024, VIA_MAX_BUFSIZE);
1531
1532         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1533                                      snd_pcm_alt_chmaps, 6, 0,
1534                                      &chmap);
1535         if (err < 0)
1536                 return err;
1537         chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1538
1539         /* SPDIF supported? */
1540         if (! ac97_can_spdif(chip->ac97))
1541                 return 0;
1542
1543         /* PCM #1:  DXS3 playback (for spdif) */
1544         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1545         if (err < 0)
1546                 return err;
1547         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1548         pcm->private_data = chip;
1549         strcpy(pcm->name, chip->card->shortname);
1550         chip->pcms[1] = pcm;
1551         /* set up playback */
1552         init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1553
1554         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1555                                               snd_dma_pci_data(chip->pci),
1556                                               64*1024, VIA_MAX_BUFSIZE);
1557         return 0;
1558 }
1559
1560 /*
1561  * create a pcm instance for via686a/b
1562  */
1563 static int snd_via686_pcm_new(struct via82xx *chip)
1564 {
1565         struct snd_pcm *pcm;
1566         int err;
1567
1568         chip->playback_devno = 0;
1569         chip->capture_devno = 1;
1570         chip->num_devs = 2;
1571         chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1572
1573         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1574         if (err < 0)
1575                 return err;
1576         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1577         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1578         pcm->private_data = chip;
1579         strcpy(pcm->name, chip->card->shortname);
1580         chip->pcms[0] = pcm;
1581         init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1582         init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1583
1584         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1585                                               snd_dma_pci_data(chip->pci),
1586                                               64*1024, VIA_MAX_BUFSIZE);
1587         return 0;
1588 }
1589
1590
1591 /*
1592  *  Mixer part
1593  */
1594
1595 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1596                                            struct snd_ctl_elem_info *uinfo)
1597 {
1598         /* formerly they were "Line" and "Mic", but it looks like that they
1599          * have nothing to do with the actual physical connections...
1600          */
1601         static const char * const texts[2] = {
1602                 "Input1", "Input2"
1603         };
1604         return snd_ctl_enum_info(uinfo, 1, 2, texts);
1605 }
1606
1607 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1608                                           struct snd_ctl_elem_value *ucontrol)
1609 {
1610         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1611         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1612         ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1613         return 0;
1614 }
1615
1616 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1617                                           struct snd_ctl_elem_value *ucontrol)
1618 {
1619         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1620         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1621         u8 val, oval;
1622
1623         spin_lock_irq(&chip->reg_lock);
1624         oval = inb(port);
1625         val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1626         if (ucontrol->value.enumerated.item[0])
1627                 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1628         if (val != oval)
1629                 outb(val, port);
1630         spin_unlock_irq(&chip->reg_lock);
1631         return val != oval;
1632 }
1633
1634 static struct snd_kcontrol_new snd_via8233_capture_source = {
1635         .name = "Input Source Select",
1636         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1637         .info = snd_via8233_capture_source_info,
1638         .get = snd_via8233_capture_source_get,
1639         .put = snd_via8233_capture_source_put,
1640 };
1641
1642 #define snd_via8233_dxs3_spdif_info     snd_ctl_boolean_mono_info
1643
1644 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1645                                       struct snd_ctl_elem_value *ucontrol)
1646 {
1647         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1648         u8 val;
1649
1650         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1651         ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1652         return 0;
1653 }
1654
1655 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1656                                       struct snd_ctl_elem_value *ucontrol)
1657 {
1658         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1659         u8 val, oval;
1660
1661         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1662         val = oval & ~VIA8233_SPDIF_DX3;
1663         if (ucontrol->value.integer.value[0])
1664                 val |= VIA8233_SPDIF_DX3;
1665         /* save the spdif flag for rate filtering */
1666         chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1667         if (val != oval) {
1668                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1669                 return 1;
1670         }
1671         return 0;
1672 }
1673
1674 static const struct snd_kcontrol_new snd_via8233_dxs3_spdif_control = {
1675         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1676         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1677         .info = snd_via8233_dxs3_spdif_info,
1678         .get = snd_via8233_dxs3_spdif_get,
1679         .put = snd_via8233_dxs3_spdif_put,
1680 };
1681
1682 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1683                                        struct snd_ctl_elem_info *uinfo)
1684 {
1685         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1686         uinfo->count = 2;
1687         uinfo->value.integer.min = 0;
1688         uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1689         return 0;
1690 }
1691
1692 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1693                                       struct snd_ctl_elem_value *ucontrol)
1694 {
1695         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1696         unsigned int idx = kcontrol->id.subdevice;
1697
1698         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1699         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1700         return 0;
1701 }
1702
1703 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1704                                          struct snd_ctl_elem_value *ucontrol)
1705 {
1706         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1707         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1708         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1709         return 0;
1710 }
1711
1712 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1713                                       struct snd_ctl_elem_value *ucontrol)
1714 {
1715         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1716         unsigned int idx = kcontrol->id.subdevice;
1717         unsigned long port = chip->port + 0x10 * idx;
1718         unsigned char val;
1719         int i, change = 0;
1720
1721         for (i = 0; i < 2; i++) {
1722                 val = ucontrol->value.integer.value[i];
1723                 if (val > VIA_DXS_MAX_VOLUME)
1724                         val = VIA_DXS_MAX_VOLUME;
1725                 val = VIA_DXS_MAX_VOLUME - val;
1726                 change |= val != chip->playback_volume[idx][i];
1727                 if (change) {
1728                         chip->playback_volume[idx][i] = val;
1729                         outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1730                 }
1731         }
1732         return change;
1733 }
1734
1735 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1736                                          struct snd_ctl_elem_value *ucontrol)
1737 {
1738         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1739         unsigned int idx;
1740         unsigned char val;
1741         int i, change = 0;
1742
1743         for (i = 0; i < 2; i++) {
1744                 val = ucontrol->value.integer.value[i];
1745                 if (val > VIA_DXS_MAX_VOLUME)
1746                         val = VIA_DXS_MAX_VOLUME;
1747                 val = VIA_DXS_MAX_VOLUME - val;
1748                 if (val != chip->playback_volume_c[i]) {
1749                         change = 1;
1750                         chip->playback_volume_c[i] = val;
1751                         for (idx = 0; idx < 4; idx++) {
1752                                 unsigned long port = chip->port + 0x10 * idx;
1753                                 chip->playback_volume[idx][i] = val;
1754                                 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1755                         }
1756                 }
1757         }
1758         return change;
1759 }
1760
1761 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1762
1763 static const struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control = {
1764         .name = "PCM Playback Volume",
1765         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1766         .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1767                    SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1768         .info = snd_via8233_dxs_volume_info,
1769         .get = snd_via8233_pcmdxs_volume_get,
1770         .put = snd_via8233_pcmdxs_volume_put,
1771         .tlv = { .p = db_scale_dxs }
1772 };
1773
1774 static const struct snd_kcontrol_new snd_via8233_dxs_volume_control = {
1775         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1776         .device = 0,
1777         /* .subdevice set later */
1778         .name = "PCM Playback Volume",
1779         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1780                   SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1781                   SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1782         .info = snd_via8233_dxs_volume_info,
1783         .get = snd_via8233_dxs_volume_get,
1784         .put = snd_via8233_dxs_volume_put,
1785         .tlv = { .p = db_scale_dxs }
1786 };
1787
1788 /*
1789  */
1790
1791 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1792 {
1793         struct via82xx *chip = bus->private_data;
1794         chip->ac97_bus = NULL;
1795 }
1796
1797 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1798 {
1799         struct via82xx *chip = ac97->private_data;
1800         chip->ac97 = NULL;
1801 }
1802
1803 static const struct ac97_quirk ac97_quirks[] = {
1804         {
1805                 .subvendor = 0x1106,
1806                 .subdevice = 0x4161,
1807                 .codec_id = 0x56494161, /* VT1612A */
1808                 .name = "Soltek SL-75DRV5",
1809                 .type = AC97_TUNE_NONE
1810         },
1811         {       /* FIXME: which codec? */
1812                 .subvendor = 0x1106,
1813                 .subdevice = 0x4161,
1814                 .name = "ASRock K7VT2",
1815                 .type = AC97_TUNE_HP_ONLY
1816         },
1817         {
1818                 .subvendor = 0x110a,
1819                 .subdevice = 0x0079,
1820                 .name = "Fujitsu Siemens D1289",
1821                 .type = AC97_TUNE_HP_ONLY
1822         },
1823         {
1824                 .subvendor = 0x1019,
1825                 .subdevice = 0x0a81,
1826                 .name = "ECS K7VTA3",
1827                 .type = AC97_TUNE_HP_ONLY
1828         },
1829         {
1830                 .subvendor = 0x1019,
1831                 .subdevice = 0x0a85,
1832                 .name = "ECS L7VMM2",
1833                 .type = AC97_TUNE_HP_ONLY
1834         },
1835         {
1836                 .subvendor = 0x1019,
1837                 .subdevice = 0x1841,
1838                 .name = "ECS K7VTA3",
1839                 .type = AC97_TUNE_HP_ONLY
1840         },
1841         {
1842                 .subvendor = 0x1849,
1843                 .subdevice = 0x3059,
1844                 .name = "ASRock K7VM2",
1845                 .type = AC97_TUNE_HP_ONLY       /* VT1616 */
1846         },
1847         {
1848                 .subvendor = 0x14cd,
1849                 .subdevice = 0x7002,
1850                 .name = "Unknown",
1851                 .type = AC97_TUNE_ALC_JACK
1852         },
1853         {
1854                 .subvendor = 0x1071,
1855                 .subdevice = 0x8590,
1856                 .name = "Mitac Mobo",
1857                 .type = AC97_TUNE_ALC_JACK
1858         },
1859         {
1860                 .subvendor = 0x161f,
1861                 .subdevice = 0x202b,
1862                 .name = "Arima Notebook",
1863                 .type = AC97_TUNE_HP_ONLY,
1864         },
1865         {
1866                 .subvendor = 0x161f,
1867                 .subdevice = 0x2032,
1868                 .name = "Targa Traveller 811",
1869                 .type = AC97_TUNE_HP_ONLY,
1870         },
1871         {
1872                 .subvendor = 0x161f,
1873                 .subdevice = 0x2032,
1874                 .name = "m680x",
1875                 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1876         },
1877         {
1878                 .subvendor = 0x1297,
1879                 .subdevice = 0xa232,
1880                 .name = "Shuttle AK32VN",
1881                 .type = AC97_TUNE_HP_ONLY
1882         },
1883         { } /* terminator */
1884 };
1885
1886 static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1887 {
1888         struct snd_ac97_template ac97;
1889         int err;
1890         static struct snd_ac97_bus_ops ops = {
1891                 .write = snd_via82xx_codec_write,
1892                 .read = snd_via82xx_codec_read,
1893                 .wait = snd_via82xx_codec_wait,
1894         };
1895
1896         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1897                 return err;
1898         chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1899         chip->ac97_bus->clock = chip->ac97_clock;
1900
1901         memset(&ac97, 0, sizeof(ac97));
1902         ac97.private_data = chip;
1903         ac97.private_free = snd_via82xx_mixer_free_ac97;
1904         ac97.pci = chip->pci;
1905         ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1906         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1907                 return err;
1908
1909         snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1910
1911         if (chip->chip_type != TYPE_VIA686) {
1912                 /* use slot 10/11 */
1913                 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1914         }
1915
1916         return 0;
1917 }
1918
1919 #ifdef SUPPORT_JOYSTICK
1920 #define JOYSTICK_ADDR   0x200
1921 static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1922 {
1923         struct gameport *gp;
1924         struct resource *r;
1925
1926         if (!joystick)
1927                 return -ENODEV;
1928
1929         r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1930         if (!r) {
1931                 dev_warn(chip->card->dev, "cannot reserve joystick port %#x\n",
1932                        JOYSTICK_ADDR);
1933                 return -EBUSY;
1934         }
1935
1936         chip->gameport = gp = gameport_allocate_port();
1937         if (!gp) {
1938                 dev_err(chip->card->dev,
1939                         "cannot allocate memory for gameport\n");
1940                 release_and_free_resource(r);
1941                 return -ENOMEM;
1942         }
1943
1944         gameport_set_name(gp, "VIA686 Gameport");
1945         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1946         gameport_set_dev_parent(gp, &chip->pci->dev);
1947         gp->io = JOYSTICK_ADDR;
1948         gameport_set_port_data(gp, r);
1949
1950         /* Enable legacy joystick port */
1951         *legacy |= VIA_FUNC_ENABLE_GAME;
1952         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1953
1954         gameport_register_port(chip->gameport);
1955
1956         return 0;
1957 }
1958
1959 static void snd_via686_free_gameport(struct via82xx *chip)
1960 {
1961         if (chip->gameport) {
1962                 struct resource *r = gameport_get_port_data(chip->gameport);
1963
1964                 gameport_unregister_port(chip->gameport);
1965                 chip->gameport = NULL;
1966                 release_and_free_resource(r);
1967         }
1968 }
1969 #else
1970 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1971 {
1972         return -ENOSYS;
1973 }
1974 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1975 #endif
1976
1977
1978 /*
1979  *
1980  */
1981
1982 static int snd_via8233_init_misc(struct via82xx *chip)
1983 {
1984         int i, err, caps;
1985         unsigned char val;
1986
1987         caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
1988         for (i = 0; i < caps; i++) {
1989                 snd_via8233_capture_source.index = i;
1990                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
1991                 if (err < 0)
1992                         return err;
1993         }
1994         if (ac97_can_spdif(chip->ac97)) {
1995                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
1996                 if (err < 0)
1997                         return err;
1998         }
1999         if (chip->chip_type != TYPE_VIA8233A) {
2000                 /* when no h/w PCM volume control is found, use DXS volume control
2001                  * as the PCM vol control
2002                  */
2003                 struct snd_ctl_elem_id sid;
2004                 memset(&sid, 0, sizeof(sid));
2005                 strcpy(sid.name, "PCM Playback Volume");
2006                 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2007                 if (! snd_ctl_find_id(chip->card, &sid)) {
2008                         dev_info(chip->card->dev,
2009                                  "Using DXS as PCM Playback\n");
2010                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
2011                         if (err < 0)
2012                                 return err;
2013                 }
2014                 else /* Using DXS when PCM emulation is enabled is really weird */
2015                 {
2016                         for (i = 0; i < 4; ++i) {
2017                                 struct snd_kcontrol *kctl;
2018
2019                                 kctl = snd_ctl_new1(
2020                                         &snd_via8233_dxs_volume_control, chip);
2021                                 if (!kctl)
2022                                         return -ENOMEM;
2023                                 kctl->id.subdevice = i;
2024                                 err = snd_ctl_add(chip->card, kctl);
2025                                 if (err < 0)
2026                                         return err;
2027                                 chip->dxs_controls[i] = kctl;
2028                         }
2029                 }
2030         }
2031         /* select spdif data slot 10/11 */
2032         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2033         val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2034         val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2035         pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2036
2037         return 0;
2038 }
2039
2040 static int snd_via686_init_misc(struct via82xx *chip)
2041 {
2042         unsigned char legacy, legacy_cfg;
2043         int rev_h = 0;
2044
2045         legacy = chip->old_legacy;
2046         legacy_cfg = chip->old_legacy_cfg;
2047         legacy |= VIA_FUNC_MIDI_IRQMASK;        /* FIXME: correct? (disable MIDI) */
2048         legacy &= ~VIA_FUNC_ENABLE_GAME;        /* disable joystick */
2049         if (chip->revision >= VIA_REV_686_H) {
2050                 rev_h = 1;
2051                 if (mpu_port >= 0x200) {        /* force MIDI */
2052                         mpu_port &= 0xfffc;
2053                         pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2054 #ifdef CONFIG_PM_SLEEP
2055                         chip->mpu_port_saved = mpu_port;
2056 #endif
2057                 } else {
2058                         mpu_port = pci_resource_start(chip->pci, 2);
2059                 }
2060         } else {
2061                 switch (mpu_port) {     /* force MIDI */
2062                 case 0x300:
2063                 case 0x310:
2064                 case 0x320:
2065                 case 0x330:
2066                         legacy_cfg &= ~(3 << 2);
2067                         legacy_cfg |= (mpu_port & 0x0030) >> 2;
2068                         break;
2069                 default:                        /* no, use BIOS settings */
2070                         if (legacy & VIA_FUNC_ENABLE_MIDI)
2071                                 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2072                         break;
2073                 }
2074         }
2075         if (mpu_port >= 0x200 &&
2076             (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2077             != NULL) {
2078                 if (rev_h)
2079                         legacy |= VIA_FUNC_MIDI_PNP;    /* enable PCI I/O 2 */
2080                 legacy |= VIA_FUNC_ENABLE_MIDI;
2081         } else {
2082                 if (rev_h)
2083                         legacy &= ~VIA_FUNC_MIDI_PNP;   /* disable PCI I/O 2 */
2084                 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2085                 mpu_port = 0;
2086         }
2087
2088         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2089         pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2090         if (chip->mpu_res) {
2091                 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2092                                         mpu_port, MPU401_INFO_INTEGRATED |
2093                                         MPU401_INFO_IRQ_HOOK, -1,
2094                                         &chip->rmidi) < 0) {
2095                         dev_warn(chip->card->dev,
2096                                  "unable to initialize MPU-401 at 0x%lx, skipping\n",
2097                                  mpu_port);
2098                         legacy &= ~VIA_FUNC_ENABLE_MIDI;
2099                 } else {
2100                         legacy &= ~VIA_FUNC_MIDI_IRQMASK;       /* enable MIDI interrupt */
2101                 }
2102                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2103         }
2104
2105         snd_via686_create_gameport(chip, &legacy);
2106
2107 #ifdef CONFIG_PM_SLEEP
2108         chip->legacy_saved = legacy;
2109         chip->legacy_cfg_saved = legacy_cfg;
2110 #endif
2111
2112         return 0;
2113 }
2114
2115
2116 /*
2117  * proc interface
2118  */
2119 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2120                                   struct snd_info_buffer *buffer)
2121 {
2122         struct via82xx *chip = entry->private_data;
2123         int i;
2124
2125         snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2126         for (i = 0; i < 0xa0; i += 4) {
2127                 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2128         }
2129 }
2130
2131 static void snd_via82xx_proc_init(struct via82xx *chip)
2132 {
2133         snd_card_ro_proc_new(chip->card, "via82xx", chip,
2134                              snd_via82xx_proc_read);
2135 }
2136
2137 /*
2138  *
2139  */
2140
2141 static int snd_via82xx_chip_init(struct via82xx *chip)
2142 {
2143         unsigned int val;
2144         unsigned long end_time;
2145         unsigned char pval;
2146
2147 #if 0 /* broken on K7M? */
2148         if (chip->chip_type == TYPE_VIA686)
2149                 /* disable all legacy ports */
2150                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2151 #endif
2152         pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2153         if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2154                 /* deassert ACLink reset, force SYNC */
2155                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2156                                       VIA_ACLINK_CTRL_ENABLE |
2157                                       VIA_ACLINK_CTRL_RESET |
2158                                       VIA_ACLINK_CTRL_SYNC);
2159                 udelay(100);
2160 #if 1 /* FIXME: should we do full reset here for all chip models? */
2161                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2162                 udelay(100);
2163 #else
2164                 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2165                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2166                                       VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2167                 udelay(2);
2168 #endif
2169                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2170                 /* note - FM data out has trouble with non VRA codecs !! */
2171                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2172                 udelay(100);
2173         }
2174
2175         /* Make sure VRA is enabled, in case we didn't do a
2176          * complete codec reset, above */
2177         pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2178         if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2179                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2180                 /* note - FM data out has trouble with non VRA codecs !! */
2181                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2182                 udelay(100);
2183         }
2184
2185         /* wait until codec ready */
2186         end_time = jiffies + msecs_to_jiffies(750);
2187         do {
2188                 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2189                 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2190                         break;
2191                 schedule_timeout_uninterruptible(1);
2192         } while (time_before(jiffies, end_time));
2193
2194         if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2195                 dev_err(chip->card->dev,
2196                         "AC'97 codec is not ready [0x%x]\n", val);
2197
2198 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2199         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2200                                  VIA_REG_AC97_SECONDARY_VALID |
2201                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2202         end_time = jiffies + msecs_to_jiffies(750);
2203         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2204                                  VIA_REG_AC97_SECONDARY_VALID |
2205                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2206         do {
2207                 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2208                         chip->ac97_secondary = 1;
2209                         goto __ac97_ok2;
2210                 }
2211                 schedule_timeout_uninterruptible(1);
2212         } while (time_before(jiffies, end_time));
2213         /* This is ok, the most of motherboards have only one codec */
2214
2215       __ac97_ok2:
2216 #endif
2217
2218         if (chip->chip_type == TYPE_VIA686) {
2219                 /* route FM trap to IRQ, disable FM trap */
2220                 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2221                 /* disable all GPI interrupts */
2222                 outl(0, VIAREG(chip, GPI_INTR));
2223         }
2224
2225         if (chip->chip_type != TYPE_VIA686) {
2226                 /* Workaround for Award BIOS bug:
2227                  * DXS channels don't work properly with VRA if MC97 is disabled.
2228                  */
2229                 struct pci_dev *pci;
2230                 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2231                 if (pci) {
2232                         unsigned char data;
2233                         pci_read_config_byte(pci, 0x44, &data);
2234                         pci_write_config_byte(pci, 0x44, data | 0x40);
2235                         pci_dev_put(pci);
2236                 }
2237         }
2238
2239         if (chip->chip_type != TYPE_VIA8233A) {
2240                 int i, idx;
2241                 for (idx = 0; idx < 4; idx++) {
2242                         unsigned long port = chip->port + 0x10 * idx;
2243                         for (i = 0; i < 2; i++) {
2244                                 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2245                                 outb(chip->playback_volume_c[i],
2246                                      port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2247                         }
2248                 }
2249         }
2250
2251         return 0;
2252 }
2253
2254 #ifdef CONFIG_PM_SLEEP
2255 /*
2256  * power management
2257  */
2258 static int snd_via82xx_suspend(struct device *dev)
2259 {
2260         struct snd_card *card = dev_get_drvdata(dev);
2261         struct via82xx *chip = card->private_data;
2262         int i;
2263
2264         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2265         for (i = 0; i < chip->num_devs; i++)
2266                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2267         synchronize_irq(chip->irq);
2268         snd_ac97_suspend(chip->ac97);
2269
2270         /* save misc values */
2271         if (chip->chip_type != TYPE_VIA686) {
2272                 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2273                 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2274                 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2275         }
2276
2277         return 0;
2278 }
2279
2280 static int snd_via82xx_resume(struct device *dev)
2281 {
2282         struct snd_card *card = dev_get_drvdata(dev);
2283         struct via82xx *chip = card->private_data;
2284         int i;
2285
2286         snd_via82xx_chip_init(chip);
2287
2288         if (chip->chip_type == TYPE_VIA686) {
2289                 if (chip->mpu_port_saved)
2290                         pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2291                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2292                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2293         } else {
2294                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2295                 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2296                 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2297         }
2298
2299         snd_ac97_resume(chip->ac97);
2300
2301         for (i = 0; i < chip->num_devs; i++)
2302                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2303
2304         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2305         return 0;
2306 }
2307
2308 static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
2309 #define SND_VIA82XX_PM_OPS      &snd_via82xx_pm
2310 #else
2311 #define SND_VIA82XX_PM_OPS      NULL
2312 #endif /* CONFIG_PM_SLEEP */
2313
2314 static int snd_via82xx_free(struct via82xx *chip)
2315 {
2316         unsigned int i;
2317
2318         if (chip->irq < 0)
2319                 goto __end_hw;
2320         /* disable interrupts */
2321         for (i = 0; i < chip->num_devs; i++)
2322                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2323
2324         if (chip->irq >= 0)
2325                 free_irq(chip->irq, chip);
2326  __end_hw:
2327         release_and_free_resource(chip->mpu_res);
2328         pci_release_regions(chip->pci);
2329
2330         if (chip->chip_type == TYPE_VIA686) {
2331                 snd_via686_free_gameport(chip);
2332                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2333                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2334         }
2335         pci_disable_device(chip->pci);
2336         kfree(chip);
2337         return 0;
2338 }
2339
2340 static int snd_via82xx_dev_free(struct snd_device *device)
2341 {
2342         struct via82xx *chip = device->device_data;
2343         return snd_via82xx_free(chip);
2344 }
2345
2346 static int snd_via82xx_create(struct snd_card *card,
2347                               struct pci_dev *pci,
2348                               int chip_type,
2349                               int revision,
2350                               unsigned int ac97_clock,
2351                               struct via82xx **r_via)
2352 {
2353         struct via82xx *chip;
2354         int err;
2355         static struct snd_device_ops ops = {
2356                 .dev_free =     snd_via82xx_dev_free,
2357         };
2358
2359         if ((err = pci_enable_device(pci)) < 0)
2360                 return err;
2361
2362         if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2363                 pci_disable_device(pci);
2364                 return -ENOMEM;
2365         }
2366
2367         chip->chip_type = chip_type;
2368         chip->revision = revision;
2369
2370         spin_lock_init(&chip->reg_lock);
2371         spin_lock_init(&chip->rates[0].lock);
2372         spin_lock_init(&chip->rates[1].lock);
2373         chip->card = card;
2374         chip->pci = pci;
2375         chip->irq = -1;
2376
2377         pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2378         pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2379         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2380                               chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2381
2382         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2383                 kfree(chip);
2384                 pci_disable_device(pci);
2385                 return err;
2386         }
2387         chip->port = pci_resource_start(pci, 0);
2388         if (request_irq(pci->irq,
2389                         chip_type == TYPE_VIA8233 ?
2390                         snd_via8233_interrupt : snd_via686_interrupt,
2391                         IRQF_SHARED,
2392                         KBUILD_MODNAME, chip)) {
2393                 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
2394                 snd_via82xx_free(chip);
2395                 return -EBUSY;
2396         }
2397         chip->irq = pci->irq;
2398         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2399                 chip->ac97_clock = ac97_clock;
2400         synchronize_irq(chip->irq);
2401
2402         if ((err = snd_via82xx_chip_init(chip)) < 0) {
2403                 snd_via82xx_free(chip);
2404                 return err;
2405         }
2406
2407         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2408                 snd_via82xx_free(chip);
2409                 return err;
2410         }
2411
2412         /* The 8233 ac97 controller does not implement the master bit
2413          * in the pci command register. IMHO this is a violation of the PCI spec.
2414          * We call pci_set_master here because it does not hurt. */
2415         pci_set_master(pci);
2416
2417         *r_via = chip;
2418         return 0;
2419 }
2420
2421 struct via823x_info {
2422         int revision;
2423         char *name;
2424         int type;
2425 };
2426 static struct via823x_info via823x_cards[] = {
2427         { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2428         { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2429         { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2430         { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2431         { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2432         { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2433         { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2434 };
2435
2436 /*
2437  * auto detection of DXS channel supports.
2438  */
2439
2440 static struct snd_pci_quirk dxs_whitelist[] = {
2441         SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2442         SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2443         SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2444         SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2445         SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2446         SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2447         SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2448         SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2449         SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2450         SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2451         SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2452         SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2453         SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2454         SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2455         SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2456         SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2457         SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2458         SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2459         SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2460         SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2461         SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2462         SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2463         SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2464         SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2465         SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2466         SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2467         SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2468         SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2469         SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2470         SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2471         SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2472         SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2473         SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2474         SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2475         SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2476         SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2477         SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2478         SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2479         SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8",  VIA_DXS_NO_VRA),
2480         SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2481         { } /* terminator */
2482 };
2483
2484 static int check_dxs_list(struct pci_dev *pci, int revision)
2485 {
2486         const struct snd_pci_quirk *w;
2487
2488         w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2489         if (w) {
2490                 dev_dbg(&pci->dev, "DXS white list for %s found\n",
2491                             snd_pci_quirk_name(w));
2492                 return w->value;
2493         }
2494
2495         /* for newer revision, default to DXS_SRC */
2496         if (revision >= VIA_REV_8235)
2497                 return VIA_DXS_SRC;
2498
2499         /*
2500          * not detected, try 48k rate only to be sure.
2501          */
2502         dev_info(&pci->dev, "Assuming DXS channels with 48k fixed sample rate.\n");
2503         dev_info(&pci->dev, "         Please try dxs_support=5 option\n");
2504         dev_info(&pci->dev, "         and report if it works on your machine.\n");
2505         dev_info(&pci->dev, "         For more details, read ALSA-Configuration.txt.\n");
2506         return VIA_DXS_48K;
2507 };
2508
2509 static int snd_via82xx_probe(struct pci_dev *pci,
2510                              const struct pci_device_id *pci_id)
2511 {
2512         struct snd_card *card;
2513         struct via82xx *chip;
2514         int chip_type = 0, card_type;
2515         unsigned int i;
2516         int err;
2517
2518         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2519         if (err < 0)
2520                 return err;
2521
2522         card_type = pci_id->driver_data;
2523         switch (card_type) {
2524         case TYPE_CARD_VIA686:
2525                 strcpy(card->driver, "VIA686A");
2526                 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2527                 chip_type = TYPE_VIA686;
2528                 break;
2529         case TYPE_CARD_VIA8233:
2530                 chip_type = TYPE_VIA8233;
2531                 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2532                 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2533                         if (pci->revision == via823x_cards[i].revision) {
2534                                 chip_type = via823x_cards[i].type;
2535                                 strcpy(card->shortname, via823x_cards[i].name);
2536                                 break;
2537                         }
2538                 }
2539                 if (chip_type != TYPE_VIA8233A) {
2540                         if (dxs_support == VIA_DXS_AUTO)
2541                                 dxs_support = check_dxs_list(pci, pci->revision);
2542                         /* force to use VIA8233 or 8233A model according to
2543                          * dxs_support module option
2544                          */
2545                         if (dxs_support == VIA_DXS_DISABLE)
2546                                 chip_type = TYPE_VIA8233A;
2547                         else
2548                                 chip_type = TYPE_VIA8233;
2549                 }
2550                 if (chip_type == TYPE_VIA8233A)
2551                         strcpy(card->driver, "VIA8233A");
2552                 else if (pci->revision >= VIA_REV_8237)
2553                         strcpy(card->driver, "VIA8237"); /* no slog assignment */
2554                 else
2555                         strcpy(card->driver, "VIA8233");
2556                 break;
2557         default:
2558                 dev_err(card->dev, "invalid card type %d\n", card_type);
2559                 err = -EINVAL;
2560                 goto __error;
2561         }
2562
2563         if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2564                                       ac97_clock, &chip)) < 0)
2565                 goto __error;
2566         card->private_data = chip;
2567         if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2568                 goto __error;
2569
2570         if (chip_type == TYPE_VIA686) {
2571                 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2572                     (err = snd_via686_init_misc(chip)) < 0)
2573                         goto __error;
2574         } else {
2575                 if (chip_type == TYPE_VIA8233A) {
2576                         if ((err = snd_via8233a_pcm_new(chip)) < 0)
2577                                 goto __error;
2578                         // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2579                 } else {
2580                         if ((err = snd_via8233_pcm_new(chip)) < 0)
2581                                 goto __error;
2582                         if (dxs_support == VIA_DXS_48K)
2583                                 chip->dxs_fixed = 1;
2584                         else if (dxs_support == VIA_DXS_NO_VRA)
2585                                 chip->no_vra = 1;
2586                         else if (dxs_support == VIA_DXS_SRC) {
2587                                 chip->no_vra = 1;
2588                                 chip->dxs_src = 1;
2589                         }
2590                 }
2591                 if ((err = snd_via8233_init_misc(chip)) < 0)
2592                         goto __error;
2593         }
2594
2595         /* disable interrupts */
2596         for (i = 0; i < chip->num_devs; i++)
2597                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2598
2599         snprintf(card->longname, sizeof(card->longname),
2600                  "%s with %s at %#lx, irq %d", card->shortname,
2601                  snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2602
2603         snd_via82xx_proc_init(chip);
2604
2605         if ((err = snd_card_register(card)) < 0) {
2606                 snd_card_free(card);
2607                 return err;
2608         }
2609         pci_set_drvdata(pci, card);
2610         return 0;
2611
2612  __error:
2613         snd_card_free(card);
2614         return err;
2615 }
2616
2617 static void snd_via82xx_remove(struct pci_dev *pci)
2618 {
2619         snd_card_free(pci_get_drvdata(pci));
2620 }
2621
2622 static struct pci_driver via82xx_driver = {
2623         .name = KBUILD_MODNAME,
2624         .id_table = snd_via82xx_ids,
2625         .probe = snd_via82xx_probe,
2626         .remove = snd_via82xx_remove,
2627         .driver = {
2628                 .pm = SND_VIA82XX_PM_OPS,
2629         },
2630 };
2631
2632 module_pci_driver(via82xx_driver);