sound/pci/via82xx.c

   1 /*
   2  *   ALSA driver for VIA VT82xx (South Bridge)
   3  *
   4  *   VT82C686A/B/C, VT8233A/C, VT8235
   5  *
   6  *      Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
   7  *                         Tjeerd.Mulder <Tjeerd.Mulder@fujitsu-siemens.com>
   8  *                    2002 Takashi Iwai <tiwai@suse.de>
   9  *
  10  *   This program is free software; you can redistribute it and/or modify
  11  *   it under the terms of the GNU General Public License as published by
  12  *   the Free Software Foundation; either version 2 of the License, or
  13  *   (at your option) any later version.
  14  *
  15  *   This program is distributed in the hope that it will be useful,
  16  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *   GNU General Public License for more details.
  19  *
  20  *   You should have received a copy of the GNU General Public License
  21  *   along with this program; if not, write to the Free Software
  22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  23  *
  24  */
  25
  26 /*
  27  * Changes:
  28  *
  29  * Dec. 19, 2002        Takashi Iwai <tiwai@suse.de>
  30  *      - use the DSX channels for the first pcm playback.
  31  *        (on VIA8233, 8233C and 8235 only)
  32  *        this will allow you play simultaneously up to 4 streams.
  33  *        multi-channel playback is assigned to the second device
  34  *        on these chips.
  35  *      - support the secondary capture (on VIA8233/C,8235)
  36  *      - SPDIF support
  37  *        the DSX3 channel can be used for SPDIF output.
  38  *        on VIA8233A, this channel is assigned to the second pcm
  39  *        playback.
  40  *        the card config of alsa-lib will assign the correct
  41  *        device for applications.
  42  *      - clean up the code, separate low-level initialization
  43  *        routines for each chipset.
  44  *
  45  * Sep. 26, 2005        Karsten Wiese <annabellesgarden@yahoo.de>
  46  *      - Optimize position calculation for the 823x chips.
  47  */
  48
  49 #include <linux/io.h>
  50 #include <linux/delay.h>
  51 #include <linux/interrupt.h>
  52 #include <linux/init.h>
  53 #include <linux/pci.h>
  54 #include <linux/slab.h>
  55 #include <linux/gameport.h>
  56 #include <linux/module.h>
  57 #include <sound/core.h>
  58 #include <sound/pcm.h>
  59 #include <sound/pcm_params.h>
  60 #include <sound/info.h>
  61 #include <sound/tlv.h>
  62 #include <sound/ac97_codec.h>
  63 #include <sound/mpu401.h>
  64 #include <sound/initval.h>
  65
  66 #if 0
  67 #define POINTER_DEBUG
  68 #endif
  69
  70 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  71 MODULE_DESCRIPTION("VIA VT82xx audio");
  72 MODULE_LICENSE("GPL");
  73 MODULE_SUPPORTED_DEVICE("{{VIA,VT82C686A/B/C,pci},{VIA,VT8233A/C,8235}}");
  74
  75 #if IS_REACHABLE(CONFIG_GAMEPORT)
  76 #define SUPPORT_JOYSTICK 1
  77 #endif
  78
  79 static int index = SNDRV_DEFAULT_IDX1;  /* Index 0-MAX */
  80 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  81 static long mpu_port;
  82 #ifdef SUPPORT_JOYSTICK
  83 static bool joystick;
  84 #endif
  85 static int ac97_clock = 48000;
  86 static char *ac97_quirk;
  87 static int dxs_support;
  88 static int dxs_init_volume = 31;
  89 static int nodelay;
  90
  91 module_param(index, int, 0444);
  92 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
  93 module_param(id, charp, 0444);
  94 MODULE_PARM_DESC(id, "ID string for VIA 82xx bridge.");
  95 module_param_hw(mpu_port, long, ioport, 0444);
  96 MODULE_PARM_DESC(mpu_port, "MPU-401 port. (VT82C686x only)");
  97 #ifdef SUPPORT_JOYSTICK
  98 module_param(joystick, bool, 0444);
  99 MODULE_PARM_DESC(joystick, "Enable joystick. (VT82C686x only)");
 100 #endif
 101 module_param(ac97_clock, int, 0444);
 102 MODULE_PARM_DESC(ac97_clock, "AC'97 codec clock (default 48000Hz).");
 103 module_param(ac97_quirk, charp, 0444);
 104 MODULE_PARM_DESC(ac97_quirk, "AC'97 workaround for strange hardware.");
 105 module_param(dxs_support, int, 0444);
 106 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)");
 107 module_param(dxs_init_volume, int, 0644);
 108 MODULE_PARM_DESC(dxs_init_volume, "initial DXS volume (0-31)");
 109 module_param(nodelay, int, 0444);
 110 MODULE_PARM_DESC(nodelay, "Disable 500ms init delay");
 111
 112 /* just for backward compatibility */
 113 static bool enable;
 114 module_param(enable, bool, 0444);
 115
 116
 117 /* revision numbers for via686 */
 118 #define VIA_REV_686_A           0x10
 119 #define VIA_REV_686_B           0x11
 120 #define VIA_REV_686_C           0x12
 121 #define VIA_REV_686_D           0x13
 122 #define VIA_REV_686_E           0x14
 123 #define VIA_REV_686_H           0x20
 124
 125 /* revision numbers for via8233 */
 126 #define VIA_REV_PRE_8233        0x10    /* not in market */
 127 #define VIA_REV_8233C           0x20    /* 2 rec, 4 pb, 1 multi-pb */
 128 #define VIA_REV_8233            0x30    /* 2 rec, 4 pb, 1 multi-pb, spdif */
 129 #define VIA_REV_8233A           0x40    /* 1 rec, 1 multi-pb, spdf */
 130 #define VIA_REV_8235            0x50    /* 2 rec, 4 pb, 1 multi-pb, spdif */
 131 #define VIA_REV_8237            0x60
 132 #define VIA_REV_8251            0x70
 133
 134 /*
 135  *  Direct registers
 136  */
 137
 138 #define VIAREG(via, x) ((via)->port + VIA_REG_##x)
 139 #define VIADEV_REG(viadev, x) ((viadev)->port + VIA_REG_##x)
 140
 141 /* common offsets */
 142 #define VIA_REG_OFFSET_STATUS           0x00    /* byte - channel status */
 143 #define   VIA_REG_STAT_ACTIVE           0x80    /* RO */
 144 #define   VIA8233_SHADOW_STAT_ACTIVE    0x08    /* RO */
 145 #define   VIA_REG_STAT_PAUSED           0x40    /* RO */
 146 #define   VIA_REG_STAT_TRIGGER_QUEUED   0x08    /* RO */
 147 #define   VIA_REG_STAT_STOPPED          0x04    /* RWC */
 148 #define   VIA_REG_STAT_EOL              0x02    /* RWC */
 149 #define   VIA_REG_STAT_FLAG             0x01    /* RWC */
 150 #define VIA_REG_OFFSET_CONTROL          0x01    /* byte - channel control */
 151 #define   VIA_REG_CTRL_START            0x80    /* WO */
 152 #define   VIA_REG_CTRL_TERMINATE        0x40    /* WO */
 153 #define   VIA_REG_CTRL_AUTOSTART        0x20
 154 #define   VIA_REG_CTRL_PAUSE            0x08    /* RW */
 155 #define   VIA_REG_CTRL_INT_STOP         0x04
 156 #define   VIA_REG_CTRL_INT_EOL          0x02
 157 #define   VIA_REG_CTRL_INT_FLAG         0x01
 158 #define   VIA_REG_CTRL_RESET            0x01    /* RW - probably reset? undocumented */
 159 #define   VIA_REG_CTRL_INT (VIA_REG_CTRL_INT_FLAG | VIA_REG_CTRL_INT_EOL | VIA_REG_CTRL_AUTOSTART)
 160 #define VIA_REG_OFFSET_TYPE             0x02    /* byte - channel type (686 only) */
 161 #define   VIA_REG_TYPE_AUTOSTART        0x80    /* RW - autostart at EOL */
 162 #define   VIA_REG_TYPE_16BIT            0x20    /* RW */
 163 #define   VIA_REG_TYPE_STEREO           0x10    /* RW */
 164 #define   VIA_REG_TYPE_INT_LLINE        0x00
 165 #define   VIA_REG_TYPE_INT_LSAMPLE      0x04
 166 #define   VIA_REG_TYPE_INT_LESSONE      0x08
 167 #define   VIA_REG_TYPE_INT_MASK         0x0c
 168 #define   VIA_REG_TYPE_INT_EOL          0x02
 169 #define   VIA_REG_TYPE_INT_FLAG         0x01
 170 #define VIA_REG_OFFSET_TABLE_PTR        0x04    /* dword - channel table pointer */
 171 #define VIA_REG_OFFSET_CURR_PTR         0x04    /* dword - channel current pointer */
 172 #define VIA_REG_OFFSET_STOP_IDX         0x08    /* dword - stop index, channel type, sample rate */
 173 #define   VIA8233_REG_TYPE_16BIT        0x00200000      /* RW */
 174 #define   VIA8233_REG_TYPE_STEREO       0x00100000      /* RW */
 175 #define VIA_REG_OFFSET_CURR_COUNT       0x0c    /* dword - channel current count (24 bit) */
 176 #define VIA_REG_OFFSET_CURR_INDEX       0x0f    /* byte - channel current index (for via8233 only) */
 177
 178 #define DEFINE_VIA_REGSET(name,val) \
 179 enum {\
 180         VIA_REG_##name##_STATUS         = (val),\
 181         VIA_REG_##name##_CONTROL        = (val) + 0x01,\
 182         VIA_REG_##name##_TYPE           = (val) + 0x02,\
 183         VIA_REG_##name##_TABLE_PTR      = (val) + 0x04,\
 184         VIA_REG_##name##_CURR_PTR       = (val) + 0x04,\
 185         VIA_REG_##name##_STOP_IDX       = (val) + 0x08,\
 186         VIA_REG_##name##_CURR_COUNT     = (val) + 0x0c,\
 187 }
 188
 189 /* playback block */
 190 DEFINE_VIA_REGSET(PLAYBACK, 0x00);
 191 DEFINE_VIA_REGSET(CAPTURE, 0x10);
 192 DEFINE_VIA_REGSET(FM, 0x20);
 193
 194 /* AC'97 */
 195 #define VIA_REG_AC97                    0x80    /* dword */
 196 #define   VIA_REG_AC97_CODEC_ID_MASK    (3<<30)
 197 #define   VIA_REG_AC97_CODEC_ID_SHIFT   30
 198 #define   VIA_REG_AC97_CODEC_ID_PRIMARY 0x00
 199 #define   VIA_REG_AC97_CODEC_ID_SECONDARY 0x01
 200 #define   VIA_REG_AC97_SECONDARY_VALID  (1<<27)
 201 #define   VIA_REG_AC97_PRIMARY_VALID    (1<<25)
 202 #define   VIA_REG_AC97_BUSY             (1<<24)
 203 #define   VIA_REG_AC97_READ             (1<<23)
 204 #define   VIA_REG_AC97_CMD_SHIFT        16
 205 #define   VIA_REG_AC97_CMD_MASK         0x7e
 206 #define   VIA_REG_AC97_DATA_SHIFT       0
 207 #define   VIA_REG_AC97_DATA_MASK        0xffff
 208
 209 #define VIA_REG_SGD_SHADOW              0x84    /* dword */
 210 /* via686 */
 211 #define   VIA_REG_SGD_STAT_PB_FLAG      (1<<0)
 212 #define   VIA_REG_SGD_STAT_CP_FLAG      (1<<1)
 213 #define   VIA_REG_SGD_STAT_FM_FLAG      (1<<2)
 214 #define   VIA_REG_SGD_STAT_PB_EOL       (1<<4)
 215 #define   VIA_REG_SGD_STAT_CP_EOL       (1<<5)
 216 #define   VIA_REG_SGD_STAT_FM_EOL       (1<<6)
 217 #define   VIA_REG_SGD_STAT_PB_STOP      (1<<8)
 218 #define   VIA_REG_SGD_STAT_CP_STOP      (1<<9)
 219 #define   VIA_REG_SGD_STAT_FM_STOP      (1<<10)
 220 #define   VIA_REG_SGD_STAT_PB_ACTIVE    (1<<12)
 221 #define   VIA_REG_SGD_STAT_CP_ACTIVE    (1<<13)
 222 #define   VIA_REG_SGD_STAT_FM_ACTIVE    (1<<14)
 223 /* via8233 */
 224 #define   VIA8233_REG_SGD_STAT_FLAG     (1<<0)
 225 #define   VIA8233_REG_SGD_STAT_EOL      (1<<1)
 226 #define   VIA8233_REG_SGD_STAT_STOP     (1<<2)
 227 #define   VIA8233_REG_SGD_STAT_ACTIVE   (1<<3)
 228 #define VIA8233_INTR_MASK(chan) ((VIA8233_REG_SGD_STAT_FLAG|VIA8233_REG_SGD_STAT_EOL) << ((chan) * 4))
 229 #define   VIA8233_REG_SGD_CHAN_SDX      0
 230 #define   VIA8233_REG_SGD_CHAN_MULTI    4
 231 #define   VIA8233_REG_SGD_CHAN_REC      6
 232 #define   VIA8233_REG_SGD_CHAN_REC1     7
 233
 234 #define VIA_REG_GPI_STATUS              0x88
 235 #define VIA_REG_GPI_INTR                0x8c
 236
 237 /* multi-channel and capture registers for via8233 */
 238 DEFINE_VIA_REGSET(MULTPLAY, 0x40);
 239 DEFINE_VIA_REGSET(CAPTURE_8233, 0x60);
 240
 241 /* via8233-specific registers */
 242 #define VIA_REG_OFS_PLAYBACK_VOLUME_L   0x02    /* byte */
 243 #define VIA_REG_OFS_PLAYBACK_VOLUME_R   0x03    /* byte */
 244 #define VIA_REG_OFS_MULTPLAY_FORMAT     0x02    /* byte - format and channels */
 245 #define   VIA_REG_MULTPLAY_FMT_8BIT     0x00
 246 #define   VIA_REG_MULTPLAY_FMT_16BIT    0x80
 247 #define   VIA_REG_MULTPLAY_FMT_CH_MASK  0x70    /* # channels << 4 (valid = 1,2,4,6) */
 248 #define VIA_REG_OFS_CAPTURE_FIFO        0x02    /* byte - bit 6 = fifo  enable */
 249 #define   VIA_REG_CAPTURE_FIFO_ENABLE   0x40
 250
 251 #define VIA_DXS_MAX_VOLUME              31      /* max. volume (attenuation) of reg 0x32/33 */
 252
 253 #define VIA_REG_CAPTURE_CHANNEL         0x63    /* byte - input select */
 254 #define   VIA_REG_CAPTURE_CHANNEL_MIC   0x4
 255 #define   VIA_REG_CAPTURE_CHANNEL_LINE  0
 256 #define   VIA_REG_CAPTURE_SELECT_CODEC  0x03    /* recording source codec (0 = primary) */
 257
 258 #define VIA_TBL_BIT_FLAG        0x40000000
 259 #define VIA_TBL_BIT_EOL         0x80000000
 260
 261 /* pci space */
 262 #define VIA_ACLINK_STAT         0x40
 263 #define  VIA_ACLINK_C11_READY   0x20
 264 #define  VIA_ACLINK_C10_READY   0x10
 265 #define  VIA_ACLINK_C01_READY   0x04 /* secondary codec ready */
 266 #define  VIA_ACLINK_LOWPOWER    0x02 /* low-power state */
 267 #define  VIA_ACLINK_C00_READY   0x01 /* primary codec ready */
 268 #define VIA_ACLINK_CTRL         0x41
 269 #define  VIA_ACLINK_CTRL_ENABLE 0x80 /* 0: disable, 1: enable */
 270 #define  VIA_ACLINK_CTRL_RESET  0x40 /* 0: assert, 1: de-assert */
 271 #define  VIA_ACLINK_CTRL_SYNC   0x20 /* 0: release SYNC, 1: force SYNC hi */
 272 #define  VIA_ACLINK_CTRL_SDO    0x10 /* 0: release SDO, 1: force SDO hi */
 273 #define  VIA_ACLINK_CTRL_VRA    0x08 /* 0: disable VRA, 1: enable VRA */
 274 #define  VIA_ACLINK_CTRL_PCM    0x04 /* 0: disable PCM, 1: enable PCM */
 275 #define  VIA_ACLINK_CTRL_FM     0x02 /* via686 only */
 276 #define  VIA_ACLINK_CTRL_SB     0x01 /* via686 only */
 277 #define  VIA_ACLINK_CTRL_INIT   (VIA_ACLINK_CTRL_ENABLE|\
 278                                  VIA_ACLINK_CTRL_RESET|\
 279                                  VIA_ACLINK_CTRL_PCM|\
 280                                  VIA_ACLINK_CTRL_VRA)
 281 #define VIA_FUNC_ENABLE         0x42
 282 #define  VIA_FUNC_MIDI_PNP      0x80 /* FIXME: it's 0x40 in the datasheet! */
 283 #define  VIA_FUNC_MIDI_IRQMASK  0x40 /* FIXME: not documented! */
 284 #define  VIA_FUNC_RX2C_WRITE    0x20
 285 #define  VIA_FUNC_SB_FIFO_EMPTY 0x10
 286 #define  VIA_FUNC_ENABLE_GAME   0x08
 287 #define  VIA_FUNC_ENABLE_FM     0x04
 288 #define  VIA_FUNC_ENABLE_MIDI   0x02
 289 #define  VIA_FUNC_ENABLE_SB     0x01
 290 #define VIA_PNP_CONTROL         0x43
 291 #define VIA_FM_NMI_CTRL         0x48
 292 #define VIA8233_VOLCHG_CTRL     0x48
 293 #define VIA8233_SPDIF_CTRL      0x49
 294 #define  VIA8233_SPDIF_DX3      0x08
 295 #define  VIA8233_SPDIF_SLOT_MASK        0x03
 296 #define  VIA8233_SPDIF_SLOT_1011        0x00
 297 #define  VIA8233_SPDIF_SLOT_34          0x01
 298 #define  VIA8233_SPDIF_SLOT_78          0x02
 299 #define  VIA8233_SPDIF_SLOT_69          0x03
 300
 301 /*
 302  */
 303
 304 #define VIA_DXS_AUTO    0
 305 #define VIA_DXS_ENABLE  1
 306 #define VIA_DXS_DISABLE 2
 307 #define VIA_DXS_48K     3
 308 #define VIA_DXS_NO_VRA  4
 309 #define VIA_DXS_SRC     5
 310
 311
 312 /*
 313  * pcm stream
 314  */
 315
 316 struct snd_via_sg_table {
 317         unsigned int offset;
 318         unsigned int size;
 319 } ;
 320
 321 #define VIA_TABLE_SIZE  255
 322 #define VIA_MAX_BUFSIZE (1<<24)
 323
 324 struct viadev {
 325         unsigned int reg_offset;
 326         unsigned long port;
 327         int direction;  /* playback = 0, capture = 1 */
 328         struct snd_pcm_substream *substream;
 329         int running;
 330         unsigned int tbl_entries; /* # descriptors */
 331         struct snd_dma_buffer table;
 332         struct snd_via_sg_table *idx_table;
 333         /* for recovery from the unexpected pointer */
 334         unsigned int lastpos;
 335         unsigned int fragsize;
 336         unsigned int bufsize;
 337         unsigned int bufsize2;
 338         int hwptr_done;         /* processed frame position in the buffer */
 339         int in_interrupt;
 340         int shadow_shift;
 341 };
 342
 343
 344 enum { TYPE_CARD_VIA686 = 1, TYPE_CARD_VIA8233 };
 345 enum { TYPE_VIA686, TYPE_VIA8233, TYPE_VIA8233A };
 346
 347 #define VIA_MAX_DEVS    7       /* 4 playback, 1 multi, 2 capture */
 348
 349 struct via_rate_lock {
 350         spinlock_t lock;
 351         int rate;
 352         int used;
 353 };
 354
 355 struct via82xx {
 356         int irq;
 357
 358         unsigned long port;
 359         struct resource *mpu_res;
 360         int chip_type;
 361         unsigned char revision;
 362
 363         unsigned char old_legacy;
 364         unsigned char old_legacy_cfg;
 365 #ifdef CONFIG_PM_SLEEP
 366         unsigned char legacy_saved;
 367         unsigned char legacy_cfg_saved;
 368         unsigned char spdif_ctrl_saved;
 369         unsigned char capture_src_saved[2];
 370         unsigned int mpu_port_saved;
 371 #endif
 372
 373         unsigned char playback_volume[4][2]; /* for VIA8233/C/8235; default = 0 */
 374         unsigned char playback_volume_c[2]; /* for VIA8233/C/8235; default = 0 */
 375
 376         unsigned int intr_mask; /* SGD_SHADOW mask to check interrupts */
 377
 378         struct pci_dev *pci;
 379         struct snd_card *card;
 380
 381         unsigned int num_devs;
 382         unsigned int playback_devno, multi_devno, capture_devno;
 383         struct viadev devs[VIA_MAX_DEVS];
 384         struct via_rate_lock rates[2]; /* playback and capture */
 385         unsigned int dxs_fixed: 1;      /* DXS channel accepts only 48kHz */
 386         unsigned int no_vra: 1;         /* no need to set VRA on DXS channels */
 387         unsigned int dxs_src: 1;        /* use full SRC capabilities of DXS */
 388         unsigned int spdif_on: 1;       /* only spdif rates work to external DACs */
 389
 390         struct snd_pcm *pcms[2];
 391         struct snd_rawmidi *rmidi;
 392         struct snd_kcontrol *dxs_controls[4];
 393
 394         struct snd_ac97_bus *ac97_bus;
 395         struct snd_ac97 *ac97;
 396         unsigned int ac97_clock;
 397         unsigned int ac97_secondary;    /* secondary AC'97 codec is present */
 398
 399         spinlock_t reg_lock;
 400         struct snd_info_entry *proc_entry;
 401
 402 #ifdef SUPPORT_JOYSTICK
 403         struct gameport *gameport;
 404 #endif
 405 };
 406
 407 static const struct pci_device_id snd_via82xx_ids[] = {
 408         /* 0x1106, 0x3058 */
 409         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C686_5), TYPE_CARD_VIA686, },    /* 686A */
 410         /* 0x1106, 0x3059 */
 411         { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8233_5), TYPE_CARD_VIA8233, },     /* VT8233 */
 412         { 0, }
 413 };
 414
 415 MODULE_DEVICE_TABLE(pci, snd_via82xx_ids);
 416
 417 /*
 418  */
 419
 420 /*
 421  * allocate and initialize the descriptor buffers
 422  * periods = number of periods
 423  * fragsize = period size in bytes
 424  */
 425 static int build_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
 426                            struct pci_dev *pci,
 427                            unsigned int periods, unsigned int fragsize)
 428 {
 429         unsigned int i, idx, ofs, rest;
 430         struct via82xx *chip = snd_pcm_substream_chip(substream);
 431
 432         if (dev->table.area == NULL) {
 433                 /* the start of each lists must be aligned to 8 bytes,
 434                  * but the kernel pages are much bigger, so we don't care
 435                  */
 436                 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->pci),
 437                                         PAGE_ALIGN(VIA_TABLE_SIZE * 2 * 8),
 438                                         &dev->table) < 0)
 439                         return -ENOMEM;
 440         }
 441         if (! dev->idx_table) {
 442                 dev->idx_table = kmalloc_array(VIA_TABLE_SIZE,
 443                                                sizeof(*dev->idx_table),
 444                                                GFP_KERNEL);
 445                 if (! dev->idx_table)
 446                         return -ENOMEM;
 447         }
 448
 449         /* fill the entries */
 450         idx = 0;
 451         ofs = 0;
 452         for (i = 0; i < periods; i++) {
 453                 rest = fragsize;
 454                 /* fill descriptors for a period.
 455                  * a period can be split to several descriptors if it's
 456                  * over page boundary.
 457                  */
 458                 do {
 459                         unsigned int r;
 460                         unsigned int flag;
 461                         unsigned int addr;
 462
 463                         if (idx >= VIA_TABLE_SIZE) {
 464                                 dev_err(&pci->dev, "too much table size!\n");
 465                                 return -EINVAL;
 466                         }
 467                         addr = snd_pcm_sgbuf_get_addr(substream, ofs);
 468                         ((u32 *)dev->table.area)[idx << 1] = cpu_to_le32(addr);
 469                         r = snd_pcm_sgbuf_get_chunk_size(substream, ofs, rest);
 470                         rest -= r;
 471                         if (! rest) {
 472                                 if (i == periods - 1)
 473                                         flag = VIA_TBL_BIT_EOL; /* buffer boundary */
 474                                 else
 475                                         flag = VIA_TBL_BIT_FLAG; /* period boundary */
 476                         } else
 477                                 flag = 0; /* period continues to the next */
 478                         /*
 479                         dev_dbg(&pci->dev,
 480                                 "tbl %d: at %d  size %d (rest %d)\n",
 481                                 idx, ofs, r, rest);
 482                         */
 483                         ((u32 *)dev->table.area)[(idx<<1) + 1] = cpu_to_le32(r | flag);
 484                         dev->idx_table[idx].offset = ofs;
 485                         dev->idx_table[idx].size = r;
 486                         ofs += r;
 487                         idx++;
 488                 } while (rest > 0);
 489         }
 490         dev->tbl_entries = idx;
 491         dev->bufsize = periods * fragsize;
 492         dev->bufsize2 = dev->bufsize / 2;
 493         dev->fragsize = fragsize;
 494         return 0;
 495 }
 496
 497
 498 static int clean_via_table(struct viadev *dev, struct snd_pcm_substream *substream,
 499                            struct pci_dev *pci)
 500 {
 501         if (dev->table.area) {
 502                 snd_dma_free_pages(&dev->table);
 503                 dev->table.area = NULL;
 504         }
 505         kfree(dev->idx_table);
 506         dev->idx_table = NULL;
 507         return 0;
 508 }
 509
 510 /*
 511  *  Basic I/O
 512  */
 513
 514 static inline unsigned int snd_via82xx_codec_xread(struct via82xx *chip)
 515 {
 516         return inl(VIAREG(chip, AC97));
 517 }
 518
 519 static inline void snd_via82xx_codec_xwrite(struct via82xx *chip, unsigned int val)
 520 {
 521         outl(val, VIAREG(chip, AC97));
 522 }
 523
 524 static int snd_via82xx_codec_ready(struct via82xx *chip, int secondary)
 525 {
 526         unsigned int timeout = 1000;    /* 1ms */
 527         unsigned int val;
 528
 529         while (timeout-- > 0) {
 530                 udelay(1);
 531                 if (!((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY))
 532                         return val & 0xffff;
 533         }
 534         dev_err(chip->card->dev, "codec_ready: codec %i is not ready [0x%x]\n",
 535                    secondary, snd_via82xx_codec_xread(chip));
 536         return -EIO;
 537 }
 538
 539 static int snd_via82xx_codec_valid(struct via82xx *chip, int secondary)
 540 {
 541         unsigned int timeout = 1000;    /* 1ms */
 542         unsigned int val, val1;
 543         unsigned int stat = !secondary ? VIA_REG_AC97_PRIMARY_VALID :
 544                                          VIA_REG_AC97_SECONDARY_VALID;
 545
 546         while (timeout-- > 0) {
 547                 val = snd_via82xx_codec_xread(chip);
 548                 val1 = val & (VIA_REG_AC97_BUSY | stat);
 549                 if (val1 == stat)
 550                         return val & 0xffff;
 551                 udelay(1);
 552         }
 553         return -EIO;
 554 }
 555
 556 static void snd_via82xx_codec_wait(struct snd_ac97 *ac97)
 557 {
 558         struct via82xx *chip = ac97->private_data;
 559         int err;
 560         err = snd_via82xx_codec_ready(chip, ac97->num);
 561         /* here we need to wait fairly for long time.. */
 562         if (!nodelay)
 563                 msleep(500);
 564 }
 565
 566 static void snd_via82xx_codec_write(struct snd_ac97 *ac97,
 567                                     unsigned short reg,
 568                                     unsigned short val)
 569 {
 570         struct via82xx *chip = ac97->private_data;
 571         unsigned int xval;
 572
 573         xval = !ac97->num ? VIA_REG_AC97_CODEC_ID_PRIMARY : VIA_REG_AC97_CODEC_ID_SECONDARY;
 574         xval <<= VIA_REG_AC97_CODEC_ID_SHIFT;
 575         xval |= reg << VIA_REG_AC97_CMD_SHIFT;
 576         xval |= val << VIA_REG_AC97_DATA_SHIFT;
 577         snd_via82xx_codec_xwrite(chip, xval);
 578         snd_via82xx_codec_ready(chip, ac97->num);
 579 }
 580
 581 static unsigned short snd_via82xx_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 582 {
 583         struct via82xx *chip = ac97->private_data;
 584         unsigned int xval, val = 0xffff;
 585         int again = 0;
 586
 587         xval = ac97->num << VIA_REG_AC97_CODEC_ID_SHIFT;
 588         xval |= ac97->num ? VIA_REG_AC97_SECONDARY_VALID : VIA_REG_AC97_PRIMARY_VALID;
 589         xval |= VIA_REG_AC97_READ;
 590         xval |= (reg & 0x7f) << VIA_REG_AC97_CMD_SHIFT;
 591         while (1) {
 592                 if (again++ > 3) {
 593                         dev_err(chip->card->dev,
 594                                 "codec_read: codec %i is not valid [0x%x]\n",
 595                                    ac97->num, snd_via82xx_codec_xread(chip));
 596                         return 0xffff;
 597                 }
 598                 snd_via82xx_codec_xwrite(chip, xval);
 599                 udelay (20);
 600                 if (snd_via82xx_codec_valid(chip, ac97->num) >= 0) {
 601                         udelay(25);
 602                         val = snd_via82xx_codec_xread(chip);
 603                         break;
 604                 }
 605         }
 606         return val & 0xffff;
 607 }
 608
 609 static void snd_via82xx_channel_reset(struct via82xx *chip, struct viadev *viadev)
 610 {
 611         outb(VIA_REG_CTRL_PAUSE | VIA_REG_CTRL_TERMINATE | VIA_REG_CTRL_RESET,
 612              VIADEV_REG(viadev, OFFSET_CONTROL));
 613         inb(VIADEV_REG(viadev, OFFSET_CONTROL));
 614         udelay(50);
 615         /* disable interrupts */
 616         outb(0x00, VIADEV_REG(viadev, OFFSET_CONTROL));
 617         /* clear interrupts */
 618         outb(0x03, VIADEV_REG(viadev, OFFSET_STATUS));
 619         outb(0x00, VIADEV_REG(viadev, OFFSET_TYPE)); /* for via686 */
 620         // outl(0, VIADEV_REG(viadev, OFFSET_CURR_PTR));
 621         viadev->lastpos = 0;
 622         viadev->hwptr_done = 0;
 623 }
 624
 625
 626 /*
 627  *  Interrupt handler
 628  *  Used for 686 and 8233A
 629  */
 630 static irqreturn_t snd_via686_interrupt(int irq, void *dev_id)
 631 {
 632         struct via82xx *chip = dev_id;
 633         unsigned int status;
 634         unsigned int i;
 635
 636         status = inl(VIAREG(chip, SGD_SHADOW));
 637         if (! (status & chip->intr_mask)) {
 638                 if (chip->rmidi)
 639                         /* check mpu401 interrupt */
 640                         return snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
 641                 return IRQ_NONE;
 642         }
 643
 644         /* check status for each stream */
 645         spin_lock(&chip->reg_lock);
 646         for (i = 0; i < chip->num_devs; i++) {
 647                 struct viadev *viadev = &chip->devs[i];
 648                 unsigned char c_status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
 649                 if (! (c_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG|VIA_REG_STAT_STOPPED)))
 650                         continue;
 651                 if (viadev->substream && viadev->running) {
 652                         /*
 653                          * Update hwptr_done based on 'period elapsed'
 654                          * interrupts. We'll use it, when the chip returns 0
 655                          * for OFFSET_CURR_COUNT.
 656                          */
 657                         if (c_status & VIA_REG_STAT_EOL)
 658                                 viadev->hwptr_done = 0;
 659                         else
 660                                 viadev->hwptr_done += viadev->fragsize;
 661                         viadev->in_interrupt = c_status;
 662                         spin_unlock(&chip->reg_lock);
 663                         snd_pcm_period_elapsed(viadev->substream);
 664                         spin_lock(&chip->reg_lock);
 665                         viadev->in_interrupt = 0;
 666                 }
 667                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
 668         }
 669         spin_unlock(&chip->reg_lock);
 670         return IRQ_HANDLED;
 671 }
 672
 673 /*
 674  *  Interrupt handler
 675  */
 676 static irqreturn_t snd_via8233_interrupt(int irq, void *dev_id)
 677 {
 678         struct via82xx *chip = dev_id;
 679         unsigned int status;
 680         unsigned int i;
 681         int irqreturn = 0;
 682
 683         /* check status for each stream */
 684         spin_lock(&chip->reg_lock);
 685         status = inl(VIAREG(chip, SGD_SHADOW));
 686
 687         for (i = 0; i < chip->num_devs; i++) {
 688                 struct viadev *viadev = &chip->devs[i];
 689                 struct snd_pcm_substream *substream;
 690                 unsigned char c_status, shadow_status;
 691
 692                 shadow_status = (status >> viadev->shadow_shift) &
 693                         (VIA8233_SHADOW_STAT_ACTIVE|VIA_REG_STAT_EOL|
 694                          VIA_REG_STAT_FLAG);
 695                 c_status = shadow_status & (VIA_REG_STAT_EOL|VIA_REG_STAT_FLAG);
 696                 if (!c_status)
 697                         continue;
 698
 699                 substream = viadev->substream;
 700                 if (substream && viadev->running) {
 701                         /*
 702                          * Update hwptr_done based on 'period elapsed'
 703                          * interrupts. We'll use it, when the chip returns 0
 704                          * for OFFSET_CURR_COUNT.
 705                          */
 706                         if (c_status & VIA_REG_STAT_EOL)
 707                                 viadev->hwptr_done = 0;
 708                         else
 709                                 viadev->hwptr_done += viadev->fragsize;
 710                         viadev->in_interrupt = c_status;
 711                         if (shadow_status & VIA8233_SHADOW_STAT_ACTIVE)
 712                                 viadev->in_interrupt |= VIA_REG_STAT_ACTIVE;
 713                         spin_unlock(&chip->reg_lock);
 714
 715                         snd_pcm_period_elapsed(substream);
 716
 717                         spin_lock(&chip->reg_lock);
 718                         viadev->in_interrupt = 0;
 719                 }
 720                 outb(c_status, VIADEV_REG(viadev, OFFSET_STATUS)); /* ack */
 721                 irqreturn = 1;
 722         }
 723         spin_unlock(&chip->reg_lock);
 724         return IRQ_RETVAL(irqreturn);
 725 }
 726
 727 /*
 728  *  PCM callbacks
 729  */
 730
 731 /*
 732  * trigger callback
 733  */
 734 static int snd_via82xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 735 {
 736         struct via82xx *chip = snd_pcm_substream_chip(substream);
 737         struct viadev *viadev = substream->runtime->private_data;
 738         unsigned char val;
 739
 740         if (chip->chip_type != TYPE_VIA686)
 741                 val = VIA_REG_CTRL_INT;
 742         else
 743                 val = 0;
 744         switch (cmd) {
 745         case SNDRV_PCM_TRIGGER_START:
 746         case SNDRV_PCM_TRIGGER_RESUME:
 747                 val |= VIA_REG_CTRL_START;
 748                 viadev->running = 1;
 749                 break;
 750         case SNDRV_PCM_TRIGGER_STOP:
 751         case SNDRV_PCM_TRIGGER_SUSPEND:
 752                 val = VIA_REG_CTRL_TERMINATE;
 753                 viadev->running = 0;
 754                 break;
 755         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 756                 val |= VIA_REG_CTRL_PAUSE;
 757                 viadev->running = 0;
 758                 break;
 759         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 760                 viadev->running = 1;
 761                 break;
 762         default:
 763                 return -EINVAL;
 764         }
 765         outb(val, VIADEV_REG(viadev, OFFSET_CONTROL));
 766         if (cmd == SNDRV_PCM_TRIGGER_STOP)
 767                 snd_via82xx_channel_reset(chip, viadev);
 768         return 0;
 769 }
 770
 771
 772 /*
 773  * pointer callbacks
 774  */
 775
 776 /*
 777  * calculate the linear position at the given sg-buffer index and the rest count
 778  */
 779
 780 #define check_invalid_pos(viadev,pos) \
 781         ((pos) < viadev->lastpos && ((pos) >= viadev->bufsize2 ||\
 782                                      viadev->lastpos < viadev->bufsize2))
 783
 784 static inline unsigned int calc_linear_pos(struct via82xx *chip,
 785                                            struct viadev *viadev,
 786                                            unsigned int idx,
 787                                            unsigned int count)
 788 {
 789         unsigned int size, base, res;
 790
 791         size = viadev->idx_table[idx].size;
 792         base = viadev->idx_table[idx].offset;
 793         res = base + size - count;
 794         if (res >= viadev->bufsize)
 795                 res -= viadev->bufsize;
 796
 797         /* check the validity of the calculated position */
 798         if (size < count) {
 799                 dev_dbg(chip->card->dev,
 800                         "invalid via82xx_cur_ptr (size = %d, count = %d)\n",
 801                            (int)size, (int)count);
 802                 res = viadev->lastpos;
 803         } else {
 804                 if (! count) {
 805                         /* Some mobos report count = 0 on the DMA boundary,
 806                          * i.e. count = size indeed.
 807                          * Let's check whether this step is above the expected size.
 808                          */
 809                         int delta = res - viadev->lastpos;
 810                         if (delta < 0)
 811                                 delta += viadev->bufsize;
 812                         if ((unsigned int)delta > viadev->fragsize)
 813                                 res = base;
 814                 }
 815                 if (check_invalid_pos(viadev, res)) {
 816 #ifdef POINTER_DEBUG
 817                         dev_dbg(chip->card->dev,
 818                                 "fail: idx = %i/%i, lastpos = 0x%x, bufsize2 = 0x%x, offsize = 0x%x, size = 0x%x, count = 0x%x\n",
 819                                 idx, viadev->tbl_entries,
 820                                viadev->lastpos, viadev->bufsize2,
 821                                viadev->idx_table[idx].offset,
 822                                viadev->idx_table[idx].size, count);
 823 #endif
 824                         /* count register returns full size when end of buffer is reached */
 825                         res = base + size;
 826                         if (check_invalid_pos(viadev, res)) {
 827                                 dev_dbg(chip->card->dev,
 828                                         "invalid via82xx_cur_ptr (2), using last valid pointer\n");
 829                                 res = viadev->lastpos;
 830                         }
 831                 }
 832         }
 833         return res;
 834 }
 835
 836 /*
 837  * get the current pointer on via686
 838  */
 839 static snd_pcm_uframes_t snd_via686_pcm_pointer(struct snd_pcm_substream *substream)
 840 {
 841         struct via82xx *chip = snd_pcm_substream_chip(substream);
 842         struct viadev *viadev = substream->runtime->private_data;
 843         unsigned int idx, ptr, count, res;
 844
 845         if (snd_BUG_ON(!viadev->tbl_entries))
 846                 return 0;
 847         if (!(inb(VIADEV_REG(viadev, OFFSET_STATUS)) & VIA_REG_STAT_ACTIVE))
 848                 return 0;
 849
 850         spin_lock(&chip->reg_lock);
 851         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT)) & 0xffffff;
 852         /* The via686a does not have the current index register,
 853          * so we need to calculate the index from CURR_PTR.
 854          */
 855         ptr = inl(VIADEV_REG(viadev, OFFSET_CURR_PTR));
 856         if (ptr <= (unsigned int)viadev->table.addr)
 857                 idx = 0;
 858         else /* CURR_PTR holds the address + 8 */
 859                 idx = ((ptr - (unsigned int)viadev->table.addr) / 8 - 1) % viadev->tbl_entries;
 860         res = calc_linear_pos(chip, viadev, idx, count);
 861         viadev->lastpos = res; /* remember the last position */
 862         spin_unlock(&chip->reg_lock);
 863
 864         return bytes_to_frames(substream->runtime, res);
 865 }
 866
 867 /*
 868  * get the current pointer on via823x
 869  */
 870 static snd_pcm_uframes_t snd_via8233_pcm_pointer(struct snd_pcm_substream *substream)
 871 {
 872         struct via82xx *chip = snd_pcm_substream_chip(substream);
 873         struct viadev *viadev = substream->runtime->private_data;
 874         unsigned int idx, count, res;
 875         int status;
 876
 877         if (snd_BUG_ON(!viadev->tbl_entries))
 878                 return 0;
 879
 880         spin_lock(&chip->reg_lock);
 881         count = inl(VIADEV_REG(viadev, OFFSET_CURR_COUNT));
 882         status = viadev->in_interrupt;
 883         if (!status)
 884                 status = inb(VIADEV_REG(viadev, OFFSET_STATUS));
 885
 886         /* An apparent bug in the 8251 is worked around by sending a
 887          * REG_CTRL_START. */
 888         if (chip->revision == VIA_REV_8251 && (status & VIA_REG_STAT_EOL))
 889                 snd_via82xx_pcm_trigger(substream, SNDRV_PCM_TRIGGER_START);
 890
 891         if (!(status & VIA_REG_STAT_ACTIVE)) {
 892                 res = 0;
 893                 goto unlock;
 894         }
 895         if (count & 0xffffff) {
 896                 idx = count >> 24;
 897                 if (idx >= viadev->tbl_entries) {
 898 #ifdef POINTER_DEBUG
 899                         dev_dbg(chip->card->dev,
 900                                 "fail: invalid idx = %i/%i\n", idx,
 901                                viadev->tbl_entries);
 902 #endif
 903                         res = viadev->lastpos;
 904                 } else {
 905                         count &= 0xffffff;
 906                         res = calc_linear_pos(chip, viadev, idx, count);
 907                 }
 908         } else {
 909                 res = viadev->hwptr_done;
 910                 if (!viadev->in_interrupt) {
 911                         if (status & VIA_REG_STAT_EOL) {
 912                                 res = 0;
 913                         } else
 914                                 if (status & VIA_REG_STAT_FLAG) {
 915                                         res += viadev->fragsize;
 916                                 }
 917                 }
 918         }
 919 unlock:
 920         viadev->lastpos = res;
 921         spin_unlock(&chip->reg_lock);
 922
 923         return bytes_to_frames(substream->runtime, res);
 924 }
 925
 926
 927 /*
 928  * hw_params callback:
 929  * allocate the buffer and build up the buffer description table
 930  */
 931 static int snd_via82xx_hw_params(struct snd_pcm_substream *substream,
 932                                  struct snd_pcm_hw_params *hw_params)
 933 {
 934         struct via82xx *chip = snd_pcm_substream_chip(substream);
 935         struct viadev *viadev = substream->runtime->private_data;
 936         int err;
 937
 938         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 939         if (err < 0)
 940                 return err;
 941         err = build_via_table(viadev, substream, chip->pci,
 942                               params_periods(hw_params),
 943                               params_period_bytes(hw_params));
 944         if (err < 0)
 945                 return err;
 946
 947         return 0;
 948 }
 949
 950 /*
 951  * hw_free callback:
 952  * clean up the buffer description table and release the buffer
 953  */
 954 static int snd_via82xx_hw_free(struct snd_pcm_substream *substream)
 955 {
 956         struct via82xx *chip = snd_pcm_substream_chip(substream);
 957         struct viadev *viadev = substream->runtime->private_data;
 958
 959         clean_via_table(viadev, substream, chip->pci);
 960         snd_pcm_lib_free_pages(substream);
 961         return 0;
 962 }
 963
 964
 965 /*
 966  * set up the table pointer
 967  */
 968 static void snd_via82xx_set_table_ptr(struct via82xx *chip, struct viadev *viadev)
 969 {
 970         snd_via82xx_codec_ready(chip, 0);
 971         outl((u32)viadev->table.addr, VIADEV_REG(viadev, OFFSET_TABLE_PTR));
 972         udelay(20);
 973         snd_via82xx_codec_ready(chip, 0);
 974 }
 975
 976 /*
 977  * prepare callback for playback and capture on via686
 978  */
 979 static void via686_setup_format(struct via82xx *chip, struct viadev *viadev,
 980                                 struct snd_pcm_runtime *runtime)
 981 {
 982         snd_via82xx_channel_reset(chip, viadev);
 983         /* this must be set after channel_reset */
 984         snd_via82xx_set_table_ptr(chip, viadev);
 985         outb(VIA_REG_TYPE_AUTOSTART |
 986              (runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA_REG_TYPE_16BIT : 0) |
 987              (runtime->channels > 1 ? VIA_REG_TYPE_STEREO : 0) |
 988              ((viadev->reg_offset & 0x10) == 0 ? VIA_REG_TYPE_INT_LSAMPLE : 0) |
 989              VIA_REG_TYPE_INT_EOL |
 990              VIA_REG_TYPE_INT_FLAG, VIADEV_REG(viadev, OFFSET_TYPE));
 991 }
 992
 993 static int snd_via686_playback_prepare(struct snd_pcm_substream *substream)
 994 {
 995         struct via82xx *chip = snd_pcm_substream_chip(substream);
 996         struct viadev *viadev = substream->runtime->private_data;
 997         struct snd_pcm_runtime *runtime = substream->runtime;
 998
 999         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1000         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1001         via686_setup_format(chip, viadev, runtime);
1002         return 0;
1003 }
1004
1005 static int snd_via686_capture_prepare(struct snd_pcm_substream *substream)
1006 {
1007         struct via82xx *chip = snd_pcm_substream_chip(substream);
1008         struct viadev *viadev = substream->runtime->private_data;
1009         struct snd_pcm_runtime *runtime = substream->runtime;
1010
1011         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1012         via686_setup_format(chip, viadev, runtime);
1013         return 0;
1014 }
1015
1016 /*
1017  * lock the current rate
1018  */
1019 static int via_lock_rate(struct via_rate_lock *rec, int rate)
1020 {
1021         int changed = 0;
1022
1023         spin_lock_irq(&rec->lock);
1024         if (rec->rate != rate) {
1025                 if (rec->rate && rec->used > 1) /* already set */
1026                         changed = -EINVAL;
1027                 else {
1028                         rec->rate = rate;
1029                         changed = 1;
1030                 }
1031         }
1032         spin_unlock_irq(&rec->lock);
1033         return changed;
1034 }
1035
1036 /*
1037  * prepare callback for DSX playback on via823x
1038  */
1039 static int snd_via8233_playback_prepare(struct snd_pcm_substream *substream)
1040 {
1041         struct via82xx *chip = snd_pcm_substream_chip(substream);
1042         struct viadev *viadev = substream->runtime->private_data;
1043         struct snd_pcm_runtime *runtime = substream->runtime;
1044         int ac97_rate = chip->dxs_src ? 48000 : runtime->rate;
1045         int rate_changed;
1046         u32 rbits;
1047
1048         if ((rate_changed = via_lock_rate(&chip->rates[0], ac97_rate)) < 0)
1049                 return rate_changed;
1050         if (rate_changed)
1051                 snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE,
1052                                   chip->no_vra ? 48000 : runtime->rate);
1053         if (chip->spdif_on && viadev->reg_offset == 0x30)
1054                 snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1055
1056         if (runtime->rate == 48000)
1057                 rbits = 0xfffff;
1058         else
1059                 rbits = (0x100000 / 48000) * runtime->rate +
1060                         ((0x100000 % 48000) * runtime->rate) / 48000;
1061         snd_BUG_ON(rbits & ~0xfffff);
1062         snd_via82xx_channel_reset(chip, viadev);
1063         snd_via82xx_set_table_ptr(chip, viadev);
1064         outb(chip->playback_volume[viadev->reg_offset / 0x10][0],
1065              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_L));
1066         outb(chip->playback_volume[viadev->reg_offset / 0x10][1],
1067              VIADEV_REG(viadev, OFS_PLAYBACK_VOLUME_R));
1068         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) | /* format */
1069              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) | /* stereo */
1070              rbits | /* rate */
1071              0xff000000,    /* STOP index is never reached */
1072              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1073         udelay(20);
1074         snd_via82xx_codec_ready(chip, 0);
1075         return 0;
1076 }
1077
1078 /*
1079  * prepare callback for multi-channel playback on via823x
1080  */
1081 static int snd_via8233_multi_prepare(struct snd_pcm_substream *substream)
1082 {
1083         struct via82xx *chip = snd_pcm_substream_chip(substream);
1084         struct viadev *viadev = substream->runtime->private_data;
1085         struct snd_pcm_runtime *runtime = substream->runtime;
1086         unsigned int slots;
1087         int fmt;
1088
1089         if (via_lock_rate(&chip->rates[0], runtime->rate) < 0)
1090                 return -EINVAL;
1091         snd_ac97_set_rate(chip->ac97, AC97_PCM_FRONT_DAC_RATE, runtime->rate);
1092         snd_ac97_set_rate(chip->ac97, AC97_PCM_SURR_DAC_RATE, runtime->rate);
1093         snd_ac97_set_rate(chip->ac97, AC97_PCM_LFE_DAC_RATE, runtime->rate);
1094         snd_ac97_set_rate(chip->ac97, AC97_SPDIF, runtime->rate);
1095         snd_via82xx_channel_reset(chip, viadev);
1096         snd_via82xx_set_table_ptr(chip, viadev);
1097
1098         fmt = (runtime->format == SNDRV_PCM_FORMAT_S16_LE) ?
1099                 VIA_REG_MULTPLAY_FMT_16BIT : VIA_REG_MULTPLAY_FMT_8BIT;
1100         fmt |= runtime->channels << 4;
1101         outb(fmt, VIADEV_REG(viadev, OFS_MULTPLAY_FORMAT));
1102 #if 0
1103         if (chip->revision == VIA_REV_8233A)
1104                 slots = 0;
1105         else
1106 #endif
1107         {
1108                 /* set sample number to slot 3, 4, 7, 8, 6, 9 (for VIA8233/C,8235) */
1109                 /* corresponding to FL, FR, RL, RR, C, LFE ?? */
1110                 switch (runtime->channels) {
1111                 case 1: slots = (1<<0) | (1<<4); break;
1112                 case 2: slots = (1<<0) | (2<<4); break;
1113                 case 3: slots = (1<<0) | (2<<4) | (5<<8); break;
1114                 case 4: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12); break;
1115                 case 5: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16); break;
1116                 case 6: slots = (1<<0) | (2<<4) | (3<<8) | (4<<12) | (5<<16) | (6<<20); break;
1117                 default: slots = 0; break;
1118                 }
1119         }
1120         /* STOP index is never reached */
1121         outl(0xff000000 | slots, VIADEV_REG(viadev, OFFSET_STOP_IDX));
1122         udelay(20);
1123         snd_via82xx_codec_ready(chip, 0);
1124         return 0;
1125 }
1126
1127 /*
1128  * prepare callback for capture on via823x
1129  */
1130 static int snd_via8233_capture_prepare(struct snd_pcm_substream *substream)
1131 {
1132         struct via82xx *chip = snd_pcm_substream_chip(substream);
1133         struct viadev *viadev = substream->runtime->private_data;
1134         struct snd_pcm_runtime *runtime = substream->runtime;
1135
1136         if (via_lock_rate(&chip->rates[1], runtime->rate) < 0)
1137                 return -EINVAL;
1138         snd_ac97_set_rate(chip->ac97, AC97_PCM_LR_ADC_RATE, runtime->rate);
1139         snd_via82xx_channel_reset(chip, viadev);
1140         snd_via82xx_set_table_ptr(chip, viadev);
1141         outb(VIA_REG_CAPTURE_FIFO_ENABLE, VIADEV_REG(viadev, OFS_CAPTURE_FIFO));
1142         outl((runtime->format == SNDRV_PCM_FORMAT_S16_LE ? VIA8233_REG_TYPE_16BIT : 0) |
1143              (runtime->channels > 1 ? VIA8233_REG_TYPE_STEREO : 0) |
1144              0xff000000,    /* STOP index is never reached */
1145              VIADEV_REG(viadev, OFFSET_STOP_IDX));
1146         udelay(20);
1147         snd_via82xx_codec_ready(chip, 0);
1148         return 0;
1149 }
1150
1151
1152 /*
1153  * pcm hardware definition, identical for both playback and capture
1154  */
1155 static const struct snd_pcm_hardware snd_via82xx_hw =
1156 {
1157         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1158                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1159                                  SNDRV_PCM_INFO_MMAP_VALID |
1160                                  /* SNDRV_PCM_INFO_RESUME | */
1161                                  SNDRV_PCM_INFO_PAUSE),
1162         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
1163         .rates =                SNDRV_PCM_RATE_48000,
1164         .rate_min =             48000,
1165         .rate_max =             48000,
1166         .channels_min =         1,
1167         .channels_max =         2,
1168         .buffer_bytes_max =     VIA_MAX_BUFSIZE,
1169         .period_bytes_min =     32,
1170         .period_bytes_max =     VIA_MAX_BUFSIZE / 2,
1171         .periods_min =          2,
1172         .periods_max =          VIA_TABLE_SIZE / 2,
1173         .fifo_size =            0,
1174 };
1175
1176
1177 /*
1178  * open callback skeleton
1179  */
1180 static int snd_via82xx_pcm_open(struct via82xx *chip, struct viadev *viadev,
1181                                 struct snd_pcm_substream *substream)
1182 {
1183         struct snd_pcm_runtime *runtime = substream->runtime;
1184         int err;
1185         struct via_rate_lock *ratep;
1186         bool use_src = false;
1187
1188         runtime->hw = snd_via82xx_hw;
1189
1190         /* set the hw rate condition */
1191         ratep = &chip->rates[viadev->direction];
1192         spin_lock_irq(&ratep->lock);
1193         ratep->used++;
1194         if (chip->spdif_on && viadev->reg_offset == 0x30) {
1195                 /* DXS#3 and spdif is on */
1196                 runtime->hw.rates = chip->ac97->rates[AC97_RATES_SPDIF];
1197                 snd_pcm_limit_hw_rates(runtime);
1198         } else if (chip->dxs_fixed && viadev->reg_offset < 0x40) {
1199                 /* fixed DXS playback rate */
1200                 runtime->hw.rates = SNDRV_PCM_RATE_48000;
1201                 runtime->hw.rate_min = runtime->hw.rate_max = 48000;
1202         } else if (chip->dxs_src && viadev->reg_offset < 0x40) {
1203                 /* use full SRC capabilities of DXS */
1204                 runtime->hw.rates = (SNDRV_PCM_RATE_CONTINUOUS |
1205                                      SNDRV_PCM_RATE_8000_48000);
1206                 runtime->hw.rate_min = 8000;
1207                 runtime->hw.rate_max = 48000;
1208                 use_src = true;
1209         } else if (! ratep->rate) {
1210                 int idx = viadev->direction ? AC97_RATES_ADC : AC97_RATES_FRONT_DAC;
1211                 runtime->hw.rates = chip->ac97->rates[idx];
1212                 snd_pcm_limit_hw_rates(runtime);
1213         } else {
1214                 /* a fixed rate */
1215                 runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
1216                 runtime->hw.rate_max = runtime->hw.rate_min = ratep->rate;
1217         }
1218         spin_unlock_irq(&ratep->lock);
1219
1220         /* we may remove following constaint when we modify table entries
1221            in interrupt */
1222         if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
1223                 return err;
1224
1225         if (use_src) {
1226                 err = snd_pcm_hw_rule_noresample(runtime, 48000);
1227                 if (err < 0)
1228                         return err;
1229         }
1230
1231         runtime->private_data = viadev;
1232         viadev->substream = substream;
1233
1234         return 0;
1235 }
1236
1237
1238 /*
1239  * open callback for playback on via686
1240  */
1241 static int snd_via686_playback_open(struct snd_pcm_substream *substream)
1242 {
1243         struct via82xx *chip = snd_pcm_substream_chip(substream);
1244         struct viadev *viadev = &chip->devs[chip->playback_devno + substream->number];
1245         int err;
1246
1247         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1248                 return err;
1249         return 0;
1250 }
1251
1252 /*
1253  * open callback for playback on via823x DXS
1254  */
1255 static int snd_via8233_playback_open(struct snd_pcm_substream *substream)
1256 {
1257         struct via82xx *chip = snd_pcm_substream_chip(substream);
1258         struct viadev *viadev;
1259         unsigned int stream;
1260         int err;
1261
1262         viadev = &chip->devs[chip->playback_devno + substream->number];
1263         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1264                 return err;
1265         stream = viadev->reg_offset / 0x10;
1266         if (chip->dxs_controls[stream]) {
1267                 chip->playback_volume[stream][0] =
1268                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1269                 chip->playback_volume[stream][1] =
1270                                 VIA_DXS_MAX_VOLUME - (dxs_init_volume & 31);
1271                 chip->dxs_controls[stream]->vd[0].access &=
1272                         ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1273                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE |
1274                                SNDRV_CTL_EVENT_MASK_INFO,
1275                                &chip->dxs_controls[stream]->id);
1276         }
1277         return 0;
1278 }
1279
1280 /*
1281  * open callback for playback on via823x multi-channel
1282  */
1283 static int snd_via8233_multi_open(struct snd_pcm_substream *substream)
1284 {
1285         struct via82xx *chip = snd_pcm_substream_chip(substream);
1286         struct viadev *viadev = &chip->devs[chip->multi_devno];
1287         int err;
1288         /* channels constraint for VIA8233A
1289          * 3 and 5 channels are not supported
1290          */
1291         static const unsigned int channels[] = {
1292                 1, 2, 4, 6
1293         };
1294         static const struct snd_pcm_hw_constraint_list hw_constraints_channels = {
1295                 .count = ARRAY_SIZE(channels),
1296                 .list = channels,
1297                 .mask = 0,
1298         };
1299
1300         if ((err = snd_via82xx_pcm_open(chip, viadev, substream)) < 0)
1301                 return err;
1302         substream->runtime->hw.channels_max = 6;
1303         if (chip->revision == VIA_REV_8233A)
1304                 snd_pcm_hw_constraint_list(substream->runtime, 0,
1305                                            SNDRV_PCM_HW_PARAM_CHANNELS,
1306                                            &hw_constraints_channels);
1307         return 0;
1308 }
1309
1310 /*
1311  * open callback for capture on via686 and via823x
1312  */
1313 static int snd_via82xx_capture_open(struct snd_pcm_substream *substream)
1314 {
1315         struct via82xx *chip = snd_pcm_substream_chip(substream);
1316         struct viadev *viadev = &chip->devs[chip->capture_devno + substream->pcm->device];
1317
1318         return snd_via82xx_pcm_open(chip, viadev, substream);
1319 }
1320
1321 /*
1322  * close callback
1323  */
1324 static int snd_via82xx_pcm_close(struct snd_pcm_substream *substream)
1325 {
1326         struct via82xx *chip = snd_pcm_substream_chip(substream);
1327         struct viadev *viadev = substream->runtime->private_data;
1328         struct via_rate_lock *ratep;
1329
1330         /* release the rate lock */
1331         ratep = &chip->rates[viadev->direction];
1332         spin_lock_irq(&ratep->lock);
1333         ratep->used--;
1334         if (! ratep->used)
1335                 ratep->rate = 0;
1336         spin_unlock_irq(&ratep->lock);
1337         if (! ratep->rate) {
1338                 if (! viadev->direction) {
1339                         snd_ac97_update_power(chip->ac97,
1340                                               AC97_PCM_FRONT_DAC_RATE, 0);
1341                         snd_ac97_update_power(chip->ac97,
1342                                               AC97_PCM_SURR_DAC_RATE, 0);
1343                         snd_ac97_update_power(chip->ac97,
1344                                               AC97_PCM_LFE_DAC_RATE, 0);
1345                 } else
1346                         snd_ac97_update_power(chip->ac97,
1347                                               AC97_PCM_LR_ADC_RATE, 0);
1348         }
1349         viadev->substream = NULL;
1350         return 0;
1351 }
1352
1353 static int snd_via8233_playback_close(struct snd_pcm_substream *substream)
1354 {
1355         struct via82xx *chip = snd_pcm_substream_chip(substream);
1356         struct viadev *viadev = substream->runtime->private_data;
1357         unsigned int stream;
1358
1359         stream = viadev->reg_offset / 0x10;
1360         if (chip->dxs_controls[stream]) {
1361                 chip->dxs_controls[stream]->vd[0].access |=
1362                         SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1363                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_INFO,
1364                                &chip->dxs_controls[stream]->id);
1365         }
1366         return snd_via82xx_pcm_close(substream);
1367 }
1368
1369
1370 /* via686 playback callbacks */
1371 static const struct snd_pcm_ops snd_via686_playback_ops = {
1372         .open =         snd_via686_playback_open,
1373         .close =        snd_via82xx_pcm_close,
1374         .ioctl =        snd_pcm_lib_ioctl,
1375         .hw_params =    snd_via82xx_hw_params,
1376         .hw_free =      snd_via82xx_hw_free,
1377         .prepare =      snd_via686_playback_prepare,
1378         .trigger =      snd_via82xx_pcm_trigger,
1379         .pointer =      snd_via686_pcm_pointer,
1380         .page =         snd_pcm_sgbuf_ops_page,
1381 };
1382
1383 /* via686 capture callbacks */
1384 static const struct snd_pcm_ops snd_via686_capture_ops = {
1385         .open =         snd_via82xx_capture_open,
1386         .close =        snd_via82xx_pcm_close,
1387         .ioctl =        snd_pcm_lib_ioctl,
1388         .hw_params =    snd_via82xx_hw_params,
1389         .hw_free =      snd_via82xx_hw_free,
1390         .prepare =      snd_via686_capture_prepare,
1391         .trigger =      snd_via82xx_pcm_trigger,
1392         .pointer =      snd_via686_pcm_pointer,
1393         .page =         snd_pcm_sgbuf_ops_page,
1394 };
1395
1396 /* via823x DSX playback callbacks */
1397 static const struct snd_pcm_ops snd_via8233_playback_ops = {
1398         .open =         snd_via8233_playback_open,
1399         .close =        snd_via8233_playback_close,
1400         .ioctl =        snd_pcm_lib_ioctl,
1401         .hw_params =    snd_via82xx_hw_params,
1402         .hw_free =      snd_via82xx_hw_free,
1403         .prepare =      snd_via8233_playback_prepare,
1404         .trigger =      snd_via82xx_pcm_trigger,
1405         .pointer =      snd_via8233_pcm_pointer,
1406         .page =         snd_pcm_sgbuf_ops_page,
1407 };
1408
1409 /* via823x multi-channel playback callbacks */
1410 static const struct snd_pcm_ops snd_via8233_multi_ops = {
1411         .open =         snd_via8233_multi_open,
1412         .close =        snd_via82xx_pcm_close,
1413         .ioctl =        snd_pcm_lib_ioctl,
1414         .hw_params =    snd_via82xx_hw_params,
1415         .hw_free =      snd_via82xx_hw_free,
1416         .prepare =      snd_via8233_multi_prepare,
1417         .trigger =      snd_via82xx_pcm_trigger,
1418         .pointer =      snd_via8233_pcm_pointer,
1419         .page =         snd_pcm_sgbuf_ops_page,
1420 };
1421
1422 /* via823x capture callbacks */
1423 static const struct snd_pcm_ops snd_via8233_capture_ops = {
1424         .open =         snd_via82xx_capture_open,
1425         .close =        snd_via82xx_pcm_close,
1426         .ioctl =        snd_pcm_lib_ioctl,
1427         .hw_params =    snd_via82xx_hw_params,
1428         .hw_free =      snd_via82xx_hw_free,
1429         .prepare =      snd_via8233_capture_prepare,
1430         .trigger =      snd_via82xx_pcm_trigger,
1431         .pointer =      snd_via8233_pcm_pointer,
1432         .page =         snd_pcm_sgbuf_ops_page,
1433 };
1434
1435
1436 static void init_viadev(struct via82xx *chip, int idx, unsigned int reg_offset,
1437                         int shadow_pos, int direction)
1438 {
1439         chip->devs[idx].reg_offset = reg_offset;
1440         chip->devs[idx].shadow_shift = shadow_pos * 4;
1441         chip->devs[idx].direction = direction;
1442         chip->devs[idx].port = chip->port + reg_offset;
1443 }
1444
1445 /*
1446  * create pcm instances for VIA8233, 8233C and 8235 (not 8233A)
1447  */
1448 static int snd_via8233_pcm_new(struct via82xx *chip)
1449 {
1450         struct snd_pcm *pcm;
1451         struct snd_pcm_chmap *chmap;
1452         int i, err;
1453
1454         chip->playback_devno = 0;       /* x 4 */
1455         chip->multi_devno = 4;          /* x 1 */
1456         chip->capture_devno = 5;        /* x 2 */
1457         chip->num_devs = 7;
1458         chip->intr_mask = 0x33033333; /* FLAG|EOL for rec0-1, mc, sdx0-3 */
1459
1460         /* PCM #0:  4 DSX playbacks and 1 capture */
1461         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 4, 1, &pcm);
1462         if (err < 0)
1463                 return err;
1464         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1465         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1466         pcm->private_data = chip;
1467         strcpy(pcm->name, chip->card->shortname);
1468         chip->pcms[0] = pcm;
1469         /* set up playbacks */
1470         for (i = 0; i < 4; i++)
1471                 init_viadev(chip, i, 0x10 * i, i, 0);
1472         /* capture */
1473         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1474
1475         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1476                                               snd_dma_pci_data(chip->pci),
1477                                               64*1024, VIA_MAX_BUFSIZE);
1478
1479         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1480                                      snd_pcm_std_chmaps, 2, 0,
1481                                      &chmap);
1482         if (err < 0)
1483                 return err;
1484
1485         /* PCM #1:  multi-channel playback and 2nd capture */
1486         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 1, &pcm);
1487         if (err < 0)
1488                 return err;
1489         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1490         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1491         pcm->private_data = chip;
1492         strcpy(pcm->name, chip->card->shortname);
1493         chip->pcms[1] = pcm;
1494         /* set up playback */
1495         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1496         /* set up capture */
1497         init_viadev(chip, chip->capture_devno + 1, VIA_REG_CAPTURE_8233_STATUS + 0x10, 7, 1);
1498
1499         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1500                                               snd_dma_pci_data(chip->pci),
1501                                               64*1024, VIA_MAX_BUFSIZE);
1502
1503         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1504                                      snd_pcm_alt_chmaps, 6, 0,
1505                                      &chmap);
1506         if (err < 0)
1507                 return err;
1508         chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1509
1510         return 0;
1511 }
1512
1513 /*
1514  * create pcm instances for VIA8233A
1515  */
1516 static int snd_via8233a_pcm_new(struct via82xx *chip)
1517 {
1518         struct snd_pcm *pcm;
1519         struct snd_pcm_chmap *chmap;
1520         int err;
1521
1522         chip->multi_devno = 0;
1523         chip->playback_devno = 1;
1524         chip->capture_devno = 2;
1525         chip->num_devs = 3;
1526         chip->intr_mask = 0x03033000; /* FLAG|EOL for rec0, mc, sdx3 */
1527
1528         /* PCM #0:  multi-channel playback and capture */
1529         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1530         if (err < 0)
1531                 return err;
1532         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_multi_ops);
1533         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via8233_capture_ops);
1534         pcm->private_data = chip;
1535         strcpy(pcm->name, chip->card->shortname);
1536         chip->pcms[0] = pcm;
1537         /* set up playback */
1538         init_viadev(chip, chip->multi_devno, VIA_REG_MULTPLAY_STATUS, 4, 0);
1539         /* capture */
1540         init_viadev(chip, chip->capture_devno, VIA_REG_CAPTURE_8233_STATUS, 6, 1);
1541
1542         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1543                                               snd_dma_pci_data(chip->pci),
1544                                               64*1024, VIA_MAX_BUFSIZE);
1545
1546         err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1547                                      snd_pcm_alt_chmaps, 6, 0,
1548                                      &chmap);
1549         if (err < 0)
1550                 return err;
1551         chip->ac97->chmaps[SNDRV_PCM_STREAM_PLAYBACK] = chmap;
1552
1553         /* SPDIF supported? */
1554         if (! ac97_can_spdif(chip->ac97))
1555                 return 0;
1556
1557         /* PCM #1:  DXS3 playback (for spdif) */
1558         err = snd_pcm_new(chip->card, chip->card->shortname, 1, 1, 0, &pcm);
1559         if (err < 0)
1560                 return err;
1561         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via8233_playback_ops);
1562         pcm->private_data = chip;
1563         strcpy(pcm->name, chip->card->shortname);
1564         chip->pcms[1] = pcm;
1565         /* set up playback */
1566         init_viadev(chip, chip->playback_devno, 0x30, 3, 0);
1567
1568         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1569                                               snd_dma_pci_data(chip->pci),
1570                                               64*1024, VIA_MAX_BUFSIZE);
1571         return 0;
1572 }
1573
1574 /*
1575  * create a pcm instance for via686a/b
1576  */
1577 static int snd_via686_pcm_new(struct via82xx *chip)
1578 {
1579         struct snd_pcm *pcm;
1580         int err;
1581
1582         chip->playback_devno = 0;
1583         chip->capture_devno = 1;
1584         chip->num_devs = 2;
1585         chip->intr_mask = 0x77; /* FLAG | EOL for PB, CP, FM */
1586
1587         err = snd_pcm_new(chip->card, chip->card->shortname, 0, 1, 1, &pcm);
1588         if (err < 0)
1589                 return err;
1590         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_via686_playback_ops);
1591         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_via686_capture_ops);
1592         pcm->private_data = chip;
1593         strcpy(pcm->name, chip->card->shortname);
1594         chip->pcms[0] = pcm;
1595         init_viadev(chip, 0, VIA_REG_PLAYBACK_STATUS, 0, 0);
1596         init_viadev(chip, 1, VIA_REG_CAPTURE_STATUS, 0, 1);
1597
1598         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1599                                               snd_dma_pci_data(chip->pci),
1600                                               64*1024, VIA_MAX_BUFSIZE);
1601         return 0;
1602 }
1603
1604
1605 /*
1606  *  Mixer part
1607  */
1608
1609 static int snd_via8233_capture_source_info(struct snd_kcontrol *kcontrol,
1610                                            struct snd_ctl_elem_info *uinfo)
1611 {
1612         /* formerly they were "Line" and "Mic", but it looks like that they
1613          * have nothing to do with the actual physical connections...
1614          */
1615         static const char * const texts[2] = {
1616                 "Input1", "Input2"
1617         };
1618         return snd_ctl_enum_info(uinfo, 1, 2, texts);
1619 }
1620
1621 static int snd_via8233_capture_source_get(struct snd_kcontrol *kcontrol,
1622                                           struct snd_ctl_elem_value *ucontrol)
1623 {
1624         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1625         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1626         ucontrol->value.enumerated.item[0] = inb(port) & VIA_REG_CAPTURE_CHANNEL_MIC ? 1 : 0;
1627         return 0;
1628 }
1629
1630 static int snd_via8233_capture_source_put(struct snd_kcontrol *kcontrol,
1631                                           struct snd_ctl_elem_value *ucontrol)
1632 {
1633         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1634         unsigned long port = chip->port + (kcontrol->id.index ? (VIA_REG_CAPTURE_CHANNEL + 0x10) : VIA_REG_CAPTURE_CHANNEL);
1635         u8 val, oval;
1636
1637         spin_lock_irq(&chip->reg_lock);
1638         oval = inb(port);
1639         val = oval & ~VIA_REG_CAPTURE_CHANNEL_MIC;
1640         if (ucontrol->value.enumerated.item[0])
1641                 val |= VIA_REG_CAPTURE_CHANNEL_MIC;
1642         if (val != oval)
1643                 outb(val, port);
1644         spin_unlock_irq(&chip->reg_lock);
1645         return val != oval;
1646 }
1647
1648 static struct snd_kcontrol_new snd_via8233_capture_source = {
1649         .name = "Input Source Select",
1650         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1651         .info = snd_via8233_capture_source_info,
1652         .get = snd_via8233_capture_source_get,
1653         .put = snd_via8233_capture_source_put,
1654 };
1655
1656 #define snd_via8233_dxs3_spdif_info     snd_ctl_boolean_mono_info
1657
1658 static int snd_via8233_dxs3_spdif_get(struct snd_kcontrol *kcontrol,
1659                                       struct snd_ctl_elem_value *ucontrol)
1660 {
1661         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1662         u8 val;
1663
1664         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
1665         ucontrol->value.integer.value[0] = (val & VIA8233_SPDIF_DX3) ? 1 : 0;
1666         return 0;
1667 }
1668
1669 static int snd_via8233_dxs3_spdif_put(struct snd_kcontrol *kcontrol,
1670                                       struct snd_ctl_elem_value *ucontrol)
1671 {
1672         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1673         u8 val, oval;
1674
1675         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &oval);
1676         val = oval & ~VIA8233_SPDIF_DX3;
1677         if (ucontrol->value.integer.value[0])
1678                 val |= VIA8233_SPDIF_DX3;
1679         /* save the spdif flag for rate filtering */
1680         chip->spdif_on = ucontrol->value.integer.value[0] ? 1 : 0;
1681         if (val != oval) {
1682                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
1683                 return 1;
1684         }
1685         return 0;
1686 }
1687
1688 static const struct snd_kcontrol_new snd_via8233_dxs3_spdif_control = {
1689         .name = SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH),
1690         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1691         .info = snd_via8233_dxs3_spdif_info,
1692         .get = snd_via8233_dxs3_spdif_get,
1693         .put = snd_via8233_dxs3_spdif_put,
1694 };
1695
1696 static int snd_via8233_dxs_volume_info(struct snd_kcontrol *kcontrol,
1697                                        struct snd_ctl_elem_info *uinfo)
1698 {
1699         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1700         uinfo->count = 2;
1701         uinfo->value.integer.min = 0;
1702         uinfo->value.integer.max = VIA_DXS_MAX_VOLUME;
1703         return 0;
1704 }
1705
1706 static int snd_via8233_dxs_volume_get(struct snd_kcontrol *kcontrol,
1707                                       struct snd_ctl_elem_value *ucontrol)
1708 {
1709         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1710         unsigned int idx = kcontrol->id.subdevice;
1711
1712         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][0];
1713         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume[idx][1];
1714         return 0;
1715 }
1716
1717 static int snd_via8233_pcmdxs_volume_get(struct snd_kcontrol *kcontrol,
1718                                          struct snd_ctl_elem_value *ucontrol)
1719 {
1720         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1721         ucontrol->value.integer.value[0] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[0];
1722         ucontrol->value.integer.value[1] = VIA_DXS_MAX_VOLUME - chip->playback_volume_c[1];
1723         return 0;
1724 }
1725
1726 static int snd_via8233_dxs_volume_put(struct snd_kcontrol *kcontrol,
1727                                       struct snd_ctl_elem_value *ucontrol)
1728 {
1729         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1730         unsigned int idx = kcontrol->id.subdevice;
1731         unsigned long port = chip->port + 0x10 * idx;
1732         unsigned char val;
1733         int i, change = 0;
1734
1735         for (i = 0; i < 2; i++) {
1736                 val = ucontrol->value.integer.value[i];
1737                 if (val > VIA_DXS_MAX_VOLUME)
1738                         val = VIA_DXS_MAX_VOLUME;
1739                 val = VIA_DXS_MAX_VOLUME - val;
1740                 change |= val != chip->playback_volume[idx][i];
1741                 if (change) {
1742                         chip->playback_volume[idx][i] = val;
1743                         outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1744                 }
1745         }
1746         return change;
1747 }
1748
1749 static int snd_via8233_pcmdxs_volume_put(struct snd_kcontrol *kcontrol,
1750                                          struct snd_ctl_elem_value *ucontrol)
1751 {
1752         struct via82xx *chip = snd_kcontrol_chip(kcontrol);
1753         unsigned int idx;
1754         unsigned char val;
1755         int i, change = 0;
1756
1757         for (i = 0; i < 2; i++) {
1758                 val = ucontrol->value.integer.value[i];
1759                 if (val > VIA_DXS_MAX_VOLUME)
1760                         val = VIA_DXS_MAX_VOLUME;
1761                 val = VIA_DXS_MAX_VOLUME - val;
1762                 if (val != chip->playback_volume_c[i]) {
1763                         change = 1;
1764                         chip->playback_volume_c[i] = val;
1765                         for (idx = 0; idx < 4; idx++) {
1766                                 unsigned long port = chip->port + 0x10 * idx;
1767                                 chip->playback_volume[idx][i] = val;
1768                                 outb(val, port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
1769                         }
1770                 }
1771         }
1772         return change;
1773 }
1774
1775 static const DECLARE_TLV_DB_SCALE(db_scale_dxs, -4650, 150, 1);
1776
1777 static const struct snd_kcontrol_new snd_via8233_pcmdxs_volume_control = {
1778         .name = "PCM Playback Volume",
1779         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1780         .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
1781                    SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1782         .info = snd_via8233_dxs_volume_info,
1783         .get = snd_via8233_pcmdxs_volume_get,
1784         .put = snd_via8233_pcmdxs_volume_put,
1785         .tlv = { .p = db_scale_dxs }
1786 };
1787
1788 static const struct snd_kcontrol_new snd_via8233_dxs_volume_control = {
1789         .iface = SNDRV_CTL_ELEM_IFACE_PCM,
1790         .device = 0,
1791         /* .subdevice set later */
1792         .name = "PCM Playback Volume",
1793         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
1794                   SNDRV_CTL_ELEM_ACCESS_TLV_READ |
1795                   SNDRV_CTL_ELEM_ACCESS_INACTIVE,
1796         .info = snd_via8233_dxs_volume_info,
1797         .get = snd_via8233_dxs_volume_get,
1798         .put = snd_via8233_dxs_volume_put,
1799         .tlv = { .p = db_scale_dxs }
1800 };
1801
1802 /*
1803  */
1804
1805 static void snd_via82xx_mixer_free_ac97_bus(struct snd_ac97_bus *bus)
1806 {
1807         struct via82xx *chip = bus->private_data;
1808         chip->ac97_bus = NULL;
1809 }
1810
1811 static void snd_via82xx_mixer_free_ac97(struct snd_ac97 *ac97)
1812 {
1813         struct via82xx *chip = ac97->private_data;
1814         chip->ac97 = NULL;
1815 }
1816
1817 static const struct ac97_quirk ac97_quirks[] = {
1818         {
1819                 .subvendor = 0x1106,
1820                 .subdevice = 0x4161,
1821                 .codec_id = 0x56494161, /* VT1612A */
1822                 .name = "Soltek SL-75DRV5",
1823                 .type = AC97_TUNE_NONE
1824         },
1825         {       /* FIXME: which codec? */
1826                 .subvendor = 0x1106,
1827                 .subdevice = 0x4161,
1828                 .name = "ASRock K7VT2",
1829                 .type = AC97_TUNE_HP_ONLY
1830         },
1831         {
1832                 .subvendor = 0x110a,
1833                 .subdevice = 0x0079,
1834                 .name = "Fujitsu Siemens D1289",
1835                 .type = AC97_TUNE_HP_ONLY
1836         },
1837         {
1838                 .subvendor = 0x1019,
1839                 .subdevice = 0x0a81,
1840                 .name = "ECS K7VTA3",
1841                 .type = AC97_TUNE_HP_ONLY
1842         },
1843         {
1844                 .subvendor = 0x1019,
1845                 .subdevice = 0x0a85,
1846                 .name = "ECS L7VMM2",
1847                 .type = AC97_TUNE_HP_ONLY
1848         },
1849         {
1850                 .subvendor = 0x1019,
1851                 .subdevice = 0x1841,
1852                 .name = "ECS K7VTA3",
1853                 .type = AC97_TUNE_HP_ONLY
1854         },
1855         {
1856                 .subvendor = 0x1849,
1857                 .subdevice = 0x3059,
1858                 .name = "ASRock K7VM2",
1859                 .type = AC97_TUNE_HP_ONLY       /* VT1616 */
1860         },
1861         {
1862                 .subvendor = 0x14cd,
1863                 .subdevice = 0x7002,
1864                 .name = "Unknown",
1865                 .type = AC97_TUNE_ALC_JACK
1866         },
1867         {
1868                 .subvendor = 0x1071,
1869                 .subdevice = 0x8590,
1870                 .name = "Mitac Mobo",
1871                 .type = AC97_TUNE_ALC_JACK
1872         },
1873         {
1874                 .subvendor = 0x161f,
1875                 .subdevice = 0x202b,
1876                 .name = "Arima Notebook",
1877                 .type = AC97_TUNE_HP_ONLY,
1878         },
1879         {
1880                 .subvendor = 0x161f,
1881                 .subdevice = 0x2032,
1882                 .name = "Targa Traveller 811",
1883                 .type = AC97_TUNE_HP_ONLY,
1884         },
1885         {
1886                 .subvendor = 0x161f,
1887                 .subdevice = 0x2032,
1888                 .name = "m680x",
1889                 .type = AC97_TUNE_HP_ONLY, /* http://launchpad.net/bugs/38546 */
1890         },
1891         {
1892                 .subvendor = 0x1297,
1893                 .subdevice = 0xa232,
1894                 .name = "Shuttle AK32VN",
1895                 .type = AC97_TUNE_HP_ONLY
1896         },
1897         { } /* terminator */
1898 };
1899
1900 static int snd_via82xx_mixer_new(struct via82xx *chip, const char *quirk_override)
1901 {
1902         struct snd_ac97_template ac97;
1903         int err;
1904         static struct snd_ac97_bus_ops ops = {
1905                 .write = snd_via82xx_codec_write,
1906                 .read = snd_via82xx_codec_read,
1907                 .wait = snd_via82xx_codec_wait,
1908         };
1909
1910         if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &chip->ac97_bus)) < 0)
1911                 return err;
1912         chip->ac97_bus->private_free = snd_via82xx_mixer_free_ac97_bus;
1913         chip->ac97_bus->clock = chip->ac97_clock;
1914
1915         memset(&ac97, 0, sizeof(ac97));
1916         ac97.private_data = chip;
1917         ac97.private_free = snd_via82xx_mixer_free_ac97;
1918         ac97.pci = chip->pci;
1919         ac97.scaps = AC97_SCAP_SKIP_MODEM | AC97_SCAP_POWER_SAVE;
1920         if ((err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97)) < 0)
1921                 return err;
1922
1923         snd_ac97_tune_hardware(chip->ac97, ac97_quirks, quirk_override);
1924
1925         if (chip->chip_type != TYPE_VIA686) {
1926                 /* use slot 10/11 */
1927                 snd_ac97_update_bits(chip->ac97, AC97_EXTENDED_STATUS, 0x03 << 4, 0x03 << 4);
1928         }
1929
1930         return 0;
1931 }
1932
1933 #ifdef SUPPORT_JOYSTICK
1934 #define JOYSTICK_ADDR   0x200
1935 static int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1936 {
1937         struct gameport *gp;
1938         struct resource *r;
1939
1940         if (!joystick)
1941                 return -ENODEV;
1942
1943         r = request_region(JOYSTICK_ADDR, 8, "VIA686 gameport");
1944         if (!r) {
1945                 dev_warn(chip->card->dev, "cannot reserve joystick port %#x\n",
1946                        JOYSTICK_ADDR);
1947                 return -EBUSY;
1948         }
1949
1950         chip->gameport = gp = gameport_allocate_port();
1951         if (!gp) {
1952                 dev_err(chip->card->dev,
1953                         "cannot allocate memory for gameport\n");
1954                 release_and_free_resource(r);
1955                 return -ENOMEM;
1956         }
1957
1958         gameport_set_name(gp, "VIA686 Gameport");
1959         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1960         gameport_set_dev_parent(gp, &chip->pci->dev);
1961         gp->io = JOYSTICK_ADDR;
1962         gameport_set_port_data(gp, r);
1963
1964         /* Enable legacy joystick port */
1965         *legacy |= VIA_FUNC_ENABLE_GAME;
1966         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, *legacy);
1967
1968         gameport_register_port(chip->gameport);
1969
1970         return 0;
1971 }
1972
1973 static void snd_via686_free_gameport(struct via82xx *chip)
1974 {
1975         if (chip->gameport) {
1976                 struct resource *r = gameport_get_port_data(chip->gameport);
1977
1978                 gameport_unregister_port(chip->gameport);
1979                 chip->gameport = NULL;
1980                 release_and_free_resource(r);
1981         }
1982 }
1983 #else
1984 static inline int snd_via686_create_gameport(struct via82xx *chip, unsigned char *legacy)
1985 {
1986         return -ENOSYS;
1987 }
1988 static inline void snd_via686_free_gameport(struct via82xx *chip) { }
1989 #endif
1990
1991
1992 /*
1993  *
1994  */
1995
1996 static int snd_via8233_init_misc(struct via82xx *chip)
1997 {
1998         int i, err, caps;
1999         unsigned char val;
2000
2001         caps = chip->chip_type == TYPE_VIA8233A ? 1 : 2;
2002         for (i = 0; i < caps; i++) {
2003                 snd_via8233_capture_source.index = i;
2004                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_capture_source, chip));
2005                 if (err < 0)
2006                         return err;
2007         }
2008         if (ac97_can_spdif(chip->ac97)) {
2009                 err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_dxs3_spdif_control, chip));
2010                 if (err < 0)
2011                         return err;
2012         }
2013         if (chip->chip_type != TYPE_VIA8233A) {
2014                 /* when no h/w PCM volume control is found, use DXS volume control
2015                  * as the PCM vol control
2016                  */
2017                 struct snd_ctl_elem_id sid;
2018                 memset(&sid, 0, sizeof(sid));
2019                 strcpy(sid.name, "PCM Playback Volume");
2020                 sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2021                 if (! snd_ctl_find_id(chip->card, &sid)) {
2022                         dev_info(chip->card->dev,
2023                                  "Using DXS as PCM Playback\n");
2024                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snd_via8233_pcmdxs_volume_control, chip));
2025                         if (err < 0)
2026                                 return err;
2027                 }
2028                 else /* Using DXS when PCM emulation is enabled is really weird */
2029                 {
2030                         for (i = 0; i < 4; ++i) {
2031                                 struct snd_kcontrol *kctl;
2032
2033                                 kctl = snd_ctl_new1(
2034                                         &snd_via8233_dxs_volume_control, chip);
2035                                 if (!kctl)
2036                                         return -ENOMEM;
2037                                 kctl->id.subdevice = i;
2038                                 err = snd_ctl_add(chip->card, kctl);
2039                                 if (err < 0)
2040                                         return err;
2041                                 chip->dxs_controls[i] = kctl;
2042                         }
2043                 }
2044         }
2045         /* select spdif data slot 10/11 */
2046         pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &val);
2047         val = (val & ~VIA8233_SPDIF_SLOT_MASK) | VIA8233_SPDIF_SLOT_1011;
2048         val &= ~VIA8233_SPDIF_DX3; /* SPDIF off as default */
2049         pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, val);
2050
2051         return 0;
2052 }
2053
2054 static int snd_via686_init_misc(struct via82xx *chip)
2055 {
2056         unsigned char legacy, legacy_cfg;
2057         int rev_h = 0;
2058
2059         legacy = chip->old_legacy;
2060         legacy_cfg = chip->old_legacy_cfg;
2061         legacy |= VIA_FUNC_MIDI_IRQMASK;        /* FIXME: correct? (disable MIDI) */
2062         legacy &= ~VIA_FUNC_ENABLE_GAME;        /* disable joystick */
2063         if (chip->revision >= VIA_REV_686_H) {
2064                 rev_h = 1;
2065                 if (mpu_port >= 0x200) {        /* force MIDI */
2066                         mpu_port &= 0xfffc;
2067                         pci_write_config_dword(chip->pci, 0x18, mpu_port | 0x01);
2068 #ifdef CONFIG_PM_SLEEP
2069                         chip->mpu_port_saved = mpu_port;
2070 #endif
2071                 } else {
2072                         mpu_port = pci_resource_start(chip->pci, 2);
2073                 }
2074         } else {
2075                 switch (mpu_port) {     /* force MIDI */
2076                 case 0x300:
2077                 case 0x310:
2078                 case 0x320:
2079                 case 0x330:
2080                         legacy_cfg &= ~(3 << 2);
2081                         legacy_cfg |= (mpu_port & 0x0030) >> 2;
2082                         break;
2083                 default:                        /* no, use BIOS settings */
2084                         if (legacy & VIA_FUNC_ENABLE_MIDI)
2085                                 mpu_port = 0x300 + ((legacy_cfg & 0x000c) << 2);
2086                         break;
2087                 }
2088         }
2089         if (mpu_port >= 0x200 &&
2090             (chip->mpu_res = request_region(mpu_port, 2, "VIA82xx MPU401"))
2091             != NULL) {
2092                 if (rev_h)
2093                         legacy |= VIA_FUNC_MIDI_PNP;    /* enable PCI I/O 2 */
2094                 legacy |= VIA_FUNC_ENABLE_MIDI;
2095         } else {
2096                 if (rev_h)
2097                         legacy &= ~VIA_FUNC_MIDI_PNP;   /* disable PCI I/O 2 */
2098                 legacy &= ~VIA_FUNC_ENABLE_MIDI;
2099                 mpu_port = 0;
2100         }
2101
2102         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2103         pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, legacy_cfg);
2104         if (chip->mpu_res) {
2105                 if (snd_mpu401_uart_new(chip->card, 0, MPU401_HW_VIA686A,
2106                                         mpu_port, MPU401_INFO_INTEGRATED |
2107                                         MPU401_INFO_IRQ_HOOK, -1,
2108                                         &chip->rmidi) < 0) {
2109                         dev_warn(chip->card->dev,
2110                                  "unable to initialize MPU-401 at 0x%lx, skipping\n",
2111                                  mpu_port);
2112                         legacy &= ~VIA_FUNC_ENABLE_MIDI;
2113                 } else {
2114                         legacy &= ~VIA_FUNC_MIDI_IRQMASK;       /* enable MIDI interrupt */
2115                 }
2116                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, legacy);
2117         }
2118
2119         snd_via686_create_gameport(chip, &legacy);
2120
2121 #ifdef CONFIG_PM_SLEEP
2122         chip->legacy_saved = legacy;
2123         chip->legacy_cfg_saved = legacy_cfg;
2124 #endif
2125
2126         return 0;
2127 }
2128
2129
2130 /*
2131  * proc interface
2132  */
2133 static void snd_via82xx_proc_read(struct snd_info_entry *entry,
2134                                   struct snd_info_buffer *buffer)
2135 {
2136         struct via82xx *chip = entry->private_data;
2137         int i;
2138
2139         snd_iprintf(buffer, "%s\n\n", chip->card->longname);
2140         for (i = 0; i < 0xa0; i += 4) {
2141                 snd_iprintf(buffer, "%02x: %08x\n", i, inl(chip->port + i));
2142         }
2143 }
2144
2145 static void snd_via82xx_proc_init(struct via82xx *chip)
2146 {
2147         struct snd_info_entry *entry;
2148
2149         if (! snd_card_proc_new(chip->card, "via82xx", &entry))
2150                 snd_info_set_text_ops(entry, chip, snd_via82xx_proc_read);
2151 }
2152
2153 /*
2154  *
2155  */
2156
2157 static int snd_via82xx_chip_init(struct via82xx *chip)
2158 {
2159         unsigned int val;
2160         unsigned long end_time;
2161         unsigned char pval;
2162
2163 #if 0 /* broken on K7M? */
2164         if (chip->chip_type == TYPE_VIA686)
2165                 /* disable all legacy ports */
2166                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, 0);
2167 #endif
2168         pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2169         if (! (pval & VIA_ACLINK_C00_READY)) { /* codec not ready? */
2170                 /* deassert ACLink reset, force SYNC */
2171                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2172                                       VIA_ACLINK_CTRL_ENABLE |
2173                                       VIA_ACLINK_CTRL_RESET |
2174                                       VIA_ACLINK_CTRL_SYNC);
2175                 udelay(100);
2176 #if 1 /* FIXME: should we do full reset here for all chip models? */
2177                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, 0x00);
2178                 udelay(100);
2179 #else
2180                 /* deassert ACLink reset, force SYNC (warm AC'97 reset) */
2181                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL,
2182                                       VIA_ACLINK_CTRL_RESET|VIA_ACLINK_CTRL_SYNC);
2183                 udelay(2);
2184 #endif
2185                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2186                 /* note - FM data out has trouble with non VRA codecs !! */
2187                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2188                 udelay(100);
2189         }
2190
2191         /* Make sure VRA is enabled, in case we didn't do a
2192          * complete codec reset, above */
2193         pci_read_config_byte(chip->pci, VIA_ACLINK_CTRL, &pval);
2194         if ((pval & VIA_ACLINK_CTRL_INIT) != VIA_ACLINK_CTRL_INIT) {
2195                 /* ACLink on, deassert ACLink reset, VSR, SGD data out */
2196                 /* note - FM data out has trouble with non VRA codecs !! */
2197                 pci_write_config_byte(chip->pci, VIA_ACLINK_CTRL, VIA_ACLINK_CTRL_INIT);
2198                 udelay(100);
2199         }
2200
2201         /* wait until codec ready */
2202         end_time = jiffies + msecs_to_jiffies(750);
2203         do {
2204                 pci_read_config_byte(chip->pci, VIA_ACLINK_STAT, &pval);
2205                 if (pval & VIA_ACLINK_C00_READY) /* primary codec ready */
2206                         break;
2207                 schedule_timeout_uninterruptible(1);
2208         } while (time_before(jiffies, end_time));
2209
2210         if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_BUSY)
2211                 dev_err(chip->card->dev,
2212                         "AC'97 codec is not ready [0x%x]\n", val);
2213
2214 #if 0 /* FIXME: we don't support the second codec yet so skip the detection now.. */
2215         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2216                                  VIA_REG_AC97_SECONDARY_VALID |
2217                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2218         end_time = jiffies + msecs_to_jiffies(750);
2219         snd_via82xx_codec_xwrite(chip, VIA_REG_AC97_READ |
2220                                  VIA_REG_AC97_SECONDARY_VALID |
2221                                  (VIA_REG_AC97_CODEC_ID_SECONDARY << VIA_REG_AC97_CODEC_ID_SHIFT));
2222         do {
2223                 if ((val = snd_via82xx_codec_xread(chip)) & VIA_REG_AC97_SECONDARY_VALID) {
2224                         chip->ac97_secondary = 1;
2225                         goto __ac97_ok2;
2226                 }
2227                 schedule_timeout_uninterruptible(1);
2228         } while (time_before(jiffies, end_time));
2229         /* This is ok, the most of motherboards have only one codec */
2230
2231       __ac97_ok2:
2232 #endif
2233
2234         if (chip->chip_type == TYPE_VIA686) {
2235                 /* route FM trap to IRQ, disable FM trap */
2236                 pci_write_config_byte(chip->pci, VIA_FM_NMI_CTRL, 0);
2237                 /* disable all GPI interrupts */
2238                 outl(0, VIAREG(chip, GPI_INTR));
2239         }
2240
2241         if (chip->chip_type != TYPE_VIA686) {
2242                 /* Workaround for Award BIOS bug:
2243                  * DXS channels don't work properly with VRA if MC97 is disabled.
2244                  */
2245                 struct pci_dev *pci;
2246                 pci = pci_get_device(0x1106, 0x3068, NULL); /* MC97 */
2247                 if (pci) {
2248                         unsigned char data;
2249                         pci_read_config_byte(pci, 0x44, &data);
2250                         pci_write_config_byte(pci, 0x44, data | 0x40);
2251                         pci_dev_put(pci);
2252                 }
2253         }
2254
2255         if (chip->chip_type != TYPE_VIA8233A) {
2256                 int i, idx;
2257                 for (idx = 0; idx < 4; idx++) {
2258                         unsigned long port = chip->port + 0x10 * idx;
2259                         for (i = 0; i < 2; i++) {
2260                                 chip->playback_volume[idx][i]=chip->playback_volume_c[i];
2261                                 outb(chip->playback_volume_c[i],
2262                                      port + VIA_REG_OFS_PLAYBACK_VOLUME_L + i);
2263                         }
2264                 }
2265         }
2266
2267         return 0;
2268 }
2269
2270 #ifdef CONFIG_PM_SLEEP
2271 /*
2272  * power management
2273  */
2274 static int snd_via82xx_suspend(struct device *dev)
2275 {
2276         struct snd_card *card = dev_get_drvdata(dev);
2277         struct via82xx *chip = card->private_data;
2278         int i;
2279
2280         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
2281         for (i = 0; i < 2; i++)
2282                 snd_pcm_suspend_all(chip->pcms[i]);
2283         for (i = 0; i < chip->num_devs; i++)
2284                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2285         synchronize_irq(chip->irq);
2286         snd_ac97_suspend(chip->ac97);
2287
2288         /* save misc values */
2289         if (chip->chip_type != TYPE_VIA686) {
2290                 pci_read_config_byte(chip->pci, VIA8233_SPDIF_CTRL, &chip->spdif_ctrl_saved);
2291                 chip->capture_src_saved[0] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL);
2292                 chip->capture_src_saved[1] = inb(chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2293         }
2294
2295         return 0;
2296 }
2297
2298 static int snd_via82xx_resume(struct device *dev)
2299 {
2300         struct snd_card *card = dev_get_drvdata(dev);
2301         struct via82xx *chip = card->private_data;
2302         int i;
2303
2304         snd_via82xx_chip_init(chip);
2305
2306         if (chip->chip_type == TYPE_VIA686) {
2307                 if (chip->mpu_port_saved)
2308                         pci_write_config_dword(chip->pci, 0x18, chip->mpu_port_saved | 0x01);
2309                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->legacy_saved);
2310                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->legacy_cfg_saved);
2311         } else {
2312                 pci_write_config_byte(chip->pci, VIA8233_SPDIF_CTRL, chip->spdif_ctrl_saved);
2313                 outb(chip->capture_src_saved[0], chip->port + VIA_REG_CAPTURE_CHANNEL);
2314                 outb(chip->capture_src_saved[1], chip->port + VIA_REG_CAPTURE_CHANNEL + 0x10);
2315         }
2316
2317         snd_ac97_resume(chip->ac97);
2318
2319         for (i = 0; i < chip->num_devs; i++)
2320                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2321
2322         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2323         return 0;
2324 }
2325
2326 static SIMPLE_DEV_PM_OPS(snd_via82xx_pm, snd_via82xx_suspend, snd_via82xx_resume);
2327 #define SND_VIA82XX_PM_OPS      &snd_via82xx_pm
2328 #else
2329 #define SND_VIA82XX_PM_OPS      NULL
2330 #endif /* CONFIG_PM_SLEEP */
2331
2332 static int snd_via82xx_free(struct via82xx *chip)
2333 {
2334         unsigned int i;
2335
2336         if (chip->irq < 0)
2337                 goto __end_hw;
2338         /* disable interrupts */
2339         for (i = 0; i < chip->num_devs; i++)
2340                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2341
2342         if (chip->irq >= 0)
2343                 free_irq(chip->irq, chip);
2344  __end_hw:
2345         release_and_free_resource(chip->mpu_res);
2346         pci_release_regions(chip->pci);
2347
2348         if (chip->chip_type == TYPE_VIA686) {
2349                 snd_via686_free_gameport(chip);
2350                 pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE, chip->old_legacy);
2351                 pci_write_config_byte(chip->pci, VIA_PNP_CONTROL, chip->old_legacy_cfg);
2352         }
2353         pci_disable_device(chip->pci);
2354         kfree(chip);
2355         return 0;
2356 }
2357
2358 static int snd_via82xx_dev_free(struct snd_device *device)
2359 {
2360         struct via82xx *chip = device->device_data;
2361         return snd_via82xx_free(chip);
2362 }
2363
2364 static int snd_via82xx_create(struct snd_card *card,
2365                               struct pci_dev *pci,
2366                               int chip_type,
2367                               int revision,
2368                               unsigned int ac97_clock,
2369                               struct via82xx **r_via)
2370 {
2371         struct via82xx *chip;
2372         int err;
2373         static struct snd_device_ops ops = {
2374                 .dev_free =     snd_via82xx_dev_free,
2375         };
2376
2377         if ((err = pci_enable_device(pci)) < 0)
2378                 return err;
2379
2380         if ((chip = kzalloc(sizeof(*chip), GFP_KERNEL)) == NULL) {
2381                 pci_disable_device(pci);
2382                 return -ENOMEM;
2383         }
2384
2385         chip->chip_type = chip_type;
2386         chip->revision = revision;
2387
2388         spin_lock_init(&chip->reg_lock);
2389         spin_lock_init(&chip->rates[0].lock);
2390         spin_lock_init(&chip->rates[1].lock);
2391         chip->card = card;
2392         chip->pci = pci;
2393         chip->irq = -1;
2394
2395         pci_read_config_byte(pci, VIA_FUNC_ENABLE, &chip->old_legacy);
2396         pci_read_config_byte(pci, VIA_PNP_CONTROL, &chip->old_legacy_cfg);
2397         pci_write_config_byte(chip->pci, VIA_FUNC_ENABLE,
2398                               chip->old_legacy & ~(VIA_FUNC_ENABLE_SB|VIA_FUNC_ENABLE_FM));
2399
2400         if ((err = pci_request_regions(pci, card->driver)) < 0) {
2401                 kfree(chip);
2402                 pci_disable_device(pci);
2403                 return err;
2404         }
2405         chip->port = pci_resource_start(pci, 0);
2406         if (request_irq(pci->irq,
2407                         chip_type == TYPE_VIA8233 ?
2408                         snd_via8233_interrupt : snd_via686_interrupt,
2409                         IRQF_SHARED,
2410                         KBUILD_MODNAME, chip)) {
2411                 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
2412                 snd_via82xx_free(chip);
2413                 return -EBUSY;
2414         }
2415         chip->irq = pci->irq;
2416         if (ac97_clock >= 8000 && ac97_clock <= 48000)
2417                 chip->ac97_clock = ac97_clock;
2418         synchronize_irq(chip->irq);
2419
2420         if ((err = snd_via82xx_chip_init(chip)) < 0) {
2421                 snd_via82xx_free(chip);
2422                 return err;
2423         }
2424
2425         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
2426                 snd_via82xx_free(chip);
2427                 return err;
2428         }
2429
2430         /* The 8233 ac97 controller does not implement the master bit
2431          * in the pci command register. IMHO this is a violation of the PCI spec.
2432          * We call pci_set_master here because it does not hurt. */
2433         pci_set_master(pci);
2434
2435         *r_via = chip;
2436         return 0;
2437 }
2438
2439 struct via823x_info {
2440         int revision;
2441         char *name;
2442         int type;
2443 };
2444 static struct via823x_info via823x_cards[] = {
2445         { VIA_REV_PRE_8233, "VIA 8233-Pre", TYPE_VIA8233 },
2446         { VIA_REV_8233C, "VIA 8233C", TYPE_VIA8233 },
2447         { VIA_REV_8233, "VIA 8233", TYPE_VIA8233 },
2448         { VIA_REV_8233A, "VIA 8233A", TYPE_VIA8233A },
2449         { VIA_REV_8235, "VIA 8235", TYPE_VIA8233 },
2450         { VIA_REV_8237, "VIA 8237", TYPE_VIA8233 },
2451         { VIA_REV_8251, "VIA 8251", TYPE_VIA8233 },
2452 };
2453
2454 /*
2455  * auto detection of DXS channel supports.
2456  */
2457
2458 static struct snd_pci_quirk dxs_whitelist[] = {
2459         SND_PCI_QUIRK(0x1005, 0x4710, "Avance Logic Mobo", VIA_DXS_ENABLE),
2460         SND_PCI_QUIRK(0x1019, 0x0996, "ESC Mobo", VIA_DXS_48K),
2461         SND_PCI_QUIRK(0x1019, 0x0a81, "ECS K7VTA3 v8.0", VIA_DXS_NO_VRA),
2462         SND_PCI_QUIRK(0x1019, 0x0a85, "ECS L7VMM2", VIA_DXS_NO_VRA),
2463         SND_PCI_QUIRK_VENDOR(0x1019, "ESC K8", VIA_DXS_SRC),
2464         SND_PCI_QUIRK(0x1019, 0xaa01, "ESC K8T890-A", VIA_DXS_SRC),
2465         SND_PCI_QUIRK(0x1025, 0x0033, "Acer Inspire 1353LM", VIA_DXS_NO_VRA),
2466         SND_PCI_QUIRK(0x1025, 0x0046, "Acer Aspire 1524 WLMi", VIA_DXS_SRC),
2467         SND_PCI_QUIRK_VENDOR(0x1043, "ASUS A7/A8", VIA_DXS_NO_VRA),
2468         SND_PCI_QUIRK_VENDOR(0x1071, "Diverse Notebook", VIA_DXS_NO_VRA),
2469         SND_PCI_QUIRK(0x10cf, 0x118e, "FSC Laptop", VIA_DXS_ENABLE),
2470         SND_PCI_QUIRK_VENDOR(0x1106, "ASRock", VIA_DXS_SRC),
2471         SND_PCI_QUIRK(0x1297, 0xa231, "Shuttle AK31v2", VIA_DXS_SRC),
2472         SND_PCI_QUIRK(0x1297, 0xa232, "Shuttle", VIA_DXS_SRC),
2473         SND_PCI_QUIRK(0x1297, 0xc160, "Shuttle Sk41G", VIA_DXS_SRC),
2474         SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte GA-7VAXP", VIA_DXS_ENABLE),
2475         SND_PCI_QUIRK(0x1462, 0x3800, "MSI KT266", VIA_DXS_ENABLE),
2476         SND_PCI_QUIRK(0x1462, 0x7120, "MSI KT4V", VIA_DXS_ENABLE),
2477         SND_PCI_QUIRK(0x1462, 0x7142, "MSI K8MM-V", VIA_DXS_ENABLE),
2478         SND_PCI_QUIRK_VENDOR(0x1462, "MSI Mobo", VIA_DXS_SRC),
2479         SND_PCI_QUIRK(0x147b, 0x1401, "ABIT KD7(-RAID)", VIA_DXS_ENABLE),
2480         SND_PCI_QUIRK(0x147b, 0x1411, "ABIT VA-20", VIA_DXS_ENABLE),
2481         SND_PCI_QUIRK(0x147b, 0x1413, "ABIT KV8 Pro", VIA_DXS_ENABLE),
2482         SND_PCI_QUIRK(0x147b, 0x1415, "ABIT AV8", VIA_DXS_NO_VRA),
2483         SND_PCI_QUIRK(0x14ff, 0x0403, "Twinhead mobo", VIA_DXS_ENABLE),
2484         SND_PCI_QUIRK(0x14ff, 0x0408, "Twinhead laptop", VIA_DXS_SRC),
2485         SND_PCI_QUIRK(0x1558, 0x4701, "Clevo D470", VIA_DXS_SRC),
2486         SND_PCI_QUIRK(0x1584, 0x8120, "Diverse Laptop", VIA_DXS_ENABLE),
2487         SND_PCI_QUIRK(0x1584, 0x8123, "Targa/Uniwill", VIA_DXS_NO_VRA),
2488         SND_PCI_QUIRK(0x161f, 0x202b, "Amira Notebook", VIA_DXS_NO_VRA),
2489         SND_PCI_QUIRK(0x161f, 0x2032, "m680x machines", VIA_DXS_48K),
2490         SND_PCI_QUIRK(0x1631, 0xe004, "PB EasyNote 3174", VIA_DXS_ENABLE),
2491         SND_PCI_QUIRK(0x1695, 0x3005, "EPoX EP-8K9A", VIA_DXS_ENABLE),
2492         SND_PCI_QUIRK_VENDOR(0x1695, "EPoX mobo", VIA_DXS_SRC),
2493         SND_PCI_QUIRK_VENDOR(0x16f3, "Jetway K8", VIA_DXS_SRC),
2494         SND_PCI_QUIRK_VENDOR(0x1734, "FSC Laptop", VIA_DXS_SRC),
2495         SND_PCI_QUIRK(0x1849, 0x3059, "ASRock K7VM2", VIA_DXS_NO_VRA),
2496         SND_PCI_QUIRK_VENDOR(0x1849, "ASRock mobo", VIA_DXS_SRC),
2497         SND_PCI_QUIRK(0x1919, 0x200a, "Soltek SL-K8",  VIA_DXS_NO_VRA),
2498         SND_PCI_QUIRK(0x4005, 0x4710, "MSI K7T266", VIA_DXS_SRC),
2499         { } /* terminator */
2500 };
2501
2502 static int check_dxs_list(struct pci_dev *pci, int revision)
2503 {
2504         const struct snd_pci_quirk *w;
2505
2506         w = snd_pci_quirk_lookup(pci, dxs_whitelist);
2507         if (w) {
2508                 dev_dbg(&pci->dev, "DXS white list for %s found\n",
2509                             snd_pci_quirk_name(w));
2510                 return w->value;
2511         }
2512
2513         /* for newer revision, default to DXS_SRC */
2514         if (revision >= VIA_REV_8235)
2515                 return VIA_DXS_SRC;
2516
2517         /*
2518          * not detected, try 48k rate only to be sure.
2519          */
2520         dev_info(&pci->dev, "Assuming DXS channels with 48k fixed sample rate.\n");
2521         dev_info(&pci->dev, "         Please try dxs_support=5 option\n");
2522         dev_info(&pci->dev, "         and report if it works on your machine.\n");
2523         dev_info(&pci->dev, "         For more details, read ALSA-Configuration.txt.\n");
2524         return VIA_DXS_48K;
2525 };
2526
2527 static int snd_via82xx_probe(struct pci_dev *pci,
2528                              const struct pci_device_id *pci_id)
2529 {
2530         struct snd_card *card;
2531         struct via82xx *chip;
2532         int chip_type = 0, card_type;
2533         unsigned int i;
2534         int err;
2535
2536         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2537         if (err < 0)
2538                 return err;
2539
2540         card_type = pci_id->driver_data;
2541         switch (card_type) {
2542         case TYPE_CARD_VIA686:
2543                 strcpy(card->driver, "VIA686A");
2544                 sprintf(card->shortname, "VIA 82C686A/B rev%x", pci->revision);
2545                 chip_type = TYPE_VIA686;
2546                 break;
2547         case TYPE_CARD_VIA8233:
2548                 chip_type = TYPE_VIA8233;
2549                 sprintf(card->shortname, "VIA 823x rev%x", pci->revision);
2550                 for (i = 0; i < ARRAY_SIZE(via823x_cards); i++) {
2551                         if (pci->revision == via823x_cards[i].revision) {
2552                                 chip_type = via823x_cards[i].type;
2553                                 strcpy(card->shortname, via823x_cards[i].name);
2554                                 break;
2555                         }
2556                 }
2557                 if (chip_type != TYPE_VIA8233A) {
2558                         if (dxs_support == VIA_DXS_AUTO)
2559                                 dxs_support = check_dxs_list(pci, pci->revision);
2560                         /* force to use VIA8233 or 8233A model according to
2561                          * dxs_support module option
2562                          */
2563                         if (dxs_support == VIA_DXS_DISABLE)
2564                                 chip_type = TYPE_VIA8233A;
2565                         else
2566                                 chip_type = TYPE_VIA8233;
2567                 }
2568                 if (chip_type == TYPE_VIA8233A)
2569                         strcpy(card->driver, "VIA8233A");
2570                 else if (pci->revision >= VIA_REV_8237)
2571                         strcpy(card->driver, "VIA8237"); /* no slog assignment */
2572                 else
2573                         strcpy(card->driver, "VIA8233");
2574                 break;
2575         default:
2576                 dev_err(card->dev, "invalid card type %d\n", card_type);
2577                 err = -EINVAL;
2578                 goto __error;
2579         }
2580
2581         if ((err = snd_via82xx_create(card, pci, chip_type, pci->revision,
2582                                       ac97_clock, &chip)) < 0)
2583                 goto __error;
2584         card->private_data = chip;
2585         if ((err = snd_via82xx_mixer_new(chip, ac97_quirk)) < 0)
2586                 goto __error;
2587
2588         if (chip_type == TYPE_VIA686) {
2589                 if ((err = snd_via686_pcm_new(chip)) < 0 ||
2590                     (err = snd_via686_init_misc(chip)) < 0)
2591                         goto __error;
2592         } else {
2593                 if (chip_type == TYPE_VIA8233A) {
2594                         if ((err = snd_via8233a_pcm_new(chip)) < 0)
2595                                 goto __error;
2596                         // chip->dxs_fixed = 1; /* FIXME: use 48k for DXS #3? */
2597                 } else {
2598                         if ((err = snd_via8233_pcm_new(chip)) < 0)
2599                                 goto __error;
2600                         if (dxs_support == VIA_DXS_48K)
2601                                 chip->dxs_fixed = 1;
2602                         else if (dxs_support == VIA_DXS_NO_VRA)
2603                                 chip->no_vra = 1;
2604                         else if (dxs_support == VIA_DXS_SRC) {
2605                                 chip->no_vra = 1;
2606                                 chip->dxs_src = 1;
2607                         }
2608                 }
2609                 if ((err = snd_via8233_init_misc(chip)) < 0)
2610                         goto __error;
2611         }
2612
2613         /* disable interrupts */
2614         for (i = 0; i < chip->num_devs; i++)
2615                 snd_via82xx_channel_reset(chip, &chip->devs[i]);
2616
2617         snprintf(card->longname, sizeof(card->longname),
2618                  "%s with %s at %#lx, irq %d", card->shortname,
2619                  snd_ac97_get_short_name(chip->ac97), chip->port, chip->irq);
2620
2621         snd_via82xx_proc_init(chip);
2622
2623         if ((err = snd_card_register(card)) < 0) {
2624                 snd_card_free(card);
2625                 return err;
2626         }
2627         pci_set_drvdata(pci, card);
2628         return 0;
2629
2630  __error:
2631         snd_card_free(card);
2632         return err;
2633 }
2634
2635 static void snd_via82xx_remove(struct pci_dev *pci)
2636 {
2637         snd_card_free(pci_get_drvdata(pci));
2638 }
2639
2640 static struct pci_driver via82xx_driver = {
2641         .name = KBUILD_MODNAME,
2642         .id_table = snd_via82xx_ids,
2643         .probe = snd_via82xx_probe,
2644         .remove = snd_via82xx_remove,
2645         .driver = {
2646                 .pm = SND_VIA82XX_PM_OPS,
2647         },
2648 };
2649
2650 module_pci_driver(via82xx_driver);