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