SAFE public projects git trees. - safe/jmp/linux-2.6/blob - sound/pci/ac97/ac97_codec.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   3  *  Universal interface for Audio Codec '97
   4  *
   5  *  For more details look to AC '97 component specification revision 2.2
   6  *  by Intel Corporation (http://developer.intel.com).
   7  *
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  *
  23  */
  24
  25 #include <linux/delay.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <linux/pci.h>
  29 #include <linux/moduleparam.h>
  30 #include <linux/mutex.h>
  31 #include <sound/core.h>
  32 #include <sound/pcm.h>
  33 #include <sound/tlv.h>
  34 #include <sound/ac97_codec.h>
  35 #include <sound/asoundef.h>
  36 #include <sound/initval.h>
  37 #include "ac97_id.h"
  38
  39 #include "ac97_patch.c"
  40
  41 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  42 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
  43 MODULE_LICENSE("GPL");
  44
  45 static int enable_loopback;
  46
  47 module_param(enable_loopback, bool, 0444);
  48 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
  49
  50 #ifdef CONFIG_SND_AC97_POWER_SAVE
  51 static int power_save = CONFIG_SND_AC97_POWER_SAVE_DEFAULT;
  52 module_param(power_save, int, 0644);
  53 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
  54                  "(in second, 0 = disable).");
  55 #endif
  56 /*
  57
  58  */
  59
  60 struct ac97_codec_id {
  61         unsigned int id;
  62         unsigned int mask;
  63         const char *name;
  64         int (*patch)(struct snd_ac97 *ac97);
  65         int (*mpatch)(struct snd_ac97 *ac97);
  66         unsigned int flags;
  67 };
  68
  69 static const struct ac97_codec_id snd_ac97_codec_id_vendors[] = {
  70 { 0x41445300, 0xffffff00, "Analog Devices",     NULL,   NULL },
  71 { 0x414b4d00, 0xffffff00, "Asahi Kasei",        NULL,   NULL },
  72 { 0x414c4300, 0xffffff00, "Realtek",            NULL,   NULL },
  73 { 0x414c4700, 0xffffff00, "Realtek",            NULL,   NULL },
  74 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL,  NULL },
  75 { 0x43525900, 0xffffff00, "Cirrus Logic",       NULL,   NULL },
  76 { 0x43585400, 0xffffff00, "Conexant",           NULL,   NULL },
  77 { 0x44543000, 0xffffff00, "Diamond Technology", NULL,   NULL },
  78 { 0x454d4300, 0xffffff00, "eMicro",             NULL,   NULL },
  79 { 0x45838300, 0xffffff00, "ESS Technology",     NULL,   NULL },
  80 { 0x48525300, 0xffffff00, "Intersil",           NULL,   NULL },
  81 { 0x49434500, 0xffffff00, "ICEnsemble",         NULL,   NULL },
  82 { 0x49544500, 0xffffff00, "ITE Tech.Inc",       NULL,   NULL },
  83 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
  84 { 0x50534300, 0xffffff00, "Philips",            NULL,   NULL },
  85 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL,   NULL },
  86 { 0x53544d00, 0xffffff00, "STMicroelectronics", NULL,   NULL },
  87 { 0x54524100, 0xffffff00, "TriTech",            NULL,   NULL },
  88 { 0x54584e00, 0xffffff00, "Texas Instruments",  NULL,   NULL },
  89 { 0x56494100, 0xffffff00, "VIA Technologies",   NULL,   NULL },
  90 { 0x57454300, 0xffffff00, "Winbond",            NULL,   NULL },
  91 { 0x574d4c00, 0xffffff00, "Wolfson",            NULL,   NULL },
  92 { 0x594d4800, 0xffffff00, "Yamaha",             NULL,   NULL },
  93 { 0x83847600, 0xffffff00, "SigmaTel",           NULL,   NULL },
  94 { 0,          0,          NULL,                 NULL,   NULL }
  95 };
  96
  97 static const struct ac97_codec_id snd_ac97_codec_ids[] = {
  98 { 0x41445303, 0xffffffff, "AD1819",             patch_ad1819,   NULL },
  99 { 0x41445340, 0xffffffff, "AD1881",             patch_ad1881,   NULL },
 100 { 0x41445348, 0xffffffff, "AD1881A",            patch_ad1881,   NULL },
 101 { 0x41445360, 0xffffffff, "AD1885",             patch_ad1885,   NULL },
 102 { 0x41445361, 0xffffffff, "AD1886",             patch_ad1886,   NULL },
 103 { 0x41445362, 0xffffffff, "AD1887",             patch_ad1881,   NULL },
 104 { 0x41445363, 0xffffffff, "AD1886A",            patch_ad1881,   NULL },
 105 { 0x41445368, 0xffffffff, "AD1888",             patch_ad1888,   NULL },
 106 { 0x41445370, 0xffffffff, "AD1980",             patch_ad1980,   NULL },
 107 { 0x41445372, 0xffffffff, "AD1981A",            patch_ad1981a,  NULL },
 108 { 0x41445374, 0xffffffff, "AD1981B",            patch_ad1981b,  NULL },
 109 { 0x41445375, 0xffffffff, "AD1985",             patch_ad1985,   NULL },
 110 { 0x41445378, 0xffffffff, "AD1986",             patch_ad1986,   NULL },
 111 { 0x414b4d00, 0xffffffff, "AK4540",             NULL,           NULL },
 112 { 0x414b4d01, 0xffffffff, "AK4542",             NULL,           NULL },
 113 { 0x414b4d02, 0xffffffff, "AK4543",             NULL,           NULL },
 114 { 0x414b4d06, 0xffffffff, "AK4544A",            NULL,           NULL },
 115 { 0x414b4d07, 0xffffffff, "AK4545",             NULL,           NULL },
 116 { 0x414c4300, 0xffffff00, "ALC100,100P",        NULL,           NULL },
 117 { 0x414c4710, 0xfffffff0, "ALC200,200P",        NULL,           NULL },
 118 { 0x414c4721, 0xffffffff, "ALC650D",            NULL,   NULL }, /* already patched */
 119 { 0x414c4722, 0xffffffff, "ALC650E",            NULL,   NULL }, /* already patched */
 120 { 0x414c4723, 0xffffffff, "ALC650F",            NULL,   NULL }, /* already patched */
 121 { 0x414c4720, 0xfffffff0, "ALC650",             patch_alc650,   NULL },
 122 { 0x414c4730, 0xffffffff, "ALC101",             NULL,           NULL },
 123 { 0x414c4740, 0xfffffff0, "ALC202",             NULL,           NULL },
 124 { 0x414c4750, 0xfffffff0, "ALC250",             NULL,           NULL },
 125 { 0x414c4760, 0xfffffff0, "ALC655",             patch_alc655,   NULL },
 126 { 0x414c4770, 0xfffffff0, "ALC203",             patch_alc203,   NULL },
 127 { 0x414c4781, 0xffffffff, "ALC658D",            NULL,   NULL }, /* already patched */
 128 { 0x414c4780, 0xfffffff0, "ALC658",             patch_alc655,   NULL },
 129 { 0x414c4790, 0xfffffff0, "ALC850",             patch_alc850,   NULL },
 130 { 0x434d4941, 0xffffffff, "CMI9738",            patch_cm9738,   NULL },
 131 { 0x434d4961, 0xffffffff, "CMI9739",            patch_cm9739,   NULL },
 132 { 0x434d4969, 0xffffffff, "CMI9780",            patch_cm9780,   NULL },
 133 { 0x434d4978, 0xffffffff, "CMI9761A",           patch_cm9761,   NULL },
 134 { 0x434d4982, 0xffffffff, "CMI9761B",           patch_cm9761,   NULL },
 135 { 0x434d4983, 0xffffffff, "CMI9761A+",          patch_cm9761,   NULL },
 136 { 0x43525900, 0xfffffff8, "CS4297",             NULL,           NULL },
 137 { 0x43525910, 0xfffffff8, "CS4297A",            patch_cirrus_spdif,     NULL },
 138 { 0x43525920, 0xfffffff8, "CS4298",             patch_cirrus_spdif,             NULL },
 139 { 0x43525928, 0xfffffff8, "CS4294",             NULL,           NULL },
 140 { 0x43525930, 0xfffffff8, "CS4299",             patch_cirrus_cs4299,    NULL },
 141 { 0x43525948, 0xfffffff8, "CS4201",             NULL,           NULL },
 142 { 0x43525958, 0xfffffff8, "CS4205",             patch_cirrus_spdif,     NULL },
 143 { 0x43525960, 0xfffffff8, "CS4291",             NULL,           NULL },
 144 { 0x43525970, 0xfffffff8, "CS4202",             NULL,           NULL },
 145 { 0x43585421, 0xffffffff, "HSD11246",           NULL,           NULL }, // SmartMC II
 146 { 0x43585428, 0xfffffff8, "Cx20468",            patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
 147 { 0x43585430, 0xffffffff, "Cx20468-31",         patch_conexant, NULL },
 148 { 0x43585431, 0xffffffff, "Cx20551",           patch_cx20551,  NULL },
 149 { 0x44543031, 0xfffffff0, "DT0398",             NULL,           NULL },
 150 { 0x454d4328, 0xffffffff, "EM28028",            NULL,           NULL },  // same as TR28028?
 151 { 0x45838308, 0xffffffff, "ESS1988",            NULL,           NULL },
 152 { 0x48525300, 0xffffff00, "HMP9701",            NULL,           NULL },
 153 { 0x49434501, 0xffffffff, "ICE1230",            NULL,           NULL },
 154 { 0x49434511, 0xffffffff, "ICE1232",            NULL,           NULL }, // alias VIA VT1611A?
 155 { 0x49434514, 0xffffffff, "ICE1232A",           NULL,           NULL },
 156 { 0x49434551, 0xffffffff, "VT1616",             patch_vt1616,   NULL },
 157 { 0x49434552, 0xffffffff, "VT1616i",            patch_vt1616,   NULL }, // VT1616 compatible (chipset integrated)
 158 { 0x49544520, 0xffffffff, "IT2226E",            NULL,           NULL },
 159 { 0x49544561, 0xffffffff, "IT2646E",            patch_it2646,   NULL },
 160 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL,           NULL }, // only guess --jk
 161 { 0x4e534331, 0xffffffff, "LM4549",             NULL,           NULL },
 162 { 0x4e534350, 0xffffffff, "LM4550",             patch_lm4550,   NULL }, // volume wrap fix
 163 { 0x50534304, 0xffffffff, "UCB1400",            patch_ucb1400,  NULL },
 164 { 0x53494c20, 0xffffffe0, "Si3036,8",           mpatch_si3036,  mpatch_si3036, AC97_MODEM_PATCH },
 165 { 0x53544d02, 0xffffffff, "ST7597",             NULL,           NULL },
 166 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
 167 { 0x54524103, 0xffffffff, "TR28023",            NULL,           NULL },
 168 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
 169 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
 170 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 171 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
 172 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
 173 { 0x56494170, 0xffffffff, "VIA1617A",           patch_vt1617a,  NULL }, // modified VT1616 with S/PDIF
 174 { 0x56494182, 0xffffffff, "VIA1618",            patch_vt1618,   NULL },
 175 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
 176 { 0x574d4c00, 0xffffffff, "WM9701,WM9701A",     NULL,           NULL },
 177 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
 178 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
 179 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
 180 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
 181 { 0x574d4C12, 0xffffffff, "WM9711,WM9712,WM9715",       patch_wolfson11, NULL},
 182 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
 183 { 0x594d4800, 0xffffffff, "YMF743",             patch_yamaha_ymf743,    NULL },
 184 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
 185 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
 186 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
 187 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
 188 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
 189 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
 190 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
 191 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
 192 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
 193 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
 194 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
 195 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
 196 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
 197 { 0,          0,          NULL,                 NULL,           NULL }
 198 };
 199
 200
 201 static void update_power_regs(struct snd_ac97 *ac97);
 202 #ifdef CONFIG_SND_AC97_POWER_SAVE
 203 #define ac97_is_power_save_mode(ac97) \
 204         ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
 205 #else
 206 #define ac97_is_power_save_mode(ac97) 0
 207 #endif
 208
 209
 210 /*
 211  *  I/O routines
 212  */
 213
 214 static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
 215 {
 216         /* filter some registers for buggy codecs */
 217         switch (ac97->id) {
 218         case AC97_ID_ST_AC97_ID4:
 219                 if (reg == 0x08)
 220                         return 0;
 221                 /* fall through */
 222         case AC97_ID_ST7597:
 223                 if (reg == 0x22 || reg == 0x7a)
 224                         return 1;
 225                 /* fall through */
 226         case AC97_ID_AK4540:
 227         case AC97_ID_AK4542:
 228                 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
 229                         return 1;
 230                 return 0;
 231         case AC97_ID_AD1819:    /* AD1819 */
 232         case AC97_ID_AD1881:    /* AD1881 */
 233         case AC97_ID_AD1881A:   /* AD1881A */
 234                 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
 235                         return 0;
 236                 return 1;
 237         case AC97_ID_AD1885:    /* AD1885 */
 238         case AC97_ID_AD1886:    /* AD1886 */
 239         case AC97_ID_AD1886A:   /* AD1886A - !!verify!! --jk */
 240         case AC97_ID_AD1887:    /* AD1887 - !!verify!! --jk */
 241                 if (reg == 0x5a)
 242                         return 1;
 243                 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
 244                         return 0;
 245                 return 1;
 246         case AC97_ID_STAC9700:
 247         case AC97_ID_STAC9704:
 248         case AC97_ID_STAC9705:
 249         case AC97_ID_STAC9708:
 250         case AC97_ID_STAC9721:
 251         case AC97_ID_STAC9744:
 252         case AC97_ID_STAC9756:
 253                 if (reg <= 0x3a || reg >= 0x5a)
 254                         return 1;
 255                 return 0;
 256         }
 257         return 1;
 258 }
 259
 260 /**
 261  * snd_ac97_write - write a value on the given register
 262  * @ac97: the ac97 instance
 263  * @reg: the register to change
 264  * @value: the value to set
 265  *
 266  * Writes a value on the given register.  This will invoke the write
 267  * callback directly after the register check.
 268  * This function doesn't change the register cache unlike
 269  * #snd_ca97_write_cache(), so use this only when you don't want to
 270  * reflect the change to the suspend/resume state.
 271  */
 272 void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 273 {
 274         if (!snd_ac97_valid_reg(ac97, reg))
 275                 return;
 276         if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
 277                 /* Fix H/W bug of ALC100/100P */
 278                 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
 279                         ac97->bus->ops->write(ac97, AC97_RESET, 0);     /* reset audio codec */
 280         }
 281         ac97->bus->ops->write(ac97, reg, value);
 282 }
 283
 284 EXPORT_SYMBOL(snd_ac97_write);
 285
 286 /**
 287  * snd_ac97_read - read a value from the given register
 288  *
 289  * @ac97: the ac97 instance
 290  * @reg: the register to read
 291  *
 292  * Reads a value from the given register.  This will invoke the read
 293  * callback directly after the register check.
 294  *
 295  * Returns the read value.
 296  */
 297 unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 298 {
 299         if (!snd_ac97_valid_reg(ac97, reg))
 300                 return 0;
 301         return ac97->bus->ops->read(ac97, reg);
 302 }
 303
 304 /* read a register - return the cached value if already read */
 305 static inline unsigned short snd_ac97_read_cache(struct snd_ac97 *ac97, unsigned short reg)
 306 {
 307         if (! test_bit(reg, ac97->reg_accessed)) {
 308                 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
 309                 // set_bit(reg, ac97->reg_accessed);
 310         }
 311         return ac97->regs[reg];
 312 }
 313
 314 EXPORT_SYMBOL(snd_ac97_read);
 315
 316 /**
 317  * snd_ac97_write_cache - write a value on the given register and update the cache
 318  * @ac97: the ac97 instance
 319  * @reg: the register to change
 320  * @value: the value to set
 321  *
 322  * Writes a value on the given register and updates the register
 323  * cache.  The cached values are used for the cached-read and the
 324  * suspend/resume.
 325  */
 326 void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 327 {
 328         if (!snd_ac97_valid_reg(ac97, reg))
 329                 return;
 330         mutex_lock(&ac97->reg_mutex);
 331         ac97->regs[reg] = value;
 332         ac97->bus->ops->write(ac97, reg, value);
 333         set_bit(reg, ac97->reg_accessed);
 334         mutex_unlock(&ac97->reg_mutex);
 335 }
 336
 337 EXPORT_SYMBOL(snd_ac97_write_cache);
 338
 339 /**
 340  * snd_ac97_update - update the value on the given register
 341  * @ac97: the ac97 instance
 342  * @reg: the register to change
 343  * @value: the value to set
 344  *
 345  * Compares the value with the register cache and updates the value
 346  * only when the value is changed.
 347  *
 348  * Returns 1 if the value is changed, 0 if no change, or a negative
 349  * code on failure.
 350  */
 351 int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 352 {
 353         int change;
 354
 355         if (!snd_ac97_valid_reg(ac97, reg))
 356                 return -EINVAL;
 357         mutex_lock(&ac97->reg_mutex);
 358         change = ac97->regs[reg] != value;
 359         if (change) {
 360                 ac97->regs[reg] = value;
 361                 ac97->bus->ops->write(ac97, reg, value);
 362         }
 363         set_bit(reg, ac97->reg_accessed);
 364         mutex_unlock(&ac97->reg_mutex);
 365         return change;
 366 }
 367
 368 EXPORT_SYMBOL(snd_ac97_update);
 369
 370 /**
 371  * snd_ac97_update_bits - update the bits on the given register
 372  * @ac97: the ac97 instance
 373  * @reg: the register to change
 374  * @mask: the bit-mask to change
 375  * @value: the value to set
 376  *
 377  * Updates the masked-bits on the given register only when the value
 378  * is changed.
 379  *
 380  * Returns 1 if the bits are changed, 0 if no change, or a negative
 381  * code on failure.
 382  */
 383 int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value)
 384 {
 385         int change;
 386
 387         if (!snd_ac97_valid_reg(ac97, reg))
 388                 return -EINVAL;
 389         mutex_lock(&ac97->reg_mutex);
 390         change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 391         mutex_unlock(&ac97->reg_mutex);
 392         return change;
 393 }
 394
 395 EXPORT_SYMBOL(snd_ac97_update_bits);
 396
 397 /* no lock version - see snd_ac97_update_bits() */
 398 int snd_ac97_update_bits_nolock(struct snd_ac97 *ac97, unsigned short reg,
 399                                 unsigned short mask, unsigned short value)
 400 {
 401         int change;
 402         unsigned short old, new;
 403
 404         old = snd_ac97_read_cache(ac97, reg);
 405         new = (old & ~mask) | (value & mask);
 406         change = old != new;
 407         if (change) {
 408                 ac97->regs[reg] = new;
 409                 ac97->bus->ops->write(ac97, reg, new);
 410         }
 411         set_bit(reg, ac97->reg_accessed);
 412         return change;
 413 }
 414
 415 static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, unsigned short mask, unsigned short value)
 416 {
 417         int change;
 418         unsigned short old, new, cfg;
 419
 420         mutex_lock(&ac97->page_mutex);
 421         old = ac97->spec.ad18xx.pcmreg[codec];
 422         new = (old & ~mask) | (value & mask);
 423         change = old != new;
 424         if (change) {
 425                 mutex_lock(&ac97->reg_mutex);
 426                 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
 427                 ac97->spec.ad18xx.pcmreg[codec] = new;
 428                 /* select single codec */
 429                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 430                                  (cfg & ~0x7000) |
 431                                  ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
 432                 /* update PCM bits */
 433                 ac97->bus->ops->write(ac97, AC97_PCM, new);
 434                 /* select all codecs */
 435                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 436                                  cfg | 0x7000);
 437                 mutex_unlock(&ac97->reg_mutex);
 438         }
 439         mutex_unlock(&ac97->page_mutex);
 440         return change;
 441 }
 442
 443 /*
 444  * Controls
 445  */
 446
 447 static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
 448                                      struct snd_ctl_elem_info *uinfo)
 449 {
 450         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 451
 452         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 453         uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
 454         uinfo->value.enumerated.items = e->mask;
 455
 456         if (uinfo->value.enumerated.item > e->mask - 1)
 457                 uinfo->value.enumerated.item = e->mask - 1;
 458         strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
 459         return 0;
 460 }
 461
 462 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
 463                                     struct snd_ctl_elem_value *ucontrol)
 464 {
 465         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 466         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 467         unsigned short val, bitmask;
 468
 469         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 470                 ;
 471         val = snd_ac97_read_cache(ac97, e->reg);
 472         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
 473         if (e->shift_l != e->shift_r)
 474                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
 475
 476         return 0;
 477 }
 478
 479 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
 480                                     struct snd_ctl_elem_value *ucontrol)
 481 {
 482         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 483         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 484         unsigned short val;
 485         unsigned short mask, bitmask;
 486
 487         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 488                 ;
 489         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
 490                 return -EINVAL;
 491         val = ucontrol->value.enumerated.item[0] << e->shift_l;
 492         mask = (bitmask - 1) << e->shift_l;
 493         if (e->shift_l != e->shift_r) {
 494                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
 495                         return -EINVAL;
 496                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
 497                 mask |= (bitmask - 1) << e->shift_r;
 498         }
 499         return snd_ac97_update_bits(ac97, e->reg, mask, val);
 500 }
 501
 502 /* save/restore ac97 v2.3 paging */
 503 static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
 504 {
 505         int page_save = -1;
 506         if ((kcontrol->private_value & (1<<25)) &&
 507             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
 508             (reg >= 0x60 && reg < 0x70)) {
 509                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
 510                 mutex_lock(&ac97->page_mutex); /* lock paging */
 511                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
 512                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
 513         }
 514         return page_save;
 515 }
 516
 517 static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
 518 {
 519         if (page_save >= 0) {
 520                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
 521                 mutex_unlock(&ac97->page_mutex); /* unlock paging */
 522         }
 523 }
 524
 525 /* volume and switch controls */
 526 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
 527                                struct snd_ctl_elem_info *uinfo)
 528 {
 529         int mask = (kcontrol->private_value >> 16) & 0xff;
 530         int shift = (kcontrol->private_value >> 8) & 0x0f;
 531         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 532
 533         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 534         uinfo->count = shift == rshift ? 1 : 2;
 535         uinfo->value.integer.min = 0;
 536         uinfo->value.integer.max = mask;
 537         return 0;
 538 }
 539
 540 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
 541                               struct snd_ctl_elem_value *ucontrol)
 542 {
 543         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 544         int reg = kcontrol->private_value & 0xff;
 545         int shift = (kcontrol->private_value >> 8) & 0x0f;
 546         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 547         int mask = (kcontrol->private_value >> 16) & 0xff;
 548         int invert = (kcontrol->private_value >> 24) & 0x01;
 549         int page_save;
 550
 551         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 552         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
 553         if (shift != rshift)
 554                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
 555         if (invert) {
 556                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 557                 if (shift != rshift)
 558                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 559         }
 560         snd_ac97_page_restore(ac97, page_save);
 561         return 0;
 562 }
 563
 564 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
 565                               struct snd_ctl_elem_value *ucontrol)
 566 {
 567         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 568         int reg = kcontrol->private_value & 0xff;
 569         int shift = (kcontrol->private_value >> 8) & 0x0f;
 570         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 571         int mask = (kcontrol->private_value >> 16) & 0xff;
 572         int invert = (kcontrol->private_value >> 24) & 0x01;
 573         int err, page_save;
 574         unsigned short val, val2, val_mask;
 575
 576         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 577         val = (ucontrol->value.integer.value[0] & mask);
 578         if (invert)
 579                 val = mask - val;
 580         val_mask = mask << shift;
 581         val = val << shift;
 582         if (shift != rshift) {
 583                 val2 = (ucontrol->value.integer.value[1] & mask);
 584                 if (invert)
 585                         val2 = mask - val2;
 586                 val_mask |= mask << rshift;
 587                 val |= val2 << rshift;
 588         }
 589         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
 590         snd_ac97_page_restore(ac97, page_save);
 591 #ifdef CONFIG_SND_AC97_POWER_SAVE
 592         /* check analog mixer power-down */
 593         if ((val_mask & 0x8000) &&
 594             (kcontrol->private_value & (1<<30))) {
 595                 if (val & 0x8000)
 596                         ac97->power_up &= ~(1 << (reg>>1));
 597                 else
 598                         ac97->power_up |= 1 << (reg>>1);
 599                 update_power_regs(ac97);
 600         }
 601 #endif
 602         return err;
 603 }
 604
 605 static const struct snd_kcontrol_new snd_ac97_controls_master_mono[2] = {
 606 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
 607 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
 608 };
 609
 610 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
 611 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
 612 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
 613 };
 614
 615 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
 616 AC97_SINGLE("Beep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 617 AC97_SINGLE("Beep Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 618 };
 619
 620 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
 621         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
 622
 623
 624 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
 625 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
 626 static const char* std_mix[] = {"Mix", "Mic"};
 627 static const char* std_mic[] = {"Mic1", "Mic2"};
 628
 629 static const struct ac97_enum std_enum[] = {
 630 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
 631 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
 632 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
 633 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
 634 };
 635
 636 static const struct snd_kcontrol_new snd_ac97_control_capture_src =
 637 AC97_ENUM("Capture Source", std_enum[0]);
 638
 639 static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
 640 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
 641
 642 static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
 643 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
 644 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
 645 };
 646
 647 enum {
 648         AC97_GENERAL_PCM_OUT = 0,
 649         AC97_GENERAL_STEREO_ENHANCEMENT,
 650         AC97_GENERAL_3D,
 651         AC97_GENERAL_LOUDNESS,
 652         AC97_GENERAL_MONO,
 653         AC97_GENERAL_MIC,
 654         AC97_GENERAL_LOOPBACK
 655 };
 656
 657 static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
 658 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
 659 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
 660 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 661 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
 662 AC97_ENUM("Mono Output Select", std_enum[2]),
 663 AC97_ENUM("Mic Select", std_enum[3]),
 664 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
 665 };
 666
 667 static const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
 668 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
 669 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
 670 };
 671
 672 static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
 673 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
 674 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
 675 };
 676
 677 static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
 678 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
 679 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
 680 };
 681
 682 static const struct snd_kcontrol_new snd_ac97_control_eapd =
 683 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
 684
 685 static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
 686 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
 687 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
 688 };
 689
 690 /* change the existing EAPD control as inverted */
 691 static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
 692 {
 693         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
 694         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
 695         ac97->scaps |= AC97_SCAP_INV_EAPD;
 696 }
 697
 698 static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 699 {
 700         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 701         uinfo->count = 1;
 702         return 0;
 703 }
 704
 705 static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 706 {
 707         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 708                                            IEC958_AES0_NONAUDIO |
 709                                            IEC958_AES0_CON_EMPHASIS_5015 |
 710                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 711         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 712                                            IEC958_AES1_CON_ORIGINAL;
 713         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 714         return 0;
 715 }
 716
 717 static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 718 {
 719         /* FIXME: AC'97 spec doesn't say which bits are used for what */
 720         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 721                                            IEC958_AES0_NONAUDIO |
 722                                            IEC958_AES0_PRO_FS |
 723                                            IEC958_AES0_PRO_EMPHASIS_5015;
 724         return 0;
 725 }
 726
 727 static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 728 {
 729         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 730
 731         mutex_lock(&ac97->reg_mutex);
 732         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
 733         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
 734         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
 735         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
 736         mutex_unlock(&ac97->reg_mutex);
 737         return 0;
 738 }
 739
 740 static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 741 {
 742         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 743         unsigned int new = 0;
 744         unsigned short val = 0;
 745         int change;
 746
 747         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
 748         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
 749                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
 750                 switch (new & IEC958_AES0_PRO_FS) {
 751                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
 752                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
 753                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
 754                 default:                       val |= 1<<12; break;
 755                 }
 756                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 757                         val |= 1<<3;
 758         } else {
 759                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
 760                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
 761                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
 762                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 763                         val |= 1<<3;
 764                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
 765                         val |= 1<<2;
 766                 val |= ((new >> 8) & 0xff) << 4;        // category + original
 767                 switch ((new >> 24) & 0xff) {
 768                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
 769                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
 770                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
 771                 default:                       val |= 1<<12; break;
 772                 }
 773         }
 774
 775         mutex_lock(&ac97->reg_mutex);
 776         change = ac97->spdif_status != new;
 777         ac97->spdif_status = new;
 778
 779         if (ac97->flags & AC97_CS_SPDIF) {
 780                 int x = (val >> 12) & 0x03;
 781                 switch (x) {
 782                 case 0: x = 1; break;  // 44.1
 783                 case 2: x = 0; break;  // 48.0
 784                 default: x = 0; break; // illegal.
 785                 }
 786                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
 787         } else if (ac97->flags & AC97_CX_SPDIF) {
 788                 int v;
 789                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
 790                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
 791                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
 792                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
 793                                                       v);
 794         } else if (ac97->id == AC97_ID_YMF743) {
 795                 change |= snd_ac97_update_bits_nolock(ac97,
 796                                                       AC97_YMF7X3_DIT_CTRL,
 797                                                       0xff38,
 798                                                       ((val << 4) & 0xff00) |
 799                                                       ((val << 2) & 0x0038));
 800         } else {
 801                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 802                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 803
 804                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
 805                 if (extst & AC97_EA_SPDIF) {
 806                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 807                 }
 808         }
 809         mutex_unlock(&ac97->reg_mutex);
 810
 811         return change;
 812 }
 813
 814 static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 815 {
 816         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 817         int reg = kcontrol->private_value & 0xff;
 818         int shift = (kcontrol->private_value >> 8) & 0xff;
 819         int mask = (kcontrol->private_value >> 16) & 0xff;
 820         // int invert = (kcontrol->private_value >> 24) & 0xff;
 821         unsigned short value, old, new;
 822         int change;
 823
 824         value = (ucontrol->value.integer.value[0] & mask);
 825
 826         mutex_lock(&ac97->reg_mutex);
 827         mask <<= shift;
 828         value <<= shift;
 829         old = snd_ac97_read_cache(ac97, reg);
 830         new = (old & ~mask) | value;
 831         change = old != new;
 832
 833         if (change) {
 834                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 835                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 836                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 837                 if (extst & AC97_EA_SPDIF)
 838                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 839         }
 840         mutex_unlock(&ac97->reg_mutex);
 841         return change;
 842 }
 843
 844 static const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
 845         {
 846                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 847                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 848                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 849                 .info = snd_ac97_spdif_mask_info,
 850                 .get = snd_ac97_spdif_cmask_get,
 851         },
 852         {
 853                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 854                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 855                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 856                 .info = snd_ac97_spdif_mask_info,
 857                 .get = snd_ac97_spdif_pmask_get,
 858         },
 859         {
 860                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 861                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 862                 .info = snd_ac97_spdif_mask_info,
 863                 .get = snd_ac97_spdif_default_get,
 864                 .put = snd_ac97_spdif_default_put,
 865         },
 866
 867         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
 868         {
 869                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 870                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
 871                 .info = snd_ac97_info_volsw,
 872                 .get = snd_ac97_get_volsw,
 873                 .put = snd_ac97_put_spsa,
 874                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
 875         },
 876 };
 877
 878 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
 879 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
 880   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
 881   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
 882
 883 static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 884 {
 885         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 886         int mask = (kcontrol->private_value >> 16) & 0x0f;
 887         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 888         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 889
 890         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 891         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 892                 uinfo->count = 2;
 893         else
 894                 uinfo->count = 1;
 895         uinfo->value.integer.min = 0;
 896         uinfo->value.integer.max = mask;
 897         return 0;
 898 }
 899
 900 static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 901 {
 902         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 903         int codec = kcontrol->private_value & 3;
 904         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 905         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 906         int mask = (kcontrol->private_value >> 16) & 0xff;
 907
 908         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
 909         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 910                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
 911         return 0;
 912 }
 913
 914 static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 915 {
 916         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 917         int codec = kcontrol->private_value & 3;
 918         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 919         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 920         int mask = (kcontrol->private_value >> 16) & 0xff;
 921         unsigned short val, valmask;
 922
 923         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
 924         valmask = mask << lshift;
 925         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
 926                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
 927                 valmask |= mask << rshift;
 928         }
 929         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
 930 }
 931
 932 #define AD18XX_PCM_VOLUME(xname, codec) \
 933 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
 934   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
 935   .private_value = codec }
 936
 937 static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 938 {
 939         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 940         uinfo->count = 2;
 941         uinfo->value.integer.min = 0;
 942         uinfo->value.integer.max = 31;
 943         return 0;
 944 }
 945
 946 static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 947 {
 948         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 949         int codec = kcontrol->private_value & 3;
 950
 951         mutex_lock(&ac97->page_mutex);
 952         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
 953         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
 954         mutex_unlock(&ac97->page_mutex);
 955         return 0;
 956 }
 957
 958 static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 959 {
 960         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 961         int codec = kcontrol->private_value & 3;
 962         unsigned short val1, val2;
 963
 964         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
 965         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
 966         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
 967 }
 968
 969 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
 970 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
 971 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
 972 };
 973
 974 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
 975 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
 976 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
 977 };
 978
 979 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
 980 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
 981 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
 982 };
 983
 984 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
 985 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
 986 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
 987 };
 988
 989 /*
 990  *
 991  */
 992
 993 static void snd_ac97_powerdown(struct snd_ac97 *ac97);
 994
 995 static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
 996 {
 997         if (bus) {
 998                 snd_ac97_bus_proc_done(bus);
 999                 kfree(bus->pcms);
1000                 if (bus->private_free)
1001                         bus->private_free(bus);
1002                 kfree(bus);
1003         }
1004         return 0;
1005 }
1006
1007 static int snd_ac97_bus_dev_free(struct snd_device *device)
1008 {
1009         struct snd_ac97_bus *bus = device->device_data;
1010         return snd_ac97_bus_free(bus);
1011 }
1012
1013 static int snd_ac97_free(struct snd_ac97 *ac97)
1014 {
1015         if (ac97) {
1016 #ifdef CONFIG_SND_AC97_POWER_SAVE
1017                 cancel_delayed_work(&ac97->power_work);
1018                 flush_scheduled_work();
1019 #endif
1020                 snd_ac97_proc_done(ac97);
1021                 if (ac97->bus)
1022                         ac97->bus->codec[ac97->num] = NULL;
1023                 if (ac97->private_free)
1024                         ac97->private_free(ac97);
1025                 kfree(ac97);
1026         }
1027         return 0;
1028 }
1029
1030 static int snd_ac97_dev_free(struct snd_device *device)
1031 {
1032         struct snd_ac97 *ac97 = device->device_data;
1033         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1034         return snd_ac97_free(ac97);
1035 }
1036
1037 static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1038 {
1039         unsigned short val, mask = 0x8000;
1040
1041         if (! snd_ac97_valid_reg(ac97, reg))
1042                 return 0;
1043
1044         switch (reg) {
1045         case AC97_MASTER_TONE:
1046                 return ac97->caps & 0x04 ? 1 : 0;
1047         case AC97_HEADPHONE:
1048                 return ac97->caps & 0x10 ? 1 : 0;
1049         case AC97_REC_GAIN_MIC:
1050                 return ac97->caps & 0x01 ? 1 : 0;
1051         case AC97_3D_CONTROL:
1052                 if (ac97->caps & 0x7c00) {
1053                         val = snd_ac97_read(ac97, reg);
1054                         /* if nonzero - fixed and we can't set it */
1055                         return val == 0;
1056                 }
1057                 return 0;
1058         case AC97_CENTER_LFE_MASTER:    /* center */
1059                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1060                         return 0;
1061                 break;
1062         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1063                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1064                         return 0;
1065                 reg = AC97_CENTER_LFE_MASTER;
1066                 mask = 0x0080;
1067                 break;
1068         case AC97_SURROUND_MASTER:
1069                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1070                         return 0;
1071                 break;
1072         }
1073
1074         val = snd_ac97_read(ac97, reg);
1075         if (!(val & mask)) {
1076                 /* nothing seems to be here - mute flag is not set */
1077                 /* try another test */
1078                 snd_ac97_write_cache(ac97, reg, val | mask);
1079                 val = snd_ac97_read(ac97, reg);
1080                 val = snd_ac97_read(ac97, reg);
1081                 if (!(val & mask))
1082                         return 0;       /* nothing here */
1083         }
1084         return 1;               /* success, useable */
1085 }
1086
1087 static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1088 {
1089         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1090         unsigned char max[3] = { 63, 31, 15 };
1091         int i;
1092
1093         /* first look up the static resolution table */
1094         if (ac97->res_table) {
1095                 const struct snd_ac97_res_table *tbl;
1096                 for (tbl = ac97->res_table; tbl->reg; tbl++) {
1097                         if (tbl->reg == reg) {
1098                                 *lo_max = tbl->bits & 0xff;
1099                                 *hi_max = (tbl->bits >> 8) & 0xff;
1100                                 return;
1101                         }
1102                 }
1103         }
1104
1105         *lo_max = *hi_max = 0;
1106         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1107                 unsigned short val;
1108                 snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8));
1109                 /* Do the read twice due to buffers on some ac97 codecs.
1110                  * e.g. The STAC9704 returns exactly what you wrote to the register
1111                  * if you read it immediately. This causes the detect routine to fail.
1112                  */
1113                 val = snd_ac97_read(ac97, reg);
1114                 val = snd_ac97_read(ac97, reg);
1115                 if (! *lo_max && (val & 0x7f) == cbit[i])
1116                         *lo_max = max[i];
1117                 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1118                         *hi_max = max[i];
1119                 if (*lo_max && *hi_max)
1120                         break;
1121         }
1122 }
1123
1124 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1125 {
1126         unsigned short mask, val, orig, res;
1127
1128         mask = 1 << bit;
1129         orig = snd_ac97_read(ac97, reg);
1130         val = orig ^ mask;
1131         snd_ac97_write(ac97, reg, val);
1132         res = snd_ac97_read(ac97, reg);
1133         snd_ac97_write_cache(ac97, reg, orig);
1134         return res == val;
1135 }
1136
1137 /* check the volume resolution of center/lfe */
1138 static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1139 {
1140         unsigned short val, val1;
1141
1142         *max = 63;
1143         val = 0x8080 | (0x20 << shift);
1144         snd_ac97_write(ac97, reg, val);
1145         val1 = snd_ac97_read(ac97, reg);
1146         if (val != val1) {
1147                 *max = 31;
1148         }
1149         /* reset volume to zero */
1150         snd_ac97_write_cache(ac97, reg, 0x8080);
1151 }
1152
1153 static inline int printable(unsigned int x)
1154 {
1155         x &= 0xff;
1156         if (x < ' ' || x >= 0x71) {
1157                 if (x <= 0x89)
1158                         return x - 0x71 + 'A';
1159                 return '?';
1160         }
1161         return x;
1162 }
1163
1164 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
1165                                           struct snd_ac97 * ac97)
1166 {
1167         struct snd_kcontrol_new template;
1168         memcpy(&template, _template, sizeof(template));
1169         template.index = ac97->num;
1170         return snd_ctl_new1(&template, ac97);
1171 }
1172
1173 /*
1174  * create mute switch(es) for normal stereo controls
1175  */
1176 static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1177                                      int check_stereo, int check_amix,
1178                                      struct snd_ac97 *ac97)
1179 {
1180         struct snd_kcontrol *kctl;
1181         int err;
1182         unsigned short val, val1, mute_mask;
1183
1184         if (! snd_ac97_valid_reg(ac97, reg))
1185                 return 0;
1186
1187         mute_mask = 0x8000;
1188         val = snd_ac97_read(ac97, reg);
1189         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1190                 /* check whether both mute bits work */
1191                 val1 = val | 0x8080;
1192                 snd_ac97_write(ac97, reg, val1);
1193                 if (val1 == snd_ac97_read(ac97, reg))
1194                         mute_mask = 0x8080;
1195         }
1196         if (mute_mask == 0x8080) {
1197                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1198                 if (check_amix)
1199                         tmp.private_value |= (1 << 30);
1200                 tmp.index = ac97->num;
1201                 kctl = snd_ctl_new1(&tmp, ac97);
1202         } else {
1203                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1204                 if (check_amix)
1205                         tmp.private_value |= (1 << 30);
1206                 tmp.index = ac97->num;
1207                 kctl = snd_ctl_new1(&tmp, ac97);
1208         }
1209         err = snd_ctl_add(card, kctl);
1210         if (err < 0)
1211                 return err;
1212         /* mute as default */
1213         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1214         return 0;
1215 }
1216
1217 /*
1218  * set dB information
1219  */
1220 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
1221 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
1222 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1223 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1224 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1225
1226 static const unsigned int *find_db_scale(unsigned int maxval)
1227 {
1228         switch (maxval) {
1229         case 0x0f: return db_scale_4bit;
1230         case 0x1f: return db_scale_5bit;
1231         case 0x3f: return db_scale_6bit;
1232         }
1233         return NULL;
1234 }
1235
1236 static void set_tlv_db_scale(struct snd_kcontrol *kctl, const unsigned int *tlv)
1237 {
1238         kctl->tlv.p = tlv;
1239         if (tlv)
1240                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1241 }
1242
1243 /*
1244  * create a volume for normal stereo/mono controls
1245  */
1246 static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1247                              unsigned int hi_max, struct snd_ac97 *ac97)
1248 {
1249         int err;
1250         struct snd_kcontrol *kctl;
1251
1252         if (! snd_ac97_valid_reg(ac97, reg))
1253                 return 0;
1254         if (hi_max) {
1255                 /* invert */
1256                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1257                 tmp.index = ac97->num;
1258                 kctl = snd_ctl_new1(&tmp, ac97);
1259         } else {
1260                 /* invert */
1261                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1262                 tmp.index = ac97->num;
1263                 kctl = snd_ctl_new1(&tmp, ac97);
1264         }
1265         if (reg >= AC97_PHONE && reg <= AC97_PCM)
1266                 set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
1267         else
1268                 set_tlv_db_scale(kctl, find_db_scale(lo_max));
1269         err = snd_ctl_add(card, kctl);
1270         if (err < 0)
1271                 return err;
1272         snd_ac97_write_cache(ac97, reg,
1273                              (snd_ac97_read(ac97, reg) & 0x8080) |
1274                              lo_max | (hi_max << 8));
1275         return 0;
1276 }
1277
1278 /*
1279  * create a mute-switch and a volume for normal stereo/mono controls
1280  */
1281 static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1282                                     int reg, int check_stereo, int check_amix,
1283                                     struct snd_ac97 *ac97)
1284 {
1285         int err;
1286         char name[44];
1287         unsigned char lo_max, hi_max;
1288
1289         if (! snd_ac97_valid_reg(ac97, reg))
1290                 return 0;
1291
1292         if (snd_ac97_try_bit(ac97, reg, 15)) {
1293                 sprintf(name, "%s Switch", pfx);
1294                 if ((err = snd_ac97_cmute_new_stereo(card, name, reg,
1295                                                      check_stereo, check_amix,
1296                                                      ac97)) < 0)
1297                         return err;
1298         }
1299         check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1300         if (lo_max) {
1301                 sprintf(name, "%s Volume", pfx);
1302                 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1303                         return err;
1304         }
1305         return 0;
1306 }
1307
1308 #define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1309         snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1310 #define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1311         snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1312
1313 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1314
1315 static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1316 {
1317         struct snd_card *card = ac97->bus->card;
1318         struct snd_kcontrol *kctl;
1319         int err;
1320         unsigned int idx;
1321         unsigned char max;
1322
1323         /* build master controls */
1324         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1325         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1326                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1327                         err = snd_ac97_cmute_new(card, "Master Playback Switch",
1328                                                  AC97_MASTER, 0, ac97);
1329                 else
1330                         err = snd_ac97_cmix_new(card, "Master Playback",
1331                                                 AC97_MASTER, 0, ac97);
1332                 if (err < 0)
1333                         return err;
1334         }
1335
1336         ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080;
1337
1338         /* build center controls */
1339         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1340                 && !(ac97->flags & AC97_AD_MULTI)) {
1341                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1342                         return err;
1343                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1344                         return err;
1345                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1346                 kctl->private_value &= ~(0xff << 16);
1347                 kctl->private_value |= (int)max << 16;
1348                 set_tlv_db_scale(kctl, find_db_scale(max));
1349                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1350         }
1351
1352         /* build LFE controls */
1353         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1354                 && !(ac97->flags & AC97_AD_MULTI)) {
1355                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1356                         return err;
1357                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1358                         return err;
1359                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1360                 kctl->private_value &= ~(0xff << 16);
1361                 kctl->private_value |= (int)max << 16;
1362                 set_tlv_db_scale(kctl, find_db_scale(max));
1363                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1364         }
1365
1366         /* build surround controls */
1367         if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1368                 && !(ac97->flags & AC97_AD_MULTI)) {
1369                 /* Surround Master (0x38) is with stereo mutes */
1370                 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1371                                                     AC97_SURROUND_MASTER, 1, 0,
1372                                                     ac97)) < 0)
1373                         return err;
1374         }
1375
1376         /* build headphone controls */
1377         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1378                 if ((err = snd_ac97_cmix_new(card, "Headphone Playback",
1379                                              AC97_HEADPHONE, 0, ac97)) < 0)
1380                         return err;
1381         }
1382
1383         /* build master mono controls */
1384         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1385                 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback",
1386                                              AC97_MASTER_MONO, 0, ac97)) < 0)
1387                         return err;
1388         }
1389
1390         /* build master tone controls */
1391         if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1392                 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1393                         for (idx = 0; idx < 2; idx++) {
1394                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1395                                         return err;
1396                                 if (ac97->id == AC97_ID_YMF743 ||
1397                                     ac97->id == AC97_ID_YMF753) {
1398                                         kctl->private_value &= ~(0xff << 16);
1399                                         kctl->private_value |= 7 << 16;
1400                                 }
1401                         }
1402                         snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1403                 }
1404         }
1405
1406         /* build Beep controls */
1407         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1408                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1409             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1410                 for (idx = 0; idx < 2; idx++)
1411                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1412                                 return err;
1413                 set_tlv_db_scale(kctl, db_scale_4bit);
1414                 snd_ac97_write_cache(ac97, AC97_PC_BEEP,
1415                                      snd_ac97_read(ac97, AC97_PC_BEEP) | 0x801e);
1416         }
1417
1418         /* build Phone controls */
1419         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1420                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1421                         if ((err = snd_ac97_cmix_new(card, "Phone Playback",
1422                                                      AC97_PHONE, 1, ac97)) < 0)
1423                                 return err;
1424                 }
1425         }
1426
1427         /* build MIC controls */
1428         if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1429                 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1430                         if ((err = snd_ac97_cmix_new(card, "Mic Playback",
1431                                                      AC97_MIC, 1, ac97)) < 0)
1432                                 return err;
1433                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1434                                 return err;
1435                 }
1436         }
1437
1438         /* build Line controls */
1439         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1440                 if ((err = snd_ac97_cmix_new(card, "Line Playback",
1441                                              AC97_LINE, 1, ac97)) < 0)
1442                         return err;
1443         }
1444
1445         /* build CD controls */
1446         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1447                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1448                         if ((err = snd_ac97_cmix_new(card, "CD Playback",
1449                                                      AC97_CD, 1, ac97)) < 0)
1450                                 return err;
1451                 }
1452         }
1453
1454         /* build Video controls */
1455         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1456                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1457                         if ((err = snd_ac97_cmix_new(card, "Video Playback",
1458                                                      AC97_VIDEO, 1, ac97)) < 0)
1459                                 return err;
1460                 }
1461         }
1462
1463         /* build Aux controls */
1464         if (!(ac97->flags & AC97_HAS_NO_AUX)) {
1465                 if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1466                         if ((err = snd_ac97_cmix_new(card, "Aux Playback",
1467                                                      AC97_AUX, 1, ac97)) < 0)
1468                                 return err;
1469                 }
1470         }
1471
1472         /* build PCM controls */
1473         if (ac97->flags & AC97_AD_MULTI) {
1474                 unsigned short init_val;
1475                 if (ac97->flags & AC97_STEREO_MUTES)
1476                         init_val = 0x9f9f;
1477                 else
1478                         init_val = 0x9f1f;
1479                 for (idx = 0; idx < 2; idx++)
1480                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1481                                 return err;
1482                 set_tlv_db_scale(kctl, db_scale_5bit);
1483                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1484                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1485                         for (idx = 0; idx < 2; idx++)
1486                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1487                                         return err;
1488                         set_tlv_db_scale(kctl, db_scale_5bit);
1489                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1490                 }
1491                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1492                         for (idx = 0; idx < 2; idx++)
1493                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1494                                         return err;
1495                         set_tlv_db_scale(kctl, db_scale_5bit);
1496                         for (idx = 0; idx < 2; idx++)
1497                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1498                                         return err;
1499                         set_tlv_db_scale(kctl, db_scale_5bit);
1500                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1501                 }
1502                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1503         } else {
1504                 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1505                         if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1506                                 err = snd_ac97_cmute_new(card,
1507                                                          "PCM Playback Switch",
1508                                                          AC97_PCM, 0, ac97);
1509                         else
1510                                 err = snd_ac97_cmix_new(card, "PCM Playback",
1511                                                         AC97_PCM, 0, ac97);
1512                         if (err < 0)
1513                                 return err;
1514                 }
1515         }
1516
1517         /* build Capture controls */
1518         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1519                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1520                         return err;
1521                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1522                         err = snd_ac97_cmute_new(card, "Capture Switch",
1523                                                  AC97_REC_GAIN, 0, ac97);
1524                         if (err < 0)
1525                                 return err;
1526                 }
1527                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1528                         return err;
1529                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1530                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1531                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1532         }
1533         /* build MIC Capture controls */
1534         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1535                 for (idx = 0; idx < 2; idx++)
1536                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1537                                 return err;
1538                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1539                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1540         }
1541
1542         /* build PCM out path & mute control */
1543         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1544                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1545                         return err;
1546         }
1547
1548         /* build Simulated Stereo Enhancement control */
1549         if (ac97->caps & 0x0008) {
1550                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1551                         return err;
1552         }
1553
1554         /* build 3D Stereo Enhancement control */
1555         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1556                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1557                         return err;
1558         }
1559
1560         /* build Loudness control */
1561         if (ac97->caps & 0x0020) {
1562                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1563                         return err;
1564         }
1565
1566         /* build Mono output select control */
1567         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1568                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1569                         return err;
1570         }
1571
1572         /* build Mic select control */
1573         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1574                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1575                         return err;
1576         }
1577
1578         /* build ADC/DAC loopback control */
1579         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1580                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1581                         return err;
1582         }
1583
1584         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1585
1586         /* build 3D controls */
1587         if (ac97->build_ops->build_3d) {
1588                 ac97->build_ops->build_3d(ac97);
1589         } else {
1590                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1591                         unsigned short val;
1592                         val = 0x0707;
1593                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1594                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1595                         val = val == 0x0606;
1596                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1597                                 return err;
1598                         if (val)
1599                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1600                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1601                                 return err;
1602                         if (val)
1603                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1604                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1605                 }
1606         }
1607
1608         /* build S/PDIF controls */
1609
1610         /* Hack for ASUS P5P800-VM, which does not indicate S/PDIF capability */
1611         if (ac97->subsystem_vendor == 0x1043 &&
1612             ac97->subsystem_device == 0x810f)
1613                 ac97->ext_id |= AC97_EI_SPDIF;
1614
1615         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1616                 if (ac97->build_ops->build_spdif) {
1617                         if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1618                                 return err;
1619                 } else {
1620                         for (idx = 0; idx < 5; idx++)
1621                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1622                                         return err;
1623                         if (ac97->build_ops->build_post_spdif) {
1624                                 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1625                                         return err;
1626                         }
1627                         /* set default PCM S/PDIF params */
1628                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1629                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1630                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1631                 }
1632                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1633         }
1634
1635         /* build chip specific controls */
1636         if (ac97->build_ops->build_specific)
1637                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1638                         return err;
1639
1640         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1641                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1642                 if (! kctl)
1643                         return -ENOMEM;
1644                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1645                         set_inv_eapd(ac97, kctl);
1646                 if ((err = snd_ctl_add(card, kctl)) < 0)
1647                         return err;
1648         }
1649
1650         return 0;
1651 }
1652
1653 static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1654 {
1655         int err, idx;
1656
1657         /*
1658         printk(KERN_DEBUG "AC97_GPIO_CFG = %x\n",
1659                snd_ac97_read(ac97,AC97_GPIO_CFG));
1660         */
1661         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1662         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1663         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1664         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1665         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1666
1667         /* build modem switches */
1668         for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1669                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1670                         return err;
1671
1672         /* build chip specific controls */
1673         if (ac97->build_ops->build_specific)
1674                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1675                         return err;
1676
1677         return 0;
1678 }
1679
1680 static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1681 {
1682         unsigned short val;
1683         unsigned int tmp;
1684
1685         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1686         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1687         if (shadow_reg)
1688                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1689         val = snd_ac97_read(ac97, reg);
1690         return val == (tmp & 0xffff);
1691 }
1692
1693 static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1694 {
1695         unsigned int result = 0;
1696         unsigned short saved;
1697
1698         if (ac97->bus->no_vra) {
1699                 *r_result = SNDRV_PCM_RATE_48000;
1700                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1701                     reg == AC97_PCM_FRONT_DAC_RATE)
1702                         *r_result |= SNDRV_PCM_RATE_96000;
1703                 return;
1704         }
1705
1706         saved = snd_ac97_read(ac97, reg);
1707         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1708                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1709                                      AC97_EA_DRA, 0);
1710         /* test a non-standard rate */
1711         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1712                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1713         /* let's try to obtain standard rates */
1714         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1715                 result |= SNDRV_PCM_RATE_8000;
1716         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1717                 result |= SNDRV_PCM_RATE_11025;
1718         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1719                 result |= SNDRV_PCM_RATE_16000;
1720         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1721                 result |= SNDRV_PCM_RATE_22050;
1722         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1723                 result |= SNDRV_PCM_RATE_32000;
1724         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1725                 result |= SNDRV_PCM_RATE_44100;
1726         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1727                 result |= SNDRV_PCM_RATE_48000;
1728         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1729             reg == AC97_PCM_FRONT_DAC_RATE) {
1730                 /* test standard double rates */
1731                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1732                                      AC97_EA_DRA, AC97_EA_DRA);
1733                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1734                         result |= SNDRV_PCM_RATE_64000;
1735                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1736                         result |= SNDRV_PCM_RATE_88200;
1737                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1738                         result |= SNDRV_PCM_RATE_96000;
1739                 /* some codecs don't support variable double rates */
1740                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1741                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1742                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1743                                      AC97_EA_DRA, 0);
1744         }
1745         /* restore the default value */
1746         snd_ac97_write_cache(ac97, reg, saved);
1747         if (shadow_reg)
1748                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1749         *r_result = result;
1750 }
1751
1752 /* check AC97_SPDIF register to accept which sample rates */
1753 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1754 {
1755         unsigned int result = 0;
1756         int i;
1757         static unsigned short ctl_bits[] = {
1758                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1759         };
1760         static unsigned int rate_bits[] = {
1761                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1762         };
1763
1764         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1765                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1766                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1767                         result |= rate_bits[i];
1768         }
1769         return result;
1770 }
1771
1772 /* look for the codec id table matching with the given id */
1773 static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1774                                                      unsigned int id)
1775 {
1776         const struct ac97_codec_id *pid;
1777
1778         for (pid = table; pid->id; pid++)
1779                 if (pid->id == (id & pid->mask))
1780                         return pid;
1781         return NULL;
1782 }
1783
1784 void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1785 {
1786         const struct ac97_codec_id *pid;
1787
1788         sprintf(name, "0x%x %c%c%c", id,
1789                 printable(id >> 24),
1790                 printable(id >> 16),
1791                 printable(id >> 8));
1792         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1793         if (! pid)
1794                 return;
1795
1796         strcpy(name, pid->name);
1797         if (ac97 && pid->patch) {
1798                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1799                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1800                         pid->patch(ac97);
1801         }
1802
1803         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1804         if (pid) {
1805                 strcat(name, " ");
1806                 strcat(name, pid->name);
1807                 if (pid->mask != 0xffffffff)
1808                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1809                 if (ac97 && pid->patch) {
1810                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1811                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1812                                 pid->patch(ac97);
1813                 }
1814         } else
1815                 sprintf(name + strlen(name), " id %x", id & 0xff);
1816 }
1817
1818 /**
1819  * snd_ac97_get_short_name - retrieve codec name
1820  * @ac97: the codec instance
1821  *
1822  * Returns the short identifying name of the codec.
1823  */
1824 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1825 {
1826         const struct ac97_codec_id *pid;
1827
1828         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1829                 if (pid->id == (ac97->id & pid->mask))
1830                         return pid->name;
1831         return "unknown codec";
1832 }
1833
1834 EXPORT_SYMBOL(snd_ac97_get_short_name);
1835
1836 /* wait for a while until registers are accessible after RESET
1837  * return 0 if ok, negative not ready
1838  */
1839 static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1840 {
1841         unsigned long end_time;
1842         unsigned short val;
1843
1844         end_time = jiffies + timeout;
1845         do {
1846
1847                 /* use preliminary reads to settle the communication */
1848                 snd_ac97_read(ac97, AC97_RESET);
1849                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1850                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1851                 /* modem? */
1852                 if (with_modem) {
1853                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1854                         if (val != 0xffff && (val & 1) != 0)
1855                                 return 0;
1856                 }
1857                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1858                         /* probably only Xbox issue - all registers are read as zero */
1859                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1860                         if (val != 0 && val != 0xffff)
1861                                 return 0;
1862                 } else {
1863                         /* because the PCM or MASTER volume registers can be modified,
1864                          * the REC_GAIN register is used for tests
1865                          */
1866                         /* test if we can write to the record gain volume register */
1867                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1868                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1869                                 return 0;
1870                 }
1871                 schedule_timeout_uninterruptible(1);
1872         } while (time_after_eq(end_time, jiffies));
1873         return -ENODEV;
1874 }
1875
1876 /**
1877  * snd_ac97_bus - create an AC97 bus component
1878  * @card: the card instance
1879  * @num: the bus number
1880  * @ops: the bus callbacks table
1881  * @private_data: private data pointer for the new instance
1882  * @rbus: the pointer to store the new AC97 bus instance.
1883  *
1884  * Creates an AC97 bus component.  An struct snd_ac97_bus instance is newly
1885  * allocated and initialized.
1886  *
1887  * The ops table must include valid callbacks (at least read and
1888  * write).  The other callbacks, wait and reset, are not mandatory.
1889  *
1890  * The clock is set to 48000.  If another clock is needed, set
1891  * (*rbus)->clock manually.
1892  *
1893  * The AC97 bus instance is registered as a low-level device, so you don't
1894  * have to release it manually.
1895  *
1896  * Returns zero if successful, or a negative error code on failure.
1897  */
1898 int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1899                  void *private_data, struct snd_ac97_bus **rbus)
1900 {
1901         int err;
1902         struct snd_ac97_bus *bus;
1903         static struct snd_device_ops dev_ops = {
1904                 .dev_free =     snd_ac97_bus_dev_free,
1905         };
1906
1907         if (snd_BUG_ON(!card))
1908                 return -EINVAL;
1909         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1910         if (bus == NULL)
1911                 return -ENOMEM;
1912         bus->card = card;
1913         bus->num = num;
1914         bus->ops = ops;
1915         bus->private_data = private_data;
1916         bus->clock = 48000;
1917         spin_lock_init(&bus->bus_lock);
1918         snd_ac97_bus_proc_init(bus);
1919         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1920                 snd_ac97_bus_free(bus);
1921                 return err;
1922         }
1923         if (rbus)
1924                 *rbus = bus;
1925         return 0;
1926 }
1927
1928 EXPORT_SYMBOL(snd_ac97_bus);
1929
1930 /* stop no dev release warning */
1931 static void ac97_device_release(struct device * dev)
1932 {
1933 }
1934
1935 /* register ac97 codec to bus */
1936 static int snd_ac97_dev_register(struct snd_device *device)
1937 {
1938         struct snd_ac97 *ac97 = device->device_data;
1939         int err;
1940
1941         ac97->dev.bus = &ac97_bus_type;
1942         ac97->dev.parent = ac97->bus->card->dev;
1943         ac97->dev.release = ac97_device_release;
1944         dev_set_name(&ac97->dev, "%d-%d:%s",
1945                      ac97->bus->card->number, ac97->num,
1946                      snd_ac97_get_short_name(ac97));
1947         if ((err = device_register(&ac97->dev)) < 0) {
1948                 snd_printk(KERN_ERR "Can't register ac97 bus\n");
1949                 ac97->dev.bus = NULL;
1950                 return err;
1951         }
1952         return 0;
1953 }
1954
1955 /* disconnect ac97 codec */
1956 static int snd_ac97_dev_disconnect(struct snd_device *device)
1957 {
1958         struct snd_ac97 *ac97 = device->device_data;
1959         if (ac97->dev.bus)
1960                 device_unregister(&ac97->dev);
1961         return 0;
1962 }
1963
1964 /* build_ops to do nothing */
1965 static struct snd_ac97_build_ops null_build_ops;
1966
1967 #ifdef CONFIG_SND_AC97_POWER_SAVE
1968 static void do_update_power(struct work_struct *work)
1969 {
1970         update_power_regs(
1971                 container_of(work, struct snd_ac97, power_work.work));
1972 }
1973 #endif
1974
1975 /**
1976  * snd_ac97_mixer - create an Codec97 component
1977  * @bus: the AC97 bus which codec is attached to
1978  * @template: the template of ac97, including index, callbacks and
1979  *         the private data.
1980  * @rac97: the pointer to store the new ac97 instance.
1981  *
1982  * Creates an Codec97 component.  An struct snd_ac97 instance is newly
1983  * allocated and initialized from the template.  The codec
1984  * is then initialized by the standard procedure.
1985  *
1986  * The template must include the codec number (num) and address (addr),
1987  * and the private data (private_data).
1988  *
1989  * The ac97 instance is registered as a low-level device, so you don't
1990  * have to release it manually.
1991  *
1992  * Returns zero if successful, or a negative error code on failure.
1993  */
1994 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
1995 {
1996         int err;
1997         struct snd_ac97 *ac97;
1998         struct snd_card *card;
1999         char name[64];
2000         unsigned long end_time;
2001         unsigned int reg;
2002         const struct ac97_codec_id *pid;
2003         static struct snd_device_ops ops = {
2004                 .dev_free =     snd_ac97_dev_free,
2005                 .dev_register = snd_ac97_dev_register,
2006                 .dev_disconnect =       snd_ac97_dev_disconnect,
2007         };
2008
2009         if (rac97)
2010                 *rac97 = NULL;
2011         if (snd_BUG_ON(!bus || !template))
2012                 return -EINVAL;
2013         if (snd_BUG_ON(template->num >= 4))
2014                 return -EINVAL;
2015         if (bus->codec[template->num])
2016                 return -EBUSY;
2017
2018         card = bus->card;
2019         ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
2020         if (ac97 == NULL)
2021                 return -ENOMEM;
2022         ac97->private_data = template->private_data;
2023         ac97->private_free = template->private_free;
2024         ac97->bus = bus;
2025         ac97->pci = template->pci;
2026         ac97->num = template->num;
2027         ac97->addr = template->addr;
2028         ac97->scaps = template->scaps;
2029         ac97->res_table = template->res_table;
2030         bus->codec[ac97->num] = ac97;
2031         mutex_init(&ac97->reg_mutex);
2032         mutex_init(&ac97->page_mutex);
2033 #ifdef CONFIG_SND_AC97_POWER_SAVE
2034         INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
2035 #endif
2036
2037 #ifdef CONFIG_PCI
2038         if (ac97->pci) {
2039                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
2040                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
2041         }
2042 #endif
2043         if (bus->ops->reset) {
2044                 bus->ops->reset(ac97);
2045                 goto __access_ok;
2046         }
2047
2048         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2049         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2050         if (ac97->id && ac97->id != (unsigned int)-1) {
2051                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2052                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
2053                         goto __access_ok;
2054         }
2055
2056         /* reset to defaults */
2057         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2058                 snd_ac97_write(ac97, AC97_RESET, 0);
2059         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2060                 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2061         if (bus->ops->wait)
2062                 bus->ops->wait(ac97);
2063         else {
2064                 udelay(50);
2065                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
2066                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 1);
2067                 else {
2068                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 0);
2069                         if (err < 0)
2070                                 err = ac97_reset_wait(ac97,
2071                                                       msecs_to_jiffies(500), 1);
2072                 }
2073                 if (err < 0) {
2074                         snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
2075                         /* proceed anyway - it's often non-critical */
2076                 }
2077         }
2078       __access_ok:
2079         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2080         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2081         if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
2082             (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
2083                 snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
2084                 snd_ac97_free(ac97);
2085                 return -EIO;
2086         }
2087         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2088         if (pid)
2089                 ac97->flags |= pid->flags;
2090
2091         /* test for AC'97 */
2092         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2093                 /* test if we can write to the record gain volume register */
2094                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2095                 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
2096                         ac97->scaps |= AC97_SCAP_AUDIO;
2097         }
2098         if (ac97->scaps & AC97_SCAP_AUDIO) {
2099                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2100                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2101                 if (ac97->ext_id == 0xffff)     /* invalid combination */
2102                         ac97->ext_id = 0;
2103         }
2104
2105         /* test for MC'97 */
2106         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2107                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2108                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
2109                         ac97->ext_mid = 0;
2110                 if (ac97->ext_mid & 1)
2111                         ac97->scaps |= AC97_SCAP_MODEM;
2112         }
2113
2114         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2115                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2116                         snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
2117                 snd_ac97_free(ac97);
2118                 return -EACCES;
2119         }
2120
2121         if (bus->ops->reset) // FIXME: always skipping?
2122                 goto __ready_ok;
2123
2124         /* FIXME: add powerdown control */
2125         if (ac97_is_audio(ac97)) {
2126                 /* nothing should be in powerdown mode */
2127                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2128                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2129                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2130                         udelay(100);
2131                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2132                 }
2133                 /* nothing should be in powerdown mode */
2134                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2135                 end_time = jiffies + msecs_to_jiffies(5000);
2136                 do {
2137                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2138                                 goto __ready_ok;
2139                         schedule_timeout_uninterruptible(1);
2140                 } while (time_after_eq(end_time, jiffies));
2141                 snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
2142         }
2143
2144         /* FIXME: add powerdown control */
2145         if (ac97_is_modem(ac97)) {
2146                 unsigned char tmp;
2147
2148                 /* nothing should be in powerdown mode */
2149                 /* note: it's important to set the rate at first */
2150                 tmp = AC97_MEA_GPIO;
2151                 if (ac97->ext_mid & AC97_MEI_LINE1) {
2152                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2153                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2154                 }
2155                 if (ac97->ext_mid & AC97_MEI_LINE2) {
2156                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2157                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2158                 }
2159                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
2160                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2161                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2162                 }
2163                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2164                 udelay(100);
2165                 /* nothing should be in powerdown mode */
2166                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2167                 end_time = jiffies + msecs_to_jiffies(100);
2168                 do {
2169                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2170                                 goto __ready_ok;
2171                         schedule_timeout_uninterruptible(1);
2172                 } while (time_after_eq(end_time, jiffies));
2173                 snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2174         }
2175
2176       __ready_ok:
2177         if (ac97_is_audio(ac97))
2178                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2179         else
2180                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2181         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
2182                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2183                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2184                 if (! bus->no_vra)
2185                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2186                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2187         }
2188         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2189                 /* Intel controllers require double rate data to be put in
2190                  * slots 7+8, so let's hope the codec supports it. */
2191                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2192                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2193                         ac97->flags |= AC97_DOUBLE_RATE;
2194                 /* restore to slots 10/11 to avoid the confliction with surrounds */
2195                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
2196         }
2197         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2198                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2199                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2200         } else {
2201                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2202                 if (ac97->flags & AC97_DOUBLE_RATE)
2203                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2204                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2205         }
2206         if (ac97->ext_id & AC97_EI_SPDIF) {
2207                 /* codec specific code (patch) should override these values */
2208                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2209         }
2210         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2211                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2212         } else {
2213                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2214         }
2215         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2216                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2217                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2218         }
2219         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2220                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2221                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2222         }
2223         /* additional initializations */
2224         if (bus->ops->init)
2225                 bus->ops->init(ac97);
2226         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2227         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2228         if (! ac97->build_ops)
2229                 ac97->build_ops = &null_build_ops;
2230
2231         if (ac97_is_audio(ac97)) {
2232                 char comp[16];
2233                 if (card->mixername[0] == '\0') {
2234                         strcpy(card->mixername, name);
2235                 } else {
2236                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2237                                 strcat(card->mixername, ",");
2238                                 strcat(card->mixername, name);
2239                         }
2240                 }
2241                 sprintf(comp, "AC97a:%08x", ac97->id);
2242                 if ((err = snd_component_add(card, comp)) < 0) {
2243                         snd_ac97_free(ac97);
2244                         return err;
2245                 }
2246                 if (snd_ac97_mixer_build(ac97) < 0) {
2247                         snd_ac97_free(ac97);
2248                         return -ENOMEM;
2249                 }
2250         }
2251         if (ac97_is_modem(ac97)) {
2252                 char comp[16];
2253                 if (card->mixername[0] == '\0') {
2254                         strcpy(card->mixername, name);
2255                 } else {
2256                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2257                                 strcat(card->mixername, ",");
2258                                 strcat(card->mixername, name);
2259                         }
2260                 }
2261                 sprintf(comp, "AC97m:%08x", ac97->id);
2262                 if ((err = snd_component_add(card, comp)) < 0) {
2263                         snd_ac97_free(ac97);
2264                         return err;
2265                 }
2266                 if (snd_ac97_modem_build(card, ac97) < 0) {
2267                         snd_ac97_free(ac97);
2268                         return -ENOMEM;
2269                 }
2270         }
2271         if (ac97_is_audio(ac97))
2272                 update_power_regs(ac97);
2273         snd_ac97_proc_init(ac97);
2274         if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2275                 snd_ac97_free(ac97);
2276                 return err;
2277         }
2278         *rac97 = ac97;
2279         return 0;
2280 }
2281
2282 EXPORT_SYMBOL(snd_ac97_mixer);
2283
2284 /*
2285  * Power down the chip.
2286  *
2287  * MASTER and HEADPHONE registers are muted but the register cache values
2288  * are not changed, so that the values can be restored in snd_ac97_resume().
2289  */
2290 static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2291 {
2292         unsigned short power;
2293
2294         if (ac97_is_audio(ac97)) {
2295                 /* some codecs have stereo mute bits */
2296                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2297                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2298         }
2299
2300         /* surround, CLFE, mic powerdown */
2301         power = ac97->regs[AC97_EXTENDED_STATUS];
2302         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2303                 power |= AC97_EA_PRJ;
2304         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2305                 power |= AC97_EA_PRI | AC97_EA_PRK;
2306         power |= AC97_EA_PRL;
2307         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2308
2309         /* powerdown external amplifier */
2310         if (ac97->scaps & AC97_SCAP_INV_EAPD)
2311                 power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2312         else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2313                 power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2314         power |= AC97_PD_PR6;   /* Headphone amplifier powerdown */
2315         power |= AC97_PD_PR0 | AC97_PD_PR1;     /* ADC & DAC powerdown */
2316         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2317         udelay(100);
2318         power |= AC97_PD_PR2;   /* Analog Mixer powerdown (Vref on) */
2319         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2320         if (ac97_is_power_save_mode(ac97)) {
2321                 power |= AC97_PD_PR3;   /* Analog Mixer powerdown */
2322                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2323                 udelay(100);
2324                 /* AC-link powerdown, internal Clk disable */
2325                 /* FIXME: this may cause click noises on some boards */
2326                 power |= AC97_PD_PR4 | AC97_PD_PR5;
2327                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2328         }
2329 }
2330
2331
2332 struct ac97_power_reg {
2333         unsigned short reg;
2334         unsigned short power_reg;
2335         unsigned short mask;
2336 };
2337
2338 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2339
2340 static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2341         [PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2342         [PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2343         [PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2344                          AC97_EA_PRI | AC97_EA_PRK},
2345         [PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2346                          AC97_EA_PRJ},
2347         [PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2348                         AC97_EA_PRL},
2349 };
2350
2351 #ifdef CONFIG_SND_AC97_POWER_SAVE
2352 /**
2353  * snd_ac97_update_power - update the powerdown register
2354  * @ac97: the codec instance
2355  * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2356  * @powerup: non-zero when power up the part
2357  *
2358  * Update the AC97 powerdown register bits of the given part.
2359  */
2360 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2361 {
2362         int i;
2363
2364         if (! ac97)
2365                 return 0;
2366
2367         if (reg) {
2368                 /* SPDIF requires DAC power, too */
2369                 if (reg == AC97_SPDIF)
2370                         reg = AC97_PCM_FRONT_DAC_RATE;
2371                 for (i = 0; i < PWIDX_SIZE; i++) {
2372                         if (power_regs[i].reg == reg) {
2373                                 if (powerup)
2374                                         ac97->power_up |= (1 << i);
2375                                 else
2376                                         ac97->power_up &= ~(1 << i);
2377                                 break;
2378                         }
2379                 }
2380         }
2381
2382         if (ac97_is_power_save_mode(ac97) && !powerup)
2383                 /* adjust power-down bits after two seconds delay
2384                  * (for avoiding loud click noises for many (OSS) apps
2385                  *  that open/close frequently)
2386                  */
2387                 schedule_delayed_work(&ac97->power_work,
2388                                       msecs_to_jiffies(power_save * 1000));
2389         else {
2390                 cancel_delayed_work(&ac97->power_work);
2391                 update_power_regs(ac97);
2392         }
2393
2394         return 0;
2395 }
2396
2397 EXPORT_SYMBOL(snd_ac97_update_power);
2398 #endif /* CONFIG_SND_AC97_POWER_SAVE */
2399
2400 static void update_power_regs(struct snd_ac97 *ac97)
2401 {
2402         unsigned int power_up, bits;
2403         int i;
2404
2405         power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2406         power_up |= (1 << PWIDX_MIC);
2407         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2408                 power_up |= (1 << PWIDX_SURR);
2409         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2410                 power_up |= (1 << PWIDX_CLFE);
2411 #ifdef CONFIG_SND_AC97_POWER_SAVE
2412         if (ac97_is_power_save_mode(ac97))
2413                 power_up = ac97->power_up;
2414 #endif
2415         if (power_up) {
2416                 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2417                         /* needs power-up analog mix and vref */
2418                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2419                                              AC97_PD_PR3, 0);
2420                         msleep(1);
2421                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2422                                              AC97_PD_PR2, 0);
2423                 }
2424         }
2425         for (i = 0; i < PWIDX_SIZE; i++) {
2426                 if (power_up & (1 << i))
2427                         bits = 0;
2428                 else
2429                         bits = power_regs[i].mask;
2430                 snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2431                                      power_regs[i].mask, bits);
2432         }
2433         if (! power_up) {
2434                 if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2435                         /* power down analog mix and vref */
2436                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2437                                              AC97_PD_PR2, AC97_PD_PR2);
2438                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2439                                              AC97_PD_PR3, AC97_PD_PR3);
2440                 }
2441         }
2442 }
2443
2444
2445 #ifdef CONFIG_PM
2446 /**
2447  * snd_ac97_suspend - General suspend function for AC97 codec
2448  * @ac97: the ac97 instance
2449  *
2450  * Suspends the codec, power down the chip.
2451  */
2452 void snd_ac97_suspend(struct snd_ac97 *ac97)
2453 {
2454         if (! ac97)
2455                 return;
2456         if (ac97->build_ops->suspend)
2457                 ac97->build_ops->suspend(ac97);
2458 #ifdef CONFIG_SND_AC97_POWER_SAVE
2459         cancel_delayed_work(&ac97->power_work);
2460         flush_scheduled_work();
2461 #endif
2462         snd_ac97_powerdown(ac97);
2463 }
2464
2465 EXPORT_SYMBOL(snd_ac97_suspend);
2466
2467 /*
2468  * restore ac97 status
2469  */
2470 static void snd_ac97_restore_status(struct snd_ac97 *ac97)
2471 {
2472         int i;
2473
2474         for (i = 2; i < 0x7c ; i += 2) {
2475                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2476                         continue;
2477                 /* restore only accessible registers
2478                  * some chip (e.g. nm256) may hang up when unsupported registers
2479                  * are accessed..!
2480                  */
2481                 if (test_bit(i, ac97->reg_accessed)) {
2482                         snd_ac97_write(ac97, i, ac97->regs[i]);
2483                         snd_ac97_read(ac97, i);
2484                 }
2485         }
2486 }
2487
2488 /*
2489  * restore IEC958 status
2490  */
2491 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
2492 {
2493         if (ac97->ext_id & AC97_EI_SPDIF) {
2494                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2495                         /* reset spdif status */
2496                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2497                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2498                         if (ac97->flags & AC97_CS_SPDIF)
2499                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2500                         else
2501                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2502                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2503                 }
2504         }
2505 }
2506
2507 /**
2508  * snd_ac97_resume - General resume function for AC97 codec
2509  * @ac97: the ac97 instance
2510  *
2511  * Do the standard resume procedure, power up and restoring the
2512  * old register values.
2513  */
2514 void snd_ac97_resume(struct snd_ac97 *ac97)
2515 {
2516         unsigned long end_time;
2517
2518         if (! ac97)
2519                 return;
2520
2521         if (ac97->bus->ops->reset) {
2522                 ac97->bus->ops->reset(ac97);
2523                 goto  __reset_ready;
2524         }
2525
2526         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2527         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2528                 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2529                         snd_ac97_write(ac97, AC97_RESET, 0);
2530                 else if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2531                         snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2532                 udelay(100);
2533                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2534         }
2535         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2536
2537         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2538         if (ac97_is_audio(ac97)) {
2539                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2540                 end_time = jiffies + msecs_to_jiffies(100);
2541                 do {
2542                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2543                                 break;
2544                         schedule_timeout_uninterruptible(1);
2545                 } while (time_after_eq(end_time, jiffies));
2546                 /* FIXME: extra delay */
2547                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000);
2548                 if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000)
2549                         msleep(250);
2550         } else {
2551                 end_time = jiffies + msecs_to_jiffies(100);
2552                 do {
2553                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2554                         if (val != 0xffff && (val & 1) != 0)
2555                                 break;
2556                         schedule_timeout_uninterruptible(1);
2557                 } while (time_after_eq(end_time, jiffies));
2558         }
2559 __reset_ready:
2560
2561         if (ac97->bus->ops->init)
2562                 ac97->bus->ops->init(ac97);
2563
2564         if (ac97->build_ops->resume)
2565                 ac97->build_ops->resume(ac97);
2566         else {
2567                 snd_ac97_restore_status(ac97);
2568                 snd_ac97_restore_iec958(ac97);
2569         }
2570 }
2571
2572 EXPORT_SYMBOL(snd_ac97_resume);
2573 #endif
2574
2575
2576 /*
2577  * Hardware tuning
2578  */
2579 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2580 {
2581         if (suffix)
2582                 sprintf(dst, "%s %s", src, suffix);
2583         else
2584                 strcpy(dst, src);
2585 }
2586
2587 /* remove the control with the given name and optional suffix */
2588 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
2589                                const char *suffix)
2590 {
2591         struct snd_ctl_elem_id id;
2592         memset(&id, 0, sizeof(id));
2593         set_ctl_name(id.name, name, suffix);
2594         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2595         return snd_ctl_remove_id(ac97->bus->card, &id);
2596 }
2597
2598 static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
2599 {
2600         struct snd_ctl_elem_id sid;
2601         memset(&sid, 0, sizeof(sid));
2602         set_ctl_name(sid.name, name, suffix);
2603         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2604         return snd_ctl_find_id(ac97->bus->card, &sid);
2605 }
2606
2607 /* rename the control with the given name and optional suffix */
2608 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
2609                                const char *dst, const char *suffix)
2610 {
2611         struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
2612         if (kctl) {
2613                 set_ctl_name(kctl->id.name, dst, suffix);
2614                 return 0;
2615         }
2616         return -ENOENT;
2617 }
2618
2619 /* rename both Volume and Switch controls - don't check the return value */
2620 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
2621                                     const char *dst)
2622 {
2623         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2624         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2625 }
2626
2627 /* swap controls */
2628 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
2629                              const char *s2, const char *suffix)
2630 {
2631         struct snd_kcontrol *kctl1, *kctl2;
2632         kctl1 = ctl_find(ac97, s1, suffix);
2633         kctl2 = ctl_find(ac97, s2, suffix);
2634         if (kctl1 && kctl2) {
2635                 set_ctl_name(kctl1->id.name, s2, suffix);
2636                 set_ctl_name(kctl2->id.name, s1, suffix);
2637                 return 0;
2638         }
2639         return -ENOENT;
2640 }
2641
2642 #if 1
2643 /* bind hp and master controls instead of using only hp control */
2644 static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2645 {
2646         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2647         if (err > 0) {
2648                 unsigned long priv_saved = kcontrol->private_value;
2649                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2650                 snd_ac97_put_volsw(kcontrol, ucontrol);
2651                 kcontrol->private_value = priv_saved;
2652         }
2653         return err;
2654 }
2655
2656 /* ac97 tune: bind Master and Headphone controls */
2657 static int tune_hp_only(struct snd_ac97 *ac97)
2658 {
2659         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2660         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2661         if (! msw || ! mvol)
2662                 return -ENOENT;
2663         msw->put = bind_hp_volsw_put;
2664         mvol->put = bind_hp_volsw_put;
2665         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2666         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2667         return 0;
2668 }
2669
2670 #else
2671 /* ac97 tune: use Headphone control as master */
2672 static int tune_hp_only(struct snd_ac97 *ac97)
2673 {
2674         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2675                 return -ENOENT;
2676         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2677         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2678         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2679         return 0;
2680 }
2681 #endif
2682
2683 /* ac97 tune: swap Headphone and Master controls */
2684 static int tune_swap_hp(struct snd_ac97 *ac97)
2685 {
2686         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2687                 return -ENOENT;
2688         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2689         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2690         return 0;
2691 }
2692
2693 /* ac97 tune: swap Surround and Master controls */
2694 static int tune_swap_surround(struct snd_ac97 *ac97)
2695 {
2696         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2697             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2698                 return -ENOENT;
2699         return 0;
2700 }
2701
2702 /* ac97 tune: set up mic sharing for AD codecs */
2703 static int tune_ad_sharing(struct snd_ac97 *ac97)
2704 {
2705         unsigned short scfg;
2706         if ((ac97->id & 0xffffff00) != 0x41445300) {
2707                 snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2708                 return -EINVAL;
2709         }
2710         /* Turn on OMS bit to route microphone to back panel */
2711         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2712         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2713         return 0;
2714 }
2715
2716 static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
2717 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2718
2719 /* ac97 tune: set up ALC jack-select */
2720 static int tune_alc_jack(struct snd_ac97 *ac97)
2721 {
2722         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2723                 snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2724                 return -EINVAL;
2725         }
2726         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2727         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2728         if (ac97->id == AC97_ID_ALC658D)
2729                 snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
2730         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2731 }
2732
2733 /* ac97 tune: inversed EAPD bit */
2734 static int tune_inv_eapd(struct snd_ac97 *ac97)
2735 {
2736         struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
2737         if (! kctl)
2738                 return -ENOENT;
2739         set_inv_eapd(ac97, kctl);
2740         return 0;
2741 }
2742
2743 static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2744 {
2745         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2746         if (err > 0) {
2747                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2748                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2749                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2750                 unsigned short mask;
2751                 if (shift != rshift)
2752                         mask = 0x8080;
2753                 else
2754                         mask = 0x8000;
2755                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2756                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2757                                      0x8000 : 0);
2758         }
2759         return err;
2760 }
2761
2762 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2763 static int tune_mute_led(struct snd_ac97 *ac97)
2764 {
2765         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2766         if (! msw)
2767                 return -ENOENT;
2768         msw->put = master_mute_sw_put;
2769         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2770         snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2771         ac97->scaps |= AC97_SCAP_EAPD_LED;
2772         return 0;
2773 }
2774
2775 static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2776                                  struct snd_ctl_elem_value *ucontrol)
2777 {
2778         int err = bind_hp_volsw_put(kcontrol, ucontrol);
2779         if (err > 0) {
2780                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2781                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2782                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2783                 unsigned short mask;
2784                 if (shift != rshift)
2785                         mask = 0x8080;
2786                 else
2787                         mask = 0x8000;
2788                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2789                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2790                                      0x8000 : 0);
2791         }
2792         return err;
2793 }
2794
2795 static int tune_hp_mute_led(struct snd_ac97 *ac97)
2796 {
2797         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2798         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2799         if (! msw || ! mvol)
2800                 return -ENOENT;
2801         msw->put = hp_master_mute_sw_put;
2802         mvol->put = bind_hp_volsw_put;
2803         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2804         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2805         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2806         snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2807         return 0;
2808 }
2809
2810 struct quirk_table {
2811         const char *name;
2812         int (*func)(struct snd_ac97 *);
2813 };
2814
2815 static struct quirk_table applicable_quirks[] = {
2816         { "none", NULL },
2817         { "hp_only", tune_hp_only },
2818         { "swap_hp", tune_swap_hp },
2819         { "swap_surround", tune_swap_surround },
2820         { "ad_sharing", tune_ad_sharing },
2821         { "alc_jack", tune_alc_jack },
2822         { "inv_eapd", tune_inv_eapd },
2823         { "mute_led", tune_mute_led },
2824         { "hp_mute_led", tune_hp_mute_led },
2825 };
2826
2827 /* apply the quirk with the given type */
2828 static int apply_quirk(struct snd_ac97 *ac97, int type)
2829 {
2830         if (type <= 0)
2831                 return 0;
2832         else if (type >= ARRAY_SIZE(applicable_quirks))
2833                 return -EINVAL;
2834         if (applicable_quirks[type].func)
2835                 return applicable_quirks[type].func(ac97);
2836         return 0;
2837 }
2838
2839 /* apply the quirk with the given name */
2840 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
2841 {
2842         int i;
2843         struct quirk_table *q;
2844
2845         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2846                 q = &applicable_quirks[i];
2847                 if (q->name && ! strcmp(typestr, q->name))
2848                         return apply_quirk(ac97, i);
2849         }
2850         /* for compatibility, accept the numbers, too */
2851         if (*typestr >= '0' && *typestr <= '9')
2852                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2853         return -EINVAL;
2854 }
2855
2856 /**
2857  * snd_ac97_tune_hardware - tune up the hardware
2858  * @ac97: the ac97 instance
2859  * @quirk: quirk list
2860  * @override: explicit quirk value (overrides the list if non-NULL)
2861  *
2862  * Do some workaround for each pci device, such as renaming of the
2863  * headphone (true line-out) control as "Master".
2864  * The quirk-list must be terminated with a zero-filled entry.
2865  *
2866  * Returns zero if successful, or a negative error code on failure.
2867  */
2868
2869 int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
2870 {
2871         int result;
2872
2873         /* quirk overriden? */
2874         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2875                 result = apply_quirk_str(ac97, override);
2876                 if (result < 0)
2877                         snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2878                 return result;
2879         }
2880
2881         if (! quirk)
2882                 return -EINVAL;
2883
2884         for (; quirk->subvendor; quirk++) {
2885                 if (quirk->subvendor != ac97->subsystem_vendor)
2886                         continue;
2887                 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2888                     quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2889                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2890                                 continue;
2891                         snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2892                         result = apply_quirk(ac97, quirk->type);
2893                         if (result < 0)
2894                                 snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2895                         return result;
2896                 }
2897         }
2898         return 0;
2899 }
2900
2901 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2902
2903 /*
2904  *  INIT part
2905  */
2906
2907 static int __init alsa_ac97_init(void)
2908 {
2909         return 0;
2910 }
2911
2912 static void __exit alsa_ac97_exit(void)
2913 {
2914 }
2915
2916 module_init(alsa_ac97_init)
2917 module_exit(alsa_ac97_exit)