sound/pci/ac97/ac97_codec.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   4  *  Universal interface for Audio Codec '97
   5  *
   6  *  For more details look to AC '97 component specification revision 2.2
   7  *  by Intel Corporation (http://developer.intel.com).
   8  */
   9
  10 #include <linux/delay.h>
  11 #include <linux/init.h>
  12 #include <linux/slab.h>
  13 #include <linux/pci.h>
  14 #include <linux/module.h>
  15 #include <linux/mutex.h>
  16 #include <sound/core.h>
  17 #include <sound/pcm.h>
  18 #include <sound/tlv.h>
  19 #include <sound/ac97_codec.h>
  20 #include <sound/asoundef.h>
  21 #include <sound/initval.h>
  22 #include "ac97_id.h"
  23
  24 #include "ac97_patch.c"
  25
  26 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  27 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
  28 MODULE_LICENSE("GPL");
  29
  30 static bool enable_loopback;
  31
  32 module_param(enable_loopback, bool, 0444);
  33 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
  34
  35 #ifdef CONFIG_SND_AC97_POWER_SAVE
  36 static int power_save = CONFIG_SND_AC97_POWER_SAVE_DEFAULT;
  37 module_param(power_save, int, 0644);
  38 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
  39                  "(in second, 0 = disable).");
  40 #endif
  41 /*
  42
  43  */
  44
  45 struct ac97_codec_id {
  46         unsigned int id;
  47         unsigned int mask;
  48         const char *name;
  49         int (*patch)(struct snd_ac97 *ac97);
  50         int (*mpatch)(struct snd_ac97 *ac97);
  51         unsigned int flags;
  52 };
  53
  54 static const struct ac97_codec_id snd_ac97_codec_id_vendors[] = {
  55 { 0x41445300, 0xffffff00, "Analog Devices",     NULL,   NULL },
  56 { 0x414b4d00, 0xffffff00, "Asahi Kasei",        NULL,   NULL },
  57 { 0x414c4300, 0xffffff00, "Realtek",            NULL,   NULL },
  58 { 0x414c4700, 0xffffff00, "Realtek",            NULL,   NULL },
  59 /*
  60  * This is an _inofficial_ Aztech Labs entry
  61  * (value might differ from unknown official Aztech ID),
  62  * currently used by the AC97 emulation of the almost-AC97 PCI168 card.
  63  */
  64 { 0x415a5400, 0xffffff00, "Aztech Labs (emulated)",     NULL,   NULL },
  65 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL,  NULL },
  66 { 0x43525900, 0xffffff00, "Cirrus Logic",       NULL,   NULL },
  67 { 0x43585400, 0xffffff00, "Conexant",           NULL,   NULL },
  68 { 0x44543000, 0xffffff00, "Diamond Technology", NULL,   NULL },
  69 { 0x454d4300, 0xffffff00, "eMicro",             NULL,   NULL },
  70 { 0x45838300, 0xffffff00, "ESS Technology",     NULL,   NULL },
  71 { 0x48525300, 0xffffff00, "Intersil",           NULL,   NULL },
  72 { 0x49434500, 0xffffff00, "ICEnsemble",         NULL,   NULL },
  73 { 0x49544500, 0xffffff00, "ITE Tech.Inc",       NULL,   NULL },
  74 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
  75 { 0x50534300, 0xffffff00, "Philips",            NULL,   NULL },
  76 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL,   NULL },
  77 { 0x53544d00, 0xffffff00, "STMicroelectronics", NULL,   NULL },
  78 { 0x54524100, 0xffffff00, "TriTech",            NULL,   NULL },
  79 { 0x54584e00, 0xffffff00, "Texas Instruments",  NULL,   NULL },
  80 { 0x56494100, 0xffffff00, "VIA Technologies",   NULL,   NULL },
  81 { 0x57454300, 0xffffff00, "Winbond",            NULL,   NULL },
  82 { 0x574d4c00, 0xffffff00, "Wolfson",            NULL,   NULL },
  83 { 0x594d4800, 0xffffff00, "Yamaha",             NULL,   NULL },
  84 { 0x83847600, 0xffffff00, "SigmaTel",           NULL,   NULL },
  85 { 0,          0,          NULL,                 NULL,   NULL }
  86 };
  87
  88 static const struct ac97_codec_id snd_ac97_codec_ids[] = {
  89 { 0x41445303, 0xffffffff, "AD1819",             patch_ad1819,   NULL },
  90 { 0x41445340, 0xffffffff, "AD1881",             patch_ad1881,   NULL },
  91 { 0x41445348, 0xffffffff, "AD1881A",            patch_ad1881,   NULL },
  92 { 0x41445360, 0xffffffff, "AD1885",             patch_ad1885,   NULL },
  93 { 0x41445361, 0xffffffff, "AD1886",             patch_ad1886,   NULL },
  94 { 0x41445362, 0xffffffff, "AD1887",             patch_ad1881,   NULL },
  95 { 0x41445363, 0xffffffff, "AD1886A",            patch_ad1881,   NULL },
  96 { 0x41445368, 0xffffffff, "AD1888",             patch_ad1888,   NULL },
  97 { 0x41445370, 0xffffffff, "AD1980",             patch_ad1980,   NULL },
  98 { 0x41445372, 0xffffffff, "AD1981A",            patch_ad1981a,  NULL },
  99 { 0x41445374, 0xffffffff, "AD1981B",            patch_ad1981b,  NULL },
 100 { 0x41445375, 0xffffffff, "AD1985",             patch_ad1985,   NULL },
 101 { 0x41445378, 0xffffffff, "AD1986",             patch_ad1986,   NULL },
 102 { 0x414b4d00, 0xffffffff, "AK4540",             NULL,           NULL },
 103 { 0x414b4d01, 0xffffffff, "AK4542",             NULL,           NULL },
 104 { 0x414b4d02, 0xffffffff, "AK4543",             NULL,           NULL },
 105 { 0x414b4d06, 0xffffffff, "AK4544A",            NULL,           NULL },
 106 { 0x414b4d07, 0xffffffff, "AK4545",             NULL,           NULL },
 107 { 0x414c4300, 0xffffff00, "ALC100,100P",        NULL,           NULL },
 108 { 0x414c4710, 0xfffffff0, "ALC200,200P",        NULL,           NULL },
 109 { 0x414c4721, 0xffffffff, "ALC650D",            NULL,   NULL }, /* already patched */
 110 { 0x414c4722, 0xffffffff, "ALC650E",            NULL,   NULL }, /* already patched */
 111 { 0x414c4723, 0xffffffff, "ALC650F",            NULL,   NULL }, /* already patched */
 112 { 0x414c4720, 0xfffffff0, "ALC650",             patch_alc650,   NULL },
 113 { 0x414c4730, 0xffffffff, "ALC101",             NULL,           NULL },
 114 { 0x414c4740, 0xfffffff0, "ALC202",             NULL,           NULL },
 115 { 0x414c4750, 0xfffffff0, "ALC250",             NULL,           NULL },
 116 { 0x414c4760, 0xfffffff0, "ALC655",             patch_alc655,   NULL },
 117 { 0x414c4770, 0xfffffff0, "ALC203",             patch_alc203,   NULL },
 118 { 0x414c4781, 0xffffffff, "ALC658D",            NULL,   NULL }, /* already patched */
 119 { 0x414c4780, 0xfffffff0, "ALC658",             patch_alc655,   NULL },
 120 { 0x414c4790, 0xfffffff0, "ALC850",             patch_alc850,   NULL },
 121 { 0x415a5401, 0xffffffff, "AZF3328",            patch_aztech_azf3328,   NULL },
 122 { 0x434d4941, 0xffffffff, "CMI9738",            patch_cm9738,   NULL },
 123 { 0x434d4961, 0xffffffff, "CMI9739",            patch_cm9739,   NULL },
 124 { 0x434d4969, 0xffffffff, "CMI9780",            patch_cm9780,   NULL },
 125 { 0x434d4978, 0xffffffff, "CMI9761A",           patch_cm9761,   NULL },
 126 { 0x434d4982, 0xffffffff, "CMI9761B",           patch_cm9761,   NULL },
 127 { 0x434d4983, 0xffffffff, "CMI9761A+",          patch_cm9761,   NULL },
 128 { 0x43525900, 0xfffffff8, "CS4297",             NULL,           NULL },
 129 { 0x43525910, 0xfffffff8, "CS4297A",            patch_cirrus_spdif,     NULL },
 130 { 0x43525920, 0xfffffff8, "CS4298",             patch_cirrus_spdif,             NULL },
 131 { 0x43525928, 0xfffffff8, "CS4294",             NULL,           NULL },
 132 { 0x43525930, 0xfffffff8, "CS4299",             patch_cirrus_cs4299,    NULL },
 133 { 0x43525948, 0xfffffff8, "CS4201",             NULL,           NULL },
 134 { 0x43525958, 0xfffffff8, "CS4205",             patch_cirrus_spdif,     NULL },
 135 { 0x43525960, 0xfffffff8, "CS4291",             NULL,           NULL },
 136 { 0x43525970, 0xfffffff8, "CS4202",             NULL,           NULL },
 137 { 0x43585421, 0xffffffff, "HSD11246",           NULL,           NULL }, // SmartMC II
 138 { 0x43585428, 0xfffffff8, "Cx20468",            patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
 139 { 0x43585430, 0xffffffff, "Cx20468-31",         patch_conexant, NULL },
 140 { 0x43585431, 0xffffffff, "Cx20551",           patch_cx20551,  NULL },
 141 { 0x44543031, 0xfffffff0, "DT0398",             NULL,           NULL },
 142 { 0x454d4328, 0xffffffff, "EM28028",            NULL,           NULL },  // same as TR28028?
 143 { 0x45838308, 0xffffffff, "ESS1988",            NULL,           NULL },
 144 { 0x48525300, 0xffffff00, "HMP9701",            NULL,           NULL },
 145 { 0x49434501, 0xffffffff, "ICE1230",            NULL,           NULL },
 146 { 0x49434511, 0xffffffff, "ICE1232",            NULL,           NULL }, // alias VIA VT1611A?
 147 { 0x49434514, 0xffffffff, "ICE1232A",           NULL,           NULL },
 148 { 0x49434551, 0xffffffff, "VT1616",             patch_vt1616,   NULL },
 149 { 0x49434552, 0xffffffff, "VT1616i",            patch_vt1616,   NULL }, // VT1616 compatible (chipset integrated)
 150 { 0x49544520, 0xffffffff, "IT2226E",            NULL,           NULL },
 151 { 0x49544561, 0xffffffff, "IT2646E",            patch_it2646,   NULL },
 152 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL,           NULL }, // only guess --jk
 153 { 0x4e534331, 0xffffffff, "LM4549",             NULL,           NULL },
 154 { 0x4e534350, 0xffffffff, "LM4550",             patch_lm4550,   NULL }, // volume wrap fix
 155 { 0x50534304, 0xffffffff, "UCB1400",            patch_ucb1400,  NULL },
 156 { 0x53494c20, 0xffffffe0, "Si3036,8",           mpatch_si3036,  mpatch_si3036, AC97_MODEM_PATCH },
 157 { 0x53544d02, 0xffffffff, "ST7597",             NULL,           NULL },
 158 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
 159 { 0x54524103, 0xffffffff, "TR28023",            NULL,           NULL },
 160 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
 161 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
 162 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 163 { 0x54584e03, 0xffffffff, "TLV320AIC27",        NULL,           NULL },
 164 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
 165 { 0x56494120, 0xfffffff0, "VIA1613",            patch_vt1613,   NULL },
 166 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
 167 { 0x56494170, 0xffffffff, "VIA1617A",           patch_vt1617a,  NULL }, // modified VT1616 with S/PDIF
 168 { 0x56494182, 0xffffffff, "VIA1618",            patch_vt1618,   NULL },
 169 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
 170 { 0x574d4c00, 0xffffffff, "WM9701,WM9701A",     NULL,           NULL },
 171 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
 172 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
 173 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
 174 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
 175 { 0x574d4C12, 0xffffffff, "WM9711,WM9712,WM9715",       patch_wolfson11, NULL},
 176 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
 177 { 0x594d4800, 0xffffffff, "YMF743",             patch_yamaha_ymf743,    NULL },
 178 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
 179 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
 180 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
 181 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
 182 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
 183 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
 184 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
 185 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
 186 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
 187 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
 188 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
 189 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
 190 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
 191 { 0,          0,          NULL,                 NULL,           NULL }
 192 };
 193
 194
 195 static void update_power_regs(struct snd_ac97 *ac97);
 196 #ifdef CONFIG_SND_AC97_POWER_SAVE
 197 #define ac97_is_power_save_mode(ac97) \
 198         ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
 199 #else
 200 #define ac97_is_power_save_mode(ac97) 0
 201 #endif
 202
 203 #define ac97_err(ac97, fmt, args...)    \
 204         dev_err((ac97)->bus->card->dev, fmt, ##args)
 205 #define ac97_warn(ac97, fmt, args...)   \
 206         dev_warn((ac97)->bus->card->dev, fmt, ##args)
 207 #define ac97_dbg(ac97, fmt, args...)    \
 208         dev_dbg((ac97)->bus->card->dev, fmt, ##args)
 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  * Return: 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  * Return: 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  * Return: 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         return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
 453                                  e->mask, e->texts);
 454 }
 455
 456 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
 457                                     struct snd_ctl_elem_value *ucontrol)
 458 {
 459         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 460         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 461         unsigned short val, bitmask;
 462
 463         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 464                 ;
 465         val = snd_ac97_read_cache(ac97, e->reg);
 466         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
 467         if (e->shift_l != e->shift_r)
 468                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
 469
 470         return 0;
 471 }
 472
 473 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
 474                                     struct snd_ctl_elem_value *ucontrol)
 475 {
 476         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 477         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 478         unsigned short val;
 479         unsigned short mask, bitmask;
 480
 481         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 482                 ;
 483         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
 484                 return -EINVAL;
 485         val = ucontrol->value.enumerated.item[0] << e->shift_l;
 486         mask = (bitmask - 1) << e->shift_l;
 487         if (e->shift_l != e->shift_r) {
 488                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
 489                         return -EINVAL;
 490                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
 491                 mask |= (bitmask - 1) << e->shift_r;
 492         }
 493         return snd_ac97_update_bits(ac97, e->reg, mask, val);
 494 }
 495
 496 /* save/restore ac97 v2.3 paging */
 497 static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
 498 {
 499         int page_save = -1;
 500         if ((kcontrol->private_value & (1<<25)) &&
 501             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
 502             (reg >= 0x60 && reg < 0x70)) {
 503                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
 504                 mutex_lock(&ac97->page_mutex); /* lock paging */
 505                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
 506                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
 507         }
 508         return page_save;
 509 }
 510
 511 static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
 512 {
 513         if (page_save >= 0) {
 514                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
 515                 mutex_unlock(&ac97->page_mutex); /* unlock paging */
 516         }
 517 }
 518
 519 /* volume and switch controls */
 520 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
 521                                struct snd_ctl_elem_info *uinfo)
 522 {
 523         int mask = (kcontrol->private_value >> 16) & 0xff;
 524         int shift = (kcontrol->private_value >> 8) & 0x0f;
 525         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 526
 527         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 528         uinfo->count = shift == rshift ? 1 : 2;
 529         uinfo->value.integer.min = 0;
 530         uinfo->value.integer.max = mask;
 531         return 0;
 532 }
 533
 534 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
 535                               struct snd_ctl_elem_value *ucontrol)
 536 {
 537         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 538         int reg = kcontrol->private_value & 0xff;
 539         int shift = (kcontrol->private_value >> 8) & 0x0f;
 540         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 541         int mask = (kcontrol->private_value >> 16) & 0xff;
 542         int invert = (kcontrol->private_value >> 24) & 0x01;
 543         int page_save;
 544
 545         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 546         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
 547         if (shift != rshift)
 548                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
 549         if (invert) {
 550                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 551                 if (shift != rshift)
 552                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 553         }
 554         snd_ac97_page_restore(ac97, page_save);
 555         return 0;
 556 }
 557
 558 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
 559                               struct snd_ctl_elem_value *ucontrol)
 560 {
 561         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 562         int reg = kcontrol->private_value & 0xff;
 563         int shift = (kcontrol->private_value >> 8) & 0x0f;
 564         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 565         int mask = (kcontrol->private_value >> 16) & 0xff;
 566         int invert = (kcontrol->private_value >> 24) & 0x01;
 567         int err, page_save;
 568         unsigned short val, val2, val_mask;
 569
 570         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 571         val = (ucontrol->value.integer.value[0] & mask);
 572         if (invert)
 573                 val = mask - val;
 574         val_mask = mask << shift;
 575         val = val << shift;
 576         if (shift != rshift) {
 577                 val2 = (ucontrol->value.integer.value[1] & mask);
 578                 if (invert)
 579                         val2 = mask - val2;
 580                 val_mask |= mask << rshift;
 581                 val |= val2 << rshift;
 582         }
 583         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
 584         snd_ac97_page_restore(ac97, page_save);
 585 #ifdef CONFIG_SND_AC97_POWER_SAVE
 586         /* check analog mixer power-down */
 587         if ((val_mask & AC97_PD_EAPD) &&
 588             (kcontrol->private_value & (1<<30))) {
 589                 if (val & AC97_PD_EAPD)
 590                         ac97->power_up &= ~(1 << (reg>>1));
 591                 else
 592                         ac97->power_up |= 1 << (reg>>1);
 593                 update_power_regs(ac97);
 594         }
 595 #endif
 596         return err;
 597 }
 598
 599 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
 600 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
 601 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
 602 };
 603
 604 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
 605 AC97_SINGLE("Beep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 606 AC97_SINGLE("Beep Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 607 };
 608
 609 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
 610         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
 611
 612
 613 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
 614 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
 615 static const char* std_mix[] = {"Mix", "Mic"};
 616 static const char* std_mic[] = {"Mic1", "Mic2"};
 617
 618 static const struct ac97_enum std_enum[] = {
 619 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
 620 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
 621 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
 622 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
 623 };
 624
 625 static const struct snd_kcontrol_new snd_ac97_control_capture_src =
 626 AC97_ENUM("Capture Source", std_enum[0]);
 627
 628 static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
 629 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
 630
 631 static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
 632 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
 633 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
 634 };
 635
 636 enum {
 637         AC97_GENERAL_PCM_OUT = 0,
 638         AC97_GENERAL_STEREO_ENHANCEMENT,
 639         AC97_GENERAL_3D,
 640         AC97_GENERAL_LOUDNESS,
 641         AC97_GENERAL_MONO,
 642         AC97_GENERAL_MIC,
 643         AC97_GENERAL_LOOPBACK
 644 };
 645
 646 static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
 647 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
 648 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
 649 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 650 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
 651 AC97_ENUM("Mono Output Select", std_enum[2]),
 652 AC97_ENUM("Mic Select", std_enum[3]),
 653 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
 654 };
 655
 656 static const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
 657 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
 658 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
 659 };
 660
 661 static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
 662 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
 663 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
 664 };
 665
 666 static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
 667 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
 668 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
 669 };
 670
 671 static const struct snd_kcontrol_new snd_ac97_control_eapd =
 672 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
 673
 674 static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
 675 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
 676 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
 677 };
 678
 679 /* change the existing EAPD control as inverted */
 680 static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
 681 {
 682         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
 683         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
 684         ac97->scaps |= AC97_SCAP_INV_EAPD;
 685 }
 686
 687 static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 688 {
 689         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 690         uinfo->count = 1;
 691         return 0;
 692 }
 693
 694 static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 695 {
 696         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 697                                            IEC958_AES0_NONAUDIO |
 698                                            IEC958_AES0_CON_EMPHASIS_5015 |
 699                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 700         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 701                                            IEC958_AES1_CON_ORIGINAL;
 702         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 703         return 0;
 704 }
 705
 706 static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 707 {
 708         /* FIXME: AC'97 spec doesn't say which bits are used for what */
 709         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 710                                            IEC958_AES0_NONAUDIO |
 711                                            IEC958_AES0_PRO_FS |
 712                                            IEC958_AES0_PRO_EMPHASIS_5015;
 713         return 0;
 714 }
 715
 716 static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 717 {
 718         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 719
 720         mutex_lock(&ac97->reg_mutex);
 721         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
 722         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
 723         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
 724         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
 725         mutex_unlock(&ac97->reg_mutex);
 726         return 0;
 727 }
 728
 729 static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 730 {
 731         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 732         unsigned int new = 0;
 733         unsigned short val = 0;
 734         int change;
 735
 736         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
 737         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
 738                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
 739                 switch (new & IEC958_AES0_PRO_FS) {
 740                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
 741                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
 742                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
 743                 default:                       val |= 1<<12; break;
 744                 }
 745                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 746                         val |= 1<<3;
 747         } else {
 748                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
 749                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
 750                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
 751                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 752                         val |= 1<<3;
 753                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
 754                         val |= 1<<2;
 755                 val |= ((new >> 8) & 0xff) << 4;        // category + original
 756                 switch ((new >> 24) & 0xff) {
 757                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
 758                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
 759                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
 760                 default:                       val |= 1<<12; break;
 761                 }
 762         }
 763
 764         mutex_lock(&ac97->reg_mutex);
 765         change = ac97->spdif_status != new;
 766         ac97->spdif_status = new;
 767
 768         if (ac97->flags & AC97_CS_SPDIF) {
 769                 int x = (val >> 12) & 0x03;
 770                 switch (x) {
 771                 case 0: x = 1; break;  // 44.1
 772                 case 2: x = 0; break;  // 48.0
 773                 default: x = 0; break; // illegal.
 774                 }
 775                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
 776         } else if (ac97->flags & AC97_CX_SPDIF) {
 777                 int v;
 778                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
 779                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
 780                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
 781                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
 782                                                       v);
 783         } else if (ac97->id == AC97_ID_YMF743) {
 784                 change |= snd_ac97_update_bits_nolock(ac97,
 785                                                       AC97_YMF7X3_DIT_CTRL,
 786                                                       0xff38,
 787                                                       ((val << 4) & 0xff00) |
 788                                                       ((val << 2) & 0x0038));
 789         } else {
 790                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 791                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 792
 793                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
 794                 if (extst & AC97_EA_SPDIF) {
 795                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 796                 }
 797         }
 798         mutex_unlock(&ac97->reg_mutex);
 799
 800         return change;
 801 }
 802
 803 static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 804 {
 805         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 806         int reg = kcontrol->private_value & 0xff;
 807         int shift = (kcontrol->private_value >> 8) & 0x0f;
 808         int mask = (kcontrol->private_value >> 16) & 0xff;
 809         // int invert = (kcontrol->private_value >> 24) & 0xff;
 810         unsigned short value, old, new;
 811         int change;
 812
 813         value = (ucontrol->value.integer.value[0] & mask);
 814
 815         mutex_lock(&ac97->reg_mutex);
 816         mask <<= shift;
 817         value <<= shift;
 818         old = snd_ac97_read_cache(ac97, reg);
 819         new = (old & ~mask) | value;
 820         change = old != new;
 821
 822         if (change) {
 823                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 824                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 825                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 826                 if (extst & AC97_EA_SPDIF)
 827                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 828         }
 829         mutex_unlock(&ac97->reg_mutex);
 830         return change;
 831 }
 832
 833 static const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
 834         {
 835                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 836                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 837                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 838                 .info = snd_ac97_spdif_mask_info,
 839                 .get = snd_ac97_spdif_cmask_get,
 840         },
 841         {
 842                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 843                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 844                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 845                 .info = snd_ac97_spdif_mask_info,
 846                 .get = snd_ac97_spdif_pmask_get,
 847         },
 848         {
 849                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 850                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 851                 .info = snd_ac97_spdif_mask_info,
 852                 .get = snd_ac97_spdif_default_get,
 853                 .put = snd_ac97_spdif_default_put,
 854         },
 855
 856         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
 857         {
 858                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 859                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
 860                 .info = snd_ac97_info_volsw,
 861                 .get = snd_ac97_get_volsw,
 862                 .put = snd_ac97_put_spsa,
 863                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
 864         },
 865 };
 866
 867 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
 868 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
 869   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
 870   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
 871
 872 static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 873 {
 874         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 875         int mask = (kcontrol->private_value >> 16) & 0x0f;
 876         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 877         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 878
 879         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 880         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 881                 uinfo->count = 2;
 882         else
 883                 uinfo->count = 1;
 884         uinfo->value.integer.min = 0;
 885         uinfo->value.integer.max = mask;
 886         return 0;
 887 }
 888
 889 static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 890 {
 891         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 892         int codec = kcontrol->private_value & 3;
 893         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 894         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 895         int mask = (kcontrol->private_value >> 16) & 0xff;
 896
 897         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
 898         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 899                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
 900         return 0;
 901 }
 902
 903 static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 904 {
 905         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 906         int codec = kcontrol->private_value & 3;
 907         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 908         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 909         int mask = (kcontrol->private_value >> 16) & 0xff;
 910         unsigned short val, valmask;
 911
 912         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
 913         valmask = mask << lshift;
 914         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
 915                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
 916                 valmask |= mask << rshift;
 917         }
 918         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
 919 }
 920
 921 #define AD18XX_PCM_VOLUME(xname, codec) \
 922 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
 923   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
 924   .private_value = codec }
 925
 926 static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 927 {
 928         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 929         uinfo->count = 2;
 930         uinfo->value.integer.min = 0;
 931         uinfo->value.integer.max = 31;
 932         return 0;
 933 }
 934
 935 static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 936 {
 937         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 938         int codec = kcontrol->private_value & 3;
 939
 940         mutex_lock(&ac97->page_mutex);
 941         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
 942         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
 943         mutex_unlock(&ac97->page_mutex);
 944         return 0;
 945 }
 946
 947 static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 948 {
 949         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 950         int codec = kcontrol->private_value & 3;
 951         unsigned short val1, val2;
 952
 953         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
 954         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
 955         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
 956 }
 957
 958 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
 959 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
 960 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
 961 };
 962
 963 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
 964 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
 965 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
 966 };
 967
 968 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
 969 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
 970 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
 971 };
 972
 973 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
 974 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
 975 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
 976 };
 977
 978 /*
 979  *
 980  */
 981
 982 static void snd_ac97_powerdown(struct snd_ac97 *ac97);
 983
 984 static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
 985 {
 986         if (bus) {
 987                 snd_ac97_bus_proc_done(bus);
 988                 kfree(bus->pcms);
 989                 if (bus->private_free)
 990                         bus->private_free(bus);
 991                 kfree(bus);
 992         }
 993         return 0;
 994 }
 995
 996 static int snd_ac97_bus_dev_free(struct snd_device *device)
 997 {
 998         struct snd_ac97_bus *bus = device->device_data;
 999         return snd_ac97_bus_free(bus);
1000 }
1001
1002 static int snd_ac97_free(struct snd_ac97 *ac97)
1003 {
1004         if (ac97) {
1005 #ifdef CONFIG_SND_AC97_POWER_SAVE
1006                 cancel_delayed_work_sync(&ac97->power_work);
1007 #endif
1008                 snd_ac97_proc_done(ac97);
1009                 if (ac97->bus)
1010                         ac97->bus->codec[ac97->num] = NULL;
1011                 if (ac97->private_free)
1012                         ac97->private_free(ac97);
1013                 kfree(ac97);
1014         }
1015         return 0;
1016 }
1017
1018 static int snd_ac97_dev_free(struct snd_device *device)
1019 {
1020         struct snd_ac97 *ac97 = device->device_data;
1021         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1022         return snd_ac97_free(ac97);
1023 }
1024
1025 static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1026 {
1027         unsigned short val, mask = AC97_MUTE_MASK_MONO;
1028
1029         if (! snd_ac97_valid_reg(ac97, reg))
1030                 return 0;
1031
1032         switch (reg) {
1033         case AC97_MASTER_TONE:
1034                 return ac97->caps & AC97_BC_BASS_TREBLE ? 1 : 0;
1035         case AC97_HEADPHONE:
1036                 return ac97->caps & AC97_BC_HEADPHONE ? 1 : 0;
1037         case AC97_REC_GAIN_MIC:
1038                 return ac97->caps & AC97_BC_DEDICATED_MIC ? 1 : 0;
1039         case AC97_3D_CONTROL:
1040                 if (ac97->caps & AC97_BC_3D_TECH_ID_MASK) {
1041                         val = snd_ac97_read(ac97, reg);
1042                         /* if nonzero - fixed and we can't set it */
1043                         return val == 0;
1044                 }
1045                 return 0;
1046         case AC97_CENTER_LFE_MASTER:    /* center */
1047                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1048                         return 0;
1049                 break;
1050         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1051                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1052                         return 0;
1053                 reg = AC97_CENTER_LFE_MASTER;
1054                 mask = 0x0080;
1055                 break;
1056         case AC97_SURROUND_MASTER:
1057                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1058                         return 0;
1059                 break;
1060         }
1061
1062         val = snd_ac97_read(ac97, reg);
1063         if (!(val & mask)) {
1064                 /* nothing seems to be here - mute flag is not set */
1065                 /* try another test */
1066                 snd_ac97_write_cache(ac97, reg, val | mask);
1067                 val = snd_ac97_read(ac97, reg);
1068                 val = snd_ac97_read(ac97, reg);
1069                 if (!(val & mask))
1070                         return 0;       /* nothing here */
1071         }
1072         return 1;               /* success, useable */
1073 }
1074
1075 static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1076 {
1077         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1078         unsigned char max[3] = { 63, 31, 15 };
1079         int i;
1080
1081         /* first look up the static resolution table */
1082         if (ac97->res_table) {
1083                 const struct snd_ac97_res_table *tbl;
1084                 for (tbl = ac97->res_table; tbl->reg; tbl++) {
1085                         if (tbl->reg == reg) {
1086                                 *lo_max = tbl->bits & 0xff;
1087                                 *hi_max = (tbl->bits >> 8) & 0xff;
1088                                 return;
1089                         }
1090                 }
1091         }
1092
1093         *lo_max = *hi_max = 0;
1094         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1095                 unsigned short val;
1096                 snd_ac97_write(
1097                         ac97, reg,
1098                         AC97_MUTE_MASK_STEREO | cbit[i] | (cbit[i] << 8)
1099                 );
1100                 /* Do the read twice due to buffers on some ac97 codecs.
1101                  * e.g. The STAC9704 returns exactly what you wrote to the register
1102                  * if you read it immediately. This causes the detect routine to fail.
1103                  */
1104                 val = snd_ac97_read(ac97, reg);
1105                 val = snd_ac97_read(ac97, reg);
1106                 if (! *lo_max && (val & 0x7f) == cbit[i])
1107                         *lo_max = max[i];
1108                 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1109                         *hi_max = max[i];
1110                 if (*lo_max && *hi_max)
1111                         break;
1112         }
1113 }
1114
1115 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1116 {
1117         unsigned short mask, val, orig, res;
1118
1119         mask = 1 << bit;
1120         orig = snd_ac97_read(ac97, reg);
1121         val = orig ^ mask;
1122         snd_ac97_write(ac97, reg, val);
1123         res = snd_ac97_read(ac97, reg);
1124         snd_ac97_write_cache(ac97, reg, orig);
1125         return res == val;
1126 }
1127
1128 /* check the volume resolution of center/lfe */
1129 static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1130 {
1131         unsigned short val, val1;
1132
1133         *max = 63;
1134         val = AC97_MUTE_MASK_STEREO | (0x20 << shift);
1135         snd_ac97_write(ac97, reg, val);
1136         val1 = snd_ac97_read(ac97, reg);
1137         if (val != val1) {
1138                 *max = 31;
1139         }
1140         /* reset volume to zero */
1141         snd_ac97_write_cache(ac97, reg, AC97_MUTE_MASK_STEREO);
1142 }
1143
1144 static inline int printable(unsigned int x)
1145 {
1146         x &= 0xff;
1147         if (x < ' ' || x >= 0x71) {
1148                 if (x <= 0x89)
1149                         return x - 0x71 + 'A';
1150                 return '?';
1151         }
1152         return x;
1153 }
1154
1155 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
1156                                           struct snd_ac97 * ac97)
1157 {
1158         struct snd_kcontrol_new template;
1159         memcpy(&template, _template, sizeof(template));
1160         template.index = ac97->num;
1161         return snd_ctl_new1(&template, ac97);
1162 }
1163
1164 /*
1165  * create mute switch(es) for normal stereo controls
1166  */
1167 static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1168                                      int check_stereo, int check_amix,
1169                                      struct snd_ac97 *ac97)
1170 {
1171         struct snd_kcontrol *kctl;
1172         int err;
1173         unsigned short val, val1, mute_mask;
1174
1175         if (! snd_ac97_valid_reg(ac97, reg))
1176                 return 0;
1177
1178         mute_mask = AC97_MUTE_MASK_MONO;
1179         val = snd_ac97_read(ac97, reg);
1180         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1181                 /* check whether both mute bits work */
1182                 val1 = val | AC97_MUTE_MASK_STEREO;
1183                 snd_ac97_write(ac97, reg, val1);
1184                 if (val1 == snd_ac97_read(ac97, reg))
1185                         mute_mask = AC97_MUTE_MASK_STEREO;
1186         }
1187         if (mute_mask == AC97_MUTE_MASK_STEREO) {
1188                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1189                 if (check_amix)
1190                         tmp.private_value |= (1 << 30);
1191                 tmp.index = ac97->num;
1192                 kctl = snd_ctl_new1(&tmp, ac97);
1193         } else {
1194                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1195                 if (check_amix)
1196                         tmp.private_value |= (1 << 30);
1197                 tmp.index = ac97->num;
1198                 kctl = snd_ctl_new1(&tmp, ac97);
1199         }
1200         err = snd_ctl_add(card, kctl);
1201         if (err < 0)
1202                 return err;
1203         /* mute as default */
1204         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1205         return 0;
1206 }
1207
1208 /*
1209  * set dB information
1210  */
1211 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
1212 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
1213 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1214 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1215 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1216
1217 static const unsigned int *find_db_scale(unsigned int maxval)
1218 {
1219         switch (maxval) {
1220         case 0x0f: return db_scale_4bit;
1221         case 0x1f: return db_scale_5bit;
1222         case 0x3f: return db_scale_6bit;
1223         }
1224         return NULL;
1225 }
1226
1227 static void set_tlv_db_scale(struct snd_kcontrol *kctl, const unsigned int *tlv)
1228 {
1229         kctl->tlv.p = tlv;
1230         if (tlv)
1231                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1232 }
1233
1234 /*
1235  * create a volume for normal stereo/mono controls
1236  */
1237 static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1238                              unsigned int hi_max, struct snd_ac97 *ac97)
1239 {
1240         int err;
1241         struct snd_kcontrol *kctl;
1242
1243         if (! snd_ac97_valid_reg(ac97, reg))
1244                 return 0;
1245         if (hi_max) {
1246                 /* invert */
1247                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1248                 tmp.index = ac97->num;
1249                 kctl = snd_ctl_new1(&tmp, ac97);
1250         } else {
1251                 /* invert */
1252                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1253                 tmp.index = ac97->num;
1254                 kctl = snd_ctl_new1(&tmp, ac97);
1255         }
1256         if (!kctl)
1257                 return -ENOMEM;
1258         if (reg >= AC97_PHONE && reg <= AC97_PCM)
1259                 set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
1260         else
1261                 set_tlv_db_scale(kctl, find_db_scale(lo_max));
1262         err = snd_ctl_add(card, kctl);
1263         if (err < 0)
1264                 return err;
1265         snd_ac97_write_cache(
1266                 ac97, reg,
1267                 (snd_ac97_read(ac97, reg) & AC97_MUTE_MASK_STEREO)
1268                 | lo_max | (hi_max << 8)
1269         );
1270         return 0;
1271 }
1272
1273 /*
1274  * create a mute-switch and a volume for normal stereo/mono controls
1275  */
1276 static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1277                                     int reg, int check_stereo, int check_amix,
1278                                     struct snd_ac97 *ac97)
1279 {
1280         int err;
1281         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1282         unsigned char lo_max, hi_max;
1283
1284         if (! snd_ac97_valid_reg(ac97, reg))
1285                 return 0;
1286
1287         if (snd_ac97_try_bit(ac97, reg, 15)) {
1288                 sprintf(name, "%s Switch", pfx);
1289                 if ((err = snd_ac97_cmute_new_stereo(card, name, reg,
1290                                                      check_stereo, check_amix,
1291                                                      ac97)) < 0)
1292                         return err;
1293         }
1294         check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1295         if (lo_max) {
1296                 sprintf(name, "%s Volume", pfx);
1297                 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1298                         return err;
1299         }
1300         return 0;
1301 }
1302
1303 #define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1304         snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1305 #define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1306         snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1307
1308 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1309
1310 static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1311 {
1312         struct snd_card *card = ac97->bus->card;
1313         struct snd_kcontrol *kctl;
1314         int err;
1315         unsigned int idx;
1316         unsigned char max;
1317
1318         /* build master controls */
1319         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1320         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1321                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1322                         err = snd_ac97_cmute_new(card, "Master Playback Switch",
1323                                                  AC97_MASTER, 0, ac97);
1324                 else
1325                         err = snd_ac97_cmix_new(card, "Master Playback",
1326                                                 AC97_MASTER, 0, ac97);
1327                 if (err < 0)
1328                         return err;
1329         }
1330
1331         ac97->regs[AC97_CENTER_LFE_MASTER] = AC97_MUTE_MASK_STEREO;
1332
1333         /* build center controls */
1334         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1335                 && !(ac97->flags & AC97_AD_MULTI)) {
1336                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1337                         return err;
1338                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1339                         return err;
1340                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1341                 kctl->private_value &= ~(0xff << 16);
1342                 kctl->private_value |= (int)max << 16;
1343                 set_tlv_db_scale(kctl, find_db_scale(max));
1344                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1345         }
1346
1347         /* build LFE controls */
1348         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1349                 && !(ac97->flags & AC97_AD_MULTI)) {
1350                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1351                         return err;
1352                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1353                         return err;
1354                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1355                 kctl->private_value &= ~(0xff << 16);
1356                 kctl->private_value |= (int)max << 16;
1357                 set_tlv_db_scale(kctl, find_db_scale(max));
1358                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1359         }
1360
1361         /* build surround controls */
1362         if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1363                 && !(ac97->flags & AC97_AD_MULTI)) {
1364                 /* Surround Master (0x38) is with stereo mutes */
1365                 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1366                                                     AC97_SURROUND_MASTER, 1, 0,
1367                                                     ac97)) < 0)
1368                         return err;
1369         }
1370
1371         /* build headphone controls */
1372         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1373                 if ((err = snd_ac97_cmix_new(card, "Headphone Playback",
1374                                              AC97_HEADPHONE, 0, ac97)) < 0)
1375                         return err;
1376         }
1377
1378         /* build master mono controls */
1379         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1380                 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback",
1381                                              AC97_MASTER_MONO, 0, ac97)) < 0)
1382                         return err;
1383         }
1384
1385         /* build master tone controls */
1386         if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1387                 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1388                         for (idx = 0; idx < 2; idx++) {
1389                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1390                                         return err;
1391                                 if (ac97->id == AC97_ID_YMF743 ||
1392                                     ac97->id == AC97_ID_YMF753) {
1393                                         kctl->private_value &= ~(0xff << 16);
1394                                         kctl->private_value |= 7 << 16;
1395                                 }
1396                         }
1397                         snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1398                 }
1399         }
1400
1401         /* build Beep controls */
1402         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1403                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1404             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1405                 for (idx = 0; idx < 2; idx++)
1406                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1407                                 return err;
1408                 set_tlv_db_scale(kctl, db_scale_4bit);
1409                 snd_ac97_write_cache(
1410                         ac97,
1411                         AC97_PC_BEEP,
1412                         (snd_ac97_read(ac97, AC97_PC_BEEP)
1413                                 | AC97_MUTE_MASK_MONO | 0x001e)
1414                 );
1415         }
1416
1417         /* build Phone controls */
1418         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1419                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1420                         if ((err = snd_ac97_cmix_new(card, "Phone Playback",
1421                                                      AC97_PHONE, 1, ac97)) < 0)
1422                                 return err;
1423                 }
1424         }
1425
1426         /* build MIC controls */
1427         if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1428                 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1429                         if ((err = snd_ac97_cmix_new(card, "Mic Playback",
1430                                                      AC97_MIC, 1, ac97)) < 0)
1431                                 return err;
1432                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1433                                 return err;
1434                 }
1435         }
1436
1437         /* build Line controls */
1438         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1439                 if ((err = snd_ac97_cmix_new(card, "Line Playback",
1440                                              AC97_LINE, 1, ac97)) < 0)
1441                         return err;
1442         }
1443
1444         /* build CD controls */
1445         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1446                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1447                         if ((err = snd_ac97_cmix_new(card, "CD Playback",
1448                                                      AC97_CD, 1, ac97)) < 0)
1449                                 return err;
1450                 }
1451         }
1452
1453         /* build Video controls */
1454         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1455                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1456                         if ((err = snd_ac97_cmix_new(card, "Video Playback",
1457                                                      AC97_VIDEO, 1, ac97)) < 0)
1458                                 return err;
1459                 }
1460         }
1461
1462         /* build Aux controls */
1463         if (!(ac97->flags & AC97_HAS_NO_AUX)) {
1464                 if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1465                         if ((err = snd_ac97_cmix_new(card, "Aux Playback",
1466                                                      AC97_AUX, 1, ac97)) < 0)
1467                                 return err;
1468                 }
1469         }
1470
1471         /* build PCM controls */
1472         if (ac97->flags & AC97_AD_MULTI) {
1473                 unsigned short init_val;
1474                 if (ac97->flags & AC97_STEREO_MUTES)
1475                         init_val = 0x9f9f;
1476                 else
1477                         init_val = 0x9f1f;
1478                 for (idx = 0; idx < 2; idx++)
1479                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1480                                 return err;
1481                 set_tlv_db_scale(kctl, db_scale_5bit);
1482                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1483                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1484                         for (idx = 0; idx < 2; idx++)
1485                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1486                                         return err;
1487                         set_tlv_db_scale(kctl, db_scale_5bit);
1488                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1489                 }
1490                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1491                         for (idx = 0; idx < 2; idx++)
1492                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1493                                         return err;
1494                         set_tlv_db_scale(kctl, db_scale_5bit);
1495                         for (idx = 0; idx < 2; idx++)
1496                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1497                                         return err;
1498                         set_tlv_db_scale(kctl, db_scale_5bit);
1499                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1500                 }
1501                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1502         } else {
1503                 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1504                         if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1505                                 err = snd_ac97_cmute_new(card,
1506                                                          "PCM Playback Switch",
1507                                                          AC97_PCM, 0, ac97);
1508                         else
1509                                 err = snd_ac97_cmix_new(card, "PCM Playback",
1510                                                         AC97_PCM, 0, ac97);
1511                         if (err < 0)
1512                                 return err;
1513                 }
1514         }
1515
1516         /* build Capture controls */
1517         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1518                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1519                         return err;
1520                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1521                         err = snd_ac97_cmute_new(card, "Capture Switch",
1522                                                  AC97_REC_GAIN, 0, ac97);
1523                         if (err < 0)
1524                                 return err;
1525                 }
1526                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1527                         return err;
1528                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1529                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1530                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1531         }
1532         /* build MIC Capture controls */
1533         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1534                 for (idx = 0; idx < 2; idx++)
1535                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1536                                 return err;
1537                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1538                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1539         }
1540
1541         /* build PCM out path & mute control */
1542         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1543                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1544                         return err;
1545         }
1546
1547         /* build Simulated Stereo Enhancement control */
1548         if (ac97->caps & AC97_BC_SIM_STEREO) {
1549                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1550                         return err;
1551         }
1552
1553         /* build 3D Stereo Enhancement control */
1554         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1555                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1556                         return err;
1557         }
1558
1559         /* build Loudness control */
1560         if (ac97->caps & AC97_BC_LOUDNESS) {
1561                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1562                         return err;
1563         }
1564
1565         /* build Mono output select control */
1566         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1567                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1568                         return err;
1569         }
1570
1571         /* build Mic select control */
1572         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1573                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1574                         return err;
1575         }
1576
1577         /* build ADC/DAC loopback control */
1578         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1579                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1580                         return err;
1581         }
1582
1583         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1584
1585         /* build 3D controls */
1586         if (ac97->build_ops->build_3d) {
1587                 ac97->build_ops->build_3d(ac97);
1588         } else {
1589                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1590                         unsigned short val;
1591                         val = 0x0707;
1592                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1593                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1594                         val = val == 0x0606;
1595                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1596                                 return err;
1597                         if (val)
1598                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1599                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1600                                 return err;
1601                         if (val)
1602                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1603                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1604                 }
1605         }
1606
1607         /* build S/PDIF controls */
1608
1609         /* Hack for ASUS P5P800-VM, which does not indicate S/PDIF capability */
1610         if (ac97->subsystem_vendor == 0x1043 &&
1611             ac97->subsystem_device == 0x810f)
1612                 ac97->ext_id |= AC97_EI_SPDIF;
1613
1614         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1615                 if (ac97->build_ops->build_spdif) {
1616                         if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1617                                 return err;
1618                 } else {
1619                         for (idx = 0; idx < 5; idx++)
1620                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1621                                         return err;
1622                         if (ac97->build_ops->build_post_spdif) {
1623                                 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1624                                         return err;
1625                         }
1626                         /* set default PCM S/PDIF params */
1627                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1628                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1629                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1630                 }
1631                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1632         }
1633
1634         /* build chip specific controls */
1635         if (ac97->build_ops->build_specific)
1636                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1637                         return err;
1638
1639         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1640                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1641                 if (! kctl)
1642                         return -ENOMEM;
1643                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1644                         set_inv_eapd(ac97, kctl);
1645                 if ((err = snd_ctl_add(card, kctl)) < 0)
1646                         return err;
1647         }
1648
1649         return 0;
1650 }
1651
1652 static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1653 {
1654         int err, idx;
1655
1656         /*
1657         ac97_dbg(ac97, "AC97_GPIO_CFG = %x\n",
1658                snd_ac97_read(ac97,AC97_GPIO_CFG));
1659         */
1660         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1661         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1662         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1663         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1664         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1665
1666         /* build modem switches */
1667         for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1668                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1669                         return err;
1670
1671         /* build chip specific controls */
1672         if (ac97->build_ops->build_specific)
1673                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1674                         return err;
1675
1676         return 0;
1677 }
1678
1679 static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1680 {
1681         unsigned short val;
1682         unsigned int tmp;
1683
1684         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1685         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1686         if (shadow_reg)
1687                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1688         val = snd_ac97_read(ac97, reg);
1689         return val == (tmp & 0xffff);
1690 }
1691
1692 static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1693 {
1694         unsigned int result = 0;
1695         unsigned short saved;
1696
1697         if (ac97->bus->no_vra) {
1698                 *r_result = SNDRV_PCM_RATE_48000;
1699                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1700                     reg == AC97_PCM_FRONT_DAC_RATE)
1701                         *r_result |= SNDRV_PCM_RATE_96000;
1702                 return;
1703         }
1704
1705         saved = snd_ac97_read(ac97, reg);
1706         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1707                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1708                                      AC97_EA_DRA, 0);
1709         /* test a non-standard rate */
1710         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1711                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1712         /* let's try to obtain standard rates */
1713         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1714                 result |= SNDRV_PCM_RATE_8000;
1715         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1716                 result |= SNDRV_PCM_RATE_11025;
1717         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1718                 result |= SNDRV_PCM_RATE_16000;
1719         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1720                 result |= SNDRV_PCM_RATE_22050;
1721         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1722                 result |= SNDRV_PCM_RATE_32000;
1723         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1724                 result |= SNDRV_PCM_RATE_44100;
1725         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1726                 result |= SNDRV_PCM_RATE_48000;
1727         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1728             reg == AC97_PCM_FRONT_DAC_RATE) {
1729                 /* test standard double rates */
1730                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1731                                      AC97_EA_DRA, AC97_EA_DRA);
1732                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1733                         result |= SNDRV_PCM_RATE_64000;
1734                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1735                         result |= SNDRV_PCM_RATE_88200;
1736                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1737                         result |= SNDRV_PCM_RATE_96000;
1738                 /* some codecs don't support variable double rates */
1739                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1740                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1741                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1742                                      AC97_EA_DRA, 0);
1743         }
1744         /* restore the default value */
1745         snd_ac97_write_cache(ac97, reg, saved);
1746         if (shadow_reg)
1747                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1748         *r_result = result;
1749 }
1750
1751 /* check AC97_SPDIF register to accept which sample rates */
1752 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1753 {
1754         unsigned int result = 0;
1755         int i;
1756         static unsigned short ctl_bits[] = {
1757                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1758         };
1759         static unsigned int rate_bits[] = {
1760                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1761         };
1762
1763         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1764                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1765                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1766                         result |= rate_bits[i];
1767         }
1768         return result;
1769 }
1770
1771 /* look for the codec id table matching with the given id */
1772 static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1773                                                      unsigned int id)
1774 {
1775         const struct ac97_codec_id *pid;
1776
1777         for (pid = table; pid->id; pid++)
1778                 if (pid->id == (id & pid->mask))
1779                         return pid;
1780         return NULL;
1781 }
1782
1783 void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1784 {
1785         const struct ac97_codec_id *pid;
1786
1787         sprintf(name, "0x%x %c%c%c", id,
1788                 printable(id >> 24),
1789                 printable(id >> 16),
1790                 printable(id >> 8));
1791         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1792         if (! pid)
1793                 return;
1794
1795         strcpy(name, pid->name);
1796         if (ac97 && pid->patch) {
1797                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1798                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1799                         pid->patch(ac97);
1800         }
1801
1802         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1803         if (pid) {
1804                 strcat(name, " ");
1805                 strcat(name, pid->name);
1806                 if (pid->mask != 0xffffffff)
1807                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1808                 if (ac97 && pid->patch) {
1809                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1810                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1811                                 pid->patch(ac97);
1812                 }
1813         } else
1814                 sprintf(name + strlen(name), " id %x", id & 0xff);
1815 }
1816
1817 /**
1818  * snd_ac97_get_short_name - retrieve codec name
1819  * @ac97: the codec instance
1820  *
1821  * Return: The short identifying name of the codec.
1822  */
1823 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1824 {
1825         const struct ac97_codec_id *pid;
1826
1827         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1828                 if (pid->id == (ac97->id & pid->mask))
1829                         return pid->name;
1830         return "unknown codec";
1831 }
1832
1833 EXPORT_SYMBOL(snd_ac97_get_short_name);
1834
1835 /* wait for a while until registers are accessible after RESET
1836  * return 0 if ok, negative not ready
1837  */
1838 static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1839 {
1840         unsigned long end_time;
1841         unsigned short val;
1842
1843         end_time = jiffies + timeout;
1844         do {
1845
1846                 /* use preliminary reads to settle the communication */
1847                 snd_ac97_read(ac97, AC97_RESET);
1848                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1849                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1850                 /* modem? */
1851                 if (with_modem) {
1852                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1853                         if (val != 0xffff && (val & 1) != 0)
1854                                 return 0;
1855                 }
1856                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1857                         /* probably only Xbox issue - all registers are read as zero */
1858                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1859                         if (val != 0 && val != 0xffff)
1860                                 return 0;
1861                 } else {
1862                         /* because the PCM or MASTER volume registers can be modified,
1863                          * the REC_GAIN register is used for tests
1864                          */
1865                         /* test if we can write to the record gain volume register */
1866                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1867                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1868                                 return 0;
1869                 }
1870                 schedule_timeout_uninterruptible(1);
1871         } while (time_after_eq(end_time, jiffies));
1872         return -ENODEV;
1873 }
1874
1875 /**
1876  * snd_ac97_bus - create an AC97 bus component
1877  * @card: the card instance
1878  * @num: the bus number
1879  * @ops: the bus callbacks table
1880  * @private_data: private data pointer for the new instance
1881  * @rbus: the pointer to store the new AC97 bus instance.
1882  *
1883  * Creates an AC97 bus component.  An struct snd_ac97_bus instance is newly
1884  * allocated and initialized.
1885  *
1886  * The ops table must include valid callbacks (at least read and
1887  * write).  The other callbacks, wait and reset, are not mandatory.
1888  *
1889  * The clock is set to 48000.  If another clock is needed, set
1890  * ``(*rbus)->clock`` manually.
1891  *
1892  * The AC97 bus instance is registered as a low-level device, so you don't
1893  * have to release it manually.
1894  *
1895  * Return: Zero if successful, or a negative error code on failure.
1896  */
1897 int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1898                  void *private_data, struct snd_ac97_bus **rbus)
1899 {
1900         int err;
1901         struct snd_ac97_bus *bus;
1902         static struct snd_device_ops dev_ops = {
1903                 .dev_free =     snd_ac97_bus_dev_free,
1904         };
1905
1906         if (snd_BUG_ON(!card))
1907                 return -EINVAL;
1908         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1909         if (bus == NULL)
1910                 return -ENOMEM;
1911         bus->card = card;
1912         bus->num = num;
1913         bus->ops = ops;
1914         bus->private_data = private_data;
1915         bus->clock = 48000;
1916         spin_lock_init(&bus->bus_lock);
1917         snd_ac97_bus_proc_init(bus);
1918         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1919                 snd_ac97_bus_free(bus);
1920                 return err;
1921         }
1922         if (rbus)
1923                 *rbus = bus;
1924         return 0;
1925 }
1926
1927 EXPORT_SYMBOL(snd_ac97_bus);
1928
1929 /* stop no dev release warning */
1930 static void ac97_device_release(struct device * dev)
1931 {
1932 }
1933
1934 /* register ac97 codec to bus */
1935 static int snd_ac97_dev_register(struct snd_device *device)
1936 {
1937         struct snd_ac97 *ac97 = device->device_data;
1938         int err;
1939
1940         ac97->dev.bus = &ac97_bus_type;
1941         ac97->dev.parent = ac97->bus->card->dev;
1942         ac97->dev.release = ac97_device_release;
1943         dev_set_name(&ac97->dev, "%d-%d:%s",
1944                      ac97->bus->card->number, ac97->num,
1945                      snd_ac97_get_short_name(ac97));
1946         if ((err = device_register(&ac97->dev)) < 0) {
1947                 ac97_err(ac97, "Can't register ac97 bus\n");
1948                 ac97->dev.bus = NULL;
1949                 return err;
1950         }
1951         return 0;
1952 }
1953
1954 /* disconnect ac97 codec */
1955 static int snd_ac97_dev_disconnect(struct snd_device *device)
1956 {
1957         struct snd_ac97 *ac97 = device->device_data;
1958         if (ac97->dev.bus)
1959                 device_unregister(&ac97->dev);
1960         return 0;
1961 }
1962
1963 /* build_ops to do nothing */
1964 static const struct snd_ac97_build_ops null_build_ops;
1965
1966 #ifdef CONFIG_SND_AC97_POWER_SAVE
1967 static void do_update_power(struct work_struct *work)
1968 {
1969         update_power_regs(
1970                 container_of(work, struct snd_ac97, power_work.work));
1971 }
1972 #endif
1973
1974 /**
1975  * snd_ac97_mixer - create an Codec97 component
1976  * @bus: the AC97 bus which codec is attached to
1977  * @template: the template of ac97, including index, callbacks and
1978  *         the private data.
1979  * @rac97: the pointer to store the new ac97 instance.
1980  *
1981  * Creates an Codec97 component.  An struct snd_ac97 instance is newly
1982  * allocated and initialized from the template.  The codec
1983  * is then initialized by the standard procedure.
1984  *
1985  * The template must include the codec number (num) and address (addr),
1986  * and the private data (private_data).
1987  *
1988  * The ac97 instance is registered as a low-level device, so you don't
1989  * have to release it manually.
1990  *
1991  * Return: Zero if successful, or a negative error code on failure.
1992  */
1993 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
1994 {
1995         int err;
1996         struct snd_ac97 *ac97;
1997         struct snd_card *card;
1998         char name[64];
1999         unsigned long end_time;
2000         unsigned int reg;
2001         const struct ac97_codec_id *pid;
2002         static struct snd_device_ops ops = {
2003                 .dev_free =     snd_ac97_dev_free,
2004                 .dev_register = snd_ac97_dev_register,
2005                 .dev_disconnect =       snd_ac97_dev_disconnect,
2006         };
2007
2008         if (rac97)
2009                 *rac97 = NULL;
2010         if (snd_BUG_ON(!bus || !template))
2011                 return -EINVAL;
2012         if (snd_BUG_ON(template->num >= 4))
2013                 return -EINVAL;
2014         if (bus->codec[template->num])
2015                 return -EBUSY;
2016
2017         card = bus->card;
2018         ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
2019         if (ac97 == NULL)
2020                 return -ENOMEM;
2021         ac97->private_data = template->private_data;
2022         ac97->private_free = template->private_free;
2023         ac97->bus = bus;
2024         ac97->pci = template->pci;
2025         ac97->num = template->num;
2026         ac97->addr = template->addr;
2027         ac97->scaps = template->scaps;
2028         ac97->res_table = template->res_table;
2029         bus->codec[ac97->num] = ac97;
2030         mutex_init(&ac97->reg_mutex);
2031         mutex_init(&ac97->page_mutex);
2032 #ifdef CONFIG_SND_AC97_POWER_SAVE
2033         INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
2034 #endif
2035
2036 #ifdef CONFIG_PCI
2037         if (ac97->pci) {
2038                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
2039                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
2040         }
2041 #endif
2042         if (bus->ops->reset) {
2043                 bus->ops->reset(ac97);
2044                 goto __access_ok;
2045         }
2046
2047         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2048         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2049         if (ac97->id && ac97->id != (unsigned int)-1) {
2050                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2051                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
2052                         goto __access_ok;
2053         }
2054
2055         /* reset to defaults */
2056         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2057                 snd_ac97_write(ac97, AC97_RESET, 0);
2058         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2059                 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2060         if (bus->ops->wait)
2061                 bus->ops->wait(ac97);
2062         else {
2063                 udelay(50);
2064                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
2065                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 1);
2066                 else {
2067                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 0);
2068                         if (err < 0)
2069                                 err = ac97_reset_wait(ac97,
2070                                                       msecs_to_jiffies(500), 1);
2071                 }
2072                 if (err < 0) {
2073                         ac97_warn(ac97, "AC'97 %d does not respond - RESET\n",
2074                                  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                 ac97_err(ac97,
2084                          "AC'97 %d access is not valid [0x%x], removing mixer.\n",
2085                          ac97->num, ac97->id);
2086                 snd_ac97_free(ac97);
2087                 return -EIO;
2088         }
2089         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2090         if (pid)
2091                 ac97->flags |= pid->flags;
2092
2093         /* test for AC'97 */
2094         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2095                 /* test if we can write to the record gain volume register */
2096                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2097                 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
2098                         ac97->scaps |= AC97_SCAP_AUDIO;
2099         }
2100         if (ac97->scaps & AC97_SCAP_AUDIO) {
2101                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2102                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2103                 if (ac97->ext_id == 0xffff)     /* invalid combination */
2104                         ac97->ext_id = 0;
2105         }
2106
2107         /* test for MC'97 */
2108         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2109                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2110                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
2111                         ac97->ext_mid = 0;
2112                 if (ac97->ext_mid & 1)
2113                         ac97->scaps |= AC97_SCAP_MODEM;
2114         }
2115
2116         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2117                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2118                         ac97_err(ac97,
2119                                  "AC'97 %d access error (not audio or modem codec)\n",
2120                                  ac97->num);
2121                 snd_ac97_free(ac97);
2122                 return -EACCES;
2123         }
2124
2125         if (bus->ops->reset) // FIXME: always skipping?
2126                 goto __ready_ok;
2127
2128         /* FIXME: add powerdown control */
2129         if (ac97_is_audio(ac97)) {
2130                 /* nothing should be in powerdown mode */
2131                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2132                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2133                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2134                         udelay(100);
2135                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2136                 }
2137                 /* nothing should be in powerdown mode */
2138                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2139                 end_time = jiffies + msecs_to_jiffies(5000);
2140                 do {
2141                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2142                                 goto __ready_ok;
2143                         schedule_timeout_uninterruptible(1);
2144                 } while (time_after_eq(end_time, jiffies));
2145                 ac97_warn(ac97,
2146                           "AC'97 %d analog subsections not ready\n", ac97->num);
2147         }
2148
2149         /* FIXME: add powerdown control */
2150         if (ac97_is_modem(ac97)) {
2151                 unsigned char tmp;
2152
2153                 /* nothing should be in powerdown mode */
2154                 /* note: it's important to set the rate at first */
2155                 tmp = AC97_MEA_GPIO;
2156                 if (ac97->ext_mid & AC97_MEI_LINE1) {
2157                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2158                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2159                 }
2160                 if (ac97->ext_mid & AC97_MEI_LINE2) {
2161                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2162                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2163                 }
2164                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
2165                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2166                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2167                 }
2168                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2169                 udelay(100);
2170                 /* nothing should be in powerdown mode */
2171                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2172                 end_time = jiffies + msecs_to_jiffies(100);
2173                 do {
2174                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2175                                 goto __ready_ok;
2176                         schedule_timeout_uninterruptible(1);
2177                 } while (time_after_eq(end_time, jiffies));
2178                 ac97_warn(ac97,
2179                           "MC'97 %d converters and GPIO not ready (0x%x)\n",
2180                           ac97->num,
2181                           snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2182         }
2183
2184       __ready_ok:
2185         if (ac97_is_audio(ac97))
2186                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2187         else
2188                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2189         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
2190                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2191                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2192                 if (! bus->no_vra)
2193                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2194                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2195         }
2196         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2197                 /* Intel controllers require double rate data to be put in
2198                  * slots 7+8, so let's hope the codec supports it. */
2199                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2200                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2201                         ac97->flags |= AC97_DOUBLE_RATE;
2202                 /* restore to slots 10/11 to avoid the confliction with surrounds */
2203                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
2204         }
2205         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2206                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2207                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2208         } else {
2209                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2210                 if (ac97->flags & AC97_DOUBLE_RATE)
2211                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2212                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2213         }
2214         if (ac97->ext_id & AC97_EI_SPDIF) {
2215                 /* codec specific code (patch) should override these values */
2216                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2217         }
2218         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2219                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2220         } else {
2221                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2222         }
2223         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2224                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2225                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2226         }
2227         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2228                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2229                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2230         }
2231         /* additional initializations */
2232         if (bus->ops->init)
2233                 bus->ops->init(ac97);
2234         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2235         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2236         if (! ac97->build_ops)
2237                 ac97->build_ops = &null_build_ops;
2238
2239         if (ac97_is_audio(ac97)) {
2240                 char comp[16];
2241                 if (card->mixername[0] == '\0') {
2242                         strcpy(card->mixername, name);
2243                 } else {
2244                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2245                                 strcat(card->mixername, ",");
2246                                 strcat(card->mixername, name);
2247                         }
2248                 }
2249                 sprintf(comp, "AC97a:%08x", ac97->id);
2250                 if ((err = snd_component_add(card, comp)) < 0) {
2251                         snd_ac97_free(ac97);
2252                         return err;
2253                 }
2254                 if (snd_ac97_mixer_build(ac97) < 0) {
2255                         snd_ac97_free(ac97);
2256                         return -ENOMEM;
2257                 }
2258         }
2259         if (ac97_is_modem(ac97)) {
2260                 char comp[16];
2261                 if (card->mixername[0] == '\0') {
2262                         strcpy(card->mixername, name);
2263                 } else {
2264                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2265                                 strcat(card->mixername, ",");
2266                                 strcat(card->mixername, name);
2267                         }
2268                 }
2269                 sprintf(comp, "AC97m:%08x", ac97->id);
2270                 if ((err = snd_component_add(card, comp)) < 0) {
2271                         snd_ac97_free(ac97);
2272                         return err;
2273                 }
2274                 if (snd_ac97_modem_build(card, ac97) < 0) {
2275                         snd_ac97_free(ac97);
2276                         return -ENOMEM;
2277                 }
2278         }
2279         if (ac97_is_audio(ac97))
2280                 update_power_regs(ac97);
2281         snd_ac97_proc_init(ac97);
2282         if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2283                 snd_ac97_free(ac97);
2284                 return err;
2285         }
2286         *rac97 = ac97;
2287         return 0;
2288 }
2289
2290 EXPORT_SYMBOL(snd_ac97_mixer);
2291
2292 /*
2293  * Power down the chip.
2294  *
2295  * MASTER and HEADPHONE registers are muted but the register cache values
2296  * are not changed, so that the values can be restored in snd_ac97_resume().
2297  */
2298 static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2299 {
2300         unsigned short power;
2301
2302         if (ac97_is_audio(ac97)) {
2303                 /* some codecs have stereo mute bits */
2304                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2305                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2306         }
2307
2308         /* surround, CLFE, mic powerdown */
2309         power = ac97->regs[AC97_EXTENDED_STATUS];
2310         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2311                 power |= AC97_EA_PRJ;
2312         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2313                 power |= AC97_EA_PRI | AC97_EA_PRK;
2314         power |= AC97_EA_PRL;
2315         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2316
2317         /* powerdown external amplifier */
2318         if (ac97->scaps & AC97_SCAP_INV_EAPD)
2319                 power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2320         else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2321                 power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2322         power |= AC97_PD_PR6;   /* Headphone amplifier powerdown */
2323         power |= AC97_PD_PR0 | AC97_PD_PR1;     /* ADC & DAC powerdown */
2324         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2325         udelay(100);
2326         power |= AC97_PD_PR2;   /* Analog Mixer powerdown (Vref on) */
2327         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2328         if (ac97_is_power_save_mode(ac97)) {
2329                 power |= AC97_PD_PR3;   /* Analog Mixer powerdown */
2330                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2331                 udelay(100);
2332                 /* AC-link powerdown, internal Clk disable */
2333                 /* FIXME: this may cause click noises on some boards */
2334                 power |= AC97_PD_PR4 | AC97_PD_PR5;
2335                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2336         }
2337 }
2338
2339
2340 struct ac97_power_reg {
2341         unsigned short reg;
2342         unsigned short power_reg;
2343         unsigned short mask;
2344 };
2345
2346 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2347
2348 static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2349         [PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2350         [PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2351         [PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2352                          AC97_EA_PRI | AC97_EA_PRK},
2353         [PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2354                          AC97_EA_PRJ},
2355         [PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2356                         AC97_EA_PRL},
2357 };
2358
2359 #ifdef CONFIG_SND_AC97_POWER_SAVE
2360 /**
2361  * snd_ac97_update_power - update the powerdown register
2362  * @ac97: the codec instance
2363  * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2364  * @powerup: non-zero when power up the part
2365  *
2366  * Update the AC97 powerdown register bits of the given part.
2367  *
2368  * Return: Zero.
2369  */
2370 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2371 {
2372         int i;
2373
2374         if (! ac97)
2375                 return 0;
2376
2377         if (reg) {
2378                 /* SPDIF requires DAC power, too */
2379                 if (reg == AC97_SPDIF)
2380                         reg = AC97_PCM_FRONT_DAC_RATE;
2381                 for (i = 0; i < PWIDX_SIZE; i++) {
2382                         if (power_regs[i].reg == reg) {
2383                                 if (powerup)
2384                                         ac97->power_up |= (1 << i);
2385                                 else
2386                                         ac97->power_up &= ~(1 << i);
2387                                 break;
2388                         }
2389                 }
2390         }
2391
2392         if (ac97_is_power_save_mode(ac97) && !powerup)
2393                 /* adjust power-down bits after two seconds delay
2394                  * (for avoiding loud click noises for many (OSS) apps
2395                  *  that open/close frequently)
2396                  */
2397                 schedule_delayed_work(&ac97->power_work,
2398                                       msecs_to_jiffies(power_save * 1000));
2399         else {
2400                 cancel_delayed_work(&ac97->power_work);
2401                 update_power_regs(ac97);
2402         }
2403
2404         return 0;
2405 }
2406
2407 EXPORT_SYMBOL(snd_ac97_update_power);
2408 #endif /* CONFIG_SND_AC97_POWER_SAVE */
2409
2410 static void update_power_regs(struct snd_ac97 *ac97)
2411 {
2412         unsigned int power_up, bits;
2413         int i;
2414
2415         power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2416         power_up |= (1 << PWIDX_MIC);
2417         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2418                 power_up |= (1 << PWIDX_SURR);
2419         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2420                 power_up |= (1 << PWIDX_CLFE);
2421 #ifdef CONFIG_SND_AC97_POWER_SAVE
2422         if (ac97_is_power_save_mode(ac97))
2423                 power_up = ac97->power_up;
2424 #endif
2425         if (power_up) {
2426                 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2427                         /* needs power-up analog mix and vref */
2428                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2429                                              AC97_PD_PR3, 0);
2430                         msleep(1);
2431                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2432                                              AC97_PD_PR2, 0);
2433                 }
2434         }
2435         for (i = 0; i < PWIDX_SIZE; i++) {
2436                 if (power_up & (1 << i))
2437                         bits = 0;
2438                 else
2439                         bits = power_regs[i].mask;
2440                 snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2441                                      power_regs[i].mask, bits);
2442         }
2443         if (! power_up) {
2444                 if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2445                         /* power down analog mix and vref */
2446                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2447                                              AC97_PD_PR2, AC97_PD_PR2);
2448                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2449                                              AC97_PD_PR3, AC97_PD_PR3);
2450                 }
2451         }
2452 }
2453
2454
2455 #ifdef CONFIG_PM
2456 /**
2457  * snd_ac97_suspend - General suspend function for AC97 codec
2458  * @ac97: the ac97 instance
2459  *
2460  * Suspends the codec, power down the chip.
2461  */
2462 void snd_ac97_suspend(struct snd_ac97 *ac97)
2463 {
2464         if (! ac97)
2465                 return;
2466         if (ac97->build_ops->suspend)
2467                 ac97->build_ops->suspend(ac97);
2468 #ifdef CONFIG_SND_AC97_POWER_SAVE
2469         cancel_delayed_work_sync(&ac97->power_work);
2470 #endif
2471         snd_ac97_powerdown(ac97);
2472 }
2473
2474 EXPORT_SYMBOL(snd_ac97_suspend);
2475
2476 /*
2477  * restore ac97 status
2478  */
2479 static void snd_ac97_restore_status(struct snd_ac97 *ac97)
2480 {
2481         int i;
2482
2483         for (i = 2; i < 0x7c ; i += 2) {
2484                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2485                         continue;
2486                 /* restore only accessible registers
2487                  * some chip (e.g. nm256) may hang up when unsupported registers
2488                  * are accessed..!
2489                  */
2490                 if (test_bit(i, ac97->reg_accessed)) {
2491                         snd_ac97_write(ac97, i, ac97->regs[i]);
2492                         snd_ac97_read(ac97, i);
2493                 }
2494         }
2495 }
2496
2497 /*
2498  * restore IEC958 status
2499  */
2500 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
2501 {
2502         if (ac97->ext_id & AC97_EI_SPDIF) {
2503                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2504                         /* reset spdif status */
2505                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2506                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2507                         if (ac97->flags & AC97_CS_SPDIF)
2508                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2509                         else
2510                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2511                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2512                 }
2513         }
2514 }
2515
2516 /**
2517  * snd_ac97_resume - General resume function for AC97 codec
2518  * @ac97: the ac97 instance
2519  *
2520  * Do the standard resume procedure, power up and restoring the
2521  * old register values.
2522  */
2523 void snd_ac97_resume(struct snd_ac97 *ac97)
2524 {
2525         unsigned long end_time;
2526
2527         if (! ac97)
2528                 return;
2529
2530         if (ac97->bus->ops->reset) {
2531                 ac97->bus->ops->reset(ac97);
2532                 goto  __reset_ready;
2533         }
2534
2535         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2536         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2537                 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2538                         snd_ac97_write(ac97, AC97_RESET, 0);
2539                 else if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2540                         snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2541                 udelay(100);
2542                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2543         }
2544         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2545
2546         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2547         if (ac97_is_audio(ac97)) {
2548                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2549                 end_time = jiffies + msecs_to_jiffies(100);
2550                 do {
2551                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2552                                 break;
2553                         schedule_timeout_uninterruptible(1);
2554                 } while (time_after_eq(end_time, jiffies));
2555                 /* FIXME: extra delay */
2556                 ac97->bus->ops->write(ac97, AC97_MASTER, AC97_MUTE_MASK_MONO);
2557                 if (snd_ac97_read(ac97, AC97_MASTER) != AC97_MUTE_MASK_MONO)
2558                         msleep(250);
2559         } else {
2560                 end_time = jiffies + msecs_to_jiffies(100);
2561                 do {
2562                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2563                         if (val != 0xffff && (val & 1) != 0)
2564                                 break;
2565                         schedule_timeout_uninterruptible(1);
2566                 } while (time_after_eq(end_time, jiffies));
2567         }
2568 __reset_ready:
2569
2570         if (ac97->bus->ops->init)
2571                 ac97->bus->ops->init(ac97);
2572
2573         if (ac97->build_ops->resume)
2574                 ac97->build_ops->resume(ac97);
2575         else {
2576                 snd_ac97_restore_status(ac97);
2577                 snd_ac97_restore_iec958(ac97);
2578         }
2579 }
2580
2581 EXPORT_SYMBOL(snd_ac97_resume);
2582 #endif
2583
2584
2585 /*
2586  * Hardware tuning
2587  */
2588 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2589 {
2590         if (suffix)
2591                 sprintf(dst, "%s %s", src, suffix);
2592         else
2593                 strcpy(dst, src);
2594 }
2595
2596 /* remove the control with the given name and optional suffix */
2597 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
2598                                const char *suffix)
2599 {
2600         struct snd_ctl_elem_id id;
2601         memset(&id, 0, sizeof(id));
2602         set_ctl_name(id.name, name, suffix);
2603         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2604         return snd_ctl_remove_id(ac97->bus->card, &id);
2605 }
2606
2607 static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
2608 {
2609         struct snd_ctl_elem_id sid;
2610         memset(&sid, 0, sizeof(sid));
2611         set_ctl_name(sid.name, name, suffix);
2612         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2613         return snd_ctl_find_id(ac97->bus->card, &sid);
2614 }
2615
2616 /* rename the control with the given name and optional suffix */
2617 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
2618                                const char *dst, const char *suffix)
2619 {
2620         struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
2621         if (kctl) {
2622                 set_ctl_name(kctl->id.name, dst, suffix);
2623                 return 0;
2624         }
2625         return -ENOENT;
2626 }
2627
2628 /* rename both Volume and Switch controls - don't check the return value */
2629 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
2630                                     const char *dst)
2631 {
2632         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2633         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2634 }
2635
2636 /* swap controls */
2637 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
2638                              const char *s2, const char *suffix)
2639 {
2640         struct snd_kcontrol *kctl1, *kctl2;
2641         kctl1 = ctl_find(ac97, s1, suffix);
2642         kctl2 = ctl_find(ac97, s2, suffix);
2643         if (kctl1 && kctl2) {
2644                 set_ctl_name(kctl1->id.name, s2, suffix);
2645                 set_ctl_name(kctl2->id.name, s1, suffix);
2646                 return 0;
2647         }
2648         return -ENOENT;
2649 }
2650
2651 #if 1
2652 /* bind hp and master controls instead of using only hp control */
2653 static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2654 {
2655         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2656         if (err > 0) {
2657                 unsigned long priv_saved = kcontrol->private_value;
2658                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2659                 snd_ac97_put_volsw(kcontrol, ucontrol);
2660                 kcontrol->private_value = priv_saved;
2661         }
2662         return err;
2663 }
2664
2665 /* ac97 tune: bind Master and Headphone controls */
2666 static int tune_hp_only(struct snd_ac97 *ac97)
2667 {
2668         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2669         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2670         if (! msw || ! mvol)
2671                 return -ENOENT;
2672         msw->put = bind_hp_volsw_put;
2673         mvol->put = bind_hp_volsw_put;
2674         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2675         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2676         return 0;
2677 }
2678
2679 #else
2680 /* ac97 tune: use Headphone control as master */
2681 static int tune_hp_only(struct snd_ac97 *ac97)
2682 {
2683         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2684                 return -ENOENT;
2685         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2686         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2687         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2688         return 0;
2689 }
2690 #endif
2691
2692 /* ac97 tune: swap Headphone and Master controls */
2693 static int tune_swap_hp(struct snd_ac97 *ac97)
2694 {
2695         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2696                 return -ENOENT;
2697         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2698         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2699         return 0;
2700 }
2701
2702 /* ac97 tune: swap Surround and Master controls */
2703 static int tune_swap_surround(struct snd_ac97 *ac97)
2704 {
2705         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2706             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2707                 return -ENOENT;
2708         return 0;
2709 }
2710
2711 /* ac97 tune: set up mic sharing for AD codecs */
2712 static int tune_ad_sharing(struct snd_ac97 *ac97)
2713 {
2714         unsigned short scfg;
2715         if ((ac97->id & 0xffffff00) != 0x41445300) {
2716                 ac97_err(ac97, "ac97_quirk AD_SHARING is only for AD codecs\n");
2717                 return -EINVAL;
2718         }
2719         /* Turn on OMS bit to route microphone to back panel */
2720         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2721         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2722         return 0;
2723 }
2724
2725 static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
2726 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2727
2728 /* ac97 tune: set up ALC jack-select */
2729 static int tune_alc_jack(struct snd_ac97 *ac97)
2730 {
2731         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2732                 ac97_err(ac97,
2733                          "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2734                 return -EINVAL;
2735         }
2736         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2737         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2738         if (ac97->id == AC97_ID_ALC658D)
2739                 snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
2740         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2741 }
2742
2743 /* ac97 tune: inversed EAPD bit */
2744 static int tune_inv_eapd(struct snd_ac97 *ac97)
2745 {
2746         struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
2747         if (! kctl)
2748                 return -ENOENT;
2749         set_inv_eapd(ac97, kctl);
2750         return 0;
2751 }
2752
2753 static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2754 {
2755         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2756         if (err > 0) {
2757                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2758                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2759                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2760                 unsigned short mask;
2761                 if (shift != rshift)
2762                         mask = AC97_MUTE_MASK_STEREO;
2763                 else
2764                         mask = AC97_MUTE_MASK_MONO;
2765                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2766                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2767                                      AC97_PD_EAPD : 0);
2768         }
2769         return err;
2770 }
2771
2772 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2773 static int tune_mute_led(struct snd_ac97 *ac97)
2774 {
2775         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2776         if (! msw)
2777                 return -ENOENT;
2778         msw->put = master_mute_sw_put;
2779         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2780         snd_ac97_update_bits(
2781                 ac97, AC97_POWERDOWN,
2782                 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2783         );
2784         ac97->scaps |= AC97_SCAP_EAPD_LED;
2785         return 0;
2786 }
2787
2788 static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2789                                  struct snd_ctl_elem_value *ucontrol)
2790 {
2791         int err = bind_hp_volsw_put(kcontrol, ucontrol);
2792         if (err > 0) {
2793                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2794                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2795                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2796                 unsigned short mask;
2797                 if (shift != rshift)
2798                         mask = AC97_MUTE_MASK_STEREO;
2799                 else
2800                         mask = AC97_MUTE_MASK_MONO;
2801                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2802                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2803                                      AC97_PD_EAPD : 0);
2804         }
2805         return err;
2806 }
2807
2808 static int tune_hp_mute_led(struct snd_ac97 *ac97)
2809 {
2810         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2811         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2812         if (! msw || ! mvol)
2813                 return -ENOENT;
2814         msw->put = hp_master_mute_sw_put;
2815         mvol->put = bind_hp_volsw_put;
2816         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2817         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2818         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2819         snd_ac97_update_bits(
2820                 ac97, AC97_POWERDOWN,
2821                 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2822         );
2823         return 0;
2824 }
2825
2826 struct quirk_table {
2827         const char *name;
2828         int (*func)(struct snd_ac97 *);
2829 };
2830
2831 static struct quirk_table applicable_quirks[] = {
2832         { "none", NULL },
2833         { "hp_only", tune_hp_only },
2834         { "swap_hp", tune_swap_hp },
2835         { "swap_surround", tune_swap_surround },
2836         { "ad_sharing", tune_ad_sharing },
2837         { "alc_jack", tune_alc_jack },
2838         { "inv_eapd", tune_inv_eapd },
2839         { "mute_led", tune_mute_led },
2840         { "hp_mute_led", tune_hp_mute_led },
2841 };
2842
2843 /* apply the quirk with the given type */
2844 static int apply_quirk(struct snd_ac97 *ac97, int type)
2845 {
2846         if (type <= 0)
2847                 return 0;
2848         else if (type >= ARRAY_SIZE(applicable_quirks))
2849                 return -EINVAL;
2850         if (applicable_quirks[type].func)
2851                 return applicable_quirks[type].func(ac97);
2852         return 0;
2853 }
2854
2855 /* apply the quirk with the given name */
2856 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
2857 {
2858         int i;
2859         struct quirk_table *q;
2860
2861         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2862                 q = &applicable_quirks[i];
2863                 if (q->name && ! strcmp(typestr, q->name))
2864                         return apply_quirk(ac97, i);
2865         }
2866         /* for compatibility, accept the numbers, too */
2867         if (*typestr >= '0' && *typestr <= '9')
2868                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2869         return -EINVAL;
2870 }
2871
2872 /**
2873  * snd_ac97_tune_hardware - tune up the hardware
2874  * @ac97: the ac97 instance
2875  * @quirk: quirk list
2876  * @override: explicit quirk value (overrides the list if non-NULL)
2877  *
2878  * Do some workaround for each pci device, such as renaming of the
2879  * headphone (true line-out) control as "Master".
2880  * The quirk-list must be terminated with a zero-filled entry.
2881  *
2882  * Return: Zero if successful, or a negative error code on failure.
2883  */
2884
2885 int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
2886                            const struct ac97_quirk *quirk, const char *override)
2887 {
2888         int result;
2889
2890         /* quirk overriden? */
2891         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2892                 result = apply_quirk_str(ac97, override);
2893                 if (result < 0)
2894                         ac97_err(ac97, "applying quirk type %s failed (%d)\n",
2895                                  override, result);
2896                 return result;
2897         }
2898
2899         if (! quirk)
2900                 return -EINVAL;
2901
2902         for (; quirk->subvendor; quirk++) {
2903                 if (quirk->subvendor != ac97->subsystem_vendor)
2904                         continue;
2905                 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2906                     quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2907                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2908                                 continue;
2909                         ac97_dbg(ac97, "ac97 quirk for %s (%04x:%04x)\n",
2910                                  quirk->name, ac97->subsystem_vendor,
2911                                  ac97->subsystem_device);
2912                         result = apply_quirk(ac97, quirk->type);
2913                         if (result < 0)
2914                                 ac97_err(ac97,
2915                                          "applying quirk type %d for %s failed (%d)\n",
2916                                          quirk->type, quirk->name, result);
2917                         return result;
2918                 }
2919         }
2920         return 0;
2921 }
2922
2923 EXPORT_SYMBOL(snd_ac97_tune_hardware);