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 { 0x53494c20, 0xffffffe0, "Si3036,8",           mpatch_si3036,  mpatch_si3036, AC97_MODEM_PATCH },
 156 { 0x53544d02, 0xffffffff, "ST7597",             NULL,           NULL },
 157 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
 158 { 0x54524103, 0xffffffff, "TR28023",            NULL,           NULL },
 159 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
 160 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
 161 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 162 { 0x54584e03, 0xffffffff, "TLV320AIC27",        NULL,           NULL },
 163 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
 164 { 0x56494120, 0xfffffff0, "VIA1613",            patch_vt1613,   NULL },
 165 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
 166 { 0x56494170, 0xffffffff, "VIA1617A",           patch_vt1617a,  NULL }, // modified VT1616 with S/PDIF
 167 { 0x56494182, 0xffffffff, "VIA1618",            patch_vt1618,   NULL },
 168 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
 169 { 0x574d4c00, 0xffffffff, "WM9701,WM9701A",     NULL,           NULL },
 170 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
 171 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
 172 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
 173 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
 174 { 0x574d4C12, 0xffffffff, "WM9711,WM9712,WM9715",       patch_wolfson11, NULL},
 175 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
 176 { 0x594d4800, 0xffffffff, "YMF743",             patch_yamaha_ymf743,    NULL },
 177 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
 178 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
 179 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
 180 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
 181 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
 182 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
 183 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
 184 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
 185 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
 186 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
 187 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
 188 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
 189 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
 190 { 0,          0,          NULL,                 NULL,           NULL }
 191 };
 192
 193
 194 static void update_power_regs(struct snd_ac97 *ac97);
 195 #ifdef CONFIG_SND_AC97_POWER_SAVE
 196 #define ac97_is_power_save_mode(ac97) \
 197         ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
 198 #else
 199 #define ac97_is_power_save_mode(ac97) 0
 200 #endif
 201
 202 #define ac97_err(ac97, fmt, args...)    \
 203         dev_err((ac97)->bus->card->dev, fmt, ##args)
 204 #define ac97_warn(ac97, fmt, args...)   \
 205         dev_warn((ac97)->bus->card->dev, fmt, ##args)
 206 #define ac97_dbg(ac97, fmt, args...)    \
 207         dev_dbg((ac97)->bus->card->dev, fmt, ##args)
 208
 209 /*
 210  *  I/O routines
 211  */
 212
 213 static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
 214 {
 215         /* filter some registers for buggy codecs */
 216         switch (ac97->id) {
 217         case AC97_ID_ST_AC97_ID4:
 218                 if (reg == 0x08)
 219                         return 0;
 220                 fallthrough;
 221         case AC97_ID_ST7597:
 222                 if (reg == 0x22 || reg == 0x7a)
 223                         return 1;
 224                 fallthrough;
 225         case AC97_ID_AK4540:
 226         case AC97_ID_AK4542:
 227                 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
 228                         return 1;
 229                 return 0;
 230         case AC97_ID_AD1819:    /* AD1819 */
 231         case AC97_ID_AD1881:    /* AD1881 */
 232         case AC97_ID_AD1881A:   /* AD1881A */
 233                 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
 234                         return 0;
 235                 return 1;
 236         case AC97_ID_AD1885:    /* AD1885 */
 237         case AC97_ID_AD1886:    /* AD1886 */
 238         case AC97_ID_AD1886A:   /* AD1886A - !!verify!! --jk */
 239         case AC97_ID_AD1887:    /* AD1887 - !!verify!! --jk */
 240                 if (reg == 0x5a)
 241                         return 1;
 242                 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
 243                         return 0;
 244                 return 1;
 245         case AC97_ID_STAC9700:
 246         case AC97_ID_STAC9704:
 247         case AC97_ID_STAC9705:
 248         case AC97_ID_STAC9708:
 249         case AC97_ID_STAC9721:
 250         case AC97_ID_STAC9744:
 251         case AC97_ID_STAC9756:
 252                 if (reg <= 0x3a || reg >= 0x5a)
 253                         return 1;
 254                 return 0;
 255         }
 256         return 1;
 257 }
 258
 259 /**
 260  * snd_ac97_write - write a value on the given register
 261  * @ac97: the ac97 instance
 262  * @reg: the register to change
 263  * @value: the value to set
 264  *
 265  * Writes a value on the given register.  This will invoke the write
 266  * callback directly after the register check.
 267  * This function doesn't change the register cache unlike
 268  * #snd_ca97_write_cache(), so use this only when you don't want to
 269  * reflect the change to the suspend/resume state.
 270  */
 271 void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 272 {
 273         if (!snd_ac97_valid_reg(ac97, reg))
 274                 return;
 275         if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
 276                 /* Fix H/W bug of ALC100/100P */
 277                 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
 278                         ac97->bus->ops->write(ac97, AC97_RESET, 0);     /* reset audio codec */
 279         }
 280         ac97->bus->ops->write(ac97, reg, value);
 281 }
 282
 283 EXPORT_SYMBOL(snd_ac97_write);
 284
 285 /**
 286  * snd_ac97_read - read a value from the given register
 287  *
 288  * @ac97: the ac97 instance
 289  * @reg: the register to read
 290  *
 291  * Reads a value from the given register.  This will invoke the read
 292  * callback directly after the register check.
 293  *
 294  * Return: The read value.
 295  */
 296 unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 297 {
 298         if (!snd_ac97_valid_reg(ac97, reg))
 299                 return 0;
 300         return ac97->bus->ops->read(ac97, reg);
 301 }
 302
 303 /* read a register - return the cached value if already read */
 304 static inline unsigned short snd_ac97_read_cache(struct snd_ac97 *ac97, unsigned short reg)
 305 {
 306         if (! test_bit(reg, ac97->reg_accessed)) {
 307                 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
 308                 // set_bit(reg, ac97->reg_accessed);
 309         }
 310         return ac97->regs[reg];
 311 }
 312
 313 EXPORT_SYMBOL(snd_ac97_read);
 314
 315 /**
 316  * snd_ac97_write_cache - write a value on the given register and update the cache
 317  * @ac97: the ac97 instance
 318  * @reg: the register to change
 319  * @value: the value to set
 320  *
 321  * Writes a value on the given register and updates the register
 322  * cache.  The cached values are used for the cached-read and the
 323  * suspend/resume.
 324  */
 325 void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 326 {
 327         if (!snd_ac97_valid_reg(ac97, reg))
 328                 return;
 329         mutex_lock(&ac97->reg_mutex);
 330         ac97->regs[reg] = value;
 331         ac97->bus->ops->write(ac97, reg, value);
 332         set_bit(reg, ac97->reg_accessed);
 333         mutex_unlock(&ac97->reg_mutex);
 334 }
 335
 336 EXPORT_SYMBOL(snd_ac97_write_cache);
 337
 338 /**
 339  * snd_ac97_update - update the value on the given register
 340  * @ac97: the ac97 instance
 341  * @reg: the register to change
 342  * @value: the value to set
 343  *
 344  * Compares the value with the register cache and updates the value
 345  * only when the value is changed.
 346  *
 347  * Return: 1 if the value is changed, 0 if no change, or a negative
 348  * code on failure.
 349  */
 350 int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 351 {
 352         int change;
 353
 354         if (!snd_ac97_valid_reg(ac97, reg))
 355                 return -EINVAL;
 356         mutex_lock(&ac97->reg_mutex);
 357         change = ac97->regs[reg] != value;
 358         if (change) {
 359                 ac97->regs[reg] = value;
 360                 ac97->bus->ops->write(ac97, reg, value);
 361         }
 362         set_bit(reg, ac97->reg_accessed);
 363         mutex_unlock(&ac97->reg_mutex);
 364         return change;
 365 }
 366
 367 EXPORT_SYMBOL(snd_ac97_update);
 368
 369 /**
 370  * snd_ac97_update_bits - update the bits on the given register
 371  * @ac97: the ac97 instance
 372  * @reg: the register to change
 373  * @mask: the bit-mask to change
 374  * @value: the value to set
 375  *
 376  * Updates the masked-bits on the given register only when the value
 377  * is changed.
 378  *
 379  * Return: 1 if the bits are changed, 0 if no change, or a negative
 380  * code on failure.
 381  */
 382 int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value)
 383 {
 384         int change;
 385
 386         if (!snd_ac97_valid_reg(ac97, reg))
 387                 return -EINVAL;
 388         mutex_lock(&ac97->reg_mutex);
 389         change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 390         mutex_unlock(&ac97->reg_mutex);
 391         return change;
 392 }
 393
 394 EXPORT_SYMBOL(snd_ac97_update_bits);
 395
 396 /* no lock version - see snd_ac97_update_bits() */
 397 int snd_ac97_update_bits_nolock(struct snd_ac97 *ac97, unsigned short reg,
 398                                 unsigned short mask, unsigned short value)
 399 {
 400         int change;
 401         unsigned short old, new;
 402
 403         old = snd_ac97_read_cache(ac97, reg);
 404         new = (old & ~mask) | (value & mask);
 405         change = old != new;
 406         if (change) {
 407                 ac97->regs[reg] = new;
 408                 ac97->bus->ops->write(ac97, reg, new);
 409         }
 410         set_bit(reg, ac97->reg_accessed);
 411         return change;
 412 }
 413
 414 static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, unsigned short mask, unsigned short value)
 415 {
 416         int change;
 417         unsigned short old, new, cfg;
 418
 419         mutex_lock(&ac97->page_mutex);
 420         old = ac97->spec.ad18xx.pcmreg[codec];
 421         new = (old & ~mask) | (value & mask);
 422         change = old != new;
 423         if (change) {
 424                 mutex_lock(&ac97->reg_mutex);
 425                 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
 426                 ac97->spec.ad18xx.pcmreg[codec] = new;
 427                 /* select single codec */
 428                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 429                                  (cfg & ~0x7000) |
 430                                  ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
 431                 /* update PCM bits */
 432                 ac97->bus->ops->write(ac97, AC97_PCM, new);
 433                 /* select all codecs */
 434                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 435                                  cfg | 0x7000);
 436                 mutex_unlock(&ac97->reg_mutex);
 437         }
 438         mutex_unlock(&ac97->page_mutex);
 439         return change;
 440 }
 441
 442 /*
 443  * Controls
 444  */
 445
 446 static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
 447                                      struct snd_ctl_elem_info *uinfo)
 448 {
 449         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 450
 451         return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
 452                                  e->mask, e->texts);
 453 }
 454
 455 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
 456                                     struct snd_ctl_elem_value *ucontrol)
 457 {
 458         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 459         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 460         unsigned short val, bitmask;
 461
 462         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 463                 ;
 464         val = snd_ac97_read_cache(ac97, e->reg);
 465         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
 466         if (e->shift_l != e->shift_r)
 467                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
 468
 469         return 0;
 470 }
 471
 472 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
 473                                     struct snd_ctl_elem_value *ucontrol)
 474 {
 475         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 476         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 477         unsigned short val;
 478         unsigned short mask, bitmask;
 479
 480         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 481                 ;
 482         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
 483                 return -EINVAL;
 484         val = ucontrol->value.enumerated.item[0] << e->shift_l;
 485         mask = (bitmask - 1) << e->shift_l;
 486         if (e->shift_l != e->shift_r) {
 487                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
 488                         return -EINVAL;
 489                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
 490                 mask |= (bitmask - 1) << e->shift_r;
 491         }
 492         return snd_ac97_update_bits(ac97, e->reg, mask, val);
 493 }
 494
 495 /* save/restore ac97 v2.3 paging */
 496 static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
 497 {
 498         int page_save = -1;
 499         if ((kcontrol->private_value & (1<<25)) &&
 500             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
 501             (reg >= 0x60 && reg < 0x70)) {
 502                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
 503                 mutex_lock(&ac97->page_mutex); /* lock paging */
 504                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
 505                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
 506         }
 507         return page_save;
 508 }
 509
 510 static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
 511 {
 512         if (page_save >= 0) {
 513                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
 514                 mutex_unlock(&ac97->page_mutex); /* unlock paging */
 515         }
 516 }
 517
 518 /* volume and switch controls */
 519 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
 520                                struct snd_ctl_elem_info *uinfo)
 521 {
 522         int mask = (kcontrol->private_value >> 16) & 0xff;
 523         int shift = (kcontrol->private_value >> 8) & 0x0f;
 524         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 525
 526         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 527         uinfo->count = shift == rshift ? 1 : 2;
 528         uinfo->value.integer.min = 0;
 529         uinfo->value.integer.max = mask;
 530         return 0;
 531 }
 532
 533 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
 534                               struct snd_ctl_elem_value *ucontrol)
 535 {
 536         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 537         int reg = kcontrol->private_value & 0xff;
 538         int shift = (kcontrol->private_value >> 8) & 0x0f;
 539         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 540         int mask = (kcontrol->private_value >> 16) & 0xff;
 541         int invert = (kcontrol->private_value >> 24) & 0x01;
 542         int page_save;
 543
 544         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 545         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
 546         if (shift != rshift)
 547                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
 548         if (invert) {
 549                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 550                 if (shift != rshift)
 551                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 552         }
 553         snd_ac97_page_restore(ac97, page_save);
 554         return 0;
 555 }
 556
 557 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
 558                               struct snd_ctl_elem_value *ucontrol)
 559 {
 560         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 561         int reg = kcontrol->private_value & 0xff;
 562         int shift = (kcontrol->private_value >> 8) & 0x0f;
 563         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 564         int mask = (kcontrol->private_value >> 16) & 0xff;
 565         int invert = (kcontrol->private_value >> 24) & 0x01;
 566         int err, page_save;
 567         unsigned short val, val2, val_mask;
 568
 569         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 570         val = (ucontrol->value.integer.value[0] & mask);
 571         if (invert)
 572                 val = mask - val;
 573         val_mask = mask << shift;
 574         val = val << shift;
 575         if (shift != rshift) {
 576                 val2 = (ucontrol->value.integer.value[1] & mask);
 577                 if (invert)
 578                         val2 = mask - val2;
 579                 val_mask |= mask << rshift;
 580                 val |= val2 << rshift;
 581         }
 582         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
 583         snd_ac97_page_restore(ac97, page_save);
 584 #ifdef CONFIG_SND_AC97_POWER_SAVE
 585         /* check analog mixer power-down */
 586         if ((val_mask & AC97_PD_EAPD) &&
 587             (kcontrol->private_value & (1<<30))) {
 588                 if (val & AC97_PD_EAPD)
 589                         ac97->power_up &= ~(1 << (reg>>1));
 590                 else
 591                         ac97->power_up |= 1 << (reg>>1);
 592                 update_power_regs(ac97);
 593         }
 594 #endif
 595         return err;
 596 }
 597
 598 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
 599 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
 600 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
 601 };
 602
 603 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
 604 AC97_SINGLE("Beep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 605 AC97_SINGLE("Beep Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 606 };
 607
 608 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
 609         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
 610
 611
 612 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
 613 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
 614 static const char* std_mix[] = {"Mix", "Mic"};
 615 static const char* std_mic[] = {"Mic1", "Mic2"};
 616
 617 static const struct ac97_enum std_enum[] = {
 618 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
 619 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
 620 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
 621 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
 622 };
 623
 624 static const struct snd_kcontrol_new snd_ac97_control_capture_src =
 625 AC97_ENUM("Capture Source", std_enum[0]);
 626
 627 static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
 628 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
 629
 630 static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
 631 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
 632 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
 633 };
 634
 635 enum {
 636         AC97_GENERAL_PCM_OUT = 0,
 637         AC97_GENERAL_STEREO_ENHANCEMENT,
 638         AC97_GENERAL_3D,
 639         AC97_GENERAL_LOUDNESS,
 640         AC97_GENERAL_MONO,
 641         AC97_GENERAL_MIC,
 642         AC97_GENERAL_LOOPBACK
 643 };
 644
 645 static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
 646 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
 647 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
 648 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 649 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
 650 AC97_ENUM("Mono Output Select", std_enum[2]),
 651 AC97_ENUM("Mic Select", std_enum[3]),
 652 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
 653 };
 654
 655 static const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
 656 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
 657 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
 658 };
 659
 660 static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
 661 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
 662 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
 663 };
 664
 665 static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
 666 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
 667 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
 668 };
 669
 670 static const struct snd_kcontrol_new snd_ac97_control_eapd =
 671 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
 672
 673 static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
 674 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
 675 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
 676 };
 677
 678 /* change the existing EAPD control as inverted */
 679 static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
 680 {
 681         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
 682         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
 683         ac97->scaps |= AC97_SCAP_INV_EAPD;
 684 }
 685
 686 static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 687 {
 688         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 689         uinfo->count = 1;
 690         return 0;
 691 }
 692
 693 static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 694 {
 695         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 696                                            IEC958_AES0_NONAUDIO |
 697                                            IEC958_AES0_CON_EMPHASIS_5015 |
 698                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 699         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 700                                            IEC958_AES1_CON_ORIGINAL;
 701         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 702         return 0;
 703 }
 704
 705 static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 706 {
 707         /* FIXME: AC'97 spec doesn't say which bits are used for what */
 708         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 709                                            IEC958_AES0_NONAUDIO |
 710                                            IEC958_AES0_PRO_FS |
 711                                            IEC958_AES0_PRO_EMPHASIS_5015;
 712         return 0;
 713 }
 714
 715 static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 716 {
 717         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 718
 719         mutex_lock(&ac97->reg_mutex);
 720         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
 721         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
 722         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
 723         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
 724         mutex_unlock(&ac97->reg_mutex);
 725         return 0;
 726 }
 727
 728 static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 729 {
 730         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 731         unsigned int new = 0;
 732         unsigned short val = 0;
 733         int change;
 734
 735         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
 736         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
 737                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
 738                 switch (new & IEC958_AES0_PRO_FS) {
 739                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
 740                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
 741                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
 742                 default:                       val |= 1<<12; break;
 743                 }
 744                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 745                         val |= 1<<3;
 746         } else {
 747                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
 748                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
 749                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
 750                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 751                         val |= 1<<3;
 752                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
 753                         val |= 1<<2;
 754                 val |= ((new >> 8) & 0xff) << 4;        // category + original
 755                 switch ((new >> 24) & 0xff) {
 756                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
 757                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
 758                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
 759                 default:                       val |= 1<<12; break;
 760                 }
 761         }
 762
 763         mutex_lock(&ac97->reg_mutex);
 764         change = ac97->spdif_status != new;
 765         ac97->spdif_status = new;
 766
 767         if (ac97->flags & AC97_CS_SPDIF) {
 768                 int x = (val >> 12) & 0x03;
 769                 switch (x) {
 770                 case 0: x = 1; break;  // 44.1
 771                 case 2: x = 0; break;  // 48.0
 772                 default: x = 0; break; // illegal.
 773                 }
 774                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
 775         } else if (ac97->flags & AC97_CX_SPDIF) {
 776                 int v;
 777                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
 778                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
 779                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
 780                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
 781                                                       v);
 782         } else if (ac97->id == AC97_ID_YMF743) {
 783                 change |= snd_ac97_update_bits_nolock(ac97,
 784                                                       AC97_YMF7X3_DIT_CTRL,
 785                                                       0xff38,
 786                                                       ((val << 4) & 0xff00) |
 787                                                       ((val << 2) & 0x0038));
 788         } else {
 789                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 790                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 791
 792                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
 793                 if (extst & AC97_EA_SPDIF) {
 794                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 795                 }
 796         }
 797         mutex_unlock(&ac97->reg_mutex);
 798
 799         return change;
 800 }
 801
 802 static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 803 {
 804         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 805         int reg = kcontrol->private_value & 0xff;
 806         int shift = (kcontrol->private_value >> 8) & 0x0f;
 807         int mask = (kcontrol->private_value >> 16) & 0xff;
 808         // int invert = (kcontrol->private_value >> 24) & 0xff;
 809         unsigned short value, old, new;
 810         int change;
 811
 812         value = (ucontrol->value.integer.value[0] & mask);
 813
 814         mutex_lock(&ac97->reg_mutex);
 815         mask <<= shift;
 816         value <<= shift;
 817         old = snd_ac97_read_cache(ac97, reg);
 818         new = (old & ~mask) | value;
 819         change = old != new;
 820
 821         if (change) {
 822                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 823                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 824                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 825                 if (extst & AC97_EA_SPDIF)
 826                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 827         }
 828         mutex_unlock(&ac97->reg_mutex);
 829         return change;
 830 }
 831
 832 static const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
 833         {
 834                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 835                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 836                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 837                 .info = snd_ac97_spdif_mask_info,
 838                 .get = snd_ac97_spdif_cmask_get,
 839         },
 840         {
 841                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 842                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 843                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 844                 .info = snd_ac97_spdif_mask_info,
 845                 .get = snd_ac97_spdif_pmask_get,
 846         },
 847         {
 848                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 849                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 850                 .info = snd_ac97_spdif_mask_info,
 851                 .get = snd_ac97_spdif_default_get,
 852                 .put = snd_ac97_spdif_default_put,
 853         },
 854
 855         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
 856         {
 857                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 858                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
 859                 .info = snd_ac97_info_volsw,
 860                 .get = snd_ac97_get_volsw,
 861                 .put = snd_ac97_put_spsa,
 862                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
 863         },
 864 };
 865
 866 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
 867 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
 868   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
 869   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
 870
 871 static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 872 {
 873         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 874         int mask = (kcontrol->private_value >> 16) & 0x0f;
 875         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 876         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 877
 878         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 879         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 880                 uinfo->count = 2;
 881         else
 882                 uinfo->count = 1;
 883         uinfo->value.integer.min = 0;
 884         uinfo->value.integer.max = mask;
 885         return 0;
 886 }
 887
 888 static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 889 {
 890         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 891         int codec = kcontrol->private_value & 3;
 892         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 893         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 894         int mask = (kcontrol->private_value >> 16) & 0xff;
 895
 896         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
 897         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 898                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
 899         return 0;
 900 }
 901
 902 static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 903 {
 904         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 905         int codec = kcontrol->private_value & 3;
 906         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 907         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 908         int mask = (kcontrol->private_value >> 16) & 0xff;
 909         unsigned short val, valmask;
 910
 911         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
 912         valmask = mask << lshift;
 913         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
 914                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
 915                 valmask |= mask << rshift;
 916         }
 917         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
 918 }
 919
 920 #define AD18XX_PCM_VOLUME(xname, codec) \
 921 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
 922   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
 923   .private_value = codec }
 924
 925 static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 926 {
 927         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 928         uinfo->count = 2;
 929         uinfo->value.integer.min = 0;
 930         uinfo->value.integer.max = 31;
 931         return 0;
 932 }
 933
 934 static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 935 {
 936         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 937         int codec = kcontrol->private_value & 3;
 938
 939         mutex_lock(&ac97->page_mutex);
 940         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
 941         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
 942         mutex_unlock(&ac97->page_mutex);
 943         return 0;
 944 }
 945
 946 static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 947 {
 948         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 949         int codec = kcontrol->private_value & 3;
 950         unsigned short val1, val2;
 951
 952         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
 953         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
 954         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
 955 }
 956
 957 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
 958 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
 959 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
 960 };
 961
 962 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
 963 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
 964 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
 965 };
 966
 967 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
 968 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
 969 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
 970 };
 971
 972 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
 973 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
 974 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
 975 };
 976
 977 /*
 978  *
 979  */
 980
 981 static void snd_ac97_powerdown(struct snd_ac97 *ac97);
 982
 983 static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
 984 {
 985         if (bus) {
 986                 snd_ac97_bus_proc_done(bus);
 987                 kfree(bus->pcms);
 988                 if (bus->private_free)
 989                         bus->private_free(bus);
 990                 kfree(bus);
 991         }
 992         return 0;
 993 }
 994
 995 static int snd_ac97_bus_dev_free(struct snd_device *device)
 996 {
 997         struct snd_ac97_bus *bus = device->device_data;
 998         return snd_ac97_bus_free(bus);
 999 }
1000
1001 static int snd_ac97_free(struct snd_ac97 *ac97)
1002 {
1003         if (ac97) {
1004 #ifdef CONFIG_SND_AC97_POWER_SAVE
1005                 cancel_delayed_work_sync(&ac97->power_work);
1006 #endif
1007                 snd_ac97_proc_done(ac97);
1008                 if (ac97->bus)
1009                         ac97->bus->codec[ac97->num] = NULL;
1010                 if (ac97->private_free)
1011                         ac97->private_free(ac97);
1012                 kfree(ac97);
1013         }
1014         return 0;
1015 }
1016
1017 static int snd_ac97_dev_free(struct snd_device *device)
1018 {
1019         struct snd_ac97 *ac97 = device->device_data;
1020         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1021         return snd_ac97_free(ac97);
1022 }
1023
1024 static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1025 {
1026         unsigned short val, mask = AC97_MUTE_MASK_MONO;
1027
1028         if (! snd_ac97_valid_reg(ac97, reg))
1029                 return 0;
1030
1031         switch (reg) {
1032         case AC97_MASTER_TONE:
1033                 return ac97->caps & AC97_BC_BASS_TREBLE ? 1 : 0;
1034         case AC97_HEADPHONE:
1035                 return ac97->caps & AC97_BC_HEADPHONE ? 1 : 0;
1036         case AC97_REC_GAIN_MIC:
1037                 return ac97->caps & AC97_BC_DEDICATED_MIC ? 1 : 0;
1038         case AC97_3D_CONTROL:
1039                 if (ac97->caps & AC97_BC_3D_TECH_ID_MASK) {
1040                         val = snd_ac97_read(ac97, reg);
1041                         /* if nonzero - fixed and we can't set it */
1042                         return val == 0;
1043                 }
1044                 return 0;
1045         case AC97_CENTER_LFE_MASTER:    /* center */
1046                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1047                         return 0;
1048                 break;
1049         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1050                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1051                         return 0;
1052                 reg = AC97_CENTER_LFE_MASTER;
1053                 mask = 0x0080;
1054                 break;
1055         case AC97_SURROUND_MASTER:
1056                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1057                         return 0;
1058                 break;
1059         }
1060
1061         val = snd_ac97_read(ac97, reg);
1062         if (!(val & mask)) {
1063                 /* nothing seems to be here - mute flag is not set */
1064                 /* try another test */
1065                 snd_ac97_write_cache(ac97, reg, val | mask);
1066                 val = snd_ac97_read(ac97, reg);
1067                 val = snd_ac97_read(ac97, reg);
1068                 if (!(val & mask))
1069                         return 0;       /* nothing here */
1070         }
1071         return 1;               /* success, useable */
1072 }
1073
1074 static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1075 {
1076         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1077         unsigned char max[3] = { 63, 31, 15 };
1078         int i;
1079
1080         /* first look up the static resolution table */
1081         if (ac97->res_table) {
1082                 const struct snd_ac97_res_table *tbl;
1083                 for (tbl = ac97->res_table; tbl->reg; tbl++) {
1084                         if (tbl->reg == reg) {
1085                                 *lo_max = tbl->bits & 0xff;
1086                                 *hi_max = (tbl->bits >> 8) & 0xff;
1087                                 return;
1088                         }
1089                 }
1090         }
1091
1092         *lo_max = *hi_max = 0;
1093         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1094                 unsigned short val;
1095                 snd_ac97_write(
1096                         ac97, reg,
1097                         AC97_MUTE_MASK_STEREO | cbit[i] | (cbit[i] << 8)
1098                 );
1099                 /* Do the read twice due to buffers on some ac97 codecs.
1100                  * e.g. The STAC9704 returns exactly what you wrote to the register
1101                  * if you read it immediately. This causes the detect routine to fail.
1102                  */
1103                 val = snd_ac97_read(ac97, reg);
1104                 val = snd_ac97_read(ac97, reg);
1105                 if (! *lo_max && (val & 0x7f) == cbit[i])
1106                         *lo_max = max[i];
1107                 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1108                         *hi_max = max[i];
1109                 if (*lo_max && *hi_max)
1110                         break;
1111         }
1112 }
1113
1114 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1115 {
1116         unsigned short mask, val, orig, res;
1117
1118         mask = 1 << bit;
1119         orig = snd_ac97_read(ac97, reg);
1120         val = orig ^ mask;
1121         snd_ac97_write(ac97, reg, val);
1122         res = snd_ac97_read(ac97, reg);
1123         snd_ac97_write_cache(ac97, reg, orig);
1124         return res == val;
1125 }
1126
1127 /* check the volume resolution of center/lfe */
1128 static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1129 {
1130         unsigned short val, val1;
1131
1132         *max = 63;
1133         val = AC97_MUTE_MASK_STEREO | (0x20 << shift);
1134         snd_ac97_write(ac97, reg, val);
1135         val1 = snd_ac97_read(ac97, reg);
1136         if (val != val1) {
1137                 *max = 31;
1138         }
1139         /* reset volume to zero */
1140         snd_ac97_write_cache(ac97, reg, AC97_MUTE_MASK_STEREO);
1141 }
1142
1143 static inline int printable(unsigned int x)
1144 {
1145         x &= 0xff;
1146         if (x < ' ' || x >= 0x71) {
1147                 if (x <= 0x89)
1148                         return x - 0x71 + 'A';
1149                 return '?';
1150         }
1151         return x;
1152 }
1153
1154 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
1155                                           struct snd_ac97 * ac97)
1156 {
1157         struct snd_kcontrol_new template;
1158         memcpy(&template, _template, sizeof(template));
1159         template.index = ac97->num;
1160         return snd_ctl_new1(&template, ac97);
1161 }
1162
1163 /*
1164  * create mute switch(es) for normal stereo controls
1165  */
1166 static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1167                                      int check_stereo, int check_amix,
1168                                      struct snd_ac97 *ac97)
1169 {
1170         struct snd_kcontrol *kctl;
1171         int err;
1172         unsigned short val, val1, mute_mask;
1173
1174         if (! snd_ac97_valid_reg(ac97, reg))
1175                 return 0;
1176
1177         mute_mask = AC97_MUTE_MASK_MONO;
1178         val = snd_ac97_read(ac97, reg);
1179         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1180                 /* check whether both mute bits work */
1181                 val1 = val | AC97_MUTE_MASK_STEREO;
1182                 snd_ac97_write(ac97, reg, val1);
1183                 if (val1 == snd_ac97_read(ac97, reg))
1184                         mute_mask = AC97_MUTE_MASK_STEREO;
1185         }
1186         if (mute_mask == AC97_MUTE_MASK_STEREO) {
1187                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1188                 if (check_amix)
1189                         tmp.private_value |= (1 << 30);
1190                 tmp.index = ac97->num;
1191                 kctl = snd_ctl_new1(&tmp, ac97);
1192         } else {
1193                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1194                 if (check_amix)
1195                         tmp.private_value |= (1 << 30);
1196                 tmp.index = ac97->num;
1197                 kctl = snd_ctl_new1(&tmp, ac97);
1198         }
1199         err = snd_ctl_add(card, kctl);
1200         if (err < 0)
1201                 return err;
1202         /* mute as default */
1203         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1204         return 0;
1205 }
1206
1207 /*
1208  * set dB information
1209  */
1210 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
1211 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
1212 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1213 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1214 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1215
1216 static const unsigned int *find_db_scale(unsigned int maxval)
1217 {
1218         switch (maxval) {
1219         case 0x0f: return db_scale_4bit;
1220         case 0x1f: return db_scale_5bit;
1221         case 0x3f: return db_scale_6bit;
1222         }
1223         return NULL;
1224 }
1225
1226 static void set_tlv_db_scale(struct snd_kcontrol *kctl, const unsigned int *tlv)
1227 {
1228         kctl->tlv.p = tlv;
1229         if (tlv)
1230                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1231 }
1232
1233 /*
1234  * create a volume for normal stereo/mono controls
1235  */
1236 static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1237                              unsigned int hi_max, struct snd_ac97 *ac97)
1238 {
1239         int err;
1240         struct snd_kcontrol *kctl;
1241
1242         if (! snd_ac97_valid_reg(ac97, reg))
1243                 return 0;
1244         if (hi_max) {
1245                 /* invert */
1246                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1247                 tmp.index = ac97->num;
1248                 kctl = snd_ctl_new1(&tmp, ac97);
1249         } else {
1250                 /* invert */
1251                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1252                 tmp.index = ac97->num;
1253                 kctl = snd_ctl_new1(&tmp, ac97);
1254         }
1255         if (!kctl)
1256                 return -ENOMEM;
1257         if (reg >= AC97_PHONE && reg <= AC97_PCM)
1258                 set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
1259         else
1260                 set_tlv_db_scale(kctl, find_db_scale(lo_max));
1261         err = snd_ctl_add(card, kctl);
1262         if (err < 0)
1263                 return err;
1264         snd_ac97_write_cache(
1265                 ac97, reg,
1266                 (snd_ac97_read(ac97, reg) & AC97_MUTE_MASK_STEREO)
1267                 | lo_max | (hi_max << 8)
1268         );
1269         return 0;
1270 }
1271
1272 /*
1273  * create a mute-switch and a volume for normal stereo/mono controls
1274  */
1275 static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1276                                     int reg, int check_stereo, int check_amix,
1277                                     struct snd_ac97 *ac97)
1278 {
1279         int err;
1280         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1281         unsigned char lo_max, hi_max;
1282
1283         if (! snd_ac97_valid_reg(ac97, reg))
1284                 return 0;
1285
1286         if (snd_ac97_try_bit(ac97, reg, 15)) {
1287                 sprintf(name, "%s Switch", pfx);
1288                 err = snd_ac97_cmute_new_stereo(card, name, reg,
1289                                                 check_stereo, check_amix,
1290                                                 ac97);
1291                 if (err < 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                 err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97);
1298                 if (err < 0)
1299                         return err;
1300         }
1301         return 0;
1302 }
1303
1304 #define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1305         snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1306 #define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1307         snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1308
1309 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1310
1311 static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1312 {
1313         struct snd_card *card = ac97->bus->card;
1314         struct snd_kcontrol *kctl;
1315         int err;
1316         unsigned int idx;
1317         unsigned char max;
1318
1319         /* build master controls */
1320         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1321         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1322                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1323                         err = snd_ac97_cmute_new(card, "Master Playback Switch",
1324                                                  AC97_MASTER, 0, ac97);
1325                 else
1326                         err = snd_ac97_cmix_new(card, "Master Playback",
1327                                                 AC97_MASTER, 0, ac97);
1328                 if (err < 0)
1329                         return err;
1330         }
1331
1332         ac97->regs[AC97_CENTER_LFE_MASTER] = AC97_MUTE_MASK_STEREO;
1333
1334         /* build center controls */
1335         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1336                 && !(ac97->flags & AC97_AD_MULTI)) {
1337                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97));
1338                 if (err < 0)
1339                         return err;
1340                 err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97));
1341                 if (err < 0)
1342                         return err;
1343                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1344                 kctl->private_value &= ~(0xff << 16);
1345                 kctl->private_value |= (int)max << 16;
1346                 set_tlv_db_scale(kctl, find_db_scale(max));
1347                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1348         }
1349
1350         /* build LFE controls */
1351         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1352                 && !(ac97->flags & AC97_AD_MULTI)) {
1353                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97));
1354                 if (err < 0)
1355                         return err;
1356                 err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97));
1357                 if (err < 0)
1358                         return err;
1359                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1360                 kctl->private_value &= ~(0xff << 16);
1361                 kctl->private_value |= (int)max << 16;
1362                 set_tlv_db_scale(kctl, find_db_scale(max));
1363                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1364         }
1365
1366         /* build surround controls */
1367         if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1368                 && !(ac97->flags & AC97_AD_MULTI)) {
1369                 /* Surround Master (0x38) is with stereo mutes */
1370                 err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1371                                                AC97_SURROUND_MASTER, 1, 0,
1372                                                ac97);
1373                 if (err < 0)
1374                         return err;
1375         }
1376
1377         /* build headphone controls */
1378         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1379                 err = snd_ac97_cmix_new(card, "Headphone Playback",
1380                                         AC97_HEADPHONE, 0, ac97);
1381                 if (err < 0)
1382                         return err;
1383         }
1384
1385         /* build master mono controls */
1386         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1387                 err = snd_ac97_cmix_new(card, "Master Mono Playback",
1388                                         AC97_MASTER_MONO, 0, ac97);
1389                 if (err < 0)
1390                         return err;
1391         }
1392
1393         /* build master tone controls */
1394         if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1395                 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1396                         for (idx = 0; idx < 2; idx++) {
1397                                 kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97);
1398                                 err = snd_ctl_add(card, kctl);
1399                                 if (err < 0)
1400                                         return err;
1401                                 if (ac97->id == AC97_ID_YMF743 ||
1402                                     ac97->id == AC97_ID_YMF753) {
1403                                         kctl->private_value &= ~(0xff << 16);
1404                                         kctl->private_value |= 7 << 16;
1405                                 }
1406                         }
1407                         snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1408                 }
1409         }
1410
1411         /* build Beep controls */
1412         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1413                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1414             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1415                 for (idx = 0; idx < 2; idx++) {
1416                         kctl = snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97);
1417                         err = snd_ctl_add(card, kctl);
1418                         if (err < 0)
1419                                 return err;
1420                 }
1421                 set_tlv_db_scale(kctl, db_scale_4bit);
1422                 snd_ac97_write_cache(
1423                         ac97,
1424                         AC97_PC_BEEP,
1425                         (snd_ac97_read(ac97, AC97_PC_BEEP)
1426                                 | AC97_MUTE_MASK_MONO | 0x001e)
1427                 );
1428         }
1429
1430         /* build Phone controls */
1431         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1432                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1433                         err = snd_ac97_cmix_new(card, "Phone Playback",
1434                                                 AC97_PHONE, 1, ac97);
1435                         if (err < 0)
1436                                 return err;
1437                 }
1438         }
1439
1440         /* build MIC controls */
1441         if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1442                 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1443                         err = snd_ac97_cmix_new(card, "Mic Playback",
1444                                                 AC97_MIC, 1, ac97);
1445                         if (err < 0)
1446                                 return err;
1447                         err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97));
1448                         if (err < 0)
1449                                 return err;
1450                 }
1451         }
1452
1453         /* build Line controls */
1454         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1455                 err = snd_ac97_cmix_new(card, "Line Playback",
1456                                         AC97_LINE, 1, ac97);
1457                 if (err < 0)
1458                         return err;
1459         }
1460
1461         /* build CD controls */
1462         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1463                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1464                         err = snd_ac97_cmix_new(card, "CD Playback",
1465                                                 AC97_CD, 1, ac97);
1466                         if (err < 0)
1467                                 return err;
1468                 }
1469         }
1470
1471         /* build Video controls */
1472         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1473                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1474                         err = snd_ac97_cmix_new(card, "Video Playback",
1475                                                 AC97_VIDEO, 1, ac97);
1476                         if (err < 0)
1477                                 return err;
1478                 }
1479         }
1480
1481         /* build Aux controls */
1482         if (!(ac97->flags & AC97_HAS_NO_AUX)) {
1483                 if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1484                         err = snd_ac97_cmix_new(card, "Aux Playback",
1485                                                 AC97_AUX, 1, ac97);
1486                         if (err < 0)
1487                                 return err;
1488                 }
1489         }
1490
1491         /* build PCM controls */
1492         if (ac97->flags & AC97_AD_MULTI) {
1493                 unsigned short init_val;
1494                 if (ac97->flags & AC97_STEREO_MUTES)
1495                         init_val = 0x9f9f;
1496                 else
1497                         init_val = 0x9f1f;
1498                 for (idx = 0; idx < 2; idx++) {
1499                         kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97);
1500                         err = snd_ctl_add(card, kctl);
1501                         if (err < 0)
1502                                 return err;
1503                 }
1504                 set_tlv_db_scale(kctl, db_scale_5bit);
1505                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1506                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1507                         for (idx = 0; idx < 2; idx++) {
1508                                 kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97);
1509                                 err = snd_ctl_add(card, kctl);
1510                                 if (err < 0)
1511                                         return err;
1512                         }
1513                         set_tlv_db_scale(kctl, db_scale_5bit);
1514                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1515                 }
1516                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1517                         for (idx = 0; idx < 2; idx++) {
1518                                 kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97);
1519                                 err = snd_ctl_add(card, kctl);
1520                                 if (err < 0)
1521                                         return err;
1522                         }
1523                         set_tlv_db_scale(kctl, db_scale_5bit);
1524                         for (idx = 0; idx < 2; idx++) {
1525                                 kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97);
1526                                 err = snd_ctl_add(card, kctl);
1527                                 if (err < 0)
1528                                         return err;
1529                         }
1530                         set_tlv_db_scale(kctl, db_scale_5bit);
1531                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1532                 }
1533                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1534         } else {
1535                 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1536                         if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1537                                 err = snd_ac97_cmute_new(card,
1538                                                          "PCM Playback Switch",
1539                                                          AC97_PCM, 0, ac97);
1540                         else
1541                                 err = snd_ac97_cmix_new(card, "PCM Playback",
1542                                                         AC97_PCM, 0, ac97);
1543                         if (err < 0)
1544                                 return err;
1545                 }
1546         }
1547
1548         /* build Capture controls */
1549         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1550                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97));
1551                 if (err < 0)
1552                         return err;
1553                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1554                         err = snd_ac97_cmute_new(card, "Capture Switch",
1555                                                  AC97_REC_GAIN, 0, ac97);
1556                         if (err < 0)
1557                                 return err;
1558                 }
1559                 kctl = snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97);
1560                 err = snd_ctl_add(card, kctl);
1561                 if (err < 0)
1562                         return err;
1563                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1564                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1565                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1566         }
1567         /* build MIC Capture controls */
1568         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1569                 for (idx = 0; idx < 2; idx++) {
1570                         kctl = snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97);
1571                         err = snd_ctl_add(card, kctl);
1572                         if (err < 0)
1573                                 return err;
1574                 }
1575                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1576                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1577         }
1578
1579         /* build PCM out path & mute control */
1580         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1581                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97));
1582                 if (err < 0)
1583                         return err;
1584         }
1585
1586         /* build Simulated Stereo Enhancement control */
1587         if (ac97->caps & AC97_BC_SIM_STEREO) {
1588                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97));
1589                 if (err < 0)
1590                         return err;
1591         }
1592
1593         /* build 3D Stereo Enhancement control */
1594         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1595                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97));
1596                 if (err < 0)
1597                         return err;
1598         }
1599
1600         /* build Loudness control */
1601         if (ac97->caps & AC97_BC_LOUDNESS) {
1602                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97));
1603                 if (err < 0)
1604                         return err;
1605         }
1606
1607         /* build Mono output select control */
1608         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1609                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97));
1610                 if (err < 0)
1611                         return err;
1612         }
1613
1614         /* build Mic select control */
1615         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1616                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97));
1617                 if (err < 0)
1618                         return err;
1619         }
1620
1621         /* build ADC/DAC loopback control */
1622         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1623                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97));
1624                 if (err < 0)
1625                         return err;
1626         }
1627
1628         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1629
1630         /* build 3D controls */
1631         if (ac97->build_ops->build_3d) {
1632                 ac97->build_ops->build_3d(ac97);
1633         } else {
1634                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1635                         unsigned short val;
1636                         val = 0x0707;
1637                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1638                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1639                         val = val == 0x0606;
1640                         kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97);
1641                         err = snd_ctl_add(card, kctl);
1642                         if (err < 0)
1643                                 return err;
1644                         if (val)
1645                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1646                         kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97);
1647                         err = snd_ctl_add(card, kctl);
1648                         if (err < 0)
1649                                 return err;
1650                         if (val)
1651                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1652                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1653                 }
1654         }
1655
1656         /* build S/PDIF controls */
1657
1658         /* Hack for ASUS P5P800-VM, which does not indicate S/PDIF capability */
1659         if (ac97->subsystem_vendor == 0x1043 &&
1660             ac97->subsystem_device == 0x810f)
1661                 ac97->ext_id |= AC97_EI_SPDIF;
1662
1663         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1664                 if (ac97->build_ops->build_spdif) {
1665                         err = ac97->build_ops->build_spdif(ac97);
1666                         if (err < 0)
1667                                 return err;
1668                 } else {
1669                         for (idx = 0; idx < 5; idx++) {
1670                                 err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97));
1671                                 if (err < 0)
1672                                         return err;
1673                         }
1674                         if (ac97->build_ops->build_post_spdif) {
1675                                 err = ac97->build_ops->build_post_spdif(ac97);
1676                                 if (err < 0)
1677                                         return err;
1678                         }
1679                         /* set default PCM S/PDIF params */
1680                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1681                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1682                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1683                 }
1684                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1685         }
1686
1687         /* build chip specific controls */
1688         if (ac97->build_ops->build_specific) {
1689                 err = ac97->build_ops->build_specific(ac97);
1690                 if (err < 0)
1691                         return err;
1692         }
1693
1694         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1695                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1696                 if (! kctl)
1697                         return -ENOMEM;
1698                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1699                         set_inv_eapd(ac97, kctl);
1700                 err = snd_ctl_add(card, kctl);
1701                 if (err < 0)
1702                         return err;
1703         }
1704
1705         return 0;
1706 }
1707
1708 static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1709 {
1710         int err, idx;
1711
1712         /*
1713         ac97_dbg(ac97, "AC97_GPIO_CFG = %x\n",
1714                snd_ac97_read(ac97,AC97_GPIO_CFG));
1715         */
1716         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1717         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1718         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1719         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1720         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1721
1722         /* build modem switches */
1723         for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++) {
1724                 err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97));
1725                 if (err < 0)
1726                         return err;
1727         }
1728
1729         /* build chip specific controls */
1730         if (ac97->build_ops->build_specific) {
1731                 err = ac97->build_ops->build_specific(ac97);
1732                 if (err < 0)
1733                         return err;
1734         }
1735
1736         return 0;
1737 }
1738
1739 static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1740 {
1741         unsigned short val;
1742         unsigned int tmp;
1743
1744         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1745         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1746         if (shadow_reg)
1747                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1748         val = snd_ac97_read(ac97, reg);
1749         return val == (tmp & 0xffff);
1750 }
1751
1752 static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1753 {
1754         unsigned int result = 0;
1755         unsigned short saved;
1756
1757         if (ac97->bus->no_vra) {
1758                 *r_result = SNDRV_PCM_RATE_48000;
1759                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1760                     reg == AC97_PCM_FRONT_DAC_RATE)
1761                         *r_result |= SNDRV_PCM_RATE_96000;
1762                 return;
1763         }
1764
1765         saved = snd_ac97_read(ac97, reg);
1766         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1767                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1768                                      AC97_EA_DRA, 0);
1769         /* test a non-standard rate */
1770         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1771                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1772         /* let's try to obtain standard rates */
1773         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1774                 result |= SNDRV_PCM_RATE_8000;
1775         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1776                 result |= SNDRV_PCM_RATE_11025;
1777         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1778                 result |= SNDRV_PCM_RATE_16000;
1779         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1780                 result |= SNDRV_PCM_RATE_22050;
1781         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1782                 result |= SNDRV_PCM_RATE_32000;
1783         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1784                 result |= SNDRV_PCM_RATE_44100;
1785         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1786                 result |= SNDRV_PCM_RATE_48000;
1787         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1788             reg == AC97_PCM_FRONT_DAC_RATE) {
1789                 /* test standard double rates */
1790                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1791                                      AC97_EA_DRA, AC97_EA_DRA);
1792                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1793                         result |= SNDRV_PCM_RATE_64000;
1794                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1795                         result |= SNDRV_PCM_RATE_88200;
1796                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1797                         result |= SNDRV_PCM_RATE_96000;
1798                 /* some codecs don't support variable double rates */
1799                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1800                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1801                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1802                                      AC97_EA_DRA, 0);
1803         }
1804         /* restore the default value */
1805         snd_ac97_write_cache(ac97, reg, saved);
1806         if (shadow_reg)
1807                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1808         *r_result = result;
1809 }
1810
1811 /* check AC97_SPDIF register to accept which sample rates */
1812 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1813 {
1814         unsigned int result = 0;
1815         int i;
1816         static const unsigned short ctl_bits[] = {
1817                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1818         };
1819         static const unsigned int rate_bits[] = {
1820                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1821         };
1822
1823         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1824                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1825                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1826                         result |= rate_bits[i];
1827         }
1828         return result;
1829 }
1830
1831 /* look for the codec id table matching with the given id */
1832 static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1833                                                      unsigned int id)
1834 {
1835         const struct ac97_codec_id *pid;
1836
1837         for (pid = table; pid->id; pid++)
1838                 if (pid->id == (id & pid->mask))
1839                         return pid;
1840         return NULL;
1841 }
1842
1843 void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1844 {
1845         const struct ac97_codec_id *pid;
1846
1847         sprintf(name, "0x%x %c%c%c", id,
1848                 printable(id >> 24),
1849                 printable(id >> 16),
1850                 printable(id >> 8));
1851         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1852         if (! pid)
1853                 return;
1854
1855         strcpy(name, pid->name);
1856         if (ac97 && pid->patch) {
1857                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1858                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1859                         pid->patch(ac97);
1860         }
1861
1862         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1863         if (pid) {
1864                 strcat(name, " ");
1865                 strcat(name, pid->name);
1866                 if (pid->mask != 0xffffffff)
1867                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1868                 if (ac97 && pid->patch) {
1869                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1870                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1871                                 pid->patch(ac97);
1872                 }
1873         } else
1874                 sprintf(name + strlen(name), " id %x", id & 0xff);
1875 }
1876
1877 /**
1878  * snd_ac97_get_short_name - retrieve codec name
1879  * @ac97: the codec instance
1880  *
1881  * Return: The short identifying name of the codec.
1882  */
1883 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1884 {
1885         const struct ac97_codec_id *pid;
1886
1887         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1888                 if (pid->id == (ac97->id & pid->mask))
1889                         return pid->name;
1890         return "unknown codec";
1891 }
1892
1893 EXPORT_SYMBOL(snd_ac97_get_short_name);
1894
1895 /* wait for a while until registers are accessible after RESET
1896  * return 0 if ok, negative not ready
1897  */
1898 static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1899 {
1900         unsigned long end_time;
1901         unsigned short val;
1902
1903         end_time = jiffies + timeout;
1904         do {
1905
1906                 /* use preliminary reads to settle the communication */
1907                 snd_ac97_read(ac97, AC97_RESET);
1908                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1909                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1910                 /* modem? */
1911                 if (with_modem) {
1912                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1913                         if (val != 0xffff && (val & 1) != 0)
1914                                 return 0;
1915                 }
1916                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1917                         /* probably only Xbox issue - all registers are read as zero */
1918                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1919                         if (val != 0 && val != 0xffff)
1920                                 return 0;
1921                 } else {
1922                         /* because the PCM or MASTER volume registers can be modified,
1923                          * the REC_GAIN register is used for tests
1924                          */
1925                         /* test if we can write to the record gain volume register */
1926                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1927                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1928                                 return 0;
1929                 }
1930                 schedule_timeout_uninterruptible(1);
1931         } while (time_after_eq(end_time, jiffies));
1932         return -ENODEV;
1933 }
1934
1935 /**
1936  * snd_ac97_bus - create an AC97 bus component
1937  * @card: the card instance
1938  * @num: the bus number
1939  * @ops: the bus callbacks table
1940  * @private_data: private data pointer for the new instance
1941  * @rbus: the pointer to store the new AC97 bus instance.
1942  *
1943  * Creates an AC97 bus component.  An struct snd_ac97_bus instance is newly
1944  * allocated and initialized.
1945  *
1946  * The ops table must include valid callbacks (at least read and
1947  * write).  The other callbacks, wait and reset, are not mandatory.
1948  *
1949  * The clock is set to 48000.  If another clock is needed, set
1950  * ``(*rbus)->clock`` manually.
1951  *
1952  * The AC97 bus instance is registered as a low-level device, so you don't
1953  * have to release it manually.
1954  *
1955  * Return: Zero if successful, or a negative error code on failure.
1956  */
1957 int snd_ac97_bus(struct snd_card *card, int num,
1958                  const struct snd_ac97_bus_ops *ops,
1959                  void *private_data, struct snd_ac97_bus **rbus)
1960 {
1961         int err;
1962         struct snd_ac97_bus *bus;
1963         static const struct snd_device_ops dev_ops = {
1964                 .dev_free =     snd_ac97_bus_dev_free,
1965         };
1966
1967         if (snd_BUG_ON(!card))
1968                 return -EINVAL;
1969         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1970         if (bus == NULL)
1971                 return -ENOMEM;
1972         bus->card = card;
1973         bus->num = num;
1974         bus->ops = ops;
1975         bus->private_data = private_data;
1976         bus->clock = 48000;
1977         spin_lock_init(&bus->bus_lock);
1978         snd_ac97_bus_proc_init(bus);
1979         err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
1980         if (err < 0) {
1981                 snd_ac97_bus_free(bus);
1982                 return err;
1983         }
1984         if (rbus)
1985                 *rbus = bus;
1986         return 0;
1987 }
1988
1989 EXPORT_SYMBOL(snd_ac97_bus);
1990
1991 /* stop no dev release warning */
1992 static void ac97_device_release(struct device * dev)
1993 {
1994 }
1995
1996 /* register ac97 codec to bus */
1997 static int snd_ac97_dev_register(struct snd_device *device)
1998 {
1999         struct snd_ac97 *ac97 = device->device_data;
2000         int err;
2001
2002         ac97->dev.bus = &ac97_bus_type;
2003         ac97->dev.parent = ac97->bus->card->dev;
2004         ac97->dev.release = ac97_device_release;
2005         dev_set_name(&ac97->dev, "%d-%d:%s",
2006                      ac97->bus->card->number, ac97->num,
2007                      snd_ac97_get_short_name(ac97));
2008         err = device_register(&ac97->dev);
2009         if (err < 0) {
2010                 ac97_err(ac97, "Can't register ac97 bus\n");
2011                 put_device(&ac97->dev);
2012                 ac97->dev.bus = NULL;
2013                 return err;
2014         }
2015         return 0;
2016 }
2017
2018 /* disconnect ac97 codec */
2019 static int snd_ac97_dev_disconnect(struct snd_device *device)
2020 {
2021         struct snd_ac97 *ac97 = device->device_data;
2022         if (ac97->dev.bus)
2023                 device_unregister(&ac97->dev);
2024         return 0;
2025 }
2026
2027 /* build_ops to do nothing */
2028 static const struct snd_ac97_build_ops null_build_ops;
2029
2030 #ifdef CONFIG_SND_AC97_POWER_SAVE
2031 static void do_update_power(struct work_struct *work)
2032 {
2033         update_power_regs(
2034                 container_of(work, struct snd_ac97, power_work.work));
2035 }
2036 #endif
2037
2038 /**
2039  * snd_ac97_mixer - create an Codec97 component
2040  * @bus: the AC97 bus which codec is attached to
2041  * @template: the template of ac97, including index, callbacks and
2042  *         the private data.
2043  * @rac97: the pointer to store the new ac97 instance.
2044  *
2045  * Creates an Codec97 component.  An struct snd_ac97 instance is newly
2046  * allocated and initialized from the template.  The codec
2047  * is then initialized by the standard procedure.
2048  *
2049  * The template must include the codec number (num) and address (addr),
2050  * and the private data (private_data).
2051  *
2052  * The ac97 instance is registered as a low-level device, so you don't
2053  * have to release it manually.
2054  *
2055  * Return: Zero if successful, or a negative error code on failure.
2056  */
2057 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
2058 {
2059         int err;
2060         struct snd_ac97 *ac97;
2061         struct snd_card *card;
2062         char name[64];
2063         unsigned long end_time;
2064         unsigned int reg;
2065         const struct ac97_codec_id *pid;
2066         static const struct snd_device_ops ops = {
2067                 .dev_free =     snd_ac97_dev_free,
2068                 .dev_register = snd_ac97_dev_register,
2069                 .dev_disconnect =       snd_ac97_dev_disconnect,
2070         };
2071
2072         if (snd_BUG_ON(!bus || !template || !rac97))
2073                 return -EINVAL;
2074         *rac97 = NULL;
2075         if (snd_BUG_ON(template->num >= 4))
2076                 return -EINVAL;
2077         if (bus->codec[template->num])
2078                 return -EBUSY;
2079
2080         card = bus->card;
2081         ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
2082         if (ac97 == NULL)
2083                 return -ENOMEM;
2084         ac97->private_data = template->private_data;
2085         ac97->private_free = template->private_free;
2086         ac97->bus = bus;
2087         ac97->pci = template->pci;
2088         ac97->num = template->num;
2089         ac97->addr = template->addr;
2090         ac97->scaps = template->scaps;
2091         ac97->res_table = template->res_table;
2092         bus->codec[ac97->num] = ac97;
2093         mutex_init(&ac97->reg_mutex);
2094         mutex_init(&ac97->page_mutex);
2095 #ifdef CONFIG_SND_AC97_POWER_SAVE
2096         INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
2097 #endif
2098
2099 #ifdef CONFIG_PCI
2100         if (ac97->pci) {
2101                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
2102                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
2103         }
2104 #endif
2105         if (bus->ops->reset) {
2106                 bus->ops->reset(ac97);
2107                 goto __access_ok;
2108         }
2109
2110         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2111         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2112         if (ac97->id && ac97->id != (unsigned int)-1) {
2113                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2114                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
2115                         goto __access_ok;
2116         }
2117
2118         /* reset to defaults */
2119         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2120                 snd_ac97_write(ac97, AC97_RESET, 0);
2121         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2122                 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2123         if (bus->ops->wait)
2124                 bus->ops->wait(ac97);
2125         else {
2126                 udelay(50);
2127                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
2128                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 1);
2129                 else {
2130                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 0);
2131                         if (err < 0)
2132                                 err = ac97_reset_wait(ac97,
2133                                                       msecs_to_jiffies(500), 1);
2134                 }
2135                 if (err < 0) {
2136                         ac97_warn(ac97, "AC'97 %d does not respond - RESET\n",
2137                                  ac97->num);
2138                         /* proceed anyway - it's often non-critical */
2139                 }
2140         }
2141       __access_ok:
2142         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2143         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2144         if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
2145             (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
2146                 ac97_err(ac97,
2147                          "AC'97 %d access is not valid [0x%x], removing mixer.\n",
2148                          ac97->num, ac97->id);
2149                 snd_ac97_free(ac97);
2150                 return -EIO;
2151         }
2152         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2153         if (pid)
2154                 ac97->flags |= pid->flags;
2155
2156         /* test for AC'97 */
2157         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2158                 /* test if we can write to the record gain volume register */
2159                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2160                 err = snd_ac97_read(ac97, AC97_REC_GAIN);
2161                 if ((err & 0x7fff) == 0x0a06)
2162                         ac97->scaps |= AC97_SCAP_AUDIO;
2163         }
2164         if (ac97->scaps & AC97_SCAP_AUDIO) {
2165                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2166                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2167                 if (ac97->ext_id == 0xffff)     /* invalid combination */
2168                         ac97->ext_id = 0;
2169         }
2170
2171         /* test for MC'97 */
2172         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2173                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2174                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
2175                         ac97->ext_mid = 0;
2176                 if (ac97->ext_mid & 1)
2177                         ac97->scaps |= AC97_SCAP_MODEM;
2178         }
2179
2180         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2181                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2182                         ac97_err(ac97,
2183                                  "AC'97 %d access error (not audio or modem codec)\n",
2184                                  ac97->num);
2185                 snd_ac97_free(ac97);
2186                 return -EACCES;
2187         }
2188
2189         if (bus->ops->reset) // FIXME: always skipping?
2190                 goto __ready_ok;
2191
2192         /* FIXME: add powerdown control */
2193         if (ac97_is_audio(ac97)) {
2194                 /* nothing should be in powerdown mode */
2195                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2196                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2197                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2198                         udelay(100);
2199                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2200                 }
2201                 /* nothing should be in powerdown mode */
2202                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2203                 end_time = jiffies + msecs_to_jiffies(5000);
2204                 do {
2205                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2206                                 goto __ready_ok;
2207                         schedule_timeout_uninterruptible(1);
2208                 } while (time_after_eq(end_time, jiffies));
2209                 ac97_warn(ac97,
2210                           "AC'97 %d analog subsections not ready\n", ac97->num);
2211         }
2212
2213         /* FIXME: add powerdown control */
2214         if (ac97_is_modem(ac97)) {
2215                 unsigned char tmp;
2216
2217                 /* nothing should be in powerdown mode */
2218                 /* note: it's important to set the rate at first */
2219                 tmp = AC97_MEA_GPIO;
2220                 if (ac97->ext_mid & AC97_MEI_LINE1) {
2221                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2222                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2223                 }
2224                 if (ac97->ext_mid & AC97_MEI_LINE2) {
2225                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2226                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2227                 }
2228                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
2229                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2230                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2231                 }
2232                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2233                 udelay(100);
2234                 /* nothing should be in powerdown mode */
2235                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2236                 end_time = jiffies + msecs_to_jiffies(100);
2237                 do {
2238                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2239                                 goto __ready_ok;
2240                         schedule_timeout_uninterruptible(1);
2241                 } while (time_after_eq(end_time, jiffies));
2242                 ac97_warn(ac97,
2243                           "MC'97 %d converters and GPIO not ready (0x%x)\n",
2244                           ac97->num,
2245                           snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2246         }
2247
2248       __ready_ok:
2249         if (ac97_is_audio(ac97))
2250                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2251         else
2252                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2253         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
2254                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2255                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2256                 if (! bus->no_vra)
2257                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2258                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2259         }
2260         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2261                 /* Intel controllers require double rate data to be put in
2262                  * slots 7+8, so let's hope the codec supports it. */
2263                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2264                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2265                         ac97->flags |= AC97_DOUBLE_RATE;
2266                 /* restore to slots 10/11 to avoid the confliction with surrounds */
2267                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
2268         }
2269         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2270                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2271                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2272         } else {
2273                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2274                 if (ac97->flags & AC97_DOUBLE_RATE)
2275                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2276                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2277         }
2278         if (ac97->ext_id & AC97_EI_SPDIF) {
2279                 /* codec specific code (patch) should override these values */
2280                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2281         }
2282         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2283                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2284         } else {
2285                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2286         }
2287         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2288                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2289                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2290         }
2291         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2292                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2293                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2294         }
2295         /* additional initializations */
2296         if (bus->ops->init)
2297                 bus->ops->init(ac97);
2298         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2299         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2300         if (! ac97->build_ops)
2301                 ac97->build_ops = &null_build_ops;
2302
2303         if (ac97_is_audio(ac97)) {
2304                 char comp[16];
2305                 if (card->mixername[0] == '\0') {
2306                         strcpy(card->mixername, name);
2307                 } else {
2308                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2309                                 strcat(card->mixername, ",");
2310                                 strcat(card->mixername, name);
2311                         }
2312                 }
2313                 sprintf(comp, "AC97a:%08x", ac97->id);
2314                 err = snd_component_add(card, comp);
2315                 if (err < 0) {
2316                         snd_ac97_free(ac97);
2317                         return err;
2318                 }
2319                 if (snd_ac97_mixer_build(ac97) < 0) {
2320                         snd_ac97_free(ac97);
2321                         return -ENOMEM;
2322                 }
2323         }
2324         if (ac97_is_modem(ac97)) {
2325                 char comp[16];
2326                 if (card->mixername[0] == '\0') {
2327                         strcpy(card->mixername, name);
2328                 } else {
2329                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2330                                 strcat(card->mixername, ",");
2331                                 strcat(card->mixername, name);
2332                         }
2333                 }
2334                 sprintf(comp, "AC97m:%08x", ac97->id);
2335                 err = snd_component_add(card, comp);
2336                 if (err < 0) {
2337                         snd_ac97_free(ac97);
2338                         return err;
2339                 }
2340                 if (snd_ac97_modem_build(card, ac97) < 0) {
2341                         snd_ac97_free(ac97);
2342                         return -ENOMEM;
2343                 }
2344         }
2345         if (ac97_is_audio(ac97))
2346                 update_power_regs(ac97);
2347         snd_ac97_proc_init(ac97);
2348         err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops);
2349         if (err < 0) {
2350                 snd_ac97_free(ac97);
2351                 return err;
2352         }
2353         *rac97 = ac97;
2354         return 0;
2355 }
2356
2357 EXPORT_SYMBOL(snd_ac97_mixer);
2358
2359 /*
2360  * Power down the chip.
2361  *
2362  * MASTER and HEADPHONE registers are muted but the register cache values
2363  * are not changed, so that the values can be restored in snd_ac97_resume().
2364  */
2365 static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2366 {
2367         unsigned short power;
2368
2369         if (ac97_is_audio(ac97)) {
2370                 /* some codecs have stereo mute bits */
2371                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2372                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2373         }
2374
2375         /* surround, CLFE, mic powerdown */
2376         power = ac97->regs[AC97_EXTENDED_STATUS];
2377         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2378                 power |= AC97_EA_PRJ;
2379         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2380                 power |= AC97_EA_PRI | AC97_EA_PRK;
2381         power |= AC97_EA_PRL;
2382         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2383
2384         /* powerdown external amplifier */
2385         if (ac97->scaps & AC97_SCAP_INV_EAPD)
2386                 power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2387         else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2388                 power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2389         power |= AC97_PD_PR6;   /* Headphone amplifier powerdown */
2390         power |= AC97_PD_PR0 | AC97_PD_PR1;     /* ADC & DAC powerdown */
2391         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2392         udelay(100);
2393         power |= AC97_PD_PR2;   /* Analog Mixer powerdown (Vref on) */
2394         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2395         if (ac97_is_power_save_mode(ac97)) {
2396                 power |= AC97_PD_PR3;   /* Analog Mixer powerdown */
2397                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2398                 udelay(100);
2399                 /* AC-link powerdown, internal Clk disable */
2400                 /* FIXME: this may cause click noises on some boards */
2401                 power |= AC97_PD_PR4 | AC97_PD_PR5;
2402                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2403         }
2404 }
2405
2406
2407 struct ac97_power_reg {
2408         unsigned short reg;
2409         unsigned short power_reg;
2410         unsigned short mask;
2411 };
2412
2413 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2414
2415 static const struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2416         [PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2417         [PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2418         [PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2419                          AC97_EA_PRI | AC97_EA_PRK},
2420         [PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2421                          AC97_EA_PRJ},
2422         [PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2423                         AC97_EA_PRL},
2424 };
2425
2426 #ifdef CONFIG_SND_AC97_POWER_SAVE
2427 /**
2428  * snd_ac97_update_power - update the powerdown register
2429  * @ac97: the codec instance
2430  * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2431  * @powerup: non-zero when power up the part
2432  *
2433  * Update the AC97 powerdown register bits of the given part.
2434  *
2435  * Return: Zero.
2436  */
2437 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2438 {
2439         int i;
2440
2441         if (! ac97)
2442                 return 0;
2443
2444         if (reg) {
2445                 /* SPDIF requires DAC power, too */
2446                 if (reg == AC97_SPDIF)
2447                         reg = AC97_PCM_FRONT_DAC_RATE;
2448                 for (i = 0; i < PWIDX_SIZE; i++) {
2449                         if (power_regs[i].reg == reg) {
2450                                 if (powerup)
2451                                         ac97->power_up |= (1 << i);
2452                                 else
2453                                         ac97->power_up &= ~(1 << i);
2454                                 break;
2455                         }
2456                 }
2457         }
2458
2459         if (ac97_is_power_save_mode(ac97) && !powerup)
2460                 /* adjust power-down bits after two seconds delay
2461                  * (for avoiding loud click noises for many (OSS) apps
2462                  *  that open/close frequently)
2463                  */
2464                 schedule_delayed_work(&ac97->power_work,
2465                                       msecs_to_jiffies(power_save * 1000));
2466         else {
2467                 cancel_delayed_work(&ac97->power_work);
2468                 update_power_regs(ac97);
2469         }
2470
2471         return 0;
2472 }
2473
2474 EXPORT_SYMBOL(snd_ac97_update_power);
2475 #endif /* CONFIG_SND_AC97_POWER_SAVE */
2476
2477 static void update_power_regs(struct snd_ac97 *ac97)
2478 {
2479         unsigned int power_up, bits;
2480         int i;
2481
2482         power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2483         power_up |= (1 << PWIDX_MIC);
2484         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2485                 power_up |= (1 << PWIDX_SURR);
2486         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2487                 power_up |= (1 << PWIDX_CLFE);
2488 #ifdef CONFIG_SND_AC97_POWER_SAVE
2489         if (ac97_is_power_save_mode(ac97))
2490                 power_up = ac97->power_up;
2491 #endif
2492         if (power_up) {
2493                 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2494                         /* needs power-up analog mix and vref */
2495                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2496                                              AC97_PD_PR3, 0);
2497                         msleep(1);
2498                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2499                                              AC97_PD_PR2, 0);
2500                 }
2501         }
2502         for (i = 0; i < PWIDX_SIZE; i++) {
2503                 if (power_up & (1 << i))
2504                         bits = 0;
2505                 else
2506                         bits = power_regs[i].mask;
2507                 snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2508                                      power_regs[i].mask, bits);
2509         }
2510         if (! power_up) {
2511                 if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2512                         /* power down analog mix and vref */
2513                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2514                                              AC97_PD_PR2, AC97_PD_PR2);
2515                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2516                                              AC97_PD_PR3, AC97_PD_PR3);
2517                 }
2518         }
2519 }
2520
2521
2522 #ifdef CONFIG_PM
2523 /**
2524  * snd_ac97_suspend - General suspend function for AC97 codec
2525  * @ac97: the ac97 instance
2526  *
2527  * Suspends the codec, power down the chip.
2528  */
2529 void snd_ac97_suspend(struct snd_ac97 *ac97)
2530 {
2531         if (! ac97)
2532                 return;
2533         if (ac97->build_ops->suspend)
2534                 ac97->build_ops->suspend(ac97);
2535 #ifdef CONFIG_SND_AC97_POWER_SAVE
2536         cancel_delayed_work_sync(&ac97->power_work);
2537 #endif
2538         snd_ac97_powerdown(ac97);
2539 }
2540
2541 EXPORT_SYMBOL(snd_ac97_suspend);
2542
2543 /*
2544  * restore ac97 status
2545  */
2546 static void snd_ac97_restore_status(struct snd_ac97 *ac97)
2547 {
2548         int i;
2549
2550         for (i = 2; i < 0x7c ; i += 2) {
2551                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2552                         continue;
2553                 /* restore only accessible registers
2554                  * some chip (e.g. nm256) may hang up when unsupported registers
2555                  * are accessed..!
2556                  */
2557                 if (test_bit(i, ac97->reg_accessed)) {
2558                         snd_ac97_write(ac97, i, ac97->regs[i]);
2559                         snd_ac97_read(ac97, i);
2560                 }
2561         }
2562 }
2563
2564 /*
2565  * restore IEC958 status
2566  */
2567 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
2568 {
2569         if (ac97->ext_id & AC97_EI_SPDIF) {
2570                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2571                         /* reset spdif status */
2572                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2573                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2574                         if (ac97->flags & AC97_CS_SPDIF)
2575                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2576                         else
2577                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2578                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2579                 }
2580         }
2581 }
2582
2583 /**
2584  * snd_ac97_resume - General resume function for AC97 codec
2585  * @ac97: the ac97 instance
2586  *
2587  * Do the standard resume procedure, power up and restoring the
2588  * old register values.
2589  */
2590 void snd_ac97_resume(struct snd_ac97 *ac97)
2591 {
2592         unsigned long end_time;
2593
2594         if (! ac97)
2595                 return;
2596
2597         if (ac97->bus->ops->reset) {
2598                 ac97->bus->ops->reset(ac97);
2599                 goto  __reset_ready;
2600         }
2601
2602         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2603         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2604                 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2605                         snd_ac97_write(ac97, AC97_RESET, 0);
2606                 else if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2607                         snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2608                 udelay(100);
2609                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2610         }
2611         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2612
2613         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2614         if (ac97_is_audio(ac97)) {
2615                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2616                 end_time = jiffies + msecs_to_jiffies(100);
2617                 do {
2618                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2619                                 break;
2620                         schedule_timeout_uninterruptible(1);
2621                 } while (time_after_eq(end_time, jiffies));
2622                 /* FIXME: extra delay */
2623                 ac97->bus->ops->write(ac97, AC97_MASTER, AC97_MUTE_MASK_MONO);
2624                 if (snd_ac97_read(ac97, AC97_MASTER) != AC97_MUTE_MASK_MONO)
2625                         msleep(250);
2626         } else {
2627                 end_time = jiffies + msecs_to_jiffies(100);
2628                 do {
2629                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2630                         if (val != 0xffff && (val & 1) != 0)
2631                                 break;
2632                         schedule_timeout_uninterruptible(1);
2633                 } while (time_after_eq(end_time, jiffies));
2634         }
2635 __reset_ready:
2636
2637         if (ac97->bus->ops->init)
2638                 ac97->bus->ops->init(ac97);
2639
2640         if (ac97->build_ops->resume)
2641                 ac97->build_ops->resume(ac97);
2642         else {
2643                 snd_ac97_restore_status(ac97);
2644                 snd_ac97_restore_iec958(ac97);
2645         }
2646 }
2647
2648 EXPORT_SYMBOL(snd_ac97_resume);
2649 #endif
2650
2651
2652 /*
2653  * Hardware tuning
2654  */
2655 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2656 {
2657         const size_t msize = SNDRV_CTL_ELEM_ID_NAME_MAXLEN;
2658
2659         if (suffix) {
2660                 if (snprintf(dst, msize, "%s %s", src, suffix) >= msize)
2661                         pr_warn("ALSA: AC97 control name '%s %s' truncated to '%s'\n",
2662                                 src, suffix, dst);
2663         } else {
2664                 if (strscpy(dst, src, msize) < 0)
2665                         pr_warn("ALSA: AC97 control name '%s' truncated to '%s'\n",
2666                                 src, dst);
2667         }
2668 }
2669
2670 /* remove the control with the given name and optional suffix */
2671 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
2672                                const char *suffix)
2673 {
2674         struct snd_ctl_elem_id id;
2675         memset(&id, 0, sizeof(id));
2676         set_ctl_name(id.name, name, suffix);
2677         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2678         return snd_ctl_remove_id(ac97->bus->card, &id);
2679 }
2680
2681 static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
2682 {
2683         struct snd_ctl_elem_id sid;
2684         memset(&sid, 0, sizeof(sid));
2685         set_ctl_name(sid.name, name, suffix);
2686         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2687         return snd_ctl_find_id(ac97->bus->card, &sid);
2688 }
2689
2690 /* rename the control with the given name and optional suffix */
2691 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
2692                                const char *dst, const char *suffix)
2693 {
2694         struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
2695         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
2696
2697         if (kctl) {
2698                 set_ctl_name(name, dst, suffix);
2699                 snd_ctl_rename(ac97->bus->card, kctl, name);
2700                 return 0;
2701         }
2702         return -ENOENT;
2703 }
2704
2705 /* rename both Volume and Switch controls - don't check the return value */
2706 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
2707                                     const char *dst)
2708 {
2709         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2710         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2711 }
2712
2713 /* swap controls */
2714 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
2715                              const char *s2, const char *suffix)
2716 {
2717         struct snd_kcontrol *kctl1, *kctl2;
2718         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
2719
2720         kctl1 = ctl_find(ac97, s1, suffix);
2721         kctl2 = ctl_find(ac97, s2, suffix);
2722         if (kctl1 && kctl2) {
2723                 set_ctl_name(name, s2, suffix);
2724                 snd_ctl_rename(ac97->bus->card, kctl1, name);
2725
2726                 set_ctl_name(name, s1, suffix);
2727                 snd_ctl_rename(ac97->bus->card, kctl2, name);
2728
2729                 return 0;
2730         }
2731         return -ENOENT;
2732 }
2733
2734 #if 1
2735 /* bind hp and master controls instead of using only hp control */
2736 static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2737 {
2738         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2739         if (err > 0) {
2740                 unsigned long priv_saved = kcontrol->private_value;
2741                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2742                 snd_ac97_put_volsw(kcontrol, ucontrol);
2743                 kcontrol->private_value = priv_saved;
2744         }
2745         return err;
2746 }
2747
2748 /* ac97 tune: bind Master and Headphone controls */
2749 static int tune_hp_only(struct snd_ac97 *ac97)
2750 {
2751         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2752         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2753         if (! msw || ! mvol)
2754                 return -ENOENT;
2755         msw->put = bind_hp_volsw_put;
2756         mvol->put = bind_hp_volsw_put;
2757         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2758         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2759         return 0;
2760 }
2761
2762 #else
2763 /* ac97 tune: use Headphone control as master */
2764 static int tune_hp_only(struct snd_ac97 *ac97)
2765 {
2766         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2767                 return -ENOENT;
2768         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2769         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2770         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2771         return 0;
2772 }
2773 #endif
2774
2775 /* ac97 tune: swap Headphone and Master controls */
2776 static int tune_swap_hp(struct snd_ac97 *ac97)
2777 {
2778         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2779                 return -ENOENT;
2780         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2781         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2782         return 0;
2783 }
2784
2785 /* ac97 tune: swap Surround and Master controls */
2786 static int tune_swap_surround(struct snd_ac97 *ac97)
2787 {
2788         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2789             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2790                 return -ENOENT;
2791         return 0;
2792 }
2793
2794 /* ac97 tune: set up mic sharing for AD codecs */
2795 static int tune_ad_sharing(struct snd_ac97 *ac97)
2796 {
2797         unsigned short scfg;
2798         if ((ac97->id & 0xffffff00) != 0x41445300) {
2799                 ac97_err(ac97, "ac97_quirk AD_SHARING is only for AD codecs\n");
2800                 return -EINVAL;
2801         }
2802         /* Turn on OMS bit to route microphone to back panel */
2803         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2804         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2805         return 0;
2806 }
2807
2808 static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
2809 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2810
2811 /* ac97 tune: set up ALC jack-select */
2812 static int tune_alc_jack(struct snd_ac97 *ac97)
2813 {
2814         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2815                 ac97_err(ac97,
2816                          "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2817                 return -EINVAL;
2818         }
2819         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2820         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2821         if (ac97->id == AC97_ID_ALC658D)
2822                 snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
2823         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2824 }
2825
2826 /* ac97 tune: inversed EAPD bit */
2827 static int tune_inv_eapd(struct snd_ac97 *ac97)
2828 {
2829         struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
2830         if (! kctl)
2831                 return -ENOENT;
2832         set_inv_eapd(ac97, kctl);
2833         return 0;
2834 }
2835
2836 static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2837 {
2838         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2839         if (err > 0) {
2840                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2841                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2842                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2843                 unsigned short mask;
2844                 if (shift != rshift)
2845                         mask = AC97_MUTE_MASK_STEREO;
2846                 else
2847                         mask = AC97_MUTE_MASK_MONO;
2848                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2849                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2850                                      AC97_PD_EAPD : 0);
2851         }
2852         return err;
2853 }
2854
2855 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2856 static int tune_mute_led(struct snd_ac97 *ac97)
2857 {
2858         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2859         if (! msw)
2860                 return -ENOENT;
2861         msw->put = master_mute_sw_put;
2862         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2863         snd_ac97_update_bits(
2864                 ac97, AC97_POWERDOWN,
2865                 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2866         );
2867         ac97->scaps |= AC97_SCAP_EAPD_LED;
2868         return 0;
2869 }
2870
2871 static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2872                                  struct snd_ctl_elem_value *ucontrol)
2873 {
2874         int err = bind_hp_volsw_put(kcontrol, ucontrol);
2875         if (err > 0) {
2876                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2877                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2878                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2879                 unsigned short mask;
2880                 if (shift != rshift)
2881                         mask = AC97_MUTE_MASK_STEREO;
2882                 else
2883                         mask = AC97_MUTE_MASK_MONO;
2884                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2885                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2886                                      AC97_PD_EAPD : 0);
2887         }
2888         return err;
2889 }
2890
2891 static int tune_hp_mute_led(struct snd_ac97 *ac97)
2892 {
2893         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2894         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2895         if (! msw || ! mvol)
2896                 return -ENOENT;
2897         msw->put = hp_master_mute_sw_put;
2898         mvol->put = bind_hp_volsw_put;
2899         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2900         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2901         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2902         snd_ac97_update_bits(
2903                 ac97, AC97_POWERDOWN,
2904                 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2905         );
2906         return 0;
2907 }
2908
2909 struct quirk_table {
2910         const char *name;
2911         int (*func)(struct snd_ac97 *);
2912 };
2913
2914 static const struct quirk_table applicable_quirks[] = {
2915         { "none", NULL },
2916         { "hp_only", tune_hp_only },
2917         { "swap_hp", tune_swap_hp },
2918         { "swap_surround", tune_swap_surround },
2919         { "ad_sharing", tune_ad_sharing },
2920         { "alc_jack", tune_alc_jack },
2921         { "inv_eapd", tune_inv_eapd },
2922         { "mute_led", tune_mute_led },
2923         { "hp_mute_led", tune_hp_mute_led },
2924 };
2925
2926 /* apply the quirk with the given type */
2927 static int apply_quirk(struct snd_ac97 *ac97, int type)
2928 {
2929         if (type <= 0)
2930                 return 0;
2931         else if (type >= ARRAY_SIZE(applicable_quirks))
2932                 return -EINVAL;
2933         if (applicable_quirks[type].func)
2934                 return applicable_quirks[type].func(ac97);
2935         return 0;
2936 }
2937
2938 /* apply the quirk with the given name */
2939 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
2940 {
2941         int i;
2942         const struct quirk_table *q;
2943
2944         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2945                 q = &applicable_quirks[i];
2946                 if (q->name && ! strcmp(typestr, q->name))
2947                         return apply_quirk(ac97, i);
2948         }
2949         /* for compatibility, accept the numbers, too */
2950         if (*typestr >= '0' && *typestr <= '9')
2951                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2952         return -EINVAL;
2953 }
2954
2955 /**
2956  * snd_ac97_tune_hardware - tune up the hardware
2957  * @ac97: the ac97 instance
2958  * @quirk: quirk list
2959  * @override: explicit quirk value (overrides the list if non-NULL)
2960  *
2961  * Do some workaround for each pci device, such as renaming of the
2962  * headphone (true line-out) control as "Master".
2963  * The quirk-list must be terminated with a zero-filled entry.
2964  *
2965  * Return: Zero if successful, or a negative error code on failure.
2966  */
2967
2968 int snd_ac97_tune_hardware(struct snd_ac97 *ac97,
2969                            const struct ac97_quirk *quirk, const char *override)
2970 {
2971         int result;
2972
2973         /* quirk overriden? */
2974         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2975                 result = apply_quirk_str(ac97, override);
2976                 if (result < 0)
2977                         ac97_err(ac97, "applying quirk type %s failed (%d)\n",
2978                                  override, result);
2979                 return result;
2980         }
2981
2982         if (! quirk)
2983                 return -EINVAL;
2984
2985         for (; quirk->subvendor; quirk++) {
2986                 if (quirk->subvendor != ac97->subsystem_vendor)
2987                         continue;
2988                 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2989                     quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2990                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2991                                 continue;
2992                         ac97_dbg(ac97, "ac97 quirk for %s (%04x:%04x)\n",
2993                                  quirk->name, ac97->subsystem_vendor,
2994                                  ac97->subsystem_device);
2995                         result = apply_quirk(ac97, quirk->type);
2996                         if (result < 0)
2997                                 ac97_err(ac97,
2998                                          "applying quirk type %d for %s failed (%d)\n",
2999                                          quirk->type, quirk->name, result);
3000                         return result;
3001                 }
3002         }
3003         return 0;
3004 }
3005
3006 EXPORT_SYMBOL(snd_ac97_tune_hardware);