sound/pci/ac97/ac97_codec.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
   3  *  Universal interface for Audio Codec '97
   4  *
   5  *  For more details look to AC '97 component specification revision 2.2
   6  *  by Intel Corporation (http://developer.intel.com).
   7  *
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  *
  23  */
  24
  25 #include <linux/delay.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <linux/pci.h>
  29 #include <linux/module.h>
  30 #include <linux/mutex.h>
  31 #include <sound/core.h>
  32 #include <sound/pcm.h>
  33 #include <sound/tlv.h>
  34 #include <sound/ac97_codec.h>
  35 #include <sound/asoundef.h>
  36 #include <sound/initval.h>
  37 #include "ac97_id.h"
  38
  39 #include "ac97_patch.c"
  40
  41 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
  42 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
  43 MODULE_LICENSE("GPL");
  44
  45 static bool enable_loopback;
  46
  47 module_param(enable_loopback, bool, 0444);
  48 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
  49
  50 #ifdef CONFIG_SND_AC97_POWER_SAVE
  51 static int power_save = CONFIG_SND_AC97_POWER_SAVE_DEFAULT;
  52 module_param(power_save, int, 0644);
  53 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
  54                  "(in second, 0 = disable).");
  55 #endif
  56 /*
  57
  58  */
  59
  60 struct ac97_codec_id {
  61         unsigned int id;
  62         unsigned int mask;
  63         const char *name;
  64         int (*patch)(struct snd_ac97 *ac97);
  65         int (*mpatch)(struct snd_ac97 *ac97);
  66         unsigned int flags;
  67 };
  68
  69 static const struct ac97_codec_id snd_ac97_codec_id_vendors[] = {
  70 { 0x41445300, 0xffffff00, "Analog Devices",     NULL,   NULL },
  71 { 0x414b4d00, 0xffffff00, "Asahi Kasei",        NULL,   NULL },
  72 { 0x414c4300, 0xffffff00, "Realtek",            NULL,   NULL },
  73 { 0x414c4700, 0xffffff00, "Realtek",            NULL,   NULL },
  74 /*
  75  * This is an _inofficial_ Aztech Labs entry
  76  * (value might differ from unknown official Aztech ID),
  77  * currently used by the AC97 emulation of the almost-AC97 PCI168 card.
  78  */
  79 { 0x415a5400, 0xffffff00, "Aztech Labs (emulated)",     NULL,   NULL },
  80 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL,  NULL },
  81 { 0x43525900, 0xffffff00, "Cirrus Logic",       NULL,   NULL },
  82 { 0x43585400, 0xffffff00, "Conexant",           NULL,   NULL },
  83 { 0x44543000, 0xffffff00, "Diamond Technology", NULL,   NULL },
  84 { 0x454d4300, 0xffffff00, "eMicro",             NULL,   NULL },
  85 { 0x45838300, 0xffffff00, "ESS Technology",     NULL,   NULL },
  86 { 0x48525300, 0xffffff00, "Intersil",           NULL,   NULL },
  87 { 0x49434500, 0xffffff00, "ICEnsemble",         NULL,   NULL },
  88 { 0x49544500, 0xffffff00, "ITE Tech.Inc",       NULL,   NULL },
  89 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
  90 { 0x50534300, 0xffffff00, "Philips",            NULL,   NULL },
  91 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL,   NULL },
  92 { 0x53544d00, 0xffffff00, "STMicroelectronics", NULL,   NULL },
  93 { 0x54524100, 0xffffff00, "TriTech",            NULL,   NULL },
  94 { 0x54584e00, 0xffffff00, "Texas Instruments",  NULL,   NULL },
  95 { 0x56494100, 0xffffff00, "VIA Technologies",   NULL,   NULL },
  96 { 0x57454300, 0xffffff00, "Winbond",            NULL,   NULL },
  97 { 0x574d4c00, 0xffffff00, "Wolfson",            NULL,   NULL },
  98 { 0x594d4800, 0xffffff00, "Yamaha",             NULL,   NULL },
  99 { 0x83847600, 0xffffff00, "SigmaTel",           NULL,   NULL },
 100 { 0,          0,          NULL,                 NULL,   NULL }
 101 };
 102
 103 static const struct ac97_codec_id snd_ac97_codec_ids[] = {
 104 { 0x41445303, 0xffffffff, "AD1819",             patch_ad1819,   NULL },
 105 { 0x41445340, 0xffffffff, "AD1881",             patch_ad1881,   NULL },
 106 { 0x41445348, 0xffffffff, "AD1881A",            patch_ad1881,   NULL },
 107 { 0x41445360, 0xffffffff, "AD1885",             patch_ad1885,   NULL },
 108 { 0x41445361, 0xffffffff, "AD1886",             patch_ad1886,   NULL },
 109 { 0x41445362, 0xffffffff, "AD1887",             patch_ad1881,   NULL },
 110 { 0x41445363, 0xffffffff, "AD1886A",            patch_ad1881,   NULL },
 111 { 0x41445368, 0xffffffff, "AD1888",             patch_ad1888,   NULL },
 112 { 0x41445370, 0xffffffff, "AD1980",             patch_ad1980,   NULL },
 113 { 0x41445372, 0xffffffff, "AD1981A",            patch_ad1981a,  NULL },
 114 { 0x41445374, 0xffffffff, "AD1981B",            patch_ad1981b,  NULL },
 115 { 0x41445375, 0xffffffff, "AD1985",             patch_ad1985,   NULL },
 116 { 0x41445378, 0xffffffff, "AD1986",             patch_ad1986,   NULL },
 117 { 0x414b4d00, 0xffffffff, "AK4540",             NULL,           NULL },
 118 { 0x414b4d01, 0xffffffff, "AK4542",             NULL,           NULL },
 119 { 0x414b4d02, 0xffffffff, "AK4543",             NULL,           NULL },
 120 { 0x414b4d06, 0xffffffff, "AK4544A",            NULL,           NULL },
 121 { 0x414b4d07, 0xffffffff, "AK4545",             NULL,           NULL },
 122 { 0x414c4300, 0xffffff00, "ALC100,100P",        NULL,           NULL },
 123 { 0x414c4710, 0xfffffff0, "ALC200,200P",        NULL,           NULL },
 124 { 0x414c4721, 0xffffffff, "ALC650D",            NULL,   NULL }, /* already patched */
 125 { 0x414c4722, 0xffffffff, "ALC650E",            NULL,   NULL }, /* already patched */
 126 { 0x414c4723, 0xffffffff, "ALC650F",            NULL,   NULL }, /* already patched */
 127 { 0x414c4720, 0xfffffff0, "ALC650",             patch_alc650,   NULL },
 128 { 0x414c4730, 0xffffffff, "ALC101",             NULL,           NULL },
 129 { 0x414c4740, 0xfffffff0, "ALC202",             NULL,           NULL },
 130 { 0x414c4750, 0xfffffff0, "ALC250",             NULL,           NULL },
 131 { 0x414c4760, 0xfffffff0, "ALC655",             patch_alc655,   NULL },
 132 { 0x414c4770, 0xfffffff0, "ALC203",             patch_alc203,   NULL },
 133 { 0x414c4781, 0xffffffff, "ALC658D",            NULL,   NULL }, /* already patched */
 134 { 0x414c4780, 0xfffffff0, "ALC658",             patch_alc655,   NULL },
 135 { 0x414c4790, 0xfffffff0, "ALC850",             patch_alc850,   NULL },
 136 { 0x415a5401, 0xffffffff, "AZF3328",            patch_aztech_azf3328,   NULL },
 137 { 0x434d4941, 0xffffffff, "CMI9738",            patch_cm9738,   NULL },
 138 { 0x434d4961, 0xffffffff, "CMI9739",            patch_cm9739,   NULL },
 139 { 0x434d4969, 0xffffffff, "CMI9780",            patch_cm9780,   NULL },
 140 { 0x434d4978, 0xffffffff, "CMI9761A",           patch_cm9761,   NULL },
 141 { 0x434d4982, 0xffffffff, "CMI9761B",           patch_cm9761,   NULL },
 142 { 0x434d4983, 0xffffffff, "CMI9761A+",          patch_cm9761,   NULL },
 143 { 0x43525900, 0xfffffff8, "CS4297",             NULL,           NULL },
 144 { 0x43525910, 0xfffffff8, "CS4297A",            patch_cirrus_spdif,     NULL },
 145 { 0x43525920, 0xfffffff8, "CS4298",             patch_cirrus_spdif,             NULL },
 146 { 0x43525928, 0xfffffff8, "CS4294",             NULL,           NULL },
 147 { 0x43525930, 0xfffffff8, "CS4299",             patch_cirrus_cs4299,    NULL },
 148 { 0x43525948, 0xfffffff8, "CS4201",             NULL,           NULL },
 149 { 0x43525958, 0xfffffff8, "CS4205",             patch_cirrus_spdif,     NULL },
 150 { 0x43525960, 0xfffffff8, "CS4291",             NULL,           NULL },
 151 { 0x43525970, 0xfffffff8, "CS4202",             NULL,           NULL },
 152 { 0x43585421, 0xffffffff, "HSD11246",           NULL,           NULL }, // SmartMC II
 153 { 0x43585428, 0xfffffff8, "Cx20468",            patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
 154 { 0x43585430, 0xffffffff, "Cx20468-31",         patch_conexant, NULL },
 155 { 0x43585431, 0xffffffff, "Cx20551",           patch_cx20551,  NULL },
 156 { 0x44543031, 0xfffffff0, "DT0398",             NULL,           NULL },
 157 { 0x454d4328, 0xffffffff, "EM28028",            NULL,           NULL },  // same as TR28028?
 158 { 0x45838308, 0xffffffff, "ESS1988",            NULL,           NULL },
 159 { 0x48525300, 0xffffff00, "HMP9701",            NULL,           NULL },
 160 { 0x49434501, 0xffffffff, "ICE1230",            NULL,           NULL },
 161 { 0x49434511, 0xffffffff, "ICE1232",            NULL,           NULL }, // alias VIA VT1611A?
 162 { 0x49434514, 0xffffffff, "ICE1232A",           NULL,           NULL },
 163 { 0x49434551, 0xffffffff, "VT1616",             patch_vt1616,   NULL },
 164 { 0x49434552, 0xffffffff, "VT1616i",            patch_vt1616,   NULL }, // VT1616 compatible (chipset integrated)
 165 { 0x49544520, 0xffffffff, "IT2226E",            NULL,           NULL },
 166 { 0x49544561, 0xffffffff, "IT2646E",            patch_it2646,   NULL },
 167 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL,           NULL }, // only guess --jk
 168 { 0x4e534331, 0xffffffff, "LM4549",             NULL,           NULL },
 169 { 0x4e534350, 0xffffffff, "LM4550",             patch_lm4550,   NULL }, // volume wrap fix
 170 { 0x50534304, 0xffffffff, "UCB1400",            patch_ucb1400,  NULL },
 171 { 0x53494c20, 0xffffffe0, "Si3036,8",           mpatch_si3036,  mpatch_si3036, AC97_MODEM_PATCH },
 172 { 0x53544d02, 0xffffffff, "ST7597",             NULL,           NULL },
 173 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
 174 { 0x54524103, 0xffffffff, "TR28023",            NULL,           NULL },
 175 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
 176 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
 177 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 178 { 0x54584e03, 0xffffffff, "TLV320AIC27",        NULL,           NULL },
 179 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
 180 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
 181 { 0x56494170, 0xffffffff, "VIA1617A",           patch_vt1617a,  NULL }, // modified VT1616 with S/PDIF
 182 { 0x56494182, 0xffffffff, "VIA1618",            patch_vt1618,   NULL },
 183 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
 184 { 0x574d4c00, 0xffffffff, "WM9701,WM9701A",     NULL,           NULL },
 185 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
 186 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
 187 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
 188 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
 189 { 0x574d4C12, 0xffffffff, "WM9711,WM9712,WM9715",       patch_wolfson11, NULL},
 190 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
 191 { 0x594d4800, 0xffffffff, "YMF743",             patch_yamaha_ymf743,    NULL },
 192 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
 193 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
 194 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
 195 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
 196 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
 197 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
 198 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
 199 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
 200 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
 201 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
 202 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
 203 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
 204 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
 205 { 0,          0,          NULL,                 NULL,           NULL }
 206 };
 207
 208
 209 static void update_power_regs(struct snd_ac97 *ac97);
 210 #ifdef CONFIG_SND_AC97_POWER_SAVE
 211 #define ac97_is_power_save_mode(ac97) \
 212         ((ac97->scaps & AC97_SCAP_POWER_SAVE) && power_save)
 213 #else
 214 #define ac97_is_power_save_mode(ac97) 0
 215 #endif
 216
 217 #define ac97_err(ac97, fmt, args...)    \
 218         dev_err((ac97)->bus->card->dev, fmt, ##args)
 219 #define ac97_warn(ac97, fmt, args...)   \
 220         dev_warn((ac97)->bus->card->dev, fmt, ##args)
 221 #define ac97_dbg(ac97, fmt, args...)    \
 222         dev_dbg((ac97)->bus->card->dev, fmt, ##args)
 223
 224 /*
 225  *  I/O routines
 226  */
 227
 228 static int snd_ac97_valid_reg(struct snd_ac97 *ac97, unsigned short reg)
 229 {
 230         /* filter some registers for buggy codecs */
 231         switch (ac97->id) {
 232         case AC97_ID_ST_AC97_ID4:
 233                 if (reg == 0x08)
 234                         return 0;
 235                 /* fall through */
 236         case AC97_ID_ST7597:
 237                 if (reg == 0x22 || reg == 0x7a)
 238                         return 1;
 239                 /* fall through */
 240         case AC97_ID_AK4540:
 241         case AC97_ID_AK4542:
 242                 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
 243                         return 1;
 244                 return 0;
 245         case AC97_ID_AD1819:    /* AD1819 */
 246         case AC97_ID_AD1881:    /* AD1881 */
 247         case AC97_ID_AD1881A:   /* AD1881A */
 248                 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
 249                         return 0;
 250                 return 1;
 251         case AC97_ID_AD1885:    /* AD1885 */
 252         case AC97_ID_AD1886:    /* AD1886 */
 253         case AC97_ID_AD1886A:   /* AD1886A - !!verify!! --jk */
 254         case AC97_ID_AD1887:    /* AD1887 - !!verify!! --jk */
 255                 if (reg == 0x5a)
 256                         return 1;
 257                 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
 258                         return 0;
 259                 return 1;
 260         case AC97_ID_STAC9700:
 261         case AC97_ID_STAC9704:
 262         case AC97_ID_STAC9705:
 263         case AC97_ID_STAC9708:
 264         case AC97_ID_STAC9721:
 265         case AC97_ID_STAC9744:
 266         case AC97_ID_STAC9756:
 267                 if (reg <= 0x3a || reg >= 0x5a)
 268                         return 1;
 269                 return 0;
 270         }
 271         return 1;
 272 }
 273
 274 /**
 275  * snd_ac97_write - write a value on the given register
 276  * @ac97: the ac97 instance
 277  * @reg: the register to change
 278  * @value: the value to set
 279  *
 280  * Writes a value on the given register.  This will invoke the write
 281  * callback directly after the register check.
 282  * This function doesn't change the register cache unlike
 283  * #snd_ca97_write_cache(), so use this only when you don't want to
 284  * reflect the change to the suspend/resume state.
 285  */
 286 void snd_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 287 {
 288         if (!snd_ac97_valid_reg(ac97, reg))
 289                 return;
 290         if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
 291                 /* Fix H/W bug of ALC100/100P */
 292                 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
 293                         ac97->bus->ops->write(ac97, AC97_RESET, 0);     /* reset audio codec */
 294         }
 295         ac97->bus->ops->write(ac97, reg, value);
 296 }
 297
 298 EXPORT_SYMBOL(snd_ac97_write);
 299
 300 /**
 301  * snd_ac97_read - read a value from the given register
 302  *
 303  * @ac97: the ac97 instance
 304  * @reg: the register to read
 305  *
 306  * Reads a value from the given register.  This will invoke the read
 307  * callback directly after the register check.
 308  *
 309  * Return: The read value.
 310  */
 311 unsigned short snd_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
 312 {
 313         if (!snd_ac97_valid_reg(ac97, reg))
 314                 return 0;
 315         return ac97->bus->ops->read(ac97, reg);
 316 }
 317
 318 /* read a register - return the cached value if already read */
 319 static inline unsigned short snd_ac97_read_cache(struct snd_ac97 *ac97, unsigned short reg)
 320 {
 321         if (! test_bit(reg, ac97->reg_accessed)) {
 322                 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
 323                 // set_bit(reg, ac97->reg_accessed);
 324         }
 325         return ac97->regs[reg];
 326 }
 327
 328 EXPORT_SYMBOL(snd_ac97_read);
 329
 330 /**
 331  * snd_ac97_write_cache - write a value on the given register and update the cache
 332  * @ac97: the ac97 instance
 333  * @reg: the register to change
 334  * @value: the value to set
 335  *
 336  * Writes a value on the given register and updates the register
 337  * cache.  The cached values are used for the cached-read and the
 338  * suspend/resume.
 339  */
 340 void snd_ac97_write_cache(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 341 {
 342         if (!snd_ac97_valid_reg(ac97, reg))
 343                 return;
 344         mutex_lock(&ac97->reg_mutex);
 345         ac97->regs[reg] = value;
 346         ac97->bus->ops->write(ac97, reg, value);
 347         set_bit(reg, ac97->reg_accessed);
 348         mutex_unlock(&ac97->reg_mutex);
 349 }
 350
 351 EXPORT_SYMBOL(snd_ac97_write_cache);
 352
 353 /**
 354  * snd_ac97_update - update the value on the given register
 355  * @ac97: the ac97 instance
 356  * @reg: the register to change
 357  * @value: the value to set
 358  *
 359  * Compares the value with the register cache and updates the value
 360  * only when the value is changed.
 361  *
 362  * Return: 1 if the value is changed, 0 if no change, or a negative
 363  * code on failure.
 364  */
 365 int snd_ac97_update(struct snd_ac97 *ac97, unsigned short reg, unsigned short value)
 366 {
 367         int change;
 368
 369         if (!snd_ac97_valid_reg(ac97, reg))
 370                 return -EINVAL;
 371         mutex_lock(&ac97->reg_mutex);
 372         change = ac97->regs[reg] != value;
 373         if (change) {
 374                 ac97->regs[reg] = value;
 375                 ac97->bus->ops->write(ac97, reg, value);
 376         }
 377         set_bit(reg, ac97->reg_accessed);
 378         mutex_unlock(&ac97->reg_mutex);
 379         return change;
 380 }
 381
 382 EXPORT_SYMBOL(snd_ac97_update);
 383
 384 /**
 385  * snd_ac97_update_bits - update the bits on the given register
 386  * @ac97: the ac97 instance
 387  * @reg: the register to change
 388  * @mask: the bit-mask to change
 389  * @value: the value to set
 390  *
 391  * Updates the masked-bits on the given register only when the value
 392  * is changed.
 393  *
 394  * Return: 1 if the bits are changed, 0 if no change, or a negative
 395  * code on failure.
 396  */
 397 int snd_ac97_update_bits(struct snd_ac97 *ac97, unsigned short reg, unsigned short mask, unsigned short value)
 398 {
 399         int change;
 400
 401         if (!snd_ac97_valid_reg(ac97, reg))
 402                 return -EINVAL;
 403         mutex_lock(&ac97->reg_mutex);
 404         change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 405         mutex_unlock(&ac97->reg_mutex);
 406         return change;
 407 }
 408
 409 EXPORT_SYMBOL(snd_ac97_update_bits);
 410
 411 /* no lock version - see snd_ac97_update_bits() */
 412 int snd_ac97_update_bits_nolock(struct snd_ac97 *ac97, unsigned short reg,
 413                                 unsigned short mask, unsigned short value)
 414 {
 415         int change;
 416         unsigned short old, new;
 417
 418         old = snd_ac97_read_cache(ac97, reg);
 419         new = (old & ~mask) | (value & mask);
 420         change = old != new;
 421         if (change) {
 422                 ac97->regs[reg] = new;
 423                 ac97->bus->ops->write(ac97, reg, new);
 424         }
 425         set_bit(reg, ac97->reg_accessed);
 426         return change;
 427 }
 428
 429 static int snd_ac97_ad18xx_update_pcm_bits(struct snd_ac97 *ac97, int codec, unsigned short mask, unsigned short value)
 430 {
 431         int change;
 432         unsigned short old, new, cfg;
 433
 434         mutex_lock(&ac97->page_mutex);
 435         old = ac97->spec.ad18xx.pcmreg[codec];
 436         new = (old & ~mask) | (value & mask);
 437         change = old != new;
 438         if (change) {
 439                 mutex_lock(&ac97->reg_mutex);
 440                 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
 441                 ac97->spec.ad18xx.pcmreg[codec] = new;
 442                 /* select single codec */
 443                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 444                                  (cfg & ~0x7000) |
 445                                  ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
 446                 /* update PCM bits */
 447                 ac97->bus->ops->write(ac97, AC97_PCM, new);
 448                 /* select all codecs */
 449                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 450                                  cfg | 0x7000);
 451                 mutex_unlock(&ac97->reg_mutex);
 452         }
 453         mutex_unlock(&ac97->page_mutex);
 454         return change;
 455 }
 456
 457 /*
 458  * Controls
 459  */
 460
 461 static int snd_ac97_info_enum_double(struct snd_kcontrol *kcontrol,
 462                                      struct snd_ctl_elem_info *uinfo)
 463 {
 464         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 465
 466         return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
 467                                  e->mask, e->texts);
 468 }
 469
 470 static int snd_ac97_get_enum_double(struct snd_kcontrol *kcontrol,
 471                                     struct snd_ctl_elem_value *ucontrol)
 472 {
 473         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 474         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 475         unsigned short val, bitmask;
 476
 477         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 478                 ;
 479         val = snd_ac97_read_cache(ac97, e->reg);
 480         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
 481         if (e->shift_l != e->shift_r)
 482                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
 483
 484         return 0;
 485 }
 486
 487 static int snd_ac97_put_enum_double(struct snd_kcontrol *kcontrol,
 488                                     struct snd_ctl_elem_value *ucontrol)
 489 {
 490         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 491         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 492         unsigned short val;
 493         unsigned short mask, bitmask;
 494
 495         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 496                 ;
 497         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
 498                 return -EINVAL;
 499         val = ucontrol->value.enumerated.item[0] << e->shift_l;
 500         mask = (bitmask - 1) << e->shift_l;
 501         if (e->shift_l != e->shift_r) {
 502                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
 503                         return -EINVAL;
 504                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
 505                 mask |= (bitmask - 1) << e->shift_r;
 506         }
 507         return snd_ac97_update_bits(ac97, e->reg, mask, val);
 508 }
 509
 510 /* save/restore ac97 v2.3 paging */
 511 static int snd_ac97_page_save(struct snd_ac97 *ac97, int reg, struct snd_kcontrol *kcontrol)
 512 {
 513         int page_save = -1;
 514         if ((kcontrol->private_value & (1<<25)) &&
 515             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
 516             (reg >= 0x60 && reg < 0x70)) {
 517                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
 518                 mutex_lock(&ac97->page_mutex); /* lock paging */
 519                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
 520                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
 521         }
 522         return page_save;
 523 }
 524
 525 static void snd_ac97_page_restore(struct snd_ac97 *ac97, int page_save)
 526 {
 527         if (page_save >= 0) {
 528                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
 529                 mutex_unlock(&ac97->page_mutex); /* unlock paging */
 530         }
 531 }
 532
 533 /* volume and switch controls */
 534 static int snd_ac97_info_volsw(struct snd_kcontrol *kcontrol,
 535                                struct snd_ctl_elem_info *uinfo)
 536 {
 537         int mask = (kcontrol->private_value >> 16) & 0xff;
 538         int shift = (kcontrol->private_value >> 8) & 0x0f;
 539         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 540
 541         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 542         uinfo->count = shift == rshift ? 1 : 2;
 543         uinfo->value.integer.min = 0;
 544         uinfo->value.integer.max = mask;
 545         return 0;
 546 }
 547
 548 static int snd_ac97_get_volsw(struct snd_kcontrol *kcontrol,
 549                               struct snd_ctl_elem_value *ucontrol)
 550 {
 551         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 552         int reg = kcontrol->private_value & 0xff;
 553         int shift = (kcontrol->private_value >> 8) & 0x0f;
 554         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 555         int mask = (kcontrol->private_value >> 16) & 0xff;
 556         int invert = (kcontrol->private_value >> 24) & 0x01;
 557         int page_save;
 558
 559         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 560         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
 561         if (shift != rshift)
 562                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
 563         if (invert) {
 564                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 565                 if (shift != rshift)
 566                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 567         }
 568         snd_ac97_page_restore(ac97, page_save);
 569         return 0;
 570 }
 571
 572 static int snd_ac97_put_volsw(struct snd_kcontrol *kcontrol,
 573                               struct snd_ctl_elem_value *ucontrol)
 574 {
 575         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 576         int reg = kcontrol->private_value & 0xff;
 577         int shift = (kcontrol->private_value >> 8) & 0x0f;
 578         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 579         int mask = (kcontrol->private_value >> 16) & 0xff;
 580         int invert = (kcontrol->private_value >> 24) & 0x01;
 581         int err, page_save;
 582         unsigned short val, val2, val_mask;
 583
 584         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 585         val = (ucontrol->value.integer.value[0] & mask);
 586         if (invert)
 587                 val = mask - val;
 588         val_mask = mask << shift;
 589         val = val << shift;
 590         if (shift != rshift) {
 591                 val2 = (ucontrol->value.integer.value[1] & mask);
 592                 if (invert)
 593                         val2 = mask - val2;
 594                 val_mask |= mask << rshift;
 595                 val |= val2 << rshift;
 596         }
 597         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
 598         snd_ac97_page_restore(ac97, page_save);
 599 #ifdef CONFIG_SND_AC97_POWER_SAVE
 600         /* check analog mixer power-down */
 601         if ((val_mask & AC97_PD_EAPD) &&
 602             (kcontrol->private_value & (1<<30))) {
 603                 if (val & AC97_PD_EAPD)
 604                         ac97->power_up &= ~(1 << (reg>>1));
 605                 else
 606                         ac97->power_up |= 1 << (reg>>1);
 607                 update_power_regs(ac97);
 608         }
 609 #endif
 610         return err;
 611 }
 612
 613 static const struct snd_kcontrol_new snd_ac97_controls_master_mono[2] = {
 614 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
 615 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
 616 };
 617
 618 static const struct snd_kcontrol_new snd_ac97_controls_tone[2] = {
 619 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
 620 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
 621 };
 622
 623 static const struct snd_kcontrol_new snd_ac97_controls_pc_beep[2] = {
 624 AC97_SINGLE("Beep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 625 AC97_SINGLE("Beep Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 626 };
 627
 628 static const struct snd_kcontrol_new snd_ac97_controls_mic_boost =
 629         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
 630
 631
 632 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
 633 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
 634 static const char* std_mix[] = {"Mix", "Mic"};
 635 static const char* std_mic[] = {"Mic1", "Mic2"};
 636
 637 static const struct ac97_enum std_enum[] = {
 638 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
 639 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
 640 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
 641 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
 642 };
 643
 644 static const struct snd_kcontrol_new snd_ac97_control_capture_src =
 645 AC97_ENUM("Capture Source", std_enum[0]);
 646
 647 static const struct snd_kcontrol_new snd_ac97_control_capture_vol =
 648 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
 649
 650 static const struct snd_kcontrol_new snd_ac97_controls_mic_capture[2] = {
 651 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
 652 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
 653 };
 654
 655 enum {
 656         AC97_GENERAL_PCM_OUT = 0,
 657         AC97_GENERAL_STEREO_ENHANCEMENT,
 658         AC97_GENERAL_3D,
 659         AC97_GENERAL_LOUDNESS,
 660         AC97_GENERAL_MONO,
 661         AC97_GENERAL_MIC,
 662         AC97_GENERAL_LOOPBACK
 663 };
 664
 665 static const struct snd_kcontrol_new snd_ac97_controls_general[7] = {
 666 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
 667 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
 668 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 669 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
 670 AC97_ENUM("Mono Output Select", std_enum[2]),
 671 AC97_ENUM("Mic Select", std_enum[3]),
 672 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
 673 };
 674
 675 static const struct snd_kcontrol_new snd_ac97_controls_3d[2] = {
 676 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
 677 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
 678 };
 679
 680 static const struct snd_kcontrol_new snd_ac97_controls_center[2] = {
 681 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
 682 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
 683 };
 684
 685 static const struct snd_kcontrol_new snd_ac97_controls_lfe[2] = {
 686 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
 687 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
 688 };
 689
 690 static const struct snd_kcontrol_new snd_ac97_control_eapd =
 691 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
 692
 693 static const struct snd_kcontrol_new snd_ac97_controls_modem_switches[2] = {
 694 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
 695 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
 696 };
 697
 698 /* change the existing EAPD control as inverted */
 699 static void set_inv_eapd(struct snd_ac97 *ac97, struct snd_kcontrol *kctl)
 700 {
 701         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
 702         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
 703         ac97->scaps |= AC97_SCAP_INV_EAPD;
 704 }
 705
 706 static int snd_ac97_spdif_mask_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 707 {
 708         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 709         uinfo->count = 1;
 710         return 0;
 711 }
 712
 713 static int snd_ac97_spdif_cmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 714 {
 715         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 716                                            IEC958_AES0_NONAUDIO |
 717                                            IEC958_AES0_CON_EMPHASIS_5015 |
 718                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 719         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 720                                            IEC958_AES1_CON_ORIGINAL;
 721         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 722         return 0;
 723 }
 724
 725 static int snd_ac97_spdif_pmask_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 726 {
 727         /* FIXME: AC'97 spec doesn't say which bits are used for what */
 728         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 729                                            IEC958_AES0_NONAUDIO |
 730                                            IEC958_AES0_PRO_FS |
 731                                            IEC958_AES0_PRO_EMPHASIS_5015;
 732         return 0;
 733 }
 734
 735 static int snd_ac97_spdif_default_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 736 {
 737         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 738
 739         mutex_lock(&ac97->reg_mutex);
 740         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
 741         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
 742         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
 743         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
 744         mutex_unlock(&ac97->reg_mutex);
 745         return 0;
 746 }
 747
 748 static int snd_ac97_spdif_default_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 749 {
 750         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 751         unsigned int new = 0;
 752         unsigned short val = 0;
 753         int change;
 754
 755         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
 756         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
 757                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
 758                 switch (new & IEC958_AES0_PRO_FS) {
 759                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
 760                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
 761                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
 762                 default:                       val |= 1<<12; break;
 763                 }
 764                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 765                         val |= 1<<3;
 766         } else {
 767                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
 768                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
 769                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
 770                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 771                         val |= 1<<3;
 772                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
 773                         val |= 1<<2;
 774                 val |= ((new >> 8) & 0xff) << 4;        // category + original
 775                 switch ((new >> 24) & 0xff) {
 776                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
 777                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
 778                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
 779                 default:                       val |= 1<<12; break;
 780                 }
 781         }
 782
 783         mutex_lock(&ac97->reg_mutex);
 784         change = ac97->spdif_status != new;
 785         ac97->spdif_status = new;
 786
 787         if (ac97->flags & AC97_CS_SPDIF) {
 788                 int x = (val >> 12) & 0x03;
 789                 switch (x) {
 790                 case 0: x = 1; break;  // 44.1
 791                 case 2: x = 0; break;  // 48.0
 792                 default: x = 0; break; // illegal.
 793                 }
 794                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
 795         } else if (ac97->flags & AC97_CX_SPDIF) {
 796                 int v;
 797                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
 798                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
 799                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
 800                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
 801                                                       v);
 802         } else if (ac97->id == AC97_ID_YMF743) {
 803                 change |= snd_ac97_update_bits_nolock(ac97,
 804                                                       AC97_YMF7X3_DIT_CTRL,
 805                                                       0xff38,
 806                                                       ((val << 4) & 0xff00) |
 807                                                       ((val << 2) & 0x0038));
 808         } else {
 809                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 810                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 811
 812                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
 813                 if (extst & AC97_EA_SPDIF) {
 814                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 815                 }
 816         }
 817         mutex_unlock(&ac97->reg_mutex);
 818
 819         return change;
 820 }
 821
 822 static int snd_ac97_put_spsa(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 823 {
 824         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 825         int reg = kcontrol->private_value & 0xff;
 826         int shift = (kcontrol->private_value >> 8) & 0xff;
 827         int mask = (kcontrol->private_value >> 16) & 0xff;
 828         // int invert = (kcontrol->private_value >> 24) & 0xff;
 829         unsigned short value, old, new;
 830         int change;
 831
 832         value = (ucontrol->value.integer.value[0] & mask);
 833
 834         mutex_lock(&ac97->reg_mutex);
 835         mask <<= shift;
 836         value <<= shift;
 837         old = snd_ac97_read_cache(ac97, reg);
 838         new = (old & ~mask) | value;
 839         change = old != new;
 840
 841         if (change) {
 842                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 843                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 844                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 845                 if (extst & AC97_EA_SPDIF)
 846                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 847         }
 848         mutex_unlock(&ac97->reg_mutex);
 849         return change;
 850 }
 851
 852 static const struct snd_kcontrol_new snd_ac97_controls_spdif[5] = {
 853         {
 854                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 855                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 856                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 857                 .info = snd_ac97_spdif_mask_info,
 858                 .get = snd_ac97_spdif_cmask_get,
 859         },
 860         {
 861                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 862                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 863                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 864                 .info = snd_ac97_spdif_mask_info,
 865                 .get = snd_ac97_spdif_pmask_get,
 866         },
 867         {
 868                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 869                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 870                 .info = snd_ac97_spdif_mask_info,
 871                 .get = snd_ac97_spdif_default_get,
 872                 .put = snd_ac97_spdif_default_put,
 873         },
 874
 875         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
 876         {
 877                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 878                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
 879                 .info = snd_ac97_info_volsw,
 880                 .get = snd_ac97_get_volsw,
 881                 .put = snd_ac97_put_spsa,
 882                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
 883         },
 884 };
 885
 886 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
 887 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
 888   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
 889   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
 890
 891 static int snd_ac97_ad18xx_pcm_info_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 892 {
 893         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 894         int mask = (kcontrol->private_value >> 16) & 0x0f;
 895         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 896         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 897
 898         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 899         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 900                 uinfo->count = 2;
 901         else
 902                 uinfo->count = 1;
 903         uinfo->value.integer.min = 0;
 904         uinfo->value.integer.max = mask;
 905         return 0;
 906 }
 907
 908 static int snd_ac97_ad18xx_pcm_get_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 909 {
 910         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 911         int codec = kcontrol->private_value & 3;
 912         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 913         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 914         int mask = (kcontrol->private_value >> 16) & 0xff;
 915
 916         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
 917         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 918                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
 919         return 0;
 920 }
 921
 922 static int snd_ac97_ad18xx_pcm_put_bits(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 923 {
 924         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 925         int codec = kcontrol->private_value & 3;
 926         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 927         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 928         int mask = (kcontrol->private_value >> 16) & 0xff;
 929         unsigned short val, valmask;
 930
 931         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
 932         valmask = mask << lshift;
 933         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
 934                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
 935                 valmask |= mask << rshift;
 936         }
 937         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
 938 }
 939
 940 #define AD18XX_PCM_VOLUME(xname, codec) \
 941 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
 942   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
 943   .private_value = codec }
 944
 945 static int snd_ac97_ad18xx_pcm_info_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
 946 {
 947         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 948         uinfo->count = 2;
 949         uinfo->value.integer.min = 0;
 950         uinfo->value.integer.max = 31;
 951         return 0;
 952 }
 953
 954 static int snd_ac97_ad18xx_pcm_get_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 955 {
 956         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 957         int codec = kcontrol->private_value & 3;
 958
 959         mutex_lock(&ac97->page_mutex);
 960         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
 961         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
 962         mutex_unlock(&ac97->page_mutex);
 963         return 0;
 964 }
 965
 966 static int snd_ac97_ad18xx_pcm_put_volume(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 967 {
 968         struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
 969         int codec = kcontrol->private_value & 3;
 970         unsigned short val1, val2;
 971
 972         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
 973         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
 974         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
 975 }
 976
 977 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_pcm[2] = {
 978 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
 979 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
 980 };
 981
 982 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_surround[2] = {
 983 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
 984 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
 985 };
 986
 987 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_center[2] = {
 988 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
 989 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
 990 };
 991
 992 static const struct snd_kcontrol_new snd_ac97_controls_ad18xx_lfe[2] = {
 993 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
 994 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
 995 };
 996
 997 /*
 998  *
 999  */
1000
1001 static void snd_ac97_powerdown(struct snd_ac97 *ac97);
1002
1003 static int snd_ac97_bus_free(struct snd_ac97_bus *bus)
1004 {
1005         if (bus) {
1006                 snd_ac97_bus_proc_done(bus);
1007                 kfree(bus->pcms);
1008                 if (bus->private_free)
1009                         bus->private_free(bus);
1010                 kfree(bus);
1011         }
1012         return 0;
1013 }
1014
1015 static int snd_ac97_bus_dev_free(struct snd_device *device)
1016 {
1017         struct snd_ac97_bus *bus = device->device_data;
1018         return snd_ac97_bus_free(bus);
1019 }
1020
1021 static int snd_ac97_free(struct snd_ac97 *ac97)
1022 {
1023         if (ac97) {
1024 #ifdef CONFIG_SND_AC97_POWER_SAVE
1025                 cancel_delayed_work_sync(&ac97->power_work);
1026 #endif
1027                 snd_ac97_proc_done(ac97);
1028                 if (ac97->bus)
1029                         ac97->bus->codec[ac97->num] = NULL;
1030                 if (ac97->private_free)
1031                         ac97->private_free(ac97);
1032                 kfree(ac97);
1033         }
1034         return 0;
1035 }
1036
1037 static int snd_ac97_dev_free(struct snd_device *device)
1038 {
1039         struct snd_ac97 *ac97 = device->device_data;
1040         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1041         return snd_ac97_free(ac97);
1042 }
1043
1044 static int snd_ac97_try_volume_mix(struct snd_ac97 * ac97, int reg)
1045 {
1046         unsigned short val, mask = AC97_MUTE_MASK_MONO;
1047
1048         if (! snd_ac97_valid_reg(ac97, reg))
1049                 return 0;
1050
1051         switch (reg) {
1052         case AC97_MASTER_TONE:
1053                 return ac97->caps & AC97_BC_BASS_TREBLE ? 1 : 0;
1054         case AC97_HEADPHONE:
1055                 return ac97->caps & AC97_BC_HEADPHONE ? 1 : 0;
1056         case AC97_REC_GAIN_MIC:
1057                 return ac97->caps & AC97_BC_DEDICATED_MIC ? 1 : 0;
1058         case AC97_3D_CONTROL:
1059                 if (ac97->caps & AC97_BC_3D_TECH_ID_MASK) {
1060                         val = snd_ac97_read(ac97, reg);
1061                         /* if nonzero - fixed and we can't set it */
1062                         return val == 0;
1063                 }
1064                 return 0;
1065         case AC97_CENTER_LFE_MASTER:    /* center */
1066                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1067                         return 0;
1068                 break;
1069         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1070                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1071                         return 0;
1072                 reg = AC97_CENTER_LFE_MASTER;
1073                 mask = 0x0080;
1074                 break;
1075         case AC97_SURROUND_MASTER:
1076                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1077                         return 0;
1078                 break;
1079         }
1080
1081         val = snd_ac97_read(ac97, reg);
1082         if (!(val & mask)) {
1083                 /* nothing seems to be here - mute flag is not set */
1084                 /* try another test */
1085                 snd_ac97_write_cache(ac97, reg, val | mask);
1086                 val = snd_ac97_read(ac97, reg);
1087                 val = snd_ac97_read(ac97, reg);
1088                 if (!(val & mask))
1089                         return 0;       /* nothing here */
1090         }
1091         return 1;               /* success, useable */
1092 }
1093
1094 static void check_volume_resolution(struct snd_ac97 *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1095 {
1096         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1097         unsigned char max[3] = { 63, 31, 15 };
1098         int i;
1099
1100         /* first look up the static resolution table */
1101         if (ac97->res_table) {
1102                 const struct snd_ac97_res_table *tbl;
1103                 for (tbl = ac97->res_table; tbl->reg; tbl++) {
1104                         if (tbl->reg == reg) {
1105                                 *lo_max = tbl->bits & 0xff;
1106                                 *hi_max = (tbl->bits >> 8) & 0xff;
1107                                 return;
1108                         }
1109                 }
1110         }
1111
1112         *lo_max = *hi_max = 0;
1113         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1114                 unsigned short val;
1115                 snd_ac97_write(
1116                         ac97, reg,
1117                         AC97_MUTE_MASK_STEREO | cbit[i] | (cbit[i] << 8)
1118                 );
1119                 /* Do the read twice due to buffers on some ac97 codecs.
1120                  * e.g. The STAC9704 returns exactly what you wrote to the register
1121                  * if you read it immediately. This causes the detect routine to fail.
1122                  */
1123                 val = snd_ac97_read(ac97, reg);
1124                 val = snd_ac97_read(ac97, reg);
1125                 if (! *lo_max && (val & 0x7f) == cbit[i])
1126                         *lo_max = max[i];
1127                 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1128                         *hi_max = max[i];
1129                 if (*lo_max && *hi_max)
1130                         break;
1131         }
1132 }
1133
1134 static int snd_ac97_try_bit(struct snd_ac97 * ac97, int reg, int bit)
1135 {
1136         unsigned short mask, val, orig, res;
1137
1138         mask = 1 << bit;
1139         orig = snd_ac97_read(ac97, reg);
1140         val = orig ^ mask;
1141         snd_ac97_write(ac97, reg, val);
1142         res = snd_ac97_read(ac97, reg);
1143         snd_ac97_write_cache(ac97, reg, orig);
1144         return res == val;
1145 }
1146
1147 /* check the volume resolution of center/lfe */
1148 static void snd_ac97_change_volume_params2(struct snd_ac97 * ac97, int reg, int shift, unsigned char *max)
1149 {
1150         unsigned short val, val1;
1151
1152         *max = 63;
1153         val = AC97_MUTE_MASK_STEREO | (0x20 << shift);
1154         snd_ac97_write(ac97, reg, val);
1155         val1 = snd_ac97_read(ac97, reg);
1156         if (val != val1) {
1157                 *max = 31;
1158         }
1159         /* reset volume to zero */
1160         snd_ac97_write_cache(ac97, reg, AC97_MUTE_MASK_STEREO);
1161 }
1162
1163 static inline int printable(unsigned int x)
1164 {
1165         x &= 0xff;
1166         if (x < ' ' || x >= 0x71) {
1167                 if (x <= 0x89)
1168                         return x - 0x71 + 'A';
1169                 return '?';
1170         }
1171         return x;
1172 }
1173
1174 static struct snd_kcontrol *snd_ac97_cnew(const struct snd_kcontrol_new *_template,
1175                                           struct snd_ac97 * ac97)
1176 {
1177         struct snd_kcontrol_new template;
1178         memcpy(&template, _template, sizeof(template));
1179         template.index = ac97->num;
1180         return snd_ctl_new1(&template, ac97);
1181 }
1182
1183 /*
1184  * create mute switch(es) for normal stereo controls
1185  */
1186 static int snd_ac97_cmute_new_stereo(struct snd_card *card, char *name, int reg,
1187                                      int check_stereo, int check_amix,
1188                                      struct snd_ac97 *ac97)
1189 {
1190         struct snd_kcontrol *kctl;
1191         int err;
1192         unsigned short val, val1, mute_mask;
1193
1194         if (! snd_ac97_valid_reg(ac97, reg))
1195                 return 0;
1196
1197         mute_mask = AC97_MUTE_MASK_MONO;
1198         val = snd_ac97_read(ac97, reg);
1199         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1200                 /* check whether both mute bits work */
1201                 val1 = val | AC97_MUTE_MASK_STEREO;
1202                 snd_ac97_write(ac97, reg, val1);
1203                 if (val1 == snd_ac97_read(ac97, reg))
1204                         mute_mask = AC97_MUTE_MASK_STEREO;
1205         }
1206         if (mute_mask == AC97_MUTE_MASK_STEREO) {
1207                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1208                 if (check_amix)
1209                         tmp.private_value |= (1 << 30);
1210                 tmp.index = ac97->num;
1211                 kctl = snd_ctl_new1(&tmp, ac97);
1212         } else {
1213                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1214                 if (check_amix)
1215                         tmp.private_value |= (1 << 30);
1216                 tmp.index = ac97->num;
1217                 kctl = snd_ctl_new1(&tmp, ac97);
1218         }
1219         err = snd_ctl_add(card, kctl);
1220         if (err < 0)
1221                 return err;
1222         /* mute as default */
1223         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1224         return 0;
1225 }
1226
1227 /*
1228  * set dB information
1229  */
1230 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0);
1231 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0);
1232 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
1233 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
1234 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
1235
1236 static const unsigned int *find_db_scale(unsigned int maxval)
1237 {
1238         switch (maxval) {
1239         case 0x0f: return db_scale_4bit;
1240         case 0x1f: return db_scale_5bit;
1241         case 0x3f: return db_scale_6bit;
1242         }
1243         return NULL;
1244 }
1245
1246 static void set_tlv_db_scale(struct snd_kcontrol *kctl, const unsigned int *tlv)
1247 {
1248         kctl->tlv.p = tlv;
1249         if (tlv)
1250                 kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
1251 }
1252
1253 /*
1254  * create a volume for normal stereo/mono controls
1255  */
1256 static int snd_ac97_cvol_new(struct snd_card *card, char *name, int reg, unsigned int lo_max,
1257                              unsigned int hi_max, struct snd_ac97 *ac97)
1258 {
1259         int err;
1260         struct snd_kcontrol *kctl;
1261
1262         if (! snd_ac97_valid_reg(ac97, reg))
1263                 return 0;
1264         if (hi_max) {
1265                 /* invert */
1266                 struct snd_kcontrol_new tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1267                 tmp.index = ac97->num;
1268                 kctl = snd_ctl_new1(&tmp, ac97);
1269         } else {
1270                 /* invert */
1271                 struct snd_kcontrol_new tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1272                 tmp.index = ac97->num;
1273                 kctl = snd_ctl_new1(&tmp, ac97);
1274         }
1275         if (!kctl)
1276                 return -ENOMEM;
1277         if (reg >= AC97_PHONE && reg <= AC97_PCM)
1278                 set_tlv_db_scale(kctl, db_scale_5bit_12db_max);
1279         else
1280                 set_tlv_db_scale(kctl, find_db_scale(lo_max));
1281         err = snd_ctl_add(card, kctl);
1282         if (err < 0)
1283                 return err;
1284         snd_ac97_write_cache(
1285                 ac97, reg,
1286                 (snd_ac97_read(ac97, reg) & AC97_MUTE_MASK_STEREO)
1287                 | lo_max | (hi_max << 8)
1288         );
1289         return 0;
1290 }
1291
1292 /*
1293  * create a mute-switch and a volume for normal stereo/mono controls
1294  */
1295 static int snd_ac97_cmix_new_stereo(struct snd_card *card, const char *pfx,
1296                                     int reg, int check_stereo, int check_amix,
1297                                     struct snd_ac97 *ac97)
1298 {
1299         int err;
1300         char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
1301         unsigned char lo_max, hi_max;
1302
1303         if (! snd_ac97_valid_reg(ac97, reg))
1304                 return 0;
1305
1306         if (snd_ac97_try_bit(ac97, reg, 15)) {
1307                 sprintf(name, "%s Switch", pfx);
1308                 if ((err = snd_ac97_cmute_new_stereo(card, name, reg,
1309                                                      check_stereo, check_amix,
1310                                                      ac97)) < 0)
1311                         return err;
1312         }
1313         check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1314         if (lo_max) {
1315                 sprintf(name, "%s Volume", pfx);
1316                 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1317                         return err;
1318         }
1319         return 0;
1320 }
1321
1322 #define snd_ac97_cmix_new(card, pfx, reg, acheck, ac97) \
1323         snd_ac97_cmix_new_stereo(card, pfx, reg, 0, acheck, ac97)
1324 #define snd_ac97_cmute_new(card, name, reg, acheck, ac97) \
1325         snd_ac97_cmute_new_stereo(card, name, reg, 0, acheck, ac97)
1326
1327 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97);
1328
1329 static int snd_ac97_mixer_build(struct snd_ac97 * ac97)
1330 {
1331         struct snd_card *card = ac97->bus->card;
1332         struct snd_kcontrol *kctl;
1333         int err;
1334         unsigned int idx;
1335         unsigned char max;
1336
1337         /* build master controls */
1338         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1339         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1340                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1341                         err = snd_ac97_cmute_new(card, "Master Playback Switch",
1342                                                  AC97_MASTER, 0, ac97);
1343                 else
1344                         err = snd_ac97_cmix_new(card, "Master Playback",
1345                                                 AC97_MASTER, 0, ac97);
1346                 if (err < 0)
1347                         return err;
1348         }
1349
1350         ac97->regs[AC97_CENTER_LFE_MASTER] = AC97_MUTE_MASK_STEREO;
1351
1352         /* build center controls */
1353         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER))
1354                 && !(ac97->flags & AC97_AD_MULTI)) {
1355                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1356                         return err;
1357                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1358                         return err;
1359                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &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);
1364         }
1365
1366         /* build LFE controls */
1367         if ((snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1))
1368                 && !(ac97->flags & AC97_AD_MULTI)) {
1369                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1370                         return err;
1371                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1372                         return err;
1373                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1374                 kctl->private_value &= ~(0xff << 16);
1375                 kctl->private_value |= (int)max << 16;
1376                 set_tlv_db_scale(kctl, find_db_scale(max));
1377                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1378         }
1379
1380         /* build surround controls */
1381         if ((snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER))
1382                 && !(ac97->flags & AC97_AD_MULTI)) {
1383                 /* Surround Master (0x38) is with stereo mutes */
1384                 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback",
1385                                                     AC97_SURROUND_MASTER, 1, 0,
1386                                                     ac97)) < 0)
1387                         return err;
1388         }
1389
1390         /* build headphone controls */
1391         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1392                 if ((err = snd_ac97_cmix_new(card, "Headphone Playback",
1393                                              AC97_HEADPHONE, 0, ac97)) < 0)
1394                         return err;
1395         }
1396
1397         /* build master mono controls */
1398         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1399                 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback",
1400                                              AC97_MASTER_MONO, 0, ac97)) < 0)
1401                         return err;
1402         }
1403
1404         /* build master tone controls */
1405         if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1406                 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1407                         for (idx = 0; idx < 2; idx++) {
1408                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1409                                         return err;
1410                                 if (ac97->id == AC97_ID_YMF743 ||
1411                                     ac97->id == AC97_ID_YMF753) {
1412                                         kctl->private_value &= ~(0xff << 16);
1413                                         kctl->private_value |= 7 << 16;
1414                                 }
1415                         }
1416                         snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1417                 }
1418         }
1419
1420         /* build Beep controls */
1421         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1422                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1423             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1424                 for (idx = 0; idx < 2; idx++)
1425                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1426                                 return err;
1427                 set_tlv_db_scale(kctl, db_scale_4bit);
1428                 snd_ac97_write_cache(
1429                         ac97,
1430                         AC97_PC_BEEP,
1431                         (snd_ac97_read(ac97, AC97_PC_BEEP)
1432                                 | AC97_MUTE_MASK_MONO | 0x001e)
1433                 );
1434         }
1435
1436         /* build Phone controls */
1437         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1438                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1439                         if ((err = snd_ac97_cmix_new(card, "Phone Playback",
1440                                                      AC97_PHONE, 1, ac97)) < 0)
1441                                 return err;
1442                 }
1443         }
1444
1445         /* build MIC controls */
1446         if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1447                 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1448                         if ((err = snd_ac97_cmix_new(card, "Mic Playback",
1449                                                      AC97_MIC, 1, ac97)) < 0)
1450                                 return err;
1451                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1452                                 return err;
1453                 }
1454         }
1455
1456         /* build Line controls */
1457         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1458                 if ((err = snd_ac97_cmix_new(card, "Line Playback",
1459                                              AC97_LINE, 1, ac97)) < 0)
1460                         return err;
1461         }
1462
1463         /* build CD controls */
1464         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1465                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1466                         if ((err = snd_ac97_cmix_new(card, "CD Playback",
1467                                                      AC97_CD, 1, ac97)) < 0)
1468                                 return err;
1469                 }
1470         }
1471
1472         /* build Video controls */
1473         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1474                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1475                         if ((err = snd_ac97_cmix_new(card, "Video Playback",
1476                                                      AC97_VIDEO, 1, ac97)) < 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                         if ((err = snd_ac97_cmix_new(card, "Aux Playback",
1485                                                      AC97_AUX, 1, ac97)) < 0)
1486                                 return err;
1487                 }
1488         }
1489
1490         /* build PCM controls */
1491         if (ac97->flags & AC97_AD_MULTI) {
1492                 unsigned short init_val;
1493                 if (ac97->flags & AC97_STEREO_MUTES)
1494                         init_val = 0x9f9f;
1495                 else
1496                         init_val = 0x9f1f;
1497                 for (idx = 0; idx < 2; idx++)
1498                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1499                                 return err;
1500                 set_tlv_db_scale(kctl, db_scale_5bit);
1501                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1502                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1503                         for (idx = 0; idx < 2; idx++)
1504                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1505                                         return err;
1506                         set_tlv_db_scale(kctl, db_scale_5bit);
1507                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1508                 }
1509                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1510                         for (idx = 0; idx < 2; idx++)
1511                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1512                                         return err;
1513                         set_tlv_db_scale(kctl, db_scale_5bit);
1514                         for (idx = 0; idx < 2; idx++)
1515                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1516                                         return err;
1517                         set_tlv_db_scale(kctl, db_scale_5bit);
1518                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1519                 }
1520                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1521         } else {
1522                 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1523                         if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1524                                 err = snd_ac97_cmute_new(card,
1525                                                          "PCM Playback Switch",
1526                                                          AC97_PCM, 0, ac97);
1527                         else
1528                                 err = snd_ac97_cmix_new(card, "PCM Playback",
1529                                                         AC97_PCM, 0, ac97);
1530                         if (err < 0)
1531                                 return err;
1532                 }
1533         }
1534
1535         /* build Capture controls */
1536         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1537                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1538                         return err;
1539                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1540                         err = snd_ac97_cmute_new(card, "Capture Switch",
1541                                                  AC97_REC_GAIN, 0, ac97);
1542                         if (err < 0)
1543                                 return err;
1544                 }
1545                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1546                         return err;
1547                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1548                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1549                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1550         }
1551         /* build MIC Capture controls */
1552         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1553                 for (idx = 0; idx < 2; idx++)
1554                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1555                                 return err;
1556                 set_tlv_db_scale(kctl, db_scale_rec_gain);
1557                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1558         }
1559
1560         /* build PCM out path & mute control */
1561         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1562                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1563                         return err;
1564         }
1565
1566         /* build Simulated Stereo Enhancement control */
1567         if (ac97->caps & AC97_BC_SIM_STEREO) {
1568                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1569                         return err;
1570         }
1571
1572         /* build 3D Stereo Enhancement control */
1573         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1574                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1575                         return err;
1576         }
1577
1578         /* build Loudness control */
1579         if (ac97->caps & AC97_BC_LOUDNESS) {
1580                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1581                         return err;
1582         }
1583
1584         /* build Mono output select control */
1585         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1586                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1587                         return err;
1588         }
1589
1590         /* build Mic select control */
1591         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1592                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1593                         return err;
1594         }
1595
1596         /* build ADC/DAC loopback control */
1597         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1598                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1599                         return err;
1600         }
1601
1602         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1603
1604         /* build 3D controls */
1605         if (ac97->build_ops->build_3d) {
1606                 ac97->build_ops->build_3d(ac97);
1607         } else {
1608                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1609                         unsigned short val;
1610                         val = 0x0707;
1611                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1612                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1613                         val = val == 0x0606;
1614                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1615                                 return err;
1616                         if (val)
1617                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1618                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1619                                 return err;
1620                         if (val)
1621                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1622                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1623                 }
1624         }
1625
1626         /* build S/PDIF controls */
1627
1628         /* Hack for ASUS P5P800-VM, which does not indicate S/PDIF capability */
1629         if (ac97->subsystem_vendor == 0x1043 &&
1630             ac97->subsystem_device == 0x810f)
1631                 ac97->ext_id |= AC97_EI_SPDIF;
1632
1633         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1634                 if (ac97->build_ops->build_spdif) {
1635                         if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1636                                 return err;
1637                 } else {
1638                         for (idx = 0; idx < 5; idx++)
1639                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1640                                         return err;
1641                         if (ac97->build_ops->build_post_spdif) {
1642                                 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1643                                         return err;
1644                         }
1645                         /* set default PCM S/PDIF params */
1646                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1647                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1648                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1649                 }
1650                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1651         }
1652
1653         /* build chip specific controls */
1654         if (ac97->build_ops->build_specific)
1655                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1656                         return err;
1657
1658         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1659                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1660                 if (! kctl)
1661                         return -ENOMEM;
1662                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1663                         set_inv_eapd(ac97, kctl);
1664                 if ((err = snd_ctl_add(card, kctl)) < 0)
1665                         return err;
1666         }
1667
1668         return 0;
1669 }
1670
1671 static int snd_ac97_modem_build(struct snd_card *card, struct snd_ac97 * ac97)
1672 {
1673         int err, idx;
1674
1675         /*
1676         ac97_dbg(ac97, "AC97_GPIO_CFG = %x\n",
1677                snd_ac97_read(ac97,AC97_GPIO_CFG));
1678         */
1679         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1680         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1681         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1682         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1683         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1684
1685         /* build modem switches */
1686         for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1687                 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1688                         return err;
1689
1690         /* build chip specific controls */
1691         if (ac97->build_ops->build_specific)
1692                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1693                         return err;
1694
1695         return 0;
1696 }
1697
1698 static int snd_ac97_test_rate(struct snd_ac97 *ac97, int reg, int shadow_reg, int rate)
1699 {
1700         unsigned short val;
1701         unsigned int tmp;
1702
1703         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1704         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1705         if (shadow_reg)
1706                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1707         val = snd_ac97_read(ac97, reg);
1708         return val == (tmp & 0xffff);
1709 }
1710
1711 static void snd_ac97_determine_rates(struct snd_ac97 *ac97, int reg, int shadow_reg, unsigned int *r_result)
1712 {
1713         unsigned int result = 0;
1714         unsigned short saved;
1715
1716         if (ac97->bus->no_vra) {
1717                 *r_result = SNDRV_PCM_RATE_48000;
1718                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1719                     reg == AC97_PCM_FRONT_DAC_RATE)
1720                         *r_result |= SNDRV_PCM_RATE_96000;
1721                 return;
1722         }
1723
1724         saved = snd_ac97_read(ac97, reg);
1725         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1726                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1727                                      AC97_EA_DRA, 0);
1728         /* test a non-standard rate */
1729         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1730                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1731         /* let's try to obtain standard rates */
1732         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1733                 result |= SNDRV_PCM_RATE_8000;
1734         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1735                 result |= SNDRV_PCM_RATE_11025;
1736         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1737                 result |= SNDRV_PCM_RATE_16000;
1738         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1739                 result |= SNDRV_PCM_RATE_22050;
1740         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1741                 result |= SNDRV_PCM_RATE_32000;
1742         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1743                 result |= SNDRV_PCM_RATE_44100;
1744         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1745                 result |= SNDRV_PCM_RATE_48000;
1746         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1747             reg == AC97_PCM_FRONT_DAC_RATE) {
1748                 /* test standard double rates */
1749                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1750                                      AC97_EA_DRA, AC97_EA_DRA);
1751                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1752                         result |= SNDRV_PCM_RATE_64000;
1753                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1754                         result |= SNDRV_PCM_RATE_88200;
1755                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1756                         result |= SNDRV_PCM_RATE_96000;
1757                 /* some codecs don't support variable double rates */
1758                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1759                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1760                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1761                                      AC97_EA_DRA, 0);
1762         }
1763         /* restore the default value */
1764         snd_ac97_write_cache(ac97, reg, saved);
1765         if (shadow_reg)
1766                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1767         *r_result = result;
1768 }
1769
1770 /* check AC97_SPDIF register to accept which sample rates */
1771 static unsigned int snd_ac97_determine_spdif_rates(struct snd_ac97 *ac97)
1772 {
1773         unsigned int result = 0;
1774         int i;
1775         static unsigned short ctl_bits[] = {
1776                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1777         };
1778         static unsigned int rate_bits[] = {
1779                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1780         };
1781
1782         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1783                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1784                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1785                         result |= rate_bits[i];
1786         }
1787         return result;
1788 }
1789
1790 /* look for the codec id table matching with the given id */
1791 static const struct ac97_codec_id *look_for_codec_id(const struct ac97_codec_id *table,
1792                                                      unsigned int id)
1793 {
1794         const struct ac97_codec_id *pid;
1795
1796         for (pid = table; pid->id; pid++)
1797                 if (pid->id == (id & pid->mask))
1798                         return pid;
1799         return NULL;
1800 }
1801
1802 void snd_ac97_get_name(struct snd_ac97 *ac97, unsigned int id, char *name, int modem)
1803 {
1804         const struct ac97_codec_id *pid;
1805
1806         sprintf(name, "0x%x %c%c%c", id,
1807                 printable(id >> 24),
1808                 printable(id >> 16),
1809                 printable(id >> 8));
1810         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1811         if (! pid)
1812                 return;
1813
1814         strcpy(name, pid->name);
1815         if (ac97 && pid->patch) {
1816                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1817                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1818                         pid->patch(ac97);
1819         }
1820
1821         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1822         if (pid) {
1823                 strcat(name, " ");
1824                 strcat(name, pid->name);
1825                 if (pid->mask != 0xffffffff)
1826                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1827                 if (ac97 && pid->patch) {
1828                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1829                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1830                                 pid->patch(ac97);
1831                 }
1832         } else
1833                 sprintf(name + strlen(name), " id %x", id & 0xff);
1834 }
1835
1836 /**
1837  * snd_ac97_get_short_name - retrieve codec name
1838  * @ac97: the codec instance
1839  *
1840  * Return: The short identifying name of the codec.
1841  */
1842 const char *snd_ac97_get_short_name(struct snd_ac97 *ac97)
1843 {
1844         const struct ac97_codec_id *pid;
1845
1846         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1847                 if (pid->id == (ac97->id & pid->mask))
1848                         return pid->name;
1849         return "unknown codec";
1850 }
1851
1852 EXPORT_SYMBOL(snd_ac97_get_short_name);
1853
1854 /* wait for a while until registers are accessible after RESET
1855  * return 0 if ok, negative not ready
1856  */
1857 static int ac97_reset_wait(struct snd_ac97 *ac97, int timeout, int with_modem)
1858 {
1859         unsigned long end_time;
1860         unsigned short val;
1861
1862         end_time = jiffies + timeout;
1863         do {
1864
1865                 /* use preliminary reads to settle the communication */
1866                 snd_ac97_read(ac97, AC97_RESET);
1867                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1868                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1869                 /* modem? */
1870                 if (with_modem) {
1871                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1872                         if (val != 0xffff && (val & 1) != 0)
1873                                 return 0;
1874                 }
1875                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1876                         /* probably only Xbox issue - all registers are read as zero */
1877                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1878                         if (val != 0 && val != 0xffff)
1879                                 return 0;
1880                 } else {
1881                         /* because the PCM or MASTER volume registers can be modified,
1882                          * the REC_GAIN register is used for tests
1883                          */
1884                         /* test if we can write to the record gain volume register */
1885                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1886                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1887                                 return 0;
1888                 }
1889                 schedule_timeout_uninterruptible(1);
1890         } while (time_after_eq(end_time, jiffies));
1891         return -ENODEV;
1892 }
1893
1894 /**
1895  * snd_ac97_bus - create an AC97 bus component
1896  * @card: the card instance
1897  * @num: the bus number
1898  * @ops: the bus callbacks table
1899  * @private_data: private data pointer for the new instance
1900  * @rbus: the pointer to store the new AC97 bus instance.
1901  *
1902  * Creates an AC97 bus component.  An struct snd_ac97_bus instance is newly
1903  * allocated and initialized.
1904  *
1905  * The ops table must include valid callbacks (at least read and
1906  * write).  The other callbacks, wait and reset, are not mandatory.
1907  *
1908  * The clock is set to 48000.  If another clock is needed, set
1909  * (*rbus)->clock manually.
1910  *
1911  * The AC97 bus instance is registered as a low-level device, so you don't
1912  * have to release it manually.
1913  *
1914  * Return: Zero if successful, or a negative error code on failure.
1915  */
1916 int snd_ac97_bus(struct snd_card *card, int num, struct snd_ac97_bus_ops *ops,
1917                  void *private_data, struct snd_ac97_bus **rbus)
1918 {
1919         int err;
1920         struct snd_ac97_bus *bus;
1921         static struct snd_device_ops dev_ops = {
1922                 .dev_free =     snd_ac97_bus_dev_free,
1923         };
1924
1925         if (snd_BUG_ON(!card))
1926                 return -EINVAL;
1927         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1928         if (bus == NULL)
1929                 return -ENOMEM;
1930         bus->card = card;
1931         bus->num = num;
1932         bus->ops = ops;
1933         bus->private_data = private_data;
1934         bus->clock = 48000;
1935         spin_lock_init(&bus->bus_lock);
1936         snd_ac97_bus_proc_init(bus);
1937         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1938                 snd_ac97_bus_free(bus);
1939                 return err;
1940         }
1941         if (rbus)
1942                 *rbus = bus;
1943         return 0;
1944 }
1945
1946 EXPORT_SYMBOL(snd_ac97_bus);
1947
1948 /* stop no dev release warning */
1949 static void ac97_device_release(struct device * dev)
1950 {
1951 }
1952
1953 /* register ac97 codec to bus */
1954 static int snd_ac97_dev_register(struct snd_device *device)
1955 {
1956         struct snd_ac97 *ac97 = device->device_data;
1957         int err;
1958
1959         ac97->dev.bus = &ac97_bus_type;
1960         ac97->dev.parent = ac97->bus->card->dev;
1961         ac97->dev.release = ac97_device_release;
1962         dev_set_name(&ac97->dev, "%d-%d:%s",
1963                      ac97->bus->card->number, ac97->num,
1964                      snd_ac97_get_short_name(ac97));
1965         if ((err = device_register(&ac97->dev)) < 0) {
1966                 ac97_err(ac97, "Can't register ac97 bus\n");
1967                 ac97->dev.bus = NULL;
1968                 return err;
1969         }
1970         return 0;
1971 }
1972
1973 /* disconnect ac97 codec */
1974 static int snd_ac97_dev_disconnect(struct snd_device *device)
1975 {
1976         struct snd_ac97 *ac97 = device->device_data;
1977         if (ac97->dev.bus)
1978                 device_unregister(&ac97->dev);
1979         return 0;
1980 }
1981
1982 /* build_ops to do nothing */
1983 static const struct snd_ac97_build_ops null_build_ops;
1984
1985 #ifdef CONFIG_SND_AC97_POWER_SAVE
1986 static void do_update_power(struct work_struct *work)
1987 {
1988         update_power_regs(
1989                 container_of(work, struct snd_ac97, power_work.work));
1990 }
1991 #endif
1992
1993 /**
1994  * snd_ac97_mixer - create an Codec97 component
1995  * @bus: the AC97 bus which codec is attached to
1996  * @template: the template of ac97, including index, callbacks and
1997  *         the private data.
1998  * @rac97: the pointer to store the new ac97 instance.
1999  *
2000  * Creates an Codec97 component.  An struct snd_ac97 instance is newly
2001  * allocated and initialized from the template.  The codec
2002  * is then initialized by the standard procedure.
2003  *
2004  * The template must include the codec number (num) and address (addr),
2005  * and the private data (private_data).
2006  *
2007  * The ac97 instance is registered as a low-level device, so you don't
2008  * have to release it manually.
2009  *
2010  * Return: Zero if successful, or a negative error code on failure.
2011  */
2012 int snd_ac97_mixer(struct snd_ac97_bus *bus, struct snd_ac97_template *template, struct snd_ac97 **rac97)
2013 {
2014         int err;
2015         struct snd_ac97 *ac97;
2016         struct snd_card *card;
2017         char name[64];
2018         unsigned long end_time;
2019         unsigned int reg;
2020         const struct ac97_codec_id *pid;
2021         static struct snd_device_ops ops = {
2022                 .dev_free =     snd_ac97_dev_free,
2023                 .dev_register = snd_ac97_dev_register,
2024                 .dev_disconnect =       snd_ac97_dev_disconnect,
2025         };
2026
2027         if (rac97)
2028                 *rac97 = NULL;
2029         if (snd_BUG_ON(!bus || !template))
2030                 return -EINVAL;
2031         if (snd_BUG_ON(template->num >= 4))
2032                 return -EINVAL;
2033         if (bus->codec[template->num])
2034                 return -EBUSY;
2035
2036         card = bus->card;
2037         ac97 = kzalloc(sizeof(*ac97), GFP_KERNEL);
2038         if (ac97 == NULL)
2039                 return -ENOMEM;
2040         ac97->private_data = template->private_data;
2041         ac97->private_free = template->private_free;
2042         ac97->bus = bus;
2043         ac97->pci = template->pci;
2044         ac97->num = template->num;
2045         ac97->addr = template->addr;
2046         ac97->scaps = template->scaps;
2047         ac97->res_table = template->res_table;
2048         bus->codec[ac97->num] = ac97;
2049         mutex_init(&ac97->reg_mutex);
2050         mutex_init(&ac97->page_mutex);
2051 #ifdef CONFIG_SND_AC97_POWER_SAVE
2052         INIT_DELAYED_WORK(&ac97->power_work, do_update_power);
2053 #endif
2054
2055 #ifdef CONFIG_PCI
2056         if (ac97->pci) {
2057                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
2058                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
2059         }
2060 #endif
2061         if (bus->ops->reset) {
2062                 bus->ops->reset(ac97);
2063                 goto __access_ok;
2064         }
2065
2066         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2067         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2068         if (ac97->id && ac97->id != (unsigned int)-1) {
2069                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2070                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
2071                         goto __access_ok;
2072         }
2073
2074         /* reset to defaults */
2075         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2076                 snd_ac97_write(ac97, AC97_RESET, 0);
2077         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2078                 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2079         if (bus->ops->wait)
2080                 bus->ops->wait(ac97);
2081         else {
2082                 udelay(50);
2083                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
2084                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 1);
2085                 else {
2086                         err = ac97_reset_wait(ac97, msecs_to_jiffies(500), 0);
2087                         if (err < 0)
2088                                 err = ac97_reset_wait(ac97,
2089                                                       msecs_to_jiffies(500), 1);
2090                 }
2091                 if (err < 0) {
2092                         ac97_warn(ac97, "AC'97 %d does not respond - RESET\n",
2093                                  ac97->num);
2094                         /* proceed anyway - it's often non-critical */
2095                 }
2096         }
2097       __access_ok:
2098         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
2099         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
2100         if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
2101             (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
2102                 ac97_err(ac97,
2103                          "AC'97 %d access is not valid [0x%x], removing mixer.\n",
2104                          ac97->num, ac97->id);
2105                 snd_ac97_free(ac97);
2106                 return -EIO;
2107         }
2108         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
2109         if (pid)
2110                 ac97->flags |= pid->flags;
2111
2112         /* test for AC'97 */
2113         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
2114                 /* test if we can write to the record gain volume register */
2115                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
2116                 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
2117                         ac97->scaps |= AC97_SCAP_AUDIO;
2118         }
2119         if (ac97->scaps & AC97_SCAP_AUDIO) {
2120                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
2121                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
2122                 if (ac97->ext_id == 0xffff)     /* invalid combination */
2123                         ac97->ext_id = 0;
2124         }
2125
2126         /* test for MC'97 */
2127         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
2128                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2129                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
2130                         ac97->ext_mid = 0;
2131                 if (ac97->ext_mid & 1)
2132                         ac97->scaps |= AC97_SCAP_MODEM;
2133         }
2134
2135         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
2136                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2137                         ac97_err(ac97,
2138                                  "AC'97 %d access error (not audio or modem codec)\n",
2139                                  ac97->num);
2140                 snd_ac97_free(ac97);
2141                 return -EACCES;
2142         }
2143
2144         if (bus->ops->reset) // FIXME: always skipping?
2145                 goto __ready_ok;
2146
2147         /* FIXME: add powerdown control */
2148         if (ac97_is_audio(ac97)) {
2149                 /* nothing should be in powerdown mode */
2150                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2151                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2152                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2153                         udelay(100);
2154                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2155                 }
2156                 /* nothing should be in powerdown mode */
2157                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2158                 end_time = jiffies + msecs_to_jiffies(5000);
2159                 do {
2160                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2161                                 goto __ready_ok;
2162                         schedule_timeout_uninterruptible(1);
2163                 } while (time_after_eq(end_time, jiffies));
2164                 ac97_warn(ac97,
2165                           "AC'97 %d analog subsections not ready\n", ac97->num);
2166         }
2167
2168         /* FIXME: add powerdown control */
2169         if (ac97_is_modem(ac97)) {
2170                 unsigned char tmp;
2171
2172                 /* nothing should be in powerdown mode */
2173                 /* note: it's important to set the rate at first */
2174                 tmp = AC97_MEA_GPIO;
2175                 if (ac97->ext_mid & AC97_MEI_LINE1) {
2176                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2177                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2178                 }
2179                 if (ac97->ext_mid & AC97_MEI_LINE2) {
2180                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2181                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2182                 }
2183                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
2184                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2185                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2186                 }
2187                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2188                 udelay(100);
2189                 /* nothing should be in powerdown mode */
2190                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2191                 end_time = jiffies + msecs_to_jiffies(100);
2192                 do {
2193                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2194                                 goto __ready_ok;
2195                         schedule_timeout_uninterruptible(1);
2196                 } while (time_after_eq(end_time, jiffies));
2197                 ac97_warn(ac97,
2198                           "MC'97 %d converters and GPIO not ready (0x%x)\n",
2199                           ac97->num,
2200                           snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2201         }
2202
2203       __ready_ok:
2204         if (ac97_is_audio(ac97))
2205                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2206         else
2207                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2208         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
2209                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2210                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2211                 if (! bus->no_vra)
2212                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2213                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2214         }
2215         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2216                 /* Intel controllers require double rate data to be put in
2217                  * slots 7+8, so let's hope the codec supports it. */
2218                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2219                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2220                         ac97->flags |= AC97_DOUBLE_RATE;
2221                 /* restore to slots 10/11 to avoid the confliction with surrounds */
2222                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, 0);
2223         }
2224         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2225                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2226                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2227         } else {
2228                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2229                 if (ac97->flags & AC97_DOUBLE_RATE)
2230                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2231                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2232         }
2233         if (ac97->ext_id & AC97_EI_SPDIF) {
2234                 /* codec specific code (patch) should override these values */
2235                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2236         }
2237         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2238                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2239         } else {
2240                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2241         }
2242         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2243                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2244                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2245         }
2246         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2247                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2248                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2249         }
2250         /* additional initializations */
2251         if (bus->ops->init)
2252                 bus->ops->init(ac97);
2253         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2254         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2255         if (! ac97->build_ops)
2256                 ac97->build_ops = &null_build_ops;
2257
2258         if (ac97_is_audio(ac97)) {
2259                 char comp[16];
2260                 if (card->mixername[0] == '\0') {
2261                         strcpy(card->mixername, name);
2262                 } else {
2263                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2264                                 strcat(card->mixername, ",");
2265                                 strcat(card->mixername, name);
2266                         }
2267                 }
2268                 sprintf(comp, "AC97a:%08x", ac97->id);
2269                 if ((err = snd_component_add(card, comp)) < 0) {
2270                         snd_ac97_free(ac97);
2271                         return err;
2272                 }
2273                 if (snd_ac97_mixer_build(ac97) < 0) {
2274                         snd_ac97_free(ac97);
2275                         return -ENOMEM;
2276                 }
2277         }
2278         if (ac97_is_modem(ac97)) {
2279                 char comp[16];
2280                 if (card->mixername[0] == '\0') {
2281                         strcpy(card->mixername, name);
2282                 } else {
2283                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2284                                 strcat(card->mixername, ",");
2285                                 strcat(card->mixername, name);
2286                         }
2287                 }
2288                 sprintf(comp, "AC97m:%08x", ac97->id);
2289                 if ((err = snd_component_add(card, comp)) < 0) {
2290                         snd_ac97_free(ac97);
2291                         return err;
2292                 }
2293                 if (snd_ac97_modem_build(card, ac97) < 0) {
2294                         snd_ac97_free(ac97);
2295                         return -ENOMEM;
2296                 }
2297         }
2298         if (ac97_is_audio(ac97))
2299                 update_power_regs(ac97);
2300         snd_ac97_proc_init(ac97);
2301         if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2302                 snd_ac97_free(ac97);
2303                 return err;
2304         }
2305         *rac97 = ac97;
2306         return 0;
2307 }
2308
2309 EXPORT_SYMBOL(snd_ac97_mixer);
2310
2311 /*
2312  * Power down the chip.
2313  *
2314  * MASTER and HEADPHONE registers are muted but the register cache values
2315  * are not changed, so that the values can be restored in snd_ac97_resume().
2316  */
2317 static void snd_ac97_powerdown(struct snd_ac97 *ac97)
2318 {
2319         unsigned short power;
2320
2321         if (ac97_is_audio(ac97)) {
2322                 /* some codecs have stereo mute bits */
2323                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2324                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2325         }
2326
2327         /* surround, CLFE, mic powerdown */
2328         power = ac97->regs[AC97_EXTENDED_STATUS];
2329         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2330                 power |= AC97_EA_PRJ;
2331         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2332                 power |= AC97_EA_PRI | AC97_EA_PRK;
2333         power |= AC97_EA_PRL;
2334         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, power);
2335
2336         /* powerdown external amplifier */
2337         if (ac97->scaps & AC97_SCAP_INV_EAPD)
2338                 power = ac97->regs[AC97_POWERDOWN] & ~AC97_PD_EAPD;
2339         else if (! (ac97->scaps & AC97_SCAP_EAPD_LED))
2340                 power = ac97->regs[AC97_POWERDOWN] | AC97_PD_EAPD;
2341         power |= AC97_PD_PR6;   /* Headphone amplifier powerdown */
2342         power |= AC97_PD_PR0 | AC97_PD_PR1;     /* ADC & DAC powerdown */
2343         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2344         udelay(100);
2345         power |= AC97_PD_PR2;   /* Analog Mixer powerdown (Vref on) */
2346         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2347         if (ac97_is_power_save_mode(ac97)) {
2348                 power |= AC97_PD_PR3;   /* Analog Mixer powerdown */
2349                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2350                 udelay(100);
2351                 /* AC-link powerdown, internal Clk disable */
2352                 /* FIXME: this may cause click noises on some boards */
2353                 power |= AC97_PD_PR4 | AC97_PD_PR5;
2354                 snd_ac97_write(ac97, AC97_POWERDOWN, power);
2355         }
2356 }
2357
2358
2359 struct ac97_power_reg {
2360         unsigned short reg;
2361         unsigned short power_reg;
2362         unsigned short mask;
2363 };
2364
2365 enum { PWIDX_ADC, PWIDX_FRONT, PWIDX_CLFE, PWIDX_SURR, PWIDX_MIC, PWIDX_SIZE };
2366
2367 static struct ac97_power_reg power_regs[PWIDX_SIZE] = {
2368         [PWIDX_ADC] = { AC97_PCM_LR_ADC_RATE, AC97_POWERDOWN, AC97_PD_PR0},
2369         [PWIDX_FRONT] = { AC97_PCM_FRONT_DAC_RATE, AC97_POWERDOWN, AC97_PD_PR1},
2370         [PWIDX_CLFE] = { AC97_PCM_LFE_DAC_RATE, AC97_EXTENDED_STATUS,
2371                          AC97_EA_PRI | AC97_EA_PRK},
2372         [PWIDX_SURR] = { AC97_PCM_SURR_DAC_RATE, AC97_EXTENDED_STATUS,
2373                          AC97_EA_PRJ},
2374         [PWIDX_MIC] = { AC97_PCM_MIC_ADC_RATE, AC97_EXTENDED_STATUS,
2375                         AC97_EA_PRL},
2376 };
2377
2378 #ifdef CONFIG_SND_AC97_POWER_SAVE
2379 /**
2380  * snd_ac97_update_power - update the powerdown register
2381  * @ac97: the codec instance
2382  * @reg: the rate register, e.g. AC97_PCM_FRONT_DAC_RATE
2383  * @powerup: non-zero when power up the part
2384  *
2385  * Update the AC97 powerdown register bits of the given part.
2386  *
2387  * Return: Zero.
2388  */
2389 int snd_ac97_update_power(struct snd_ac97 *ac97, int reg, int powerup)
2390 {
2391         int i;
2392
2393         if (! ac97)
2394                 return 0;
2395
2396         if (reg) {
2397                 /* SPDIF requires DAC power, too */
2398                 if (reg == AC97_SPDIF)
2399                         reg = AC97_PCM_FRONT_DAC_RATE;
2400                 for (i = 0; i < PWIDX_SIZE; i++) {
2401                         if (power_regs[i].reg == reg) {
2402                                 if (powerup)
2403                                         ac97->power_up |= (1 << i);
2404                                 else
2405                                         ac97->power_up &= ~(1 << i);
2406                                 break;
2407                         }
2408                 }
2409         }
2410
2411         if (ac97_is_power_save_mode(ac97) && !powerup)
2412                 /* adjust power-down bits after two seconds delay
2413                  * (for avoiding loud click noises for many (OSS) apps
2414                  *  that open/close frequently)
2415                  */
2416                 schedule_delayed_work(&ac97->power_work,
2417                                       msecs_to_jiffies(power_save * 1000));
2418         else {
2419                 cancel_delayed_work(&ac97->power_work);
2420                 update_power_regs(ac97);
2421         }
2422
2423         return 0;
2424 }
2425
2426 EXPORT_SYMBOL(snd_ac97_update_power);
2427 #endif /* CONFIG_SND_AC97_POWER_SAVE */
2428
2429 static void update_power_regs(struct snd_ac97 *ac97)
2430 {
2431         unsigned int power_up, bits;
2432         int i;
2433
2434         power_up = (1 << PWIDX_FRONT) | (1 << PWIDX_ADC);
2435         power_up |= (1 << PWIDX_MIC);
2436         if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2437                 power_up |= (1 << PWIDX_SURR);
2438         if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2439                 power_up |= (1 << PWIDX_CLFE);
2440 #ifdef CONFIG_SND_AC97_POWER_SAVE
2441         if (ac97_is_power_save_mode(ac97))
2442                 power_up = ac97->power_up;
2443 #endif
2444         if (power_up) {
2445                 if (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2) {
2446                         /* needs power-up analog mix and vref */
2447                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2448                                              AC97_PD_PR3, 0);
2449                         msleep(1);
2450                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2451                                              AC97_PD_PR2, 0);
2452                 }
2453         }
2454         for (i = 0; i < PWIDX_SIZE; i++) {
2455                 if (power_up & (1 << i))
2456                         bits = 0;
2457                 else
2458                         bits = power_regs[i].mask;
2459                 snd_ac97_update_bits(ac97, power_regs[i].power_reg,
2460                                      power_regs[i].mask, bits);
2461         }
2462         if (! power_up) {
2463                 if (! (ac97->regs[AC97_POWERDOWN] & AC97_PD_PR2)) {
2464                         /* power down analog mix and vref */
2465                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2466                                              AC97_PD_PR2, AC97_PD_PR2);
2467                         snd_ac97_update_bits(ac97, AC97_POWERDOWN,
2468                                              AC97_PD_PR3, AC97_PD_PR3);
2469                 }
2470         }
2471 }
2472
2473
2474 #ifdef CONFIG_PM
2475 /**
2476  * snd_ac97_suspend - General suspend function for AC97 codec
2477  * @ac97: the ac97 instance
2478  *
2479  * Suspends the codec, power down the chip.
2480  */
2481 void snd_ac97_suspend(struct snd_ac97 *ac97)
2482 {
2483         if (! ac97)
2484                 return;
2485         if (ac97->build_ops->suspend)
2486                 ac97->build_ops->suspend(ac97);
2487 #ifdef CONFIG_SND_AC97_POWER_SAVE
2488         cancel_delayed_work_sync(&ac97->power_work);
2489 #endif
2490         snd_ac97_powerdown(ac97);
2491 }
2492
2493 EXPORT_SYMBOL(snd_ac97_suspend);
2494
2495 /*
2496  * restore ac97 status
2497  */
2498 static void snd_ac97_restore_status(struct snd_ac97 *ac97)
2499 {
2500         int i;
2501
2502         for (i = 2; i < 0x7c ; i += 2) {
2503                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2504                         continue;
2505                 /* restore only accessible registers
2506                  * some chip (e.g. nm256) may hang up when unsupported registers
2507                  * are accessed..!
2508                  */
2509                 if (test_bit(i, ac97->reg_accessed)) {
2510                         snd_ac97_write(ac97, i, ac97->regs[i]);
2511                         snd_ac97_read(ac97, i);
2512                 }
2513         }
2514 }
2515
2516 /*
2517  * restore IEC958 status
2518  */
2519 static void snd_ac97_restore_iec958(struct snd_ac97 *ac97)
2520 {
2521         if (ac97->ext_id & AC97_EI_SPDIF) {
2522                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2523                         /* reset spdif status */
2524                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2525                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2526                         if (ac97->flags & AC97_CS_SPDIF)
2527                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2528                         else
2529                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2530                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2531                 }
2532         }
2533 }
2534
2535 /**
2536  * snd_ac97_resume - General resume function for AC97 codec
2537  * @ac97: the ac97 instance
2538  *
2539  * Do the standard resume procedure, power up and restoring the
2540  * old register values.
2541  */
2542 void snd_ac97_resume(struct snd_ac97 *ac97)
2543 {
2544         unsigned long end_time;
2545
2546         if (! ac97)
2547                 return;
2548
2549         if (ac97->bus->ops->reset) {
2550                 ac97->bus->ops->reset(ac97);
2551                 goto  __reset_ready;
2552         }
2553
2554         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2555         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2556                 if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
2557                         snd_ac97_write(ac97, AC97_RESET, 0);
2558                 else if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
2559                         snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
2560                 udelay(100);
2561                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2562         }
2563         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2564
2565         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2566         if (ac97_is_audio(ac97)) {
2567                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2568                 end_time = jiffies + msecs_to_jiffies(100);
2569                 do {
2570                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2571                                 break;
2572                         schedule_timeout_uninterruptible(1);
2573                 } while (time_after_eq(end_time, jiffies));
2574                 /* FIXME: extra delay */
2575                 ac97->bus->ops->write(ac97, AC97_MASTER, AC97_MUTE_MASK_MONO);
2576                 if (snd_ac97_read(ac97, AC97_MASTER) != AC97_MUTE_MASK_MONO)
2577                         msleep(250);
2578         } else {
2579                 end_time = jiffies + msecs_to_jiffies(100);
2580                 do {
2581                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2582                         if (val != 0xffff && (val & 1) != 0)
2583                                 break;
2584                         schedule_timeout_uninterruptible(1);
2585                 } while (time_after_eq(end_time, jiffies));
2586         }
2587 __reset_ready:
2588
2589         if (ac97->bus->ops->init)
2590                 ac97->bus->ops->init(ac97);
2591
2592         if (ac97->build_ops->resume)
2593                 ac97->build_ops->resume(ac97);
2594         else {
2595                 snd_ac97_restore_status(ac97);
2596                 snd_ac97_restore_iec958(ac97);
2597         }
2598 }
2599
2600 EXPORT_SYMBOL(snd_ac97_resume);
2601 #endif
2602
2603
2604 /*
2605  * Hardware tuning
2606  */
2607 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2608 {
2609         if (suffix)
2610                 sprintf(dst, "%s %s", src, suffix);
2611         else
2612                 strcpy(dst, src);
2613 }
2614
2615 /* remove the control with the given name and optional suffix */
2616 static int snd_ac97_remove_ctl(struct snd_ac97 *ac97, const char *name,
2617                                const char *suffix)
2618 {
2619         struct snd_ctl_elem_id id;
2620         memset(&id, 0, sizeof(id));
2621         set_ctl_name(id.name, name, suffix);
2622         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2623         return snd_ctl_remove_id(ac97->bus->card, &id);
2624 }
2625
2626 static struct snd_kcontrol *ctl_find(struct snd_ac97 *ac97, const char *name, const char *suffix)
2627 {
2628         struct snd_ctl_elem_id sid;
2629         memset(&sid, 0, sizeof(sid));
2630         set_ctl_name(sid.name, name, suffix);
2631         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2632         return snd_ctl_find_id(ac97->bus->card, &sid);
2633 }
2634
2635 /* rename the control with the given name and optional suffix */
2636 static int snd_ac97_rename_ctl(struct snd_ac97 *ac97, const char *src,
2637                                const char *dst, const char *suffix)
2638 {
2639         struct snd_kcontrol *kctl = ctl_find(ac97, src, suffix);
2640         if (kctl) {
2641                 set_ctl_name(kctl->id.name, dst, suffix);
2642                 return 0;
2643         }
2644         return -ENOENT;
2645 }
2646
2647 /* rename both Volume and Switch controls - don't check the return value */
2648 static void snd_ac97_rename_vol_ctl(struct snd_ac97 *ac97, const char *src,
2649                                     const char *dst)
2650 {
2651         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2652         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2653 }
2654
2655 /* swap controls */
2656 static int snd_ac97_swap_ctl(struct snd_ac97 *ac97, const char *s1,
2657                              const char *s2, const char *suffix)
2658 {
2659         struct snd_kcontrol *kctl1, *kctl2;
2660         kctl1 = ctl_find(ac97, s1, suffix);
2661         kctl2 = ctl_find(ac97, s2, suffix);
2662         if (kctl1 && kctl2) {
2663                 set_ctl_name(kctl1->id.name, s2, suffix);
2664                 set_ctl_name(kctl2->id.name, s1, suffix);
2665                 return 0;
2666         }
2667         return -ENOENT;
2668 }
2669
2670 #if 1
2671 /* bind hp and master controls instead of using only hp control */
2672 static int bind_hp_volsw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2673 {
2674         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2675         if (err > 0) {
2676                 unsigned long priv_saved = kcontrol->private_value;
2677                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2678                 snd_ac97_put_volsw(kcontrol, ucontrol);
2679                 kcontrol->private_value = priv_saved;
2680         }
2681         return err;
2682 }
2683
2684 /* ac97 tune: bind Master and Headphone controls */
2685 static int tune_hp_only(struct snd_ac97 *ac97)
2686 {
2687         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2688         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2689         if (! msw || ! mvol)
2690                 return -ENOENT;
2691         msw->put = bind_hp_volsw_put;
2692         mvol->put = bind_hp_volsw_put;
2693         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2694         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2695         return 0;
2696 }
2697
2698 #else
2699 /* ac97 tune: use Headphone control as master */
2700 static int tune_hp_only(struct snd_ac97 *ac97)
2701 {
2702         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2703                 return -ENOENT;
2704         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2705         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2706         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2707         return 0;
2708 }
2709 #endif
2710
2711 /* ac97 tune: swap Headphone and Master controls */
2712 static int tune_swap_hp(struct snd_ac97 *ac97)
2713 {
2714         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2715                 return -ENOENT;
2716         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2717         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2718         return 0;
2719 }
2720
2721 /* ac97 tune: swap Surround and Master controls */
2722 static int tune_swap_surround(struct snd_ac97 *ac97)
2723 {
2724         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2725             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2726                 return -ENOENT;
2727         return 0;
2728 }
2729
2730 /* ac97 tune: set up mic sharing for AD codecs */
2731 static int tune_ad_sharing(struct snd_ac97 *ac97)
2732 {
2733         unsigned short scfg;
2734         if ((ac97->id & 0xffffff00) != 0x41445300) {
2735                 ac97_err(ac97, "ac97_quirk AD_SHARING is only for AD codecs\n");
2736                 return -EINVAL;
2737         }
2738         /* Turn on OMS bit to route microphone to back panel */
2739         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2740         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2741         return 0;
2742 }
2743
2744 static const struct snd_kcontrol_new snd_ac97_alc_jack_detect =
2745 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2746
2747 /* ac97 tune: set up ALC jack-select */
2748 static int tune_alc_jack(struct snd_ac97 *ac97)
2749 {
2750         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2751                 ac97_err(ac97,
2752                          "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2753                 return -EINVAL;
2754         }
2755         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2756         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2757         if (ac97->id == AC97_ID_ALC658D)
2758                 snd_ac97_update_bits(ac97, 0x74, 0x0800, 0x0800);
2759         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2760 }
2761
2762 /* ac97 tune: inversed EAPD bit */
2763 static int tune_inv_eapd(struct snd_ac97 *ac97)
2764 {
2765         struct snd_kcontrol *kctl = ctl_find(ac97, "External Amplifier", NULL);
2766         if (! kctl)
2767                 return -ENOENT;
2768         set_inv_eapd(ac97, kctl);
2769         return 0;
2770 }
2771
2772 static int master_mute_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
2773 {
2774         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2775         if (err > 0) {
2776                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2777                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2778                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2779                 unsigned short mask;
2780                 if (shift != rshift)
2781                         mask = AC97_MUTE_MASK_STEREO;
2782                 else
2783                         mask = AC97_MUTE_MASK_MONO;
2784                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2785                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2786                                      AC97_PD_EAPD : 0);
2787         }
2788         return err;
2789 }
2790
2791 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2792 static int tune_mute_led(struct snd_ac97 *ac97)
2793 {
2794         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2795         if (! msw)
2796                 return -ENOENT;
2797         msw->put = master_mute_sw_put;
2798         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2799         snd_ac97_update_bits(
2800                 ac97, AC97_POWERDOWN,
2801                 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2802         );
2803         ac97->scaps |= AC97_SCAP_EAPD_LED;
2804         return 0;
2805 }
2806
2807 static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
2808                                  struct snd_ctl_elem_value *ucontrol)
2809 {
2810         int err = bind_hp_volsw_put(kcontrol, ucontrol);
2811         if (err > 0) {
2812                 struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
2813                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2814                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2815                 unsigned short mask;
2816                 if (shift != rshift)
2817                         mask = AC97_MUTE_MASK_STEREO;
2818                 else
2819                         mask = AC97_MUTE_MASK_MONO;
2820                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, AC97_PD_EAPD,
2821                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2822                                      AC97_PD_EAPD : 0);
2823         }
2824         return err;
2825 }
2826
2827 static int tune_hp_mute_led(struct snd_ac97 *ac97)
2828 {
2829         struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2830         struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2831         if (! msw || ! mvol)
2832                 return -ENOENT;
2833         msw->put = hp_master_mute_sw_put;
2834         mvol->put = bind_hp_volsw_put;
2835         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2836         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2837         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2838         snd_ac97_update_bits(
2839                 ac97, AC97_POWERDOWN,
2840                 AC97_PD_EAPD, AC97_PD_EAPD /* mute LED on */
2841         );
2842         return 0;
2843 }
2844
2845 struct quirk_table {
2846         const char *name;
2847         int (*func)(struct snd_ac97 *);
2848 };
2849
2850 static struct quirk_table applicable_quirks[] = {
2851         { "none", NULL },
2852         { "hp_only", tune_hp_only },
2853         { "swap_hp", tune_swap_hp },
2854         { "swap_surround", tune_swap_surround },
2855         { "ad_sharing", tune_ad_sharing },
2856         { "alc_jack", tune_alc_jack },
2857         { "inv_eapd", tune_inv_eapd },
2858         { "mute_led", tune_mute_led },
2859         { "hp_mute_led", tune_hp_mute_led },
2860 };
2861
2862 /* apply the quirk with the given type */
2863 static int apply_quirk(struct snd_ac97 *ac97, int type)
2864 {
2865         if (type <= 0)
2866                 return 0;
2867         else if (type >= ARRAY_SIZE(applicable_quirks))
2868                 return -EINVAL;
2869         if (applicable_quirks[type].func)
2870                 return applicable_quirks[type].func(ac97);
2871         return 0;
2872 }
2873
2874 /* apply the quirk with the given name */
2875 static int apply_quirk_str(struct snd_ac97 *ac97, const char *typestr)
2876 {
2877         int i;
2878         struct quirk_table *q;
2879
2880         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2881                 q = &applicable_quirks[i];
2882                 if (q->name && ! strcmp(typestr, q->name))
2883                         return apply_quirk(ac97, i);
2884         }
2885         /* for compatibility, accept the numbers, too */
2886         if (*typestr >= '0' && *typestr <= '9')
2887                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2888         return -EINVAL;
2889 }
2890
2891 /**
2892  * snd_ac97_tune_hardware - tune up the hardware
2893  * @ac97: the ac97 instance
2894  * @quirk: quirk list
2895  * @override: explicit quirk value (overrides the list if non-NULL)
2896  *
2897  * Do some workaround for each pci device, such as renaming of the
2898  * headphone (true line-out) control as "Master".
2899  * The quirk-list must be terminated with a zero-filled entry.
2900  *
2901  * Return: Zero if successful, or a negative error code on failure.
2902  */
2903
2904 int snd_ac97_tune_hardware(struct snd_ac97 *ac97, struct ac97_quirk *quirk, const char *override)
2905 {
2906         int result;
2907
2908         /* quirk overriden? */
2909         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2910                 result = apply_quirk_str(ac97, override);
2911                 if (result < 0)
2912                         ac97_err(ac97, "applying quirk type %s failed (%d)\n",
2913                                  override, result);
2914                 return result;
2915         }
2916
2917         if (! quirk)
2918                 return -EINVAL;
2919
2920         for (; quirk->subvendor; quirk++) {
2921                 if (quirk->subvendor != ac97->subsystem_vendor)
2922                         continue;
2923                 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2924                     quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2925                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2926                                 continue;
2927                         ac97_dbg(ac97, "ac97 quirk for %s (%04x:%04x)\n",
2928                                  quirk->name, ac97->subsystem_vendor,
2929                                  ac97->subsystem_device);
2930                         result = apply_quirk(ac97, quirk->type);
2931                         if (result < 0)
2932                                 ac97_err(ac97,
2933                                          "applying quirk type %d for %s failed (%d)\n",
2934                                          quirk->type, quirk->name, result);
2935                         return result;
2936                 }
2937         }
2938         return 0;
2939 }
2940
2941 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2942
2943 /*
2944  *  INIT part
2945  */
2946
2947 static int __init alsa_ac97_init(void)
2948 {
2949         return 0;
2950 }
2951
2952 static void __exit alsa_ac97_exit(void)
2953 {
2954 }
2955
2956 module_init(alsa_ac97_init)
2957 module_exit(alsa_ac97_exit)