sound/pci/ac97/ac97_codec.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@suse.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 <sound/driver.h>
  26 #include <linux/delay.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/pci.h>
  30 #include <linux/moduleparam.h>
  31 #include <sound/core.h>
  32 #include <sound/pcm.h>
  33 #include <sound/ac97_codec.h>
  34 #include <sound/asoundef.h>
  35 #include <sound/initval.h>
  36 #include "ac97_local.h"
  37 #include "ac97_id.h"
  38 #include "ac97_patch.h"
  39
  40 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  41 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
  42 MODULE_LICENSE("GPL");
  43
  44 static int enable_loopback;
  45
  46 module_param(enable_loopback, bool, 0444);
  47 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
  48
  49 /*
  50
  51  */
  52
  53 typedef struct {
  54         unsigned int id;
  55         unsigned int mask;
  56         const char *name;
  57         int (*patch)(ac97_t *ac97);
  58         int (*mpatch)(ac97_t *ac97);
  59         unsigned int flags;
  60 } ac97_codec_id_t;
  61
  62 static const ac97_codec_id_t snd_ac97_codec_id_vendors[] = {
  63 { 0x414b4d00, 0xffffff00, "Asahi Kasei",        NULL,   NULL },
  64 { 0x41445300, 0xffffff00, "Analog Devices",     NULL,   NULL },
  65 { 0x414c4300, 0xffffff00, "Realtek",            NULL,   NULL },
  66 { 0x414c4700, 0xffffff00, "Realtek",            NULL,   NULL },
  67 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL,  NULL },
  68 { 0x43525900, 0xffffff00, "Cirrus Logic",       NULL,   NULL },
  69 { 0x43585400, 0xffffff00, "Conexant",           NULL,   NULL },
  70 { 0x44543000, 0xffffff00, "Diamond Technology", NULL,   NULL },
  71 { 0x454d4300, 0xffffff00, "eMicro",             NULL,   NULL },
  72 { 0x45838300, 0xffffff00, "ESS Technology",     NULL,   NULL },
  73 { 0x48525300, 0xffffff00, "Intersil",           NULL,   NULL },
  74 { 0x49434500, 0xffffff00, "ICEnsemble",         NULL,   NULL },
  75 { 0x49544500, 0xffffff00, "ITE Tech.Inc",       NULL,   NULL },
  76 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
  77 { 0x50534300, 0xffffff00, "Philips",            NULL,   NULL },
  78 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL,   NULL },
  79 { 0x54524100, 0xffffff00, "TriTech",            NULL,   NULL },
  80 { 0x54584e00, 0xffffff00, "Texas Instruments",  NULL,   NULL },
  81 { 0x56494100, 0xffffff00, "VIA Technologies",   NULL,   NULL },
  82 { 0x57454300, 0xffffff00, "Winbond",            NULL,   NULL },
  83 { 0x574d4c00, 0xffffff00, "Wolfson",            NULL,   NULL },
  84 { 0x594d4800, 0xffffff00, "Yamaha",             NULL,   NULL },
  85 { 0x83847600, 0xffffff00, "SigmaTel",           NULL,   NULL },
  86 { 0,          0,          NULL,                 NULL,   NULL }
  87 };
  88
  89 static const ac97_codec_id_t snd_ac97_codec_ids[] = {
  90 { 0x414b4d00, 0xffffffff, "AK4540",             NULL,           NULL },
  91 { 0x414b4d01, 0xffffffff, "AK4542",             NULL,           NULL },
  92 { 0x414b4d02, 0xffffffff, "AK4543",             NULL,           NULL },
  93 { 0x414b4d06, 0xffffffff, "AK4544A",            NULL,           NULL },
  94 { 0x414b4d07, 0xffffffff, "AK4545",             NULL,           NULL },
  95 { 0x41445303, 0xffffffff, "AD1819",             patch_ad1819,   NULL },
  96 { 0x41445340, 0xffffffff, "AD1881",             patch_ad1881,   NULL },
  97 { 0x41445348, 0xffffffff, "AD1881A",            patch_ad1881,   NULL },
  98 { 0x41445360, 0xffffffff, "AD1885",             patch_ad1885,   NULL },
  99 { 0x41445361, 0xffffffff, "AD1886",             patch_ad1886,   NULL },
 100 { 0x41445362, 0xffffffff, "AD1887",             patch_ad1881,   NULL },
 101 { 0x41445363, 0xffffffff, "AD1886A",            patch_ad1881,   NULL },
 102 { 0x41445368, 0xffffffff, "AD1888",             patch_ad1888,   NULL },
 103 { 0x41445370, 0xffffffff, "AD1980",             patch_ad1980,   NULL },
 104 { 0x41445372, 0xffffffff, "AD1981A",            patch_ad1981a,  NULL },
 105 { 0x41445374, 0xffffffff, "AD1981B",            patch_ad1981b,  NULL },
 106 { 0x41445375, 0xffffffff, "AD1985",             patch_ad1985,   NULL },
 107 { 0x41445378, 0xffffffff, "AD1986",             patch_ad1985,   NULL },
 108 { 0x414c4300, 0xffffff00, "ALC100,100P",        NULL,           NULL },
 109 { 0x414c4710, 0xfffffff0, "ALC200,200P",        NULL,           NULL },
 110 { 0x414c4721, 0xffffffff, "ALC650D",            NULL,   NULL }, /* already patched */
 111 { 0x414c4722, 0xffffffff, "ALC650E",            NULL,   NULL }, /* already patched */
 112 { 0x414c4723, 0xffffffff, "ALC650F",            NULL,   NULL }, /* already patched */
 113 { 0x414c4720, 0xfffffff0, "ALC650",             patch_alc650,   NULL },
 114 { 0x414c4760, 0xfffffff0, "ALC655",             patch_alc655,   NULL },
 115 { 0x414c4780, 0xfffffff0, "ALC658",             patch_alc655,   NULL },
 116 { 0x414c4790, 0xfffffff0, "ALC850",             patch_alc850,   NULL },
 117 { 0x414c4730, 0xffffffff, "ALC101",             NULL,           NULL },
 118 { 0x414c4740, 0xfffffff0, "ALC202",             NULL,           NULL },
 119 { 0x414c4750, 0xfffffff0, "ALC250",             NULL,           NULL },
 120 { 0x414c4770, 0xfffffff0, "ALC203",             NULL,           NULL },
 121 { 0x434d4941, 0xffffffff, "CMI9738",            patch_cm9738,   NULL },
 122 { 0x434d4961, 0xffffffff, "CMI9739",            patch_cm9739,   NULL },
 123 { 0x434d4969, 0xffffffff, "CMI9780",            patch_cm9780,   NULL },
 124 { 0x434d4978, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 125 { 0x434d4982, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 126 { 0x434d4983, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 127 { 0x43525900, 0xfffffff8, "CS4297",             NULL,           NULL },
 128 { 0x43525910, 0xfffffff8, "CS4297A",            patch_cirrus_spdif,     NULL },
 129 { 0x43525920, 0xfffffff8, "CS4298",             patch_cirrus_spdif,             NULL },
 130 { 0x43525928, 0xfffffff8, "CS4294",             NULL,           NULL },
 131 { 0x43525930, 0xfffffff8, "CS4299",             patch_cirrus_cs4299,    NULL },
 132 { 0x43525948, 0xfffffff8, "CS4201",             NULL,           NULL },
 133 { 0x43525958, 0xfffffff8, "CS4205",             patch_cirrus_spdif,     NULL },
 134 { 0x43525960, 0xfffffff8, "CS4291",             NULL,           NULL },
 135 { 0x43525970, 0xfffffff8, "CS4202",             NULL,           NULL },
 136 { 0x43585421, 0xffffffff, "HSD11246",           NULL,           NULL }, // SmartMC II
 137 { 0x43585428, 0xfffffff8, "Cx20468",            patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
 138 { 0x44543031, 0xfffffff0, "DT0398",             NULL,           NULL },
 139 { 0x454d4328, 0xffffffff, "28028",              NULL,           NULL },  // same as TR28028?
 140 { 0x45838308, 0xffffffff, "ESS1988",            NULL,           NULL },
 141 { 0x48525300, 0xffffff00, "HMP9701",            NULL,           NULL },
 142 { 0x49434501, 0xffffffff, "ICE1230",            NULL,           NULL },
 143 { 0x49434511, 0xffffffff, "ICE1232",            NULL,           NULL }, // alias VIA VT1611A?
 144 { 0x49434514, 0xffffffff, "ICE1232A",           NULL,           NULL },
 145 { 0x49434551, 0xffffffff, "VT1616",             patch_vt1616,   NULL },
 146 { 0x49434552, 0xffffffff, "VT1616i",            patch_vt1616,   NULL }, // VT1616 compatible (chipset integrated)
 147 { 0x49544520, 0xffffffff, "IT2226E",            NULL,           NULL },
 148 { 0x49544561, 0xffffffff, "IT2646E",            patch_it2646,   NULL },
 149 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL,           NULL }, // only guess --jk
 150 { 0x4e534331, 0xffffffff, "LM4549",             NULL,           NULL },
 151 { 0x4e534350, 0xffffffff, "LM4550",             NULL,           NULL },
 152 { 0x50534304, 0xffffffff, "UCB1400",            NULL,           NULL },
 153 { 0x53494c20, 0xffffffe0, "Si3036,8",           mpatch_si3036,  mpatch_si3036, AC97_MODEM_PATCH },
 154 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
 155 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
 156 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
 157 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 158 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
 159 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
 160 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
 161 { 0x574d4c00, 0xffffffff, "WM9701A",            NULL,           NULL },
 162 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
 163 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
 164 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
 165 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
 166 { 0x574d4C12, 0xffffffff, "WM9711,WM9712",      patch_wolfson11, NULL},
 167 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
 168 { 0x594d4800, 0xffffffff, "YMF743",             NULL,           NULL },
 169 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
 170 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
 171 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
 172 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
 173 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
 174 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
 175 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
 176 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
 177 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
 178 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
 179 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
 180 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
 181 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
 182 { 0,          0,          NULL,                 NULL,           NULL }
 183 };
 184
 185 const char *snd_ac97_stereo_enhancements[] =
 186 {
 187   /*   0 */ "No 3D Stereo Enhancement",
 188   /*   1 */ "Analog Devices Phat Stereo",
 189   /*   2 */ "Creative Stereo Enhancement",
 190   /*   3 */ "National Semi 3D Stereo Enhancement",
 191   /*   4 */ "YAMAHA Ymersion",
 192   /*   5 */ "BBE 3D Stereo Enhancement",
 193   /*   6 */ "Crystal Semi 3D Stereo Enhancement",
 194   /*   7 */ "Qsound QXpander",
 195   /*   8 */ "Spatializer 3D Stereo Enhancement",
 196   /*   9 */ "SRS 3D Stereo Enhancement",
 197   /*  10 */ "Platform Tech 3D Stereo Enhancement",
 198   /*  11 */ "AKM 3D Audio",
 199   /*  12 */ "Aureal Stereo Enhancement",
 200   /*  13 */ "Aztech 3D Enhancement",
 201   /*  14 */ "Binaura 3D Audio Enhancement",
 202   /*  15 */ "ESS Technology Stereo Enhancement",
 203   /*  16 */ "Harman International VMAx",
 204   /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
 205   /*  18 */ "Philips Incredible Sound",
 206   /*  19 */ "Texas Instruments 3D Stereo Enhancement",
 207   /*  20 */ "VLSI Technology 3D Stereo Enhancement",
 208   /*  21 */ "TriTech 3D Stereo Enhancement",
 209   /*  22 */ "Realtek 3D Stereo Enhancement",
 210   /*  23 */ "Samsung 3D Stereo Enhancement",
 211   /*  24 */ "Wolfson Microelectronics 3D Enhancement",
 212   /*  25 */ "Delta Integration 3D Enhancement",
 213   /*  26 */ "SigmaTel 3D Enhancement",
 214   /*  27 */ "IC Ensemble/KS Waves",
 215   /*  28 */ "Rockwell 3D Stereo Enhancement",
 216   /*  29 */ "Reserved 29",
 217   /*  30 */ "Reserved 30",
 218   /*  31 */ "Reserved 31"
 219 };
 220
 221 /*
 222  * Shared AC97 controllers (ICH, ATIIXP...)
 223  */
 224 static DECLARE_MUTEX(shared_codec_mutex);
 225 static ac97_t *shared_codec[AC97_SHARED_TYPES][4];
 226
 227
 228 /*
 229  *  I/O routines
 230  */
 231
 232 static int snd_ac97_valid_reg(ac97_t *ac97, unsigned short reg)
 233 {
 234         if (ac97->limited_regs && ! test_bit(reg, ac97->reg_accessed))
 235                 return 0;
 236
 237         /* filter some registers for buggy codecs */
 238         switch (ac97->id) {
 239         case AC97_ID_AK4540:
 240         case AC97_ID_AK4542:
 241                 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
 242                         return 1;
 243                 return 0;
 244         case AC97_ID_AD1819:    /* AD1819 */
 245         case AC97_ID_AD1881:    /* AD1881 */
 246         case AC97_ID_AD1881A:   /* AD1881A */
 247                 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
 248                         return 0;
 249                 return 1;
 250         case AC97_ID_AD1885:    /* AD1885 */
 251         case AC97_ID_AD1886:    /* AD1886 */
 252         case AC97_ID_AD1886A:   /* AD1886A - !!verify!! --jk */
 253         case AC97_ID_AD1887:    /* AD1887 - !!verify!! --jk */
 254                 if (reg == 0x5a)
 255                         return 1;
 256                 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
 257                         return 0;
 258                 return 1;
 259         case AC97_ID_STAC9700:
 260         case AC97_ID_STAC9704:
 261         case AC97_ID_STAC9705:
 262         case AC97_ID_STAC9708:
 263         case AC97_ID_STAC9721:
 264         case AC97_ID_STAC9744:
 265         case AC97_ID_STAC9756:
 266                 if (reg <= 0x3a || reg >= 0x5a)
 267                         return 1;
 268                 return 0;
 269         }
 270         return 1;
 271 }
 272
 273 /**
 274  * snd_ac97_write - write a value on the given register
 275  * @ac97: the ac97 instance
 276  * @reg: the register to change
 277  * @value: the value to set
 278  *
 279  * Writes a value on the given register.  This will invoke the write
 280  * callback directly after the register check.
 281  * This function doesn't change the register cache unlike
 282  * #snd_ca97_write_cache(), so use this only when you don't want to
 283  * reflect the change to the suspend/resume state.
 284  */
 285 void snd_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short value)
 286 {
 287         if (!snd_ac97_valid_reg(ac97, reg))
 288                 return;
 289         if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
 290                 /* Fix H/W bug of ALC100/100P */
 291                 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
 292                         ac97->bus->ops->write(ac97, AC97_RESET, 0);     /* reset audio codec */
 293         }
 294         ac97->bus->ops->write(ac97, reg, value);
 295 }
 296
 297 /**
 298  * snd_ac97_read - read a value from the given register
 299  *
 300  * @ac97: the ac97 instance
 301  * @reg: the register to read
 302  *
 303  * Reads a value from the given register.  This will invoke the read
 304  * callback directly after the register check.
 305  *
 306  * Returns the read value.
 307  */
 308 unsigned short snd_ac97_read(ac97_t *ac97, unsigned short reg)
 309 {
 310         if (!snd_ac97_valid_reg(ac97, reg))
 311                 return 0;
 312         return ac97->bus->ops->read(ac97, reg);
 313 }
 314
 315 /* read a register - return the cached value if already read */
 316 static inline unsigned short snd_ac97_read_cache(ac97_t *ac97, unsigned short reg)
 317 {
 318         if (! test_bit(reg, ac97->reg_accessed)) {
 319                 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
 320                 // set_bit(reg, ac97->reg_accessed);
 321         }
 322         return ac97->regs[reg];
 323 }
 324
 325 /**
 326  * snd_ac97_write_cache - write a value on the given register and update the cache
 327  * @ac97: the ac97 instance
 328  * @reg: the register to change
 329  * @value: the value to set
 330  *
 331  * Writes a value on the given register and updates the register
 332  * cache.  The cached values are used for the cached-read and the
 333  * suspend/resume.
 334  */
 335 void snd_ac97_write_cache(ac97_t *ac97, unsigned short reg, unsigned short value)
 336 {
 337         if (!snd_ac97_valid_reg(ac97, reg))
 338                 return;
 339         down(&ac97->reg_mutex);
 340         ac97->regs[reg] = value;
 341         ac97->bus->ops->write(ac97, reg, value);
 342         set_bit(reg, ac97->reg_accessed);
 343         up(&ac97->reg_mutex);
 344 }
 345
 346 /**
 347  * snd_ac97_update - update the value on the given register
 348  * @ac97: the ac97 instance
 349  * @reg: the register to change
 350  * @value: the value to set
 351  *
 352  * Compares the value with the register cache and updates the value
 353  * only when the value is changed.
 354  *
 355  * Returns 1 if the value is changed, 0 if no change, or a negative
 356  * code on failure.
 357  */
 358 int snd_ac97_update(ac97_t *ac97, unsigned short reg, unsigned short value)
 359 {
 360         int change;
 361
 362         if (!snd_ac97_valid_reg(ac97, reg))
 363                 return -EINVAL;
 364         down(&ac97->reg_mutex);
 365         change = ac97->regs[reg] != value;
 366         if (change) {
 367                 ac97->regs[reg] = value;
 368                 ac97->bus->ops->write(ac97, reg, value);
 369         }
 370         up(&ac97->reg_mutex);
 371         return change;
 372 }
 373
 374 /**
 375  * snd_ac97_update_bits - update the bits on the given register
 376  * @ac97: the ac97 instance
 377  * @reg: the register to change
 378  * @mask: the bit-mask to change
 379  * @value: the value to set
 380  *
 381  * Updates the masked-bits on the given register only when the value
 382  * is changed.
 383  *
 384  * Returns 1 if the bits are changed, 0 if no change, or a negative
 385  * code on failure.
 386  */
 387 int snd_ac97_update_bits(ac97_t *ac97, unsigned short reg, unsigned short mask, unsigned short value)
 388 {
 389         int change;
 390
 391         if (!snd_ac97_valid_reg(ac97, reg))
 392                 return -EINVAL;
 393         down(&ac97->reg_mutex);
 394         change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 395         up(&ac97->reg_mutex);
 396         return change;
 397 }
 398
 399 /* no lock version - see snd_ac97_updat_bits() */
 400 int snd_ac97_update_bits_nolock(ac97_t *ac97, unsigned short reg,
 401                                 unsigned short mask, unsigned short value)
 402 {
 403         int change;
 404         unsigned short old, new;
 405
 406         old = snd_ac97_read_cache(ac97, reg);
 407         new = (old & ~mask) | value;
 408         change = old != new;
 409         if (change) {
 410                 ac97->regs[reg] = new;
 411                 ac97->bus->ops->write(ac97, reg, new);
 412         }
 413         return change;
 414 }
 415
 416 static int snd_ac97_ad18xx_update_pcm_bits(ac97_t *ac97, int codec, unsigned short mask, unsigned short value)
 417 {
 418         int change;
 419         unsigned short old, new, cfg;
 420
 421         down(&ac97->page_mutex);
 422         old = ac97->spec.ad18xx.pcmreg[codec];
 423         new = (old & ~mask) | value;
 424         change = old != new;
 425         if (change) {
 426                 down(&ac97->reg_mutex);
 427                 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
 428                 ac97->spec.ad18xx.pcmreg[codec] = new;
 429                 /* select single codec */
 430                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 431                                  (cfg & ~0x7000) |
 432                                  ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
 433                 /* update PCM bits */
 434                 ac97->bus->ops->write(ac97, AC97_PCM, new);
 435                 /* select all codecs */
 436                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 437                                  cfg | 0x7000);
 438                 up(&ac97->reg_mutex);
 439         }
 440         up(&ac97->page_mutex);
 441         return change;
 442 }
 443
 444 /*
 445  * Controls
 446  */
 447
 448 int snd_ac97_info_enum_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 449 {
 450         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 451
 452         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 453         uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
 454         uinfo->value.enumerated.items = e->mask;
 455
 456         if (uinfo->value.enumerated.item > e->mask - 1)
 457                 uinfo->value.enumerated.item = e->mask - 1;
 458         strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
 459         return 0;
 460 }
 461
 462 int snd_ac97_get_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 463 {
 464         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 465         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 466         unsigned short val, bitmask;
 467
 468         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 469                 ;
 470         val = snd_ac97_read_cache(ac97, e->reg);
 471         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
 472         if (e->shift_l != e->shift_r)
 473                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
 474
 475         return 0;
 476 }
 477
 478 int snd_ac97_put_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 479 {
 480         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 481         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 482         unsigned short val;
 483         unsigned short mask, bitmask;
 484
 485         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 486                 ;
 487         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
 488                 return -EINVAL;
 489         val = ucontrol->value.enumerated.item[0] << e->shift_l;
 490         mask = (bitmask - 1) << e->shift_l;
 491         if (e->shift_l != e->shift_r) {
 492                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
 493                         return -EINVAL;
 494                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
 495                 mask |= (bitmask - 1) << e->shift_r;
 496         }
 497         return snd_ac97_update_bits(ac97, e->reg, mask, val);
 498 }
 499
 500 /* save/restore ac97 v2.3 paging */
 501 static int snd_ac97_page_save(ac97_t *ac97, int reg, snd_kcontrol_t *kcontrol)
 502 {
 503         int page_save = -1;
 504         if ((kcontrol->private_value & (1<<25)) &&
 505             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
 506             (reg >= 0x60 && reg < 0x70)) {
 507                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
 508                 down(&ac97->page_mutex); /* lock paging */
 509                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
 510                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
 511         }
 512         return page_save;
 513 }
 514
 515 static void snd_ac97_page_restore(ac97_t *ac97, int page_save)
 516 {
 517         if (page_save >= 0) {
 518                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
 519                 up(&ac97->page_mutex); /* unlock paging */
 520         }
 521 }
 522
 523 /* volume and switch controls */
 524 int snd_ac97_info_volsw(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 525 {
 526         int mask = (kcontrol->private_value >> 16) & 0xff;
 527         int shift = (kcontrol->private_value >> 8) & 0x0f;
 528         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 529
 530         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 531         uinfo->count = shift == rshift ? 1 : 2;
 532         uinfo->value.integer.min = 0;
 533         uinfo->value.integer.max = mask;
 534         return 0;
 535 }
 536
 537 int snd_ac97_get_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 538 {
 539         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 540         int reg = kcontrol->private_value & 0xff;
 541         int shift = (kcontrol->private_value >> 8) & 0x0f;
 542         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 543         int mask = (kcontrol->private_value >> 16) & 0xff;
 544         int invert = (kcontrol->private_value >> 24) & 0x01;
 545         int page_save;
 546
 547         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 548         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
 549         if (shift != rshift)
 550                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
 551         if (invert) {
 552                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 553                 if (shift != rshift)
 554                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 555         }
 556         snd_ac97_page_restore(ac97, page_save);
 557         return 0;
 558 }
 559
 560 int snd_ac97_put_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 561 {
 562         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 563         int reg = kcontrol->private_value & 0xff;
 564         int shift = (kcontrol->private_value >> 8) & 0x0f;
 565         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 566         int mask = (kcontrol->private_value >> 16) & 0xff;
 567         int invert = (kcontrol->private_value >> 24) & 0x01;
 568         int err, page_save;
 569         unsigned short val, val2, val_mask;
 570
 571         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 572         val = (ucontrol->value.integer.value[0] & mask);
 573         if (invert)
 574                 val = mask - val;
 575         val_mask = mask << shift;
 576         val = val << shift;
 577         if (shift != rshift) {
 578                 val2 = (ucontrol->value.integer.value[1] & mask);
 579                 if (invert)
 580                         val2 = mask - val2;
 581                 val_mask |= mask << rshift;
 582                 val |= val2 << rshift;
 583         }
 584         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
 585         snd_ac97_page_restore(ac97, page_save);
 586         return err;
 587 }
 588
 589 static const snd_kcontrol_new_t snd_ac97_controls_master_mono[2] = {
 590 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
 591 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
 592 };
 593
 594 static const snd_kcontrol_new_t snd_ac97_controls_tone[2] = {
 595 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
 596 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
 597 };
 598
 599 static const snd_kcontrol_new_t snd_ac97_controls_pc_beep[2] = {
 600 AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 601 AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 602 };
 603
 604 static const snd_kcontrol_new_t snd_ac97_controls_mic_boost =
 605         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
 606
 607
 608 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
 609 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
 610 static const char* std_mix[] = {"Mix", "Mic"};
 611 static const char* std_mic[] = {"Mic1", "Mic2"};
 612
 613 static const struct ac97_enum std_enum[] = {
 614 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
 615 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
 616 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
 617 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
 618 };
 619
 620 static const snd_kcontrol_new_t snd_ac97_control_capture_src =
 621 AC97_ENUM("Capture Source", std_enum[0]);
 622
 623 static const snd_kcontrol_new_t snd_ac97_control_capture_vol =
 624 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
 625
 626 static const snd_kcontrol_new_t snd_ac97_controls_mic_capture[2] = {
 627 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
 628 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
 629 };
 630
 631 typedef enum {
 632         AC97_GENERAL_PCM_OUT = 0,
 633         AC97_GENERAL_STEREO_ENHANCEMENT,
 634         AC97_GENERAL_3D,
 635         AC97_GENERAL_LOUDNESS,
 636         AC97_GENERAL_MONO,
 637         AC97_GENERAL_MIC,
 638         AC97_GENERAL_LOOPBACK
 639 } ac97_general_index_t;
 640
 641 static const snd_kcontrol_new_t snd_ac97_controls_general[7] = {
 642 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
 643 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
 644 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 645 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
 646 AC97_ENUM("Mono Output Select", std_enum[2]),
 647 AC97_ENUM("Mic Select", std_enum[3]),
 648 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
 649 };
 650
 651 const snd_kcontrol_new_t snd_ac97_controls_3d[2] = {
 652 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
 653 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
 654 };
 655
 656 static const snd_kcontrol_new_t snd_ac97_controls_center[2] = {
 657 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
 658 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
 659 };
 660
 661 static const snd_kcontrol_new_t snd_ac97_controls_lfe[2] = {
 662 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
 663 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
 664 };
 665
 666 static const snd_kcontrol_new_t snd_ac97_control_eapd =
 667 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
 668
 669 static const snd_kcontrol_new_t snd_ac97_controls_modem_switches[2] = {
 670 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
 671 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
 672 };
 673
 674 /* change the existing EAPD control as inverted */
 675 static void set_inv_eapd(ac97_t *ac97, snd_kcontrol_t *kctl)
 676 {
 677         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
 678         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
 679         ac97->scaps |= AC97_SCAP_INV_EAPD;
 680 }
 681
 682 static int snd_ac97_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 683 {
 684         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 685         uinfo->count = 1;
 686         return 0;
 687 }
 688
 689 static int snd_ac97_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 690 {
 691         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 692                                            IEC958_AES0_NONAUDIO |
 693                                            IEC958_AES0_CON_EMPHASIS_5015 |
 694                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 695         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 696                                            IEC958_AES1_CON_ORIGINAL;
 697         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 698         return 0;
 699 }
 700
 701 static int snd_ac97_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 702 {
 703         /* FIXME: AC'97 spec doesn't say which bits are used for what */
 704         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 705                                            IEC958_AES0_NONAUDIO |
 706                                            IEC958_AES0_PRO_FS |
 707                                            IEC958_AES0_PRO_EMPHASIS_5015;
 708         return 0;
 709 }
 710
 711 static int snd_ac97_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 712 {
 713         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 714
 715         down(&ac97->reg_mutex);
 716         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
 717         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
 718         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
 719         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
 720         up(&ac97->reg_mutex);
 721         return 0;
 722 }
 723
 724 static int snd_ac97_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 725 {
 726         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 727         unsigned int new = 0;
 728         unsigned short val = 0;
 729         int change;
 730
 731         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
 732         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
 733                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
 734                 switch (new & IEC958_AES0_PRO_FS) {
 735                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
 736                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
 737                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
 738                 default:                       val |= 1<<12; break;
 739                 }
 740                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 741                         val |= 1<<3;
 742         } else {
 743                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
 744                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
 745                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
 746                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 747                         val |= 1<<3;
 748                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
 749                         val |= 1<<2;
 750                 val |= ((new >> 8) & 0xff) << 4;        // category + original
 751                 switch ((new >> 24) & 0xff) {
 752                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
 753                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
 754                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
 755                 default:                       val |= 1<<12; break;
 756                 }
 757         }
 758
 759         down(&ac97->reg_mutex);
 760         change = ac97->spdif_status != new;
 761         ac97->spdif_status = new;
 762
 763         if (ac97->flags & AC97_CS_SPDIF) {
 764                 int x = (val >> 12) & 0x03;
 765                 switch (x) {
 766                 case 0: x = 1; break;  // 44.1
 767                 case 2: x = 0; break;  // 48.0
 768                 default: x = 0; break; // illegal.
 769                 }
 770                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
 771         } else if (ac97->flags & AC97_CX_SPDIF) {
 772                 int v;
 773                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
 774                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
 775                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
 776                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
 777                                                       v);
 778         } else {
 779                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 780                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 781
 782                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
 783                 if (extst & AC97_EA_SPDIF) {
 784                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 785                 }
 786         }
 787         up(&ac97->reg_mutex);
 788
 789         return change;
 790 }
 791
 792 static int snd_ac97_put_spsa(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 793 {
 794         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 795         int reg = kcontrol->private_value & 0xff;
 796         int shift = (kcontrol->private_value >> 8) & 0xff;
 797         int mask = (kcontrol->private_value >> 16) & 0xff;
 798         // int invert = (kcontrol->private_value >> 24) & 0xff;
 799         unsigned short value, old, new;
 800         int change;
 801
 802         value = (ucontrol->value.integer.value[0] & mask);
 803
 804         down(&ac97->reg_mutex);
 805         mask <<= shift;
 806         value <<= shift;
 807         old = snd_ac97_read_cache(ac97, reg);
 808         new = (old & ~mask) | value;
 809         change = old != new;
 810
 811         if (change) {
 812                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 813                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 814                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 815                 if (extst & AC97_EA_SPDIF)
 816                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 817         }
 818         up(&ac97->reg_mutex);
 819         return change;
 820 }
 821
 822 const snd_kcontrol_new_t snd_ac97_controls_spdif[5] = {
 823         {
 824                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 825                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 826                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 827                 .info = snd_ac97_spdif_mask_info,
 828                 .get = snd_ac97_spdif_cmask_get,
 829         },
 830         {
 831                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 832                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 833                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 834                 .info = snd_ac97_spdif_mask_info,
 835                 .get = snd_ac97_spdif_pmask_get,
 836         },
 837         {
 838                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 839                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 840                 .info = snd_ac97_spdif_mask_info,
 841                 .get = snd_ac97_spdif_default_get,
 842                 .put = snd_ac97_spdif_default_put,
 843         },
 844
 845         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
 846         {
 847                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 848                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
 849                 .info = snd_ac97_info_volsw,
 850                 .get = snd_ac97_get_volsw,
 851                 .put = snd_ac97_put_spsa,
 852                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
 853         },
 854 };
 855
 856 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
 857 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
 858   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
 859   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
 860
 861 static int snd_ac97_ad18xx_pcm_info_bits(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 862 {
 863         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 864         int mask = (kcontrol->private_value >> 16) & 0x0f;
 865         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 866         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 867
 868         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 869         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 870                 uinfo->count = 2;
 871         else
 872                 uinfo->count = 1;
 873         uinfo->value.integer.min = 0;
 874         uinfo->value.integer.max = mask;
 875         return 0;
 876 }
 877
 878 static int snd_ac97_ad18xx_pcm_get_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 879 {
 880         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 881         int codec = kcontrol->private_value & 3;
 882         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 883         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 884         int mask = (kcontrol->private_value >> 16) & 0xff;
 885
 886         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
 887         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 888                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
 889         return 0;
 890 }
 891
 892 static int snd_ac97_ad18xx_pcm_put_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 893 {
 894         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 895         int codec = kcontrol->private_value & 3;
 896         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 897         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 898         int mask = (kcontrol->private_value >> 16) & 0xff;
 899         unsigned short val, valmask;
 900
 901         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
 902         valmask = mask << lshift;
 903         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
 904                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
 905                 valmask |= mask << rshift;
 906         }
 907         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
 908 }
 909
 910 #define AD18XX_PCM_VOLUME(xname, codec) \
 911 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
 912   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
 913   .private_value = codec }
 914
 915 static int snd_ac97_ad18xx_pcm_info_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 916 {
 917         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 918         uinfo->count = 2;
 919         uinfo->value.integer.min = 0;
 920         uinfo->value.integer.max = 31;
 921         return 0;
 922 }
 923
 924 static int snd_ac97_ad18xx_pcm_get_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 925 {
 926         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 927         int codec = kcontrol->private_value & 3;
 928
 929         down(&ac97->page_mutex);
 930         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
 931         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
 932         up(&ac97->page_mutex);
 933         return 0;
 934 }
 935
 936 static int snd_ac97_ad18xx_pcm_put_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 937 {
 938         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 939         int codec = kcontrol->private_value & 3;
 940         unsigned short val1, val2;
 941
 942         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
 943         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
 944         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
 945 }
 946
 947 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_pcm[2] = {
 948 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
 949 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
 950 };
 951
 952 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_surround[2] = {
 953 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
 954 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
 955 };
 956
 957 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_center[2] = {
 958 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
 959 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
 960 };
 961
 962 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_lfe[2] = {
 963 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
 964 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
 965 };
 966
 967 /*
 968  *
 969  */
 970
 971 static void snd_ac97_powerdown(ac97_t *ac97);
 972
 973 static int snd_ac97_bus_free(ac97_bus_t *bus)
 974 {
 975         if (bus) {
 976                 snd_ac97_bus_proc_done(bus);
 977                 kfree(bus->pcms);
 978                 if (bus->private_free)
 979                         bus->private_free(bus);
 980                 kfree(bus);
 981         }
 982         return 0;
 983 }
 984
 985 static int snd_ac97_bus_dev_free(snd_device_t *device)
 986 {
 987         ac97_bus_t *bus = device->device_data;
 988         return snd_ac97_bus_free(bus);
 989 }
 990
 991 static int snd_ac97_free(ac97_t *ac97)
 992 {
 993         if (ac97) {
 994                 snd_ac97_proc_done(ac97);
 995                 if (ac97->bus) {
 996                         ac97->bus->codec[ac97->num] = NULL;
 997                         if (ac97->bus->shared_type) {
 998                                 down(&shared_codec_mutex);
 999                                 shared_codec[ac97->bus->shared_type-1][ac97->num] = NULL;
1000                                 up(&shared_codec_mutex);
1001                         }
1002                 }
1003                 if (ac97->private_free)
1004                         ac97->private_free(ac97);
1005                 kfree(ac97);
1006         }
1007         return 0;
1008 }
1009
1010 static int snd_ac97_dev_free(snd_device_t *device)
1011 {
1012         ac97_t *ac97 = device->device_data;
1013         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1014         return snd_ac97_free(ac97);
1015 }
1016
1017 static int snd_ac97_try_volume_mix(ac97_t * ac97, int reg)
1018 {
1019         unsigned short val, mask = 0x8000;
1020
1021         if (! snd_ac97_valid_reg(ac97, reg))
1022                 return 0;
1023
1024         switch (reg) {
1025         case AC97_MASTER_TONE:
1026                 return ac97->caps & 0x04 ? 1 : 0;
1027         case AC97_HEADPHONE:
1028                 return ac97->caps & 0x10 ? 1 : 0;
1029         case AC97_REC_GAIN_MIC:
1030                 return ac97->caps & 0x01 ? 1 : 0;
1031         case AC97_3D_CONTROL:
1032                 if (ac97->caps & 0x7c00) {
1033                         val = snd_ac97_read(ac97, reg);
1034                         /* if nonzero - fixed and we can't set it */
1035                         return val == 0;
1036                 }
1037                 return 0;
1038         case AC97_CENTER_LFE_MASTER:    /* center */
1039                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1040                         return 0;
1041                 break;
1042         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1043                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1044                         return 0;
1045                 reg = AC97_CENTER_LFE_MASTER;
1046                 mask = 0x0080;
1047                 break;
1048         case AC97_SURROUND_MASTER:
1049                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1050                         return 0;
1051                 break;
1052         }
1053
1054         if (ac97->limited_regs && test_bit(reg, ac97->reg_accessed))
1055                 return 1; /* allow without check */
1056
1057         val = snd_ac97_read(ac97, reg);
1058         if (!(val & mask)) {
1059                 /* nothing seems to be here - mute flag is not set */
1060                 /* try another test */
1061                 snd_ac97_write_cache(ac97, reg, val | mask);
1062                 val = snd_ac97_read(ac97, reg);
1063                 if (!(val & mask))
1064                         return 0;       /* nothing here */
1065         }
1066         return 1;               /* success, useable */
1067 }
1068
1069 static void check_volume_resolution(ac97_t *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1070 {
1071         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1072         unsigned char max[3] = { 63, 31, 15 };
1073         int i;
1074
1075         *lo_max = *hi_max = 0;
1076         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1077                 unsigned short val;
1078                 snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8));
1079                 val = snd_ac97_read(ac97, reg);
1080                 if (! *lo_max && (val & 0x7f) == cbit[i])
1081                         *lo_max = max[i];
1082                 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1083                         *hi_max = max[i];
1084                 if (*lo_max && *hi_max)
1085                         break;
1086         }
1087 }
1088
1089 int snd_ac97_try_bit(ac97_t * ac97, int reg, int bit)
1090 {
1091         unsigned short mask, val, orig, res;
1092
1093         mask = 1 << bit;
1094         orig = snd_ac97_read(ac97, reg);
1095         val = orig ^ mask;
1096         snd_ac97_write(ac97, reg, val);
1097         res = snd_ac97_read(ac97, reg);
1098         snd_ac97_write_cache(ac97, reg, orig);
1099         return res == val;
1100 }
1101
1102 /* check the volume resolution of center/lfe */
1103 static void snd_ac97_change_volume_params2(ac97_t * ac97, int reg, int shift, unsigned char *max)
1104 {
1105         unsigned short val, val1;
1106
1107         *max = 63;
1108         val = 0x8080 | (0x20 << shift);
1109         snd_ac97_write(ac97, reg, val);
1110         val1 = snd_ac97_read(ac97, reg);
1111         if (val != val1) {
1112                 *max = 31;
1113         }
1114         /* reset volume to zero */
1115         snd_ac97_write_cache(ac97, reg, 0x8080);
1116 }
1117
1118 static inline int printable(unsigned int x)
1119 {
1120         x &= 0xff;
1121         if (x < ' ' || x >= 0x71) {
1122                 if (x <= 0x89)
1123                         return x - 0x71 + 'A';
1124                 return '?';
1125         }
1126         return x;
1127 }
1128
1129 snd_kcontrol_t *snd_ac97_cnew(const snd_kcontrol_new_t *_template, ac97_t * ac97)
1130 {
1131         snd_kcontrol_new_t template;
1132         memcpy(&template, _template, sizeof(template));
1133         snd_runtime_check(!template.index, return NULL);
1134         template.index = ac97->num;
1135         return snd_ctl_new1(&template, ac97);
1136 }
1137
1138 /*
1139  * create mute switch(es) for normal stereo controls
1140  */
1141 static int snd_ac97_cmute_new_stereo(snd_card_t *card, char *name, int reg, int check_stereo, ac97_t *ac97)
1142 {
1143         snd_kcontrol_t *kctl;
1144         int err;
1145         unsigned short val, val1, mute_mask;
1146
1147         if (! snd_ac97_valid_reg(ac97, reg))
1148                 return 0;
1149
1150         mute_mask = 0x8000;
1151         val = snd_ac97_read(ac97, reg);
1152         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1153                 /* check whether both mute bits work */
1154                 val1 = val | 0x8080;
1155                 snd_ac97_write(ac97, reg, val1);
1156                 if (val1 == snd_ac97_read(ac97, reg))
1157                         mute_mask = 0x8080;
1158         }
1159         if (mute_mask == 0x8080) {
1160                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1161                 tmp.index = ac97->num;
1162                 kctl = snd_ctl_new1(&tmp, ac97);
1163         } else {
1164                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1165                 tmp.index = ac97->num;
1166                 kctl = snd_ctl_new1(&tmp, ac97);
1167         }
1168         err = snd_ctl_add(card, kctl);
1169         if (err < 0)
1170                 return err;
1171         /* mute as default */
1172         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1173         return 0;
1174 }
1175
1176 /*
1177  * create a volume for normal stereo/mono controls
1178  */
1179 static int snd_ac97_cvol_new(snd_card_t *card, char *name, int reg, unsigned int lo_max,
1180                              unsigned int hi_max, ac97_t *ac97)
1181 {
1182         int err;
1183         snd_kcontrol_t *kctl;
1184
1185         if (! snd_ac97_valid_reg(ac97, reg))
1186                 return 0;
1187         if (hi_max) {
1188                 /* invert */
1189                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1190                 tmp.index = ac97->num;
1191                 kctl = snd_ctl_new1(&tmp, ac97);
1192         } else {
1193                 /* invert */
1194                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1195                 tmp.index = ac97->num;
1196                 kctl = snd_ctl_new1(&tmp, ac97);
1197         }
1198         err = snd_ctl_add(card, kctl);
1199         if (err < 0)
1200                 return err;
1201         snd_ac97_write_cache(ac97, reg,
1202                              (snd_ac97_read(ac97, reg) & 0x8080) |
1203                              lo_max | (hi_max << 8));
1204         return 0;
1205 }
1206
1207 /*
1208  * create a mute-switch and a volume for normal stereo/mono controls
1209  */
1210 static int snd_ac97_cmix_new_stereo(snd_card_t *card, const char *pfx, int reg, int check_stereo, ac97_t *ac97)
1211 {
1212         int err;
1213         char name[44];
1214         unsigned char lo_max, hi_max;
1215
1216         if (! snd_ac97_valid_reg(ac97, reg))
1217                 return 0;
1218
1219         if (snd_ac97_try_bit(ac97, reg, 15)) {
1220                 sprintf(name, "%s Switch", pfx);
1221                 if ((err = snd_ac97_cmute_new_stereo(card, name, reg, check_stereo, ac97)) < 0)
1222                         return err;
1223         }
1224         check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1225         if (lo_max) {
1226                 sprintf(name, "%s Volume", pfx);
1227                 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1228                         return err;
1229         }
1230         return 0;
1231 }
1232
1233 #define snd_ac97_cmix_new(card, pfx, reg, ac97) snd_ac97_cmix_new_stereo(card, pfx, reg, 0, ac97)
1234 #define snd_ac97_cmute_new(card, name, reg, ac97)       snd_ac97_cmute_new_stereo(card, name, reg, 0, ac97)
1235
1236 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97);
1237
1238 static int snd_ac97_mixer_build(ac97_t * ac97)
1239 {
1240         snd_card_t *card = ac97->bus->card;
1241         snd_kcontrol_t *kctl;
1242         int err;
1243         unsigned int idx;
1244         unsigned char max;
1245
1246         /* build master controls */
1247         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1248         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1249                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1250                         err = snd_ac97_cmute_new(card, "Master Playback Switch", AC97_MASTER, ac97);
1251                 else
1252                         err = snd_ac97_cmix_new(card, "Master Playback", AC97_MASTER, ac97);
1253                 if (err < 0)
1254                         return err;
1255         }
1256
1257         ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080;
1258
1259         /* build center controls */
1260         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER)) {
1261                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1262                         return err;
1263                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1264                         return err;
1265                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1266                 kctl->private_value &= ~(0xff << 16);
1267                 kctl->private_value |= (int)max << 16;
1268                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1269         }
1270
1271         /* build LFE controls */
1272         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1)) {
1273                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1274                         return err;
1275                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1276                         return err;
1277                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1278                 kctl->private_value &= ~(0xff << 16);
1279                 kctl->private_value |= (int)max << 16;
1280                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1281         }
1282
1283         /* build surround controls */
1284         if (snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER)) {
1285                 /* Surround Master (0x38) is with stereo mutes */
1286                 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback", AC97_SURROUND_MASTER, 1, ac97)) < 0)
1287                         return err;
1288         }
1289
1290         /* build headphone controls */
1291         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1292                 if ((err = snd_ac97_cmix_new(card, "Headphone Playback", AC97_HEADPHONE, ac97)) < 0)
1293                         return err;
1294         }
1295
1296         /* build master mono controls */
1297         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1298                 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback", AC97_MASTER_MONO, ac97)) < 0)
1299                         return err;
1300         }
1301
1302         /* build master tone controls */
1303         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1304                 for (idx = 0; idx < 2; idx++) {
1305                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1306                                 return err;
1307                         if (ac97->id == AC97_ID_YMF753) {
1308                                 kctl->private_value &= ~(0xff << 16);
1309                                 kctl->private_value |= 7 << 16;
1310                         }
1311                 }
1312                 snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1313         }
1314
1315         /* build PC Speaker controls */
1316         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1317                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1318             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1319                 for (idx = 0; idx < 2; idx++)
1320                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1321                                 return err;
1322                 snd_ac97_write_cache(ac97, AC97_PC_BEEP,
1323                                      snd_ac97_read(ac97, AC97_PC_BEEP) | 0x801e);
1324         }
1325
1326         /* build Phone controls */
1327         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1328                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1329                         if ((err = snd_ac97_cmix_new(card, "Phone Playback", AC97_PHONE, ac97)) < 0)
1330                                 return err;
1331                 }
1332         }
1333
1334         /* build MIC controls */
1335         if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1336                 if ((err = snd_ac97_cmix_new(card, "Mic Playback", AC97_MIC, ac97)) < 0)
1337                         return err;
1338                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1339                         return err;
1340         }
1341
1342         /* build Line controls */
1343         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1344                 if ((err = snd_ac97_cmix_new(card, "Line Playback", AC97_LINE, ac97)) < 0)
1345                         return err;
1346         }
1347
1348         /* build CD controls */
1349         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1350                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1351                         if ((err = snd_ac97_cmix_new(card, "CD Playback", AC97_CD, ac97)) < 0)
1352                                 return err;
1353                 }
1354         }
1355
1356         /* build Video controls */
1357         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1358                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1359                         if ((err = snd_ac97_cmix_new(card, "Video Playback", AC97_VIDEO, ac97)) < 0)
1360                                 return err;
1361                 }
1362         }
1363
1364         /* build Aux controls */
1365         if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1366                 if ((err = snd_ac97_cmix_new(card, "Aux Playback", AC97_AUX, ac97)) < 0)
1367                         return err;
1368         }
1369
1370         /* build PCM controls */
1371         if (ac97->flags & AC97_AD_MULTI) {
1372                 unsigned short init_val;
1373                 if (ac97->flags & AC97_STEREO_MUTES)
1374                         init_val = 0x9f9f;
1375                 else
1376                         init_val = 0x9f1f;
1377                 for (idx = 0; idx < 2; idx++)
1378                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1379                                 return err;
1380                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1381                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1382                         for (idx = 0; idx < 2; idx++)
1383                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1384                                         return err;
1385                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1386                 }
1387                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1388                         for (idx = 0; idx < 2; idx++)
1389                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1390                                         return err;
1391                         for (idx = 0; idx < 2; idx++)
1392                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1393                                         return err;
1394                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1395                 }
1396                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1397         } else {
1398                 if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1399                         err = snd_ac97_cmute_new(card, "PCM Playback Switch", AC97_PCM, ac97);
1400                 else
1401                         err = snd_ac97_cmix_new(card, "PCM Playback", AC97_PCM, ac97);
1402                 if (err < 0)
1403                         return err;
1404         }
1405
1406         /* build Capture controls */
1407         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1408                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1409                         return err;
1410                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1411                         if ((err = snd_ac97_cmute_new(card, "Capture Switch", AC97_REC_GAIN, ac97)) < 0)
1412                                 return err;
1413                 }
1414                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1415                         return err;
1416                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1417                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1418         }
1419         /* build MIC Capture controls */
1420         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1421                 for (idx = 0; idx < 2; idx++)
1422                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1423                                 return err;
1424                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1425         }
1426
1427         /* build PCM out path & mute control */
1428         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1429                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1430                         return err;
1431         }
1432
1433         /* build Simulated Stereo Enhancement control */
1434         if (ac97->caps & 0x0008) {
1435                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1436                         return err;
1437         }
1438
1439         /* build 3D Stereo Enhancement control */
1440         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1441                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1442                         return err;
1443         }
1444
1445         /* build Loudness control */
1446         if (ac97->caps & 0x0020) {
1447                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1448                         return err;
1449         }
1450
1451         /* build Mono output select control */
1452         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1453                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1454                         return err;
1455         }
1456
1457         /* build Mic select control */
1458         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1459                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1460                         return err;
1461         }
1462
1463         /* build ADC/DAC loopback control */
1464         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1465                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1466                         return err;
1467         }
1468
1469         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1470
1471         /* build 3D controls */
1472         if (ac97->build_ops->build_3d) {
1473                 ac97->build_ops->build_3d(ac97);
1474         } else {
1475                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1476                         unsigned short val;
1477                         val = 0x0707;
1478                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1479                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1480                         val = val == 0x0606;
1481                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1482                                 return err;
1483                         if (val)
1484                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1485                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1486                                 return err;
1487                         if (val)
1488                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1489                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1490                 }
1491         }
1492
1493         /* build S/PDIF controls */
1494         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1495                 if (ac97->build_ops->build_spdif) {
1496                         if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1497                                 return err;
1498                 } else {
1499                         for (idx = 0; idx < 5; idx++)
1500                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1501                                         return err;
1502                         if (ac97->build_ops->build_post_spdif) {
1503                                 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1504                                         return err;
1505                         }
1506                         /* set default PCM S/PDIF params */
1507                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1508                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1509                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1510                 }
1511                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1512         }
1513
1514         /* build chip specific controls */
1515         if (ac97->build_ops->build_specific)
1516                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1517                         return err;
1518
1519         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1520                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1521                 if (! kctl)
1522                         return -ENOMEM;
1523                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1524                         set_inv_eapd(ac97, kctl);
1525                 if ((err = snd_ctl_add(card, kctl)) < 0)
1526                         return err;
1527         }
1528
1529         return 0;
1530 }
1531
1532 static int snd_ac97_modem_build(snd_card_t * card, ac97_t * ac97)
1533 {
1534         int err, idx;
1535
1536         //printk("AC97_GPIO_CFG = %x\n",snd_ac97_read(ac97,AC97_GPIO_CFG));
1537         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1538         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1539         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1540         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1541         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1542
1543         /* build modem switches */
1544         for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1545                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1546                         return err;
1547
1548         /* build chip specific controls */
1549         if (ac97->build_ops->build_specific)
1550                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1551                         return err;
1552
1553         return 0;
1554 }
1555
1556 static int snd_ac97_test_rate(ac97_t *ac97, int reg, int shadow_reg, int rate)
1557 {
1558         unsigned short val;
1559         unsigned int tmp;
1560
1561         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1562         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1563         if (shadow_reg)
1564                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1565         val = snd_ac97_read(ac97, reg);
1566         return val == (tmp & 0xffff);
1567 }
1568
1569 static void snd_ac97_determine_rates(ac97_t *ac97, int reg, int shadow_reg, unsigned int *r_result)
1570 {
1571         unsigned int result = 0;
1572         unsigned short saved;
1573
1574         if (ac97->bus->no_vra) {
1575                 *r_result = SNDRV_PCM_RATE_48000;
1576                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1577                     reg == AC97_PCM_FRONT_DAC_RATE)
1578                         *r_result |= SNDRV_PCM_RATE_96000;
1579                 return;
1580         }
1581
1582         saved = snd_ac97_read(ac97, reg);
1583         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1584                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1585                                      AC97_EA_DRA, 0);
1586         /* test a non-standard rate */
1587         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1588                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1589         /* let's try to obtain standard rates */
1590         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1591                 result |= SNDRV_PCM_RATE_8000;
1592         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1593                 result |= SNDRV_PCM_RATE_11025;
1594         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1595                 result |= SNDRV_PCM_RATE_16000;
1596         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1597                 result |= SNDRV_PCM_RATE_22050;
1598         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1599                 result |= SNDRV_PCM_RATE_32000;
1600         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1601                 result |= SNDRV_PCM_RATE_44100;
1602         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1603                 result |= SNDRV_PCM_RATE_48000;
1604         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1605             reg == AC97_PCM_FRONT_DAC_RATE) {
1606                 /* test standard double rates */
1607                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1608                                      AC97_EA_DRA, AC97_EA_DRA);
1609                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1610                         result |= SNDRV_PCM_RATE_64000;
1611                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1612                         result |= SNDRV_PCM_RATE_88200;
1613                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1614                         result |= SNDRV_PCM_RATE_96000;
1615                 /* some codecs don't support variable double rates */
1616                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1617                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1618                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1619                                      AC97_EA_DRA, 0);
1620         }
1621         /* restore the default value */
1622         snd_ac97_write_cache(ac97, reg, saved);
1623         if (shadow_reg)
1624                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1625         *r_result = result;
1626 }
1627
1628 /* check AC97_SPDIF register to accept which sample rates */
1629 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97)
1630 {
1631         unsigned int result = 0;
1632         int i;
1633         static unsigned short ctl_bits[] = {
1634                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1635         };
1636         static unsigned int rate_bits[] = {
1637                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1638         };
1639
1640         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1641                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1642                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1643                         result |= rate_bits[i];
1644         }
1645         return result;
1646 }
1647
1648 /* look for the codec id table matching with the given id */
1649 static const ac97_codec_id_t *look_for_codec_id(const ac97_codec_id_t *table,
1650                                                 unsigned int id)
1651 {
1652         const ac97_codec_id_t *pid;
1653
1654         for (pid = table; pid->id; pid++)
1655                 if (pid->id == (id & pid->mask))
1656                         return pid;
1657         return NULL;
1658 }
1659
1660 void snd_ac97_get_name(ac97_t *ac97, unsigned int id, char *name, int modem)
1661 {
1662         const ac97_codec_id_t *pid;
1663
1664         sprintf(name, "0x%x %c%c%c", id,
1665                 printable(id >> 24),
1666                 printable(id >> 16),
1667                 printable(id >> 8));
1668         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1669         if (! pid)
1670                 return;
1671
1672         strcpy(name, pid->name);
1673         if (ac97 && pid->patch) {
1674                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1675                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1676                         pid->patch(ac97);
1677         }
1678
1679         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1680         if (pid) {
1681                 strcat(name, " ");
1682                 strcat(name, pid->name);
1683                 if (pid->mask != 0xffffffff)
1684                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1685                 if (ac97 && pid->patch) {
1686                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1687                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1688                                 pid->patch(ac97);
1689                 }
1690         } else
1691                 sprintf(name + strlen(name), " id %x", id & 0xff);
1692 }
1693
1694 /**
1695  * snd_ac97_get_short_name - retrieve codec name
1696  * @ac97: the codec instance
1697  *
1698  * Returns the short identifying name of the codec.
1699  */
1700 const char *snd_ac97_get_short_name(ac97_t *ac97)
1701 {
1702         const ac97_codec_id_t *pid;
1703
1704         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1705                 if (pid->id == (ac97->id & pid->mask))
1706                         return pid->name;
1707         return "unknown codec";
1708 }
1709
1710
1711 /* wait for a while until registers are accessible after RESET
1712  * return 0 if ok, negative not ready
1713  */
1714 static int ac97_reset_wait(ac97_t *ac97, int timeout, int with_modem)
1715 {
1716         unsigned long end_time;
1717         unsigned short val;
1718
1719         end_time = jiffies + timeout;
1720         do {
1721
1722                 /* use preliminary reads to settle the communication */
1723                 snd_ac97_read(ac97, AC97_RESET);
1724                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1725                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1726                 /* modem? */
1727                 if (with_modem) {
1728                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1729                         if (val != 0xffff && (val & 1) != 0)
1730                                 return 0;
1731                 }
1732                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1733                         /* probably only Xbox issue - all registers are read as zero */
1734                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1735                         if (val != 0 && val != 0xffff)
1736                                 return 0;
1737                 } else {
1738                         /* because the PCM or MASTER volume registers can be modified,
1739                          * the REC_GAIN register is used for tests
1740                          */
1741                         /* test if we can write to the record gain volume register */
1742                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1743                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1744                                 return 0;
1745                 }
1746                 set_current_state(TASK_UNINTERRUPTIBLE);
1747                 schedule_timeout(1);
1748         } while (time_after_eq(end_time, jiffies));
1749         return -ENODEV;
1750 }
1751
1752 /**
1753  * snd_ac97_bus - create an AC97 bus component
1754  * @card: the card instance
1755  * @num: the bus number
1756  * @ops: the bus callbacks table
1757  * @private_data: private data pointer for the new instance
1758  * @rbus: the pointer to store the new AC97 bus instance.
1759  *
1760  * Creates an AC97 bus component.  An ac97_bus_t instance is newly
1761  * allocated and initialized.
1762  *
1763  * The ops table must include valid callbacks (at least read and
1764  * write).  The other callbacks, wait and reset, are not mandatory.
1765  *
1766  * The clock is set to 48000.  If another clock is needed, set
1767  * (*rbus)->clock manually.
1768  *
1769  * The AC97 bus instance is registered as a low-level device, so you don't
1770  * have to release it manually.
1771  *
1772  * Returns zero if successful, or a negative error code on failure.
1773  */
1774 int snd_ac97_bus(snd_card_t *card, int num, ac97_bus_ops_t *ops,
1775                  void *private_data, ac97_bus_t **rbus)
1776 {
1777         int err;
1778         ac97_bus_t *bus;
1779         static snd_device_ops_t dev_ops = {
1780                 .dev_free =     snd_ac97_bus_dev_free,
1781         };
1782
1783         snd_assert(card != NULL, return -EINVAL);
1784         snd_assert(rbus != NULL, return -EINVAL);
1785         bus = kcalloc(1, sizeof(*bus), GFP_KERNEL);
1786         if (bus == NULL)
1787                 return -ENOMEM;
1788         bus->card = card;
1789         bus->num = num;
1790         bus->ops = ops;
1791         bus->private_data = private_data;
1792         bus->clock = 48000;
1793         spin_lock_init(&bus->bus_lock);
1794         snd_ac97_bus_proc_init(bus);
1795         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1796                 snd_ac97_bus_free(bus);
1797                 return err;
1798         }
1799         *rbus = bus;
1800         return 0;
1801 }
1802
1803 /* build_ops to do nothing */
1804 static struct snd_ac97_build_ops null_build_ops;
1805
1806 /**
1807  * snd_ac97_mixer - create an Codec97 component
1808  * @bus: the AC97 bus which codec is attached to
1809  * @template: the template of ac97, including index, callbacks and
1810  *         the private data.
1811  * @rac97: the pointer to store the new ac97 instance.
1812  *
1813  * Creates an Codec97 component.  An ac97_t instance is newly
1814  * allocated and initialized from the template.  The codec
1815  * is then initialized by the standard procedure.
1816  *
1817  * The template must include the codec number (num) and address (addr),
1818  * and the private data (private_data).
1819  *
1820  * The ac97 instance is registered as a low-level device, so you don't
1821  * have to release it manually.
1822  *
1823  * Returns zero if successful, or a negative error code on failure.
1824  */
1825 int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97)
1826 {
1827         int err;
1828         ac97_t *ac97;
1829         snd_card_t *card;
1830         char name[64];
1831         unsigned long end_time;
1832         unsigned int reg;
1833         const ac97_codec_id_t *pid;
1834         static snd_device_ops_t ops = {
1835                 .dev_free =     snd_ac97_dev_free,
1836         };
1837
1838         snd_assert(rac97 != NULL, return -EINVAL);
1839         *rac97 = NULL;
1840         snd_assert(bus != NULL && template != NULL, return -EINVAL);
1841         snd_assert(template->num < 4 && bus->codec[template->num] == NULL, return -EINVAL);
1842
1843         snd_assert(bus->shared_type <= AC97_SHARED_TYPES, return -EINVAL);
1844         if (bus->shared_type) {
1845                 /* already shared? */
1846                 down(&shared_codec_mutex);
1847                 ac97 = shared_codec[bus->shared_type-1][template->num];
1848                 if (ac97) {
1849                         if ((ac97_is_audio(ac97) && (template->scaps & AC97_SCAP_SKIP_AUDIO)) ||
1850                             (ac97_is_modem(ac97) && (template->scaps & AC97_SCAP_SKIP_MODEM))) {
1851                                 up(&shared_codec_mutex);
1852                                 return -EACCES; /* skip this */
1853                         }
1854                 }
1855                 up(&shared_codec_mutex);
1856         }
1857
1858         card = bus->card;
1859         ac97 = kcalloc(1, sizeof(*ac97), GFP_KERNEL);
1860         if (ac97 == NULL)
1861                 return -ENOMEM;
1862         ac97->private_data = template->private_data;
1863         ac97->private_free = template->private_free;
1864         ac97->bus = bus;
1865         ac97->pci = template->pci;
1866         ac97->num = template->num;
1867         ac97->addr = template->addr;
1868         ac97->scaps = template->scaps;
1869         ac97->limited_regs = template->limited_regs;
1870         memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
1871         bus->codec[ac97->num] = ac97;
1872         init_MUTEX(&ac97->reg_mutex);
1873         init_MUTEX(&ac97->page_mutex);
1874
1875         if (ac97->pci) {
1876                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
1877                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
1878         }
1879         if (bus->ops->reset) {
1880                 bus->ops->reset(ac97);
1881                 goto __access_ok;
1882         }
1883
1884         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1885         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1886         if (ac97->id && ac97->id != (unsigned int)-1) {
1887                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1888                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
1889                         goto __access_ok;
1890         }
1891
1892         /* reset to defaults */
1893         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
1894                 snd_ac97_write(ac97, AC97_RESET, 0);
1895         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
1896                 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
1897         if (bus->ops->wait)
1898                 bus->ops->wait(ac97);
1899         else {
1900                 udelay(50);
1901                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
1902                         err = ac97_reset_wait(ac97, HZ/2, 1);
1903                 else {
1904                         err = ac97_reset_wait(ac97, HZ/2, 0);
1905                         if (err < 0)
1906                                 err = ac97_reset_wait(ac97, HZ/2, 1);
1907                 }
1908                 if (err < 0) {
1909                         snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
1910                         /* proceed anyway - it's often non-critical */
1911                 }
1912         }
1913       __access_ok:
1914         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1915         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1916         if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
1917             (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
1918                 snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
1919                 snd_ac97_free(ac97);
1920                 return -EIO;
1921         }
1922         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1923         if (pid)
1924                 ac97->flags |= pid->flags;
1925
1926         /* test for AC'97 */
1927         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
1928                 /* test if we can write to the record gain volume register */
1929                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
1930                 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
1931                         ac97->scaps |= AC97_SCAP_AUDIO;
1932         }
1933         if (ac97->scaps & AC97_SCAP_AUDIO) {
1934                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
1935                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
1936                 if (ac97->ext_id == 0xffff)     /* invalid combination */
1937                         ac97->ext_id = 0;
1938         }
1939
1940         /* test for MC'97 */
1941         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
1942                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1943                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
1944                         ac97->ext_mid = 0;
1945                 if (ac97->ext_mid & 1)
1946                         ac97->scaps |= AC97_SCAP_MODEM;
1947         }
1948
1949         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
1950                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
1951                         snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
1952                 snd_ac97_free(ac97);
1953                 return -EACCES;
1954         }
1955
1956         if (bus->ops->reset) // FIXME: always skipping?
1957                 goto __ready_ok;
1958
1959         /* FIXME: add powerdown control */
1960         if (ac97_is_audio(ac97)) {
1961                 /* nothing should be in powerdown mode */
1962                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
1963                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
1964                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
1965                         udelay(100);
1966                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
1967                 }
1968                 /* nothing should be in powerdown mode */
1969                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
1970                 end_time = jiffies + (HZ / 10);
1971                 do {
1972                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
1973                                 goto __ready_ok;
1974                         set_current_state(TASK_UNINTERRUPTIBLE);
1975                         schedule_timeout(1);
1976                 } while (time_after_eq(end_time, jiffies));
1977                 snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
1978         }
1979
1980         /* FIXME: add powerdown control */
1981         if (ac97_is_modem(ac97)) {
1982                 unsigned char tmp;
1983
1984                 /* nothing should be in powerdown mode */
1985                 /* note: it's important to set the rate at first */
1986                 tmp = AC97_MEA_GPIO;
1987                 if (ac97->ext_mid & AC97_MEI_LINE1) {
1988                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
1989                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
1990                 }
1991                 if (ac97->ext_mid & AC97_MEI_LINE2) {
1992                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
1993                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
1994                 }
1995                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
1996                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
1997                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
1998                 }
1999                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2000                 udelay(100);
2001                 /* nothing should be in powerdown mode */
2002                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2003                 end_time = jiffies + (HZ / 10);
2004                 do {
2005                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2006                                 goto __ready_ok;
2007                         set_current_state(TASK_UNINTERRUPTIBLE);
2008                         schedule_timeout(1);
2009                 } while (time_after_eq(end_time, jiffies));
2010                 snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2011         }
2012
2013       __ready_ok:
2014         if (ac97_is_audio(ac97))
2015                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2016         else
2017                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2018         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
2019                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2020                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2021                 if (! bus->no_vra)
2022                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2023                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2024         }
2025         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2026                 /* Intel controllers require double rate data to be put in
2027                  * slots 7+8, so let's hope the codec supports it. */
2028                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2029                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2030                         ac97->flags |= AC97_DOUBLE_RATE;
2031         }
2032         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2033                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2034                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2035         } else {
2036                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2037                 if (ac97->flags & AC97_DOUBLE_RATE)
2038                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2039                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2040         }
2041         if (ac97->ext_id & AC97_EI_SPDIF) {
2042                 /* codec specific code (patch) should override these values */
2043                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2044         }
2045         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2046                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2047         } else {
2048                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2049         }
2050         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2051                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2052                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2053         }
2054         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2055                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2056                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2057         }
2058         /* additional initializations */
2059         if (bus->ops->init)
2060                 bus->ops->init(ac97);
2061         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2062         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2063         if (! ac97->build_ops)
2064                 ac97->build_ops = &null_build_ops;
2065
2066         if (ac97_is_audio(ac97)) {
2067                 char comp[16];
2068                 if (card->mixername[0] == '\0') {
2069                         strcpy(card->mixername, name);
2070                 } else {
2071                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2072                                 strcat(card->mixername, ",");
2073                                 strcat(card->mixername, name);
2074                         }
2075                 }
2076                 sprintf(comp, "AC97a:%08x", ac97->id);
2077                 if ((err = snd_component_add(card, comp)) < 0) {
2078                         snd_ac97_free(ac97);
2079                         return err;
2080                 }
2081                 if (snd_ac97_mixer_build(ac97) < 0) {
2082                         snd_ac97_free(ac97);
2083                         return -ENOMEM;
2084                 }
2085         }
2086         if (ac97_is_modem(ac97)) {
2087                 char comp[16];
2088                 if (card->mixername[0] == '\0') {
2089                         strcpy(card->mixername, name);
2090                 } else {
2091                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2092                                 strcat(card->mixername, ",");
2093                                 strcat(card->mixername, name);
2094                         }
2095                 }
2096                 sprintf(comp, "AC97m:%08x", ac97->id);
2097                 if ((err = snd_component_add(card, comp)) < 0) {
2098                         snd_ac97_free(ac97);
2099                         return err;
2100                 }
2101                 if (snd_ac97_modem_build(card, ac97) < 0) {
2102                         snd_ac97_free(ac97);
2103                         return -ENOMEM;
2104                 }
2105         }
2106         /* make sure the proper powerdown bits are cleared */
2107         if (ac97->scaps) {
2108                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2109                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2110                         reg &= ~AC97_EA_PRJ;
2111                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2112                         reg &= ~(AC97_EA_PRI | AC97_EA_PRK);
2113                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2114         }
2115         snd_ac97_proc_init(ac97);
2116         if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2117                 snd_ac97_free(ac97);
2118                 return err;
2119         }
2120         *rac97 = ac97;
2121
2122         if (bus->shared_type) {
2123                 down(&shared_codec_mutex);
2124                 shared_codec[bus->shared_type-1][ac97->num] = ac97;
2125                 up(&shared_codec_mutex);
2126         }
2127
2128         return 0;
2129 }
2130
2131
2132 /*
2133  * Power down the chip.
2134  *
2135  * MASTER and HEADPHONE registers are muted but the register cache values
2136  * are not changed, so that the values can be restored in snd_ac97_resume().
2137  */
2138 static void snd_ac97_powerdown(ac97_t *ac97)
2139 {
2140         unsigned short power;
2141
2142         if (ac97_is_audio(ac97)) {
2143                 /* some codecs have stereo mute bits */
2144                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2145                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2146         }
2147
2148         power = ac97->regs[AC97_POWERDOWN] | 0x8000;    /* EAPD */
2149         power |= 0x4000;        /* Headphone amplifier powerdown */
2150         power |= 0x0300;        /* ADC & DAC powerdown */
2151         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2152         udelay(100);
2153         power |= 0x0400;        /* Analog Mixer powerdown (Vref on) */
2154         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2155         udelay(100);
2156 #if 0
2157         /* FIXME: this causes click noises on some boards at resume */
2158         power |= 0x3800;        /* AC-link powerdown, internal Clk disable */
2159         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2160 #endif
2161 }
2162
2163
2164 #ifdef CONFIG_PM
2165 /**
2166  * snd_ac97_suspend - General suspend function for AC97 codec
2167  * @ac97: the ac97 instance
2168  *
2169  * Suspends the codec, power down the chip.
2170  */
2171 void snd_ac97_suspend(ac97_t *ac97)
2172 {
2173         if (ac97->build_ops->suspend)
2174                 ac97->build_ops->suspend(ac97);
2175         snd_ac97_powerdown(ac97);
2176 }
2177
2178 /*
2179  * restore ac97 status
2180  */
2181 void snd_ac97_restore_status(ac97_t *ac97)
2182 {
2183         int i;
2184
2185         for (i = 2; i < 0x7c ; i += 2) {
2186                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2187                         continue;
2188                 /* restore only accessible registers
2189                  * some chip (e.g. nm256) may hang up when unsupported registers
2190                  * are accessed..!
2191                  */
2192                 if (test_bit(i, ac97->reg_accessed)) {
2193                         snd_ac97_write(ac97, i, ac97->regs[i]);
2194                         snd_ac97_read(ac97, i);
2195                 }
2196         }
2197 }
2198
2199 /*
2200  * restore IEC958 status
2201  */
2202 void snd_ac97_restore_iec958(ac97_t *ac97)
2203 {
2204         if (ac97->ext_id & AC97_EI_SPDIF) {
2205                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2206                         /* reset spdif status */
2207                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2208                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2209                         if (ac97->flags & AC97_CS_SPDIF)
2210                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2211                         else
2212                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2213                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2214                 }
2215         }
2216 }
2217
2218 /**
2219  * snd_ac97_resume - General resume function for AC97 codec
2220  * @ac97: the ac97 instance
2221  *
2222  * Do the standard resume procedure, power up and restoring the
2223  * old register values.
2224  */
2225 void snd_ac97_resume(ac97_t *ac97)
2226 {
2227         int i;
2228
2229         if (ac97->bus->ops->reset) {
2230                 ac97->bus->ops->reset(ac97);
2231                 goto  __reset_ready;
2232         }
2233
2234         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2235         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2236                 snd_ac97_write(ac97, AC97_RESET, 0);
2237                 udelay(100);
2238                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2239         }
2240         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2241
2242         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2243         if (ac97_is_audio(ac97)) {
2244                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2245                 for (i = HZ/10; i >= 0; i--) {
2246                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2247                                 break;
2248                         set_current_state(TASK_UNINTERRUPTIBLE);
2249                         schedule_timeout(1);
2250                 }
2251                 /* FIXME: extra delay */
2252                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000);
2253                 if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000) {
2254                         set_current_state(TASK_UNINTERRUPTIBLE);
2255                         schedule_timeout(HZ/4);
2256                 }
2257         } else {
2258                 for (i = HZ/10; i >= 0; i--) {
2259                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2260                         if (val != 0xffff && (val & 1) != 0)
2261                                 break;
2262                         set_current_state(TASK_UNINTERRUPTIBLE);
2263                         schedule_timeout(1);
2264                 }
2265         }
2266 __reset_ready:
2267
2268         if (ac97->bus->ops->init)
2269                 ac97->bus->ops->init(ac97);
2270
2271         if (ac97->build_ops->resume)
2272                 ac97->build_ops->resume(ac97);
2273         else {
2274                 snd_ac97_restore_status(ac97);
2275                 snd_ac97_restore_iec958(ac97);
2276         }
2277 }
2278 #endif
2279
2280
2281 /*
2282  * Hardware tuning
2283  */
2284 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2285 {
2286         if (suffix)
2287                 sprintf(dst, "%s %s", src, suffix);
2288         else
2289                 strcpy(dst, src);
2290 }
2291
2292 /* remove the control with the given name and optional suffix */
2293 int snd_ac97_remove_ctl(ac97_t *ac97, const char *name, const char *suffix)
2294 {
2295         snd_ctl_elem_id_t id;
2296         memset(&id, 0, sizeof(id));
2297         set_ctl_name(id.name, name, suffix);
2298         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2299         return snd_ctl_remove_id(ac97->bus->card, &id);
2300 }
2301
2302 static snd_kcontrol_t *ctl_find(ac97_t *ac97, const char *name, const char *suffix)
2303 {
2304         snd_ctl_elem_id_t sid;
2305         memset(&sid, 0, sizeof(sid));
2306         set_ctl_name(sid.name, name, suffix);
2307         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2308         return snd_ctl_find_id(ac97->bus->card, &sid);
2309 }
2310
2311 /* rename the control with the given name and optional suffix */
2312 int snd_ac97_rename_ctl(ac97_t *ac97, const char *src, const char *dst, const char *suffix)
2313 {
2314         snd_kcontrol_t *kctl = ctl_find(ac97, src, suffix);
2315         if (kctl) {
2316                 set_ctl_name(kctl->id.name, dst, suffix);
2317                 return 0;
2318         }
2319         return -ENOENT;
2320 }
2321
2322 /* rename both Volume and Switch controls - don't check the return value */
2323 void snd_ac97_rename_vol_ctl(ac97_t *ac97, const char *src, const char *dst)
2324 {
2325         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2326         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2327 }
2328
2329 /* swap controls */
2330 int snd_ac97_swap_ctl(ac97_t *ac97, const char *s1, const char *s2, const char *suffix)
2331 {
2332         snd_kcontrol_t *kctl1, *kctl2;
2333         kctl1 = ctl_find(ac97, s1, suffix);
2334         kctl2 = ctl_find(ac97, s2, suffix);
2335         if (kctl1 && kctl2) {
2336                 set_ctl_name(kctl1->id.name, s2, suffix);
2337                 set_ctl_name(kctl2->id.name, s1, suffix);
2338                 return 0;
2339         }
2340         return -ENOENT;
2341 }
2342
2343 #if 1
2344 /* bind hp and master controls instead of using only hp control */
2345 static int bind_hp_volsw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2346 {
2347         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2348         if (err > 0) {
2349                 unsigned long priv_saved = kcontrol->private_value;
2350                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2351                 snd_ac97_put_volsw(kcontrol, ucontrol);
2352                 kcontrol->private_value = priv_saved;
2353         }
2354         return err;
2355 }
2356
2357 /* ac97 tune: bind Master and Headphone controls */
2358 static int tune_hp_only(ac97_t *ac97)
2359 {
2360         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2361         snd_kcontrol_t *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2362         if (! msw || ! mvol)
2363                 return -ENOENT;
2364         msw->put = bind_hp_volsw_put;
2365         mvol->put = bind_hp_volsw_put;
2366         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2367         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2368         return 0;
2369 }
2370
2371 #else
2372 /* ac97 tune: use Headphone control as master */
2373 static int tune_hp_only(ac97_t *ac97)
2374 {
2375         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2376                 return -ENOENT;
2377         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2378         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2379         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2380         return 0;
2381 }
2382 #endif
2383
2384 /* ac97 tune: swap Headphone and Master controls */
2385 static int tune_swap_hp(ac97_t *ac97)
2386 {
2387         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2388                 return -ENOENT;
2389         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2390         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2391         return 0;
2392 }
2393
2394 /* ac97 tune: swap Surround and Master controls */
2395 static int tune_swap_surround(ac97_t *ac97)
2396 {
2397         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2398             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2399                 return -ENOENT;
2400         return 0;
2401 }
2402
2403 /* ac97 tune: set up mic sharing for AD codecs */
2404 static int tune_ad_sharing(ac97_t *ac97)
2405 {
2406         unsigned short scfg;
2407         if ((ac97->id & 0xffffff00) != 0x41445300) {
2408                 snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2409                 return -EINVAL;
2410         }
2411         /* Turn on OMS bit to route microphone to back panel */
2412         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2413         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2414         return 0;
2415 }
2416
2417 static const snd_kcontrol_new_t snd_ac97_alc_jack_detect =
2418 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2419
2420 /* ac97 tune: set up ALC jack-select */
2421 static int tune_alc_jack(ac97_t *ac97)
2422 {
2423         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2424                 snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2425                 return -EINVAL;
2426         }
2427         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2428         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2429         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2430 }
2431
2432 /* ac97 tune: inversed EAPD bit */
2433 static int tune_inv_eapd(ac97_t *ac97)
2434 {
2435         snd_kcontrol_t *kctl = ctl_find(ac97, "External Amplifier", NULL);
2436         if (! kctl)
2437                 return -ENOENT;
2438         set_inv_eapd(ac97, kctl);
2439         return 0;
2440 }
2441
2442 static int master_mute_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2443 {
2444         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2445         if (err > 0) {
2446                 ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
2447                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2448                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2449                 unsigned short mask;
2450                 if (shift != rshift)
2451                         mask = 0x8080;
2452                 else
2453                         mask = 0x8000;
2454                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2455                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2456                                      0x8000 : 0);
2457         }
2458         return err;
2459 }
2460
2461 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2462 static int tune_mute_led(ac97_t *ac97)
2463 {
2464         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2465         if (! msw)
2466                 return -ENOENT;
2467         msw->put = master_mute_sw_put;
2468         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2469         snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2470         return 0;
2471 }
2472
2473 struct quirk_table {
2474         const char *name;
2475         int (*func)(ac97_t *);
2476 };
2477
2478 static struct quirk_table applicable_quirks[] = {
2479         { "none", NULL },
2480         { "hp_only", tune_hp_only },
2481         { "swap_hp", tune_swap_hp },
2482         { "swap_surround", tune_swap_surround },
2483         { "ad_sharing", tune_ad_sharing },
2484         { "alc_jack", tune_alc_jack },
2485         { "inv_eapd", tune_inv_eapd },
2486         { "mute_led", tune_mute_led },
2487 };
2488
2489 /* apply the quirk with the given type */
2490 static int apply_quirk(ac97_t *ac97, int type)
2491 {
2492         if (type <= 0)
2493                 return 0;
2494         else if (type >= ARRAY_SIZE(applicable_quirks))
2495                 return -EINVAL;
2496         if (applicable_quirks[type].func)
2497                 return applicable_quirks[type].func(ac97);
2498         return 0;
2499 }
2500
2501 /* apply the quirk with the given name */
2502 static int apply_quirk_str(ac97_t *ac97, const char *typestr)
2503 {
2504         int i;
2505         struct quirk_table *q;
2506
2507         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2508                 q = &applicable_quirks[i];
2509                 if (q->name && ! strcmp(typestr, q->name))
2510                         return apply_quirk(ac97, i);
2511         }
2512         /* for compatibility, accept the numbers, too */
2513         if (*typestr >= '0' && *typestr <= '9')
2514                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2515         return -EINVAL;
2516 }
2517
2518 /**
2519  * snd_ac97_tune_hardware - tune up the hardware
2520  * @ac97: the ac97 instance
2521  * @quirk: quirk list
2522  * @override: explicit quirk value (overrides the list if non-NULL)
2523  *
2524  * Do some workaround for each pci device, such as renaming of the
2525  * headphone (true line-out) control as "Master".
2526  * The quirk-list must be terminated with a zero-filled entry.
2527  *
2528  * Returns zero if successful, or a negative error code on failure.
2529  */
2530
2531 int snd_ac97_tune_hardware(ac97_t *ac97, struct ac97_quirk *quirk, const char *override)
2532 {
2533         int result;
2534
2535         snd_assert(quirk, return -EINVAL);
2536
2537         /* quirk overriden? */
2538         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2539                 result = apply_quirk_str(ac97, override);
2540                 if (result < 0)
2541                         snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2542                 return result;
2543         }
2544
2545         for (; quirk->vendor; quirk++) {
2546                 if (quirk->vendor != ac97->subsystem_vendor)
2547                         continue;
2548                 if ((! quirk->mask && quirk->device == ac97->subsystem_device) ||
2549                     quirk->device == (quirk->mask & ac97->subsystem_device)) {
2550                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2551                                 continue;
2552                         snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2553                         result = apply_quirk(ac97, quirk->type);
2554                         if (result < 0)
2555                                 snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2556                         return result;
2557                 }
2558         }
2559         return 0;
2560 }
2561
2562
2563 /*
2564  *  Exported symbols
2565  */
2566
2567 EXPORT_SYMBOL(snd_ac97_write);
2568 EXPORT_SYMBOL(snd_ac97_read);
2569 EXPORT_SYMBOL(snd_ac97_write_cache);
2570 EXPORT_SYMBOL(snd_ac97_update);
2571 EXPORT_SYMBOL(snd_ac97_update_bits);
2572 EXPORT_SYMBOL(snd_ac97_get_short_name);
2573 EXPORT_SYMBOL(snd_ac97_bus);
2574 EXPORT_SYMBOL(snd_ac97_mixer);
2575 EXPORT_SYMBOL(snd_ac97_pcm_assign);
2576 EXPORT_SYMBOL(snd_ac97_pcm_open);
2577 EXPORT_SYMBOL(snd_ac97_pcm_close);
2578 EXPORT_SYMBOL(snd_ac97_pcm_double_rate_rules);
2579 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2580 EXPORT_SYMBOL(snd_ac97_set_rate);
2581 #ifdef CONFIG_PM
2582 EXPORT_SYMBOL(snd_ac97_resume);
2583 EXPORT_SYMBOL(snd_ac97_suspend);
2584 #endif
2585
2586 /*
2587  *  INIT part
2588  */
2589
2590 static int __init alsa_ac97_init(void)
2591 {
2592         return 0;
2593 }
2594
2595 static void __exit alsa_ac97_exit(void)
2596 {
2597 }
2598
2599 module_init(alsa_ac97_init)
2600 module_exit(alsa_ac97_exit)