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 { 0x434d4978, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 124 { 0x434d4982, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 125 { 0x434d4983, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 126 { 0x43525900, 0xfffffff8, "CS4297",             NULL,           NULL },
 127 { 0x43525910, 0xfffffff8, "CS4297A",            patch_cirrus_spdif,     NULL },
 128 { 0x43525920, 0xfffffff8, "CS4298",             patch_cirrus_spdif,             NULL },
 129 { 0x43525928, 0xfffffff8, "CS4294",             NULL,           NULL },
 130 { 0x43525930, 0xfffffff8, "CS4299",             patch_cirrus_cs4299,    NULL },
 131 { 0x43525948, 0xfffffff8, "CS4201",             NULL,           NULL },
 132 { 0x43525958, 0xfffffff8, "CS4205",             patch_cirrus_spdif,     NULL },
 133 { 0x43525960, 0xfffffff8, "CS4291",             NULL,           NULL },
 134 { 0x43525970, 0xfffffff8, "CS4202",             NULL,           NULL },
 135 { 0x43585421, 0xffffffff, "HSD11246",           NULL,           NULL }, // SmartMC II
 136 { 0x43585428, 0xfffffff8, "Cx20468",            patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
 137 { 0x44543031, 0xfffffff0, "DT0398",             NULL,           NULL },
 138 { 0x454d4328, 0xffffffff, "28028",              NULL,           NULL },  // same as TR28028?
 139 { 0x45838308, 0xffffffff, "ESS1988",            NULL,           NULL },
 140 { 0x48525300, 0xffffff00, "HMP9701",            NULL,           NULL },
 141 { 0x49434501, 0xffffffff, "ICE1230",            NULL,           NULL },
 142 { 0x49434511, 0xffffffff, "ICE1232",            NULL,           NULL }, // alias VIA VT1611A?
 143 { 0x49434514, 0xffffffff, "ICE1232A",           NULL,           NULL },
 144 { 0x49434551, 0xffffffff, "VT1616",             patch_vt1616,   NULL },
 145 { 0x49434552, 0xffffffff, "VT1616i",            patch_vt1616,   NULL }, // VT1616 compatible (chipset integrated)
 146 { 0x49544520, 0xffffffff, "IT2226E",            NULL,           NULL },
 147 { 0x49544561, 0xffffffff, "IT2646E",            patch_it2646,   NULL },
 148 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL,           NULL }, // only guess --jk
 149 { 0x4e534331, 0xffffffff, "LM4549",             NULL,           NULL },
 150 { 0x4e534350, 0xffffffff, "LM4550",             NULL,           NULL },
 151 { 0x50534304, 0xffffffff, "UCB1400",            NULL,           NULL },
 152 { 0x53494c20, 0xffffffe0, "Si3036,8",           NULL,           mpatch_si3036 },
 153 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
 154 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
 155 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
 156 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 157 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
 158 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
 159 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
 160 { 0x574d4c00, 0xffffffff, "WM9701A",            NULL,           NULL },
 161 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
 162 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
 163 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
 164 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
 165 { 0x574d4C12, 0xffffffff, "WM9711,WM9712",      patch_wolfson11, NULL},
 166 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
 167 { 0x594d4800, 0xffffffff, "YMF743",             NULL,           NULL },
 168 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
 169 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
 170 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
 171 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
 172 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
 173 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
 174 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
 175 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
 176 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
 177 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
 178 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
 179 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
 180 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
 181 { 0,          0,          NULL,                 NULL,           NULL }
 182 };
 183
 184 const char *snd_ac97_stereo_enhancements[] =
 185 {
 186   /*   0 */ "No 3D Stereo Enhancement",
 187   /*   1 */ "Analog Devices Phat Stereo",
 188   /*   2 */ "Creative Stereo Enhancement",
 189   /*   3 */ "National Semi 3D Stereo Enhancement",
 190   /*   4 */ "YAMAHA Ymersion",
 191   /*   5 */ "BBE 3D Stereo Enhancement",
 192   /*   6 */ "Crystal Semi 3D Stereo Enhancement",
 193   /*   7 */ "Qsound QXpander",
 194   /*   8 */ "Spatializer 3D Stereo Enhancement",
 195   /*   9 */ "SRS 3D Stereo Enhancement",
 196   /*  10 */ "Platform Tech 3D Stereo Enhancement",
 197   /*  11 */ "AKM 3D Audio",
 198   /*  12 */ "Aureal Stereo Enhancement",
 199   /*  13 */ "Aztech 3D Enhancement",
 200   /*  14 */ "Binaura 3D Audio Enhancement",
 201   /*  15 */ "ESS Technology Stereo Enhancement",
 202   /*  16 */ "Harman International VMAx",
 203   /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
 204   /*  18 */ "Philips Incredible Sound",
 205   /*  19 */ "Texas Instruments 3D Stereo Enhancement",
 206   /*  20 */ "VLSI Technology 3D Stereo Enhancement",
 207   /*  21 */ "TriTech 3D Stereo Enhancement",
 208   /*  22 */ "Realtek 3D Stereo Enhancement",
 209   /*  23 */ "Samsung 3D Stereo Enhancement",
 210   /*  24 */ "Wolfson Microelectronics 3D Enhancement",
 211   /*  25 */ "Delta Integration 3D Enhancement",
 212   /*  26 */ "SigmaTel 3D Enhancement",
 213   /*  27 */ "IC Ensemble/KS Waves",
 214   /*  28 */ "Rockwell 3D Stereo Enhancement",
 215   /*  29 */ "Reserved 29",
 216   /*  30 */ "Reserved 30",
 217   /*  31 */ "Reserved 31"
 218 };
 219
 220 /*
 221  * Shared AC97 controllers (ICH, ATIIXP...)
 222  */
 223 static DECLARE_MUTEX(shared_codec_mutex);
 224 static ac97_t *shared_codec[AC97_SHARED_TYPES][4];
 225
 226
 227 /*
 228  *  I/O routines
 229  */
 230
 231 static int snd_ac97_valid_reg(ac97_t *ac97, unsigned short reg)
 232 {
 233         if (ac97->limited_regs && ! test_bit(reg, ac97->reg_accessed))
 234                 return 0;
 235
 236         /* filter some registers for buggy codecs */
 237         switch (ac97->id) {
 238         case AC97_ID_AK4540:
 239         case AC97_ID_AK4542:
 240                 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
 241                         return 1;
 242                 return 0;
 243         case AC97_ID_AD1819:    /* AD1819 */
 244         case AC97_ID_AD1881:    /* AD1881 */
 245         case AC97_ID_AD1881A:   /* AD1881A */
 246                 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
 247                         return 0;
 248                 return 1;
 249         case AC97_ID_AD1885:    /* AD1885 */
 250         case AC97_ID_AD1886:    /* AD1886 */
 251         case AC97_ID_AD1886A:   /* AD1886A - !!verify!! --jk */
 252         case AC97_ID_AD1887:    /* AD1887 - !!verify!! --jk */
 253                 if (reg == 0x5a)
 254                         return 1;
 255                 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
 256                         return 0;
 257                 return 1;
 258         case AC97_ID_STAC9700:
 259         case AC97_ID_STAC9704:
 260         case AC97_ID_STAC9705:
 261         case AC97_ID_STAC9708:
 262         case AC97_ID_STAC9721:
 263         case AC97_ID_STAC9744:
 264         case AC97_ID_STAC9756:
 265                 if (reg <= 0x3a || reg >= 0x5a)
 266                         return 1;
 267                 return 0;
 268         }
 269         return 1;
 270 }
 271
 272 /**
 273  * snd_ac97_write - write a value on the given register
 274  * @ac97: the ac97 instance
 275  * @reg: the register to change
 276  * @value: the value to set
 277  *
 278  * Writes a value on the given register.  This will invoke the write
 279  * callback directly after the register check.
 280  * This function doesn't change the register cache unlike
 281  * #snd_ca97_write_cache(), so use this only when you don't want to
 282  * reflect the change to the suspend/resume state.
 283  */
 284 void snd_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short value)
 285 {
 286         if (!snd_ac97_valid_reg(ac97, reg))
 287                 return;
 288         if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
 289                 /* Fix H/W bug of ALC100/100P */
 290                 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
 291                         ac97->bus->ops->write(ac97, AC97_RESET, 0);     /* reset audio codec */
 292         }
 293         ac97->bus->ops->write(ac97, reg, value);
 294 }
 295
 296 /**
 297  * snd_ac97_read - read a value from the given register
 298  *
 299  * @ac97: the ac97 instance
 300  * @reg: the register to read
 301  *
 302  * Reads a value from the given register.  This will invoke the read
 303  * callback directly after the register check.
 304  *
 305  * Returns the read value.
 306  */
 307 unsigned short snd_ac97_read(ac97_t *ac97, unsigned short reg)
 308 {
 309         if (!snd_ac97_valid_reg(ac97, reg))
 310                 return 0;
 311         return ac97->bus->ops->read(ac97, reg);
 312 }
 313
 314 /* read a register - return the cached value if already read */
 315 static inline unsigned short snd_ac97_read_cache(ac97_t *ac97, unsigned short reg)
 316 {
 317         if (! test_bit(reg, ac97->reg_accessed)) {
 318                 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
 319                 // set_bit(reg, ac97->reg_accessed);
 320         }
 321         return ac97->regs[reg];
 322 }
 323
 324 /**
 325  * snd_ac97_write_cache - write a value on the given register and update the cache
 326  * @ac97: the ac97 instance
 327  * @reg: the register to change
 328  * @value: the value to set
 329  *
 330  * Writes a value on the given register and updates the register
 331  * cache.  The cached values are used for the cached-read and the
 332  * suspend/resume.
 333  */
 334 void snd_ac97_write_cache(ac97_t *ac97, unsigned short reg, unsigned short value)
 335 {
 336         if (!snd_ac97_valid_reg(ac97, reg))
 337                 return;
 338         down(&ac97->reg_mutex);
 339         ac97->regs[reg] = value;
 340         ac97->bus->ops->write(ac97, reg, value);
 341         set_bit(reg, ac97->reg_accessed);
 342         up(&ac97->reg_mutex);
 343 }
 344
 345 /**
 346  * snd_ac97_update - update the value on the given register
 347  * @ac97: the ac97 instance
 348  * @reg: the register to change
 349  * @value: the value to set
 350  *
 351  * Compares the value with the register cache and updates the value
 352  * only when the value is changed.
 353  *
 354  * Returns 1 if the value is changed, 0 if no change, or a negative
 355  * code on failure.
 356  */
 357 int snd_ac97_update(ac97_t *ac97, unsigned short reg, unsigned short value)
 358 {
 359         int change;
 360
 361         if (!snd_ac97_valid_reg(ac97, reg))
 362                 return -EINVAL;
 363         down(&ac97->reg_mutex);
 364         change = ac97->regs[reg] != value;
 365         if (change) {
 366                 ac97->regs[reg] = value;
 367                 ac97->bus->ops->write(ac97, reg, value);
 368         }
 369         up(&ac97->reg_mutex);
 370         return change;
 371 }
 372
 373 /**
 374  * snd_ac97_update_bits - update the bits on the given register
 375  * @ac97: the ac97 instance
 376  * @reg: the register to change
 377  * @mask: the bit-mask to change
 378  * @value: the value to set
 379  *
 380  * Updates the masked-bits on the given register only when the value
 381  * is changed.
 382  *
 383  * Returns 1 if the bits are changed, 0 if no change, or a negative
 384  * code on failure.
 385  */
 386 int snd_ac97_update_bits(ac97_t *ac97, unsigned short reg, unsigned short mask, unsigned short value)
 387 {
 388         int change;
 389
 390         if (!snd_ac97_valid_reg(ac97, reg))
 391                 return -EINVAL;
 392         down(&ac97->reg_mutex);
 393         change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 394         up(&ac97->reg_mutex);
 395         return change;
 396 }
 397
 398 /* no lock version - see snd_ac97_updat_bits() */
 399 int snd_ac97_update_bits_nolock(ac97_t *ac97, unsigned short reg,
 400                                 unsigned short mask, unsigned short value)
 401 {
 402         int change;
 403         unsigned short old, new;
 404
 405         old = snd_ac97_read_cache(ac97, reg);
 406         new = (old & ~mask) | value;
 407         change = old != new;
 408         if (change) {
 409                 ac97->regs[reg] = new;
 410                 ac97->bus->ops->write(ac97, reg, new);
 411         }
 412         return change;
 413 }
 414
 415 static int snd_ac97_ad18xx_update_pcm_bits(ac97_t *ac97, int codec, unsigned short mask, unsigned short value)
 416 {
 417         int change;
 418         unsigned short old, new, cfg;
 419
 420         down(&ac97->page_mutex);
 421         old = ac97->spec.ad18xx.pcmreg[codec];
 422         new = (old & ~mask) | value;
 423         change = old != new;
 424         if (change) {
 425                 down(&ac97->reg_mutex);
 426                 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
 427                 ac97->spec.ad18xx.pcmreg[codec] = new;
 428                 /* select single codec */
 429                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 430                                  (cfg & ~0x7000) |
 431                                  ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
 432                 /* update PCM bits */
 433                 ac97->bus->ops->write(ac97, AC97_PCM, new);
 434                 /* select all codecs */
 435                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 436                                  cfg | 0x7000);
 437                 up(&ac97->reg_mutex);
 438         }
 439         up(&ac97->page_mutex);
 440         return change;
 441 }
 442
 443 /*
 444  * Controls
 445  */
 446
 447 int snd_ac97_info_enum_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 448 {
 449         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 450
 451         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 452         uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
 453         uinfo->value.enumerated.items = e->mask;
 454
 455         if (uinfo->value.enumerated.item > e->mask - 1)
 456                 uinfo->value.enumerated.item = e->mask - 1;
 457         strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
 458         return 0;
 459 }
 460
 461 int snd_ac97_get_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 462 {
 463         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 464         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 465         unsigned short val;
 466
 467         val = snd_ac97_read_cache(ac97, e->reg);
 468         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (e->mask - 1);
 469         if (e->shift_l != e->shift_r)
 470                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (e->mask - 1);
 471
 472         return 0;
 473 }
 474
 475 int snd_ac97_put_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 476 {
 477         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 478         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 479         unsigned short val;
 480         unsigned short mask;
 481
 482         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
 483                 return -EINVAL;
 484         val = ucontrol->value.enumerated.item[0] << e->shift_l;
 485         mask = (e->mask - 1) << e->shift_l;
 486         if (e->shift_l != e->shift_r) {
 487                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
 488                         return -EINVAL;
 489                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
 490                 mask |= (e->mask - 1) << e->shift_r;
 491         }
 492         return snd_ac97_update_bits(ac97, e->reg, mask, val);
 493 }
 494
 495 /* save/restore ac97 v2.3 paging */
 496 static int snd_ac97_page_save(ac97_t *ac97, int reg, snd_kcontrol_t *kcontrol)
 497 {
 498         int page_save = -1;
 499         if ((kcontrol->private_value & (1<<25)) &&
 500             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
 501             (reg >= 0x60 && reg < 0x70)) {
 502                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
 503                 down(&ac97->page_mutex); /* lock paging */
 504                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
 505                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
 506         }
 507         return page_save;
 508 }
 509
 510 static void snd_ac97_page_restore(ac97_t *ac97, int page_save)
 511 {
 512         if (page_save >= 0) {
 513                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
 514                 up(&ac97->page_mutex); /* unlock paging */
 515         }
 516 }
 517
 518 /* volume and switch controls */
 519 int snd_ac97_info_volsw(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 520 {
 521         int mask = (kcontrol->private_value >> 16) & 0xff;
 522         int shift = (kcontrol->private_value >> 8) & 0x0f;
 523         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 524
 525         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 526         uinfo->count = shift == rshift ? 1 : 2;
 527         uinfo->value.integer.min = 0;
 528         uinfo->value.integer.max = mask;
 529         return 0;
 530 }
 531
 532 int snd_ac97_get_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 533 {
 534         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 535         int reg = kcontrol->private_value & 0xff;
 536         int shift = (kcontrol->private_value >> 8) & 0x0f;
 537         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 538         int mask = (kcontrol->private_value >> 16) & 0xff;
 539         int invert = (kcontrol->private_value >> 24) & 0x01;
 540         int page_save;
 541
 542         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 543         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
 544         if (shift != rshift)
 545                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
 546         if (invert) {
 547                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 548                 if (shift != rshift)
 549                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 550         }
 551         snd_ac97_page_restore(ac97, page_save);
 552         return 0;
 553 }
 554
 555 int snd_ac97_put_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 556 {
 557         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 558         int reg = kcontrol->private_value & 0xff;
 559         int shift = (kcontrol->private_value >> 8) & 0x0f;
 560         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 561         int mask = (kcontrol->private_value >> 16) & 0xff;
 562         int invert = (kcontrol->private_value >> 24) & 0x01;
 563         int err, page_save;
 564         unsigned short val, val2, val_mask;
 565
 566         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 567         val = (ucontrol->value.integer.value[0] & mask);
 568         if (invert)
 569                 val = mask - val;
 570         val_mask = mask << shift;
 571         val = val << shift;
 572         if (shift != rshift) {
 573                 val2 = (ucontrol->value.integer.value[1] & mask);
 574                 if (invert)
 575                         val2 = mask - val2;
 576                 val_mask |= mask << rshift;
 577                 val |= val2 << rshift;
 578         }
 579         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
 580         snd_ac97_page_restore(ac97, page_save);
 581         return err;
 582 }
 583
 584 static const snd_kcontrol_new_t snd_ac97_controls_master_mono[2] = {
 585 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
 586 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
 587 };
 588
 589 static const snd_kcontrol_new_t snd_ac97_controls_tone[2] = {
 590 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
 591 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
 592 };
 593
 594 static const snd_kcontrol_new_t snd_ac97_controls_pc_beep[2] = {
 595 AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 596 AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 597 };
 598
 599 static const snd_kcontrol_new_t snd_ac97_controls_mic_boost =
 600         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
 601
 602
 603 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
 604 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
 605 static const char* std_mix[] = {"Mix", "Mic"};
 606 static const char* std_mic[] = {"Mic1", "Mic2"};
 607
 608 static const struct ac97_enum std_enum[] = {
 609 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
 610 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
 611 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
 612 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
 613 };
 614
 615 static const snd_kcontrol_new_t snd_ac97_control_capture_src =
 616 AC97_ENUM("Capture Source", std_enum[0]);
 617
 618 static const snd_kcontrol_new_t snd_ac97_control_capture_vol =
 619 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
 620
 621 static const snd_kcontrol_new_t snd_ac97_controls_mic_capture[2] = {
 622 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
 623 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
 624 };
 625
 626 typedef enum {
 627         AC97_GENERAL_PCM_OUT = 0,
 628         AC97_GENERAL_STEREO_ENHANCEMENT,
 629         AC97_GENERAL_3D,
 630         AC97_GENERAL_LOUDNESS,
 631         AC97_GENERAL_MONO,
 632         AC97_GENERAL_MIC,
 633         AC97_GENERAL_LOOPBACK
 634 } ac97_general_index_t;
 635
 636 static const snd_kcontrol_new_t snd_ac97_controls_general[7] = {
 637 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
 638 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
 639 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 640 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
 641 AC97_ENUM("Mono Output Select", std_enum[2]),
 642 AC97_ENUM("Mic Select", std_enum[3]),
 643 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
 644 };
 645
 646 const snd_kcontrol_new_t snd_ac97_controls_3d[2] = {
 647 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
 648 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
 649 };
 650
 651 static const snd_kcontrol_new_t snd_ac97_controls_center[2] = {
 652 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
 653 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
 654 };
 655
 656 static const snd_kcontrol_new_t snd_ac97_controls_lfe[2] = {
 657 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
 658 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
 659 };
 660
 661 static const snd_kcontrol_new_t snd_ac97_controls_surround[2] = {
 662 AC97_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
 663 AC97_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 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 /* change the existing EAPD control as inverted */
 670 static void set_inv_eapd(ac97_t *ac97, snd_kcontrol_t *kctl)
 671 {
 672         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
 673         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
 674         ac97->scaps |= AC97_SCAP_INV_EAPD;
 675 }
 676
 677 static int snd_ac97_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 678 {
 679         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 680         uinfo->count = 1;
 681         return 0;
 682 }
 683
 684 static int snd_ac97_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 685 {
 686         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 687                                            IEC958_AES0_NONAUDIO |
 688                                            IEC958_AES0_CON_EMPHASIS_5015 |
 689                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 690         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 691                                            IEC958_AES1_CON_ORIGINAL;
 692         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 693         return 0;
 694 }
 695
 696 static int snd_ac97_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 697 {
 698         /* FIXME: AC'97 spec doesn't say which bits are used for what */
 699         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 700                                            IEC958_AES0_NONAUDIO |
 701                                            IEC958_AES0_PRO_FS |
 702                                            IEC958_AES0_PRO_EMPHASIS_5015;
 703         return 0;
 704 }
 705
 706 static int snd_ac97_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 707 {
 708         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 709
 710         down(&ac97->reg_mutex);
 711         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
 712         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
 713         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
 714         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
 715         up(&ac97->reg_mutex);
 716         return 0;
 717 }
 718
 719 static int snd_ac97_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 720 {
 721         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 722         unsigned int new = 0;
 723         unsigned short val = 0;
 724         int change;
 725
 726         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
 727         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
 728                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
 729                 switch (new & IEC958_AES0_PRO_FS) {
 730                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
 731                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
 732                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
 733                 default:                       val |= 1<<12; break;
 734                 }
 735                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 736                         val |= 1<<3;
 737         } else {
 738                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
 739                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
 740                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
 741                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 742                         val |= 1<<3;
 743                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
 744                         val |= 1<<2;
 745                 val |= ((new >> 8) & 0xff) << 4;        // category + original
 746                 switch ((new >> 24) & 0xff) {
 747                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
 748                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
 749                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
 750                 default:                       val |= 1<<12; break;
 751                 }
 752         }
 753
 754         down(&ac97->reg_mutex);
 755         change = ac97->spdif_status != new;
 756         ac97->spdif_status = new;
 757
 758         if (ac97->flags & AC97_CS_SPDIF) {
 759                 int x = (val >> 12) & 0x03;
 760                 switch (x) {
 761                 case 0: x = 1; break;  // 44.1
 762                 case 2: x = 0; break;  // 48.0
 763                 default: x = 0; break; // illegal.
 764                 }
 765                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
 766         } else if (ac97->flags & AC97_CX_SPDIF) {
 767                 int v;
 768                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
 769                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
 770                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
 771                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
 772                                                       v);
 773         } else {
 774                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 775                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 776
 777                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
 778                 if (extst & AC97_EA_SPDIF) {
 779                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 780                 }
 781         }
 782         up(&ac97->reg_mutex);
 783
 784         return change;
 785 }
 786
 787 static int snd_ac97_put_spsa(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 788 {
 789         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 790         int reg = kcontrol->private_value & 0xff;
 791         int shift = (kcontrol->private_value >> 8) & 0xff;
 792         int mask = (kcontrol->private_value >> 16) & 0xff;
 793         // int invert = (kcontrol->private_value >> 24) & 0xff;
 794         unsigned short value, old, new;
 795         int change;
 796
 797         value = (ucontrol->value.integer.value[0] & mask);
 798
 799         down(&ac97->reg_mutex);
 800         mask <<= shift;
 801         value <<= shift;
 802         old = snd_ac97_read_cache(ac97, reg);
 803         new = (old & ~mask) | value;
 804         change = old != new;
 805
 806         if (change) {
 807                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 808                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 809                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 810                 if (extst & AC97_EA_SPDIF)
 811                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 812         }
 813         up(&ac97->reg_mutex);
 814         return change;
 815 }
 816
 817 const snd_kcontrol_new_t snd_ac97_controls_spdif[5] = {
 818         {
 819                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 820                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 821                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 822                 .info = snd_ac97_spdif_mask_info,
 823                 .get = snd_ac97_spdif_cmask_get,
 824         },
 825         {
 826                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 827                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 828                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 829                 .info = snd_ac97_spdif_mask_info,
 830                 .get = snd_ac97_spdif_pmask_get,
 831         },
 832         {
 833                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 834                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 835                 .info = snd_ac97_spdif_mask_info,
 836                 .get = snd_ac97_spdif_default_get,
 837                 .put = snd_ac97_spdif_default_put,
 838         },
 839
 840         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
 841         {
 842                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 843                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
 844                 .info = snd_ac97_info_volsw,
 845                 .get = snd_ac97_get_volsw,
 846                 .put = snd_ac97_put_spsa,
 847                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
 848         },
 849 };
 850
 851 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
 852 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
 853   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
 854   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
 855
 856 static int snd_ac97_ad18xx_pcm_info_bits(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 857 {
 858         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 859         int mask = (kcontrol->private_value >> 16) & 0x0f;
 860         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 861         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 862
 863         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 864         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 865                 uinfo->count = 2;
 866         else
 867                 uinfo->count = 1;
 868         uinfo->value.integer.min = 0;
 869         uinfo->value.integer.max = mask;
 870         return 0;
 871 }
 872
 873 static int snd_ac97_ad18xx_pcm_get_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 874 {
 875         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 876         int codec = kcontrol->private_value & 3;
 877         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 878         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 879         int mask = (kcontrol->private_value >> 16) & 0xff;
 880
 881         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
 882         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 883                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
 884         return 0;
 885 }
 886
 887 static int snd_ac97_ad18xx_pcm_put_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 888 {
 889         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 890         int codec = kcontrol->private_value & 3;
 891         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 892         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 893         int mask = (kcontrol->private_value >> 16) & 0xff;
 894         unsigned short val, valmask;
 895
 896         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
 897         valmask = mask << lshift;
 898         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
 899                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
 900                 valmask |= mask << rshift;
 901         }
 902         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
 903 }
 904
 905 #define AD18XX_PCM_VOLUME(xname, codec) \
 906 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
 907   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
 908   .private_value = codec }
 909
 910 static int snd_ac97_ad18xx_pcm_info_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 911 {
 912         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 913         uinfo->count = 2;
 914         uinfo->value.integer.min = 0;
 915         uinfo->value.integer.max = 31;
 916         return 0;
 917 }
 918
 919 static int snd_ac97_ad18xx_pcm_get_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 920 {
 921         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 922         int codec = kcontrol->private_value & 3;
 923
 924         down(&ac97->page_mutex);
 925         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
 926         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
 927         up(&ac97->page_mutex);
 928         return 0;
 929 }
 930
 931 static int snd_ac97_ad18xx_pcm_put_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 932 {
 933         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 934         int codec = kcontrol->private_value & 3;
 935         unsigned short val1, val2;
 936
 937         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
 938         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
 939         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
 940 }
 941
 942 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_pcm[2] = {
 943 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
 944 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
 945 };
 946
 947 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_surround[2] = {
 948 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
 949 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
 950 };
 951
 952 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_center[2] = {
 953 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
 954 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
 955 };
 956
 957 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_lfe[2] = {
 958 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
 959 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
 960 };
 961
 962 /*
 963  *
 964  */
 965
 966 static void snd_ac97_powerdown(ac97_t *ac97);
 967
 968 static int snd_ac97_bus_free(ac97_bus_t *bus)
 969 {
 970         if (bus) {
 971                 snd_ac97_bus_proc_done(bus);
 972                 kfree(bus->pcms);
 973                 if (bus->private_free)
 974                         bus->private_free(bus);
 975                 kfree(bus);
 976         }
 977         return 0;
 978 }
 979
 980 static int snd_ac97_bus_dev_free(snd_device_t *device)
 981 {
 982         ac97_bus_t *bus = device->device_data;
 983         return snd_ac97_bus_free(bus);
 984 }
 985
 986 static int snd_ac97_free(ac97_t *ac97)
 987 {
 988         if (ac97) {
 989                 snd_ac97_proc_done(ac97);
 990                 if (ac97->bus) {
 991                         ac97->bus->codec[ac97->num] = NULL;
 992                         if (ac97->bus->shared_type) {
 993                                 down(&shared_codec_mutex);
 994                                 shared_codec[ac97->bus->shared_type-1][ac97->num] = NULL;
 995                                 up(&shared_codec_mutex);
 996                         }
 997                 }
 998                 if (ac97->private_free)
 999                         ac97->private_free(ac97);
1000                 kfree(ac97);
1001         }
1002         return 0;
1003 }
1004
1005 static int snd_ac97_dev_free(snd_device_t *device)
1006 {
1007         ac97_t *ac97 = device->device_data;
1008         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1009         return snd_ac97_free(ac97);
1010 }
1011
1012 static int snd_ac97_try_volume_mix(ac97_t * ac97, int reg)
1013 {
1014         unsigned short val, mask = 0x8000;
1015
1016         if (! snd_ac97_valid_reg(ac97, reg))
1017                 return 0;
1018
1019         switch (reg) {
1020         case AC97_MASTER_TONE:
1021                 return ac97->caps & 0x04 ? 1 : 0;
1022         case AC97_HEADPHONE:
1023                 return ac97->caps & 0x10 ? 1 : 0;
1024         case AC97_REC_GAIN_MIC:
1025                 return ac97->caps & 0x01 ? 1 : 0;
1026         case AC97_3D_CONTROL:
1027                 if (ac97->caps & 0x7c00) {
1028                         val = snd_ac97_read(ac97, reg);
1029                         /* if nonzero - fixed and we can't set it */
1030                         return val == 0;
1031                 }
1032                 return 0;
1033         case AC97_CENTER_LFE_MASTER:    /* center */
1034                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1035                         return 0;
1036                 break;
1037         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1038                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1039                         return 0;
1040                 reg = AC97_CENTER_LFE_MASTER;
1041                 mask = 0x0080;
1042                 break;
1043         case AC97_SURROUND_MASTER:
1044                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1045                         return 0;
1046                 break;
1047         }
1048
1049         if (ac97->limited_regs && test_bit(reg, ac97->reg_accessed))
1050                 return 1; /* allow without check */
1051
1052         val = snd_ac97_read(ac97, reg);
1053         if (!(val & mask)) {
1054                 /* nothing seems to be here - mute flag is not set */
1055                 /* try another test */
1056                 snd_ac97_write_cache(ac97, reg, val | mask);
1057                 val = snd_ac97_read(ac97, reg);
1058                 if (!(val & mask))
1059                         return 0;       /* nothing here */
1060         }
1061         return 1;               /* success, useable */
1062 }
1063
1064 static void check_volume_resolution(ac97_t *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1065 {
1066         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1067         unsigned char max[3] = { 63, 31, 15 };
1068         int i;
1069
1070         *lo_max = *hi_max = 0;
1071         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1072                 unsigned short val;
1073                 snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8));
1074                 val = snd_ac97_read(ac97, reg);
1075                 if (! *lo_max && (val & cbit[i]))
1076                         *lo_max = max[i];
1077                 if (! *hi_max && (val & (cbit[i] << 8)))
1078                         *hi_max = max[i];
1079                 if (*lo_max && *hi_max)
1080                         break;
1081         }
1082 }
1083
1084 int snd_ac97_try_bit(ac97_t * ac97, int reg, int bit)
1085 {
1086         unsigned short mask, val, orig, res;
1087
1088         mask = 1 << bit;
1089         orig = snd_ac97_read(ac97, reg);
1090         val = orig ^ mask;
1091         snd_ac97_write(ac97, reg, val);
1092         res = snd_ac97_read(ac97, reg);
1093         snd_ac97_write_cache(ac97, reg, orig);
1094         return res == val;
1095 }
1096
1097 /* check the volume resolution of center/lfe */
1098 static void snd_ac97_change_volume_params2(ac97_t * ac97, int reg, int shift, unsigned char *max)
1099 {
1100         unsigned short val, val1;
1101
1102         *max = 63;
1103         val = 0x8080 | (0x20 << shift);
1104         snd_ac97_write(ac97, reg, val);
1105         val1 = snd_ac97_read(ac97, reg);
1106         if (val != val1) {
1107                 *max = 31;
1108         }
1109         /* reset volume to zero */
1110         snd_ac97_write_cache(ac97, reg, 0x8080);
1111 }
1112
1113 static inline int printable(unsigned int x)
1114 {
1115         x &= 0xff;
1116         if (x < ' ' || x >= 0x71) {
1117                 if (x <= 0x89)
1118                         return x - 0x71 + 'A';
1119                 return '?';
1120         }
1121         return x;
1122 }
1123
1124 snd_kcontrol_t *snd_ac97_cnew(const snd_kcontrol_new_t *_template, ac97_t * ac97)
1125 {
1126         snd_kcontrol_new_t template;
1127         memcpy(&template, _template, sizeof(template));
1128         snd_runtime_check(!template.index, return NULL);
1129         template.index = ac97->num;
1130         return snd_ctl_new1(&template, ac97);
1131 }
1132
1133 /*
1134  * create mute switch(es) for normal stereo controls
1135  */
1136 static int snd_ac97_cmute_new_stereo(snd_card_t *card, char *name, int reg, int check_stereo, ac97_t *ac97)
1137 {
1138         snd_kcontrol_t *kctl;
1139         int err;
1140         unsigned short val, val1, mute_mask;
1141
1142         if (! snd_ac97_valid_reg(ac97, reg))
1143                 return 0;
1144
1145         mute_mask = 0x8000;
1146         val = snd_ac97_read(ac97, reg);
1147         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1148                 /* check whether both mute bits work */
1149                 val1 = val | 0x8080;
1150                 snd_ac97_write(ac97, reg, val1);
1151                 if (val1 == snd_ac97_read(ac97, reg))
1152                         mute_mask = 0x8080;
1153         }
1154         if (mute_mask == 0x8080) {
1155                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1156                 tmp.index = ac97->num;
1157                 kctl = snd_ctl_new1(&tmp, ac97);
1158         } else {
1159                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1160                 tmp.index = ac97->num;
1161                 kctl = snd_ctl_new1(&tmp, ac97);
1162         }
1163         err = snd_ctl_add(card, kctl);
1164         if (err < 0)
1165                 return err;
1166         /* mute as default */
1167         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1168         return 0;
1169 }
1170
1171 /*
1172  * create a volume for normal stereo/mono controls
1173  */
1174 static int snd_ac97_cvol_new(snd_card_t *card, char *name, int reg, unsigned int lo_max,
1175                              unsigned int hi_max, ac97_t *ac97)
1176 {
1177         int err;
1178         snd_kcontrol_t *kctl;
1179
1180         if (! snd_ac97_valid_reg(ac97, reg))
1181                 return 0;
1182         if (hi_max) {
1183                 /* invert */
1184                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1185                 tmp.index = ac97->num;
1186                 kctl = snd_ctl_new1(&tmp, ac97);
1187         } else {
1188                 /* invert */
1189                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1190                 tmp.index = ac97->num;
1191                 kctl = snd_ctl_new1(&tmp, ac97);
1192         }
1193         err = snd_ctl_add(card, kctl);
1194         if (err < 0)
1195                 return err;
1196         snd_ac97_write_cache(ac97, reg,
1197                              (snd_ac97_read(ac97, reg) & 0x8080) |
1198                              lo_max | (hi_max << 8));
1199         return 0;
1200 }
1201
1202 /*
1203  * create a mute-switch and a volume for normal stereo/mono controls
1204  */
1205 static int snd_ac97_cmix_new_stereo(snd_card_t *card, const char *pfx, int reg, int check_stereo, ac97_t *ac97)
1206 {
1207         int err;
1208         char name[44];
1209         unsigned char lo_max, hi_max;
1210
1211         if (! snd_ac97_valid_reg(ac97, reg))
1212                 return 0;
1213
1214         if (snd_ac97_try_bit(ac97, reg, 15)) {
1215                 sprintf(name, "%s Switch", pfx);
1216                 if ((err = snd_ac97_cmute_new_stereo(card, name, reg, check_stereo, ac97)) < 0)
1217                         return err;
1218         }
1219         check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1220         if (lo_max) {
1221                 sprintf(name, "%s Volume", pfx);
1222                 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1223                         return err;
1224         }
1225         return 0;
1226 }
1227
1228 #define snd_ac97_cmix_new(card, pfx, reg, ac97) snd_ac97_cmix_new_stereo(card, pfx, reg, 0, ac97)
1229 #define snd_ac97_cmute_new(card, name, reg, ac97)       snd_ac97_cmute_new_stereo(card, name, reg, 0, ac97)
1230
1231 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97);
1232
1233 static int snd_ac97_mixer_build(ac97_t * ac97)
1234 {
1235         snd_card_t *card = ac97->bus->card;
1236         snd_kcontrol_t *kctl;
1237         int err;
1238         unsigned int idx;
1239         unsigned char max;
1240
1241         /* build master controls */
1242         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1243         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1244                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1245                         err = snd_ac97_cmute_new(card, "Master Playback Switch", AC97_MASTER, ac97);
1246                 else
1247                         err = snd_ac97_cmix_new(card, "Master Playback", AC97_MASTER, ac97);
1248                 if (err < 0)
1249                         return err;
1250         }
1251
1252         ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080;
1253
1254         /* build center controls */
1255         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER)) {
1256                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1257                         return err;
1258                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1259                         return err;
1260                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1261                 kctl->private_value &= ~(0xff << 16);
1262                 kctl->private_value |= (int)max << 16;
1263                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1264         }
1265
1266         /* build LFE controls */
1267         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1)) {
1268                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1269                         return err;
1270                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1271                         return err;
1272                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1273                 kctl->private_value &= ~(0xff << 16);
1274                 kctl->private_value |= (int)max << 16;
1275                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1276         }
1277
1278         /* build surround controls */
1279         if (snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER)) {
1280                 /* Surround Master (0x38) is with stereo mutes */
1281                 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback", AC97_SURROUND_MASTER, 1, ac97)) < 0)
1282                         return err;
1283         }
1284
1285         /* build headphone controls */
1286         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1287                 if ((err = snd_ac97_cmix_new(card, "Headphone Playback", AC97_HEADPHONE, ac97)) < 0)
1288                         return err;
1289         }
1290
1291         /* build master mono controls */
1292         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1293                 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback", AC97_MASTER_MONO, ac97)) < 0)
1294                         return err;
1295         }
1296
1297         /* build master tone controls */
1298         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1299                 for (idx = 0; idx < 2; idx++) {
1300                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1301                                 return err;
1302                         if (ac97->id == AC97_ID_YMF753) {
1303                                 kctl->private_value &= ~(0xff << 16);
1304                                 kctl->private_value |= 7 << 16;
1305                         }
1306                 }
1307                 snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1308         }
1309
1310         /* build PC Speaker controls */
1311         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1312                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1313             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1314                 for (idx = 0; idx < 2; idx++)
1315                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1316                                 return err;
1317                 snd_ac97_write_cache(ac97, AC97_PC_BEEP,
1318                                      snd_ac97_read(ac97, AC97_PC_BEEP) | 0x801e);
1319         }
1320
1321         /* build Phone controls */
1322         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1323                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1324                         if ((err = snd_ac97_cmix_new(card, "Phone Playback", AC97_PHONE, ac97)) < 0)
1325                                 return err;
1326                 }
1327         }
1328
1329         /* build MIC controls */
1330         if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1331                 if ((err = snd_ac97_cmix_new(card, "Mic Playback", AC97_MIC, ac97)) < 0)
1332                         return err;
1333                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1334                         return err;
1335         }
1336
1337         /* build Line controls */
1338         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1339                 if ((err = snd_ac97_cmix_new(card, "Line Playback", AC97_LINE, ac97)) < 0)
1340                         return err;
1341         }
1342
1343         /* build CD controls */
1344         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1345                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1346                         if ((err = snd_ac97_cmix_new(card, "CD Playback", AC97_CD, ac97)) < 0)
1347                                 return err;
1348                 }
1349         }
1350
1351         /* build Video controls */
1352         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1353                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1354                         if ((err = snd_ac97_cmix_new(card, "Video Playback", AC97_VIDEO, ac97)) < 0)
1355                                 return err;
1356                 }
1357         }
1358
1359         /* build Aux controls */
1360         if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1361                 if ((err = snd_ac97_cmix_new(card, "Aux Playback", AC97_AUX, ac97)) < 0)
1362                         return err;
1363         }
1364
1365         /* build PCM controls */
1366         if (ac97->flags & AC97_AD_MULTI) {
1367                 unsigned short init_val;
1368                 if (ac97->flags & AC97_STEREO_MUTES)
1369                         init_val = 0x9f9f;
1370                 else
1371                         init_val = 0x9f1f;
1372                 for (idx = 0; idx < 2; idx++)
1373                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1374                                 return err;
1375                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1376                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1377                         for (idx = 0; idx < 2; idx++)
1378                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1379                                         return err;
1380                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1381                 }
1382                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1383                         for (idx = 0; idx < 2; idx++)
1384                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1385                                         return err;
1386                         for (idx = 0; idx < 2; idx++)
1387                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1388                                         return err;
1389                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1390                 }
1391                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1392         } else {
1393                 if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1394                         err = snd_ac97_cmute_new(card, "PCM Playback Switch", AC97_PCM, ac97);
1395                 else
1396                         err = snd_ac97_cmix_new(card, "PCM Playback", AC97_PCM, ac97);
1397                 if (err < 0)
1398                         return err;
1399         }
1400
1401         /* build Capture controls */
1402         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1403                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1404                         return err;
1405                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1406                         if ((err = snd_ac97_cmute_new(card, "Capture Switch", AC97_REC_GAIN, ac97)) < 0)
1407                                 return err;
1408                 }
1409                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1410                         return err;
1411                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1412                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1413         }
1414         /* build MIC Capture controls */
1415         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1416                 for (idx = 0; idx < 2; idx++)
1417                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1418                                 return err;
1419                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1420         }
1421
1422         /* build PCM out path & mute control */
1423         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1424                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1425                         return err;
1426         }
1427
1428         /* build Simulated Stereo Enhancement control */
1429         if (ac97->caps & 0x0008) {
1430                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1431                         return err;
1432         }
1433
1434         /* build 3D Stereo Enhancement control */
1435         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1436                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1437                         return err;
1438         }
1439
1440         /* build Loudness control */
1441         if (ac97->caps & 0x0020) {
1442                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1443                         return err;
1444         }
1445
1446         /* build Mono output select control */
1447         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1448                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1449                         return err;
1450         }
1451
1452         /* build Mic select control */
1453         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1454                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1455                         return err;
1456         }
1457
1458         /* build ADC/DAC loopback control */
1459         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1460                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1461                         return err;
1462         }
1463
1464         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1465
1466         /* build 3D controls */
1467         if (ac97->build_ops->build_3d) {
1468                 ac97->build_ops->build_3d(ac97);
1469         } else {
1470                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1471                         unsigned short val;
1472                         val = 0x0707;
1473                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1474                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1475                         val = val == 0x0606;
1476                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1477                                 return err;
1478                         if (val)
1479                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1480                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1481                                 return err;
1482                         if (val)
1483                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1484                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1485                 }
1486         }
1487
1488         /* build S/PDIF controls */
1489         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1490                 if (ac97->build_ops->build_spdif) {
1491                         if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1492                                 return err;
1493                 } else {
1494                         for (idx = 0; idx < 5; idx++)
1495                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1496                                         return err;
1497                         if (ac97->build_ops->build_post_spdif) {
1498                                 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1499                                         return err;
1500                         }
1501                         /* set default PCM S/PDIF params */
1502                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1503                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1504                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1505                 }
1506                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1507         }
1508
1509         /* build chip specific controls */
1510         if (ac97->build_ops->build_specific)
1511                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1512                         return err;
1513
1514         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1515                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1516                 if (! kctl)
1517                         return -ENOMEM;
1518                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1519                         set_inv_eapd(ac97, kctl);
1520                 if ((err = snd_ctl_add(card, kctl)) < 0)
1521                         return err;
1522         }
1523
1524         return 0;
1525 }
1526
1527 static int snd_ac97_modem_build(snd_card_t * card, ac97_t * ac97)
1528 {
1529         /* TODO */
1530         //printk("AC97_GPIO_CFG = %x\n",snd_ac97_read(ac97,AC97_GPIO_CFG));
1531         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1532         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1533         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1534         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1535         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1536         return 0;
1537 }
1538
1539 static int snd_ac97_test_rate(ac97_t *ac97, int reg, int shadow_reg, int rate)
1540 {
1541         unsigned short val;
1542         unsigned int tmp;
1543
1544         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1545         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1546         if (shadow_reg)
1547                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1548         val = snd_ac97_read(ac97, reg);
1549         return val == (tmp & 0xffff);
1550 }
1551
1552 static void snd_ac97_determine_rates(ac97_t *ac97, int reg, int shadow_reg, unsigned int *r_result)
1553 {
1554         unsigned int result = 0;
1555         unsigned short saved;
1556
1557         if (ac97->bus->no_vra) {
1558                 *r_result = SNDRV_PCM_RATE_48000;
1559                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1560                     reg == AC97_PCM_FRONT_DAC_RATE)
1561                         *r_result |= SNDRV_PCM_RATE_96000;
1562                 return;
1563         }
1564
1565         saved = snd_ac97_read(ac97, reg);
1566         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1567                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1568                                      AC97_EA_DRA, 0);
1569         /* test a non-standard rate */
1570         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1571                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1572         /* let's try to obtain standard rates */
1573         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1574                 result |= SNDRV_PCM_RATE_8000;
1575         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1576                 result |= SNDRV_PCM_RATE_11025;
1577         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1578                 result |= SNDRV_PCM_RATE_16000;
1579         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1580                 result |= SNDRV_PCM_RATE_22050;
1581         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1582                 result |= SNDRV_PCM_RATE_32000;
1583         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1584                 result |= SNDRV_PCM_RATE_44100;
1585         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1586                 result |= SNDRV_PCM_RATE_48000;
1587         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1588             reg == AC97_PCM_FRONT_DAC_RATE) {
1589                 /* test standard double rates */
1590                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1591                                      AC97_EA_DRA, AC97_EA_DRA);
1592                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1593                         result |= SNDRV_PCM_RATE_64000;
1594                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1595                         result |= SNDRV_PCM_RATE_88200;
1596                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1597                         result |= SNDRV_PCM_RATE_96000;
1598                 /* some codecs don't support variable double rates */
1599                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1600                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1601                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1602                                      AC97_EA_DRA, 0);
1603         }
1604         /* restore the default value */
1605         snd_ac97_write_cache(ac97, reg, saved);
1606         if (shadow_reg)
1607                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1608         *r_result = result;
1609 }
1610
1611 /* check AC97_SPDIF register to accept which sample rates */
1612 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97)
1613 {
1614         unsigned int result = 0;
1615         int i;
1616         static unsigned short ctl_bits[] = {
1617                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1618         };
1619         static unsigned int rate_bits[] = {
1620                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1621         };
1622
1623         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1624                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1625                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1626                         result |= rate_bits[i];
1627         }
1628         return result;
1629 }
1630
1631 /* look for the codec id table matching with the given id */
1632 static const ac97_codec_id_t *look_for_codec_id(const ac97_codec_id_t *table,
1633                                                 unsigned int id)
1634 {
1635         const ac97_codec_id_t *pid;
1636
1637         for (pid = table; pid->id; pid++)
1638                 if (pid->id == (id & pid->mask))
1639                         return pid;
1640         return NULL;
1641 }
1642
1643 void snd_ac97_get_name(ac97_t *ac97, unsigned int id, char *name, int modem)
1644 {
1645         const ac97_codec_id_t *pid;
1646
1647         sprintf(name, "0x%x %c%c%c", id,
1648                 printable(id >> 24),
1649                 printable(id >> 16),
1650                 printable(id >> 8));
1651         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1652         if (! pid)
1653                 return;
1654
1655         strcpy(name, pid->name);
1656         if (ac97 && pid->patch) {
1657                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1658                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1659                         pid->patch(ac97);
1660         }
1661
1662         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1663         if (pid) {
1664                 strcat(name, " ");
1665                 strcat(name, pid->name);
1666                 if (pid->mask != 0xffffffff)
1667                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1668                 if (ac97 && pid->patch) {
1669                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1670                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1671                                 pid->patch(ac97);
1672                 }
1673         } else
1674                 sprintf(name + strlen(name), " id %x", id & 0xff);
1675 }
1676
1677 /**
1678  * snd_ac97_get_short_name - retrieve codec name
1679  * @ac97: the codec instance
1680  *
1681  * Returns the short identifying name of the codec.
1682  */
1683 const char *snd_ac97_get_short_name(ac97_t *ac97)
1684 {
1685         const ac97_codec_id_t *pid;
1686
1687         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1688                 if (pid->id == (ac97->id & pid->mask))
1689                         return pid->name;
1690         return "unknown codec";
1691 }
1692
1693
1694 /* wait for a while until registers are accessible after RESET
1695  * return 0 if ok, negative not ready
1696  */
1697 static int ac97_reset_wait(ac97_t *ac97, int timeout, int with_modem)
1698 {
1699         unsigned long end_time;
1700         unsigned short val;
1701
1702         end_time = jiffies + timeout;
1703         do {
1704
1705                 /* use preliminary reads to settle the communication */
1706                 snd_ac97_read(ac97, AC97_RESET);
1707                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1708                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1709                 /* modem? */
1710                 if (with_modem) {
1711                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1712                         if (val != 0xffff && (val & 1) != 0)
1713                                 return 0;
1714                 }
1715                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1716                         /* probably only Xbox issue - all registers are read as zero */
1717                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1718                         if (val != 0 && val != 0xffff)
1719                                 return 0;
1720                 } else {
1721                         /* because the PCM or MASTER volume registers can be modified,
1722                          * the REC_GAIN register is used for tests
1723                          */
1724                         /* test if we can write to the record gain volume register */
1725                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1726                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1727                                 return 0;
1728                 }
1729                 set_current_state(TASK_UNINTERRUPTIBLE);
1730                 schedule_timeout(1);
1731         } while (time_after_eq(end_time, jiffies));
1732         return -ENODEV;
1733 }
1734
1735 /**
1736  * snd_ac97_bus - create an AC97 bus component
1737  * @card: the card instance
1738  * @num: the bus number
1739  * @ops: the bus callbacks table
1740  * @private_data: private data pointer for the new instance
1741  * @rbus: the pointer to store the new AC97 bus instance.
1742  *
1743  * Creates an AC97 bus component.  An ac97_bus_t instance is newly
1744  * allocated and initialized.
1745  *
1746  * The ops table must include valid callbacks (at least read and
1747  * write).  The other callbacks, wait and reset, are not mandatory.
1748  *
1749  * The clock is set to 48000.  If another clock is needed, set
1750  * (*rbus)->clock manually.
1751  *
1752  * The AC97 bus instance is registered as a low-level device, so you don't
1753  * have to release it manually.
1754  *
1755  * Returns zero if successful, or a negative error code on failure.
1756  */
1757 int snd_ac97_bus(snd_card_t *card, int num, ac97_bus_ops_t *ops,
1758                  void *private_data, ac97_bus_t **rbus)
1759 {
1760         int err;
1761         ac97_bus_t *bus;
1762         static snd_device_ops_t dev_ops = {
1763                 .dev_free =     snd_ac97_bus_dev_free,
1764         };
1765
1766         snd_assert(card != NULL, return -EINVAL);
1767         snd_assert(rbus != NULL, return -EINVAL);
1768         bus = kcalloc(1, sizeof(*bus), GFP_KERNEL);
1769         if (bus == NULL)
1770                 return -ENOMEM;
1771         bus->card = card;
1772         bus->num = num;
1773         bus->ops = ops;
1774         bus->private_data = private_data;
1775         bus->clock = 48000;
1776         spin_lock_init(&bus->bus_lock);
1777         snd_ac97_bus_proc_init(bus);
1778         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1779                 snd_ac97_bus_free(bus);
1780                 return err;
1781         }
1782         *rbus = bus;
1783         return 0;
1784 }
1785
1786 /* build_ops to do nothing */
1787 static struct snd_ac97_build_ops null_build_ops;
1788
1789 /**
1790  * snd_ac97_mixer - create an Codec97 component
1791  * @bus: the AC97 bus which codec is attached to
1792  * @template: the template of ac97, including index, callbacks and
1793  *         the private data.
1794  * @rac97: the pointer to store the new ac97 instance.
1795  *
1796  * Creates an Codec97 component.  An ac97_t instance is newly
1797  * allocated and initialized from the template.  The codec
1798  * is then initialized by the standard procedure.
1799  *
1800  * The template must include the codec number (num) and address (addr),
1801  * and the private data (private_data).
1802  *
1803  * The ac97 instance is registered as a low-level device, so you don't
1804  * have to release it manually.
1805  *
1806  * Returns zero if successful, or a negative error code on failure.
1807  */
1808 int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97)
1809 {
1810         int err;
1811         ac97_t *ac97;
1812         snd_card_t *card;
1813         char name[64];
1814         unsigned long end_time;
1815         unsigned int reg;
1816         const ac97_codec_id_t *pid;
1817         static snd_device_ops_t ops = {
1818                 .dev_free =     snd_ac97_dev_free,
1819         };
1820
1821         snd_assert(rac97 != NULL, return -EINVAL);
1822         *rac97 = NULL;
1823         snd_assert(bus != NULL && template != NULL, return -EINVAL);
1824         snd_assert(template->num < 4 && bus->codec[template->num] == NULL, return -EINVAL);
1825
1826         snd_assert(bus->shared_type <= AC97_SHARED_TYPES, return -EINVAL);
1827         if (bus->shared_type) {
1828                 /* already shared? */
1829                 down(&shared_codec_mutex);
1830                 ac97 = shared_codec[bus->shared_type-1][template->num];
1831                 if (ac97) {
1832                         if ((ac97_is_audio(ac97) && (template->scaps & AC97_SCAP_SKIP_AUDIO)) ||
1833                             (ac97_is_modem(ac97) && (template->scaps & AC97_SCAP_SKIP_MODEM))) {
1834                                 up(&shared_codec_mutex);
1835                                 return -EACCES; /* skip this */
1836                         }
1837                 }
1838                 up(&shared_codec_mutex);
1839         }
1840
1841         card = bus->card;
1842         ac97 = kcalloc(1, sizeof(*ac97), GFP_KERNEL);
1843         if (ac97 == NULL)
1844                 return -ENOMEM;
1845         ac97->private_data = template->private_data;
1846         ac97->private_free = template->private_free;
1847         ac97->bus = bus;
1848         ac97->pci = template->pci;
1849         ac97->num = template->num;
1850         ac97->addr = template->addr;
1851         ac97->scaps = template->scaps;
1852         ac97->limited_regs = template->limited_regs;
1853         memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
1854         bus->codec[ac97->num] = ac97;
1855         init_MUTEX(&ac97->reg_mutex);
1856         init_MUTEX(&ac97->page_mutex);
1857
1858         if (ac97->pci) {
1859                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
1860                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
1861         }
1862         if (bus->ops->reset) {
1863                 bus->ops->reset(ac97);
1864                 goto __access_ok;
1865         }
1866
1867         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1868         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1869         if (ac97->id && ac97->id != (unsigned int)-1) {
1870                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1871                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
1872                         goto __access_ok;
1873         }
1874
1875         snd_ac97_write(ac97, AC97_RESET, 0);    /* reset to defaults */
1876         if (bus->ops->wait)
1877                 bus->ops->wait(ac97);
1878         else {
1879                 udelay(50);
1880                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
1881                         err = ac97_reset_wait(ac97, HZ/2, 1);
1882                 else {
1883                         err = ac97_reset_wait(ac97, HZ/2, 0);
1884                         if (err < 0)
1885                                 err = ac97_reset_wait(ac97, HZ/2, 1);
1886                 }
1887                 if (err < 0) {
1888                         snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
1889                         /* proceed anyway - it's often non-critical */
1890                 }
1891         }
1892       __access_ok:
1893         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1894         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1895         if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
1896             (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
1897                 snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
1898                 snd_ac97_free(ac97);
1899                 return -EIO;
1900         }
1901         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1902         if (pid)
1903                 ac97->flags |= pid->flags;
1904
1905         /* test for AC'97 */
1906         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
1907                 /* test if we can write to the record gain volume register */
1908                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
1909                 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
1910                         ac97->scaps |= AC97_SCAP_AUDIO;
1911         }
1912         if (ac97->scaps & AC97_SCAP_AUDIO) {
1913                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
1914                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
1915                 if (ac97->ext_id == 0xffff)     /* invalid combination */
1916                         ac97->ext_id = 0;
1917         }
1918
1919         /* test for MC'97 */
1920         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
1921                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1922                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
1923                         ac97->ext_mid = 0;
1924                 if (ac97->ext_mid & 1)
1925                         ac97->scaps |= AC97_SCAP_MODEM;
1926         }
1927
1928         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
1929                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
1930                         snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
1931                 snd_ac97_free(ac97);
1932                 return -EACCES;
1933         }
1934
1935         if (bus->ops->reset) // FIXME: always skipping?
1936                 goto __ready_ok;
1937
1938         /* FIXME: add powerdown control */
1939         if (ac97_is_audio(ac97)) {
1940                 /* nothing should be in powerdown mode */
1941                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
1942                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
1943                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
1944                         udelay(100);
1945                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
1946                 }
1947                 /* nothing should be in powerdown mode */
1948                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
1949                 end_time = jiffies + (HZ / 10);
1950                 do {
1951                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
1952                                 goto __ready_ok;
1953                         set_current_state(TASK_UNINTERRUPTIBLE);
1954                         schedule_timeout(1);
1955                 } while (time_after_eq(end_time, jiffies));
1956                 snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
1957         }
1958
1959         /* FIXME: add powerdown control */
1960         if (ac97_is_modem(ac97)) {
1961                 unsigned char tmp;
1962
1963                 /* nothing should be in powerdown mode */
1964                 /* note: it's important to set the rate at first */
1965                 tmp = AC97_MEA_GPIO;
1966                 if (ac97->ext_mid & AC97_MEI_LINE1) {
1967                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 12000);
1968                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
1969                 }
1970                 if (ac97->ext_mid & AC97_MEI_LINE2) {
1971                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 12000);
1972                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
1973                 }
1974                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
1975                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 12000);
1976                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
1977                 }
1978                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0xff00 & ~(tmp << 8));
1979                 udelay(100);
1980                 /* nothing should be in powerdown mode */
1981                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0xff00 & ~(tmp << 8));
1982                 end_time = jiffies + (HZ / 10);
1983                 do {
1984                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
1985                                 goto __ready_ok;
1986                         set_current_state(TASK_UNINTERRUPTIBLE);
1987                         schedule_timeout(1);
1988                 } while (time_after_eq(end_time, jiffies));
1989                 snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
1990         }
1991
1992       __ready_ok:
1993         if (ac97_is_audio(ac97))
1994                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
1995         else
1996                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
1997         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
1998                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
1999                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2000                 if (! bus->no_vra)
2001                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2002                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2003         }
2004         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2005                 /* Intel controllers require double rate data to be put in
2006                  * slots 7+8, so let's hope the codec supports it. */
2007                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2008                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2009                         ac97->flags |= AC97_DOUBLE_RATE;
2010         }
2011         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2012                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2013                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2014         } else {
2015                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2016                 if (ac97->flags & AC97_DOUBLE_RATE)
2017                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2018                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2019         }
2020         if (ac97->ext_id & AC97_EI_SPDIF) {
2021                 /* codec specific code (patch) should override these values */
2022                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2023         }
2024         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2025                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2026         } else {
2027                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2028         }
2029         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2030                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2031                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2032         }
2033         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2034                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2035                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2036         }
2037         /* additional initializations */
2038         if (bus->ops->init)
2039                 bus->ops->init(ac97);
2040         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2041         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2042         if (! ac97->build_ops)
2043                 ac97->build_ops = &null_build_ops;
2044
2045         if (ac97_is_audio(ac97)) {
2046                 char comp[16];
2047                 if (card->mixername[0] == '\0') {
2048                         strcpy(card->mixername, name);
2049                 } else {
2050                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2051                                 strcat(card->mixername, ",");
2052                                 strcat(card->mixername, name);
2053                         }
2054                 }
2055                 sprintf(comp, "AC97a:%08x", ac97->id);
2056                 if ((err = snd_component_add(card, comp)) < 0) {
2057                         snd_ac97_free(ac97);
2058                         return err;
2059                 }
2060                 if (snd_ac97_mixer_build(ac97) < 0) {
2061                         snd_ac97_free(ac97);
2062                         return -ENOMEM;
2063                 }
2064         }
2065         if (ac97_is_modem(ac97)) {
2066                 char comp[16];
2067                 if (card->mixername[0] == '\0') {
2068                         strcpy(card->mixername, name);
2069                 } else {
2070                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2071                                 strcat(card->mixername, ",");
2072                                 strcat(card->mixername, name);
2073                         }
2074                 }
2075                 sprintf(comp, "AC97m:%08x", ac97->id);
2076                 if ((err = snd_component_add(card, comp)) < 0) {
2077                         snd_ac97_free(ac97);
2078                         return err;
2079                 }
2080                 if (snd_ac97_modem_build(card, ac97) < 0) {
2081                         snd_ac97_free(ac97);
2082                         return -ENOMEM;
2083                 }
2084         }
2085         /* make sure the proper powerdown bits are cleared */
2086         if (ac97->scaps) {
2087                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2088                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2089                         reg &= ~AC97_EA_PRJ;
2090                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2091                         reg &= ~(AC97_EA_PRI | AC97_EA_PRK);
2092                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2093         }
2094         snd_ac97_proc_init(ac97);
2095         if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2096                 snd_ac97_free(ac97);
2097                 return err;
2098         }
2099         *rac97 = ac97;
2100
2101         if (bus->shared_type) {
2102                 down(&shared_codec_mutex);
2103                 shared_codec[bus->shared_type-1][ac97->num] = ac97;
2104                 up(&shared_codec_mutex);
2105         }
2106
2107         return 0;
2108 }
2109
2110
2111 /*
2112  * Power down the chip.
2113  *
2114  * MASTER and HEADPHONE registers are muted but the register cache values
2115  * are not changed, so that the values can be restored in snd_ac97_resume().
2116  */
2117 static void snd_ac97_powerdown(ac97_t *ac97)
2118 {
2119         unsigned short power;
2120
2121         if (ac97_is_audio(ac97)) {
2122                 /* some codecs have stereo mute bits */
2123                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2124                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2125         }
2126
2127         power = ac97->regs[AC97_POWERDOWN] | 0x8000;    /* EAPD */
2128         power |= 0x4000;        /* Headphone amplifier powerdown */
2129         power |= 0x0300;        /* ADC & DAC powerdown */
2130         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2131         udelay(100);
2132         power |= 0x0400;        /* Analog Mixer powerdown (Vref on) */
2133         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2134         udelay(100);
2135 #if 0
2136         /* FIXME: this causes click noises on some boards at resume */
2137         power |= 0x3800;        /* AC-link powerdown, internal Clk disable */
2138         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2139 #endif
2140 }
2141
2142
2143 #ifdef CONFIG_PM
2144 /**
2145  * snd_ac97_suspend - General suspend function for AC97 codec
2146  * @ac97: the ac97 instance
2147  *
2148  * Suspends the codec, power down the chip.
2149  */
2150 void snd_ac97_suspend(ac97_t *ac97)
2151 {
2152         if (ac97->build_ops->suspend)
2153                 ac97->build_ops->suspend(ac97);
2154         snd_ac97_powerdown(ac97);
2155 }
2156
2157 /*
2158  * restore ac97 status
2159  */
2160 void snd_ac97_restore_status(ac97_t *ac97)
2161 {
2162         int i;
2163
2164         for (i = 2; i < 0x7c ; i += 2) {
2165                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2166                         continue;
2167                 /* restore only accessible registers
2168                  * some chip (e.g. nm256) may hang up when unsupported registers
2169                  * are accessed..!
2170                  */
2171                 if (test_bit(i, ac97->reg_accessed)) {
2172                         snd_ac97_write(ac97, i, ac97->regs[i]);
2173                         snd_ac97_read(ac97, i);
2174                 }
2175         }
2176 }
2177
2178 /*
2179  * restore IEC958 status
2180  */
2181 void snd_ac97_restore_iec958(ac97_t *ac97)
2182 {
2183         if (ac97->ext_id & AC97_EI_SPDIF) {
2184                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2185                         /* reset spdif status */
2186                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2187                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2188                         if (ac97->flags & AC97_CS_SPDIF)
2189                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2190                         else
2191                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2192                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2193                 }
2194         }
2195 }
2196
2197 /**
2198  * snd_ac97_resume - General resume function for AC97 codec
2199  * @ac97: the ac97 instance
2200  *
2201  * Do the standard resume procedure, power up and restoring the
2202  * old register values.
2203  */
2204 void snd_ac97_resume(ac97_t *ac97)
2205 {
2206         int i;
2207
2208         if (ac97->bus->ops->reset) {
2209                 ac97->bus->ops->reset(ac97);
2210                 goto  __reset_ready;
2211         }
2212
2213         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2214         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2215                 snd_ac97_write(ac97, AC97_RESET, 0);
2216                 udelay(100);
2217                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2218         }
2219         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2220
2221         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2222         if (ac97_is_audio(ac97)) {
2223                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2224                 for (i = HZ/10; i >= 0; i--) {
2225                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2226                                 break;
2227                         set_current_state(TASK_UNINTERRUPTIBLE);
2228                         schedule_timeout(1);
2229                 }
2230                 /* FIXME: extra delay */
2231                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000);
2232                 if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000) {
2233                         set_current_state(TASK_UNINTERRUPTIBLE);
2234                         schedule_timeout(HZ/4);
2235                 }
2236         } else {
2237                 for (i = HZ/10; i >= 0; i--) {
2238                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2239                         if (val != 0xffff && (val & 1) != 0)
2240                                 break;
2241                         set_current_state(TASK_UNINTERRUPTIBLE);
2242                         schedule_timeout(1);
2243                 }
2244         }
2245 __reset_ready:
2246
2247         if (ac97->bus->ops->init)
2248                 ac97->bus->ops->init(ac97);
2249
2250         if (ac97->build_ops->resume)
2251                 ac97->build_ops->resume(ac97);
2252         else {
2253                 snd_ac97_restore_status(ac97);
2254                 snd_ac97_restore_iec958(ac97);
2255         }
2256 }
2257 #endif
2258
2259
2260 /*
2261  * Hardware tuning
2262  */
2263 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2264 {
2265         if (suffix)
2266                 sprintf(dst, "%s %s", src, suffix);
2267         else
2268                 strcpy(dst, src);
2269 }
2270
2271 /* remove the control with the given name and optional suffix */
2272 int snd_ac97_remove_ctl(ac97_t *ac97, const char *name, const char *suffix)
2273 {
2274         snd_ctl_elem_id_t id;
2275         memset(&id, 0, sizeof(id));
2276         set_ctl_name(id.name, name, suffix);
2277         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2278         return snd_ctl_remove_id(ac97->bus->card, &id);
2279 }
2280
2281 static snd_kcontrol_t *ctl_find(ac97_t *ac97, const char *name, const char *suffix)
2282 {
2283         snd_ctl_elem_id_t sid;
2284         memset(&sid, 0, sizeof(sid));
2285         set_ctl_name(sid.name, name, suffix);
2286         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2287         return snd_ctl_find_id(ac97->bus->card, &sid);
2288 }
2289
2290 /* rename the control with the given name and optional suffix */
2291 int snd_ac97_rename_ctl(ac97_t *ac97, const char *src, const char *dst, const char *suffix)
2292 {
2293         snd_kcontrol_t *kctl = ctl_find(ac97, src, suffix);
2294         if (kctl) {
2295                 set_ctl_name(kctl->id.name, dst, suffix);
2296                 return 0;
2297         }
2298         return -ENOENT;
2299 }
2300
2301 /* rename both Volume and Switch controls - don't check the return value */
2302 void snd_ac97_rename_vol_ctl(ac97_t *ac97, const char *src, const char *dst)
2303 {
2304         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2305         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2306 }
2307
2308 /* swap controls */
2309 int snd_ac97_swap_ctl(ac97_t *ac97, const char *s1, const char *s2, const char *suffix)
2310 {
2311         snd_kcontrol_t *kctl1, *kctl2;
2312         kctl1 = ctl_find(ac97, s1, suffix);
2313         kctl2 = ctl_find(ac97, s2, suffix);
2314         if (kctl1 && kctl2) {
2315                 set_ctl_name(kctl1->id.name, s2, suffix);
2316                 set_ctl_name(kctl2->id.name, s1, suffix);
2317                 return 0;
2318         }
2319         return -ENOENT;
2320 }
2321
2322 #if 1
2323 /* bind hp and master controls instead of using only hp control */
2324 static int bind_hp_volsw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2325 {
2326         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2327         if (err > 0) {
2328                 unsigned long priv_saved = kcontrol->private_value;
2329                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2330                 snd_ac97_put_volsw(kcontrol, ucontrol);
2331                 kcontrol->private_value = priv_saved;
2332         }
2333         return err;
2334 }
2335
2336 /* ac97 tune: bind Master and Headphone controls */
2337 static int tune_hp_only(ac97_t *ac97)
2338 {
2339         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2340         snd_kcontrol_t *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2341         if (! msw || ! mvol)
2342                 return -ENOENT;
2343         msw->put = bind_hp_volsw_put;
2344         mvol->put = bind_hp_volsw_put;
2345         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2346         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2347         return 0;
2348 }
2349
2350 #else
2351 /* ac97 tune: use Headphone control as master */
2352 static int tune_hp_only(ac97_t *ac97)
2353 {
2354         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2355                 return -ENOENT;
2356         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2357         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2358         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2359         return 0;
2360 }
2361 #endif
2362
2363 /* ac97 tune: swap Headphone and Master controls */
2364 static int tune_swap_hp(ac97_t *ac97)
2365 {
2366         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2367                 return -ENOENT;
2368         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2369         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2370         return 0;
2371 }
2372
2373 /* ac97 tune: swap Surround and Master controls */
2374 static int tune_swap_surround(ac97_t *ac97)
2375 {
2376         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2377             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2378                 return -ENOENT;
2379         return 0;
2380 }
2381
2382 /* ac97 tune: set up mic sharing for AD codecs */
2383 static int tune_ad_sharing(ac97_t *ac97)
2384 {
2385         unsigned short scfg;
2386         if ((ac97->id & 0xffffff00) != 0x41445300) {
2387                 snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2388                 return -EINVAL;
2389         }
2390         /* Turn on OMS bit to route microphone to back panel */
2391         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2392         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2393         return 0;
2394 }
2395
2396 static const snd_kcontrol_new_t snd_ac97_alc_jack_detect =
2397 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2398
2399 /* ac97 tune: set up ALC jack-select */
2400 static int tune_alc_jack(ac97_t *ac97)
2401 {
2402         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2403                 snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2404                 return -EINVAL;
2405         }
2406         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2407         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2408         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2409 }
2410
2411 /* ac97 tune: inversed EAPD bit */
2412 static int tune_inv_eapd(ac97_t *ac97)
2413 {
2414         snd_kcontrol_t *kctl = ctl_find(ac97, "External Amplifier", NULL);
2415         if (! kctl)
2416                 return -ENOENT;
2417         set_inv_eapd(ac97, kctl);
2418         return 0;
2419 }
2420
2421 static int master_mute_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2422 {
2423         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2424         if (err > 0) {
2425                 ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
2426                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2427                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2428                 unsigned short mask;
2429                 if (shift != rshift)
2430                         mask = 0x8080;
2431                 else
2432                         mask = 0x8000;
2433                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2434                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2435                                      0x8000 : 0);
2436         }
2437         return err;
2438 }
2439
2440 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2441 static int tune_mute_led(ac97_t *ac97)
2442 {
2443         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2444         if (! msw)
2445                 return -ENOENT;
2446         msw->put = master_mute_sw_put;
2447         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2448         snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2449         return 0;
2450 }
2451
2452 struct quirk_table {
2453         const char *name;
2454         int (*func)(ac97_t *);
2455 };
2456
2457 static struct quirk_table applicable_quirks[] = {
2458         { "none", NULL },
2459         { "hp_only", tune_hp_only },
2460         { "swap_hp", tune_swap_hp },
2461         { "swap_surround", tune_swap_surround },
2462         { "ad_sharing", tune_ad_sharing },
2463         { "alc_jack", tune_alc_jack },
2464         { "inv_eapd", tune_inv_eapd },
2465         { "mute_led", tune_mute_led },
2466 };
2467
2468 /* apply the quirk with the given type */
2469 static int apply_quirk(ac97_t *ac97, int type)
2470 {
2471         if (type <= 0)
2472                 return 0;
2473         else if (type >= ARRAY_SIZE(applicable_quirks))
2474                 return -EINVAL;
2475         if (applicable_quirks[type].func)
2476                 return applicable_quirks[type].func(ac97);
2477         return 0;
2478 }
2479
2480 /* apply the quirk with the given name */
2481 static int apply_quirk_str(ac97_t *ac97, const char *typestr)
2482 {
2483         int i;
2484         struct quirk_table *q;
2485
2486         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2487                 q = &applicable_quirks[i];
2488                 if (q->name && ! strcmp(typestr, q->name))
2489                         return apply_quirk(ac97, i);
2490         }
2491         /* for compatibility, accept the numbers, too */
2492         if (*typestr >= '0' && *typestr <= '9')
2493                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2494         return -EINVAL;
2495 }
2496
2497 /**
2498  * snd_ac97_tune_hardware - tune up the hardware
2499  * @ac97: the ac97 instance
2500  * @quirk: quirk list
2501  * @override: explicit quirk value (overrides the list if non-NULL)
2502  *
2503  * Do some workaround for each pci device, such as renaming of the
2504  * headphone (true line-out) control as "Master".
2505  * The quirk-list must be terminated with a zero-filled entry.
2506  *
2507  * Returns zero if successful, or a negative error code on failure.
2508  */
2509
2510 int snd_ac97_tune_hardware(ac97_t *ac97, struct ac97_quirk *quirk, const char *override)
2511 {
2512         int result;
2513
2514         snd_assert(quirk, return -EINVAL);
2515
2516         /* quirk overriden? */
2517         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2518                 result = apply_quirk_str(ac97, override);
2519                 if (result < 0)
2520                         snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2521                 return result;
2522         }
2523
2524         for (; quirk->vendor; quirk++) {
2525                 if (quirk->vendor != ac97->subsystem_vendor)
2526                         continue;
2527                 if ((! quirk->mask && quirk->device == ac97->subsystem_device) ||
2528                     quirk->device == (quirk->mask & ac97->subsystem_device)) {
2529                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2530                                 continue;
2531                         snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2532                         result = apply_quirk(ac97, quirk->type);
2533                         if (result < 0)
2534                                 snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2535                         return result;
2536                 }
2537         }
2538         return 0;
2539 }
2540
2541
2542 /*
2543  *  Exported symbols
2544  */
2545
2546 EXPORT_SYMBOL(snd_ac97_write);
2547 EXPORT_SYMBOL(snd_ac97_read);
2548 EXPORT_SYMBOL(snd_ac97_write_cache);
2549 EXPORT_SYMBOL(snd_ac97_update);
2550 EXPORT_SYMBOL(snd_ac97_update_bits);
2551 EXPORT_SYMBOL(snd_ac97_get_short_name);
2552 EXPORT_SYMBOL(snd_ac97_bus);
2553 EXPORT_SYMBOL(snd_ac97_mixer);
2554 EXPORT_SYMBOL(snd_ac97_pcm_assign);
2555 EXPORT_SYMBOL(snd_ac97_pcm_open);
2556 EXPORT_SYMBOL(snd_ac97_pcm_close);
2557 EXPORT_SYMBOL(snd_ac97_pcm_double_rate_rules);
2558 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2559 EXPORT_SYMBOL(snd_ac97_set_rate);
2560 #ifdef CONFIG_PM
2561 EXPORT_SYMBOL(snd_ac97_resume);
2562 EXPORT_SYMBOL(snd_ac97_suspend);
2563 #endif
2564
2565 /*
2566  *  INIT part
2567  */
2568
2569 static int __init alsa_ac97_init(void)
2570 {
2571         return 0;
2572 }
2573
2574 static void __exit alsa_ac97_exit(void)
2575 {
2576 }
2577
2578 module_init(alsa_ac97_init)
2579 module_exit(alsa_ac97_exit)