git.oblomov.eu Git - linux-2.6/blob - sound/pci/ac97/ac97_codec.c

   1 /*
   2  *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
   3  *  Universal interface for Audio Codec '97
   4  *
   5  *  For more details look to AC '97 component specification revision 2.2
   6  *  by Intel Corporation (http://developer.intel.com).
   7  *
   8  *
   9  *   This program is free software; you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License as published by
  11  *   the Free Software Foundation; either version 2 of the License, or
  12  *   (at your option) any later version.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program; if not, write to the Free Software
  21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  22  *
  23  */
  24
  25 #include <sound/driver.h>
  26 #include <linux/delay.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/pci.h>
  30 #include <linux/moduleparam.h>
  31 #include <sound/core.h>
  32 #include <sound/pcm.h>
  33 #include <sound/ac97_codec.h>
  34 #include <sound/asoundef.h>
  35 #include <sound/initval.h>
  36 #include "ac97_local.h"
  37 #include "ac97_id.h"
  38 #include "ac97_patch.h"
  39
  40 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
  41 MODULE_DESCRIPTION("Universal interface for Audio Codec '97");
  42 MODULE_LICENSE("GPL");
  43
  44 static int enable_loopback;
  45
  46 module_param(enable_loopback, bool, 0444);
  47 MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
  48
  49 /*
  50
  51  */
  52
  53 typedef struct {
  54         unsigned int id;
  55         unsigned int mask;
  56         const char *name;
  57         int (*patch)(ac97_t *ac97);
  58         int (*mpatch)(ac97_t *ac97);
  59         unsigned int flags;
  60 } ac97_codec_id_t;
  61
  62 static const ac97_codec_id_t snd_ac97_codec_id_vendors[] = {
  63 { 0x414b4d00, 0xffffff00, "Asahi Kasei",        NULL,   NULL },
  64 { 0x41445300, 0xffffff00, "Analog Devices",     NULL,   NULL },
  65 { 0x414c4300, 0xffffff00, "Realtek",            NULL,   NULL },
  66 { 0x414c4700, 0xffffff00, "Realtek",            NULL,   NULL },
  67 { 0x434d4900, 0xffffff00, "C-Media Electronics", NULL,  NULL },
  68 { 0x43525900, 0xffffff00, "Cirrus Logic",       NULL,   NULL },
  69 { 0x43585400, 0xffffff00, "Conexant",           NULL,   NULL },
  70 { 0x44543000, 0xffffff00, "Diamond Technology", NULL,   NULL },
  71 { 0x454d4300, 0xffffff00, "eMicro",             NULL,   NULL },
  72 { 0x45838300, 0xffffff00, "ESS Technology",     NULL,   NULL },
  73 { 0x48525300, 0xffffff00, "Intersil",           NULL,   NULL },
  74 { 0x49434500, 0xffffff00, "ICEnsemble",         NULL,   NULL },
  75 { 0x49544500, 0xffffff00, "ITE Tech.Inc",       NULL,   NULL },
  76 { 0x4e534300, 0xffffff00, "National Semiconductor", NULL, NULL },
  77 { 0x50534300, 0xffffff00, "Philips",            NULL,   NULL },
  78 { 0x53494c00, 0xffffff00, "Silicon Laboratory", NULL,   NULL },
  79 { 0x54524100, 0xffffff00, "TriTech",            NULL,   NULL },
  80 { 0x54584e00, 0xffffff00, "Texas Instruments",  NULL,   NULL },
  81 { 0x56494100, 0xffffff00, "VIA Technologies",   NULL,   NULL },
  82 { 0x57454300, 0xffffff00, "Winbond",            NULL,   NULL },
  83 { 0x574d4c00, 0xffffff00, "Wolfson",            NULL,   NULL },
  84 { 0x594d4800, 0xffffff00, "Yamaha",             NULL,   NULL },
  85 { 0x83847600, 0xffffff00, "SigmaTel",           NULL,   NULL },
  86 { 0,          0,          NULL,                 NULL,   NULL }
  87 };
  88
  89 static const ac97_codec_id_t snd_ac97_codec_ids[] = {
  90 { 0x414b4d00, 0xffffffff, "AK4540",             NULL,           NULL },
  91 { 0x414b4d01, 0xffffffff, "AK4542",             NULL,           NULL },
  92 { 0x414b4d02, 0xffffffff, "AK4543",             NULL,           NULL },
  93 { 0x414b4d06, 0xffffffff, "AK4544A",            NULL,           NULL },
  94 { 0x414b4d07, 0xffffffff, "AK4545",             NULL,           NULL },
  95 { 0x41445303, 0xffffffff, "AD1819",             patch_ad1819,   NULL },
  96 { 0x41445340, 0xffffffff, "AD1881",             patch_ad1881,   NULL },
  97 { 0x41445348, 0xffffffff, "AD1881A",            patch_ad1881,   NULL },
  98 { 0x41445360, 0xffffffff, "AD1885",             patch_ad1885,   NULL },
  99 { 0x41445361, 0xffffffff, "AD1886",             patch_ad1886,   NULL },
 100 { 0x41445362, 0xffffffff, "AD1887",             patch_ad1881,   NULL },
 101 { 0x41445363, 0xffffffff, "AD1886A",            patch_ad1881,   NULL },
 102 { 0x41445368, 0xffffffff, "AD1888",             patch_ad1888,   NULL },
 103 { 0x41445370, 0xffffffff, "AD1980",             patch_ad1980,   NULL },
 104 { 0x41445372, 0xffffffff, "AD1981A",            patch_ad1981a,  NULL },
 105 { 0x41445374, 0xffffffff, "AD1981B",            patch_ad1981b,  NULL },
 106 { 0x41445375, 0xffffffff, "AD1985",             patch_ad1985,   NULL },
 107 { 0x41445378, 0xffffffff, "AD1986",             patch_ad1985,   NULL },
 108 { 0x414c4300, 0xffffff00, "ALC100,100P",        NULL,           NULL },
 109 { 0x414c4710, 0xfffffff0, "ALC200,200P",        NULL,           NULL },
 110 { 0x414c4721, 0xffffffff, "ALC650D",            NULL,   NULL }, /* already patched */
 111 { 0x414c4722, 0xffffffff, "ALC650E",            NULL,   NULL }, /* already patched */
 112 { 0x414c4723, 0xffffffff, "ALC650F",            NULL,   NULL }, /* already patched */
 113 { 0x414c4720, 0xfffffff0, "ALC650",             patch_alc650,   NULL },
 114 { 0x414c4760, 0xfffffff0, "ALC655",             patch_alc655,   NULL },
 115 { 0x414c4780, 0xfffffff0, "ALC658",             patch_alc655,   NULL },
 116 { 0x414c4790, 0xfffffff0, "ALC850",             patch_alc850,   NULL },
 117 { 0x414c4730, 0xffffffff, "ALC101",             NULL,           NULL },
 118 { 0x414c4740, 0xfffffff0, "ALC202",             NULL,           NULL },
 119 { 0x414c4750, 0xfffffff0, "ALC250",             NULL,           NULL },
 120 { 0x414c4770, 0xfffffff0, "ALC203",             NULL,           NULL },
 121 { 0x434d4941, 0xffffffff, "CMI9738",            patch_cm9738,   NULL },
 122 { 0x434d4961, 0xffffffff, "CMI9739",            patch_cm9739,   NULL },
 123 { 0x434d4969, 0xffffffff, "CMI9780",            patch_cm9780,   NULL },
 124 { 0x434d4978, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 125 { 0x434d4982, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 126 { 0x434d4983, 0xffffffff, "CMI9761",            patch_cm9761,   NULL },
 127 { 0x43525900, 0xfffffff8, "CS4297",             NULL,           NULL },
 128 { 0x43525910, 0xfffffff8, "CS4297A",            patch_cirrus_spdif,     NULL },
 129 { 0x43525920, 0xfffffff8, "CS4298",             patch_cirrus_spdif,             NULL },
 130 { 0x43525928, 0xfffffff8, "CS4294",             NULL,           NULL },
 131 { 0x43525930, 0xfffffff8, "CS4299",             patch_cirrus_cs4299,    NULL },
 132 { 0x43525948, 0xfffffff8, "CS4201",             NULL,           NULL },
 133 { 0x43525958, 0xfffffff8, "CS4205",             patch_cirrus_spdif,     NULL },
 134 { 0x43525960, 0xfffffff8, "CS4291",             NULL,           NULL },
 135 { 0x43525970, 0xfffffff8, "CS4202",             NULL,           NULL },
 136 { 0x43585421, 0xffffffff, "HSD11246",           NULL,           NULL }, // SmartMC II
 137 { 0x43585428, 0xfffffff8, "Cx20468",            patch_conexant, NULL }, // SmartAMC fixme: the mask might be different
 138 { 0x44543031, 0xfffffff0, "DT0398",             NULL,           NULL },
 139 { 0x454d4328, 0xffffffff, "28028",              NULL,           NULL },  // same as TR28028?
 140 { 0x45838308, 0xffffffff, "ESS1988",            NULL,           NULL },
 141 { 0x48525300, 0xffffff00, "HMP9701",            NULL,           NULL },
 142 { 0x49434501, 0xffffffff, "ICE1230",            NULL,           NULL },
 143 { 0x49434511, 0xffffffff, "ICE1232",            NULL,           NULL }, // alias VIA VT1611A?
 144 { 0x49434514, 0xffffffff, "ICE1232A",           NULL,           NULL },
 145 { 0x49434551, 0xffffffff, "VT1616",             patch_vt1616,   NULL },
 146 { 0x49434552, 0xffffffff, "VT1616i",            patch_vt1616,   NULL }, // VT1616 compatible (chipset integrated)
 147 { 0x49544520, 0xffffffff, "IT2226E",            NULL,           NULL },
 148 { 0x49544561, 0xffffffff, "IT2646E",            patch_it2646,   NULL },
 149 { 0x4e534300, 0xffffffff, "LM4540,43,45,46,48", NULL,           NULL }, // only guess --jk
 150 { 0x4e534331, 0xffffffff, "LM4549",             NULL,           NULL },
 151 { 0x4e534350, 0xffffffff, "LM4550",             NULL,           NULL },
 152 { 0x50534304, 0xffffffff, "UCB1400",            NULL,           NULL },
 153 { 0x53494c20, 0xffffffe0, "Si3036,8",           mpatch_si3036,  mpatch_si3036, AC97_MODEM_PATCH },
 154 { 0x54524102, 0xffffffff, "TR28022",            NULL,           NULL },
 155 { 0x54524106, 0xffffffff, "TR28026",            NULL,           NULL },
 156 { 0x54524108, 0xffffffff, "TR28028",            patch_tritech_tr28028,  NULL }, // added by xin jin [07/09/99]
 157 { 0x54524123, 0xffffffff, "TR28602",            NULL,           NULL }, // only guess --jk [TR28023 = eMicro EM28023 (new CT1297)]
 158 { 0x54584e20, 0xffffffff, "TLC320AD9xC",        NULL,           NULL },
 159 { 0x56494161, 0xffffffff, "VIA1612A",           NULL,           NULL }, // modified ICE1232 with S/PDIF
 160 { 0x56494170, 0xffffffff, "VIA1617A",           patch_vt1617a,  NULL }, // modified VT1616 with S/PDIF
 161 { 0x57454301, 0xffffffff, "W83971D",            NULL,           NULL },
 162 { 0x574d4c00, 0xffffffff, "WM9701A",            NULL,           NULL },
 163 { 0x574d4C03, 0xffffffff, "WM9703,WM9707,WM9708,WM9717", patch_wolfson03, NULL},
 164 { 0x574d4C04, 0xffffffff, "WM9704M,WM9704Q",    patch_wolfson04, NULL},
 165 { 0x574d4C05, 0xffffffff, "WM9705,WM9710",      patch_wolfson05, NULL},
 166 { 0x574d4C09, 0xffffffff, "WM9709",             NULL,           NULL},
 167 { 0x574d4C12, 0xffffffff, "WM9711,WM9712",      patch_wolfson11, NULL},
 168 { 0x574d4c13, 0xffffffff, "WM9713,WM9714",      patch_wolfson13, NULL, AC97_DEFAULT_POWER_OFF},
 169 { 0x594d4800, 0xffffffff, "YMF743",             NULL,           NULL },
 170 { 0x594d4802, 0xffffffff, "YMF752",             NULL,           NULL },
 171 { 0x594d4803, 0xffffffff, "YMF753",             patch_yamaha_ymf753,    NULL },
 172 { 0x83847600, 0xffffffff, "STAC9700,83,84",     patch_sigmatel_stac9700,        NULL },
 173 { 0x83847604, 0xffffffff, "STAC9701,3,4,5",     NULL,           NULL },
 174 { 0x83847605, 0xffffffff, "STAC9704",           NULL,           NULL },
 175 { 0x83847608, 0xffffffff, "STAC9708,11",        patch_sigmatel_stac9708,        NULL },
 176 { 0x83847609, 0xffffffff, "STAC9721,23",        patch_sigmatel_stac9721,        NULL },
 177 { 0x83847644, 0xffffffff, "STAC9744",           patch_sigmatel_stac9744,        NULL },
 178 { 0x83847650, 0xffffffff, "STAC9750,51",        NULL,           NULL }, // patch?
 179 { 0x83847652, 0xffffffff, "STAC9752,53",        NULL,           NULL }, // patch?
 180 { 0x83847656, 0xffffffff, "STAC9756,57",        patch_sigmatel_stac9756,        NULL },
 181 { 0x83847658, 0xffffffff, "STAC9758,59",        patch_sigmatel_stac9758,        NULL },
 182 { 0x83847666, 0xffffffff, "STAC9766,67",        NULL,           NULL }, // patch?
 183 { 0,          0,          NULL,                 NULL,           NULL }
 184 };
 185
 186 const char *snd_ac97_stereo_enhancements[] =
 187 {
 188   /*   0 */ "No 3D Stereo Enhancement",
 189   /*   1 */ "Analog Devices Phat Stereo",
 190   /*   2 */ "Creative Stereo Enhancement",
 191   /*   3 */ "National Semi 3D Stereo Enhancement",
 192   /*   4 */ "YAMAHA Ymersion",
 193   /*   5 */ "BBE 3D Stereo Enhancement",
 194   /*   6 */ "Crystal Semi 3D Stereo Enhancement",
 195   /*   7 */ "Qsound QXpander",
 196   /*   8 */ "Spatializer 3D Stereo Enhancement",
 197   /*   9 */ "SRS 3D Stereo Enhancement",
 198   /*  10 */ "Platform Tech 3D Stereo Enhancement",
 199   /*  11 */ "AKM 3D Audio",
 200   /*  12 */ "Aureal Stereo Enhancement",
 201   /*  13 */ "Aztech 3D Enhancement",
 202   /*  14 */ "Binaura 3D Audio Enhancement",
 203   /*  15 */ "ESS Technology Stereo Enhancement",
 204   /*  16 */ "Harman International VMAx",
 205   /*  17 */ "Nvidea/IC Ensemble/KS Waves 3D Stereo Enhancement",
 206   /*  18 */ "Philips Incredible Sound",
 207   /*  19 */ "Texas Instruments 3D Stereo Enhancement",
 208   /*  20 */ "VLSI Technology 3D Stereo Enhancement",
 209   /*  21 */ "TriTech 3D Stereo Enhancement",
 210   /*  22 */ "Realtek 3D Stereo Enhancement",
 211   /*  23 */ "Samsung 3D Stereo Enhancement",
 212   /*  24 */ "Wolfson Microelectronics 3D Enhancement",
 213   /*  25 */ "Delta Integration 3D Enhancement",
 214   /*  26 */ "SigmaTel 3D Enhancement",
 215   /*  27 */ "IC Ensemble/KS Waves",
 216   /*  28 */ "Rockwell 3D Stereo Enhancement",
 217   /*  29 */ "Reserved 29",
 218   /*  30 */ "Reserved 30",
 219   /*  31 */ "Reserved 31"
 220 };
 221
 222 /*
 223  * Shared AC97 controllers (ICH, ATIIXP...)
 224  */
 225 static DECLARE_MUTEX(shared_codec_mutex);
 226 static ac97_t *shared_codec[AC97_SHARED_TYPES][4];
 227
 228
 229 /*
 230  *  I/O routines
 231  */
 232
 233 static int snd_ac97_valid_reg(ac97_t *ac97, unsigned short reg)
 234 {
 235         if (ac97->limited_regs && ! test_bit(reg, ac97->reg_accessed))
 236                 return 0;
 237
 238         /* filter some registers for buggy codecs */
 239         switch (ac97->id) {
 240         case AC97_ID_AK4540:
 241         case AC97_ID_AK4542:
 242                 if (reg <= 0x1c || reg == 0x20 || reg == 0x26 || reg >= 0x7c)
 243                         return 1;
 244                 return 0;
 245         case AC97_ID_AD1819:    /* AD1819 */
 246         case AC97_ID_AD1881:    /* AD1881 */
 247         case AC97_ID_AD1881A:   /* AD1881A */
 248                 if (reg >= 0x3a && reg <= 0x6e) /* 0x59 */
 249                         return 0;
 250                 return 1;
 251         case AC97_ID_AD1885:    /* AD1885 */
 252         case AC97_ID_AD1886:    /* AD1886 */
 253         case AC97_ID_AD1886A:   /* AD1886A - !!verify!! --jk */
 254         case AC97_ID_AD1887:    /* AD1887 - !!verify!! --jk */
 255                 if (reg == 0x5a)
 256                         return 1;
 257                 if (reg >= 0x3c && reg <= 0x6e) /* 0x59 */
 258                         return 0;
 259                 return 1;
 260         case AC97_ID_STAC9700:
 261         case AC97_ID_STAC9704:
 262         case AC97_ID_STAC9705:
 263         case AC97_ID_STAC9708:
 264         case AC97_ID_STAC9721:
 265         case AC97_ID_STAC9744:
 266         case AC97_ID_STAC9756:
 267                 if (reg <= 0x3a || reg >= 0x5a)
 268                         return 1;
 269                 return 0;
 270         }
 271         return 1;
 272 }
 273
 274 /**
 275  * snd_ac97_write - write a value on the given register
 276  * @ac97: the ac97 instance
 277  * @reg: the register to change
 278  * @value: the value to set
 279  *
 280  * Writes a value on the given register.  This will invoke the write
 281  * callback directly after the register check.
 282  * This function doesn't change the register cache unlike
 283  * #snd_ca97_write_cache(), so use this only when you don't want to
 284  * reflect the change to the suspend/resume state.
 285  */
 286 void snd_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short value)
 287 {
 288         if (!snd_ac97_valid_reg(ac97, reg))
 289                 return;
 290         if ((ac97->id & 0xffffff00) == AC97_ID_ALC100) {
 291                 /* Fix H/W bug of ALC100/100P */
 292                 if (reg == AC97_MASTER || reg == AC97_HEADPHONE)
 293                         ac97->bus->ops->write(ac97, AC97_RESET, 0);     /* reset audio codec */
 294         }
 295         ac97->bus->ops->write(ac97, reg, value);
 296 }
 297
 298 /**
 299  * snd_ac97_read - read a value from the given register
 300  *
 301  * @ac97: the ac97 instance
 302  * @reg: the register to read
 303  *
 304  * Reads a value from the given register.  This will invoke the read
 305  * callback directly after the register check.
 306  *
 307  * Returns the read value.
 308  */
 309 unsigned short snd_ac97_read(ac97_t *ac97, unsigned short reg)
 310 {
 311         if (!snd_ac97_valid_reg(ac97, reg))
 312                 return 0;
 313         return ac97->bus->ops->read(ac97, reg);
 314 }
 315
 316 /* read a register - return the cached value if already read */
 317 static inline unsigned short snd_ac97_read_cache(ac97_t *ac97, unsigned short reg)
 318 {
 319         if (! test_bit(reg, ac97->reg_accessed)) {
 320                 ac97->regs[reg] = ac97->bus->ops->read(ac97, reg);
 321                 // set_bit(reg, ac97->reg_accessed);
 322         }
 323         return ac97->regs[reg];
 324 }
 325
 326 /**
 327  * snd_ac97_write_cache - write a value on the given register and update the cache
 328  * @ac97: the ac97 instance
 329  * @reg: the register to change
 330  * @value: the value to set
 331  *
 332  * Writes a value on the given register and updates the register
 333  * cache.  The cached values are used for the cached-read and the
 334  * suspend/resume.
 335  */
 336 void snd_ac97_write_cache(ac97_t *ac97, unsigned short reg, unsigned short value)
 337 {
 338         if (!snd_ac97_valid_reg(ac97, reg))
 339                 return;
 340         down(&ac97->reg_mutex);
 341         ac97->regs[reg] = value;
 342         ac97->bus->ops->write(ac97, reg, value);
 343         set_bit(reg, ac97->reg_accessed);
 344         up(&ac97->reg_mutex);
 345 }
 346
 347 /**
 348  * snd_ac97_update - update the value on the given register
 349  * @ac97: the ac97 instance
 350  * @reg: the register to change
 351  * @value: the value to set
 352  *
 353  * Compares the value with the register cache and updates the value
 354  * only when the value is changed.
 355  *
 356  * Returns 1 if the value is changed, 0 if no change, or a negative
 357  * code on failure.
 358  */
 359 int snd_ac97_update(ac97_t *ac97, unsigned short reg, unsigned short value)
 360 {
 361         int change;
 362
 363         if (!snd_ac97_valid_reg(ac97, reg))
 364                 return -EINVAL;
 365         down(&ac97->reg_mutex);
 366         change = ac97->regs[reg] != value;
 367         if (change) {
 368                 ac97->regs[reg] = value;
 369                 ac97->bus->ops->write(ac97, reg, value);
 370         }
 371         set_bit(reg, ac97->reg_accessed);
 372         up(&ac97->reg_mutex);
 373         return change;
 374 }
 375
 376 /**
 377  * snd_ac97_update_bits - update the bits on the given register
 378  * @ac97: the ac97 instance
 379  * @reg: the register to change
 380  * @mask: the bit-mask to change
 381  * @value: the value to set
 382  *
 383  * Updates the masked-bits on the given register only when the value
 384  * is changed.
 385  *
 386  * Returns 1 if the bits are changed, 0 if no change, or a negative
 387  * code on failure.
 388  */
 389 int snd_ac97_update_bits(ac97_t *ac97, unsigned short reg, unsigned short mask, unsigned short value)
 390 {
 391         int change;
 392
 393         if (!snd_ac97_valid_reg(ac97, reg))
 394                 return -EINVAL;
 395         down(&ac97->reg_mutex);
 396         change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 397         up(&ac97->reg_mutex);
 398         return change;
 399 }
 400
 401 /* no lock version - see snd_ac97_updat_bits() */
 402 int snd_ac97_update_bits_nolock(ac97_t *ac97, unsigned short reg,
 403                                 unsigned short mask, unsigned short value)
 404 {
 405         int change;
 406         unsigned short old, new;
 407
 408         old = snd_ac97_read_cache(ac97, reg);
 409         new = (old & ~mask) | value;
 410         change = old != new;
 411         if (change) {
 412                 ac97->regs[reg] = new;
 413                 ac97->bus->ops->write(ac97, reg, new);
 414         }
 415         set_bit(reg, ac97->reg_accessed);
 416         return change;
 417 }
 418
 419 static int snd_ac97_ad18xx_update_pcm_bits(ac97_t *ac97, int codec, unsigned short mask, unsigned short value)
 420 {
 421         int change;
 422         unsigned short old, new, cfg;
 423
 424         down(&ac97->page_mutex);
 425         old = ac97->spec.ad18xx.pcmreg[codec];
 426         new = (old & ~mask) | value;
 427         change = old != new;
 428         if (change) {
 429                 down(&ac97->reg_mutex);
 430                 cfg = snd_ac97_read_cache(ac97, AC97_AD_SERIAL_CFG);
 431                 ac97->spec.ad18xx.pcmreg[codec] = new;
 432                 /* select single codec */
 433                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 434                                  (cfg & ~0x7000) |
 435                                  ac97->spec.ad18xx.unchained[codec] | ac97->spec.ad18xx.chained[codec]);
 436                 /* update PCM bits */
 437                 ac97->bus->ops->write(ac97, AC97_PCM, new);
 438                 /* select all codecs */
 439                 ac97->bus->ops->write(ac97, AC97_AD_SERIAL_CFG,
 440                                  cfg | 0x7000);
 441                 up(&ac97->reg_mutex);
 442         }
 443         up(&ac97->page_mutex);
 444         return change;
 445 }
 446
 447 /*
 448  * Controls
 449  */
 450
 451 int snd_ac97_info_enum_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 452 {
 453         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 454
 455         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 456         uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
 457         uinfo->value.enumerated.items = e->mask;
 458
 459         if (uinfo->value.enumerated.item > e->mask - 1)
 460                 uinfo->value.enumerated.item = e->mask - 1;
 461         strcpy(uinfo->value.enumerated.name, e->texts[uinfo->value.enumerated.item]);
 462         return 0;
 463 }
 464
 465 int snd_ac97_get_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 466 {
 467         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 468         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 469         unsigned short val, bitmask;
 470
 471         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 472                 ;
 473         val = snd_ac97_read_cache(ac97, e->reg);
 474         ucontrol->value.enumerated.item[0] = (val >> e->shift_l) & (bitmask - 1);
 475         if (e->shift_l != e->shift_r)
 476                 ucontrol->value.enumerated.item[1] = (val >> e->shift_r) & (bitmask - 1);
 477
 478         return 0;
 479 }
 480
 481 int snd_ac97_put_enum_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 482 {
 483         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 484         struct ac97_enum *e = (struct ac97_enum *)kcontrol->private_value;
 485         unsigned short val;
 486         unsigned short mask, bitmask;
 487
 488         for (bitmask = 1; bitmask < e->mask; bitmask <<= 1)
 489                 ;
 490         if (ucontrol->value.enumerated.item[0] > e->mask - 1)
 491                 return -EINVAL;
 492         val = ucontrol->value.enumerated.item[0] << e->shift_l;
 493         mask = (bitmask - 1) << e->shift_l;
 494         if (e->shift_l != e->shift_r) {
 495                 if (ucontrol->value.enumerated.item[1] > e->mask - 1)
 496                         return -EINVAL;
 497                 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
 498                 mask |= (bitmask - 1) << e->shift_r;
 499         }
 500         return snd_ac97_update_bits(ac97, e->reg, mask, val);
 501 }
 502
 503 /* save/restore ac97 v2.3 paging */
 504 static int snd_ac97_page_save(ac97_t *ac97, int reg, snd_kcontrol_t *kcontrol)
 505 {
 506         int page_save = -1;
 507         if ((kcontrol->private_value & (1<<25)) &&
 508             (ac97->ext_id & AC97_EI_REV_MASK) >= AC97_EI_REV_23 &&
 509             (reg >= 0x60 && reg < 0x70)) {
 510                 unsigned short page = (kcontrol->private_value >> 26) & 0x0f;
 511                 down(&ac97->page_mutex); /* lock paging */
 512                 page_save = snd_ac97_read(ac97, AC97_INT_PAGING) & AC97_PAGE_MASK;
 513                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page);
 514         }
 515         return page_save;
 516 }
 517
 518 static void snd_ac97_page_restore(ac97_t *ac97, int page_save)
 519 {
 520         if (page_save >= 0) {
 521                 snd_ac97_update_bits(ac97, AC97_INT_PAGING, AC97_PAGE_MASK, page_save);
 522                 up(&ac97->page_mutex); /* unlock paging */
 523         }
 524 }
 525
 526 /* volume and switch controls */
 527 int snd_ac97_info_volsw(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 528 {
 529         int mask = (kcontrol->private_value >> 16) & 0xff;
 530         int shift = (kcontrol->private_value >> 8) & 0x0f;
 531         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 532
 533         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 534         uinfo->count = shift == rshift ? 1 : 2;
 535         uinfo->value.integer.min = 0;
 536         uinfo->value.integer.max = mask;
 537         return 0;
 538 }
 539
 540 int snd_ac97_get_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 541 {
 542         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 543         int reg = kcontrol->private_value & 0xff;
 544         int shift = (kcontrol->private_value >> 8) & 0x0f;
 545         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 546         int mask = (kcontrol->private_value >> 16) & 0xff;
 547         int invert = (kcontrol->private_value >> 24) & 0x01;
 548         int page_save;
 549
 550         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 551         ucontrol->value.integer.value[0] = (snd_ac97_read_cache(ac97, reg) >> shift) & mask;
 552         if (shift != rshift)
 553                 ucontrol->value.integer.value[1] = (snd_ac97_read_cache(ac97, reg) >> rshift) & mask;
 554         if (invert) {
 555                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
 556                 if (shift != rshift)
 557                         ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
 558         }
 559         snd_ac97_page_restore(ac97, page_save);
 560         return 0;
 561 }
 562
 563 int snd_ac97_put_volsw(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 564 {
 565         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 566         int reg = kcontrol->private_value & 0xff;
 567         int shift = (kcontrol->private_value >> 8) & 0x0f;
 568         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 569         int mask = (kcontrol->private_value >> 16) & 0xff;
 570         int invert = (kcontrol->private_value >> 24) & 0x01;
 571         int err, page_save;
 572         unsigned short val, val2, val_mask;
 573
 574         page_save = snd_ac97_page_save(ac97, reg, kcontrol);
 575         val = (ucontrol->value.integer.value[0] & mask);
 576         if (invert)
 577                 val = mask - val;
 578         val_mask = mask << shift;
 579         val = val << shift;
 580         if (shift != rshift) {
 581                 val2 = (ucontrol->value.integer.value[1] & mask);
 582                 if (invert)
 583                         val2 = mask - val2;
 584                 val_mask |= mask << rshift;
 585                 val |= val2 << rshift;
 586         }
 587         err = snd_ac97_update_bits(ac97, reg, val_mask, val);
 588         snd_ac97_page_restore(ac97, page_save);
 589         return err;
 590 }
 591
 592 static const snd_kcontrol_new_t snd_ac97_controls_master_mono[2] = {
 593 AC97_SINGLE("Master Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
 594 AC97_SINGLE("Master Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1)
 595 };
 596
 597 static const snd_kcontrol_new_t snd_ac97_controls_tone[2] = {
 598 AC97_SINGLE("Tone Control - Bass", AC97_MASTER_TONE, 8, 15, 1),
 599 AC97_SINGLE("Tone Control - Treble", AC97_MASTER_TONE, 0, 15, 1)
 600 };
 601
 602 static const snd_kcontrol_new_t snd_ac97_controls_pc_beep[2] = {
 603 AC97_SINGLE("PC Speaker Playback Switch", AC97_PC_BEEP, 15, 1, 1),
 604 AC97_SINGLE("PC Speaker Playback Volume", AC97_PC_BEEP, 1, 15, 1)
 605 };
 606
 607 static const snd_kcontrol_new_t snd_ac97_controls_mic_boost =
 608         AC97_SINGLE("Mic Boost (+20dB)", AC97_MIC, 6, 1, 0);
 609
 610
 611 static const char* std_rec_sel[] = {"Mic", "CD", "Video", "Aux", "Line", "Mix", "Mix Mono", "Phone"};
 612 static const char* std_3d_path[] = {"pre 3D", "post 3D"};
 613 static const char* std_mix[] = {"Mix", "Mic"};
 614 static const char* std_mic[] = {"Mic1", "Mic2"};
 615
 616 static const struct ac97_enum std_enum[] = {
 617 AC97_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, std_rec_sel),
 618 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, std_3d_path),
 619 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, std_mix),
 620 AC97_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, std_mic),
 621 };
 622
 623 static const snd_kcontrol_new_t snd_ac97_control_capture_src =
 624 AC97_ENUM("Capture Source", std_enum[0]);
 625
 626 static const snd_kcontrol_new_t snd_ac97_control_capture_vol =
 627 AC97_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0);
 628
 629 static const snd_kcontrol_new_t snd_ac97_controls_mic_capture[2] = {
 630 AC97_SINGLE("Mic Capture Switch", AC97_REC_GAIN_MIC, 15, 1, 1),
 631 AC97_SINGLE("Mic Capture Volume", AC97_REC_GAIN_MIC, 0, 15, 0)
 632 };
 633
 634 typedef enum {
 635         AC97_GENERAL_PCM_OUT = 0,
 636         AC97_GENERAL_STEREO_ENHANCEMENT,
 637         AC97_GENERAL_3D,
 638         AC97_GENERAL_LOUDNESS,
 639         AC97_GENERAL_MONO,
 640         AC97_GENERAL_MIC,
 641         AC97_GENERAL_LOOPBACK
 642 } ac97_general_index_t;
 643
 644 static const snd_kcontrol_new_t snd_ac97_controls_general[7] = {
 645 AC97_ENUM("PCM Out Path & Mute", std_enum[1]),
 646 AC97_SINGLE("Simulated Stereo Enhancement", AC97_GENERAL_PURPOSE, 14, 1, 0),
 647 AC97_SINGLE("3D Control - Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
 648 AC97_SINGLE("Loudness (bass boost)", AC97_GENERAL_PURPOSE, 12, 1, 0),
 649 AC97_ENUM("Mono Output Select", std_enum[2]),
 650 AC97_ENUM("Mic Select", std_enum[3]),
 651 AC97_SINGLE("ADC/DAC Loopback", AC97_GENERAL_PURPOSE, 7, 1, 0)
 652 };
 653
 654 const snd_kcontrol_new_t snd_ac97_controls_3d[2] = {
 655 AC97_SINGLE("3D Control - Center", AC97_3D_CONTROL, 8, 15, 0),
 656 AC97_SINGLE("3D Control - Depth", AC97_3D_CONTROL, 0, 15, 0)
 657 };
 658
 659 static const snd_kcontrol_new_t snd_ac97_controls_center[2] = {
 660 AC97_SINGLE("Center Playback Switch", AC97_CENTER_LFE_MASTER, 7, 1, 1),
 661 AC97_SINGLE("Center Playback Volume", AC97_CENTER_LFE_MASTER, 0, 31, 1)
 662 };
 663
 664 static const snd_kcontrol_new_t snd_ac97_controls_lfe[2] = {
 665 AC97_SINGLE("LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 1, 1),
 666 AC97_SINGLE("LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 31, 1)
 667 };
 668
 669 static const snd_kcontrol_new_t snd_ac97_control_eapd =
 670 AC97_SINGLE("External Amplifier", AC97_POWERDOWN, 15, 1, 1);
 671
 672 static const snd_kcontrol_new_t snd_ac97_controls_modem_switches[2] = {
 673 AC97_SINGLE("Off-hook Switch", AC97_GPIO_STATUS, 0, 1, 0),
 674 AC97_SINGLE("Caller ID Switch", AC97_GPIO_STATUS, 2, 1, 0)
 675 };
 676
 677 /* change the existing EAPD control as inverted */
 678 static void set_inv_eapd(ac97_t *ac97, snd_kcontrol_t *kctl)
 679 {
 680         kctl->private_value = AC97_SINGLE_VALUE(AC97_POWERDOWN, 15, 1, 0);
 681         snd_ac97_update_bits(ac97, AC97_POWERDOWN, (1<<15), (1<<15)); /* EAPD up */
 682         ac97->scaps |= AC97_SCAP_INV_EAPD;
 683 }
 684
 685 static int snd_ac97_spdif_mask_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 686 {
 687         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
 688         uinfo->count = 1;
 689         return 0;
 690 }
 691
 692 static int snd_ac97_spdif_cmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 693 {
 694         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 695                                            IEC958_AES0_NONAUDIO |
 696                                            IEC958_AES0_CON_EMPHASIS_5015 |
 697                                            IEC958_AES0_CON_NOT_COPYRIGHT;
 698         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
 699                                            IEC958_AES1_CON_ORIGINAL;
 700         ucontrol->value.iec958.status[3] = IEC958_AES3_CON_FS;
 701         return 0;
 702 }
 703
 704 static int snd_ac97_spdif_pmask_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 705 {
 706         /* FIXME: AC'97 spec doesn't say which bits are used for what */
 707         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
 708                                            IEC958_AES0_NONAUDIO |
 709                                            IEC958_AES0_PRO_FS |
 710                                            IEC958_AES0_PRO_EMPHASIS_5015;
 711         return 0;
 712 }
 713
 714 static int snd_ac97_spdif_default_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 715 {
 716         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 717
 718         down(&ac97->reg_mutex);
 719         ucontrol->value.iec958.status[0] = ac97->spdif_status & 0xff;
 720         ucontrol->value.iec958.status[1] = (ac97->spdif_status >> 8) & 0xff;
 721         ucontrol->value.iec958.status[2] = (ac97->spdif_status >> 16) & 0xff;
 722         ucontrol->value.iec958.status[3] = (ac97->spdif_status >> 24) & 0xff;
 723         up(&ac97->reg_mutex);
 724         return 0;
 725 }
 726
 727 static int snd_ac97_spdif_default_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t * ucontrol)
 728 {
 729         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 730         unsigned int new = 0;
 731         unsigned short val = 0;
 732         int change;
 733
 734         new = val = ucontrol->value.iec958.status[0] & (IEC958_AES0_PROFESSIONAL|IEC958_AES0_NONAUDIO);
 735         if (ucontrol->value.iec958.status[0] & IEC958_AES0_PROFESSIONAL) {
 736                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_PRO_FS|IEC958_AES0_PRO_EMPHASIS_5015);
 737                 switch (new & IEC958_AES0_PRO_FS) {
 738                 case IEC958_AES0_PRO_FS_44100: val |= 0<<12; break;
 739                 case IEC958_AES0_PRO_FS_48000: val |= 2<<12; break;
 740                 case IEC958_AES0_PRO_FS_32000: val |= 3<<12; break;
 741                 default:                       val |= 1<<12; break;
 742                 }
 743                 if ((new & IEC958_AES0_PRO_EMPHASIS) == IEC958_AES0_PRO_EMPHASIS_5015)
 744                         val |= 1<<3;
 745         } else {
 746                 new |= ucontrol->value.iec958.status[0] & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT);
 747                 new |= ((ucontrol->value.iec958.status[1] & (IEC958_AES1_CON_CATEGORY|IEC958_AES1_CON_ORIGINAL)) << 8);
 748                 new |= ((ucontrol->value.iec958.status[3] & IEC958_AES3_CON_FS) << 24);
 749                 if ((new & IEC958_AES0_CON_EMPHASIS) == IEC958_AES0_CON_EMPHASIS_5015)
 750                         val |= 1<<3;
 751                 if (!(new & IEC958_AES0_CON_NOT_COPYRIGHT))
 752                         val |= 1<<2;
 753                 val |= ((new >> 8) & 0xff) << 4;        // category + original
 754                 switch ((new >> 24) & 0xff) {
 755                 case IEC958_AES3_CON_FS_44100: val |= 0<<12; break;
 756                 case IEC958_AES3_CON_FS_48000: val |= 2<<12; break;
 757                 case IEC958_AES3_CON_FS_32000: val |= 3<<12; break;
 758                 default:                       val |= 1<<12; break;
 759                 }
 760         }
 761
 762         down(&ac97->reg_mutex);
 763         change = ac97->spdif_status != new;
 764         ac97->spdif_status = new;
 765
 766         if (ac97->flags & AC97_CS_SPDIF) {
 767                 int x = (val >> 12) & 0x03;
 768                 switch (x) {
 769                 case 0: x = 1; break;  // 44.1
 770                 case 2: x = 0; break;  // 48.0
 771                 default: x = 0; break; // illegal.
 772                 }
 773                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CSR_SPDIF, 0x3fff, ((val & 0xcfff) | (x << 12)));
 774         } else if (ac97->flags & AC97_CX_SPDIF) {
 775                 int v;
 776                 v = new & (IEC958_AES0_CON_EMPHASIS_5015|IEC958_AES0_CON_NOT_COPYRIGHT) ? 0 : AC97_CXR_COPYRGT;
 777                 v |= new & IEC958_AES0_NONAUDIO ? AC97_CXR_SPDIF_AC3 : AC97_CXR_SPDIF_PCM;
 778                 change |= snd_ac97_update_bits_nolock(ac97, AC97_CXR_AUDIO_MISC,
 779                                                       AC97_CXR_SPDIF_MASK | AC97_CXR_COPYRGT,
 780                                                       v);
 781         } else {
 782                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 783                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 784
 785                 change |= snd_ac97_update_bits_nolock(ac97, AC97_SPDIF, 0x3fff, val);
 786                 if (extst & AC97_EA_SPDIF) {
 787                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 788                 }
 789         }
 790         up(&ac97->reg_mutex);
 791
 792         return change;
 793 }
 794
 795 static int snd_ac97_put_spsa(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 796 {
 797         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 798         int reg = kcontrol->private_value & 0xff;
 799         int shift = (kcontrol->private_value >> 8) & 0xff;
 800         int mask = (kcontrol->private_value >> 16) & 0xff;
 801         // int invert = (kcontrol->private_value >> 24) & 0xff;
 802         unsigned short value, old, new;
 803         int change;
 804
 805         value = (ucontrol->value.integer.value[0] & mask);
 806
 807         down(&ac97->reg_mutex);
 808         mask <<= shift;
 809         value <<= shift;
 810         old = snd_ac97_read_cache(ac97, reg);
 811         new = (old & ~mask) | value;
 812         change = old != new;
 813
 814         if (change) {
 815                 unsigned short extst = snd_ac97_read_cache(ac97, AC97_EXTENDED_STATUS);
 816                 snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0); /* turn off */
 817                 change = snd_ac97_update_bits_nolock(ac97, reg, mask, value);
 818                 if (extst & AC97_EA_SPDIF)
 819                         snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
 820         }
 821         up(&ac97->reg_mutex);
 822         return change;
 823 }
 824
 825 const snd_kcontrol_new_t snd_ac97_controls_spdif[5] = {
 826         {
 827                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 828                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 829                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
 830                 .info = snd_ac97_spdif_mask_info,
 831                 .get = snd_ac97_spdif_cmask_get,
 832         },
 833         {
 834                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
 835                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 836                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
 837                 .info = snd_ac97_spdif_mask_info,
 838                 .get = snd_ac97_spdif_pmask_get,
 839         },
 840         {
 841                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 842                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
 843                 .info = snd_ac97_spdif_mask_info,
 844                 .get = snd_ac97_spdif_default_get,
 845                 .put = snd_ac97_spdif_default_put,
 846         },
 847
 848         AC97_SINGLE(SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),AC97_EXTENDED_STATUS, 2, 1, 0),
 849         {
 850                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 851                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,NONE) "AC97-SPSA",
 852                 .info = snd_ac97_info_volsw,
 853                 .get = snd_ac97_get_volsw,
 854                 .put = snd_ac97_put_spsa,
 855                 .private_value = AC97_SINGLE_VALUE(AC97_EXTENDED_STATUS, 4, 3, 0)
 856         },
 857 };
 858
 859 #define AD18XX_PCM_BITS(xname, codec, lshift, rshift, mask) \
 860 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_bits, \
 861   .get = snd_ac97_ad18xx_pcm_get_bits, .put = snd_ac97_ad18xx_pcm_put_bits, \
 862   .private_value = (codec) | ((lshift) << 8) | ((rshift) << 12) | ((mask) << 16) }
 863
 864 static int snd_ac97_ad18xx_pcm_info_bits(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 865 {
 866         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 867         int mask = (kcontrol->private_value >> 16) & 0x0f;
 868         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 869         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 870
 871         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
 872         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 873                 uinfo->count = 2;
 874         else
 875                 uinfo->count = 1;
 876         uinfo->value.integer.min = 0;
 877         uinfo->value.integer.max = mask;
 878         return 0;
 879 }
 880
 881 static int snd_ac97_ad18xx_pcm_get_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 882 {
 883         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 884         int codec = kcontrol->private_value & 3;
 885         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 886         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 887         int mask = (kcontrol->private_value >> 16) & 0xff;
 888
 889         ucontrol->value.integer.value[0] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> lshift) & mask);
 890         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES))
 891                 ucontrol->value.integer.value[1] = mask - ((ac97->spec.ad18xx.pcmreg[codec] >> rshift) & mask);
 892         return 0;
 893 }
 894
 895 static int snd_ac97_ad18xx_pcm_put_bits(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 896 {
 897         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 898         int codec = kcontrol->private_value & 3;
 899         int lshift = (kcontrol->private_value >> 8) & 0x0f;
 900         int rshift = (kcontrol->private_value >> 12) & 0x0f;
 901         int mask = (kcontrol->private_value >> 16) & 0xff;
 902         unsigned short val, valmask;
 903
 904         val = (mask - (ucontrol->value.integer.value[0] & mask)) << lshift;
 905         valmask = mask << lshift;
 906         if (lshift != rshift && (ac97->flags & AC97_STEREO_MUTES)) {
 907                 val |= (mask - (ucontrol->value.integer.value[1] & mask)) << rshift;
 908                 valmask |= mask << rshift;
 909         }
 910         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, valmask, val);
 911 }
 912
 913 #define AD18XX_PCM_VOLUME(xname, codec) \
 914 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ac97_ad18xx_pcm_info_volume, \
 915   .get = snd_ac97_ad18xx_pcm_get_volume, .put = snd_ac97_ad18xx_pcm_put_volume, \
 916   .private_value = codec }
 917
 918 static int snd_ac97_ad18xx_pcm_info_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 919 {
 920         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 921         uinfo->count = 2;
 922         uinfo->value.integer.min = 0;
 923         uinfo->value.integer.max = 31;
 924         return 0;
 925 }
 926
 927 static int snd_ac97_ad18xx_pcm_get_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 928 {
 929         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 930         int codec = kcontrol->private_value & 3;
 931
 932         down(&ac97->page_mutex);
 933         ucontrol->value.integer.value[0] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 0) & 31);
 934         ucontrol->value.integer.value[1] = 31 - ((ac97->spec.ad18xx.pcmreg[codec] >> 8) & 31);
 935         up(&ac97->page_mutex);
 936         return 0;
 937 }
 938
 939 static int snd_ac97_ad18xx_pcm_put_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
 940 {
 941         ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
 942         int codec = kcontrol->private_value & 3;
 943         unsigned short val1, val2;
 944
 945         val1 = 31 - (ucontrol->value.integer.value[0] & 31);
 946         val2 = 31 - (ucontrol->value.integer.value[1] & 31);
 947         return snd_ac97_ad18xx_update_pcm_bits(ac97, codec, 0x1f1f, (val1 << 8) | val2);
 948 }
 949
 950 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_pcm[2] = {
 951 AD18XX_PCM_BITS("PCM Playback Switch", 0, 15, 7, 1),
 952 AD18XX_PCM_VOLUME("PCM Playback Volume", 0)
 953 };
 954
 955 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_surround[2] = {
 956 AD18XX_PCM_BITS("Surround Playback Switch", 1, 15, 7, 1),
 957 AD18XX_PCM_VOLUME("Surround Playback Volume", 1)
 958 };
 959
 960 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_center[2] = {
 961 AD18XX_PCM_BITS("Center Playback Switch", 2, 15, 15, 1),
 962 AD18XX_PCM_BITS("Center Playback Volume", 2, 8, 8, 31)
 963 };
 964
 965 static const snd_kcontrol_new_t snd_ac97_controls_ad18xx_lfe[2] = {
 966 AD18XX_PCM_BITS("LFE Playback Switch", 2, 7, 7, 1),
 967 AD18XX_PCM_BITS("LFE Playback Volume", 2, 0, 0, 31)
 968 };
 969
 970 /*
 971  *
 972  */
 973
 974 static void snd_ac97_powerdown(ac97_t *ac97);
 975
 976 static int snd_ac97_bus_free(ac97_bus_t *bus)
 977 {
 978         if (bus) {
 979                 snd_ac97_bus_proc_done(bus);
 980                 kfree(bus->pcms);
 981                 if (bus->private_free)
 982                         bus->private_free(bus);
 983                 kfree(bus);
 984         }
 985         return 0;
 986 }
 987
 988 static int snd_ac97_bus_dev_free(snd_device_t *device)
 989 {
 990         ac97_bus_t *bus = device->device_data;
 991         return snd_ac97_bus_free(bus);
 992 }
 993
 994 static int snd_ac97_free(ac97_t *ac97)
 995 {
 996         if (ac97) {
 997                 snd_ac97_proc_done(ac97);
 998                 if (ac97->bus) {
 999                         ac97->bus->codec[ac97->num] = NULL;
1000                         if (ac97->bus->shared_type) {
1001                                 down(&shared_codec_mutex);
1002                                 shared_codec[ac97->bus->shared_type-1][ac97->num] = NULL;
1003                                 up(&shared_codec_mutex);
1004                         }
1005                 }
1006                 if (ac97->private_free)
1007                         ac97->private_free(ac97);
1008                 kfree(ac97);
1009         }
1010         return 0;
1011 }
1012
1013 static int snd_ac97_dev_free(snd_device_t *device)
1014 {
1015         ac97_t *ac97 = device->device_data;
1016         snd_ac97_powerdown(ac97); /* for avoiding click noises during shut down */
1017         return snd_ac97_free(ac97);
1018 }
1019
1020 static int snd_ac97_try_volume_mix(ac97_t * ac97, int reg)
1021 {
1022         unsigned short val, mask = 0x8000;
1023
1024         if (! snd_ac97_valid_reg(ac97, reg))
1025                 return 0;
1026
1027         switch (reg) {
1028         case AC97_MASTER_TONE:
1029                 return ac97->caps & 0x04 ? 1 : 0;
1030         case AC97_HEADPHONE:
1031                 return ac97->caps & 0x10 ? 1 : 0;
1032         case AC97_REC_GAIN_MIC:
1033                 return ac97->caps & 0x01 ? 1 : 0;
1034         case AC97_3D_CONTROL:
1035                 if (ac97->caps & 0x7c00) {
1036                         val = snd_ac97_read(ac97, reg);
1037                         /* if nonzero - fixed and we can't set it */
1038                         return val == 0;
1039                 }
1040                 return 0;
1041         case AC97_CENTER_LFE_MASTER:    /* center */
1042                 if ((ac97->ext_id & AC97_EI_CDAC) == 0)
1043                         return 0;
1044                 break;
1045         case AC97_CENTER_LFE_MASTER+1:  /* lfe */
1046                 if ((ac97->ext_id & AC97_EI_LDAC) == 0)
1047                         return 0;
1048                 reg = AC97_CENTER_LFE_MASTER;
1049                 mask = 0x0080;
1050                 break;
1051         case AC97_SURROUND_MASTER:
1052                 if ((ac97->ext_id & AC97_EI_SDAC) == 0)
1053                         return 0;
1054                 break;
1055         }
1056
1057         if (ac97->limited_regs && test_bit(reg, ac97->reg_accessed))
1058                 return 1; /* allow without check */
1059
1060         val = snd_ac97_read(ac97, reg);
1061         if (!(val & mask)) {
1062                 /* nothing seems to be here - mute flag is not set */
1063                 /* try another test */
1064                 snd_ac97_write_cache(ac97, reg, val | mask);
1065                 val = snd_ac97_read(ac97, reg);
1066                 if (!(val & mask))
1067                         return 0;       /* nothing here */
1068         }
1069         return 1;               /* success, useable */
1070 }
1071
1072 static void check_volume_resolution(ac97_t *ac97, int reg, unsigned char *lo_max, unsigned char *hi_max)
1073 {
1074         unsigned short cbit[3] = { 0x20, 0x10, 0x01 };
1075         unsigned char max[3] = { 63, 31, 15 };
1076         int i;
1077
1078         *lo_max = *hi_max = 0;
1079         for (i = 0 ; i < ARRAY_SIZE(cbit); i++) {
1080                 unsigned short val;
1081                 snd_ac97_write(ac97, reg, 0x8080 | cbit[i] | (cbit[i] << 8));
1082                 /* Do the read twice due to buffers on some ac97 codecs.
1083                  * e.g. The STAC9704 returns exactly what you wrote the the register
1084                  * if you read it immediately. This causes the detect routine to fail.
1085                  */
1086                 val = snd_ac97_read(ac97, reg);
1087                 val = snd_ac97_read(ac97, reg);
1088                 if (! *lo_max && (val & 0x7f) == cbit[i])
1089                         *lo_max = max[i];
1090                 if (! *hi_max && ((val >> 8) & 0x7f) == cbit[i])
1091                         *hi_max = max[i];
1092                 if (*lo_max && *hi_max)
1093                         break;
1094         }
1095 }
1096
1097 int snd_ac97_try_bit(ac97_t * ac97, int reg, int bit)
1098 {
1099         unsigned short mask, val, orig, res;
1100
1101         mask = 1 << bit;
1102         orig = snd_ac97_read(ac97, reg);
1103         val = orig ^ mask;
1104         snd_ac97_write(ac97, reg, val);
1105         res = snd_ac97_read(ac97, reg);
1106         snd_ac97_write_cache(ac97, reg, orig);
1107         return res == val;
1108 }
1109
1110 /* check the volume resolution of center/lfe */
1111 static void snd_ac97_change_volume_params2(ac97_t * ac97, int reg, int shift, unsigned char *max)
1112 {
1113         unsigned short val, val1;
1114
1115         *max = 63;
1116         val = 0x8080 | (0x20 << shift);
1117         snd_ac97_write(ac97, reg, val);
1118         val1 = snd_ac97_read(ac97, reg);
1119         if (val != val1) {
1120                 *max = 31;
1121         }
1122         /* reset volume to zero */
1123         snd_ac97_write_cache(ac97, reg, 0x8080);
1124 }
1125
1126 static inline int printable(unsigned int x)
1127 {
1128         x &= 0xff;
1129         if (x < ' ' || x >= 0x71) {
1130                 if (x <= 0x89)
1131                         return x - 0x71 + 'A';
1132                 return '?';
1133         }
1134         return x;
1135 }
1136
1137 snd_kcontrol_t *snd_ac97_cnew(const snd_kcontrol_new_t *_template, ac97_t * ac97)
1138 {
1139         snd_kcontrol_new_t template;
1140         memcpy(&template, _template, sizeof(template));
1141         snd_runtime_check(!template.index, return NULL);
1142         template.index = ac97->num;
1143         return snd_ctl_new1(&template, ac97);
1144 }
1145
1146 /*
1147  * create mute switch(es) for normal stereo controls
1148  */
1149 static int snd_ac97_cmute_new_stereo(snd_card_t *card, char *name, int reg, int check_stereo, ac97_t *ac97)
1150 {
1151         snd_kcontrol_t *kctl;
1152         int err;
1153         unsigned short val, val1, mute_mask;
1154
1155         if (! snd_ac97_valid_reg(ac97, reg))
1156                 return 0;
1157
1158         mute_mask = 0x8000;
1159         val = snd_ac97_read(ac97, reg);
1160         if (check_stereo || (ac97->flags & AC97_STEREO_MUTES)) {
1161                 /* check whether both mute bits work */
1162                 val1 = val | 0x8080;
1163                 snd_ac97_write(ac97, reg, val1);
1164                 if (val1 == snd_ac97_read(ac97, reg))
1165                         mute_mask = 0x8080;
1166         }
1167         if (mute_mask == 0x8080) {
1168                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 15, 7, 1, 1);
1169                 tmp.index = ac97->num;
1170                 kctl = snd_ctl_new1(&tmp, ac97);
1171         } else {
1172                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 15, 1, 1);
1173                 tmp.index = ac97->num;
1174                 kctl = snd_ctl_new1(&tmp, ac97);
1175         }
1176         err = snd_ctl_add(card, kctl);
1177         if (err < 0)
1178                 return err;
1179         /* mute as default */
1180         snd_ac97_write_cache(ac97, reg, val | mute_mask);
1181         return 0;
1182 }
1183
1184 /*
1185  * create a volume for normal stereo/mono controls
1186  */
1187 static int snd_ac97_cvol_new(snd_card_t *card, char *name, int reg, unsigned int lo_max,
1188                              unsigned int hi_max, ac97_t *ac97)
1189 {
1190         int err;
1191         snd_kcontrol_t *kctl;
1192
1193         if (! snd_ac97_valid_reg(ac97, reg))
1194                 return 0;
1195         if (hi_max) {
1196                 /* invert */
1197                 snd_kcontrol_new_t tmp = AC97_DOUBLE(name, reg, 8, 0, lo_max, 1);
1198                 tmp.index = ac97->num;
1199                 kctl = snd_ctl_new1(&tmp, ac97);
1200         } else {
1201                 /* invert */
1202                 snd_kcontrol_new_t tmp = AC97_SINGLE(name, reg, 0, lo_max, 1);
1203                 tmp.index = ac97->num;
1204                 kctl = snd_ctl_new1(&tmp, ac97);
1205         }
1206         err = snd_ctl_add(card, kctl);
1207         if (err < 0)
1208                 return err;
1209         snd_ac97_write_cache(ac97, reg,
1210                              (snd_ac97_read(ac97, reg) & 0x8080) |
1211                              lo_max | (hi_max << 8));
1212         return 0;
1213 }
1214
1215 /*
1216  * create a mute-switch and a volume for normal stereo/mono controls
1217  */
1218 static int snd_ac97_cmix_new_stereo(snd_card_t *card, const char *pfx, int reg, int check_stereo, ac97_t *ac97)
1219 {
1220         int err;
1221         char name[44];
1222         unsigned char lo_max, hi_max;
1223
1224         if (! snd_ac97_valid_reg(ac97, reg))
1225                 return 0;
1226
1227         if (snd_ac97_try_bit(ac97, reg, 15)) {
1228                 sprintf(name, "%s Switch", pfx);
1229                 if ((err = snd_ac97_cmute_new_stereo(card, name, reg, check_stereo, ac97)) < 0)
1230                         return err;
1231         }
1232         check_volume_resolution(ac97, reg, &lo_max, &hi_max);
1233         if (lo_max) {
1234                 sprintf(name, "%s Volume", pfx);
1235                 if ((err = snd_ac97_cvol_new(card, name, reg, lo_max, hi_max, ac97)) < 0)
1236                         return err;
1237         }
1238         return 0;
1239 }
1240
1241 #define snd_ac97_cmix_new(card, pfx, reg, ac97) snd_ac97_cmix_new_stereo(card, pfx, reg, 0, ac97)
1242 #define snd_ac97_cmute_new(card, name, reg, ac97)       snd_ac97_cmute_new_stereo(card, name, reg, 0, ac97)
1243
1244 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97);
1245
1246 static int snd_ac97_mixer_build(ac97_t * ac97)
1247 {
1248         snd_card_t *card = ac97->bus->card;
1249         snd_kcontrol_t *kctl;
1250         int err;
1251         unsigned int idx;
1252         unsigned char max;
1253
1254         /* build master controls */
1255         /* AD claims to remove this control from AD1887, although spec v2.2 does not allow this */
1256         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER)) {
1257                 if (ac97->flags & AC97_HAS_NO_MASTER_VOL)
1258                         err = snd_ac97_cmute_new(card, "Master Playback Switch", AC97_MASTER, ac97);
1259                 else
1260                         err = snd_ac97_cmix_new(card, "Master Playback", AC97_MASTER, ac97);
1261                 if (err < 0)
1262                         return err;
1263         }
1264
1265         ac97->regs[AC97_CENTER_LFE_MASTER] = 0x8080;
1266
1267         /* build center controls */
1268         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER)) {
1269                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_center[0], ac97))) < 0)
1270                         return err;
1271                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_center[1], ac97))) < 0)
1272                         return err;
1273                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 0, &max);
1274                 kctl->private_value &= ~(0xff << 16);
1275                 kctl->private_value |= (int)max << 16;
1276                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max);
1277         }
1278
1279         /* build LFE controls */
1280         if (snd_ac97_try_volume_mix(ac97, AC97_CENTER_LFE_MASTER+1)) {
1281                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_lfe[0], ac97))) < 0)
1282                         return err;
1283                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_lfe[1], ac97))) < 0)
1284                         return err;
1285                 snd_ac97_change_volume_params2(ac97, AC97_CENTER_LFE_MASTER, 8, &max);
1286                 kctl->private_value &= ~(0xff << 16);
1287                 kctl->private_value |= (int)max << 16;
1288                 snd_ac97_write_cache(ac97, AC97_CENTER_LFE_MASTER, ac97->regs[AC97_CENTER_LFE_MASTER] | max << 8);
1289         }
1290
1291         /* build surround controls */
1292         if (snd_ac97_try_volume_mix(ac97, AC97_SURROUND_MASTER)) {
1293                 /* Surround Master (0x38) is with stereo mutes */
1294                 if ((err = snd_ac97_cmix_new_stereo(card, "Surround Playback", AC97_SURROUND_MASTER, 1, ac97)) < 0)
1295                         return err;
1296         }
1297
1298         /* build headphone controls */
1299         if (snd_ac97_try_volume_mix(ac97, AC97_HEADPHONE)) {
1300                 if ((err = snd_ac97_cmix_new(card, "Headphone Playback", AC97_HEADPHONE, ac97)) < 0)
1301                         return err;
1302         }
1303
1304         /* build master mono controls */
1305         if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_MONO)) {
1306                 if ((err = snd_ac97_cmix_new(card, "Master Mono Playback", AC97_MASTER_MONO, ac97)) < 0)
1307                         return err;
1308         }
1309
1310         /* build master tone controls */
1311         if (!(ac97->flags & AC97_HAS_NO_TONE)) {
1312                 if (snd_ac97_try_volume_mix(ac97, AC97_MASTER_TONE)) {
1313                         for (idx = 0; idx < 2; idx++) {
1314                                 if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_tone[idx], ac97))) < 0)
1315                                         return err;
1316                                 if (ac97->id == AC97_ID_YMF753) {
1317                                         kctl->private_value &= ~(0xff << 16);
1318                                         kctl->private_value |= 7 << 16;
1319                                 }
1320                         }
1321                         snd_ac97_write_cache(ac97, AC97_MASTER_TONE, 0x0f0f);
1322                 }
1323         }
1324
1325         /* build PC Speaker controls */
1326         if (!(ac97->flags & AC97_HAS_NO_PC_BEEP) &&
1327                 ((ac97->flags & AC97_HAS_PC_BEEP) ||
1328             snd_ac97_try_volume_mix(ac97, AC97_PC_BEEP))) {
1329                 for (idx = 0; idx < 2; idx++)
1330                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_pc_beep[idx], ac97))) < 0)
1331                                 return err;
1332                 snd_ac97_write_cache(ac97, AC97_PC_BEEP,
1333                                      snd_ac97_read(ac97, AC97_PC_BEEP) | 0x801e);
1334         }
1335
1336         /* build Phone controls */
1337         if (!(ac97->flags & AC97_HAS_NO_PHONE)) {
1338                 if (snd_ac97_try_volume_mix(ac97, AC97_PHONE)) {
1339                         if ((err = snd_ac97_cmix_new(card, "Phone Playback", AC97_PHONE, ac97)) < 0)
1340                                 return err;
1341                 }
1342         }
1343
1344         /* build MIC controls */
1345         if (!(ac97->flags & AC97_HAS_NO_MIC)) {
1346                 if (snd_ac97_try_volume_mix(ac97, AC97_MIC)) {
1347                         if ((err = snd_ac97_cmix_new(card, "Mic Playback", AC97_MIC, ac97)) < 0)
1348                                 return err;
1349                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_boost, ac97))) < 0)
1350                                 return err;
1351                 }
1352         }
1353
1354         /* build Line controls */
1355         if (snd_ac97_try_volume_mix(ac97, AC97_LINE)) {
1356                 if ((err = snd_ac97_cmix_new(card, "Line Playback", AC97_LINE, ac97)) < 0)
1357                         return err;
1358         }
1359
1360         /* build CD controls */
1361         if (!(ac97->flags & AC97_HAS_NO_CD)) {
1362                 if (snd_ac97_try_volume_mix(ac97, AC97_CD)) {
1363                         if ((err = snd_ac97_cmix_new(card, "CD Playback", AC97_CD, ac97)) < 0)
1364                                 return err;
1365                 }
1366         }
1367
1368         /* build Video controls */
1369         if (!(ac97->flags & AC97_HAS_NO_VIDEO)) {
1370                 if (snd_ac97_try_volume_mix(ac97, AC97_VIDEO)) {
1371                         if ((err = snd_ac97_cmix_new(card, "Video Playback", AC97_VIDEO, ac97)) < 0)
1372                                 return err;
1373                 }
1374         }
1375
1376         /* build Aux controls */
1377         if (snd_ac97_try_volume_mix(ac97, AC97_AUX)) {
1378                 if ((err = snd_ac97_cmix_new(card, "Aux Playback", AC97_AUX, ac97)) < 0)
1379                         return err;
1380         }
1381
1382         /* build PCM controls */
1383         if (ac97->flags & AC97_AD_MULTI) {
1384                 unsigned short init_val;
1385                 if (ac97->flags & AC97_STEREO_MUTES)
1386                         init_val = 0x9f9f;
1387                 else
1388                         init_val = 0x9f1f;
1389                 for (idx = 0; idx < 2; idx++)
1390                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_pcm[idx], ac97))) < 0)
1391                                 return err;
1392                 ac97->spec.ad18xx.pcmreg[0] = init_val;
1393                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC) {
1394                         for (idx = 0; idx < 2; idx++)
1395                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_surround[idx], ac97))) < 0)
1396                                         return err;
1397                         ac97->spec.ad18xx.pcmreg[1] = init_val;
1398                 }
1399                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC) {
1400                         for (idx = 0; idx < 2; idx++)
1401                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_center[idx], ac97))) < 0)
1402                                         return err;
1403                         for (idx = 0; idx < 2; idx++)
1404                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_ad18xx_lfe[idx], ac97))) < 0)
1405                                         return err;
1406                         ac97->spec.ad18xx.pcmreg[2] = init_val;
1407                 }
1408                 snd_ac97_write_cache(ac97, AC97_PCM, init_val);
1409         } else {
1410                 if (!(ac97->flags & AC97_HAS_NO_STD_PCM)) {
1411                         if (ac97->flags & AC97_HAS_NO_PCM_VOL)
1412                                 err = snd_ac97_cmute_new(card, "PCM Playback Switch", AC97_PCM, ac97);
1413                         else
1414                                 err = snd_ac97_cmix_new(card, "PCM Playback", AC97_PCM, ac97);
1415                         if (err < 0)
1416                                 return err;
1417                 }
1418         }
1419
1420         /* build Capture controls */
1421         if (!(ac97->flags & AC97_HAS_NO_REC_GAIN)) {
1422                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_src, ac97))) < 0)
1423                         return err;
1424                 if (snd_ac97_try_bit(ac97, AC97_REC_GAIN, 15)) {
1425                         if ((err = snd_ac97_cmute_new(card, "Capture Switch", AC97_REC_GAIN, ac97)) < 0)
1426                                 return err;
1427                 }
1428                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_control_capture_vol, ac97))) < 0)
1429                         return err;
1430                 snd_ac97_write_cache(ac97, AC97_REC_SEL, 0x0000);
1431                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x0000);
1432         }
1433         /* build MIC Capture controls */
1434         if (snd_ac97_try_volume_mix(ac97, AC97_REC_GAIN_MIC)) {
1435                 for (idx = 0; idx < 2; idx++)
1436                         if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_mic_capture[idx], ac97))) < 0)
1437                                 return err;
1438                 snd_ac97_write_cache(ac97, AC97_REC_GAIN_MIC, 0x0000);
1439         }
1440
1441         /* build PCM out path & mute control */
1442         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 15)) {
1443                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_PCM_OUT], ac97))) < 0)
1444                         return err;
1445         }
1446
1447         /* build Simulated Stereo Enhancement control */
1448         if (ac97->caps & 0x0008) {
1449                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_STEREO_ENHANCEMENT], ac97))) < 0)
1450                         return err;
1451         }
1452
1453         /* build 3D Stereo Enhancement control */
1454         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 13)) {
1455                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_3D], ac97))) < 0)
1456                         return err;
1457         }
1458
1459         /* build Loudness control */
1460         if (ac97->caps & 0x0020) {
1461                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOUDNESS], ac97))) < 0)
1462                         return err;
1463         }
1464
1465         /* build Mono output select control */
1466         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 9)) {
1467                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MONO], ac97))) < 0)
1468                         return err;
1469         }
1470
1471         /* build Mic select control */
1472         if (snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 8)) {
1473                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_MIC], ac97))) < 0)
1474                         return err;
1475         }
1476
1477         /* build ADC/DAC loopback control */
1478         if (enable_loopback && snd_ac97_try_bit(ac97, AC97_GENERAL_PURPOSE, 7)) {
1479                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_general[AC97_GENERAL_LOOPBACK], ac97))) < 0)
1480                         return err;
1481         }
1482
1483         snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, ~AC97_GP_DRSS_MASK, 0x0000);
1484
1485         /* build 3D controls */
1486         if (ac97->build_ops->build_3d) {
1487                 ac97->build_ops->build_3d(ac97);
1488         } else {
1489                 if (snd_ac97_try_volume_mix(ac97, AC97_3D_CONTROL)) {
1490                         unsigned short val;
1491                         val = 0x0707;
1492                         snd_ac97_write(ac97, AC97_3D_CONTROL, val);
1493                         val = snd_ac97_read(ac97, AC97_3D_CONTROL);
1494                         val = val == 0x0606;
1495                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[0], ac97))) < 0)
1496                                 return err;
1497                         if (val)
1498                                 kctl->private_value = AC97_3D_CONTROL | (9 << 8) | (7 << 16);
1499                         if ((err = snd_ctl_add(card, kctl = snd_ac97_cnew(&snd_ac97_controls_3d[1], ac97))) < 0)
1500                                 return err;
1501                         if (val)
1502                                 kctl->private_value = AC97_3D_CONTROL | (1 << 8) | (7 << 16);
1503                         snd_ac97_write_cache(ac97, AC97_3D_CONTROL, 0x0000);
1504                 }
1505         }
1506
1507         /* build S/PDIF controls */
1508         if ((ac97->ext_id & AC97_EI_SPDIF) && !(ac97->scaps & AC97_SCAP_NO_SPDIF)) {
1509                 if (ac97->build_ops->build_spdif) {
1510                         if ((err = ac97->build_ops->build_spdif(ac97)) < 0)
1511                                 return err;
1512                 } else {
1513                         for (idx = 0; idx < 5; idx++)
1514                                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_spdif[idx], ac97))) < 0)
1515                                         return err;
1516                         if (ac97->build_ops->build_post_spdif) {
1517                                 if ((err = ac97->build_ops->build_post_spdif(ac97)) < 0)
1518                                         return err;
1519                         }
1520                         /* set default PCM S/PDIF params */
1521                         /* consumer,PCM audio,no copyright,no preemphasis,PCM coder,original,48000Hz */
1522                         snd_ac97_write_cache(ac97, AC97_SPDIF, 0x2a20);
1523                         ac97->rates[AC97_RATES_SPDIF] = snd_ac97_determine_spdif_rates(ac97);
1524                 }
1525                 ac97->spdif_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
1526         }
1527
1528         /* build chip specific controls */
1529         if (ac97->build_ops->build_specific)
1530                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1531                         return err;
1532
1533         if (snd_ac97_try_bit(ac97, AC97_POWERDOWN, 15)) {
1534                 kctl = snd_ac97_cnew(&snd_ac97_control_eapd, ac97);
1535                 if (! kctl)
1536                         return -ENOMEM;
1537                 if (ac97->scaps & AC97_SCAP_INV_EAPD)
1538                         set_inv_eapd(ac97, kctl);
1539                 if ((err = snd_ctl_add(card, kctl)) < 0)
1540                         return err;
1541         }
1542
1543         return 0;
1544 }
1545
1546 static int snd_ac97_modem_build(snd_card_t * card, ac97_t * ac97)
1547 {
1548         int err, idx;
1549
1550         //printk("AC97_GPIO_CFG = %x\n",snd_ac97_read(ac97,AC97_GPIO_CFG));
1551         snd_ac97_write(ac97, AC97_GPIO_CFG, 0xffff & ~(AC97_GPIO_LINE1_OH));
1552         snd_ac97_write(ac97, AC97_GPIO_POLARITY, 0xffff & ~(AC97_GPIO_LINE1_OH));
1553         snd_ac97_write(ac97, AC97_GPIO_STICKY, 0xffff);
1554         snd_ac97_write(ac97, AC97_GPIO_WAKEUP, 0x0);
1555         snd_ac97_write(ac97, AC97_MISC_AFE, 0x0);
1556
1557         /* build modem switches */
1558         for (idx = 0; idx < ARRAY_SIZE(snd_ac97_controls_modem_switches); idx++)
1559                 if ((err = snd_ctl_add(card, snd_ac97_cnew(&snd_ac97_controls_modem_switches[idx], ac97))) < 0)
1560                         return err;
1561
1562         /* build chip specific controls */
1563         if (ac97->build_ops->build_specific)
1564                 if ((err = ac97->build_ops->build_specific(ac97)) < 0)
1565                         return err;
1566
1567         return 0;
1568 }
1569
1570 static int snd_ac97_test_rate(ac97_t *ac97, int reg, int shadow_reg, int rate)
1571 {
1572         unsigned short val;
1573         unsigned int tmp;
1574
1575         tmp = ((unsigned int)rate * ac97->bus->clock) / 48000;
1576         snd_ac97_write_cache(ac97, reg, tmp & 0xffff);
1577         if (shadow_reg)
1578                 snd_ac97_write_cache(ac97, shadow_reg, tmp & 0xffff);
1579         val = snd_ac97_read(ac97, reg);
1580         return val == (tmp & 0xffff);
1581 }
1582
1583 static void snd_ac97_determine_rates(ac97_t *ac97, int reg, int shadow_reg, unsigned int *r_result)
1584 {
1585         unsigned int result = 0;
1586         unsigned short saved;
1587
1588         if (ac97->bus->no_vra) {
1589                 *r_result = SNDRV_PCM_RATE_48000;
1590                 if ((ac97->flags & AC97_DOUBLE_RATE) &&
1591                     reg == AC97_PCM_FRONT_DAC_RATE)
1592                         *r_result |= SNDRV_PCM_RATE_96000;
1593                 return;
1594         }
1595
1596         saved = snd_ac97_read(ac97, reg);
1597         if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
1598                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1599                                      AC97_EA_DRA, 0);
1600         /* test a non-standard rate */
1601         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11000))
1602                 result |= SNDRV_PCM_RATE_CONTINUOUS;
1603         /* let's try to obtain standard rates */
1604         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 8000))
1605                 result |= SNDRV_PCM_RATE_8000;
1606         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 11025))
1607                 result |= SNDRV_PCM_RATE_11025;
1608         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 16000))
1609                 result |= SNDRV_PCM_RATE_16000;
1610         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 22050))
1611                 result |= SNDRV_PCM_RATE_22050;
1612         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 32000))
1613                 result |= SNDRV_PCM_RATE_32000;
1614         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 44100))
1615                 result |= SNDRV_PCM_RATE_44100;
1616         if (snd_ac97_test_rate(ac97, reg, shadow_reg, 48000))
1617                 result |= SNDRV_PCM_RATE_48000;
1618         if ((ac97->flags & AC97_DOUBLE_RATE) &&
1619             reg == AC97_PCM_FRONT_DAC_RATE) {
1620                 /* test standard double rates */
1621                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1622                                      AC97_EA_DRA, AC97_EA_DRA);
1623                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 64000 / 2))
1624                         result |= SNDRV_PCM_RATE_64000;
1625                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 88200 / 2))
1626                         result |= SNDRV_PCM_RATE_88200;
1627                 if (snd_ac97_test_rate(ac97, reg, shadow_reg, 96000 / 2))
1628                         result |= SNDRV_PCM_RATE_96000;
1629                 /* some codecs don't support variable double rates */
1630                 if (!snd_ac97_test_rate(ac97, reg, shadow_reg, 76100 / 2))
1631                         result &= ~SNDRV_PCM_RATE_CONTINUOUS;
1632                 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
1633                                      AC97_EA_DRA, 0);
1634         }
1635         /* restore the default value */
1636         snd_ac97_write_cache(ac97, reg, saved);
1637         if (shadow_reg)
1638                 snd_ac97_write_cache(ac97, shadow_reg, saved);
1639         *r_result = result;
1640 }
1641
1642 /* check AC97_SPDIF register to accept which sample rates */
1643 static unsigned int snd_ac97_determine_spdif_rates(ac97_t *ac97)
1644 {
1645         unsigned int result = 0;
1646         int i;
1647         static unsigned short ctl_bits[] = {
1648                 AC97_SC_SPSR_44K, AC97_SC_SPSR_32K, AC97_SC_SPSR_48K
1649         };
1650         static unsigned int rate_bits[] = {
1651                 SNDRV_PCM_RATE_44100, SNDRV_PCM_RATE_32000, SNDRV_PCM_RATE_48000
1652         };
1653
1654         for (i = 0; i < (int)ARRAY_SIZE(ctl_bits); i++) {
1655                 snd_ac97_update_bits(ac97, AC97_SPDIF, AC97_SC_SPSR_MASK, ctl_bits[i]);
1656                 if ((snd_ac97_read(ac97, AC97_SPDIF) & AC97_SC_SPSR_MASK) == ctl_bits[i])
1657                         result |= rate_bits[i];
1658         }
1659         return result;
1660 }
1661
1662 /* look for the codec id table matching with the given id */
1663 static const ac97_codec_id_t *look_for_codec_id(const ac97_codec_id_t *table,
1664                                                 unsigned int id)
1665 {
1666         const ac97_codec_id_t *pid;
1667
1668         for (pid = table; pid->id; pid++)
1669                 if (pid->id == (id & pid->mask))
1670                         return pid;
1671         return NULL;
1672 }
1673
1674 void snd_ac97_get_name(ac97_t *ac97, unsigned int id, char *name, int modem)
1675 {
1676         const ac97_codec_id_t *pid;
1677
1678         sprintf(name, "0x%x %c%c%c", id,
1679                 printable(id >> 24),
1680                 printable(id >> 16),
1681                 printable(id >> 8));
1682         pid = look_for_codec_id(snd_ac97_codec_id_vendors, id);
1683         if (! pid)
1684                 return;
1685
1686         strcpy(name, pid->name);
1687         if (ac97 && pid->patch) {
1688                 if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1689                     (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1690                         pid->patch(ac97);
1691         }
1692
1693         pid = look_for_codec_id(snd_ac97_codec_ids, id);
1694         if (pid) {
1695                 strcat(name, " ");
1696                 strcat(name, pid->name);
1697                 if (pid->mask != 0xffffffff)
1698                         sprintf(name + strlen(name), " rev %d", id & ~pid->mask);
1699                 if (ac97 && pid->patch) {
1700                         if ((modem && (pid->flags & AC97_MODEM_PATCH)) ||
1701                             (! modem && ! (pid->flags & AC97_MODEM_PATCH)))
1702                                 pid->patch(ac97);
1703                 }
1704         } else
1705                 sprintf(name + strlen(name), " id %x", id & 0xff);
1706 }
1707
1708 /**
1709  * snd_ac97_get_short_name - retrieve codec name
1710  * @ac97: the codec instance
1711  *
1712  * Returns the short identifying name of the codec.
1713  */
1714 const char *snd_ac97_get_short_name(ac97_t *ac97)
1715 {
1716         const ac97_codec_id_t *pid;
1717
1718         for (pid = snd_ac97_codec_ids; pid->id; pid++)
1719                 if (pid->id == (ac97->id & pid->mask))
1720                         return pid->name;
1721         return "unknown codec";
1722 }
1723
1724
1725 /* wait for a while until registers are accessible after RESET
1726  * return 0 if ok, negative not ready
1727  */
1728 static int ac97_reset_wait(ac97_t *ac97, int timeout, int with_modem)
1729 {
1730         unsigned long end_time;
1731         unsigned short val;
1732
1733         end_time = jiffies + timeout;
1734         do {
1735
1736                 /* use preliminary reads to settle the communication */
1737                 snd_ac97_read(ac97, AC97_RESET);
1738                 snd_ac97_read(ac97, AC97_VENDOR_ID1);
1739                 snd_ac97_read(ac97, AC97_VENDOR_ID2);
1740                 /* modem? */
1741                 if (with_modem) {
1742                         val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1743                         if (val != 0xffff && (val & 1) != 0)
1744                                 return 0;
1745                 }
1746                 if (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) {
1747                         /* probably only Xbox issue - all registers are read as zero */
1748                         val = snd_ac97_read(ac97, AC97_VENDOR_ID1);
1749                         if (val != 0 && val != 0xffff)
1750                                 return 0;
1751                 } else {
1752                         /* because the PCM or MASTER volume registers can be modified,
1753                          * the REC_GAIN register is used for tests
1754                          */
1755                         /* test if we can write to the record gain volume register */
1756                         snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a05);
1757                         if ((snd_ac97_read(ac97, AC97_REC_GAIN) & 0x7fff) == 0x0a05)
1758                                 return 0;
1759                 }
1760                 set_current_state(TASK_UNINTERRUPTIBLE);
1761                 schedule_timeout(1);
1762         } while (time_after_eq(end_time, jiffies));
1763         return -ENODEV;
1764 }
1765
1766 /**
1767  * snd_ac97_bus - create an AC97 bus component
1768  * @card: the card instance
1769  * @num: the bus number
1770  * @ops: the bus callbacks table
1771  * @private_data: private data pointer for the new instance
1772  * @rbus: the pointer to store the new AC97 bus instance.
1773  *
1774  * Creates an AC97 bus component.  An ac97_bus_t instance is newly
1775  * allocated and initialized.
1776  *
1777  * The ops table must include valid callbacks (at least read and
1778  * write).  The other callbacks, wait and reset, are not mandatory.
1779  *
1780  * The clock is set to 48000.  If another clock is needed, set
1781  * (*rbus)->clock manually.
1782  *
1783  * The AC97 bus instance is registered as a low-level device, so you don't
1784  * have to release it manually.
1785  *
1786  * Returns zero if successful, or a negative error code on failure.
1787  */
1788 int snd_ac97_bus(snd_card_t *card, int num, ac97_bus_ops_t *ops,
1789                  void *private_data, ac97_bus_t **rbus)
1790 {
1791         int err;
1792         ac97_bus_t *bus;
1793         static snd_device_ops_t dev_ops = {
1794                 .dev_free =     snd_ac97_bus_dev_free,
1795         };
1796
1797         snd_assert(card != NULL, return -EINVAL);
1798         snd_assert(rbus != NULL, return -EINVAL);
1799         bus = kcalloc(1, sizeof(*bus), GFP_KERNEL);
1800         if (bus == NULL)
1801                 return -ENOMEM;
1802         bus->card = card;
1803         bus->num = num;
1804         bus->ops = ops;
1805         bus->private_data = private_data;
1806         bus->clock = 48000;
1807         spin_lock_init(&bus->bus_lock);
1808         snd_ac97_bus_proc_init(bus);
1809         if ((err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops)) < 0) {
1810                 snd_ac97_bus_free(bus);
1811                 return err;
1812         }
1813         *rbus = bus;
1814         return 0;
1815 }
1816
1817 /* stop no dev release warning */
1818 static void ac97_device_release(struct device * dev)
1819 {
1820 }
1821
1822 /* register ac97 codec to bus */
1823 static int snd_ac97_dev_register(snd_device_t *device)
1824 {
1825         ac97_t *ac97 = device->device_data;
1826         int err;
1827
1828         ac97->dev.bus = &ac97_bus_type;
1829         ac97->dev.parent = ac97->bus->card->dev;
1830         ac97->dev.platform_data = ac97;
1831         ac97->dev.release = ac97_device_release;
1832         snprintf(ac97->dev.bus_id, BUS_ID_SIZE, "card%d-%d", ac97->bus->card->number, ac97->num);
1833         if ((err = device_register(&ac97->dev)) < 0) {
1834                 snd_printk(KERN_ERR "Can't register ac97 bus\n");
1835                 ac97->dev.bus = NULL;
1836                 return err;
1837         }
1838         return 0;
1839 }
1840
1841 /* unregister ac97 codec */
1842 static int snd_ac97_dev_unregister(snd_device_t *device)
1843 {
1844         ac97_t *ac97 = device->device_data;
1845         if (ac97->dev.bus)
1846                 device_unregister(&ac97->dev);
1847         return snd_ac97_free(ac97);
1848 }
1849
1850 /* build_ops to do nothing */
1851 static struct snd_ac97_build_ops null_build_ops;
1852
1853 /**
1854  * snd_ac97_mixer - create an Codec97 component
1855  * @bus: the AC97 bus which codec is attached to
1856  * @template: the template of ac97, including index, callbacks and
1857  *         the private data.
1858  * @rac97: the pointer to store the new ac97 instance.
1859  *
1860  * Creates an Codec97 component.  An ac97_t instance is newly
1861  * allocated and initialized from the template.  The codec
1862  * is then initialized by the standard procedure.
1863  *
1864  * The template must include the codec number (num) and address (addr),
1865  * and the private data (private_data).
1866  *
1867  * The ac97 instance is registered as a low-level device, so you don't
1868  * have to release it manually.
1869  *
1870  * Returns zero if successful, or a negative error code on failure.
1871  */
1872 int snd_ac97_mixer(ac97_bus_t *bus, ac97_template_t *template, ac97_t **rac97)
1873 {
1874         int err;
1875         ac97_t *ac97;
1876         snd_card_t *card;
1877         char name[64];
1878         unsigned long end_time;
1879         unsigned int reg;
1880         const ac97_codec_id_t *pid;
1881         static snd_device_ops_t ops = {
1882                 .dev_free =     snd_ac97_dev_free,
1883                 .dev_register = snd_ac97_dev_register,
1884                 .dev_unregister =       snd_ac97_dev_unregister,
1885         };
1886
1887         snd_assert(rac97 != NULL, return -EINVAL);
1888         *rac97 = NULL;
1889         snd_assert(bus != NULL && template != NULL, return -EINVAL);
1890         snd_assert(template->num < 4 && bus->codec[template->num] == NULL, return -EINVAL);
1891
1892         snd_assert(bus->shared_type <= AC97_SHARED_TYPES, return -EINVAL);
1893         if (bus->shared_type) {
1894                 /* already shared? */
1895                 down(&shared_codec_mutex);
1896                 ac97 = shared_codec[bus->shared_type-1][template->num];
1897                 if (ac97) {
1898                         if ((ac97_is_audio(ac97) && (template->scaps & AC97_SCAP_SKIP_AUDIO)) ||
1899                             (ac97_is_modem(ac97) && (template->scaps & AC97_SCAP_SKIP_MODEM))) {
1900                                 up(&shared_codec_mutex);
1901                                 return -EACCES; /* skip this */
1902                         }
1903                 }
1904                 up(&shared_codec_mutex);
1905         }
1906
1907         card = bus->card;
1908         ac97 = kcalloc(1, sizeof(*ac97), GFP_KERNEL);
1909         if (ac97 == NULL)
1910                 return -ENOMEM;
1911         ac97->private_data = template->private_data;
1912         ac97->private_free = template->private_free;
1913         ac97->bus = bus;
1914         ac97->pci = template->pci;
1915         ac97->num = template->num;
1916         ac97->addr = template->addr;
1917         ac97->scaps = template->scaps;
1918         ac97->limited_regs = template->limited_regs;
1919         memcpy(ac97->reg_accessed, template->reg_accessed, sizeof(ac97->reg_accessed));
1920         bus->codec[ac97->num] = ac97;
1921         init_MUTEX(&ac97->reg_mutex);
1922         init_MUTEX(&ac97->page_mutex);
1923
1924         if (ac97->pci) {
1925                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_VENDOR_ID, &ac97->subsystem_vendor);
1926                 pci_read_config_word(ac97->pci, PCI_SUBSYSTEM_ID, &ac97->subsystem_device);
1927         }
1928         if (bus->ops->reset) {
1929                 bus->ops->reset(ac97);
1930                 goto __access_ok;
1931         }
1932
1933         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1934         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1935         if (ac97->id && ac97->id != (unsigned int)-1) {
1936                 pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1937                 if (pid && (pid->flags & AC97_DEFAULT_POWER_OFF))
1938                         goto __access_ok;
1939         }
1940
1941         /* reset to defaults */
1942         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO))
1943                 snd_ac97_write(ac97, AC97_RESET, 0);
1944         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM))
1945                 snd_ac97_write(ac97, AC97_EXTENDED_MID, 0);
1946         if (bus->ops->wait)
1947                 bus->ops->wait(ac97);
1948         else {
1949                 udelay(50);
1950                 if (ac97->scaps & AC97_SCAP_SKIP_AUDIO)
1951                         err = ac97_reset_wait(ac97, HZ/2, 1);
1952                 else {
1953                         err = ac97_reset_wait(ac97, HZ/2, 0);
1954                         if (err < 0)
1955                                 err = ac97_reset_wait(ac97, HZ/2, 1);
1956                 }
1957                 if (err < 0) {
1958                         snd_printk(KERN_WARNING "AC'97 %d does not respond - RESET\n", ac97->num);
1959                         /* proceed anyway - it's often non-critical */
1960                 }
1961         }
1962       __access_ok:
1963         ac97->id = snd_ac97_read(ac97, AC97_VENDOR_ID1) << 16;
1964         ac97->id |= snd_ac97_read(ac97, AC97_VENDOR_ID2);
1965         if (! (ac97->scaps & AC97_SCAP_DETECT_BY_VENDOR) &&
1966             (ac97->id == 0x00000000 || ac97->id == 0xffffffff)) {
1967                 snd_printk(KERN_ERR "AC'97 %d access is not valid [0x%x], removing mixer.\n", ac97->num, ac97->id);
1968                 snd_ac97_free(ac97);
1969                 return -EIO;
1970         }
1971         pid = look_for_codec_id(snd_ac97_codec_ids, ac97->id);
1972         if (pid)
1973                 ac97->flags |= pid->flags;
1974
1975         /* test for AC'97 */
1976         if (!(ac97->scaps & AC97_SCAP_SKIP_AUDIO) && !(ac97->scaps & AC97_SCAP_AUDIO)) {
1977                 /* test if we can write to the record gain volume register */
1978                 snd_ac97_write_cache(ac97, AC97_REC_GAIN, 0x8a06);
1979                 if (((err = snd_ac97_read(ac97, AC97_REC_GAIN)) & 0x7fff) == 0x0a06)
1980                         ac97->scaps |= AC97_SCAP_AUDIO;
1981         }
1982         if (ac97->scaps & AC97_SCAP_AUDIO) {
1983                 ac97->caps = snd_ac97_read(ac97, AC97_RESET);
1984                 ac97->ext_id = snd_ac97_read(ac97, AC97_EXTENDED_ID);
1985                 if (ac97->ext_id == 0xffff)     /* invalid combination */
1986                         ac97->ext_id = 0;
1987         }
1988
1989         /* test for MC'97 */
1990         if (!(ac97->scaps & AC97_SCAP_SKIP_MODEM) && !(ac97->scaps & AC97_SCAP_MODEM)) {
1991                 ac97->ext_mid = snd_ac97_read(ac97, AC97_EXTENDED_MID);
1992                 if (ac97->ext_mid == 0xffff)    /* invalid combination */
1993                         ac97->ext_mid = 0;
1994                 if (ac97->ext_mid & 1)
1995                         ac97->scaps |= AC97_SCAP_MODEM;
1996         }
1997
1998         if (!ac97_is_audio(ac97) && !ac97_is_modem(ac97)) {
1999                 if (!(ac97->scaps & (AC97_SCAP_SKIP_AUDIO|AC97_SCAP_SKIP_MODEM)))
2000                         snd_printk(KERN_ERR "AC'97 %d access error (not audio or modem codec)\n", ac97->num);
2001                 snd_ac97_free(ac97);
2002                 return -EACCES;
2003         }
2004
2005         if (bus->ops->reset) // FIXME: always skipping?
2006                 goto __ready_ok;
2007
2008         /* FIXME: add powerdown control */
2009         if (ac97_is_audio(ac97)) {
2010                 /* nothing should be in powerdown mode */
2011                 snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2012                 if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2013                         snd_ac97_write_cache(ac97, AC97_RESET, 0); /* reset to defaults */
2014                         udelay(100);
2015                         snd_ac97_write_cache(ac97, AC97_POWERDOWN, 0);
2016                 }
2017                 /* nothing should be in powerdown mode */
2018                 snd_ac97_write_cache(ac97, AC97_GENERAL_PURPOSE, 0);
2019                 end_time = jiffies + (HZ / 10);
2020                 do {
2021                         if ((snd_ac97_read(ac97, AC97_POWERDOWN) & 0x0f) == 0x0f)
2022                                 goto __ready_ok;
2023                         set_current_state(TASK_UNINTERRUPTIBLE);
2024                         schedule_timeout(1);
2025                 } while (time_after_eq(end_time, jiffies));
2026                 snd_printk(KERN_WARNING "AC'97 %d analog subsections not ready\n", ac97->num);
2027         }
2028
2029         /* FIXME: add powerdown control */
2030         if (ac97_is_modem(ac97)) {
2031                 unsigned char tmp;
2032
2033                 /* nothing should be in powerdown mode */
2034                 /* note: it's important to set the rate at first */
2035                 tmp = AC97_MEA_GPIO;
2036                 if (ac97->ext_mid & AC97_MEI_LINE1) {
2037                         snd_ac97_write_cache(ac97, AC97_LINE1_RATE, 8000);
2038                         tmp |= AC97_MEA_ADC1 | AC97_MEA_DAC1;
2039                 }
2040                 if (ac97->ext_mid & AC97_MEI_LINE2) {
2041                         snd_ac97_write_cache(ac97, AC97_LINE2_RATE, 8000);
2042                         tmp |= AC97_MEA_ADC2 | AC97_MEA_DAC2;
2043                 }
2044                 if (ac97->ext_mid & AC97_MEI_HANDSET) {
2045                         snd_ac97_write_cache(ac97, AC97_HANDSET_RATE, 8000);
2046                         tmp |= AC97_MEA_HADC | AC97_MEA_HDAC;
2047                 }
2048                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2049                 udelay(100);
2050                 /* nothing should be in powerdown mode */
2051                 snd_ac97_write_cache(ac97, AC97_EXTENDED_MSTATUS, 0);
2052                 end_time = jiffies + (HZ / 10);
2053                 do {
2054                         if ((snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS) & tmp) == tmp)
2055                                 goto __ready_ok;
2056                         set_current_state(TASK_UNINTERRUPTIBLE);
2057                         schedule_timeout(1);
2058                 } while (time_after_eq(end_time, jiffies));
2059                 snd_printk(KERN_WARNING "MC'97 %d converters and GPIO not ready (0x%x)\n", ac97->num, snd_ac97_read(ac97, AC97_EXTENDED_MSTATUS));
2060         }
2061
2062       __ready_ok:
2063         if (ac97_is_audio(ac97))
2064                 ac97->addr = (ac97->ext_id & AC97_EI_ADDR_MASK) >> AC97_EI_ADDR_SHIFT;
2065         else
2066                 ac97->addr = (ac97->ext_mid & AC97_MEI_ADDR_MASK) >> AC97_MEI_ADDR_SHIFT;
2067         if (ac97->ext_id & 0x01c9) {    /* L/R, MIC, SDAC, LDAC VRA support */
2068                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2069                 reg |= ac97->ext_id & 0x01c0; /* LDAC/SDAC/CDAC */
2070                 if (! bus->no_vra)
2071                         reg |= ac97->ext_id & 0x0009; /* VRA/VRM */
2072                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2073         }
2074         if ((ac97->ext_id & AC97_EI_DRA) && bus->dra) {
2075                 /* Intel controllers require double rate data to be put in
2076                  * slots 7+8, so let's hope the codec supports it. */
2077                 snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE, AC97_GP_DRSS_MASK, AC97_GP_DRSS_78);
2078                 if ((snd_ac97_read(ac97, AC97_GENERAL_PURPOSE) & AC97_GP_DRSS_MASK) == AC97_GP_DRSS_78)
2079                         ac97->flags |= AC97_DOUBLE_RATE;
2080         }
2081         if (ac97->ext_id & AC97_EI_VRA) {       /* VRA support */
2082                 snd_ac97_determine_rates(ac97, AC97_PCM_FRONT_DAC_RATE, 0, &ac97->rates[AC97_RATES_FRONT_DAC]);
2083                 snd_ac97_determine_rates(ac97, AC97_PCM_LR_ADC_RATE, 0, &ac97->rates[AC97_RATES_ADC]);
2084         } else {
2085                 ac97->rates[AC97_RATES_FRONT_DAC] = SNDRV_PCM_RATE_48000;
2086                 if (ac97->flags & AC97_DOUBLE_RATE)
2087                         ac97->rates[AC97_RATES_FRONT_DAC] |= SNDRV_PCM_RATE_96000;
2088                 ac97->rates[AC97_RATES_ADC] = SNDRV_PCM_RATE_48000;
2089         }
2090         if (ac97->ext_id & AC97_EI_SPDIF) {
2091                 /* codec specific code (patch) should override these values */
2092                 ac97->rates[AC97_RATES_SPDIF] = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000;
2093         }
2094         if (ac97->ext_id & AC97_EI_VRM) {       /* MIC VRA support */
2095                 snd_ac97_determine_rates(ac97, AC97_PCM_MIC_ADC_RATE, 0, &ac97->rates[AC97_RATES_MIC_ADC]);
2096         } else {
2097                 ac97->rates[AC97_RATES_MIC_ADC] = SNDRV_PCM_RATE_48000;
2098         }
2099         if (ac97->ext_id & AC97_EI_SDAC) {      /* SDAC support */
2100                 snd_ac97_determine_rates(ac97, AC97_PCM_SURR_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_SURR_DAC]);
2101                 ac97->scaps |= AC97_SCAP_SURROUND_DAC;
2102         }
2103         if (ac97->ext_id & AC97_EI_LDAC) {      /* LDAC support */
2104                 snd_ac97_determine_rates(ac97, AC97_PCM_LFE_DAC_RATE, AC97_PCM_FRONT_DAC_RATE, &ac97->rates[AC97_RATES_LFE_DAC]);
2105                 ac97->scaps |= AC97_SCAP_CENTER_LFE_DAC;
2106         }
2107         /* additional initializations */
2108         if (bus->ops->init)
2109                 bus->ops->init(ac97);
2110         snd_ac97_get_name(ac97, ac97->id, name, !ac97_is_audio(ac97));
2111         snd_ac97_get_name(NULL, ac97->id, name, !ac97_is_audio(ac97));  // ac97->id might be changed in the special setup code
2112         if (! ac97->build_ops)
2113                 ac97->build_ops = &null_build_ops;
2114
2115         if (ac97_is_audio(ac97)) {
2116                 char comp[16];
2117                 if (card->mixername[0] == '\0') {
2118                         strcpy(card->mixername, name);
2119                 } else {
2120                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2121                                 strcat(card->mixername, ",");
2122                                 strcat(card->mixername, name);
2123                         }
2124                 }
2125                 sprintf(comp, "AC97a:%08x", ac97->id);
2126                 if ((err = snd_component_add(card, comp)) < 0) {
2127                         snd_ac97_free(ac97);
2128                         return err;
2129                 }
2130                 if (snd_ac97_mixer_build(ac97) < 0) {
2131                         snd_ac97_free(ac97);
2132                         return -ENOMEM;
2133                 }
2134         }
2135         if (ac97_is_modem(ac97)) {
2136                 char comp[16];
2137                 if (card->mixername[0] == '\0') {
2138                         strcpy(card->mixername, name);
2139                 } else {
2140                         if (strlen(card->mixername) + 1 + strlen(name) + 1 <= sizeof(card->mixername)) {
2141                                 strcat(card->mixername, ",");
2142                                 strcat(card->mixername, name);
2143                         }
2144                 }
2145                 sprintf(comp, "AC97m:%08x", ac97->id);
2146                 if ((err = snd_component_add(card, comp)) < 0) {
2147                         snd_ac97_free(ac97);
2148                         return err;
2149                 }
2150                 if (snd_ac97_modem_build(card, ac97) < 0) {
2151                         snd_ac97_free(ac97);
2152                         return -ENOMEM;
2153                 }
2154         }
2155         /* make sure the proper powerdown bits are cleared */
2156         if (ac97->scaps) {
2157                 reg = snd_ac97_read(ac97, AC97_EXTENDED_STATUS);
2158                 if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
2159                         reg &= ~AC97_EA_PRJ;
2160                 if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
2161                         reg &= ~(AC97_EA_PRI | AC97_EA_PRK);
2162                 snd_ac97_write_cache(ac97, AC97_EXTENDED_STATUS, reg);
2163         }
2164         snd_ac97_proc_init(ac97);
2165         if ((err = snd_device_new(card, SNDRV_DEV_CODEC, ac97, &ops)) < 0) {
2166                 snd_ac97_free(ac97);
2167                 return err;
2168         }
2169         *rac97 = ac97;
2170
2171         if (bus->shared_type) {
2172                 down(&shared_codec_mutex);
2173                 shared_codec[bus->shared_type-1][ac97->num] = ac97;
2174                 up(&shared_codec_mutex);
2175         }
2176
2177         return 0;
2178 }
2179
2180
2181 /*
2182  * Power down the chip.
2183  *
2184  * MASTER and HEADPHONE registers are muted but the register cache values
2185  * are not changed, so that the values can be restored in snd_ac97_resume().
2186  */
2187 static void snd_ac97_powerdown(ac97_t *ac97)
2188 {
2189         unsigned short power;
2190
2191         if (ac97_is_audio(ac97)) {
2192                 /* some codecs have stereo mute bits */
2193                 snd_ac97_write(ac97, AC97_MASTER, 0x9f9f);
2194                 snd_ac97_write(ac97, AC97_HEADPHONE, 0x9f9f);
2195         }
2196
2197         power = ac97->regs[AC97_POWERDOWN] | 0x8000;    /* EAPD */
2198         power |= 0x4000;        /* Headphone amplifier powerdown */
2199         power |= 0x0300;        /* ADC & DAC powerdown */
2200         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2201         udelay(100);
2202         power |= 0x0400;        /* Analog Mixer powerdown (Vref on) */
2203         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2204         udelay(100);
2205 #if 0
2206         /* FIXME: this causes click noises on some boards at resume */
2207         power |= 0x3800;        /* AC-link powerdown, internal Clk disable */
2208         snd_ac97_write(ac97, AC97_POWERDOWN, power);
2209 #endif
2210 }
2211
2212
2213 #ifdef CONFIG_PM
2214 /**
2215  * snd_ac97_suspend - General suspend function for AC97 codec
2216  * @ac97: the ac97 instance
2217  *
2218  * Suspends the codec, power down the chip.
2219  */
2220 void snd_ac97_suspend(ac97_t *ac97)
2221 {
2222         if (ac97->build_ops->suspend)
2223                 ac97->build_ops->suspend(ac97);
2224         snd_ac97_powerdown(ac97);
2225 }
2226
2227 /*
2228  * restore ac97 status
2229  */
2230 void snd_ac97_restore_status(ac97_t *ac97)
2231 {
2232         int i;
2233
2234         for (i = 2; i < 0x7c ; i += 2) {
2235                 if (i == AC97_POWERDOWN || i == AC97_EXTENDED_ID)
2236                         continue;
2237                 /* restore only accessible registers
2238                  * some chip (e.g. nm256) may hang up when unsupported registers
2239                  * are accessed..!
2240                  */
2241                 if (test_bit(i, ac97->reg_accessed)) {
2242                         snd_ac97_write(ac97, i, ac97->regs[i]);
2243                         snd_ac97_read(ac97, i);
2244                 }
2245         }
2246 }
2247
2248 /*
2249  * restore IEC958 status
2250  */
2251 void snd_ac97_restore_iec958(ac97_t *ac97)
2252 {
2253         if (ac97->ext_id & AC97_EI_SPDIF) {
2254                 if (ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_SPDIF) {
2255                         /* reset spdif status */
2256                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
2257                         snd_ac97_write(ac97, AC97_EXTENDED_STATUS, ac97->regs[AC97_EXTENDED_STATUS]);
2258                         if (ac97->flags & AC97_CS_SPDIF)
2259                                 snd_ac97_write(ac97, AC97_CSR_SPDIF, ac97->regs[AC97_CSR_SPDIF]);
2260                         else
2261                                 snd_ac97_write(ac97, AC97_SPDIF, ac97->regs[AC97_SPDIF]);
2262                         snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF); /* turn on again */
2263                 }
2264         }
2265 }
2266
2267 /**
2268  * snd_ac97_resume - General resume function for AC97 codec
2269  * @ac97: the ac97 instance
2270  *
2271  * Do the standard resume procedure, power up and restoring the
2272  * old register values.
2273  */
2274 void snd_ac97_resume(ac97_t *ac97)
2275 {
2276         unsigned long end_time;
2277
2278         if (ac97->bus->ops->reset) {
2279                 ac97->bus->ops->reset(ac97);
2280                 goto  __reset_ready;
2281         }
2282
2283         snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2284         if (! (ac97->flags & AC97_DEFAULT_POWER_OFF)) {
2285                 snd_ac97_write(ac97, AC97_RESET, 0);
2286                 udelay(100);
2287                 snd_ac97_write(ac97, AC97_POWERDOWN, 0);
2288         }
2289         snd_ac97_write(ac97, AC97_GENERAL_PURPOSE, 0);
2290
2291         snd_ac97_write(ac97, AC97_POWERDOWN, ac97->regs[AC97_POWERDOWN]);
2292         if (ac97_is_audio(ac97)) {
2293                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8101);
2294                 end_time = jiffies + msecs_to_jiffies(100);
2295                 do {
2296                         if (snd_ac97_read(ac97, AC97_MASTER) == 0x8101)
2297                                 break;
2298                         set_current_state(TASK_UNINTERRUPTIBLE);
2299                         schedule_timeout(1);
2300                 } while (time_after_eq(end_time, jiffies));
2301                 /* FIXME: extra delay */
2302                 ac97->bus->ops->write(ac97, AC97_MASTER, 0x8000);
2303                 if (snd_ac97_read(ac97, AC97_MASTER) != 0x8000)
2304                         msleep(250);
2305         } else {
2306                 end_time = jiffies + msecs_to_jiffies(100);
2307                 do {
2308                         unsigned short val = snd_ac97_read(ac97, AC97_EXTENDED_MID);
2309                         if (val != 0xffff && (val & 1) != 0)
2310                                 break;
2311                         set_current_state(TASK_UNINTERRUPTIBLE);
2312                         schedule_timeout(1);
2313                 } while (time_after_eq(end_time, jiffies));
2314         }
2315 __reset_ready:
2316
2317         if (ac97->bus->ops->init)
2318                 ac97->bus->ops->init(ac97);
2319
2320         if (ac97->build_ops->resume)
2321                 ac97->build_ops->resume(ac97);
2322         else {
2323                 snd_ac97_restore_status(ac97);
2324                 snd_ac97_restore_iec958(ac97);
2325         }
2326 }
2327 #endif
2328
2329
2330 /*
2331  * Hardware tuning
2332  */
2333 static void set_ctl_name(char *dst, const char *src, const char *suffix)
2334 {
2335         if (suffix)
2336                 sprintf(dst, "%s %s", src, suffix);
2337         else
2338                 strcpy(dst, src);
2339 }
2340
2341 /* remove the control with the given name and optional suffix */
2342 int snd_ac97_remove_ctl(ac97_t *ac97, const char *name, const char *suffix)
2343 {
2344         snd_ctl_elem_id_t id;
2345         memset(&id, 0, sizeof(id));
2346         set_ctl_name(id.name, name, suffix);
2347         id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2348         return snd_ctl_remove_id(ac97->bus->card, &id);
2349 }
2350
2351 static snd_kcontrol_t *ctl_find(ac97_t *ac97, const char *name, const char *suffix)
2352 {
2353         snd_ctl_elem_id_t sid;
2354         memset(&sid, 0, sizeof(sid));
2355         set_ctl_name(sid.name, name, suffix);
2356         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
2357         return snd_ctl_find_id(ac97->bus->card, &sid);
2358 }
2359
2360 /* rename the control with the given name and optional suffix */
2361 int snd_ac97_rename_ctl(ac97_t *ac97, const char *src, const char *dst, const char *suffix)
2362 {
2363         snd_kcontrol_t *kctl = ctl_find(ac97, src, suffix);
2364         if (kctl) {
2365                 set_ctl_name(kctl->id.name, dst, suffix);
2366                 return 0;
2367         }
2368         return -ENOENT;
2369 }
2370
2371 /* rename both Volume and Switch controls - don't check the return value */
2372 void snd_ac97_rename_vol_ctl(ac97_t *ac97, const char *src, const char *dst)
2373 {
2374         snd_ac97_rename_ctl(ac97, src, dst, "Switch");
2375         snd_ac97_rename_ctl(ac97, src, dst, "Volume");
2376 }
2377
2378 /* swap controls */
2379 int snd_ac97_swap_ctl(ac97_t *ac97, const char *s1, const char *s2, const char *suffix)
2380 {
2381         snd_kcontrol_t *kctl1, *kctl2;
2382         kctl1 = ctl_find(ac97, s1, suffix);
2383         kctl2 = ctl_find(ac97, s2, suffix);
2384         if (kctl1 && kctl2) {
2385                 set_ctl_name(kctl1->id.name, s2, suffix);
2386                 set_ctl_name(kctl2->id.name, s1, suffix);
2387                 return 0;
2388         }
2389         return -ENOENT;
2390 }
2391
2392 #if 1
2393 /* bind hp and master controls instead of using only hp control */
2394 static int bind_hp_volsw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2395 {
2396         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2397         if (err > 0) {
2398                 unsigned long priv_saved = kcontrol->private_value;
2399                 kcontrol->private_value = (kcontrol->private_value & ~0xff) | AC97_HEADPHONE;
2400                 snd_ac97_put_volsw(kcontrol, ucontrol);
2401                 kcontrol->private_value = priv_saved;
2402         }
2403         return err;
2404 }
2405
2406 /* ac97 tune: bind Master and Headphone controls */
2407 static int tune_hp_only(ac97_t *ac97)
2408 {
2409         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2410         snd_kcontrol_t *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
2411         if (! msw || ! mvol)
2412                 return -ENOENT;
2413         msw->put = bind_hp_volsw_put;
2414         mvol->put = bind_hp_volsw_put;
2415         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
2416         snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
2417         return 0;
2418 }
2419
2420 #else
2421 /* ac97 tune: use Headphone control as master */
2422 static int tune_hp_only(ac97_t *ac97)
2423 {
2424         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2425                 return -ENOENT;
2426         snd_ac97_remove_ctl(ac97, "Master Playback", "Switch");
2427         snd_ac97_remove_ctl(ac97, "Master Playback", "Volume");
2428         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2429         return 0;
2430 }
2431 #endif
2432
2433 /* ac97 tune: swap Headphone and Master controls */
2434 static int tune_swap_hp(ac97_t *ac97)
2435 {
2436         if (ctl_find(ac97, "Headphone Playback Switch", NULL) == NULL)
2437                 return -ENOENT;
2438         snd_ac97_rename_vol_ctl(ac97, "Master Playback", "Line-Out Playback");
2439         snd_ac97_rename_vol_ctl(ac97, "Headphone Playback", "Master Playback");
2440         return 0;
2441 }
2442
2443 /* ac97 tune: swap Surround and Master controls */
2444 static int tune_swap_surround(ac97_t *ac97)
2445 {
2446         if (snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Switch") ||
2447             snd_ac97_swap_ctl(ac97, "Master Playback", "Surround Playback", "Volume"))
2448                 return -ENOENT;
2449         return 0;
2450 }
2451
2452 /* ac97 tune: set up mic sharing for AD codecs */
2453 static int tune_ad_sharing(ac97_t *ac97)
2454 {
2455         unsigned short scfg;
2456         if ((ac97->id & 0xffffff00) != 0x41445300) {
2457                 snd_printk(KERN_ERR "ac97_quirk AD_SHARING is only for AD codecs\n");
2458                 return -EINVAL;
2459         }
2460         /* Turn on OMS bit to route microphone to back panel */
2461         scfg = snd_ac97_read(ac97, AC97_AD_SERIAL_CFG);
2462         snd_ac97_write_cache(ac97, AC97_AD_SERIAL_CFG, scfg | 0x0200);
2463         return 0;
2464 }
2465
2466 static const snd_kcontrol_new_t snd_ac97_alc_jack_detect =
2467 AC97_SINGLE("Jack Detect", AC97_ALC650_CLOCK, 5, 1, 0);
2468
2469 /* ac97 tune: set up ALC jack-select */
2470 static int tune_alc_jack(ac97_t *ac97)
2471 {
2472         if ((ac97->id & 0xffffff00) != 0x414c4700) {
2473                 snd_printk(KERN_ERR "ac97_quirk ALC_JACK is only for Realtek codecs\n");
2474                 return -EINVAL;
2475         }
2476         snd_ac97_update_bits(ac97, 0x7a, 0x20, 0x20); /* select jack detect function */
2477         snd_ac97_update_bits(ac97, 0x7a, 0x01, 0x01); /* Line-out auto mute */
2478         return snd_ctl_add(ac97->bus->card, snd_ac97_cnew(&snd_ac97_alc_jack_detect, ac97));
2479 }
2480
2481 /* ac97 tune: inversed EAPD bit */
2482 static int tune_inv_eapd(ac97_t *ac97)
2483 {
2484         snd_kcontrol_t *kctl = ctl_find(ac97, "External Amplifier", NULL);
2485         if (! kctl)
2486                 return -ENOENT;
2487         set_inv_eapd(ac97, kctl);
2488         return 0;
2489 }
2490
2491 static int master_mute_sw_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
2492 {
2493         int err = snd_ac97_put_volsw(kcontrol, ucontrol);
2494         if (err > 0) {
2495                 ac97_t *ac97 = snd_kcontrol_chip(kcontrol);
2496                 int shift = (kcontrol->private_value >> 8) & 0x0f;
2497                 int rshift = (kcontrol->private_value >> 12) & 0x0f;
2498                 unsigned short mask;
2499                 if (shift != rshift)
2500                         mask = 0x8080;
2501                 else
2502                         mask = 0x8000;
2503                 snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
2504                                      (ac97->regs[AC97_MASTER] & mask) == mask ?
2505                                      0x8000 : 0);
2506         }
2507         return err;
2508 }
2509
2510 /* ac97 tune: EAPD controls mute LED bound with the master mute */
2511 static int tune_mute_led(ac97_t *ac97)
2512 {
2513         snd_kcontrol_t *msw = ctl_find(ac97, "Master Playback Switch", NULL);
2514         if (! msw)
2515                 return -ENOENT;
2516         msw->put = master_mute_sw_put;
2517         snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
2518         snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
2519         return 0;
2520 }
2521
2522 struct quirk_table {
2523         const char *name;
2524         int (*func)(ac97_t *);
2525 };
2526
2527 static struct quirk_table applicable_quirks[] = {
2528         { "none", NULL },
2529         { "hp_only", tune_hp_only },
2530         { "swap_hp", tune_swap_hp },
2531         { "swap_surround", tune_swap_surround },
2532         { "ad_sharing", tune_ad_sharing },
2533         { "alc_jack", tune_alc_jack },
2534         { "inv_eapd", tune_inv_eapd },
2535         { "mute_led", tune_mute_led },
2536 };
2537
2538 /* apply the quirk with the given type */
2539 static int apply_quirk(ac97_t *ac97, int type)
2540 {
2541         if (type <= 0)
2542                 return 0;
2543         else if (type >= ARRAY_SIZE(applicable_quirks))
2544                 return -EINVAL;
2545         if (applicable_quirks[type].func)
2546                 return applicable_quirks[type].func(ac97);
2547         return 0;
2548 }
2549
2550 /* apply the quirk with the given name */
2551 static int apply_quirk_str(ac97_t *ac97, const char *typestr)
2552 {
2553         int i;
2554         struct quirk_table *q;
2555
2556         for (i = 0; i < ARRAY_SIZE(applicable_quirks); i++) {
2557                 q = &applicable_quirks[i];
2558                 if (q->name && ! strcmp(typestr, q->name))
2559                         return apply_quirk(ac97, i);
2560         }
2561         /* for compatibility, accept the numbers, too */
2562         if (*typestr >= '0' && *typestr <= '9')
2563                 return apply_quirk(ac97, (int)simple_strtoul(typestr, NULL, 10));
2564         return -EINVAL;
2565 }
2566
2567 /**
2568  * snd_ac97_tune_hardware - tune up the hardware
2569  * @ac97: the ac97 instance
2570  * @quirk: quirk list
2571  * @override: explicit quirk value (overrides the list if non-NULL)
2572  *
2573  * Do some workaround for each pci device, such as renaming of the
2574  * headphone (true line-out) control as "Master".
2575  * The quirk-list must be terminated with a zero-filled entry.
2576  *
2577  * Returns zero if successful, or a negative error code on failure.
2578  */
2579
2580 int snd_ac97_tune_hardware(ac97_t *ac97, struct ac97_quirk *quirk, const char *override)
2581 {
2582         int result;
2583
2584         /* quirk overriden? */
2585         if (override && strcmp(override, "-1") && strcmp(override, "default")) {
2586                 result = apply_quirk_str(ac97, override);
2587                 if (result < 0)
2588                         snd_printk(KERN_ERR "applying quirk type %s failed (%d)\n", override, result);
2589                 return result;
2590         }
2591
2592         if (! quirk)
2593                 return -EINVAL;
2594
2595         for (; quirk->subvendor; quirk++) {
2596                 if (quirk->subvendor != ac97->subsystem_vendor)
2597                         continue;
2598                 if ((! quirk->mask && quirk->subdevice == ac97->subsystem_device) ||
2599                     quirk->subdevice == (quirk->mask & ac97->subsystem_device)) {
2600                         if (quirk->codec_id && quirk->codec_id != ac97->id)
2601                                 continue;
2602                         snd_printdd("ac97 quirk for %s (%04x:%04x)\n", quirk->name, ac97->subsystem_vendor, ac97->subsystem_device);
2603                         result = apply_quirk(ac97, quirk->type);
2604                         if (result < 0)
2605                                 snd_printk(KERN_ERR "applying quirk type %d for %s failed (%d)\n", quirk->type, quirk->name, result);
2606                         return result;
2607                 }
2608         }
2609         return 0;
2610 }
2611
2612
2613 /*
2614  *  Exported symbols
2615  */
2616
2617 EXPORT_SYMBOL(snd_ac97_write);
2618 EXPORT_SYMBOL(snd_ac97_read);
2619 EXPORT_SYMBOL(snd_ac97_write_cache);
2620 EXPORT_SYMBOL(snd_ac97_update);
2621 EXPORT_SYMBOL(snd_ac97_update_bits);
2622 EXPORT_SYMBOL(snd_ac97_get_short_name);
2623 EXPORT_SYMBOL(snd_ac97_bus);
2624 EXPORT_SYMBOL(snd_ac97_mixer);
2625 EXPORT_SYMBOL(snd_ac97_pcm_assign);
2626 EXPORT_SYMBOL(snd_ac97_pcm_open);
2627 EXPORT_SYMBOL(snd_ac97_pcm_close);
2628 EXPORT_SYMBOL(snd_ac97_pcm_double_rate_rules);
2629 EXPORT_SYMBOL(snd_ac97_tune_hardware);
2630 EXPORT_SYMBOL(snd_ac97_set_rate);
2631 #ifdef CONFIG_PM
2632 EXPORT_SYMBOL(snd_ac97_resume);
2633 EXPORT_SYMBOL(snd_ac97_suspend);
2634 #endif
2635
2636 /*
2637  *  INIT part
2638  */
2639
2640 static int __init alsa_ac97_init(void)
2641 {
2642         return 0;
2643 }
2644
2645 static void __exit alsa_ac97_exit(void)
2646 {
2647 }
2648
2649 module_init(alsa_ac97_init)
2650 module_exit(alsa_ac97_exit)