sound/ppc/tumbler.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * PMac Tumbler/Snapper lowlevel functions
   4  *
   5  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
   6  *
   7  *   Rene Rebe <rene.rebe@gmx.net>:
   8  *     * update from shadow registers on wakeup and headphone plug
   9  *     * automatically toggle DRC on headphone plug
  10  */
  11
  12
  13 #include <linux/init.h>
  14 #include <linux/delay.h>
  15 #include <linux/i2c.h>
  16 #include <linux/kmod.h>
  17 #include <linux/slab.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/string.h>
  20 #include <linux/of_irq.h>
  21 #include <linux/io.h>
  22 #include <sound/core.h>
  23 #include <asm/irq.h>
  24 #include <asm/machdep.h>
  25 #include <asm/pmac_feature.h>
  26 #include "pmac.h"
  27 #include "tumbler_volume.h"
  28
  29 #undef DEBUG
  30
  31 #ifdef DEBUG
  32 #define DBG(fmt...) printk(KERN_DEBUG fmt)
  33 #else
  34 #define DBG(fmt...)
  35 #endif
  36
  37 #define IS_G4DA (of_machine_is_compatible("PowerMac3,4"))
  38
  39 /* i2c address for tumbler */
  40 #define TAS_I2C_ADDR    0x34
  41
  42 /* registers */
  43 #define TAS_REG_MCS     0x01    /* main control */
  44 #define TAS_REG_DRC     0x02
  45 #define TAS_REG_VOL     0x04
  46 #define TAS_REG_TREBLE  0x05
  47 #define TAS_REG_BASS    0x06
  48 #define TAS_REG_INPUT1  0x07
  49 #define TAS_REG_INPUT2  0x08
  50
  51 /* tas3001c */
  52 #define TAS_REG_PCM     TAS_REG_INPUT1
  53
  54 /* tas3004 */
  55 #define TAS_REG_LMIX    TAS_REG_INPUT1
  56 #define TAS_REG_RMIX    TAS_REG_INPUT2
  57 #define TAS_REG_MCS2    0x43            /* main control 2 */
  58 #define TAS_REG_ACS     0x40            /* analog control */
  59
  60 /* mono volumes for tas3001c/tas3004 */
  61 enum {
  62         VOL_IDX_PCM_MONO, /* tas3001c only */
  63         VOL_IDX_BASS, VOL_IDX_TREBLE,
  64         VOL_IDX_LAST_MONO
  65 };
  66
  67 /* stereo volumes for tas3004 */
  68 enum {
  69         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
  70         VOL_IDX_LAST_MIX
  71 };
  72
  73 struct pmac_gpio {
  74         unsigned int addr;
  75         u8 active_val;
  76         u8 inactive_val;
  77         u8 active_state;
  78 };
  79
  80 struct pmac_tumbler {
  81         struct pmac_keywest i2c;
  82         struct pmac_gpio audio_reset;
  83         struct pmac_gpio amp_mute;
  84         struct pmac_gpio line_mute;
  85         struct pmac_gpio line_detect;
  86         struct pmac_gpio hp_mute;
  87         struct pmac_gpio hp_detect;
  88         int headphone_irq;
  89         int lineout_irq;
  90         unsigned int save_master_vol[2];
  91         unsigned int master_vol[2];
  92         unsigned int save_master_switch[2];
  93         unsigned int master_switch[2];
  94         unsigned int mono_vol[VOL_IDX_LAST_MONO];
  95         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
  96         int drc_range;
  97         int drc_enable;
  98         int capture_source;
  99         int anded_reset;
 100         int auto_mute_notify;
 101         int reset_on_sleep;
 102         u8  acs;
 103 };
 104
 105
 106 /*
 107  */
 108
 109 static int send_init_client(struct pmac_keywest *i2c, const unsigned int *regs)
 110 {
 111         while (*regs > 0) {
 112                 int err, count = 10;
 113                 do {
 114                         err = i2c_smbus_write_byte_data(i2c->client,
 115                                                         regs[0], regs[1]);
 116                         if (err >= 0)
 117                                 break;
 118                         DBG("(W) i2c error %d\n", err);
 119                         mdelay(10);
 120                 } while (count--);
 121                 if (err < 0)
 122                         return -ENXIO;
 123                 regs += 2;
 124         }
 125         return 0;
 126 }
 127
 128
 129 static int tumbler_init_client(struct pmac_keywest *i2c)
 130 {
 131         static const unsigned int regs[] = {
 132                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
 133                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
 134                 0, /* terminator */
 135         };
 136         DBG("(I) tumbler init client\n");
 137         return send_init_client(i2c, regs);
 138 }
 139
 140 static int snapper_init_client(struct pmac_keywest *i2c)
 141 {
 142         static const unsigned int regs[] = {
 143                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
 144                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
 145                 /* normal operation, all-pass mode */
 146                 TAS_REG_MCS2, (1<<1),
 147                 /* normal output, no deemphasis, A input, power-up, line-in */
 148                 TAS_REG_ACS, 0,
 149                 0, /* terminator */
 150         };
 151         DBG("(I) snapper init client\n");
 152         return send_init_client(i2c, regs);
 153 }
 154
 155 /*
 156  * gpio access
 157  */
 158 #define do_gpio_write(gp, val) \
 159         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
 160 #define do_gpio_read(gp) \
 161         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
 162 #define tumbler_gpio_free(gp) /* NOP */
 163
 164 static void write_audio_gpio(struct pmac_gpio *gp, int active)
 165 {
 166         if (! gp->addr)
 167                 return;
 168         active = active ? gp->active_val : gp->inactive_val;
 169         do_gpio_write(gp, active);
 170         DBG("(I) gpio %x write %d\n", gp->addr, active);
 171 }
 172
 173 static int check_audio_gpio(struct pmac_gpio *gp)
 174 {
 175         int ret;
 176
 177         if (! gp->addr)
 178                 return 0;
 179
 180         ret = do_gpio_read(gp);
 181
 182         return (ret & 0x1) == (gp->active_val & 0x1);
 183 }
 184
 185 static int read_audio_gpio(struct pmac_gpio *gp)
 186 {
 187         int ret;
 188         if (! gp->addr)
 189                 return 0;
 190         ret = do_gpio_read(gp);
 191         ret = (ret & 0x02) !=0;
 192         return ret == gp->active_state;
 193 }
 194
 195 /*
 196  * update master volume
 197  */
 198 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
 199 {
 200         unsigned char block[6];
 201         unsigned int left_vol, right_vol;
 202
 203         if (! mix->i2c.client)
 204                 return -ENODEV;
 205
 206         if (! mix->master_switch[0])
 207                 left_vol = 0;
 208         else {
 209                 left_vol = mix->master_vol[0];
 210                 if (left_vol >= ARRAY_SIZE(master_volume_table))
 211                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
 212                 left_vol = master_volume_table[left_vol];
 213         }
 214         if (! mix->master_switch[1])
 215                 right_vol = 0;
 216         else {
 217                 right_vol = mix->master_vol[1];
 218                 if (right_vol >= ARRAY_SIZE(master_volume_table))
 219                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
 220                 right_vol = master_volume_table[right_vol];
 221         }
 222
 223         block[0] = (left_vol >> 16) & 0xff;
 224         block[1] = (left_vol >> 8)  & 0xff;
 225         block[2] = (left_vol >> 0)  & 0xff;
 226
 227         block[3] = (right_vol >> 16) & 0xff;
 228         block[4] = (right_vol >> 8)  & 0xff;
 229         block[5] = (right_vol >> 0)  & 0xff;
 230
 231         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
 232                                            block) < 0) {
 233                 snd_printk(KERN_ERR "failed to set volume \n");
 234                 return -EINVAL;
 235         }
 236         DBG("(I) succeeded to set volume (%u, %u)\n", left_vol, right_vol);
 237         return 0;
 238 }
 239
 240
 241 /* output volume */
 242 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
 243                                       struct snd_ctl_elem_info *uinfo)
 244 {
 245         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 246         uinfo->count = 2;
 247         uinfo->value.integer.min = 0;
 248         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
 249         return 0;
 250 }
 251
 252 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
 253                                      struct snd_ctl_elem_value *ucontrol)
 254 {
 255         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 256         struct pmac_tumbler *mix = chip->mixer_data;
 257
 258         ucontrol->value.integer.value[0] = mix->master_vol[0];
 259         ucontrol->value.integer.value[1] = mix->master_vol[1];
 260         return 0;
 261 }
 262
 263 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
 264                                      struct snd_ctl_elem_value *ucontrol)
 265 {
 266         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 267         struct pmac_tumbler *mix = chip->mixer_data;
 268         unsigned int vol[2];
 269         int change;
 270
 271         vol[0] = ucontrol->value.integer.value[0];
 272         vol[1] = ucontrol->value.integer.value[1];
 273         if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
 274             vol[1] >= ARRAY_SIZE(master_volume_table))
 275                 return -EINVAL;
 276         change = mix->master_vol[0] != vol[0] ||
 277                 mix->master_vol[1] != vol[1];
 278         if (change) {
 279                 mix->master_vol[0] = vol[0];
 280                 mix->master_vol[1] = vol[1];
 281                 tumbler_set_master_volume(mix);
 282         }
 283         return change;
 284 }
 285
 286 /* output switch */
 287 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
 288                                      struct snd_ctl_elem_value *ucontrol)
 289 {
 290         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 291         struct pmac_tumbler *mix = chip->mixer_data;
 292
 293         ucontrol->value.integer.value[0] = mix->master_switch[0];
 294         ucontrol->value.integer.value[1] = mix->master_switch[1];
 295         return 0;
 296 }
 297
 298 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
 299                                      struct snd_ctl_elem_value *ucontrol)
 300 {
 301         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 302         struct pmac_tumbler *mix = chip->mixer_data;
 303         int change;
 304
 305         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
 306                 mix->master_switch[1] != ucontrol->value.integer.value[1];
 307         if (change) {
 308                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
 309                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
 310                 tumbler_set_master_volume(mix);
 311         }
 312         return change;
 313 }
 314
 315
 316 /*
 317  * TAS3001c dynamic range compression
 318  */
 319
 320 #define TAS3001_DRC_MAX         0x5f
 321
 322 static int tumbler_set_drc(struct pmac_tumbler *mix)
 323 {
 324         unsigned char val[2];
 325
 326         if (! mix->i2c.client)
 327                 return -ENODEV;
 328
 329         if (mix->drc_enable) {
 330                 val[0] = 0xc1; /* enable, 3:1 compression */
 331                 if (mix->drc_range > TAS3001_DRC_MAX)
 332                         val[1] = 0xf0;
 333                 else if (mix->drc_range < 0)
 334                         val[1] = 0x91;
 335                 else
 336                         val[1] = mix->drc_range + 0x91;
 337         } else {
 338                 val[0] = 0;
 339                 val[1] = 0;
 340         }
 341
 342         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 343                                            2, val) < 0) {
 344                 snd_printk(KERN_ERR "failed to set DRC\n");
 345                 return -EINVAL;
 346         }
 347         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
 348         return 0;
 349 }
 350
 351 /*
 352  * TAS3004
 353  */
 354
 355 #define TAS3004_DRC_MAX         0xef
 356
 357 static int snapper_set_drc(struct pmac_tumbler *mix)
 358 {
 359         unsigned char val[6];
 360
 361         if (! mix->i2c.client)
 362                 return -ENODEV;
 363
 364         if (mix->drc_enable)
 365                 val[0] = 0x50; /* 3:1 above threshold */
 366         else
 367                 val[0] = 0x51; /* disabled */
 368         val[1] = 0x02; /* 1:1 below threshold */
 369         if (mix->drc_range > 0xef)
 370                 val[2] = 0xef;
 371         else if (mix->drc_range < 0)
 372                 val[2] = 0x00;
 373         else
 374                 val[2] = mix->drc_range;
 375         val[3] = 0xb0;
 376         val[4] = 0x60;
 377         val[5] = 0xa0;
 378
 379         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 380                                            6, val) < 0) {
 381                 snd_printk(KERN_ERR "failed to set DRC\n");
 382                 return -EINVAL;
 383         }
 384         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
 385         return 0;
 386 }
 387
 388 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
 389                                   struct snd_ctl_elem_info *uinfo)
 390 {
 391         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 392         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 393         uinfo->count = 1;
 394         uinfo->value.integer.min = 0;
 395         uinfo->value.integer.max =
 396                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
 397         return 0;
 398 }
 399
 400 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
 401                                  struct snd_ctl_elem_value *ucontrol)
 402 {
 403         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 404         struct pmac_tumbler *mix;
 405         mix = chip->mixer_data;
 406         if (!mix)
 407                 return -ENODEV;
 408         ucontrol->value.integer.value[0] = mix->drc_range;
 409         return 0;
 410 }
 411
 412 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
 413                                  struct snd_ctl_elem_value *ucontrol)
 414 {
 415         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 416         struct pmac_tumbler *mix;
 417         unsigned int val;
 418         int change;
 419
 420         mix = chip->mixer_data;
 421         if (!mix)
 422                 return -ENODEV;
 423         val = ucontrol->value.integer.value[0];
 424         if (chip->model == PMAC_TUMBLER) {
 425                 if (val > TAS3001_DRC_MAX)
 426                         return -EINVAL;
 427         } else {
 428                 if (val > TAS3004_DRC_MAX)
 429                         return -EINVAL;
 430         }
 431         change = mix->drc_range != val;
 432         if (change) {
 433                 mix->drc_range = val;
 434                 if (chip->model == PMAC_TUMBLER)
 435                         tumbler_set_drc(mix);
 436                 else
 437                         snapper_set_drc(mix);
 438         }
 439         return change;
 440 }
 441
 442 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
 443                                   struct snd_ctl_elem_value *ucontrol)
 444 {
 445         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 446         struct pmac_tumbler *mix;
 447         mix = chip->mixer_data;
 448         if (!mix)
 449                 return -ENODEV;
 450         ucontrol->value.integer.value[0] = mix->drc_enable;
 451         return 0;
 452 }
 453
 454 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
 455                                   struct snd_ctl_elem_value *ucontrol)
 456 {
 457         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 458         struct pmac_tumbler *mix;
 459         int change;
 460
 461         mix = chip->mixer_data;
 462         if (!mix)
 463                 return -ENODEV;
 464         change = mix->drc_enable != ucontrol->value.integer.value[0];
 465         if (change) {
 466                 mix->drc_enable = !!ucontrol->value.integer.value[0];
 467                 if (chip->model == PMAC_TUMBLER)
 468                         tumbler_set_drc(mix);
 469                 else
 470                         snapper_set_drc(mix);
 471         }
 472         return change;
 473 }
 474
 475
 476 /*
 477  * mono volumes
 478  */
 479
 480 struct tumbler_mono_vol {
 481         int index;
 482         int reg;
 483         int bytes;
 484         unsigned int max;
 485         const unsigned int *table;
 486 };
 487
 488 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
 489                                    const struct tumbler_mono_vol *info)
 490 {
 491         unsigned char block[4];
 492         unsigned int vol;
 493         int i;
 494
 495         if (! mix->i2c.client)
 496                 return -ENODEV;
 497
 498         vol = mix->mono_vol[info->index];
 499         if (vol >= info->max)
 500                 vol = info->max - 1;
 501         vol = info->table[vol];
 502         for (i = 0; i < info->bytes; i++)
 503                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
 504         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
 505                                            info->bytes, block) < 0) {
 506                 snd_printk(KERN_ERR "failed to set mono volume %d\n",
 507                            info->index);
 508                 return -EINVAL;
 509         }
 510         return 0;
 511 }
 512
 513 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
 514                              struct snd_ctl_elem_info *uinfo)
 515 {
 516         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 517
 518         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 519         uinfo->count = 1;
 520         uinfo->value.integer.min = 0;
 521         uinfo->value.integer.max = info->max - 1;
 522         return 0;
 523 }
 524
 525 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
 526                             struct snd_ctl_elem_value *ucontrol)
 527 {
 528         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 529         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 530         struct pmac_tumbler *mix;
 531         mix = chip->mixer_data;
 532         if (!mix)
 533                 return -ENODEV;
 534         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
 535         return 0;
 536 }
 537
 538 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
 539                             struct snd_ctl_elem_value *ucontrol)
 540 {
 541         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 542         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 543         struct pmac_tumbler *mix;
 544         unsigned int vol;
 545         int change;
 546
 547         mix = chip->mixer_data;
 548         if (!mix)
 549                 return -ENODEV;
 550         vol = ucontrol->value.integer.value[0];
 551         if (vol >= info->max)
 552                 return -EINVAL;
 553         change = mix->mono_vol[info->index] != vol;
 554         if (change) {
 555                 mix->mono_vol[info->index] = vol;
 556                 tumbler_set_mono_volume(mix, info);
 557         }
 558         return change;
 559 }
 560
 561 /* TAS3001c mono volumes */
 562 static const struct tumbler_mono_vol tumbler_pcm_vol_info = {
 563         .index = VOL_IDX_PCM_MONO,
 564         .reg = TAS_REG_PCM,
 565         .bytes = 3,
 566         .max = ARRAY_SIZE(mixer_volume_table),
 567         .table = mixer_volume_table,
 568 };
 569
 570 static const struct tumbler_mono_vol tumbler_bass_vol_info = {
 571         .index = VOL_IDX_BASS,
 572         .reg = TAS_REG_BASS,
 573         .bytes = 1,
 574         .max = ARRAY_SIZE(bass_volume_table),
 575         .table = bass_volume_table,
 576 };
 577
 578 static const struct tumbler_mono_vol tumbler_treble_vol_info = {
 579         .index = VOL_IDX_TREBLE,
 580         .reg = TAS_REG_TREBLE,
 581         .bytes = 1,
 582         .max = ARRAY_SIZE(treble_volume_table),
 583         .table = treble_volume_table,
 584 };
 585
 586 /* TAS3004 mono volumes */
 587 static const struct tumbler_mono_vol snapper_bass_vol_info = {
 588         .index = VOL_IDX_BASS,
 589         .reg = TAS_REG_BASS,
 590         .bytes = 1,
 591         .max = ARRAY_SIZE(snapper_bass_volume_table),
 592         .table = snapper_bass_volume_table,
 593 };
 594
 595 static const struct tumbler_mono_vol snapper_treble_vol_info = {
 596         .index = VOL_IDX_TREBLE,
 597         .reg = TAS_REG_TREBLE,
 598         .bytes = 1,
 599         .max = ARRAY_SIZE(snapper_treble_volume_table),
 600         .table = snapper_treble_volume_table,
 601 };
 602
 603
 604 #define DEFINE_MONO(xname,type) { \
 605         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 606         .name = xname, \
 607         .info = tumbler_info_mono, \
 608         .get = tumbler_get_mono, \
 609         .put = tumbler_put_mono, \
 610         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
 611 }
 612
 613 #define DEFINE_SNAPPER_MONO(xname,type) { \
 614         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 615         .name = xname, \
 616         .info = tumbler_info_mono, \
 617         .get = tumbler_get_mono, \
 618         .put = tumbler_put_mono, \
 619         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
 620 }
 621
 622
 623 /*
 624  * snapper mixer volumes
 625  */
 626
 627 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
 628 {
 629         int i, j, vol;
 630         unsigned char block[9];
 631
 632         vol = mix->mix_vol[idx][ch];
 633         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
 634                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
 635                 mix->mix_vol[idx][ch] = vol;
 636         }
 637
 638         for (i = 0; i < 3; i++) {
 639                 vol = mix->mix_vol[i][ch];
 640                 vol = mixer_volume_table[vol];
 641                 for (j = 0; j < 3; j++)
 642                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
 643         }
 644         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
 645                                            9, block) < 0) {
 646                 snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
 647                 return -EINVAL;
 648         }
 649         return 0;
 650 }
 651
 652 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
 653 {
 654         if (! mix->i2c.client)
 655                 return -ENODEV;
 656         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 657             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 658                 return -EINVAL;
 659         return 0;
 660 }
 661
 662 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
 663                             struct snd_ctl_elem_info *uinfo)
 664 {
 665         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 666         uinfo->count = 2;
 667         uinfo->value.integer.min = 0;
 668         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 669         return 0;
 670 }
 671
 672 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
 673                            struct snd_ctl_elem_value *ucontrol)
 674 {
 675         int idx = (int)kcontrol->private_value;
 676         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 677         struct pmac_tumbler *mix;
 678         mix = chip->mixer_data;
 679         if (!mix)
 680                 return -ENODEV;
 681         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 682         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 683         return 0;
 684 }
 685
 686 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
 687                            struct snd_ctl_elem_value *ucontrol)
 688 {
 689         int idx = (int)kcontrol->private_value;
 690         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 691         struct pmac_tumbler *mix;
 692         unsigned int vol[2];
 693         int change;
 694
 695         mix = chip->mixer_data;
 696         if (!mix)
 697                 return -ENODEV;
 698         vol[0] = ucontrol->value.integer.value[0];
 699         vol[1] = ucontrol->value.integer.value[1];
 700         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
 701             vol[1] >= ARRAY_SIZE(mixer_volume_table))
 702                 return -EINVAL;
 703         change = mix->mix_vol[idx][0] != vol[0] ||
 704                 mix->mix_vol[idx][1] != vol[1];
 705         if (change) {
 706                 mix->mix_vol[idx][0] = vol[0];
 707                 mix->mix_vol[idx][1] = vol[1];
 708                 snapper_set_mix_vol(mix, idx);
 709         }
 710         return change;
 711 }
 712
 713
 714 /*
 715  * mute switches. FIXME: Turn that into software mute when both outputs are muted
 716  * to avoid codec reset on ibook M7
 717  */
 718
 719 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
 720
 721 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
 722                                    struct snd_ctl_elem_value *ucontrol)
 723 {
 724         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 725         struct pmac_tumbler *mix;
 726         struct pmac_gpio *gp;
 727         mix = chip->mixer_data;
 728         if (!mix)
 729                 return -ENODEV;
 730         switch(kcontrol->private_value) {
 731         case TUMBLER_MUTE_HP:
 732                 gp = &mix->hp_mute;     break;
 733         case TUMBLER_MUTE_AMP:
 734                 gp = &mix->amp_mute;    break;
 735         case TUMBLER_MUTE_LINE:
 736                 gp = &mix->line_mute;   break;
 737         default:
 738                 gp = NULL;
 739         }
 740         if (gp == NULL)
 741                 return -EINVAL;
 742         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
 743         return 0;
 744 }
 745
 746 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
 747                                    struct snd_ctl_elem_value *ucontrol)
 748 {
 749         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 750         struct pmac_tumbler *mix;
 751         struct pmac_gpio *gp;
 752         int val;
 753 #ifdef PMAC_SUPPORT_AUTOMUTE
 754         if (chip->update_automute && chip->auto_mute)
 755                 return 0; /* don't touch in the auto-mute mode */
 756 #endif
 757         mix = chip->mixer_data;
 758         if (!mix)
 759                 return -ENODEV;
 760         switch(kcontrol->private_value) {
 761         case TUMBLER_MUTE_HP:
 762                 gp = &mix->hp_mute;     break;
 763         case TUMBLER_MUTE_AMP:
 764                 gp = &mix->amp_mute;    break;
 765         case TUMBLER_MUTE_LINE:
 766                 gp = &mix->line_mute;   break;
 767         default:
 768                 gp = NULL;
 769         }
 770         if (gp == NULL)
 771                 return -EINVAL;
 772         val = ! check_audio_gpio(gp);
 773         if (val != ucontrol->value.integer.value[0]) {
 774                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 775                 return 1;
 776         }
 777         return 0;
 778 }
 779
 780 static int snapper_set_capture_source(struct pmac_tumbler *mix)
 781 {
 782         if (! mix->i2c.client)
 783                 return -ENODEV;
 784         if (mix->capture_source)
 785                 mix->acs |= 2;
 786         else
 787                 mix->acs &= ~2;
 788         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
 789 }
 790
 791 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
 792                                        struct snd_ctl_elem_info *uinfo)
 793 {
 794         static const char * const texts[2] = {
 795                 "Line", "Mic"
 796         };
 797
 798         return snd_ctl_enum_info(uinfo, 1, 2, texts);
 799 }
 800
 801 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
 802                                       struct snd_ctl_elem_value *ucontrol)
 803 {
 804         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 805         struct pmac_tumbler *mix = chip->mixer_data;
 806
 807         ucontrol->value.enumerated.item[0] = mix->capture_source;
 808         return 0;
 809 }
 810
 811 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
 812                                       struct snd_ctl_elem_value *ucontrol)
 813 {
 814         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 815         struct pmac_tumbler *mix = chip->mixer_data;
 816         int change;
 817
 818         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
 819         if (change) {
 820                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
 821                 snapper_set_capture_source(mix);
 822         }
 823         return change;
 824 }
 825
 826 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 827         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 828         .name = xname, \
 829         .info = snapper_info_mix, \
 830         .get = snapper_get_mix, \
 831         .put = snapper_put_mix, \
 832         .index = idx,\
 833         .private_value = ofs, \
 834 }
 835
 836
 837 /*
 838  */
 839 static const struct snd_kcontrol_new tumbler_mixers[] = {
 840         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 841           .name = "Master Playback Volume",
 842           .info = tumbler_info_master_volume,
 843           .get = tumbler_get_master_volume,
 844           .put = tumbler_put_master_volume
 845         },
 846         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 847           .name = "Master Playback Switch",
 848           .info = snd_pmac_boolean_stereo_info,
 849           .get = tumbler_get_master_switch,
 850           .put = tumbler_put_master_switch
 851         },
 852         DEFINE_MONO("Tone Control - Bass", bass),
 853         DEFINE_MONO("Tone Control - Treble", treble),
 854         DEFINE_MONO("PCM Playback Volume", pcm),
 855         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 856           .name = "DRC Range",
 857           .info = tumbler_info_drc_value,
 858           .get = tumbler_get_drc_value,
 859           .put = tumbler_put_drc_value
 860         },
 861 };
 862
 863 static const struct snd_kcontrol_new snapper_mixers[] = {
 864         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 865           .name = "Master Playback Volume",
 866           .info = tumbler_info_master_volume,
 867           .get = tumbler_get_master_volume,
 868           .put = tumbler_put_master_volume
 869         },
 870         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 871           .name = "Master Playback Switch",
 872           .info = snd_pmac_boolean_stereo_info,
 873           .get = tumbler_get_master_switch,
 874           .put = tumbler_put_master_switch
 875         },
 876         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 877         /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
 878         DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
 879         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 880         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 881         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 882         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 883           .name = "DRC Range",
 884           .info = tumbler_info_drc_value,
 885           .get = tumbler_get_drc_value,
 886           .put = tumbler_put_drc_value
 887         },
 888         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 889           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 890           .info = snapper_info_capture_source,
 891           .get = snapper_get_capture_source,
 892           .put = snapper_put_capture_source
 893         },
 894 };
 895
 896 static const struct snd_kcontrol_new tumbler_hp_sw = {
 897         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 898         .name = "Headphone Playback Switch",
 899         .info = snd_pmac_boolean_mono_info,
 900         .get = tumbler_get_mute_switch,
 901         .put = tumbler_put_mute_switch,
 902         .private_value = TUMBLER_MUTE_HP,
 903 };
 904 static const struct snd_kcontrol_new tumbler_speaker_sw = {
 905         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 906         .name = "Speaker Playback Switch",
 907         .info = snd_pmac_boolean_mono_info,
 908         .get = tumbler_get_mute_switch,
 909         .put = tumbler_put_mute_switch,
 910         .private_value = TUMBLER_MUTE_AMP,
 911 };
 912 static const struct snd_kcontrol_new tumbler_lineout_sw = {
 913         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 914         .name = "Line Out Playback Switch",
 915         .info = snd_pmac_boolean_mono_info,
 916         .get = tumbler_get_mute_switch,
 917         .put = tumbler_put_mute_switch,
 918         .private_value = TUMBLER_MUTE_LINE,
 919 };
 920 static const struct snd_kcontrol_new tumbler_drc_sw = {
 921         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 922         .name = "DRC Switch",
 923         .info = snd_pmac_boolean_mono_info,
 924         .get = tumbler_get_drc_switch,
 925         .put = tumbler_put_drc_switch
 926 };
 927
 928
 929 #ifdef PMAC_SUPPORT_AUTOMUTE
 930 /*
 931  * auto-mute stuffs
 932  */
 933 static int tumbler_detect_headphone(struct snd_pmac *chip)
 934 {
 935         struct pmac_tumbler *mix = chip->mixer_data;
 936         int detect = 0;
 937
 938         if (mix->hp_detect.addr)
 939                 detect |= read_audio_gpio(&mix->hp_detect);
 940         return detect;
 941 }
 942
 943 static int tumbler_detect_lineout(struct snd_pmac *chip)
 944 {
 945         struct pmac_tumbler *mix = chip->mixer_data;
 946         int detect = 0;
 947
 948         if (mix->line_detect.addr)
 949                 detect |= read_audio_gpio(&mix->line_detect);
 950         return detect;
 951 }
 952
 953 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
 954                        struct snd_kcontrol *sw)
 955 {
 956         if (check_audio_gpio(gp) != val) {
 957                 write_audio_gpio(gp, val);
 958                 if (do_notify)
 959                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 960                                        &sw->id);
 961         }
 962 }
 963
 964 static struct work_struct device_change;
 965 static struct snd_pmac *device_change_chip;
 966
 967 static void device_change_handler(struct work_struct *work)
 968 {
 969         struct snd_pmac *chip = device_change_chip;
 970         struct pmac_tumbler *mix;
 971         int headphone, lineout;
 972
 973         if (!chip)
 974                 return;
 975
 976         mix = chip->mixer_data;
 977         if (snd_BUG_ON(!mix))
 978                 return;
 979
 980         headphone = tumbler_detect_headphone(chip);
 981         lineout = tumbler_detect_lineout(chip);
 982
 983         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
 984
 985         if (headphone || lineout) {
 986                 /* unmute headphone/lineout & mute speaker */
 987                 if (headphone)
 988                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
 989                                    chip->master_sw_ctl);
 990                 if (lineout && mix->line_mute.addr != 0)
 991                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
 992                                    chip->lineout_sw_ctl);
 993                 if (mix->anded_reset)
 994                         msleep(10);
 995                 check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
 996                            chip->speaker_sw_ctl);
 997         } else {
 998                 /* unmute speaker, mute others */
 999                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1000                            chip->speaker_sw_ctl);
1001                 if (mix->anded_reset)
1002                         msleep(10);
1003                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1004                            chip->master_sw_ctl);
1005                 if (mix->line_mute.addr != 0)
1006                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1007                                    chip->lineout_sw_ctl);
1008         }
1009         if (mix->auto_mute_notify)
1010                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1011                                        &chip->hp_detect_ctl->id);
1012
1013 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1014         mix->drc_enable = ! (headphone || lineout);
1015         if (mix->auto_mute_notify)
1016                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1017                                &chip->drc_sw_ctl->id);
1018         if (chip->model == PMAC_TUMBLER)
1019                 tumbler_set_drc(mix);
1020         else
1021                 snapper_set_drc(mix);
1022 #endif
1023
1024         /* reset the master volume so the correct amplification is applied */
1025         tumbler_set_master_volume(mix);
1026 }
1027
1028 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1029 {
1030         if (chip->auto_mute) {
1031                 struct pmac_tumbler *mix;
1032                 mix = chip->mixer_data;
1033                 if (snd_BUG_ON(!mix))
1034                         return;
1035                 mix->auto_mute_notify = do_notify;
1036                 schedule_work(&device_change);
1037         }
1038 }
1039 #endif /* PMAC_SUPPORT_AUTOMUTE */
1040
1041
1042 /* interrupt - headphone plug changed */
1043 static irqreturn_t headphone_intr(int irq, void *devid)
1044 {
1045         struct snd_pmac *chip = devid;
1046         if (chip->update_automute && chip->initialized) {
1047                 chip->update_automute(chip, 1);
1048                 return IRQ_HANDLED;
1049         }
1050         return IRQ_NONE;
1051 }
1052
1053 /* look for audio-gpio device */
1054 static struct device_node *find_audio_device(const char *name)
1055 {
1056         struct device_node *gpiop;
1057         struct device_node *np;
1058
1059         gpiop = of_find_node_by_name(NULL, "gpio");
1060         if (! gpiop)
1061                 return NULL;
1062
1063         for_each_child_of_node(gpiop, np) {
1064                 const char *property = of_get_property(np, "audio-gpio", NULL);
1065                 if (property && strcmp(property, name) == 0)
1066                         break;
1067         }
1068         of_node_put(gpiop);
1069         return np;
1070 }
1071
1072 /* look for audio-gpio device */
1073 static struct device_node *find_compatible_audio_device(const char *name)
1074 {
1075         struct device_node *gpiop;
1076         struct device_node *np;
1077
1078         gpiop = of_find_node_by_name(NULL, "gpio");
1079         if (!gpiop)
1080                 return NULL;
1081
1082         for_each_child_of_node(gpiop, np) {
1083                 if (of_device_is_compatible(np, name))
1084                         break;
1085         }
1086         of_node_put(gpiop);
1087         return np;
1088 }
1089
1090 /* find an audio device and get its address */
1091 static long tumbler_find_device(const char *device, const char *platform,
1092                                 struct pmac_gpio *gp, int is_compatible)
1093 {
1094         struct device_node *node;
1095         const u32 *base;
1096         u32 addr;
1097         long ret;
1098
1099         if (is_compatible)
1100                 node = find_compatible_audio_device(device);
1101         else
1102                 node = find_audio_device(device);
1103         if (! node) {
1104                 DBG("(W) cannot find audio device %s !\n", device);
1105                 snd_printdd("cannot find device %s\n", device);
1106                 return -ENODEV;
1107         }
1108
1109         base = of_get_property(node, "AAPL,address", NULL);
1110         if (! base) {
1111                 base = of_get_property(node, "reg", NULL);
1112                 if (!base) {
1113                         DBG("(E) cannot find address for device %s !\n", device);
1114                         snd_printd("cannot find address for device %s\n", device);
1115                         of_node_put(node);
1116                         return -ENODEV;
1117                 }
1118                 addr = *base;
1119                 if (addr < 0x50)
1120                         addr += 0x50;
1121         } else
1122                 addr = *base;
1123
1124         gp->addr = addr & 0x0000ffff;
1125         /* Try to find the active state, default to 0 ! */
1126         base = of_get_property(node, "audio-gpio-active-state", NULL);
1127         if (base) {
1128                 gp->active_state = *base;
1129                 gp->active_val = (*base) ? 0x5 : 0x4;
1130                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1131         } else {
1132                 const u32 *prop = NULL;
1133                 gp->active_state = IS_G4DA
1134                                 && !strncmp(device, "keywest-gpio1", 13);
1135                 gp->active_val = 0x4;
1136                 gp->inactive_val = 0x5;
1137                 /* Here are some crude hacks to extract the GPIO polarity and
1138                  * open collector informations out of the do-platform script
1139                  * as we don't yet have an interpreter for these things
1140                  */
1141                 if (platform)
1142                         prop = of_get_property(node, platform, NULL);
1143                 if (prop) {
1144                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1145                                 gp->active_val = 0xd;
1146                                 gp->inactive_val = 0xc;
1147                         }
1148                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1149                                 gp->active_val = 0x5;
1150                                 gp->inactive_val = 0x4;
1151                         }
1152                 }
1153         }
1154
1155         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1156             device, gp->addr, gp->active_state);
1157
1158         ret = irq_of_parse_and_map(node, 0);
1159         of_node_put(node);
1160         return ret;
1161 }
1162
1163 /* reset audio */
1164 static void tumbler_reset_audio(struct snd_pmac *chip)
1165 {
1166         struct pmac_tumbler *mix = chip->mixer_data;
1167
1168         if (mix->anded_reset) {
1169                 DBG("(I) codec anded reset !\n");
1170                 write_audio_gpio(&mix->hp_mute, 0);
1171                 write_audio_gpio(&mix->amp_mute, 0);
1172                 msleep(200);
1173                 write_audio_gpio(&mix->hp_mute, 1);
1174                 write_audio_gpio(&mix->amp_mute, 1);
1175                 msleep(100);
1176                 write_audio_gpio(&mix->hp_mute, 0);
1177                 write_audio_gpio(&mix->amp_mute, 0);
1178                 msleep(100);
1179         } else {
1180                 DBG("(I) codec normal reset !\n");
1181
1182                 write_audio_gpio(&mix->audio_reset, 0);
1183                 msleep(200);
1184                 write_audio_gpio(&mix->audio_reset, 1);
1185                 msleep(100);
1186                 write_audio_gpio(&mix->audio_reset, 0);
1187                 msleep(100);
1188         }
1189 }
1190
1191 #ifdef CONFIG_PM
1192 /* suspend mixer */
1193 static void tumbler_suspend(struct snd_pmac *chip)
1194 {
1195         struct pmac_tumbler *mix = chip->mixer_data;
1196
1197         if (mix->headphone_irq >= 0)
1198                 disable_irq(mix->headphone_irq);
1199         if (mix->lineout_irq >= 0)
1200                 disable_irq(mix->lineout_irq);
1201         mix->save_master_switch[0] = mix->master_switch[0];
1202         mix->save_master_switch[1] = mix->master_switch[1];
1203         mix->save_master_vol[0] = mix->master_vol[0];
1204         mix->save_master_vol[1] = mix->master_vol[1];
1205         mix->master_switch[0] = mix->master_switch[1] = 0;
1206         tumbler_set_master_volume(mix);
1207         if (!mix->anded_reset) {
1208                 write_audio_gpio(&mix->amp_mute, 1);
1209                 write_audio_gpio(&mix->hp_mute, 1);
1210         }
1211         if (chip->model == PMAC_SNAPPER) {
1212                 mix->acs |= 1;
1213                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1214         }
1215         if (mix->anded_reset) {
1216                 write_audio_gpio(&mix->amp_mute, 1);
1217                 write_audio_gpio(&mix->hp_mute, 1);
1218         } else
1219                 write_audio_gpio(&mix->audio_reset, 1);
1220 }
1221
1222 /* resume mixer */
1223 static void tumbler_resume(struct snd_pmac *chip)
1224 {
1225         struct pmac_tumbler *mix = chip->mixer_data;
1226
1227         mix->acs &= ~1;
1228         mix->master_switch[0] = mix->save_master_switch[0];
1229         mix->master_switch[1] = mix->save_master_switch[1];
1230         mix->master_vol[0] = mix->save_master_vol[0];
1231         mix->master_vol[1] = mix->save_master_vol[1];
1232         tumbler_reset_audio(chip);
1233         if (mix->i2c.client && mix->i2c.init_client) {
1234                 if (mix->i2c.init_client(&mix->i2c) < 0)
1235                         printk(KERN_ERR "tumbler_init_client error\n");
1236         } else
1237                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1238         if (chip->model == PMAC_TUMBLER) {
1239                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1240                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1241                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1242                 tumbler_set_drc(mix);
1243         } else {
1244                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1245                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1246                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1247                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1248                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1249                 snapper_set_drc(mix);
1250                 snapper_set_capture_source(mix);
1251         }
1252         tumbler_set_master_volume(mix);
1253         if (chip->update_automute)
1254                 chip->update_automute(chip, 0);
1255         if (mix->headphone_irq >= 0) {
1256                 unsigned char val;
1257
1258                 enable_irq(mix->headphone_irq);
1259                 /* activate headphone status interrupts */
1260                 val = do_gpio_read(&mix->hp_detect);
1261                 do_gpio_write(&mix->hp_detect, val | 0x80);
1262         }
1263         if (mix->lineout_irq >= 0)
1264                 enable_irq(mix->lineout_irq);
1265 }
1266 #endif
1267
1268 /* initialize tumbler */
1269 static int tumbler_init(struct snd_pmac *chip)
1270 {
1271         int irq;
1272         struct pmac_tumbler *mix = chip->mixer_data;
1273
1274         if (tumbler_find_device("audio-hw-reset",
1275                                 "platform-do-hw-reset",
1276                                 &mix->audio_reset, 0) < 0)
1277                 tumbler_find_device("hw-reset",
1278                                     "platform-do-hw-reset",
1279                                     &mix->audio_reset, 1);
1280         if (tumbler_find_device("amp-mute",
1281                                 "platform-do-amp-mute",
1282                                 &mix->amp_mute, 0) < 0)
1283                 tumbler_find_device("amp-mute",
1284                                     "platform-do-amp-mute",
1285                                     &mix->amp_mute, 1);
1286         if (tumbler_find_device("headphone-mute",
1287                                 "platform-do-headphone-mute",
1288                                 &mix->hp_mute, 0) < 0)
1289                 tumbler_find_device("headphone-mute",
1290                                     "platform-do-headphone-mute",
1291                                     &mix->hp_mute, 1);
1292         if (tumbler_find_device("line-output-mute",
1293                                 "platform-do-lineout-mute",
1294                                 &mix->line_mute, 0) < 0)
1295                 tumbler_find_device("line-output-mute",
1296                                    "platform-do-lineout-mute",
1297                                     &mix->line_mute, 1);
1298         irq = tumbler_find_device("headphone-detect",
1299                                   NULL, &mix->hp_detect, 0);
1300         if (irq <= 0)
1301                 irq = tumbler_find_device("headphone-detect",
1302                                           NULL, &mix->hp_detect, 1);
1303         if (irq <= 0)
1304                 irq = tumbler_find_device("keywest-gpio15",
1305                                           NULL, &mix->hp_detect, 1);
1306         mix->headphone_irq = irq;
1307         irq = tumbler_find_device("line-output-detect",
1308                                   NULL, &mix->line_detect, 0);
1309         if (irq <= 0)
1310                 irq = tumbler_find_device("line-output-detect",
1311                                           NULL, &mix->line_detect, 1);
1312         if (IS_G4DA && irq <= 0)
1313                 irq = tumbler_find_device("keywest-gpio16",
1314                                           NULL, &mix->line_detect, 1);
1315         mix->lineout_irq = irq;
1316
1317         tumbler_reset_audio(chip);
1318
1319         return 0;
1320 }
1321
1322 static void tumbler_cleanup(struct snd_pmac *chip)
1323 {
1324         struct pmac_tumbler *mix = chip->mixer_data;
1325         if (! mix)
1326                 return;
1327
1328         if (mix->headphone_irq >= 0)
1329                 free_irq(mix->headphone_irq, chip);
1330         if (mix->lineout_irq >= 0)
1331                 free_irq(mix->lineout_irq, chip);
1332         tumbler_gpio_free(&mix->audio_reset);
1333         tumbler_gpio_free(&mix->amp_mute);
1334         tumbler_gpio_free(&mix->hp_mute);
1335         tumbler_gpio_free(&mix->hp_detect);
1336         snd_pmac_keywest_cleanup(&mix->i2c);
1337         kfree(mix);
1338         chip->mixer_data = NULL;
1339 }
1340
1341 /* exported */
1342 int snd_pmac_tumbler_init(struct snd_pmac *chip)
1343 {
1344         int i, err;
1345         struct pmac_tumbler *mix;
1346         const u32 *paddr;
1347         struct device_node *tas_node, *np;
1348         char *chipname;
1349
1350         request_module("i2c-powermac");
1351
1352         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1353         if (! mix)
1354                 return -ENOMEM;
1355         mix->headphone_irq = -1;
1356
1357         chip->mixer_data = mix;
1358         chip->mixer_free = tumbler_cleanup;
1359         mix->anded_reset = 0;
1360         mix->reset_on_sleep = 1;
1361
1362         for_each_child_of_node(chip->node, np) {
1363                 if (of_node_name_eq(np, "sound")) {
1364                         if (of_property_read_bool(np, "has-anded-reset"))
1365                                 mix->anded_reset = 1;
1366                         if (of_property_present(np, "layout-id"))
1367                                 mix->reset_on_sleep = 0;
1368                         of_node_put(np);
1369                         break;
1370                 }
1371         }
1372         err = tumbler_init(chip);
1373         if (err < 0)
1374                 return err;
1375
1376         /* set up TAS */
1377         tas_node = of_find_node_by_name(NULL, "deq");
1378         if (tas_node == NULL)
1379                 tas_node = of_find_node_by_name(NULL, "codec");
1380         if (tas_node == NULL)
1381                 return -ENODEV;
1382
1383         paddr = of_get_property(tas_node, "i2c-address", NULL);
1384         if (paddr == NULL)
1385                 paddr = of_get_property(tas_node, "reg", NULL);
1386         if (paddr)
1387                 mix->i2c.addr = (*paddr) >> 1;
1388         else
1389                 mix->i2c.addr = TAS_I2C_ADDR;
1390         of_node_put(tas_node);
1391
1392         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1393
1394         if (chip->model == PMAC_TUMBLER) {
1395                 mix->i2c.init_client = tumbler_init_client;
1396                 mix->i2c.name = "TAS3001c";
1397                 chipname = "Tumbler";
1398         } else {
1399                 mix->i2c.init_client = snapper_init_client;
1400                 mix->i2c.name = "TAS3004";
1401                 chipname = "Snapper";
1402         }
1403
1404         err = snd_pmac_keywest_init(&mix->i2c);
1405         if (err < 0)
1406                 return err;
1407
1408         /*
1409          * build mixers
1410          */
1411         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1412
1413         if (chip->model == PMAC_TUMBLER) {
1414                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1415                         err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip));
1416                         if (err < 0)
1417                                 return err;
1418                 }
1419         } else {
1420                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1421                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip));
1422                         if (err < 0)
1423                                 return err;
1424                 }
1425         }
1426         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1427         err = snd_ctl_add(chip->card, chip->master_sw_ctl);
1428         if (err < 0)
1429                 return err;
1430         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1431         err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
1432         if (err < 0)
1433                 return err;
1434         if (mix->line_mute.addr != 0) {
1435                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1436                 err = snd_ctl_add(chip->card, chip->lineout_sw_ctl);
1437                 if (err < 0)
1438                         return err;
1439         }
1440         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1441         err = snd_ctl_add(chip->card, chip->drc_sw_ctl);
1442         if (err < 0)
1443                 return err;
1444
1445         /* set initial DRC range to 60% */
1446         if (chip->model == PMAC_TUMBLER)
1447                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1448         else
1449                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1450         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1451         if (chip->model == PMAC_TUMBLER)
1452                 tumbler_set_drc(mix);
1453         else
1454                 snapper_set_drc(mix);
1455
1456 #ifdef CONFIG_PM
1457         chip->suspend = tumbler_suspend;
1458         chip->resume = tumbler_resume;
1459 #endif
1460
1461         INIT_WORK(&device_change, device_change_handler);
1462         device_change_chip = chip;
1463
1464 #ifdef PMAC_SUPPORT_AUTOMUTE
1465         if (mix->headphone_irq >= 0 || mix->lineout_irq >= 0) {
1466                 err = snd_pmac_add_automute(chip);
1467                 if (err < 0)
1468                         return err;
1469         }
1470         chip->detect_headphone = tumbler_detect_headphone;
1471         chip->update_automute = tumbler_update_automute;
1472         tumbler_update_automute(chip, 0); /* update the status only */
1473
1474         /* activate headphone status interrupts */
1475         if (mix->headphone_irq >= 0) {
1476                 unsigned char val;
1477                 err = request_irq(mix->headphone_irq, headphone_intr, 0,
1478                                   "Sound Headphone Detection", chip);
1479                 if (err < 0)
1480                         return 0;
1481                 /* activate headphone status interrupts */
1482                 val = do_gpio_read(&mix->hp_detect);
1483                 do_gpio_write(&mix->hp_detect, val | 0x80);
1484         }
1485         if (mix->lineout_irq >= 0) {
1486                 unsigned char val;
1487                 err = request_irq(mix->lineout_irq, headphone_intr, 0,
1488                                   "Sound Lineout Detection", chip);
1489                 if (err < 0)
1490                         return 0;
1491                 /* activate headphone status interrupts */
1492                 val = do_gpio_read(&mix->line_detect);
1493                 do_gpio_write(&mix->line_detect, val | 0x80);
1494         }
1495 #endif
1496
1497         return 0;
1498 }