sound/ppc/tumbler.c

   1 /*
   2  * PMac Tumbler/Snapper lowlevel functions
   3  *
   4  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  *   Rene Rebe <rene.rebe@gmx.net>:
  21  *     * update from shadow registers on wakeup and headphone plug
  22  *     * automatically toggle DRC on headphone plug
  23  *
  24  */
  25
  26
  27 #include <linux/init.h>
  28 #include <linux/delay.h>
  29 #include <linux/i2c.h>
  30 #include <linux/kmod.h>
  31 #include <linux/slab.h>
  32 #include <linux/interrupt.h>
  33 #include <linux/string.h>
  34 #include <linux/of_irq.h>
  35 #include <linux/io.h>
  36 #include <sound/core.h>
  37 #include <asm/irq.h>
  38 #include <asm/machdep.h>
  39 #include <asm/pmac_feature.h>
  40 #include "pmac.h"
  41 #include "tumbler_volume.h"
  42
  43 #undef DEBUG
  44
  45 #ifdef DEBUG
  46 #define DBG(fmt...) printk(KERN_DEBUG fmt)
  47 #else
  48 #define DBG(fmt...)
  49 #endif
  50
  51 #define IS_G4DA (of_machine_is_compatible("PowerMac3,4"))
  52
  53 /* i2c address for tumbler */
  54 #define TAS_I2C_ADDR    0x34
  55
  56 /* registers */
  57 #define TAS_REG_MCS     0x01    /* main control */
  58 #define TAS_REG_DRC     0x02
  59 #define TAS_REG_VOL     0x04
  60 #define TAS_REG_TREBLE  0x05
  61 #define TAS_REG_BASS    0x06
  62 #define TAS_REG_INPUT1  0x07
  63 #define TAS_REG_INPUT2  0x08
  64
  65 /* tas3001c */
  66 #define TAS_REG_PCM     TAS_REG_INPUT1
  67
  68 /* tas3004 */
  69 #define TAS_REG_LMIX    TAS_REG_INPUT1
  70 #define TAS_REG_RMIX    TAS_REG_INPUT2
  71 #define TAS_REG_MCS2    0x43            /* main control 2 */
  72 #define TAS_REG_ACS     0x40            /* analog control */
  73
  74 /* mono volumes for tas3001c/tas3004 */
  75 enum {
  76         VOL_IDX_PCM_MONO, /* tas3001c only */
  77         VOL_IDX_BASS, VOL_IDX_TREBLE,
  78         VOL_IDX_LAST_MONO
  79 };
  80
  81 /* stereo volumes for tas3004 */
  82 enum {
  83         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
  84         VOL_IDX_LAST_MIX
  85 };
  86
  87 struct pmac_gpio {
  88         unsigned int addr;
  89         u8 active_val;
  90         u8 inactive_val;
  91         u8 active_state;
  92 };
  93
  94 struct pmac_tumbler {
  95         struct pmac_keywest i2c;
  96         struct pmac_gpio audio_reset;
  97         struct pmac_gpio amp_mute;
  98         struct pmac_gpio line_mute;
  99         struct pmac_gpio line_detect;
 100         struct pmac_gpio hp_mute;
 101         struct pmac_gpio hp_detect;
 102         int headphone_irq;
 103         int lineout_irq;
 104         unsigned int save_master_vol[2];
 105         unsigned int master_vol[2];
 106         unsigned int save_master_switch[2];
 107         unsigned int master_switch[2];
 108         unsigned int mono_vol[VOL_IDX_LAST_MONO];
 109         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
 110         int drc_range;
 111         int drc_enable;
 112         int capture_source;
 113         int anded_reset;
 114         int auto_mute_notify;
 115         int reset_on_sleep;
 116         u8  acs;
 117 };
 118
 119
 120 /*
 121  */
 122
 123 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
 124 {
 125         while (*regs > 0) {
 126                 int err, count = 10;
 127                 do {
 128                         err = i2c_smbus_write_byte_data(i2c->client,
 129                                                         regs[0], regs[1]);
 130                         if (err >= 0)
 131                                 break;
 132                         DBG("(W) i2c error %d\n", err);
 133                         mdelay(10);
 134                 } while (count--);
 135                 if (err < 0)
 136                         return -ENXIO;
 137                 regs += 2;
 138         }
 139         return 0;
 140 }
 141
 142
 143 static int tumbler_init_client(struct pmac_keywest *i2c)
 144 {
 145         static unsigned int regs[] = {
 146                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
 147                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
 148                 0, /* terminator */
 149         };
 150         DBG("(I) tumbler init client\n");
 151         return send_init_client(i2c, regs);
 152 }
 153
 154 static int snapper_init_client(struct pmac_keywest *i2c)
 155 {
 156         static unsigned int regs[] = {
 157                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
 158                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
 159                 /* normal operation, all-pass mode */
 160                 TAS_REG_MCS2, (1<<1),
 161                 /* normal output, no deemphasis, A input, power-up, line-in */
 162                 TAS_REG_ACS, 0,
 163                 0, /* terminator */
 164         };
 165         DBG("(I) snapper init client\n");
 166         return send_init_client(i2c, regs);
 167 }
 168
 169 /*
 170  * gpio access
 171  */
 172 #define do_gpio_write(gp, val) \
 173         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
 174 #define do_gpio_read(gp) \
 175         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
 176 #define tumbler_gpio_free(gp) /* NOP */
 177
 178 static void write_audio_gpio(struct pmac_gpio *gp, int active)
 179 {
 180         if (! gp->addr)
 181                 return;
 182         active = active ? gp->active_val : gp->inactive_val;
 183         do_gpio_write(gp, active);
 184         DBG("(I) gpio %x write %d\n", gp->addr, active);
 185 }
 186
 187 static int check_audio_gpio(struct pmac_gpio *gp)
 188 {
 189         int ret;
 190
 191         if (! gp->addr)
 192                 return 0;
 193
 194         ret = do_gpio_read(gp);
 195
 196         return (ret & 0x1) == (gp->active_val & 0x1);
 197 }
 198
 199 static int read_audio_gpio(struct pmac_gpio *gp)
 200 {
 201         int ret;
 202         if (! gp->addr)
 203                 return 0;
 204         ret = do_gpio_read(gp);
 205         ret = (ret & 0x02) !=0;
 206         return ret == gp->active_state;
 207 }
 208
 209 /*
 210  * update master volume
 211  */
 212 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
 213 {
 214         unsigned char block[6];
 215         unsigned int left_vol, right_vol;
 216
 217         if (! mix->i2c.client)
 218                 return -ENODEV;
 219
 220         if (! mix->master_switch[0])
 221                 left_vol = 0;
 222         else {
 223                 left_vol = mix->master_vol[0];
 224                 if (left_vol >= ARRAY_SIZE(master_volume_table))
 225                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
 226                 left_vol = master_volume_table[left_vol];
 227         }
 228         if (! mix->master_switch[1])
 229                 right_vol = 0;
 230         else {
 231                 right_vol = mix->master_vol[1];
 232                 if (right_vol >= ARRAY_SIZE(master_volume_table))
 233                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
 234                 right_vol = master_volume_table[right_vol];
 235         }
 236
 237         block[0] = (left_vol >> 16) & 0xff;
 238         block[1] = (left_vol >> 8)  & 0xff;
 239         block[2] = (left_vol >> 0)  & 0xff;
 240
 241         block[3] = (right_vol >> 16) & 0xff;
 242         block[4] = (right_vol >> 8)  & 0xff;
 243         block[5] = (right_vol >> 0)  & 0xff;
 244
 245         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
 246                                            block) < 0) {
 247                 snd_printk(KERN_ERR "failed to set volume \n");
 248                 return -EINVAL;
 249         }
 250         DBG("(I) succeeded to set volume (%u, %u)\n", left_vol, right_vol);
 251         return 0;
 252 }
 253
 254
 255 /* output volume */
 256 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
 257                                       struct snd_ctl_elem_info *uinfo)
 258 {
 259         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 260         uinfo->count = 2;
 261         uinfo->value.integer.min = 0;
 262         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
 263         return 0;
 264 }
 265
 266 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
 267                                      struct snd_ctl_elem_value *ucontrol)
 268 {
 269         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 270         struct pmac_tumbler *mix = chip->mixer_data;
 271
 272         ucontrol->value.integer.value[0] = mix->master_vol[0];
 273         ucontrol->value.integer.value[1] = mix->master_vol[1];
 274         return 0;
 275 }
 276
 277 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
 278                                      struct snd_ctl_elem_value *ucontrol)
 279 {
 280         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 281         struct pmac_tumbler *mix = chip->mixer_data;
 282         unsigned int vol[2];
 283         int change;
 284
 285         vol[0] = ucontrol->value.integer.value[0];
 286         vol[1] = ucontrol->value.integer.value[1];
 287         if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
 288             vol[1] >= ARRAY_SIZE(master_volume_table))
 289                 return -EINVAL;
 290         change = mix->master_vol[0] != vol[0] ||
 291                 mix->master_vol[1] != vol[1];
 292         if (change) {
 293                 mix->master_vol[0] = vol[0];
 294                 mix->master_vol[1] = vol[1];
 295                 tumbler_set_master_volume(mix);
 296         }
 297         return change;
 298 }
 299
 300 /* output switch */
 301 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
 302                                      struct snd_ctl_elem_value *ucontrol)
 303 {
 304         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 305         struct pmac_tumbler *mix = chip->mixer_data;
 306
 307         ucontrol->value.integer.value[0] = mix->master_switch[0];
 308         ucontrol->value.integer.value[1] = mix->master_switch[1];
 309         return 0;
 310 }
 311
 312 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
 313                                      struct snd_ctl_elem_value *ucontrol)
 314 {
 315         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 316         struct pmac_tumbler *mix = chip->mixer_data;
 317         int change;
 318
 319         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
 320                 mix->master_switch[1] != ucontrol->value.integer.value[1];
 321         if (change) {
 322                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
 323                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
 324                 tumbler_set_master_volume(mix);
 325         }
 326         return change;
 327 }
 328
 329
 330 /*
 331  * TAS3001c dynamic range compression
 332  */
 333
 334 #define TAS3001_DRC_MAX         0x5f
 335
 336 static int tumbler_set_drc(struct pmac_tumbler *mix)
 337 {
 338         unsigned char val[2];
 339
 340         if (! mix->i2c.client)
 341                 return -ENODEV;
 342
 343         if (mix->drc_enable) {
 344                 val[0] = 0xc1; /* enable, 3:1 compression */
 345                 if (mix->drc_range > TAS3001_DRC_MAX)
 346                         val[1] = 0xf0;
 347                 else if (mix->drc_range < 0)
 348                         val[1] = 0x91;
 349                 else
 350                         val[1] = mix->drc_range + 0x91;
 351         } else {
 352                 val[0] = 0;
 353                 val[1] = 0;
 354         }
 355
 356         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 357                                            2, val) < 0) {
 358                 snd_printk(KERN_ERR "failed to set DRC\n");
 359                 return -EINVAL;
 360         }
 361         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
 362         return 0;
 363 }
 364
 365 /*
 366  * TAS3004
 367  */
 368
 369 #define TAS3004_DRC_MAX         0xef
 370
 371 static int snapper_set_drc(struct pmac_tumbler *mix)
 372 {
 373         unsigned char val[6];
 374
 375         if (! mix->i2c.client)
 376                 return -ENODEV;
 377
 378         if (mix->drc_enable)
 379                 val[0] = 0x50; /* 3:1 above threshold */
 380         else
 381                 val[0] = 0x51; /* disabled */
 382         val[1] = 0x02; /* 1:1 below threshold */
 383         if (mix->drc_range > 0xef)
 384                 val[2] = 0xef;
 385         else if (mix->drc_range < 0)
 386                 val[2] = 0x00;
 387         else
 388                 val[2] = mix->drc_range;
 389         val[3] = 0xb0;
 390         val[4] = 0x60;
 391         val[5] = 0xa0;
 392
 393         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 394                                            6, val) < 0) {
 395                 snd_printk(KERN_ERR "failed to set DRC\n");
 396                 return -EINVAL;
 397         }
 398         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
 399         return 0;
 400 }
 401
 402 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
 403                                   struct snd_ctl_elem_info *uinfo)
 404 {
 405         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 406         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 407         uinfo->count = 1;
 408         uinfo->value.integer.min = 0;
 409         uinfo->value.integer.max =
 410                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
 411         return 0;
 412 }
 413
 414 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
 415                                  struct snd_ctl_elem_value *ucontrol)
 416 {
 417         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 418         struct pmac_tumbler *mix;
 419         if (! (mix = chip->mixer_data))
 420                 return -ENODEV;
 421         ucontrol->value.integer.value[0] = mix->drc_range;
 422         return 0;
 423 }
 424
 425 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
 426                                  struct snd_ctl_elem_value *ucontrol)
 427 {
 428         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 429         struct pmac_tumbler *mix;
 430         unsigned int val;
 431         int change;
 432
 433         if (! (mix = chip->mixer_data))
 434                 return -ENODEV;
 435         val = ucontrol->value.integer.value[0];
 436         if (chip->model == PMAC_TUMBLER) {
 437                 if (val > TAS3001_DRC_MAX)
 438                         return -EINVAL;
 439         } else {
 440                 if (val > TAS3004_DRC_MAX)
 441                         return -EINVAL;
 442         }
 443         change = mix->drc_range != val;
 444         if (change) {
 445                 mix->drc_range = val;
 446                 if (chip->model == PMAC_TUMBLER)
 447                         tumbler_set_drc(mix);
 448                 else
 449                         snapper_set_drc(mix);
 450         }
 451         return change;
 452 }
 453
 454 static int tumbler_get_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         if (! (mix = chip->mixer_data))
 460                 return -ENODEV;
 461         ucontrol->value.integer.value[0] = mix->drc_enable;
 462         return 0;
 463 }
 464
 465 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
 466                                   struct snd_ctl_elem_value *ucontrol)
 467 {
 468         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 469         struct pmac_tumbler *mix;
 470         int change;
 471
 472         if (! (mix = chip->mixer_data))
 473                 return -ENODEV;
 474         change = mix->drc_enable != ucontrol->value.integer.value[0];
 475         if (change) {
 476                 mix->drc_enable = !!ucontrol->value.integer.value[0];
 477                 if (chip->model == PMAC_TUMBLER)
 478                         tumbler_set_drc(mix);
 479                 else
 480                         snapper_set_drc(mix);
 481         }
 482         return change;
 483 }
 484
 485
 486 /*
 487  * mono volumes
 488  */
 489
 490 struct tumbler_mono_vol {
 491         int index;
 492         int reg;
 493         int bytes;
 494         unsigned int max;
 495         unsigned int *table;
 496 };
 497
 498 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
 499                                    struct tumbler_mono_vol *info)
 500 {
 501         unsigned char block[4];
 502         unsigned int vol;
 503         int i;
 504
 505         if (! mix->i2c.client)
 506                 return -ENODEV;
 507
 508         vol = mix->mono_vol[info->index];
 509         if (vol >= info->max)
 510                 vol = info->max - 1;
 511         vol = info->table[vol];
 512         for (i = 0; i < info->bytes; i++)
 513                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
 514         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
 515                                            info->bytes, block) < 0) {
 516                 snd_printk(KERN_ERR "failed to set mono volume %d\n",
 517                            info->index);
 518                 return -EINVAL;
 519         }
 520         return 0;
 521 }
 522
 523 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
 524                              struct snd_ctl_elem_info *uinfo)
 525 {
 526         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 527
 528         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 529         uinfo->count = 1;
 530         uinfo->value.integer.min = 0;
 531         uinfo->value.integer.max = info->max - 1;
 532         return 0;
 533 }
 534
 535 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
 536                             struct snd_ctl_elem_value *ucontrol)
 537 {
 538         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 539         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 540         struct pmac_tumbler *mix;
 541         if (! (mix = chip->mixer_data))
 542                 return -ENODEV;
 543         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
 544         return 0;
 545 }
 546
 547 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
 548                             struct snd_ctl_elem_value *ucontrol)
 549 {
 550         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 551         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 552         struct pmac_tumbler *mix;
 553         unsigned int vol;
 554         int change;
 555
 556         if (! (mix = chip->mixer_data))
 557                 return -ENODEV;
 558         vol = ucontrol->value.integer.value[0];
 559         if (vol >= info->max)
 560                 return -EINVAL;
 561         change = mix->mono_vol[info->index] != vol;
 562         if (change) {
 563                 mix->mono_vol[info->index] = vol;
 564                 tumbler_set_mono_volume(mix, info);
 565         }
 566         return change;
 567 }
 568
 569 /* TAS3001c mono volumes */
 570 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
 571         .index = VOL_IDX_PCM_MONO,
 572         .reg = TAS_REG_PCM,
 573         .bytes = 3,
 574         .max = ARRAY_SIZE(mixer_volume_table),
 575         .table = mixer_volume_table,
 576 };
 577
 578 static struct tumbler_mono_vol tumbler_bass_vol_info = {
 579         .index = VOL_IDX_BASS,
 580         .reg = TAS_REG_BASS,
 581         .bytes = 1,
 582         .max = ARRAY_SIZE(bass_volume_table),
 583         .table = bass_volume_table,
 584 };
 585
 586 static struct tumbler_mono_vol tumbler_treble_vol_info = {
 587         .index = VOL_IDX_TREBLE,
 588         .reg = TAS_REG_TREBLE,
 589         .bytes = 1,
 590         .max = ARRAY_SIZE(treble_volume_table),
 591         .table = treble_volume_table,
 592 };
 593
 594 /* TAS3004 mono volumes */
 595 static struct tumbler_mono_vol snapper_bass_vol_info = {
 596         .index = VOL_IDX_BASS,
 597         .reg = TAS_REG_BASS,
 598         .bytes = 1,
 599         .max = ARRAY_SIZE(snapper_bass_volume_table),
 600         .table = snapper_bass_volume_table,
 601 };
 602
 603 static struct tumbler_mono_vol snapper_treble_vol_info = {
 604         .index = VOL_IDX_TREBLE,
 605         .reg = TAS_REG_TREBLE,
 606         .bytes = 1,
 607         .max = ARRAY_SIZE(snapper_treble_volume_table),
 608         .table = snapper_treble_volume_table,
 609 };
 610
 611
 612 #define DEFINE_MONO(xname,type) { \
 613         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 614         .name = xname, \
 615         .info = tumbler_info_mono, \
 616         .get = tumbler_get_mono, \
 617         .put = tumbler_put_mono, \
 618         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
 619 }
 620
 621 #define DEFINE_SNAPPER_MONO(xname,type) { \
 622         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 623         .name = xname, \
 624         .info = tumbler_info_mono, \
 625         .get = tumbler_get_mono, \
 626         .put = tumbler_put_mono, \
 627         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
 628 }
 629
 630
 631 /*
 632  * snapper mixer volumes
 633  */
 634
 635 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
 636 {
 637         int i, j, vol;
 638         unsigned char block[9];
 639
 640         vol = mix->mix_vol[idx][ch];
 641         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
 642                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
 643                 mix->mix_vol[idx][ch] = vol;
 644         }
 645
 646         for (i = 0; i < 3; i++) {
 647                 vol = mix->mix_vol[i][ch];
 648                 vol = mixer_volume_table[vol];
 649                 for (j = 0; j < 3; j++)
 650                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
 651         }
 652         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
 653                                            9, block) < 0) {
 654                 snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
 655                 return -EINVAL;
 656         }
 657         return 0;
 658 }
 659
 660 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
 661 {
 662         if (! mix->i2c.client)
 663                 return -ENODEV;
 664         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 665             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 666                 return -EINVAL;
 667         return 0;
 668 }
 669
 670 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
 671                             struct snd_ctl_elem_info *uinfo)
 672 {
 673         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 674         uinfo->count = 2;
 675         uinfo->value.integer.min = 0;
 676         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 677         return 0;
 678 }
 679
 680 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
 681                            struct snd_ctl_elem_value *ucontrol)
 682 {
 683         int idx = (int)kcontrol->private_value;
 684         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 685         struct pmac_tumbler *mix;
 686         if (! (mix = chip->mixer_data))
 687                 return -ENODEV;
 688         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 689         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 690         return 0;
 691 }
 692
 693 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
 694                            struct snd_ctl_elem_value *ucontrol)
 695 {
 696         int idx = (int)kcontrol->private_value;
 697         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 698         struct pmac_tumbler *mix;
 699         unsigned int vol[2];
 700         int change;
 701
 702         if (! (mix = chip->mixer_data))
 703                 return -ENODEV;
 704         vol[0] = ucontrol->value.integer.value[0];
 705         vol[1] = ucontrol->value.integer.value[1];
 706         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
 707             vol[1] >= ARRAY_SIZE(mixer_volume_table))
 708                 return -EINVAL;
 709         change = mix->mix_vol[idx][0] != vol[0] ||
 710                 mix->mix_vol[idx][1] != vol[1];
 711         if (change) {
 712                 mix->mix_vol[idx][0] = vol[0];
 713                 mix->mix_vol[idx][1] = vol[1];
 714                 snapper_set_mix_vol(mix, idx);
 715         }
 716         return change;
 717 }
 718
 719
 720 /*
 721  * mute switches. FIXME: Turn that into software mute when both outputs are muted
 722  * to avoid codec reset on ibook M7
 723  */
 724
 725 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
 726
 727 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
 728                                    struct snd_ctl_elem_value *ucontrol)
 729 {
 730         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 731         struct pmac_tumbler *mix;
 732         struct pmac_gpio *gp;
 733         if (! (mix = chip->mixer_data))
 734                 return -ENODEV;
 735         switch(kcontrol->private_value) {
 736         case TUMBLER_MUTE_HP:
 737                 gp = &mix->hp_mute;     break;
 738         case TUMBLER_MUTE_AMP:
 739                 gp = &mix->amp_mute;    break;
 740         case TUMBLER_MUTE_LINE:
 741                 gp = &mix->line_mute;   break;
 742         default:
 743                 gp = NULL;
 744         }
 745         if (gp == NULL)
 746                 return -EINVAL;
 747         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
 748         return 0;
 749 }
 750
 751 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
 752                                    struct snd_ctl_elem_value *ucontrol)
 753 {
 754         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 755         struct pmac_tumbler *mix;
 756         struct pmac_gpio *gp;
 757         int val;
 758 #ifdef PMAC_SUPPORT_AUTOMUTE
 759         if (chip->update_automute && chip->auto_mute)
 760                 return 0; /* don't touch in the auto-mute mode */
 761 #endif
 762         if (! (mix = chip->mixer_data))
 763                 return -ENODEV;
 764         switch(kcontrol->private_value) {
 765         case TUMBLER_MUTE_HP:
 766                 gp = &mix->hp_mute;     break;
 767         case TUMBLER_MUTE_AMP:
 768                 gp = &mix->amp_mute;    break;
 769         case TUMBLER_MUTE_LINE:
 770                 gp = &mix->line_mute;   break;
 771         default:
 772                 gp = NULL;
 773         }
 774         if (gp == NULL)
 775                 return -EINVAL;
 776         val = ! check_audio_gpio(gp);
 777         if (val != ucontrol->value.integer.value[0]) {
 778                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 779                 return 1;
 780         }
 781         return 0;
 782 }
 783
 784 static int snapper_set_capture_source(struct pmac_tumbler *mix)
 785 {
 786         if (! mix->i2c.client)
 787                 return -ENODEV;
 788         if (mix->capture_source)
 789                 mix->acs |= 2;
 790         else
 791                 mix->acs &= ~2;
 792         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
 793 }
 794
 795 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
 796                                        struct snd_ctl_elem_info *uinfo)
 797 {
 798         static const char * const texts[2] = {
 799                 "Line", "Mic"
 800         };
 801
 802         return snd_ctl_enum_info(uinfo, 1, 2, texts);
 803 }
 804
 805 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
 806                                       struct snd_ctl_elem_value *ucontrol)
 807 {
 808         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 809         struct pmac_tumbler *mix = chip->mixer_data;
 810
 811         ucontrol->value.enumerated.item[0] = mix->capture_source;
 812         return 0;
 813 }
 814
 815 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
 816                                       struct snd_ctl_elem_value *ucontrol)
 817 {
 818         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 819         struct pmac_tumbler *mix = chip->mixer_data;
 820         int change;
 821
 822         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
 823         if (change) {
 824                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
 825                 snapper_set_capture_source(mix);
 826         }
 827         return change;
 828 }
 829
 830 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 831         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 832         .name = xname, \
 833         .info = snapper_info_mix, \
 834         .get = snapper_get_mix, \
 835         .put = snapper_put_mix, \
 836         .index = idx,\
 837         .private_value = ofs, \
 838 }
 839
 840
 841 /*
 842  */
 843 static struct snd_kcontrol_new tumbler_mixers[] = {
 844         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 845           .name = "Master Playback Volume",
 846           .info = tumbler_info_master_volume,
 847           .get = tumbler_get_master_volume,
 848           .put = tumbler_put_master_volume
 849         },
 850         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 851           .name = "Master Playback Switch",
 852           .info = snd_pmac_boolean_stereo_info,
 853           .get = tumbler_get_master_switch,
 854           .put = tumbler_put_master_switch
 855         },
 856         DEFINE_MONO("Tone Control - Bass", bass),
 857         DEFINE_MONO("Tone Control - Treble", treble),
 858         DEFINE_MONO("PCM Playback Volume", pcm),
 859         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 860           .name = "DRC Range",
 861           .info = tumbler_info_drc_value,
 862           .get = tumbler_get_drc_value,
 863           .put = tumbler_put_drc_value
 864         },
 865 };
 866
 867 static struct snd_kcontrol_new snapper_mixers[] = {
 868         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 869           .name = "Master Playback Volume",
 870           .info = tumbler_info_master_volume,
 871           .get = tumbler_get_master_volume,
 872           .put = tumbler_put_master_volume
 873         },
 874         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 875           .name = "Master Playback Switch",
 876           .info = snd_pmac_boolean_stereo_info,
 877           .get = tumbler_get_master_switch,
 878           .put = tumbler_put_master_switch
 879         },
 880         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 881         /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
 882         DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
 883         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 884         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 885         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 886         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 887           .name = "DRC Range",
 888           .info = tumbler_info_drc_value,
 889           .get = tumbler_get_drc_value,
 890           .put = tumbler_put_drc_value
 891         },
 892         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 893           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 894           .info = snapper_info_capture_source,
 895           .get = snapper_get_capture_source,
 896           .put = snapper_put_capture_source
 897         },
 898 };
 899
 900 static const struct snd_kcontrol_new tumbler_hp_sw = {
 901         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 902         .name = "Headphone Playback Switch",
 903         .info = snd_pmac_boolean_mono_info,
 904         .get = tumbler_get_mute_switch,
 905         .put = tumbler_put_mute_switch,
 906         .private_value = TUMBLER_MUTE_HP,
 907 };
 908 static const struct snd_kcontrol_new tumbler_speaker_sw = {
 909         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 910         .name = "Speaker Playback Switch",
 911         .info = snd_pmac_boolean_mono_info,
 912         .get = tumbler_get_mute_switch,
 913         .put = tumbler_put_mute_switch,
 914         .private_value = TUMBLER_MUTE_AMP,
 915 };
 916 static const struct snd_kcontrol_new tumbler_lineout_sw = {
 917         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 918         .name = "Line Out Playback Switch",
 919         .info = snd_pmac_boolean_mono_info,
 920         .get = tumbler_get_mute_switch,
 921         .put = tumbler_put_mute_switch,
 922         .private_value = TUMBLER_MUTE_LINE,
 923 };
 924 static const struct snd_kcontrol_new tumbler_drc_sw = {
 925         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 926         .name = "DRC Switch",
 927         .info = snd_pmac_boolean_mono_info,
 928         .get = tumbler_get_drc_switch,
 929         .put = tumbler_put_drc_switch
 930 };
 931
 932
 933 #ifdef PMAC_SUPPORT_AUTOMUTE
 934 /*
 935  * auto-mute stuffs
 936  */
 937 static int tumbler_detect_headphone(struct snd_pmac *chip)
 938 {
 939         struct pmac_tumbler *mix = chip->mixer_data;
 940         int detect = 0;
 941
 942         if (mix->hp_detect.addr)
 943                 detect |= read_audio_gpio(&mix->hp_detect);
 944         return detect;
 945 }
 946
 947 static int tumbler_detect_lineout(struct snd_pmac *chip)
 948 {
 949         struct pmac_tumbler *mix = chip->mixer_data;
 950         int detect = 0;
 951
 952         if (mix->line_detect.addr)
 953                 detect |= read_audio_gpio(&mix->line_detect);
 954         return detect;
 955 }
 956
 957 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
 958                        struct snd_kcontrol *sw)
 959 {
 960         if (check_audio_gpio(gp) != val) {
 961                 write_audio_gpio(gp, val);
 962                 if (do_notify)
 963                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 964                                        &sw->id);
 965         }
 966 }
 967
 968 static struct work_struct device_change;
 969 static struct snd_pmac *device_change_chip;
 970
 971 static void device_change_handler(struct work_struct *work)
 972 {
 973         struct snd_pmac *chip = device_change_chip;
 974         struct pmac_tumbler *mix;
 975         int headphone, lineout;
 976
 977         if (!chip)
 978                 return;
 979
 980         mix = chip->mixer_data;
 981         if (snd_BUG_ON(!mix))
 982                 return;
 983
 984         headphone = tumbler_detect_headphone(chip);
 985         lineout = tumbler_detect_lineout(chip);
 986
 987         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
 988
 989         if (headphone || lineout) {
 990                 /* unmute headphone/lineout & mute speaker */
 991                 if (headphone)
 992                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
 993                                    chip->master_sw_ctl);
 994                 if (lineout && mix->line_mute.addr != 0)
 995                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
 996                                    chip->lineout_sw_ctl);
 997                 if (mix->anded_reset)
 998                         msleep(10);
 999                 check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
1000                            chip->speaker_sw_ctl);
1001         } else {
1002                 /* unmute speaker, mute others */
1003                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1004                            chip->speaker_sw_ctl);
1005                 if (mix->anded_reset)
1006                         msleep(10);
1007                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1008                            chip->master_sw_ctl);
1009                 if (mix->line_mute.addr != 0)
1010                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1011                                    chip->lineout_sw_ctl);
1012         }
1013         if (mix->auto_mute_notify)
1014                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1015                                        &chip->hp_detect_ctl->id);
1016
1017 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1018         mix->drc_enable = ! (headphone || lineout);
1019         if (mix->auto_mute_notify)
1020                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1021                                &chip->drc_sw_ctl->id);
1022         if (chip->model == PMAC_TUMBLER)
1023                 tumbler_set_drc(mix);
1024         else
1025                 snapper_set_drc(mix);
1026 #endif
1027
1028         /* reset the master volume so the correct amplification is applied */
1029         tumbler_set_master_volume(mix);
1030 }
1031
1032 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1033 {
1034         if (chip->auto_mute) {
1035                 struct pmac_tumbler *mix;
1036                 mix = chip->mixer_data;
1037                 if (snd_BUG_ON(!mix))
1038                         return;
1039                 mix->auto_mute_notify = do_notify;
1040                 schedule_work(&device_change);
1041         }
1042 }
1043 #endif /* PMAC_SUPPORT_AUTOMUTE */
1044
1045
1046 /* interrupt - headphone plug changed */
1047 static irqreturn_t headphone_intr(int irq, void *devid)
1048 {
1049         struct snd_pmac *chip = devid;
1050         if (chip->update_automute && chip->initialized) {
1051                 chip->update_automute(chip, 1);
1052                 return IRQ_HANDLED;
1053         }
1054         return IRQ_NONE;
1055 }
1056
1057 /* look for audio-gpio device */
1058 static struct device_node *find_audio_device(const char *name)
1059 {
1060         struct device_node *gpiop;
1061         struct device_node *np;
1062
1063         gpiop = of_find_node_by_name(NULL, "gpio");
1064         if (! gpiop)
1065                 return NULL;
1066
1067         for (np = of_get_next_child(gpiop, NULL); np;
1068                         np = of_get_next_child(gpiop, np)) {
1069                 const char *property = of_get_property(np, "audio-gpio", NULL);
1070                 if (property && strcmp(property, name) == 0)
1071                         break;
1072         }
1073         of_node_put(gpiop);
1074         return np;
1075 }
1076
1077 /* look for audio-gpio device */
1078 static struct device_node *find_compatible_audio_device(const char *name)
1079 {
1080         struct device_node *gpiop;
1081         struct device_node *np;
1082
1083         gpiop = of_find_node_by_name(NULL, "gpio");
1084         if (!gpiop)
1085                 return NULL;
1086
1087         for (np = of_get_next_child(gpiop, NULL); np;
1088                         np = of_get_next_child(gpiop, np)) {
1089                 if (of_device_is_compatible(np, name))
1090                         break;
1091         }
1092         of_node_put(gpiop);
1093         return np;
1094 }
1095
1096 /* find an audio device and get its address */
1097 static long tumbler_find_device(const char *device, const char *platform,
1098                                 struct pmac_gpio *gp, int is_compatible)
1099 {
1100         struct device_node *node;
1101         const u32 *base;
1102         u32 addr;
1103         long ret;
1104
1105         if (is_compatible)
1106                 node = find_compatible_audio_device(device);
1107         else
1108                 node = find_audio_device(device);
1109         if (! node) {
1110                 DBG("(W) cannot find audio device %s !\n", device);
1111                 snd_printdd("cannot find device %s\n", device);
1112                 return -ENODEV;
1113         }
1114
1115         base = of_get_property(node, "AAPL,address", NULL);
1116         if (! base) {
1117                 base = of_get_property(node, "reg", NULL);
1118                 if (!base) {
1119                         DBG("(E) cannot find address for device %s !\n", device);
1120                         snd_printd("cannot find address for device %s\n", device);
1121                         of_node_put(node);
1122                         return -ENODEV;
1123                 }
1124                 addr = *base;
1125                 if (addr < 0x50)
1126                         addr += 0x50;
1127         } else
1128                 addr = *base;
1129
1130         gp->addr = addr & 0x0000ffff;
1131         /* Try to find the active state, default to 0 ! */
1132         base = of_get_property(node, "audio-gpio-active-state", NULL);
1133         if (base) {
1134                 gp->active_state = *base;
1135                 gp->active_val = (*base) ? 0x5 : 0x4;
1136                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1137         } else {
1138                 const u32 *prop = NULL;
1139                 gp->active_state = IS_G4DA
1140                                 && !strncmp(device, "keywest-gpio1", 13);
1141                 gp->active_val = 0x4;
1142                 gp->inactive_val = 0x5;
1143                 /* Here are some crude hacks to extract the GPIO polarity and
1144                  * open collector informations out of the do-platform script
1145                  * as we don't yet have an interpreter for these things
1146                  */
1147                 if (platform)
1148                         prop = of_get_property(node, platform, NULL);
1149                 if (prop) {
1150                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1151                                 gp->active_val = 0xd;
1152                                 gp->inactive_val = 0xc;
1153                         }
1154                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1155                                 gp->active_val = 0x5;
1156                                 gp->inactive_val = 0x4;
1157                         }
1158                 }
1159         }
1160
1161         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1162             device, gp->addr, gp->active_state);
1163
1164         ret = irq_of_parse_and_map(node, 0);
1165         of_node_put(node);
1166         return ret;
1167 }
1168
1169 /* reset audio */
1170 static void tumbler_reset_audio(struct snd_pmac *chip)
1171 {
1172         struct pmac_tumbler *mix = chip->mixer_data;
1173
1174         if (mix->anded_reset) {
1175                 DBG("(I) codec anded reset !\n");
1176                 write_audio_gpio(&mix->hp_mute, 0);
1177                 write_audio_gpio(&mix->amp_mute, 0);
1178                 msleep(200);
1179                 write_audio_gpio(&mix->hp_mute, 1);
1180                 write_audio_gpio(&mix->amp_mute, 1);
1181                 msleep(100);
1182                 write_audio_gpio(&mix->hp_mute, 0);
1183                 write_audio_gpio(&mix->amp_mute, 0);
1184                 msleep(100);
1185         } else {
1186                 DBG("(I) codec normal reset !\n");
1187
1188                 write_audio_gpio(&mix->audio_reset, 0);
1189                 msleep(200);
1190                 write_audio_gpio(&mix->audio_reset, 1);
1191                 msleep(100);
1192                 write_audio_gpio(&mix->audio_reset, 0);
1193                 msleep(100);
1194         }
1195 }
1196
1197 #ifdef CONFIG_PM
1198 /* suspend mixer */
1199 static void tumbler_suspend(struct snd_pmac *chip)
1200 {
1201         struct pmac_tumbler *mix = chip->mixer_data;
1202
1203         if (mix->headphone_irq >= 0)
1204                 disable_irq(mix->headphone_irq);
1205         if (mix->lineout_irq >= 0)
1206                 disable_irq(mix->lineout_irq);
1207         mix->save_master_switch[0] = mix->master_switch[0];
1208         mix->save_master_switch[1] = mix->master_switch[1];
1209         mix->save_master_vol[0] = mix->master_vol[0];
1210         mix->save_master_vol[1] = mix->master_vol[1];
1211         mix->master_switch[0] = mix->master_switch[1] = 0;
1212         tumbler_set_master_volume(mix);
1213         if (!mix->anded_reset) {
1214                 write_audio_gpio(&mix->amp_mute, 1);
1215                 write_audio_gpio(&mix->hp_mute, 1);
1216         }
1217         if (chip->model == PMAC_SNAPPER) {
1218                 mix->acs |= 1;
1219                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1220         }
1221         if (mix->anded_reset) {
1222                 write_audio_gpio(&mix->amp_mute, 1);
1223                 write_audio_gpio(&mix->hp_mute, 1);
1224         } else
1225                 write_audio_gpio(&mix->audio_reset, 1);
1226 }
1227
1228 /* resume mixer */
1229 static void tumbler_resume(struct snd_pmac *chip)
1230 {
1231         struct pmac_tumbler *mix = chip->mixer_data;
1232
1233         mix->acs &= ~1;
1234         mix->master_switch[0] = mix->save_master_switch[0];
1235         mix->master_switch[1] = mix->save_master_switch[1];
1236         mix->master_vol[0] = mix->save_master_vol[0];
1237         mix->master_vol[1] = mix->save_master_vol[1];
1238         tumbler_reset_audio(chip);
1239         if (mix->i2c.client && mix->i2c.init_client) {
1240                 if (mix->i2c.init_client(&mix->i2c) < 0)
1241                         printk(KERN_ERR "tumbler_init_client error\n");
1242         } else
1243                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1244         if (chip->model == PMAC_TUMBLER) {
1245                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1246                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1247                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1248                 tumbler_set_drc(mix);
1249         } else {
1250                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1251                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1252                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1253                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1254                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1255                 snapper_set_drc(mix);
1256                 snapper_set_capture_source(mix);
1257         }
1258         tumbler_set_master_volume(mix);
1259         if (chip->update_automute)
1260                 chip->update_automute(chip, 0);
1261         if (mix->headphone_irq >= 0) {
1262                 unsigned char val;
1263
1264                 enable_irq(mix->headphone_irq);
1265                 /* activate headphone status interrupts */
1266                 val = do_gpio_read(&mix->hp_detect);
1267                 do_gpio_write(&mix->hp_detect, val | 0x80);
1268         }
1269         if (mix->lineout_irq >= 0)
1270                 enable_irq(mix->lineout_irq);
1271 }
1272 #endif
1273
1274 /* initialize tumbler */
1275 static int tumbler_init(struct snd_pmac *chip)
1276 {
1277         int irq;
1278         struct pmac_tumbler *mix = chip->mixer_data;
1279
1280         if (tumbler_find_device("audio-hw-reset",
1281                                 "platform-do-hw-reset",
1282                                 &mix->audio_reset, 0) < 0)
1283                 tumbler_find_device("hw-reset",
1284                                     "platform-do-hw-reset",
1285                                     &mix->audio_reset, 1);
1286         if (tumbler_find_device("amp-mute",
1287                                 "platform-do-amp-mute",
1288                                 &mix->amp_mute, 0) < 0)
1289                 tumbler_find_device("amp-mute",
1290                                     "platform-do-amp-mute",
1291                                     &mix->amp_mute, 1);
1292         if (tumbler_find_device("headphone-mute",
1293                                 "platform-do-headphone-mute",
1294                                 &mix->hp_mute, 0) < 0)
1295                 tumbler_find_device("headphone-mute",
1296                                     "platform-do-headphone-mute",
1297                                     &mix->hp_mute, 1);
1298         if (tumbler_find_device("line-output-mute",
1299                                 "platform-do-lineout-mute",
1300                                 &mix->line_mute, 0) < 0)
1301                 tumbler_find_device("line-output-mute",
1302                                    "platform-do-lineout-mute",
1303                                     &mix->line_mute, 1);
1304         irq = tumbler_find_device("headphone-detect",
1305                                   NULL, &mix->hp_detect, 0);
1306         if (irq <= 0)
1307                 irq = tumbler_find_device("headphone-detect",
1308                                           NULL, &mix->hp_detect, 1);
1309         if (irq <= 0)
1310                 irq = tumbler_find_device("keywest-gpio15",
1311                                           NULL, &mix->hp_detect, 1);
1312         mix->headphone_irq = irq;
1313         irq = tumbler_find_device("line-output-detect",
1314                                   NULL, &mix->line_detect, 0);
1315         if (irq <= 0)
1316                 irq = tumbler_find_device("line-output-detect",
1317                                           NULL, &mix->line_detect, 1);
1318         if (IS_G4DA && irq <= 0)
1319                 irq = tumbler_find_device("keywest-gpio16",
1320                                           NULL, &mix->line_detect, 1);
1321         mix->lineout_irq = irq;
1322
1323         tumbler_reset_audio(chip);
1324
1325         return 0;
1326 }
1327
1328 static void tumbler_cleanup(struct snd_pmac *chip)
1329 {
1330         struct pmac_tumbler *mix = chip->mixer_data;
1331         if (! mix)
1332                 return;
1333
1334         if (mix->headphone_irq >= 0)
1335                 free_irq(mix->headphone_irq, chip);
1336         if (mix->lineout_irq >= 0)
1337                 free_irq(mix->lineout_irq, chip);
1338         tumbler_gpio_free(&mix->audio_reset);
1339         tumbler_gpio_free(&mix->amp_mute);
1340         tumbler_gpio_free(&mix->hp_mute);
1341         tumbler_gpio_free(&mix->hp_detect);
1342         snd_pmac_keywest_cleanup(&mix->i2c);
1343         kfree(mix);
1344         chip->mixer_data = NULL;
1345 }
1346
1347 /* exported */
1348 int snd_pmac_tumbler_init(struct snd_pmac *chip)
1349 {
1350         int i, err;
1351         struct pmac_tumbler *mix;
1352         const u32 *paddr;
1353         struct device_node *tas_node, *np;
1354         char *chipname;
1355
1356         request_module("i2c-powermac");
1357
1358         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1359         if (! mix)
1360                 return -ENOMEM;
1361         mix->headphone_irq = -1;
1362
1363         chip->mixer_data = mix;
1364         chip->mixer_free = tumbler_cleanup;
1365         mix->anded_reset = 0;
1366         mix->reset_on_sleep = 1;
1367
1368         for (np = chip->node->child; np; np = np->sibling) {
1369                 if (!strcmp(np->name, "sound")) {
1370                         if (of_get_property(np, "has-anded-reset", NULL))
1371                                 mix->anded_reset = 1;
1372                         if (of_get_property(np, "layout-id", NULL))
1373                                 mix->reset_on_sleep = 0;
1374                         break;
1375                 }
1376         }
1377         if ((err = tumbler_init(chip)) < 0)
1378                 return err;
1379
1380         /* set up TAS */
1381         tas_node = of_find_node_by_name(NULL, "deq");
1382         if (tas_node == NULL)
1383                 tas_node = of_find_node_by_name(NULL, "codec");
1384         if (tas_node == NULL)
1385                 return -ENODEV;
1386
1387         paddr = of_get_property(tas_node, "i2c-address", NULL);
1388         if (paddr == NULL)
1389                 paddr = of_get_property(tas_node, "reg", NULL);
1390         if (paddr)
1391                 mix->i2c.addr = (*paddr) >> 1;
1392         else
1393                 mix->i2c.addr = TAS_I2C_ADDR;
1394         of_node_put(tas_node);
1395
1396         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1397
1398         if (chip->model == PMAC_TUMBLER) {
1399                 mix->i2c.init_client = tumbler_init_client;
1400                 mix->i2c.name = "TAS3001c";
1401                 chipname = "Tumbler";
1402         } else {
1403                 mix->i2c.init_client = snapper_init_client;
1404                 mix->i2c.name = "TAS3004";
1405                 chipname = "Snapper";
1406         }
1407
1408         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1409                 return err;
1410
1411         /*
1412          * build mixers
1413          */
1414         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1415
1416         if (chip->model == PMAC_TUMBLER) {
1417                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1418                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1419                                 return err;
1420                 }
1421         } else {
1422                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1423                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1424                                 return err;
1425                 }
1426         }
1427         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1428         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1429                 return err;
1430         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1431         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1432                 return err;
1433         if (mix->line_mute.addr != 0) {
1434                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1435                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1436                         return err;
1437         }
1438         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1439         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1440                 return err;
1441
1442         /* set initial DRC range to 60% */
1443         if (chip->model == PMAC_TUMBLER)
1444                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1445         else
1446                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1447         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1448         if (chip->model == PMAC_TUMBLER)
1449                 tumbler_set_drc(mix);
1450         else
1451                 snapper_set_drc(mix);
1452
1453 #ifdef CONFIG_PM
1454         chip->suspend = tumbler_suspend;
1455         chip->resume = tumbler_resume;
1456 #endif
1457
1458         INIT_WORK(&device_change, device_change_handler);
1459         device_change_chip = chip;
1460
1461 #ifdef PMAC_SUPPORT_AUTOMUTE
1462         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1463             && (err = snd_pmac_add_automute(chip)) < 0)
1464                 return err;
1465         chip->detect_headphone = tumbler_detect_headphone;
1466         chip->update_automute = tumbler_update_automute;
1467         tumbler_update_automute(chip, 0); /* update the status only */
1468
1469         /* activate headphone status interrupts */
1470         if (mix->headphone_irq >= 0) {
1471                 unsigned char val;
1472                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1473                                        "Sound Headphone Detection", chip)) < 0)
1474                         return 0;
1475                 /* activate headphone status interrupts */
1476                 val = do_gpio_read(&mix->hp_detect);
1477                 do_gpio_write(&mix->hp_detect, val | 0x80);
1478         }
1479         if (mix->lineout_irq >= 0) {
1480                 unsigned char val;
1481                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1482                                        "Sound Lineout Detection", chip)) < 0)
1483                         return 0;
1484                 /* activate headphone status interrupts */
1485                 val = do_gpio_read(&mix->line_detect);
1486                 do_gpio_write(&mix->line_detect, val | 0x80);
1487         }
1488 #endif
1489
1490         return 0;
1491 }