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 <sound/core.h>
  36 #include <asm/io.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 char *texts[2] = {
 799                 "Line", "Mic"
 800         };
 801         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 802         uinfo->count = 1;
 803         uinfo->value.enumerated.items = 2;
 804         if (uinfo->value.enumerated.item > 1)
 805                 uinfo->value.enumerated.item = 1;
 806         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 807         return 0;
 808 }
 809
 810 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
 811                                       struct snd_ctl_elem_value *ucontrol)
 812 {
 813         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 814         struct pmac_tumbler *mix = chip->mixer_data;
 815
 816         ucontrol->value.enumerated.item[0] = mix->capture_source;
 817         return 0;
 818 }
 819
 820 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
 821                                       struct snd_ctl_elem_value *ucontrol)
 822 {
 823         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 824         struct pmac_tumbler *mix = chip->mixer_data;
 825         int change;
 826
 827         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
 828         if (change) {
 829                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
 830                 snapper_set_capture_source(mix);
 831         }
 832         return change;
 833 }
 834
 835 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 836         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 837         .name = xname, \
 838         .info = snapper_info_mix, \
 839         .get = snapper_get_mix, \
 840         .put = snapper_put_mix, \
 841         .index = idx,\
 842         .private_value = ofs, \
 843 }
 844
 845
 846 /*
 847  */
 848 static struct snd_kcontrol_new tumbler_mixers[] = {
 849         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 850           .name = "Master Playback Volume",
 851           .info = tumbler_info_master_volume,
 852           .get = tumbler_get_master_volume,
 853           .put = tumbler_put_master_volume
 854         },
 855         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 856           .name = "Master Playback Switch",
 857           .info = snd_pmac_boolean_stereo_info,
 858           .get = tumbler_get_master_switch,
 859           .put = tumbler_put_master_switch
 860         },
 861         DEFINE_MONO("Tone Control - Bass", bass),
 862         DEFINE_MONO("Tone Control - Treble", treble),
 863         DEFINE_MONO("PCM Playback Volume", pcm),
 864         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 865           .name = "DRC Range",
 866           .info = tumbler_info_drc_value,
 867           .get = tumbler_get_drc_value,
 868           .put = tumbler_put_drc_value
 869         },
 870 };
 871
 872 static struct snd_kcontrol_new snapper_mixers[] = {
 873         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 874           .name = "Master Playback Volume",
 875           .info = tumbler_info_master_volume,
 876           .get = tumbler_get_master_volume,
 877           .put = tumbler_put_master_volume
 878         },
 879         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 880           .name = "Master Playback Switch",
 881           .info = snd_pmac_boolean_stereo_info,
 882           .get = tumbler_get_master_switch,
 883           .put = tumbler_put_master_switch
 884         },
 885         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 886         /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
 887         DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
 888         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 889         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 890         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 891         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 892           .name = "DRC Range",
 893           .info = tumbler_info_drc_value,
 894           .get = tumbler_get_drc_value,
 895           .put = tumbler_put_drc_value
 896         },
 897         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 898           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 899           .info = snapper_info_capture_source,
 900           .get = snapper_get_capture_source,
 901           .put = snapper_put_capture_source
 902         },
 903 };
 904
 905 static struct snd_kcontrol_new tumbler_hp_sw = {
 906         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 907         .name = "Headphone Playback Switch",
 908         .info = snd_pmac_boolean_mono_info,
 909         .get = tumbler_get_mute_switch,
 910         .put = tumbler_put_mute_switch,
 911         .private_value = TUMBLER_MUTE_HP,
 912 };
 913 static struct snd_kcontrol_new tumbler_speaker_sw = {
 914         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 915         .name = "Speaker Playback Switch",
 916         .info = snd_pmac_boolean_mono_info,
 917         .get = tumbler_get_mute_switch,
 918         .put = tumbler_put_mute_switch,
 919         .private_value = TUMBLER_MUTE_AMP,
 920 };
 921 static struct snd_kcontrol_new tumbler_lineout_sw = {
 922         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 923         .name = "Line Out Playback Switch",
 924         .info = snd_pmac_boolean_mono_info,
 925         .get = tumbler_get_mute_switch,
 926         .put = tumbler_put_mute_switch,
 927         .private_value = TUMBLER_MUTE_LINE,
 928 };
 929 static struct snd_kcontrol_new tumbler_drc_sw = {
 930         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 931         .name = "DRC Switch",
 932         .info = snd_pmac_boolean_mono_info,
 933         .get = tumbler_get_drc_switch,
 934         .put = tumbler_put_drc_switch
 935 };
 936
 937
 938 #ifdef PMAC_SUPPORT_AUTOMUTE
 939 /*
 940  * auto-mute stuffs
 941  */
 942 static int tumbler_detect_headphone(struct snd_pmac *chip)
 943 {
 944         struct pmac_tumbler *mix = chip->mixer_data;
 945         int detect = 0;
 946
 947         if (mix->hp_detect.addr)
 948                 detect |= read_audio_gpio(&mix->hp_detect);
 949         return detect;
 950 }
 951
 952 static int tumbler_detect_lineout(struct snd_pmac *chip)
 953 {
 954         struct pmac_tumbler *mix = chip->mixer_data;
 955         int detect = 0;
 956
 957         if (mix->line_detect.addr)
 958                 detect |= read_audio_gpio(&mix->line_detect);
 959         return detect;
 960 }
 961
 962 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
 963                        struct snd_kcontrol *sw)
 964 {
 965         if (check_audio_gpio(gp) != val) {
 966                 write_audio_gpio(gp, val);
 967                 if (do_notify)
 968                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 969                                        &sw->id);
 970         }
 971 }
 972
 973 static struct work_struct device_change;
 974 static struct snd_pmac *device_change_chip;
 975
 976 static void device_change_handler(struct work_struct *work)
 977 {
 978         struct snd_pmac *chip = device_change_chip;
 979         struct pmac_tumbler *mix;
 980         int headphone, lineout;
 981
 982         if (!chip)
 983                 return;
 984
 985         mix = chip->mixer_data;
 986         if (snd_BUG_ON(!mix))
 987                 return;
 988
 989         headphone = tumbler_detect_headphone(chip);
 990         lineout = tumbler_detect_lineout(chip);
 991
 992         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
 993
 994         if (headphone || lineout) {
 995                 /* unmute headphone/lineout & mute speaker */
 996                 if (headphone)
 997                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
 998                                    chip->master_sw_ctl);
 999                 if (lineout && mix->line_mute.addr != 0)
1000                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
1001                                    chip->lineout_sw_ctl);
1002                 if (mix->anded_reset)
1003                         msleep(10);
1004                 check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
1005                            chip->speaker_sw_ctl);
1006         } else {
1007                 /* unmute speaker, mute others */
1008                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1009                            chip->speaker_sw_ctl);
1010                 if (mix->anded_reset)
1011                         msleep(10);
1012                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1013                            chip->master_sw_ctl);
1014                 if (mix->line_mute.addr != 0)
1015                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1016                                    chip->lineout_sw_ctl);
1017         }
1018         if (mix->auto_mute_notify)
1019                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1020                                        &chip->hp_detect_ctl->id);
1021
1022 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1023         mix->drc_enable = ! (headphone || lineout);
1024         if (mix->auto_mute_notify)
1025                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1026                                &chip->drc_sw_ctl->id);
1027         if (chip->model == PMAC_TUMBLER)
1028                 tumbler_set_drc(mix);
1029         else
1030                 snapper_set_drc(mix);
1031 #endif
1032
1033         /* reset the master volume so the correct amplification is applied */
1034         tumbler_set_master_volume(mix);
1035 }
1036
1037 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1038 {
1039         if (chip->auto_mute) {
1040                 struct pmac_tumbler *mix;
1041                 mix = chip->mixer_data;
1042                 if (snd_BUG_ON(!mix))
1043                         return;
1044                 mix->auto_mute_notify = do_notify;
1045                 schedule_work(&device_change);
1046         }
1047 }
1048 #endif /* PMAC_SUPPORT_AUTOMUTE */
1049
1050
1051 /* interrupt - headphone plug changed */
1052 static irqreturn_t headphone_intr(int irq, void *devid)
1053 {
1054         struct snd_pmac *chip = devid;
1055         if (chip->update_automute && chip->initialized) {
1056                 chip->update_automute(chip, 1);
1057                 return IRQ_HANDLED;
1058         }
1059         return IRQ_NONE;
1060 }
1061
1062 /* look for audio-gpio device */
1063 static struct device_node *find_audio_device(const char *name)
1064 {
1065         struct device_node *gpiop;
1066         struct device_node *np;
1067
1068         gpiop = of_find_node_by_name(NULL, "gpio");
1069         if (! gpiop)
1070                 return NULL;
1071
1072         for (np = of_get_next_child(gpiop, NULL); np;
1073                         np = of_get_next_child(gpiop, np)) {
1074                 const char *property = of_get_property(np, "audio-gpio", NULL);
1075                 if (property && strcmp(property, name) == 0)
1076                         break;
1077         }
1078         of_node_put(gpiop);
1079         return np;
1080 }
1081
1082 /* look for audio-gpio device */
1083 static struct device_node *find_compatible_audio_device(const char *name)
1084 {
1085         struct device_node *gpiop;
1086         struct device_node *np;
1087
1088         gpiop = of_find_node_by_name(NULL, "gpio");
1089         if (!gpiop)
1090                 return NULL;
1091
1092         for (np = of_get_next_child(gpiop, NULL); np;
1093                         np = of_get_next_child(gpiop, np)) {
1094                 if (of_device_is_compatible(np, name))
1095                         break;
1096         }
1097         of_node_put(gpiop);
1098         return np;
1099 }
1100
1101 /* find an audio device and get its address */
1102 static long tumbler_find_device(const char *device, const char *platform,
1103                                 struct pmac_gpio *gp, int is_compatible)
1104 {
1105         struct device_node *node;
1106         const u32 *base;
1107         u32 addr;
1108         long ret;
1109
1110         if (is_compatible)
1111                 node = find_compatible_audio_device(device);
1112         else
1113                 node = find_audio_device(device);
1114         if (! node) {
1115                 DBG("(W) cannot find audio device %s !\n", device);
1116                 snd_printdd("cannot find device %s\n", device);
1117                 return -ENODEV;
1118         }
1119
1120         base = of_get_property(node, "AAPL,address", NULL);
1121         if (! base) {
1122                 base = of_get_property(node, "reg", NULL);
1123                 if (!base) {
1124                         DBG("(E) cannot find address for device %s !\n", device);
1125                         snd_printd("cannot find address for device %s\n", device);
1126                         of_node_put(node);
1127                         return -ENODEV;
1128                 }
1129                 addr = *base;
1130                 if (addr < 0x50)
1131                         addr += 0x50;
1132         } else
1133                 addr = *base;
1134
1135         gp->addr = addr & 0x0000ffff;
1136         /* Try to find the active state, default to 0 ! */
1137         base = of_get_property(node, "audio-gpio-active-state", NULL);
1138         if (base) {
1139                 gp->active_state = *base;
1140                 gp->active_val = (*base) ? 0x5 : 0x4;
1141                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1142         } else {
1143                 const u32 *prop = NULL;
1144                 gp->active_state = IS_G4DA
1145                                 && !strncmp(device, "keywest-gpio1", 13);
1146                 gp->active_val = 0x4;
1147                 gp->inactive_val = 0x5;
1148                 /* Here are some crude hacks to extract the GPIO polarity and
1149                  * open collector informations out of the do-platform script
1150                  * as we don't yet have an interpreter for these things
1151                  */
1152                 if (platform)
1153                         prop = of_get_property(node, platform, NULL);
1154                 if (prop) {
1155                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1156                                 gp->active_val = 0xd;
1157                                 gp->inactive_val = 0xc;
1158                         }
1159                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1160                                 gp->active_val = 0x5;
1161                                 gp->inactive_val = 0x4;
1162                         }
1163                 }
1164         }
1165
1166         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1167             device, gp->addr, gp->active_state);
1168
1169         ret = irq_of_parse_and_map(node, 0);
1170         of_node_put(node);
1171         return ret;
1172 }
1173
1174 /* reset audio */
1175 static void tumbler_reset_audio(struct snd_pmac *chip)
1176 {
1177         struct pmac_tumbler *mix = chip->mixer_data;
1178
1179         if (mix->anded_reset) {
1180                 DBG("(I) codec anded reset !\n");
1181                 write_audio_gpio(&mix->hp_mute, 0);
1182                 write_audio_gpio(&mix->amp_mute, 0);
1183                 msleep(200);
1184                 write_audio_gpio(&mix->hp_mute, 1);
1185                 write_audio_gpio(&mix->amp_mute, 1);
1186                 msleep(100);
1187                 write_audio_gpio(&mix->hp_mute, 0);
1188                 write_audio_gpio(&mix->amp_mute, 0);
1189                 msleep(100);
1190         } else {
1191                 DBG("(I) codec normal reset !\n");
1192
1193                 write_audio_gpio(&mix->audio_reset, 0);
1194                 msleep(200);
1195                 write_audio_gpio(&mix->audio_reset, 1);
1196                 msleep(100);
1197                 write_audio_gpio(&mix->audio_reset, 0);
1198                 msleep(100);
1199         }
1200 }
1201
1202 #ifdef CONFIG_PM
1203 /* suspend mixer */
1204 static void tumbler_suspend(struct snd_pmac *chip)
1205 {
1206         struct pmac_tumbler *mix = chip->mixer_data;
1207
1208         if (mix->headphone_irq >= 0)
1209                 disable_irq(mix->headphone_irq);
1210         if (mix->lineout_irq >= 0)
1211                 disable_irq(mix->lineout_irq);
1212         mix->save_master_switch[0] = mix->master_switch[0];
1213         mix->save_master_switch[1] = mix->master_switch[1];
1214         mix->save_master_vol[0] = mix->master_vol[0];
1215         mix->save_master_vol[1] = mix->master_vol[1];
1216         mix->master_switch[0] = mix->master_switch[1] = 0;
1217         tumbler_set_master_volume(mix);
1218         if (!mix->anded_reset) {
1219                 write_audio_gpio(&mix->amp_mute, 1);
1220                 write_audio_gpio(&mix->hp_mute, 1);
1221         }
1222         if (chip->model == PMAC_SNAPPER) {
1223                 mix->acs |= 1;
1224                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1225         }
1226         if (mix->anded_reset) {
1227                 write_audio_gpio(&mix->amp_mute, 1);
1228                 write_audio_gpio(&mix->hp_mute, 1);
1229         } else
1230                 write_audio_gpio(&mix->audio_reset, 1);
1231 }
1232
1233 /* resume mixer */
1234 static void tumbler_resume(struct snd_pmac *chip)
1235 {
1236         struct pmac_tumbler *mix = chip->mixer_data;
1237
1238         mix->acs &= ~1;
1239         mix->master_switch[0] = mix->save_master_switch[0];
1240         mix->master_switch[1] = mix->save_master_switch[1];
1241         mix->master_vol[0] = mix->save_master_vol[0];
1242         mix->master_vol[1] = mix->save_master_vol[1];
1243         tumbler_reset_audio(chip);
1244         if (mix->i2c.client && mix->i2c.init_client) {
1245                 if (mix->i2c.init_client(&mix->i2c) < 0)
1246                         printk(KERN_ERR "tumbler_init_client error\n");
1247         } else
1248                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1249         if (chip->model == PMAC_TUMBLER) {
1250                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1251                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1252                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1253                 tumbler_set_drc(mix);
1254         } else {
1255                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1256                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1257                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1258                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1259                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1260                 snapper_set_drc(mix);
1261                 snapper_set_capture_source(mix);
1262         }
1263         tumbler_set_master_volume(mix);
1264         if (chip->update_automute)
1265                 chip->update_automute(chip, 0);
1266         if (mix->headphone_irq >= 0) {
1267                 unsigned char val;
1268
1269                 enable_irq(mix->headphone_irq);
1270                 /* activate headphone status interrupts */
1271                 val = do_gpio_read(&mix->hp_detect);
1272                 do_gpio_write(&mix->hp_detect, val | 0x80);
1273         }
1274         if (mix->lineout_irq >= 0)
1275                 enable_irq(mix->lineout_irq);
1276 }
1277 #endif
1278
1279 /* initialize tumbler */
1280 static int tumbler_init(struct snd_pmac *chip)
1281 {
1282         int irq;
1283         struct pmac_tumbler *mix = chip->mixer_data;
1284
1285         if (tumbler_find_device("audio-hw-reset",
1286                                 "platform-do-hw-reset",
1287                                 &mix->audio_reset, 0) < 0)
1288                 tumbler_find_device("hw-reset",
1289                                     "platform-do-hw-reset",
1290                                     &mix->audio_reset, 1);
1291         if (tumbler_find_device("amp-mute",
1292                                 "platform-do-amp-mute",
1293                                 &mix->amp_mute, 0) < 0)
1294                 tumbler_find_device("amp-mute",
1295                                     "platform-do-amp-mute",
1296                                     &mix->amp_mute, 1);
1297         if (tumbler_find_device("headphone-mute",
1298                                 "platform-do-headphone-mute",
1299                                 &mix->hp_mute, 0) < 0)
1300                 tumbler_find_device("headphone-mute",
1301                                     "platform-do-headphone-mute",
1302                                     &mix->hp_mute, 1);
1303         if (tumbler_find_device("line-output-mute",
1304                                 "platform-do-lineout-mute",
1305                                 &mix->line_mute, 0) < 0)
1306                 tumbler_find_device("line-output-mute",
1307                                    "platform-do-lineout-mute",
1308                                     &mix->line_mute, 1);
1309         irq = tumbler_find_device("headphone-detect",
1310                                   NULL, &mix->hp_detect, 0);
1311         if (irq <= NO_IRQ)
1312                 irq = tumbler_find_device("headphone-detect",
1313                                           NULL, &mix->hp_detect, 1);
1314         if (irq <= NO_IRQ)
1315                 irq = tumbler_find_device("keywest-gpio15",
1316                                           NULL, &mix->hp_detect, 1);
1317         mix->headphone_irq = irq;
1318         irq = tumbler_find_device("line-output-detect",
1319                                   NULL, &mix->line_detect, 0);
1320         if (irq <= NO_IRQ)
1321                 irq = tumbler_find_device("line-output-detect",
1322                                           NULL, &mix->line_detect, 1);
1323         if (IS_G4DA && irq <= NO_IRQ)
1324                 irq = tumbler_find_device("keywest-gpio16",
1325                                           NULL, &mix->line_detect, 1);
1326         mix->lineout_irq = irq;
1327
1328         tumbler_reset_audio(chip);
1329
1330         return 0;
1331 }
1332
1333 static void tumbler_cleanup(struct snd_pmac *chip)
1334 {
1335         struct pmac_tumbler *mix = chip->mixer_data;
1336         if (! mix)
1337                 return;
1338
1339         if (mix->headphone_irq >= 0)
1340                 free_irq(mix->headphone_irq, chip);
1341         if (mix->lineout_irq >= 0)
1342                 free_irq(mix->lineout_irq, chip);
1343         tumbler_gpio_free(&mix->audio_reset);
1344         tumbler_gpio_free(&mix->amp_mute);
1345         tumbler_gpio_free(&mix->hp_mute);
1346         tumbler_gpio_free(&mix->hp_detect);
1347         snd_pmac_keywest_cleanup(&mix->i2c);
1348         kfree(mix);
1349         chip->mixer_data = NULL;
1350 }
1351
1352 /* exported */
1353 int snd_pmac_tumbler_init(struct snd_pmac *chip)
1354 {
1355         int i, err;
1356         struct pmac_tumbler *mix;
1357         const u32 *paddr;
1358         struct device_node *tas_node, *np;
1359         char *chipname;
1360
1361         request_module("i2c-powermac");
1362
1363         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1364         if (! mix)
1365                 return -ENOMEM;
1366         mix->headphone_irq = -1;
1367
1368         chip->mixer_data = mix;
1369         chip->mixer_free = tumbler_cleanup;
1370         mix->anded_reset = 0;
1371         mix->reset_on_sleep = 1;
1372
1373         for (np = chip->node->child; np; np = np->sibling) {
1374                 if (!strcmp(np->name, "sound")) {
1375                         if (of_get_property(np, "has-anded-reset", NULL))
1376                                 mix->anded_reset = 1;
1377                         if (of_get_property(np, "layout-id", NULL))
1378                                 mix->reset_on_sleep = 0;
1379                         break;
1380                 }
1381         }
1382         if ((err = tumbler_init(chip)) < 0)
1383                 return err;
1384
1385         /* set up TAS */
1386         tas_node = of_find_node_by_name(NULL, "deq");
1387         if (tas_node == NULL)
1388                 tas_node = of_find_node_by_name(NULL, "codec");
1389         if (tas_node == NULL)
1390                 return -ENODEV;
1391
1392         paddr = of_get_property(tas_node, "i2c-address", NULL);
1393         if (paddr == NULL)
1394                 paddr = of_get_property(tas_node, "reg", NULL);
1395         if (paddr)
1396                 mix->i2c.addr = (*paddr) >> 1;
1397         else
1398                 mix->i2c.addr = TAS_I2C_ADDR;
1399         of_node_put(tas_node);
1400
1401         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1402
1403         if (chip->model == PMAC_TUMBLER) {
1404                 mix->i2c.init_client = tumbler_init_client;
1405                 mix->i2c.name = "TAS3001c";
1406                 chipname = "Tumbler";
1407         } else {
1408                 mix->i2c.init_client = snapper_init_client;
1409                 mix->i2c.name = "TAS3004";
1410                 chipname = "Snapper";
1411         }
1412
1413         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1414                 return err;
1415
1416         /*
1417          * build mixers
1418          */
1419         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1420
1421         if (chip->model == PMAC_TUMBLER) {
1422                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1423                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1424                                 return err;
1425                 }
1426         } else {
1427                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1428                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1429                                 return err;
1430                 }
1431         }
1432         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1433         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1434                 return err;
1435         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1436         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1437                 return err;
1438         if (mix->line_mute.addr != 0) {
1439                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1440                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1441                         return err;
1442         }
1443         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1444         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1445                 return err;
1446
1447         /* set initial DRC range to 60% */
1448         if (chip->model == PMAC_TUMBLER)
1449                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1450         else
1451                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1452         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1453         if (chip->model == PMAC_TUMBLER)
1454                 tumbler_set_drc(mix);
1455         else
1456                 snapper_set_drc(mix);
1457
1458 #ifdef CONFIG_PM
1459         chip->suspend = tumbler_suspend;
1460         chip->resume = tumbler_resume;
1461 #endif
1462
1463         INIT_WORK(&device_change, device_change_handler);
1464         device_change_chip = chip;
1465
1466 #ifdef PMAC_SUPPORT_AUTOMUTE
1467         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1468             && (err = snd_pmac_add_automute(chip)) < 0)
1469                 return err;
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                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1478                                        "Sound Headphone Detection", chip)) < 0)
1479                         return 0;
1480                 /* activate headphone status interrupts */
1481                 val = do_gpio_read(&mix->hp_detect);
1482                 do_gpio_write(&mix->hp_detect, val | 0x80);
1483         }
1484         if (mix->lineout_irq >= 0) {
1485                 unsigned char val;
1486                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1487                                        "Sound Lineout Detection", chip)) < 0)
1488                         return 0;
1489                 /* activate headphone status interrupts */
1490                 val = do_gpio_read(&mix->line_detect);
1491                 do_gpio_write(&mix->line_detect, val | 0x80);
1492         }
1493 #endif
1494
1495         return 0;
1496 }