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