git.oblomov.eu Git - linux-2.6/blob - 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 <sound/driver.h>
  28 #include <linux/init.h>
  29 #include <linux/delay.h>
  30 #include <linux/i2c.h>
  31 #include <linux/kmod.h>
  32 #include <linux/slab.h>
  33 #include <linux/interrupt.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(fmt)
  46 #else
  47 #define DBG(fmt...)
  48 #endif
  49
  50 /* i2c address for tumbler */
  51 #define TAS_I2C_ADDR    0x34
  52
  53 /* registers */
  54 #define TAS_REG_MCS     0x01    /* main control */
  55 #define TAS_REG_DRC     0x02
  56 #define TAS_REG_VOL     0x04
  57 #define TAS_REG_TREBLE  0x05
  58 #define TAS_REG_BASS    0x06
  59 #define TAS_REG_INPUT1  0x07
  60 #define TAS_REG_INPUT2  0x08
  61
  62 /* tas3001c */
  63 #define TAS_REG_PCM     TAS_REG_INPUT1
  64
  65 /* tas3004 */
  66 #define TAS_REG_LMIX    TAS_REG_INPUT1
  67 #define TAS_REG_RMIX    TAS_REG_INPUT2
  68 #define TAS_REG_MCS2    0x43            /* main control 2 */
  69 #define TAS_REG_ACS     0x40            /* analog control */
  70
  71 /* mono volumes for tas3001c/tas3004 */
  72 enum {
  73         VOL_IDX_PCM_MONO, /* tas3001c only */
  74         VOL_IDX_BASS, VOL_IDX_TREBLE,
  75         VOL_IDX_LAST_MONO
  76 };
  77
  78 /* stereo volumes for tas3004 */
  79 enum {
  80         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
  81         VOL_IDX_LAST_MIX
  82 };
  83
  84 struct pmac_gpio {
  85         unsigned int addr;
  86         u8 active_val;
  87         u8 inactive_val;
  88         u8 active_state;
  89 };
  90
  91 struct pmac_tumbler {
  92         struct pmac_keywest i2c;
  93         struct pmac_gpio audio_reset;
  94         struct pmac_gpio amp_mute;
  95         struct pmac_gpio line_mute;
  96         struct pmac_gpio line_detect;
  97         struct pmac_gpio hp_mute;
  98         struct pmac_gpio hp_detect;
  99         int headphone_irq;
 100         int lineout_irq;
 101         unsigned int save_master_vol[2];
 102         unsigned int master_vol[2];
 103         unsigned int save_master_switch[2];
 104         unsigned int master_switch[2];
 105         unsigned int mono_vol[VOL_IDX_LAST_MONO];
 106         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
 107         int drc_range;
 108         int drc_enable;
 109         int capture_source;
 110         int anded_reset;
 111         int auto_mute_notify;
 112         int reset_on_sleep;
 113         u8  acs;
 114 };
 115
 116
 117 /*
 118  */
 119
 120 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
 121 {
 122         while (*regs > 0) {
 123                 int err, count = 10;
 124                 do {
 125                         err = i2c_smbus_write_byte_data(i2c->client,
 126                                                         regs[0], regs[1]);
 127                         if (err >= 0)
 128                                 break;
 129                         DBG("(W) i2c error %d\n", err);
 130                         mdelay(10);
 131                 } while (count--);
 132                 if (err < 0)
 133                         return -ENXIO;
 134                 regs += 2;
 135         }
 136         return 0;
 137 }
 138
 139
 140 static int tumbler_init_client(struct pmac_keywest *i2c)
 141 {
 142         static unsigned int regs[] = {
 143                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
 144                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
 145                 0, /* terminator */
 146         };
 147         DBG("(I) tumbler init client\n");
 148         return send_init_client(i2c, regs);
 149 }
 150
 151 static int snapper_init_client(struct pmac_keywest *i2c)
 152 {
 153         static unsigned int regs[] = {
 154                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
 155                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
 156                 /* normal operation, all-pass mode */
 157                 TAS_REG_MCS2, (1<<1),
 158                 /* normal output, no deemphasis, A input, power-up, line-in */
 159                 TAS_REG_ACS, 0,
 160                 0, /* terminator */
 161         };
 162         DBG("(I) snapper init client\n");
 163         return send_init_client(i2c, regs);
 164 }
 165
 166 /*
 167  * gpio access
 168  */
 169 #define do_gpio_write(gp, val) \
 170         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
 171 #define do_gpio_read(gp) \
 172         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
 173 #define tumbler_gpio_free(gp) /* NOP */
 174
 175 static void write_audio_gpio(struct pmac_gpio *gp, int active)
 176 {
 177         if (! gp->addr)
 178                 return;
 179         active = active ? gp->active_val : gp->inactive_val;
 180         do_gpio_write(gp, active);
 181         DBG("(I) gpio %x write %d\n", gp->addr, active);
 182 }
 183
 184 static int check_audio_gpio(struct pmac_gpio *gp)
 185 {
 186         int ret;
 187
 188         if (! gp->addr)
 189                 return 0;
 190
 191         ret = do_gpio_read(gp);
 192
 193         return (ret & 0x1) == (gp->active_val & 0x1);
 194 }
 195
 196 static int read_audio_gpio(struct pmac_gpio *gp)
 197 {
 198         int ret;
 199         if (! gp->addr)
 200                 return 0;
 201         ret = do_gpio_read(gp);
 202         ret = (ret & 0x02) !=0;
 203         return ret == gp->active_state;
 204 }
 205
 206 /*
 207  * update master volume
 208  */
 209 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
 210 {
 211         unsigned char block[6];
 212         unsigned int left_vol, right_vol;
 213
 214         if (! mix->i2c.client)
 215                 return -ENODEV;
 216
 217         if (! mix->master_switch[0])
 218                 left_vol = 0;
 219         else {
 220                 left_vol = mix->master_vol[0];
 221                 if (left_vol >= ARRAY_SIZE(master_volume_table))
 222                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
 223                 left_vol = master_volume_table[left_vol];
 224         }
 225         if (! mix->master_switch[1])
 226                 right_vol = 0;
 227         else {
 228                 right_vol = mix->master_vol[1];
 229                 if (right_vol >= ARRAY_SIZE(master_volume_table))
 230                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
 231                 right_vol = master_volume_table[right_vol];
 232         }
 233
 234         block[0] = (left_vol >> 16) & 0xff;
 235         block[1] = (left_vol >> 8)  & 0xff;
 236         block[2] = (left_vol >> 0)  & 0xff;
 237
 238         block[3] = (right_vol >> 16) & 0xff;
 239         block[4] = (right_vol >> 8)  & 0xff;
 240         block[5] = (right_vol >> 0)  & 0xff;
 241
 242         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
 243                                            block) < 0) {
 244                 snd_printk("failed to set volume \n");
 245                 return -EINVAL;
 246         }
 247         return 0;
 248 }
 249
 250
 251 /* output volume */
 252 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
 253                                       struct snd_ctl_elem_info *uinfo)
 254 {
 255         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 256         uinfo->count = 2;
 257         uinfo->value.integer.min = 0;
 258         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
 259         return 0;
 260 }
 261
 262 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
 263                                      struct snd_ctl_elem_value *ucontrol)
 264 {
 265         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 266         struct pmac_tumbler *mix = chip->mixer_data;
 267         snd_assert(mix, return -ENODEV);
 268         ucontrol->value.integer.value[0] = mix->master_vol[0];
 269         ucontrol->value.integer.value[1] = mix->master_vol[1];
 270         return 0;
 271 }
 272
 273 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
 274                                      struct snd_ctl_elem_value *ucontrol)
 275 {
 276         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 277         struct pmac_tumbler *mix = chip->mixer_data;
 278         int change;
 279
 280         snd_assert(mix, return -ENODEV);
 281         change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
 282                 mix->master_vol[1] != ucontrol->value.integer.value[1];
 283         if (change) {
 284                 mix->master_vol[0] = ucontrol->value.integer.value[0];
 285                 mix->master_vol[1] = ucontrol->value.integer.value[1];
 286                 tumbler_set_master_volume(mix);
 287         }
 288         return change;
 289 }
 290
 291 /* output switch */
 292 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
 293                                      struct snd_ctl_elem_value *ucontrol)
 294 {
 295         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 296         struct pmac_tumbler *mix = chip->mixer_data;
 297         snd_assert(mix, return -ENODEV);
 298         ucontrol->value.integer.value[0] = mix->master_switch[0];
 299         ucontrol->value.integer.value[1] = mix->master_switch[1];
 300         return 0;
 301 }
 302
 303 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
 304                                      struct snd_ctl_elem_value *ucontrol)
 305 {
 306         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 307         struct pmac_tumbler *mix = chip->mixer_data;
 308         int change;
 309
 310         snd_assert(mix, return -ENODEV);
 311         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
 312                 mix->master_switch[1] != ucontrol->value.integer.value[1];
 313         if (change) {
 314                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
 315                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
 316                 tumbler_set_master_volume(mix);
 317         }
 318         return change;
 319 }
 320
 321
 322 /*
 323  * TAS3001c dynamic range compression
 324  */
 325
 326 #define TAS3001_DRC_MAX         0x5f
 327
 328 static int tumbler_set_drc(struct pmac_tumbler *mix)
 329 {
 330         unsigned char val[2];
 331
 332         if (! mix->i2c.client)
 333                 return -ENODEV;
 334
 335         if (mix->drc_enable) {
 336                 val[0] = 0xc1; /* enable, 3:1 compression */
 337                 if (mix->drc_range > TAS3001_DRC_MAX)
 338                         val[1] = 0xf0;
 339                 else if (mix->drc_range < 0)
 340                         val[1] = 0x91;
 341                 else
 342                         val[1] = mix->drc_range + 0x91;
 343         } else {
 344                 val[0] = 0;
 345                 val[1] = 0;
 346         }
 347
 348         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 349                                            2, val) < 0) {
 350                 snd_printk("failed to set DRC\n");
 351                 return -EINVAL;
 352         }
 353         return 0;
 354 }
 355
 356 /*
 357  * TAS3004
 358  */
 359
 360 #define TAS3004_DRC_MAX         0xef
 361
 362 static int snapper_set_drc(struct pmac_tumbler *mix)
 363 {
 364         unsigned char val[6];
 365
 366         if (! mix->i2c.client)
 367                 return -ENODEV;
 368
 369         if (mix->drc_enable)
 370                 val[0] = 0x50; /* 3:1 above threshold */
 371         else
 372                 val[0] = 0x51; /* disabled */
 373         val[1] = 0x02; /* 1:1 below threshold */
 374         if (mix->drc_range > 0xef)
 375                 val[2] = 0xef;
 376         else if (mix->drc_range < 0)
 377                 val[2] = 0x00;
 378         else
 379                 val[2] = mix->drc_range;
 380         val[3] = 0xb0;
 381         val[4] = 0x60;
 382         val[5] = 0xa0;
 383
 384         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 385                                            6, val) < 0) {
 386                 snd_printk("failed to set DRC\n");
 387                 return -EINVAL;
 388         }
 389         return 0;
 390 }
 391
 392 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
 393                                   struct snd_ctl_elem_info *uinfo)
 394 {
 395         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 396         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 397         uinfo->count = 1;
 398         uinfo->value.integer.min = 0;
 399         uinfo->value.integer.max =
 400                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
 401         return 0;
 402 }
 403
 404 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
 405                                  struct snd_ctl_elem_value *ucontrol)
 406 {
 407         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 408         struct pmac_tumbler *mix;
 409         if (! (mix = chip->mixer_data))
 410                 return -ENODEV;
 411         ucontrol->value.integer.value[0] = mix->drc_range;
 412         return 0;
 413 }
 414
 415 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
 416                                  struct snd_ctl_elem_value *ucontrol)
 417 {
 418         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 419         struct pmac_tumbler *mix;
 420         int change;
 421
 422         if (! (mix = chip->mixer_data))
 423                 return -ENODEV;
 424         change = mix->drc_range != ucontrol->value.integer.value[0];
 425         if (change) {
 426                 mix->drc_range = ucontrol->value.integer.value[0];
 427                 if (chip->model == PMAC_TUMBLER)
 428                         tumbler_set_drc(mix);
 429                 else
 430                         snapper_set_drc(mix);
 431         }
 432         return change;
 433 }
 434
 435 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
 436                                   struct snd_ctl_elem_value *ucontrol)
 437 {
 438         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 439         struct pmac_tumbler *mix;
 440         if (! (mix = chip->mixer_data))
 441                 return -ENODEV;
 442         ucontrol->value.integer.value[0] = mix->drc_enable;
 443         return 0;
 444 }
 445
 446 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
 447                                   struct snd_ctl_elem_value *ucontrol)
 448 {
 449         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 450         struct pmac_tumbler *mix;
 451         int change;
 452
 453         if (! (mix = chip->mixer_data))
 454                 return -ENODEV;
 455         change = mix->drc_enable != ucontrol->value.integer.value[0];
 456         if (change) {
 457                 mix->drc_enable = !!ucontrol->value.integer.value[0];
 458                 if (chip->model == PMAC_TUMBLER)
 459                         tumbler_set_drc(mix);
 460                 else
 461                         snapper_set_drc(mix);
 462         }
 463         return change;
 464 }
 465
 466
 467 /*
 468  * mono volumes
 469  */
 470
 471 struct tumbler_mono_vol {
 472         int index;
 473         int reg;
 474         int bytes;
 475         unsigned int max;
 476         unsigned int *table;
 477 };
 478
 479 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
 480                                    struct tumbler_mono_vol *info)
 481 {
 482         unsigned char block[4];
 483         unsigned int vol;
 484         int i;
 485
 486         if (! mix->i2c.client)
 487                 return -ENODEV;
 488
 489         vol = mix->mono_vol[info->index];
 490         if (vol >= info->max)
 491                 vol = info->max - 1;
 492         vol = info->table[vol];
 493         for (i = 0; i < info->bytes; i++)
 494                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
 495         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
 496                                            info->bytes, block) < 0) {
 497                 snd_printk("failed to set mono volume %d\n", info->index);
 498                 return -EINVAL;
 499         }
 500         return 0;
 501 }
 502
 503 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
 504                              struct snd_ctl_elem_info *uinfo)
 505 {
 506         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 507
 508         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 509         uinfo->count = 1;
 510         uinfo->value.integer.min = 0;
 511         uinfo->value.integer.max = info->max - 1;
 512         return 0;
 513 }
 514
 515 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
 516                             struct snd_ctl_elem_value *ucontrol)
 517 {
 518         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 519         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 520         struct pmac_tumbler *mix;
 521         if (! (mix = chip->mixer_data))
 522                 return -ENODEV;
 523         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
 524         return 0;
 525 }
 526
 527 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
 528                             struct snd_ctl_elem_value *ucontrol)
 529 {
 530         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 531         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 532         struct pmac_tumbler *mix;
 533         int change;
 534
 535         if (! (mix = chip->mixer_data))
 536                 return -ENODEV;
 537         change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
 538         if (change) {
 539                 mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
 540                 tumbler_set_mono_volume(mix, info);
 541         }
 542         return change;
 543 }
 544
 545 /* TAS3001c mono volumes */
 546 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
 547         .index = VOL_IDX_PCM_MONO,
 548         .reg = TAS_REG_PCM,
 549         .bytes = 3,
 550         .max = ARRAY_SIZE(mixer_volume_table),
 551         .table = mixer_volume_table,
 552 };
 553
 554 static struct tumbler_mono_vol tumbler_bass_vol_info = {
 555         .index = VOL_IDX_BASS,
 556         .reg = TAS_REG_BASS,
 557         .bytes = 1,
 558         .max = ARRAY_SIZE(bass_volume_table),
 559         .table = bass_volume_table,
 560 };
 561
 562 static struct tumbler_mono_vol tumbler_treble_vol_info = {
 563         .index = VOL_IDX_TREBLE,
 564         .reg = TAS_REG_TREBLE,
 565         .bytes = 1,
 566         .max = ARRAY_SIZE(treble_volume_table),
 567         .table = treble_volume_table,
 568 };
 569
 570 /* TAS3004 mono volumes */
 571 static struct tumbler_mono_vol snapper_bass_vol_info = {
 572         .index = VOL_IDX_BASS,
 573         .reg = TAS_REG_BASS,
 574         .bytes = 1,
 575         .max = ARRAY_SIZE(snapper_bass_volume_table),
 576         .table = snapper_bass_volume_table,
 577 };
 578
 579 static struct tumbler_mono_vol snapper_treble_vol_info = {
 580         .index = VOL_IDX_TREBLE,
 581         .reg = TAS_REG_TREBLE,
 582         .bytes = 1,
 583         .max = ARRAY_SIZE(snapper_treble_volume_table),
 584         .table = snapper_treble_volume_table,
 585 };
 586
 587
 588 #define DEFINE_MONO(xname,type) { \
 589         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 590         .name = xname, \
 591         .info = tumbler_info_mono, \
 592         .get = tumbler_get_mono, \
 593         .put = tumbler_put_mono, \
 594         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
 595 }
 596
 597 #define DEFINE_SNAPPER_MONO(xname,type) { \
 598         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 599         .name = xname, \
 600         .info = tumbler_info_mono, \
 601         .get = tumbler_get_mono, \
 602         .put = tumbler_put_mono, \
 603         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
 604 }
 605
 606
 607 /*
 608  * snapper mixer volumes
 609  */
 610
 611 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
 612 {
 613         int i, j, vol;
 614         unsigned char block[9];
 615
 616         vol = mix->mix_vol[idx][ch];
 617         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
 618                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
 619                 mix->mix_vol[idx][ch] = vol;
 620         }
 621
 622         for (i = 0; i < 3; i++) {
 623                 vol = mix->mix_vol[i][ch];
 624                 vol = mixer_volume_table[vol];
 625                 for (j = 0; j < 3; j++)
 626                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
 627         }
 628         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
 629                                            9, block) < 0) {
 630                 snd_printk("failed to set mono volume %d\n", reg);
 631                 return -EINVAL;
 632         }
 633         return 0;
 634 }
 635
 636 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
 637 {
 638         if (! mix->i2c.client)
 639                 return -ENODEV;
 640         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 641             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 642                 return -EINVAL;
 643         return 0;
 644 }
 645
 646 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
 647                             struct snd_ctl_elem_info *uinfo)
 648 {
 649         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 650         uinfo->count = 2;
 651         uinfo->value.integer.min = 0;
 652         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 653         return 0;
 654 }
 655
 656 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
 657                            struct snd_ctl_elem_value *ucontrol)
 658 {
 659         int idx = (int)kcontrol->private_value;
 660         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 661         struct pmac_tumbler *mix;
 662         if (! (mix = chip->mixer_data))
 663                 return -ENODEV;
 664         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 665         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 666         return 0;
 667 }
 668
 669 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
 670                            struct snd_ctl_elem_value *ucontrol)
 671 {
 672         int idx = (int)kcontrol->private_value;
 673         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 674         struct pmac_tumbler *mix;
 675         int change;
 676
 677         if (! (mix = chip->mixer_data))
 678                 return -ENODEV;
 679         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
 680                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
 681         if (change) {
 682                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
 683                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
 684                 snapper_set_mix_vol(mix, idx);
 685         }
 686         return change;
 687 }
 688
 689
 690 /*
 691  * mute switches. FIXME: Turn that into software mute when both outputs are muted
 692  * to avoid codec reset on ibook M7
 693  */
 694
 695 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
 696
 697 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
 698                                    struct snd_ctl_elem_value *ucontrol)
 699 {
 700         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 701         struct pmac_tumbler *mix;
 702         struct pmac_gpio *gp;
 703         if (! (mix = chip->mixer_data))
 704                 return -ENODEV;
 705         switch(kcontrol->private_value) {
 706         case TUMBLER_MUTE_HP:
 707                 gp = &mix->hp_mute;     break;
 708         case TUMBLER_MUTE_AMP:
 709                 gp = &mix->amp_mute;    break;
 710         case TUMBLER_MUTE_LINE:
 711                 gp = &mix->line_mute;   break;
 712         default:
 713                 gp = NULL;
 714         }
 715         if (gp == NULL)
 716                 return -EINVAL;
 717         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
 718         return 0;
 719 }
 720
 721 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
 722                                    struct snd_ctl_elem_value *ucontrol)
 723 {
 724         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 725         struct pmac_tumbler *mix;
 726         struct pmac_gpio *gp;
 727         int val;
 728 #ifdef PMAC_SUPPORT_AUTOMUTE
 729         if (chip->update_automute && chip->auto_mute)
 730                 return 0; /* don't touch in the auto-mute mode */
 731 #endif
 732         if (! (mix = chip->mixer_data))
 733                 return -ENODEV;
 734         switch(kcontrol->private_value) {
 735         case TUMBLER_MUTE_HP:
 736                 gp = &mix->hp_mute;     break;
 737         case TUMBLER_MUTE_AMP:
 738                 gp = &mix->amp_mute;    break;
 739         case TUMBLER_MUTE_LINE:
 740                 gp = &mix->line_mute;   break;
 741         default:
 742                 gp = NULL;
 743         }
 744         if (gp == NULL)
 745                 return -EINVAL;
 746         val = ! check_audio_gpio(gp);
 747         if (val != ucontrol->value.integer.value[0]) {
 748                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 749                 return 1;
 750         }
 751         return 0;
 752 }
 753
 754 static int snapper_set_capture_source(struct pmac_tumbler *mix)
 755 {
 756         if (! mix->i2c.client)
 757                 return -ENODEV;
 758         if (mix->capture_source)
 759                 mix->acs = mix->acs |= 2;
 760         else
 761                 mix->acs &= ~2;
 762         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
 763 }
 764
 765 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
 766                                        struct snd_ctl_elem_info *uinfo)
 767 {
 768         static char *texts[2] = {
 769                 "Line", "Mic"
 770         };
 771         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 772         uinfo->count = 1;
 773         uinfo->value.enumerated.items = 2;
 774         if (uinfo->value.enumerated.item > 1)
 775                 uinfo->value.enumerated.item = 1;
 776         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 777         return 0;
 778 }
 779
 780 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
 781                                       struct snd_ctl_elem_value *ucontrol)
 782 {
 783         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 784         struct pmac_tumbler *mix = chip->mixer_data;
 785
 786         snd_assert(mix, return -ENODEV);
 787         ucontrol->value.integer.value[0] = mix->capture_source;
 788         return 0;
 789 }
 790
 791 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
 792                                       struct snd_ctl_elem_value *ucontrol)
 793 {
 794         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 795         struct pmac_tumbler *mix = chip->mixer_data;
 796         int change;
 797
 798         snd_assert(mix, return -ENODEV);
 799         change = ucontrol->value.integer.value[0] != mix->capture_source;
 800         if (change) {
 801                 mix->capture_source = !!ucontrol->value.integer.value[0];
 802                 snapper_set_capture_source(mix);
 803         }
 804         return change;
 805 }
 806
 807 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 808         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 809         .name = xname, \
 810         .info = snapper_info_mix, \
 811         .get = snapper_get_mix, \
 812         .put = snapper_put_mix, \
 813         .index = idx,\
 814         .private_value = ofs, \
 815 }
 816
 817
 818 /*
 819  */
 820 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
 821         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 822           .name = "Master Playback Volume",
 823           .info = tumbler_info_master_volume,
 824           .get = tumbler_get_master_volume,
 825           .put = tumbler_put_master_volume
 826         },
 827         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 828           .name = "Master Playback Switch",
 829           .info = snd_pmac_boolean_stereo_info,
 830           .get = tumbler_get_master_switch,
 831           .put = tumbler_put_master_switch
 832         },
 833         DEFINE_MONO("Tone Control - Bass", bass),
 834         DEFINE_MONO("Tone Control - Treble", treble),
 835         DEFINE_MONO("PCM Playback Volume", pcm),
 836         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 837           .name = "DRC Range",
 838           .info = tumbler_info_drc_value,
 839           .get = tumbler_get_drc_value,
 840           .put = tumbler_put_drc_value
 841         },
 842 };
 843
 844 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
 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_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 858         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
 859         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 860         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 861         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 862         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 863           .name = "DRC Range",
 864           .info = tumbler_info_drc_value,
 865           .get = tumbler_get_drc_value,
 866           .put = tumbler_put_drc_value
 867         },
 868         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 869           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 870           .info = snapper_info_capture_source,
 871           .get = snapper_get_capture_source,
 872           .put = snapper_put_capture_source
 873         },
 874 };
 875
 876 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
 877         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 878         .name = "Headphone Playback Switch",
 879         .info = snd_pmac_boolean_mono_info,
 880         .get = tumbler_get_mute_switch,
 881         .put = tumbler_put_mute_switch,
 882         .private_value = TUMBLER_MUTE_HP,
 883 };
 884 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
 885         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 886         .name = "PC Speaker Playback Switch",
 887         .info = snd_pmac_boolean_mono_info,
 888         .get = tumbler_get_mute_switch,
 889         .put = tumbler_put_mute_switch,
 890         .private_value = TUMBLER_MUTE_AMP,
 891 };
 892 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
 893         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 894         .name = "Line Out Playback Switch",
 895         .info = snd_pmac_boolean_mono_info,
 896         .get = tumbler_get_mute_switch,
 897         .put = tumbler_put_mute_switch,
 898         .private_value = TUMBLER_MUTE_LINE,
 899 };
 900 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
 901         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 902         .name = "DRC Switch",
 903         .info = snd_pmac_boolean_mono_info,
 904         .get = tumbler_get_drc_switch,
 905         .put = tumbler_put_drc_switch
 906 };
 907
 908
 909 #ifdef PMAC_SUPPORT_AUTOMUTE
 910 /*
 911  * auto-mute stuffs
 912  */
 913 static int tumbler_detect_headphone(struct snd_pmac *chip)
 914 {
 915         struct pmac_tumbler *mix = chip->mixer_data;
 916         int detect = 0;
 917
 918         if (mix->hp_detect.addr)
 919                 detect |= read_audio_gpio(&mix->hp_detect);
 920         return detect;
 921 }
 922
 923 static int tumbler_detect_lineout(struct snd_pmac *chip)
 924 {
 925         struct pmac_tumbler *mix = chip->mixer_data;
 926         int detect = 0;
 927
 928         if (mix->line_detect.addr)
 929                 detect |= read_audio_gpio(&mix->line_detect);
 930         return detect;
 931 }
 932
 933 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
 934                        struct snd_kcontrol *sw)
 935 {
 936         if (check_audio_gpio(gp) != val) {
 937                 write_audio_gpio(gp, val);
 938                 if (do_notify)
 939                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 940                                        &sw->id);
 941         }
 942 }
 943
 944 static struct work_struct device_change;
 945
 946 static void device_change_handler(void *self)
 947 {
 948         struct snd_pmac *chip = self;
 949         struct pmac_tumbler *mix;
 950         int headphone, lineout;
 951
 952         if (!chip)
 953                 return;
 954
 955         mix = chip->mixer_data;
 956         snd_assert(mix, return);
 957
 958         headphone = tumbler_detect_headphone(chip);
 959         lineout = tumbler_detect_lineout(chip);
 960
 961         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
 962
 963         if (headphone || lineout) {
 964                 /* unmute headphone/lineout & mute speaker */
 965                 if (headphone)
 966                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
 967                                    chip->master_sw_ctl);
 968                 if (lineout && mix->line_mute.addr != 0)
 969                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
 970                                    chip->lineout_sw_ctl);
 971                 if (mix->anded_reset)
 972                         msleep(10);
 973                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
 974                            chip->speaker_sw_ctl);
 975         } else {
 976                 /* unmute speaker, mute others */
 977                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
 978                            chip->speaker_sw_ctl);
 979                 if (mix->anded_reset)
 980                         msleep(10);
 981                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
 982                            chip->master_sw_ctl);
 983                 if (mix->line_mute.addr != 0)
 984                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
 985                                    chip->lineout_sw_ctl);
 986         }
 987         if (mix->auto_mute_notify)
 988                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 989                                        &chip->hp_detect_ctl->id);
 990
 991 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
 992         mix->drc_enable = ! (headphone || lineout);
 993         if (mix->auto_mute_notify)
 994                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 995                                &chip->drc_sw_ctl->id);
 996         if (chip->model == PMAC_TUMBLER)
 997                 tumbler_set_drc(mix);
 998         else
 999                 snapper_set_drc(mix);
1000 #endif
1001
1002         /* reset the master volume so the correct amplification is applied */
1003         tumbler_set_master_volume(mix);
1004 }
1005
1006 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1007 {
1008         if (chip->auto_mute) {
1009                 struct pmac_tumbler *mix;
1010                 mix = chip->mixer_data;
1011                 snd_assert(mix, return);
1012                 mix->auto_mute_notify = do_notify;
1013                 schedule_work(&device_change);
1014         }
1015 }
1016 #endif /* PMAC_SUPPORT_AUTOMUTE */
1017
1018
1019 /* interrupt - headphone plug changed */
1020 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
1021 {
1022         struct snd_pmac *chip = devid;
1023         if (chip->update_automute && chip->initialized) {
1024                 chip->update_automute(chip, 1);
1025                 return IRQ_HANDLED;
1026         }
1027         return IRQ_NONE;
1028 }
1029
1030 /* look for audio-gpio device */
1031 static struct device_node *find_audio_device(const char *name)
1032 {
1033         struct device_node *np;
1034
1035         if (! (np = find_devices("gpio")))
1036                 return NULL;
1037
1038         for (np = np->child; np; np = np->sibling) {
1039                 const char *property = get_property(np, "audio-gpio", NULL);
1040                 if (property && strcmp(property, name) == 0)
1041                         return np;
1042         }
1043         return NULL;
1044 }
1045
1046 /* look for audio-gpio device */
1047 static struct device_node *find_compatible_audio_device(const char *name)
1048 {
1049         struct device_node *np;
1050
1051         if (! (np = find_devices("gpio")))
1052                 return NULL;
1053
1054         for (np = np->child; np; np = np->sibling) {
1055                 if (device_is_compatible(np, name))
1056                         return np;
1057         }
1058         return NULL;
1059 }
1060
1061 /* find an audio device and get its address */
1062 static long tumbler_find_device(const char *device, const char *platform,
1063                                 struct pmac_gpio *gp, int is_compatible)
1064 {
1065         struct device_node *node;
1066         const u32 *base;
1067         u32 addr;
1068
1069         if (is_compatible)
1070                 node = find_compatible_audio_device(device);
1071         else
1072                 node = find_audio_device(device);
1073         if (! node) {
1074                 DBG("(W) cannot find audio device %s !\n", device);
1075                 snd_printdd("cannot find device %s\n", device);
1076                 return -ENODEV;
1077         }
1078
1079         base = get_property(node, "AAPL,address", NULL);
1080         if (! base) {
1081                 base = get_property(node, "reg", NULL);
1082                 if (!base) {
1083                         DBG("(E) cannot find address for device %s !\n", device);
1084                         snd_printd("cannot find address for device %s\n", device);
1085                         return -ENODEV;
1086                 }
1087                 addr = *base;
1088                 if (addr < 0x50)
1089                         addr += 0x50;
1090         } else
1091                 addr = *base;
1092
1093         gp->addr = addr & 0x0000ffff;
1094         /* Try to find the active state, default to 0 ! */
1095         base = get_property(node, "audio-gpio-active-state", NULL);
1096         if (base) {
1097                 gp->active_state = *base;
1098                 gp->active_val = (*base) ? 0x5 : 0x4;
1099                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1100         } else {
1101                 const u32 *prop = NULL;
1102                 gp->active_state = 0;
1103                 gp->active_val = 0x4;
1104                 gp->inactive_val = 0x5;
1105                 /* Here are some crude hacks to extract the GPIO polarity and
1106                  * open collector informations out of the do-platform script
1107                  * as we don't yet have an interpreter for these things
1108                  */
1109                 if (platform)
1110                         prop = get_property(node, platform, NULL);
1111                 if (prop) {
1112                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1113                                 gp->active_val = 0xd;
1114                                 gp->inactive_val = 0xc;
1115                         }
1116                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1117                                 gp->active_val = 0x5;
1118                                 gp->inactive_val = 0x4;
1119                         }
1120                 }
1121         }
1122
1123         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1124             device, gp->addr, gp->active_state);
1125
1126         return irq_of_parse_and_map(node, 0);
1127 }
1128
1129 /* reset audio */
1130 static void tumbler_reset_audio(struct snd_pmac *chip)
1131 {
1132         struct pmac_tumbler *mix = chip->mixer_data;
1133
1134         if (mix->anded_reset) {
1135                 DBG("(I) codec anded reset !\n");
1136                 write_audio_gpio(&mix->hp_mute, 0);
1137                 write_audio_gpio(&mix->amp_mute, 0);
1138                 msleep(200);
1139                 write_audio_gpio(&mix->hp_mute, 1);
1140                 write_audio_gpio(&mix->amp_mute, 1);
1141                 msleep(100);
1142                 write_audio_gpio(&mix->hp_mute, 0);
1143                 write_audio_gpio(&mix->amp_mute, 0);
1144                 msleep(100);
1145         } else {
1146                 DBG("(I) codec normal reset !\n");
1147
1148                 write_audio_gpio(&mix->audio_reset, 0);
1149                 msleep(200);
1150                 write_audio_gpio(&mix->audio_reset, 1);
1151                 msleep(100);
1152                 write_audio_gpio(&mix->audio_reset, 0);
1153                 msleep(100);
1154         }
1155 }
1156
1157 #ifdef CONFIG_PM
1158 /* suspend mixer */
1159 static void tumbler_suspend(struct snd_pmac *chip)
1160 {
1161         struct pmac_tumbler *mix = chip->mixer_data;
1162
1163         if (mix->headphone_irq >= 0)
1164                 disable_irq(mix->headphone_irq);
1165         if (mix->lineout_irq >= 0)
1166                 disable_irq(mix->lineout_irq);
1167         mix->save_master_switch[0] = mix->master_switch[0];
1168         mix->save_master_switch[1] = mix->master_switch[1];
1169         mix->save_master_vol[0] = mix->master_vol[0];
1170         mix->save_master_vol[1] = mix->master_vol[1];
1171         mix->master_switch[0] = mix->master_switch[1] = 0;
1172         tumbler_set_master_volume(mix);
1173         if (!mix->anded_reset) {
1174                 write_audio_gpio(&mix->amp_mute, 1);
1175                 write_audio_gpio(&mix->hp_mute, 1);
1176         }
1177         if (chip->model == PMAC_SNAPPER) {
1178                 mix->acs |= 1;
1179                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1180         }
1181         if (mix->anded_reset) {
1182                 write_audio_gpio(&mix->amp_mute, 1);
1183                 write_audio_gpio(&mix->hp_mute, 1);
1184         } else
1185                 write_audio_gpio(&mix->audio_reset, 1);
1186 }
1187
1188 /* resume mixer */
1189 static void tumbler_resume(struct snd_pmac *chip)
1190 {
1191         struct pmac_tumbler *mix = chip->mixer_data;
1192
1193         snd_assert(mix, return);
1194
1195         mix->acs &= ~1;
1196         mix->master_switch[0] = mix->save_master_switch[0];
1197         mix->master_switch[1] = mix->save_master_switch[1];
1198         mix->master_vol[0] = mix->save_master_vol[0];
1199         mix->master_vol[1] = mix->save_master_vol[1];
1200         tumbler_reset_audio(chip);
1201         if (mix->i2c.client && mix->i2c.init_client) {
1202                 if (mix->i2c.init_client(&mix->i2c) < 0)
1203                         printk(KERN_ERR "tumbler_init_client error\n");
1204         } else
1205                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1206         if (chip->model == PMAC_TUMBLER) {
1207                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1208                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1209                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1210                 tumbler_set_drc(mix);
1211         } else {
1212                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1213                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1214                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1215                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1216                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1217                 snapper_set_drc(mix);
1218                 snapper_set_capture_source(mix);
1219         }
1220         tumbler_set_master_volume(mix);
1221         if (chip->update_automute)
1222                 chip->update_automute(chip, 0);
1223         if (mix->headphone_irq >= 0) {
1224                 unsigned char val;
1225
1226                 enable_irq(mix->headphone_irq);
1227                 /* activate headphone status interrupts */
1228                 val = do_gpio_read(&mix->hp_detect);
1229                 do_gpio_write(&mix->hp_detect, val | 0x80);
1230         }
1231         if (mix->lineout_irq >= 0)
1232                 enable_irq(mix->lineout_irq);
1233 }
1234 #endif
1235
1236 /* initialize tumbler */
1237 static int __init tumbler_init(struct snd_pmac *chip)
1238 {
1239         int irq;
1240         struct pmac_tumbler *mix = chip->mixer_data;
1241         snd_assert(mix, return -EINVAL);
1242
1243         if (tumbler_find_device("audio-hw-reset",
1244                                 "platform-do-hw-reset",
1245                                 &mix->audio_reset, 0) < 0)
1246                 tumbler_find_device("hw-reset",
1247                                     "platform-do-hw-reset",
1248                                     &mix->audio_reset, 1);
1249         if (tumbler_find_device("amp-mute",
1250                                 "platform-do-amp-mute",
1251                                 &mix->amp_mute, 0) < 0)
1252                 tumbler_find_device("amp-mute",
1253                                     "platform-do-amp-mute",
1254                                     &mix->amp_mute, 1);
1255         if (tumbler_find_device("headphone-mute",
1256                                 "platform-do-headphone-mute",
1257                                 &mix->hp_mute, 0) < 0)
1258                 tumbler_find_device("headphone-mute",
1259                                     "platform-do-headphone-mute",
1260                                     &mix->hp_mute, 1);
1261         if (tumbler_find_device("line-output-mute",
1262                                 "platform-do-lineout-mute",
1263                                 &mix->line_mute, 0) < 0)
1264                 tumbler_find_device("line-output-mute",
1265                                    "platform-do-lineout-mute",
1266                                     &mix->line_mute, 1);
1267         irq = tumbler_find_device("headphone-detect",
1268                                   NULL, &mix->hp_detect, 0);
1269         if (irq <= NO_IRQ)
1270                 irq = tumbler_find_device("headphone-detect",
1271                                           NULL, &mix->hp_detect, 1);
1272         if (irq <= NO_IRQ)
1273                 irq = tumbler_find_device("keywest-gpio15",
1274                                           NULL, &mix->hp_detect, 1);
1275         mix->headphone_irq = irq;
1276         irq = tumbler_find_device("line-output-detect",
1277                                   NULL, &mix->line_detect, 0);
1278         if (irq <= NO_IRQ)
1279                 irq = tumbler_find_device("line-output-detect",
1280                                           NULL, &mix->line_detect, 1);
1281         mix->lineout_irq = irq;
1282
1283         tumbler_reset_audio(chip);
1284
1285         return 0;
1286 }
1287
1288 static void tumbler_cleanup(struct snd_pmac *chip)
1289 {
1290         struct pmac_tumbler *mix = chip->mixer_data;
1291         if (! mix)
1292                 return;
1293
1294         if (mix->headphone_irq >= 0)
1295                 free_irq(mix->headphone_irq, chip);
1296         if (mix->lineout_irq >= 0)
1297                 free_irq(mix->lineout_irq, chip);
1298         tumbler_gpio_free(&mix->audio_reset);
1299         tumbler_gpio_free(&mix->amp_mute);
1300         tumbler_gpio_free(&mix->hp_mute);
1301         tumbler_gpio_free(&mix->hp_detect);
1302         snd_pmac_keywest_cleanup(&mix->i2c);
1303         kfree(mix);
1304         chip->mixer_data = NULL;
1305 }
1306
1307 /* exported */
1308 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1309 {
1310         int i, err;
1311         struct pmac_tumbler *mix;
1312         u32 *paddr;
1313         struct device_node *tas_node, *np;
1314         char *chipname;
1315
1316 #ifdef CONFIG_KMOD
1317         if (current->fs->root)
1318                 request_module("i2c-powermac");
1319 #endif /* CONFIG_KMOD */
1320
1321         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1322         if (! mix)
1323                 return -ENOMEM;
1324         mix->headphone_irq = -1;
1325
1326         chip->mixer_data = mix;
1327         chip->mixer_free = tumbler_cleanup;
1328         mix->anded_reset = 0;
1329         mix->reset_on_sleep = 1;
1330
1331         for (np = chip->node->child; np; np = np->sibling) {
1332                 if (!strcmp(np->name, "sound")) {
1333                         if (get_property(np, "has-anded-reset", NULL))
1334                                 mix->anded_reset = 1;
1335                         if (get_property(np, "layout-id", NULL))
1336                                 mix->reset_on_sleep = 0;
1337                         break;
1338                 }
1339         }
1340         if ((err = tumbler_init(chip)) < 0)
1341                 return err;
1342
1343         /* set up TAS */
1344         tas_node = find_devices("deq");
1345         if (tas_node == NULL)
1346                 tas_node = find_devices("codec");
1347         if (tas_node == NULL)
1348                 return -ENODEV;
1349
1350         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1351         if (paddr == NULL)
1352                 paddr = (u32 *)get_property(tas_node, "reg", NULL);
1353         if (paddr)
1354                 mix->i2c.addr = (*paddr) >> 1;
1355         else
1356                 mix->i2c.addr = TAS_I2C_ADDR;
1357
1358         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1359
1360         if (chip->model == PMAC_TUMBLER) {
1361                 mix->i2c.init_client = tumbler_init_client;
1362                 mix->i2c.name = "TAS3001c";
1363                 chipname = "Tumbler";
1364         } else {
1365                 mix->i2c.init_client = snapper_init_client;
1366                 mix->i2c.name = "TAS3004";
1367                 chipname = "Snapper";
1368         }
1369
1370         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1371                 return err;
1372
1373         /*
1374          * build mixers
1375          */
1376         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1377
1378         if (chip->model == PMAC_TUMBLER) {
1379                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1380                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1381                                 return err;
1382                 }
1383         } else {
1384                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1385                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1386                                 return err;
1387                 }
1388         }
1389         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1390         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1391                 return err;
1392         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1393         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1394                 return err;
1395         if (mix->line_mute.addr != 0) {
1396                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1397                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1398                         return err;
1399         }
1400         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1401         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1402                 return err;
1403
1404         /* set initial DRC range to 60% */
1405         if (chip->model == PMAC_TUMBLER)
1406                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1407         else
1408                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1409         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1410         if (chip->model == PMAC_TUMBLER)
1411                 tumbler_set_drc(mix);
1412         else
1413                 snapper_set_drc(mix);
1414
1415 #ifdef CONFIG_PM
1416         chip->suspend = tumbler_suspend;
1417         chip->resume = tumbler_resume;
1418 #endif
1419
1420         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1421
1422 #ifdef PMAC_SUPPORT_AUTOMUTE
1423         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1424             && (err = snd_pmac_add_automute(chip)) < 0)
1425                 return err;
1426         chip->detect_headphone = tumbler_detect_headphone;
1427         chip->update_automute = tumbler_update_automute;
1428         tumbler_update_automute(chip, 0); /* update the status only */
1429
1430         /* activate headphone status interrupts */
1431         if (mix->headphone_irq >= 0) {
1432                 unsigned char val;
1433                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1434                                        "Sound Headphone Detection", chip)) < 0)
1435                         return 0;
1436                 /* activate headphone status interrupts */
1437                 val = do_gpio_read(&mix->hp_detect);
1438                 do_gpio_write(&mix->hp_detect, val | 0x80);
1439         }
1440         if (mix->lineout_irq >= 0) {
1441                 unsigned char val;
1442                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1443                                        "Sound Lineout Detection", chip)) < 0)
1444                         return 0;
1445                 /* activate headphone status interrupts */
1446                 val = do_gpio_read(&mix->line_detect);
1447                 do_gpio_write(&mix->line_detect, val | 0x80);
1448         }
1449 #endif
1450
1451         return 0;
1452 }