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/i2c-dev.h>
  32 #include <linux/kmod.h>
  33 #include <linux/slab.h>
  34 #include <linux/interrupt.h>
  35 #include <sound/core.h>
  36 #include <asm/io.h>
  37 #include <asm/irq.h>
  38 #include <asm/machdep.h>
  39 #include <asm/pmac_feature.h>
  40 #include "pmac.h"
  41 #include "tumbler_volume.h"
  42
  43 #undef DEBUG
  44
  45 #ifdef DEBUG
  46 #define DBG(fmt...) printk(fmt)
  47 #else
  48 #define DBG(fmt...)
  49 #endif
  50
  51 /* i2c address for tumbler */
  52 #define TAS_I2C_ADDR    0x34
  53
  54 /* registers */
  55 #define TAS_REG_MCS     0x01    /* main control */
  56 #define TAS_REG_DRC     0x02
  57 #define TAS_REG_VOL     0x04
  58 #define TAS_REG_TREBLE  0x05
  59 #define TAS_REG_BASS    0x06
  60 #define TAS_REG_INPUT1  0x07
  61 #define TAS_REG_INPUT2  0x08
  62
  63 /* tas3001c */
  64 #define TAS_REG_PCM     TAS_REG_INPUT1
  65
  66 /* tas3004 */
  67 #define TAS_REG_LMIX    TAS_REG_INPUT1
  68 #define TAS_REG_RMIX    TAS_REG_INPUT2
  69 #define TAS_REG_MCS2    0x43            /* main control 2 */
  70 #define TAS_REG_ACS     0x40            /* analog control */
  71
  72 /* mono volumes for tas3001c/tas3004 */
  73 enum {
  74         VOL_IDX_PCM_MONO, /* tas3001c only */
  75         VOL_IDX_BASS, VOL_IDX_TREBLE,
  76         VOL_IDX_LAST_MONO
  77 };
  78
  79 /* stereo volumes for tas3004 */
  80 enum {
  81         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
  82         VOL_IDX_LAST_MIX
  83 };
  84
  85 struct pmac_gpio {
  86         unsigned int addr;
  87         u8 active_val;
  88         u8 inactive_val;
  89         u8 active_state;
  90 };
  91
  92 struct pmac_tumbler {
  93         struct pmac_keywest i2c;
  94         struct pmac_gpio audio_reset;
  95         struct pmac_gpio amp_mute;
  96         struct pmac_gpio line_mute;
  97         struct pmac_gpio line_detect;
  98         struct pmac_gpio hp_mute;
  99         struct pmac_gpio hp_detect;
 100         int headphone_irq;
 101         int lineout_irq;
 102         unsigned int save_master_vol[2];
 103         unsigned int master_vol[2];
 104         unsigned int save_master_switch[2];
 105         unsigned int master_switch[2];
 106         unsigned int mono_vol[VOL_IDX_LAST_MONO];
 107         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
 108         int drc_range;
 109         int drc_enable;
 110         int capture_source;
 111         int anded_reset;
 112         int auto_mute_notify;
 113         int reset_on_sleep;
 114         u8  acs;
 115 };
 116
 117
 118 /*
 119  */
 120
 121 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
 122 {
 123         while (*regs > 0) {
 124                 int err, count = 10;
 125                 do {
 126                         err = i2c_smbus_write_byte_data(i2c->client,
 127                                                         regs[0], regs[1]);
 128                         if (err >= 0)
 129                                 break;
 130                         DBG("(W) i2c error %d\n", err);
 131                         mdelay(10);
 132                 } while (count--);
 133                 if (err < 0)
 134                         return -ENXIO;
 135                 regs += 2;
 136         }
 137         return 0;
 138 }
 139
 140
 141 static int tumbler_init_client(struct pmac_keywest *i2c)
 142 {
 143         static unsigned int regs[] = {
 144                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
 145                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
 146                 0, /* terminator */
 147         };
 148         DBG("(I) tumbler init client\n");
 149         return send_init_client(i2c, regs);
 150 }
 151
 152 static int snapper_init_client(struct pmac_keywest *i2c)
 153 {
 154         static unsigned int regs[] = {
 155                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
 156                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
 157                 /* normal operation, all-pass mode */
 158                 TAS_REG_MCS2, (1<<1),
 159                 /* normal output, no deemphasis, A input, power-up, line-in */
 160                 TAS_REG_ACS, 0,
 161                 0, /* terminator */
 162         };
 163         DBG("(I) snapper init client\n");
 164         return send_init_client(i2c, regs);
 165 }
 166
 167 /*
 168  * gpio access
 169  */
 170 #define do_gpio_write(gp, val) \
 171         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
 172 #define do_gpio_read(gp) \
 173         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
 174 #define tumbler_gpio_free(gp) /* NOP */
 175
 176 static void write_audio_gpio(struct pmac_gpio *gp, int active)
 177 {
 178         if (! gp->addr)
 179                 return;
 180         active = active ? gp->active_val : gp->inactive_val;
 181         do_gpio_write(gp, active);
 182         DBG("(I) gpio %x write %d\n", gp->addr, active);
 183 }
 184
 185 static int check_audio_gpio(struct pmac_gpio *gp)
 186 {
 187         int ret;
 188
 189         if (! gp->addr)
 190                 return 0;
 191
 192         ret = do_gpio_read(gp);
 193
 194         return (ret & 0xd) == (gp->active_val & 0xd);
 195 }
 196
 197 static int read_audio_gpio(struct pmac_gpio *gp)
 198 {
 199         int ret;
 200         if (! gp->addr)
 201                 return 0;
 202         ret = ((do_gpio_read(gp) & 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_block_data(mix->i2c.client, TAS_REG_VOL,
 243                                        6, 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_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_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_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_block_data(mix->i2c.client, reg, 9, block) < 0) {
 629                 snd_printk("failed to set mono volume %d\n", reg);
 630                 return -EINVAL;
 631         }
 632         return 0;
 633 }
 634
 635 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
 636 {
 637         if (! mix->i2c.client)
 638                 return -ENODEV;
 639         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 640             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 641                 return -EINVAL;
 642         return 0;
 643 }
 644
 645 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
 646                             struct snd_ctl_elem_info *uinfo)
 647 {
 648         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 649         uinfo->count = 2;
 650         uinfo->value.integer.min = 0;
 651         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 652         return 0;
 653 }
 654
 655 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
 656                            struct snd_ctl_elem_value *ucontrol)
 657 {
 658         int idx = (int)kcontrol->private_value;
 659         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 660         struct pmac_tumbler *mix;
 661         if (! (mix = chip->mixer_data))
 662                 return -ENODEV;
 663         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 664         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 665         return 0;
 666 }
 667
 668 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
 669                            struct snd_ctl_elem_value *ucontrol)
 670 {
 671         int idx = (int)kcontrol->private_value;
 672         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 673         struct pmac_tumbler *mix;
 674         int change;
 675
 676         if (! (mix = chip->mixer_data))
 677                 return -ENODEV;
 678         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
 679                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
 680         if (change) {
 681                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
 682                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
 683                 snapper_set_mix_vol(mix, idx);
 684         }
 685         return change;
 686 }
 687
 688
 689 /*
 690  * mute switches. FIXME: Turn that into software mute when both outputs are muted
 691  * to avoid codec reset on ibook M7
 692  */
 693
 694 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
 695
 696 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
 697                                    struct snd_ctl_elem_value *ucontrol)
 698 {
 699         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 700         struct pmac_tumbler *mix;
 701         struct pmac_gpio *gp;
 702         if (! (mix = chip->mixer_data))
 703                 return -ENODEV;
 704         switch(kcontrol->private_value) {
 705         case TUMBLER_MUTE_HP:
 706                 gp = &mix->hp_mute;     break;
 707         case TUMBLER_MUTE_AMP:
 708                 gp = &mix->amp_mute;    break;
 709         case TUMBLER_MUTE_LINE:
 710                 gp = &mix->line_mute;   break;
 711         default:
 712                 gp = NULL;
 713         }
 714         if (gp == NULL)
 715                 return -EINVAL;
 716         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
 717         return 0;
 718 }
 719
 720 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
 721                                    struct snd_ctl_elem_value *ucontrol)
 722 {
 723         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 724         struct pmac_tumbler *mix;
 725         struct pmac_gpio *gp;
 726         int val;
 727 #ifdef PMAC_SUPPORT_AUTOMUTE
 728         if (chip->update_automute && chip->auto_mute)
 729                 return 0; /* don't touch in the auto-mute mode */
 730 #endif
 731         if (! (mix = chip->mixer_data))
 732                 return -ENODEV;
 733         switch(kcontrol->private_value) {
 734         case TUMBLER_MUTE_HP:
 735                 gp = &mix->hp_mute;     break;
 736         case TUMBLER_MUTE_AMP:
 737                 gp = &mix->amp_mute;    break;
 738         case TUMBLER_MUTE_LINE:
 739                 gp = &mix->line_mute;   break;
 740         default:
 741                 gp = NULL;
 742         }
 743         if (gp == NULL)
 744                 return -EINVAL;
 745         val = ! check_audio_gpio(gp);
 746         if (val != ucontrol->value.integer.value[0]) {
 747                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 748                 return 1;
 749         }
 750         return 0;
 751 }
 752
 753 static int snapper_set_capture_source(struct pmac_tumbler *mix)
 754 {
 755         if (! mix->i2c.client)
 756                 return -ENODEV;
 757         if (mix->capture_source)
 758                 mix->acs = mix->acs |= 2;
 759         else
 760                 mix->acs &= ~2;
 761         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
 762 }
 763
 764 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
 765                                        struct snd_ctl_elem_info *uinfo)
 766 {
 767         static char *texts[2] = {
 768                 "Line", "Mic"
 769         };
 770         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 771         uinfo->count = 1;
 772         uinfo->value.enumerated.items = 2;
 773         if (uinfo->value.enumerated.item > 1)
 774                 uinfo->value.enumerated.item = 1;
 775         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 776         return 0;
 777 }
 778
 779 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
 780                                       struct snd_ctl_elem_value *ucontrol)
 781 {
 782         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 783         struct pmac_tumbler *mix = chip->mixer_data;
 784
 785         snd_assert(mix, return -ENODEV);
 786         ucontrol->value.integer.value[0] = mix->capture_source;
 787         return 0;
 788 }
 789
 790 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
 791                                       struct snd_ctl_elem_value *ucontrol)
 792 {
 793         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 794         struct pmac_tumbler *mix = chip->mixer_data;
 795         int change;
 796
 797         snd_assert(mix, return -ENODEV);
 798         change = ucontrol->value.integer.value[0] != mix->capture_source;
 799         if (change) {
 800                 mix->capture_source = !!ucontrol->value.integer.value[0];
 801                 snapper_set_capture_source(mix);
 802         }
 803         return change;
 804 }
 805
 806 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 807         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 808         .name = xname, \
 809         .info = snapper_info_mix, \
 810         .get = snapper_get_mix, \
 811         .put = snapper_put_mix, \
 812         .index = idx,\
 813         .private_value = ofs, \
 814 }
 815
 816
 817 /*
 818  */
 819 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
 820         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 821           .name = "Master Playback Volume",
 822           .info = tumbler_info_master_volume,
 823           .get = tumbler_get_master_volume,
 824           .put = tumbler_put_master_volume
 825         },
 826         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 827           .name = "Master Playback Switch",
 828           .info = snd_pmac_boolean_stereo_info,
 829           .get = tumbler_get_master_switch,
 830           .put = tumbler_put_master_switch
 831         },
 832         DEFINE_MONO("Tone Control - Bass", bass),
 833         DEFINE_MONO("Tone Control - Treble", treble),
 834         DEFINE_MONO("PCM Playback Volume", pcm),
 835         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 836           .name = "DRC Range",
 837           .info = tumbler_info_drc_value,
 838           .get = tumbler_get_drc_value,
 839           .put = tumbler_put_drc_value
 840         },
 841 };
 842
 843 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
 844         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 845           .name = "Master Playback Volume",
 846           .info = tumbler_info_master_volume,
 847           .get = tumbler_get_master_volume,
 848           .put = tumbler_put_master_volume
 849         },
 850         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 851           .name = "Master Playback Switch",
 852           .info = snd_pmac_boolean_stereo_info,
 853           .get = tumbler_get_master_switch,
 854           .put = tumbler_put_master_switch
 855         },
 856         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 857         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
 858         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 859         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 860         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 861         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 862           .name = "DRC Range",
 863           .info = tumbler_info_drc_value,
 864           .get = tumbler_get_drc_value,
 865           .put = tumbler_put_drc_value
 866         },
 867         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 868           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 869           .info = snapper_info_capture_source,
 870           .get = snapper_get_capture_source,
 871           .put = snapper_put_capture_source
 872         },
 873 };
 874
 875 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
 876         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 877         .name = "Headphone Playback Switch",
 878         .info = snd_pmac_boolean_mono_info,
 879         .get = tumbler_get_mute_switch,
 880         .put = tumbler_put_mute_switch,
 881         .private_value = TUMBLER_MUTE_HP,
 882 };
 883 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
 884         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 885         .name = "PC Speaker Playback Switch",
 886         .info = snd_pmac_boolean_mono_info,
 887         .get = tumbler_get_mute_switch,
 888         .put = tumbler_put_mute_switch,
 889         .private_value = TUMBLER_MUTE_AMP,
 890 };
 891 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
 892         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 893         .name = "Line Out Playback Switch",
 894         .info = snd_pmac_boolean_mono_info,
 895         .get = tumbler_get_mute_switch,
 896         .put = tumbler_put_mute_switch,
 897         .private_value = TUMBLER_MUTE_LINE,
 898 };
 899 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
 900         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 901         .name = "DRC Switch",
 902         .info = snd_pmac_boolean_mono_info,
 903         .get = tumbler_get_drc_switch,
 904         .put = tumbler_put_drc_switch
 905 };
 906
 907
 908 #ifdef PMAC_SUPPORT_AUTOMUTE
 909 /*
 910  * auto-mute stuffs
 911  */
 912 static int tumbler_detect_headphone(struct snd_pmac *chip)
 913 {
 914         struct pmac_tumbler *mix = chip->mixer_data;
 915         int detect = 0;
 916
 917         if (mix->hp_detect.addr)
 918                 detect |= read_audio_gpio(&mix->hp_detect);
 919         return detect;
 920 }
 921
 922 static int tumbler_detect_lineout(struct snd_pmac *chip)
 923 {
 924         struct pmac_tumbler *mix = chip->mixer_data;
 925         int detect = 0;
 926
 927         if (mix->line_detect.addr)
 928                 detect |= read_audio_gpio(&mix->line_detect);
 929         return detect;
 930 }
 931
 932 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
 933                        struct snd_kcontrol *sw)
 934 {
 935         if (check_audio_gpio(gp) != val) {
 936                 write_audio_gpio(gp, val);
 937                 if (do_notify)
 938                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 939                                        &sw->id);
 940         }
 941 }
 942
 943 static struct work_struct device_change;
 944
 945 static void device_change_handler(void *self)
 946 {
 947         struct snd_pmac *chip = self;
 948         struct pmac_tumbler *mix;
 949         int headphone, lineout;
 950
 951         if (!chip)
 952                 return;
 953
 954         mix = chip->mixer_data;
 955         snd_assert(mix, return);
 956
 957         headphone = tumbler_detect_headphone(chip);
 958         lineout = tumbler_detect_lineout(chip);
 959
 960         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
 961
 962         if (headphone || lineout) {
 963                 /* unmute headphone/lineout & mute speaker */
 964                 if (headphone)
 965                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
 966                                    chip->master_sw_ctl);
 967                 if (lineout && mix->line_mute.addr != 0)
 968                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
 969                                    chip->lineout_sw_ctl);
 970                 if (mix->anded_reset)
 971                         msleep(10);
 972                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
 973                            chip->speaker_sw_ctl);
 974         } else {
 975                 /* unmute speaker, mute others */
 976                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
 977                            chip->speaker_sw_ctl);
 978                 if (mix->anded_reset)
 979                         msleep(10);
 980                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
 981                            chip->master_sw_ctl);
 982                 if (mix->line_mute.addr != 0)
 983                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
 984                                    chip->lineout_sw_ctl);
 985         }
 986         if (mix->auto_mute_notify)
 987                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 988                                        &chip->hp_detect_ctl->id);
 989
 990 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
 991         mix->drc_enable = ! (headphone || lineout);
 992         if (mix->auto_mute_notify)
 993                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 994                                &chip->drc_sw_ctl->id);
 995         if (chip->model == PMAC_TUMBLER)
 996                 tumbler_set_drc(mix);
 997         else
 998                 snapper_set_drc(mix);
 999 #endif
1000
1001         /* reset the master volume so the correct amplification is applied */
1002         tumbler_set_master_volume(mix);
1003 }
1004
1005 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1006 {
1007         if (chip->auto_mute) {
1008                 struct pmac_tumbler *mix;
1009                 mix = chip->mixer_data;
1010                 snd_assert(mix, return);
1011                 mix->auto_mute_notify = do_notify;
1012                 schedule_work(&device_change);
1013         }
1014 }
1015 #endif /* PMAC_SUPPORT_AUTOMUTE */
1016
1017
1018 /* interrupt - headphone plug changed */
1019 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
1020 {
1021         struct snd_pmac *chip = devid;
1022         if (chip->update_automute && chip->initialized) {
1023                 chip->update_automute(chip, 1);
1024                 return IRQ_HANDLED;
1025         }
1026         return IRQ_NONE;
1027 }
1028
1029 /* look for audio-gpio device */
1030 static struct device_node *find_audio_device(const char *name)
1031 {
1032         struct device_node *np;
1033
1034         if (! (np = find_devices("gpio")))
1035                 return NULL;
1036
1037         for (np = np->child; np; np = np->sibling) {
1038                 char *property = get_property(np, "audio-gpio", NULL);
1039                 if (property && strcmp(property, name) == 0)
1040                         return np;
1041         }
1042         return NULL;
1043 }
1044
1045 /* look for audio-gpio device */
1046 static struct device_node *find_compatible_audio_device(const char *name)
1047 {
1048         struct device_node *np;
1049
1050         if (! (np = find_devices("gpio")))
1051                 return NULL;
1052
1053         for (np = np->child; np; np = np->sibling) {
1054                 if (device_is_compatible(np, name))
1055                         return np;
1056         }
1057         return NULL;
1058 }
1059
1060 /* find an audio device and get its address */
1061 static long tumbler_find_device(const char *device, const char *platform,
1062                                 struct pmac_gpio *gp, int is_compatible)
1063 {
1064         struct device_node *node;
1065         u32 *base, addr;
1066
1067         if (is_compatible)
1068                 node = find_compatible_audio_device(device);
1069         else
1070                 node = find_audio_device(device);
1071         if (! node) {
1072                 DBG("(W) cannot find audio device %s !\n", device);
1073                 snd_printdd("cannot find device %s\n", device);
1074                 return -ENODEV;
1075         }
1076
1077         base = (u32 *)get_property(node, "AAPL,address", NULL);
1078         if (! base) {
1079                 base = (u32 *)get_property(node, "reg", NULL);
1080                 if (!base) {
1081                         DBG("(E) cannot find address for device %s !\n", device);
1082                         snd_printd("cannot find address for device %s\n", device);
1083                         return -ENODEV;
1084                 }
1085                 addr = *base;
1086                 if (addr < 0x50)
1087                         addr += 0x50;
1088         } else
1089                 addr = *base;
1090
1091         gp->addr = addr & 0x0000ffff;
1092         /* Try to find the active state, default to 0 ! */
1093         base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
1094         if (base) {
1095                 gp->active_state = *base;
1096                 gp->active_val = (*base) ? 0x5 : 0x4;
1097                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1098         } else {
1099                 u32 *prop = NULL;
1100                 gp->active_state = 0;
1101                 gp->active_val = 0x4;
1102                 gp->inactive_val = 0x5;
1103                 /* Here are some crude hacks to extract the GPIO polarity and
1104                  * open collector informations out of the do-platform script
1105                  * as we don't yet have an interpreter for these things
1106                  */
1107                 if (platform)
1108                         prop = (u32 *)get_property(node, platform, NULL);
1109                 if (prop) {
1110                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1111                                 gp->active_val = 0xd;
1112                                 gp->inactive_val = 0xc;
1113                         }
1114                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1115                                 gp->active_val = 0x5;
1116                                 gp->inactive_val = 0x4;
1117                         }
1118                 }
1119         }
1120
1121         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1122             device, gp->addr, gp->active_state);
1123
1124         return (node->n_intrs > 0) ? node->intrs[0].line : 0;
1125 }
1126
1127 /* reset audio */
1128 static void tumbler_reset_audio(struct snd_pmac *chip)
1129 {
1130         struct pmac_tumbler *mix = chip->mixer_data;
1131
1132         if (mix->anded_reset) {
1133                 DBG("(I) codec anded reset !\n");
1134                 write_audio_gpio(&mix->hp_mute, 0);
1135                 write_audio_gpio(&mix->amp_mute, 0);
1136                 msleep(200);
1137                 write_audio_gpio(&mix->hp_mute, 1);
1138                 write_audio_gpio(&mix->amp_mute, 1);
1139                 msleep(100);
1140                 write_audio_gpio(&mix->hp_mute, 0);
1141                 write_audio_gpio(&mix->amp_mute, 0);
1142                 msleep(100);
1143         } else {
1144                 DBG("(I) codec normal reset !\n");
1145
1146                 write_audio_gpio(&mix->audio_reset, 0);
1147                 msleep(200);
1148                 write_audio_gpio(&mix->audio_reset, 1);
1149                 msleep(100);
1150                 write_audio_gpio(&mix->audio_reset, 0);
1151                 msleep(100);
1152         }
1153 }
1154
1155 #ifdef CONFIG_PM
1156 /* suspend mixer */
1157 static void tumbler_suspend(struct snd_pmac *chip)
1158 {
1159         struct pmac_tumbler *mix = chip->mixer_data;
1160
1161         if (mix->headphone_irq >= 0)
1162                 disable_irq(mix->headphone_irq);
1163         if (mix->lineout_irq >= 0)
1164                 disable_irq(mix->lineout_irq);
1165         mix->save_master_switch[0] = mix->master_switch[0];
1166         mix->save_master_switch[1] = mix->master_switch[1];
1167         mix->save_master_vol[0] = mix->master_vol[0];
1168         mix->save_master_vol[1] = mix->master_vol[1];
1169         mix->master_switch[0] = mix->master_switch[1] = 0;
1170         tumbler_set_master_volume(mix);
1171         if (!mix->anded_reset) {
1172                 write_audio_gpio(&mix->amp_mute, 1);
1173                 write_audio_gpio(&mix->hp_mute, 1);
1174         }
1175         if (chip->model == PMAC_SNAPPER) {
1176                 mix->acs |= 1;
1177                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1178         }
1179         if (mix->anded_reset) {
1180                 write_audio_gpio(&mix->amp_mute, 1);
1181                 write_audio_gpio(&mix->hp_mute, 1);
1182         } else
1183                 write_audio_gpio(&mix->audio_reset, 1);
1184 }
1185
1186 /* resume mixer */
1187 static void tumbler_resume(struct snd_pmac *chip)
1188 {
1189         struct pmac_tumbler *mix = chip->mixer_data;
1190
1191         snd_assert(mix, return);
1192
1193         mix->acs &= ~1;
1194         mix->master_switch[0] = mix->save_master_switch[0];
1195         mix->master_switch[1] = mix->save_master_switch[1];
1196         mix->master_vol[0] = mix->save_master_vol[0];
1197         mix->master_vol[1] = mix->save_master_vol[1];
1198         tumbler_reset_audio(chip);
1199         if (mix->i2c.client && mix->i2c.init_client) {
1200                 if (mix->i2c.init_client(&mix->i2c) < 0)
1201                         printk(KERN_ERR "tumbler_init_client error\n");
1202         } else
1203                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1204         if (chip->model == PMAC_TUMBLER) {
1205                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1206                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1207                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1208                 tumbler_set_drc(mix);
1209         } else {
1210                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1211                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1212                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1213                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1214                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1215                 snapper_set_drc(mix);
1216                 snapper_set_capture_source(mix);
1217         }
1218         tumbler_set_master_volume(mix);
1219         if (chip->update_automute)
1220                 chip->update_automute(chip, 0);
1221         if (mix->headphone_irq >= 0) {
1222                 unsigned char val;
1223
1224                 enable_irq(mix->headphone_irq);
1225                 /* activate headphone status interrupts */
1226                 val = do_gpio_read(&mix->hp_detect);
1227                 do_gpio_write(&mix->hp_detect, val | 0x80);
1228         }
1229         if (mix->lineout_irq >= 0)
1230                 enable_irq(mix->lineout_irq);
1231 }
1232 #endif
1233
1234 /* initialize tumbler */
1235 static int __init tumbler_init(struct snd_pmac *chip)
1236 {
1237         int irq;
1238         struct pmac_tumbler *mix = chip->mixer_data;
1239         snd_assert(mix, return -EINVAL);
1240
1241         if (tumbler_find_device("audio-hw-reset",
1242                                 "platform-do-hw-reset",
1243                                 &mix->audio_reset, 0) < 0)
1244                 tumbler_find_device("hw-reset",
1245                                     "platform-do-hw-reset",
1246                                     &mix->audio_reset, 1);
1247         if (tumbler_find_device("amp-mute",
1248                                 "platform-do-amp-mute",
1249                                 &mix->amp_mute, 0) < 0)
1250                 tumbler_find_device("amp-mute",
1251                                     "platform-do-amp-mute",
1252                                     &mix->amp_mute, 1);
1253         if (tumbler_find_device("headphone-mute",
1254                                 "platform-do-headphone-mute",
1255                                 &mix->hp_mute, 0) < 0)
1256                 tumbler_find_device("headphone-mute",
1257                                     "platform-do-headphone-mute",
1258                                     &mix->hp_mute, 1);
1259         if (tumbler_find_device("line-output-mute",
1260                                 "platform-do-lineout-mute",
1261                                 &mix->line_mute, 0) < 0)
1262                 tumbler_find_device("line-output-mute",
1263                                    "platform-do-lineout-mute",
1264                                     &mix->line_mute, 1);
1265         irq = tumbler_find_device("headphone-detect",
1266                                   NULL, &mix->hp_detect, 0);
1267         if (irq < 0)
1268                 irq = tumbler_find_device("headphone-detect",
1269                                           NULL, &mix->hp_detect, 1);
1270         if (irq < 0)
1271                 irq = tumbler_find_device("keywest-gpio15",
1272                                           NULL, &mix->hp_detect, 1);
1273         mix->headphone_irq = irq;
1274         irq = tumbler_find_device("line-output-detect",
1275                                   NULL, &mix->line_detect, 0);
1276         if (irq < 0)
1277                 irq = tumbler_find_device("line-output-detect",
1278                                           NULL, &mix->line_detect, 1);
1279         mix->lineout_irq = irq;
1280
1281         tumbler_reset_audio(chip);
1282
1283         return 0;
1284 }
1285
1286 static void tumbler_cleanup(struct snd_pmac *chip)
1287 {
1288         struct pmac_tumbler *mix = chip->mixer_data;
1289         if (! mix)
1290                 return;
1291
1292         if (mix->headphone_irq >= 0)
1293                 free_irq(mix->headphone_irq, chip);
1294         if (mix->lineout_irq >= 0)
1295                 free_irq(mix->lineout_irq, chip);
1296         tumbler_gpio_free(&mix->audio_reset);
1297         tumbler_gpio_free(&mix->amp_mute);
1298         tumbler_gpio_free(&mix->hp_mute);
1299         tumbler_gpio_free(&mix->hp_detect);
1300         snd_pmac_keywest_cleanup(&mix->i2c);
1301         kfree(mix);
1302         chip->mixer_data = NULL;
1303 }
1304
1305 /* exported */
1306 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1307 {
1308         int i, err;
1309         struct pmac_tumbler *mix;
1310         u32 *paddr;
1311         struct device_node *tas_node, *np;
1312         char *chipname;
1313
1314 #ifdef CONFIG_KMOD
1315         if (current->fs->root)
1316                 request_module("i2c-keywest");
1317 #endif /* CONFIG_KMOD */
1318
1319         mix = kmalloc(sizeof(*mix), GFP_KERNEL);
1320         if (! mix)
1321                 return -ENOMEM;
1322         memset(mix, 0, sizeof(*mix));
1323         mix->headphone_irq = -1;
1324
1325         chip->mixer_data = mix;
1326         chip->mixer_free = tumbler_cleanup;
1327         mix->anded_reset = 0;
1328         mix->reset_on_sleep = 1;
1329
1330         for (np = chip->node->child; np; np = np->sibling) {
1331                 if (!strcmp(np->name, "sound")) {
1332                         if (get_property(np, "has-anded-reset", NULL))
1333                                 mix->anded_reset = 1;
1334                         if (get_property(np, "layout-id", NULL))
1335                                 mix->reset_on_sleep = 0;
1336                         break;
1337                 }
1338         }
1339         if ((err = tumbler_init(chip)) < 0)
1340                 return err;
1341
1342         /* set up TAS */
1343         tas_node = find_devices("deq");
1344         if (tas_node == NULL)
1345                 tas_node = find_devices("codec");
1346         if (tas_node == NULL)
1347                 return -ENODEV;
1348
1349         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1350         if (paddr == NULL)
1351                 paddr = (u32 *)get_property(tas_node, "reg", NULL);
1352         if (paddr)
1353                 mix->i2c.addr = (*paddr) >> 1;
1354         else
1355                 mix->i2c.addr = TAS_I2C_ADDR;
1356
1357         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1358
1359         if (chip->model == PMAC_TUMBLER) {
1360                 mix->i2c.init_client = tumbler_init_client;
1361                 mix->i2c.name = "TAS3001c";
1362                 chipname = "Tumbler";
1363         } else {
1364                 mix->i2c.init_client = snapper_init_client;
1365                 mix->i2c.name = "TAS3004";
1366                 chipname = "Snapper";
1367         }
1368
1369         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1370                 return err;
1371
1372         /*
1373          * build mixers
1374          */
1375         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1376
1377         if (chip->model == PMAC_TUMBLER) {
1378                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1379                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1380                                 return err;
1381                 }
1382         } else {
1383                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1384                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1385                                 return err;
1386                 }
1387         }
1388         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1389         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1390                 return err;
1391         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1392         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1393                 return err;
1394         if (mix->line_mute.addr != 0) {
1395                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1396                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1397                         return err;
1398         }
1399         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1400         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1401                 return err;
1402
1403         /* set initial DRC range to 60% */
1404         if (chip->model == PMAC_TUMBLER)
1405                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1406         else
1407                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1408         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1409         if (chip->model == PMAC_TUMBLER)
1410                 tumbler_set_drc(mix);
1411         else
1412                 snapper_set_drc(mix);
1413
1414 #ifdef CONFIG_PM
1415         chip->suspend = tumbler_suspend;
1416         chip->resume = tumbler_resume;
1417 #endif
1418
1419         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1420
1421 #ifdef PMAC_SUPPORT_AUTOMUTE
1422         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1423             && (err = snd_pmac_add_automute(chip)) < 0)
1424                 return err;
1425         chip->detect_headphone = tumbler_detect_headphone;
1426         chip->update_automute = tumbler_update_automute;
1427         tumbler_update_automute(chip, 0); /* update the status only */
1428
1429         /* activate headphone status interrupts */
1430         if (mix->headphone_irq >= 0) {
1431                 unsigned char val;
1432                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1433                                        "Sound Headphone Detection", chip)) < 0)
1434                         return 0;
1435                 /* activate headphone status interrupts */
1436                 val = do_gpio_read(&mix->hp_detect);
1437                 do_gpio_write(&mix->hp_detect, val | 0x80);
1438         }
1439         if (mix->lineout_irq >= 0) {
1440                 unsigned char val;
1441                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1442                                        "Sound Lineout Detection", chip)) < 0)
1443                         return 0;
1444                 /* activate headphone status interrupts */
1445                 val = do_gpio_read(&mix->line_detect);
1446                 do_gpio_write(&mix->line_detect, val | 0x80);
1447         }
1448 #endif
1449
1450         return 0;
1451 }