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   1 /*
   2  * PMac Tumbler/Snapper lowlevel functions
   3  *
   4  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  *   Rene Rebe <rene.rebe@gmx.net>:
  21  *     * update from shadow registers on wakeup and headphone plug
  22  *     * automatically toggle DRC on headphone plug
  23  *
  24  */
  25
  26
  27 #include <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 typedef struct pmac_gpio {
  86         unsigned int addr;
  87         u8 active_val;
  88         u8 inactive_val;
  89         u8 active_state;
  90 } pmac_gpio_t;
  91
  92 typedef struct pmac_tumbler_t {
  93         pmac_keywest_t i2c;
  94         pmac_gpio_t audio_reset;
  95         pmac_gpio_t amp_mute;
  96         pmac_gpio_t line_mute;
  97         pmac_gpio_t line_detect;
  98         pmac_gpio_t hp_mute;
  99         pmac_gpio_t 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 } pmac_tumbler_t;
 116
 117
 118 /*
 119  */
 120
 121 static int send_init_client(pmac_keywest_t *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(pmac_keywest_t *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(pmac_keywest_t *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(pmac_gpio_t *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(pmac_gpio_t *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(pmac_gpio_t *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(pmac_tumbler_t *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(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 253 {
 254         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 255         uinfo->count = 2;
 256         uinfo->value.integer.min = 0;
 257         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
 258         return 0;
 259 }
 260
 261 static int tumbler_get_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 262 {
 263         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 264         pmac_tumbler_t *mix = chip->mixer_data;
 265         snd_assert(mix, return -ENODEV);
 266         ucontrol->value.integer.value[0] = mix->master_vol[0];
 267         ucontrol->value.integer.value[1] = mix->master_vol[1];
 268         return 0;
 269 }
 270
 271 static int tumbler_put_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 272 {
 273         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 274         pmac_tumbler_t *mix = chip->mixer_data;
 275         int change;
 276
 277         snd_assert(mix, return -ENODEV);
 278         change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
 279                 mix->master_vol[1] != ucontrol->value.integer.value[1];
 280         if (change) {
 281                 mix->master_vol[0] = ucontrol->value.integer.value[0];
 282                 mix->master_vol[1] = ucontrol->value.integer.value[1];
 283                 tumbler_set_master_volume(mix);
 284         }
 285         return change;
 286 }
 287
 288 /* output switch */
 289 static int tumbler_get_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 290 {
 291         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 292         pmac_tumbler_t *mix = chip->mixer_data;
 293         snd_assert(mix, return -ENODEV);
 294         ucontrol->value.integer.value[0] = mix->master_switch[0];
 295         ucontrol->value.integer.value[1] = mix->master_switch[1];
 296         return 0;
 297 }
 298
 299 static int tumbler_put_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 300 {
 301         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 302         pmac_tumbler_t *mix = chip->mixer_data;
 303         int change;
 304
 305         snd_assert(mix, return -ENODEV);
 306         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
 307                 mix->master_switch[1] != ucontrol->value.integer.value[1];
 308         if (change) {
 309                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
 310                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
 311                 tumbler_set_master_volume(mix);
 312         }
 313         return change;
 314 }
 315
 316
 317 /*
 318  * TAS3001c dynamic range compression
 319  */
 320
 321 #define TAS3001_DRC_MAX         0x5f
 322
 323 static int tumbler_set_drc(pmac_tumbler_t *mix)
 324 {
 325         unsigned char val[2];
 326
 327         if (! mix->i2c.client)
 328                 return -ENODEV;
 329
 330         if (mix->drc_enable) {
 331                 val[0] = 0xc1; /* enable, 3:1 compression */
 332                 if (mix->drc_range > TAS3001_DRC_MAX)
 333                         val[1] = 0xf0;
 334                 else if (mix->drc_range < 0)
 335                         val[1] = 0x91;
 336                 else
 337                         val[1] = mix->drc_range + 0x91;
 338         } else {
 339                 val[0] = 0;
 340                 val[1] = 0;
 341         }
 342
 343         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
 344                                        2, val) < 0) {
 345                 snd_printk("failed to set DRC\n");
 346                 return -EINVAL;
 347         }
 348         return 0;
 349 }
 350
 351 /*
 352  * TAS3004
 353  */
 354
 355 #define TAS3004_DRC_MAX         0xef
 356
 357 static int snapper_set_drc(pmac_tumbler_t *mix)
 358 {
 359         unsigned char val[6];
 360
 361         if (! mix->i2c.client)
 362                 return -ENODEV;
 363
 364         if (mix->drc_enable)
 365                 val[0] = 0x50; /* 3:1 above threshold */
 366         else
 367                 val[0] = 0x51; /* disabled */
 368         val[1] = 0x02; /* 1:1 below threshold */
 369         if (mix->drc_range > 0xef)
 370                 val[2] = 0xef;
 371         else if (mix->drc_range < 0)
 372                 val[2] = 0x00;
 373         else
 374                 val[2] = mix->drc_range;
 375         val[3] = 0xb0;
 376         val[4] = 0x60;
 377         val[5] = 0xa0;
 378
 379         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
 380                                        6, val) < 0) {
 381                 snd_printk("failed to set DRC\n");
 382                 return -EINVAL;
 383         }
 384         return 0;
 385 }
 386
 387 static int tumbler_info_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 388 {
 389         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 390         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 391         uinfo->count = 1;
 392         uinfo->value.integer.min = 0;
 393         uinfo->value.integer.max =
 394                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
 395         return 0;
 396 }
 397
 398 static int tumbler_get_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 399 {
 400         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 401         pmac_tumbler_t *mix;
 402         if (! (mix = chip->mixer_data))
 403                 return -ENODEV;
 404         ucontrol->value.integer.value[0] = mix->drc_range;
 405         return 0;
 406 }
 407
 408 static int tumbler_put_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 409 {
 410         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 411         pmac_tumbler_t *mix;
 412         int change;
 413
 414         if (! (mix = chip->mixer_data))
 415                 return -ENODEV;
 416         change = mix->drc_range != ucontrol->value.integer.value[0];
 417         if (change) {
 418                 mix->drc_range = ucontrol->value.integer.value[0];
 419                 if (chip->model == PMAC_TUMBLER)
 420                         tumbler_set_drc(mix);
 421                 else
 422                         snapper_set_drc(mix);
 423         }
 424         return change;
 425 }
 426
 427 static int tumbler_get_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 428 {
 429         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 430         pmac_tumbler_t *mix;
 431         if (! (mix = chip->mixer_data))
 432                 return -ENODEV;
 433         ucontrol->value.integer.value[0] = mix->drc_enable;
 434         return 0;
 435 }
 436
 437 static int tumbler_put_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 438 {
 439         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 440         pmac_tumbler_t *mix;
 441         int change;
 442
 443         if (! (mix = chip->mixer_data))
 444                 return -ENODEV;
 445         change = mix->drc_enable != ucontrol->value.integer.value[0];
 446         if (change) {
 447                 mix->drc_enable = !!ucontrol->value.integer.value[0];
 448                 if (chip->model == PMAC_TUMBLER)
 449                         tumbler_set_drc(mix);
 450                 else
 451                         snapper_set_drc(mix);
 452         }
 453         return change;
 454 }
 455
 456
 457 /*
 458  * mono volumes
 459  */
 460
 461 struct tumbler_mono_vol {
 462         int index;
 463         int reg;
 464         int bytes;
 465         unsigned int max;
 466         unsigned int *table;
 467 };
 468
 469 static int tumbler_set_mono_volume(pmac_tumbler_t *mix, struct tumbler_mono_vol *info)
 470 {
 471         unsigned char block[4];
 472         unsigned int vol;
 473         int i;
 474
 475         if (! mix->i2c.client)
 476                 return -ENODEV;
 477
 478         vol = mix->mono_vol[info->index];
 479         if (vol >= info->max)
 480                 vol = info->max - 1;
 481         vol = info->table[vol];
 482         for (i = 0; i < info->bytes; i++)
 483                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
 484         if (i2c_smbus_write_block_data(mix->i2c.client, info->reg,
 485                                        info->bytes, block) < 0) {
 486                 snd_printk("failed to set mono volume %d\n", info->index);
 487                 return -EINVAL;
 488         }
 489         return 0;
 490 }
 491
 492 static int tumbler_info_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 493 {
 494         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 495
 496         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 497         uinfo->count = 1;
 498         uinfo->value.integer.min = 0;
 499         uinfo->value.integer.max = info->max - 1;
 500         return 0;
 501 }
 502
 503 static int tumbler_get_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 504 {
 505         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 506         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 507         pmac_tumbler_t *mix;
 508         if (! (mix = chip->mixer_data))
 509                 return -ENODEV;
 510         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
 511         return 0;
 512 }
 513
 514 static int tumbler_put_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 515 {
 516         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 517         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 518         pmac_tumbler_t *mix;
 519         int change;
 520
 521         if (! (mix = chip->mixer_data))
 522                 return -ENODEV;
 523         change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
 524         if (change) {
 525                 mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
 526                 tumbler_set_mono_volume(mix, info);
 527         }
 528         return change;
 529 }
 530
 531 /* TAS3001c mono volumes */
 532 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
 533         .index = VOL_IDX_PCM_MONO,
 534         .reg = TAS_REG_PCM,
 535         .bytes = 3,
 536         .max = ARRAY_SIZE(mixer_volume_table),
 537         .table = mixer_volume_table,
 538 };
 539
 540 static struct tumbler_mono_vol tumbler_bass_vol_info = {
 541         .index = VOL_IDX_BASS,
 542         .reg = TAS_REG_BASS,
 543         .bytes = 1,
 544         .max = ARRAY_SIZE(bass_volume_table),
 545         .table = bass_volume_table,
 546 };
 547
 548 static struct tumbler_mono_vol tumbler_treble_vol_info = {
 549         .index = VOL_IDX_TREBLE,
 550         .reg = TAS_REG_TREBLE,
 551         .bytes = 1,
 552         .max = ARRAY_SIZE(treble_volume_table),
 553         .table = treble_volume_table,
 554 };
 555
 556 /* TAS3004 mono volumes */
 557 static struct tumbler_mono_vol snapper_bass_vol_info = {
 558         .index = VOL_IDX_BASS,
 559         .reg = TAS_REG_BASS,
 560         .bytes = 1,
 561         .max = ARRAY_SIZE(snapper_bass_volume_table),
 562         .table = snapper_bass_volume_table,
 563 };
 564
 565 static struct tumbler_mono_vol snapper_treble_vol_info = {
 566         .index = VOL_IDX_TREBLE,
 567         .reg = TAS_REG_TREBLE,
 568         .bytes = 1,
 569         .max = ARRAY_SIZE(snapper_treble_volume_table),
 570         .table = snapper_treble_volume_table,
 571 };
 572
 573
 574 #define DEFINE_MONO(xname,type) { \
 575         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 576         .name = xname, \
 577         .info = tumbler_info_mono, \
 578         .get = tumbler_get_mono, \
 579         .put = tumbler_put_mono, \
 580         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
 581 }
 582
 583 #define DEFINE_SNAPPER_MONO(xname,type) { \
 584         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 585         .name = xname, \
 586         .info = tumbler_info_mono, \
 587         .get = tumbler_get_mono, \
 588         .put = tumbler_put_mono, \
 589         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
 590 }
 591
 592
 593 /*
 594  * snapper mixer volumes
 595  */
 596
 597 static int snapper_set_mix_vol1(pmac_tumbler_t *mix, int idx, int ch, int reg)
 598 {
 599         int i, j, vol;
 600         unsigned char block[9];
 601
 602         vol = mix->mix_vol[idx][ch];
 603         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
 604                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
 605                 mix->mix_vol[idx][ch] = vol;
 606         }
 607
 608         for (i = 0; i < 3; i++) {
 609                 vol = mix->mix_vol[i][ch];
 610                 vol = mixer_volume_table[vol];
 611                 for (j = 0; j < 3; j++)
 612                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
 613         }
 614         if (i2c_smbus_write_block_data(mix->i2c.client, reg, 9, block) < 0) {
 615                 snd_printk("failed to set mono volume %d\n", reg);
 616                 return -EINVAL;
 617         }
 618         return 0;
 619 }
 620
 621 static int snapper_set_mix_vol(pmac_tumbler_t *mix, int idx)
 622 {
 623         if (! mix->i2c.client)
 624                 return -ENODEV;
 625         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 626             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 627                 return -EINVAL;
 628         return 0;
 629 }
 630
 631 static int snapper_info_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 632 {
 633         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 634         uinfo->count = 2;
 635         uinfo->value.integer.min = 0;
 636         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 637         return 0;
 638 }
 639
 640 static int snapper_get_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 641 {
 642         int idx = (int)kcontrol->private_value;
 643         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 644         pmac_tumbler_t *mix;
 645         if (! (mix = chip->mixer_data))
 646                 return -ENODEV;
 647         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 648         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 649         return 0;
 650 }
 651
 652 static int snapper_put_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 653 {
 654         int idx = (int)kcontrol->private_value;
 655         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 656         pmac_tumbler_t *mix;
 657         int change;
 658
 659         if (! (mix = chip->mixer_data))
 660                 return -ENODEV;
 661         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
 662                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
 663         if (change) {
 664                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
 665                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
 666                 snapper_set_mix_vol(mix, idx);
 667         }
 668         return change;
 669 }
 670
 671
 672 /*
 673  * mute switches. FIXME: Turn that into software mute when both outputs are muted
 674  * to avoid codec reset on ibook M7
 675  */
 676
 677 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
 678
 679 static int tumbler_get_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 680 {
 681         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 682         pmac_tumbler_t *mix;
 683         pmac_gpio_t *gp;
 684         if (! (mix = chip->mixer_data))
 685                 return -ENODEV;
 686         switch(kcontrol->private_value) {
 687         case TUMBLER_MUTE_HP:
 688                 gp = &mix->hp_mute;     break;
 689         case TUMBLER_MUTE_AMP:
 690                 gp = &mix->amp_mute;    break;
 691         case TUMBLER_MUTE_LINE:
 692                 gp = &mix->line_mute;   break;
 693         default:
 694                 gp = NULL;
 695         }
 696         if (gp == NULL)
 697                 return -EINVAL;
 698         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
 699         return 0;
 700 }
 701
 702 static int tumbler_put_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 703 {
 704         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 705         pmac_tumbler_t *mix;
 706         pmac_gpio_t *gp;
 707         int val;
 708 #ifdef PMAC_SUPPORT_AUTOMUTE
 709         if (chip->update_automute && chip->auto_mute)
 710                 return 0; /* don't touch in the auto-mute mode */
 711 #endif
 712         if (! (mix = chip->mixer_data))
 713                 return -ENODEV;
 714         switch(kcontrol->private_value) {
 715         case TUMBLER_MUTE_HP:
 716                 gp = &mix->hp_mute;     break;
 717         case TUMBLER_MUTE_AMP:
 718                 gp = &mix->amp_mute;    break;
 719         case TUMBLER_MUTE_LINE:
 720                 gp = &mix->line_mute;   break;
 721         default:
 722                 gp = NULL;
 723         }
 724         if (gp == NULL)
 725                 return -EINVAL;
 726         val = ! check_audio_gpio(gp);
 727         if (val != ucontrol->value.integer.value[0]) {
 728                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 729                 return 1;
 730         }
 731         return 0;
 732 }
 733
 734 static int snapper_set_capture_source(pmac_tumbler_t *mix)
 735 {
 736         if (! mix->i2c.client)
 737                 return -ENODEV;
 738         if (mix->capture_source)
 739                 mix->acs = mix->acs |= 2;
 740         else
 741                 mix->acs &= ~2;
 742         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
 743 }
 744
 745 static int snapper_info_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 746 {
 747         static char *texts[2] = {
 748                 "Line", "Mic"
 749         };
 750         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 751         uinfo->count = 1;
 752         uinfo->value.enumerated.items = 2;
 753         if (uinfo->value.enumerated.item > 1)
 754                 uinfo->value.enumerated.item = 1;
 755         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 756         return 0;
 757 }
 758
 759 static int snapper_get_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 760 {
 761         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 762         pmac_tumbler_t *mix = chip->mixer_data;
 763
 764         snd_assert(mix, return -ENODEV);
 765         ucontrol->value.integer.value[0] = mix->capture_source;
 766         return 0;
 767 }
 768
 769 static int snapper_put_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 770 {
 771         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 772         pmac_tumbler_t *mix = chip->mixer_data;
 773         int change;
 774
 775         snd_assert(mix, return -ENODEV);
 776         change = ucontrol->value.integer.value[0] != mix->capture_source;
 777         if (change) {
 778                 mix->capture_source = !!ucontrol->value.integer.value[0];
 779                 snapper_set_capture_source(mix);
 780         }
 781         return change;
 782 }
 783
 784 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 785         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 786         .name = xname, \
 787         .info = snapper_info_mix, \
 788         .get = snapper_get_mix, \
 789         .put = snapper_put_mix, \
 790         .index = idx,\
 791         .private_value = ofs, \
 792 }
 793
 794
 795 /*
 796  */
 797 static snd_kcontrol_new_t tumbler_mixers[] __initdata = {
 798         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 799           .name = "Master Playback Volume",
 800           .info = tumbler_info_master_volume,
 801           .get = tumbler_get_master_volume,
 802           .put = tumbler_put_master_volume
 803         },
 804         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 805           .name = "Master Playback Switch",
 806           .info = snd_pmac_boolean_stereo_info,
 807           .get = tumbler_get_master_switch,
 808           .put = tumbler_put_master_switch
 809         },
 810         DEFINE_MONO("Tone Control - Bass", bass),
 811         DEFINE_MONO("Tone Control - Treble", treble),
 812         DEFINE_MONO("PCM Playback Volume", pcm),
 813         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 814           .name = "DRC Range",
 815           .info = tumbler_info_drc_value,
 816           .get = tumbler_get_drc_value,
 817           .put = tumbler_put_drc_value
 818         },
 819 };
 820
 821 static snd_kcontrol_new_t snapper_mixers[] __initdata = {
 822         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 823           .name = "Master Playback Volume",
 824           .info = tumbler_info_master_volume,
 825           .get = tumbler_get_master_volume,
 826           .put = tumbler_put_master_volume
 827         },
 828         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 829           .name = "Master Playback Switch",
 830           .info = snd_pmac_boolean_stereo_info,
 831           .get = tumbler_get_master_switch,
 832           .put = tumbler_put_master_switch
 833         },
 834         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 835         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
 836         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 837         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 838         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 839         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 840           .name = "DRC Range",
 841           .info = tumbler_info_drc_value,
 842           .get = tumbler_get_drc_value,
 843           .put = tumbler_put_drc_value
 844         },
 845         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 846           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 847           .info = snapper_info_capture_source,
 848           .get = snapper_get_capture_source,
 849           .put = snapper_put_capture_source
 850         },
 851 };
 852
 853 static snd_kcontrol_new_t tumbler_hp_sw __initdata = {
 854         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 855         .name = "Headphone Playback Switch",
 856         .info = snd_pmac_boolean_mono_info,
 857         .get = tumbler_get_mute_switch,
 858         .put = tumbler_put_mute_switch,
 859         .private_value = TUMBLER_MUTE_HP,
 860 };
 861 static snd_kcontrol_new_t tumbler_speaker_sw __initdata = {
 862         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 863         .name = "PC Speaker Playback Switch",
 864         .info = snd_pmac_boolean_mono_info,
 865         .get = tumbler_get_mute_switch,
 866         .put = tumbler_put_mute_switch,
 867         .private_value = TUMBLER_MUTE_AMP,
 868 };
 869 static snd_kcontrol_new_t tumbler_lineout_sw __initdata = {
 870         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 871         .name = "Line Out Playback Switch",
 872         .info = snd_pmac_boolean_mono_info,
 873         .get = tumbler_get_mute_switch,
 874         .put = tumbler_put_mute_switch,
 875         .private_value = TUMBLER_MUTE_LINE,
 876 };
 877 static snd_kcontrol_new_t tumbler_drc_sw __initdata = {
 878         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 879         .name = "DRC Switch",
 880         .info = snd_pmac_boolean_mono_info,
 881         .get = tumbler_get_drc_switch,
 882         .put = tumbler_put_drc_switch
 883 };
 884
 885
 886 #ifdef PMAC_SUPPORT_AUTOMUTE
 887 /*
 888  * auto-mute stuffs
 889  */
 890 static int tumbler_detect_headphone(pmac_t *chip)
 891 {
 892         pmac_tumbler_t *mix = chip->mixer_data;
 893         int detect = 0;
 894
 895         if (mix->hp_detect.addr)
 896                 detect |= read_audio_gpio(&mix->hp_detect);
 897         return detect;
 898 }
 899
 900 static int tumbler_detect_lineout(pmac_t *chip)
 901 {
 902         pmac_tumbler_t *mix = chip->mixer_data;
 903         int detect = 0;
 904
 905         if (mix->line_detect.addr)
 906                 detect |= read_audio_gpio(&mix->line_detect);
 907         return detect;
 908 }
 909
 910 static void check_mute(pmac_t *chip, pmac_gpio_t *gp, int val, int do_notify, snd_kcontrol_t *sw)
 911 {
 912         if (check_audio_gpio(gp) != val) {
 913                 write_audio_gpio(gp, val);
 914                 if (do_notify)
 915                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 916                                        &sw->id);
 917         }
 918 }
 919
 920 static struct work_struct device_change;
 921
 922 static void device_change_handler(void *self)
 923 {
 924         pmac_t *chip = (pmac_t*) self;
 925         pmac_tumbler_t *mix;
 926         int headphone, lineout;
 927
 928         if (!chip)
 929                 return;
 930
 931         mix = chip->mixer_data;
 932         snd_assert(mix, return);
 933
 934         headphone = tumbler_detect_headphone(chip);
 935         lineout = tumbler_detect_lineout(chip);
 936
 937         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
 938
 939         if (headphone || lineout) {
 940                 /* unmute headphone/lineout & mute speaker */
 941                 if (headphone)
 942                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
 943                                    chip->master_sw_ctl);
 944                 if (lineout && mix->line_mute.addr != 0)
 945                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
 946                                    chip->lineout_sw_ctl);
 947                 if (mix->anded_reset)
 948                         msleep(10);
 949                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
 950                            chip->speaker_sw_ctl);
 951         } else {
 952                 /* unmute speaker, mute others */
 953                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
 954                            chip->speaker_sw_ctl);
 955                 if (mix->anded_reset)
 956                         msleep(10);
 957                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
 958                            chip->master_sw_ctl);
 959                 if (mix->line_mute.addr != 0)
 960                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
 961                                    chip->lineout_sw_ctl);
 962         }
 963         if (mix->auto_mute_notify)
 964                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 965                                        &chip->hp_detect_ctl->id);
 966
 967 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
 968         mix->drc_enable = ! (headphone || lineout);
 969         if (mix->auto_mute_notify)
 970                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 971                                &chip->drc_sw_ctl->id);
 972         if (chip->model == PMAC_TUMBLER)
 973                 tumbler_set_drc(mix);
 974         else
 975                 snapper_set_drc(mix);
 976 #endif
 977
 978         /* reset the master volume so the correct amplification is applied */
 979         tumbler_set_master_volume(mix);
 980 }
 981
 982 static void tumbler_update_automute(pmac_t *chip, int do_notify)
 983 {
 984         if (chip->auto_mute) {
 985                 pmac_tumbler_t *mix;
 986                 mix = chip->mixer_data;
 987                 snd_assert(mix, return);
 988                 mix->auto_mute_notify = do_notify;
 989                 schedule_work(&device_change);
 990         }
 991 }
 992 #endif /* PMAC_SUPPORT_AUTOMUTE */
 993
 994
 995 /* interrupt - headphone plug changed */
 996 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
 997 {
 998         pmac_t *chip = devid;
 999         if (chip->update_automute && chip->initialized) {
1000                 chip->update_automute(chip, 1);
1001                 return IRQ_HANDLED;
1002         }
1003         return IRQ_NONE;
1004 }
1005
1006 /* look for audio-gpio device */
1007 static struct device_node *find_audio_device(const char *name)
1008 {
1009         struct device_node *np;
1010
1011         if (! (np = find_devices("gpio")))
1012                 return NULL;
1013
1014         for (np = np->child; np; np = np->sibling) {
1015                 char *property = get_property(np, "audio-gpio", NULL);
1016                 if (property && strcmp(property, name) == 0)
1017                         return np;
1018         }
1019         return NULL;
1020 }
1021
1022 /* look for audio-gpio device */
1023 static struct device_node *find_compatible_audio_device(const char *name)
1024 {
1025         struct device_node *np;
1026
1027         if (! (np = find_devices("gpio")))
1028                 return NULL;
1029
1030         for (np = np->child; np; np = np->sibling) {
1031                 if (device_is_compatible(np, name))
1032                         return np;
1033         }
1034         return NULL;
1035 }
1036
1037 /* find an audio device and get its address */
1038 static long tumbler_find_device(const char *device, const char *platform, pmac_gpio_t *gp, int is_compatible)
1039 {
1040         struct device_node *node;
1041         u32 *base, addr;
1042
1043         if (is_compatible)
1044                 node = find_compatible_audio_device(device);
1045         else
1046                 node = find_audio_device(device);
1047         if (! node) {
1048                 DBG("(W) cannot find audio device %s !\n", device);
1049                 snd_printdd("cannot find device %s\n", device);
1050                 return -ENODEV;
1051         }
1052
1053         base = (u32 *)get_property(node, "AAPL,address", NULL);
1054         if (! base) {
1055                 base = (u32 *)get_property(node, "reg", NULL);
1056                 if (!base) {
1057                         DBG("(E) cannot find address for device %s !\n", device);
1058                         snd_printd("cannot find address for device %s\n", device);
1059                         return -ENODEV;
1060                 }
1061                 addr = *base;
1062                 if (addr < 0x50)
1063                         addr += 0x50;
1064         } else
1065                 addr = *base;
1066
1067         gp->addr = addr & 0x0000ffff;
1068         /* Try to find the active state, default to 0 ! */
1069         base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
1070         if (base) {
1071                 gp->active_state = *base;
1072                 gp->active_val = (*base) ? 0x5 : 0x4;
1073                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1074         } else {
1075                 u32 *prop = NULL;
1076                 gp->active_state = 0;
1077                 gp->active_val = 0x4;
1078                 gp->inactive_val = 0x5;
1079                 /* Here are some crude hacks to extract the GPIO polarity and
1080                  * open collector informations out of the do-platform script
1081                  * as we don't yet have an interpreter for these things
1082                  */
1083                 if (platform)
1084                         prop = (u32 *)get_property(node, platform, NULL);
1085                 if (prop) {
1086                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1087                                 gp->active_val = 0xd;
1088                                 gp->inactive_val = 0xc;
1089                         }
1090                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1091                                 gp->active_val = 0x5;
1092                                 gp->inactive_val = 0x4;
1093                         }
1094                 }
1095         }
1096
1097         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1098             device, gp->addr, gp->active_state);
1099
1100         return (node->n_intrs > 0) ? node->intrs[0].line : 0;
1101 }
1102
1103 /* reset audio */
1104 static void tumbler_reset_audio(pmac_t *chip)
1105 {
1106         pmac_tumbler_t *mix = chip->mixer_data;
1107
1108         if (mix->anded_reset) {
1109                 DBG("(I) codec anded reset !\n");
1110                 write_audio_gpio(&mix->hp_mute, 0);
1111                 write_audio_gpio(&mix->amp_mute, 0);
1112                 msleep(200);
1113                 write_audio_gpio(&mix->hp_mute, 1);
1114                 write_audio_gpio(&mix->amp_mute, 1);
1115                 msleep(100);
1116                 write_audio_gpio(&mix->hp_mute, 0);
1117                 write_audio_gpio(&mix->amp_mute, 0);
1118                 msleep(100);
1119         } else {
1120                 DBG("(I) codec normal reset !\n");
1121
1122                 write_audio_gpio(&mix->audio_reset, 0);
1123                 msleep(200);
1124                 write_audio_gpio(&mix->audio_reset, 1);
1125                 msleep(100);
1126                 write_audio_gpio(&mix->audio_reset, 0);
1127                 msleep(100);
1128         }
1129 }
1130
1131 #ifdef CONFIG_PM
1132 /* suspend mixer */
1133 static void tumbler_suspend(pmac_t *chip)
1134 {
1135         pmac_tumbler_t *mix = chip->mixer_data;
1136
1137         if (mix->headphone_irq >= 0)
1138                 disable_irq(mix->headphone_irq);
1139         if (mix->lineout_irq >= 0)
1140                 disable_irq(mix->lineout_irq);
1141         mix->save_master_switch[0] = mix->master_switch[0];
1142         mix->save_master_switch[1] = mix->master_switch[1];
1143         mix->save_master_vol[0] = mix->master_vol[0];
1144         mix->save_master_vol[1] = mix->master_vol[1];
1145         mix->master_switch[0] = mix->master_switch[1] = 0;
1146         tumbler_set_master_volume(mix);
1147         if (!mix->anded_reset) {
1148                 write_audio_gpio(&mix->amp_mute, 1);
1149                 write_audio_gpio(&mix->hp_mute, 1);
1150         }
1151         if (chip->model == PMAC_SNAPPER) {
1152                 mix->acs |= 1;
1153                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1154         }
1155         if (mix->anded_reset) {
1156                 write_audio_gpio(&mix->amp_mute, 1);
1157                 write_audio_gpio(&mix->hp_mute, 1);
1158         } else
1159                 write_audio_gpio(&mix->audio_reset, 1);
1160 }
1161
1162 /* resume mixer */
1163 static void tumbler_resume(pmac_t *chip)
1164 {
1165         pmac_tumbler_t *mix = chip->mixer_data;
1166
1167         snd_assert(mix, return);
1168
1169         mix->acs &= ~1;
1170         mix->master_switch[0] = mix->save_master_switch[0];
1171         mix->master_switch[1] = mix->save_master_switch[1];
1172         mix->master_vol[0] = mix->save_master_vol[0];
1173         mix->master_vol[1] = mix->save_master_vol[1];
1174         tumbler_reset_audio(chip);
1175         if (mix->i2c.client && mix->i2c.init_client) {
1176                 if (mix->i2c.init_client(&mix->i2c) < 0)
1177                         printk(KERN_ERR "tumbler_init_client error\n");
1178         } else
1179                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1180         if (chip->model == PMAC_TUMBLER) {
1181                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1182                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1183                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1184                 tumbler_set_drc(mix);
1185         } else {
1186                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1187                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1188                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1189                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1190                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1191                 snapper_set_drc(mix);
1192                 snapper_set_capture_source(mix);
1193         }
1194         tumbler_set_master_volume(mix);
1195         if (chip->update_automute)
1196                 chip->update_automute(chip, 0);
1197         if (mix->headphone_irq >= 0) {
1198                 unsigned char val;
1199
1200                 enable_irq(mix->headphone_irq);
1201                 /* activate headphone status interrupts */
1202                 val = do_gpio_read(&mix->hp_detect);
1203                 do_gpio_write(&mix->hp_detect, val | 0x80);
1204         }
1205         if (mix->lineout_irq >= 0)
1206                 enable_irq(mix->lineout_irq);
1207 }
1208 #endif
1209
1210 /* initialize tumbler */
1211 static int __init tumbler_init(pmac_t *chip)
1212 {
1213         int irq;
1214         pmac_tumbler_t *mix = chip->mixer_data;
1215         snd_assert(mix, return -EINVAL);
1216
1217         if (tumbler_find_device("audio-hw-reset",
1218                                 "platform-do-hw-reset",
1219                                 &mix->audio_reset, 0) < 0)
1220                 tumbler_find_device("hw-reset",
1221                                     "platform-do-hw-reset",
1222                                     &mix->audio_reset, 1);
1223         if (tumbler_find_device("amp-mute",
1224                                 "platform-do-amp-mute",
1225                                 &mix->amp_mute, 0) < 0)
1226                 tumbler_find_device("amp-mute",
1227                                     "platform-do-amp-mute",
1228                                     &mix->amp_mute, 1);
1229         if (tumbler_find_device("headphone-mute",
1230                                 "platform-do-headphone-mute",
1231                                 &mix->hp_mute, 0) < 0)
1232                 tumbler_find_device("headphone-mute",
1233                                     "platform-do-headphone-mute",
1234                                     &mix->hp_mute, 1);
1235         if (tumbler_find_device("line-output-mute",
1236                                 "platform-do-lineout-mute",
1237                                 &mix->line_mute, 0) < 0)
1238                 tumbler_find_device("line-output-mute",
1239                                    "platform-do-lineout-mute",
1240                                     &mix->line_mute, 1);
1241         irq = tumbler_find_device("headphone-detect",
1242                                   NULL, &mix->hp_detect, 0);
1243         if (irq < 0)
1244                 irq = tumbler_find_device("headphone-detect",
1245                                           NULL, &mix->hp_detect, 1);
1246         if (irq < 0)
1247                 irq = tumbler_find_device("keywest-gpio15",
1248                                           NULL, &mix->hp_detect, 1);
1249         mix->headphone_irq = irq;
1250         irq = tumbler_find_device("line-output-detect",
1251                                   NULL, &mix->line_detect, 0);
1252         if (irq < 0)
1253                 irq = tumbler_find_device("line-output-detect",
1254                                           NULL, &mix->line_detect, 1);
1255         mix->lineout_irq = irq;
1256
1257         tumbler_reset_audio(chip);
1258
1259         return 0;
1260 }
1261
1262 static void tumbler_cleanup(pmac_t *chip)
1263 {
1264         pmac_tumbler_t *mix = chip->mixer_data;
1265         if (! mix)
1266                 return;
1267
1268         if (mix->headphone_irq >= 0)
1269                 free_irq(mix->headphone_irq, chip);
1270         if (mix->lineout_irq >= 0)
1271                 free_irq(mix->lineout_irq, chip);
1272         tumbler_gpio_free(&mix->audio_reset);
1273         tumbler_gpio_free(&mix->amp_mute);
1274         tumbler_gpio_free(&mix->hp_mute);
1275         tumbler_gpio_free(&mix->hp_detect);
1276         snd_pmac_keywest_cleanup(&mix->i2c);
1277         kfree(mix);
1278         chip->mixer_data = NULL;
1279 }
1280
1281 /* exported */
1282 int __init snd_pmac_tumbler_init(pmac_t *chip)
1283 {
1284         int i, err;
1285         pmac_tumbler_t *mix;
1286         u32 *paddr;
1287         struct device_node *tas_node, *np;
1288         char *chipname;
1289
1290 #ifdef CONFIG_KMOD
1291         if (current->fs->root)
1292                 request_module("i2c-keywest");
1293 #endif /* CONFIG_KMOD */
1294
1295         mix = kmalloc(sizeof(*mix), GFP_KERNEL);
1296         if (! mix)
1297                 return -ENOMEM;
1298         memset(mix, 0, sizeof(*mix));
1299         mix->headphone_irq = -1;
1300
1301         chip->mixer_data = mix;
1302         chip->mixer_free = tumbler_cleanup;
1303         mix->anded_reset = 0;
1304         mix->reset_on_sleep = 1;
1305
1306         for (np = chip->node->child; np; np = np->sibling) {
1307                 if (!strcmp(np->name, "sound")) {
1308                         if (get_property(np, "has-anded-reset", NULL))
1309                                 mix->anded_reset = 1;
1310                         if (get_property(np, "layout-id", NULL))
1311                                 mix->reset_on_sleep = 0;
1312                         break;
1313                 }
1314         }
1315         if ((err = tumbler_init(chip)) < 0)
1316                 return err;
1317
1318         /* set up TAS */
1319         tas_node = find_devices("deq");
1320         if (tas_node == NULL)
1321                 tas_node = find_devices("codec");
1322         if (tas_node == NULL)
1323                 return -ENODEV;
1324
1325         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1326         if (paddr == NULL)
1327                 paddr = (u32 *)get_property(tas_node, "reg", NULL);
1328         if (paddr)
1329                 mix->i2c.addr = (*paddr) >> 1;
1330         else
1331                 mix->i2c.addr = TAS_I2C_ADDR;
1332
1333         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1334
1335         if (chip->model == PMAC_TUMBLER) {
1336                 mix->i2c.init_client = tumbler_init_client;
1337                 mix->i2c.name = "TAS3001c";
1338                 chipname = "Tumbler";
1339         } else {
1340                 mix->i2c.init_client = snapper_init_client;
1341                 mix->i2c.name = "TAS3004";
1342                 chipname = "Snapper";
1343         }
1344
1345         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1346                 return err;
1347
1348         /*
1349          * build mixers
1350          */
1351         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1352
1353         if (chip->model == PMAC_TUMBLER) {
1354                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1355                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1356                                 return err;
1357                 }
1358         } else {
1359                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1360                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1361                                 return err;
1362                 }
1363         }
1364         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1365         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1366                 return err;
1367         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1368         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1369                 return err;
1370         if (mix->line_mute.addr != 0) {
1371                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1372                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1373                         return err;
1374         }
1375         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1376         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1377                 return err;
1378
1379         /* set initial DRC range to 60% */
1380         if (chip->model == PMAC_TUMBLER)
1381                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1382         else
1383                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1384         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1385         if (chip->model == PMAC_TUMBLER)
1386                 tumbler_set_drc(mix);
1387         else
1388                 snapper_set_drc(mix);
1389
1390 #ifdef CONFIG_PM
1391         chip->suspend = tumbler_suspend;
1392         chip->resume = tumbler_resume;
1393 #endif
1394
1395         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1396
1397 #ifdef PMAC_SUPPORT_AUTOMUTE
1398         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1399             && (err = snd_pmac_add_automute(chip)) < 0)
1400                 return err;
1401         chip->detect_headphone = tumbler_detect_headphone;
1402         chip->update_automute = tumbler_update_automute;
1403         tumbler_update_automute(chip, 0); /* update the status only */
1404
1405         /* activate headphone status interrupts */
1406         if (mix->headphone_irq >= 0) {
1407                 unsigned char val;
1408                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1409                                        "Sound Headphone Detection", chip)) < 0)
1410                         return 0;
1411                 /* activate headphone status interrupts */
1412                 val = do_gpio_read(&mix->hp_detect);
1413                 do_gpio_write(&mix->hp_detect, val | 0x80);
1414         }
1415         if (mix->lineout_irq >= 0) {
1416                 unsigned char val;
1417                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1418                                        "Sound Lineout Detection", chip)) < 0)
1419                         return 0;
1420                 /* activate headphone status interrupts */
1421                 val = do_gpio_read(&mix->line_detect);
1422                 do_gpio_write(&mix->line_detect, val | 0x80);
1423         }
1424 #endif
1425
1426         return 0;
1427 }