sound/ppc/tumbler.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * PMac Tumbler/Snapper lowlevel functions
   4  *
   5  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
   6  *
   7  *   Rene Rebe <rene.rebe@gmx.net>:
   8  *     * update from shadow registers on wakeup and headphone plug
   9  *     * automatically toggle DRC on headphone plug
  10  */
  11
  12
  13 #include <linux/init.h>
  14 #include <linux/delay.h>
  15 #include <linux/i2c.h>
  16 #include <linux/kmod.h>
  17 #include <linux/slab.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/string.h>
  20 #include <linux/of_irq.h>
  21 #include <linux/io.h>
  22 #include <sound/core.h>
  23 #include <asm/irq.h>
  24 #include <asm/machdep.h>
  25 #include <asm/pmac_feature.h>
  26 #include "pmac.h"
  27 #include "tumbler_volume.h"
  28
  29 #undef DEBUG
  30
  31 #ifdef DEBUG
  32 #define DBG(fmt...) printk(KERN_DEBUG fmt)
  33 #else
  34 #define DBG(fmt...)
  35 #endif
  36
  37 #define IS_G4DA (of_machine_is_compatible("PowerMac3,4"))
  38
  39 /* i2c address for tumbler */
  40 #define TAS_I2C_ADDR    0x34
  41
  42 /* registers */
  43 #define TAS_REG_MCS     0x01    /* main control */
  44 #define TAS_REG_DRC     0x02
  45 #define TAS_REG_VOL     0x04
  46 #define TAS_REG_TREBLE  0x05
  47 #define TAS_REG_BASS    0x06
  48 #define TAS_REG_INPUT1  0x07
  49 #define TAS_REG_INPUT2  0x08
  50
  51 /* tas3001c */
  52 #define TAS_REG_PCM     TAS_REG_INPUT1
  53
  54 /* tas3004 */
  55 #define TAS_REG_LMIX    TAS_REG_INPUT1
  56 #define TAS_REG_RMIX    TAS_REG_INPUT2
  57 #define TAS_REG_MCS2    0x43            /* main control 2 */
  58 #define TAS_REG_ACS     0x40            /* analog control */
  59
  60 /* mono volumes for tas3001c/tas3004 */
  61 enum {
  62         VOL_IDX_PCM_MONO, /* tas3001c only */
  63         VOL_IDX_BASS, VOL_IDX_TREBLE,
  64         VOL_IDX_LAST_MONO
  65 };
  66
  67 /* stereo volumes for tas3004 */
  68 enum {
  69         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
  70         VOL_IDX_LAST_MIX
  71 };
  72
  73 struct pmac_gpio {
  74         unsigned int addr;
  75         u8 active_val;
  76         u8 inactive_val;
  77         u8 active_state;
  78 };
  79
  80 struct pmac_tumbler {
  81         struct pmac_keywest i2c;
  82         struct pmac_gpio audio_reset;
  83         struct pmac_gpio amp_mute;
  84         struct pmac_gpio line_mute;
  85         struct pmac_gpio line_detect;
  86         struct pmac_gpio hp_mute;
  87         struct pmac_gpio hp_detect;
  88         int headphone_irq;
  89         int lineout_irq;
  90         unsigned int save_master_vol[2];
  91         unsigned int master_vol[2];
  92         unsigned int save_master_switch[2];
  93         unsigned int master_switch[2];
  94         unsigned int mono_vol[VOL_IDX_LAST_MONO];
  95         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
  96         int drc_range;
  97         int drc_enable;
  98         int capture_source;
  99         int anded_reset;
 100         int auto_mute_notify;
 101         int reset_on_sleep;
 102         u8  acs;
 103 };
 104
 105
 106 /*
 107  */
 108
 109 static int send_init_client(struct pmac_keywest *i2c, const unsigned int *regs)
 110 {
 111         while (*regs > 0) {
 112                 int err, count = 10;
 113                 do {
 114                         err = i2c_smbus_write_byte_data(i2c->client,
 115                                                         regs[0], regs[1]);
 116                         if (err >= 0)
 117                                 break;
 118                         DBG("(W) i2c error %d\n", err);
 119                         mdelay(10);
 120                 } while (count--);
 121                 if (err < 0)
 122                         return -ENXIO;
 123                 regs += 2;
 124         }
 125         return 0;
 126 }
 127
 128
 129 static int tumbler_init_client(struct pmac_keywest *i2c)
 130 {
 131         static const unsigned int regs[] = {
 132                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
 133                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
 134                 0, /* terminator */
 135         };
 136         DBG("(I) tumbler init client\n");
 137         return send_init_client(i2c, regs);
 138 }
 139
 140 static int snapper_init_client(struct pmac_keywest *i2c)
 141 {
 142         static const unsigned int regs[] = {
 143                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
 144                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
 145                 /* normal operation, all-pass mode */
 146                 TAS_REG_MCS2, (1<<1),
 147                 /* normal output, no deemphasis, A input, power-up, line-in */
 148                 TAS_REG_ACS, 0,
 149                 0, /* terminator */
 150         };
 151         DBG("(I) snapper init client\n");
 152         return send_init_client(i2c, regs);
 153 }
 154
 155 /*
 156  * gpio access
 157  */
 158 #define do_gpio_write(gp, val) \
 159         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
 160 #define do_gpio_read(gp) \
 161         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
 162 #define tumbler_gpio_free(gp) /* NOP */
 163
 164 static void write_audio_gpio(struct pmac_gpio *gp, int active)
 165 {
 166         if (! gp->addr)
 167                 return;
 168         active = active ? gp->active_val : gp->inactive_val;
 169         do_gpio_write(gp, active);
 170         DBG("(I) gpio %x write %d\n", gp->addr, active);
 171 }
 172
 173 static int check_audio_gpio(struct pmac_gpio *gp)
 174 {
 175         int ret;
 176
 177         if (! gp->addr)
 178                 return 0;
 179
 180         ret = do_gpio_read(gp);
 181
 182         return (ret & 0x1) == (gp->active_val & 0x1);
 183 }
 184
 185 static int read_audio_gpio(struct pmac_gpio *gp)
 186 {
 187         int ret;
 188         if (! gp->addr)
 189                 return 0;
 190         ret = do_gpio_read(gp);
 191         ret = (ret & 0x02) !=0;
 192         return ret == gp->active_state;
 193 }
 194
 195 /*
 196  * update master volume
 197  */
 198 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
 199 {
 200         unsigned char block[6];
 201         unsigned int left_vol, right_vol;
 202
 203         if (! mix->i2c.client)
 204                 return -ENODEV;
 205
 206         if (! mix->master_switch[0])
 207                 left_vol = 0;
 208         else {
 209                 left_vol = mix->master_vol[0];
 210                 if (left_vol >= ARRAY_SIZE(master_volume_table))
 211                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
 212                 left_vol = master_volume_table[left_vol];
 213         }
 214         if (! mix->master_switch[1])
 215                 right_vol = 0;
 216         else {
 217                 right_vol = mix->master_vol[1];
 218                 if (right_vol >= ARRAY_SIZE(master_volume_table))
 219                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
 220                 right_vol = master_volume_table[right_vol];
 221         }
 222
 223         block[0] = (left_vol >> 16) & 0xff;
 224         block[1] = (left_vol >> 8)  & 0xff;
 225         block[2] = (left_vol >> 0)  & 0xff;
 226
 227         block[3] = (right_vol >> 16) & 0xff;
 228         block[4] = (right_vol >> 8)  & 0xff;
 229         block[5] = (right_vol >> 0)  & 0xff;
 230
 231         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
 232                                            block) < 0) {
 233                 snd_printk(KERN_ERR "failed to set volume \n");
 234                 return -EINVAL;
 235         }
 236         DBG("(I) succeeded to set volume (%u, %u)\n", left_vol, right_vol);
 237         return 0;
 238 }
 239
 240
 241 /* output volume */
 242 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
 243                                       struct snd_ctl_elem_info *uinfo)
 244 {
 245         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 246         uinfo->count = 2;
 247         uinfo->value.integer.min = 0;
 248         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
 249         return 0;
 250 }
 251
 252 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
 253                                      struct snd_ctl_elem_value *ucontrol)
 254 {
 255         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 256         struct pmac_tumbler *mix = chip->mixer_data;
 257
 258         ucontrol->value.integer.value[0] = mix->master_vol[0];
 259         ucontrol->value.integer.value[1] = mix->master_vol[1];
 260         return 0;
 261 }
 262
 263 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
 264                                      struct snd_ctl_elem_value *ucontrol)
 265 {
 266         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 267         struct pmac_tumbler *mix = chip->mixer_data;
 268         unsigned int vol[2];
 269         int change;
 270
 271         vol[0] = ucontrol->value.integer.value[0];
 272         vol[1] = ucontrol->value.integer.value[1];
 273         if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
 274             vol[1] >= ARRAY_SIZE(master_volume_table))
 275                 return -EINVAL;
 276         change = mix->master_vol[0] != vol[0] ||
 277                 mix->master_vol[1] != vol[1];
 278         if (change) {
 279                 mix->master_vol[0] = vol[0];
 280                 mix->master_vol[1] = vol[1];
 281                 tumbler_set_master_volume(mix);
 282         }
 283         return change;
 284 }
 285
 286 /* output switch */
 287 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
 288                                      struct snd_ctl_elem_value *ucontrol)
 289 {
 290         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 291         struct pmac_tumbler *mix = chip->mixer_data;
 292
 293         ucontrol->value.integer.value[0] = mix->master_switch[0];
 294         ucontrol->value.integer.value[1] = mix->master_switch[1];
 295         return 0;
 296 }
 297
 298 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
 299                                      struct snd_ctl_elem_value *ucontrol)
 300 {
 301         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 302         struct pmac_tumbler *mix = chip->mixer_data;
 303         int change;
 304
 305         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
 306                 mix->master_switch[1] != ucontrol->value.integer.value[1];
 307         if (change) {
 308                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
 309                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
 310                 tumbler_set_master_volume(mix);
 311         }
 312         return change;
 313 }
 314
 315
 316 /*
 317  * TAS3001c dynamic range compression
 318  */
 319
 320 #define TAS3001_DRC_MAX         0x5f
 321
 322 static int tumbler_set_drc(struct pmac_tumbler *mix)
 323 {
 324         unsigned char val[2];
 325
 326         if (! mix->i2c.client)
 327                 return -ENODEV;
 328
 329         if (mix->drc_enable) {
 330                 val[0] = 0xc1; /* enable, 3:1 compression */
 331                 if (mix->drc_range > TAS3001_DRC_MAX)
 332                         val[1] = 0xf0;
 333                 else if (mix->drc_range < 0)
 334                         val[1] = 0x91;
 335                 else
 336                         val[1] = mix->drc_range + 0x91;
 337         } else {
 338                 val[0] = 0;
 339                 val[1] = 0;
 340         }
 341
 342         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 343                                            2, val) < 0) {
 344                 snd_printk(KERN_ERR "failed to set DRC\n");
 345                 return -EINVAL;
 346         }
 347         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
 348         return 0;
 349 }
 350
 351 /*
 352  * TAS3004
 353  */
 354
 355 #define TAS3004_DRC_MAX         0xef
 356
 357 static int snapper_set_drc(struct pmac_tumbler *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_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
 380                                            6, val) < 0) {
 381                 snd_printk(KERN_ERR "failed to set DRC\n");
 382                 return -EINVAL;
 383         }
 384         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
 385         return 0;
 386 }
 387
 388 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
 389                                   struct snd_ctl_elem_info *uinfo)
 390 {
 391         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 392         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 393         uinfo->count = 1;
 394         uinfo->value.integer.min = 0;
 395         uinfo->value.integer.max =
 396                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
 397         return 0;
 398 }
 399
 400 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
 401                                  struct snd_ctl_elem_value *ucontrol)
 402 {
 403         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 404         struct pmac_tumbler *mix;
 405         if (! (mix = chip->mixer_data))
 406                 return -ENODEV;
 407         ucontrol->value.integer.value[0] = mix->drc_range;
 408         return 0;
 409 }
 410
 411 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
 412                                  struct snd_ctl_elem_value *ucontrol)
 413 {
 414         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 415         struct pmac_tumbler *mix;
 416         unsigned int val;
 417         int change;
 418
 419         if (! (mix = chip->mixer_data))
 420                 return -ENODEV;
 421         val = ucontrol->value.integer.value[0];
 422         if (chip->model == PMAC_TUMBLER) {
 423                 if (val > TAS3001_DRC_MAX)
 424                         return -EINVAL;
 425         } else {
 426                 if (val > TAS3004_DRC_MAX)
 427                         return -EINVAL;
 428         }
 429         change = mix->drc_range != val;
 430         if (change) {
 431                 mix->drc_range = val;
 432                 if (chip->model == PMAC_TUMBLER)
 433                         tumbler_set_drc(mix);
 434                 else
 435                         snapper_set_drc(mix);
 436         }
 437         return change;
 438 }
 439
 440 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
 441                                   struct snd_ctl_elem_value *ucontrol)
 442 {
 443         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 444         struct pmac_tumbler *mix;
 445         if (! (mix = chip->mixer_data))
 446                 return -ENODEV;
 447         ucontrol->value.integer.value[0] = mix->drc_enable;
 448         return 0;
 449 }
 450
 451 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
 452                                   struct snd_ctl_elem_value *ucontrol)
 453 {
 454         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 455         struct pmac_tumbler *mix;
 456         int change;
 457
 458         if (! (mix = chip->mixer_data))
 459                 return -ENODEV;
 460         change = mix->drc_enable != ucontrol->value.integer.value[0];
 461         if (change) {
 462                 mix->drc_enable = !!ucontrol->value.integer.value[0];
 463                 if (chip->model == PMAC_TUMBLER)
 464                         tumbler_set_drc(mix);
 465                 else
 466                         snapper_set_drc(mix);
 467         }
 468         return change;
 469 }
 470
 471
 472 /*
 473  * mono volumes
 474  */
 475
 476 struct tumbler_mono_vol {
 477         int index;
 478         int reg;
 479         int bytes;
 480         unsigned int max;
 481         const unsigned int *table;
 482 };
 483
 484 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
 485                                    const struct tumbler_mono_vol *info)
 486 {
 487         unsigned char block[4];
 488         unsigned int vol;
 489         int i;
 490
 491         if (! mix->i2c.client)
 492                 return -ENODEV;
 493
 494         vol = mix->mono_vol[info->index];
 495         if (vol >= info->max)
 496                 vol = info->max - 1;
 497         vol = info->table[vol];
 498         for (i = 0; i < info->bytes; i++)
 499                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
 500         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
 501                                            info->bytes, block) < 0) {
 502                 snd_printk(KERN_ERR "failed to set mono volume %d\n",
 503                            info->index);
 504                 return -EINVAL;
 505         }
 506         return 0;
 507 }
 508
 509 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
 510                              struct snd_ctl_elem_info *uinfo)
 511 {
 512         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 513
 514         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 515         uinfo->count = 1;
 516         uinfo->value.integer.min = 0;
 517         uinfo->value.integer.max = info->max - 1;
 518         return 0;
 519 }
 520
 521 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
 522                             struct snd_ctl_elem_value *ucontrol)
 523 {
 524         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 525         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 526         struct pmac_tumbler *mix;
 527         if (! (mix = chip->mixer_data))
 528                 return -ENODEV;
 529         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
 530         return 0;
 531 }
 532
 533 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
 534                             struct snd_ctl_elem_value *ucontrol)
 535 {
 536         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 537         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 538         struct pmac_tumbler *mix;
 539         unsigned int vol;
 540         int change;
 541
 542         if (! (mix = chip->mixer_data))
 543                 return -ENODEV;
 544         vol = ucontrol->value.integer.value[0];
 545         if (vol >= info->max)
 546                 return -EINVAL;
 547         change = mix->mono_vol[info->index] != vol;
 548         if (change) {
 549                 mix->mono_vol[info->index] = vol;
 550                 tumbler_set_mono_volume(mix, info);
 551         }
 552         return change;
 553 }
 554
 555 /* TAS3001c mono volumes */
 556 static const struct tumbler_mono_vol tumbler_pcm_vol_info = {
 557         .index = VOL_IDX_PCM_MONO,
 558         .reg = TAS_REG_PCM,
 559         .bytes = 3,
 560         .max = ARRAY_SIZE(mixer_volume_table),
 561         .table = mixer_volume_table,
 562 };
 563
 564 static const struct tumbler_mono_vol tumbler_bass_vol_info = {
 565         .index = VOL_IDX_BASS,
 566         .reg = TAS_REG_BASS,
 567         .bytes = 1,
 568         .max = ARRAY_SIZE(bass_volume_table),
 569         .table = bass_volume_table,
 570 };
 571
 572 static const struct tumbler_mono_vol tumbler_treble_vol_info = {
 573         .index = VOL_IDX_TREBLE,
 574         .reg = TAS_REG_TREBLE,
 575         .bytes = 1,
 576         .max = ARRAY_SIZE(treble_volume_table),
 577         .table = treble_volume_table,
 578 };
 579
 580 /* TAS3004 mono volumes */
 581 static const struct tumbler_mono_vol snapper_bass_vol_info = {
 582         .index = VOL_IDX_BASS,
 583         .reg = TAS_REG_BASS,
 584         .bytes = 1,
 585         .max = ARRAY_SIZE(snapper_bass_volume_table),
 586         .table = snapper_bass_volume_table,
 587 };
 588
 589 static const struct tumbler_mono_vol snapper_treble_vol_info = {
 590         .index = VOL_IDX_TREBLE,
 591         .reg = TAS_REG_TREBLE,
 592         .bytes = 1,
 593         .max = ARRAY_SIZE(snapper_treble_volume_table),
 594         .table = snapper_treble_volume_table,
 595 };
 596
 597
 598 #define DEFINE_MONO(xname,type) { \
 599         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 600         .name = xname, \
 601         .info = tumbler_info_mono, \
 602         .get = tumbler_get_mono, \
 603         .put = tumbler_put_mono, \
 604         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
 605 }
 606
 607 #define DEFINE_SNAPPER_MONO(xname,type) { \
 608         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 609         .name = xname, \
 610         .info = tumbler_info_mono, \
 611         .get = tumbler_get_mono, \
 612         .put = tumbler_put_mono, \
 613         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
 614 }
 615
 616
 617 /*
 618  * snapper mixer volumes
 619  */
 620
 621 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
 622 {
 623         int i, j, vol;
 624         unsigned char block[9];
 625
 626         vol = mix->mix_vol[idx][ch];
 627         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
 628                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
 629                 mix->mix_vol[idx][ch] = vol;
 630         }
 631
 632         for (i = 0; i < 3; i++) {
 633                 vol = mix->mix_vol[i][ch];
 634                 vol = mixer_volume_table[vol];
 635                 for (j = 0; j < 3; j++)
 636                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
 637         }
 638         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
 639                                            9, block) < 0) {
 640                 snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
 641                 return -EINVAL;
 642         }
 643         return 0;
 644 }
 645
 646 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
 647 {
 648         if (! mix->i2c.client)
 649                 return -ENODEV;
 650         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 651             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 652                 return -EINVAL;
 653         return 0;
 654 }
 655
 656 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
 657                             struct snd_ctl_elem_info *uinfo)
 658 {
 659         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 660         uinfo->count = 2;
 661         uinfo->value.integer.min = 0;
 662         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 663         return 0;
 664 }
 665
 666 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
 667                            struct snd_ctl_elem_value *ucontrol)
 668 {
 669         int idx = (int)kcontrol->private_value;
 670         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 671         struct pmac_tumbler *mix;
 672         if (! (mix = chip->mixer_data))
 673                 return -ENODEV;
 674         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 675         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 676         return 0;
 677 }
 678
 679 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
 680                            struct snd_ctl_elem_value *ucontrol)
 681 {
 682         int idx = (int)kcontrol->private_value;
 683         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 684         struct pmac_tumbler *mix;
 685         unsigned int vol[2];
 686         int change;
 687
 688         if (! (mix = chip->mixer_data))
 689                 return -ENODEV;
 690         vol[0] = ucontrol->value.integer.value[0];
 691         vol[1] = ucontrol->value.integer.value[1];
 692         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
 693             vol[1] >= ARRAY_SIZE(mixer_volume_table))
 694                 return -EINVAL;
 695         change = mix->mix_vol[idx][0] != vol[0] ||
 696                 mix->mix_vol[idx][1] != vol[1];
 697         if (change) {
 698                 mix->mix_vol[idx][0] = vol[0];
 699                 mix->mix_vol[idx][1] = vol[1];
 700                 snapper_set_mix_vol(mix, idx);
 701         }
 702         return change;
 703 }
 704
 705
 706 /*
 707  * mute switches. FIXME: Turn that into software mute when both outputs are muted
 708  * to avoid codec reset on ibook M7
 709  */
 710
 711 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
 712
 713 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
 714                                    struct snd_ctl_elem_value *ucontrol)
 715 {
 716         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 717         struct pmac_tumbler *mix;
 718         struct pmac_gpio *gp;
 719         if (! (mix = chip->mixer_data))
 720                 return -ENODEV;
 721         switch(kcontrol->private_value) {
 722         case TUMBLER_MUTE_HP:
 723                 gp = &mix->hp_mute;     break;
 724         case TUMBLER_MUTE_AMP:
 725                 gp = &mix->amp_mute;    break;
 726         case TUMBLER_MUTE_LINE:
 727                 gp = &mix->line_mute;   break;
 728         default:
 729                 gp = NULL;
 730         }
 731         if (gp == NULL)
 732                 return -EINVAL;
 733         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
 734         return 0;
 735 }
 736
 737 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
 738                                    struct snd_ctl_elem_value *ucontrol)
 739 {
 740         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 741         struct pmac_tumbler *mix;
 742         struct pmac_gpio *gp;
 743         int val;
 744 #ifdef PMAC_SUPPORT_AUTOMUTE
 745         if (chip->update_automute && chip->auto_mute)
 746                 return 0; /* don't touch in the auto-mute mode */
 747 #endif
 748         if (! (mix = chip->mixer_data))
 749                 return -ENODEV;
 750         switch(kcontrol->private_value) {
 751         case TUMBLER_MUTE_HP:
 752                 gp = &mix->hp_mute;     break;
 753         case TUMBLER_MUTE_AMP:
 754                 gp = &mix->amp_mute;    break;
 755         case TUMBLER_MUTE_LINE:
 756                 gp = &mix->line_mute;   break;
 757         default:
 758                 gp = NULL;
 759         }
 760         if (gp == NULL)
 761                 return -EINVAL;
 762         val = ! check_audio_gpio(gp);
 763         if (val != ucontrol->value.integer.value[0]) {
 764                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 765                 return 1;
 766         }
 767         return 0;
 768 }
 769
 770 static int snapper_set_capture_source(struct pmac_tumbler *mix)
 771 {
 772         if (! mix->i2c.client)
 773                 return -ENODEV;
 774         if (mix->capture_source)
 775                 mix->acs |= 2;
 776         else
 777                 mix->acs &= ~2;
 778         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
 779 }
 780
 781 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
 782                                        struct snd_ctl_elem_info *uinfo)
 783 {
 784         static const char * const texts[2] = {
 785                 "Line", "Mic"
 786         };
 787
 788         return snd_ctl_enum_info(uinfo, 1, 2, texts);
 789 }
 790
 791 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
 792                                       struct snd_ctl_elem_value *ucontrol)
 793 {
 794         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 795         struct pmac_tumbler *mix = chip->mixer_data;
 796
 797         ucontrol->value.enumerated.item[0] = mix->capture_source;
 798         return 0;
 799 }
 800
 801 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
 802                                       struct snd_ctl_elem_value *ucontrol)
 803 {
 804         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
 805         struct pmac_tumbler *mix = chip->mixer_data;
 806         int change;
 807
 808         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
 809         if (change) {
 810                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
 811                 snapper_set_capture_source(mix);
 812         }
 813         return change;
 814 }
 815
 816 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 817         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 818         .name = xname, \
 819         .info = snapper_info_mix, \
 820         .get = snapper_get_mix, \
 821         .put = snapper_put_mix, \
 822         .index = idx,\
 823         .private_value = ofs, \
 824 }
 825
 826
 827 /*
 828  */
 829 static const struct snd_kcontrol_new tumbler_mixers[] = {
 830         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 831           .name = "Master Playback Volume",
 832           .info = tumbler_info_master_volume,
 833           .get = tumbler_get_master_volume,
 834           .put = tumbler_put_master_volume
 835         },
 836         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 837           .name = "Master Playback Switch",
 838           .info = snd_pmac_boolean_stereo_info,
 839           .get = tumbler_get_master_switch,
 840           .put = tumbler_put_master_switch
 841         },
 842         DEFINE_MONO("Tone Control - Bass", bass),
 843         DEFINE_MONO("Tone Control - Treble", treble),
 844         DEFINE_MONO("PCM Playback Volume", pcm),
 845         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 846           .name = "DRC Range",
 847           .info = tumbler_info_drc_value,
 848           .get = tumbler_get_drc_value,
 849           .put = tumbler_put_drc_value
 850         },
 851 };
 852
 853 static const struct snd_kcontrol_new snapper_mixers[] = {
 854         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 855           .name = "Master Playback Volume",
 856           .info = tumbler_info_master_volume,
 857           .get = tumbler_get_master_volume,
 858           .put = tumbler_put_master_volume
 859         },
 860         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 861           .name = "Master Playback Switch",
 862           .info = snd_pmac_boolean_stereo_info,
 863           .get = tumbler_get_master_switch,
 864           .put = tumbler_put_master_switch
 865         },
 866         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 867         /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
 868         DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
 869         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 870         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 871         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 872         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 873           .name = "DRC Range",
 874           .info = tumbler_info_drc_value,
 875           .get = tumbler_get_drc_value,
 876           .put = tumbler_put_drc_value
 877         },
 878         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 879           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 880           .info = snapper_info_capture_source,
 881           .get = snapper_get_capture_source,
 882           .put = snapper_put_capture_source
 883         },
 884 };
 885
 886 static const struct snd_kcontrol_new tumbler_hp_sw = {
 887         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 888         .name = "Headphone Playback Switch",
 889         .info = snd_pmac_boolean_mono_info,
 890         .get = tumbler_get_mute_switch,
 891         .put = tumbler_put_mute_switch,
 892         .private_value = TUMBLER_MUTE_HP,
 893 };
 894 static const struct snd_kcontrol_new tumbler_speaker_sw = {
 895         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 896         .name = "Speaker Playback Switch",
 897         .info = snd_pmac_boolean_mono_info,
 898         .get = tumbler_get_mute_switch,
 899         .put = tumbler_put_mute_switch,
 900         .private_value = TUMBLER_MUTE_AMP,
 901 };
 902 static const struct snd_kcontrol_new tumbler_lineout_sw = {
 903         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 904         .name = "Line Out Playback Switch",
 905         .info = snd_pmac_boolean_mono_info,
 906         .get = tumbler_get_mute_switch,
 907         .put = tumbler_put_mute_switch,
 908         .private_value = TUMBLER_MUTE_LINE,
 909 };
 910 static const struct snd_kcontrol_new tumbler_drc_sw = {
 911         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 912         .name = "DRC Switch",
 913         .info = snd_pmac_boolean_mono_info,
 914         .get = tumbler_get_drc_switch,
 915         .put = tumbler_put_drc_switch
 916 };
 917
 918
 919 #ifdef PMAC_SUPPORT_AUTOMUTE
 920 /*
 921  * auto-mute stuffs
 922  */
 923 static int tumbler_detect_headphone(struct snd_pmac *chip)
 924 {
 925         struct pmac_tumbler *mix = chip->mixer_data;
 926         int detect = 0;
 927
 928         if (mix->hp_detect.addr)
 929                 detect |= read_audio_gpio(&mix->hp_detect);
 930         return detect;
 931 }
 932
 933 static int tumbler_detect_lineout(struct snd_pmac *chip)
 934 {
 935         struct pmac_tumbler *mix = chip->mixer_data;
 936         int detect = 0;
 937
 938         if (mix->line_detect.addr)
 939                 detect |= read_audio_gpio(&mix->line_detect);
 940         return detect;
 941 }
 942
 943 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
 944                        struct snd_kcontrol *sw)
 945 {
 946         if (check_audio_gpio(gp) != val) {
 947                 write_audio_gpio(gp, val);
 948                 if (do_notify)
 949                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 950                                        &sw->id);
 951         }
 952 }
 953
 954 static struct work_struct device_change;
 955 static struct snd_pmac *device_change_chip;
 956
 957 static void device_change_handler(struct work_struct *work)
 958 {
 959         struct snd_pmac *chip = device_change_chip;
 960         struct pmac_tumbler *mix;
 961         int headphone, lineout;
 962
 963         if (!chip)
 964                 return;
 965
 966         mix = chip->mixer_data;
 967         if (snd_BUG_ON(!mix))
 968                 return;
 969
 970         headphone = tumbler_detect_headphone(chip);
 971         lineout = tumbler_detect_lineout(chip);
 972
 973         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
 974
 975         if (headphone || lineout) {
 976                 /* unmute headphone/lineout & mute speaker */
 977                 if (headphone)
 978                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
 979                                    chip->master_sw_ctl);
 980                 if (lineout && mix->line_mute.addr != 0)
 981                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
 982                                    chip->lineout_sw_ctl);
 983                 if (mix->anded_reset)
 984                         msleep(10);
 985                 check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
 986                            chip->speaker_sw_ctl);
 987         } else {
 988                 /* unmute speaker, mute others */
 989                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
 990                            chip->speaker_sw_ctl);
 991                 if (mix->anded_reset)
 992                         msleep(10);
 993                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
 994                            chip->master_sw_ctl);
 995                 if (mix->line_mute.addr != 0)
 996                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
 997                                    chip->lineout_sw_ctl);
 998         }
 999         if (mix->auto_mute_notify)
1000                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1001                                        &chip->hp_detect_ctl->id);
1002
1003 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1004         mix->drc_enable = ! (headphone || lineout);
1005         if (mix->auto_mute_notify)
1006                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1007                                &chip->drc_sw_ctl->id);
1008         if (chip->model == PMAC_TUMBLER)
1009                 tumbler_set_drc(mix);
1010         else
1011                 snapper_set_drc(mix);
1012 #endif
1013
1014         /* reset the master volume so the correct amplification is applied */
1015         tumbler_set_master_volume(mix);
1016 }
1017
1018 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1019 {
1020         if (chip->auto_mute) {
1021                 struct pmac_tumbler *mix;
1022                 mix = chip->mixer_data;
1023                 if (snd_BUG_ON(!mix))
1024                         return;
1025                 mix->auto_mute_notify = do_notify;
1026                 schedule_work(&device_change);
1027         }
1028 }
1029 #endif /* PMAC_SUPPORT_AUTOMUTE */
1030
1031
1032 /* interrupt - headphone plug changed */
1033 static irqreturn_t headphone_intr(int irq, void *devid)
1034 {
1035         struct snd_pmac *chip = devid;
1036         if (chip->update_automute && chip->initialized) {
1037                 chip->update_automute(chip, 1);
1038                 return IRQ_HANDLED;
1039         }
1040         return IRQ_NONE;
1041 }
1042
1043 /* look for audio-gpio device */
1044 static struct device_node *find_audio_device(const char *name)
1045 {
1046         struct device_node *gpiop;
1047         struct device_node *np;
1048
1049         gpiop = of_find_node_by_name(NULL, "gpio");
1050         if (! gpiop)
1051                 return NULL;
1052
1053         for (np = of_get_next_child(gpiop, NULL); np;
1054                         np = of_get_next_child(gpiop, np)) {
1055                 const char *property = of_get_property(np, "audio-gpio", NULL);
1056                 if (property && strcmp(property, name) == 0)
1057                         break;
1058         }
1059         of_node_put(gpiop);
1060         return np;
1061 }
1062
1063 /* look for audio-gpio device */
1064 static struct device_node *find_compatible_audio_device(const char *name)
1065 {
1066         struct device_node *gpiop;
1067         struct device_node *np;
1068
1069         gpiop = of_find_node_by_name(NULL, "gpio");
1070         if (!gpiop)
1071                 return NULL;
1072
1073         for (np = of_get_next_child(gpiop, NULL); np;
1074                         np = of_get_next_child(gpiop, np)) {
1075                 if (of_device_is_compatible(np, name))
1076                         break;
1077         }
1078         of_node_put(gpiop);
1079         return np;
1080 }
1081
1082 /* find an audio device and get its address */
1083 static long tumbler_find_device(const char *device, const char *platform,
1084                                 struct pmac_gpio *gp, int is_compatible)
1085 {
1086         struct device_node *node;
1087         const u32 *base;
1088         u32 addr;
1089         long ret;
1090
1091         if (is_compatible)
1092                 node = find_compatible_audio_device(device);
1093         else
1094                 node = find_audio_device(device);
1095         if (! node) {
1096                 DBG("(W) cannot find audio device %s !\n", device);
1097                 snd_printdd("cannot find device %s\n", device);
1098                 return -ENODEV;
1099         }
1100
1101         base = of_get_property(node, "AAPL,address", NULL);
1102         if (! base) {
1103                 base = of_get_property(node, "reg", NULL);
1104                 if (!base) {
1105                         DBG("(E) cannot find address for device %s !\n", device);
1106                         snd_printd("cannot find address for device %s\n", device);
1107                         of_node_put(node);
1108                         return -ENODEV;
1109                 }
1110                 addr = *base;
1111                 if (addr < 0x50)
1112                         addr += 0x50;
1113         } else
1114                 addr = *base;
1115
1116         gp->addr = addr & 0x0000ffff;
1117         /* Try to find the active state, default to 0 ! */
1118         base = of_get_property(node, "audio-gpio-active-state", NULL);
1119         if (base) {
1120                 gp->active_state = *base;
1121                 gp->active_val = (*base) ? 0x5 : 0x4;
1122                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1123         } else {
1124                 const u32 *prop = NULL;
1125                 gp->active_state = IS_G4DA
1126                                 && !strncmp(device, "keywest-gpio1", 13);
1127                 gp->active_val = 0x4;
1128                 gp->inactive_val = 0x5;
1129                 /* Here are some crude hacks to extract the GPIO polarity and
1130                  * open collector informations out of the do-platform script
1131                  * as we don't yet have an interpreter for these things
1132                  */
1133                 if (platform)
1134                         prop = of_get_property(node, platform, NULL);
1135                 if (prop) {
1136                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1137                                 gp->active_val = 0xd;
1138                                 gp->inactive_val = 0xc;
1139                         }
1140                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1141                                 gp->active_val = 0x5;
1142                                 gp->inactive_val = 0x4;
1143                         }
1144                 }
1145         }
1146
1147         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1148             device, gp->addr, gp->active_state);
1149
1150         ret = irq_of_parse_and_map(node, 0);
1151         of_node_put(node);
1152         return ret;
1153 }
1154
1155 /* reset audio */
1156 static void tumbler_reset_audio(struct snd_pmac *chip)
1157 {
1158         struct pmac_tumbler *mix = chip->mixer_data;
1159
1160         if (mix->anded_reset) {
1161                 DBG("(I) codec anded reset !\n");
1162                 write_audio_gpio(&mix->hp_mute, 0);
1163                 write_audio_gpio(&mix->amp_mute, 0);
1164                 msleep(200);
1165                 write_audio_gpio(&mix->hp_mute, 1);
1166                 write_audio_gpio(&mix->amp_mute, 1);
1167                 msleep(100);
1168                 write_audio_gpio(&mix->hp_mute, 0);
1169                 write_audio_gpio(&mix->amp_mute, 0);
1170                 msleep(100);
1171         } else {
1172                 DBG("(I) codec normal reset !\n");
1173
1174                 write_audio_gpio(&mix->audio_reset, 0);
1175                 msleep(200);
1176                 write_audio_gpio(&mix->audio_reset, 1);
1177                 msleep(100);
1178                 write_audio_gpio(&mix->audio_reset, 0);
1179                 msleep(100);
1180         }
1181 }
1182
1183 #ifdef CONFIG_PM
1184 /* suspend mixer */
1185 static void tumbler_suspend(struct snd_pmac *chip)
1186 {
1187         struct pmac_tumbler *mix = chip->mixer_data;
1188
1189         if (mix->headphone_irq >= 0)
1190                 disable_irq(mix->headphone_irq);
1191         if (mix->lineout_irq >= 0)
1192                 disable_irq(mix->lineout_irq);
1193         mix->save_master_switch[0] = mix->master_switch[0];
1194         mix->save_master_switch[1] = mix->master_switch[1];
1195         mix->save_master_vol[0] = mix->master_vol[0];
1196         mix->save_master_vol[1] = mix->master_vol[1];
1197         mix->master_switch[0] = mix->master_switch[1] = 0;
1198         tumbler_set_master_volume(mix);
1199         if (!mix->anded_reset) {
1200                 write_audio_gpio(&mix->amp_mute, 1);
1201                 write_audio_gpio(&mix->hp_mute, 1);
1202         }
1203         if (chip->model == PMAC_SNAPPER) {
1204                 mix->acs |= 1;
1205                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1206         }
1207         if (mix->anded_reset) {
1208                 write_audio_gpio(&mix->amp_mute, 1);
1209                 write_audio_gpio(&mix->hp_mute, 1);
1210         } else
1211                 write_audio_gpio(&mix->audio_reset, 1);
1212 }
1213
1214 /* resume mixer */
1215 static void tumbler_resume(struct snd_pmac *chip)
1216 {
1217         struct pmac_tumbler *mix = chip->mixer_data;
1218
1219         mix->acs &= ~1;
1220         mix->master_switch[0] = mix->save_master_switch[0];
1221         mix->master_switch[1] = mix->save_master_switch[1];
1222         mix->master_vol[0] = mix->save_master_vol[0];
1223         mix->master_vol[1] = mix->save_master_vol[1];
1224         tumbler_reset_audio(chip);
1225         if (mix->i2c.client && mix->i2c.init_client) {
1226                 if (mix->i2c.init_client(&mix->i2c) < 0)
1227                         printk(KERN_ERR "tumbler_init_client error\n");
1228         } else
1229                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1230         if (chip->model == PMAC_TUMBLER) {
1231                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1232                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1233                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1234                 tumbler_set_drc(mix);
1235         } else {
1236                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1237                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1238                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1239                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1240                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1241                 snapper_set_drc(mix);
1242                 snapper_set_capture_source(mix);
1243         }
1244         tumbler_set_master_volume(mix);
1245         if (chip->update_automute)
1246                 chip->update_automute(chip, 0);
1247         if (mix->headphone_irq >= 0) {
1248                 unsigned char val;
1249
1250                 enable_irq(mix->headphone_irq);
1251                 /* activate headphone status interrupts */
1252                 val = do_gpio_read(&mix->hp_detect);
1253                 do_gpio_write(&mix->hp_detect, val | 0x80);
1254         }
1255         if (mix->lineout_irq >= 0)
1256                 enable_irq(mix->lineout_irq);
1257 }
1258 #endif
1259
1260 /* initialize tumbler */
1261 static int tumbler_init(struct snd_pmac *chip)
1262 {
1263         int irq;
1264         struct pmac_tumbler *mix = chip->mixer_data;
1265
1266         if (tumbler_find_device("audio-hw-reset",
1267                                 "platform-do-hw-reset",
1268                                 &mix->audio_reset, 0) < 0)
1269                 tumbler_find_device("hw-reset",
1270                                     "platform-do-hw-reset",
1271                                     &mix->audio_reset, 1);
1272         if (tumbler_find_device("amp-mute",
1273                                 "platform-do-amp-mute",
1274                                 &mix->amp_mute, 0) < 0)
1275                 tumbler_find_device("amp-mute",
1276                                     "platform-do-amp-mute",
1277                                     &mix->amp_mute, 1);
1278         if (tumbler_find_device("headphone-mute",
1279                                 "platform-do-headphone-mute",
1280                                 &mix->hp_mute, 0) < 0)
1281                 tumbler_find_device("headphone-mute",
1282                                     "platform-do-headphone-mute",
1283                                     &mix->hp_mute, 1);
1284         if (tumbler_find_device("line-output-mute",
1285                                 "platform-do-lineout-mute",
1286                                 &mix->line_mute, 0) < 0)
1287                 tumbler_find_device("line-output-mute",
1288                                    "platform-do-lineout-mute",
1289                                     &mix->line_mute, 1);
1290         irq = tumbler_find_device("headphone-detect",
1291                                   NULL, &mix->hp_detect, 0);
1292         if (irq <= 0)
1293                 irq = tumbler_find_device("headphone-detect",
1294                                           NULL, &mix->hp_detect, 1);
1295         if (irq <= 0)
1296                 irq = tumbler_find_device("keywest-gpio15",
1297                                           NULL, &mix->hp_detect, 1);
1298         mix->headphone_irq = irq;
1299         irq = tumbler_find_device("line-output-detect",
1300                                   NULL, &mix->line_detect, 0);
1301         if (irq <= 0)
1302                 irq = tumbler_find_device("line-output-detect",
1303                                           NULL, &mix->line_detect, 1);
1304         if (IS_G4DA && irq <= 0)
1305                 irq = tumbler_find_device("keywest-gpio16",
1306                                           NULL, &mix->line_detect, 1);
1307         mix->lineout_irq = irq;
1308
1309         tumbler_reset_audio(chip);
1310
1311         return 0;
1312 }
1313
1314 static void tumbler_cleanup(struct snd_pmac *chip)
1315 {
1316         struct pmac_tumbler *mix = chip->mixer_data;
1317         if (! mix)
1318                 return;
1319
1320         if (mix->headphone_irq >= 0)
1321                 free_irq(mix->headphone_irq, chip);
1322         if (mix->lineout_irq >= 0)
1323                 free_irq(mix->lineout_irq, chip);
1324         tumbler_gpio_free(&mix->audio_reset);
1325         tumbler_gpio_free(&mix->amp_mute);
1326         tumbler_gpio_free(&mix->hp_mute);
1327         tumbler_gpio_free(&mix->hp_detect);
1328         snd_pmac_keywest_cleanup(&mix->i2c);
1329         kfree(mix);
1330         chip->mixer_data = NULL;
1331 }
1332
1333 /* exported */
1334 int snd_pmac_tumbler_init(struct snd_pmac *chip)
1335 {
1336         int i, err;
1337         struct pmac_tumbler *mix;
1338         const u32 *paddr;
1339         struct device_node *tas_node, *np;
1340         char *chipname;
1341
1342         request_module("i2c-powermac");
1343
1344         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1345         if (! mix)
1346                 return -ENOMEM;
1347         mix->headphone_irq = -1;
1348
1349         chip->mixer_data = mix;
1350         chip->mixer_free = tumbler_cleanup;
1351         mix->anded_reset = 0;
1352         mix->reset_on_sleep = 1;
1353
1354         for_each_child_of_node(chip->node, np) {
1355                 if (of_node_name_eq(np, "sound")) {
1356                         if (of_get_property(np, "has-anded-reset", NULL))
1357                                 mix->anded_reset = 1;
1358                         if (of_get_property(np, "layout-id", NULL))
1359                                 mix->reset_on_sleep = 0;
1360                         of_node_put(np);
1361                         break;
1362                 }
1363         }
1364         if ((err = tumbler_init(chip)) < 0)
1365                 return err;
1366
1367         /* set up TAS */
1368         tas_node = of_find_node_by_name(NULL, "deq");
1369         if (tas_node == NULL)
1370                 tas_node = of_find_node_by_name(NULL, "codec");
1371         if (tas_node == NULL)
1372                 return -ENODEV;
1373
1374         paddr = of_get_property(tas_node, "i2c-address", NULL);
1375         if (paddr == NULL)
1376                 paddr = of_get_property(tas_node, "reg", NULL);
1377         if (paddr)
1378                 mix->i2c.addr = (*paddr) >> 1;
1379         else
1380                 mix->i2c.addr = TAS_I2C_ADDR;
1381         of_node_put(tas_node);
1382
1383         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1384
1385         if (chip->model == PMAC_TUMBLER) {
1386                 mix->i2c.init_client = tumbler_init_client;
1387                 mix->i2c.name = "TAS3001c";
1388                 chipname = "Tumbler";
1389         } else {
1390                 mix->i2c.init_client = snapper_init_client;
1391                 mix->i2c.name = "TAS3004";
1392                 chipname = "Snapper";
1393         }
1394
1395         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1396                 return err;
1397
1398         /*
1399          * build mixers
1400          */
1401         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1402
1403         if (chip->model == PMAC_TUMBLER) {
1404                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1405                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1406                                 return err;
1407                 }
1408         } else {
1409                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1410                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1411                                 return err;
1412                 }
1413         }
1414         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1415         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1416                 return err;
1417         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1418         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1419                 return err;
1420         if (mix->line_mute.addr != 0) {
1421                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1422                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1423                         return err;
1424         }
1425         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1426         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1427                 return err;
1428
1429         /* set initial DRC range to 60% */
1430         if (chip->model == PMAC_TUMBLER)
1431                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1432         else
1433                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1434         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1435         if (chip->model == PMAC_TUMBLER)
1436                 tumbler_set_drc(mix);
1437         else
1438                 snapper_set_drc(mix);
1439
1440 #ifdef CONFIG_PM
1441         chip->suspend = tumbler_suspend;
1442         chip->resume = tumbler_resume;
1443 #endif
1444
1445         INIT_WORK(&device_change, device_change_handler);
1446         device_change_chip = chip;
1447
1448 #ifdef PMAC_SUPPORT_AUTOMUTE
1449         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1450             && (err = snd_pmac_add_automute(chip)) < 0)
1451                 return err;
1452         chip->detect_headphone = tumbler_detect_headphone;
1453         chip->update_automute = tumbler_update_automute;
1454         tumbler_update_automute(chip, 0); /* update the status only */
1455
1456         /* activate headphone status interrupts */
1457         if (mix->headphone_irq >= 0) {
1458                 unsigned char val;
1459                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1460                                        "Sound Headphone Detection", chip)) < 0)
1461                         return 0;
1462                 /* activate headphone status interrupts */
1463                 val = do_gpio_read(&mix->hp_detect);
1464                 do_gpio_write(&mix->hp_detect, val | 0x80);
1465         }
1466         if (mix->lineout_irq >= 0) {
1467                 unsigned char val;
1468                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1469                                        "Sound Lineout Detection", chip)) < 0)
1470                         return 0;
1471                 /* activate headphone status interrupts */
1472                 val = do_gpio_read(&mix->line_detect);
1473                 do_gpio_write(&mix->line_detect, val | 0x80);
1474         }
1475 #endif
1476
1477         return 0;
1478 }