sound/ppc/tumbler.c

   1 /*
   2  * PMac Tumbler/Snapper lowlevel functions
   3  *
   4  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
   5  *
   6  *   This program is free software; you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License as published by
   8  *   the Free Software Foundation; either version 2 of the License, or
   9  *   (at your option) any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program; if not, write to the Free Software
  18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19  *
  20  *   Rene Rebe <rene.rebe@gmx.net>:
  21  *     * update from shadow registers on wakeup and headphone plug
  22  *     * automatically toggle DRC on headphone plug
  23  *
  24  */
  25
  26
  27 #include <sound/driver.h>
  28 #include <linux/init.h>
  29 #include <linux/delay.h>
  30 #include <linux/i2c.h>
  31 #include <linux/i2c-dev.h>
  32 #include <linux/kmod.h>
  33 #include <linux/slab.h>
  34 #include <linux/interrupt.h>
  35 #include <sound/core.h>
  36 #include <asm/io.h>
  37 #include <asm/irq.h>
  38 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
  39 #include <asm/pmac_feature.h>
  40 #endif
  41 #include "pmac.h"
  42 #include "tumbler_volume.h"
  43
  44 /* i2c address for tumbler */
  45 #define TAS_I2C_ADDR    0x34
  46
  47 /* registers */
  48 #define TAS_REG_MCS     0x01    /* main control */
  49 #define TAS_REG_DRC     0x02
  50 #define TAS_REG_VOL     0x04
  51 #define TAS_REG_TREBLE  0x05
  52 #define TAS_REG_BASS    0x06
  53 #define TAS_REG_INPUT1  0x07
  54 #define TAS_REG_INPUT2  0x08
  55
  56 /* tas3001c */
  57 #define TAS_REG_PCM     TAS_REG_INPUT1
  58
  59 /* tas3004 */
  60 #define TAS_REG_LMIX    TAS_REG_INPUT1
  61 #define TAS_REG_RMIX    TAS_REG_INPUT2
  62 #define TAS_REG_MCS2    0x43            /* main control 2 */
  63 #define TAS_REG_ACS     0x40            /* analog control */
  64
  65 /* mono volumes for tas3001c/tas3004 */
  66 enum {
  67         VOL_IDX_PCM_MONO, /* tas3001c only */
  68         VOL_IDX_BASS, VOL_IDX_TREBLE,
  69         VOL_IDX_LAST_MONO
  70 };
  71
  72 /* stereo volumes for tas3004 */
  73 enum {
  74         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
  75         VOL_IDX_LAST_MIX
  76 };
  77
  78 typedef struct pmac_gpio {
  79 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
  80         unsigned int addr;
  81 #else
  82         void *addr;
  83 #endif
  84         int active_state;
  85 } pmac_gpio_t;
  86
  87 typedef struct pmac_tumbler_t {
  88         pmac_keywest_t i2c;
  89         pmac_gpio_t audio_reset;
  90         pmac_gpio_t amp_mute;
  91         pmac_gpio_t hp_mute;
  92         pmac_gpio_t hp_detect;
  93         int headphone_irq;
  94         unsigned int master_vol[2];
  95         unsigned int master_switch[2];
  96         unsigned int mono_vol[VOL_IDX_LAST_MONO];
  97         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
  98         int drc_range;
  99         int drc_enable;
 100         int capture_source;
 101 } pmac_tumbler_t;
 102
 103
 104 /*
 105  */
 106
 107 static int send_init_client(pmac_keywest_t *i2c, unsigned int *regs)
 108 {
 109         while (*regs > 0) {
 110                 int err, count = 10;
 111                 do {
 112                         err =  snd_pmac_keywest_write_byte(i2c, regs[0], regs[1]);
 113                         if (err >= 0)
 114                                 break;
 115                         mdelay(10);
 116                 } while (count--);
 117                 if (err < 0)
 118                         return -ENXIO;
 119                 regs += 2;
 120         }
 121         return 0;
 122 }
 123
 124
 125 static int tumbler_init_client(pmac_keywest_t *i2c)
 126 {
 127         static unsigned int regs[] = {
 128                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
 129                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
 130                 0, /* terminator */
 131         };
 132         return send_init_client(i2c, regs);
 133 }
 134
 135 static int snapper_init_client(pmac_keywest_t *i2c)
 136 {
 137         static unsigned int regs[] = {
 138                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
 139                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
 140                 /* normal operation, all-pass mode */
 141                 TAS_REG_MCS2, (1<<1),
 142                 /* normal output, no deemphasis, A input, power-up, line-in */
 143                 TAS_REG_ACS, 0,
 144                 0, /* terminator */
 145         };
 146         return send_init_client(i2c, regs);
 147 }
 148
 149 /*
 150  * gpio access
 151  */
 152 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
 153 #define do_gpio_write(gp, val) \
 154         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
 155 #define do_gpio_read(gp) \
 156         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
 157 #define tumbler_gpio_free(gp) /* NOP */
 158 #else
 159 #define do_gpio_write(gp, val)  writeb(val, (gp)->addr)
 160 #define do_gpio_read(gp)        readb((gp)->addr)
 161 static inline void tumbler_gpio_free(pmac_gpio_t *gp)
 162 {
 163         if (gp->addr) {
 164                 iounmap(gp->addr);
 165                 gp->addr = 0;
 166         }
 167 }
 168 #endif /* CONFIG_PPC_HAS_FEATURE_CALLS */
 169
 170 static void write_audio_gpio(pmac_gpio_t *gp, int active)
 171 {
 172         if (! gp->addr)
 173                 return;
 174         active = active ? gp->active_state : !gp->active_state;
 175         do_gpio_write(gp, active ? 0x05 : 0x04);
 176 }
 177
 178 static int read_audio_gpio(pmac_gpio_t *gp)
 179 {
 180         int ret;
 181         if (! gp->addr)
 182                 return 0;
 183         ret = ((do_gpio_read(gp) & 0x02) !=0);
 184         return ret == gp->active_state;
 185 }
 186
 187 /*
 188  * update master volume
 189  */
 190 static int tumbler_set_master_volume(pmac_tumbler_t *mix)
 191 {
 192         unsigned char block[6];
 193         unsigned int left_vol, right_vol;
 194
 195         if (! mix->i2c.client)
 196                 return -ENODEV;
 197
 198         if (! mix->master_switch[0])
 199                 left_vol = 0;
 200         else {
 201                 left_vol = mix->master_vol[0];
 202                 if (left_vol >= ARRAY_SIZE(master_volume_table))
 203                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
 204                 left_vol = master_volume_table[left_vol];
 205         }
 206         if (! mix->master_switch[1])
 207                 right_vol = 0;
 208         else {
 209                 right_vol = mix->master_vol[1];
 210                 if (right_vol >= ARRAY_SIZE(master_volume_table))
 211                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
 212                 right_vol = master_volume_table[right_vol];
 213         }
 214
 215         block[0] = (left_vol >> 16) & 0xff;
 216         block[1] = (left_vol >> 8)  & 0xff;
 217         block[2] = (left_vol >> 0)  & 0xff;
 218
 219         block[3] = (right_vol >> 16) & 0xff;
 220         block[4] = (right_vol >> 8)  & 0xff;
 221         block[5] = (right_vol >> 0)  & 0xff;
 222
 223         if (snd_pmac_keywest_write(&mix->i2c, TAS_REG_VOL, 6, block) < 0) {
 224                 snd_printk("failed to set volume \n");
 225                 return -EINVAL;
 226         }
 227         return 0;
 228 }
 229
 230
 231 /* output volume */
 232 static int tumbler_info_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 233 {
 234         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 235         uinfo->count = 2;
 236         uinfo->value.integer.min = 0;
 237         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
 238         return 0;
 239 }
 240
 241 static int tumbler_get_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 242 {
 243         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 244         pmac_tumbler_t *mix = chip->mixer_data;
 245         snd_assert(mix, return -ENODEV);
 246         ucontrol->value.integer.value[0] = mix->master_vol[0];
 247         ucontrol->value.integer.value[1] = mix->master_vol[1];
 248         return 0;
 249 }
 250
 251 static int tumbler_put_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 252 {
 253         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 254         pmac_tumbler_t *mix = chip->mixer_data;
 255         int change;
 256
 257         snd_assert(mix, return -ENODEV);
 258         change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
 259                 mix->master_vol[1] != ucontrol->value.integer.value[1];
 260         if (change) {
 261                 mix->master_vol[0] = ucontrol->value.integer.value[0];
 262                 mix->master_vol[1] = ucontrol->value.integer.value[1];
 263                 tumbler_set_master_volume(mix);
 264         }
 265         return change;
 266 }
 267
 268 /* output switch */
 269 static int tumbler_get_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 270 {
 271         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 272         pmac_tumbler_t *mix = chip->mixer_data;
 273         snd_assert(mix, return -ENODEV);
 274         ucontrol->value.integer.value[0] = mix->master_switch[0];
 275         ucontrol->value.integer.value[1] = mix->master_switch[1];
 276         return 0;
 277 }
 278
 279 static int tumbler_put_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 280 {
 281         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 282         pmac_tumbler_t *mix = chip->mixer_data;
 283         int change;
 284
 285         snd_assert(mix, return -ENODEV);
 286         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
 287                 mix->master_switch[1] != ucontrol->value.integer.value[1];
 288         if (change) {
 289                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
 290                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
 291                 tumbler_set_master_volume(mix);
 292         }
 293         return change;
 294 }
 295
 296
 297 /*
 298  * TAS3001c dynamic range compression
 299  */
 300
 301 #define TAS3001_DRC_MAX         0x5f
 302
 303 static int tumbler_set_drc(pmac_tumbler_t *mix)
 304 {
 305         unsigned char val[2];
 306
 307         if (! mix->i2c.client)
 308                 return -ENODEV;
 309
 310         if (mix->drc_enable) {
 311                 val[0] = 0xc1; /* enable, 3:1 compression */
 312                 if (mix->drc_range > TAS3001_DRC_MAX)
 313                         val[1] = 0xf0;
 314                 else if (mix->drc_range < 0)
 315                         val[1] = 0x91;
 316                 else
 317                         val[1] = mix->drc_range + 0x91;
 318         } else {
 319                 val[0] = 0;
 320                 val[1] = 0;
 321         }
 322
 323         if (snd_pmac_keywest_write(&mix->i2c, TAS_REG_DRC, 2, val) < 0) {
 324                 snd_printk("failed to set DRC\n");
 325                 return -EINVAL;
 326         }
 327         return 0;
 328 }
 329
 330 /*
 331  * TAS3004
 332  */
 333
 334 #define TAS3004_DRC_MAX         0xef
 335
 336 static int snapper_set_drc(pmac_tumbler_t *mix)
 337 {
 338         unsigned char val[6];
 339
 340         if (! mix->i2c.client)
 341                 return -ENODEV;
 342
 343         if (mix->drc_enable)
 344                 val[0] = 0x50; /* 3:1 above threshold */
 345         else
 346                 val[0] = 0x51; /* disabled */
 347         val[1] = 0x02; /* 1:1 below threshold */
 348         if (mix->drc_range > 0xef)
 349                 val[2] = 0xef;
 350         else if (mix->drc_range < 0)
 351                 val[2] = 0x00;
 352         else
 353                 val[2] = mix->drc_range;
 354         val[3] = 0xb0;
 355         val[4] = 0x60;
 356         val[5] = 0xa0;
 357
 358         if (snd_pmac_keywest_write(&mix->i2c, TAS_REG_DRC, 6, val) < 0) {
 359                 snd_printk("failed to set DRC\n");
 360                 return -EINVAL;
 361         }
 362         return 0;
 363 }
 364
 365 static int tumbler_info_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 366 {
 367         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 368         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 369         uinfo->count = 1;
 370         uinfo->value.integer.min = 0;
 371         uinfo->value.integer.max =
 372                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
 373         return 0;
 374 }
 375
 376 static int tumbler_get_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 377 {
 378         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 379         pmac_tumbler_t *mix;
 380         if (! (mix = chip->mixer_data))
 381                 return -ENODEV;
 382         ucontrol->value.integer.value[0] = mix->drc_range;
 383         return 0;
 384 }
 385
 386 static int tumbler_put_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 387 {
 388         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 389         pmac_tumbler_t *mix;
 390         int change;
 391
 392         if (! (mix = chip->mixer_data))
 393                 return -ENODEV;
 394         change = mix->drc_range != ucontrol->value.integer.value[0];
 395         if (change) {
 396                 mix->drc_range = ucontrol->value.integer.value[0];
 397                 if (chip->model == PMAC_TUMBLER)
 398                         tumbler_set_drc(mix);
 399                 else
 400                         snapper_set_drc(mix);
 401         }
 402         return change;
 403 }
 404
 405 static int tumbler_get_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 406 {
 407         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 408         pmac_tumbler_t *mix;
 409         if (! (mix = chip->mixer_data))
 410                 return -ENODEV;
 411         ucontrol->value.integer.value[0] = mix->drc_enable;
 412         return 0;
 413 }
 414
 415 static int tumbler_put_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 416 {
 417         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 418         pmac_tumbler_t *mix;
 419         int change;
 420
 421         if (! (mix = chip->mixer_data))
 422                 return -ENODEV;
 423         change = mix->drc_enable != ucontrol->value.integer.value[0];
 424         if (change) {
 425                 mix->drc_enable = !!ucontrol->value.integer.value[0];
 426                 if (chip->model == PMAC_TUMBLER)
 427                         tumbler_set_drc(mix);
 428                 else
 429                         snapper_set_drc(mix);
 430         }
 431         return change;
 432 }
 433
 434
 435 /*
 436  * mono volumes
 437  */
 438
 439 struct tumbler_mono_vol {
 440         int index;
 441         int reg;
 442         int bytes;
 443         unsigned int max;
 444         unsigned int *table;
 445 };
 446
 447 static int tumbler_set_mono_volume(pmac_tumbler_t *mix, struct tumbler_mono_vol *info)
 448 {
 449         unsigned char block[4];
 450         unsigned int vol;
 451         int i;
 452
 453         if (! mix->i2c.client)
 454                 return -ENODEV;
 455
 456         vol = mix->mono_vol[info->index];
 457         if (vol >= info->max)
 458                 vol = info->max - 1;
 459         vol = info->table[vol];
 460         for (i = 0; i < info->bytes; i++)
 461                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
 462         if (snd_pmac_keywest_write(&mix->i2c, info->reg, info->bytes, block) < 0) {
 463                 snd_printk("failed to set mono volume %d\n", info->index);
 464                 return -EINVAL;
 465         }
 466         return 0;
 467 }
 468
 469 static int tumbler_info_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 470 {
 471         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 472
 473         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 474         uinfo->count = 1;
 475         uinfo->value.integer.min = 0;
 476         uinfo->value.integer.max = info->max - 1;
 477         return 0;
 478 }
 479
 480 static int tumbler_get_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 481 {
 482         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 483         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 484         pmac_tumbler_t *mix;
 485         if (! (mix = chip->mixer_data))
 486                 return -ENODEV;
 487         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
 488         return 0;
 489 }
 490
 491 static int tumbler_put_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 492 {
 493         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 494         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 495         pmac_tumbler_t *mix;
 496         int change;
 497
 498         if (! (mix = chip->mixer_data))
 499                 return -ENODEV;
 500         change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
 501         if (change) {
 502                 mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
 503                 tumbler_set_mono_volume(mix, info);
 504         }
 505         return change;
 506 }
 507
 508 /* TAS3001c mono volumes */
 509 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
 510         .index = VOL_IDX_PCM_MONO,
 511         .reg = TAS_REG_PCM,
 512         .bytes = 3,
 513         .max = ARRAY_SIZE(mixer_volume_table),
 514         .table = mixer_volume_table,
 515 };
 516
 517 static struct tumbler_mono_vol tumbler_bass_vol_info = {
 518         .index = VOL_IDX_BASS,
 519         .reg = TAS_REG_BASS,
 520         .bytes = 1,
 521         .max = ARRAY_SIZE(bass_volume_table),
 522         .table = bass_volume_table,
 523 };
 524
 525 static struct tumbler_mono_vol tumbler_treble_vol_info = {
 526         .index = VOL_IDX_TREBLE,
 527         .reg = TAS_REG_TREBLE,
 528         .bytes = 1,
 529         .max = ARRAY_SIZE(treble_volume_table),
 530         .table = treble_volume_table,
 531 };
 532
 533 /* TAS3004 mono volumes */
 534 static struct tumbler_mono_vol snapper_bass_vol_info = {
 535         .index = VOL_IDX_BASS,
 536         .reg = TAS_REG_BASS,
 537         .bytes = 1,
 538         .max = ARRAY_SIZE(snapper_bass_volume_table),
 539         .table = snapper_bass_volume_table,
 540 };
 541
 542 static struct tumbler_mono_vol snapper_treble_vol_info = {
 543         .index = VOL_IDX_TREBLE,
 544         .reg = TAS_REG_TREBLE,
 545         .bytes = 1,
 546         .max = ARRAY_SIZE(snapper_treble_volume_table),
 547         .table = snapper_treble_volume_table,
 548 };
 549
 550
 551 #define DEFINE_MONO(xname,type) { \
 552         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 553         .name = xname, \
 554         .info = tumbler_info_mono, \
 555         .get = tumbler_get_mono, \
 556         .put = tumbler_put_mono, \
 557         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
 558 }
 559
 560 #define DEFINE_SNAPPER_MONO(xname,type) { \
 561         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 562         .name = xname, \
 563         .info = tumbler_info_mono, \
 564         .get = tumbler_get_mono, \
 565         .put = tumbler_put_mono, \
 566         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
 567 }
 568
 569
 570 /*
 571  * snapper mixer volumes
 572  */
 573
 574 static int snapper_set_mix_vol1(pmac_tumbler_t *mix, int idx, int ch, int reg)
 575 {
 576         int i, j, vol;
 577         unsigned char block[9];
 578
 579         vol = mix->mix_vol[idx][ch];
 580         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
 581                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
 582                 mix->mix_vol[idx][ch] = vol;
 583         }
 584
 585         for (i = 0; i < 3; i++) {
 586                 vol = mix->mix_vol[i][ch];
 587                 vol = mixer_volume_table[vol];
 588                 for (j = 0; j < 3; j++)
 589                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
 590         }
 591         if (snd_pmac_keywest_write(&mix->i2c, reg, 9, block) < 0) {
 592                 snd_printk("failed to set mono volume %d\n", reg);
 593                 return -EINVAL;
 594         }
 595         return 0;
 596 }
 597
 598 static int snapper_set_mix_vol(pmac_tumbler_t *mix, int idx)
 599 {
 600         if (! mix->i2c.client)
 601                 return -ENODEV;
 602         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 603             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 604                 return -EINVAL;
 605         return 0;
 606 }
 607
 608 static int snapper_info_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 609 {
 610         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 611         uinfo->count = 2;
 612         uinfo->value.integer.min = 0;
 613         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 614         return 0;
 615 }
 616
 617 static int snapper_get_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 618 {
 619         int idx = (int)kcontrol->private_value;
 620         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 621         pmac_tumbler_t *mix;
 622         if (! (mix = chip->mixer_data))
 623                 return -ENODEV;
 624         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 625         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 626         return 0;
 627 }
 628
 629 static int snapper_put_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 630 {
 631         int idx = (int)kcontrol->private_value;
 632         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 633         pmac_tumbler_t *mix;
 634         int change;
 635
 636         if (! (mix = chip->mixer_data))
 637                 return -ENODEV;
 638         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
 639                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
 640         if (change) {
 641                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
 642                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
 643                 snapper_set_mix_vol(mix, idx);
 644         }
 645         return change;
 646 }
 647
 648
 649 /*
 650  * mute switches
 651  */
 652
 653 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP };
 654
 655 static int tumbler_get_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 656 {
 657         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 658         pmac_tumbler_t *mix;
 659         pmac_gpio_t *gp;
 660         if (! (mix = chip->mixer_data))
 661                 return -ENODEV;
 662         gp = (kcontrol->private_value == TUMBLER_MUTE_HP) ? &mix->hp_mute : &mix->amp_mute;
 663         ucontrol->value.integer.value[0] = ! read_audio_gpio(gp);
 664         return 0;
 665 }
 666
 667 static int tumbler_put_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 668 {
 669         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 670         pmac_tumbler_t *mix;
 671         pmac_gpio_t *gp;
 672         int val;
 673 #ifdef PMAC_SUPPORT_AUTOMUTE
 674         if (chip->update_automute && chip->auto_mute)
 675                 return 0; /* don't touch in the auto-mute mode */
 676 #endif
 677         if (! (mix = chip->mixer_data))
 678                 return -ENODEV;
 679         gp = (kcontrol->private_value == TUMBLER_MUTE_HP) ? &mix->hp_mute : &mix->amp_mute;
 680         val = ! read_audio_gpio(gp);
 681         if (val != ucontrol->value.integer.value[0]) {
 682                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 683                 return 1;
 684         }
 685         return 0;
 686 }
 687
 688 static int snapper_set_capture_source(pmac_tumbler_t *mix)
 689 {
 690         if (! mix->i2c.client)
 691                 return -ENODEV;
 692         return snd_pmac_keywest_write_byte(&mix->i2c, TAS_REG_ACS,
 693                                            mix->capture_source ? 2 : 0);
 694 }
 695
 696 static int snapper_info_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 697 {
 698         static char *texts[2] = {
 699                 "Line", "Mic"
 700         };
 701         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 702         uinfo->count = 1;
 703         uinfo->value.enumerated.items = 2;
 704         if (uinfo->value.enumerated.item > 1)
 705                 uinfo->value.enumerated.item = 1;
 706         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 707         return 0;
 708 }
 709
 710 static int snapper_get_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 711 {
 712         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 713         pmac_tumbler_t *mix = chip->mixer_data;
 714
 715         snd_assert(mix, return -ENODEV);
 716         ucontrol->value.integer.value[0] = mix->capture_source;
 717         return 0;
 718 }
 719
 720 static int snapper_put_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 721 {
 722         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 723         pmac_tumbler_t *mix = chip->mixer_data;
 724         int change;
 725
 726         snd_assert(mix, return -ENODEV);
 727         change = ucontrol->value.integer.value[0] != mix->capture_source;
 728         if (change) {
 729                 mix->capture_source = !!ucontrol->value.integer.value[0];
 730                 snapper_set_capture_source(mix);
 731         }
 732         return change;
 733 }
 734
 735 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 736         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 737         .name = xname, \
 738         .info = snapper_info_mix, \
 739         .get = snapper_get_mix, \
 740         .put = snapper_put_mix, \
 741         .index = idx,\
 742         .private_value = ofs, \
 743 }
 744
 745
 746 /*
 747  */
 748 static snd_kcontrol_new_t tumbler_mixers[] __initdata = {
 749         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 750           .name = "Master Playback Volume",
 751           .info = tumbler_info_master_volume,
 752           .get = tumbler_get_master_volume,
 753           .put = tumbler_put_master_volume
 754         },
 755         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 756           .name = "Master Playback Switch",
 757           .info = snd_pmac_boolean_stereo_info,
 758           .get = tumbler_get_master_switch,
 759           .put = tumbler_put_master_switch
 760         },
 761         DEFINE_MONO("Tone Control - Bass", bass),
 762         DEFINE_MONO("Tone Control - Treble", treble),
 763         DEFINE_MONO("PCM Playback Volume", pcm),
 764         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 765           .name = "DRC Range",
 766           .info = tumbler_info_drc_value,
 767           .get = tumbler_get_drc_value,
 768           .put = tumbler_put_drc_value
 769         },
 770 };
 771
 772 static snd_kcontrol_new_t snapper_mixers[] __initdata = {
 773         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 774           .name = "Master Playback Volume",
 775           .info = tumbler_info_master_volume,
 776           .get = tumbler_get_master_volume,
 777           .put = tumbler_put_master_volume
 778         },
 779         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 780           .name = "Master Playback Switch",
 781           .info = snd_pmac_boolean_stereo_info,
 782           .get = tumbler_get_master_switch,
 783           .put = tumbler_put_master_switch
 784         },
 785         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 786         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
 787         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 788         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 789         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 790         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 791           .name = "DRC Range",
 792           .info = tumbler_info_drc_value,
 793           .get = tumbler_get_drc_value,
 794           .put = tumbler_put_drc_value
 795         },
 796         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 797           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 798           .info = snapper_info_capture_source,
 799           .get = snapper_get_capture_source,
 800           .put = snapper_put_capture_source
 801         },
 802 };
 803
 804 static snd_kcontrol_new_t tumbler_hp_sw __initdata = {
 805         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 806         .name = "Headphone Playback Switch",
 807         .info = snd_pmac_boolean_mono_info,
 808         .get = tumbler_get_mute_switch,
 809         .put = tumbler_put_mute_switch,
 810         .private_value = TUMBLER_MUTE_HP,
 811 };
 812 static snd_kcontrol_new_t tumbler_speaker_sw __initdata = {
 813         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 814         .name = "PC Speaker Playback Switch",
 815         .info = snd_pmac_boolean_mono_info,
 816         .get = tumbler_get_mute_switch,
 817         .put = tumbler_put_mute_switch,
 818         .private_value = TUMBLER_MUTE_AMP,
 819 };
 820 static snd_kcontrol_new_t tumbler_drc_sw __initdata = {
 821         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 822         .name = "DRC Switch",
 823         .info = snd_pmac_boolean_mono_info,
 824         .get = tumbler_get_drc_switch,
 825         .put = tumbler_put_drc_switch
 826 };
 827
 828
 829 #ifdef PMAC_SUPPORT_AUTOMUTE
 830 /*
 831  * auto-mute stuffs
 832  */
 833 static int tumbler_detect_headphone(pmac_t *chip)
 834 {
 835         pmac_tumbler_t *mix = chip->mixer_data;
 836         return read_audio_gpio(&mix->hp_detect);
 837 }
 838
 839 static void check_mute(pmac_t *chip, pmac_gpio_t *gp, int val, int do_notify, snd_kcontrol_t *sw)
 840 {
 841         //pmac_tumbler_t *mix = chip->mixer_data;
 842         if (val != read_audio_gpio(gp)) {
 843                 write_audio_gpio(gp, val);
 844                 if (do_notify)
 845                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &sw->id);
 846         }
 847 }
 848
 849 static struct work_struct device_change;
 850
 851 static void
 852 device_change_handler(void *self)
 853 {
 854         pmac_t *chip = (pmac_t*) self;
 855         pmac_tumbler_t *mix;
 856
 857         if (!chip)
 858                 return;
 859
 860         mix = chip->mixer_data;
 861
 862         /* first set the DRC so the speaker do not explode -ReneR */
 863         if (chip->model == PMAC_TUMBLER)
 864                 tumbler_set_drc(mix);
 865         else
 866                 snapper_set_drc(mix);
 867
 868         /* reset the master volume so the correct amplification is applied */
 869         tumbler_set_master_volume(mix);
 870 }
 871
 872 static void tumbler_update_automute(pmac_t *chip, int do_notify)
 873 {
 874         if (chip->auto_mute) {
 875                 pmac_tumbler_t *mix = chip->mixer_data;
 876                 snd_assert(mix, return);
 877                 if (tumbler_detect_headphone(chip)) {
 878                         /* mute speaker */
 879                         check_mute(chip, &mix->amp_mute, 1, do_notify, chip->speaker_sw_ctl);
 880                         check_mute(chip, &mix->hp_mute, 0, do_notify, chip->master_sw_ctl);
 881                         mix->drc_enable = 0;
 882
 883                 } else {
 884                         /* unmute speaker */
 885                         check_mute(chip, &mix->amp_mute, 0, do_notify, chip->speaker_sw_ctl);
 886                         check_mute(chip, &mix->hp_mute, 1, do_notify, chip->master_sw_ctl);
 887                         mix->drc_enable = 1;
 888                 }
 889                 if (do_notify) {
 890                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 891                                        &chip->hp_detect_ctl->id);
 892                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 893                                        &chip->drc_sw_ctl->id);
 894                 }
 895
 896                 /* finally we need to schedule an update of the mixer values
 897                    (master and DRC are enough for now) -ReneR */
 898                 schedule_work(&device_change);
 899
 900         }
 901 }
 902 #endif /* PMAC_SUPPORT_AUTOMUTE */
 903
 904
 905 /* interrupt - headphone plug changed */
 906 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
 907 {
 908         pmac_t *chip = devid;
 909         if (chip->update_automute && chip->initialized) {
 910                 chip->update_automute(chip, 1);
 911                 return IRQ_HANDLED;
 912         }
 913         return IRQ_NONE;
 914 }
 915
 916 /* look for audio-gpio device */
 917 static struct device_node *find_audio_device(const char *name)
 918 {
 919         struct device_node *np;
 920
 921         if (! (np = find_devices("gpio")))
 922                 return NULL;
 923
 924         for (np = np->child; np; np = np->sibling) {
 925                 char *property = get_property(np, "audio-gpio", NULL);
 926                 if (property && strcmp(property, name) == 0)
 927                         return np;
 928         }
 929         return NULL;
 930 }
 931
 932 /* look for audio-gpio device */
 933 static struct device_node *find_compatible_audio_device(const char *name)
 934 {
 935         struct device_node *np;
 936
 937         if (! (np = find_devices("gpio")))
 938                 return NULL;
 939
 940         for (np = np->child; np; np = np->sibling) {
 941                 if (device_is_compatible(np, name))
 942                         return np;
 943         }
 944         return NULL;
 945 }
 946
 947 /* find an audio device and get its address */
 948 static unsigned long tumbler_find_device(const char *device, pmac_gpio_t *gp, int is_compatible)
 949 {
 950         struct device_node *node;
 951         u32 *base;
 952
 953         if (is_compatible)
 954                 node = find_compatible_audio_device(device);
 955         else
 956                 node = find_audio_device(device);
 957         if (! node) {
 958                 snd_printdd("cannot find device %s\n", device);
 959                 return -ENODEV;
 960         }
 961
 962         base = (u32 *)get_property(node, "AAPL,address", NULL);
 963         if (! base) {
 964                 snd_printd("cannot find address for device %s\n", device);
 965                 return -ENODEV;
 966         }
 967
 968 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
 969         gp->addr = (*base) & 0x0000ffff;
 970 #else
 971         gp->addr = (void*)ioremap((unsigned long)(*base), 1);
 972 #endif
 973         base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
 974         if (base)
 975                 gp->active_state = *base;
 976         else
 977                 gp->active_state = 1;
 978
 979
 980         return (node->n_intrs > 0) ? node->intrs[0].line : 0;
 981 }
 982
 983 /* reset audio */
 984 static void tumbler_reset_audio(pmac_t *chip)
 985 {
 986         pmac_tumbler_t *mix = chip->mixer_data;
 987
 988         write_audio_gpio(&mix->audio_reset, 0);
 989         big_mdelay(200);
 990         write_audio_gpio(&mix->audio_reset, 1);
 991         big_mdelay(100);
 992         write_audio_gpio(&mix->audio_reset, 0);
 993         big_mdelay(100);
 994 }
 995
 996 #ifdef CONFIG_PMAC_PBOOK
 997 /* resume mixer */
 998 static void tumbler_resume(pmac_t *chip)
 999 {
1000         pmac_tumbler_t *mix = chip->mixer_data;
1001
1002         snd_assert(mix, return);
1003
1004         tumbler_reset_audio(chip);
1005         if (mix->i2c.client && mix->i2c.init_client) {
1006                 if (mix->i2c.init_client(&mix->i2c) < 0)
1007                         printk(KERN_ERR "tumbler_init_client error\n");
1008         } else
1009                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1010         if (chip->model == PMAC_TUMBLER) {
1011                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1012                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1013                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1014                 tumbler_set_drc(mix);
1015         } else {
1016                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1017                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1018                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1019                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1020                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1021                 snapper_set_drc(mix);
1022                 snapper_set_capture_source(mix);
1023         }
1024         tumbler_set_master_volume(mix);
1025         if (chip->update_automute)
1026                 chip->update_automute(chip, 0);
1027 }
1028 #endif
1029
1030 /* initialize tumbler */
1031 static int __init tumbler_init(pmac_t *chip)
1032 {
1033         int irq, err;
1034         pmac_tumbler_t *mix = chip->mixer_data;
1035         snd_assert(mix, return -EINVAL);
1036
1037         tumbler_find_device("audio-hw-reset", &mix->audio_reset, 0);
1038         tumbler_find_device("amp-mute", &mix->amp_mute, 0);
1039         tumbler_find_device("headphone-mute", &mix->hp_mute, 0);
1040         irq = tumbler_find_device("headphone-detect", &mix->hp_detect, 0);
1041         if (irq < 0)
1042                 irq = tumbler_find_device("keywest-gpio15", &mix->hp_detect, 1);
1043
1044         tumbler_reset_audio(chip);
1045
1046         /* activate headphone status interrupts */
1047         if (irq >= 0) {
1048                 unsigned char val;
1049                 if ((err = request_irq(irq, headphone_intr, 0,
1050                                        "Tumbler Headphone Detection", chip)) < 0)
1051                         return err;
1052                 /* activate headphone status interrupts */
1053                 val = do_gpio_read(&mix->hp_detect);
1054                 do_gpio_write(&mix->hp_detect, val | 0x80);
1055         }
1056         mix->headphone_irq = irq;
1057
1058         return 0;
1059 }
1060
1061 static void tumbler_cleanup(pmac_t *chip)
1062 {
1063         pmac_tumbler_t *mix = chip->mixer_data;
1064         if (! mix)
1065                 return;
1066
1067         if (mix->headphone_irq >= 0)
1068                 free_irq(mix->headphone_irq, chip);
1069         tumbler_gpio_free(&mix->audio_reset);
1070         tumbler_gpio_free(&mix->amp_mute);
1071         tumbler_gpio_free(&mix->hp_mute);
1072         tumbler_gpio_free(&mix->hp_detect);
1073         snd_pmac_keywest_cleanup(&mix->i2c);
1074         kfree(mix);
1075         chip->mixer_data = NULL;
1076 }
1077
1078 /* exported */
1079 int __init snd_pmac_tumbler_init(pmac_t *chip)
1080 {
1081         int i, err;
1082         pmac_tumbler_t *mix;
1083         u32 *paddr;
1084         struct device_node *tas_node;
1085         char *chipname;
1086
1087 #ifdef CONFIG_KMOD
1088         if (current->fs->root)
1089                 request_module("i2c-keywest");
1090 #endif /* CONFIG_KMOD */
1091
1092         mix = kmalloc(sizeof(*mix), GFP_KERNEL);
1093         if (! mix)
1094                 return -ENOMEM;
1095         memset(mix, 0, sizeof(*mix));
1096         mix->headphone_irq = -1;
1097
1098         chip->mixer_data = mix;
1099         chip->mixer_free = tumbler_cleanup;
1100
1101         if ((err = tumbler_init(chip)) < 0)
1102                 return err;
1103
1104         /* set up TAS */
1105         tas_node = find_devices("deq");
1106         if (tas_node == NULL)
1107                 return -ENODEV;
1108
1109         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1110         if (paddr)
1111                 mix->i2c.addr = (*paddr) >> 1;
1112         else
1113                 mix->i2c.addr = TAS_I2C_ADDR;
1114
1115         if (chip->model == PMAC_TUMBLER) {
1116                 mix->i2c.init_client = tumbler_init_client;
1117                 mix->i2c.name = "TAS3001c";
1118                 chipname = "Tumbler";
1119         } else {
1120                 mix->i2c.init_client = snapper_init_client;
1121                 mix->i2c.name = "TAS3004";
1122                 chipname = "Snapper";
1123         }
1124
1125         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1126                 return err;
1127
1128         /*
1129          * build mixers
1130          */
1131         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1132
1133         if (chip->model == PMAC_TUMBLER) {
1134                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1135                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1136                                 return err;
1137                 }
1138         } else {
1139                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1140                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1141                                 return err;
1142                 }
1143         }
1144         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1145         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1146                 return err;
1147         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1148         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1149                 return err;
1150         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1151         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1152                 return err;
1153
1154
1155 #ifdef CONFIG_PMAC_PBOOK
1156         chip->resume = tumbler_resume;
1157 #endif
1158
1159         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1160
1161 #ifdef PMAC_SUPPORT_AUTOMUTE
1162         if (mix->headphone_irq >=0 && (err = snd_pmac_add_automute(chip)) < 0)
1163                 return err;
1164         chip->detect_headphone = tumbler_detect_headphone;
1165         chip->update_automute = tumbler_update_automute;
1166         tumbler_update_automute(chip, 0); /* update the status only */
1167 #endif
1168
1169         return 0;
1170 }