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 __iomem *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 = i2c_smbus_write_byte_data(i2c->client,
 113                                                         regs[0], regs[1]);
 114                         if (err >= 0)
 115                                 break;
 116                         mdelay(10);
 117                 } while (count--);
 118                 if (err < 0)
 119                         return -ENXIO;
 120                 regs += 2;
 121         }
 122         return 0;
 123 }
 124
 125
 126 static int tumbler_init_client(pmac_keywest_t *i2c)
 127 {
 128         static unsigned int regs[] = {
 129                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
 130                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
 131                 0, /* terminator */
 132         };
 133         return send_init_client(i2c, regs);
 134 }
 135
 136 static int snapper_init_client(pmac_keywest_t *i2c)
 137 {
 138         static unsigned int regs[] = {
 139                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
 140                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
 141                 /* normal operation, all-pass mode */
 142                 TAS_REG_MCS2, (1<<1),
 143                 /* normal output, no deemphasis, A input, power-up, line-in */
 144                 TAS_REG_ACS, 0,
 145                 0, /* terminator */
 146         };
 147         return send_init_client(i2c, regs);
 148 }
 149
 150 /*
 151  * gpio access
 152  */
 153 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
 154 #define do_gpio_write(gp, val) \
 155         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
 156 #define do_gpio_read(gp) \
 157         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
 158 #define tumbler_gpio_free(gp) /* NOP */
 159 #else
 160 #define do_gpio_write(gp, val)  writeb(val, (gp)->addr)
 161 #define do_gpio_read(gp)        readb((gp)->addr)
 162 static inline void tumbler_gpio_free(pmac_gpio_t *gp)
 163 {
 164         if (gp->addr) {
 165                 iounmap(gp->addr);
 166                 gp->addr = NULL;
 167         }
 168 }
 169 #endif /* CONFIG_PPC_HAS_FEATURE_CALLS */
 170
 171 static void write_audio_gpio(pmac_gpio_t *gp, int active)
 172 {
 173         if (! gp->addr)
 174                 return;
 175         active = active ? gp->active_state : !gp->active_state;
 176         do_gpio_write(gp, active ? 0x05 : 0x04);
 177 }
 178
 179 static int read_audio_gpio(pmac_gpio_t *gp)
 180 {
 181         int ret;
 182         if (! gp->addr)
 183                 return 0;
 184         ret = ((do_gpio_read(gp) & 0x02) !=0);
 185         return ret == gp->active_state;
 186 }
 187
 188 /*
 189  * update master volume
 190  */
 191 static int tumbler_set_master_volume(pmac_tumbler_t *mix)
 192 {
 193         unsigned char block[6];
 194         unsigned int left_vol, right_vol;
 195
 196         if (! mix->i2c.client)
 197                 return -ENODEV;
 198
 199         if (! mix->master_switch[0])
 200                 left_vol = 0;
 201         else {
 202                 left_vol = mix->master_vol[0];
 203                 if (left_vol >= ARRAY_SIZE(master_volume_table))
 204                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
 205                 left_vol = master_volume_table[left_vol];
 206         }
 207         if (! mix->master_switch[1])
 208                 right_vol = 0;
 209         else {
 210                 right_vol = mix->master_vol[1];
 211                 if (right_vol >= ARRAY_SIZE(master_volume_table))
 212                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
 213                 right_vol = master_volume_table[right_vol];
 214         }
 215
 216         block[0] = (left_vol >> 16) & 0xff;
 217         block[1] = (left_vol >> 8)  & 0xff;
 218         block[2] = (left_vol >> 0)  & 0xff;
 219
 220         block[3] = (right_vol >> 16) & 0xff;
 221         block[4] = (right_vol >> 8)  & 0xff;
 222         block[5] = (right_vol >> 0)  & 0xff;
 223
 224         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_VOL,
 225                                        6, block) < 0) {
 226                 snd_printk("failed to set volume \n");
 227                 return -EINVAL;
 228         }
 229         return 0;
 230 }
 231
 232
 233 /* output volume */
 234 static int tumbler_info_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 235 {
 236         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 237         uinfo->count = 2;
 238         uinfo->value.integer.min = 0;
 239         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
 240         return 0;
 241 }
 242
 243 static int tumbler_get_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 244 {
 245         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 246         pmac_tumbler_t *mix = chip->mixer_data;
 247         snd_assert(mix, return -ENODEV);
 248         ucontrol->value.integer.value[0] = mix->master_vol[0];
 249         ucontrol->value.integer.value[1] = mix->master_vol[1];
 250         return 0;
 251 }
 252
 253 static int tumbler_put_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 254 {
 255         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 256         pmac_tumbler_t *mix = chip->mixer_data;
 257         int change;
 258
 259         snd_assert(mix, return -ENODEV);
 260         change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
 261                 mix->master_vol[1] != ucontrol->value.integer.value[1];
 262         if (change) {
 263                 mix->master_vol[0] = ucontrol->value.integer.value[0];
 264                 mix->master_vol[1] = ucontrol->value.integer.value[1];
 265                 tumbler_set_master_volume(mix);
 266         }
 267         return change;
 268 }
 269
 270 /* output switch */
 271 static int tumbler_get_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 272 {
 273         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 274         pmac_tumbler_t *mix = chip->mixer_data;
 275         snd_assert(mix, return -ENODEV);
 276         ucontrol->value.integer.value[0] = mix->master_switch[0];
 277         ucontrol->value.integer.value[1] = mix->master_switch[1];
 278         return 0;
 279 }
 280
 281 static int tumbler_put_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 282 {
 283         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 284         pmac_tumbler_t *mix = chip->mixer_data;
 285         int change;
 286
 287         snd_assert(mix, return -ENODEV);
 288         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
 289                 mix->master_switch[1] != ucontrol->value.integer.value[1];
 290         if (change) {
 291                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
 292                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
 293                 tumbler_set_master_volume(mix);
 294         }
 295         return change;
 296 }
 297
 298
 299 /*
 300  * TAS3001c dynamic range compression
 301  */
 302
 303 #define TAS3001_DRC_MAX         0x5f
 304
 305 static int tumbler_set_drc(pmac_tumbler_t *mix)
 306 {
 307         unsigned char val[2];
 308
 309         if (! mix->i2c.client)
 310                 return -ENODEV;
 311
 312         if (mix->drc_enable) {
 313                 val[0] = 0xc1; /* enable, 3:1 compression */
 314                 if (mix->drc_range > TAS3001_DRC_MAX)
 315                         val[1] = 0xf0;
 316                 else if (mix->drc_range < 0)
 317                         val[1] = 0x91;
 318                 else
 319                         val[1] = mix->drc_range + 0x91;
 320         } else {
 321                 val[0] = 0;
 322                 val[1] = 0;
 323         }
 324
 325         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
 326                                        2, val) < 0) {
 327                 snd_printk("failed to set DRC\n");
 328                 return -EINVAL;
 329         }
 330         return 0;
 331 }
 332
 333 /*
 334  * TAS3004
 335  */
 336
 337 #define TAS3004_DRC_MAX         0xef
 338
 339 static int snapper_set_drc(pmac_tumbler_t *mix)
 340 {
 341         unsigned char val[6];
 342
 343         if (! mix->i2c.client)
 344                 return -ENODEV;
 345
 346         if (mix->drc_enable)
 347                 val[0] = 0x50; /* 3:1 above threshold */
 348         else
 349                 val[0] = 0x51; /* disabled */
 350         val[1] = 0x02; /* 1:1 below threshold */
 351         if (mix->drc_range > 0xef)
 352                 val[2] = 0xef;
 353         else if (mix->drc_range < 0)
 354                 val[2] = 0x00;
 355         else
 356                 val[2] = mix->drc_range;
 357         val[3] = 0xb0;
 358         val[4] = 0x60;
 359         val[5] = 0xa0;
 360
 361         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
 362                                        6, val) < 0) {
 363                 snd_printk("failed to set DRC\n");
 364                 return -EINVAL;
 365         }
 366         return 0;
 367 }
 368
 369 static int tumbler_info_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 370 {
 371         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 372         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 373         uinfo->count = 1;
 374         uinfo->value.integer.min = 0;
 375         uinfo->value.integer.max =
 376                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
 377         return 0;
 378 }
 379
 380 static int tumbler_get_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 381 {
 382         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 383         pmac_tumbler_t *mix;
 384         if (! (mix = chip->mixer_data))
 385                 return -ENODEV;
 386         ucontrol->value.integer.value[0] = mix->drc_range;
 387         return 0;
 388 }
 389
 390 static int tumbler_put_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 391 {
 392         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 393         pmac_tumbler_t *mix;
 394         int change;
 395
 396         if (! (mix = chip->mixer_data))
 397                 return -ENODEV;
 398         change = mix->drc_range != ucontrol->value.integer.value[0];
 399         if (change) {
 400                 mix->drc_range = ucontrol->value.integer.value[0];
 401                 if (chip->model == PMAC_TUMBLER)
 402                         tumbler_set_drc(mix);
 403                 else
 404                         snapper_set_drc(mix);
 405         }
 406         return change;
 407 }
 408
 409 static int tumbler_get_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 410 {
 411         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 412         pmac_tumbler_t *mix;
 413         if (! (mix = chip->mixer_data))
 414                 return -ENODEV;
 415         ucontrol->value.integer.value[0] = mix->drc_enable;
 416         return 0;
 417 }
 418
 419 static int tumbler_put_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 420 {
 421         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 422         pmac_tumbler_t *mix;
 423         int change;
 424
 425         if (! (mix = chip->mixer_data))
 426                 return -ENODEV;
 427         change = mix->drc_enable != ucontrol->value.integer.value[0];
 428         if (change) {
 429                 mix->drc_enable = !!ucontrol->value.integer.value[0];
 430                 if (chip->model == PMAC_TUMBLER)
 431                         tumbler_set_drc(mix);
 432                 else
 433                         snapper_set_drc(mix);
 434         }
 435         return change;
 436 }
 437
 438
 439 /*
 440  * mono volumes
 441  */
 442
 443 struct tumbler_mono_vol {
 444         int index;
 445         int reg;
 446         int bytes;
 447         unsigned int max;
 448         unsigned int *table;
 449 };
 450
 451 static int tumbler_set_mono_volume(pmac_tumbler_t *mix, struct tumbler_mono_vol *info)
 452 {
 453         unsigned char block[4];
 454         unsigned int vol;
 455         int i;
 456
 457         if (! mix->i2c.client)
 458                 return -ENODEV;
 459
 460         vol = mix->mono_vol[info->index];
 461         if (vol >= info->max)
 462                 vol = info->max - 1;
 463         vol = info->table[vol];
 464         for (i = 0; i < info->bytes; i++)
 465                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
 466         if (i2c_smbus_write_block_data(mix->i2c.client, info->reg,
 467                                        info->bytes, block) < 0) {
 468                 snd_printk("failed to set mono volume %d\n", info->index);
 469                 return -EINVAL;
 470         }
 471         return 0;
 472 }
 473
 474 static int tumbler_info_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 475 {
 476         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 477
 478         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 479         uinfo->count = 1;
 480         uinfo->value.integer.min = 0;
 481         uinfo->value.integer.max = info->max - 1;
 482         return 0;
 483 }
 484
 485 static int tumbler_get_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 486 {
 487         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 488         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 489         pmac_tumbler_t *mix;
 490         if (! (mix = chip->mixer_data))
 491                 return -ENODEV;
 492         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
 493         return 0;
 494 }
 495
 496 static int tumbler_put_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 497 {
 498         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
 499         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 500         pmac_tumbler_t *mix;
 501         int change;
 502
 503         if (! (mix = chip->mixer_data))
 504                 return -ENODEV;
 505         change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
 506         if (change) {
 507                 mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
 508                 tumbler_set_mono_volume(mix, info);
 509         }
 510         return change;
 511 }
 512
 513 /* TAS3001c mono volumes */
 514 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
 515         .index = VOL_IDX_PCM_MONO,
 516         .reg = TAS_REG_PCM,
 517         .bytes = 3,
 518         .max = ARRAY_SIZE(mixer_volume_table),
 519         .table = mixer_volume_table,
 520 };
 521
 522 static struct tumbler_mono_vol tumbler_bass_vol_info = {
 523         .index = VOL_IDX_BASS,
 524         .reg = TAS_REG_BASS,
 525         .bytes = 1,
 526         .max = ARRAY_SIZE(bass_volume_table),
 527         .table = bass_volume_table,
 528 };
 529
 530 static struct tumbler_mono_vol tumbler_treble_vol_info = {
 531         .index = VOL_IDX_TREBLE,
 532         .reg = TAS_REG_TREBLE,
 533         .bytes = 1,
 534         .max = ARRAY_SIZE(treble_volume_table),
 535         .table = treble_volume_table,
 536 };
 537
 538 /* TAS3004 mono volumes */
 539 static struct tumbler_mono_vol snapper_bass_vol_info = {
 540         .index = VOL_IDX_BASS,
 541         .reg = TAS_REG_BASS,
 542         .bytes = 1,
 543         .max = ARRAY_SIZE(snapper_bass_volume_table),
 544         .table = snapper_bass_volume_table,
 545 };
 546
 547 static struct tumbler_mono_vol snapper_treble_vol_info = {
 548         .index = VOL_IDX_TREBLE,
 549         .reg = TAS_REG_TREBLE,
 550         .bytes = 1,
 551         .max = ARRAY_SIZE(snapper_treble_volume_table),
 552         .table = snapper_treble_volume_table,
 553 };
 554
 555
 556 #define DEFINE_MONO(xname,type) { \
 557         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 558         .name = xname, \
 559         .info = tumbler_info_mono, \
 560         .get = tumbler_get_mono, \
 561         .put = tumbler_put_mono, \
 562         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
 563 }
 564
 565 #define DEFINE_SNAPPER_MONO(xname,type) { \
 566         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 567         .name = xname, \
 568         .info = tumbler_info_mono, \
 569         .get = tumbler_get_mono, \
 570         .put = tumbler_put_mono, \
 571         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
 572 }
 573
 574
 575 /*
 576  * snapper mixer volumes
 577  */
 578
 579 static int snapper_set_mix_vol1(pmac_tumbler_t *mix, int idx, int ch, int reg)
 580 {
 581         int i, j, vol;
 582         unsigned char block[9];
 583
 584         vol = mix->mix_vol[idx][ch];
 585         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
 586                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
 587                 mix->mix_vol[idx][ch] = vol;
 588         }
 589
 590         for (i = 0; i < 3; i++) {
 591                 vol = mix->mix_vol[i][ch];
 592                 vol = mixer_volume_table[vol];
 593                 for (j = 0; j < 3; j++)
 594                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
 595         }
 596         if (i2c_smbus_write_block_data(mix->i2c.client, reg, 9, block) < 0) {
 597                 snd_printk("failed to set mono volume %d\n", reg);
 598                 return -EINVAL;
 599         }
 600         return 0;
 601 }
 602
 603 static int snapper_set_mix_vol(pmac_tumbler_t *mix, int idx)
 604 {
 605         if (! mix->i2c.client)
 606                 return -ENODEV;
 607         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
 608             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
 609                 return -EINVAL;
 610         return 0;
 611 }
 612
 613 static int snapper_info_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 614 {
 615         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 616         uinfo->count = 2;
 617         uinfo->value.integer.min = 0;
 618         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
 619         return 0;
 620 }
 621
 622 static int snapper_get_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 623 {
 624         int idx = (int)kcontrol->private_value;
 625         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 626         pmac_tumbler_t *mix;
 627         if (! (mix = chip->mixer_data))
 628                 return -ENODEV;
 629         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
 630         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
 631         return 0;
 632 }
 633
 634 static int snapper_put_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 635 {
 636         int idx = (int)kcontrol->private_value;
 637         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 638         pmac_tumbler_t *mix;
 639         int change;
 640
 641         if (! (mix = chip->mixer_data))
 642                 return -ENODEV;
 643         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
 644                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
 645         if (change) {
 646                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
 647                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
 648                 snapper_set_mix_vol(mix, idx);
 649         }
 650         return change;
 651 }
 652
 653
 654 /*
 655  * mute switches
 656  */
 657
 658 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP };
 659
 660 static int tumbler_get_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 661 {
 662         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 663         pmac_tumbler_t *mix;
 664         pmac_gpio_t *gp;
 665         if (! (mix = chip->mixer_data))
 666                 return -ENODEV;
 667         gp = (kcontrol->private_value == TUMBLER_MUTE_HP) ? &mix->hp_mute : &mix->amp_mute;
 668         ucontrol->value.integer.value[0] = ! read_audio_gpio(gp);
 669         return 0;
 670 }
 671
 672 static int tumbler_put_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 673 {
 674         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 675         pmac_tumbler_t *mix;
 676         pmac_gpio_t *gp;
 677         int val;
 678 #ifdef PMAC_SUPPORT_AUTOMUTE
 679         if (chip->update_automute && chip->auto_mute)
 680                 return 0; /* don't touch in the auto-mute mode */
 681 #endif
 682         if (! (mix = chip->mixer_data))
 683                 return -ENODEV;
 684         gp = (kcontrol->private_value == TUMBLER_MUTE_HP) ? &mix->hp_mute : &mix->amp_mute;
 685         val = ! read_audio_gpio(gp);
 686         if (val != ucontrol->value.integer.value[0]) {
 687                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
 688                 return 1;
 689         }
 690         return 0;
 691 }
 692
 693 static int snapper_set_capture_source(pmac_tumbler_t *mix)
 694 {
 695         if (! mix->i2c.client)
 696                 return -ENODEV;
 697         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS,
 698                                          mix->capture_source ? 2 : 0);
 699 }
 700
 701 static int snapper_info_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 702 {
 703         static char *texts[2] = {
 704                 "Line", "Mic"
 705         };
 706         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 707         uinfo->count = 1;
 708         uinfo->value.enumerated.items = 2;
 709         if (uinfo->value.enumerated.item > 1)
 710                 uinfo->value.enumerated.item = 1;
 711         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 712         return 0;
 713 }
 714
 715 static int snapper_get_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 716 {
 717         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 718         pmac_tumbler_t *mix = chip->mixer_data;
 719
 720         snd_assert(mix, return -ENODEV);
 721         ucontrol->value.integer.value[0] = mix->capture_source;
 722         return 0;
 723 }
 724
 725 static int snapper_put_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 726 {
 727         pmac_t *chip = snd_kcontrol_chip(kcontrol);
 728         pmac_tumbler_t *mix = chip->mixer_data;
 729         int change;
 730
 731         snd_assert(mix, return -ENODEV);
 732         change = ucontrol->value.integer.value[0] != mix->capture_source;
 733         if (change) {
 734                 mix->capture_source = !!ucontrol->value.integer.value[0];
 735                 snapper_set_capture_source(mix);
 736         }
 737         return change;
 738 }
 739
 740 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
 741         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
 742         .name = xname, \
 743         .info = snapper_info_mix, \
 744         .get = snapper_get_mix, \
 745         .put = snapper_put_mix, \
 746         .index = idx,\
 747         .private_value = ofs, \
 748 }
 749
 750
 751 /*
 752  */
 753 static snd_kcontrol_new_t tumbler_mixers[] __initdata = {
 754         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 755           .name = "Master Playback Volume",
 756           .info = tumbler_info_master_volume,
 757           .get = tumbler_get_master_volume,
 758           .put = tumbler_put_master_volume
 759         },
 760         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 761           .name = "Master Playback Switch",
 762           .info = snd_pmac_boolean_stereo_info,
 763           .get = tumbler_get_master_switch,
 764           .put = tumbler_put_master_switch
 765         },
 766         DEFINE_MONO("Tone Control - Bass", bass),
 767         DEFINE_MONO("Tone Control - Treble", treble),
 768         DEFINE_MONO("PCM Playback Volume", pcm),
 769         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 770           .name = "DRC Range",
 771           .info = tumbler_info_drc_value,
 772           .get = tumbler_get_drc_value,
 773           .put = tumbler_put_drc_value
 774         },
 775 };
 776
 777 static snd_kcontrol_new_t snapper_mixers[] __initdata = {
 778         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 779           .name = "Master Playback Volume",
 780           .info = tumbler_info_master_volume,
 781           .get = tumbler_get_master_volume,
 782           .put = tumbler_put_master_volume
 783         },
 784         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 785           .name = "Master Playback Switch",
 786           .info = snd_pmac_boolean_stereo_info,
 787           .get = tumbler_get_master_switch,
 788           .put = tumbler_put_master_switch
 789         },
 790         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
 791         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
 792         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
 793         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
 794         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
 795         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 796           .name = "DRC Range",
 797           .info = tumbler_info_drc_value,
 798           .get = tumbler_get_drc_value,
 799           .put = tumbler_put_drc_value
 800         },
 801         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 802           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
 803           .info = snapper_info_capture_source,
 804           .get = snapper_get_capture_source,
 805           .put = snapper_put_capture_source
 806         },
 807 };
 808
 809 static snd_kcontrol_new_t tumbler_hp_sw __initdata = {
 810         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 811         .name = "Headphone Playback Switch",
 812         .info = snd_pmac_boolean_mono_info,
 813         .get = tumbler_get_mute_switch,
 814         .put = tumbler_put_mute_switch,
 815         .private_value = TUMBLER_MUTE_HP,
 816 };
 817 static snd_kcontrol_new_t tumbler_speaker_sw __initdata = {
 818         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 819         .name = "PC Speaker Playback Switch",
 820         .info = snd_pmac_boolean_mono_info,
 821         .get = tumbler_get_mute_switch,
 822         .put = tumbler_put_mute_switch,
 823         .private_value = TUMBLER_MUTE_AMP,
 824 };
 825 static snd_kcontrol_new_t tumbler_drc_sw __initdata = {
 826         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 827         .name = "DRC Switch",
 828         .info = snd_pmac_boolean_mono_info,
 829         .get = tumbler_get_drc_switch,
 830         .put = tumbler_put_drc_switch
 831 };
 832
 833
 834 #ifdef PMAC_SUPPORT_AUTOMUTE
 835 /*
 836  * auto-mute stuffs
 837  */
 838 static int tumbler_detect_headphone(pmac_t *chip)
 839 {
 840         pmac_tumbler_t *mix = chip->mixer_data;
 841         return read_audio_gpio(&mix->hp_detect);
 842 }
 843
 844 static void check_mute(pmac_t *chip, pmac_gpio_t *gp, int val, int do_notify, snd_kcontrol_t *sw)
 845 {
 846         //pmac_tumbler_t *mix = chip->mixer_data;
 847         if (val != read_audio_gpio(gp)) {
 848                 write_audio_gpio(gp, val);
 849                 if (do_notify)
 850                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &sw->id);
 851         }
 852 }
 853
 854 static struct work_struct device_change;
 855
 856 static void
 857 device_change_handler(void *self)
 858 {
 859         pmac_t *chip = (pmac_t*) self;
 860         pmac_tumbler_t *mix;
 861
 862         if (!chip)
 863                 return;
 864
 865         mix = chip->mixer_data;
 866
 867         /* first set the DRC so the speaker do not explode -ReneR */
 868         if (chip->model == PMAC_TUMBLER)
 869                 tumbler_set_drc(mix);
 870         else
 871                 snapper_set_drc(mix);
 872
 873         /* reset the master volume so the correct amplification is applied */
 874         tumbler_set_master_volume(mix);
 875 }
 876
 877 static void tumbler_update_automute(pmac_t *chip, int do_notify)
 878 {
 879         if (chip->auto_mute) {
 880                 pmac_tumbler_t *mix = chip->mixer_data;
 881                 snd_assert(mix, return);
 882                 if (tumbler_detect_headphone(chip)) {
 883                         /* mute speaker */
 884                         check_mute(chip, &mix->amp_mute, 1, do_notify, chip->speaker_sw_ctl);
 885                         check_mute(chip, &mix->hp_mute, 0, do_notify, chip->master_sw_ctl);
 886                         mix->drc_enable = 0;
 887
 888                 } else {
 889                         /* unmute speaker */
 890                         check_mute(chip, &mix->amp_mute, 0, do_notify, chip->speaker_sw_ctl);
 891                         check_mute(chip, &mix->hp_mute, 1, do_notify, chip->master_sw_ctl);
 892                         mix->drc_enable = 1;
 893                 }
 894                 if (do_notify) {
 895                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 896                                        &chip->hp_detect_ctl->id);
 897                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
 898                                        &chip->drc_sw_ctl->id);
 899                 }
 900
 901                 /* finally we need to schedule an update of the mixer values
 902                    (master and DRC are enough for now) -ReneR */
 903                 schedule_work(&device_change);
 904
 905         }
 906 }
 907 #endif /* PMAC_SUPPORT_AUTOMUTE */
 908
 909
 910 /* interrupt - headphone plug changed */
 911 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
 912 {
 913         pmac_t *chip = devid;
 914         if (chip->update_automute && chip->initialized) {
 915                 chip->update_automute(chip, 1);
 916                 return IRQ_HANDLED;
 917         }
 918         return IRQ_NONE;
 919 }
 920
 921 /* look for audio-gpio device */
 922 static struct device_node *find_audio_device(const char *name)
 923 {
 924         struct device_node *np;
 925
 926         if (! (np = find_devices("gpio")))
 927                 return NULL;
 928
 929         for (np = np->child; np; np = np->sibling) {
 930                 char *property = get_property(np, "audio-gpio", NULL);
 931                 if (property && strcmp(property, name) == 0)
 932                         return np;
 933         }
 934         return NULL;
 935 }
 936
 937 /* look for audio-gpio device */
 938 static struct device_node *find_compatible_audio_device(const char *name)
 939 {
 940         struct device_node *np;
 941
 942         if (! (np = find_devices("gpio")))
 943                 return NULL;
 944
 945         for (np = np->child; np; np = np->sibling) {
 946                 if (device_is_compatible(np, name))
 947                         return np;
 948         }
 949         return NULL;
 950 }
 951
 952 /* find an audio device and get its address */
 953 static unsigned long tumbler_find_device(const char *device, pmac_gpio_t *gp, int is_compatible)
 954 {
 955         struct device_node *node;
 956         u32 *base;
 957
 958         if (is_compatible)
 959                 node = find_compatible_audio_device(device);
 960         else
 961                 node = find_audio_device(device);
 962         if (! node) {
 963                 snd_printdd("cannot find device %s\n", device);
 964                 return -ENODEV;
 965         }
 966
 967         base = (u32 *)get_property(node, "AAPL,address", NULL);
 968         if (! base) {
 969                 snd_printd("cannot find address for device %s\n", device);
 970                 return -ENODEV;
 971         }
 972
 973 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
 974         gp->addr = (*base) & 0x0000ffff;
 975 #else
 976         gp->addr = ioremap((unsigned long)(*base), 1);
 977 #endif
 978         base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
 979         if (base)
 980                 gp->active_state = *base;
 981         else
 982                 gp->active_state = 1;
 983
 984
 985         return (node->n_intrs > 0) ? node->intrs[0].line : 0;
 986 }
 987
 988 /* reset audio */
 989 static void tumbler_reset_audio(pmac_t *chip)
 990 {
 991         pmac_tumbler_t *mix = chip->mixer_data;
 992
 993         write_audio_gpio(&mix->audio_reset, 0);
 994         big_mdelay(200);
 995         write_audio_gpio(&mix->audio_reset, 1);
 996         big_mdelay(100);
 997         write_audio_gpio(&mix->audio_reset, 0);
 998         big_mdelay(100);
 999 }
1000
1001 #ifdef CONFIG_PMAC_PBOOK
1002 /* resume mixer */
1003 static void tumbler_resume(pmac_t *chip)
1004 {
1005         pmac_tumbler_t *mix = chip->mixer_data;
1006
1007         snd_assert(mix, return);
1008
1009         tumbler_reset_audio(chip);
1010         if (mix->i2c.client && mix->i2c.init_client) {
1011                 if (mix->i2c.init_client(&mix->i2c) < 0)
1012                         printk(KERN_ERR "tumbler_init_client error\n");
1013         } else
1014                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1015         if (chip->model == PMAC_TUMBLER) {
1016                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1017                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1018                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1019                 tumbler_set_drc(mix);
1020         } else {
1021                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1022                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1023                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1024                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1025                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1026                 snapper_set_drc(mix);
1027                 snapper_set_capture_source(mix);
1028         }
1029         tumbler_set_master_volume(mix);
1030         if (chip->update_automute)
1031                 chip->update_automute(chip, 0);
1032 }
1033 #endif
1034
1035 /* initialize tumbler */
1036 static int __init tumbler_init(pmac_t *chip)
1037 {
1038         int irq, err;
1039         pmac_tumbler_t *mix = chip->mixer_data;
1040         snd_assert(mix, return -EINVAL);
1041
1042         tumbler_find_device("audio-hw-reset", &mix->audio_reset, 0);
1043         tumbler_find_device("amp-mute", &mix->amp_mute, 0);
1044         tumbler_find_device("headphone-mute", &mix->hp_mute, 0);
1045         irq = tumbler_find_device("headphone-detect", &mix->hp_detect, 0);
1046         if (irq < 0)
1047                 irq = tumbler_find_device("keywest-gpio15", &mix->hp_detect, 1);
1048
1049         tumbler_reset_audio(chip);
1050
1051         /* activate headphone status interrupts */
1052         if (irq >= 0) {
1053                 unsigned char val;
1054                 if ((err = request_irq(irq, headphone_intr, 0,
1055                                        "Tumbler Headphone Detection", chip)) < 0)
1056                         return err;
1057                 /* activate headphone status interrupts */
1058                 val = do_gpio_read(&mix->hp_detect);
1059                 do_gpio_write(&mix->hp_detect, val | 0x80);
1060         }
1061         mix->headphone_irq = irq;
1062
1063         return 0;
1064 }
1065
1066 static void tumbler_cleanup(pmac_t *chip)
1067 {
1068         pmac_tumbler_t *mix = chip->mixer_data;
1069         if (! mix)
1070                 return;
1071
1072         if (mix->headphone_irq >= 0)
1073                 free_irq(mix->headphone_irq, chip);
1074         tumbler_gpio_free(&mix->audio_reset);
1075         tumbler_gpio_free(&mix->amp_mute);
1076         tumbler_gpio_free(&mix->hp_mute);
1077         tumbler_gpio_free(&mix->hp_detect);
1078         snd_pmac_keywest_cleanup(&mix->i2c);
1079         kfree(mix);
1080         chip->mixer_data = NULL;
1081 }
1082
1083 /* exported */
1084 int __init snd_pmac_tumbler_init(pmac_t *chip)
1085 {
1086         int i, err;
1087         pmac_tumbler_t *mix;
1088         u32 *paddr;
1089         struct device_node *tas_node;
1090         char *chipname;
1091
1092 #ifdef CONFIG_KMOD
1093         if (current->fs->root)
1094                 request_module("i2c-keywest");
1095 #endif /* CONFIG_KMOD */
1096
1097         mix = kmalloc(sizeof(*mix), GFP_KERNEL);
1098         if (! mix)
1099                 return -ENOMEM;
1100         memset(mix, 0, sizeof(*mix));
1101         mix->headphone_irq = -1;
1102
1103         chip->mixer_data = mix;
1104         chip->mixer_free = tumbler_cleanup;
1105
1106         if ((err = tumbler_init(chip)) < 0)
1107                 return err;
1108
1109         /* set up TAS */
1110         tas_node = find_devices("deq");
1111         if (tas_node == NULL)
1112                 return -ENODEV;
1113
1114         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1115         if (paddr)
1116                 mix->i2c.addr = (*paddr) >> 1;
1117         else
1118                 mix->i2c.addr = TAS_I2C_ADDR;
1119
1120         if (chip->model == PMAC_TUMBLER) {
1121                 mix->i2c.init_client = tumbler_init_client;
1122                 mix->i2c.name = "TAS3001c";
1123                 chipname = "Tumbler";
1124         } else {
1125                 mix->i2c.init_client = snapper_init_client;
1126                 mix->i2c.name = "TAS3004";
1127                 chipname = "Snapper";
1128         }
1129
1130         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1131                 return err;
1132
1133         /*
1134          * build mixers
1135          */
1136         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1137
1138         if (chip->model == PMAC_TUMBLER) {
1139                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1140                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1141                                 return err;
1142                 }
1143         } else {
1144                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1145                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1146                                 return err;
1147                 }
1148         }
1149         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1150         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1151                 return err;
1152         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1153         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1154                 return err;
1155         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1156         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1157                 return err;
1158
1159
1160 #ifdef CONFIG_PMAC_PBOOK
1161         chip->resume = tumbler_resume;
1162 #endif
1163
1164         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1165
1166 #ifdef PMAC_SUPPORT_AUTOMUTE
1167         if (mix->headphone_irq >=0 && (err = snd_pmac_add_automute(chip)) < 0)
1168                 return err;
1169         chip->detect_headphone = tumbler_detect_headphone;
1170         chip->update_automute = tumbler_update_automute;
1171         tumbler_update_automute(chip, 0); /* update the status only */
1172 #endif
1173
1174         return 0;
1175 }