sound/soc/pxa/magician.c

   1 /*
   2  * SoC audio for HTC Magician
   3  *
   4  * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
   5  *
   6  * based on spitz.c,
   7  * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
   8  *          Richard Purdie <richard@openedhand.com>
   9  *
  10  *  This program is free software; you can redistribute  it and/or modify it
  11  *  under  the terms of  the GNU General  Public License as published by the
  12  *  Free Software Foundation;  either version 2 of the  License, or (at your
  13  *  option) any later version.
  14  *
  15  */
  16
  17 #include <linux/module.h>
  18 #include <linux/timer.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/delay.h>
  22 #include <linux/gpio.h>
  23 #include <linux/i2c.h>
  24
  25 #include <sound/core.h>
  26 #include <sound/pcm.h>
  27 #include <sound/pcm_params.h>
  28 #include <sound/soc.h>
  29 #include <sound/uda1380.h>
  30
  31 #include <mach/magician.h>
  32 #include <asm/mach-types.h>
  33 #include "../codecs/uda1380.h"
  34 #include "pxa2xx-i2s.h"
  35 #include "pxa-ssp.h"
  36
  37 #define MAGICIAN_MIC       0
  38 #define MAGICIAN_MIC_EXT   1
  39
  40 static int magician_hp_switch;
  41 static int magician_spk_switch = 1;
  42 static int magician_in_sel = MAGICIAN_MIC;
  43
  44 static void magician_ext_control(struct snd_soc_dapm_context *dapm)
  45 {
  46
  47         snd_soc_dapm_mutex_lock(dapm);
  48
  49         if (magician_spk_switch)
  50                 snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
  51         else
  52                 snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
  53         if (magician_hp_switch)
  54                 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
  55         else
  56                 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
  57
  58         switch (magician_in_sel) {
  59         case MAGICIAN_MIC:
  60                 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
  61                 snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
  62                 break;
  63         case MAGICIAN_MIC_EXT:
  64                 snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
  65                 snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
  66                 break;
  67         }
  68
  69         snd_soc_dapm_sync_unlocked(dapm);
  70
  71         snd_soc_dapm_mutex_unlock(dapm);
  72 }
  73
  74 static int magician_startup(struct snd_pcm_substream *substream)
  75 {
  76         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  77
  78         /* check the jack status at stream startup */
  79         magician_ext_control(&rtd->card->dapm);
  80
  81         return 0;
  82 }
  83
  84 /*
  85  * Magician uses SSP port for playback.
  86  */
  87 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
  88                                        struct snd_pcm_hw_params *params)
  89 {
  90         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  91         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  92         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  93         unsigned int width;
  94         int ret = 0;
  95
  96         /* set codec DAI configuration */
  97         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
  98                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
  99         if (ret < 0)
 100                 return ret;
 101
 102         /* set cpu DAI configuration */
 103         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
 104                         SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
 105         if (ret < 0)
 106                 return ret;
 107
 108         width = snd_pcm_format_physical_width(params_format(params));
 109         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
 110         if (ret < 0)
 111                 return ret;
 112
 113         /* set audio clock as clock source */
 114         ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
 115                         SND_SOC_CLOCK_OUT);
 116         if (ret < 0)
 117                 return ret;
 118
 119         return 0;
 120 }
 121
 122 /*
 123  * Magician uses I2S for capture.
 124  */
 125 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
 126                                       struct snd_pcm_hw_params *params)
 127 {
 128         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 129         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 130         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 131         int ret = 0;
 132
 133         /* set codec DAI configuration */
 134         ret = snd_soc_dai_set_fmt(codec_dai,
 135                         SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
 136                         SND_SOC_DAIFMT_CBS_CFS);
 137         if (ret < 0)
 138                 return ret;
 139
 140         /* set cpu DAI configuration */
 141         ret = snd_soc_dai_set_fmt(cpu_dai,
 142                         SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
 143                         SND_SOC_DAIFMT_CBS_CFS);
 144         if (ret < 0)
 145                 return ret;
 146
 147         /* set the I2S system clock as output */
 148         ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
 149                         SND_SOC_CLOCK_OUT);
 150         if (ret < 0)
 151                 return ret;
 152
 153         return 0;
 154 }
 155
 156 static const struct snd_soc_ops magician_capture_ops = {
 157         .startup = magician_startup,
 158         .hw_params = magician_capture_hw_params,
 159 };
 160
 161 static const struct snd_soc_ops magician_playback_ops = {
 162         .startup = magician_startup,
 163         .hw_params = magician_playback_hw_params,
 164 };
 165
 166 static int magician_get_hp(struct snd_kcontrol *kcontrol,
 167                              struct snd_ctl_elem_value *ucontrol)
 168 {
 169         ucontrol->value.integer.value[0] = magician_hp_switch;
 170         return 0;
 171 }
 172
 173 static int magician_set_hp(struct snd_kcontrol *kcontrol,
 174                              struct snd_ctl_elem_value *ucontrol)
 175 {
 176         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 177
 178         if (magician_hp_switch == ucontrol->value.integer.value[0])
 179                 return 0;
 180
 181         magician_hp_switch = ucontrol->value.integer.value[0];
 182         magician_ext_control(&card->dapm);
 183         return 1;
 184 }
 185
 186 static int magician_get_spk(struct snd_kcontrol *kcontrol,
 187                             struct snd_ctl_elem_value *ucontrol)
 188 {
 189         ucontrol->value.integer.value[0] = magician_spk_switch;
 190         return 0;
 191 }
 192
 193 static int magician_set_spk(struct snd_kcontrol *kcontrol,
 194                             struct snd_ctl_elem_value *ucontrol)
 195 {
 196         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 197
 198         if (magician_spk_switch == ucontrol->value.integer.value[0])
 199                 return 0;
 200
 201         magician_spk_switch = ucontrol->value.integer.value[0];
 202         magician_ext_control(&card->dapm);
 203         return 1;
 204 }
 205
 206 static int magician_get_input(struct snd_kcontrol *kcontrol,
 207                               struct snd_ctl_elem_value *ucontrol)
 208 {
 209         ucontrol->value.enumerated.item[0] = magician_in_sel;
 210         return 0;
 211 }
 212
 213 static int magician_set_input(struct snd_kcontrol *kcontrol,
 214                               struct snd_ctl_elem_value *ucontrol)
 215 {
 216         if (magician_in_sel == ucontrol->value.enumerated.item[0])
 217                 return 0;
 218
 219         magician_in_sel = ucontrol->value.enumerated.item[0];
 220
 221         switch (magician_in_sel) {
 222         case MAGICIAN_MIC:
 223                 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
 224                 break;
 225         case MAGICIAN_MIC_EXT:
 226                 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
 227         }
 228
 229         return 1;
 230 }
 231
 232 static int magician_spk_power(struct snd_soc_dapm_widget *w,
 233                                 struct snd_kcontrol *k, int event)
 234 {
 235         gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
 236         return 0;
 237 }
 238
 239 static int magician_hp_power(struct snd_soc_dapm_widget *w,
 240                                 struct snd_kcontrol *k, int event)
 241 {
 242         gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
 243         return 0;
 244 }
 245
 246 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
 247                                 struct snd_kcontrol *k, int event)
 248 {
 249         gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
 250         return 0;
 251 }
 252
 253 /* magician machine dapm widgets */
 254 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
 255         SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
 256         SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
 257         SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
 258         SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
 259 };
 260
 261 /* magician machine audio_map */
 262 static const struct snd_soc_dapm_route audio_map[] = {
 263
 264         /* Headphone connected to VOUTL, VOUTR */
 265         {"Headphone Jack", NULL, "VOUTL"},
 266         {"Headphone Jack", NULL, "VOUTR"},
 267
 268         /* Speaker connected to VOUTL, VOUTR */
 269         {"Speaker", NULL, "VOUTL"},
 270         {"Speaker", NULL, "VOUTR"},
 271
 272         /* Mics are connected to VINM */
 273         {"VINM", NULL, "Headset Mic"},
 274         {"VINM", NULL, "Call Mic"},
 275 };
 276
 277 static const char * const input_select[] = {"Call Mic", "Headset Mic"};
 278 static const struct soc_enum magician_in_sel_enum =
 279         SOC_ENUM_SINGLE_EXT(2, input_select);
 280
 281 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
 282         SOC_SINGLE_BOOL_EXT("Headphone Switch",
 283                         (unsigned long)&magician_hp_switch,
 284                         magician_get_hp, magician_set_hp),
 285         SOC_SINGLE_BOOL_EXT("Speaker Switch",
 286                         (unsigned long)&magician_spk_switch,
 287                         magician_get_spk, magician_set_spk),
 288         SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
 289                         magician_get_input, magician_set_input),
 290 };
 291
 292 /* magician digital audio interface glue - connects codec <--> CPU */
 293 static struct snd_soc_dai_link magician_dai[] = {
 294 {
 295         .name = "uda1380",
 296         .stream_name = "UDA1380 Playback",
 297         .cpu_dai_name = "pxa-ssp-dai.0",
 298         .codec_dai_name = "uda1380-hifi-playback",
 299         .platform_name = "pxa-pcm-audio",
 300         .codec_name = "uda1380-codec.0-0018",
 301         .ops = &magician_playback_ops,
 302 },
 303 {
 304         .name = "uda1380",
 305         .stream_name = "UDA1380 Capture",
 306         .cpu_dai_name = "pxa2xx-i2s",
 307         .codec_dai_name = "uda1380-hifi-capture",
 308         .platform_name = "pxa-pcm-audio",
 309         .codec_name = "uda1380-codec.0-0018",
 310         .ops = &magician_capture_ops,
 311 }
 312 };
 313
 314 /* magician audio machine driver */
 315 static struct snd_soc_card snd_soc_card_magician = {
 316         .name = "Magician",
 317         .owner = THIS_MODULE,
 318         .dai_link = magician_dai,
 319         .num_links = ARRAY_SIZE(magician_dai),
 320
 321         .controls = uda1380_magician_controls,
 322         .num_controls = ARRAY_SIZE(uda1380_magician_controls),
 323         .dapm_widgets = uda1380_dapm_widgets,
 324         .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
 325         .dapm_routes = audio_map,
 326         .num_dapm_routes = ARRAY_SIZE(audio_map),
 327         .fully_routed = true,
 328 };
 329
 330 static struct platform_device *magician_snd_device;
 331
 332 /*
 333  * FIXME: move into magician board file once merged into the pxa tree
 334  */
 335 static struct uda1380_platform_data uda1380_info = {
 336         .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
 337         .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
 338         .dac_clk    = UDA1380_DAC_CLK_WSPLL,
 339 };
 340
 341 static struct i2c_board_info i2c_board_info[] = {
 342         {
 343                 I2C_BOARD_INFO("uda1380", 0x18),
 344                 .platform_data = &uda1380_info,
 345         },
 346 };
 347
 348 static int __init magician_init(void)
 349 {
 350         int ret;
 351         struct i2c_adapter *adapter;
 352         struct i2c_client *client;
 353
 354         if (!machine_is_magician())
 355                 return -ENODEV;
 356
 357         adapter = i2c_get_adapter(0);
 358         if (!adapter)
 359                 return -ENODEV;
 360         client = i2c_new_device(adapter, i2c_board_info);
 361         i2c_put_adapter(adapter);
 362         if (!client)
 363                 return -ENODEV;
 364
 365         ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
 366         if (ret)
 367                 goto err_request_spk;
 368         ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
 369         if (ret)
 370                 goto err_request_ep;
 371         ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
 372         if (ret)
 373                 goto err_request_mic;
 374         ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
 375         if (ret)
 376                 goto err_request_in_sel0;
 377         ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
 378         if (ret)
 379                 goto err_request_in_sel1;
 380
 381         gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
 382
 383         magician_snd_device = platform_device_alloc("soc-audio", -1);
 384         if (!magician_snd_device) {
 385                 ret = -ENOMEM;
 386                 goto err_pdev;
 387         }
 388
 389         platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
 390         ret = platform_device_add(magician_snd_device);
 391         if (ret) {
 392                 platform_device_put(magician_snd_device);
 393                 goto err_pdev;
 394         }
 395
 396         return 0;
 397
 398 err_pdev:
 399         gpio_free(EGPIO_MAGICIAN_IN_SEL1);
 400 err_request_in_sel1:
 401         gpio_free(EGPIO_MAGICIAN_IN_SEL0);
 402 err_request_in_sel0:
 403         gpio_free(EGPIO_MAGICIAN_MIC_POWER);
 404 err_request_mic:
 405         gpio_free(EGPIO_MAGICIAN_EP_POWER);
 406 err_request_ep:
 407         gpio_free(EGPIO_MAGICIAN_SPK_POWER);
 408 err_request_spk:
 409         return ret;
 410 }
 411
 412 static void __exit magician_exit(void)
 413 {
 414         platform_device_unregister(magician_snd_device);
 415
 416         gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
 417         gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
 418         gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
 419
 420         gpio_free(EGPIO_MAGICIAN_IN_SEL1);
 421         gpio_free(EGPIO_MAGICIAN_IN_SEL0);
 422         gpio_free(EGPIO_MAGICIAN_MIC_POWER);
 423         gpio_free(EGPIO_MAGICIAN_EP_POWER);
 424         gpio_free(EGPIO_MAGICIAN_SPK_POWER);
 425 }
 426
 427 module_init(magician_init);
 428 module_exit(magician_exit);
 429
 430 MODULE_AUTHOR("Philipp Zabel");
 431 MODULE_DESCRIPTION("ALSA SoC Magician");
 432 MODULE_LICENSE("GPL");