sound/soc/pxa/magician.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * SoC audio for HTC Magician
   4  *
   5  * Copyright (c) 2006 Philipp Zabel <philipp.zabel@gmail.com>
   6  *
   7  * based on spitz.c,
   8  * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
   9  *          Richard Purdie <richard@openedhand.com>
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/timer.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/delay.h>
  17 #include <linux/gpio.h>
  18 #include <linux/i2c.h>
  19
  20 #include <sound/core.h>
  21 #include <sound/pcm.h>
  22 #include <sound/pcm_params.h>
  23 #include <sound/soc.h>
  24 #include <sound/uda1380.h>
  25
  26 #include <mach/magician.h>
  27 #include <asm/mach-types.h>
  28 #include "../codecs/uda1380.h"
  29 #include "pxa2xx-i2s.h"
  30 #include "pxa-ssp.h"
  31
  32 #define MAGICIAN_MIC       0
  33 #define MAGICIAN_MIC_EXT   1
  34
  35 static int magician_hp_switch;
  36 static int magician_spk_switch = 1;
  37 static int magician_in_sel = MAGICIAN_MIC;
  38
  39 static void magician_ext_control(struct snd_soc_dapm_context *dapm)
  40 {
  41
  42         snd_soc_dapm_mutex_lock(dapm);
  43
  44         if (magician_spk_switch)
  45                 snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
  46         else
  47                 snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
  48         if (magician_hp_switch)
  49                 snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
  50         else
  51                 snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
  52
  53         switch (magician_in_sel) {
  54         case MAGICIAN_MIC:
  55                 snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Mic");
  56                 snd_soc_dapm_enable_pin_unlocked(dapm, "Call Mic");
  57                 break;
  58         case MAGICIAN_MIC_EXT:
  59                 snd_soc_dapm_disable_pin_unlocked(dapm, "Call Mic");
  60                 snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Mic");
  61                 break;
  62         }
  63
  64         snd_soc_dapm_sync_unlocked(dapm);
  65
  66         snd_soc_dapm_mutex_unlock(dapm);
  67 }
  68
  69 static int magician_startup(struct snd_pcm_substream *substream)
  70 {
  71         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  72
  73         /* check the jack status at stream startup */
  74         magician_ext_control(&rtd->card->dapm);
  75
  76         return 0;
  77 }
  78
  79 /*
  80  * Magician uses SSP port for playback.
  81  */
  82 static int magician_playback_hw_params(struct snd_pcm_substream *substream,
  83                                        struct snd_pcm_hw_params *params)
  84 {
  85         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  86         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  87         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
  88         unsigned int width;
  89         int ret = 0;
  90
  91         /* set codec DAI configuration */
  92         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_MSB |
  93                         SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
  94         if (ret < 0)
  95                 return ret;
  96
  97         /* set cpu DAI configuration */
  98         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
  99                         SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_CBS_CFS);
 100         if (ret < 0)
 101                 return ret;
 102
 103         width = snd_pcm_format_physical_width(params_format(params));
 104         ret = snd_soc_dai_set_tdm_slot(cpu_dai, 1, 0, 1, width);
 105         if (ret < 0)
 106                 return ret;
 107
 108         /* set audio clock as clock source */
 109         ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_AUDIO, 0,
 110                         SND_SOC_CLOCK_OUT);
 111         if (ret < 0)
 112                 return ret;
 113
 114         return 0;
 115 }
 116
 117 /*
 118  * Magician uses I2S for capture.
 119  */
 120 static int magician_capture_hw_params(struct snd_pcm_substream *substream,
 121                                       struct snd_pcm_hw_params *params)
 122 {
 123         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 124         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 125         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 126         int ret = 0;
 127
 128         /* set codec DAI configuration */
 129         ret = snd_soc_dai_set_fmt(codec_dai,
 130                         SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
 131                         SND_SOC_DAIFMT_CBS_CFS);
 132         if (ret < 0)
 133                 return ret;
 134
 135         /* set cpu DAI configuration */
 136         ret = snd_soc_dai_set_fmt(cpu_dai,
 137                         SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
 138                         SND_SOC_DAIFMT_CBS_CFS);
 139         if (ret < 0)
 140                 return ret;
 141
 142         /* set the I2S system clock as output */
 143         ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
 144                         SND_SOC_CLOCK_OUT);
 145         if (ret < 0)
 146                 return ret;
 147
 148         return 0;
 149 }
 150
 151 static const struct snd_soc_ops magician_capture_ops = {
 152         .startup = magician_startup,
 153         .hw_params = magician_capture_hw_params,
 154 };
 155
 156 static const struct snd_soc_ops magician_playback_ops = {
 157         .startup = magician_startup,
 158         .hw_params = magician_playback_hw_params,
 159 };
 160
 161 static int magician_get_hp(struct snd_kcontrol *kcontrol,
 162                              struct snd_ctl_elem_value *ucontrol)
 163 {
 164         ucontrol->value.integer.value[0] = magician_hp_switch;
 165         return 0;
 166 }
 167
 168 static int magician_set_hp(struct snd_kcontrol *kcontrol,
 169                              struct snd_ctl_elem_value *ucontrol)
 170 {
 171         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 172
 173         if (magician_hp_switch == ucontrol->value.integer.value[0])
 174                 return 0;
 175
 176         magician_hp_switch = ucontrol->value.integer.value[0];
 177         magician_ext_control(&card->dapm);
 178         return 1;
 179 }
 180
 181 static int magician_get_spk(struct snd_kcontrol *kcontrol,
 182                             struct snd_ctl_elem_value *ucontrol)
 183 {
 184         ucontrol->value.integer.value[0] = magician_spk_switch;
 185         return 0;
 186 }
 187
 188 static int magician_set_spk(struct snd_kcontrol *kcontrol,
 189                             struct snd_ctl_elem_value *ucontrol)
 190 {
 191         struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 192
 193         if (magician_spk_switch == ucontrol->value.integer.value[0])
 194                 return 0;
 195
 196         magician_spk_switch = ucontrol->value.integer.value[0];
 197         magician_ext_control(&card->dapm);
 198         return 1;
 199 }
 200
 201 static int magician_get_input(struct snd_kcontrol *kcontrol,
 202                               struct snd_ctl_elem_value *ucontrol)
 203 {
 204         ucontrol->value.enumerated.item[0] = magician_in_sel;
 205         return 0;
 206 }
 207
 208 static int magician_set_input(struct snd_kcontrol *kcontrol,
 209                               struct snd_ctl_elem_value *ucontrol)
 210 {
 211         if (magician_in_sel == ucontrol->value.enumerated.item[0])
 212                 return 0;
 213
 214         magician_in_sel = ucontrol->value.enumerated.item[0];
 215
 216         switch (magician_in_sel) {
 217         case MAGICIAN_MIC:
 218                 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 1);
 219                 break;
 220         case MAGICIAN_MIC_EXT:
 221                 gpio_set_value(EGPIO_MAGICIAN_IN_SEL1, 0);
 222         }
 223
 224         return 1;
 225 }
 226
 227 static int magician_spk_power(struct snd_soc_dapm_widget *w,
 228                                 struct snd_kcontrol *k, int event)
 229 {
 230         gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, SND_SOC_DAPM_EVENT_ON(event));
 231         return 0;
 232 }
 233
 234 static int magician_hp_power(struct snd_soc_dapm_widget *w,
 235                                 struct snd_kcontrol *k, int event)
 236 {
 237         gpio_set_value(EGPIO_MAGICIAN_EP_POWER, SND_SOC_DAPM_EVENT_ON(event));
 238         return 0;
 239 }
 240
 241 static int magician_mic_bias(struct snd_soc_dapm_widget *w,
 242                                 struct snd_kcontrol *k, int event)
 243 {
 244         gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, SND_SOC_DAPM_EVENT_ON(event));
 245         return 0;
 246 }
 247
 248 /* magician machine dapm widgets */
 249 static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
 250         SND_SOC_DAPM_HP("Headphone Jack", magician_hp_power),
 251         SND_SOC_DAPM_SPK("Speaker", magician_spk_power),
 252         SND_SOC_DAPM_MIC("Call Mic", magician_mic_bias),
 253         SND_SOC_DAPM_MIC("Headset Mic", magician_mic_bias),
 254 };
 255
 256 /* magician machine audio_map */
 257 static const struct snd_soc_dapm_route audio_map[] = {
 258
 259         /* Headphone connected to VOUTL, VOUTR */
 260         {"Headphone Jack", NULL, "VOUTL"},
 261         {"Headphone Jack", NULL, "VOUTR"},
 262
 263         /* Speaker connected to VOUTL, VOUTR */
 264         {"Speaker", NULL, "VOUTL"},
 265         {"Speaker", NULL, "VOUTR"},
 266
 267         /* Mics are connected to VINM */
 268         {"VINM", NULL, "Headset Mic"},
 269         {"VINM", NULL, "Call Mic"},
 270 };
 271
 272 static const char * const input_select[] = {"Call Mic", "Headset Mic"};
 273 static const struct soc_enum magician_in_sel_enum =
 274         SOC_ENUM_SINGLE_EXT(2, input_select);
 275
 276 static const struct snd_kcontrol_new uda1380_magician_controls[] = {
 277         SOC_SINGLE_BOOL_EXT("Headphone Switch",
 278                         (unsigned long)&magician_hp_switch,
 279                         magician_get_hp, magician_set_hp),
 280         SOC_SINGLE_BOOL_EXT("Speaker Switch",
 281                         (unsigned long)&magician_spk_switch,
 282                         magician_get_spk, magician_set_spk),
 283         SOC_ENUM_EXT("Input Select", magician_in_sel_enum,
 284                         magician_get_input, magician_set_input),
 285 };
 286
 287 /* magician digital audio interface glue - connects codec <--> CPU */
 288 SND_SOC_DAILINK_DEFS(playback,
 289         DAILINK_COMP_ARRAY(COMP_CPU("pxa-ssp-dai.0")),
 290         DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
 291                                       "uda1380-hifi-playback")),
 292         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 293
 294 SND_SOC_DAILINK_DEFS(capture,
 295         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
 296         DAILINK_COMP_ARRAY(COMP_CODEC("uda1380-codec.0-0018",
 297                                       "uda1380-hifi-capture")),
 298         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
 299
 300 static struct snd_soc_dai_link magician_dai[] = {
 301 {
 302         .name = "uda1380",
 303         .stream_name = "UDA1380 Playback",
 304         .ops = &magician_playback_ops,
 305         SND_SOC_DAILINK_REG(playback),
 306 },
 307 {
 308         .name = "uda1380",
 309         .stream_name = "UDA1380 Capture",
 310         .ops = &magician_capture_ops,
 311         SND_SOC_DAILINK_REG(capture),
 312 }
 313 };
 314
 315 /* magician audio machine driver */
 316 static struct snd_soc_card snd_soc_card_magician = {
 317         .name = "Magician",
 318         .owner = THIS_MODULE,
 319         .dai_link = magician_dai,
 320         .num_links = ARRAY_SIZE(magician_dai),
 321
 322         .controls = uda1380_magician_controls,
 323         .num_controls = ARRAY_SIZE(uda1380_magician_controls),
 324         .dapm_widgets = uda1380_dapm_widgets,
 325         .num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
 326         .dapm_routes = audio_map,
 327         .num_dapm_routes = ARRAY_SIZE(audio_map),
 328         .fully_routed = true,
 329 };
 330
 331 static struct platform_device *magician_snd_device;
 332
 333 /*
 334  * FIXME: move into magician board file once merged into the pxa tree
 335  */
 336 static struct uda1380_platform_data uda1380_info = {
 337         .gpio_power = EGPIO_MAGICIAN_CODEC_POWER,
 338         .gpio_reset = EGPIO_MAGICIAN_CODEC_RESET,
 339         .dac_clk    = UDA1380_DAC_CLK_WSPLL,
 340 };
 341
 342 static struct i2c_board_info i2c_board_info[] = {
 343         {
 344                 I2C_BOARD_INFO("uda1380", 0x18),
 345                 .platform_data = &uda1380_info,
 346         },
 347 };
 348
 349 static int __init magician_init(void)
 350 {
 351         int ret;
 352         struct i2c_adapter *adapter;
 353         struct i2c_client *client;
 354
 355         if (!machine_is_magician())
 356                 return -ENODEV;
 357
 358         adapter = i2c_get_adapter(0);
 359         if (!adapter)
 360                 return -ENODEV;
 361         client = i2c_new_client_device(adapter, i2c_board_info);
 362         i2c_put_adapter(adapter);
 363         if (IS_ERR(client))
 364                 return PTR_ERR(client);
 365
 366         ret = gpio_request(EGPIO_MAGICIAN_SPK_POWER, "SPK_POWER");
 367         if (ret)
 368                 goto err_request_spk;
 369         ret = gpio_request(EGPIO_MAGICIAN_EP_POWER, "EP_POWER");
 370         if (ret)
 371                 goto err_request_ep;
 372         ret = gpio_request(EGPIO_MAGICIAN_MIC_POWER, "MIC_POWER");
 373         if (ret)
 374                 goto err_request_mic;
 375         ret = gpio_request(EGPIO_MAGICIAN_IN_SEL0, "IN_SEL0");
 376         if (ret)
 377                 goto err_request_in_sel0;
 378         ret = gpio_request(EGPIO_MAGICIAN_IN_SEL1, "IN_SEL1");
 379         if (ret)
 380                 goto err_request_in_sel1;
 381
 382         gpio_set_value(EGPIO_MAGICIAN_IN_SEL0, 0);
 383
 384         magician_snd_device = platform_device_alloc("soc-audio", -1);
 385         if (!magician_snd_device) {
 386                 ret = -ENOMEM;
 387                 goto err_pdev;
 388         }
 389
 390         platform_set_drvdata(magician_snd_device, &snd_soc_card_magician);
 391         ret = platform_device_add(magician_snd_device);
 392         if (ret) {
 393                 platform_device_put(magician_snd_device);
 394                 goto err_pdev;
 395         }
 396
 397         return 0;
 398
 399 err_pdev:
 400         gpio_free(EGPIO_MAGICIAN_IN_SEL1);
 401 err_request_in_sel1:
 402         gpio_free(EGPIO_MAGICIAN_IN_SEL0);
 403 err_request_in_sel0:
 404         gpio_free(EGPIO_MAGICIAN_MIC_POWER);
 405 err_request_mic:
 406         gpio_free(EGPIO_MAGICIAN_EP_POWER);
 407 err_request_ep:
 408         gpio_free(EGPIO_MAGICIAN_SPK_POWER);
 409 err_request_spk:
 410         return ret;
 411 }
 412
 413 static void __exit magician_exit(void)
 414 {
 415         platform_device_unregister(magician_snd_device);
 416
 417         gpio_set_value(EGPIO_MAGICIAN_SPK_POWER, 0);
 418         gpio_set_value(EGPIO_MAGICIAN_EP_POWER, 0);
 419         gpio_set_value(EGPIO_MAGICIAN_MIC_POWER, 0);
 420
 421         gpio_free(EGPIO_MAGICIAN_IN_SEL1);
 422         gpio_free(EGPIO_MAGICIAN_IN_SEL0);
 423         gpio_free(EGPIO_MAGICIAN_MIC_POWER);
 424         gpio_free(EGPIO_MAGICIAN_EP_POWER);
 425         gpio_free(EGPIO_MAGICIAN_SPK_POWER);
 426 }
 427
 428 module_init(magician_init);
 429 module_exit(magician_exit);
 430
 431 MODULE_AUTHOR("Philipp Zabel");
 432 MODULE_DESCRIPTION("ALSA SoC Magician");
 433 MODULE_LICENSE("GPL");