sound/soc/amd/acp-da7219-max98357a.c

   1 /*
   2  * Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec
   3  *
   4  * Copyright 2017 Advanced Micro Devices, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  */
  25
  26 #include <sound/core.h>
  27 #include <sound/soc.h>
  28 #include <sound/pcm.h>
  29 #include <sound/pcm_params.h>
  30 #include <sound/soc-dapm.h>
  31 #include <sound/jack.h>
  32 #include <linux/clk.h>
  33 #include <linux/gpio.h>
  34 #include <linux/module.h>
  35 #include <linux/regulator/machine.h>
  36 #include <linux/regulator/driver.h>
  37 #include <linux/i2c.h>
  38 #include <linux/input.h>
  39 #include <linux/acpi.h>
  40
  41 #include "acp.h"
  42 #include "../codecs/da7219.h"
  43 #include "../codecs/da7219-aad.h"
  44
  45 #define CZ_PLAT_CLK 48000000
  46 #define DUAL_CHANNEL            2
  47
  48 static struct snd_soc_jack cz_jack;
  49 static struct clk *da7219_dai_clk;
  50 extern int bt_uart_enable;
  51
  52 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
  53 {
  54         int ret;
  55         struct snd_soc_card *card = rtd->card;
  56         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  57         struct snd_soc_component *component = codec_dai->component;
  58
  59         dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
  60
  61         ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
  62                                      CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
  63         if (ret < 0) {
  64                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
  65                 return ret;
  66         }
  67
  68         ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
  69                                   CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
  70         if (ret < 0) {
  71                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
  72                 return ret;
  73         }
  74
  75         da7219_dai_clk = clk_get(component->dev, "da7219-dai-clks");
  76
  77         ret = snd_soc_card_jack_new(card, "Headset Jack",
  78                                 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
  79                                 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
  80                                 SND_JACK_BTN_2 | SND_JACK_BTN_3,
  81                                 &cz_jack, NULL, 0);
  82         if (ret) {
  83                 dev_err(card->dev, "HP jack creation failed %d\n", ret);
  84                 return ret;
  85         }
  86
  87         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  88         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
  89         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
  90         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
  91
  92         da7219_aad_jack_det(component, &cz_jack);
  93
  94         return 0;
  95 }
  96
  97 static int da7219_clk_enable(struct snd_pcm_substream *substream)
  98 {
  99         int ret = 0;
 100         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 101
 102         ret = clk_prepare_enable(da7219_dai_clk);
 103         if (ret < 0) {
 104                 dev_err(rtd->dev, "can't enable master clock %d\n", ret);
 105                 return ret;
 106         }
 107
 108         return ret;
 109 }
 110
 111 static void da7219_clk_disable(void)
 112 {
 113         clk_disable_unprepare(da7219_dai_clk);
 114 }
 115
 116 static const unsigned int channels[] = {
 117         DUAL_CHANNEL,
 118 };
 119
 120 static const unsigned int rates[] = {
 121         48000,
 122 };
 123
 124 static const struct snd_pcm_hw_constraint_list constraints_rates = {
 125         .count = ARRAY_SIZE(rates),
 126         .list  = rates,
 127         .mask = 0,
 128 };
 129
 130 static const struct snd_pcm_hw_constraint_list constraints_channels = {
 131         .count = ARRAY_SIZE(channels),
 132         .list = channels,
 133         .mask = 0,
 134 };
 135
 136 static int cz_da7219_startup(struct snd_pcm_substream *substream)
 137 {
 138         struct snd_pcm_runtime *runtime = substream->runtime;
 139         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 140         struct snd_soc_card *card = rtd->card;
 141         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 142
 143         /*
 144          * On this platform for PCM device we support stereo
 145          */
 146
 147         runtime->hw.channels_max = DUAL_CHANNEL;
 148         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 149                                    &constraints_channels);
 150         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 151                                    &constraints_rates);
 152
 153         machine->i2s_instance = I2S_SP_INSTANCE;
 154         machine->capture_channel = CAP_CHANNEL1;
 155         return da7219_clk_enable(substream);
 156 }
 157
 158 static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 159 {
 160         da7219_clk_disable();
 161 }
 162
 163 static int cz_max_startup(struct snd_pcm_substream *substream)
 164 {
 165         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 166         struct snd_soc_card *card = rtd->card;
 167         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 168
 169         machine->i2s_instance = I2S_BT_INSTANCE;
 170         return da7219_clk_enable(substream);
 171 }
 172
 173 static void cz_max_shutdown(struct snd_pcm_substream *substream)
 174 {
 175         da7219_clk_disable();
 176 }
 177
 178 static int cz_dmic0_startup(struct snd_pcm_substream *substream)
 179 {
 180         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 181         struct snd_soc_card *card = rtd->card;
 182         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 183
 184         machine->i2s_instance = I2S_BT_INSTANCE;
 185         return da7219_clk_enable(substream);
 186 }
 187
 188 static int cz_dmic1_startup(struct snd_pcm_substream *substream)
 189 {
 190         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 191         struct snd_soc_card *card = rtd->card;
 192         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 193
 194         machine->i2s_instance = I2S_SP_INSTANCE;
 195         machine->capture_channel = CAP_CHANNEL0;
 196         return da7219_clk_enable(substream);
 197 }
 198
 199 static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
 200 {
 201         da7219_clk_disable();
 202 }
 203
 204 static const struct snd_soc_ops cz_da7219_cap_ops = {
 205         .startup = cz_da7219_startup,
 206         .shutdown = cz_da7219_shutdown,
 207 };
 208
 209 static const struct snd_soc_ops cz_max_play_ops = {
 210         .startup = cz_max_startup,
 211         .shutdown = cz_max_shutdown,
 212 };
 213
 214 static const struct snd_soc_ops cz_dmic0_cap_ops = {
 215         .startup = cz_dmic0_startup,
 216         .shutdown = cz_dmic_shutdown,
 217 };
 218
 219 static const struct snd_soc_ops cz_dmic1_cap_ops = {
 220         .startup = cz_dmic1_startup,
 221         .shutdown = cz_dmic_shutdown,
 222 };
 223
 224 static struct snd_soc_dai_link cz_dai_7219_98357[] = {
 225         {
 226                 .name = "amd-da7219-play",
 227                 .stream_name = "Playback",
 228                 .platform_name = "acp_audio_dma.0.auto",
 229                 .cpu_dai_name = "designware-i2s.1.auto",
 230                 .codec_dai_name = "da7219-hifi",
 231                 .codec_name = "i2c-DLGS7219:00",
 232                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 233                                 | SND_SOC_DAIFMT_CBM_CFM,
 234                 .init = cz_da7219_init,
 235                 .dpcm_playback = 1,
 236                 .ops = &cz_da7219_cap_ops,
 237         },
 238         {
 239                 .name = "amd-da7219-cap",
 240                 .stream_name = "Capture",
 241                 .platform_name = "acp_audio_dma.0.auto",
 242                 .cpu_dai_name = "designware-i2s.2.auto",
 243                 .codec_dai_name = "da7219-hifi",
 244                 .codec_name = "i2c-DLGS7219:00",
 245                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 246                                 | SND_SOC_DAIFMT_CBM_CFM,
 247                 .dpcm_capture = 1,
 248                 .ops = &cz_da7219_cap_ops,
 249         },
 250         {
 251                 .name = "amd-max98357-play",
 252                 .stream_name = "HiFi Playback",
 253                 .platform_name = "acp_audio_dma.0.auto",
 254                 .cpu_dai_name = "designware-i2s.3.auto",
 255                 .codec_dai_name = "HiFi",
 256                 .codec_name = "MX98357A:00",
 257                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 258                                 | SND_SOC_DAIFMT_CBM_CFM,
 259                 .dpcm_playback = 1,
 260                 .ops = &cz_max_play_ops,
 261         },
 262         {
 263                 /* C panel DMIC */
 264                 .name = "dmic0",
 265                 .stream_name = "DMIC0 Capture",
 266                 .platform_name = "acp_audio_dma.0.auto",
 267                 .cpu_dai_name = "designware-i2s.3.auto",
 268                 .codec_dai_name = "adau7002-hifi",
 269                 .codec_name = "ADAU7002:00",
 270                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 271                                 | SND_SOC_DAIFMT_CBM_CFM,
 272                 .dpcm_capture = 1,
 273                 .ops = &cz_dmic0_cap_ops,
 274         },
 275         {
 276                 /* A/B panel DMIC */
 277                 .name = "dmic1",
 278                 .stream_name = "DMIC1 Capture",
 279                 .platform_name = "acp_audio_dma.0.auto",
 280                 .cpu_dai_name = "designware-i2s.2.auto",
 281                 .codec_dai_name = "adau7002-hifi",
 282                 .codec_name = "ADAU7002:00",
 283                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 284                                 | SND_SOC_DAIFMT_CBM_CFM,
 285                 .dpcm_capture = 1,
 286                 .ops = &cz_dmic1_cap_ops,
 287         },
 288 };
 289
 290 static const struct snd_soc_dapm_widget cz_widgets[] = {
 291         SND_SOC_DAPM_HP("Headphones", NULL),
 292         SND_SOC_DAPM_SPK("Speakers", NULL),
 293         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 294         SND_SOC_DAPM_MIC("Int Mic", NULL),
 295 };
 296
 297 static const struct snd_soc_dapm_route cz_audio_route[] = {
 298         {"Headphones", NULL, "HPL"},
 299         {"Headphones", NULL, "HPR"},
 300         {"MIC", NULL, "Headset Mic"},
 301         {"Speakers", NULL, "Speaker"},
 302         {"PDM_DAT", NULL, "Int Mic"},
 303 };
 304
 305 static const struct snd_kcontrol_new cz_mc_controls[] = {
 306         SOC_DAPM_PIN_SWITCH("Headphones"),
 307         SOC_DAPM_PIN_SWITCH("Speakers"),
 308         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 309         SOC_DAPM_PIN_SWITCH("Int Mic"),
 310 };
 311
 312 static struct snd_soc_card cz_card = {
 313         .name = "acpd7219m98357",
 314         .owner = THIS_MODULE,
 315         .dai_link = cz_dai_7219_98357,
 316         .num_links = ARRAY_SIZE(cz_dai_7219_98357),
 317         .dapm_widgets = cz_widgets,
 318         .num_dapm_widgets = ARRAY_SIZE(cz_widgets),
 319         .dapm_routes = cz_audio_route,
 320         .num_dapm_routes = ARRAY_SIZE(cz_audio_route),
 321         .controls = cz_mc_controls,
 322         .num_controls = ARRAY_SIZE(cz_mc_controls),
 323 };
 324
 325 static struct regulator_consumer_supply acp_da7219_supplies[] = {
 326         REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
 327         REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
 328         REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
 329         REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
 330 };
 331
 332 static struct regulator_init_data acp_da7219_data = {
 333         .constraints = {
 334                 .always_on = 1,
 335         },
 336         .num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
 337         .consumer_supplies = acp_da7219_supplies,
 338 };
 339
 340 static struct regulator_config acp_da7219_cfg = {
 341         .init_data = &acp_da7219_data,
 342 };
 343
 344 static struct regulator_ops acp_da7219_ops = {
 345 };
 346
 347 static struct regulator_desc acp_da7219_desc = {
 348         .name = "reg-fixed-1.8V",
 349         .type = REGULATOR_VOLTAGE,
 350         .owner = THIS_MODULE,
 351         .ops = &acp_da7219_ops,
 352         .fixed_uV = 1800000, /* 1.8V */
 353         .n_voltages = 1,
 354 };
 355
 356 static int cz_probe(struct platform_device *pdev)
 357 {
 358         int ret;
 359         struct snd_soc_card *card;
 360         struct acp_platform_info *machine;
 361         struct regulator_dev *rdev;
 362
 363         acp_da7219_cfg.dev = &pdev->dev;
 364         rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
 365                                        &acp_da7219_cfg);
 366         if (IS_ERR(rdev)) {
 367                 dev_err(&pdev->dev, "Failed to register regulator: %d\n",
 368                         (int)PTR_ERR(rdev));
 369                 return -EINVAL;
 370         }
 371
 372         machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
 373                                GFP_KERNEL);
 374         if (!machine)
 375                 return -ENOMEM;
 376         card = &cz_card;
 377         cz_card.dev = &pdev->dev;
 378         platform_set_drvdata(pdev, card);
 379         snd_soc_card_set_drvdata(card, machine);
 380         ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
 381         if (ret) {
 382                 dev_err(&pdev->dev,
 383                                 "devm_snd_soc_register_card(%s) failed: %d\n",
 384                                 cz_card.name, ret);
 385                 return ret;
 386         }
 387         bt_uart_enable = !device_property_read_bool(&pdev->dev,
 388                                                     "bt-pad-enable");
 389         return 0;
 390 }
 391
 392 static const struct acpi_device_id cz_audio_acpi_match[] = {
 393         { "AMD7219", 0 },
 394         {},
 395 };
 396 MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
 397
 398 static struct platform_driver cz_pcm_driver = {
 399         .driver = {
 400                 .name = "cz-da7219-max98357a",
 401                 .acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
 402                 .pm = &snd_soc_pm_ops,
 403         },
 404         .probe = cz_probe,
 405 };
 406
 407 module_platform_driver(cz_pcm_driver);
 408
 409 MODULE_AUTHOR("akshu.agrawal@amd.com");
 410 MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
 411 MODULE_LICENSE("GPL v2");