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_wclk;
  50 static struct clk *da7219_dai_bclk;
  51 extern bool bt_uart_enable;
  52
  53 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
  54 {
  55         int ret;
  56         struct snd_soc_card *card = rtd->card;
  57         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  58         struct snd_soc_component *component = codec_dai->component;
  59
  60         dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
  61
  62         ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
  63                                      CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
  64         if (ret < 0) {
  65                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
  66                 return ret;
  67         }
  68
  69         ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
  70                                   CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
  71         if (ret < 0) {
  72                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
  73                 return ret;
  74         }
  75
  76         da7219_dai_wclk = devm_clk_get(component->dev, "da7219-dai-wclk");
  77         if (IS_ERR(da7219_dai_wclk))
  78                 return PTR_ERR(da7219_dai_wclk);
  79
  80         da7219_dai_bclk = devm_clk_get(component->dev, "da7219-dai-bclk");
  81         if (IS_ERR(da7219_dai_bclk))
  82                 return PTR_ERR(da7219_dai_bclk);
  83
  84         ret = snd_soc_card_jack_new(card, "Headset Jack",
  85                                 SND_JACK_HEADSET | SND_JACK_LINEOUT |
  86                                 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
  87                                 SND_JACK_BTN_2 | SND_JACK_BTN_3,
  88                                 &cz_jack, NULL, 0);
  89         if (ret) {
  90                 dev_err(card->dev, "HP jack creation failed %d\n", ret);
  91                 return ret;
  92         }
  93
  94         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  95         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
  96         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
  97         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
  98
  99         da7219_aad_jack_det(component, &cz_jack);
 100
 101         return 0;
 102 }
 103
 104 static int da7219_clk_enable(struct snd_pcm_substream *substream)
 105 {
 106         int ret = 0;
 107         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 108
 109         /*
 110          * Set wclk to 48000 because the rate constraint of this driver is
 111          * 48000. ADAU7002 spec: "The ADAU7002 requires a BCLK rate that is
 112          * minimum of 64x the LRCLK sample rate." DA7219 is the only clk
 113          * source so for all codecs we have to limit bclk to 64X lrclk.
 114          */
 115         clk_set_rate(da7219_dai_wclk, 48000);
 116         clk_set_rate(da7219_dai_bclk, 48000 * 64);
 117         ret = clk_prepare_enable(da7219_dai_bclk);
 118         if (ret < 0) {
 119                 dev_err(rtd->dev, "can't enable master clock %d\n", ret);
 120                 return ret;
 121         }
 122
 123         return ret;
 124 }
 125
 126 static void da7219_clk_disable(void)
 127 {
 128         clk_disable_unprepare(da7219_dai_bclk);
 129 }
 130
 131 static const unsigned int channels[] = {
 132         DUAL_CHANNEL,
 133 };
 134
 135 static const unsigned int rates[] = {
 136         48000,
 137 };
 138
 139 static const struct snd_pcm_hw_constraint_list constraints_rates = {
 140         .count = ARRAY_SIZE(rates),
 141         .list  = rates,
 142         .mask = 0,
 143 };
 144
 145 static const struct snd_pcm_hw_constraint_list constraints_channels = {
 146         .count = ARRAY_SIZE(channels),
 147         .list = channels,
 148         .mask = 0,
 149 };
 150
 151 static int cz_da7219_play_startup(struct snd_pcm_substream *substream)
 152 {
 153         struct snd_pcm_runtime *runtime = substream->runtime;
 154         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 155         struct snd_soc_card *card = rtd->card;
 156         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 157
 158         /*
 159          * On this platform for PCM device we support stereo
 160          */
 161
 162         runtime->hw.channels_max = DUAL_CHANNEL;
 163         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 164                                    &constraints_channels);
 165         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 166                                    &constraints_rates);
 167
 168         machine->play_i2s_instance = I2S_SP_INSTANCE;
 169         return da7219_clk_enable(substream);
 170 }
 171
 172 static int cz_da7219_cap_startup(struct snd_pcm_substream *substream)
 173 {
 174         struct snd_pcm_runtime *runtime = substream->runtime;
 175         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 176         struct snd_soc_card *card = rtd->card;
 177         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 178
 179         /*
 180          * On this platform for PCM device we support stereo
 181          */
 182
 183         runtime->hw.channels_max = DUAL_CHANNEL;
 184         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 185                                    &constraints_channels);
 186         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 187                                    &constraints_rates);
 188
 189         machine->cap_i2s_instance = I2S_SP_INSTANCE;
 190         machine->capture_channel = CAP_CHANNEL1;
 191         return da7219_clk_enable(substream);
 192 }
 193
 194 static int cz_max_startup(struct snd_pcm_substream *substream)
 195 {
 196         struct snd_pcm_runtime *runtime = substream->runtime;
 197         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 198         struct snd_soc_card *card = rtd->card;
 199         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 200
 201         /*
 202          * On this platform for PCM device we support stereo
 203          */
 204
 205         runtime->hw.channels_max = DUAL_CHANNEL;
 206         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 207                                    &constraints_channels);
 208         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 209                                    &constraints_rates);
 210
 211         machine->play_i2s_instance = I2S_BT_INSTANCE;
 212         return da7219_clk_enable(substream);
 213 }
 214
 215 static int cz_dmic0_startup(struct snd_pcm_substream *substream)
 216 {
 217         struct snd_pcm_runtime *runtime = substream->runtime;
 218         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 219         struct snd_soc_card *card = rtd->card;
 220         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 221
 222         /*
 223          * On this platform for PCM device we support stereo
 224          */
 225
 226         runtime->hw.channels_max = DUAL_CHANNEL;
 227         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 228                                    &constraints_channels);
 229         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 230                                    &constraints_rates);
 231
 232         machine->cap_i2s_instance = I2S_BT_INSTANCE;
 233         return da7219_clk_enable(substream);
 234 }
 235
 236 static int cz_dmic1_startup(struct snd_pcm_substream *substream)
 237 {
 238         struct snd_pcm_runtime *runtime = substream->runtime;
 239         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 240         struct snd_soc_card *card = rtd->card;
 241         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 242
 243         /*
 244          * On this platform for PCM device we support stereo
 245          */
 246
 247         runtime->hw.channels_max = DUAL_CHANNEL;
 248         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 249                                    &constraints_channels);
 250         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 251                                    &constraints_rates);
 252
 253         machine->cap_i2s_instance = I2S_SP_INSTANCE;
 254         machine->capture_channel = CAP_CHANNEL0;
 255         return da7219_clk_enable(substream);
 256 }
 257
 258 static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 259 {
 260         da7219_clk_disable();
 261 }
 262
 263 static const struct snd_soc_ops cz_da7219_play_ops = {
 264         .startup = cz_da7219_play_startup,
 265         .shutdown = cz_da7219_shutdown,
 266 };
 267
 268 static const struct snd_soc_ops cz_da7219_cap_ops = {
 269         .startup = cz_da7219_cap_startup,
 270         .shutdown = cz_da7219_shutdown,
 271 };
 272
 273 static const struct snd_soc_ops cz_max_play_ops = {
 274         .startup = cz_max_startup,
 275         .shutdown = cz_da7219_shutdown,
 276 };
 277
 278 static const struct snd_soc_ops cz_dmic0_cap_ops = {
 279         .startup = cz_dmic0_startup,
 280         .shutdown = cz_da7219_shutdown,
 281 };
 282
 283 static const struct snd_soc_ops cz_dmic1_cap_ops = {
 284         .startup = cz_dmic1_startup,
 285         .shutdown = cz_da7219_shutdown,
 286 };
 287
 288 SND_SOC_DAILINK_DEF(designware1,
 289         DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.1.auto")));
 290 SND_SOC_DAILINK_DEF(designware2,
 291         DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.2.auto")));
 292 SND_SOC_DAILINK_DEF(designware3,
 293         DAILINK_COMP_ARRAY(COMP_CPU("designware-i2s.3.auto")));
 294
 295 SND_SOC_DAILINK_DEF(dlgs,
 296         DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7219:00", "da7219-hifi")));
 297 SND_SOC_DAILINK_DEF(mx,
 298         DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", "HiFi")));
 299 SND_SOC_DAILINK_DEF(adau,
 300         DAILINK_COMP_ARRAY(COMP_CODEC("ADAU7002:00", "adau7002-hifi")));
 301
 302 SND_SOC_DAILINK_DEF(platform,
 303         DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_audio_dma.0.auto")));
 304
 305 static struct snd_soc_dai_link cz_dai_7219_98357[] = {
 306         {
 307                 .name = "amd-da7219-play",
 308                 .stream_name = "Playback",
 309                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 310                                 | SND_SOC_DAIFMT_CBM_CFM,
 311                 .init = cz_da7219_init,
 312                 .dpcm_playback = 1,
 313                 .ops = &cz_da7219_play_ops,
 314                 SND_SOC_DAILINK_REG(designware1, dlgs, platform),
 315         },
 316         {
 317                 .name = "amd-da7219-cap",
 318                 .stream_name = "Capture",
 319                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 320                                 | SND_SOC_DAIFMT_CBM_CFM,
 321                 .dpcm_capture = 1,
 322                 .ops = &cz_da7219_cap_ops,
 323                 SND_SOC_DAILINK_REG(designware2, dlgs, platform),
 324         },
 325         {
 326                 .name = "amd-max98357-play",
 327                 .stream_name = "HiFi Playback",
 328                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 329                                 | SND_SOC_DAIFMT_CBM_CFM,
 330                 .dpcm_playback = 1,
 331                 .ops = &cz_max_play_ops,
 332                 SND_SOC_DAILINK_REG(designware3, mx, platform),
 333         },
 334         {
 335                 /* C panel DMIC */
 336                 .name = "dmic0",
 337                 .stream_name = "DMIC0 Capture",
 338                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 339                                 | SND_SOC_DAIFMT_CBM_CFM,
 340                 .dpcm_capture = 1,
 341                 .ops = &cz_dmic0_cap_ops,
 342                 SND_SOC_DAILINK_REG(designware3, adau, platform),
 343         },
 344         {
 345                 /* A/B panel DMIC */
 346                 .name = "dmic1",
 347                 .stream_name = "DMIC1 Capture",
 348                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 349                                 | SND_SOC_DAIFMT_CBM_CFM,
 350                 .dpcm_capture = 1,
 351                 .ops = &cz_dmic1_cap_ops,
 352                 SND_SOC_DAILINK_REG(designware2, adau, platform),
 353         },
 354 };
 355
 356 static const struct snd_soc_dapm_widget cz_widgets[] = {
 357         SND_SOC_DAPM_HP("Headphones", NULL),
 358         SND_SOC_DAPM_SPK("Speakers", NULL),
 359         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 360         SND_SOC_DAPM_MIC("Int Mic", NULL),
 361 };
 362
 363 static const struct snd_soc_dapm_route cz_audio_route[] = {
 364         {"Headphones", NULL, "HPL"},
 365         {"Headphones", NULL, "HPR"},
 366         {"MIC", NULL, "Headset Mic"},
 367         {"Speakers", NULL, "Speaker"},
 368         {"PDM_DAT", NULL, "Int Mic"},
 369 };
 370
 371 static const struct snd_kcontrol_new cz_mc_controls[] = {
 372         SOC_DAPM_PIN_SWITCH("Headphones"),
 373         SOC_DAPM_PIN_SWITCH("Speakers"),
 374         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 375         SOC_DAPM_PIN_SWITCH("Int Mic"),
 376 };
 377
 378 static struct snd_soc_card cz_card = {
 379         .name = "acpd7219m98357",
 380         .owner = THIS_MODULE,
 381         .dai_link = cz_dai_7219_98357,
 382         .num_links = ARRAY_SIZE(cz_dai_7219_98357),
 383         .dapm_widgets = cz_widgets,
 384         .num_dapm_widgets = ARRAY_SIZE(cz_widgets),
 385         .dapm_routes = cz_audio_route,
 386         .num_dapm_routes = ARRAY_SIZE(cz_audio_route),
 387         .controls = cz_mc_controls,
 388         .num_controls = ARRAY_SIZE(cz_mc_controls),
 389 };
 390
 391 static struct regulator_consumer_supply acp_da7219_supplies[] = {
 392         REGULATOR_SUPPLY("VDD", "i2c-DLGS7219:00"),
 393         REGULATOR_SUPPLY("VDDMIC", "i2c-DLGS7219:00"),
 394         REGULATOR_SUPPLY("VDDIO", "i2c-DLGS7219:00"),
 395         REGULATOR_SUPPLY("IOVDD", "ADAU7002:00"),
 396 };
 397
 398 static struct regulator_init_data acp_da7219_data = {
 399         .constraints = {
 400                 .always_on = 1,
 401         },
 402         .num_consumer_supplies = ARRAY_SIZE(acp_da7219_supplies),
 403         .consumer_supplies = acp_da7219_supplies,
 404 };
 405
 406 static struct regulator_config acp_da7219_cfg = {
 407         .init_data = &acp_da7219_data,
 408 };
 409
 410 static struct regulator_ops acp_da7219_ops = {
 411 };
 412
 413 static const struct regulator_desc acp_da7219_desc = {
 414         .name = "reg-fixed-1.8V",
 415         .type = REGULATOR_VOLTAGE,
 416         .owner = THIS_MODULE,
 417         .ops = &acp_da7219_ops,
 418         .fixed_uV = 1800000, /* 1.8V */
 419         .n_voltages = 1,
 420 };
 421
 422 static int cz_probe(struct platform_device *pdev)
 423 {
 424         int ret;
 425         struct snd_soc_card *card;
 426         struct acp_platform_info *machine;
 427         struct regulator_dev *rdev;
 428
 429         acp_da7219_cfg.dev = &pdev->dev;
 430         rdev = devm_regulator_register(&pdev->dev, &acp_da7219_desc,
 431                                        &acp_da7219_cfg);
 432         if (IS_ERR(rdev)) {
 433                 dev_err(&pdev->dev, "Failed to register regulator: %d\n",
 434                         (int)PTR_ERR(rdev));
 435                 return -EINVAL;
 436         }
 437
 438         machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
 439                                GFP_KERNEL);
 440         if (!machine)
 441                 return -ENOMEM;
 442         card = &cz_card;
 443         cz_card.dev = &pdev->dev;
 444         platform_set_drvdata(pdev, card);
 445         snd_soc_card_set_drvdata(card, machine);
 446         ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
 447         if (ret) {
 448                 dev_err(&pdev->dev,
 449                                 "devm_snd_soc_register_card(%s) failed: %d\n",
 450                                 cz_card.name, ret);
 451                 return ret;
 452         }
 453         bt_uart_enable = !device_property_read_bool(&pdev->dev,
 454                                                     "bt-pad-enable");
 455         return 0;
 456 }
 457
 458 #ifdef CONFIG_ACPI
 459 static const struct acpi_device_id cz_audio_acpi_match[] = {
 460         { "AMD7219", 0 },
 461         {},
 462 };
 463 MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
 464 #endif
 465
 466 static struct platform_driver cz_pcm_driver = {
 467         .driver = {
 468                 .name = "cz-da7219-max98357a",
 469                 .acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
 470                 .pm = &snd_soc_pm_ops,
 471         },
 472         .probe = cz_probe,
 473 };
 474
 475 module_platform_driver(cz_pcm_driver);
 476
 477 MODULE_AUTHOR("akshu.agrawal@amd.com");
 478 MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
 479 MODULE_LICENSE("GPL v2");