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