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/i2c.h>
  36 #include <linux/input.h>
  37 #include <linux/acpi.h>
  38
  39 #include "acp.h"
  40 #include "../codecs/da7219.h"
  41 #include "../codecs/da7219-aad.h"
  42
  43 #define CZ_PLAT_CLK 25000000
  44 #define DUAL_CHANNEL            2
  45
  46 static struct snd_soc_jack cz_jack;
  47 static struct clk *da7219_dai_clk;
  48 extern int bt_uart_enable;
  49
  50 static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
  51 {
  52         int ret;
  53         struct snd_soc_card *card = rtd->card;
  54         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  55         struct snd_soc_component *component = codec_dai->component;
  56
  57         dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
  58
  59         ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK,
  60                                      CZ_PLAT_CLK, SND_SOC_CLOCK_IN);
  61         if (ret < 0) {
  62                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
  63                 return ret;
  64         }
  65
  66         ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL,
  67                                   CZ_PLAT_CLK, DA7219_PLL_FREQ_OUT_98304);
  68         if (ret < 0) {
  69                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
  70                 return ret;
  71         }
  72
  73         da7219_dai_clk = clk_get(component->dev, "da7219-dai-clks");
  74
  75         ret = snd_soc_card_jack_new(card, "Headset Jack",
  76                                 SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
  77                                 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
  78                                 SND_JACK_BTN_2 | SND_JACK_BTN_3,
  79                                 &cz_jack, NULL, 0);
  80         if (ret) {
  81                 dev_err(card->dev, "HP jack creation failed %d\n", ret);
  82                 return ret;
  83         }
  84
  85         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
  86         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
  87         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
  88         snd_jack_set_key(cz_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
  89
  90         da7219_aad_jack_det(component, &cz_jack);
  91
  92         return 0;
  93 }
  94
  95 static int da7219_clk_enable(struct snd_pcm_substream *substream)
  96 {
  97         int ret = 0;
  98         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  99
 100         ret = clk_prepare_enable(da7219_dai_clk);
 101         if (ret < 0) {
 102                 dev_err(rtd->dev, "can't enable master clock %d\n", ret);
 103                 return ret;
 104         }
 105
 106         return ret;
 107 }
 108
 109 static void da7219_clk_disable(void)
 110 {
 111         clk_disable_unprepare(da7219_dai_clk);
 112 }
 113
 114 static const unsigned int channels[] = {
 115         DUAL_CHANNEL,
 116 };
 117
 118 static const unsigned int rates[] = {
 119         48000,
 120 };
 121
 122 static const struct snd_pcm_hw_constraint_list constraints_rates = {
 123         .count = ARRAY_SIZE(rates),
 124         .list  = rates,
 125         .mask = 0,
 126 };
 127
 128 static const struct snd_pcm_hw_constraint_list constraints_channels = {
 129         .count = ARRAY_SIZE(channels),
 130         .list = channels,
 131         .mask = 0,
 132 };
 133
 134 static int cz_da7219_startup(struct snd_pcm_substream *substream)
 135 {
 136         struct snd_pcm_runtime *runtime = substream->runtime;
 137         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 138         struct snd_soc_card *card = rtd->card;
 139         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 140
 141         /*
 142          * On this platform for PCM device we support stereo
 143          */
 144
 145         runtime->hw.channels_max = DUAL_CHANNEL;
 146         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 147                                    &constraints_channels);
 148         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 149                                    &constraints_rates);
 150
 151         machine->i2s_instance = I2S_SP_INSTANCE;
 152         machine->capture_channel = CAP_CHANNEL1;
 153         return da7219_clk_enable(substream);
 154 }
 155
 156 static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
 157 {
 158         da7219_clk_disable();
 159 }
 160
 161 static int cz_max_startup(struct snd_pcm_substream *substream)
 162 {
 163         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 164         struct snd_soc_card *card = rtd->card;
 165         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 166
 167         machine->i2s_instance = I2S_BT_INSTANCE;
 168         return da7219_clk_enable(substream);
 169 }
 170
 171 static void cz_max_shutdown(struct snd_pcm_substream *substream)
 172 {
 173         da7219_clk_disable();
 174 }
 175
 176 static int cz_dmic0_startup(struct snd_pcm_substream *substream)
 177 {
 178         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 179         struct snd_soc_card *card = rtd->card;
 180         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 181
 182         machine->i2s_instance = I2S_BT_INSTANCE;
 183         return da7219_clk_enable(substream);
 184 }
 185
 186 static int cz_dmic1_startup(struct snd_pcm_substream *substream)
 187 {
 188         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 189         struct snd_soc_card *card = rtd->card;
 190         struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
 191
 192         machine->i2s_instance = I2S_SP_INSTANCE;
 193         machine->capture_channel = CAP_CHANNEL0;
 194         return da7219_clk_enable(substream);
 195 }
 196
 197 static void cz_dmic_shutdown(struct snd_pcm_substream *substream)
 198 {
 199         da7219_clk_disable();
 200 }
 201
 202 static const struct snd_soc_ops cz_da7219_cap_ops = {
 203         .startup = cz_da7219_startup,
 204         .shutdown = cz_da7219_shutdown,
 205 };
 206
 207 static const struct snd_soc_ops cz_max_play_ops = {
 208         .startup = cz_max_startup,
 209         .shutdown = cz_max_shutdown,
 210 };
 211
 212 static const struct snd_soc_ops cz_dmic0_cap_ops = {
 213         .startup = cz_dmic0_startup,
 214         .shutdown = cz_dmic_shutdown,
 215 };
 216
 217 static const struct snd_soc_ops cz_dmic1_cap_ops = {
 218         .startup = cz_dmic1_startup,
 219         .shutdown = cz_dmic_shutdown,
 220 };
 221
 222 static struct snd_soc_dai_link cz_dai_7219_98357[] = {
 223         {
 224                 .name = "amd-da7219-play",
 225                 .stream_name = "Playback",
 226                 .platform_name = "acp_audio_dma.0.auto",
 227                 .cpu_dai_name = "designware-i2s.1.auto",
 228                 .codec_dai_name = "da7219-hifi",
 229                 .codec_name = "i2c-DLGS7219:00",
 230                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 231                                 | SND_SOC_DAIFMT_CBM_CFM,
 232                 .init = cz_da7219_init,
 233                 .dpcm_playback = 1,
 234                 .ops = &cz_da7219_cap_ops,
 235         },
 236         {
 237                 .name = "amd-da7219-cap",
 238                 .stream_name = "Capture",
 239                 .platform_name = "acp_audio_dma.0.auto",
 240                 .cpu_dai_name = "designware-i2s.2.auto",
 241                 .codec_dai_name = "da7219-hifi",
 242                 .codec_name = "i2c-DLGS7219:00",
 243                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 244                                 | SND_SOC_DAIFMT_CBM_CFM,
 245                 .dpcm_capture = 1,
 246                 .ops = &cz_da7219_cap_ops,
 247         },
 248         {
 249                 .name = "amd-max98357-play",
 250                 .stream_name = "HiFi Playback",
 251                 .platform_name = "acp_audio_dma.0.auto",
 252                 .cpu_dai_name = "designware-i2s.3.auto",
 253                 .codec_dai_name = "HiFi",
 254                 .codec_name = "MX98357A:00",
 255                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 256                                 | SND_SOC_DAIFMT_CBM_CFM,
 257                 .dpcm_playback = 1,
 258                 .ops = &cz_max_play_ops,
 259         },
 260         {
 261                 /* C panel DMIC */
 262                 .name = "dmic0",
 263                 .stream_name = "DMIC0 Capture",
 264                 .platform_name = "acp_audio_dma.0.auto",
 265                 .cpu_dai_name = "designware-i2s.3.auto",
 266                 .codec_dai_name = "adau7002-hifi",
 267                 .codec_name = "ADAU7002:00",
 268                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 269                                 | SND_SOC_DAIFMT_CBM_CFM,
 270                 .dpcm_capture = 1,
 271                 .ops = &cz_dmic0_cap_ops,
 272         },
 273         {
 274                 /* A/B panel DMIC */
 275                 .name = "dmic1",
 276                 .stream_name = "DMIC1 Capture",
 277                 .platform_name = "acp_audio_dma.0.auto",
 278                 .cpu_dai_name = "designware-i2s.2.auto",
 279                 .codec_dai_name = "adau7002-hifi",
 280                 .codec_name = "ADAU7002:00",
 281                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 282                                 | SND_SOC_DAIFMT_CBM_CFM,
 283                 .dpcm_capture = 1,
 284                 .ops = &cz_dmic1_cap_ops,
 285         },
 286 };
 287
 288 static const struct snd_soc_dapm_widget cz_widgets[] = {
 289         SND_SOC_DAPM_HP("Headphones", NULL),
 290         SND_SOC_DAPM_SPK("Speakers", NULL),
 291         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 292         SND_SOC_DAPM_MIC("Int Mic", NULL),
 293 };
 294
 295 static const struct snd_soc_dapm_route cz_audio_route[] = {
 296         {"Headphones", NULL, "HPL"},
 297         {"Headphones", NULL, "HPR"},
 298         {"MIC", NULL, "Headset Mic"},
 299         {"Speakers", NULL, "Speaker"},
 300         {"PDM_DAT", NULL, "Int Mic"},
 301 };
 302
 303 static const struct snd_kcontrol_new cz_mc_controls[] = {
 304         SOC_DAPM_PIN_SWITCH("Headphones"),
 305         SOC_DAPM_PIN_SWITCH("Speakers"),
 306         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 307         SOC_DAPM_PIN_SWITCH("Int Mic"),
 308 };
 309
 310 static struct snd_soc_card cz_card = {
 311         .name = "acpd7219m98357",
 312         .owner = THIS_MODULE,
 313         .dai_link = cz_dai_7219_98357,
 314         .num_links = ARRAY_SIZE(cz_dai_7219_98357),
 315         .dapm_widgets = cz_widgets,
 316         .num_dapm_widgets = ARRAY_SIZE(cz_widgets),
 317         .dapm_routes = cz_audio_route,
 318         .num_dapm_routes = ARRAY_SIZE(cz_audio_route),
 319         .controls = cz_mc_controls,
 320         .num_controls = ARRAY_SIZE(cz_mc_controls),
 321 };
 322
 323 static int cz_probe(struct platform_device *pdev)
 324 {
 325         int ret;
 326         struct snd_soc_card *card;
 327         struct acp_platform_info *machine;
 328
 329         machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
 330                                GFP_KERNEL);
 331         if (!machine)
 332                 return -ENOMEM;
 333         card = &cz_card;
 334         cz_card.dev = &pdev->dev;
 335         platform_set_drvdata(pdev, card);
 336         snd_soc_card_set_drvdata(card, machine);
 337         ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
 338         if (ret) {
 339                 dev_err(&pdev->dev,
 340                                 "devm_snd_soc_register_card(%s) failed: %d\n",
 341                                 cz_card.name, ret);
 342                 return ret;
 343         }
 344         bt_uart_enable = !device_property_read_bool(&pdev->dev,
 345                                                     "bt-pad-enable");
 346         return 0;
 347 }
 348
 349 static const struct acpi_device_id cz_audio_acpi_match[] = {
 350         { "AMD7219", 0 },
 351         {},
 352 };
 353 MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
 354
 355 static struct platform_driver cz_pcm_driver = {
 356         .driver = {
 357                 .name = "cz-da7219-max98357a",
 358                 .acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
 359                 .pm = &snd_soc_pm_ops,
 360         },
 361         .probe = cz_probe,
 362 };
 363
 364 module_platform_driver(cz_pcm_driver);
 365
 366 MODULE_AUTHOR("akshu.agrawal@amd.com");
 367 MODULE_DESCRIPTION("DA7219 & MAX98357A audio support");
 368 MODULE_LICENSE("GPL v2");