1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Machine driver for AMD Vangogh platform using NAU8821 & CS35L41 4 * codecs. 5 * 6 * Copyright 2021 Advanced Micro Devices, Inc. 7 */ 8 9 #include <sound/soc.h> 10 #include <sound/soc-dapm.h> 11 #include <linux/module.h> 12 #include <linux/io.h> 13 #include <sound/pcm.h> 14 #include <sound/pcm_params.h> 15 16 #include <sound/jack.h> 17 #include <linux/clk.h> 18 #include <linux/gpio.h> 19 #include <linux/gpio/consumer.h> 20 #include <linux/module.h> 21 #include <linux/i2c.h> 22 #include <linux/input.h> 23 #include <linux/io.h> 24 #include <linux/acpi.h> 25 #include <linux/dmi.h> 26 27 #include "../../codecs/nau8821.h" 28 #include "../../codecs/cs35l41.h" 29 30 #include "acp5x.h" 31 32 #define DRV_NAME "acp5x_mach" 33 #define DUAL_CHANNEL 2 34 #define ACP5X_NUVOTON_CODEC_DAI "nau8821-hifi" 35 #define VG_JUPITER 1 36 37 static unsigned long acp5x_machine_id; 38 static struct snd_soc_jack vg_headset; 39 40 static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = { 41 { 42 .pin = "Headphone", 43 .mask = SND_JACK_HEADPHONE, 44 }, 45 { 46 .pin = "Headset Mic", 47 .mask = SND_JACK_MICROPHONE, 48 }, 49 }; 50 51 static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd) 52 { 53 int ret; 54 struct snd_soc_card *card = rtd->card; 55 struct snd_soc_component *component = 56 asoc_rtd_to_codec(rtd, 0)->component; 57 58 /* 59 * Headset buttons map to the google Reference headset. 60 * These can be configured by userspace. 61 */ 62 ret = snd_soc_card_jack_new(card, "Headset Jack", 63 SND_JACK_HEADSET | SND_JACK_BTN_0, 64 &vg_headset, acp5x_nau8821_jack_pins, 65 ARRAY_SIZE(acp5x_nau8821_jack_pins)); 66 if (ret) { 67 dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret); 68 return ret; 69 } 70 71 snd_jack_set_key(vg_headset.jack, SND_JACK_BTN_0, KEY_MEDIA); 72 nau8821_enable_jack_detect(component, &vg_headset); 73 return ret; 74 } 75 76 static int acp5x_cs35l41_init(struct snd_soc_pcm_runtime *rtd) 77 { 78 return 0; 79 } 80 81 static const unsigned int rates[] = { 82 48000, 83 }; 84 85 static const struct snd_pcm_hw_constraint_list constraints_rates = { 86 .count = ARRAY_SIZE(rates), 87 .list = rates, 88 .mask = 0, 89 }; 90 91 static const unsigned int channels[] = { 92 2, 93 }; 94 95 static const struct snd_pcm_hw_constraint_list constraints_channels = { 96 .count = ARRAY_SIZE(channels), 97 .list = channels, 98 .mask = 0, 99 }; 100 101 static int acp5x_8821_startup(struct snd_pcm_substream *substream) 102 { 103 struct snd_pcm_runtime *runtime = substream->runtime; 104 struct snd_soc_pcm_runtime *rtd = substream->private_data; 105 struct snd_soc_card *card = rtd->card; 106 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card); 107 108 machine->play_i2s_instance = I2S_SP_INSTANCE; 109 machine->cap_i2s_instance = I2S_SP_INSTANCE; 110 111 runtime->hw.channels_max = DUAL_CHANNEL; 112 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 113 &constraints_channels); 114 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 115 &constraints_rates); 116 return 0; 117 } 118 119 static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream, 120 struct snd_pcm_hw_params *params) 121 { 122 struct snd_soc_pcm_runtime *rtd = substream->private_data; 123 struct snd_soc_card *card = rtd->card; 124 struct snd_soc_dai *codec_dai = 125 snd_soc_card_get_codec_dai(card, 126 ACP5X_NUVOTON_CODEC_DAI); 127 int ret; 128 129 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_FLL_BLK, 0, 130 SND_SOC_CLOCK_IN); 131 if (ret < 0) 132 dev_err(card->dev, "can't set FS clock %d\n", ret); 133 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, snd_soc_params_to_bclk(params), 134 params_rate(params) * 256); 135 if (ret < 0) 136 dev_err(card->dev, "can't set FLL: %d\n", ret); 137 138 return ret; 139 } 140 141 static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream) 142 { 143 struct snd_pcm_runtime *runtime = substream->runtime; 144 struct snd_soc_pcm_runtime *rtd = substream->private_data; 145 struct snd_soc_card *card = rtd->card; 146 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card); 147 148 machine->play_i2s_instance = I2S_HS_INSTANCE; 149 150 runtime->hw.channels_max = DUAL_CHANNEL; 151 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 152 &constraints_channels); 153 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 154 &constraints_rates); 155 return 0; 156 } 157 158 static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream, 159 struct snd_pcm_hw_params *params) 160 { 161 struct snd_soc_pcm_runtime *rtd = substream->private_data; 162 struct snd_soc_card *card = rtd->card; 163 struct snd_soc_dai *codec_dai; 164 int ret, i; 165 unsigned int num_codecs = rtd->num_codecs; 166 unsigned int bclk_val; 167 168 for (i = 0; i < num_codecs; i++) { 169 codec_dai = asoc_rtd_to_codec(rtd, i); 170 if ((strcmp(codec_dai->name, "spi-VLV1776:00") == 0) || 171 (strcmp(codec_dai->name, "spi-VLV1776:01") == 0)) { 172 switch (params_rate(params)) { 173 case 48000: 174 bclk_val = 1536000; 175 break; 176 default: 177 dev_err(card->dev, "Invalid Samplerate:0x%x\n", 178 params_rate(params)); 179 return -EINVAL; 180 } 181 ret = snd_soc_component_set_sysclk(codec_dai->component, 182 0, 0, bclk_val, SND_SOC_CLOCK_IN); 183 if (ret < 0) { 184 dev_err(card->dev, "failed to set sysclk for CS35l41 dai\n"); 185 return ret; 186 } 187 } 188 } 189 190 return ret; 191 } 192 193 static const struct snd_soc_ops acp5x_8821_ops = { 194 .startup = acp5x_8821_startup, 195 .hw_params = acp5x_nau8821_hw_params, 196 }; 197 198 static const struct snd_soc_ops acp5x_cs35l41_play_ops = { 199 .startup = acp5x_cs35l41_startup, 200 .hw_params = acp5x_cs35l41_hw_params, 201 }; 202 203 static struct snd_soc_codec_conf cs35l41_conf[] = { 204 { 205 .dlc = COMP_CODEC_CONF("spi-VLV1776:00"), 206 .name_prefix = "Left", 207 }, 208 { 209 .dlc = COMP_CODEC_CONF("spi-VLV1776:01"), 210 .name_prefix = "Right", 211 }, 212 }; 213 214 SND_SOC_DAILINK_DEF(acp5x_i2s, 215 DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0"))); 216 217 SND_SOC_DAILINK_DEF(acp5x_bt, 218 DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1"))); 219 220 SND_SOC_DAILINK_DEF(nau8821, 221 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-NVTN2020:00", 222 "nau8821-hifi"))); 223 224 SND_SOC_DAILINK_DEF(cs35l41, 225 DAILINK_COMP_ARRAY(COMP_CODEC("spi-VLV1776:00", "cs35l41-pcm"), 226 COMP_CODEC("spi-VLV1776:01", "cs35l41-pcm"))); 227 228 SND_SOC_DAILINK_DEF(platform, 229 DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0"))); 230 231 static struct snd_soc_dai_link acp5x_dai[] = { 232 { 233 .name = "acp5x-8821-play", 234 .stream_name = "Playback/Capture", 235 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 236 SND_SOC_DAIFMT_CBC_CFC, 237 .dpcm_playback = 1, 238 .dpcm_capture = 1, 239 .ops = &acp5x_8821_ops, 240 .init = acp5x_8821_init, 241 SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform), 242 }, 243 { 244 .name = "acp5x-CS35L41-Stereo", 245 .stream_name = "CS35L41 Stereo Playback", 246 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 247 SND_SOC_DAIFMT_CBC_CFC, 248 .dpcm_playback = 1, 249 .playback_only = 1, 250 .ops = &acp5x_cs35l41_play_ops, 251 .init = acp5x_cs35l41_init, 252 SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform), 253 }, 254 }; 255 256 static int platform_clock_control(struct snd_soc_dapm_widget *w, 257 struct snd_kcontrol *k, int event) 258 { 259 struct snd_soc_dapm_context *dapm = w->dapm; 260 struct snd_soc_card *card = dapm->card; 261 struct snd_soc_dai *codec_dai; 262 int ret = 0; 263 264 codec_dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI); 265 if (!codec_dai) { 266 dev_err(card->dev, "Codec dai not found\n"); 267 return -EIO; 268 } 269 270 if (SND_SOC_DAPM_EVENT_OFF(event)) { 271 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_INTERNAL, 272 0, SND_SOC_CLOCK_IN); 273 if (ret < 0) { 274 dev_err(card->dev, "set sysclk err = %d\n", ret); 275 return -EIO; 276 } 277 } 278 return ret; 279 } 280 281 static const struct snd_kcontrol_new acp5x_8821_controls[] = { 282 SOC_DAPM_PIN_SWITCH("Headphone"), 283 SOC_DAPM_PIN_SWITCH("Headset Mic"), 284 SOC_DAPM_PIN_SWITCH("Int Mic"), 285 }; 286 287 static const struct snd_soc_dapm_widget acp5x_8821_widgets[] = { 288 SND_SOC_DAPM_HP("Headphone", NULL), 289 SND_SOC_DAPM_MIC("Headset Mic", NULL), 290 SND_SOC_DAPM_MIC("Int Mic", NULL), 291 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 292 platform_clock_control, SND_SOC_DAPM_POST_PMD), 293 }; 294 295 static const struct snd_soc_dapm_route acp5x_8821_audio_route[] = { 296 /* HP jack connectors - unknown if we have jack detection */ 297 { "Headphone", NULL, "HPOL" }, 298 { "Headphone", NULL, "HPOR" }, 299 { "MICL", NULL, "Headset Mic" }, 300 { "MICR", NULL, "Headset Mic" }, 301 { "DMIC", NULL, "Int Mic" }, 302 303 { "Headphone", NULL, "Platform Clock" }, 304 { "Headset Mic", NULL, "Platform Clock" }, 305 { "Int Mic", NULL, "Platform Clock" }, 306 }; 307 308 static struct snd_soc_card acp5x_card = { 309 .name = "acp5x", 310 .owner = THIS_MODULE, 311 .dai_link = acp5x_dai, 312 .num_links = ARRAY_SIZE(acp5x_dai), 313 .dapm_widgets = acp5x_8821_widgets, 314 .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_widgets), 315 .dapm_routes = acp5x_8821_audio_route, 316 .num_dapm_routes = ARRAY_SIZE(acp5x_8821_audio_route), 317 .codec_conf = cs35l41_conf, 318 .num_configs = ARRAY_SIZE(cs35l41_conf), 319 .controls = acp5x_8821_controls, 320 .num_controls = ARRAY_SIZE(acp5x_8821_controls), 321 }; 322 323 324 static int acp5x_vg_quirk_cb(const struct dmi_system_id *id) 325 { 326 acp5x_machine_id = VG_JUPITER; 327 return 1; 328 } 329 330 static const struct dmi_system_id acp5x_vg_quirk_table[] = { 331 { 332 .callback = acp5x_vg_quirk_cb, 333 .matches = { 334 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"), 335 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"), 336 } 337 }, 338 {} 339 }; 340 341 static int acp5x_probe(struct platform_device *pdev) 342 { 343 int ret; 344 struct acp5x_platform_info *machine; 345 struct snd_soc_card *card; 346 347 machine = devm_kzalloc(&pdev->dev, sizeof(struct acp5x_platform_info), 348 GFP_KERNEL); 349 if (!machine) 350 return -ENOMEM; 351 352 dmi_check_system(acp5x_vg_quirk_table); 353 switch(acp5x_machine_id) { 354 case VG_JUPITER: 355 card = &acp5x_card; 356 acp5x_card.dev = &pdev->dev; 357 break; 358 default: 359 return -ENODEV; 360 } 361 platform_set_drvdata(pdev, card); 362 snd_soc_card_set_drvdata(card, machine); 363 364 ret = devm_snd_soc_register_card(&pdev->dev, card); 365 if (ret) { 366 return dev_err_probe(&pdev->dev, ret, 367 "snd_soc_register_card(%s) failed\n", 368 acp5x_card.name); 369 } 370 return 0; 371 } 372 373 static struct platform_driver acp5x_mach_driver = { 374 .driver = { 375 .name = "acp5x_mach", 376 .pm = &snd_soc_pm_ops, 377 }, 378 .probe = acp5x_probe, 379 }; 380 381 module_platform_driver(acp5x_mach_driver); 382 383 MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); 384 MODULE_DESCRIPTION("NAU8821 & CS35L41 audio support"); 385 MODULE_LICENSE("GPL v2"); 386 MODULE_ALIAS("platform:" DRV_NAME); 387