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/i2c.h> 21 #include <linux/input.h> 22 #include <linux/acpi.h> 23 #include <linux/dmi.h> 24 25 #include "../../codecs/nau8821.h" 26 #include "../../codecs/cs35l41.h" 27 28 #include "acp5x.h" 29 30 #define DRV_NAME "acp5x_mach" 31 #define DUAL_CHANNEL 2 32 #define ACP5X_NUVOTON_CODEC_DAI "nau8821-hifi" 33 #define VG_JUPITER 1 34 #define ACP5X_NUVOTON_BCLK 3072000 35 #define ACP5X_NAU8821_FREQ_OUT 12288000 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_pins(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 const unsigned int acp5x_nau8821_format[] = {32}; 102 103 static struct snd_pcm_hw_constraint_list constraints_sample_bits = { 104 .list = acp5x_nau8821_format, 105 .count = ARRAY_SIZE(acp5x_nau8821_format), 106 }; 107 108 static int acp5x_8821_startup(struct snd_pcm_substream *substream) 109 { 110 struct snd_pcm_runtime *runtime = substream->runtime; 111 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 112 struct snd_soc_card *card = rtd->card; 113 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card); 114 115 machine->play_i2s_instance = I2S_SP_INSTANCE; 116 machine->cap_i2s_instance = I2S_SP_INSTANCE; 117 118 runtime->hw.channels_max = DUAL_CHANNEL; 119 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 120 &constraints_channels); 121 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 122 &constraints_rates); 123 snd_pcm_hw_constraint_list(substream->runtime, 0, 124 SNDRV_PCM_HW_PARAM_SAMPLE_BITS, 125 &constraints_sample_bits); 126 return 0; 127 } 128 129 static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream, 130 struct snd_pcm_hw_params *params) 131 { 132 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 133 struct snd_soc_card *card = rtd->card; 134 struct snd_soc_dai *codec_dai = 135 snd_soc_card_get_codec_dai(card, 136 ACP5X_NUVOTON_CODEC_DAI); 137 int ret; 138 139 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_FLL_BLK, 0, 140 SND_SOC_CLOCK_IN); 141 if (ret < 0) 142 dev_err(card->dev, "can't set FS clock %d\n", ret); 143 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, snd_soc_params_to_bclk(params), 144 params_rate(params) * 256); 145 if (ret < 0) 146 dev_err(card->dev, "can't set FLL: %d\n", ret); 147 148 return ret; 149 } 150 151 static int acp5x_cs35l41_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 acp5x_platform_info *machine = snd_soc_card_get_drvdata(card); 157 158 machine->play_i2s_instance = I2S_HS_INSTANCE; 159 160 runtime->hw.channels_max = DUAL_CHANNEL; 161 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 162 &constraints_channels); 163 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 164 &constraints_rates); 165 return 0; 166 } 167 168 static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream, 169 struct snd_pcm_hw_params *params) 170 { 171 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 172 struct snd_soc_card *card = rtd->card; 173 struct snd_soc_dai *codec_dai; 174 int ret, i; 175 unsigned int num_codecs = rtd->num_codecs; 176 unsigned int bclk_val; 177 178 ret = 0; 179 for (i = 0; i < num_codecs; i++) { 180 codec_dai = asoc_rtd_to_codec(rtd, i); 181 if ((strcmp(codec_dai->name, "spi-VLV1776:00") == 0) || 182 (strcmp(codec_dai->name, "spi-VLV1776:01") == 0)) { 183 switch (params_rate(params)) { 184 case 48000: 185 bclk_val = 1536000; 186 break; 187 default: 188 dev_err(card->dev, "Invalid Samplerate:0x%x\n", 189 params_rate(params)); 190 return -EINVAL; 191 } 192 ret = snd_soc_component_set_sysclk(codec_dai->component, 193 0, 0, bclk_val, SND_SOC_CLOCK_IN); 194 if (ret < 0) { 195 dev_err(card->dev, "failed to set sysclk for CS35l41 dai\n"); 196 return ret; 197 } 198 } 199 } 200 201 return ret; 202 } 203 204 static const struct snd_soc_ops acp5x_8821_ops = { 205 .startup = acp5x_8821_startup, 206 .hw_params = acp5x_nau8821_hw_params, 207 }; 208 209 static const struct snd_soc_ops acp5x_cs35l41_play_ops = { 210 .startup = acp5x_cs35l41_startup, 211 .hw_params = acp5x_cs35l41_hw_params, 212 }; 213 214 static struct snd_soc_codec_conf cs35l41_conf[] = { 215 { 216 .dlc = COMP_CODEC_CONF("spi-VLV1776:00"), 217 .name_prefix = "Left", 218 }, 219 { 220 .dlc = COMP_CODEC_CONF("spi-VLV1776:01"), 221 .name_prefix = "Right", 222 }, 223 }; 224 225 SND_SOC_DAILINK_DEF(acp5x_i2s, 226 DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0"))); 227 228 SND_SOC_DAILINK_DEF(acp5x_bt, 229 DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1"))); 230 231 SND_SOC_DAILINK_DEF(nau8821, 232 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-NVTN2020:00", 233 "nau8821-hifi"))); 234 235 SND_SOC_DAILINK_DEF(cs35l41, 236 DAILINK_COMP_ARRAY(COMP_CODEC("spi-VLV1776:00", "cs35l41-pcm"), 237 COMP_CODEC("spi-VLV1776:01", "cs35l41-pcm"))); 238 239 SND_SOC_DAILINK_DEF(platform, 240 DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0"))); 241 242 static struct snd_soc_dai_link acp5x_dai[] = { 243 { 244 .name = "acp5x-8821-play", 245 .stream_name = "Playback/Capture", 246 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 247 SND_SOC_DAIFMT_CBC_CFC, 248 .dpcm_playback = 1, 249 .dpcm_capture = 1, 250 .ops = &acp5x_8821_ops, 251 .init = acp5x_8821_init, 252 SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform), 253 }, 254 { 255 .name = "acp5x-CS35L41-Stereo", 256 .stream_name = "CS35L41 Stereo Playback", 257 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 258 SND_SOC_DAIFMT_CBC_CFC, 259 .dpcm_playback = 1, 260 .playback_only = 1, 261 .ops = &acp5x_cs35l41_play_ops, 262 .init = acp5x_cs35l41_init, 263 SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform), 264 }, 265 }; 266 267 static int platform_clock_control(struct snd_soc_dapm_widget *w, 268 struct snd_kcontrol *k, int event) 269 { 270 struct snd_soc_dapm_context *dapm = w->dapm; 271 struct snd_soc_card *card = dapm->card; 272 struct snd_soc_dai *codec_dai; 273 int ret = 0; 274 275 codec_dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI); 276 if (!codec_dai) { 277 dev_err(card->dev, "Codec dai not found\n"); 278 return -EIO; 279 } 280 281 if (SND_SOC_DAPM_EVENT_OFF(event)) { 282 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_INTERNAL, 283 0, SND_SOC_CLOCK_IN); 284 if (ret < 0) { 285 dev_err(card->dev, "set sysclk err = %d\n", ret); 286 return -EIO; 287 } 288 } else { 289 ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_FLL_BLK, 0, 290 SND_SOC_CLOCK_IN); 291 if (ret < 0) 292 dev_err(codec_dai->dev, "can't set BLK clock %d\n", ret); 293 ret = snd_soc_dai_set_pll(codec_dai, 0, 0, ACP5X_NUVOTON_BCLK, 294 ACP5X_NAU8821_FREQ_OUT); 295 if (ret < 0) 296 dev_err(codec_dai->dev, "can't set FLL: %d\n", ret); 297 } 298 return ret; 299 } 300 301 static const struct snd_kcontrol_new acp5x_8821_controls[] = { 302 SOC_DAPM_PIN_SWITCH("Headphone"), 303 SOC_DAPM_PIN_SWITCH("Headset Mic"), 304 SOC_DAPM_PIN_SWITCH("Int Mic"), 305 }; 306 307 static const struct snd_soc_dapm_widget acp5x_8821_widgets[] = { 308 SND_SOC_DAPM_HP("Headphone", NULL), 309 SND_SOC_DAPM_MIC("Headset Mic", NULL), 310 SND_SOC_DAPM_MIC("Int Mic", NULL), 311 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 312 platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 313 }; 314 315 static const struct snd_soc_dapm_route acp5x_8821_audio_route[] = { 316 /* HP jack connectors - unknown if we have jack detection */ 317 { "Headphone", NULL, "HPOL" }, 318 { "Headphone", NULL, "HPOR" }, 319 { "MICL", NULL, "Headset Mic" }, 320 { "MICR", NULL, "Headset Mic" }, 321 { "DMIC", NULL, "Int Mic" }, 322 323 { "Headphone", NULL, "Platform Clock" }, 324 { "Headset Mic", NULL, "Platform Clock" }, 325 { "Int Mic", NULL, "Platform Clock" }, 326 }; 327 328 static struct snd_soc_card acp5x_card = { 329 .name = "acp5x", 330 .owner = THIS_MODULE, 331 .dai_link = acp5x_dai, 332 .num_links = ARRAY_SIZE(acp5x_dai), 333 .dapm_widgets = acp5x_8821_widgets, 334 .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_widgets), 335 .dapm_routes = acp5x_8821_audio_route, 336 .num_dapm_routes = ARRAY_SIZE(acp5x_8821_audio_route), 337 .codec_conf = cs35l41_conf, 338 .num_configs = ARRAY_SIZE(cs35l41_conf), 339 .controls = acp5x_8821_controls, 340 .num_controls = ARRAY_SIZE(acp5x_8821_controls), 341 }; 342 343 static int acp5x_vg_quirk_cb(const struct dmi_system_id *id) 344 { 345 acp5x_machine_id = VG_JUPITER; 346 return 1; 347 } 348 349 static const struct dmi_system_id acp5x_vg_quirk_table[] = { 350 { 351 .callback = acp5x_vg_quirk_cb, 352 .matches = { 353 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"), 354 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"), 355 } 356 }, 357 {} 358 }; 359 360 static int acp5x_probe(struct platform_device *pdev) 361 { 362 int ret; 363 struct acp5x_platform_info *machine; 364 struct snd_soc_card *card; 365 366 machine = devm_kzalloc(&pdev->dev, sizeof(struct acp5x_platform_info), 367 GFP_KERNEL); 368 if (!machine) 369 return -ENOMEM; 370 371 dmi_check_system(acp5x_vg_quirk_table); 372 switch (acp5x_machine_id) { 373 case VG_JUPITER: 374 card = &acp5x_card; 375 acp5x_card.dev = &pdev->dev; 376 break; 377 default: 378 return -ENODEV; 379 } 380 platform_set_drvdata(pdev, card); 381 snd_soc_card_set_drvdata(card, machine); 382 383 ret = devm_snd_soc_register_card(&pdev->dev, card); 384 if (ret) { 385 return dev_err_probe(&pdev->dev, ret, 386 "snd_soc_register_card(%s) failed\n", 387 acp5x_card.name); 388 } 389 return 0; 390 } 391 392 static struct platform_driver acp5x_mach_driver = { 393 .driver = { 394 .name = "acp5x_mach", 395 .pm = &snd_soc_pm_ops, 396 }, 397 .probe = acp5x_probe, 398 }; 399 400 module_platform_driver(acp5x_mach_driver); 401 402 MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); 403 MODULE_DESCRIPTION("NAU8821 & CS35L41 audio support"); 404 MODULE_LICENSE("GPL v2"); 405 MODULE_ALIAS("platform:" DRV_NAME); 406