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 <linux/acpi.h> 10 #include <linux/dmi.h> 11 #include <linux/gpio/consumer.h> 12 #include <linux/i2c.h> 13 #include <linux/input-event-codes.h> 14 #include <linux/module.h> 15 #include <sound/jack.h> 16 #include <sound/pcm_params.h> 17 #include <sound/soc.h> 18 #include <sound/soc-dapm.h> 19 20 #include "../../codecs/nau8821.h" 21 #include "acp5x.h" 22 23 #define DRV_NAME "acp5x_mach" 24 #define DUAL_CHANNEL 2 25 #define ACP5X_NUVOTON_CODEC_DAI "nau8821-hifi" 26 #define VG_JUPITER 1 27 #define ACP5X_NUVOTON_BCLK 3072000 28 #define ACP5X_NAU8821_FREQ_OUT 12288000 29 30 static unsigned long acp5x_machine_id; 31 static struct snd_soc_jack vg_headset; 32 33 static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = { 34 { 35 .pin = "Headphone", 36 .mask = SND_JACK_HEADPHONE, 37 }, 38 { 39 .pin = "Headset Mic", 40 .mask = SND_JACK_MICROPHONE, 41 }, 42 }; 43 44 static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd) 45 { 46 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 47 int ret; 48 49 /* 50 * Headset buttons map to the google Reference headset. 51 * These can be configured by userspace. 52 */ 53 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", 54 SND_JACK_HEADSET | SND_JACK_BTN_0, 55 &vg_headset, acp5x_nau8821_jack_pins, 56 ARRAY_SIZE(acp5x_nau8821_jack_pins)); 57 if (ret) { 58 dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret); 59 return ret; 60 } 61 62 snd_jack_set_key(vg_headset.jack, SND_JACK_BTN_0, KEY_MEDIA); 63 nau8821_enable_jack_detect(component, &vg_headset); 64 65 return ret; 66 } 67 68 static const unsigned int rates[] = { 69 48000, 70 }; 71 72 static const struct snd_pcm_hw_constraint_list constraints_rates = { 73 .count = ARRAY_SIZE(rates), 74 .list = rates, 75 .mask = 0, 76 }; 77 78 static const unsigned int channels[] = { 79 2, 80 }; 81 82 static const struct snd_pcm_hw_constraint_list constraints_channels = { 83 .count = ARRAY_SIZE(channels), 84 .list = channels, 85 .mask = 0, 86 }; 87 88 static const unsigned int acp5x_nau8821_format[] = {32}; 89 90 static struct snd_pcm_hw_constraint_list constraints_sample_bits = { 91 .list = acp5x_nau8821_format, 92 .count = ARRAY_SIZE(acp5x_nau8821_format), 93 }; 94 95 static int acp5x_8821_startup(struct snd_pcm_substream *substream) 96 { 97 struct snd_pcm_runtime *runtime = substream->runtime; 98 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 99 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(rtd->card); 100 101 machine->play_i2s_instance = I2S_SP_INSTANCE; 102 machine->cap_i2s_instance = I2S_SP_INSTANCE; 103 104 runtime->hw.channels_max = DUAL_CHANNEL; 105 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 106 &constraints_channels); 107 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 108 &constraints_rates); 109 snd_pcm_hw_constraint_list(substream->runtime, 0, 110 SNDRV_PCM_HW_PARAM_SAMPLE_BITS, 111 &constraints_sample_bits); 112 113 return 0; 114 } 115 116 static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream, 117 struct snd_pcm_hw_params *params) 118 { 119 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 120 struct snd_soc_card *card = rtd->card; 121 struct snd_soc_dai *dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI); 122 int ret; 123 124 ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_FLL_BLK, 0, SND_SOC_CLOCK_IN); 125 if (ret < 0) 126 dev_err(card->dev, "can't set FS clock %d\n", ret); 127 ret = snd_soc_dai_set_pll(dai, 0, 0, snd_soc_params_to_bclk(params), 128 params_rate(params) * 256); 129 if (ret < 0) 130 dev_err(card->dev, "can't set FLL: %d\n", ret); 131 132 return ret; 133 } 134 135 static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream) 136 { 137 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 138 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(rtd->card); 139 struct snd_pcm_runtime *runtime = substream->runtime; 140 141 machine->play_i2s_instance = I2S_HS_INSTANCE; 142 143 runtime->hw.channels_max = DUAL_CHANNEL; 144 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 145 &constraints_channels); 146 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 147 &constraints_rates); 148 149 return 0; 150 } 151 152 static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream, 153 struct snd_pcm_hw_params *params) 154 { 155 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 156 unsigned int num_codecs = rtd->dai_link->num_codecs; 157 struct snd_soc_card *card = rtd->card; 158 struct snd_soc_dai *dai; 159 unsigned int bclk_val; 160 int ret, i; 161 162 ret = 0; 163 for (i = 0; i < num_codecs; i++) { 164 dai = asoc_rtd_to_codec(rtd, i); 165 if (strcmp(dai->name, "cs35l41-pcm") == 0) { 166 switch (params_rate(params)) { 167 case 48000: 168 bclk_val = 1536000; 169 break; 170 default: 171 dev_err(card->dev, "Invalid Samplerate:0x%x\n", 172 params_rate(params)); 173 return -EINVAL; 174 } 175 ret = snd_soc_component_set_sysclk(dai->component, 0, 0, 176 bclk_val, SND_SOC_CLOCK_IN); 177 if (ret < 0) { 178 dev_err(card->dev, "failed to set sysclk for CS35l41 dai\n"); 179 return ret; 180 } 181 } 182 } 183 184 return ret; 185 } 186 187 static const struct snd_soc_ops acp5x_8821_ops = { 188 .startup = acp5x_8821_startup, 189 .hw_params = acp5x_nau8821_hw_params, 190 }; 191 192 static const struct snd_soc_ops acp5x_cs35l41_play_ops = { 193 .startup = acp5x_cs35l41_startup, 194 .hw_params = acp5x_cs35l41_hw_params, 195 }; 196 197 static struct snd_soc_codec_conf cs35l41_conf[] = { 198 { 199 .dlc = COMP_CODEC_CONF("spi-VLV1776:00"), 200 .name_prefix = "Left", 201 }, 202 { 203 .dlc = COMP_CODEC_CONF("spi-VLV1776:01"), 204 .name_prefix = "Right", 205 }, 206 }; 207 208 SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0"))); 209 SND_SOC_DAILINK_DEF(acp5x_i2s, DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0"))); 210 SND_SOC_DAILINK_DEF(acp5x_bt, DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1"))); 211 SND_SOC_DAILINK_DEF(nau8821, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-NVTN2020:00", "nau8821-hifi"))); 212 SND_SOC_DAILINK_DEF(cs35l41, DAILINK_COMP_ARRAY(COMP_CODEC("spi-VLV1776:00", "cs35l41-pcm"), 213 COMP_CODEC("spi-VLV1776:01", "cs35l41-pcm"))); 214 215 static struct snd_soc_dai_link acp5x_dai[] = { 216 { 217 .name = "acp5x-8821-play", 218 .stream_name = "Playback/Capture", 219 .dai_fmt = SND_SOC_DAIFMT_I2S | 220 SND_SOC_DAIFMT_NB_NF | 221 SND_SOC_DAIFMT_CBC_CFC, 222 .dpcm_playback = 1, 223 .dpcm_capture = 1, 224 .ops = &acp5x_8821_ops, 225 .init = acp5x_8821_init, 226 SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform), 227 }, 228 { 229 .name = "acp5x-CS35L41-Stereo", 230 .stream_name = "CS35L41 Stereo Playback", 231 .dai_fmt = SND_SOC_DAIFMT_I2S | 232 SND_SOC_DAIFMT_NB_NF | 233 SND_SOC_DAIFMT_CBC_CFC, 234 .dpcm_playback = 1, 235 .playback_only = 1, 236 .ops = &acp5x_cs35l41_play_ops, 237 SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform), 238 }, 239 }; 240 241 static int platform_clock_control(struct snd_soc_dapm_widget *w, 242 struct snd_kcontrol *k, int event) 243 { 244 struct snd_soc_dapm_context *dapm = w->dapm; 245 struct snd_soc_card *card = dapm->card; 246 struct snd_soc_dai *dai; 247 int ret = 0; 248 249 dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI); 250 if (!dai) { 251 dev_err(card->dev, "Codec dai not found\n"); 252 return -EIO; 253 } 254 255 if (SND_SOC_DAPM_EVENT_OFF(event)) { 256 ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN); 257 if (ret < 0) { 258 dev_err(card->dev, "set sysclk err = %d\n", ret); 259 return -EIO; 260 } 261 } else { 262 ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_FLL_BLK, 0, SND_SOC_CLOCK_IN); 263 if (ret < 0) 264 dev_err(dai->dev, "can't set BLK clock %d\n", ret); 265 ret = snd_soc_dai_set_pll(dai, 0, 0, ACP5X_NUVOTON_BCLK, ACP5X_NAU8821_FREQ_OUT); 266 if (ret < 0) 267 dev_err(dai->dev, "can't set FLL: %d\n", ret); 268 } 269 270 return ret; 271 } 272 273 static const struct snd_kcontrol_new acp5x_8821_controls[] = { 274 SOC_DAPM_PIN_SWITCH("Headphone"), 275 SOC_DAPM_PIN_SWITCH("Headset Mic"), 276 SOC_DAPM_PIN_SWITCH("Int Mic"), 277 }; 278 279 static const struct snd_soc_dapm_widget acp5x_8821_widgets[] = { 280 SND_SOC_DAPM_HP("Headphone", NULL), 281 SND_SOC_DAPM_MIC("Headset Mic", NULL), 282 SND_SOC_DAPM_MIC("Int Mic", NULL), 283 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 284 platform_clock_control, 285 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 286 }; 287 288 static const struct snd_soc_dapm_route acp5x_8821_audio_route[] = { 289 /* HP jack connectors - unknown if we have jack detection */ 290 { "Headphone", NULL, "HPOL" }, 291 { "Headphone", NULL, "HPOR" }, 292 { "MICL", NULL, "Headset Mic" }, 293 { "MICR", NULL, "Headset Mic" }, 294 { "DMIC", NULL, "Int Mic" }, 295 296 { "Headphone", NULL, "Platform Clock" }, 297 { "Headset Mic", NULL, "Platform Clock" }, 298 { "Int Mic", NULL, "Platform Clock" }, 299 }; 300 301 static struct snd_soc_card acp5x_card = { 302 .name = "acp5x", 303 .owner = THIS_MODULE, 304 .dai_link = acp5x_dai, 305 .num_links = ARRAY_SIZE(acp5x_dai), 306 .dapm_widgets = acp5x_8821_widgets, 307 .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_widgets), 308 .dapm_routes = acp5x_8821_audio_route, 309 .num_dapm_routes = ARRAY_SIZE(acp5x_8821_audio_route), 310 .codec_conf = cs35l41_conf, 311 .num_configs = ARRAY_SIZE(cs35l41_conf), 312 .controls = acp5x_8821_controls, 313 .num_controls = ARRAY_SIZE(acp5x_8821_controls), 314 }; 315 316 static int acp5x_vg_quirk_cb(const struct dmi_system_id *id) 317 { 318 acp5x_machine_id = VG_JUPITER; 319 320 return 1; 321 } 322 323 static const struct dmi_system_id acp5x_vg_quirk_table[] = { 324 { 325 .callback = acp5x_vg_quirk_cb, 326 .matches = { 327 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"), 328 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"), 329 } 330 }, 331 {} 332 }; 333 334 static int acp5x_probe(struct platform_device *pdev) 335 { 336 struct acp5x_platform_info *machine; 337 struct device *dev = &pdev->dev; 338 struct snd_soc_card *card; 339 int ret; 340 341 machine = devm_kzalloc(dev, sizeof(*machine), GFP_KERNEL); 342 if (!machine) 343 return -ENOMEM; 344 345 dmi_check_system(acp5x_vg_quirk_table); 346 switch (acp5x_machine_id) { 347 case VG_JUPITER: 348 card = &acp5x_card; 349 break; 350 default: 351 return -ENODEV; 352 } 353 card->dev = dev; 354 platform_set_drvdata(pdev, card); 355 snd_soc_card_set_drvdata(card, machine); 356 357 ret = devm_snd_soc_register_card(dev, card); 358 if (ret) 359 return dev_err_probe(dev, ret, "Register card (%s) failed\n", card->name); 360 361 return 0; 362 } 363 364 static struct platform_driver acp5x_mach_driver = { 365 .driver = { 366 .name = "acp5x_mach", 367 .pm = &snd_soc_pm_ops, 368 }, 369 .probe = acp5x_probe, 370 }; 371 372 module_platform_driver(acp5x_mach_driver); 373 374 MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); 375 MODULE_DESCRIPTION("NAU8821 & CS35L41 audio support"); 376 MODULE_LICENSE("GPL v2"); 377 MODULE_ALIAS("platform:" DRV_NAME); 378