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 #include <linux/acpi.h> 9 #include <linux/clk.h> 10 #include <linux/dmi.h> 11 #include <linux/gpio.h> 12 #include <linux/gpio/consumer.h> 13 #include <linux/io.h> 14 #include <linux/i2c.h> 15 #include <linux/input.h> 16 #include <linux/module.h> 17 #include <sound/jack.h> 18 #include <sound/pcm.h> 19 #include <sound/pcm_params.h> 20 #include <sound/soc.h> 21 #include <sound/soc-dapm.h> 22 23 #include "../../codecs/nau8821.h" 24 #include "../../codecs/cs35l41.h" 25 #include "acp5x.h" 26 27 #define DRV_NAME "acp5x_mach" 28 #define DUAL_CHANNEL 2 29 #define ACP5X_NUVOTON_CODEC_DAI "nau8821-hifi" 30 #define VG_JUPITER 1 31 #define ACP5X_NUVOTON_BCLK 3072000 32 #define ACP5X_NAU8821_FREQ_OUT 12288000 33 34 static unsigned long acp5x_machine_id; 35 static struct snd_soc_jack vg_headset; 36 37 static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = { 38 { 39 .pin = "Headphone", 40 .mask = SND_JACK_HEADPHONE, 41 }, 42 { 43 .pin = "Headset Mic", 44 .mask = SND_JACK_MICROPHONE, 45 }, 46 }; 47 48 static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd) 49 { 50 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 51 int ret; 52 53 /* 54 * Headset buttons map to the google Reference headset. 55 * These can be configured by userspace. 56 */ 57 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack", 58 SND_JACK_HEADSET | SND_JACK_BTN_0, 59 &vg_headset, acp5x_nau8821_jack_pins, 60 ARRAY_SIZE(acp5x_nau8821_jack_pins)); 61 if (ret) { 62 dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret); 63 return ret; 64 } 65 66 snd_jack_set_key(vg_headset.jack, SND_JACK_BTN_0, KEY_MEDIA); 67 nau8821_enable_jack_detect(component, &vg_headset); 68 69 return ret; 70 } 71 72 static const unsigned int rates[] = { 73 48000, 74 }; 75 76 static const struct snd_pcm_hw_constraint_list constraints_rates = { 77 .count = ARRAY_SIZE(rates), 78 .list = rates, 79 .mask = 0, 80 }; 81 82 static const unsigned int channels[] = { 83 2, 84 }; 85 86 static const struct snd_pcm_hw_constraint_list constraints_channels = { 87 .count = ARRAY_SIZE(channels), 88 .list = channels, 89 .mask = 0, 90 }; 91 92 static const unsigned int acp5x_nau8821_format[] = {32}; 93 94 static struct snd_pcm_hw_constraint_list constraints_sample_bits = { 95 .list = acp5x_nau8821_format, 96 .count = ARRAY_SIZE(acp5x_nau8821_format), 97 }; 98 99 static int acp5x_8821_startup(struct snd_pcm_substream *substream) 100 { 101 struct snd_pcm_runtime *runtime = substream->runtime; 102 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 103 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(rtd->card); 104 105 machine->play_i2s_instance = I2S_SP_INSTANCE; 106 machine->cap_i2s_instance = I2S_SP_INSTANCE; 107 108 runtime->hw.channels_max = DUAL_CHANNEL; 109 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 110 &constraints_channels); 111 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 112 &constraints_rates); 113 snd_pcm_hw_constraint_list(substream->runtime, 0, 114 SNDRV_PCM_HW_PARAM_SAMPLE_BITS, 115 &constraints_sample_bits); 116 117 return 0; 118 } 119 120 static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream, 121 struct snd_pcm_hw_params *params) 122 { 123 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 124 struct snd_soc_card *card = rtd->card; 125 struct snd_soc_dai *dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI); 126 int ret; 127 128 ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_FLL_BLK, 0, SND_SOC_CLOCK_IN); 129 if (ret < 0) 130 dev_err(card->dev, "can't set FS clock %d\n", ret); 131 ret = snd_soc_dai_set_pll(dai, 0, 0, snd_soc_params_to_bclk(params), 132 params_rate(params) * 256); 133 if (ret < 0) 134 dev_err(card->dev, "can't set FLL: %d\n", ret); 135 136 return ret; 137 } 138 139 static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream) 140 { 141 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 142 struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(rtd->card); 143 struct snd_pcm_runtime *runtime = substream->runtime; 144 145 machine->play_i2s_instance = I2S_HS_INSTANCE; 146 147 runtime->hw.channels_max = DUAL_CHANNEL; 148 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 149 &constraints_channels); 150 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 151 &constraints_rates); 152 153 return 0; 154 } 155 156 static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream, 157 struct snd_pcm_hw_params *params) 158 { 159 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 160 unsigned int num_codecs = rtd->dai_link->num_codecs; 161 struct snd_soc_card *card = rtd->card; 162 struct snd_soc_dai *dai; 163 unsigned int bclk_val; 164 int ret, i; 165 166 ret = 0; 167 for (i = 0; i < num_codecs; i++) { 168 dai = asoc_rtd_to_codec(rtd, i); 169 if (strcmp(dai->name, "cs35l41-pcm") == 0) { 170 switch (params_rate(params)) { 171 case 48000: 172 bclk_val = 1536000; 173 break; 174 default: 175 dev_err(card->dev, "Invalid Samplerate:0x%x\n", 176 params_rate(params)); 177 return -EINVAL; 178 } 179 ret = snd_soc_component_set_sysclk(dai->component, 0, 0, 180 bclk_val, SND_SOC_CLOCK_IN); 181 if (ret < 0) { 182 dev_err(card->dev, "failed to set sysclk for CS35l41 dai\n"); 183 return ret; 184 } 185 } 186 } 187 188 return ret; 189 } 190 191 static const struct snd_soc_ops acp5x_8821_ops = { 192 .startup = acp5x_8821_startup, 193 .hw_params = acp5x_nau8821_hw_params, 194 }; 195 196 static const struct snd_soc_ops acp5x_cs35l41_play_ops = { 197 .startup = acp5x_cs35l41_startup, 198 .hw_params = acp5x_cs35l41_hw_params, 199 }; 200 201 static struct snd_soc_codec_conf cs35l41_conf[] = { 202 { 203 .dlc = COMP_CODEC_CONF("spi-VLV1776:00"), 204 .name_prefix = "Left", 205 }, 206 { 207 .dlc = COMP_CODEC_CONF("spi-VLV1776:01"), 208 .name_prefix = "Right", 209 }, 210 }; 211 212 SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0"))); 213 SND_SOC_DAILINK_DEF(acp5x_i2s, DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0"))); 214 SND_SOC_DAILINK_DEF(acp5x_bt, DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1"))); 215 SND_SOC_DAILINK_DEF(nau8821, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-NVTN2020:00", "nau8821-hifi"))); 216 SND_SOC_DAILINK_DEF(cs35l41, DAILINK_COMP_ARRAY(COMP_CODEC("spi-VLV1776:00", "cs35l41-pcm"), 217 COMP_CODEC("spi-VLV1776:01", "cs35l41-pcm"))); 218 219 static struct snd_soc_dai_link acp5x_dai[] = { 220 { 221 .name = "acp5x-8821-play", 222 .stream_name = "Playback/Capture", 223 .dai_fmt = SND_SOC_DAIFMT_I2S | 224 SND_SOC_DAIFMT_NB_NF | 225 SND_SOC_DAIFMT_CBC_CFC, 226 .dpcm_playback = 1, 227 .dpcm_capture = 1, 228 .ops = &acp5x_8821_ops, 229 .init = acp5x_8821_init, 230 SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform), 231 }, 232 { 233 .name = "acp5x-CS35L41-Stereo", 234 .stream_name = "CS35L41 Stereo Playback", 235 .dai_fmt = SND_SOC_DAIFMT_I2S | 236 SND_SOC_DAIFMT_NB_NF | 237 SND_SOC_DAIFMT_CBC_CFC, 238 .dpcm_playback = 1, 239 .playback_only = 1, 240 .ops = &acp5x_cs35l41_play_ops, 241 SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform), 242 }, 243 }; 244 245 static int platform_clock_control(struct snd_soc_dapm_widget *w, 246 struct snd_kcontrol *k, int event) 247 { 248 struct snd_soc_dapm_context *dapm = w->dapm; 249 struct snd_soc_card *card = dapm->card; 250 struct snd_soc_dai *dai; 251 int ret = 0; 252 253 dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI); 254 if (!dai) { 255 dev_err(card->dev, "Codec dai not found\n"); 256 return -EIO; 257 } 258 259 if (SND_SOC_DAPM_EVENT_OFF(event)) { 260 ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN); 261 if (ret < 0) { 262 dev_err(card->dev, "set sysclk err = %d\n", ret); 263 return -EIO; 264 } 265 } else { 266 ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_FLL_BLK, 0, SND_SOC_CLOCK_IN); 267 if (ret < 0) 268 dev_err(dai->dev, "can't set BLK clock %d\n", ret); 269 ret = snd_soc_dai_set_pll(dai, 0, 0, ACP5X_NUVOTON_BCLK, ACP5X_NAU8821_FREQ_OUT); 270 if (ret < 0) 271 dev_err(dai->dev, "can't set FLL: %d\n", ret); 272 } 273 274 return ret; 275 } 276 277 static const struct snd_kcontrol_new acp5x_8821_controls[] = { 278 SOC_DAPM_PIN_SWITCH("Headphone"), 279 SOC_DAPM_PIN_SWITCH("Headset Mic"), 280 SOC_DAPM_PIN_SWITCH("Int Mic"), 281 }; 282 283 static const struct snd_soc_dapm_widget acp5x_8821_widgets[] = { 284 SND_SOC_DAPM_HP("Headphone", NULL), 285 SND_SOC_DAPM_MIC("Headset Mic", NULL), 286 SND_SOC_DAPM_MIC("Int Mic", NULL), 287 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 288 platform_clock_control, 289 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 290 }; 291 292 static const struct snd_soc_dapm_route acp5x_8821_audio_route[] = { 293 /* HP jack connectors - unknown if we have jack detection */ 294 { "Headphone", NULL, "HPOL" }, 295 { "Headphone", NULL, "HPOR" }, 296 { "MICL", NULL, "Headset Mic" }, 297 { "MICR", NULL, "Headset Mic" }, 298 { "DMIC", NULL, "Int Mic" }, 299 300 { "Headphone", NULL, "Platform Clock" }, 301 { "Headset Mic", NULL, "Platform Clock" }, 302 { "Int Mic", NULL, "Platform Clock" }, 303 }; 304 305 static struct snd_soc_card acp5x_card = { 306 .name = "acp5x", 307 .owner = THIS_MODULE, 308 .dai_link = acp5x_dai, 309 .num_links = ARRAY_SIZE(acp5x_dai), 310 .dapm_widgets = acp5x_8821_widgets, 311 .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_widgets), 312 .dapm_routes = acp5x_8821_audio_route, 313 .num_dapm_routes = ARRAY_SIZE(acp5x_8821_audio_route), 314 .codec_conf = cs35l41_conf, 315 .num_configs = ARRAY_SIZE(cs35l41_conf), 316 .controls = acp5x_8821_controls, 317 .num_controls = ARRAY_SIZE(acp5x_8821_controls), 318 }; 319 320 static int acp5x_vg_quirk_cb(const struct dmi_system_id *id) 321 { 322 acp5x_machine_id = VG_JUPITER; 323 324 return 1; 325 } 326 327 static const struct dmi_system_id acp5x_vg_quirk_table[] = { 328 { 329 .callback = acp5x_vg_quirk_cb, 330 .matches = { 331 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"), 332 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"), 333 } 334 }, 335 {} 336 }; 337 338 static int acp5x_probe(struct platform_device *pdev) 339 { 340 struct acp5x_platform_info *machine; 341 struct device *dev = &pdev->dev; 342 struct snd_soc_card *card; 343 int ret; 344 345 machine = devm_kzalloc(dev, sizeof(*machine), GFP_KERNEL); 346 if (!machine) 347 return -ENOMEM; 348 349 dmi_check_system(acp5x_vg_quirk_table); 350 switch (acp5x_machine_id) { 351 case VG_JUPITER: 352 card = &acp5x_card; 353 break; 354 default: 355 return -ENODEV; 356 } 357 card->dev = dev; 358 platform_set_drvdata(pdev, card); 359 snd_soc_card_set_drvdata(card, machine); 360 361 ret = devm_snd_soc_register_card(dev, card); 362 if (ret) 363 return dev_err_probe(dev, ret, "Register card (%s) failed\n", card->name); 364 365 return 0; 366 } 367 368 static struct platform_driver acp5x_mach_driver = { 369 .driver = { 370 .name = "acp5x_mach", 371 .pm = &snd_soc_pm_ops, 372 }, 373 .probe = acp5x_probe, 374 }; 375 376 module_platform_driver(acp5x_mach_driver); 377 378 MODULE_AUTHOR("Vijendar.Mukunda@amd.com"); 379 MODULE_DESCRIPTION("NAU8821 & CS35L41 audio support"); 380 MODULE_LICENSE("GPL v2"); 381 MODULE_ALIAS("platform:" DRV_NAME); 382