1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright (c) 2020-2021, The Linux Foundation. All rights reserved. 4 // 5 // ALSA SoC Machine driver for sc7280 6 7 #include <dt-bindings/sound/qcom,lpass.h> 8 #include <dt-bindings/sound/qcom,q6afe.h> 9 #include <linux/input.h> 10 #include <linux/mod_devicetable.h> 11 #include <linux/module.h> 12 #include <linux/platform_device.h> 13 #include <sound/core.h> 14 #include <sound/jack.h> 15 #include <sound/pcm.h> 16 #include <sound/soc.h> 17 #include <sound/rt5682s.h> 18 #include <linux/soundwire/sdw.h> 19 #include <sound/pcm_params.h> 20 21 #include "../codecs/rt5682.h" 22 #include "../codecs/rt5682s.h" 23 #include "common.h" 24 #include "lpass.h" 25 #include "qdsp6/q6afe.h" 26 27 #define DEFAULT_MCLK_RATE 19200000 28 #define RT5682_PLL_FREQ (48000 * 512) 29 #define MI2S_BCLK_RATE 1536000 30 31 struct sc7280_snd_data { 32 struct snd_soc_card card; 33 struct sdw_stream_runtime *sruntime[LPASS_MAX_PORTS]; 34 u32 pri_mi2s_clk_count; 35 struct snd_soc_jack hs_jack; 36 struct snd_soc_jack hdmi_jack; 37 bool jack_setup; 38 bool stream_prepared[LPASS_MAX_PORTS]; 39 }; 40 41 static void sc7280_jack_free(struct snd_jack *jack) 42 { 43 struct snd_soc_component *component = jack->private_data; 44 45 snd_soc_component_set_jack(component, NULL, NULL); 46 } 47 48 static struct snd_soc_jack_pin sc7280_jack_pins[] = { 49 { 50 .pin = "Headphone Jack", 51 .mask = SND_JACK_HEADPHONE, 52 }, 53 { 54 .pin = "Headset Mic", 55 .mask = SND_JACK_MICROPHONE, 56 }, 57 }; 58 59 static int sc7280_headset_init(struct snd_soc_pcm_runtime *rtd) 60 { 61 struct snd_soc_card *card = rtd->card; 62 struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card); 63 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 64 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 65 struct snd_soc_component *component = codec_dai->component; 66 struct snd_jack *jack; 67 int rval, i; 68 69 if (!pdata->jack_setup) { 70 rval = snd_soc_card_jack_new_pins(card, "Headset Jack", 71 SND_JACK_HEADSET | SND_JACK_LINEOUT | 72 SND_JACK_MECHANICAL | 73 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 74 SND_JACK_BTN_2 | SND_JACK_BTN_3 | 75 SND_JACK_BTN_4 | SND_JACK_BTN_5, 76 &pdata->hs_jack, 77 sc7280_jack_pins, 78 ARRAY_SIZE(sc7280_jack_pins)); 79 80 if (rval < 0) { 81 dev_err(card->dev, "Unable to add Headset Jack\n"); 82 return rval; 83 } 84 85 jack = pdata->hs_jack.jack; 86 87 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 88 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); 89 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); 90 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); 91 92 jack->private_data = component; 93 jack->private_free = sc7280_jack_free; 94 pdata->jack_setup = true; 95 } 96 switch (cpu_dai->id) { 97 case MI2S_PRIMARY: 98 case LPASS_CDC_DMA_RX0: 99 case LPASS_CDC_DMA_TX3: 100 case TX_CODEC_DMA_TX_3: 101 for_each_rtd_codec_dais(rtd, i, codec_dai) { 102 rval = snd_soc_component_set_jack(component, &pdata->hs_jack, NULL); 103 if (rval != 0 && rval != -ENOTSUPP) { 104 dev_err(card->dev, "Failed to set jack: %d\n", rval); 105 return rval; 106 } 107 } 108 break; 109 default: 110 break; 111 } 112 113 return 0; 114 } 115 116 static int sc7280_hdmi_init(struct snd_soc_pcm_runtime *rtd) 117 { 118 struct snd_soc_card *card = rtd->card; 119 struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card); 120 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 121 struct snd_soc_component *component = codec_dai->component; 122 struct snd_jack *jack; 123 int rval; 124 125 rval = snd_soc_card_jack_new(card, "HDMI Jack", SND_JACK_LINEOUT, 126 &pdata->hdmi_jack); 127 128 if (rval < 0) { 129 dev_err(card->dev, "Unable to add HDMI Jack\n"); 130 return rval; 131 } 132 133 jack = pdata->hdmi_jack.jack; 134 jack->private_data = component; 135 jack->private_free = sc7280_jack_free; 136 137 return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL); 138 } 139 140 static int sc7280_rt5682_init(struct snd_soc_pcm_runtime *rtd) 141 { 142 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 143 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 144 struct snd_soc_card *card = rtd->card; 145 struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card); 146 int ret; 147 148 if (++data->pri_mi2s_clk_count == 1) { 149 snd_soc_dai_set_sysclk(cpu_dai, 150 LPASS_MCLK0, 151 DEFAULT_MCLK_RATE, 152 SNDRV_PCM_STREAM_PLAYBACK); 153 } 154 snd_soc_dai_set_fmt(codec_dai, 155 SND_SOC_DAIFMT_CBC_CFC | 156 SND_SOC_DAIFMT_NB_NF | 157 SND_SOC_DAIFMT_I2S); 158 159 ret = snd_soc_dai_set_pll(codec_dai, RT5682S_PLL2, RT5682S_PLL_S_MCLK, 160 DEFAULT_MCLK_RATE, RT5682_PLL_FREQ); 161 if (ret) { 162 dev_err(rtd->dev, "can't set codec pll: %d\n", ret); 163 return ret; 164 } 165 166 ret = snd_soc_dai_set_sysclk(codec_dai, RT5682S_SCLK_S_PLL2, 167 RT5682_PLL_FREQ, 168 SND_SOC_CLOCK_IN); 169 170 if (ret) { 171 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", 172 ret); 173 return ret; 174 } 175 176 return 0; 177 } 178 179 static int sc7280_init(struct snd_soc_pcm_runtime *rtd) 180 { 181 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 182 183 switch (cpu_dai->id) { 184 case MI2S_PRIMARY: 185 case LPASS_CDC_DMA_TX3: 186 case TX_CODEC_DMA_TX_3: 187 return sc7280_headset_init(rtd); 188 case LPASS_CDC_DMA_RX0: 189 case LPASS_CDC_DMA_VA_TX0: 190 case MI2S_SECONDARY: 191 case RX_CODEC_DMA_RX_0: 192 case SECONDARY_MI2S_RX: 193 case VA_CODEC_DMA_TX_0: 194 return 0; 195 case LPASS_DP_RX: 196 return sc7280_hdmi_init(rtd); 197 default: 198 dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, cpu_dai->id); 199 } 200 201 return -EINVAL; 202 } 203 204 static int sc7280_snd_hw_params(struct snd_pcm_substream *substream, 205 struct snd_pcm_hw_params *params) 206 { 207 struct snd_pcm_runtime *runtime = substream->runtime; 208 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 209 struct snd_soc_dai *codec_dai; 210 const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 211 struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card); 212 struct sdw_stream_runtime *sruntime; 213 int i; 214 215 if (!rtd->dai_link->no_pcm) { 216 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2); 217 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000); 218 } 219 220 switch (cpu_dai->id) { 221 case LPASS_CDC_DMA_TX3: 222 case LPASS_CDC_DMA_RX0: 223 case RX_CODEC_DMA_RX_0: 224 case SECONDARY_MI2S_RX: 225 case TX_CODEC_DMA_TX_3: 226 case VA_CODEC_DMA_TX_0: 227 for_each_rtd_codec_dais(rtd, i, codec_dai) { 228 sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream); 229 if (sruntime != ERR_PTR(-ENOTSUPP)) 230 pdata->sruntime[cpu_dai->id] = sruntime; 231 } 232 break; 233 } 234 235 return 0; 236 } 237 238 static int sc7280_snd_swr_prepare(struct snd_pcm_substream *substream) 239 { 240 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 241 const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 242 struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 243 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 244 int ret; 245 246 if (!sruntime) 247 return 0; 248 249 if (data->stream_prepared[cpu_dai->id]) { 250 sdw_disable_stream(sruntime); 251 sdw_deprepare_stream(sruntime); 252 data->stream_prepared[cpu_dai->id] = false; 253 } 254 255 ret = sdw_prepare_stream(sruntime); 256 if (ret) 257 return ret; 258 259 ret = sdw_enable_stream(sruntime); 260 if (ret) { 261 sdw_deprepare_stream(sruntime); 262 return ret; 263 } 264 data->stream_prepared[cpu_dai->id] = true; 265 266 return ret; 267 } 268 269 static int sc7280_snd_prepare(struct snd_pcm_substream *substream) 270 { 271 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 272 const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 273 274 switch (cpu_dai->id) { 275 case LPASS_CDC_DMA_RX0: 276 case LPASS_CDC_DMA_TX3: 277 case RX_CODEC_DMA_RX_0: 278 case TX_CODEC_DMA_TX_3: 279 case VA_CODEC_DMA_TX_0: 280 return sc7280_snd_swr_prepare(substream); 281 default: 282 break; 283 } 284 285 return 0; 286 } 287 288 static int sc7280_snd_hw_free(struct snd_pcm_substream *substream) 289 { 290 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 291 struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 292 const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 293 struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id]; 294 295 switch (cpu_dai->id) { 296 case LPASS_CDC_DMA_RX0: 297 case LPASS_CDC_DMA_TX3: 298 case RX_CODEC_DMA_RX_0: 299 case TX_CODEC_DMA_TX_3: 300 case VA_CODEC_DMA_TX_0: 301 if (sruntime && data->stream_prepared[cpu_dai->id]) { 302 sdw_disable_stream(sruntime); 303 sdw_deprepare_stream(sruntime); 304 data->stream_prepared[cpu_dai->id] = false; 305 } 306 break; 307 default: 308 break; 309 } 310 return 0; 311 } 312 313 static void sc7280_snd_shutdown(struct snd_pcm_substream *substream) 314 { 315 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 316 struct snd_soc_card *card = rtd->card; 317 struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card); 318 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 319 320 switch (cpu_dai->id) { 321 case MI2S_PRIMARY: 322 if (--data->pri_mi2s_clk_count == 0) { 323 snd_soc_dai_set_sysclk(cpu_dai, 324 LPASS_MCLK0, 325 0, 326 SNDRV_PCM_STREAM_PLAYBACK); 327 } 328 break; 329 case SECONDARY_MI2S_RX: 330 snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 331 0, SNDRV_PCM_STREAM_PLAYBACK); 332 break; 333 default: 334 break; 335 } 336 } 337 338 static int sc7280_snd_startup(struct snd_pcm_substream *substream) 339 { 340 unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS; 341 unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS; 342 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 343 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 344 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 345 int ret = 0; 346 347 switch (cpu_dai->id) { 348 case MI2S_PRIMARY: 349 ret = sc7280_rt5682_init(rtd); 350 break; 351 case SECONDARY_MI2S_RX: 352 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S; 353 354 snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 355 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 356 357 snd_soc_dai_set_fmt(cpu_dai, fmt); 358 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt); 359 break; 360 default: 361 break; 362 } 363 return ret; 364 } 365 366 static const struct snd_soc_ops sc7280_ops = { 367 .startup = sc7280_snd_startup, 368 .hw_params = sc7280_snd_hw_params, 369 .hw_free = sc7280_snd_hw_free, 370 .prepare = sc7280_snd_prepare, 371 .shutdown = sc7280_snd_shutdown, 372 }; 373 374 static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = { 375 SND_SOC_DAPM_HP("Headphone Jack", NULL), 376 SND_SOC_DAPM_MIC("Headset Mic", NULL), 377 }; 378 379 static const struct snd_kcontrol_new sc7280_snd_controls[] = { 380 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 381 SOC_DAPM_PIN_SWITCH("Headset Mic"), 382 }; 383 384 static int sc7280_snd_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 385 struct snd_pcm_hw_params *params) 386 { 387 struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 388 struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 389 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 390 391 rate->min = rate->max = 48000; 392 channels->min = channels->max = 2; 393 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); 394 395 return 0; 396 } 397 398 static int sc7280_snd_platform_probe(struct platform_device *pdev) 399 { 400 struct snd_soc_card *card; 401 struct sc7280_snd_data *data; 402 struct device *dev = &pdev->dev; 403 struct snd_soc_dai_link *link; 404 int ret, i; 405 406 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 407 if (!data) 408 return -ENOMEM; 409 410 card = &data->card; 411 snd_soc_card_set_drvdata(card, data); 412 413 card->owner = THIS_MODULE; 414 card->driver_name = "SC7280"; 415 card->dev = dev; 416 417 card->dapm_widgets = sc7280_snd_widgets; 418 card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets); 419 card->controls = sc7280_snd_controls; 420 card->num_controls = ARRAY_SIZE(sc7280_snd_controls); 421 422 ret = qcom_snd_parse_of(card); 423 if (ret) 424 return ret; 425 426 for_each_card_prelinks(card, i, link) { 427 link->init = sc7280_init; 428 link->ops = &sc7280_ops; 429 if (link->no_pcm == 1) 430 link->be_hw_params_fixup = sc7280_snd_be_hw_params_fixup; 431 } 432 433 return devm_snd_soc_register_card(dev, card); 434 } 435 436 static const struct of_device_id sc7280_snd_device_id[] = { 437 { .compatible = "google,sc7280-herobrine" }, 438 {} 439 }; 440 MODULE_DEVICE_TABLE(of, sc7280_snd_device_id); 441 442 static struct platform_driver sc7280_snd_driver = { 443 .probe = sc7280_snd_platform_probe, 444 .driver = { 445 .name = "msm-snd-sc7280", 446 .of_match_table = sc7280_snd_device_id, 447 .pm = &snd_soc_pm_ops, 448 }, 449 }; 450 module_platform_driver(sc7280_snd_driver); 451 452 MODULE_DESCRIPTION("sc7280 ASoC Machine Driver"); 453 MODULE_LICENSE("GPL"); 454