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 #include "sdw.h" 27 28 #define DEFAULT_MCLK_RATE 19200000 29 #define RT5682_PLL_FREQ (48000 * 512) 30 #define MI2S_BCLK_RATE 1536000 31 32 struct sc7280_snd_data { 33 struct snd_soc_card card; 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); 209 210 if (!rtd->dai_link->no_pcm) { 211 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2); 212 snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000); 213 } 214 215 return 0; 216 } 217 218 static int sc7280_snd_swr_prepare(struct snd_pcm_substream *substream) 219 { 220 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 221 const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 222 struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 223 224 return qcom_snd_sdw_prepare(substream, &data->stream_prepared[cpu_dai->id]); 225 } 226 227 static int sc7280_snd_prepare(struct snd_pcm_substream *substream) 228 { 229 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 230 const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 231 232 switch (cpu_dai->id) { 233 case LPASS_CDC_DMA_RX0: 234 case LPASS_CDC_DMA_TX3: 235 case RX_CODEC_DMA_RX_0: 236 case TX_CODEC_DMA_TX_3: 237 case VA_CODEC_DMA_TX_0: 238 return sc7280_snd_swr_prepare(substream); 239 default: 240 break; 241 } 242 243 return 0; 244 } 245 246 static int sc7280_snd_hw_free(struct snd_pcm_substream *substream) 247 { 248 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 249 struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card); 250 const struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 251 252 return qcom_snd_sdw_hw_free(substream, &data->stream_prepared[cpu_dai->id]); 253 } 254 255 static void sc7280_snd_shutdown(struct snd_pcm_substream *substream) 256 { 257 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 258 struct snd_soc_card *card = rtd->card; 259 struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card); 260 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 261 262 switch (cpu_dai->id) { 263 case MI2S_PRIMARY: 264 if (--data->pri_mi2s_clk_count == 0) { 265 snd_soc_dai_set_sysclk(cpu_dai, 266 LPASS_MCLK0, 267 0, 268 SNDRV_PCM_STREAM_PLAYBACK); 269 } 270 break; 271 case SECONDARY_MI2S_RX: 272 snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 273 0, SNDRV_PCM_STREAM_PLAYBACK); 274 break; 275 default: 276 break; 277 } 278 279 qcom_snd_sdw_shutdown(substream); 280 } 281 282 static int sc7280_snd_startup(struct snd_pcm_substream *substream) 283 { 284 unsigned int fmt = SND_SOC_DAIFMT_CBC_CFC; 285 unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBC_CFC; 286 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 287 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); 288 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); 289 int ret = 0; 290 291 switch (cpu_dai->id) { 292 case MI2S_PRIMARY: 293 ret = sc7280_rt5682_init(rtd); 294 if (ret) 295 return ret; 296 break; 297 case SECONDARY_MI2S_RX: 298 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S; 299 300 snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT, 301 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK); 302 303 snd_soc_dai_set_fmt(cpu_dai, fmt); 304 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt); 305 break; 306 default: 307 break; 308 } 309 310 return qcom_snd_sdw_startup(substream); 311 } 312 313 static const struct snd_soc_ops sc7280_ops = { 314 .startup = sc7280_snd_startup, 315 .hw_params = sc7280_snd_hw_params, 316 .hw_free = sc7280_snd_hw_free, 317 .prepare = sc7280_snd_prepare, 318 .shutdown = sc7280_snd_shutdown, 319 }; 320 321 static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = { 322 SND_SOC_DAPM_HP("Headphone Jack", NULL), 323 SND_SOC_DAPM_MIC("Headset Mic", NULL), 324 }; 325 326 static const struct snd_kcontrol_new sc7280_snd_controls[] = { 327 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 328 SOC_DAPM_PIN_SWITCH("Headset Mic"), 329 }; 330 331 static int sc7280_snd_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, 332 struct snd_pcm_hw_params *params) 333 { 334 struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 335 struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 336 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 337 338 rate->min = rate->max = 48000; 339 channels->min = channels->max = 2; 340 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE); 341 342 return 0; 343 } 344 345 static int sc7280_snd_platform_probe(struct platform_device *pdev) 346 { 347 struct snd_soc_card *card; 348 struct sc7280_snd_data *data; 349 struct device *dev = &pdev->dev; 350 struct snd_soc_dai_link *link; 351 int ret, i; 352 353 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 354 if (!data) 355 return -ENOMEM; 356 357 card = &data->card; 358 snd_soc_card_set_drvdata(card, data); 359 360 card->owner = THIS_MODULE; 361 card->driver_name = "SC7280"; 362 card->dev = dev; 363 364 card->dapm_widgets = sc7280_snd_widgets; 365 card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets); 366 card->controls = sc7280_snd_controls; 367 card->num_controls = ARRAY_SIZE(sc7280_snd_controls); 368 369 ret = qcom_snd_parse_of(card); 370 if (ret) 371 return ret; 372 373 for_each_card_prelinks(card, i, link) { 374 link->init = sc7280_init; 375 link->ops = &sc7280_ops; 376 if (link->no_pcm == 1) 377 link->be_hw_params_fixup = sc7280_snd_be_hw_params_fixup; 378 } 379 380 return devm_snd_soc_register_card(dev, card); 381 } 382 383 static const struct of_device_id sc7280_snd_device_id[] = { 384 { .compatible = "google,sc7280-herobrine" }, 385 {} 386 }; 387 MODULE_DEVICE_TABLE(of, sc7280_snd_device_id); 388 389 static struct platform_driver sc7280_snd_driver = { 390 .probe = sc7280_snd_platform_probe, 391 .driver = { 392 .name = "msm-snd-sc7280", 393 .of_match_table = sc7280_snd_device_id, 394 .pm = &snd_soc_pm_ops, 395 }, 396 }; 397 module_platform_driver(sc7280_snd_driver); 398 399 MODULE_DESCRIPTION("sc7280 ASoC Machine Driver"); 400 MODULE_LICENSE("GPL"); 401