1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // Speyside audio support 4 // 5 // Copyright 2011 Wolfson Microelectronics 6 7 #include <sound/soc.h> 8 #include <sound/soc-dapm.h> 9 #include <sound/jack.h> 10 #include <linux/gpio.h> 11 #include <linux/module.h> 12 13 #include "../codecs/wm8996.h" 14 #include "../codecs/wm9081.h" 15 16 #define WM8996_HPSEL_GPIO 214 17 #define MCLK_AUDIO_RATE (512 * 48000) 18 19 static int speyside_set_bias_level(struct snd_soc_card *card, 20 struct snd_soc_dapm_context *dapm, 21 enum snd_soc_bias_level level) 22 { 23 struct snd_soc_pcm_runtime *rtd; 24 struct snd_soc_dai *codec_dai; 25 int ret; 26 27 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name); 28 codec_dai = rtd->codec_dai; 29 30 if (dapm->dev != codec_dai->dev) 31 return 0; 32 33 switch (level) { 34 case SND_SOC_BIAS_STANDBY: 35 ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2, 36 32768, SND_SOC_CLOCK_IN); 37 if (ret < 0) 38 return ret; 39 40 ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2, 41 0, 0, 0); 42 if (ret < 0) { 43 pr_err("Failed to stop FLL\n"); 44 return ret; 45 } 46 break; 47 48 default: 49 break; 50 } 51 52 return 0; 53 } 54 55 static int speyside_set_bias_level_post(struct snd_soc_card *card, 56 struct snd_soc_dapm_context *dapm, 57 enum snd_soc_bias_level level) 58 { 59 struct snd_soc_pcm_runtime *rtd; 60 struct snd_soc_dai *codec_dai; 61 int ret; 62 63 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name); 64 codec_dai = rtd->codec_dai; 65 66 if (dapm->dev != codec_dai->dev) 67 return 0; 68 69 switch (level) { 70 case SND_SOC_BIAS_PREPARE: 71 if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) { 72 ret = snd_soc_dai_set_pll(codec_dai, 0, 73 WM8996_FLL_MCLK2, 74 32768, MCLK_AUDIO_RATE); 75 if (ret < 0) { 76 pr_err("Failed to start FLL\n"); 77 return ret; 78 } 79 80 ret = snd_soc_dai_set_sysclk(codec_dai, 81 WM8996_SYSCLK_FLL, 82 MCLK_AUDIO_RATE, 83 SND_SOC_CLOCK_IN); 84 if (ret < 0) 85 return ret; 86 } 87 break; 88 89 default: 90 break; 91 } 92 93 card->dapm.bias_level = level; 94 95 return 0; 96 } 97 98 static struct snd_soc_jack speyside_headset; 99 100 /* Headset jack detection DAPM pins */ 101 static struct snd_soc_jack_pin speyside_headset_pins[] = { 102 { 103 .pin = "Headset Mic", 104 .mask = SND_JACK_MICROPHONE, 105 }, 106 }; 107 108 /* Default the headphone selection to active high */ 109 static int speyside_jack_polarity; 110 111 static int speyside_get_micbias(struct snd_soc_dapm_widget *source, 112 struct snd_soc_dapm_widget *sink) 113 { 114 if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0)) 115 return 1; 116 if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0)) 117 return 1; 118 119 return 0; 120 } 121 122 static void speyside_set_polarity(struct snd_soc_component *component, 123 int polarity) 124 { 125 speyside_jack_polarity = !polarity; 126 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 127 128 /* Re-run DAPM to make sure we're using the correct mic bias */ 129 snd_soc_dapm_sync(snd_soc_component_get_dapm(component)); 130 } 131 132 static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd) 133 { 134 struct snd_soc_dai *dai = rtd->codec_dai; 135 int ret; 136 137 ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0); 138 if (ret < 0) 139 return ret; 140 141 return 0; 142 } 143 144 static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) 145 { 146 struct snd_soc_dai *dai = rtd->codec_dai; 147 struct snd_soc_component *component = dai->component; 148 int ret; 149 150 ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0); 151 if (ret < 0) 152 return ret; 153 154 ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL"); 155 if (ret != 0) 156 pr_err("Failed to request HP_SEL GPIO: %d\n", ret); 157 gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); 158 159 ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT | 160 SND_JACK_HEADSET | SND_JACK_BTN_0, 161 &speyside_headset, speyside_headset_pins, 162 ARRAY_SIZE(speyside_headset_pins)); 163 if (ret) 164 return ret; 165 166 wm8996_detect(component, &speyside_headset, speyside_set_polarity); 167 168 return 0; 169 } 170 171 static int speyside_late_probe(struct snd_soc_card *card) 172 { 173 snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); 174 snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); 175 snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); 176 snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); 177 snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker"); 178 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); 179 snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); 180 181 return 0; 182 } 183 184 static const struct snd_soc_pcm_stream dsp_codec_params = { 185 .formats = SNDRV_PCM_FMTBIT_S32_LE, 186 .rate_min = 48000, 187 .rate_max = 48000, 188 .channels_min = 2, 189 .channels_max = 2, 190 }; 191 192 static struct snd_soc_dai_link speyside_dai[] = { 193 { 194 .name = "CPU-DSP", 195 .stream_name = "CPU-DSP", 196 .cpu_dai_name = "samsung-i2s.0", 197 .codec_dai_name = "wm0010-sdi1", 198 .platform_name = "samsung-i2s.0", 199 .codec_name = "spi0.0", 200 .init = speyside_wm0010_init, 201 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 202 | SND_SOC_DAIFMT_CBM_CFM, 203 }, 204 { 205 .name = "DSP-CODEC", 206 .stream_name = "DSP-CODEC", 207 .cpu_dai_name = "wm0010-sdi2", 208 .codec_dai_name = "wm8996-aif1", 209 .codec_name = "wm8996.1-001a", 210 .init = speyside_wm8996_init, 211 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 212 | SND_SOC_DAIFMT_CBM_CFM, 213 .params = &dsp_codec_params, 214 .ignore_suspend = 1, 215 }, 216 { 217 .name = "Baseband", 218 .stream_name = "Baseband", 219 .cpu_dai_name = "wm8996-aif2", 220 .codec_dai_name = "wm1250-ev1", 221 .codec_name = "wm1250-ev1.1-0027", 222 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 223 | SND_SOC_DAIFMT_CBM_CFM, 224 .ignore_suspend = 1, 225 }, 226 }; 227 228 static int speyside_wm9081_init(struct snd_soc_component *component) 229 { 230 /* At any time the WM9081 is active it will have this clock */ 231 return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0, 232 MCLK_AUDIO_RATE, 0); 233 } 234 235 static struct snd_soc_aux_dev speyside_aux_dev[] = { 236 { 237 .name = "wm9081", 238 .codec_name = "wm9081.1-006c", 239 .init = speyside_wm9081_init, 240 }, 241 }; 242 243 static struct snd_soc_codec_conf speyside_codec_conf[] = { 244 { 245 .dev_name = "wm9081.1-006c", 246 .name_prefix = "Sub", 247 }, 248 }; 249 250 static const struct snd_kcontrol_new controls[] = { 251 SOC_DAPM_PIN_SWITCH("Main Speaker"), 252 SOC_DAPM_PIN_SWITCH("Main DMIC"), 253 SOC_DAPM_PIN_SWITCH("Main AMIC"), 254 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 255 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 256 SOC_DAPM_PIN_SWITCH("Headphone"), 257 }; 258 259 static struct snd_soc_dapm_widget widgets[] = { 260 SND_SOC_DAPM_HP("Headphone", NULL), 261 SND_SOC_DAPM_MIC("Headset Mic", NULL), 262 263 SND_SOC_DAPM_SPK("Main Speaker", NULL), 264 265 SND_SOC_DAPM_MIC("Main AMIC", NULL), 266 SND_SOC_DAPM_MIC("Main DMIC", NULL), 267 }; 268 269 static struct snd_soc_dapm_route audio_paths[] = { 270 { "IN1RN", NULL, "MICB1" }, 271 { "IN1RP", NULL, "MICB1" }, 272 { "IN1RN", NULL, "MICB2" }, 273 { "IN1RP", NULL, "MICB2" }, 274 { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, 275 { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, 276 277 { "IN1LP", NULL, "MICB2" }, 278 { "IN1RN", NULL, "MICB1" }, 279 { "MICB2", NULL, "Main AMIC" }, 280 281 { "DMIC1DAT", NULL, "MICB1" }, 282 { "DMIC2DAT", NULL, "MICB1" }, 283 { "MICB1", NULL, "Main DMIC" }, 284 285 { "Headphone", NULL, "HPOUT1L" }, 286 { "Headphone", NULL, "HPOUT1R" }, 287 288 { "Sub IN1", NULL, "HPOUT2L" }, 289 { "Sub IN2", NULL, "HPOUT2R" }, 290 291 { "Main Speaker", NULL, "Sub SPKN" }, 292 { "Main Speaker", NULL, "Sub SPKP" }, 293 { "Main Speaker", NULL, "SPKDAT" }, 294 }; 295 296 static struct snd_soc_card speyside = { 297 .name = "Speyside", 298 .owner = THIS_MODULE, 299 .dai_link = speyside_dai, 300 .num_links = ARRAY_SIZE(speyside_dai), 301 .aux_dev = speyside_aux_dev, 302 .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), 303 .codec_conf = speyside_codec_conf, 304 .num_configs = ARRAY_SIZE(speyside_codec_conf), 305 306 .set_bias_level = speyside_set_bias_level, 307 .set_bias_level_post = speyside_set_bias_level_post, 308 309 .controls = controls, 310 .num_controls = ARRAY_SIZE(controls), 311 .dapm_widgets = widgets, 312 .num_dapm_widgets = ARRAY_SIZE(widgets), 313 .dapm_routes = audio_paths, 314 .num_dapm_routes = ARRAY_SIZE(audio_paths), 315 .fully_routed = true, 316 317 .late_probe = speyside_late_probe, 318 }; 319 320 static int speyside_probe(struct platform_device *pdev) 321 { 322 struct snd_soc_card *card = &speyside; 323 int ret; 324 325 card->dev = &pdev->dev; 326 327 ret = devm_snd_soc_register_card(&pdev->dev, card); 328 if (ret) 329 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", 330 ret); 331 332 return ret; 333 } 334 335 static struct platform_driver speyside_driver = { 336 .driver = { 337 .name = "speyside", 338 .pm = &snd_soc_pm_ops, 339 }, 340 .probe = speyside_probe, 341 }; 342 343 module_platform_driver(speyside_driver); 344 345 MODULE_DESCRIPTION("Speyside audio support"); 346 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 347 MODULE_LICENSE("GPL"); 348 MODULE_ALIAS("platform:speyside"); 349