| 1 | /* |
| 2 | * Speyside audio support |
| 3 | * |
| 4 | * Copyright 2011 Wolfson Microelectronics |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your |
| 9 | * option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #include <sound/soc.h> |
| 13 | #include <sound/soc-dapm.h> |
| 14 | #include <sound/jack.h> |
| 15 | #include <linux/gpio.h> |
| 16 | #include <linux/module.h> |
| 17 | |
| 18 | #include "../codecs/wm8996.h" |
| 19 | #include "../codecs/wm9081.h" |
| 20 | |
| 21 | #define WM8996_HPSEL_GPIO 214 |
| 22 | #define MCLK_AUDIO_RATE (512 * 48000) |
| 23 | |
| 24 | static int speyside_set_bias_level(struct snd_soc_card *card, |
| 25 | struct snd_soc_dapm_context *dapm, |
| 26 | enum snd_soc_bias_level level) |
| 27 | { |
| 28 | struct snd_soc_pcm_runtime *rtd; |
| 29 | struct snd_soc_dai *codec_dai; |
| 30 | int ret; |
| 31 | |
| 32 | rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name); |
| 33 | codec_dai = rtd->codec_dai; |
| 34 | |
| 35 | if (dapm->dev != codec_dai->dev) |
| 36 | return 0; |
| 37 | |
| 38 | switch (level) { |
| 39 | case SND_SOC_BIAS_STANDBY: |
| 40 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8996_SYSCLK_MCLK2, |
| 41 | 32768, SND_SOC_CLOCK_IN); |
| 42 | if (ret < 0) |
| 43 | return ret; |
| 44 | |
| 45 | ret = snd_soc_dai_set_pll(codec_dai, WM8996_FLL_MCLK2, |
| 46 | 0, 0, 0); |
| 47 | if (ret < 0) { |
| 48 | pr_err("Failed to stop FLL\n"); |
| 49 | return ret; |
| 50 | } |
| 51 | break; |
| 52 | |
| 53 | default: |
| 54 | break; |
| 55 | } |
| 56 | |
| 57 | return 0; |
| 58 | } |
| 59 | |
| 60 | static int speyside_set_bias_level_post(struct snd_soc_card *card, |
| 61 | struct snd_soc_dapm_context *dapm, |
| 62 | enum snd_soc_bias_level level) |
| 63 | { |
| 64 | struct snd_soc_pcm_runtime *rtd; |
| 65 | struct snd_soc_dai *codec_dai; |
| 66 | int ret; |
| 67 | |
| 68 | rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name); |
| 69 | codec_dai = rtd->codec_dai; |
| 70 | |
| 71 | if (dapm->dev != codec_dai->dev) |
| 72 | return 0; |
| 73 | |
| 74 | switch (level) { |
| 75 | case SND_SOC_BIAS_PREPARE: |
| 76 | if (card->dapm.bias_level == SND_SOC_BIAS_STANDBY) { |
| 77 | ret = snd_soc_dai_set_pll(codec_dai, 0, |
| 78 | WM8996_FLL_MCLK2, |
| 79 | 32768, MCLK_AUDIO_RATE); |
| 80 | if (ret < 0) { |
| 81 | pr_err("Failed to start FLL\n"); |
| 82 | return ret; |
| 83 | } |
| 84 | |
| 85 | ret = snd_soc_dai_set_sysclk(codec_dai, |
| 86 | WM8996_SYSCLK_FLL, |
| 87 | MCLK_AUDIO_RATE, |
| 88 | SND_SOC_CLOCK_IN); |
| 89 | if (ret < 0) |
| 90 | return ret; |
| 91 | } |
| 92 | break; |
| 93 | |
| 94 | default: |
| 95 | break; |
| 96 | } |
| 97 | |
| 98 | card->dapm.bias_level = level; |
| 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | static struct snd_soc_jack speyside_headset; |
| 104 | |
| 105 | /* Headset jack detection DAPM pins */ |
| 106 | static struct snd_soc_jack_pin speyside_headset_pins[] = { |
| 107 | { |
| 108 | .pin = "Headset Mic", |
| 109 | .mask = SND_JACK_MICROPHONE, |
| 110 | }, |
| 111 | }; |
| 112 | |
| 113 | /* Default the headphone selection to active high */ |
| 114 | static int speyside_jack_polarity; |
| 115 | |
| 116 | static int speyside_get_micbias(struct snd_soc_dapm_widget *source, |
| 117 | struct snd_soc_dapm_widget *sink) |
| 118 | { |
| 119 | if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0)) |
| 120 | return 1; |
| 121 | if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0)) |
| 122 | return 1; |
| 123 | |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | static void speyside_set_polarity(struct snd_soc_codec *codec, |
| 128 | int polarity) |
| 129 | { |
| 130 | speyside_jack_polarity = !polarity; |
| 131 | gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); |
| 132 | |
| 133 | /* Re-run DAPM to make sure we're using the correct mic bias */ |
| 134 | snd_soc_dapm_sync(snd_soc_codec_get_dapm(codec)); |
| 135 | } |
| 136 | |
| 137 | static int speyside_wm0010_init(struct snd_soc_pcm_runtime *rtd) |
| 138 | { |
| 139 | struct snd_soc_dai *dai = rtd->codec_dai; |
| 140 | int ret; |
| 141 | |
| 142 | ret = snd_soc_dai_set_sysclk(dai, 0, MCLK_AUDIO_RATE, 0); |
| 143 | if (ret < 0) |
| 144 | return ret; |
| 145 | |
| 146 | return 0; |
| 147 | } |
| 148 | |
| 149 | static int speyside_wm8996_init(struct snd_soc_pcm_runtime *rtd) |
| 150 | { |
| 151 | struct snd_soc_dai *dai = rtd->codec_dai; |
| 152 | struct snd_soc_codec *codec = rtd->codec; |
| 153 | int ret; |
| 154 | |
| 155 | ret = snd_soc_dai_set_sysclk(dai, WM8996_SYSCLK_MCLK2, 32768, 0); |
| 156 | if (ret < 0) |
| 157 | return ret; |
| 158 | |
| 159 | ret = gpio_request(WM8996_HPSEL_GPIO, "HP_SEL"); |
| 160 | if (ret != 0) |
| 161 | pr_err("Failed to request HP_SEL GPIO: %d\n", ret); |
| 162 | gpio_direction_output(WM8996_HPSEL_GPIO, speyside_jack_polarity); |
| 163 | |
| 164 | ret = snd_soc_card_jack_new(rtd->card, "Headset", SND_JACK_LINEOUT | |
| 165 | SND_JACK_HEADSET | SND_JACK_BTN_0, |
| 166 | &speyside_headset, speyside_headset_pins, |
| 167 | ARRAY_SIZE(speyside_headset_pins)); |
| 168 | if (ret) |
| 169 | return ret; |
| 170 | |
| 171 | wm8996_detect(codec, &speyside_headset, speyside_set_polarity); |
| 172 | |
| 173 | return 0; |
| 174 | } |
| 175 | |
| 176 | static int speyside_late_probe(struct snd_soc_card *card) |
| 177 | { |
| 178 | snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); |
| 179 | snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic"); |
| 180 | snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC"); |
| 181 | snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC"); |
| 182 | snd_soc_dapm_ignore_suspend(&card->dapm, "Main Speaker"); |
| 183 | snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output"); |
| 184 | snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input"); |
| 185 | |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | static const struct snd_soc_pcm_stream dsp_codec_params = { |
| 190 | .formats = SNDRV_PCM_FMTBIT_S32_LE, |
| 191 | .rate_min = 48000, |
| 192 | .rate_max = 48000, |
| 193 | .channels_min = 2, |
| 194 | .channels_max = 2, |
| 195 | }; |
| 196 | |
| 197 | static struct snd_soc_dai_link speyside_dai[] = { |
| 198 | { |
| 199 | .name = "CPU-DSP", |
| 200 | .stream_name = "CPU-DSP", |
| 201 | .cpu_dai_name = "samsung-i2s.0", |
| 202 | .codec_dai_name = "wm0010-sdi1", |
| 203 | .platform_name = "samsung-i2s.0", |
| 204 | .codec_name = "spi0.0", |
| 205 | .init = speyside_wm0010_init, |
| 206 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
| 207 | | SND_SOC_DAIFMT_CBM_CFM, |
| 208 | }, |
| 209 | { |
| 210 | .name = "DSP-CODEC", |
| 211 | .stream_name = "DSP-CODEC", |
| 212 | .cpu_dai_name = "wm0010-sdi2", |
| 213 | .codec_dai_name = "wm8996-aif1", |
| 214 | .codec_name = "wm8996.1-001a", |
| 215 | .init = speyside_wm8996_init, |
| 216 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
| 217 | | SND_SOC_DAIFMT_CBM_CFM, |
| 218 | .params = &dsp_codec_params, |
| 219 | .ignore_suspend = 1, |
| 220 | }, |
| 221 | { |
| 222 | .name = "Baseband", |
| 223 | .stream_name = "Baseband", |
| 224 | .cpu_dai_name = "wm8996-aif2", |
| 225 | .codec_dai_name = "wm1250-ev1", |
| 226 | .codec_name = "wm1250-ev1.1-0027", |
| 227 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
| 228 | | SND_SOC_DAIFMT_CBM_CFM, |
| 229 | .ignore_suspend = 1, |
| 230 | }, |
| 231 | }; |
| 232 | |
| 233 | static int speyside_wm9081_init(struct snd_soc_component *component) |
| 234 | { |
| 235 | struct snd_soc_codec *codec = snd_soc_component_to_codec(component); |
| 236 | |
| 237 | /* At any time the WM9081 is active it will have this clock */ |
| 238 | return snd_soc_codec_set_sysclk(codec, WM9081_SYSCLK_MCLK, 0, |
| 239 | MCLK_AUDIO_RATE, 0); |
| 240 | } |
| 241 | |
| 242 | static struct snd_soc_aux_dev speyside_aux_dev[] = { |
| 243 | { |
| 244 | .name = "wm9081", |
| 245 | .codec_name = "wm9081.1-006c", |
| 246 | .init = speyside_wm9081_init, |
| 247 | }, |
| 248 | }; |
| 249 | |
| 250 | static struct snd_soc_codec_conf speyside_codec_conf[] = { |
| 251 | { |
| 252 | .dev_name = "wm9081.1-006c", |
| 253 | .name_prefix = "Sub", |
| 254 | }, |
| 255 | }; |
| 256 | |
| 257 | static const struct snd_kcontrol_new controls[] = { |
| 258 | SOC_DAPM_PIN_SWITCH("Main Speaker"), |
| 259 | SOC_DAPM_PIN_SWITCH("Main DMIC"), |
| 260 | SOC_DAPM_PIN_SWITCH("Main AMIC"), |
| 261 | SOC_DAPM_PIN_SWITCH("WM1250 Input"), |
| 262 | SOC_DAPM_PIN_SWITCH("WM1250 Output"), |
| 263 | SOC_DAPM_PIN_SWITCH("Headphone"), |
| 264 | }; |
| 265 | |
| 266 | static struct snd_soc_dapm_widget widgets[] = { |
| 267 | SND_SOC_DAPM_HP("Headphone", NULL), |
| 268 | SND_SOC_DAPM_MIC("Headset Mic", NULL), |
| 269 | |
| 270 | SND_SOC_DAPM_SPK("Main Speaker", NULL), |
| 271 | |
| 272 | SND_SOC_DAPM_MIC("Main AMIC", NULL), |
| 273 | SND_SOC_DAPM_MIC("Main DMIC", NULL), |
| 274 | }; |
| 275 | |
| 276 | static struct snd_soc_dapm_route audio_paths[] = { |
| 277 | { "IN1RN", NULL, "MICB1" }, |
| 278 | { "IN1RP", NULL, "MICB1" }, |
| 279 | { "IN1RN", NULL, "MICB2" }, |
| 280 | { "IN1RP", NULL, "MICB2" }, |
| 281 | { "MICB1", NULL, "Headset Mic", speyside_get_micbias }, |
| 282 | { "MICB2", NULL, "Headset Mic", speyside_get_micbias }, |
| 283 | |
| 284 | { "IN1LP", NULL, "MICB2" }, |
| 285 | { "IN1RN", NULL, "MICB1" }, |
| 286 | { "MICB2", NULL, "Main AMIC" }, |
| 287 | |
| 288 | { "DMIC1DAT", NULL, "MICB1" }, |
| 289 | { "DMIC2DAT", NULL, "MICB1" }, |
| 290 | { "MICB1", NULL, "Main DMIC" }, |
| 291 | |
| 292 | { "Headphone", NULL, "HPOUT1L" }, |
| 293 | { "Headphone", NULL, "HPOUT1R" }, |
| 294 | |
| 295 | { "Sub IN1", NULL, "HPOUT2L" }, |
| 296 | { "Sub IN2", NULL, "HPOUT2R" }, |
| 297 | |
| 298 | { "Main Speaker", NULL, "Sub SPKN" }, |
| 299 | { "Main Speaker", NULL, "Sub SPKP" }, |
| 300 | { "Main Speaker", NULL, "SPKDAT" }, |
| 301 | }; |
| 302 | |
| 303 | static struct snd_soc_card speyside = { |
| 304 | .name = "Speyside", |
| 305 | .owner = THIS_MODULE, |
| 306 | .dai_link = speyside_dai, |
| 307 | .num_links = ARRAY_SIZE(speyside_dai), |
| 308 | .aux_dev = speyside_aux_dev, |
| 309 | .num_aux_devs = ARRAY_SIZE(speyside_aux_dev), |
| 310 | .codec_conf = speyside_codec_conf, |
| 311 | .num_configs = ARRAY_SIZE(speyside_codec_conf), |
| 312 | |
| 313 | .set_bias_level = speyside_set_bias_level, |
| 314 | .set_bias_level_post = speyside_set_bias_level_post, |
| 315 | |
| 316 | .controls = controls, |
| 317 | .num_controls = ARRAY_SIZE(controls), |
| 318 | .dapm_widgets = widgets, |
| 319 | .num_dapm_widgets = ARRAY_SIZE(widgets), |
| 320 | .dapm_routes = audio_paths, |
| 321 | .num_dapm_routes = ARRAY_SIZE(audio_paths), |
| 322 | .fully_routed = true, |
| 323 | |
| 324 | .late_probe = speyside_late_probe, |
| 325 | }; |
| 326 | |
| 327 | static int speyside_probe(struct platform_device *pdev) |
| 328 | { |
| 329 | struct snd_soc_card *card = &speyside; |
| 330 | int ret; |
| 331 | |
| 332 | card->dev = &pdev->dev; |
| 333 | |
| 334 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
| 335 | if (ret) |
| 336 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
| 337 | ret); |
| 338 | |
| 339 | return ret; |
| 340 | } |
| 341 | |
| 342 | static struct platform_driver speyside_driver = { |
| 343 | .driver = { |
| 344 | .name = "speyside", |
| 345 | .pm = &snd_soc_pm_ops, |
| 346 | }, |
| 347 | .probe = speyside_probe, |
| 348 | }; |
| 349 | |
| 350 | module_platform_driver(speyside_driver); |
| 351 | |
| 352 | MODULE_DESCRIPTION("Speyside audio support"); |
| 353 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); |
| 354 | MODULE_LICENSE("GPL"); |
| 355 | MODULE_ALIAS("platform:speyside"); |