1 /* 2 * cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based 3 * platforms Cherrytrail and Braswell, with max98090 & TI codec. 4 * 5 * Copyright (C) 2015 Intel Corp 6 * Author: Fang, Yang A <yang.a.fang@intel.com> 7 * This file is modified from cht_bsw_rt5645.c 8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; version 2 of the License. 13 * 14 * This program is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * General Public License for more details. 18 * 19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 20 */ 21 22 #include <linux/module.h> 23 #include <linux/platform_device.h> 24 #include <linux/slab.h> 25 #include <linux/acpi.h> 26 #include <sound/pcm.h> 27 #include <sound/pcm_params.h> 28 #include <sound/soc.h> 29 #include <sound/jack.h> 30 #include "../../codecs/max98090.h" 31 #include "../atom/sst-atom-controls.h" 32 #include "../../codecs/ts3a227e.h" 33 34 #define CHT_PLAT_CLK_3_HZ 19200000 35 #define CHT_CODEC_DAI "HiFi" 36 37 struct cht_mc_private { 38 struct snd_soc_jack jack; 39 bool ts3a227e_present; 40 }; 41 42 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card) 43 { 44 int i; 45 46 for (i = 0; i < card->num_rtd; i++) { 47 struct snd_soc_pcm_runtime *rtd; 48 49 rtd = card->rtd + i; 50 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI, 51 strlen(CHT_CODEC_DAI))) 52 return rtd->codec_dai; 53 } 54 return NULL; 55 } 56 57 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 58 SND_SOC_DAPM_HP("Headphone", NULL), 59 SND_SOC_DAPM_MIC("Headset Mic", NULL), 60 SND_SOC_DAPM_MIC("Int Mic", NULL), 61 SND_SOC_DAPM_SPK("Ext Spk", NULL), 62 }; 63 64 static const struct snd_soc_dapm_route cht_audio_map[] = { 65 {"IN34", NULL, "Headset Mic"}, 66 {"Headset Mic", NULL, "MICBIAS"}, 67 {"DMICL", NULL, "Int Mic"}, 68 {"Headphone", NULL, "HPL"}, 69 {"Headphone", NULL, "HPR"}, 70 {"Ext Spk", NULL, "SPKL"}, 71 {"Ext Spk", NULL, "SPKR"}, 72 {"HiFi Playback", NULL, "ssp2 Tx"}, 73 {"ssp2 Tx", NULL, "codec_out0"}, 74 {"ssp2 Tx", NULL, "codec_out1"}, 75 {"codec_in0", NULL, "ssp2 Rx" }, 76 {"codec_in1", NULL, "ssp2 Rx" }, 77 {"ssp2 Rx", NULL, "HiFi Capture"}, 78 }; 79 80 static const struct snd_kcontrol_new cht_mc_controls[] = { 81 SOC_DAPM_PIN_SWITCH("Headphone"), 82 SOC_DAPM_PIN_SWITCH("Headset Mic"), 83 SOC_DAPM_PIN_SWITCH("Int Mic"), 84 SOC_DAPM_PIN_SWITCH("Ext Spk"), 85 }; 86 87 static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 88 struct snd_pcm_hw_params *params) 89 { 90 struct snd_soc_pcm_runtime *rtd = substream->private_data; 91 struct snd_soc_dai *codec_dai = rtd->codec_dai; 92 int ret; 93 94 ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK, 95 CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN); 96 if (ret < 0) { 97 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); 98 return ret; 99 } 100 101 return 0; 102 } 103 104 static int cht_ti_jack_event(struct notifier_block *nb, 105 unsigned long event, void *data) 106 { 107 108 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 109 struct snd_soc_dai *codec_dai = jack->card->rtd->codec_dai; 110 struct snd_soc_codec *codec = codec_dai->codec; 111 112 if (event & SND_JACK_MICROPHONE) { 113 114 snd_soc_dapm_force_enable_pin(&codec->dapm, "SHDN"); 115 snd_soc_dapm_force_enable_pin(&codec->dapm, "MICBIAS"); 116 snd_soc_dapm_sync(&codec->dapm); 117 } else { 118 119 snd_soc_dapm_disable_pin(&codec->dapm, "MICBIAS"); 120 snd_soc_dapm_disable_pin(&codec->dapm, "SHDN"); 121 snd_soc_dapm_sync(&codec->dapm); 122 } 123 124 return 0; 125 } 126 127 static struct notifier_block cht_jack_nb = { 128 .notifier_call = cht_ti_jack_event, 129 }; 130 131 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 132 { 133 int ret; 134 int jack_type; 135 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 136 struct snd_soc_jack *jack = &ctx->jack; 137 138 /** 139 * TI supports 4 butons headset detection 140 * KEY_MEDIA 141 * KEY_VOICECOMMAND 142 * KEY_VOLUMEUP 143 * KEY_VOLUMEDOWN 144 */ 145 if (ctx->ts3a227e_present) 146 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 147 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 148 SND_JACK_BTN_2 | SND_JACK_BTN_3; 149 else 150 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 151 152 ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", 153 jack_type, jack, NULL, 0); 154 155 if (ret) { 156 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); 157 return ret; 158 } 159 160 if (ctx->ts3a227e_present) 161 snd_soc_jack_notifier_register(jack, &cht_jack_nb); 162 163 return ret; 164 } 165 166 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 167 struct snd_pcm_hw_params *params) 168 { 169 struct snd_interval *rate = hw_param_interval(params, 170 SNDRV_PCM_HW_PARAM_RATE); 171 struct snd_interval *channels = hw_param_interval(params, 172 SNDRV_PCM_HW_PARAM_CHANNELS); 173 int ret = 0; 174 unsigned int fmt = 0; 175 176 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); 177 if (ret < 0) { 178 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); 179 return ret; 180 } 181 182 fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF 183 | SND_SOC_DAIFMT_CBS_CFS; 184 185 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); 186 if (ret < 0) { 187 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); 188 return ret; 189 } 190 191 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 192 rate->min = rate->max = 48000; 193 channels->min = channels->max = 2; 194 195 /* set SSP2 to 24-bit */ 196 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 197 return 0; 198 } 199 200 static unsigned int rates_48000[] = { 201 48000, 202 }; 203 204 static struct snd_pcm_hw_constraint_list constraints_48000 = { 205 .count = ARRAY_SIZE(rates_48000), 206 .list = rates_48000, 207 }; 208 209 static int cht_aif1_startup(struct snd_pcm_substream *substream) 210 { 211 return snd_pcm_hw_constraint_list(substream->runtime, 0, 212 SNDRV_PCM_HW_PARAM_RATE, 213 &constraints_48000); 214 } 215 216 static int cht_max98090_headset_init(struct snd_soc_component *component) 217 { 218 struct snd_soc_card *card = component->card; 219 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); 220 221 return ts3a227e_enable_jack_detect(component, &ctx->jack); 222 } 223 224 static struct snd_soc_ops cht_aif1_ops = { 225 .startup = cht_aif1_startup, 226 }; 227 228 static struct snd_soc_ops cht_be_ssp2_ops = { 229 .hw_params = cht_aif1_hw_params, 230 }; 231 232 static struct snd_soc_aux_dev cht_max98090_headset_dev = { 233 .name = "Headset Chip", 234 .init = cht_max98090_headset_init, 235 .codec_name = "i2c-104C227E:00", 236 }; 237 238 static struct snd_soc_dai_link cht_dailink[] = { 239 [MERR_DPCM_AUDIO] = { 240 .name = "Audio Port", 241 .stream_name = "Audio", 242 .cpu_dai_name = "media-cpu-dai", 243 .codec_dai_name = "snd-soc-dummy-dai", 244 .codec_name = "snd-soc-dummy", 245 .platform_name = "sst-mfld-platform", 246 .nonatomic = true, 247 .dynamic = 1, 248 .dpcm_playback = 1, 249 .dpcm_capture = 1, 250 .ops = &cht_aif1_ops, 251 }, 252 [MERR_DPCM_COMPR] = { 253 .name = "Compressed Port", 254 .stream_name = "Compress", 255 .cpu_dai_name = "compress-cpu-dai", 256 .codec_dai_name = "snd-soc-dummy-dai", 257 .codec_name = "snd-soc-dummy", 258 .platform_name = "sst-mfld-platform", 259 }, 260 /* back ends */ 261 { 262 .name = "SSP2-Codec", 263 .be_id = 1, 264 .cpu_dai_name = "ssp2-port", 265 .platform_name = "sst-mfld-platform", 266 .no_pcm = 1, 267 .codec_dai_name = "HiFi", 268 .codec_name = "i2c-193C9890:00", 269 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 270 | SND_SOC_DAIFMT_CBS_CFS, 271 .init = cht_codec_init, 272 .be_hw_params_fixup = cht_codec_fixup, 273 .dpcm_playback = 1, 274 .dpcm_capture = 1, 275 .ops = &cht_be_ssp2_ops, 276 }, 277 }; 278 279 /* SoC card */ 280 static struct snd_soc_card snd_soc_card_cht = { 281 .name = "chtmax98090", 282 .dai_link = cht_dailink, 283 .num_links = ARRAY_SIZE(cht_dailink), 284 .aux_dev = &cht_max98090_headset_dev, 285 .num_aux_devs = 1, 286 .dapm_widgets = cht_dapm_widgets, 287 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 288 .dapm_routes = cht_audio_map, 289 .num_dapm_routes = ARRAY_SIZE(cht_audio_map), 290 .controls = cht_mc_controls, 291 .num_controls = ARRAY_SIZE(cht_mc_controls), 292 }; 293 294 static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level, 295 void *context, void **ret) 296 { 297 *(bool *)context = true; 298 return AE_OK; 299 } 300 301 static int snd_cht_mc_probe(struct platform_device *pdev) 302 { 303 int ret_val = 0; 304 bool found = false; 305 struct cht_mc_private *drv; 306 307 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); 308 if (!drv) 309 return -ENOMEM; 310 311 if (ACPI_SUCCESS(acpi_get_devices( 312 "104C227E", 313 snd_acpi_codec_match, 314 &found, NULL)) && found) { 315 drv->ts3a227e_present = true; 316 } else { 317 /* no need probe TI jack detection chip */ 318 snd_soc_card_cht.aux_dev = NULL; 319 snd_soc_card_cht.num_aux_devs = 0; 320 drv->ts3a227e_present = false; 321 } 322 323 /* register the soc card */ 324 snd_soc_card_cht.dev = &pdev->dev; 325 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); 326 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); 327 if (ret_val) { 328 dev_err(&pdev->dev, 329 "snd_soc_register_card failed %d\n", ret_val); 330 return ret_val; 331 } 332 platform_set_drvdata(pdev, &snd_soc_card_cht); 333 return ret_val; 334 } 335 336 static struct platform_driver snd_cht_mc_driver = { 337 .driver = { 338 .name = "cht-bsw-max98090", 339 }, 340 .probe = snd_cht_mc_probe, 341 }; 342 343 module_platform_driver(snd_cht_mc_driver) 344 345 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 346 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>"); 347 MODULE_LICENSE("GPL v2"); 348 MODULE_ALIAS("platform:cht-bsw-max98090"); 349