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 {"AIF1 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, "AIF1 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 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 108 struct snd_soc_dapm_context *dapm = &jack->card->dapm; 109 110 if (event & SND_JACK_MICROPHONE) { 111 snd_soc_dapm_force_enable_pin(dapm, "SHDN"); 112 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); 113 snd_soc_dapm_sync(dapm); 114 } else { 115 snd_soc_dapm_disable_pin(dapm, "MICBIAS"); 116 snd_soc_dapm_disable_pin(dapm, "SHDN"); 117 snd_soc_dapm_sync(dapm); 118 } 119 120 return 0; 121 } 122 123 static struct notifier_block cht_jack_nb = { 124 .notifier_call = cht_ti_jack_event, 125 }; 126 127 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 128 { 129 int ret; 130 int jack_type; 131 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 132 struct snd_soc_jack *jack = &ctx->jack; 133 134 /** 135 * TI supports 4 butons headset detection 136 * KEY_MEDIA 137 * KEY_VOICECOMMAND 138 * KEY_VOLUMEUP 139 * KEY_VOLUMEDOWN 140 */ 141 if (ctx->ts3a227e_present) 142 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 143 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 144 SND_JACK_BTN_2 | SND_JACK_BTN_3; 145 else 146 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 147 148 ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", 149 jack_type, jack, NULL, 0); 150 151 if (ret) { 152 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); 153 return ret; 154 } 155 156 if (ctx->ts3a227e_present) 157 snd_soc_jack_notifier_register(jack, &cht_jack_nb); 158 159 return ret; 160 } 161 162 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 163 struct snd_pcm_hw_params *params) 164 { 165 struct snd_interval *rate = hw_param_interval(params, 166 SNDRV_PCM_HW_PARAM_RATE); 167 struct snd_interval *channels = hw_param_interval(params, 168 SNDRV_PCM_HW_PARAM_CHANNELS); 169 int ret = 0; 170 unsigned int fmt = 0; 171 172 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); 173 if (ret < 0) { 174 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); 175 return ret; 176 } 177 178 fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF 179 | SND_SOC_DAIFMT_CBS_CFS; 180 181 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); 182 if (ret < 0) { 183 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); 184 return ret; 185 } 186 187 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 188 rate->min = rate->max = 48000; 189 channels->min = channels->max = 2; 190 191 /* set SSP2 to 24-bit */ 192 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 193 return 0; 194 } 195 196 static unsigned int rates_48000[] = { 197 48000, 198 }; 199 200 static struct snd_pcm_hw_constraint_list constraints_48000 = { 201 .count = ARRAY_SIZE(rates_48000), 202 .list = rates_48000, 203 }; 204 205 static int cht_aif1_startup(struct snd_pcm_substream *substream) 206 { 207 return snd_pcm_hw_constraint_list(substream->runtime, 0, 208 SNDRV_PCM_HW_PARAM_RATE, 209 &constraints_48000); 210 } 211 212 static int cht_max98090_headset_init(struct snd_soc_component *component) 213 { 214 struct snd_soc_card *card = component->card; 215 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); 216 217 return ts3a227e_enable_jack_detect(component, &ctx->jack); 218 } 219 220 static struct snd_soc_ops cht_aif1_ops = { 221 .startup = cht_aif1_startup, 222 }; 223 224 static struct snd_soc_ops cht_be_ssp2_ops = { 225 .hw_params = cht_aif1_hw_params, 226 }; 227 228 static struct snd_soc_aux_dev cht_max98090_headset_dev = { 229 .name = "Headset Chip", 230 .init = cht_max98090_headset_init, 231 .codec_name = "i2c-104C227E:00", 232 }; 233 234 static struct snd_soc_dai_link cht_dailink[] = { 235 [MERR_DPCM_AUDIO] = { 236 .name = "Audio Port", 237 .stream_name = "Audio", 238 .cpu_dai_name = "media-cpu-dai", 239 .codec_dai_name = "snd-soc-dummy-dai", 240 .codec_name = "snd-soc-dummy", 241 .platform_name = "sst-mfld-platform", 242 .nonatomic = true, 243 .dynamic = 1, 244 .dpcm_playback = 1, 245 .dpcm_capture = 1, 246 .ops = &cht_aif1_ops, 247 }, 248 [MERR_DPCM_COMPR] = { 249 .name = "Compressed Port", 250 .stream_name = "Compress", 251 .cpu_dai_name = "compress-cpu-dai", 252 .codec_dai_name = "snd-soc-dummy-dai", 253 .codec_name = "snd-soc-dummy", 254 .platform_name = "sst-mfld-platform", 255 }, 256 /* back ends */ 257 { 258 .name = "SSP2-Codec", 259 .be_id = 1, 260 .cpu_dai_name = "ssp2-port", 261 .platform_name = "sst-mfld-platform", 262 .no_pcm = 1, 263 .codec_dai_name = "HiFi", 264 .codec_name = "i2c-193C9890:00", 265 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 266 | SND_SOC_DAIFMT_CBS_CFS, 267 .init = cht_codec_init, 268 .be_hw_params_fixup = cht_codec_fixup, 269 .dpcm_playback = 1, 270 .dpcm_capture = 1, 271 .ops = &cht_be_ssp2_ops, 272 }, 273 }; 274 275 /* SoC card */ 276 static struct snd_soc_card snd_soc_card_cht = { 277 .name = "chtmax98090", 278 .dai_link = cht_dailink, 279 .num_links = ARRAY_SIZE(cht_dailink), 280 .aux_dev = &cht_max98090_headset_dev, 281 .num_aux_devs = 1, 282 .dapm_widgets = cht_dapm_widgets, 283 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 284 .dapm_routes = cht_audio_map, 285 .num_dapm_routes = ARRAY_SIZE(cht_audio_map), 286 .controls = cht_mc_controls, 287 .num_controls = ARRAY_SIZE(cht_mc_controls), 288 }; 289 290 static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level, 291 void *context, void **ret) 292 { 293 *(bool *)context = true; 294 return AE_OK; 295 } 296 297 static int snd_cht_mc_probe(struct platform_device *pdev) 298 { 299 int ret_val = 0; 300 bool found = false; 301 struct cht_mc_private *drv; 302 303 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); 304 if (!drv) 305 return -ENOMEM; 306 307 if (ACPI_SUCCESS(acpi_get_devices( 308 "104C227E", 309 snd_acpi_codec_match, 310 &found, NULL)) && found) { 311 drv->ts3a227e_present = true; 312 } else { 313 /* no need probe TI jack detection chip */ 314 snd_soc_card_cht.aux_dev = NULL; 315 snd_soc_card_cht.num_aux_devs = 0; 316 drv->ts3a227e_present = false; 317 } 318 319 /* register the soc card */ 320 snd_soc_card_cht.dev = &pdev->dev; 321 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); 322 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); 323 if (ret_val) { 324 dev_err(&pdev->dev, 325 "snd_soc_register_card failed %d\n", ret_val); 326 return ret_val; 327 } 328 platform_set_drvdata(pdev, &snd_soc_card_cht); 329 return ret_val; 330 } 331 332 static struct platform_driver snd_cht_mc_driver = { 333 .driver = { 334 .name = "cht-bsw-max98090", 335 }, 336 .probe = snd_cht_mc_probe, 337 }; 338 339 module_platform_driver(snd_cht_mc_driver) 340 341 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 342 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>"); 343 MODULE_LICENSE("GPL v2"); 344 MODULE_ALIAS("platform:cht-bsw-max98090"); 345