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 struct snd_soc_pcm_runtime *rtd; 45 46 list_for_each_entry(rtd, &card->rtd_list, list) { 47 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI, 48 strlen(CHT_CODEC_DAI))) 49 return rtd->codec_dai; 50 } 51 return NULL; 52 } 53 54 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 55 SND_SOC_DAPM_HP("Headphone", NULL), 56 SND_SOC_DAPM_MIC("Headset Mic", NULL), 57 SND_SOC_DAPM_MIC("Int Mic", NULL), 58 SND_SOC_DAPM_SPK("Ext Spk", NULL), 59 }; 60 61 static const struct snd_soc_dapm_route cht_audio_map[] = { 62 {"IN34", NULL, "Headset Mic"}, 63 {"Headset Mic", NULL, "MICBIAS"}, 64 {"DMICL", NULL, "Int Mic"}, 65 {"Headphone", NULL, "HPL"}, 66 {"Headphone", NULL, "HPR"}, 67 {"Ext Spk", NULL, "SPKL"}, 68 {"Ext Spk", NULL, "SPKR"}, 69 {"HiFi Playback", NULL, "ssp2 Tx"}, 70 {"ssp2 Tx", NULL, "codec_out0"}, 71 {"ssp2 Tx", NULL, "codec_out1"}, 72 {"codec_in0", NULL, "ssp2 Rx" }, 73 {"codec_in1", NULL, "ssp2 Rx" }, 74 {"ssp2 Rx", NULL, "HiFi Capture"}, 75 }; 76 77 static const struct snd_kcontrol_new cht_mc_controls[] = { 78 SOC_DAPM_PIN_SWITCH("Headphone"), 79 SOC_DAPM_PIN_SWITCH("Headset Mic"), 80 SOC_DAPM_PIN_SWITCH("Int Mic"), 81 SOC_DAPM_PIN_SWITCH("Ext Spk"), 82 }; 83 84 static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 85 struct snd_pcm_hw_params *params) 86 { 87 struct snd_soc_pcm_runtime *rtd = substream->private_data; 88 struct snd_soc_dai *codec_dai = rtd->codec_dai; 89 int ret; 90 91 ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK, 92 CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN); 93 if (ret < 0) { 94 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); 95 return ret; 96 } 97 98 return 0; 99 } 100 101 static int cht_ti_jack_event(struct notifier_block *nb, 102 unsigned long event, void *data) 103 { 104 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 105 struct snd_soc_dapm_context *dapm = &jack->card->dapm; 106 107 if (event & SND_JACK_MICROPHONE) { 108 snd_soc_dapm_force_enable_pin(dapm, "SHDN"); 109 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); 110 snd_soc_dapm_sync(dapm); 111 } else { 112 snd_soc_dapm_disable_pin(dapm, "MICBIAS"); 113 snd_soc_dapm_disable_pin(dapm, "SHDN"); 114 snd_soc_dapm_sync(dapm); 115 } 116 117 return 0; 118 } 119 120 static struct notifier_block cht_jack_nb = { 121 .notifier_call = cht_ti_jack_event, 122 }; 123 124 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 125 { 126 int ret; 127 int jack_type; 128 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 129 struct snd_soc_jack *jack = &ctx->jack; 130 131 /** 132 * TI supports 4 butons headset detection 133 * KEY_MEDIA 134 * KEY_VOICECOMMAND 135 * KEY_VOLUMEUP 136 * KEY_VOLUMEDOWN 137 */ 138 if (ctx->ts3a227e_present) 139 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 140 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 141 SND_JACK_BTN_2 | SND_JACK_BTN_3; 142 else 143 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 144 145 ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", 146 jack_type, jack, NULL, 0); 147 148 if (ret) { 149 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); 150 return ret; 151 } 152 153 if (ctx->ts3a227e_present) 154 snd_soc_jack_notifier_register(jack, &cht_jack_nb); 155 156 return ret; 157 } 158 159 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 160 struct snd_pcm_hw_params *params) 161 { 162 struct snd_interval *rate = hw_param_interval(params, 163 SNDRV_PCM_HW_PARAM_RATE); 164 struct snd_interval *channels = hw_param_interval(params, 165 SNDRV_PCM_HW_PARAM_CHANNELS); 166 int ret = 0; 167 unsigned int fmt = 0; 168 169 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); 170 if (ret < 0) { 171 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); 172 return ret; 173 } 174 175 fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF 176 | SND_SOC_DAIFMT_CBS_CFS; 177 178 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); 179 if (ret < 0) { 180 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); 181 return ret; 182 } 183 184 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 185 rate->min = rate->max = 48000; 186 channels->min = channels->max = 2; 187 188 /* set SSP2 to 24-bit */ 189 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 190 return 0; 191 } 192 193 static int cht_aif1_startup(struct snd_pcm_substream *substream) 194 { 195 return snd_pcm_hw_constraint_single(substream->runtime, 196 SNDRV_PCM_HW_PARAM_RATE, 48000); 197 } 198 199 static int cht_max98090_headset_init(struct snd_soc_component *component) 200 { 201 struct snd_soc_card *card = component->card; 202 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); 203 204 return ts3a227e_enable_jack_detect(component, &ctx->jack); 205 } 206 207 static struct snd_soc_ops cht_aif1_ops = { 208 .startup = cht_aif1_startup, 209 }; 210 211 static struct snd_soc_ops cht_be_ssp2_ops = { 212 .hw_params = cht_aif1_hw_params, 213 }; 214 215 static struct snd_soc_aux_dev cht_max98090_headset_dev = { 216 .name = "Headset Chip", 217 .init = cht_max98090_headset_init, 218 .codec_name = "i2c-104C227E:00", 219 }; 220 221 static struct snd_soc_dai_link cht_dailink[] = { 222 [MERR_DPCM_AUDIO] = { 223 .name = "Audio Port", 224 .stream_name = "Audio", 225 .cpu_dai_name = "media-cpu-dai", 226 .codec_dai_name = "snd-soc-dummy-dai", 227 .codec_name = "snd-soc-dummy", 228 .platform_name = "sst-mfld-platform", 229 .nonatomic = true, 230 .dynamic = 1, 231 .dpcm_playback = 1, 232 .dpcm_capture = 1, 233 .ops = &cht_aif1_ops, 234 }, 235 [MERR_DPCM_DEEP_BUFFER] = { 236 .name = "Deep-Buffer Audio Port", 237 .stream_name = "Deep-Buffer Audio", 238 .cpu_dai_name = "deepbuffer-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 .ops = &cht_aif1_ops, 246 }, 247 [MERR_DPCM_COMPR] = { 248 .name = "Compressed Port", 249 .stream_name = "Compress", 250 .cpu_dai_name = "compress-cpu-dai", 251 .codec_dai_name = "snd-soc-dummy-dai", 252 .codec_name = "snd-soc-dummy", 253 .platform_name = "sst-mfld-platform", 254 }, 255 /* back ends */ 256 { 257 .name = "SSP2-Codec", 258 .id = 1, 259 .cpu_dai_name = "ssp2-port", 260 .platform_name = "sst-mfld-platform", 261 .no_pcm = 1, 262 .codec_dai_name = "HiFi", 263 .codec_name = "i2c-193C9890:00", 264 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 265 | SND_SOC_DAIFMT_CBS_CFS, 266 .init = cht_codec_init, 267 .be_hw_params_fixup = cht_codec_fixup, 268 .dpcm_playback = 1, 269 .dpcm_capture = 1, 270 .ops = &cht_be_ssp2_ops, 271 }, 272 }; 273 274 /* SoC card */ 275 static struct snd_soc_card snd_soc_card_cht = { 276 .name = "chtmax98090", 277 .owner = THIS_MODULE, 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 int snd_cht_mc_probe(struct platform_device *pdev) 291 { 292 int ret_val = 0; 293 struct cht_mc_private *drv; 294 295 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); 296 if (!drv) 297 return -ENOMEM; 298 299 drv->ts3a227e_present = acpi_dev_found("104C227E"); 300 if (!drv->ts3a227e_present) { 301 /* no need probe TI jack detection chip */ 302 snd_soc_card_cht.aux_dev = NULL; 303 snd_soc_card_cht.num_aux_devs = 0; 304 } 305 306 /* register the soc card */ 307 snd_soc_card_cht.dev = &pdev->dev; 308 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); 309 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); 310 if (ret_val) { 311 dev_err(&pdev->dev, 312 "snd_soc_register_card failed %d\n", ret_val); 313 return ret_val; 314 } 315 platform_set_drvdata(pdev, &snd_soc_card_cht); 316 return ret_val; 317 } 318 319 static struct platform_driver snd_cht_mc_driver = { 320 .driver = { 321 .name = "cht-bsw-max98090", 322 }, 323 .probe = snd_cht_mc_probe, 324 }; 325 326 module_platform_driver(snd_cht_mc_driver) 327 328 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 329 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>"); 330 MODULE_LICENSE("GPL v2"); 331 MODULE_ALIAS("platform:cht-bsw-max98090"); 332