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 const struct snd_soc_dapm_widget cht_dapm_widgets[] = { 43 SND_SOC_DAPM_HP("Headphone", NULL), 44 SND_SOC_DAPM_MIC("Headset Mic", NULL), 45 SND_SOC_DAPM_MIC("Int Mic", NULL), 46 SND_SOC_DAPM_SPK("Ext Spk", NULL), 47 }; 48 49 static const struct snd_soc_dapm_route cht_audio_map[] = { 50 {"IN34", NULL, "Headset Mic"}, 51 {"Headset Mic", NULL, "MICBIAS"}, 52 {"DMICL", NULL, "Int Mic"}, 53 {"Headphone", NULL, "HPL"}, 54 {"Headphone", NULL, "HPR"}, 55 {"Ext Spk", NULL, "SPKL"}, 56 {"Ext Spk", NULL, "SPKR"}, 57 {"HiFi Playback", NULL, "ssp2 Tx"}, 58 {"ssp2 Tx", NULL, "codec_out0"}, 59 {"ssp2 Tx", NULL, "codec_out1"}, 60 {"codec_in0", NULL, "ssp2 Rx" }, 61 {"codec_in1", NULL, "ssp2 Rx" }, 62 {"ssp2 Rx", NULL, "HiFi Capture"}, 63 }; 64 65 static const struct snd_kcontrol_new cht_mc_controls[] = { 66 SOC_DAPM_PIN_SWITCH("Headphone"), 67 SOC_DAPM_PIN_SWITCH("Headset Mic"), 68 SOC_DAPM_PIN_SWITCH("Int Mic"), 69 SOC_DAPM_PIN_SWITCH("Ext Spk"), 70 }; 71 72 static int cht_aif1_hw_params(struct snd_pcm_substream *substream, 73 struct snd_pcm_hw_params *params) 74 { 75 struct snd_soc_pcm_runtime *rtd = substream->private_data; 76 struct snd_soc_dai *codec_dai = rtd->codec_dai; 77 int ret; 78 79 ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK, 80 CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN); 81 if (ret < 0) { 82 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); 83 return ret; 84 } 85 86 return 0; 87 } 88 89 static int cht_ti_jack_event(struct notifier_block *nb, 90 unsigned long event, void *data) 91 { 92 struct snd_soc_jack *jack = (struct snd_soc_jack *)data; 93 struct snd_soc_dapm_context *dapm = &jack->card->dapm; 94 95 if (event & SND_JACK_MICROPHONE) { 96 snd_soc_dapm_force_enable_pin(dapm, "SHDN"); 97 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); 98 snd_soc_dapm_sync(dapm); 99 } else { 100 snd_soc_dapm_disable_pin(dapm, "MICBIAS"); 101 snd_soc_dapm_disable_pin(dapm, "SHDN"); 102 snd_soc_dapm_sync(dapm); 103 } 104 105 return 0; 106 } 107 108 static struct notifier_block cht_jack_nb = { 109 .notifier_call = cht_ti_jack_event, 110 }; 111 112 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) 113 { 114 int ret; 115 int jack_type; 116 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 117 struct snd_soc_jack *jack = &ctx->jack; 118 119 /** 120 * TI supports 4 butons headset detection 121 * KEY_MEDIA 122 * KEY_VOICECOMMAND 123 * KEY_VOLUMEUP 124 * KEY_VOLUMEDOWN 125 */ 126 if (ctx->ts3a227e_present) 127 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 128 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 129 SND_JACK_BTN_2 | SND_JACK_BTN_3; 130 else 131 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 132 133 ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", 134 jack_type, jack, NULL, 0); 135 136 if (ret) { 137 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); 138 return ret; 139 } 140 141 if (ctx->ts3a227e_present) 142 snd_soc_jack_notifier_register(jack, &cht_jack_nb); 143 144 return ret; 145 } 146 147 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 148 struct snd_pcm_hw_params *params) 149 { 150 struct snd_interval *rate = hw_param_interval(params, 151 SNDRV_PCM_HW_PARAM_RATE); 152 struct snd_interval *channels = hw_param_interval(params, 153 SNDRV_PCM_HW_PARAM_CHANNELS); 154 int ret = 0; 155 unsigned int fmt = 0; 156 157 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); 158 if (ret < 0) { 159 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); 160 return ret; 161 } 162 163 fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF 164 | SND_SOC_DAIFMT_CBS_CFS; 165 166 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); 167 if (ret < 0) { 168 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); 169 return ret; 170 } 171 172 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 173 rate->min = rate->max = 48000; 174 channels->min = channels->max = 2; 175 176 /* set SSP2 to 24-bit */ 177 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 178 return 0; 179 } 180 181 static int cht_aif1_startup(struct snd_pcm_substream *substream) 182 { 183 return snd_pcm_hw_constraint_single(substream->runtime, 184 SNDRV_PCM_HW_PARAM_RATE, 48000); 185 } 186 187 static int cht_max98090_headset_init(struct snd_soc_component *component) 188 { 189 struct snd_soc_card *card = component->card; 190 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); 191 192 return ts3a227e_enable_jack_detect(component, &ctx->jack); 193 } 194 195 static const struct snd_soc_ops cht_aif1_ops = { 196 .startup = cht_aif1_startup, 197 }; 198 199 static const struct snd_soc_ops cht_be_ssp2_ops = { 200 .hw_params = cht_aif1_hw_params, 201 }; 202 203 static struct snd_soc_aux_dev cht_max98090_headset_dev = { 204 .name = "Headset Chip", 205 .init = cht_max98090_headset_init, 206 .codec_name = "i2c-104C227E:00", 207 }; 208 209 static struct snd_soc_dai_link cht_dailink[] = { 210 [MERR_DPCM_AUDIO] = { 211 .name = "Audio Port", 212 .stream_name = "Audio", 213 .cpu_dai_name = "media-cpu-dai", 214 .codec_dai_name = "snd-soc-dummy-dai", 215 .codec_name = "snd-soc-dummy", 216 .platform_name = "sst-mfld-platform", 217 .nonatomic = true, 218 .dynamic = 1, 219 .dpcm_playback = 1, 220 .dpcm_capture = 1, 221 .ops = &cht_aif1_ops, 222 }, 223 [MERR_DPCM_DEEP_BUFFER] = { 224 .name = "Deep-Buffer Audio Port", 225 .stream_name = "Deep-Buffer Audio", 226 .cpu_dai_name = "deepbuffer-cpu-dai", 227 .codec_dai_name = "snd-soc-dummy-dai", 228 .codec_name = "snd-soc-dummy", 229 .platform_name = "sst-mfld-platform", 230 .nonatomic = true, 231 .dynamic = 1, 232 .dpcm_playback = 1, 233 .ops = &cht_aif1_ops, 234 }, 235 [MERR_DPCM_COMPR] = { 236 .name = "Compressed Port", 237 .stream_name = "Compress", 238 .cpu_dai_name = "compress-cpu-dai", 239 .codec_dai_name = "snd-soc-dummy-dai", 240 .codec_name = "snd-soc-dummy", 241 .platform_name = "sst-mfld-platform", 242 }, 243 /* back ends */ 244 { 245 .name = "SSP2-Codec", 246 .id = 1, 247 .cpu_dai_name = "ssp2-port", 248 .platform_name = "sst-mfld-platform", 249 .no_pcm = 1, 250 .codec_dai_name = "HiFi", 251 .codec_name = "i2c-193C9890:00", 252 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 253 | SND_SOC_DAIFMT_CBS_CFS, 254 .init = cht_codec_init, 255 .be_hw_params_fixup = cht_codec_fixup, 256 .dpcm_playback = 1, 257 .dpcm_capture = 1, 258 .ops = &cht_be_ssp2_ops, 259 }, 260 }; 261 262 /* SoC card */ 263 static struct snd_soc_card snd_soc_card_cht = { 264 .name = "chtmax98090", 265 .owner = THIS_MODULE, 266 .dai_link = cht_dailink, 267 .num_links = ARRAY_SIZE(cht_dailink), 268 .aux_dev = &cht_max98090_headset_dev, 269 .num_aux_devs = 1, 270 .dapm_widgets = cht_dapm_widgets, 271 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 272 .dapm_routes = cht_audio_map, 273 .num_dapm_routes = ARRAY_SIZE(cht_audio_map), 274 .controls = cht_mc_controls, 275 .num_controls = ARRAY_SIZE(cht_mc_controls), 276 }; 277 278 static int snd_cht_mc_probe(struct platform_device *pdev) 279 { 280 int ret_val = 0; 281 struct cht_mc_private *drv; 282 283 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); 284 if (!drv) 285 return -ENOMEM; 286 287 drv->ts3a227e_present = acpi_dev_found("104C227E"); 288 if (!drv->ts3a227e_present) { 289 /* no need probe TI jack detection chip */ 290 snd_soc_card_cht.aux_dev = NULL; 291 snd_soc_card_cht.num_aux_devs = 0; 292 } 293 294 /* register the soc card */ 295 snd_soc_card_cht.dev = &pdev->dev; 296 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); 297 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); 298 if (ret_val) { 299 dev_err(&pdev->dev, 300 "snd_soc_register_card failed %d\n", ret_val); 301 return ret_val; 302 } 303 platform_set_drvdata(pdev, &snd_soc_card_cht); 304 return ret_val; 305 } 306 307 static struct platform_driver snd_cht_mc_driver = { 308 .driver = { 309 .name = "cht-bsw-max98090", 310 }, 311 .probe = snd_cht_mc_probe, 312 }; 313 314 module_platform_driver(snd_cht_mc_driver) 315 316 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 317 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>"); 318 MODULE_LICENSE("GPL v2"); 319 MODULE_ALIAS("platform:cht-bsw-max98090"); 320