| 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"); |