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_codec_init(struct snd_soc_pcm_runtime *runtime) 105 { 106 int ret; 107 int jack_type; 108 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); 109 struct snd_soc_jack *jack = &ctx->jack; 110 111 /** 112 * TI supports 4 butons headset detection 113 * KEY_MEDIA 114 * KEY_VOICECOMMAND 115 * KEY_VOLUMEUP 116 * KEY_VOLUMEDOWN 117 */ 118 if (ctx->ts3a227e_present) 119 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 120 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 121 SND_JACK_BTN_2 | SND_JACK_BTN_3; 122 else 123 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; 124 125 ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", 126 jack_type, jack, NULL, 0); 127 128 if (ret) { 129 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); 130 return ret; 131 } 132 133 return ret; 134 } 135 136 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, 137 struct snd_pcm_hw_params *params) 138 { 139 struct snd_interval *rate = hw_param_interval(params, 140 SNDRV_PCM_HW_PARAM_RATE); 141 struct snd_interval *channels = hw_param_interval(params, 142 SNDRV_PCM_HW_PARAM_CHANNELS); 143 int ret = 0; 144 unsigned int fmt = 0; 145 146 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); 147 if (ret < 0) { 148 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); 149 return ret; 150 } 151 152 fmt = SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF 153 | SND_SOC_DAIFMT_CBS_CFS; 154 155 ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); 156 if (ret < 0) { 157 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); 158 return ret; 159 } 160 161 /* The DSP will covert the FE rate to 48k, stereo, 24bits */ 162 rate->min = rate->max = 48000; 163 channels->min = channels->max = 2; 164 165 /* set SSP2 to 24-bit */ 166 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); 167 return 0; 168 } 169 170 static unsigned int rates_48000[] = { 171 48000, 172 }; 173 174 static struct snd_pcm_hw_constraint_list constraints_48000 = { 175 .count = ARRAY_SIZE(rates_48000), 176 .list = rates_48000, 177 }; 178 179 static int cht_aif1_startup(struct snd_pcm_substream *substream) 180 { 181 return snd_pcm_hw_constraint_list(substream->runtime, 0, 182 SNDRV_PCM_HW_PARAM_RATE, 183 &constraints_48000); 184 } 185 186 static int cht_max98090_headset_init(struct snd_soc_component *component) 187 { 188 struct snd_soc_card *card = component->card; 189 struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); 190 191 return ts3a227e_enable_jack_detect(component, &ctx->jack); 192 } 193 194 static struct snd_soc_ops cht_aif1_ops = { 195 .startup = cht_aif1_startup, 196 }; 197 198 static struct snd_soc_ops cht_be_ssp2_ops = { 199 .hw_params = cht_aif1_hw_params, 200 }; 201 202 static struct snd_soc_aux_dev cht_max98090_headset_dev = { 203 .name = "Headset Chip", 204 .init = cht_max98090_headset_init, 205 .codec_name = "i2c-104C227E:00", 206 }; 207 208 static struct snd_soc_dai_link cht_dailink[] = { 209 [MERR_DPCM_AUDIO] = { 210 .name = "Audio Port", 211 .stream_name = "Audio", 212 .cpu_dai_name = "media-cpu-dai", 213 .codec_dai_name = "snd-soc-dummy-dai", 214 .codec_name = "snd-soc-dummy", 215 .platform_name = "sst-mfld-platform", 216 .nonatomic = true, 217 .dynamic = 1, 218 .dpcm_playback = 1, 219 .dpcm_capture = 1, 220 .ops = &cht_aif1_ops, 221 }, 222 [MERR_DPCM_COMPR] = { 223 .name = "Compressed Port", 224 .stream_name = "Compress", 225 .cpu_dai_name = "compress-cpu-dai", 226 .codec_dai_name = "snd-soc-dummy-dai", 227 .codec_name = "snd-soc-dummy", 228 .platform_name = "sst-mfld-platform", 229 }, 230 /* back ends */ 231 { 232 .name = "SSP2-Codec", 233 .be_id = 1, 234 .cpu_dai_name = "ssp2-port", 235 .platform_name = "sst-mfld-platform", 236 .no_pcm = 1, 237 .codec_dai_name = "HiFi", 238 .codec_name = "i2c-193C9890:00", 239 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF 240 | SND_SOC_DAIFMT_CBS_CFS, 241 .init = cht_codec_init, 242 .be_hw_params_fixup = cht_codec_fixup, 243 .dpcm_playback = 1, 244 .dpcm_capture = 1, 245 .ops = &cht_be_ssp2_ops, 246 }, 247 }; 248 249 /* SoC card */ 250 static struct snd_soc_card snd_soc_card_cht = { 251 .name = "chtmax98090", 252 .dai_link = cht_dailink, 253 .num_links = ARRAY_SIZE(cht_dailink), 254 .aux_dev = &cht_max98090_headset_dev, 255 .num_aux_devs = 1, 256 .dapm_widgets = cht_dapm_widgets, 257 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), 258 .dapm_routes = cht_audio_map, 259 .num_dapm_routes = ARRAY_SIZE(cht_audio_map), 260 .controls = cht_mc_controls, 261 .num_controls = ARRAY_SIZE(cht_mc_controls), 262 }; 263 264 static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level, 265 void *context, void **ret) 266 { 267 *(bool *)context = true; 268 return AE_OK; 269 } 270 271 static int snd_cht_mc_probe(struct platform_device *pdev) 272 { 273 int ret_val = 0; 274 bool found = false; 275 struct cht_mc_private *drv; 276 277 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); 278 if (!drv) 279 return -ENOMEM; 280 281 if (ACPI_SUCCESS(acpi_get_devices( 282 "104C227E", 283 snd_acpi_codec_match, 284 &found, NULL)) && found) { 285 drv->ts3a227e_present = true; 286 } else { 287 /* no need probe TI jack detection chip */ 288 snd_soc_card_cht.aux_dev = NULL; 289 snd_soc_card_cht.num_aux_devs = 0; 290 drv->ts3a227e_present = false; 291 } 292 293 /* register the soc card */ 294 snd_soc_card_cht.dev = &pdev->dev; 295 snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); 296 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); 297 if (ret_val) { 298 dev_err(&pdev->dev, 299 "snd_soc_register_card failed %d\n", ret_val); 300 return ret_val; 301 } 302 platform_set_drvdata(pdev, &snd_soc_card_cht); 303 return ret_val; 304 } 305 306 static struct platform_driver snd_cht_mc_driver = { 307 .driver = { 308 .name = "cht-bsw-max98090", 309 }, 310 .probe = snd_cht_mc_probe, 311 }; 312 313 module_platform_driver(snd_cht_mc_driver) 314 315 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); 316 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>"); 317 MODULE_LICENSE("GPL v2"); 318 MODULE_ALIAS("platform:cht-bsw-max98090"); 319