1 /* 2 * ASoC machine driver for Intel Broadwell platforms with RT5677 codec 3 * 4 * Copyright (c) 2014, The Chromium OS Authors. All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #include <linux/module.h> 20 #include <linux/platform_device.h> 21 #include <linux/gpio/consumer.h> 22 #include <linux/delay.h> 23 #include <sound/core.h> 24 #include <sound/pcm.h> 25 #include <sound/soc.h> 26 #include <sound/pcm_params.h> 27 #include <sound/jack.h> 28 29 #include "../common/sst-dsp.h" 30 #include "../haswell/sst-haswell-ipc.h" 31 32 #include "../../codecs/rt5677.h" 33 34 struct bdw_rt5677_priv { 35 struct gpio_desc *gpio_hp_en; 36 struct snd_soc_codec *codec; 37 }; 38 39 static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w, 40 struct snd_kcontrol *k, int event) 41 { 42 struct snd_soc_dapm_context *dapm = w->dapm; 43 struct snd_soc_card *card = dapm->card; 44 struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); 45 46 if (SND_SOC_DAPM_EVENT_ON(event)) 47 msleep(70); 48 49 gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en, 50 SND_SOC_DAPM_EVENT_ON(event)); 51 52 return 0; 53 } 54 55 static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = { 56 SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp), 57 SND_SOC_DAPM_SPK("Speaker", NULL), 58 SND_SOC_DAPM_MIC("Headset Mic", NULL), 59 SND_SOC_DAPM_MIC("Local DMICs", NULL), 60 SND_SOC_DAPM_MIC("Remote DMICs", NULL), 61 }; 62 63 static const struct snd_soc_dapm_route bdw_rt5677_map[] = { 64 /* Speakers */ 65 {"Speaker", NULL, "PDM1L"}, 66 {"Speaker", NULL, "PDM1R"}, 67 68 /* Headset jack connectors */ 69 {"Headphone", NULL, "LOUT1"}, 70 {"Headphone", NULL, "LOUT2"}, 71 {"IN1P", NULL, "Headset Mic"}, 72 {"IN1N", NULL, "Headset Mic"}, 73 74 /* Digital MICs 75 * Local DMICs: the two DMICs on the mainboard 76 * Remote DMICs: the two DMICs on the camera module 77 */ 78 {"DMIC L1", NULL, "Remote DMICs"}, 79 {"DMIC R1", NULL, "Remote DMICs"}, 80 {"DMIC L2", NULL, "Local DMICs"}, 81 {"DMIC R2", NULL, "Local DMICs"}, 82 83 /* CODEC BE connections */ 84 {"SSP0 CODEC IN", NULL, "AIF1 Capture"}, 85 {"AIF1 Playback", NULL, "SSP0 CODEC OUT"}, 86 }; 87 88 static const struct snd_kcontrol_new bdw_rt5677_controls[] = { 89 SOC_DAPM_PIN_SWITCH("Speaker"), 90 SOC_DAPM_PIN_SWITCH("Headphone"), 91 SOC_DAPM_PIN_SWITCH("Headset Mic"), 92 SOC_DAPM_PIN_SWITCH("Local DMICs"), 93 SOC_DAPM_PIN_SWITCH("Remote DMICs"), 94 }; 95 96 97 static struct snd_soc_jack headphone_jack; 98 static struct snd_soc_jack mic_jack; 99 100 static struct snd_soc_jack_pin headphone_jack_pin = { 101 .pin = "Headphone", 102 .mask = SND_JACK_HEADPHONE, 103 }; 104 105 static struct snd_soc_jack_pin mic_jack_pin = { 106 .pin = "Headset Mic", 107 .mask = SND_JACK_MICROPHONE, 108 }; 109 110 static struct snd_soc_jack_gpio headphone_jack_gpio = { 111 .name = "plug-det", 112 .report = SND_JACK_HEADPHONE, 113 .debounce_time = 200, 114 }; 115 116 static struct snd_soc_jack_gpio mic_jack_gpio = { 117 .name = "mic-present", 118 .report = SND_JACK_MICROPHONE, 119 .debounce_time = 200, 120 .invert = 1, 121 }; 122 123 static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd, 124 struct snd_pcm_hw_params *params) 125 { 126 struct snd_interval *rate = hw_param_interval(params, 127 SNDRV_PCM_HW_PARAM_RATE); 128 struct snd_interval *channels = hw_param_interval(params, 129 SNDRV_PCM_HW_PARAM_CHANNELS); 130 131 /* The ADSP will covert the FE rate to 48k, stereo */ 132 rate->min = rate->max = 48000; 133 channels->min = channels->max = 2; 134 135 /* set SSP0 to 16 bit */ 136 snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT - 137 SNDRV_PCM_HW_PARAM_FIRST_MASK], 138 SNDRV_PCM_FORMAT_S16_LE); 139 return 0; 140 } 141 142 static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream, 143 struct snd_pcm_hw_params *params) 144 { 145 struct snd_soc_pcm_runtime *rtd = substream->private_data; 146 struct snd_soc_dai *codec_dai = rtd->codec_dai; 147 int ret; 148 149 ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000, 150 SND_SOC_CLOCK_IN); 151 if (ret < 0) { 152 dev_err(rtd->dev, "can't set codec sysclk configuration\n"); 153 return ret; 154 } 155 156 return ret; 157 } 158 159 static const struct snd_soc_ops bdw_rt5677_ops = { 160 .hw_params = bdw_rt5677_hw_params, 161 }; 162 163 static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd) 164 { 165 struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev); 166 struct sst_hsw *broadwell = pdata->dsp; 167 int ret; 168 169 /* Set ADSP SSP port settings */ 170 ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0, 171 SST_HSW_DEVICE_MCLK_FREQ_24_MHZ, 172 SST_HSW_DEVICE_CLOCK_MASTER, 9); 173 if (ret < 0) { 174 dev_err(rtd->dev, "error: failed to set device config\n"); 175 return ret; 176 } 177 178 return 0; 179 } 180 181 static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd) 182 { 183 struct bdw_rt5677_priv *bdw_rt5677 = 184 snd_soc_card_get_drvdata(rtd->card); 185 struct snd_soc_codec *codec = rtd->codec; 186 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); 187 188 /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1. 189 * The ASRC clock source is clk_i2s1_asrc. 190 */ 191 rt5677_sel_asrc_clk_src(codec, RT5677_DA_STEREO_FILTER | 192 RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE, 193 RT5677_CLK_SEL_I2S1_ASRC); 194 195 /* Request rt5677 GPIO for headphone amp control */ 196 bdw_rt5677->gpio_hp_en = devm_gpiod_get_index(codec->dev, 197 "headphone-enable", 0, 0); 198 if (IS_ERR(bdw_rt5677->gpio_hp_en)) { 199 dev_err(codec->dev, "Can't find HP_AMP_SHDN_L gpio\n"); 200 return PTR_ERR(bdw_rt5677->gpio_hp_en); 201 } 202 gpiod_direction_output(bdw_rt5677->gpio_hp_en, 0); 203 204 /* Create and initialize headphone jack */ 205 if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack", 206 SND_JACK_HEADPHONE, &headphone_jack, 207 &headphone_jack_pin, 1)) { 208 headphone_jack_gpio.gpiod_dev = codec->dev; 209 if (snd_soc_jack_add_gpios(&headphone_jack, 1, 210 &headphone_jack_gpio)) 211 dev_err(codec->dev, "Can't add headphone jack gpio\n"); 212 } else { 213 dev_err(codec->dev, "Can't create headphone jack\n"); 214 } 215 216 /* Create and initialize mic jack */ 217 if (!snd_soc_card_jack_new(rtd->card, "Mic Jack", 218 SND_JACK_MICROPHONE, &mic_jack, 219 &mic_jack_pin, 1)) { 220 mic_jack_gpio.gpiod_dev = codec->dev; 221 if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio)) 222 dev_err(codec->dev, "Can't add mic jack gpio\n"); 223 } else { 224 dev_err(codec->dev, "Can't create mic jack\n"); 225 } 226 bdw_rt5677->codec = codec; 227 228 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); 229 return 0; 230 } 231 232 /* broadwell digital audio interface glue - connects codec <--> CPU */ 233 static struct snd_soc_dai_link bdw_rt5677_dais[] = { 234 /* Front End DAI links */ 235 { 236 .name = "System PCM", 237 .stream_name = "System Playback/Capture", 238 .cpu_dai_name = "System Pin", 239 .platform_name = "haswell-pcm-audio", 240 .dynamic = 1, 241 .codec_name = "snd-soc-dummy", 242 .codec_dai_name = "snd-soc-dummy-dai", 243 .init = bdw_rt5677_rtd_init, 244 .trigger = { 245 SND_SOC_DPCM_TRIGGER_POST, 246 SND_SOC_DPCM_TRIGGER_POST 247 }, 248 .dpcm_capture = 1, 249 .dpcm_playback = 1, 250 }, 251 252 /* Back End DAI links */ 253 { 254 /* SSP0 - Codec */ 255 .name = "Codec", 256 .id = 0, 257 .cpu_dai_name = "snd-soc-dummy-dai", 258 .platform_name = "snd-soc-dummy", 259 .no_pcm = 1, 260 .codec_name = "i2c-RT5677CE:00", 261 .codec_dai_name = "rt5677-aif1", 262 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 263 SND_SOC_DAIFMT_CBS_CFS, 264 .ignore_suspend = 1, 265 .ignore_pmdown_time = 1, 266 .be_hw_params_fixup = broadwell_ssp0_fixup, 267 .ops = &bdw_rt5677_ops, 268 .dpcm_playback = 1, 269 .dpcm_capture = 1, 270 .init = bdw_rt5677_init, 271 }, 272 }; 273 274 static int bdw_rt5677_suspend_pre(struct snd_soc_card *card) 275 { 276 struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); 277 struct snd_soc_dapm_context *dapm; 278 279 if (bdw_rt5677->codec) { 280 dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec); 281 snd_soc_dapm_disable_pin(dapm, "MICBIAS1"); 282 } 283 return 0; 284 } 285 286 static int bdw_rt5677_resume_post(struct snd_soc_card *card) 287 { 288 struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); 289 struct snd_soc_dapm_context *dapm; 290 291 if (bdw_rt5677->codec) { 292 dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec); 293 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); 294 } 295 return 0; 296 } 297 298 /* ASoC machine driver for Broadwell DSP + RT5677 */ 299 static struct snd_soc_card bdw_rt5677_card = { 300 .name = "bdw-rt5677", 301 .owner = THIS_MODULE, 302 .dai_link = bdw_rt5677_dais, 303 .num_links = ARRAY_SIZE(bdw_rt5677_dais), 304 .dapm_widgets = bdw_rt5677_widgets, 305 .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets), 306 .dapm_routes = bdw_rt5677_map, 307 .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map), 308 .controls = bdw_rt5677_controls, 309 .num_controls = ARRAY_SIZE(bdw_rt5677_controls), 310 .fully_routed = true, 311 .suspend_pre = bdw_rt5677_suspend_pre, 312 .resume_post = bdw_rt5677_resume_post, 313 }; 314 315 static int bdw_rt5677_probe(struct platform_device *pdev) 316 { 317 struct bdw_rt5677_priv *bdw_rt5677; 318 319 bdw_rt5677_card.dev = &pdev->dev; 320 321 /* Allocate driver private struct */ 322 bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv), 323 GFP_KERNEL); 324 if (!bdw_rt5677) { 325 dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n"); 326 return -ENOMEM; 327 } 328 329 snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677); 330 331 return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card); 332 } 333 334 static struct platform_driver bdw_rt5677_audio = { 335 .probe = bdw_rt5677_probe, 336 .driver = { 337 .name = "bdw-rt5677", 338 }, 339 }; 340 341 module_platform_driver(bdw_rt5677_audio) 342 343 /* Module information */ 344 MODULE_AUTHOR("Ben Zhang"); 345 MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver"); 346 MODULE_LICENSE("GPL v2"); 347 MODULE_ALIAS("platform:bdw-rt5677"); 348