/* * ASoC machine driver for Intel Broadwell platforms with RT5677 codec * * Copyright (c) 2014, The Chromium OS Authors. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/gpio/consumer.h> #include <linux/delay.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <sound/pcm_params.h> #include <sound/jack.h> #include "../common/sst-dsp.h" #include "../haswell/sst-haswell-ipc.h" #include "../../codecs/rt5677.h" struct bdw_rt5677_priv { struct gpio_desc *gpio_hp_en; struct snd_soc_codec *codec; }; static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); if (SND_SOC_DAPM_EVENT_ON(event)) msleep(70); gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en, SND_SOC_DAPM_EVENT_ON(event)); return 0; } static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = { SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp), SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Local DMICs", NULL), SND_SOC_DAPM_MIC("Remote DMICs", NULL), }; static const struct snd_soc_dapm_route bdw_rt5677_map[] = { /* Speakers */ {"Speaker", NULL, "PDM1L"}, {"Speaker", NULL, "PDM1R"}, /* Headset jack connectors */ {"Headphone", NULL, "LOUT1"}, {"Headphone", NULL, "LOUT2"}, {"IN1P", NULL, "Headset Mic"}, {"IN1N", NULL, "Headset Mic"}, /* Digital MICs * Local DMICs: the two DMICs on the mainboard * Remote DMICs: the two DMICs on the camera module */ {"DMIC L1", NULL, "Remote DMICs"}, {"DMIC R1", NULL, "Remote DMICs"}, {"DMIC L2", NULL, "Local DMICs"}, {"DMIC R2", NULL, "Local DMICs"}, /* CODEC BE connections */ {"SSP0 CODEC IN", NULL, "AIF1 Capture"}, {"AIF1 Playback", NULL, "SSP0 CODEC OUT"}, }; static const struct snd_kcontrol_new bdw_rt5677_controls[] = { SOC_DAPM_PIN_SWITCH("Speaker"), SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Local DMICs"), SOC_DAPM_PIN_SWITCH("Remote DMICs"), }; static struct snd_soc_jack headphone_jack; static struct snd_soc_jack mic_jack; static struct snd_soc_jack_pin headphone_jack_pin = { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }; static struct snd_soc_jack_pin mic_jack_pin = { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }; static struct snd_soc_jack_gpio headphone_jack_gpio = { .name = "plug-det", .report = SND_JACK_HEADPHONE, .debounce_time = 200, }; static struct snd_soc_jack_gpio mic_jack_gpio = { .name = "mic-present", .report = SND_JACK_MICROPHONE, .debounce_time = 200, .invert = 1, }; static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); /* The ADSP will covert the FE rate to 48k, stereo */ rate->min = rate->max = 48000; channels->min = channels->max = 2; /* set SSP0 to 16 bit */ snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT - SNDRV_PCM_HW_PARAM_FIRST_MASK], SNDRV_PCM_FORMAT_S16_LE); return 0; } static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; int ret; ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(rtd->dev, "can't set codec sysclk configuration\n"); return ret; } return ret; } static const struct snd_soc_ops bdw_rt5677_ops = { .hw_params = bdw_rt5677_hw_params, }; static int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd) { struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev); struct sst_hsw *broadwell = pdata->dsp; int ret; /* Set ADSP SSP port settings */ ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0, SST_HSW_DEVICE_MCLK_FREQ_24_MHZ, SST_HSW_DEVICE_CLOCK_MASTER, 9); if (ret < 0) { dev_err(rtd->dev, "error: failed to set device config\n"); return ret; } return 0; } static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd) { struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec); /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1. * The ASRC clock source is clk_i2s1_asrc. */ rt5677_sel_asrc_clk_src(codec, RT5677_DA_STEREO_FILTER | RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE, RT5677_CLK_SEL_I2S1_ASRC); /* Request rt5677 GPIO for headphone amp control */ bdw_rt5677->gpio_hp_en = devm_gpiod_get_index(codec->dev, "headphone-enable", 0, 0); if (IS_ERR(bdw_rt5677->gpio_hp_en)) { dev_err(codec->dev, "Can't find HP_AMP_SHDN_L gpio\n"); return PTR_ERR(bdw_rt5677->gpio_hp_en); } gpiod_direction_output(bdw_rt5677->gpio_hp_en, 0); /* Create and initialize headphone jack */ if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE, &headphone_jack, &headphone_jack_pin, 1)) { headphone_jack_gpio.gpiod_dev = codec->dev; if (snd_soc_jack_add_gpios(&headphone_jack, 1, &headphone_jack_gpio)) dev_err(codec->dev, "Can't add headphone jack gpio\n"); } else { dev_err(codec->dev, "Can't create headphone jack\n"); } /* Create and initialize mic jack */ if (!snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE, &mic_jack, &mic_jack_pin, 1)) { mic_jack_gpio.gpiod_dev = codec->dev; if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio)) dev_err(codec->dev, "Can't add mic jack gpio\n"); } else { dev_err(codec->dev, "Can't create mic jack\n"); } bdw_rt5677->codec = codec; snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); return 0; } /* broadwell digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link bdw_rt5677_dais[] = { /* Front End DAI links */ { .name = "System PCM", .stream_name = "System Playback/Capture", .cpu_dai_name = "System Pin", .platform_name = "haswell-pcm-audio", .dynamic = 1, .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .init = bdw_rt5677_rtd_init, .trigger = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST }, .dpcm_capture = 1, .dpcm_playback = 1, }, /* Back End DAI links */ { /* SSP0 - Codec */ .name = "Codec", .id = 0, .cpu_dai_name = "snd-soc-dummy-dai", .platform_name = "snd-soc-dummy", .no_pcm = 1, .codec_name = "i2c-RT5677CE:00", .codec_dai_name = "rt5677-aif1", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .ignore_suspend = 1, .ignore_pmdown_time = 1, .be_hw_params_fixup = broadwell_ssp0_fixup, .ops = &bdw_rt5677_ops, .dpcm_playback = 1, .dpcm_capture = 1, .init = bdw_rt5677_init, }, }; static int bdw_rt5677_suspend_pre(struct snd_soc_card *card) { struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); struct snd_soc_dapm_context *dapm; if (bdw_rt5677->codec) { dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec); snd_soc_dapm_disable_pin(dapm, "MICBIAS1"); } return 0; } static int bdw_rt5677_resume_post(struct snd_soc_card *card) { struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); struct snd_soc_dapm_context *dapm; if (bdw_rt5677->codec) { dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec); snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); } return 0; } /* ASoC machine driver for Broadwell DSP + RT5677 */ static struct snd_soc_card bdw_rt5677_card = { .name = "bdw-rt5677", .owner = THIS_MODULE, .dai_link = bdw_rt5677_dais, .num_links = ARRAY_SIZE(bdw_rt5677_dais), .dapm_widgets = bdw_rt5677_widgets, .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets), .dapm_routes = bdw_rt5677_map, .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map), .controls = bdw_rt5677_controls, .num_controls = ARRAY_SIZE(bdw_rt5677_controls), .fully_routed = true, .suspend_pre = bdw_rt5677_suspend_pre, .resume_post = bdw_rt5677_resume_post, }; static int bdw_rt5677_probe(struct platform_device *pdev) { struct bdw_rt5677_priv *bdw_rt5677; bdw_rt5677_card.dev = &pdev->dev; /* Allocate driver private struct */ bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv), GFP_KERNEL); if (!bdw_rt5677) { dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n"); return -ENOMEM; } snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677); return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card); } static struct platform_driver bdw_rt5677_audio = { .probe = bdw_rt5677_probe, .driver = { .name = "bdw-rt5677", }, }; module_platform_driver(bdw_rt5677_audio) /* Module information */ MODULE_AUTHOR("Ben Zhang"); MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bdw-rt5677");