| /* |
| * 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"); |