diff options
Diffstat (limited to '')
-rw-r--r-- | sound/soc/intel/boards/bdw-rt5677.c | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/bdw-rt5677.c b/sound/soc/intel/boards/bdw-rt5677.c new file mode 100644 index 0000000000..f3e08d258a --- /dev/null +++ b/sound/soc/intel/boards/bdw-rt5677.c @@ -0,0 +1,465 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * ASoC machine driver for Intel Broadwell platforms with RT5677 codec + * + * Copyright (c) 2014, The Chromium OS Authors. All rights reserved. + */ + +#include <linux/acpi.h> +#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 <sound/soc-acpi.h> + +#include "../../codecs/rt5677.h" + +struct bdw_rt5677_priv { + struct gpio_desc *gpio_hp_en; + struct snd_soc_component *component; +}; + +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"}, + {"DSP Capture", NULL, "DSP Buffer"}, + + /* DSP Clock Connections */ + { "DSP Buffer", NULL, "SSP0 CODEC IN" }, + { "SSP0 CODEC IN", NULL, "DSPTX" }, +}; + +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, +}; + +/* GPIO indexes defined by ACPI */ +enum { + RT5677_GPIO_PLUG_DET = 0, + RT5677_GPIO_MIC_PRESENT_L = 1, + RT5677_GPIO_HOTWORD_DET_L = 2, + RT5677_GPIO_DSP_INT = 3, + RT5677_GPIO_HP_AMP_SHDN_L = 4, +}; + +static const struct acpi_gpio_params plug_det_gpio = { RT5677_GPIO_PLUG_DET, 0, false }; +static const struct acpi_gpio_params mic_present_gpio = { RT5677_GPIO_MIC_PRESENT_L, 0, false }; +static const struct acpi_gpio_params headphone_enable_gpio = { RT5677_GPIO_HP_AMP_SHDN_L, 0, false }; + +static const struct acpi_gpio_mapping bdw_rt5677_gpios[] = { + { "plug-det-gpios", &plug_det_gpio, 1 }, + { "mic-present-gpios", &mic_present_gpio, 1 }, + { "headphone-enable-gpios", &headphone_enable_gpio, 1 }, + { NULL }, +}; + +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 *chan = hw_param_interval(params, + SNDRV_PCM_HW_PARAM_CHANNELS); + + /* The ADSP will convert the FE rate to 48k, stereo */ + rate->min = rate->max = 48000; + chan->min = chan->max = 2; + + /* set SSP0 to 16 bit */ + params_set_format(params, 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 = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + 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 int bdw_rt5677_dsp_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); + int ret; + + ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1, 24576000, + SND_SOC_CLOCK_IN); + if (ret < 0) { + dev_err(rtd->dev, "can't set codec sysclk configuration\n"); + return ret; + } + ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK, + 24000000, 24576000); + if (ret < 0) { + dev_err(rtd->dev, "can't set codec pll configuration\n"); + return ret; + } + + return 0; +} + +static const struct snd_soc_ops bdw_rt5677_ops = { + .hw_params = bdw_rt5677_hw_params, +}; + +static const struct snd_soc_ops bdw_rt5677_dsp_ops = { + .hw_params = bdw_rt5677_dsp_hw_params, +}; + +static const unsigned int channels[] = { + 2, +}; + +static const struct snd_pcm_hw_constraint_list constraints_channels = { + .count = ARRAY_SIZE(channels), + .list = channels, + .mask = 0, +}; + +static int bdw_rt5677_fe_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + /* Board supports stereo configuration only */ + runtime->hw.channels_max = 2; + return snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); +} + +static const struct snd_soc_ops bdw_rt5677_fe_ops = { + .startup = bdw_rt5677_fe_startup, +}; + +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_component *component = asoc_rtd_to_codec(rtd, 0)->component; + struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); + int ret; + + ret = devm_acpi_dev_add_driver_gpios(component->dev, bdw_rt5677_gpios); + if (ret) + dev_warn(component->dev, "Failed to add driver gpios\n"); + + /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1. + * The ASRC clock source is clk_i2s1_asrc. + */ + rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER | + RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE, + RT5677_CLK_SEL_I2S1_ASRC); + /* Enable codec ASRC function for Mono ADC L. + * The ASRC clock source is clk_sys2_asrc. + */ + rt5677_sel_asrc_clk_src(component, RT5677_AD_MONO_L_FILTER, + RT5677_CLK_SEL_SYS2); + + /* Request rt5677 GPIO for headphone amp control */ + bdw_rt5677->gpio_hp_en = gpiod_get(component->dev, "headphone-enable", + GPIOD_OUT_LOW); + if (IS_ERR(bdw_rt5677->gpio_hp_en)) { + dev_err(component->dev, "Can't find HP_AMP_SHDN_L gpio\n"); + return PTR_ERR(bdw_rt5677->gpio_hp_en); + } + + /* Create and initialize headphone jack */ + if (!snd_soc_card_jack_new_pins(rtd->card, "Headphone Jack", + SND_JACK_HEADPHONE, &headphone_jack, + &headphone_jack_pin, 1)) { + headphone_jack_gpio.gpiod_dev = component->dev; + if (snd_soc_jack_add_gpios(&headphone_jack, 1, + &headphone_jack_gpio)) + dev_err(component->dev, "Can't add headphone jack gpio\n"); + } else { + dev_err(component->dev, "Can't create headphone jack\n"); + } + + /* Create and initialize mic jack */ + if (!snd_soc_card_jack_new_pins(rtd->card, "Mic Jack", + SND_JACK_MICROPHONE, &mic_jack, + &mic_jack_pin, 1)) { + mic_jack_gpio.gpiod_dev = component->dev; + if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio)) + dev_err(component->dev, "Can't add mic jack gpio\n"); + } else { + dev_err(component->dev, "Can't create mic jack\n"); + } + bdw_rt5677->component = component; + + snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); + return 0; +} + +static void bdw_rt5677_exit(struct snd_soc_pcm_runtime *rtd) +{ + struct bdw_rt5677_priv *bdw_rt5677 = + snd_soc_card_get_drvdata(rtd->card); + + /* + * The .exit() can be reached without going through the .init() + * so explicitly test if the gpiod is valid + */ + if (!IS_ERR_OR_NULL(bdw_rt5677->gpio_hp_en)) + gpiod_put(bdw_rt5677->gpio_hp_en); +} + +/* broadwell digital audio interface glue - connects codec <--> CPU */ +SND_SOC_DAILINK_DEF(dummy, + DAILINK_COMP_ARRAY(COMP_DUMMY())); + +SND_SOC_DAILINK_DEF(fe, + DAILINK_COMP_ARRAY(COMP_CPU("System Pin"))); + +SND_SOC_DAILINK_DEF(platform, + DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio"))); + +SND_SOC_DAILINK_DEF(be, + DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-aif1"))); + +SND_SOC_DAILINK_DEF(ssp0_port, + DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port"))); + +/* Wake on voice interface */ +SND_SOC_DAILINK_DEFS(dsp, + DAILINK_COMP_ARRAY(COMP_CPU("spi-RT5677AA:00")), + DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-dspbuffer")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("spi-RT5677AA:00"))); + +static struct snd_soc_dai_link bdw_rt5677_dais[] = { + /* Front End DAI links */ + { + .name = "System PCM", + .stream_name = "System Playback/Capture", + .nonatomic = 1, + .dynamic = 1, + .trigger = { + SND_SOC_DPCM_TRIGGER_POST, + SND_SOC_DPCM_TRIGGER_POST + }, + .dpcm_capture = 1, + .dpcm_playback = 1, + .ops = &bdw_rt5677_fe_ops, + SND_SOC_DAILINK_REG(fe, dummy, platform), + }, + + /* Non-DPCM links */ + { + .name = "Codec DSP", + .stream_name = "Wake on Voice", + .capture_only = 1, + .ops = &bdw_rt5677_dsp_ops, + SND_SOC_DAILINK_REG(dsp), + }, + + /* Back End DAI links */ + { + /* SSP0 - Codec */ + .name = "Codec", + .id = 0, + .nonatomic = 1, + .no_pcm = 1, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBC_CFC, + .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, + .exit = bdw_rt5677_exit, + SND_SOC_DAILINK_REG(ssp0_port, be, platform), + }, +}; + +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->component) { + dapm = snd_soc_component_get_dapm(bdw_rt5677->component); + 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->component) { + dapm = snd_soc_component_get_dapm(bdw_rt5677->component); + snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); + } + return 0; +} + +/* use space before codec name to simplify card ID, and simplify driver name */ +#define SOF_CARD_NAME "bdw rt5677" /* card name will be 'sof-bdw rt5677' */ +#define SOF_DRIVER_NAME "SOF" + +#define CARD_NAME "bdw-rt5677" +#define DRIVER_NAME NULL /* card name will be used for driver name */ + +/* ASoC machine driver for Broadwell DSP + RT5677 */ +static struct snd_soc_card bdw_rt5677_card = { + .name = CARD_NAME, + .driver_name = DRIVER_NAME, + .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; + struct snd_soc_acpi_mach *mach; + int ret; + + 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) + return -ENOMEM; + + /* override platform name, if required */ + mach = pdev->dev.platform_data; + ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5677_card, + mach->mach_params.platform); + if (ret) + return ret; + + /* set card and driver name */ + if (snd_soc_acpi_sof_parent(&pdev->dev)) { + bdw_rt5677_card.name = SOF_CARD_NAME; + bdw_rt5677_card.driver_name = SOF_DRIVER_NAME; + } else { + bdw_rt5677_card.name = CARD_NAME; + bdw_rt5677_card.driver_name = DRIVER_NAME; + } + + 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", + .pm = &snd_soc_pm_ops + }, +}; + +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"); |