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466 lines
13 KiB
466 lines
13 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* ASoC machine driver for Intel Broadwell platforms with RT5677 codec |
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* |
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* Copyright (c) 2014, The Chromium OS Authors. All rights reserved. |
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*/ |
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#include <linux/acpi.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/gpio/consumer.h> |
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#include <linux/delay.h> |
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#include <sound/core.h> |
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#include <sound/pcm.h> |
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#include <sound/soc.h> |
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#include <sound/pcm_params.h> |
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#include <sound/jack.h> |
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#include <sound/soc-acpi.h> |
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#include "../../codecs/rt5677.h" |
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struct bdw_rt5677_priv { |
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struct gpio_desc *gpio_hp_en; |
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struct snd_soc_component *component; |
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}; |
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static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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struct snd_soc_dapm_context *dapm = w->dapm; |
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struct snd_soc_card *card = dapm->card; |
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struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); |
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if (SND_SOC_DAPM_EVENT_ON(event)) |
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msleep(70); |
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gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en, |
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SND_SOC_DAPM_EVENT_ON(event)); |
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return 0; |
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} |
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static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp), |
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SND_SOC_DAPM_SPK("Speaker", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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SND_SOC_DAPM_MIC("Local DMICs", NULL), |
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SND_SOC_DAPM_MIC("Remote DMICs", NULL), |
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}; |
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static const struct snd_soc_dapm_route bdw_rt5677_map[] = { |
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/* Speakers */ |
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{"Speaker", NULL, "PDM1L"}, |
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{"Speaker", NULL, "PDM1R"}, |
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/* Headset jack connectors */ |
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{"Headphone", NULL, "LOUT1"}, |
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{"Headphone", NULL, "LOUT2"}, |
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{"IN1P", NULL, "Headset Mic"}, |
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{"IN1N", NULL, "Headset Mic"}, |
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/* Digital MICs |
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* Local DMICs: the two DMICs on the mainboard |
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* Remote DMICs: the two DMICs on the camera module |
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*/ |
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{"DMIC L1", NULL, "Remote DMICs"}, |
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{"DMIC R1", NULL, "Remote DMICs"}, |
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{"DMIC L2", NULL, "Local DMICs"}, |
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{"DMIC R2", NULL, "Local DMICs"}, |
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/* CODEC BE connections */ |
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{"SSP0 CODEC IN", NULL, "AIF1 Capture"}, |
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{"AIF1 Playback", NULL, "SSP0 CODEC OUT"}, |
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{"DSP Capture", NULL, "DSP Buffer"}, |
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/* DSP Clock Connections */ |
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{ "DSP Buffer", NULL, "SSP0 CODEC IN" }, |
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{ "SSP0 CODEC IN", NULL, "DSPTX" }, |
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}; |
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static const struct snd_kcontrol_new bdw_rt5677_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Speaker"), |
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SOC_DAPM_PIN_SWITCH("Headphone"), |
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SOC_DAPM_PIN_SWITCH("Headset Mic"), |
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SOC_DAPM_PIN_SWITCH("Local DMICs"), |
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SOC_DAPM_PIN_SWITCH("Remote DMICs"), |
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}; |
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static struct snd_soc_jack headphone_jack; |
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static struct snd_soc_jack mic_jack; |
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static struct snd_soc_jack_pin headphone_jack_pin = { |
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.pin = "Headphone", |
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.mask = SND_JACK_HEADPHONE, |
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}; |
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static struct snd_soc_jack_pin mic_jack_pin = { |
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.pin = "Headset Mic", |
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.mask = SND_JACK_MICROPHONE, |
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}; |
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static struct snd_soc_jack_gpio headphone_jack_gpio = { |
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.name = "plug-det", |
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.report = SND_JACK_HEADPHONE, |
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.debounce_time = 200, |
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}; |
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static struct snd_soc_jack_gpio mic_jack_gpio = { |
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.name = "mic-present", |
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.report = SND_JACK_MICROPHONE, |
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.debounce_time = 200, |
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.invert = 1, |
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}; |
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/* GPIO indexes defined by ACPI */ |
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enum { |
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RT5677_GPIO_PLUG_DET = 0, |
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RT5677_GPIO_MIC_PRESENT_L = 1, |
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RT5677_GPIO_HOTWORD_DET_L = 2, |
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RT5677_GPIO_DSP_INT = 3, |
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RT5677_GPIO_HP_AMP_SHDN_L = 4, |
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}; |
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static const struct acpi_gpio_params plug_det_gpio = { RT5677_GPIO_PLUG_DET, 0, false }; |
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static const struct acpi_gpio_params mic_present_gpio = { RT5677_GPIO_MIC_PRESENT_L, 0, false }; |
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static const struct acpi_gpio_params headphone_enable_gpio = { RT5677_GPIO_HP_AMP_SHDN_L, 0, false }; |
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static const struct acpi_gpio_mapping bdw_rt5677_gpios[] = { |
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{ "plug-det-gpios", &plug_det_gpio, 1 }, |
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{ "mic-present-gpios", &mic_present_gpio, 1 }, |
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{ "headphone-enable-gpios", &headphone_enable_gpio, 1 }, |
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{ NULL }, |
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}; |
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static int broadwell_ssp0_fixup(struct snd_soc_pcm_runtime *rtd, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_interval *rate = hw_param_interval(params, |
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SNDRV_PCM_HW_PARAM_RATE); |
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struct snd_interval *chan = hw_param_interval(params, |
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SNDRV_PCM_HW_PARAM_CHANNELS); |
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/* The ADSP will covert the FE rate to 48k, stereo */ |
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rate->min = rate->max = 48000; |
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chan->min = chan->max = 2; |
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/* set SSP0 to 16 bit */ |
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params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); |
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return 0; |
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} |
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static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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int ret; |
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ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000, |
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SND_SOC_CLOCK_IN); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set codec sysclk configuration\n"); |
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return ret; |
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} |
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return ret; |
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} |
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static int bdw_rt5677_dsp_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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int ret; |
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ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1, 24576000, |
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SND_SOC_CLOCK_IN); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set codec sysclk configuration\n"); |
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return ret; |
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} |
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ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK, |
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24000000, 24576000); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set codec pll configuration\n"); |
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return ret; |
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} |
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return 0; |
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} |
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static const struct snd_soc_ops bdw_rt5677_ops = { |
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.hw_params = bdw_rt5677_hw_params, |
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}; |
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static const struct snd_soc_ops bdw_rt5677_dsp_ops = { |
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.hw_params = bdw_rt5677_dsp_hw_params, |
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}; |
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static const unsigned int channels[] = { |
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2, |
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}; |
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static const struct snd_pcm_hw_constraint_list constraints_channels = { |
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.count = ARRAY_SIZE(channels), |
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.list = channels, |
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.mask = 0, |
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}; |
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static int bdw_rt5677_fe_startup(struct snd_pcm_substream *substream) |
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{ |
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struct snd_pcm_runtime *runtime = substream->runtime; |
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/* Board supports stereo configuration only */ |
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runtime->hw.channels_max = 2; |
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return snd_pcm_hw_constraint_list(runtime, 0, |
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SNDRV_PCM_HW_PARAM_CHANNELS, |
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&constraints_channels); |
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} |
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static const struct snd_soc_ops bdw_rt5677_fe_ops = { |
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.startup = bdw_rt5677_fe_startup, |
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}; |
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static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct bdw_rt5677_priv *bdw_rt5677 = |
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snd_soc_card_get_drvdata(rtd->card); |
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struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; |
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struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); |
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int ret; |
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ret = devm_acpi_dev_add_driver_gpios(component->dev, bdw_rt5677_gpios); |
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if (ret) |
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dev_warn(component->dev, "Failed to add driver gpios\n"); |
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/* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1. |
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* The ASRC clock source is clk_i2s1_asrc. |
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*/ |
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rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER | |
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RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE, |
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RT5677_CLK_SEL_I2S1_ASRC); |
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/* Enable codec ASRC function for Mono ADC L. |
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* The ASRC clock source is clk_sys2_asrc. |
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*/ |
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rt5677_sel_asrc_clk_src(component, RT5677_AD_MONO_L_FILTER, |
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RT5677_CLK_SEL_SYS2); |
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/* Request rt5677 GPIO for headphone amp control */ |
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bdw_rt5677->gpio_hp_en = gpiod_get(component->dev, "headphone-enable", |
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GPIOD_OUT_LOW); |
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if (IS_ERR(bdw_rt5677->gpio_hp_en)) { |
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dev_err(component->dev, "Can't find HP_AMP_SHDN_L gpio\n"); |
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return PTR_ERR(bdw_rt5677->gpio_hp_en); |
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} |
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/* Create and initialize headphone jack */ |
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if (!snd_soc_card_jack_new(rtd->card, "Headphone Jack", |
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SND_JACK_HEADPHONE, &headphone_jack, |
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&headphone_jack_pin, 1)) { |
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headphone_jack_gpio.gpiod_dev = component->dev; |
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if (snd_soc_jack_add_gpios(&headphone_jack, 1, |
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&headphone_jack_gpio)) |
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dev_err(component->dev, "Can't add headphone jack gpio\n"); |
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} else { |
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dev_err(component->dev, "Can't create headphone jack\n"); |
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} |
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/* Create and initialize mic jack */ |
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if (!snd_soc_card_jack_new(rtd->card, "Mic Jack", |
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SND_JACK_MICROPHONE, &mic_jack, |
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&mic_jack_pin, 1)) { |
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mic_jack_gpio.gpiod_dev = component->dev; |
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if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio)) |
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dev_err(component->dev, "Can't add mic jack gpio\n"); |
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} else { |
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dev_err(component->dev, "Can't create mic jack\n"); |
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} |
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bdw_rt5677->component = component; |
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snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); |
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return 0; |
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} |
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static void bdw_rt5677_exit(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct bdw_rt5677_priv *bdw_rt5677 = |
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snd_soc_card_get_drvdata(rtd->card); |
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/* |
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* The .exit() can be reached without going through the .init() |
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* so explicitly test if the gpiod is valid |
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*/ |
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if (!IS_ERR_OR_NULL(bdw_rt5677->gpio_hp_en)) |
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gpiod_put(bdw_rt5677->gpio_hp_en); |
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} |
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/* broadwell digital audio interface glue - connects codec <--> CPU */ |
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SND_SOC_DAILINK_DEF(dummy, |
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DAILINK_COMP_ARRAY(COMP_DUMMY())); |
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SND_SOC_DAILINK_DEF(fe, |
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DAILINK_COMP_ARRAY(COMP_CPU("System Pin"))); |
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SND_SOC_DAILINK_DEF(platform, |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio"))); |
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SND_SOC_DAILINK_DEF(be, |
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DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-aif1"))); |
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SND_SOC_DAILINK_DEF(ssp0_port, |
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DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port"))); |
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/* Wake on voice interface */ |
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SND_SOC_DAILINK_DEFS(dsp, |
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DAILINK_COMP_ARRAY(COMP_CPU("spi-RT5677AA:00")), |
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DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-dspbuffer")), |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("spi-RT5677AA:00"))); |
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static struct snd_soc_dai_link bdw_rt5677_dais[] = { |
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/* Front End DAI links */ |
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{ |
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.name = "System PCM", |
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.stream_name = "System Playback/Capture", |
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.nonatomic = 1, |
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.dynamic = 1, |
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.trigger = { |
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SND_SOC_DPCM_TRIGGER_POST, |
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SND_SOC_DPCM_TRIGGER_POST |
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}, |
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.dpcm_capture = 1, |
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.dpcm_playback = 1, |
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.ops = &bdw_rt5677_fe_ops, |
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SND_SOC_DAILINK_REG(fe, dummy, platform), |
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}, |
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/* Non-DPCM links */ |
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{ |
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.name = "Codec DSP", |
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.stream_name = "Wake on Voice", |
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.capture_only = 1, |
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.ops = &bdw_rt5677_dsp_ops, |
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SND_SOC_DAILINK_REG(dsp), |
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}, |
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/* Back End DAI links */ |
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{ |
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/* SSP0 - Codec */ |
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.name = "Codec", |
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.id = 0, |
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.no_pcm = 1, |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS, |
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.ignore_pmdown_time = 1, |
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.be_hw_params_fixup = broadwell_ssp0_fixup, |
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.ops = &bdw_rt5677_ops, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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.init = bdw_rt5677_init, |
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.exit = bdw_rt5677_exit, |
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SND_SOC_DAILINK_REG(ssp0_port, be, platform), |
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}, |
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}; |
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static int bdw_rt5677_suspend_pre(struct snd_soc_card *card) |
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{ |
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struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); |
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struct snd_soc_dapm_context *dapm; |
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if (bdw_rt5677->component) { |
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dapm = snd_soc_component_get_dapm(bdw_rt5677->component); |
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snd_soc_dapm_disable_pin(dapm, "MICBIAS1"); |
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} |
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return 0; |
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} |
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static int bdw_rt5677_resume_post(struct snd_soc_card *card) |
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{ |
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struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card); |
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struct snd_soc_dapm_context *dapm; |
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if (bdw_rt5677->component) { |
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dapm = snd_soc_component_get_dapm(bdw_rt5677->component); |
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snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1"); |
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} |
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return 0; |
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} |
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/* use space before codec name to simplify card ID, and simplify driver name */ |
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#define SOF_CARD_NAME "bdw rt5677" /* card name will be 'sof-bdw rt5677' */ |
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#define SOF_DRIVER_NAME "SOF" |
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#define CARD_NAME "bdw-rt5677" |
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#define DRIVER_NAME NULL /* card name will be used for driver name */ |
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/* ASoC machine driver for Broadwell DSP + RT5677 */ |
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static struct snd_soc_card bdw_rt5677_card = { |
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.name = CARD_NAME, |
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.driver_name = DRIVER_NAME, |
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.owner = THIS_MODULE, |
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.dai_link = bdw_rt5677_dais, |
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.num_links = ARRAY_SIZE(bdw_rt5677_dais), |
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.dapm_widgets = bdw_rt5677_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets), |
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.dapm_routes = bdw_rt5677_map, |
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.num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map), |
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.controls = bdw_rt5677_controls, |
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.num_controls = ARRAY_SIZE(bdw_rt5677_controls), |
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.fully_routed = true, |
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.suspend_pre = bdw_rt5677_suspend_pre, |
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.resume_post = bdw_rt5677_resume_post, |
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}; |
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static int bdw_rt5677_probe(struct platform_device *pdev) |
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{ |
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struct bdw_rt5677_priv *bdw_rt5677; |
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struct snd_soc_acpi_mach *mach; |
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int ret; |
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bdw_rt5677_card.dev = &pdev->dev; |
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/* Allocate driver private struct */ |
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bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv), |
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GFP_KERNEL); |
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if (!bdw_rt5677) { |
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dev_err(&pdev->dev, "Can't allocate bdw_rt5677\n"); |
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return -ENOMEM; |
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} |
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/* override plaform name, if required */ |
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mach = pdev->dev.platform_data; |
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ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5677_card, |
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mach->mach_params.platform); |
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if (ret) |
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return ret; |
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/* set card and driver name */ |
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if (snd_soc_acpi_sof_parent(&pdev->dev)) { |
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bdw_rt5677_card.name = SOF_CARD_NAME; |
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bdw_rt5677_card.driver_name = SOF_DRIVER_NAME; |
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} else { |
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bdw_rt5677_card.name = CARD_NAME; |
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bdw_rt5677_card.driver_name = DRIVER_NAME; |
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} |
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snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677); |
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return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card); |
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} |
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static struct platform_driver bdw_rt5677_audio = { |
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.probe = bdw_rt5677_probe, |
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.driver = { |
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.name = "bdw-rt5677", |
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.pm = &snd_soc_pm_ops |
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}, |
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}; |
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module_platform_driver(bdw_rt5677_audio) |
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|
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/* Module information */ |
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MODULE_AUTHOR("Ben Zhang"); |
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MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:bdw-rt5677");
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