466 lines
13 KiB
C
466 lines
13 KiB
C
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// 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 convert 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_pins(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_pins(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",
|
||
|
|
.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");
|