373 lines
10 KiB
C
373 lines
10 KiB
C
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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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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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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 "../common/sst-dsp.h"
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#include "../haswell/sst-haswell-ipc.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_codec *codec;
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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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};
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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 *channels = 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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channels->min = channels->max = 2;
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/* set SSP0 to 16 bit */
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snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT -
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SNDRV_PCM_HW_PARAM_FIRST_MASK],
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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 = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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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 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 int bdw_rt5677_rtd_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct sst_pdata *pdata = dev_get_platdata(rtd->platform->dev);
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struct sst_hsw *broadwell = pdata->dsp;
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int ret;
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/* Set ADSP SSP port settings */
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ret = sst_hsw_device_set_config(broadwell, SST_HSW_DEVICE_SSP_0,
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SST_HSW_DEVICE_MCLK_FREQ_24_MHZ,
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SST_HSW_DEVICE_CLOCK_MASTER, 9);
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if (ret < 0) {
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dev_err(rtd->dev, "error: failed to set device config\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 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_codec *codec = rtd->codec;
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struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
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int ret;
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ret = devm_acpi_dev_add_driver_gpios(codec->dev, bdw_rt5677_gpios);
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if (ret)
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dev_warn(codec->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(codec, 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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/* Request rt5677 GPIO for headphone amp control */
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bdw_rt5677->gpio_hp_en = devm_gpiod_get(codec->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(codec->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 = codec->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(codec->dev, "Can't add headphone jack gpio\n");
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} else {
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dev_err(codec->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 = codec->dev;
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if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio))
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dev_err(codec->dev, "Can't add mic jack gpio\n");
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} else {
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dev_err(codec->dev, "Can't create mic jack\n");
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}
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bdw_rt5677->codec = codec;
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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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/* broadwell digital audio interface glue - connects codec <--> CPU */
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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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.cpu_dai_name = "System Pin",
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.platform_name = "haswell-pcm-audio",
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.dynamic = 1,
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.init = bdw_rt5677_rtd_init,
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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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},
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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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.cpu_dai_name = "snd-soc-dummy-dai",
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.platform_name = "snd-soc-dummy",
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.no_pcm = 1,
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.codec_name = "i2c-RT5677CE:00",
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.codec_dai_name = "rt5677-aif1",
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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_suspend = 1,
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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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},
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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->codec) {
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dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
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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->codec) {
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dapm = snd_soc_codec_get_dapm(bdw_rt5677->codec);
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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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/* ASoC machine driver for Broadwell DSP + RT5677 */
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static struct snd_soc_card bdw_rt5677_card = {
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.name = "bdw-rt5677",
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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,
|
||
|
|
.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");
|