340 lines
9.1 KiB
C
340 lines
9.1 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 RT5650 codec
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*
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* Copyright 2019, The Chromium OS Authors. All rights reserved.
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*/
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-acpi.h>
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#include "../../codecs/rt5645.h"
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struct bdw_rt5650_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 const struct snd_soc_dapm_widget bdw_rt5650_widgets[] = {
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SND_SOC_DAPM_HP("Headphone", NULL),
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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("DMIC Pair1", NULL),
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SND_SOC_DAPM_MIC("DMIC Pair2", NULL),
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};
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static const struct snd_soc_dapm_route bdw_rt5650_map[] = {
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/* Speakers */
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{"Speaker", NULL, "SPOL"},
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{"Speaker", NULL, "SPOR"},
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/* Headset jack connectors */
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{"Headphone", NULL, "HPOL"},
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{"Headphone", NULL, "HPOR"},
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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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* DMIC Pair1 are the two DMICs connected on the DMICN1 connector.
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* DMIC Pair2 are the two DMICs connected on the DMICN2 connector.
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* Facing the camera, DMIC Pair1 are on the left side, DMIC Pair2
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* are on the right side.
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*/
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{"DMIC L1", NULL, "DMIC Pair1"},
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{"DMIC R1", NULL, "DMIC Pair1"},
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{"DMIC L2", NULL, "DMIC Pair2"},
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{"DMIC R2", NULL, "DMIC Pair2"},
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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_rt5650_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("DMIC Pair1"),
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SOC_DAPM_PIN_SWITCH("DMIC Pair2"),
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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 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, max 4-channels */
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rate->min = rate->max = 48000;
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chan->min = 2;
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chan->max = 4;
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/* set SSP0 to 24 bit */
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snd_mask_set_format(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT),
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SNDRV_PCM_FORMAT_S24_LE);
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return 0;
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}
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static int bdw_rt5650_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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/* Workaround: set codec PLL to 19.2MHz that PLL source is
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* from MCLK(24MHz) to conform 2.4MHz DMIC clock.
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*/
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ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
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24000000, 19200000);
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if (ret < 0) {
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dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
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return ret;
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}
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/* The actual MCLK freq is 24MHz. The codec is told that MCLK is
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* 24.576MHz to satisfy the requirement of rl6231_get_clk_info.
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* ASRC is enabled on AD and DA filters to ensure good audio quality.
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*/
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ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_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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return ret;
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}
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static struct snd_soc_ops bdw_rt5650_ops = {
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.hw_params = bdw_rt5650_hw_params,
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};
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static const unsigned int channels[] = {
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2, 4,
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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_rt5650_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 and quad configurations for capture */
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if (substream->stream != SNDRV_PCM_STREAM_CAPTURE)
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return 0;
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runtime->hw.channels_max = 4;
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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_rt5650_fe_ops = {
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.startup = bdw_rt5650_fe_startup,
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};
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static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct bdw_rt5650_priv *bdw_rt5650 =
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snd_soc_card_get_drvdata(rtd->card);
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
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struct snd_soc_component *component = codec_dai->component;
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int ret;
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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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rt5645_sel_asrc_clk_src(component,
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RT5645_DA_STEREO_FILTER |
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RT5645_DA_MONO_L_FILTER |
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RT5645_DA_MONO_R_FILTER |
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RT5645_AD_STEREO_FILTER |
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RT5645_AD_MONO_L_FILTER |
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RT5645_AD_MONO_R_FILTER,
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RT5645_CLK_SEL_I2S1_ASRC);
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/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
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ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
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if (ret < 0) {
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dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
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return ret;
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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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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, &mic_jack_pin, 1)) {
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dev_err(component->dev, "Can't create mic jack\n");
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}
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rt5645_set_jack_detect(component, &headphone_jack, &mic_jack, NULL);
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bdw_rt5650->component = component;
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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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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-10EC5650:00", "rt5645-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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static struct snd_soc_dai_link bdw_rt5650_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",
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.nonatomic = 1,
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.dynamic = 1,
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.ops = &bdw_rt5650_fe_ops,
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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_playback = 1,
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.dpcm_capture = 1,
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SND_SOC_DAILINK_REG(fe, dummy, platform),
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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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.nonatomic = 1,
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.no_pcm = 1,
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBC_CFC,
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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_rt5650_ops,
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.dpcm_playback = 1,
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.dpcm_capture = 1,
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.init = bdw_rt5650_init,
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SND_SOC_DAILINK_REG(ssp0_port, be, platform),
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},
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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 rt5650" /* card name will be 'sof-bdw rt5650' */
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#define SOF_DRIVER_NAME "SOF"
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#define CARD_NAME "bdw-rt5650"
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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 + RT5650 */
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static struct snd_soc_card bdw_rt5650_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_rt5650_dais,
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.num_links = ARRAY_SIZE(bdw_rt5650_dais),
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.dapm_widgets = bdw_rt5650_widgets,
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.num_dapm_widgets = ARRAY_SIZE(bdw_rt5650_widgets),
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.dapm_routes = bdw_rt5650_map,
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.num_dapm_routes = ARRAY_SIZE(bdw_rt5650_map),
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.controls = bdw_rt5650_controls,
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.num_controls = ARRAY_SIZE(bdw_rt5650_controls),
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.fully_routed = true,
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};
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static int bdw_rt5650_probe(struct platform_device *pdev)
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{
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struct bdw_rt5650_priv *bdw_rt5650;
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struct snd_soc_acpi_mach *mach;
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int ret;
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bdw_rt5650_card.dev = &pdev->dev;
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/* Allocate driver private struct */
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bdw_rt5650 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5650_priv),
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GFP_KERNEL);
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if (!bdw_rt5650)
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return -ENOMEM;
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/* override platform 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_rt5650_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_rt5650_card.name = SOF_CARD_NAME;
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bdw_rt5650_card.driver_name = SOF_DRIVER_NAME;
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} else {
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bdw_rt5650_card.name = CARD_NAME;
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bdw_rt5650_card.driver_name = DRIVER_NAME;
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}
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snd_soc_card_set_drvdata(&bdw_rt5650_card, bdw_rt5650);
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return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5650_card);
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}
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static struct platform_driver bdw_rt5650_audio = {
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.probe = bdw_rt5650_probe,
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.driver = {
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.name = "bdw-rt5650",
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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_rt5650_audio)
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/* Module information */
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MODULE_AUTHOR("Ben Zhang <benzh@chromium.org>");
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MODULE_DESCRIPTION("Intel Broadwell RT5650 machine driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:bdw-rt5650");
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