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7f2c63d6ae
the microphone is attached to external codec(adau7002) instead of rt5682.We need to always use 32 bit format on sc7180 to meet the clock requirement of adau7002: The ADAU7002 requires a BCLK rate that is a minimum of 64× the LRCLK sample rate Signed-off-by: xuyuqing <xuyuqing@huaqin.corp-partner.google.com> Link: https://lore.kernel.org/r/20201118005858.123013-2-xuyuqing@huaqin.corp-partner.google.com Signed-off-by: Mark Brown <broonie@kernel.org>
391 lines
10 KiB
C
391 lines
10 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright (c) 2020, The Linux Foundation. All rights reserved.
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//
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// sc7180.c -- ALSA SoC Machine driver for SC7180
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#include <dt-bindings/sound/sc7180-lpass.h>
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#include <linux/gpio.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of_device.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/soc.h>
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#include <uapi/linux/input-event-codes.h>
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#include "../codecs/rt5682.h"
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#include "common.h"
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#include "lpass.h"
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#define DEFAULT_MCLK_RATE 19200000
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#define RT5682_PLL1_FREQ (48000 * 512)
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#define DRIVER_NAME "SC7180"
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struct sc7180_snd_data {
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struct snd_soc_card card;
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u32 pri_mi2s_clk_count;
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struct snd_soc_jack hs_jack;
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struct snd_soc_jack hdmi_jack;
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struct gpio_desc *dmic_sel;
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int dmic_switch;
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};
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static void sc7180_jack_free(struct snd_jack *jack)
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{
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struct snd_soc_component *component = jack->private_data;
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snd_soc_component_set_jack(component, NULL, NULL);
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}
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static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_card *card = rtd->card;
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struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(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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struct snd_jack *jack;
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int rval;
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rval = snd_soc_card_jack_new(
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card, "Headset Jack",
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SND_JACK_HEADSET |
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SND_JACK_HEADPHONE |
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SND_JACK_BTN_0 | SND_JACK_BTN_1 |
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SND_JACK_BTN_2 | SND_JACK_BTN_3,
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&pdata->hs_jack, NULL, 0);
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if (rval < 0) {
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dev_err(card->dev, "Unable to add Headset Jack\n");
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return rval;
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}
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jack = pdata->hs_jack.jack;
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snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
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snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
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snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
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snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
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jack->private_data = component;
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jack->private_free = sc7180_jack_free;
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return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
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}
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static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_card *card = rtd->card;
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struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(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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struct snd_jack *jack;
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int rval;
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rval = snd_soc_card_jack_new(
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card, "HDMI Jack",
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SND_JACK_LINEOUT,
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&pdata->hdmi_jack, NULL, 0);
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if (rval < 0) {
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dev_err(card->dev, "Unable to add HDMI Jack\n");
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return rval;
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}
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jack = pdata->hdmi_jack.jack;
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jack->private_data = component;
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jack->private_free = sc7180_jack_free;
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return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
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}
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static int sc7180_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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return sc7180_headset_init(rtd);
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case MI2S_SECONDARY:
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return 0;
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case LPASS_DP_RX:
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return sc7180_hdmi_init(rtd);
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default:
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
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cpu_dai->id);
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return -EINVAL;
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}
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return 0;
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}
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static int sc7180_snd_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_card *card = rtd->card;
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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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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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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if (++data->pri_mi2s_clk_count == 1) {
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snd_soc_dai_set_sysclk(cpu_dai,
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LPASS_MCLK0,
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DEFAULT_MCLK_RATE,
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SNDRV_PCM_STREAM_PLAYBACK);
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}
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snd_soc_dai_set_fmt(codec_dai,
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SND_SOC_DAIFMT_CBS_CFS |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_I2S);
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/* Configure PLL1 for codec */
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ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK,
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DEFAULT_MCLK_RATE, RT5682_PLL1_FREQ);
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if (ret) {
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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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/* Configure sysclk for codec */
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ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1,
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RT5682_PLL1_FREQ,
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SND_SOC_CLOCK_IN);
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if (ret)
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dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
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ret);
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break;
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case MI2S_SECONDARY:
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break;
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case LPASS_DP_RX:
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break;
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default:
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
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cpu_dai->id);
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return -EINVAL;
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}
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return 0;
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}
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static int dmic_get(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
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ucontrol->value.integer.value[0] = data->dmic_switch;
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return 0;
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}
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static int dmic_set(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
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data->dmic_switch = ucontrol->value.integer.value[0];
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gpiod_set_value(data->dmic_sel, data->dmic_switch);
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return 0;
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}
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static void sc7180_snd_shutdown(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_card *card = rtd->card;
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struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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if (--data->pri_mi2s_clk_count == 0) {
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snd_soc_dai_set_sysclk(cpu_dai,
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LPASS_MCLK0,
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0,
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SNDRV_PCM_STREAM_PLAYBACK);
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}
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break;
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case MI2S_SECONDARY:
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break;
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case LPASS_DP_RX:
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break;
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default:
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
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cpu_dai->id);
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break;
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}
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}
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static int sc7180_adau7002_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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return 0;
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case MI2S_SECONDARY:
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return 0;
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case LPASS_DP_RX:
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return sc7180_hdmi_init(rtd);
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default:
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
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cpu_dai->id);
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return -EINVAL;
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}
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return 0;
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}
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static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream)
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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 *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
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struct snd_pcm_runtime *runtime = substream->runtime;
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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snd_soc_dai_set_fmt(codec_dai,
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SND_SOC_DAIFMT_CBS_CFS |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_I2S);
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runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
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snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32);
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break;
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case MI2S_SECONDARY:
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break;
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case LPASS_DP_RX:
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break;
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default:
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dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
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cpu_dai->id);
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return -EINVAL;
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}
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return 0;
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}
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static const struct snd_soc_ops sc7180_ops = {
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.startup = sc7180_snd_startup,
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.shutdown = sc7180_snd_shutdown,
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};
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static const struct snd_soc_ops sc7180_adau7002_ops = {
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.startup = sc7180_adau7002_snd_startup,
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};
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static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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};
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static const struct snd_soc_dapm_widget sc7180_adau7002_snd_widgets[] = {
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SND_SOC_DAPM_MIC("DMIC", NULL),
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};
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static const char * const dmic_mux_text[] = {
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"Front Mic",
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"Rear Mic",
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};
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static SOC_ENUM_SINGLE_DECL(sc7180_dmic_enum,
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SND_SOC_NOPM, 0, dmic_mux_text);
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static const struct snd_kcontrol_new sc7180_dmic_mux_control =
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SOC_DAPM_ENUM_EXT("DMIC Select Mux", sc7180_dmic_enum,
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dmic_get, dmic_set);
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static const struct snd_soc_dapm_widget sc7180_snd_dual_mic_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("DMIC", NULL),
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SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &sc7180_dmic_mux_control),
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};
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static const struct snd_soc_dapm_route sc7180_snd_dual_mic_audio_route[] = {
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{"Dmic Mux", "Front Mic", "DMIC"},
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{"Dmic Mux", "Rear Mic", "DMIC"},
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};
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static int sc7180_snd_platform_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card;
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struct sc7180_snd_data *data;
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struct device *dev = &pdev->dev;
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struct snd_soc_dai_link *link;
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int ret;
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int i;
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bool no_headphone = false;
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/* Allocate the private data */
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data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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card = &data->card;
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snd_soc_card_set_drvdata(card, data);
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card->owner = THIS_MODULE;
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card->driver_name = DRIVER_NAME;
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card->dev = dev;
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card->dapm_widgets = sc7180_snd_widgets;
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card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets);
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if (of_property_read_bool(dev->of_node, "dmic-gpios")) {
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card->dapm_widgets = sc7180_snd_dual_mic_widgets,
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card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_dual_mic_widgets),
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card->dapm_routes = sc7180_snd_dual_mic_audio_route,
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card->num_dapm_routes = ARRAY_SIZE(sc7180_snd_dual_mic_audio_route),
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data->dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW);
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if (IS_ERR(data->dmic_sel)) {
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dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", PTR_ERR(data->dmic_sel));
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return PTR_ERR(data->dmic_sel);
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}
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}
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if (of_device_is_compatible(dev->of_node, "google,sc7180-coachz")) {
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no_headphone = true;
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card->dapm_widgets = sc7180_adau7002_snd_widgets;
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card->num_dapm_widgets = ARRAY_SIZE(sc7180_adau7002_snd_widgets);
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}
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ret = qcom_snd_parse_of(card);
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if (ret)
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return ret;
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for_each_card_prelinks(card, i, link) {
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if (no_headphone) {
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link->ops = &sc7180_adau7002_ops;
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link->init = sc7180_adau7002_init;
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} else {
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link->ops = &sc7180_ops;
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link->init = sc7180_init;
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}
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}
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return devm_snd_soc_register_card(dev, card);
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}
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static const struct of_device_id sc7180_snd_device_id[] = {
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{.compatible = "google,sc7180-trogdor"},
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{.compatible = "google,sc7180-coachz"},
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{},
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};
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MODULE_DEVICE_TABLE(of, sc7180_snd_device_id);
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static struct platform_driver sc7180_snd_driver = {
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.probe = sc7180_snd_platform_probe,
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.driver = {
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.name = "msm-snd-sc7180",
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.of_match_table = sc7180_snd_device_id,
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.pm = &snd_soc_pm_ops,
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},
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};
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module_platform_driver(sc7180_snd_driver);
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MODULE_DESCRIPTION("sc7180 ASoC Machine Driver");
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MODULE_LICENSE("GPL v2");
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