// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (c) 2020, The Linux Foundation. All rights reserved.
//
// sc7180.c -- ALSA SoC Machine driver for SC7180
#include <dt-bindings/sound/sc7180-lpass.h>
#include <dt-bindings/sound/qcom,q6afe.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <uapi/linux/input-event-codes.h>
#include "../codecs/rt5682.h"
#include "../codecs/rt5682s.h"
#include "common.h"
#include "qdsp6/q6afe.h"
#define DEFAULT_MCLK_RATE 19200000
#define MI2S_BCLK_RATE 1536000
#define RT5682_PLL1_FREQ (48000 * 512)
#define DRIVER_NAME "SC7180"
struct sc7180_snd_data {
struct snd_soc_card card;
u32 pri_mi2s_clk_count;
struct snd_soc_jack hs_jack;
struct snd_soc_jack hdmi_jack;
struct gpio_desc *dmic_sel;
int dmic_switch;
};
static void sc7180_jack_free(struct snd_jack *jack)
{
struct snd_soc_component *component = jack->private_data;
snd_soc_component_set_jack(component, NULL, NULL);
}
static struct snd_soc_jack_pin sc7180_jack_pins[] = {
{
.pin = "Headphone Jack",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
struct snd_soc_component *component = codec_dai->component;
struct snd_jack *jack;
int rval;
rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
SND_JACK_HEADSET |
SND_JACK_HEADPHONE |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3,
&pdata->hs_jack,
sc7180_jack_pins,
ARRAY_SIZE(sc7180_jack_pins));
if (rval < 0) {
dev_err(card->dev, "Unable to add Headset Jack\n");
return rval;
}
jack = pdata->hs_jack.jack;
snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
jack->private_data = component;
jack->private_free = sc7180_jack_free;
return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
}
static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
struct snd_soc_component *component = codec_dai->component;
struct snd_jack *jack;
int rval;
rval = snd_soc_card_jack_new(
card, "HDMI Jack",
SND_JACK_LINEOUT,
&pdata->hdmi_jack);
if (rval < 0) {
dev_err(card->dev, "Unable to add HDMI Jack\n");
return rval;
}
jack = pdata->hdmi_jack.jack;
jack->private_data = component;
jack->private_free = sc7180_jack_free;
return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
}
static int sc7180_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case MI2S_PRIMARY:
return sc7180_headset_init(rtd);
case MI2S_SECONDARY:
return 0;
case LPASS_DP_RX:
return sc7180_hdmi_init(rtd);
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
return -EINVAL;
}
return 0;
}
static int sc7180_qdsp_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case PRIMARY_MI2S_RX:
return sc7180_headset_init(rtd);
case PRIMARY_MI2S_TX:
case TERTIARY_MI2S_RX:
return 0;
case DISPLAY_PORT_RX:
return sc7180_hdmi_init(rtd);
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
return -EINVAL;
}
return 0;
}
static int sc7180_startup_realtek_codec(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
int pll_id, pll_source, pll_in, pll_out, clk_id, ret;
if (!strcmp(codec_dai->name, "rt5682-aif1")) {
pll_source = RT5682_PLL1_S_MCLK;
pll_id = 0;
clk_id = RT5682_SCLK_S_PLL1;
pll_out = RT5682_PLL1_FREQ;
pll_in = DEFAULT_MCLK_RATE;
} else if (!strcmp(codec_dai->name, "rt5682s-aif1")) {
pll_source = RT5682S_PLL_S_MCLK;
pll_id = RT5682S_PLL2;
clk_id = RT5682S_SCLK_S_PLL2;
pll_out = RT5682_PLL1_FREQ;
pll_in = DEFAULT_MCLK_RATE;
} else {
return 0;
}
snd_soc_dai_set_fmt(codec_dai,
SND_SOC_DAIFMT_BC_FC |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_I2S);
/* Configure PLL1 for codec */
ret = snd_soc_dai_set_pll(codec_dai, pll_id, pll_source,
pll_in, pll_out);
if (ret) {
dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
return ret;
}
/* Configure sysclk for codec */
ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, pll_out,
SND_SOC_CLOCK_IN);
if (ret)
dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
ret);
return ret;
}
static int sc7180_snd_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_card *card = rtd->card;
struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
int ret;
switch (cpu_dai->id) {
case MI2S_PRIMARY:
if (++data->pri_mi2s_clk_count == 1) {
snd_soc_dai_set_sysclk(cpu_dai,
LPASS_MCLK0,
DEFAULT_MCLK_RATE,
SNDRV_PCM_STREAM_PLAYBACK);
}
ret = sc7180_startup_realtek_codec(rtd);
if (ret)
return ret;
break;
case MI2S_SECONDARY:
break;
case LPASS_DP_RX:
break;
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
return -EINVAL;
}
return 0;
}
static int sc7180_qdsp_snd_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_card *card = rtd->card;
struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
int ret;
switch (cpu_dai->id) {
case PRIMARY_MI2S_RX:
case PRIMARY_MI2S_TX:
if (++data->pri_mi2s_clk_count == 1) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_MCLK_1,
DEFAULT_MCLK_RATE,
SNDRV_PCM_STREAM_PLAYBACK);
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
MI2S_BCLK_RATE,
SNDRV_PCM_STREAM_PLAYBACK);
}
snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP);
ret = sc7180_startup_realtek_codec(rtd);
if (ret)
return ret;
break;
case TERTIARY_MI2S_RX:
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_TER_MI2S_IBIT,
MI2S_BCLK_RATE,
SNDRV_PCM_STREAM_PLAYBACK);
snd_soc_dai_set_fmt(codec_dai,
SND_SOC_DAIFMT_BC_FC |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_I2S);
snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP);
break;
case DISPLAY_PORT_RX:
break;
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
return -EINVAL;
}
return 0;
}
static int dmic_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
ucontrol->value.integer.value[0] = data->dmic_switch;
return 0;
}
static int dmic_set(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol);
struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card);
data->dmic_switch = ucontrol->value.integer.value[0];
gpiod_set_value(data->dmic_sel, data->dmic_switch);
return 0;
}
static void sc7180_snd_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_card *card = rtd->card;
struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case MI2S_PRIMARY:
if (--data->pri_mi2s_clk_count == 0) {
snd_soc_dai_set_sysclk(cpu_dai,
LPASS_MCLK0,
0,
SNDRV_PCM_STREAM_PLAYBACK);
}
break;
case MI2S_SECONDARY:
break;
case LPASS_DP_RX:
break;
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
break;
}
}
static void sc7180_qdsp_snd_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_card *card = rtd->card;
struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case PRIMARY_MI2S_RX:
case PRIMARY_MI2S_TX:
if (--data->pri_mi2s_clk_count == 0) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_MCLK_1,
0,
SNDRV_PCM_STREAM_PLAYBACK);
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
0,
SNDRV_PCM_STREAM_PLAYBACK);
}
break;
case TERTIARY_MI2S_RX:
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_TER_MI2S_IBIT,
0,
SNDRV_PCM_STREAM_PLAYBACK);
break;
case DISPLAY_PORT_RX:
break;
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
break;
}
}
static int sc7180_adau7002_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case MI2S_PRIMARY:
return 0;
case MI2S_SECONDARY:
return 0;
case LPASS_DP_RX:
return sc7180_hdmi_init(rtd);
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
return -EINVAL;
}
return 0;
}
static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
struct snd_pcm_runtime *runtime = substream->runtime;
switch (cpu_dai->id) {
case MI2S_PRIMARY:
snd_soc_dai_set_fmt(codec_dai,
SND_SOC_DAIFMT_CBS_CFS |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_I2S);
runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE;
snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32);
break;
case MI2S_SECONDARY:
break;
case LPASS_DP_RX:
break;
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__,
cpu_dai->id);
return -EINVAL;
}
return 0;
}
static int sc7180_qdsp_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
return 0;
}
static const struct snd_soc_ops sc7180_ops = {
.startup = sc7180_snd_startup,
.shutdown = sc7180_snd_shutdown,
};
static const struct snd_soc_ops sc7180_qdsp_ops = {
.startup = sc7180_qdsp_snd_startup,
.shutdown = sc7180_qdsp_snd_shutdown,
};
static const struct snd_soc_ops sc7180_adau7002_ops = {
.startup = sc7180_adau7002_snd_startup,
};
static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
};
static const struct snd_kcontrol_new sc7180_snd_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static const struct snd_soc_dapm_widget sc7180_adau7002_snd_widgets[] = {
SND_SOC_DAPM_MIC("DMIC", NULL),
};
static const char * const dmic_mux_text[] = {
"Front Mic",
"Rear Mic",
};
static SOC_ENUM_SINGLE_DECL(sc7180_dmic_enum,
SND_SOC_NOPM, 0, dmic_mux_text);
static const struct snd_kcontrol_new sc7180_dmic_mux_control =
SOC_DAPM_ENUM_EXT("DMIC Select Mux", sc7180_dmic_enum,
dmic_get, dmic_set);
static const struct snd_soc_dapm_widget sc7180_snd_dual_mic_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("DMIC", NULL),
SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &sc7180_dmic_mux_control),
};
static const struct snd_kcontrol_new sc7180_snd_dual_mic_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static const struct snd_soc_dapm_route sc7180_snd_dual_mic_audio_route[] = {
{"Dmic Mux", "Front Mic", "DMIC"},
{"Dmic Mux", "Rear Mic", "DMIC"},
};
static int sc7180_snd_platform_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct sc7180_snd_data *data;
struct device *dev = &pdev->dev;
struct snd_soc_dai_link *link;
int ret;
int i;
bool qdsp = false, no_headphone = false;
/* Allocate the private data */
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
card = &data->card;
snd_soc_card_set_drvdata(card, data);
card->owner = THIS_MODULE;
card->driver_name = DRIVER_NAME;
card->dev = dev;
card->dapm_widgets = sc7180_snd_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets);
card->controls = sc7180_snd_controls;
card->num_controls = ARRAY_SIZE(sc7180_snd_controls);
if (of_property_read_bool(dev->of_node, "dmic-gpios")) {
card->dapm_widgets = sc7180_snd_dual_mic_widgets,
card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_dual_mic_widgets),
card->controls = sc7180_snd_dual_mic_controls,
card->num_controls = ARRAY_SIZE(sc7180_snd_dual_mic_controls),
card->dapm_routes = sc7180_snd_dual_mic_audio_route,
card->num_dapm_routes = ARRAY_SIZE(sc7180_snd_dual_mic_audio_route),
data->dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW);
if (IS_ERR(data->dmic_sel)) {
dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", PTR_ERR(data->dmic_sel));
return PTR_ERR(data->dmic_sel);
}
}
if (of_device_is_compatible(dev->of_node, "google,sc7180-coachz")) {
no_headphone = true;
card->dapm_widgets = sc7180_adau7002_snd_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sc7180_adau7002_snd_widgets);
} else if (of_device_is_compatible(dev->of_node, "qcom,sc7180-qdsp6-sndcard")) {
qdsp = true;
}
ret = qcom_snd_parse_of(card);
if (ret)
return ret;
for_each_card_prelinks(card, i, link) {
if (no_headphone) {
link->ops = &sc7180_adau7002_ops;
link->init = sc7180_adau7002_init;
} else if (qdsp) {
if (link->no_pcm == 1) {
link->ops = &sc7180_qdsp_ops;
link->be_hw_params_fixup = sc7180_qdsp_be_hw_params_fixup;
link->init = sc7180_qdsp_init;
}
} else {
link->ops = &sc7180_ops;
link->init = sc7180_init;
}
}
return devm_snd_soc_register_card(dev, card);
}
static const struct of_device_id sc7180_snd_device_id[] = {
{.compatible = "google,sc7180-trogdor"},
{.compatible = "google,sc7180-coachz"},
{.compatible = "qcom,sc7180-qdsp6-sndcard"},
{},
};
MODULE_DEVICE_TABLE(of, sc7180_snd_device_id);
static struct platform_driver sc7180_snd_driver = {
.probe = sc7180_snd_platform_probe,
.driver = {
.name = "msm-snd-sc7180",
.of_match_table = sc7180_snd_device_id,
.pm = &snd_soc_pm_ops,
},
};
module_platform_driver(sc7180_snd_driver);
MODULE_DESCRIPTION("sc7180 ASoC Machine Driver");
MODULE_LICENSE("GPL");
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