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linux-stable/sound/soc/qcom/sc7280.c
Alper Nebi Yasak 4ab959e5a1
ASoC: qcom: sc7280: Map missing jack kcontrols 
This driver does not properly map jack pins to kcontrols that PulseAudio
and PipeWire need to handle jack detection events. The RT5682 and
RT5682s codecs used here can detect Headphone and Headset Mic
connections. Expose each to userspace as a kcontrol.

Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Link: https://lore.kernel.org/r/20230802175737.263412-22-alpernebiyasak@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-08-07 14:33:02 +01:00

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// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
//
// ALSA SoC Machine driver for sc7280
#include <linux/input.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/rt5682s.h>
#include <linux/soundwire/sdw.h>
#include <sound/pcm_params.h>
#include "../codecs/rt5682.h"
#include "../codecs/rt5682s.h"
#include "common.h"
#include "lpass.h"
#include "qdsp6/q6afe.h"
#define DEFAULT_MCLK_RATE 19200000
#define RT5682_PLL_FREQ (48000 * 512)
#define MI2S_BCLK_RATE 1536000
struct sc7280_snd_data {
struct snd_soc_card card;
struct sdw_stream_runtime *sruntime[LPASS_MAX_PORTS];
u32 pri_mi2s_clk_count;
struct snd_soc_jack hs_jack;
struct snd_soc_jack hdmi_jack;
bool jack_setup;
bool stream_prepared[LPASS_MAX_PORTS];
};
static void sc7280_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 sc7280_jack_pins[] = {
{
.pin = "Headphone Jack",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static int sc7280_headset_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_component *component = codec_dai->component;
struct snd_jack *jack;
int rval, i;
if (!pdata->jack_setup) {
rval = snd_soc_card_jack_new_pins(card, "Headset Jack",
SND_JACK_HEADSET | SND_JACK_LINEOUT |
SND_JACK_MECHANICAL |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3 |
SND_JACK_BTN_4 | SND_JACK_BTN_5,
&pdata->hs_jack,
sc7280_jack_pins,
ARRAY_SIZE(sc7280_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 = sc7280_jack_free;
pdata->jack_setup = true;
}
switch (cpu_dai->id) {
case MI2S_PRIMARY:
case LPASS_CDC_DMA_RX0:
case LPASS_CDC_DMA_TX3:
case TX_CODEC_DMA_TX_3:
for_each_rtd_codec_dais(rtd, i, codec_dai) {
rval = snd_soc_component_set_jack(component, &pdata->hs_jack, NULL);
if (rval != 0 && rval != -ENOTSUPP) {
dev_err(card->dev, "Failed to set jack: %d\n", rval);
return rval;
}
}
break;
default:
break;
}
return 0;
}
static int sc7280_hdmi_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *codec_dai = asoc_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 = sc7280_jack_free;
return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL);
}
static int sc7280_rt5682_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
struct snd_soc_card *card = rtd->card;
struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
int ret;
if (++data->pri_mi2s_clk_count == 1) {
snd_soc_dai_set_sysclk(cpu_dai,
LPASS_MCLK0,
DEFAULT_MCLK_RATE,
SNDRV_PCM_STREAM_PLAYBACK);
}
snd_soc_dai_set_fmt(codec_dai,
SND_SOC_DAIFMT_CBC_CFC |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_I2S);
ret = snd_soc_dai_set_pll(codec_dai, RT5682S_PLL2, RT5682S_PLL_S_MCLK,
DEFAULT_MCLK_RATE, RT5682_PLL_FREQ);
if (ret) {
dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, RT5682S_SCLK_S_PLL2,
RT5682_PLL_FREQ,
SND_SOC_CLOCK_IN);
if (ret) {
dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
ret);
return ret;
}
return 0;
}
static int sc7280_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case MI2S_PRIMARY:
case LPASS_CDC_DMA_TX3:
case TX_CODEC_DMA_TX_3:
return sc7280_headset_init(rtd);
case LPASS_CDC_DMA_RX0:
case LPASS_CDC_DMA_VA_TX0:
case MI2S_SECONDARY:
case RX_CODEC_DMA_RX_0:
case SECONDARY_MI2S_RX:
case VA_CODEC_DMA_TX_0:
return 0;
case LPASS_DP_RX:
return sc7280_hdmi_init(rtd);
default:
dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
}
return -EINVAL;
}
static int sc7280_snd_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai;
const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct sc7280_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
struct sdw_stream_runtime *sruntime;
int i;
if (!rtd->dai_link->no_pcm) {
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, 48000, 48000);
}
switch (cpu_dai->id) {
case LPASS_CDC_DMA_TX3:
case LPASS_CDC_DMA_RX0:
case RX_CODEC_DMA_RX_0:
case SECONDARY_MI2S_RX:
case TX_CODEC_DMA_TX_3:
case VA_CODEC_DMA_TX_0:
for_each_rtd_codec_dais(rtd, i, codec_dai) {
sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
if (sruntime != ERR_PTR(-ENOTSUPP))
pdata->sruntime[cpu_dai->id] = sruntime;
}
break;
}
return 0;
}
static int sc7280_snd_swr_prepare(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
int ret;
if (!sruntime)
return 0;
if (data->stream_prepared[cpu_dai->id]) {
sdw_disable_stream(sruntime);
sdw_deprepare_stream(sruntime);
data->stream_prepared[cpu_dai->id] = false;
}
ret = sdw_prepare_stream(sruntime);
if (ret)
return ret;
ret = sdw_enable_stream(sruntime);
if (ret) {
sdw_deprepare_stream(sruntime);
return ret;
}
data->stream_prepared[cpu_dai->id] = true;
return ret;
}
static int sc7280_snd_prepare(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case LPASS_CDC_DMA_RX0:
case LPASS_CDC_DMA_TX3:
case RX_CODEC_DMA_RX_0:
case TX_CODEC_DMA_TX_3:
case VA_CODEC_DMA_TX_0:
return sc7280_snd_swr_prepare(substream);
default:
break;
}
return 0;
}
static int sc7280_snd_hw_free(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct sc7280_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
const struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
switch (cpu_dai->id) {
case LPASS_CDC_DMA_RX0:
case LPASS_CDC_DMA_TX3:
case RX_CODEC_DMA_RX_0:
case TX_CODEC_DMA_TX_3:
case VA_CODEC_DMA_TX_0:
if (sruntime && data->stream_prepared[cpu_dai->id]) {
sdw_disable_stream(sruntime);
sdw_deprepare_stream(sruntime);
data->stream_prepared[cpu_dai->id] = false;
}
break;
default:
break;
}
return 0;
}
static void sc7280_snd_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct sc7280_snd_data *data = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *cpu_dai = asoc_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 SECONDARY_MI2S_RX:
snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
0, SNDRV_PCM_STREAM_PLAYBACK);
break;
default:
break;
}
}
static int sc7280_snd_startup(struct snd_pcm_substream *substream)
{
unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
int ret = 0;
switch (cpu_dai->id) {
case MI2S_PRIMARY:
ret = sc7280_rt5682_init(rtd);
break;
case SECONDARY_MI2S_RX:
codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
snd_soc_dai_set_sysclk(cpu_dai, Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
snd_soc_dai_set_fmt(cpu_dai, fmt);
snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
break;
default:
break;
}
return ret;
}
static const struct snd_soc_ops sc7280_ops = {
.startup = sc7280_snd_startup,
.hw_params = sc7280_snd_hw_params,
.hw_free = sc7280_snd_hw_free,
.prepare = sc7280_snd_prepare,
.shutdown = sc7280_snd_shutdown,
};
static const struct snd_soc_dapm_widget sc7280_snd_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
};
static const struct snd_kcontrol_new sc7280_snd_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
};
static int sc7280_snd_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);
struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
return 0;
}
static int sc7280_snd_platform_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct sc7280_snd_data *data;
struct device *dev = &pdev->dev;
struct snd_soc_dai_link *link;
int ret, i;
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 = "SC7280";
card->dev = dev;
card->dapm_widgets = sc7280_snd_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sc7280_snd_widgets);
card->controls = sc7280_snd_controls;
card->num_controls = ARRAY_SIZE(sc7280_snd_controls);
ret = qcom_snd_parse_of(card);
if (ret)
return ret;
for_each_card_prelinks(card, i, link) {
link->init = sc7280_init;
link->ops = &sc7280_ops;
if (link->no_pcm == 1)
link->be_hw_params_fixup = sc7280_snd_be_hw_params_fixup;
}
return devm_snd_soc_register_card(dev, card);
}
static const struct of_device_id sc7280_snd_device_id[] = {
{ .compatible = "google,sc7280-herobrine" },
{}
};
MODULE_DEVICE_TABLE(of, sc7280_snd_device_id);
static struct platform_driver sc7280_snd_driver = {
.probe = sc7280_snd_platform_probe,
.driver = {
.name = "msm-snd-sc7280",
.of_match_table = sc7280_snd_device_id,
.pm = &snd_soc_pm_ops,
},
};
module_platform_driver(sc7280_snd_driver);
MODULE_DESCRIPTION("sc7280 ASoC Machine Driver");
MODULE_LICENSE("GPL");
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