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// 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 <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 <uapi/linux/input-event-codes.h>
#include "../codecs/rt5682.h"
#include "common.h"
#include "lpass.h"
#define DEFAULT_MCLK_RATE 19200000
#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;
};
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 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 = 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, "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, NULL, 0);
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 = 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, NULL, 0);
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 = asoc_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_snd_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card);
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;
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);
}
snd_soc_dai_set_fmt(codec_dai,
SND_SOC_DAIFMT_CBS_CFS |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_I2S);
/* Configure PLL1 for codec */
ret = snd_soc_dai_set_pll(codec_dai, 0, RT5682_PLL1_S_MCLK,
DEFAULT_MCLK_RATE, RT5682_PLL1_FREQ);
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, RT5682_SCLK_S_PLL1,
RT5682_PLL1_FREQ,
SND_SOC_CLOCK_IN);
if (ret)
dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n",
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 void sc7180_snd_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct sc7180_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 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 const struct snd_soc_ops sc7180_ops = {
.startup = sc7180_snd_startup,
.shutdown = sc7180_snd_shutdown,
};
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 void sc7180_add_ops(struct snd_soc_card *card)
{
struct snd_soc_dai_link *link;
int i;
for_each_card_prelinks(card, i, link) {
link->ops = &sc7180_ops;
link->init = sc7180_init;
}
}
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;
int ret;
/* 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);
ret = qcom_snd_parse_of(card);
if (ret)
return ret;
sc7180_add_ops(card);
return devm_snd_soc_register_card(dev, card);
}
static const struct of_device_id sc7180_snd_device_id[] = {
{ .compatible = "google,sc7180-trogdor"},
{},
};
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,
},
};
module_platform_driver(sc7180_snd_driver);
MODULE_DESCRIPTION("sc7180 ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
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