// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2023 Intel Corporation
//
// Authors: Cezary Rojewski <[email protected]>
// Amadeusz Slawinski <[email protected]>
//
#include <linux/device.h>
#include <linux/gpio/consumer.h>
#include <linux/input.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/processor.h>
#include <linux/slab.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include <asm/cpu_device_id.h>
#include "../utils.h"
#define ES8336_CODEC_DAI "ES8316 HiFi"
struct avs_card_drvdata {
struct snd_soc_jack jack;
struct gpio_desc *gpiod;
};
static const struct acpi_gpio_params enable_gpio = { 0, 0, true };
static const struct acpi_gpio_mapping speaker_gpios[] = {
{ "speaker-enable-gpios", &enable_gpio, 1, ACPI_GPIO_QUIRK_ONLY_GPIOIO },
{ }
};
static int avs_es8336_speaker_power_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_card *card = w->dapm->card;
struct avs_card_drvdata *data;
bool speaker_en;
data = snd_soc_card_get_drvdata(card);
/* As enable_gpio has active_low=true, logic is inverted. */
speaker_en = !SND_SOC_DAPM_EVENT_ON(event);
gpiod_set_value_cansleep(data->gpiod, speaker_en);
return 0;
}
static const struct snd_soc_dapm_widget card_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Internal Mic", NULL),
SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0,
avs_es8336_speaker_power_event,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
};
static const struct snd_soc_dapm_route card_routes[] = {
{"Headphone", NULL, "HPOL"},
{"Headphone", NULL, "HPOR"},
/*
* There is no separate speaker output instead the speakers are muxed to
* the HP outputs. The mux is controlled by the "Speaker Power" widget.
*/
{"Speaker", NULL, "HPOL"},
{"Speaker", NULL, "HPOR"},
{"Speaker", NULL, "Speaker Power"},
/* Mic route map */
{"MIC1", NULL, "Internal Mic"},
{"MIC2", NULL, "Headset Mic"},
};
static const struct snd_kcontrol_new card_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Internal Mic"),
};
static const struct snd_soc_jack_pin card_headset_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static int avs_es8336_codec_init(struct snd_soc_pcm_runtime *runtime)
{
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
struct snd_soc_component *component = codec_dai->component;
struct snd_soc_card *card = runtime->card;
struct snd_soc_jack_pin *pins;
struct avs_card_drvdata *data;
struct gpio_desc *gpiod;
int num_pins, ret;
data = snd_soc_card_get_drvdata(card);
num_pins = ARRAY_SIZE(card_headset_pins);
pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL);
if (!pins)
return -ENOMEM;
ret = snd_soc_card_jack_new_pins(card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0,
&data->jack, pins, num_pins);
if (ret)
return ret;
ret = devm_acpi_dev_add_driver_gpios(codec_dai->dev, speaker_gpios);
if (ret)
dev_warn(codec_dai->dev, "Unable to add GPIO mapping table\n");
gpiod = gpiod_get_optional(codec_dai->dev, "speaker-enable", GPIOD_OUT_LOW);
if (IS_ERR(gpiod))
return dev_err_probe(codec_dai->dev, PTR_ERR(gpiod), "Get gpiod failed: %ld\n",
PTR_ERR(gpiod));
data->gpiod = gpiod;
snd_jack_set_key(data->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_soc_component_set_jack(component, &data->jack, NULL);
card->dapm.idle_bias_off = true;
return 0;
}
static void avs_es8336_codec_exit(struct snd_soc_pcm_runtime *runtime)
{
struct avs_card_drvdata *data = snd_soc_card_get_drvdata(runtime->card);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
gpiod_put(data->gpiod);
}
static int avs_es8336_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *runtime = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(runtime, 0);
int clk_freq;
int ret;
switch (boot_cpu_data.x86_vfm) {
case INTEL_KABYLAKE_L:
case INTEL_KABYLAKE:
clk_freq = 24000000;
break;
default:
clk_freq = 19200000;
break;
}
ret = snd_soc_dai_set_sysclk(codec_dai, 1, clk_freq, SND_SOC_CLOCK_OUT);
if (ret < 0)
dev_err(runtime->dev, "Set codec sysclk failed: %d\n", ret);
return ret;
}
static const struct snd_soc_ops avs_es8336_ops = {
.hw_params = avs_es8336_hw_params,
};
static int avs_es8336_be_fixup(struct snd_soc_pcm_runtime *runtime,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate, *channels;
struct snd_mask *fmt;
rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
/* The ADSP will convert the FE rate to 48k, stereo */
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
/* set SSPN to 24 bit */
snd_mask_none(fmt);
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_3LE);
return 0;
}
static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
int tdm_slot, struct snd_soc_dai_link **dai_link)
{
struct snd_soc_dai_link_component *platform;
struct snd_soc_dai_link *dl;
dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
if (!dl || !platform)
return -ENOMEM;
platform->name = platform_name;
dl->name = devm_kasprintf(dev, GFP_KERNEL,
AVS_STRING_FMT("SSP", "-Codec", ssp_port, tdm_slot));
dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
if (!dl->name || !dl->cpus || !dl->codecs)
return -ENOMEM;
dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
AVS_STRING_FMT("SSP", " Pin", ssp_port, tdm_slot));
dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-ESSX8336:00");
dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, ES8336_CODEC_DAI);
if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name)
return -ENOMEM;
dl->num_cpus = 1;
dl->num_codecs = 1;
dl->platforms = platform;
dl->num_platforms = 1;
dl->id = 0;
dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC;
dl->init = avs_es8336_codec_init;
dl->exit = avs_es8336_codec_exit;
dl->be_hw_params_fixup = avs_es8336_be_fixup;
dl->ops = &avs_es8336_ops;
dl->nonatomic = 1;
dl->no_pcm = 1;
dl->dpcm_capture = 1;
dl->dpcm_playback = 1;
*dai_link = dl;
return 0;
}
static int avs_card_suspend_pre(struct snd_soc_card *card)
{
struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI);
return snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
}
static int avs_card_resume_post(struct snd_soc_card *card)
{
struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, ES8336_CODEC_DAI);
struct avs_card_drvdata *data = snd_soc_card_get_drvdata(card);
return snd_soc_component_set_jack(codec_dai->component, &data->jack, NULL);
}
static int avs_es8336_probe(struct platform_device *pdev)
{
struct snd_soc_dai_link *dai_link;
struct snd_soc_acpi_mach *mach;
struct avs_card_drvdata *data;
struct snd_soc_card *card;
struct device *dev = &pdev->dev;
const char *pname;
int ssp_port, tdm_slot, ret;
mach = dev_get_platdata(dev);
pname = mach->mach_params.platform;
ret = avs_mach_get_ssp_tdm(dev, mach, &ssp_port, &tdm_slot);
if (ret)
return ret;
ret = avs_create_dai_link(dev, pname, ssp_port, tdm_slot, &dai_link);
if (ret) {
dev_err(dev, "Failed to create dai link: %d", ret);
return ret;
}
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!data || !card)
return -ENOMEM;
card->name = "avs_es8336";
card->dev = dev;
card->owner = THIS_MODULE;
card->suspend_pre = avs_card_suspend_pre;
card->resume_post = avs_card_resume_post;
card->dai_link = dai_link;
card->num_links = 1;
card->controls = card_controls;
card->num_controls = ARRAY_SIZE(card_controls);
card->dapm_widgets = card_widgets;
card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
card->dapm_routes = card_routes;
card->num_dapm_routes = ARRAY_SIZE(card_routes);
card->fully_routed = true;
snd_soc_card_set_drvdata(card, data);
ret = snd_soc_fixup_dai_links_platform_name(card, pname);
if (ret)
return ret;
return devm_snd_soc_register_card(dev, card);
}
static const struct platform_device_id avs_es8336_driver_ids[] = {
{
.name = "avs_es8336",
},
{},
};
MODULE_DEVICE_TABLE(platform, avs_es8336_driver_ids);
static struct platform_driver avs_es8336_driver = {
.probe = avs_es8336_probe,
.driver = {
.name = "avs_es8336",
.pm = &snd_soc_pm_ops,
},
.id_table = avs_es8336_driver_ids,
};
module_platform_driver(avs_es8336_driver);
MODULE_DESCRIPTION("Intel es8336 machine driver");
MODULE_LICENSE("GPL");
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