189 lines
5 KiB
C
Executable file
189 lines
5 KiB
C
Executable file
/*
|
|
* Intel Baytrail SST MAX98090 machine driver
|
|
* Copyright (c) 2014, Intel Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/acpi.h>
|
|
#include <linux/device.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/slab.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/jack.h>
|
|
#include "../../codecs/max98090.h"
|
|
|
|
struct byt_max98090_private {
|
|
struct snd_soc_jack jack;
|
|
};
|
|
|
|
static const struct snd_soc_dapm_widget byt_max98090_widgets[] = {
|
|
SND_SOC_DAPM_HP("Headphone", NULL),
|
|
SND_SOC_DAPM_MIC("Headset Mic", NULL),
|
|
SND_SOC_DAPM_MIC("Int Mic", NULL),
|
|
SND_SOC_DAPM_SPK("Ext Spk", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route byt_max98090_audio_map[] = {
|
|
{"IN34", NULL, "Headset Mic"},
|
|
{"Headset Mic", NULL, "MICBIAS"},
|
|
{"DMICL", NULL, "Int Mic"},
|
|
{"Headphone", NULL, "HPL"},
|
|
{"Headphone", NULL, "HPR"},
|
|
{"Ext Spk", NULL, "SPKL"},
|
|
{"Ext Spk", NULL, "SPKR"},
|
|
};
|
|
|
|
static const struct snd_kcontrol_new byt_max98090_controls[] = {
|
|
SOC_DAPM_PIN_SWITCH("Headphone"),
|
|
SOC_DAPM_PIN_SWITCH("Headset Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Int Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Ext Spk"),
|
|
};
|
|
|
|
static struct snd_soc_jack_pin hs_jack_pins[] = {
|
|
{
|
|
.pin = "Headphone",
|
|
.mask = SND_JACK_HEADPHONE,
|
|
},
|
|
{
|
|
.pin = "Headset Mic",
|
|
.mask = SND_JACK_MICROPHONE,
|
|
},
|
|
};
|
|
|
|
static struct snd_soc_jack_gpio hs_jack_gpios[] = {
|
|
{
|
|
.name = "hp",
|
|
.report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
|
|
.debounce_time = 200,
|
|
},
|
|
{
|
|
.name = "mic",
|
|
.invert = 1,
|
|
.report = SND_JACK_MICROPHONE,
|
|
.debounce_time = 200,
|
|
},
|
|
};
|
|
|
|
static const struct acpi_gpio_params hp_gpios = { 0, 0, false };
|
|
static const struct acpi_gpio_params mic_gpios = { 1, 0, false };
|
|
|
|
static const struct acpi_gpio_mapping acpi_byt_max98090_gpios[] = {
|
|
{ "hp-gpios", &hp_gpios, 1 },
|
|
{ "mic-gpios", &mic_gpios, 1 },
|
|
{},
|
|
};
|
|
|
|
static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime)
|
|
{
|
|
int ret;
|
|
struct snd_soc_card *card = runtime->card;
|
|
struct byt_max98090_private *drv = snd_soc_card_get_drvdata(card);
|
|
struct snd_soc_jack *jack = &drv->jack;
|
|
|
|
card->dapm.idle_bias_off = true;
|
|
|
|
ret = snd_soc_dai_set_sysclk(runtime->codec_dai,
|
|
M98090_REG_SYSTEM_CLOCK,
|
|
25000000, SND_SOC_CLOCK_IN);
|
|
if (ret < 0) {
|
|
dev_err(card->dev, "Can't set codec clock %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Enable jack detection */
|
|
ret = snd_soc_card_jack_new(runtime->card, "Headset",
|
|
SND_JACK_LINEOUT | SND_JACK_HEADSET, jack,
|
|
hs_jack_pins, ARRAY_SIZE(hs_jack_pins));
|
|
if (ret)
|
|
return ret;
|
|
|
|
return snd_soc_jack_add_gpiods(card->dev->parent, jack,
|
|
ARRAY_SIZE(hs_jack_gpios),
|
|
hs_jack_gpios);
|
|
}
|
|
|
|
static struct snd_soc_dai_link byt_max98090_dais[] = {
|
|
{
|
|
.name = "Baytrail Audio",
|
|
.stream_name = "Audio",
|
|
.cpu_dai_name = "baytrail-pcm-audio",
|
|
.codec_dai_name = "HiFi",
|
|
.codec_name = "i2c-193C9890:00",
|
|
.platform_name = "baytrail-pcm-audio",
|
|
.init = byt_max98090_init,
|
|
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBS_CFS,
|
|
},
|
|
};
|
|
|
|
static struct snd_soc_card byt_max98090_card = {
|
|
.name = "byt-max98090",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = byt_max98090_dais,
|
|
.num_links = ARRAY_SIZE(byt_max98090_dais),
|
|
.dapm_widgets = byt_max98090_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(byt_max98090_widgets),
|
|
.dapm_routes = byt_max98090_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(byt_max98090_audio_map),
|
|
.controls = byt_max98090_controls,
|
|
.num_controls = ARRAY_SIZE(byt_max98090_controls),
|
|
.fully_routed = true,
|
|
};
|
|
|
|
static int byt_max98090_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
struct byt_max98090_private *priv;
|
|
int ret_val;
|
|
|
|
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv) {
|
|
dev_err(&pdev->dev, "allocation failed\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
ret_val = devm_acpi_dev_add_driver_gpios(dev->parent, acpi_byt_max98090_gpios);
|
|
if (ret_val)
|
|
dev_dbg(dev, "Unable to add GPIO mapping table\n");
|
|
|
|
byt_max98090_card.dev = &pdev->dev;
|
|
snd_soc_card_set_drvdata(&byt_max98090_card, priv);
|
|
ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_max98090_card);
|
|
if (ret_val) {
|
|
dev_err(&pdev->dev,
|
|
"snd_soc_register_card failed %d\n", ret_val);
|
|
return ret_val;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver byt_max98090_driver = {
|
|
.probe = byt_max98090_probe,
|
|
.driver = {
|
|
.name = "byt-max98090",
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
};
|
|
module_platform_driver(byt_max98090_driver)
|
|
|
|
MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver");
|
|
MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS("platform:byt-max98090");
|