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/*
* tegra_alc5632.c -- Toshiba AC100(PAZ00) machine ASoC driver
*
* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
* Copyright (C) 2012 - NVIDIA, Inc.
*
* Authors: Leon Romanovsky <leon@leon.nu>
* Andrey Danin <danindrey@mail.ru>
* Marc Dietrich <marvin24@gmx.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <asm/mach-types.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "../codecs/alc5632.h"
#include "tegra_asoc_utils.h"
#define DRV_NAME "tegra-alc5632"
#define GPIO_HP_DET BIT(0)
struct tegra_alc5632 {
struct tegra_asoc_utils_data util_data;
int gpio_requested;
int gpio_hp_det;
};
static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_card *card = codec->card;
struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
int srate, mclk;
int err;
srate = params_rate(params);
mclk = 512 * srate;
err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
if (err < 0) {
dev_err(card->dev, "Can't configure clocks\n");
return err;
}
err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
SND_SOC_CLOCK_IN);
if (err < 0) {
dev_err(card->dev, "codec_dai clock not set\n");
return err;
}
return 0;
}
static struct snd_soc_ops tegra_alc5632_asoc_ops = {
.hw_params = tegra_alc5632_asoc_hw_params,
};
static struct snd_soc_jack tegra_alc5632_hs_jack;
static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
{
.pin = "Headset Stereophone",
.mask = SND_JACK_HEADPHONE,
},
};
static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
.name = "Headset detection",
.report = SND_JACK_HEADSET,
.debounce_time = 150,
.invert = 1,
};
static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Int Spk", NULL),
SND_SOC_DAPM_HP("Headset Stereophone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Digital Mic", NULL),
};
static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
SOC_DAPM_PIN_SWITCH("Int Spk"),
};
static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
struct snd_soc_dapm_context *dapm = &codec->dapm;
struct device_node *np = codec->card->dev->of_node;
struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(codec->card);
snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
&tegra_alc5632_hs_jack);
snd_soc_jack_add_pins(&tegra_alc5632_hs_jack,
ARRAY_SIZE(tegra_alc5632_hs_jack_pins),
tegra_alc5632_hs_jack_pins);
machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
if (gpio_is_valid(machine->gpio_hp_det)) {
tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
1,
&tegra_alc5632_hp_jack_gpio);
machine->gpio_requested |= GPIO_HP_DET;
}
snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
return 0;
}
static struct snd_soc_dai_link tegra_alc5632_dai = {
.name = "ALC5632",
.stream_name = "ALC5632 PCM",
.codec_dai_name = "alc5632-hifi",
.init = tegra_alc5632_asoc_init,
.ops = &tegra_alc5632_asoc_ops,
.dai_fmt = SND_SOC_DAIFMT_I2S
| SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS,
};
static struct snd_soc_card snd_soc_tegra_alc5632 = {
.name = "tegra-alc5632",
.owner = THIS_MODULE,
.dai_link = &tegra_alc5632_dai,
.num_links = 1,
.controls = tegra_alc5632_controls,
.num_controls = ARRAY_SIZE(tegra_alc5632_controls),
.dapm_widgets = tegra_alc5632_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
.fully_routed = true,
};
static __devinit int tegra_alc5632_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &snd_soc_tegra_alc5632;
struct tegra_alc5632 *alc5632;
int ret;
alc5632 = devm_kzalloc(&pdev->dev,
sizeof(struct tegra_alc5632), GFP_KERNEL);
if (!alc5632) {
dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
ret = -ENOMEM;
goto err;
}
card->dev = &pdev->dev;
platform_set_drvdata(pdev, card);
snd_soc_card_set_drvdata(card, alc5632);
if (!(pdev->dev.of_node)) {
dev_err(&pdev->dev, "Must be instantiated using device tree\n");
ret = -EINVAL;
goto err;
}
ret = snd_soc_of_parse_card_name(card, "nvidia,model");
if (ret)
goto err;
ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
if (ret)
goto err;
tegra_alc5632_dai.codec_of_node = of_parse_phandle(
pdev->dev.of_node, "nvidia,audio-codec", 0);
if (!tegra_alc5632_dai.codec_of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,audio-codec' missing or invalid\n");
ret = -EINVAL;
goto err;
}
tegra_alc5632_dai.cpu_dai_of_node = of_parse_phandle(
pdev->dev.of_node, "nvidia,i2s-controller", 0);
if (!tegra_alc5632_dai.cpu_dai_of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,i2s-controller' missing or invalid\n");
ret = -EINVAL;
goto err;
}
tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_dai_of_node;
ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
if (ret)
goto err;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
ret);
goto err_fini_utils;
}
return 0;
err_fini_utils:
tegra_asoc_utils_fini(&alc5632->util_data);
err:
return ret;
}
static int __devexit tegra_alc5632_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
if (machine->gpio_requested & GPIO_HP_DET)
snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack,
1,
&tegra_alc5632_hp_jack_gpio);
machine->gpio_requested = 0;
snd_soc_unregister_card(card);
tegra_asoc_utils_fini(&machine->util_data);
return 0;
}
static const struct of_device_id tegra_alc5632_of_match[] __devinitconst = {
{ .compatible = "nvidia,tegra-audio-alc5632", },
{},
};
static struct platform_driver tegra_alc5632_driver = {
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
.of_match_table = tegra_alc5632_of_match,
},
.probe = tegra_alc5632_probe,
.remove = __devexit_p(tegra_alc5632_remove),
};
module_platform_driver(tegra_alc5632_driver);
MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);
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