259 строки
6.8 KiB
C
259 строки
6.8 KiB
C
/*
|
|
* tegra_rt5640.c - Tegra machine ASoC driver for boards using WM8903 codec.
|
|
*
|
|
* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Based on code copyright/by:
|
|
*
|
|
* Copyright (C) 2010-2012 - NVIDIA, Inc.
|
|
* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
|
|
* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
|
|
* Copyright 2007 Wolfson Microelectronics PLC.
|
|
*/
|
|
|
|
#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/rt5640.h"
|
|
|
|
#include "tegra_asoc_utils.h"
|
|
|
|
#define DRV_NAME "tegra-snd-rt5640"
|
|
|
|
struct tegra_rt5640 {
|
|
struct tegra_asoc_utils_data util_data;
|
|
int gpio_hp_det;
|
|
};
|
|
|
|
static int tegra_rt5640_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 = codec_dai->codec;
|
|
struct snd_soc_card *card = codec->card;
|
|
struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card);
|
|
int srate, mclk;
|
|
int err;
|
|
|
|
srate = params_rate(params);
|
|
mclk = 256 * srate;
|
|
|
|
err = tegra_asoc_utils_set_rate(&machine->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, RT5640_SCLK_S_MCLK, 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_rt5640_ops = {
|
|
.hw_params = tegra_rt5640_asoc_hw_params,
|
|
};
|
|
|
|
static struct snd_soc_jack tegra_rt5640_hp_jack;
|
|
|
|
static struct snd_soc_jack_pin tegra_rt5640_hp_jack_pins[] = {
|
|
{
|
|
.pin = "Headphones",
|
|
.mask = SND_JACK_HEADPHONE,
|
|
},
|
|
};
|
|
|
|
static struct snd_soc_jack_gpio tegra_rt5640_hp_jack_gpio = {
|
|
.name = "Headphone detection",
|
|
.report = SND_JACK_HEADPHONE,
|
|
.debounce_time = 150,
|
|
.invert = 1,
|
|
};
|
|
|
|
static const struct snd_soc_dapm_widget tegra_rt5640_dapm_widgets[] = {
|
|
SND_SOC_DAPM_HP("Headphones", NULL),
|
|
SND_SOC_DAPM_SPK("Speakers", NULL),
|
|
SND_SOC_DAPM_MIC("Mic Jack", NULL),
|
|
};
|
|
|
|
static const struct snd_kcontrol_new tegra_rt5640_controls[] = {
|
|
SOC_DAPM_PIN_SWITCH("Speakers"),
|
|
};
|
|
|
|
static int tegra_rt5640_asoc_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_dai *codec_dai = rtd->codec_dai;
|
|
struct snd_soc_codec *codec = codec_dai->codec;
|
|
struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(codec->card);
|
|
|
|
snd_soc_jack_new(codec, "Headphones", SND_JACK_HEADPHONE,
|
|
&tegra_rt5640_hp_jack);
|
|
snd_soc_jack_add_pins(&tegra_rt5640_hp_jack,
|
|
ARRAY_SIZE(tegra_rt5640_hp_jack_pins),
|
|
tegra_rt5640_hp_jack_pins);
|
|
|
|
if (gpio_is_valid(machine->gpio_hp_det)) {
|
|
tegra_rt5640_hp_jack_gpio.gpio = machine->gpio_hp_det;
|
|
snd_soc_jack_add_gpios(&tegra_rt5640_hp_jack,
|
|
1,
|
|
&tegra_rt5640_hp_jack_gpio);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_dai_link tegra_rt5640_dai = {
|
|
.name = "RT5640",
|
|
.stream_name = "RT5640 PCM",
|
|
.codec_dai_name = "rt5640-aif1",
|
|
.init = tegra_rt5640_asoc_init,
|
|
.ops = &tegra_rt5640_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_rt5640 = {
|
|
.name = "tegra-rt5640",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = &tegra_rt5640_dai,
|
|
.num_links = 1,
|
|
.controls = tegra_rt5640_controls,
|
|
.num_controls = ARRAY_SIZE(tegra_rt5640_controls),
|
|
.dapm_widgets = tegra_rt5640_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(tegra_rt5640_dapm_widgets),
|
|
.fully_routed = true,
|
|
};
|
|
|
|
static int tegra_rt5640_probe(struct platform_device *pdev)
|
|
{
|
|
struct device_node *np = pdev->dev.of_node;
|
|
struct snd_soc_card *card = &snd_soc_tegra_rt5640;
|
|
struct tegra_rt5640 *machine;
|
|
int ret;
|
|
|
|
machine = devm_kzalloc(&pdev->dev,
|
|
sizeof(struct tegra_rt5640), GFP_KERNEL);
|
|
if (!machine) {
|
|
dev_err(&pdev->dev, "Can't allocate tegra_rt5640\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
card->dev = &pdev->dev;
|
|
platform_set_drvdata(pdev, card);
|
|
snd_soc_card_set_drvdata(card, machine);
|
|
|
|
machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
|
|
if (machine->gpio_hp_det == -EPROBE_DEFER)
|
|
return -EPROBE_DEFER;
|
|
|
|
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_rt5640_dai.codec_of_node = of_parse_phandle(np,
|
|
"nvidia,audio-codec", 0);
|
|
if (!tegra_rt5640_dai.codec_of_node) {
|
|
dev_err(&pdev->dev,
|
|
"Property 'nvidia,audio-codec' missing or invalid\n");
|
|
ret = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
tegra_rt5640_dai.cpu_of_node = of_parse_phandle(np,
|
|
"nvidia,i2s-controller", 0);
|
|
if (!tegra_rt5640_dai.cpu_of_node) {
|
|
dev_err(&pdev->dev,
|
|
"Property 'nvidia,i2s-controller' missing or invalid\n");
|
|
ret = -EINVAL;
|
|
goto err;
|
|
}
|
|
|
|
tegra_rt5640_dai.platform_of_node = tegra_rt5640_dai.cpu_of_node;
|
|
|
|
ret = tegra_asoc_utils_init(&machine->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(&machine->util_data);
|
|
err:
|
|
return ret;
|
|
}
|
|
|
|
static int tegra_rt5640_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = platform_get_drvdata(pdev);
|
|
struct tegra_rt5640 *machine = snd_soc_card_get_drvdata(card);
|
|
|
|
snd_soc_jack_free_gpios(&tegra_rt5640_hp_jack, 1,
|
|
&tegra_rt5640_hp_jack_gpio);
|
|
|
|
snd_soc_unregister_card(card);
|
|
|
|
tegra_asoc_utils_fini(&machine->util_data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id tegra_rt5640_of_match[] = {
|
|
{ .compatible = "nvidia,tegra-audio-rt5640", },
|
|
{},
|
|
};
|
|
|
|
static struct platform_driver tegra_rt5640_driver = {
|
|
.driver = {
|
|
.name = DRV_NAME,
|
|
.owner = THIS_MODULE,
|
|
.pm = &snd_soc_pm_ops,
|
|
.of_match_table = tegra_rt5640_of_match,
|
|
},
|
|
.probe = tegra_rt5640_probe,
|
|
.remove = tegra_rt5640_remove,
|
|
};
|
|
module_platform_driver(tegra_rt5640_driver);
|
|
|
|
MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
|
|
MODULE_DESCRIPTION("Tegra+RT5640 machine ASoC driver");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_ALIAS("platform:" DRV_NAME);
|
|
MODULE_DEVICE_TABLE(of, tegra_rt5640_of_match);
|