[deliverable/linux.git] / sound / soc / jz4740 / qi_lb60.c

/*
 * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.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.
 *
 *  You should have received a copy of the  GNU General Public License along
 *  with this program; if not, write  to the Free Software Foundation, Inc.,
 *  675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <linux/gpio/consumer.h>

struct qi_lb60 {
	struct gpio_desc *snd_gpio;
	struct gpio_desc *amp_gpio;
};

static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
			     struct snd_kcontrol *ctrl, int event)
{
	struct qi_lb60 *qi_lb60 = snd_soc_card_get_drvdata(widget->dapm->card);
	int on = !SND_SOC_DAPM_EVENT_OFF(event);

	gpiod_set_value_cansleep(qi_lb60->snd_gpio, on);
	gpiod_set_value_cansleep(qi_lb60->amp_gpio, on);

	return 0;
}

static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
	SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
	SND_SOC_DAPM_MIC("Mic", NULL),
};

static const struct snd_soc_dapm_route qi_lb60_routes[] = {
	{"Mic", NULL, "MIC"},
	{"Speaker", NULL, "LOUT"},
	{"Speaker", NULL, "ROUT"},
};

static struct snd_soc_dai_link qi_lb60_dai = {
	.name = "jz4740",
	.stream_name = "jz4740",
	.cpu_dai_name = "jz4740-i2s",
	.platform_name = "jz4740-i2s",
	.codec_dai_name = "jz4740-hifi",
	.codec_name = "jz4740-codec",
	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
		SND_SOC_DAIFMT_CBM_CFM,
};

static struct snd_soc_card qi_lb60_card = {
	.name = "QI LB60",
	.owner = THIS_MODULE,
	.dai_link = &qi_lb60_dai,
	.num_links = 1,

	.dapm_widgets = qi_lb60_widgets,
	.num_dapm_widgets = ARRAY_SIZE(qi_lb60_widgets),
	.dapm_routes = qi_lb60_routes,
	.num_dapm_routes = ARRAY_SIZE(qi_lb60_routes),
	.fully_routed = true,
};

static int qi_lb60_probe(struct platform_device *pdev)
{
	struct qi_lb60 *qi_lb60;
	struct snd_soc_card *card = &qi_lb60_card;

	qi_lb60 = devm_kzalloc(&pdev->dev, sizeof(*qi_lb60), GFP_KERNEL);
	if (!qi_lb60)
		return -ENOMEM;

	qi_lb60->snd_gpio = devm_gpiod_get(&pdev->dev, "snd", GPIOD_OUT_LOW);
	if (IS_ERR(qi_lb60->snd_gpio))
		return PTR_ERR(qi_lb60->snd_gpio);

	qi_lb60->amp_gpio = devm_gpiod_get(&pdev->dev, "amp", GPIOD_OUT_LOW);
	if (IS_ERR(qi_lb60->amp_gpio))
		return PTR_ERR(qi_lb60->amp_gpio);

	card->dev = &pdev->dev;

	snd_soc_card_set_drvdata(card, qi_lb60);

	return devm_snd_soc_register_card(&pdev->dev, card);
}

static struct platform_driver qi_lb60_driver = {
	.driver		= {
		.name	= "qi-lb60-audio",
	},
	.probe		= qi_lb60_probe,
};

module_platform_driver(qi_lb60_driver);

MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:qi-lb60-audio");
Commit	Line	Data
5898dd9e LPC	1	/*
	2	* Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*
	8	* You should have received a copy of the GNU General Public License along
	9	* with this program; if not, write to the Free Software Foundation, Inc.,
	10	* 675 Mass Ave, Cambridge, MA 02139, USA.
	11	*
	12	*/
	13
	14	#include <linux/module.h>
	15	#include <linux/moduleparam.h>
	16	#include <linux/timer.h>
	17	#include <linux/interrupt.h>
	18	#include <linux/platform_device.h>
	19	#include <sound/core.h>
	20	#include <sound/pcm.h>
	21	#include <sound/soc.h>
218e18a3	22	#include <linux/gpio/consumer.h>
5898dd9e	23
218e18a3 LPC	24	struct qi_lb60 {
	25	struct gpio_desc *snd_gpio;
	26	struct gpio_desc *amp_gpio;
	27	};
5898dd9e LPC	28
	29	static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget,
	30	struct snd_kcontrol *ctrl, int event)
	31	{
218e18a3	32	struct qi_lb60 *qi_lb60 = snd_soc_card_get_drvdata(widget->dapm->card);
621206b7	33	int on = !SND_SOC_DAPM_EVENT_OFF(event);
5898dd9e	34
218e18a3 LPC	35	gpiod_set_value_cansleep(qi_lb60->snd_gpio, on);
218e18a3 LPC	36	gpiod_set_value_cansleep(qi_lb60->amp_gpio, on);
5898dd9e LPC	37
	38	return 0;
	39	}
	40
	41	static const struct snd_soc_dapm_widget qi_lb60_widgets[] = {
	42	SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event),
	43	SND_SOC_DAPM_MIC("Mic", NULL),
	44	};
	45
	46	static const struct snd_soc_dapm_route qi_lb60_routes[] = {
	47	{"Mic", NULL, "MIC"},
	48	{"Speaker", NULL, "LOUT"},
	49	{"Speaker", NULL, "ROUT"},
	50	};
	51
5898dd9e LPC	52	static struct snd_soc_dai_link qi_lb60_dai = {
	53	.name = "jz4740",
	54	.stream_name = "jz4740",
f0fba2ad	55	.cpu_dai_name = "jz4740-i2s",
0406a40a	56	.platform_name = "jz4740-i2s",
f0fba2ad LG	57	.codec_dai_name = "jz4740-hifi",
f0fba2ad LG	58	.codec_name = "jz4740-codec",
0e746d7b LPC	59	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
0e746d7b LPC	60	SND_SOC_DAIFMT_CBM_CFM,
5898dd9e LPC	61	};
5898dd9e LPC	62
218e18a3	63	static struct snd_soc_card qi_lb60_card = {
5898dd9e	64	.name = "QI LB60",
1d9d25b3	65	.owner = THIS_MODULE,
5898dd9e LPC	66	.dai_link = &qi_lb60_dai,
5898dd9e LPC	67	.num_links = 1,
13319699 LPC	68
	69	.dapm_widgets = qi_lb60_widgets,
	70	.num_dapm_widgets = ARRAY_SIZE(qi_lb60_widgets),
	71	.dapm_routes = qi_lb60_routes,
	72	.num_dapm_routes = ARRAY_SIZE(qi_lb60_routes),
b8fb837b	73	.fully_routed = true,
5898dd9e LPC	74	};
5898dd9e LPC	75
d6a29e3d	76	static int qi_lb60_probe(struct platform_device *pdev)
5898dd9e	77	{
218e18a3 LPC	78	struct qi_lb60 *qi_lb60;
218e18a3 LPC	79	struct snd_soc_card *card = &qi_lb60_card;
5898dd9e	80
218e18a3 LPC	81	qi_lb60 = devm_kzalloc(&pdev->dev, sizeof(*qi_lb60), GFP_KERNEL);
	82	if (!qi_lb60)
	83	return -ENOMEM;
	84
69b93607	85	qi_lb60->snd_gpio = devm_gpiod_get(&pdev->dev, "snd", GPIOD_OUT_LOW);
218e18a3 LPC	86	if (IS_ERR(qi_lb60->snd_gpio))
218e18a3 LPC	87	return PTR_ERR(qi_lb60->snd_gpio);
218e18a3	88
69b93607	89	qi_lb60->amp_gpio = devm_gpiod_get(&pdev->dev, "amp", GPIOD_OUT_LOW);
218e18a3 LPC	90	if (IS_ERR(qi_lb60->amp_gpio))
218e18a3 LPC	91	return PTR_ERR(qi_lb60->amp_gpio);
5898dd9e	92
b33005f3	93	card->dev = &pdev->dev;
5898dd9e	94
218e18a3	95	snd_soc_card_set_drvdata(card, qi_lb60);
5898dd9e	96
218e18a3	97	return devm_snd_soc_register_card(&pdev->dev, card);
5898dd9e	98	}
b33005f3 AL	99
	100	static struct platform_driver qi_lb60_driver = {
	101	.driver = {
	102	.name = "qi-lb60-audio",
b33005f3 AL	103	},
b33005f3 AL	104	.probe = qi_lb60_probe,
b33005f3 AL	105	};
	106
	107	module_platform_driver(qi_lb60_driver);
5898dd9e LPC	108
	109	MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
	110	MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
	111	MODULE_LICENSE("GPL v2");
b33005f3	112	MODULE_ALIAS("platform:qi-lb60-audio");