[mirror_ubuntu-zesty-kernel.git] / sound / soc / codecs / dmic.c

/*
 * dmic.c  --  SoC audio for Generic Digital MICs
 *
 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
 *
 * 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.
 *
 * This program is distributed in the hope that 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

static struct snd_soc_dai_driver dmic_dai = {
	.name = "dmic-hifi",
	.capture = {
		.stream_name = "Capture",
		.channels_min = 1,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_CONTINUOUS,
		.formats = SNDRV_PCM_FMTBIT_S32_LE
			| SNDRV_PCM_FMTBIT_S24_LE
			| SNDRV_PCM_FMTBIT_S16_LE,
	},
};

static const struct snd_soc_dapm_widget dmic_dapm_widgets[] = {
	SND_SOC_DAPM_AIF_OUT("DMIC AIF", "Capture", 0,
			     SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_INPUT("DMic"),
};

static const struct snd_soc_dapm_route intercon[] = {
	{"DMIC AIF", NULL, "DMic"},
};

static struct snd_soc_codec_driver soc_dmic = {
	.component_driver = {
		.dapm_widgets		= dmic_dapm_widgets,
		.num_dapm_widgets	= ARRAY_SIZE(dmic_dapm_widgets),
		.dapm_routes		= intercon,
		.num_dapm_routes	= ARRAY_SIZE(intercon),
	},
};

static int dmic_dev_probe(struct platform_device *pdev)
{
	return snd_soc_register_codec(&pdev->dev,
			&soc_dmic, &dmic_dai, 1);
}

static int dmic_dev_remove(struct platform_device *pdev)
{
	snd_soc_unregister_codec(&pdev->dev);
	return 0;
}

MODULE_ALIAS("platform:dmic-codec");

static struct platform_driver dmic_driver = {
	.driver = {
		.name = "dmic-codec",
	},
	.probe = dmic_dev_probe,
	.remove = dmic_dev_remove,
};

module_platform_driver(dmic_driver);

MODULE_DESCRIPTION("Generic DMIC driver");
MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
MODULE_LICENSE("GPL");
Commit	Line	Data
a710770e DL	1	/*
	2	* dmic.c -- SoC audio for Generic Digital MICs
	3	*
	4	* Author: Liam Girdwood <lrg@slimlogic.co.uk>
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* version 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	18	* 02110-1301 USA
	19	*
	20	*/
	21
	22	#include <linux/platform_device.h>
	23	#include <linux/slab.h>
da155d5b	24	#include <linux/module.h>
a710770e DL	25	#include <sound/core.h>
	26	#include <sound/pcm.h>
	27	#include <sound/soc.h>
	28	#include <sound/soc-dapm.h>
	29
	30	static struct snd_soc_dai_driver dmic_dai = {
	31	.name = "dmic-hifi",
	32	.capture = {
	33	.stream_name = "Capture",
	34	.channels_min = 1,
	35	.channels_max = 8,
	36	.rates = SNDRV_PCM_RATE_CONTINUOUS,
	37	.formats = SNDRV_PCM_FMTBIT_S32_LE
	38	\| SNDRV_PCM_FMTBIT_S24_LE
	39	\| SNDRV_PCM_FMTBIT_S16_LE,
	40	},
	41	};
	42
d5e4b0ad MLC	43	static const struct snd_soc_dapm_widget dmic_dapm_widgets[] = {
	44	SND_SOC_DAPM_AIF_OUT("DMIC AIF", "Capture", 0,
	45	SND_SOC_NOPM, 0, 0),
	46	SND_SOC_DAPM_INPUT("DMic"),
	47	};
	48
	49	static const struct snd_soc_dapm_route intercon[] = {
	50	{"DMIC AIF", NULL, "DMic"},
	51	};
	52
d5e4b0ad	53	static struct snd_soc_codec_driver soc_dmic = {
a73b8e89 KM	54	.component_driver = {
	55	.dapm_widgets = dmic_dapm_widgets,
	56	.num_dapm_widgets = ARRAY_SIZE(dmic_dapm_widgets),
	57	.dapm_routes = intercon,
	58	.num_dapm_routes = ARRAY_SIZE(intercon),
	59	},
d5e4b0ad	60	};
a710770e	61
7a79e94e	62	static int dmic_dev_probe(struct platform_device *pdev)
a710770e DL	63	{
	64	return snd_soc_register_codec(&pdev->dev,
	65	&soc_dmic, &dmic_dai, 1);
	66	}
	67
7a79e94e	68	static int dmic_dev_remove(struct platform_device *pdev)
a710770e DL	69	{
	70	snd_soc_unregister_codec(&pdev->dev);
	71	return 0;
	72	}
	73
	74	MODULE_ALIAS("platform:dmic-codec");
	75
	76	static struct platform_driver dmic_driver = {
	77	.driver = {
	78	.name = "dmic-codec",
a710770e DL	79	},
a710770e DL	80	.probe = dmic_dev_probe,
7a79e94e	81	.remove = dmic_dev_remove,
a710770e DL	82	};
a710770e DL	83
5bbcc3c0	84	module_platform_driver(dmic_driver);
a710770e DL	85
	86	MODULE_DESCRIPTION("Generic DMIC driver");
	87	MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
	88	MODULE_LICENSE("GPL");