ASoC: DMIC codec: Adding a generic DMIC codec (a710770e) · Commits · 戴 / test

sound/soc/codecs/Kconfig

+3 −0

Original line number	Diff line number	Diff line
		@@ -166,6 +166,9 @@ config SND_SOC_L3
		config SND_SOC_DA7210
		tristate

		config SND_SOC_DMIC
		tristate

		config SND_SOC_MAX98088
		tristate

sound/soc/codecs/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -14,6 +14,7 @@ snd-soc-cs42l51-objs := cs42l51.o
		snd-soc-cs4270-objs := cs4270.o
		snd-soc-cx20442-objs := cx20442.o
		snd-soc-da7210-objs := da7210.o
		snd-soc-dmic-objs := dmic.o
		snd-soc-l3-objs := l3.o
		snd-soc-max98088-objs := max98088.o
		snd-soc-pcm3008-objs := pcm3008.o
		@@ -91,6 +92,7 @@ obj-$(CONFIG_SND_SOC_CS42L51) += snd-soc-cs42l51.o
		obj-$(CONFIG_SND_SOC_CS4270) += snd-soc-cs4270.o
		obj-$(CONFIG_SND_SOC_CX20442) += snd-soc-cx20442.o
		obj-$(CONFIG_SND_SOC_DA7210) += snd-soc-da7210.o
		obj-$(CONFIG_SND_SOC_DMIC) += snd-soc-dmic.o
		obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o
		obj-$(CONFIG_SND_SOC_JZ4740_CODEC) += snd-soc-jz4740-codec.o
		obj-$(CONFIG_SND_SOC_MAX98088) += snd-soc-max98088.o

sound/soc/codecs/dmic.c

0 → 100644

+81 −0

Original line number	Diff line number	Diff line
		/*
		* 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 <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 struct snd_soc_codec_driver soc_dmic = {};

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

		static int __devexit 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",
		.owner = THIS_MODULE,
		},
		.probe = dmic_dev_probe,
		.remove = __devexit_p(dmic_dev_remove),
		};

		static int __init dmic_init(void)
		{
		return platform_driver_register(&dmic_driver);
		}
		module_init(dmic_init);

		static void __exit dmic_exit(void)
		{
		platform_driver_unregister(&dmic_driver);
		}
		module_exit(dmic_exit);

		MODULE_DESCRIPTION("Generic DMIC driver");
		MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
		MODULE_LICENSE("GPL");

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