/* * 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"); |