projects / deliverable / linux.git / blame
| 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 | ||
| 53 | static int dmic_probe(struct snd_soc_codec *codec) | |
| 54 | { | |
| 55 | struct snd_soc_dapm_context *dapm = &codec->dapm; | |
| 56 | ||
| 57 | snd_soc_dapm_new_controls(dapm, dmic_dapm_widgets, | |
| 58 | ARRAY_SIZE(dmic_dapm_widgets)); | |
| 59 | snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); | |
| 60 | snd_soc_dapm_new_widgets(dapm); | |
| 61 | ||
| 62 | return 0; | |
| 63 | } | |
| 64 | ||
| 65 | static struct snd_soc_codec_driver soc_dmic = { | |
| 66 | .probe = dmic_probe, | |
| 67 | }; | |
| a710770e DL |
68 | |
| 69 | static int __devinit dmic_dev_probe(struct platform_device *pdev) | |
| 70 | { | |
| 71 | return snd_soc_register_codec(&pdev->dev, | |
| 72 | &soc_dmic, &dmic_dai, 1); | |
| 73 | } | |
| 74 | ||
| 75 | static int __devexit dmic_dev_remove(struct platform_device *pdev) | |
| 76 | { | |
| 77 | snd_soc_unregister_codec(&pdev->dev); | |
| 78 | return 0; | |
| 79 | } | |
| 80 | ||
| 81 | MODULE_ALIAS("platform:dmic-codec"); | |
| 82 | ||
| 83 | static struct platform_driver dmic_driver = { | |
| 84 | .driver = { | |
| 85 | .name = "dmic-codec", | |
| 86 | .owner = THIS_MODULE, | |
| 87 | }, | |
| 88 | .probe = dmic_dev_probe, | |
| 89 | .remove = __devexit_p(dmic_dev_remove), | |
| 90 | }; | |
| 91 | ||
| 5bbcc3c0 | 92 | module_platform_driver(dmic_driver); |
| a710770e DL |
93 | |
| 94 | MODULE_DESCRIPTION("Generic DMIC driver"); | |
| 95 | MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>"); | |
| 96 | MODULE_LICENSE("GPL"); |