1 /* 2 * ad73311.c -- ALSA Soc AD73311 codec support 3 * 4 * Copyright: Analog Device Inc. 5 * Author: Cliff Cai <cliff.cai@analog.com> 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 */ 12 13 #include <linux/init.h> 14 #include <linux/slab.h> 15 #include <linux/module.h> 16 #include <linux/kernel.h> 17 #include <linux/device.h> 18 #include <sound/core.h> 19 #include <sound/pcm.h> 20 #include <sound/ac97_codec.h> 21 #include <sound/initval.h> 22 #include <sound/soc.h> 23 24 #include "ad73311.h" 25 26 static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = { 27 SND_SOC_DAPM_INPUT("VINP"), 28 SND_SOC_DAPM_INPUT("VINN"), 29 SND_SOC_DAPM_OUTPUT("VOUTN"), 30 SND_SOC_DAPM_OUTPUT("VOUTP"), 31 }; 32 33 static const struct snd_soc_dapm_route ad73311_dapm_routes[] = { 34 { "Capture", NULL, "VINP" }, 35 { "Capture", NULL, "VINN" }, 36 37 { "VOUTN", NULL, "Playback" }, 38 { "VOUTP", NULL, "Playback" }, 39 }; 40 41 static struct snd_soc_dai_driver ad73311_dai = { 42 .name = "ad73311-hifi", 43 .playback = { 44 .stream_name = "Playback", 45 .channels_min = 1, 46 .channels_max = 1, 47 .rates = SNDRV_PCM_RATE_8000, 48 .formats = SNDRV_PCM_FMTBIT_S16_LE, }, 49 .capture = { 50 .stream_name = "Capture", 51 .channels_min = 1, 52 .channels_max = 1, 53 .rates = SNDRV_PCM_RATE_8000, 54 .formats = SNDRV_PCM_FMTBIT_S16_LE, }, 55 }; 56 57 static struct snd_soc_codec_driver soc_codec_dev_ad73311 = { 58 .dapm_widgets = ad73311_dapm_widgets, 59 .num_dapm_widgets = ARRAY_SIZE(ad73311_dapm_widgets), 60 .dapm_routes = ad73311_dapm_routes, 61 .num_dapm_routes = ARRAY_SIZE(ad73311_dapm_routes), 62 }; 63 64 static int ad73311_probe(struct platform_device *pdev) 65 { 66 return snd_soc_register_codec(&pdev->dev, 67 &soc_codec_dev_ad73311, &ad73311_dai, 1); 68 } 69 70 static int ad73311_remove(struct platform_device *pdev) 71 { 72 snd_soc_unregister_codec(&pdev->dev); 73 return 0; 74 } 75 76 static struct platform_driver ad73311_codec_driver = { 77 .driver = { 78 .name = "ad73311", 79 }, 80 81 .probe = ad73311_probe, 82 .remove = ad73311_remove, 83 }; 84 85 module_platform_driver(ad73311_codec_driver); 86 87 MODULE_DESCRIPTION("ASoC ad73311 driver"); 88 MODULE_AUTHOR("Cliff Cai "); 89 MODULE_LICENSE("GPL"); 90