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 const struct snd_soc_codec_driver soc_codec_dev_ad73311 = { 58 .component_driver = { 59 .dapm_widgets = ad73311_dapm_widgets, 60 .num_dapm_widgets = ARRAY_SIZE(ad73311_dapm_widgets), 61 .dapm_routes = ad73311_dapm_routes, 62 .num_dapm_routes = ARRAY_SIZE(ad73311_dapm_routes), 63 }, 64 }; 65 66 static int ad73311_probe(struct platform_device *pdev) 67 { 68 return snd_soc_register_codec(&pdev->dev, 69 &soc_codec_dev_ad73311, &ad73311_dai, 1); 70 } 71 72 static int ad73311_remove(struct platform_device *pdev) 73 { 74 snd_soc_unregister_codec(&pdev->dev); 75 return 0; 76 } 77 78 static struct platform_driver ad73311_codec_driver = { 79 .driver = { 80 .name = "ad73311", 81 }, 82 83 .probe = ad73311_probe, 84 .remove = ad73311_remove, 85 }; 86 87 module_platform_driver(ad73311_codec_driver); 88 89 MODULE_DESCRIPTION("ASoC ad73311 driver"); 90 MODULE_AUTHOR("Cliff Cai "); 91 MODULE_LICENSE("GPL"); 92