1 /* 2 * ads117x.c -- Driver for ads1174/8 ADC chips 3 * 4 * Copyright 2009 ShotSpotter Inc. 5 * Author: Graeme Gregory <gg@slimlogic.co.uk> 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/kernel.h> 14 #include <linux/slab.h> 15 #include <linux/init.h> 16 #include <linux/device.h> 17 #include <linux/module.h> 18 #include <sound/core.h> 19 #include <sound/pcm.h> 20 #include <sound/initval.h> 21 #include <sound/soc.h> 22 23 #define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000) 24 #define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) 25 26 static struct snd_soc_dai_driver ads117x_dai = { 27 /* ADC */ 28 .name = "ads117x-hifi", 29 .capture = { 30 .stream_name = "Capture", 31 .channels_min = 1, 32 .channels_max = 32, 33 .rates = ADS117X_RATES, 34 .formats = ADS117X_FORMATS,}, 35 }; 36 37 static struct snd_soc_codec_driver soc_codec_dev_ads117x; 38 39 static int ads117x_probe(struct platform_device *pdev) 40 { 41 return snd_soc_register_codec(&pdev->dev, 42 &soc_codec_dev_ads117x, &ads117x_dai, 1); 43 } 44 45 static int ads117x_remove(struct platform_device *pdev) 46 { 47 snd_soc_unregister_codec(&pdev->dev); 48 return 0; 49 } 50 51 static struct platform_driver ads117x_codec_driver = { 52 .driver = { 53 .name = "ads117x-codec", 54 .owner = THIS_MODULE, 55 }, 56 57 .probe = ads117x_probe, 58 .remove = ads117x_remove, 59 }; 60 61 module_platform_driver(ads117x_codec_driver); 62 63 MODULE_DESCRIPTION("ASoC ads117x driver"); 64 MODULE_AUTHOR("Graeme Gregory"); 65 MODULE_LICENSE("GPL"); 66