diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 07:47:46 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 07:47:46 -0800 |
commit | a421018e8c10e5593a1fee076af72a66c3fe8ca3 (patch) | |
tree | 2854511845d0e07d33726a13eda6de1059a5c9df /sound/soc/codecs/ads117x.c | |
parent | 3ad1f3b35e8309ec93454dbf89beaafcdb5312da (diff) | |
parent | 86e1d57e4f24ca27ce813bdc2afaac4adafcbaf4 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (294 commits)
S3C64XX: Staticise platform data for PCM devices
ASoC: Rename controls with a / in wm_hubs
snd-fm801: autodetect SF64-PCR (tuner-only) card
ALSA: tea575x-tuner: fix mute
ASoC: au1x: dbdma2: plug memleak in pcm device creation error path
ASoC: au1x: dbdma2: fix oops on soc device removal.
ALSA: hda - Fix memory leaks in the previous patch
ALSA: hda - Add ALC661/259, ALC892/888VD support
ALSA: opti9xx: remove snd_opti9xx fields
ALSA: aaci - Clean up duplicate code
ALSA: usb - Fix mixer map for Hercules Gamesurround Muse Pocket LT
ALSA: hda - Add position_fix quirk for HP dv3
ALSA: hda - Add a pin-fix for FSC Amilo Pi1505
ALSA: hda - Fix Cxt5047 test mode
ASoC: pxa/raumfeld: adopt new snd_soc_dai_set_pll() API
ASoC: sh: fsi: Add runtime PM support
sh: ms7724se: Add runtime PM support for FSI
ALSA: hda - Add a position_fix quirk for MSI Wind U115
ALSA: opti-miro: add PnP detection
ALSA: opti-miro: separate comon probing code
...
Diffstat (limited to 'sound/soc/codecs/ads117x.c')
-rw-r--r-- | sound/soc/codecs/ads117x.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/sound/soc/codecs/ads117x.c b/sound/soc/codecs/ads117x.c new file mode 100644 index 00000000000..cc96411ca3e --- /dev/null +++ b/sound/soc/codecs/ads117x.c @@ -0,0 +1,123 @@ +/* + * ads117x.c -- Driver for ads1174/8 ADC chips + * + * Copyright 2009 ShotSpotter Inc. + * Author: Graeme Gregory <gg@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 as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/device.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/initval.h> +#include <sound/soc.h> + +#include "ads117x.h" + +#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000) + +#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE) + +struct snd_soc_dai ads117x_dai = { +/* ADC */ + .name = "ADS117X ADC", + .id = 1, + .capture = { + .stream_name = "Capture", + .channels_min = 1, + .channels_max = 32, + .rates = ADS117X_RATES, + .formats = ADS117X_FORMATS,}, +}; +EXPORT_SYMBOL_GPL(ads117x_dai); + +static int ads117x_probe(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec; + int ret; + + codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); + if (codec == NULL) + return -ENOMEM; + + socdev->card->codec = codec; + mutex_init(&codec->mutex); + INIT_LIST_HEAD(&codec->dapm_widgets); + INIT_LIST_HEAD(&codec->dapm_paths); + codec->name = "ADS117X"; + codec->owner = THIS_MODULE; + codec->dai = &ads117x_dai; + codec->num_dai = 1; + + /* register pcms */ + ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); + if (ret < 0) { + printk(KERN_ERR "ads117x: failed to create pcms\n"); + kfree(codec); + return ret; + } + + return 0; +} + +static int ads117x_remove(struct platform_device *pdev) +{ + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_codec *codec = socdev->card->codec; + + snd_soc_free_pcms(socdev); + kfree(codec); + + return 0; +} + +struct snd_soc_codec_device soc_codec_dev_ads117x = { + .probe = ads117x_probe, + .remove = ads117x_remove, +}; +EXPORT_SYMBOL_GPL(soc_codec_dev_ads117x); + +static __devinit int ads117x_platform_probe(struct platform_device *pdev) +{ + ads117x_dai.dev = &pdev->dev; + return snd_soc_register_dai(&ads117x_dai); +} + +static int __devexit ads117x_platform_remove(struct platform_device *pdev) +{ + snd_soc_unregister_dai(&ads117x_dai); + return 0; +} + +static struct platform_driver ads117x_codec_driver = { + .driver = { + .name = "ads117x", + .owner = THIS_MODULE, + }, + + .probe = ads117x_platform_probe, + .remove = __devexit_p(ads117x_platform_remove), +}; + +static int __init ads117x_init(void) +{ + return platform_driver_register(&ads117x_codec_driver); +} +module_init(ads117x_init); + +static void __exit ads117x_exit(void) +{ + platform_driver_unregister(&ads117x_codec_driver); +} +module_exit(ads117x_exit); + +MODULE_DESCRIPTION("ASoC ads117x driver"); +MODULE_AUTHOR("Graeme Gregory"); +MODULE_LICENSE("GPL"); |