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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-12 08:00:30 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-12 08:00:30 -0800 |
commit | a429638cac1e5c656818a45aaff78df7b743004e (patch) | |
tree | 0465e0d7a431bff97a3dd5a1f91d9b30c69ae0d8 /sound/core/ctljack.c | |
parent | 5cf9a4e69c1ff0ccdd1d2b7404f95c0531355274 (diff) | |
parent | 9e4ce164ee3a1d07580f017069c25d180b0aa785 (diff) | |
download | linux-a429638cac1e5c656818a45aaff78df7b743004e.tar.bz2 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (526 commits)
ASoC: twl6040 - Add method to query optimum PDM_DL1 gain
ALSA: hda - Fix the lost power-setup of seconary pins after PM resume
ALSA: usb-audio: add Yamaha MOX6/MOX8 support
ALSA: virtuoso: add S/PDIF input support for all Xonars
ALSA: ice1724 - Support for ooAoo SQ210a
ALSA: ice1724 - Allow card info based on model only
ALSA: ice1724 - Create capture pcm only for ADC-enabled configurations
ALSA: hdspm - Provide unique driver id based on card serial
ASoC: Dynamically allocate the rtd device for a non-empty release()
ASoC: Fix recursive dependency due to select ATMEL_SSC in SND_ATMEL_SOC_SSC
ALSA: hda - Fix the detection of "Loopback Mixing" control for VIA codecs
ALSA: hda - Return the error from get_wcaps_type() for invalid NIDs
ALSA: hda - Use auto-parser for HP laptops with cx20459 codec
ALSA: asihpi - Fix potential Oops in snd_asihpi_cmode_info()
ALSA: hdsp - Fix potential Oops in snd_hdsp_info_pref_sync_ref()
ALSA: hda/cirrus - support for iMac12,2 model
ASoC: cx20442: add bias control over a platform provided regulator
ALSA: usb-audio - Avoid flood of frame-active debug messages
ALSA: snd-usb-us122l: Delete calls to preempt_disable
mfd: Put WM8994 into cache only mode when suspending
...
Fix up trivial conflicts in:
- arch/arm/mach-s3c64xx/mach-crag6410.c:
renamed speyside_wm8962 to tobermory, added littlemill right
next to it
- drivers/base/regmap/{regcache.c,regmap.c}:
duplicate diff that had already come in with other changes in
the regmap tree
Diffstat (limited to 'sound/core/ctljack.c')
-rw-r--r-- | sound/core/ctljack.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sound/core/ctljack.c b/sound/core/ctljack.c new file mode 100644 index 000000000000..e4b38fbe51da --- /dev/null +++ b/sound/core/ctljack.c @@ -0,0 +1,56 @@ +/* + * Helper functions for jack-detection kcontrols + * + * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de> + * + * 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/export.h> +#include <sound/core.h> +#include <sound/control.h> + +#define jack_detect_kctl_info snd_ctl_boolean_mono_info + +static int jack_detect_kctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = kcontrol->private_value; + return 0; +} + +static struct snd_kcontrol_new jack_detect_kctl = { + /* name is filled later */ + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = jack_detect_kctl_info, + .get = jack_detect_kctl_get, +}; + +struct snd_kcontrol * +snd_kctl_jack_new(const char *name, int idx, void *private_data) +{ + struct snd_kcontrol *kctl; + kctl = snd_ctl_new1(&jack_detect_kctl, private_data); + if (!kctl) + return NULL; + snprintf(kctl->id.name, sizeof(kctl->id.name), "%s Jack", name); + kctl->id.index = idx; + kctl->private_value = 0; + return kctl; +} +EXPORT_SYMBOL_GPL(snd_kctl_jack_new); + +void snd_kctl_jack_report(struct snd_card *card, + struct snd_kcontrol *kctl, bool status) +{ + if (kctl->private_value == status) + return; + kctl->private_value = status; + snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id); +} +EXPORT_SYMBOL_GPL(snd_kctl_jack_report); |