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authorTakashi Iwai <tiwai@suse.de>2012-01-12 12:59:18 +0400
committerTakashi Iwai <tiwai@suse.de>2012-01-12 12:59:18 +0400
commit9e4ce164ee3a1d07580f017069c25d180b0aa785 (patch)
tree7569661eae727a5a349e4c98dba42ca681857462 /sound/core
parent627b79628f56c3deeb17dec1edf6899b49552fa4 (diff)
parentf2cbba7602383cd9cdd21f0a5d0b8bd1aad47b33 (diff)
downloadlinux-9e4ce164ee3a1d07580f017069c25d180b0aa785.tar.xz
Merge branch 'topic/hda' into for-linus
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/Kconfig3
-rw-r--r--sound/core/Makefile1
-rw-r--r--sound/core/ctljack.c56
3 files changed, 60 insertions, 0 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index 2dc7776e218c..ca6cdf6f9968 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -217,6 +217,9 @@ config SND_PCM_XRUN_DEBUG
config SND_VMASTER
bool
+config SND_KCTL_JACK
+ bool
+
config SND_DMA_SGBUF
def_bool y
depends on X86
diff --git a/sound/core/Makefile b/sound/core/Makefile
index 67c8e9336611..43d4117428ac 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -7,6 +7,7 @@ snd-y := sound.o init.o memory.o info.o control.o misc.o device.o
snd-$(CONFIG_ISA_DMA_API) += isadma.o
snd-$(CONFIG_SND_OSSEMUL) += sound_oss.o info_oss.o
snd-$(CONFIG_SND_VMASTER) += vmaster.o
+snd-$(CONFIG_SND_KCTL_JACK) += ctljack.o
snd-$(CONFIG_SND_JACK) += jack.o
snd-pcm-objs := pcm.o pcm_native.o pcm_lib.o pcm_timer.o pcm_misc.o \
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);