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authorDimitris Papastamos <dp@opensource.wolfsonmicro.com>2010-12-16 15:53:39 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-12-17 17:36:28 +0000
commit24ff33ac696802e478714480f505c00a50a89c75 (patch)
tree3b2e9d3232331b556b2f4cb423dae1ead5565e0c /include/sound
parentASoC: sh: fsi: Add over/under run counter (diff)
downloadlinux-dev-24ff33ac696802e478714480f505c00a50a89c75.tar.xz
linux-dev-24ff33ac696802e478714480f505c00a50a89c75.zip
ASoC: soc-dapm: Introduce the new snd_soc_dapm_virt_mux type
This new type is a virtual version of snd_soc_dapm_mux. It is used when a backing register value is not necessary for deciding which input path to connect. A simple virtual enumeration control e.g. SOC_DAPM_ENUM_VIRT() can be exposed to userspace which will be used to choose which path to connect. The snd_soc_dapm_virt_mux type ensures that during the initial path setup, the first (which is also the default) input path will be connected. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/soc-dapm.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 540872fc1390..8031769ac485 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -93,6 +93,9 @@
#define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1}
+#define SND_SOC_DAPM_VIRT_MUX(wname, wreg, wshift, winvert, wcontrols) \
+{ .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
+ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1}
#define SND_SOC_DAPM_VALUE_MUX(wname, wreg, wshift, winvert, wcontrols) \
{ .id = snd_soc_dapm_value_mux, .name = wname, .reg = wreg, \
.shift = wshift, .invert = winvert, .kcontrols = wcontrols, \
@@ -148,6 +151,11 @@
{ .id = snd_soc_dapm_mux, .name = wname, .reg = wreg, .shift = wshift, \
.invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
.event = wevent, .event_flags = wflags}
+#define SND_SOC_DAPM_VIRT_MUX_E(wname, wreg, wshift, winvert, wcontrols, \
+ wevent, wflags) \
+{ .id = snd_soc_dapm_virt_mux, .name = wname, .reg = wreg, .shift = wshift, \
+ .invert = winvert, .kcontrols = wcontrols, .num_kcontrols = 1, \
+ .event = wevent, .event_flags = wflags}
/* Simplified versions of above macros, assuming wncontrols = ARRAY_SIZE(wcontrols) */
#define SOC_PGA_E_ARRAY(wname, wreg, wshift, winvert, wcontrols, \
@@ -357,6 +365,7 @@ enum snd_soc_dapm_type {
snd_soc_dapm_input = 0, /* input pin */
snd_soc_dapm_output, /* output pin */
snd_soc_dapm_mux, /* selects 1 analog signal from many inputs */
+ snd_soc_dapm_virt_mux, /* virtual version of snd_soc_dapm_mux */
snd_soc_dapm_value_mux, /* selects 1 analog signal from many inputs */
snd_soc_dapm_mixer, /* mixes several analog signals together */
snd_soc_dapm_mixer_named_ctl, /* mixer with named controls */