summaryrefslogtreecommitdiffstats
path: root/include/sound/soc.h
diff options
context:
space:
mode:
authorPeter Ujfalusi <peter.ujfalusi@ti.com>2011-10-05 10:29:22 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-05 17:10:09 +0100
commit30d86ba47f79d566fffe9ba577caf247d06a3796 (patch)
tree07dbc0f940832ca806f81f8adbb91b0e80273dab /include/sound/soc.h
parent08a1ed76f5cf94bef07cb370b079760553a87b4b (diff)
downloadop-kernel-dev-30d86ba47f79d566fffe9ba577caf247d06a3796.zip
op-kernel-dev-30d86ba47f79d566fffe9ba577caf247d06a3796.tar.gz
ASoC: core: Change SOC_SINGLE/DOUBLE_VALUE representation
SOC_SINGLE/DOUBLE_VALUE is used for mixer controls, where the bits are within one register. Assign .rreg to be the same as .reg for these types. With this change we can tell if the mixer in question: is mono: mc->reg == mc->rreg && mc->shift == mc->rshift is stereo, within single register: mc->reg == mc->rreg && mc->shift != mc->rshift is stereo, in two registers: mc->reg != mc->rreg The patch provide a small inline function to query, if the mixer is stereo, or mono. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound/soc.h')
-rw-r--r--include/sound/soc.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 8ab1cfe..88ff2d8 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -30,8 +30,9 @@
*/
#define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert) \
((unsigned long)&(struct soc_mixer_control) \
- {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
- .max = xmax, .platform_max = xmax, .invert = xinvert})
+ {.reg = xreg, .rreg = xreg, .shift = shift_left, \
+ .rshift = shift_right, .max = xmax, .platform_max = xmax, \
+ .invert = xinvert})
#define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert)
#define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
@@ -947,6 +948,18 @@ static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
INIT_LIST_HEAD(&card->dapm_list);
}
+static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
+{
+ if (mc->reg == mc->rreg && mc->shift == mc->rshift)
+ return 0;
+ /*
+ * mc->reg == mc->rreg && mc->shift != mc->rshift, or
+ * mc->reg != mc->rreg means that the control is
+ * stereo (bits in one register or in two registers)
+ */
+ return 1;
+}
+
int snd_soc_util_init(void);
void snd_soc_util_exit(void);
OpenPOWER on IntegriCloud