Extend the audio HAL interface to support get/set master mute
(cherry picked from commit d245968b7ef0be5c776c9aefff3eca9e293d1b35)
> Extend the audio HAL interface to support get/set master mute
>
> Hand merge from ics-aah
>
> > Extend the audio HAL interface to support get/set master mute: DO NOT MERGE
> >
> > Extend the audio HAL interface to allow HALs to optionally support HW
> > level master mute. This follows the same pattern as master volume and
> > is part of the fix for bug 6828363. Because of the divergences
> > between ICS and master, this change will need to be merged by hand.
> >
> > Signed-off-by: John Grossman <johngro@google.com>
> > Change-Id: Ica6f5e37e13d13dde60463966f41f271ffa104fd
>
> Change-Id: I5e7aea6d7da0012dcc077281f9077fc04cfb9889
> Signed-off-by: John Grossman <johngro@google.com>
Change-Id: I2011cc5bc41ca7081ce255a4bfba65f36f899bc4
Signed-off-by: John Grossman <johngro@google.com>
diff --git a/include/hardware/audio.h b/include/hardware/audio.h
index 0a917e2..26e9ea9 100644
--- a/include/hardware/audio.h
+++ b/include/hardware/audio.h
@@ -352,7 +352,7 @@
* master volume control. AudioFlinger will query this value from the
* primary audio HAL when the service starts and use the value for setting
* the initial master volume across all HALs. HALs which do not support
- * this method should may leave it set to NULL.
+ * this method may leave it set to NULL.
*/
int (*get_master_volume)(struct audio_hw_device *dev, float *volume);
@@ -407,6 +407,21 @@
/** This method dumps the state of the audio hardware */
int (*dump)(const struct audio_hw_device *dev, int fd);
+
+ /**
+ * set the audio mute status for all audio activities. If any value other
+ * than 0 is returned, the software mixer will emulate this capability.
+ */
+ int (*set_master_mute)(struct audio_hw_device *dev, bool mute);
+
+ /**
+ * Get the current master mute status for the HAL, if the HAL supports
+ * master mute control. AudioFlinger will query this value from the primary
+ * audio HAL when the service starts and use the value for setting the
+ * initial master mute across all HALs. HALs which do not support this
+ * method may leave it set to NULL.
+ */
+ int (*get_master_mute)(struct audio_hw_device *dev, bool *mute);
};
typedef struct audio_hw_device audio_hw_device_t;