Do some cleanup, adjustment and a couple fixes to recent sound changes.

* SOUND_x enum can be generated by audiohw_settings.h along with settings
entries and sound_val2phys.

* VOLUME_MIN and VOLUME_MAX are no longer necessary within sound.c. If
you need them, they are for target-defined purposes.

* Fix up SDL volume implementation in sdl.c. Move sim volume calculation
code to pcm-sdl.c.

* Min trigger tresholds were based upon VOLUME_MIN for some reason.
These setting have nothing to do with playback volume. Since it is no
longer present, set these at -89dB which is the minimum peak meter
sensitivity setting.

* Fix an oversight in wm8758.c. I forgot to add the dB->register
conversion to audiohw_set_volume.

Change-Id: Ie1df33f1793eee75e6793f16bc7bddd16edb7f75

1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/drivers/audio/wm8975.c b/firmware/drivers/audio/wm8975.c
index 4905445aea..931dae9c6f 100644
--- a/firmware/drivers/audio/wm8975.c
+++ b/firmware/drivers/audio/wm8975.c
@@ -79,7 +79,7 @@ static int vol_tenthdb2hw(int db)
     /* 0110000 == -73dB (0x30 */
     /* 0101111..0000000 == mute  (0x2f) */
 
-    if (db < VOLUME_MIN) {
+    if (db <= -740) {
         return 0x0;
     } else {
         return((db/10)+73+0x30);