Straighten out the mad twisted state of sound.c and related areas.

This is going right in since it's long overdue. If anything is goofed,
drop me a line or just tweak it yourself if you know what's wrong. :-)

Make HW/SW codec interface more uniform when emulating HW functionality
on SWCODEC for functions such as "audiohw_set_pitch". The firmware-to-
DSP plumbing is in firmware/drivers/audiohw-swcodec.c. "sound_XXX"
APIs are all in sound.c with none in DSP code any longer.

Reduce number of settings definitions needed by each codec by providing
defaults for common ones like balance, channels and SW tone controls.

Remove need for separate SIM code and tables and add virtual codec header
for hosted targets.

Change-Id: I3f23702bca054fc9bda40f49824ce681bb7f777b

1 files changed, 1 insertions, 3 deletions

diff --git a/firmware/export/ak4537.h b/firmware/export/ak4537.h
index 1f272d41fc..abf2a378ae 100644
--- a/firmware/export/ak4537.h
+++ b/firmware/export/ak4537.h
@@ -26,9 +26,7 @@
 #define VOLUME_MIN -1270
 #define VOLUME_MAX     0
 
-extern int tenthdb2master(int db);
-
-extern void audiohw_set_master_vol(int vol_l, int vol_r);
+AUDIOHW_SETTING(VOLUME, "dB",  0,  1, -128,   0, -25)
 
 #define AKC_NUM_REGS        0x11