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, 6 insertions, 24 deletions

diff --git a/firmware/drivers/audio/cs42l55.c b/firmware/drivers/audio/cs42l55.c
index 38380d5a54..75fcd80b77 100644
--- a/firmware/drivers/audio/cs42l55.c
+++ b/firmware/drivers/audio/cs42l55.c
@@ -29,27 +29,15 @@
 #include "cscodec.h"
 #include "cs42l55.h"
 
-const struct sound_settings_info audiohw_settings[] = {
-    [SOUND_VOLUME]        = {"dB", 0,  1, -60,  12, -25},
-    [SOUND_BASS]          = {"dB", 1, 15,-105, 120,   0},
-    [SOUND_TREBLE]        = {"dB", 1, 15,-105, 120,   0},
-    [SOUND_BALANCE]       = {"%",  0,  1,-100, 100,   0},
-    [SOUND_CHANNELS]      = {"",   0,  1,   0,   5,   0},
-    [SOUND_STEREO_WIDTH]  = {"%",  0,  5,   0, 250, 100},
-    [SOUND_BASS_CUTOFF]   = {"",   0,  1,   1,   4,   2},
-    [SOUND_TREBLE_CUTOFF] = {"",   0,  1,   1,   4,   1},
-};
-
 static int bass, treble;
 
-/* convert tenth of dB volume (-600..120) to master volume register value */
-int tenthdb2master(int db)
+/* convert tenth of dB volume (-600..120) to volume register value */
+static int vol_tenthdb2hw(int db)
 {
     /* -60dB to +12dB in 1dB steps */
     /* 0001100 == +12dB (0xc) */
     /* 0000000 == 0dB   (0x0) */
     /* 1000100 == -60dB (0x44, this is actually -58dB) */
-
     if (db < VOLUME_MIN) return HPACTL_HPAMUTE;
     return (db / 10) & HPACTL_HPAVOL_MASK;
 }
@@ -125,11 +113,8 @@ void audiohw_postinit(void)
 
 void audiohw_set_master_vol(int vol_l, int vol_r)
 {
-    /* -60dB to +12dB in 1dB steps */
-    /* 0001100 == +12dB (0xc) */
-    /* 0000000 == 0dB   (0x0) */
-    /* 1000100 == -60dB (0x44, this is actually -58dB) */
-
+    vol_l = vol_tenthdb2hw(vol_l);
+    vol_r = vol_tenthdb2hw(vol_r);
     cscodec_setbits(HPACTL, HPACTL_HPAVOL_MASK | HPACTL_HPAMUTE,
                     vol_l << HPACTL_HPAVOL_SHIFT);
     cscodec_setbits(HPBCTL, HPBCTL_HPBVOL_MASK | HPBCTL_HPBMUTE,
@@ -138,11 +123,8 @@ void audiohw_set_master_vol(int vol_l, int vol_r)
 
 void audiohw_set_lineout_vol(int vol_l, int vol_r)
 {
-    /* -60dB to +12dB in 1dB steps */
-    /* 0001100 == +12dB (0xc) */
-    /* 0000000 == 0dB   (0x0) */
-    /* 1000100 == -60dB (0x44, this is actually -58dB) */
-
+    vol_l = vol_tenthdb2hw(vol_l);
+    vol_r = vol_tenthdb2hw(vol_r);
     cscodec_setbits(LINEACTL, LINEACTL_LINEAVOL_MASK | LINEACTL_LINEAMUTE,
                     vol_l << LINEACTL_LINEAVOL_SHIFT);
     cscodec_setbits(LINEBCTL, LINEBCTL_LINEBVOL_MASK | LINEBCTL_LINEBMUTE,