From 05e8488ad8f3ff849ab63f2273e44132c64fbfcd Mon Sep 17 00:00:00 2001
From: Christian Gmeiner <christian.gmeiner@gmail.com>
Date: Wed, 14 May 2008 21:35:19 +0000
Subject: Introduce PRESCALER_CAP and move some driver specific code to the
 correct place.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17516 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/audio/mas35xx.c |  7 +++++++
 firmware/drivers/audio/uda1380.c |  5 +++++
 firmware/export/audiohw.h        | 15 +++++++++++++++
 firmware/export/mas35xx.h        |  2 +-
 firmware/export/uda1380.h        |  2 +-
 firmware/sound.c                 |  8 +++-----
 6 files changed, 32 insertions(+), 7 deletions(-)

diff --git a/firmware/drivers/audio/mas35xx.c b/firmware/drivers/audio/mas35xx.c
index 403ce07068..1a0d2afe45 100644
--- a/firmware/drivers/audio/mas35xx.c
+++ b/firmware/drivers/audio/mas35xx.c
@@ -161,6 +161,13 @@ void audiohw_set_bass(int val)
 #endif
 }
 
+#if CONFIG_CODEC == MAS3507D
+void audiohw_set_prescaler(int val)
+{
+    mas_writereg(MAS_REG_KPRESCALE, prescale_table[val/10]);
+}
+#endif
+
 void audiohw_set_treble(int val)
 {
 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
diff --git a/firmware/drivers/audio/uda1380.c b/firmware/drivers/audio/uda1380.c
index f6a7c730cb..388e59b1d2 100644
--- a/firmware/drivers/audio/uda1380.c
+++ b/firmware/drivers/audio/uda1380.c
@@ -282,6 +282,11 @@ void audiohw_postinit(void)
     audiohw_mute(false);
 }
 
+void audiohw_set_prescaler(int val)
+{
+    audiohw_set_mixer_vol(tenthdb2mixer(-val), tenthdb2mixer(-val));
+}
+
 /* Nice shutdown of UDA1380 codec */
 void audiohw_close(void)
 {
diff --git a/firmware/export/audiohw.h b/firmware/export/audiohw.h
index d11a3b5181..4c9271e03e 100644
--- a/firmware/export/audiohw.h
+++ b/firmware/export/audiohw.h
@@ -28,6 +28,7 @@
 #define BASS_CAP        (1 << 1)
 #define BALANCE_CAP     (1 << 2)
 #define CLIPPING_CAP    (1 << 3)
+#define PRESCALER_CAP   (1 << 4)
 
 #ifdef HAVE_UDA1380
 #include "uda1380.h"
@@ -72,6 +73,10 @@
 #if (AUDIOHW_CAPS & CLIPPING_CAP)
 #define AUDIOHW_HAVE_CLIPPING
 #endif
+
+#if (AUDIOHW_CAPS & PRESCALER_CAP)
+#define AUDIOHW_HAVE_PRESCALER
+#endif
 #endif /* AUDIOHW_CAPS */
 
 enum {
@@ -164,6 +169,16 @@ void audiohw_close(void);
 void audiohw_set_volume(int val);
 #endif
 
+#ifdef AUDIOHW_HAVE_PRESCALER
+/**
+ * Set new prescaler value.
+ * @param val to set.
+ * NOTE: AUDIOHW_CAPS need to contain
+ *          PRESCALER_CAP
+ */
+void audiohw_set_prescaler(int val);
+#endif
+
 #ifdef AUDIOHW_HAVE_BALANCE
 /**
  * Set new balance value
diff --git a/firmware/export/mas35xx.h b/firmware/export/mas35xx.h
index d28db0fb33..a0da03d0a4 100644
--- a/firmware/export/mas35xx.h
+++ b/firmware/export/mas35xx.h
@@ -28,7 +28,7 @@
 
 #define VOLUME_MIN -780
 #define VOLUME_MAX  180
-#define AUDIOHW_CAPS (BASS_CAP | TREBLE_CAP)
+#define AUDIOHW_CAPS (BASS_CAP | TREBLE_CAP | PRESCALER_CAP)
 
 #else /* CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F */
 
diff --git a/firmware/export/uda1380.h b/firmware/export/uda1380.h
index c23f95265b..e0125d8d63 100644
--- a/firmware/export/uda1380.h
+++ b/firmware/export/uda1380.h
@@ -24,7 +24,7 @@
 #define VOLUME_MIN -840
 #define VOLUME_MAX  0
 
-#define AUDIOHW_CAPS (BASS_CAP | TREBLE_CAP)
+#define AUDIOHW_CAPS (BASS_CAP | TREBLE_CAP | PRESCALER_CAP)
 
 extern int tenthdb2master(int db);
 extern int tenthdb2mixer(int db);
diff --git a/firmware/sound.c b/firmware/sound.c
index 8282decbbe..5c6a821d48 100644
--- a/firmware/sound.c
+++ b/firmware/sound.c
@@ -264,12 +264,10 @@ static void set_prescaled_volume(void)
         prescale = VOLUME_MAX - current_volume;
 #endif
 
-#if defined(HAVE_SW_TONE_CONTROLS)
+#if defined(AUDIOHW_HAVE_PRESCALER)
+    audiohw_set_prescaler(prescale);
+#else
     dsp_callback(DSP_CALLBACK_SET_PRESCALE, prescale);
-#elif CONFIG_CODEC == MAS3507D
-    mas_writereg(MAS_REG_KPRESCALE, prescale_table[prescale/10]);
-#elif defined(HAVE_UDA1380)
-    audiohw_set_mixer_vol(tenthdb2mixer(-prescale), tenthdb2mixer(-prescale));
 #endif
 
     if (current_volume == VOLUME_MIN)
-- 
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