From 7ae9aa6f6f43237954d1b66e4acce7c307fa1f0c Mon Sep 17 00:00:00 2001
From: sorgelig <pour.garbage@gmail.com>
Date: Fri, 7 Jul 2017 03:28:50 +0800
Subject: [PATCH] HDMI Audio 48khz option.

---
 MiSTer.ini | 11 ++++++-----
 mist_cfg.c |  1 +
 mist_cfg.h |  1 +
 user_io.c  |  1 +
 user_io.h  |  1 +
 5 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/MiSTer.ini b/MiSTer.ini
index 425898e..cce77ca 100644
--- a/MiSTer.ini
+++ b/MiSTer.ini
@@ -1,6 +1,7 @@
 [MiSTer]
-key_menu_as_rgui=0            ; set to 1 to make the MENU key map to RGUI in Minimig (e.g. for Right Amiga)
-forced_scandoubler=0          ; set to 1 to run scandoubler on VGA output always (depends on core).
-ypbpr=0                       ; set to 1 for YPbPr on VGA output.
-composite_sync=0              ; set to 1 for composite sync on HSync signal of VGA output.
-vga_scaler=1                  ; set to 1 to connect VGA to scaler output.
+key_menu_as_rgui=0     ; set to 1 to make the MENU key map to RGUI in Minimig (e.g. for Right Amiga)
+forced_scandoubler=0   ; set to 1 to run scandoubler on VGA output always (depends on core).
+ypbpr=0                ; set to 1 for YPbPr on VGA output.
+composite_sync=0       ; set to 1 for composite sync on HSync signal of VGA output.
+vga_scaler=0           ; set to 1 to connect VGA to scaler output.
+audio_48k=0            ; set to 1 for 48khz/16bit HDMI audio (96khz/16bit otherwise)
diff --git a/mist_cfg.c b/mist_cfg.c
index 08e28da..137a113 100644
--- a/mist_cfg.c
+++ b/mist_cfg.c
@@ -32,6 +32,7 @@ const ini_var_t mist_ini_vars[] = {
 	{ "KEY_MENU_AS_RGUI", (void*)(&(mist_cfg.key_menu_as_rgui)), UINT8, 0, 1, 1 },
 	{ "KEY_REMAP", (void*)user_io_key_remap, CUSTOM_HANDLER, 0, 0, 1 },
 	{ "VIDEO_MODE", (void*)(&(mist_cfg.video_mode)), UINT8, 0, 9, 1 },
+	{ "AUDIO_48K", (void*)(&(mist_cfg.audio_48k)), UINT8, 0, 1, 1 },
 };
 
 // mist ini config
diff --git a/mist_cfg.h b/mist_cfg.h
index 8958efa..2134076 100644
--- a/mist_cfg.h
+++ b/mist_cfg.h
@@ -21,6 +21,7 @@ typedef struct {
 	uint8_t csync;
 	uint8_t vga_scaler;
 	uint8_t video_mode;
+	uint8_t audio_48k;
 } mist_cfg_t;
 
 
diff --git a/user_io.c b/user_io.c
index 256cf8d..8106353 100644
--- a/user_io.c
+++ b/user_io.c
@@ -761,6 +761,7 @@ void user_io_send_buttons(char force)
 	if (mist_cfg.csync) map |= CONF_CSYNC;
 	if (mist_cfg.ypbpr) map |= CONF_YPBPR;
 	if (mist_cfg.forced_scandoubler) map |= CONF_FORCED_SCANDOUBLER;
+	if (mist_cfg.audio_48k) map |= CONF_AUDIO_48K;
 
 	if ((map != key_map) || force)
 	{
diff --git a/user_io.h b/user_io.h
index f575181..923c0e4 100644
--- a/user_io.h
+++ b/user_io.h
@@ -108,6 +108,7 @@
 #define CONF_CSYNC              0x08
 #define CONF_FORCED_SCANDOUBLER 0x10
 #define CONF_YPBPR              0x20
+#define CONF_AUDIO_48K          0x40
 
 // core type value should be unlikely to be returned by broken cores
 #define CORE_TYPE_UNKNOWN   0x55