input: INI option (controller_info) to display/disable buttons map upon first press.

MiSTer.ini

@@ -87,3 +87,7 @@ vsync_adjust=0
 ; predefined modes as a base. This will reduce the range of pixel clock.
 ;video_mode_ntsc=0
 ;video_mode_pal=7
+
+; 1-10 (seconds) to display controller's button map upon first time key press
+; 0 - disable
+controller_info=6

cfg.cpp

@@ -14,6 +14,7 @@ void MiSTer_ini_parse()
 	memset(&cfg, 0, sizeof(cfg));
 	cfg.bootscreen = 1;
 	cfg.fb_terminal = 1;
+	cfg.controller_info = 6;
 	ini_parse(&ini_cfg, altcfg());
 }
 
@@ -59,6 +60,7 @@ const ini_var_t ini_vars[] = {
 	{ "OSD_ROTATE", (void*)(&(cfg.osd_rotate)), UINT8, 0, 2 },
 	{ "GAMEPAD_DEFAULTS", (void*)(&(cfg.gamepad_defaults)), UINT8, 0, 1 },
 	{ "RECENTS", (void*)(&(cfg.recents)), UINT8, 0, 1 },
+	{ "CONTROLLER_INFO", (void*)(&(cfg.controller_info)), UINT8, 0, 10 },
 };
 
 // mist ini config

cfg.h

@@ -26,6 +26,7 @@ typedef struct {
 	uint8_t hdmi_limited;
 	uint8_t direct_video;
 	uint8_t video_info;
+	uint8_t controller_info;
 	uint8_t vsync_adjust;
 	uint8_t kbd_nomouse;
 	uint8_t mouse_throttle;

joymapping.cpp

@@ -249,7 +249,10 @@ void map_joystick(uint32_t *map, uint32_t *mmap)
 		n++;
 	}
 
-	Info(mapinfo, 6000);
+	if (cfg.controller_info)
+	{
+		Info(mapinfo, cfg.controller_info*1000);
+	}
 }
 
 static const char* get_std_name(uint16_t code, uint32_t *mmap)
@@ -283,5 +286,8 @@ void map_joystick_show(uint32_t *map, uint32_t *mmap)
 		strcat(mapinfo, joy_names[i]);
 	}
 
-	Info(mapinfo, 4000);
+	if (cfg.controller_info)
+	{
+		Info(mapinfo, cfg.controller_info * 1000);
+	}
 }