X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=betty%2Fdisplay.c;h=1d6af1a0eb2ae2785a9af75d7e1bbfed9f990a4c;hb=00632c1df2040d4ee30ff8a9420489f7adfe9963;hp=210cd17766cb92358a9736f7228ac29f0f166492;hpb=94909b5b893d5c60bc44bbafec8de1b3c86d9595;p=my-code%2Farm.git

diff --git a/betty/display.c b/betty/display.c
index 210cd17..1d6af1a 100644
--- a/betty/display.c
+++ b/betty/display.c
@@ -11,9 +11,46 @@
  * functions
  */
 
+void display_clear_screen(void) {
+
+	u32 cnt;
+
+	DISPLAY_SET_PAGE_ADDR(0);
+	DISPLAY_SET_C_ADDR(0);
+
+	for(cnt=0;cnt<DISPLAY_RAM_CONTENT;cnt++)
+		DISPLAY_DATA=0x00;
+}
+
 void display_init(void) {
 
+	/* configure the ext mem bank interface */
 	BCFG1=0x00000c42;
+
+	DISPLAY_EXIT_POWER_SAVE;
+
+	/* reset the display, wait until its up again */
+	DISPLAY_SOFT_RESET;
+	pause(0xffffff);
+
+	DISPLAY_START_OSCILLATOR;
+
+	DISPLAY_SET_POWER(DISPLAY_V_BOOST|DISPLAY_REGULATOR);
+
+	display_clear_screen();
+
+	DISPLAY_SET_ON;
+}
+
+void display_load_logo(u8 *src) {
+
+	u32 cnt;
+
+	DISPLAY_SET_PAGE_ADDR(0);
+	DISPLAY_SET_C_ADDR(0);
+
+	for(cnt=0;cnt<DISPLAY_RAM_CONTENT;cnt++)
+		DISPLAY_DATA=src[cnt];
 }
 
 void display_bl_init(void) {