From 2c6f5744c29fb65d904aa5fe40b5ce541247f900 Mon Sep 17 00:00:00 2001
From: hackbard <hackbard@staubsauger.localdomain>
Date: Wed, 12 Sep 2007 00:19:15 +0200
Subject: [PATCH] some display testing (doesn't work by now!)

---
 betty/betty.c   | 20 +++++++-----
 betty/display.c | 35 +++++++++++++++++++++
 betty/display.h | 81 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 128 insertions(+), 8 deletions(-)

diff --git a/betty/betty.c b/betty/betty.c
index 859860a..200bd6f 100644
--- a/betty/betty.c
+++ b/betty/betty.c
@@ -47,15 +47,20 @@ int main() {
 	/* pause - seems to not work if running from flash! (?) */
 	pause(0xffffff);
 
+	/* display init */
+	display_init();
+
+	/* pasue again */
+
 	/* announce */
 	uart0_send_string(announce);
 
-	/* toggle backlight */
-	display_bl_toggle();
-
 	//addr=0x82000000;
-	flash_sector_erase(BANK2,0);
-	addr=FLASH_BANK2;
+	//flash_sector_erase(BANK2,0);
+	//addr=FLASH_BANK2;
+	
+	DISPLAY_SET_C_ADDR(0);
+	DISPLAY_SET_PAGE_ADDR(0);
 
 	while(1) {
 		pause(0x0fffff);
@@ -64,9 +69,8 @@ int main() {
 		if(button_get_event(&button)) {
 			uart0_send_string(announce);
 			if(button.key[0]==BUTTON_POWER) {
-				display_bl_toggle();
-				flash_write_buf(addr,(u16 *)announce,42);
-				addr+=64;
+				DISPLAY_DATA=0xff;
+				DISPLAY_DATA=0xff;
 			}
 		}
 	}
diff --git a/betty/display.c b/betty/display.c
index 210cd17..fad0804 100644
--- a/betty/display.c
+++ b/betty/display.c
@@ -11,9 +11,44 @@
  * 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_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) {
diff --git a/betty/display.h b/betty/display.h
index afaa399..b458887 100644
--- a/betty/display.h
+++ b/betty/display.h
@@ -11,6 +11,87 @@
 #include "lpc2xxx.h"
 #include "types.h"
 
+/* defines */
+#define DISPLY_BANK1			0x81000000
+
+#define DISPLAY_CMD			(*((volatile u8 *)DISPLY_BANK1))
+#define DISPLAY_DATA			(*((volatile u8 *)DISPLY_BANK1+1))
+
+#define DISPLAY_DIMX			128
+#define DISPLAY_DIMY			160
+#define DISPLAY_PAGE_MAX		(DISPLAY_DIMY/8)
+#define DISPLAY_COL_MAX			DISPLAY_DIMX
+#define DISPLAY_RAM_CONTENT		(DISPLAY_PAGE_MAX*DISPLAY_COL_MAX*2)
+
+#define DISPLAY_SET_C_ADDR(c)		DISPLAY_CMD=(0x00|((c)&0x0f)); \
+					DISPLAY_CMD=(0x10|(((c)&0x70)>>4))
+#define DISPLAY_SET_MASTER		DISPLAY_CMD=0x18
+#define DISPLAY_SET_SLAVE		DISPLAY_CMD=0x19
+#define DISPLAY_SET_REGULATOR(r)	DISPLAY_CMD=(0x20|((r)&0x07))
+#define DISPLAY_SET_POWER(p)		DISPLAY_CMD=(0x28|((p)&0x07))
+#define DISPLAY_V_BOOST			0x01
+#define DISPLAY_REGULATOR		0x02
+#define DISPLAY_OPAMP			0x04
+#define DISPLAY_SET_START_LINE(s)	DISPLAY_CMD=0x40; \
+					DISPLAY_CMD=(s)
+#define DISPLAY_SET_OFFSET(o)		DISPLAY_CMD=0x44; \
+					DISPLAY_CMD=(o)
+#define DISPLAY_SET_MPLEX_RATIO(m)	DISPLAY_CMD=0x48; \
+					DISPLAY_CMD=(m)
+#define DISPLAY_SET_NINV(n)		DISPLAY_CMD=0x4c; \
+					DISPLAY_CMD=(n)
+#define DISPLAY_SET_BIAS(b)		DISPLAY_CMD=(0x50|((b)&0x07))
+#define DISPLAY_SET_UW_CORNER_X(x)	DISPLAY_CMD=0x60; \
+					DISPLAY_CMD=((x)&0x7f)
+#define DISPLAY_SET_UW_CORNER_Y(y)	DISPLAY_CMD=0x61; \
+					DISPLAY_CMD=(y)
+#define DISPLAY_SET_LW_CORNER_X(x)	DISPLAY_CMD=0x62; \
+					DISPLAY_CMD=((x)&0x7f)
+#define DISPLAY_SET_LW_CORNER_Y(y)	DISPLAY_CMD=0x63; \
+					DISPLAY_CMD=(y)
+#define DISPLAY_SET_CONV_FACTOR(c)	DISPLAY_CMD=(0x64|((c)&0x03))
+#define DISPLAY_SET_CONTRAST(c)		DISPLAY_CMD=0x81; \
+					DISPLAY_CMD=((c)&0x3f)
+#define DISPLAY_SET_WHITE(a,b,c,d)	DISPLAY_CMD=0x88; \
+					DISPLAY_CMD=(((b)&0x0f)<<4|((a)&0x0f)); \
+					DISPLAY_CMD=0x89; \
+					DISPLAY_CMD=(((d)&0x0f)<<4|((c)&0x0f))
+#define DISPLAY_SET_LGRAY(a,b,c,d)	DISPLAY_CMD=0x8a; \
+					DISPLAY_CMD=(((b)&0x0f)<<4|((a)&0x0f)); \
+					DISPLAY_CMD=0x8b; \
+					DISPLAY_CMD=(((d)&0x0f)<<4|((c)&0x0f))
+#define DISPLAY_SET_DGRAY(a,b,c,d)	DISPLAY_CMD=0x8c; \
+					DISPLAY_CMD=(((b)&0x0f)<<4|((a)&0x0f)); \
+					DISPLAY_CMD=0x8d; \
+					DISPLAY_CMD=(((d)&0x0f)<<4|((c)&0x0f))
+#define DISPLAY_SET_BLACK(a,b,c,d)	DISPLAY_CMD=0x88; \
+					DISPLAY_CMD=(((b)&0x0f)<<4|((a)&0x0f)); \
+					DISPLAY_CMD=0x89; \
+					DISPLAY_CMD=(((d)&0x0f)<<4|((c)&0x0f))
+#define DISPLAY_SET_PWM_FRC(p,f)	DISPLAY_CMD=(0x90|(((f&0x01)<<2)|p&0x03))
+#define DISPLAY_SET_SEGMENT_REMAP_00H	DISPLAY_CMD=0xa0
+#define DISPLAY_SET_SEGMENT_REMAP_7fH	DISPLAY_CMD=0xa1
+#define DISPLAY_RAM_CONTENTS_ON		DISPLAY_CMD=0xa4
+#define DISPLAY_ENTIRE_ON		DISPLAY_CMD=0xa5
+#define DISPLAY_NORMAL			DISPLAY_CMD=0xa6
+#define DISPLAY_REVERSE			DISPLAY_CMD=0xa7
+#define DISPLAY_SET_POWER_SAVE		DISPLAY_CMD=0xa9
+#define DISPLAY_START_OSCILLATOR	DISPLAY_CMD=0xab
+#define DISPLAY_SET_OFF			DISPLAY_CMD=0xae
+#define DISPLAY_SET_ON			DISPLAY_CMD=0xaf
+#define DISPLAY_SET_PAGE_ADDR(p)	DISPLAY_CMD=0xb0; \
+					DISPLAY_CMD=((p)&0x1f)
+#define DISPLAY_SET_COM_ODIR_NORMAL	DISPLAY_CMD=0xc0
+#define DISPLAY_SET_COM_ODIR_REMAPPED	DISPLAY_CMD=0xc8
+#define DISPLAY_EXIT_POWER_SAVE		DISPLAY_CMD=0xe1
+#define DISPLAY_SOFT_RESET		DISPLAY_CMD=0xe2
+#define DISPLAY_EXIT_NLINE_INVERSION	DISPLAY_CMD=0xe4
+#define DISPLAY_SCROLL_BUF_ENABLE	DISPLAY_CMD=0xe6
+#define DISPLAY_SCROLL_BUF_DISABLE	DISPLAY_CMD=0xe7
+#define DISPLAY_SET_TC(c)		DISPLAY_CMD=0xe9; \
+					DISPLAY_CMD=(c)
+#define DISPLAY_EXTENDED_FEATURES	DISPLAY_CMD=0xf0
+
 /* function prototypes */
 void display_bl_init(void);
 void display_bl_toggle(void);
-- 
2.20.1