From d4825766560e27594abee4b3a00dff7fd4260826 Mon Sep 17 00:00:00 2001
From: Tectu <joel@unormal.org>
Date: Tue, 29 May 2012 02:04:04 +0200
Subject: [PATCH] added portrait and landscape inverse mode

---
 glcd.c | 18 +++++++++++-------
 glcd.h |  2 +-
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/glcd.c b/glcd.c
index be4e1694..5effa0eb 100755
--- a/glcd.c
+++ b/glcd.c
@@ -68,19 +68,19 @@ static __inline uint16_t lcdReadReg(uint16_t lcdReg) {
 
 static void lcdSetCursor(uint16_t x, uint16_t y) {
 	if(DeviceCode==0x8989) {
-		if(orientation == portrait) {
+		if(orientation == portrait || orientation == portraitInv) {
 			lcdWriteReg(0x004e, x);
 	    	lcdWriteReg(0x004f, y);
-		} else if(orientation == landscape) {
+		} else if(orientation == landscape || orientation == landscapeInv) {
 			lcdWriteReg(0x004e, y);
 			lcdWriteReg(0x004f, x);
 		}
 	}
 	else if(DeviceCode==0x9919) {
-		if(orientation == portrait) {
+		if(orientation == portrait || orientation == portraitInv) {
 			lcdWriteReg(0x004e, x);
 			lcdWriteReg(0x004f, y);
-		} else if(orientation == landscape) {
+		} else if(orientation == landscape || orientation == landscapeInv) {
 			lcdWriteReg(0x004e, y);
 			lcdWriteReg(0x004f, x);
 		}
@@ -94,7 +94,7 @@ static void lcdDelay(uint16_t nCount) {
 	uint16_t TimingDelay; 
 	
 	while(nCount--) {
-		for(TimingDelay=0;TimingDelay<10000;TimingDelay++)
+		for(TimingDelay=0; TimingDelay<10000; TimingDelay++)
 			asm("nop");
 	}
 }
@@ -111,9 +111,13 @@ void lcdSetOrientation(uint8_t newOrientation) {
 			lcdWriteReg(0x0001, 0x293F);
 			lcdWriteReg(0x0011, 0x6078);
 			break;
-		case 2:
+		case portraitInv:
+			lcdWriteReg(0x0001, 0x693F);
+			lcdWriteReg(0x0011, 0x6040);
 			break;
-		case 3:
+		case landscapeInv:
+			lcdWriteReg(0x0001, 0x6B3F);
+			lcdWriteReg(0x0011, 0x6048);
 			break;
 	}
 }
diff --git a/glcd.h b/glcd.h
index b0bf0b52..166fb10c 100755
--- a/glcd.h
+++ b/glcd.h
@@ -42,7 +42,7 @@
 (( green >> 2 ) << 5  ) | \
 ( blue  >> 3 ))
 
-enum orientation {portrait = 0, landscape = 1};
+enum orientation {portrait, landscape, portraitInv, landscapeInv};
 
 void lcdInit(void);
 void lcdClear(uint16_t color);