Diff: MobileLCD.cpp

Revision:

0:05ffcf87fc7f

diff -r 000000000000 -r 05ffcf87fc7f MobileLCD.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MobileLCD.cpp	Tue Sep 01 16:44:44 2009 +0000
@@ -0,0 +1,426 @@
+/* mbed Library - MobileLCD
+ * Copyright (c) 2007, sford
+ */
+ 
+#include "MobileLCD.h"
+
+#include "mbed.h"
+
+using namespace mbed;
+
+MobileLCD::MobileLCD(int mosi, int miso, int clk, int cs, int rst) 
+	: _spi(mosi, miso, clk)
+	, _rst(rst)
+	, _cs(cs) {
+
+	_row = 0;
+	_column = 0;
+	_rows = 16;
+	_columns = 16;
+	_width = 130;
+	_height = 130;
+	foreground(0x00FFFFFF);
+	background(0x00000000);
+	reset();
+}
+	
+void MobileLCD::reset() {
+	_cs = 1;
+	_rst = 0;
+	_spi.format(9);
+	_spi.frequency(5000000);
+	wait(0.001);
+	_rst = 1;
+	wait(0.001);
+	_select();
+	command(0xCA); // display control  
+	data(0);
+  	data(32);
+ 	data(0);
+	command(0xBB);  
+    data(1);
+    
+  	command(0xD1); // oscillator on
+  	command(0x94); // sleep out
+	command(0x20); // power control
+  	data(0x0F); 
+
+  	command(0xA7); // invert display
+
+	command(0x81); // Voltage control
+   	data(39);      // contrast setting: 0..63
+   	data(3);       // resistance ratio
+	wait(0.001);
+		
+	orientation();
+		
+	// clear screen, including surrounding border
+	_window(0, 0, 130, 130);
+	for(int i=0; i<130*130; i++) {
+		_putp(0x000000);
+	}
+	command(0xAF);  // turn on the display
+    
+    _deselect();
+
+}
+ 	
+void MobileLCD::command(int value) {
+	_spi.write(value & 0xFF);
+}
+
+void MobileLCD::data(int value) {
+	_spi.write(value | 0x100);
+}
+
+void MobileLCD::_select() {
+	_cs = 0;	
+}
+	
+void MobileLCD::_deselect() {
+	_cs = 1;
+}
+			
+void MobileLCD::_window(int x, int y, int width, int height) {
+	int x1, x2, y1, y2;
+	switch(0) { //_rotation) {
+		default:
+		case 0:
+			x1 = x + 2;
+			y1 = y + 0;
+			x2 = x1 + width - 1;
+			y2 = y1 + height - 1;		
+			break;
+		case 1:
+			x1 = y + 1;
+			y1 = x + 1;
+			x2 = x1 + height - 1;
+			y2 = y1 + width - 1;					
+		break;
+		case 2:
+			x1 = x + 1;
+			y1 = y + 3;
+			x2 = x1 + width - 1;
+			y2 = y1 + height - 1;		
+			break;
+		case 3:
+			x1 = y + 3;
+			y1 = x + 3;
+			x2 = x1 + height - 1;
+			y2 = y1 + width - 1;					
+		break;
+	}
+	command(0x15); // column
+	data(x1);       
+	data(x2); 
+	command(0x75); // page
+  	data(y1);            
+  	data(y2);
+   	command(0x5C); // start write to ram
+}	
+	
+void MobileLCD::_putp(int colour) {
+	int gr = ((colour >> 20) & 0x0F)
+	       | ((colour >> 8 ) & 0xF0);
+	int nb = ((colour >> 4 ) & 0x0F);
+	data(nb); 
+	data(gr); 
+}
+
+void MobileLCD::orientation() {
+	int m;
+	switch(0) { //_rotation) {
+		case 0:
+		default:
+			m = 3;
+			break;
+		case 2:
+			m = 0;
+	  		break;
+		case 1:
+			m = 5;
+	  		break;
+		case 3: 
+			m = 6;
+			break;
+	}
+
+	command(0xBC); // data control
+  	data(m); // scan dirs 
+  	data(1); // RGB
+  	data(4); // grayscale   	  	
+}
+	
+	
+const unsigned char FONT8x8[97][8] = {
+0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20
+0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // !
+0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // "
+0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // #
+0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $
+0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // %
+0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // &
+0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // '
+0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // (
+0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // )
+0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // *
+0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // +
+0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // ,
+0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // -
+0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // .
+0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash)
+0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30
+0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1
+0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2
+0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3
+0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4
+0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5
+0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6
+0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7
+0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8
+0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9
+0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // :
+0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ;
+0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // <
+0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // =
+0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // >
+0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ?
+0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40
+0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A
+0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B
+0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C
+0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D
+0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E
+0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F
+0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G
+0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H
+0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I
+0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J
+0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K
+0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L
+0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M
+0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N
+0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O
+0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50
+0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q
+0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R
+0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S
+0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T
+0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U
+0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V
+0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W
+0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X
+0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y
+0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z
+0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [
+0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash)
+0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ]
+0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _
+0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60
+0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a
+0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b
+0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c
+0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d
+0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e
+0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f
+0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g
+0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h
+0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i
+0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j
+0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k
+0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l
+0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m
+0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n
+0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o
+0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p
+0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q
+0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r
+0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s
+0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t
+0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u
+0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v
+0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w
+0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x
+0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y
+0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z
+0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // {
+0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // |
+0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // }
+0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~
+0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}; // DEL
+
+void MobileLCD::locate(int column, int row) {
+	_row = row;
+	_column = column;
+}
+	
+void MobileLCD::newline() {
+	_column = 0;
+	_row++;
+	if(_row >= _rows) {
+		_row = 0;
+	}
+}
+	
+int MobileLCD::_putc(int value) { 
+	int x = _column * 8;  // FIXME: Char sizes
+	int y = _row * 8;
+	bitblit(x + 1, y + 1, 8, 8, (char*)&(FONT8x8[value - 0x1F][0]));
+	
+	_column++;
+
+	if(_column >= _columns) {
+		_row++;
+		_column = 0;
+	}
+		
+	if(_row >= _rows) {
+		_row = 0;
+	}			
+
+	return value;
+}
+
+void MobileLCD::cls() {
+	fill(0, 0, _width, _height, _background);
+	_row = 0;
+	_column = 0;
+}
+
+int MobileLCD::width() { 
+	return _width; 
+}
+
+int MobileLCD::height() { 
+	return _height; 
+}
+
+int MobileLCD::columns() { 
+	return _columns; 
+}
+
+int MobileLCD::rows() { 
+	return _rows; 
+}
+
+void MobileLCD::window(int x, int y, int width, int height) {
+ 	_select();
+ 	_window(x, y, width, height);
+ 	_deselect();
+}
+ 	
+void MobileLCD::putp(int colour) {
+	_select();
+	_putp(colour);
+	_deselect();
+}
+ 	
+void MobileLCD::pixel(int x, int y, int colour) {
+ 	_select();
+	_window(x, y, 1, 1);
+	_putp(colour);
+	_deselect();
+}
+
+void MobileLCD::fill(int x, int y, int width, int height, int colour) {
+	_select();
+	_window(x, y, width, height);
+	for(int i=0; i<width*height; i++) {
+		_putp(colour);
+	}
+	_window(0, 0, _width, _height);
+	_deselect();
+} 	
+
+	
+void MobileLCD::blit(int x, int y, int width, int height, const int* colour) {
+	_select();
+	_window(x, y, width, height);
+	for(int i=0; i<width*height; i++) {
+		_putp(colour[i]);
+	}
+	_window(0, 0, _width, _height);
+	_deselect();
+} 	
+ 	  	
+void MobileLCD::foreground(int v) {
+	_foreground = v;
+}
+
+void MobileLCD::background(int v) {
+	_background = v;
+}
+
+void MobileLCD::bitblit(int x, int y, int width, int height, const char* bitstream) {
+	_select();
+	_window(x, y, width, height);
+	for(int i=0; i<height*width; i++) {
+		int byte = i / 8;
+		int bit = i % 8;	
+		int colour = ((bitstream[byte] << bit) & 0x80) ? _foreground : _background;
+		_putp(colour);
+	}
+	_window(0, 0, _width, _height);
+	_deselect();
+}
+
+#define SWAP(x, y) (x ^= y ^= x ^= y)
+
+void MobileLCD::line(int x1, int y1, int x2, int y2, int colour)
+{
+	int Dx = x2 - x1; 
+	int Dy = y2 - y1;
+	int steep = (abs(Dy) >= abs(Dx));
+	if (steep)
+	{
+		SWAP(x1, y1);
+		SWAP(x2, y2);
+		// recompute Dx, Dy after swap
+		Dx = x2 - x1;
+		Dy = y2 - y1;
+	}
+	int xstep = 1;
+	if (Dx < 0)
+	{
+		xstep = -1;
+		Dx = -Dx;
+	}
+	int ystep = 1;
+	if (Dy < 0)
+	{
+		ystep = -1;		
+		Dy = -Dy; 
+	}
+	int TwoDy = 2*Dy; 
+	int TwoDyTwoDx = TwoDy - 2*Dx; // 2*Dy - 2*Dx
+	int E = TwoDy - Dx; //2*Dy - Dx
+	int y = y1;
+	int xDraw, yDraw;	
+	for (int x = x1; x != x2; x += xstep)
+	{		
+		if (steep)
+		{			
+			xDraw = y;
+			yDraw = x;
+		}
+		else
+		{			
+			xDraw = x;
+			yDraw = y;
+		}
+		// plot
+		pixel(xDraw, yDraw, colour);
+		// next
+		if (E > 0)
+		{
+			E += TwoDyTwoDx; //E += 2*Dy - 2*Dx;
+			y = y + ystep;
+		}
+		else
+		{
+			E += TwoDy; //E += 2*Dy;
+		}
+	}
+}
\ No newline at end of file