File content as of revision 0:9311b440e62b:

/* 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();
}