File content as of revision 4:aa6dc362b462:

/* mbed Newhaven LCD Library, for the NHD-320240WG model
 * Copyright (c) 2011, Paul Evans
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "mbed.h" 

class NHLCD {
    public:
        /* Creates a Newhaven LCD interface using several DigitalOut pins and a 8-bit BusInOut
         *
         * @param PIN_E Operation enable signal
         * @param PIN_RW Read/Write select signal (1 = read, 0 = write)
         * @param PIN_A0 Register select signal (1 = data, 0 = command)
         * @param PIN_CS Active LOW chip select
         * @param PIN_RST Active LOW reset signal
         * @param BUSLCD Bi-directional 8-bit data bus
         */
        NHLCD(PinName PIN_E,PinName PIN_RW,PinName PIN_A0,PinName PIN_CS,PinName PIN_RST, BusInOut *BUSLCD);
        
        /* Initializes the LCD 
         */
        void Init();
        
        /* Outputs a command across the 8-bit bus to the LCD
         *
         * @param j hex-code of command
         */
        void comm_out(unsigned char j);
        
        /* Outputs data across the 8-bit bus to the LCD
         *
         * @param j data to send
         */
        void data_out(unsigned char j);
        
        /* Clears the entire screen of set pixels
         */
        void clearScreen();
        
        /* Writes text to the LCD (with a resolution of 40x30 characters)
         *
         * @param text a string of text to write on the screen
         * @param row the row of the first character
         * @param col the column of the first character
         */
        void text(char* text, char row, char col);
        
        /* Sets an individual pixel on the LCD (with a resolution of 320x240 pixels)
         *
         * @param row the row of the pixel
         * @param col the column of the pixel
         * @param color 1 = on, 0 = off
         */
        void setPixel(int row, int col, int color);
        
        /* draws a line on the LCD
         *
         * @param r1 the row of the first endpoint
         * @param c1 the column of the first endpoint
         * @param r2 the row of the second endpoint
         * @param c2 the column of the second endpoint
         * @param color 1 = on, 0 = off
         */
        void drawLine(int r1, int c1, int r2, int c2, int color);
        
        /* draws and fills a rectangle on the LCD
         *
         * @param row the row of the top-left pixel
         * @param col the column of the top-left pixel
         * @param width the width of the rectangle
         * @param height the height of the rectangle
         * @param color 1 = on, 0 = off
         */
        void fillRect(int row, int col, int width, int height, int color);
        
    private:
        DigitalOut E,RW,A0,CS,RST;   
        BusInOut *LCD_PORT;
        unsigned char screenBuffer[240*40];   
        
};

void delay(unsigned int n);
void delay1(unsigned int n);
void swap(int* a, int* b);