Diff: I2CLCD.cpp

Revision:

3:d245cf5af33d

Parent:

2:bc4583ce560e

Child:

4:7ccff59f3b3a

--- a/I2CLCD.cpp	Sun Feb 27 14:28:40 2011 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,200 +0,0 @@
-/*
- * mbed library for I2C LCD
- * Copyright (c) 2011 Hiroshi Suga
- * Released under the MIT License: http://mbed.org/license/mit
- *
- * This product includes:
- * mbed TextLCD Library, for a 4-bit LCD based on HD44780
- * Copyright (c) 2007-2010, sford
- */
-
-/** @file I2CLCD.cpp
- * @brief I2C LCD library (mbed Phone Platform)
- */
-
-#include "mbed.h"
-#include "I2CLCD.h"
-
-/**
- * @brief put character to LCD
- * @param value ASCII character code
- * @retval value
- */
-int I2CLCD::_putc (int value) {
-
-    if (value == '\n') {
-        x = 0;
-        y ++;
-        if (y >= rows()) {
-            y = 0;
-            lcd_out(address(x, y), 0);
-        }
-
-    } else {
-
-        lcd_out(address(x, y), 0);
-        lcd_out(value, 1);
-        x ++;
-        if (x >= cols()) {
-            x = 0;
-            y ++;
-            if (y >= rows()) {
-                y = 0;
-                lcd_out(address(x, y), 0);
-            }
-        }
-    }
-
-    return value;
-}
-
-/**
- * @brief get character from LCD
- * @retval ASCII character code
- */
-int I2CLCD::_getc() {
-    return lcd_in(0);
-}
-
-
-/**
- * @brief put character to LCD
- * @param p_sda port of I2C SDA
- * @param p_scl port of I2C SCL
- * @param p_i2caddr I2C address
- */
-I2CLCD::I2CLCD (PinName p_sda, PinName p_scl, int p_i2caddr, I2CLCDType p_type, I2CLCDConfig p_config) : i2c(p_sda, p_scl) {
-    init(p_i2caddr, p_type, p_config);
-}
-
-/**
- * @brief put character to LCD
- * @param p_i2c instance of I2C class
- * @param p_i2caddr I2C address
- */
-I2CLCD::I2CLCD (I2C& p_i2c, int p_i2caddr, I2CLCDType p_type, I2CLCDConfig p_config) : i2c(p_i2c) {
-    init(p_i2caddr, p_type, p_config);
-}
-
-void I2CLCD::init (int p_i2caddr, I2CLCDType p_type, I2CLCDConfig p_config) {
-
-    i2caddr = p_i2caddr;
-    type = p_type;
-
-    lcd_cfg(p_config);
-
-    wait_ms(500);
-    lcd_out(0x30, 0);
-    wait_ms(5);
-    lcd_out(0x30, 0);
-    wait_ms(2);
-    lcd_out(0x30, 0);
-
-    lcd_out(0x38, 0); // func 
-    lcd_out(0x10, 0); // shift
-    lcd_out(0x0c, 0); // display
-    lcd_out(0x06, 0); // entry mode
-    cls();
-}
-
-void I2CLCD::cls() {
-    lcd_out(0x01, 0); // clear
-    wait_ms(2);
-    lcd_out(0x02, 0); // home
-    wait_ms(2);
-    locate(0, 0);
-}
-
-void I2CLCD::locate(int col, int row) {
-    x = col;
-    y = row;
-    lcd_out(address(x, y), 0);
-}
-
-int I2CLCD::address(int col, int row) {
-    switch (type) {
-        case LCD16x1:
-            return (col < 8 ? 0x80 : 0xc0) + (col & 0x03);
-        case LCD16x4:
-        case LCD20x4:
-            switch (row) {
-                case 0:
-                    return 0x80 + col;
-                case 1:
-                    return 0xc0 + col;
-                case 2:
-                    return 0x94 + col;
-                case 3:
-                    return 0xd4 + col;
-            }
-        case LCD16x2B:
-            return 0x80 + (row * 40) + col;
-        case LCD8x2:
-        case LCD16x2:
-        case LCD20x2:
-        default:
-            return 0x80 + (row * 0x40) + col;
-    }
-}
-
-int I2CLCD::cols() {
-    switch (type) {
-        case LCD8x2:
-            return 8;
-        case LCD20x4:
-        case LCD20x2:
-            return 20;
-        case LCD16x1:
-        case LCD16x2:
-        case LCD16x2B:
-        case LCD16x4:
-        default:
-            return 16;
-    }
-}
-
-int I2CLCD::rows() {
-    switch (type) {
-        case LCD16x1:
-            return 1;
-        case LCD16x4:
-        case LCD20x4:
-            return 4;
-        case LCD8x2:
-        case LCD16x2:
-        case LCD16x2B:
-        case LCD20x2:
-        default:
-            return 2;
-    }
-}
-
-void I2CLCD::lcd_cfg (I2CLCDConfig cfg) {
-    i2c.start();
-    i2c.write(i2caddr);
-    i2c.write(LCDCFG_ENABLE | (cfg & 0x1f));
-    i2c.stop();
-}
-
-void I2CLCD::lcd_out (char dat, char rs) {
-    i2c.start();
-    i2c.write(i2caddr);
-    i2c.write(rs ? 0x40 : 0);
-    i2c.write(dat);
-    i2c.stop();
-}
-
-char I2CLCD::lcd_in (char rs) {
-    char i;
-
-    i2c.start();
-    i2c.write(i2caddr);
-    i2c.write(rs ? 0x40 : 0);
-
-    i2c.start();
-    i2c.write(i2caddr | 0x01);
-    i = i2c.read(0);
-    i2c.stop();
-
-    return i;
-}