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142 lines
3.8 KiB
C
142 lines
3.8 KiB
C
/*
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* Copyright (c) 2006, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* Author : Adam Dunkels
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*/
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#include "lcd.h"
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#include "hal_lcd.h"
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#define WITH_LCD 1
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#define Y_MAX 9
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#define X_MAX 15
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static int xpos, ypos;
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#define X_CHAR_SIZE 8
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#define Y_CHAR_SIZE 9
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#define SCROLL_AREA LCD_MAX_SCROLL_AREA
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/*---------------------------------------------------------------------------*/
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void
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lcd_init(void)
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{
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if(WITH_LCD) {
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halLcdInit();
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halLcdActive();
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halLcdBackLightInit();
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halLcdSetBackLight(8);
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lcd_clear();
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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lcd_clear(void)
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{
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if(WITH_LCD) {
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halLcdClearScreen();
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xpos = ypos = 0;
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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lcd_set_pixel(int x, int y, int intensity)
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{
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if(WITH_LCD) {
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halLcdPixel(x, y, intensity);
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}
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}
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/*---------------------------------------------------------------------------*/
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static void
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inc_y(void)
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{
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if(WITH_LCD) {
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ypos++;
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xpos = 0;
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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lcd_write_char(char c)
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{
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char string[2];
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if(WITH_LCD) {
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if(c == '\n') {
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inc_y();
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} else {
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string[0] = c;
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string[1] = 0;
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if(ypos == Y_MAX) {
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lcd_clear();
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ypos = xpos = 0;
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}
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halLcdPrintXY(string, xpos * X_CHAR_SIZE, ypos * Y_CHAR_SIZE, 0);
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if(xpos == X_MAX) {
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inc_y();
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} else {
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xpos++;
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}
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}
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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lcd_draw_line(int x0, int y0, int x1, int y1)
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{
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if(WITH_LCD) {
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halLcdLine(x0, y0, x1, y1, 3);
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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lcd_draw_vertical_line(int pixels)
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{
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if(WITH_LCD) {
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if(pixels > SCROLL_AREA) {
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pixels = SCROLL_AREA;
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}
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lcd_draw_line(LCD_MAX_X, LCD_MAX_Y - pixels, LCD_MAX_X, LCD_MAX_Y);
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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lcd_scroll_x(void)
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{
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if(WITH_LCD) {
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halLcdHScroll(LCD_MAX_Y - SCROLL_AREA, LCD_MAX_Y);
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halLcdLine(LCD_MAX_X, LCD_MAX_Y - SCROLL_AREA, LCD_MAX_X, LCD_MAX_Y, 0);
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}
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}
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/*---------------------------------------------------------------------------*/
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