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Viewing changes to lib/lcdnet.c

  • Committer: Bazaar Package Importer
  • Author(s): Adam Cécile (Le_Vert)
  • Date: 2006-09-23 17:58:08 UTC
  • Revision ID: james.westby@ubuntu.com-20060923175808-1y364v1jk38av0yp
Tags: upstream-1.0.2
Import upstream version 1.0.2

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lib/lcdnet.c
 
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/*
 
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 * Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
 
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 *
 
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 * Use is subject to the GNU Lesser General Public License, Version 2.1,
 
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 * February 1999, which is contained in the read-me file named
 
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 * "README_GNU_LGPL." This library is free software; you can
 
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 * redistribute it and/or modify it under the terms of the GNU
 
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 * Lesser General Public License as published by the Free Software
 
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 * Foundation; either version 2.1 of the License, or (at your
 
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 * option) any later version. This library is distributed in the
 
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 * hope that it will be useful, but WITHOUT ANY WARRANTY; without
 
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 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 
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 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 
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 * for more details.
 
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 *
 
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 * You should have received a copy of the GNU Lesser General Public
 
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 * License along with this library; if not, write to the Free
 
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 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 
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 * MA  02111-1307  USA.
 
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 *
 
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 * read functions for the lcd. we handle both buttons and 
 
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 * reading from the panel. */
 
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#include <stdio.h>
 
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#include <stdlib.h>
 
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#include <string.h>
 
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#include <sys/time.h>
 
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#include <sys/types.h>
 
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#include <unistd.h>
 
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#include "lcdutils.h"
 
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#include "lcd_private.h"
 
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void lcd_rev_format( char *in ) {
 
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        int  one, two, three, four;
 
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        sscanf(in,"%d.%d.%d.%d", &one, &two, &three, &four);
 
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        if (one > 255) one = 0;
 
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        if (two > 255) two = 0;
 
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        if (three > 255) three = 0;
 
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        if (four > 255) four = 0;
 
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        sprintf(in,"%03d.%03d.%03d.%03d",one,two,three,four);
 
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} 
 
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int lcd_netbutton(void *lcd) {
 
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        int     firstdigit = 0;
 
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        int   button, i, ctr=0;
 
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        lcd_set(lcd, LCD_Cursor_On);
 
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        while( 1 ) {
 
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                button = lcd_readbutton(lcd) & 0x00FF;
 
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                if ( (button != BUTTON_NONE) && (button != BUTTON_NONE_B) ) {
 
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                        ctr++;
 
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                        if ( (ctr==lcd_button_debounce(lcd)) ) {
 
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                                switch (button) {
 
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                                        case BUTTON_Left:
 
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                                        case BUTTON_Left_B:
 
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                                                i = lcd_getcursorpos(lcd);
 
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                                                if (i != 0x40) {
 
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                                                        lcd_set(lcd, LCD_Cursor_Left);
 
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                                                        i = lcd_getcursor(lcd);
 
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                                                        if (i == '.')
 
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                                                                lcd_set(lcd, LCD_Cursor_Left);
 
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                                                }
 
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                                                break;
 
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                                        case BUTTON_Right:
 
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                                        case BUTTON_Right_B:
 
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                                                i = lcd_getcursorpos(lcd);
 
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                                                if (i != 0x4E) {
 
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                                                        lcd_set(lcd, LCD_Cursor_Right);
 
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                                                        i = lcd_getcursor(lcd);
 
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                                                        if (i == '.')
 
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                                                                lcd_set(lcd, LCD_Cursor_Right);
 
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                                                }
 
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                                                break;
 
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                                        case BUTTON_Up:
 
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                                        case BUTTON_Up_B:
 
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                                                i = lcd_getcursorpos(lcd);
 
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                                                firstdigit = 0;
 
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                                                firstdigit = ( i == 0x40 ) || ( i == 0x44 ) || ( i == 0x48 ) || ( i == 0x4C );
 
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                                                i = lcd_getcursor(lcd);
 
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                                                if (i == '9')
 
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                                                        i = '0';
 
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                                                else if ((i == '2') && (firstdigit))
 
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                                                        i = '0';
 
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                                                else    
 
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                                                        i++;
 
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                                                lcd_setcursor(lcd, i);
 
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                                                break;
 
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                                        case BUTTON_Down:
 
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                                        case BUTTON_Down_B:
 
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                                                i = lcd_getcursorpos(lcd);
 
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                                                firstdigit = 0;
 
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                                                firstdigit = ( i == 0x40 ) || ( i == 0x44 ) || ( i == 0x48 ) || ( i == 0x4C );
 
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                                                i = lcd_getcursor(lcd);
 
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                                                if ((i == '0') && (!firstdigit))
 
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                                                        i = '9';
 
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                                                else if ((i == '0') && (firstdigit))
 
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                                                        i = '2'; 
 
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                                                else
 
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                                                        i--;
 
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                                                lcd_setcursor(lcd, i);
 
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                                                break;
 
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                                        case BUTTON_Next:
 
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                                        case BUTTON_Next_B:
 
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                                                break;
 
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                                        case BUTTON_Enter:
 
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                                        case BUTTON_Enter_B:
 
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                                                lcd_getdisplay(lcd, NULL, NULL, &i);
 
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                                                return i;
 
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                                                break;
 
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                                }
 
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                                lcd_netcorrect(lcd);
 
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                        }
 
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                        if (ctr==lcd_button_sense(lcd)) {
 
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                                ctr=0;
 
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                        }
 
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                }
 
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                else {
 
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                        ctr=0;
 
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                }
 
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        }
 
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}
 
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static void mangle_num(char *line) {
 
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        char *first = line + 1, *second = line + 2;
 
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        if ( *line == '2' ) {
 
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                if ( *first == '9' )
 
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                        *first = '5';
 
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                else if ( *first > '5' )
 
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                        *first = '0';
 
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                else if (*first == '5') {
 
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                        if (*second == '9') 
 
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                                *second = '5';
 
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                        else if (*second > '5') 
 
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                                *second = '0';
 
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                }  
 
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        }
 
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}
 
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void lcd_netcorrect(void *lcd) {
 
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        char last_address;
 
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        char *line1, last_line1[LCD_CHARS_PER_LINE];
 
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        char *line2, last_line2[LCD_CHARS_PER_LINE];
 
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        last_address = lcd_getcursorpos(lcd);
 
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        lcd_getdisplay(lcd, &line1, &line2, NULL);
 
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        strcpy(last_line1, line1); 
 
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        strcpy(last_line2, line2); 
 
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        mangle_num(last_line2);
 
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        mangle_num(last_line2 + 4);
 
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        mangle_num(last_line2 + 8);
 
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        mangle_num(last_line2 + 12);
 
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        lcd_write(lcd, last_line1, last_line2);
 
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        lcd_setcursorpos(lcd, last_address);
 
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        lcd_set(lcd, LCD_Cursor_On);
 
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}