134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/* lib-mylcd.h
|
|
|
|
used by interfacedemo for "pyramid" LCD device.
|
|
*/
|
|
|
|
/*
|
|
Copyright (C) 2005 Silvan Marco Fin <silvan@kernelconcepts.de>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
|
|
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include "lib-mylcd.h"
|
|
|
|
#define DEBUG 0
|
|
|
|
/* Request information from LCDd */
|
|
|
|
int get_integer(int SD, char *request)
|
|
{
|
|
static char output[MAXREAD];
|
|
|
|
write(SD, request, strlen(request));
|
|
read(SD, output, MAXREAD-1);
|
|
return atoi(output);
|
|
}
|
|
|
|
/* Used to parse the reply from the hello-msg.
|
|
*/
|
|
void parse_hello(char *input)
|
|
{
|
|
char *next=input;
|
|
char *retval;
|
|
|
|
while (1)
|
|
{
|
|
retval=strtok(next, " ");
|
|
next=NULL;
|
|
if (retval==NULL)
|
|
break;
|
|
if (strcmp(retval, "wid")==0)
|
|
screen.width=atoi(strtok(next, " "));
|
|
if (strcmp(retval, "hgt")==0)
|
|
screen.height=atoi(strtok(next, " "));
|
|
}
|
|
}
|
|
|
|
int parse_reply(char *input)
|
|
{
|
|
char *next=input;
|
|
char *retstr;
|
|
int retint=UNKNOWNKEY;
|
|
int inputlen=strlen(input);
|
|
int len=0;
|
|
|
|
printf("Eingabe: %s\n", input);
|
|
while (1)
|
|
{
|
|
retstr=strtok(next, " \n");
|
|
next=NULL;
|
|
if (retstr==NULL)
|
|
{
|
|
input[0]=0; /* wofür war das? */
|
|
break;
|
|
}
|
|
len+=strlen(retstr)+1;
|
|
/* key detected? */
|
|
if (strcmp(retstr, "key")==0)
|
|
{
|
|
retstr=strtok(next, " \n");
|
|
len+=strlen(retstr)+1;
|
|
if (strcmp(retstr, "Escape")==0)
|
|
retint=ESCAPEKEY;
|
|
if (strcmp(retstr, "Down")==0)
|
|
retint=DOWNKEY;
|
|
if (strcmp(retstr, "Right")==0)
|
|
retint=RIGHTKEY;
|
|
if (strcmp(retstr, "Enter")==0)
|
|
retint=ENTERKEY;
|
|
|
|
input=strncpy(input, &input[len], inputlen-len+1);
|
|
|
|
return retint;
|
|
}
|
|
}
|
|
return NOKEY;
|
|
}
|
|
|
|
char *basic_send(int SD, char *request)
|
|
{
|
|
static char answer[MAXREAD];
|
|
if (DEBUG)
|
|
printf("Sending command: %s\n", request);
|
|
memset(answer, 0, MAXREAD);
|
|
write(SD, request, strlen(request));
|
|
write(SD, "\n", strlen("\n"));
|
|
read(SD, answer, MAXREAD);
|
|
if (DEBUG)
|
|
printf("Answer to command to LCDproc: %s\n", answer);
|
|
|
|
return answer;
|
|
}
|
|
|
|
char *basic_read(int SD)
|
|
{
|
|
static char answer[MAXREAD];
|
|
memset(answer, 0, MAXREAD);
|
|
if (DEBUG)
|
|
printf("Going for read!\n");
|
|
read(SD, answer, MAXREAD);
|
|
if (DEBUG)
|
|
printf("Read returned: %s\n", answer);
|
|
|
|
return answer;
|
|
}
|
|
|
|
|