2dcf20ec
 HAMEL
first program wit...
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/*
* Very basic emulation of an Arduino UNO with some buttons and some LEDs
*/
////
// Include files
////
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/poll.h>
#include <sys/time.h>
#include "virtual_serial.h"
#include "arduino.h"
////
// Constants
////
#define SERIAL_SPEED 9600
#define SLEEP_DELAY 100
#define MAX_NAME 1024
#define MAX_LINE 1024
#define MAX_SERIAL 1024
////
// Global variables
////
////
// Utility functions
////
static unsigned char ledstates[LEDS_NB];
void led(int num,unsigned char state){
if(num>=0 && num<LEDS_NB) ledstates[num]=state;
int i;
printf(" LEDs: ");
for(i=0;i<LEDS_NB;i++) printf("[%c] ",ledstates[i]?'X':' ');
printf("\r");
fflush(stdout);
}
static unsigned char outbuf[MAX_SERIAL];
int outsize=0;
void serialSend(unsigned char *data,int size){
if(size+outsize<MAX_SERIAL){
memcpy(outbuf+outsize,data,size);
}
}
static unsigned char butstates[BUTTONS_NB];
static void _button(int num,unsigned char state){
if(num>=0 && num<BUTTONS_NB) butstates[num]=state;
int i;
printf("Buttons: ");
for(i=0;i<BUTTONS_NB;i++) printf("[%c] ",(butstates[i]?'A':'a')+i);
printf("\n");
}
unsigned char button(int num){
if(num>=0 && num<BUTTONS_NB) return butstates[num];
return 255;
}
long millis(void){
struct timeval tv;
gettimeofday(&tv,NULL);
return tv.tv_sec*1000+tv.tv_usec/1000;
}
////
// Events function
////
static void handleEvents(int sd){
struct pollfd fds[2];
char line[MAX_LINE];
unsigned char packet[MAX_SERIAL];
int ret;
// my variables
//
fds[0].fd=STDIN_FILENO;
fds[0].events=POLLIN;
fds[1].fd=sd;
fds[1].events=POLLIN;
while(1){
loop();
ret=poll(fds,2,SLEEP_DELAY);
if(ret==-1){ perror("poll"); exit(EXIT_FAILURE); }
if(fds[0].revents&POLLIN){
if(fgets(line,MAX_LINE,stdin)==NULL){ perror("fgets"); exit(EXIT_FAILURE); }
#ifdef DEBUG
printf("keyboard: %s",line);
#endif
int i;
for(i=0;i<strlen(line);i++){
if(line[i]>='a' && line[i]<='d') _button(line[i]-'a',0);
if(line[i]>='A' && line[i]<='D') _button(line[i]-'A',1);
}
}
if(fds[1].revents&POLLIN){
int nb;
if((nb=read(sd,packet,MAX_SERIAL))<=0) break;
#ifdef DEBUG
printf("serial in: ");
#endif
int i;
for(i=0;i<nb;i++){
#ifdef DEBUG
printf("%02x ",packet[i]);
#endif
serialInHandler(packet[i]);
}
#ifdef DEBUG
printf("\n");
#endif
}
if(outsize>0){
if(write(sd,outbuf,outsize)!=outsize) break;
#ifdef DEBUG
printf("serial out: ");
int i;
for(i=0;i<outsize;i++){
printf("%02x ",outbuf[i]);
}
printf("\n");
#endif
outsize=0;
}
}
}
////
// Main function
////
int main(void){
char name[MAX_NAME];
int sd=virtualSerialOpen(name,SERIAL_SPEED);
printf("Slave device is '%s'\n",name);
setup();
handleEvents(sd);
virtualSerialClose(sd);
exit(0);
}
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