soarers_converter/source/rawhid/PJRC_rawhid_source/rawhid_test.c
2019-07-30 12:54:53 -04:00

96 lines
1.9 KiB
C
Executable File

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#if defined(OS_LINUX) || defined(OS_MACOSX)
#include <sys/ioctl.h>
#include <termios.h>
#elif defined(OS_WINDOWS)
#include <conio.h>
#endif
#include "hid.h"
static char get_keystroke(void);
int main()
{
int i, r, num;
char c, buf[64];
r = rawhid_open(1, 0x16C0, 0x0480, 0xFFAB, 0x0200);
if (r <= 0) {
printf("no rawhid device found\n");
return -1;
}
printf("found rawhid device\n");
while (1) {
// check if any Raw HID packet has arrived
num = rawhid_recv(0, buf, 64, 220);
if (num < 0) {
printf("\nerror reading, device went offline\n");
rawhid_close(0);
return 0;
}
if (num > 0) {
printf("\nrecv %d bytes:\n", num);
for (i=0; i<num; i++) {
printf("%02X ", buf[i] & 255);
if (i % 16 == 15 && i < num-1) printf("\n");
}
printf("\n");
}
// check if any input on stdin
while ((c = get_keystroke()) >= 32) {
printf("\ngot key '%c', sending...\n", c);
buf[0] = c;
for (i=1; i<64; i++) {
buf[i] = 0;
}
rawhid_send(0, buf, 64, 100);
}
}
}
#if defined(OS_LINUX) || defined(OS_MACOSX)
// Linux (POSIX) implementation of _kbhit().
// Morgan McGuire, morgan@cs.brown.edu
static int _kbhit() {
static const int STDIN = 0;
static int initialized = 0;
int bytesWaiting;
if (!initialized) {
// Use termios to turn off line buffering
struct termios term;
tcgetattr(STDIN, &term);
term.c_lflag &= ~ICANON;
tcsetattr(STDIN, TCSANOW, &term);
setbuf(stdin, NULL);
initialized = 1;
}
ioctl(STDIN, FIONREAD, &bytesWaiting);
return bytesWaiting;
}
static char _getch(void) {
char c;
if (fread(&c, 1, 1, stdin) < 1) return 0;
return c;
}
#endif
static char get_keystroke(void)
{
if (_kbhit()) {
char c = _getch();
if (c >= 32) return c;
}
return 0;
}