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