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hid_test.c
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hid_test.c
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/*
* 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
* (at your option) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <hidapi.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <ctype.h>
#include <getopt.h>
#include <string.h>
#include "instructions.h"
#if defined _WIN32
#include <winnls.h>
#endif
hid_device *device;
int FindDevice();
unsigned char bufferU[129],bufferI[129];
int vid=0x1209,pid=0x5432,info=0;
int main (int argc, char **argv) {
#define L_IT 0
#define L_EN 1
int d=0,v=0,q=0,r=1,lang=L_EN,c,i,j,block=0,flush=0;
char path[512]="";
char buf[256];
for(i=0;i<256;i++) buf[i]=0;
if (hid_init()!=0) {
fprintf(stderr, "Failed to init hidapi.\n");
return 1;
}
int n=64; int t=2000;
#if defined _WIN32
int langID=GetUserDefaultLangID();
if((langID&0xFF)==0x10) lang=L_IT;
#else
if(getenv("LANG")&&strstr(getenv("LANG"),"it")!=0) lang=L_IT;
#endif
opterr = 0;
int option_index = 0;
struct option long_options[] =
{
{"block", no_argument, &block, 1},
{"flush", no_argument, &flush, 1},
{"verbose", no_argument, &v, 1},
{"quiet", no_argument, &q, 1},
{"info", no_argument, &info, 1},
{"help", no_argument, 0, 'h'},
{"timeout", required_argument, 0, 't'},
{"path", required_argument, 0, 'p'},
{"read", required_argument, 0, 'r'},
{"delay", required_argument, 0, 'd'},
{0, 0, 0, 0}
};
while ((c = getopt_long(argc, argv, "bfvqihn:t:d:p:r:",long_options,&option_index)) != -1)
switch (c)
{
case 'h': //guida
if(!lang) printf("hid_test [opzioni] [dati]\n"
"opzioni: \n"
"-b, block\tusa lettura bloccante\n"
"-d, delay\tritardo lettura (ms) [0]\n"
"-f, flush\tadd openprog flush to end of packet\n"
"-h, help\tguida\n"
"-i, info\tinformazioni sul dispositivo [no]\n"
"-n\t\tdimensione report [64]\n"
"-p, path\tpercorso dispositivo [/dev/usb/hiddev0] \n"
"-q, quiet\tmostra solo risposta [no]\n"
"-r, read\tread N packets [1]\n"
"-t, timeout\tread timeout(ms) [2000]\n"
"-v, verbose\tmostra funzioni [no]\n"
"es. hid_test -i 1 2 3 4\n");
else printf("hid_test [options] [data]\n"
"Write 1 packet and read 1 or more packets\n"
"options: \n"
"-b, block\tuse blocking read\n"
"-d, delay\tread delay (ms) [0]\n"
"-f, flush\tadd openprog flush to end of packet\n"
"-h, help\thelp\n"
"-i, info\tdevice info [no]\n"
"-n\t\treport size [64]\n"
"-p, path\tdevice path [/dev/usb/hiddev0]\n"
"-q, quiet\tprint response only [no]\n"
"-r, read\tread N packets [1]\n"
"-t, timeout\tread timeout (ms) [2000]\n"
"-v, verbose\tshow functions [no]\n"
"e.g. hid_test -i 1 2 3 4\n");
exit(1);
break;
case 'n': n = atoi(optarg); break;
case 'd': d = atoi(optarg); break;
case 't': t = atoi(optarg); break;
case 'r': r = atoi(optarg); break;
case 'p': strncpy(path, optarg, sizeof(path)); break;
case 'f': flush = 1; break;
case 'b': block = 1; break;
case 'q': q=1; break;
case 'v': v=1; break;
case '?':
if (optopt == 'c')
fprintf (stderr, "Option -%c requires an argument.\n", optopt);
else if (isprint (optopt))
fprintf (stderr, "Unknown option `-%c'.\n", optopt);
else
fprintf (stderr, "Unknown option character 0x%02x\n", optopt);
return 1;
default: break;
}
for (j=0,i = optind; i < argc&&i<128; i++,j++) sscanf(argv[i], "%x", &buf[j]);
if (flush) {
buf[j++] = FLUSH;
if (v) printf("flush (%#04x) appended\n", FLUSH);
}
for (;j<n;j++) buf[j]=0;
int fd = -1;
if(FindDevice()<0) exit(1);
if(!q){
printf("-> ");
for(i=0;i<j;i++) printf("%02X ",(unsigned char)buf[i]);
printf("\n");
}
bufferU[0] = 0; // Report ID
memcpy(bufferU+1, buf, n);
int res;
res=hid_write(device, bufferU, n);
if (res == -1) {
fprintf(stderr, "Write failed\n");
hid_close(device);
hid_exit();
return 1;
}
if (v) printf("Wrote %d bytes.\n", n);
if (hid_set_nonblocking(device, block?0:1)) {
fprintf(stderr, "Can't set nonblocking to %d\n", block?0:1);
}
if(v) printf("%slocking read\n",block?"B":"Non b");
for (j=0; j<r; j++) {
usleep(d*1000);
bufferI[0] = 0; // Report ID
if (block) {
res = hid_read(device, bufferI, n+1); // +1 byte for report ID
}
else {
res = hid_read_timeout(device, bufferI, n+1, t); // +1 byte for report ID
}
if (res == -1) {
fprintf(stderr, "Read failed\n");
hid_close(device);
hid_exit();
return 1;
}
if (res == 0) {
printf("No data read within timeout.\n");
}
else {
if (v) printf("Read %d bytes.\n", res);
if (!q) {
printf("<- ");
for (i=0; i<n; i++) printf("%02X ", bufferI[i]);
printf("\n");
}
}
}
return 0;
}
int FindDevice(){
if (!(device = hid_open(vid, pid, NULL))) {
printf("Can't find device\n");
return -1;
}
printf("Device opened successfully.\n");
return 0;
}