216 lines
4.3 KiB
C
216 lines
4.3 KiB
C
/*
|
|
* osmo-fl2k, turns FL2000-based USB 3.0 to VGA adapters into
|
|
* low cost DACs
|
|
*
|
|
* Copyright (C) 2016-2018 by Steve Markgraf <steve@steve-m.de>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#ifndef _WIN32
|
|
#include <unistd.h>
|
|
#define sleep_ms(ms) usleep(ms*1000)
|
|
#else
|
|
#include <windows.h>
|
|
#include <io.h>
|
|
#include <fcntl.h>
|
|
#include "getopt/getopt.h"
|
|
#define sleep_ms(ms) Sleep(ms)
|
|
#endif
|
|
|
|
#include "osmo-fl2k.h"
|
|
|
|
static fl2k_dev_t *dev = NULL;
|
|
|
|
static volatile int do_exit = 0;
|
|
static volatile int repeat = 1;
|
|
FILE *file;
|
|
char *txbuf = NULL;
|
|
|
|
void usage(void)
|
|
{
|
|
fprintf(stderr,
|
|
"fl2k_file, a sample player for FL2K VGA dongles\n\n"
|
|
"Usage:\n"
|
|
"\t[-d device_index (default: 0)]\n"
|
|
"\t[-r repeat file (default: 1)]\n"
|
|
"\t[-s samplerate (default: 100 MS/s)]\n"
|
|
"\tfilename (use '-' to read from stdin)\n\n"
|
|
);
|
|
exit(1);
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
BOOL WINAPI
|
|
sighandler(int signum)
|
|
{
|
|
if (CTRL_C_EVENT == signum) {
|
|
fprintf(stderr, "Signal caught, exiting!\n");
|
|
fl2k_stop_tx(dev);
|
|
do_exit = 1;
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
#else
|
|
static void sighandler(int signum)
|
|
{
|
|
fprintf(stderr, "Signal caught, exiting!\n");
|
|
fl2k_stop_tx(dev);
|
|
do_exit = 1;
|
|
}
|
|
#endif
|
|
|
|
void fl2k_callback(fl2k_data_info_t *data_info)
|
|
{
|
|
int r, left = FL2K_BUF_LEN;
|
|
static uint32_t repeat_cnt = 0;
|
|
|
|
if (data_info->device_error) {
|
|
fprintf(stderr, "Device error, exiting.\n");
|
|
do_exit = 1;
|
|
return;
|
|
}
|
|
|
|
data_info->sampletype_signed = 1;
|
|
data_info->r_buf = txbuf;
|
|
|
|
while (!do_exit && (left > 0)) {
|
|
r = fread(txbuf + (FL2K_BUF_LEN - left), 1, left, file);
|
|
|
|
if (ferror(file))
|
|
fprintf(stderr, "File Error\n");
|
|
|
|
if (feof(file)) {
|
|
if (repeat && (r > 0)) {
|
|
repeat_cnt++;
|
|
fprintf(stderr, "repeat %d\n", repeat_cnt);
|
|
rewind(file);
|
|
} else {
|
|
fl2k_stop_tx(dev);
|
|
do_exit = 1;
|
|
}
|
|
}
|
|
|
|
if (r > 0)
|
|
left -= r;
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
#ifndef _WIN32
|
|
struct sigaction sigact, sigign;
|
|
#endif
|
|
int r, opt, i;
|
|
uint32_t samp_rate = 100000000;
|
|
uint32_t buf_num = 0;
|
|
int dev_index = 0;
|
|
void *status;
|
|
char *filename = NULL;
|
|
|
|
while ((opt = getopt(argc, argv, "d:r:s:")) != -1) {
|
|
switch (opt) {
|
|
case 'd':
|
|
dev_index = (uint32_t)atoi(optarg);
|
|
break;
|
|
case 'r':
|
|
repeat = (int)atoi(optarg);
|
|
break;
|
|
case 's':
|
|
samp_rate = (uint32_t)atof(optarg);
|
|
break;
|
|
default:
|
|
usage();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (argc <= optind)
|
|
usage();
|
|
else
|
|
filename = argv[optind];
|
|
|
|
if (dev_index < 0)
|
|
exit(1);
|
|
|
|
if (strcmp(filename, "-") == 0) { /* Read samples from stdin */
|
|
file = stdin;
|
|
#ifdef _WIN32
|
|
_setmode(_fileno(stdin), _O_BINARY);
|
|
#endif
|
|
} else {
|
|
file = fopen(filename, "rb");
|
|
if (!file) {
|
|
fprintf(stderr, "Failed to open %s\n", filename);
|
|
return -ENOENT;
|
|
}
|
|
}
|
|
|
|
txbuf = malloc(FL2K_BUF_LEN);
|
|
if (!txbuf) {
|
|
fprintf(stderr, "malloc error!\n");
|
|
goto out;
|
|
}
|
|
|
|
fl2k_open(&dev, (uint32_t)dev_index);
|
|
if (NULL == dev) {
|
|
fprintf(stderr, "Failed to open fl2k device #%d.\n", dev_index);
|
|
goto out;
|
|
}
|
|
|
|
r = fl2k_start_tx(dev, fl2k_callback, NULL, 0);
|
|
|
|
/* Set the sample rate */
|
|
r = fl2k_set_sample_rate(dev, samp_rate);
|
|
if (r < 0)
|
|
fprintf(stderr, "WARNING: Failed to set sample rate.\n");
|
|
|
|
|
|
#ifndef _WIN32
|
|
sigact.sa_handler = sighandler;
|
|
sigemptyset(&sigact.sa_mask);
|
|
sigact.sa_flags = 0;
|
|
sigign.sa_handler = SIG_IGN;
|
|
sigaction(SIGINT, &sigact, NULL);
|
|
sigaction(SIGTERM, &sigact, NULL);
|
|
sigaction(SIGQUIT, &sigact, NULL);
|
|
sigaction(SIGPIPE, &sigign, NULL);
|
|
#else
|
|
SetConsoleCtrlHandler( (PHANDLER_ROUTINE) sighandler, TRUE );
|
|
#endif
|
|
|
|
while (!do_exit)
|
|
sleep_ms(500);
|
|
|
|
fl2k_close(dev);
|
|
|
|
out:
|
|
if (txbuf)
|
|
free(txbuf);
|
|
|
|
if (file && (file != stdin))
|
|
fclose(file);
|
|
|
|
return 0;
|
|
}
|