2 * Copyright © 2014 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
33 #include "ao-verbose.h"
35 static const struct option options[] = {
36 { .name = "tty", .has_arg = 1, .val = 'T' },
37 { .name = "device", .has_arg = 1, .val = 'D' },
38 { .name = "verbose", .has_arg = 0, .val = 'v' },
42 static void usage(char *program)
44 fprintf(stderr, "usage: %s [--verbose] [--device=<AltOS-device>] [-tty=<tty>] [<kbytes>]\n", program);
49 done(struct cc_usb *cc, int code)
56 main (int argc, char **argv)
62 struct cc_usb *cc = NULL;
66 int kbytes = 0; /* 0 == continuous */
70 while ((c = getopt_long(argc, argv, "vT:D:", options, NULL)) != -1) {
88 kbytes = atoi(argv[optind]);
93 ccdbg_add_debug(CC_DEBUG_BITBANG);
96 tty = cc_usbdevs_find_by_arg(device, "usbtrng");
98 tty = getenv("ALTOS_TTY");
102 cc = cc_usb_open(tty);
108 cc_usb_printf(cc, "f %d\n", kbytes);
111 for (i = 0; i < 1024; i++)
112 bits[i] = cc_usb_getchar(cc);
113 write(1, bits, 1024);
115 } else { /* 0 == continuous */
117 while (written >= 0) {
118 cc_usb_printf(cc, "f 1\n");
119 for (i = 0; i < 1024; i++)
120 bits[i] = cc_usb_getchar(cc);
121 written = write(1, bits, 1024);