diff options
| -rw-r--r-- | ao-tools/ao-usbtrng/ao-usbtrng.1 | 20 | ||||
| -rw-r--r-- | ao-tools/ao-usbtrng/ao-usbtrng.c | 44 |
2 files changed, 32 insertions, 32 deletions
diff --git a/ao-tools/ao-usbtrng/ao-usbtrng.1 b/ao-tools/ao-usbtrng/ao-usbtrng.1 index b4a3e5ec..eabdd8a1 100644 --- a/ao-tools/ao-usbtrng/ao-usbtrng.1 +++ b/ao-tools/ao-usbtrng/ao-usbtrng.1 @@ -20,24 +20,24 @@ .SH NAME ao-usbtrng \- dump random numbers from USBtrng .SH SYNOPSIS -.B "ao-usbtrng" -[\-T \fItty-device\fP] -[\--tty \fItty-device\fP] -[\-D \fIaltos-device\fP] -[\--device \fIaltos-device\fP] -\fIkbytes\fP +.B "ao-usbtrng" [OPTION...] [KBYTES] .SH DESCRIPTION .I ao-usbtrng -dumps random numbers from a USBtrng device +dumps random numbers from a USBtrng device. If provided KBYTES specifies the number of 1024 byte blocks to produce on standard output. Without KBYTES +.I ao-usbtrng +produces random bytes continuously until killed. .SH OPTIONS .TP -\-T tty-device | --tty tty-device +\-v, --verbose +increase verbosity +.TP +\-T, -tty=TTYDEVICE This selects which tty device the debugger uses to communicate with the target device. The special name 'BITBANG' directs ao-dbg to use the cp2103 connection, otherwise this should be a usb serial port connected to a suitable cc1111 debug node. .TP -\-D AltOS-device | --device AltOS-device +\-D, --device=ALTOSDEVICE Search for a connected device. This requires an argument of one of the following forms: .IP @@ -52,7 +52,7 @@ product, leaving out the serial number will cause the tool to match one of the available devices. .SH USAGE .I ao-usbtrng -opens the target device and reads the specified number of kbytes of +opens the target device and reads the specified number of KBYTES of random data. .SH AUTHOR Keith Packard diff --git a/ao-tools/ao-usbtrng/ao-usbtrng.c b/ao-tools/ao-usbtrng/ao-usbtrng.c index 232f4e3e..456885d9 100644 --- a/ao-tools/ao-usbtrng/ao-usbtrng.c +++ b/ao-tools/ao-usbtrng/ao-usbtrng.c @@ -35,14 +35,13 @@ static const struct option options[] = { { .name = "tty", .has_arg = 1, .val = 'T' }, { .name = "device", .has_arg = 1, .val = 'D' }, - { .name = "raw", .has_arg = 0, .val = 'r' }, - { .name = "verbose", .has_arg = 1, .val = 'v' }, + { .name = "verbose", .has_arg = 0, .val = 'v' }, { 0, 0, 0, 0}, }; static void usage(char *program) { - fprintf(stderr, "usage: %s [--verbose=<verbose>] [--device=<device>] [-tty=<tty>] <kbytes>\n", program); + fprintf(stderr, "usage: %s [--verbose] [--device=<AltOS-device>] [-tty=<tty>] [<kbytes>]\n", program); exit(1); } @@ -58,21 +57,17 @@ main (int argc, char **argv) { char *device = NULL; char *filename; - Elf *e; - unsigned int s; int i; int c; - int tries; struct cc_usb *cc = NULL; char *tty = NULL; - int success; int verbose = 0; int ret = 0; - int expected_size; - int kbytes; + int kbytes = 0; /* 0 == continuous */ + int written; uint8_t bits[1024]; - while ((c = getopt_long(argc, argv, "rT:D:c:s:v:", options, NULL)) != -1) { + while ((c = getopt_long(argc, argv, "vT:D:", options, NULL)) != -1) { switch (c) { case 'T': tty = optarg; @@ -89,12 +84,8 @@ main (int argc, char **argv) } } - if (!argv[optind]) - usage(argv[0]); - - kbytes = atoi(argv[optind]); - if (kbytes < 1) - kbytes = 1; + if (optind < argc) + kbytes = atoi(argv[optind]); ao_verbose = verbose; @@ -113,13 +104,22 @@ main (int argc, char **argv) if (!cc) exit(1); - cc_usb_printf(cc, "f %d\n", kbytes); + if (kbytes) { + cc_usb_printf(cc, "f %d\n", kbytes); - while (kbytes--) { - int i; - for (i = 0; i < 1024; i++) - bits[i] = cc_usb_getchar(cc); - write(1, bits, 1024); + while (kbytes--) { + for (i = 0; i < 1024; i++) + bits[i] = cc_usb_getchar(cc); + write(1, bits, 1024); + } + } else { /* 0 == continuous */ + written = 0; + while (written >= 0) { + cc_usb_printf(cc, "f 1\n"); + for (i = 0; i < 1024; i++) + bits[i] = cc_usb_getchar(cc); + written = write(1, bits, 1024); + } } done(cc, ret); |