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Simple PCIe FMC carrier SPEC - Software
Commit 0af71323 authored by Alessandro Rubini's avatar Alessandro Rubini
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tools/wr-dio-cmd.c: pulse time can be fractional 

Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent 6534d006
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Showing with 29 additions and 7 deletions
tools/wr-dio-cmd.c
View file @ 0af71323
......@@ -26,7 +26,8 @@ struct wr_dio_cmd *cmd = &_cmd;
static int scan_pulse(int argc, char **argv)
{
unsigned long frac_ns;
int n;
char *s;
int i, n;
if (argc != 4) {
fprintf(stderr, "%s: %s: wrong number of arguments\n",
......@@ -50,9 +51,9 @@ static int scan_pulse(int argc, char **argv)
n = 9;
argv[2][10] = '\0';
}
if (sscanf(argv[2], ".%ld%c", &frac_ns, &c) < 1) {
fprintf(stderr, "%s: %s: not a fraction \"%s\"\n",
prgname, argv[0], argv[2]);
if (sscanf(argv[2], ".%ld%c", &frac_ns, &c) != 1) {
fprintf(stderr, "%s: %s: not a fraction \"%s\" (please use "
"leading dot)\n", prgname, argv[0], argv[2]);
return -1;
}
while (n < 9) {
......@@ -63,11 +64,32 @@ static int scan_pulse(int argc, char **argv)
cmd->t[1].tv_nsec = frac_ns;
/* Same problem with the time. But now it's integer only (FIXME) */
sscanf(argv[3], "%ld", &cmd->t[0].tv_sec);
if (argv[3][0] == '+')
cmd->flags |= WR_DIO_F_REL;
frac_ns = 0;
if (!strcmp(argv[3], "now"))
cmd->flags |= WR_DIO_F_NOW;
i = sscanf(argv[3], "%ld.%ld%c", &cmd->t[0].tv_sec, &frac_ns, &c);
if (i != 1 && i != 2 && !(cmd->flags & WR_DIO_F_NOW)) {
fprintf(stderr, "%s: %s: not a time value \"%s\"\n",
prgname, argv[0], argv[3]);
return -1;
}
if (i == 2) {
/* FIXME: factorize this scanning of fractions */
s = strchr(argv[3], '.') + 1;
n = strlen(s);
if (n > 9) {
n = 9;
s[9] = '\0';
}
while (n < 9) {
frac_ns *= 10;
n++;
}
}
cmd->t[0].tv_nsec = frac_ns;
if (argv[3][0] == '+')
cmd->flags |= WR_DIO_F_REL;
ifr.ifr_data = (void *)cmd;
if (ioctl(sock, PRIV_MEZZANINE_CMD, &ifr) < 0) {
......
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