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FMC DEL 1ns 4cha - Software
Commit 46d05c91 authored by Alessandro Rubini's avatar Alessandro Rubini
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tools: add fmc-fdelay-board-time 

Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent 6b40ded5
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Showing with 198 additions and 4 deletions
doc/fine-delay.in
View file @ 46d05c91
...@@ -952,7 +952,9 @@ boards in the current system: ...@@ -952,7 +952,9 @@ boards in the current system:
@section fmc-fdelay-term @section fmc-fdelay-term
The command can be used to activate or deactivate the 50 ohm The command can be used to activate or deactivate the 50 ohm
termination resistor. In addition to the @t{-i} or @t{-d} termination resistor.
In addition to the @t{-i} or @t{-d}
arguments, mandatory if more than one board is found on the arguments, mandatory if more than one board is found on the
host system, the command receives one mandatory argument, either host system, the command receives one mandatory argument, either
@t{1} (activate termination) or @t{0} (deactivate termination). @t{1} (activate termination) or @t{0} (deactivate termination).
...@@ -962,6 +964,49 @@ host system, the command receives one mandatory argument, either ...@@ -962,6 +964,49 @@ host system, the command receives one mandatory argument, either
./tools/fmc-fdelay-term: termination is on ./tools/fmc-fdelay-term: termination is on
@end smallexample @end smallexample
@c ==========================================================================
@node fmc-fdelay-board-time
@section fmc-fdelay-board-time
The command is used to act on the time notion of the @sc{fine-delay} card.
In addition to the @t{-i} or @t{-d}
arguments, mandatory if more than one board is found on the
host system, the command receives one mandatory argument, that is
either a command or a floating point number. The number is the
time, in seconds, to be set in the card; the command is one of
the following ones:
@table @code
@item get
Read board time and print to @i{stdout}.
@item host
Set board time from host time
@item wr
Lock the boards to White Rabbit time. It may block if no White
Rabbit is there. No timeout is currently available.
@item local
Detach the board from White Rabbit, and run local time instead.
@end table
Examples:
@smallexample
spusa# ./lib/fdelay-board-time 25.5; ./lib/fdelay-board-time get
25.504007360
spusa# ./lib/fdelay-board-time get
34.111048968
spusa# ./lib/fdelay-board-time host
spusa# ./lib/fdelay-board-time get
1335974946.493415600
@end smallexample
@c ########################################################################## @c ##########################################################################
@node Troubleshooting @node Troubleshooting
......
lib/.gitignore
View file @ 46d05c91
*.a *.a
.depend .depend
fdelay-board-time
fdelay-read fdelay-read
fdelay-fread fdelay-fread
fdelay-pulse fdelay-pulse
......
lib/Makefile
View file @ 46d05c91
...@@ -10,7 +10,6 @@ CFLAGS = -Wall -ggdb -O2 -I../kernel -I../zio/include ...@@ -10,7 +10,6 @@ CFLAGS = -Wall -ggdb -O2 -I../kernel -I../zio/include
LDFLAGS = -L. -lfdelay LDFLAGS = -L. -lfdelay
DEMOSRC := DEMOSRC :=
DEMOSRC += fdelay-board-time.c
DEMOSRC += fdelay-read.c DEMOSRC += fdelay-read.c
DEMOSRC += fdelay-fread.c DEMOSRC += fdelay-fread.c
DEMOSRC += fdelay-pulse.c DEMOSRC += fdelay-pulse.c
......
oldtools/.gitignore
View file @ 46d05c91
...@@ -5,4 +5,5 @@ fd-raw-settime ...@@ -5,4 +5,5 @@ fd-raw-settime
fd-raw-output fd-raw-output
fd-raw-perf fd-raw-perf
fdelay-list fdelay-list
fdelay-term fdelay-term
\ No newline at end of file fdelay-board-time
oldtools/Makefile
View file @ 46d05c91
...@@ -16,6 +16,7 @@ hostprogs-y += fd-raw-perf ...@@ -16,6 +16,7 @@ hostprogs-y += fd-raw-perf
# programs that used to live in lib/ # programs that used to live in lib/
hostprogs-y += fdelay-list hostprogs-y += fdelay-list
hostprogs-y += fdelay-term hostprogs-y += fdelay-term
hostprogs-y += fdelay-board-time
# we are not in the kernel, so we need to piggy-back on "make modules" # we are not in the kernel, so we need to piggy-back on "make modules"
......
tools/.gitignore
View file @ 46d05c91
fmc-fdelay-list fmc-fdelay-list
fmc-fdelay-term fmc-fdelay-term
fmc-fdelay-board-time
tools/Makefile
View file @ 46d05c91
...@@ -8,6 +8,7 @@ HOSTCC ?= gcc ...@@ -8,6 +8,7 @@ HOSTCC ?= gcc
hostprogs-y := fmc-fdelay-list hostprogs-y := fmc-fdelay-list
hostprogs-y += fmc-fdelay-term hostprogs-y += fmc-fdelay-term
hostprogs-y += fmc-fdelay-board-time
# we are not in the kernel, so we need to piggy-back on "make modules" # we are not in the kernel, so we need to piggy-back on "make modules"
all modules: $(hostprogs-y) all modules: $(hostprogs-y)
......
tools/fmc-fdelay-board-time.c 0 → 100644
View file @ 46d05c91
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include "fdelay-lib.h"
#include "tools-common.h"
int main(int argc, char **argv)
{
struct fdelay_board *b;
struct fdelay_time t;
int nboards, i, get = 0, host = 0, wr_on = 0, wr_off = 0;
int index = -1, dev = -1;
char *s;
/* Standard part of the file (repeated code) */
nboards = fdelay_init();
if (nboards < 0) {
fprintf(stderr, "%s: fdelay_init(): %s\n", argv[0],
strerror(errno));
exit(1);
}
if (nboards == 0) {
fprintf(stderr, "%s: no boards found\n", argv[0]);
exit(1);
}
if (nboards == 1)
index = 0; /* so it works with no arguments */
tools_getopt_d_i(argc, argv, &dev, &index);
if (index < 0 && dev < 0) {
fprintf(stderr, "%s: several boards, please pass -i or -d\n",
argv[0]);
exit(1);
}
/* Parse the mandatory extra argument */
if (optind != argc - 1) {
fprintf(stderr, "%s: Use \"%s [-i <index>] [-d <dev>] <cmd>\"\n",
argv[0], argv[0]);
fprintf(stderr, " cmd is one of \"get\", \"host\", "
"\"local\", \"wr\" or a floating point time in secs\n");
exit(1);
}
s = argv[optind];
/* Crappy parser */
if (!strcmp(s, "get"))
get = 1;
else if (!strcmp(s, "host"))
host = 1;
else if (!strcmp(s, "wr"))
wr_on = 1;
else if (!strcmp(s, "local"))
wr_off = 1;
else {
double nano;
long long sec;
memset(&t, 0, sizeof(t));
i = sscanf(s, "%lli%lf\n", &sec, &nano);
if (i < 1) {
fprintf(stderr, "%s: Not a number \"%s\"\n",
argv[0], s);
exit(1);
}
t.utc = sec;
t.coarse = nano * 1000 * 1000 * 1000 / 8;
}
b = fdelay_open(index, dev);
if (!b) {
fprintf(stderr, "%s: fdelay_open(): %s\n", argv[0],
strerror(errno));
exit(1);
}
if (get) {
if (fdelay_get_time(b, &t) < 0) {
fprintf(stderr, "%s: fdelay_get_time(): %s\n", argv[0],
strerror(errno));
exit(1);
}
printf("%lli.%09li\n", (long long)t.utc, (long)t.coarse * 8);
fdelay_close(b);
fdelay_exit();
return 0;
}
if (host) {
if (fdelay_set_host_time(b) < 0) {
fprintf(stderr, "%s: fdelay_set_host_time(): %s\n",
argv[0], strerror(errno));
exit(1);
}
fdelay_close(b);
fdelay_exit();
return 0;
}
if (wr_on) {
setbuf(stdout, NULL);
printf("Locking the card to WR: ");
if (fdelay_wr_mode(b, 1) < 0) {
fprintf(stderr, "%s: fdelay_wr_mode(): %s\n",
argv[0], strerror(errno));
exit(1);
}
while (fdelay_check_wr_mode(b) != 0) {
printf(".");
sleep(1);
}
printf(" locked!\n");
fdelay_close(b);
fdelay_exit();
return 0;
}
if (wr_off) {
if (fdelay_wr_mode(b, 0) < 0) {
fprintf(stderr, "%s: fdelay_wr_mode(): %s\n",
argv[0], strerror(errno));
exit(1);
}
fdelay_close(b);
fdelay_exit();
return 0;
}
if (fdelay_set_time(b, &t) < 0) {
fprintf(stderr, "%s: fdelay_set_host_time(): %s\n",
argv[0], strerror(errno));
exit(1);
}
fdelay_close(b);
fdelay_exit();
return 0;
}
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