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FMC DEL 1ns 4cha - Software
Commit 1a2f76a5 authored by Alessandro Rubini's avatar Alessandro Rubini
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tools: new dir with fd-raw-input

parent c658c47a
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Showing with 144 additions and 10 deletions
Makefile
View file @ 1a2f76a5
......@@ -9,6 +9,8 @@ ccflags-y = -I$(ZIO)/include -I$(SPEC_SW)/kernel -I$M
ccflags-y += -DDEBUG # temporary
subdirs-ccflags-y = $(ccflags-y)
obj-m := spec-fine-delay.o
spec-fine-delay-objs = fd-zio.o fd-spec.o fd-core.o
......@@ -19,3 +21,4 @@ all: modules
modules_install clean modules:
$(MAKE) -C $(LINUX) M=$(shell /bin/pwd) $@
$(MAKE) -C tools M=$(shell /bin/pwd) $@
fine-delay.h
View file @ 1a2f76a5
#ifndef __FINE_DELAY_H__
#define __FINE_DELAY_H__
/* input ZIO attributes (actually, the internal time is represented as attrs */
enum fd_zattr_in_idx {
FD_ATTR_IN_UTC_H = 0,
FD_ATTR_IN_UTC_L,
FD_ATTR_IN_COARSE,
FD_ATTR_IN_FRAC,
FD_ATTR_IN_SEQ,
FD_ATTR_IN_CHAN,
};
#ifdef __KERNEL__ /* All the rest is only of kernel users */
#include <linux/spinlock.h>
#include <linux/timer.h>
......@@ -65,16 +76,6 @@ struct fd_time {
uint16_t seq_id;
};
/* input ZIO attributes (actually, the internal time is represented as attrs */
enum fd_zattr_in_idx {
FD_ATTR_IN_UTC_H = 0,
FD_ATTR_IN_UTC_L,
FD_ATTR_IN_COARSE,
FD_ATTR_IN_FRAC,
FD_ATTR_IN_SEQ,
FD_ATTR_IN_CHAN,
};
static inline uint32_t fd_readl(struct spec_fd *fd, unsigned long reg)
{
......@@ -212,4 +213,5 @@ extern int fd_spec_init(void);
extern void fd_spec_exit(void);
#endif /* __KERNEL__ */
#endif /* __FINE_DELAY_H__ */
tools/.gitignore 0 → 100644
View file @ 1a2f76a5
fd-raw-input
tools/Makefile 0 → 100644
View file @ 1a2f76a5
# user-space tools for spec-fine-delay
HOST_EXTRACFLAGS += -I$(M) -I$(ZIO)/include -Wno-trigraphs
HOSTCC ?= gcc
hostprogs-y := fd-raw-input
# we are not in the kernel, so we need to piggy-back on "make modules"
modules: $(hostprogs-y)
clean:
rm -f $(hostprogs-y) *.o *~
# make nothing for module_install, but avoid errors
module_install:
# we need this as we are out of the kernel
%: %.c
$(HOSTCC) $(HOST_EXTRACFLAGS) -Wall $^ -o $@
tools/fd-raw-input.c 0 → 100644
View file @ 1a2f76a5
/*
* an input tools that accesses the ZIO device
*
* Copyright (C) 2012 CERN (www.cern.ch)
* Author: Alessandro Rubini <rubini@gnudd.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2 as published by the Free Software Foundation or, at your
* option, any later version.
*/
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <unistd.h>
#include <glob.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/select.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/zio.h>
#include <linux/zio-user.h>
#include <fine-delay.h>
#define MAXFD 16
struct zio_control ctrl;
int main(int argc, char **argv)
{
glob_t glob_buf;
int fd[MAXFD];
int i, j, maxfd = 0;
fd_set allset, curset;
if (argc < 2) {
/* rebuild argv using globbing */
glob_buf.gl_offs = 1;
/* "????" spits a trigraph warning: use "*" instead (bah!) */
glob("/dev/zio-fd-*-0-0-ctrl", GLOB_DOOFFS, NULL, &glob_buf);
glob("/dev/zio/zio-fd-*-0-0-ctrl",
GLOB_DOOFFS | GLOB_APPEND, NULL, &glob_buf);
glob_buf.gl_pathv[0] = argv[0];
argv = glob_buf.gl_pathv;
argc = glob_buf.gl_pathc + glob_buf.gl_offs;
}
if (argc == 1) {
fprintf(stderr, "%s: no arguments and no glob results\n",
argv[0]);
exit(1);
};
if (argc >= MAXFD) {
fprintf(stderr, "%s: too many file names\n", argv[0]);
exit(1);
};
FD_ZERO(&allset);
for (i = 1; i < argc; i++) {
fd[i] = open(argv[i], O_RDONLY);
if (fd[i] < 0) {
fprintf(stderr, "%s: %s: %s\n", argv[0], argv[1],
strerror(errno));
exit(1);
}
if (fd[i] > maxfd)
maxfd = fd[i];
FD_SET(fd[i], &allset);
}
/* Ok, now wait for each of them to spit a timestamp */
while (1) {
curset = allset;
switch(select(maxfd + 1, &curset, NULL, NULL, NULL)) {
case -1:
if (errno == EINTR)
continue;
fprintf(stderr, "%s: select: %s\n", argv[0],
strerror(errno));
exit(1);
case 0:
continue;
}
for (i = 1; i < argc; i++) {
if (!FD_ISSET(fd[i], &curset))
continue;
/* Ok, it's there: read and decode */
j = read(fd[i], &ctrl, sizeof(ctrl));
if (j != sizeof(ctrl)) {
fprintf(stderr, "%s: read(): got %i not %i\n",
argv[0], j, sizeof(ctrl));
exit(1);
}
printf("%s: %08x %08x %08x %08x %08x\n",
argv[i],
ctrl.attr_channel.ext_val[0],
ctrl.attr_channel.ext_val[1],
ctrl.attr_channel.ext_val[2],
ctrl.attr_channel.ext_val[3],
ctrl.attr_channel.ext_val[4]);
}
}
return 0;
}
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