159 lines
3.4 KiB
C
159 lines
3.4 KiB
C
/*
|
|
* Industrial I/O utilities - lsiio.c
|
|
*
|
|
* Copyright (c) 2010 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published by
|
|
* the Free Software Foundation.
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <dirent.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/dir.h>
|
|
#include "iio_utils.h"
|
|
|
|
|
|
static enum verbosity {
|
|
VERBLEVEL_DEFAULT, /* 0 gives lspci behaviour */
|
|
VERBLEVEL_SENSORS, /* 1 lists sensors */
|
|
} verblevel = VERBLEVEL_DEFAULT;
|
|
|
|
const char *type_device = "iio:device";
|
|
const char *type_trigger = "trigger";
|
|
|
|
|
|
static inline int check_prefix(const char *str, const char *prefix)
|
|
{
|
|
return strlen(str) > strlen(prefix) &&
|
|
strncmp(str, prefix, strlen(prefix)) == 0;
|
|
}
|
|
|
|
static inline int check_postfix(const char *str, const char *postfix)
|
|
{
|
|
return strlen(str) > strlen(postfix) &&
|
|
strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
|
|
}
|
|
|
|
static int dump_channels(const char *dev_dir_name)
|
|
{
|
|
DIR *dp;
|
|
const struct dirent *ent;
|
|
|
|
dp = opendir(dev_dir_name);
|
|
if (dp == NULL)
|
|
return -errno;
|
|
while (ent = readdir(dp), ent != NULL)
|
|
if (check_prefix(ent->d_name, "in_") &&
|
|
check_postfix(ent->d_name, "_raw")) {
|
|
printf(" %-10s\n", ent->d_name);
|
|
}
|
|
|
|
return (closedir(dp) == -1) ? -errno : 0;
|
|
}
|
|
|
|
static int dump_one_device(const char *dev_dir_name)
|
|
{
|
|
char name[IIO_MAX_NAME_LENGTH];
|
|
int dev_idx;
|
|
int retval;
|
|
|
|
retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device),
|
|
"%i", &dev_idx);
|
|
if (retval != 1)
|
|
return -EINVAL;
|
|
read_sysfs_string("name", dev_dir_name, name);
|
|
printf("Device %03d: %s\n", dev_idx, name);
|
|
|
|
if (verblevel >= VERBLEVEL_SENSORS)
|
|
return dump_channels(dev_dir_name);
|
|
return 0;
|
|
}
|
|
|
|
static int dump_one_trigger(const char *dev_dir_name)
|
|
{
|
|
char name[IIO_MAX_NAME_LENGTH];
|
|
int dev_idx;
|
|
int retval;
|
|
|
|
retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger),
|
|
"%i", &dev_idx);
|
|
if (retval != 1)
|
|
return -EINVAL;
|
|
read_sysfs_string("name", dev_dir_name, name);
|
|
printf("Trigger %03d: %s\n", dev_idx, name);
|
|
return 0;
|
|
}
|
|
|
|
static void dump_devices(void)
|
|
{
|
|
const struct dirent *ent;
|
|
DIR *dp;
|
|
|
|
dp = opendir(iio_dir);
|
|
if (dp == NULL) {
|
|
printf("No industrial I/O devices available\n");
|
|
return;
|
|
}
|
|
|
|
while (ent = readdir(dp), ent != NULL) {
|
|
if (check_prefix(ent->d_name, type_device)) {
|
|
char *dev_dir_name;
|
|
|
|
asprintf(&dev_dir_name, "%s%s", iio_dir, ent->d_name);
|
|
dump_one_device(dev_dir_name);
|
|
free(dev_dir_name);
|
|
if (verblevel >= VERBLEVEL_SENSORS)
|
|
printf("\n");
|
|
}
|
|
}
|
|
rewinddir(dp);
|
|
while (ent = readdir(dp), ent != NULL) {
|
|
if (check_prefix(ent->d_name, type_trigger)) {
|
|
char *dev_dir_name;
|
|
|
|
asprintf(&dev_dir_name, "%s%s", iio_dir, ent->d_name);
|
|
dump_one_trigger(dev_dir_name);
|
|
free(dev_dir_name);
|
|
}
|
|
}
|
|
closedir(dp);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int c, err = 0;
|
|
|
|
while ((c = getopt(argc, argv, "d:D:v")) != EOF) {
|
|
switch (c) {
|
|
case 'v':
|
|
verblevel++;
|
|
break;
|
|
|
|
case '?':
|
|
default:
|
|
err++;
|
|
break;
|
|
}
|
|
}
|
|
if (err || argc > optind) {
|
|
fprintf(stderr, "Usage: lsiio [options]...\n"
|
|
"List industrial I/O devices\n"
|
|
" -v, --verbose\n"
|
|
" Increase verbosity (may be given multiple times)\n"
|
|
);
|
|
exit(1);
|
|
}
|
|
|
|
dump_devices();
|
|
|
|
return 0;
|
|
}
|