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Commit | Line | Data |
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49d916ec MS |
1 | /* |
2 | * Industrial I/O utilities - lsiio.c | |
3 | * | |
4 | * Copyright (c) 2010 Manuel Stahl <manuel.stahl@iis.fraunhofer.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License version 2 as published by | |
8 | * the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <string.h> | |
12 | #include <dirent.h> | |
13 | #include <stdio.h> | |
14 | #include <errno.h> | |
15 | #include <stdint.h> | |
16 | #include <stdlib.h> | |
17 | #include <unistd.h> | |
18 | #include <sys/types.h> | |
19 | #include <sys/stat.h> | |
20 | #include <sys/dir.h> | |
21 | #include "iio_utils.h" | |
22 | ||
23 | ||
24 | static enum verbosity { | |
25 | VERBLEVEL_DEFAULT, /* 0 gives lspci behaviour */ | |
26 | VERBLEVEL_SENSORS, /* 1 lists sensors */ | |
27 | } verblevel = VERBLEVEL_DEFAULT; | |
28 | ||
29 | const char *type_device = "iio:device"; | |
30 | const char *type_trigger = "trigger"; | |
31 | ||
32 | ||
33 | static inline int check_prefix(const char *str, const char *prefix) | |
34 | { | |
35 | return strlen(str) > strlen(prefix) && | |
36 | strncmp(str, prefix, strlen(prefix)) == 0; | |
37 | } | |
38 | ||
39 | static inline int check_postfix(const char *str, const char *postfix) | |
40 | { | |
41 | return strlen(str) > strlen(postfix) && | |
42 | strcmp(str + strlen(str) - strlen(postfix), postfix) == 0; | |
43 | } | |
44 | ||
45 | static int dump_channels(const char *dev_dir_name) | |
46 | { | |
47 | DIR *dp; | |
48 | const struct dirent *ent; | |
d1e50413 | 49 | |
49d916ec MS |
50 | dp = opendir(dev_dir_name); |
51 | if (dp == NULL) | |
52 | return -errno; | |
53 | while (ent = readdir(dp), ent != NULL) | |
54 | if (check_prefix(ent->d_name, "in_") && | |
55 | check_postfix(ent->d_name, "_raw")) { | |
56 | printf(" %-10s\n", ent->d_name); | |
57 | } | |
58 | ||
59 | return 0; | |
60 | } | |
61 | ||
62 | static int dump_one_device(const char *dev_dir_name) | |
63 | { | |
64 | char name[IIO_MAX_NAME_LENGTH]; | |
65 | int dev_idx; | |
d0e68ce1 | 66 | int retval; |
49d916ec | 67 | |
d0e68ce1 | 68 | retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device), |
49d916ec | 69 | "%i", &dev_idx); |
d0e68ce1 HS |
70 | if (retval != 1) |
71 | return -EINVAL; | |
49d916ec MS |
72 | read_sysfs_string("name", dev_dir_name, name); |
73 | printf("Device %03d: %s\n", dev_idx, name); | |
74 | ||
edead9b1 HS |
75 | if (verblevel >= VERBLEVEL_SENSORS) |
76 | return dump_channels(dev_dir_name); | |
49d916ec MS |
77 | return 0; |
78 | } | |
79 | ||
80 | static int dump_one_trigger(const char *dev_dir_name) | |
81 | { | |
82 | char name[IIO_MAX_NAME_LENGTH]; | |
83 | int dev_idx; | |
d0e68ce1 | 84 | int retval; |
49d916ec | 85 | |
d0e68ce1 | 86 | retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger), |
49d916ec | 87 | "%i", &dev_idx); |
d0e68ce1 HS |
88 | if (retval != 1) |
89 | return -EINVAL; | |
49d916ec MS |
90 | read_sysfs_string("name", dev_dir_name, name); |
91 | printf("Trigger %03d: %s\n", dev_idx, name); | |
92 | return 0; | |
93 | } | |
94 | ||
95 | static void dump_devices(void) | |
96 | { | |
97 | const struct dirent *ent; | |
49d916ec | 98 | DIR *dp; |
49d916ec MS |
99 | |
100 | dp = opendir(iio_dir); | |
101 | if (dp == NULL) { | |
102 | printf("No industrial I/O devices available\n"); | |
103 | return; | |
104 | } | |
105 | ||
106 | while (ent = readdir(dp), ent != NULL) { | |
107 | if (check_prefix(ent->d_name, type_device)) { | |
108 | char *dev_dir_name; | |
d1e50413 | 109 | |
49d916ec MS |
110 | asprintf(&dev_dir_name, "%s%s", iio_dir, ent->d_name); |
111 | dump_one_device(dev_dir_name); | |
112 | free(dev_dir_name); | |
113 | if (verblevel >= VERBLEVEL_SENSORS) | |
114 | printf("\n"); | |
115 | } | |
116 | } | |
117 | rewinddir(dp); | |
118 | while (ent = readdir(dp), ent != NULL) { | |
119 | if (check_prefix(ent->d_name, type_trigger)) { | |
120 | char *dev_dir_name; | |
d1e50413 | 121 | |
49d916ec MS |
122 | asprintf(&dev_dir_name, "%s%s", iio_dir, ent->d_name); |
123 | dump_one_trigger(dev_dir_name); | |
124 | free(dev_dir_name); | |
125 | } | |
126 | } | |
127 | closedir(dp); | |
128 | } | |
129 | ||
130 | int main(int argc, char **argv) | |
131 | { | |
132 | int c, err = 0; | |
133 | ||
134 | while ((c = getopt(argc, argv, "d:D:v")) != EOF) { | |
135 | switch (c) { | |
136 | case 'v': | |
137 | verblevel++; | |
138 | break; | |
139 | ||
140 | case '?': | |
141 | default: | |
142 | err++; | |
143 | break; | |
144 | } | |
145 | } | |
146 | if (err || argc > optind) { | |
147 | fprintf(stderr, "Usage: lsiio [options]...\n" | |
148 | "List industrial I/O devices\n" | |
149 | " -v, --verbose\n" | |
150 | " Increase verbosity (may be given multiple times)\n" | |
151 | ); | |
152 | exit(1); | |
153 | } | |
154 | ||
155 | dump_devices(); | |
156 | ||
157 | return 0; | |
158 | } |