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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; | |
49 | dp = opendir(dev_dir_name); | |
50 | if (dp == NULL) | |
51 | return -errno; | |
52 | while (ent = readdir(dp), ent != NULL) | |
53 | if (check_prefix(ent->d_name, "in_") && | |
54 | check_postfix(ent->d_name, "_raw")) { | |
55 | printf(" %-10s\n", ent->d_name); | |
56 | } | |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
61 | static int dump_one_device(const char *dev_dir_name) | |
62 | { | |
63 | char name[IIO_MAX_NAME_LENGTH]; | |
64 | int dev_idx; | |
65 | ||
66 | sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device), | |
67 | "%i", &dev_idx); | |
68 | read_sysfs_string("name", dev_dir_name, name); | |
69 | printf("Device %03d: %s\n", dev_idx, name); | |
70 | ||
71 | if (verblevel >= VERBLEVEL_SENSORS) { | |
72 | int ret = dump_channels(dev_dir_name); | |
73 | if (ret) | |
74 | return ret; | |
75 | } | |
76 | return 0; | |
77 | } | |
78 | ||
79 | static int dump_one_trigger(const char *dev_dir_name) | |
80 | { | |
81 | char name[IIO_MAX_NAME_LENGTH]; | |
82 | int dev_idx; | |
83 | ||
84 | sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger), | |
85 | "%i", &dev_idx); | |
86 | read_sysfs_string("name", dev_dir_name, name); | |
87 | printf("Trigger %03d: %s\n", dev_idx, name); | |
88 | return 0; | |
89 | } | |
90 | ||
91 | static void dump_devices(void) | |
92 | { | |
93 | const struct dirent *ent; | |
94 | int number, numstrlen; | |
95 | ||
96 | FILE *nameFile; | |
97 | DIR *dp; | |
98 | char thisname[IIO_MAX_NAME_LENGTH]; | |
99 | char *filename; | |
100 | ||
101 | dp = opendir(iio_dir); | |
102 | if (dp == NULL) { | |
103 | printf("No industrial I/O devices available\n"); | |
104 | return; | |
105 | } | |
106 | ||
107 | while (ent = readdir(dp), ent != NULL) { | |
108 | if (check_prefix(ent->d_name, type_device)) { | |
109 | char *dev_dir_name; | |
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; | |
121 | asprintf(&dev_dir_name, "%s%s", iio_dir, ent->d_name); | |
122 | dump_one_trigger(dev_dir_name); | |
123 | free(dev_dir_name); | |
124 | } | |
125 | } | |
126 | closedir(dp); | |
127 | } | |
128 | ||
129 | int main(int argc, char **argv) | |
130 | { | |
131 | int c, err = 0; | |
132 | ||
133 | while ((c = getopt(argc, argv, "d:D:v")) != EOF) { | |
134 | switch (c) { | |
135 | case 'v': | |
136 | verblevel++; | |
137 | break; | |
138 | ||
139 | case '?': | |
140 | default: | |
141 | err++; | |
142 | break; | |
143 | } | |
144 | } | |
145 | if (err || argc > optind) { | |
146 | fprintf(stderr, "Usage: lsiio [options]...\n" | |
147 | "List industrial I/O devices\n" | |
148 | " -v, --verbose\n" | |
149 | " Increase verbosity (may be given multiple times)\n" | |
150 | ); | |
151 | exit(1); | |
152 | } | |
153 | ||
154 | dump_devices(); | |
155 | ||
156 | return 0; | |
157 | } |