Commit | Line | Data |
---|---|---|
ed9eccbe DS |
1 | /* |
2 | module/proc.c | |
3 | /proc interface for comedi | |
4 | ||
5 | COMEDI - Linux Control and Measurement Device Interface | |
6 | Copyright (C) 1998 David A. Schleef <ds@schleef.org> | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
21 | ||
22 | */ | |
23 | ||
24 | /* | |
25 | This is some serious bloatware. | |
26 | ||
27 | Taken from Dave A.'s PCL-711 driver, 'cuz I thought it | |
28 | was cool. | |
29 | */ | |
30 | ||
31 | #define __NO_VERSION__ | |
32 | #include "comedidev.h" | |
dc1da7f7 | 33 | #include "comedi_fops.h" |
ed9eccbe | 34 | #include <linux/proc_fs.h> |
22d11424 | 35 | #include <linux/string.h> |
ed9eccbe | 36 | |
22d11424 GKH |
37 | #ifdef CONFIG_PROC_FS |
38 | static int comedi_read(char *buf, char **start, off_t offset, int len, | |
39 | int *eof, void *data) | |
ed9eccbe DS |
40 | { |
41 | int i; | |
42 | int devices_q = 0; | |
43 | int l = 0; | |
139dfbdf | 44 | struct comedi_driver *driv; |
ed9eccbe DS |
45 | |
46 | l += sprintf(buf + l, | |
0a85b6f0 MT |
47 | "comedi version " COMEDI_RELEASE "\n" |
48 | "format string: %s\n", | |
8e81f184 GKH |
49 | "\"%2d: %-20s %-20s %4d\", i, " |
50 | "driver_name, board_name, n_subdevices"); | |
ed9eccbe DS |
51 | |
52 | for (i = 0; i < COMEDI_NUM_BOARD_MINORS; i++) { | |
0a85b6f0 MT |
53 | struct comedi_device_file_info *dev_file_info = |
54 | comedi_get_device_file_info(i); | |
71b5f4f1 | 55 | struct comedi_device *dev; |
ed9eccbe | 56 | |
c7427409 BP |
57 | if (dev_file_info == NULL) |
58 | continue; | |
ed9eccbe DS |
59 | dev = dev_file_info->device; |
60 | ||
61 | if (dev->attached) { | |
62 | devices_q = 1; | |
63 | l += sprintf(buf + l, "%2d: %-20s %-20s %4d\n", | |
0a85b6f0 MT |
64 | i, |
65 | dev->driver->driver_name, | |
66 | dev->board_name, dev->n_subdevices); | |
ed9eccbe DS |
67 | } |
68 | } | |
82675f35 | 69 | if (!devices_q) |
ed9eccbe | 70 | l += sprintf(buf + l, "no devices\n"); |
ed9eccbe DS |
71 | |
72 | for (driv = comedi_drivers; driv; driv = driv->next) { | |
73 | l += sprintf(buf + l, "%s:\n", driv->driver_name); | |
74 | for (i = 0; i < driv->num_names; i++) { | |
75 | l += sprintf(buf + l, " %s\n", | |
0a85b6f0 MT |
76 | *(char **)((char *)driv->board_name + |
77 | i * driv->offset)); | |
ed9eccbe | 78 | } |
82675f35 | 79 | if (!driv->num_names) |
ed9eccbe | 80 | l += sprintf(buf + l, " %s\n", driv->driver_name); |
ed9eccbe DS |
81 | } |
82 | ||
83 | return l; | |
84 | } | |
85 | ||
86 | void comedi_proc_init(void) | |
87 | { | |
88 | struct proc_dir_entry *comedi_proc; | |
89 | ||
22d11424 | 90 | comedi_proc = create_proc_entry("comedi", S_IFREG | S_IRUGO, NULL); |
ed9eccbe | 91 | if (comedi_proc) |
22d11424 | 92 | comedi_proc->read_proc = comedi_read; |
ed9eccbe DS |
93 | } |
94 | ||
95 | void comedi_proc_cleanup(void) | |
96 | { | |
22d11424 | 97 | remove_proc_entry("comedi", NULL); |
ed9eccbe | 98 | } |
a8275fca | 99 | #endif |