Commit | Line | Data |
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6ca27334 DS |
1 | /* |
2 | module/8255.h | |
3 | Header file for 8255 | |
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 | #ifndef _8255_H | |
25 | #define _8255_H | |
26 | ||
27 | #include "../comedidev.h" | |
28 | ||
29 | #if defined(CONFIG_COMEDI_8255) || defined(CONFIG_COMEDI_8255_MODULE) | |
30 | ||
31 | int subdev_8255_init(comedi_device * dev, comedi_subdevice * s, | |
32 | int (*cb) (int, int, int, unsigned long), unsigned long arg); | |
33 | int subdev_8255_init_irq(comedi_device * dev, comedi_subdevice * s, | |
34 | int (*cb) (int, int, int, unsigned long), unsigned long arg); | |
35 | void subdev_8255_cleanup(comedi_device * dev, comedi_subdevice * s); | |
36 | void subdev_8255_interrupt(comedi_device * dev, comedi_subdevice * s); | |
37 | ||
38 | #else | |
39 | ||
40 | static inline int subdev_8255_init(comedi_device * dev, comedi_subdevice * s, | |
41 | void *x, unsigned long y) | |
42 | { | |
43 | printk("8255 support not configured -- disabling subdevice\n"); | |
44 | ||
45 | s->type = COMEDI_SUBD_UNUSED; | |
46 | ||
47 | return 0; | |
48 | } | |
49 | ||
50 | static inline void subdev_8255_cleanup(comedi_device * dev, | |
51 | comedi_subdevice * s) | |
52 | { | |
53 | } | |
54 | ||
55 | #endif | |
56 | ||
57 | #endif |