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86166b7b JK |
1 | #ifndef _HIDRAW_H |
2 | #define _HIDRAW_H | |
3 | ||
4 | /* | |
5 | * Copyright (c) 2007 Jiri Kosina | |
6 | */ | |
7 | ||
8 | /* | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms and conditions of the GNU General Public License, | |
11 | * version 2, as published by the Free Software Foundation. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License along with | |
14 | * this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
16 | */ | |
17 | ||
18 | struct hidraw_report_descriptor { | |
19 | __u32 size; | |
20 | __u8 *value; | |
21 | }; | |
22 | ||
23 | struct hidraw_devinfo { | |
24 | __u32 bustype; | |
25 | __s16 vendor; | |
26 | __s16 product; | |
27 | }; | |
28 | ||
29 | /* ioctl interface */ | |
30 | #define HIDIOCGRDESCSIZE _IOR('H', 0x01, int) | |
31 | #define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor) | |
32 | #define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo) | |
33 | ||
34 | #define HIDRAW_FIRST_MINOR 0 | |
35 | #define HIDRAW_MAX_DEVICES 64 | |
36 | /* number of reports to buffer */ | |
37 | #define HIDRAW_BUFFER_SIZE 64 | |
38 | ||
39 | ||
40 | /* kernel-only API declarations */ | |
41 | #ifdef __KERNEL__ | |
42 | ||
43 | #include <linux/hid.h> | |
44 | ||
45 | struct hidraw { | |
46 | unsigned int minor; | |
47 | int exist; | |
48 | int open; | |
49 | wait_queue_head_t wait; | |
50 | struct hid_device *hid; | |
51 | struct device *dev; | |
52 | struct list_head list; | |
53 | }; | |
54 | ||
55 | struct hidraw_report { | |
56 | __u8 *value; | |
57 | int len; | |
58 | }; | |
59 | ||
60 | struct hidraw_list { | |
61 | struct hidraw_report buffer[HIDRAW_BUFFER_SIZE]; | |
62 | int head; | |
63 | int tail; | |
64 | struct fasync_struct *fasync; | |
65 | struct hidraw *hidraw; | |
66 | struct list_head node; | |
67 | struct mutex read_mutex; | |
68 | }; | |
69 | ||
70 | #ifdef CONFIG_HIDRAW | |
71 | int hidraw_init(void); | |
72 | void hidraw_exit(void); | |
73 | void hidraw_report_event(struct hid_device *, u8 *, int); | |
74 | int hidraw_connect(struct hid_device *); | |
75 | void hidraw_disconnect(struct hid_device *); | |
76 | #else | |
77 | static inline int hidraw_init(void) { return 0; } | |
78 | static inline void hidraw_exit(void) { } | |
79 | static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { } | |
80 | static inline int hidraw_connect(struct hid_device *hid) { return -1; } | |
81 | static inline void hidraw_disconnect(struct hid_device *hid) { } | |
82 | #endif | |
83 | ||
84 | #endif | |
85 | ||
86 | #endif |