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 #include <linux/hid.h>
19 #include <linux/types.h>
20
21 struct hidraw_report_descriptor {
22 __u32 size;
23 __u8 value[HID_MAX_DESCRIPTOR_SIZE];
24 };
25
26 struct hidraw_devinfo {
27 __u32 bustype;
28 __s16 vendor;
29 __s16 product;
30 };
31
32 /* ioctl interface */
33 #define HIDIOCGRDESCSIZE _IOR('H', 0x01, int)
34 #define HIDIOCGRDESC _IOR('H', 0x02, struct hidraw_report_descriptor)
35 #define HIDIOCGRAWINFO _IOR('H', 0x03, struct hidraw_devinfo)
36 #define HIDIOCGRAWNAME(len) _IOC(_IOC_READ, 'H', 0x04, len)
37 #define HIDIOCGRAWPHYS(len) _IOC(_IOC_READ, 'H', 0x05, len)
38
39 #define HIDRAW_FIRST_MINOR 0
40 #define HIDRAW_MAX_DEVICES 64
41 /* number of reports to buffer */
42 #define HIDRAW_BUFFER_SIZE 64
43
44
45 /* kernel-only API declarations */
46 #ifdef __KERNEL__
47
48 struct hidraw {
49 unsigned int minor;
50 int exist;
51 int open;
52 wait_queue_head_t wait;
53 struct hid_device *hid;
54 struct device *dev;
55 struct list_head list;
56 };
57
58 struct hidraw_report {
59 __u8 *value;
60 int len;
61 };
62
63 struct hidraw_list {
64 struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
65 int head;
66 int tail;
67 struct fasync_struct *fasync;
68 struct hidraw *hidraw;
69 struct list_head node;
70 struct mutex read_mutex;
71 };
72
73 #ifdef CONFIG_HIDRAW
74 int hidraw_init(void);
75 void hidraw_exit(void);
76 void hidraw_report_event(struct hid_device *, u8 *, int);
77 int hidraw_connect(struct hid_device *);
78 void hidraw_disconnect(struct hid_device *);
79 #else
hidraw_init(void)80 static inline int hidraw_init(void) { return 0; }
hidraw_exit(void)81 static inline void hidraw_exit(void) { }
hidraw_report_event(struct hid_device * hid,u8 * data,int len)82 static inline void hidraw_report_event(struct hid_device *hid, u8 *data, int len) { }
hidraw_connect(struct hid_device * hid)83 static inline int hidraw_connect(struct hid_device *hid) { return -1; }
hidraw_disconnect(struct hid_device * hid)84 static inline void hidraw_disconnect(struct hid_device *hid) { }
85 #endif
86
87 #endif
88
89 #endif
90