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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 /* The first byte of SFEATURE and GFEATURE is the report number */
39 #define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len)
40 #define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len)
41
42 #define HIDRAW_FIRST_MINOR 0
43 #define HIDRAW_MAX_DEVICES 64
44 /* number of reports to buffer */
45 #define HIDRAW_BUFFER_SIZE 64
46
47
48 /* kernel-only API declarations */
49 #ifdef __KERNEL__
50
51 struct hidraw {
52 unsigned int minor;
53 int exist;
54 int open;
55 wait_queue_head_t wait;
56 struct hid_device *hid;
57 struct device *dev;
58 struct list_head list;
59 };
60
61 struct hidraw_report {
62 __u8 *value;
63 int len;
64 };
65
66 struct hidraw_list {
67 struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
68 int head;
69 int tail;
70 struct fasync_struct *fasync;
71 struct hidraw *hidraw;
72 struct list_head node;
73 struct mutex read_mutex;
74 };
75
76 #ifdef CONFIG_HIDRAW
77 int hidraw_init(void);
78 void hidraw_exit(void);
79 int hidraw_report_event(struct hid_device *, u8 *, int);
80 int hidraw_connect(struct hid_device *);
81 void hidraw_disconnect(struct hid_device *);
82 #else
83 static inline int hidraw_init(void) { return 0; }
84 static inline void hidraw_exit(void) { }
85 static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; }
86 static inline int hidraw_connect(struct hid_device *hid) { return -1; }
87 static inline void hidraw_disconnect(struct hid_device *hid) { }
88 #endif
89
90 #endif
91
92 #endif