1/* SPDX-License-Identifier: GPL-2.0-only */
 
 
 2/*
 3 *  Copyright (c) 2007 Jiri Kosina
 4 */
 5#ifndef _HIDRAW_H
 6#define _HIDRAW_H
 7
 8#include <uapi/linux/hidraw.h>
 
 
 
 
 
 
 
 
 9
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10
11struct hidraw {
12	unsigned int minor;
13	int exist;
14	int open;
15	wait_queue_head_t wait;
16	struct hid_device *hid;
17	struct device *dev;
18	spinlock_t list_lock;
19	struct list_head list;
20};
21
22struct hidraw_report {
23	__u8 *value;
24	int len;
25};
26
27struct hidraw_list {
28	struct hidraw_report buffer[HIDRAW_BUFFER_SIZE];
29	int head;
30	int tail;
31	struct fasync_struct *fasync;
32	struct hidraw *hidraw;
33	struct list_head node;
34	struct mutex read_mutex;
35};
36
37#ifdef CONFIG_HIDRAW
38int hidraw_init(void);
39void hidraw_exit(void);
40int hidraw_report_event(struct hid_device *, u8 *, int);
41int hidraw_connect(struct hid_device *);
42void hidraw_disconnect(struct hid_device *);
43#else
44static inline int hidraw_init(void) { return 0; }
45static inline void hidraw_exit(void) { }
46static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; }
47static inline int hidraw_connect(struct hid_device *hid) { return -1; }
48static inline void hidraw_disconnect(struct hid_device *hid) { }
 
 
49#endif
50
51#endif

 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
21struct hidraw_report_descriptor {
22	__u32 size;
23	__u8 value[HID_MAX_DESCRIPTOR_SIZE];
24};
25
26struct 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
51struct 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
61struct hidraw_report {
62	__u8 *value;
63	int len;
64};
65
66struct 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
77int hidraw_init(void);
78void hidraw_exit(void);
79int hidraw_report_event(struct hid_device *, u8 *, int);
80int hidraw_connect(struct hid_device *);
81void hidraw_disconnect(struct hid_device *);
82#else
83static inline int hidraw_init(void) { return 0; }
84static inline void hidraw_exit(void) { }
85static inline int hidraw_report_event(struct hid_device *hid, u8 *data, int len) { return 0; }
86static inline int hidraw_connect(struct hid_device *hid) { return -1; }
87static inline void hidraw_disconnect(struct hid_device *hid) { }
88#endif
89
90#endif
91
92#endif