xref: /openbmc/linux/net/bluetooth/hidp/hidp.h (revision b6dcefde)
1 /*
2    HIDP implementation for Linux Bluetooth stack (BlueZ).
3    Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
4 
5    This program is free software; you can redistribute it and/or modify
6    it under the terms of the GNU General Public License version 2 as
7    published by the Free Software Foundation;
8 
9    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
10    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
11    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
12    IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
13    CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
14    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 
18    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
19    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
20    SOFTWARE IS DISCLAIMED.
21 */
22 
23 #ifndef __HIDP_H
24 #define __HIDP_H
25 
26 #include <linux/types.h>
27 #include <net/bluetooth/bluetooth.h>
28 
29 /* HIDP header masks */
30 #define HIDP_HEADER_TRANS_MASK			0xf0
31 #define HIDP_HEADER_PARAM_MASK			0x0f
32 
33 /* HIDP transaction types */
34 #define HIDP_TRANS_HANDSHAKE			0x00
35 #define HIDP_TRANS_HID_CONTROL			0x10
36 #define HIDP_TRANS_GET_REPORT			0x40
37 #define HIDP_TRANS_SET_REPORT			0x50
38 #define HIDP_TRANS_GET_PROTOCOL			0x60
39 #define HIDP_TRANS_SET_PROTOCOL			0x70
40 #define HIDP_TRANS_GET_IDLE			0x80
41 #define HIDP_TRANS_SET_IDLE			0x90
42 #define HIDP_TRANS_DATA				0xa0
43 #define HIDP_TRANS_DATC				0xb0
44 
45 /* HIDP handshake results */
46 #define HIDP_HSHK_SUCCESSFUL			0x00
47 #define HIDP_HSHK_NOT_READY			0x01
48 #define HIDP_HSHK_ERR_INVALID_REPORT_ID		0x02
49 #define HIDP_HSHK_ERR_UNSUPPORTED_REQUEST	0x03
50 #define HIDP_HSHK_ERR_INVALID_PARAMETER		0x04
51 #define HIDP_HSHK_ERR_UNKNOWN			0x0e
52 #define HIDP_HSHK_ERR_FATAL			0x0f
53 
54 /* HIDP control operation parameters */
55 #define HIDP_CTRL_NOP				0x00
56 #define HIDP_CTRL_HARD_RESET			0x01
57 #define HIDP_CTRL_SOFT_RESET			0x02
58 #define HIDP_CTRL_SUSPEND			0x03
59 #define HIDP_CTRL_EXIT_SUSPEND			0x04
60 #define HIDP_CTRL_VIRTUAL_CABLE_UNPLUG		0x05
61 
62 /* HIDP data transaction headers */
63 #define HIDP_DATA_RTYPE_MASK			0x03
64 #define HIDP_DATA_RSRVD_MASK			0x0c
65 #define HIDP_DATA_RTYPE_OTHER			0x00
66 #define HIDP_DATA_RTYPE_INPUT			0x01
67 #define HIDP_DATA_RTYPE_OUPUT			0x02
68 #define HIDP_DATA_RTYPE_FEATURE			0x03
69 
70 /* HIDP protocol header parameters */
71 #define HIDP_PROTO_BOOT				0x00
72 #define HIDP_PROTO_REPORT			0x01
73 
74 /* HIDP ioctl defines */
75 #define HIDPCONNADD	_IOW('H', 200, int)
76 #define HIDPCONNDEL	_IOW('H', 201, int)
77 #define HIDPGETCONNLIST	_IOR('H', 210, int)
78 #define HIDPGETCONNINFO	_IOR('H', 211, int)
79 
80 #define HIDP_VIRTUAL_CABLE_UNPLUG	0
81 #define HIDP_BOOT_PROTOCOL_MODE		1
82 #define HIDP_BLUETOOTH_VENDOR_ID	9
83 
84 struct hidp_connadd_req {
85 	int   ctrl_sock;	// Connected control socket
86 	int   intr_sock;	// Connteted interrupt socket
87 	__u16 parser;
88 	__u16 rd_size;
89 	__u8 __user *rd_data;
90 	__u8  country;
91 	__u8  subclass;
92 	__u16 vendor;
93 	__u16 product;
94 	__u16 version;
95 	__u32 flags;
96 	__u32 idle_to;
97 	char  name[128];
98 };
99 
100 struct hidp_conndel_req {
101 	bdaddr_t bdaddr;
102 	__u32    flags;
103 };
104 
105 struct hidp_conninfo {
106 	bdaddr_t bdaddr;
107 	__u32    flags;
108 	__u16    state;
109 	__u16    vendor;
110 	__u16    product;
111 	__u16    version;
112 	char     name[128];
113 };
114 
115 struct hidp_connlist_req {
116 	__u32  cnum;
117 	struct hidp_conninfo __user *ci;
118 };
119 
120 int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock);
121 int hidp_del_connection(struct hidp_conndel_req *req);
122 int hidp_get_connlist(struct hidp_connlist_req *req);
123 int hidp_get_conninfo(struct hidp_conninfo *ci);
124 
125 /* HIDP session defines */
126 struct hidp_session {
127 	struct list_head list;
128 
129 	struct hci_conn *conn;
130 
131 	struct socket *ctrl_sock;
132 	struct socket *intr_sock;
133 
134 	bdaddr_t bdaddr;
135 
136 	unsigned long state;
137 	unsigned long flags;
138 	unsigned long idle_to;
139 
140 	uint ctrl_mtu;
141 	uint intr_mtu;
142 
143 	atomic_t terminate;
144 
145 	unsigned char keys[8];
146 	unsigned char leds;
147 
148 	struct input_dev *input;
149 
150 	struct hid_device *hid;
151 
152 	struct timer_list timer;
153 
154 	struct sk_buff_head ctrl_transmit;
155 	struct sk_buff_head intr_transmit;
156 
157 	/* Report descriptor */
158 	__u8 *rd_data;
159 	uint rd_size;
160 };
161 
162 static inline void hidp_schedule(struct hidp_session *session)
163 {
164 	struct sock *ctrl_sk = session->ctrl_sock->sk;
165 	struct sock *intr_sk = session->intr_sock->sk;
166 
167 	wake_up_interruptible(ctrl_sk->sk_sleep);
168 	wake_up_interruptible(intr_sk->sk_sleep);
169 }
170 
171 /* HIDP init defines */
172 extern int __init hidp_init_sockets(void);
173 extern void __exit hidp_cleanup_sockets(void);
174 
175 #endif /* __HIDP_H */
176