xref: /freebsd/sys/netgraph/bluetooth/drivers/ubt/ng_ubt_var.h (revision f126890ac5386406dadf7c4cfa9566cbb56537c5)
1 /*
2  * ng_ubt_var.h
3  */
4 
5 /*-
6  * SPDX-License-Identifier: BSD-2-Clause
7  *
8  * Copyright (c) 2001-2009 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  * $Id: ng_ubt_var.h,v 1.2 2003/03/22 23:44:36 max Exp $
33  */
34 
35 #ifndef _NG_UBT_VAR_H_
36 #define	_NG_UBT_VAR_H_	1
37 
38 /* Debug printf's */
39 #define	UBT_DEBUG(level, sc, fmt, ...)				\
40 do {								\
41 	if ((sc)->sc_debug >= (level))				\
42 		device_printf((sc)->sc_dev, "%s:%d: " fmt, 	\
43 			__FUNCTION__, __LINE__,## __VA_ARGS__);	\
44 } while (0)
45 
46 #define	UBT_ALERT(...)		UBT_DEBUG(NG_UBT_ALERT_LEVEL, __VA_ARGS__)
47 #define	UBT_ERR(...)		UBT_DEBUG(NG_UBT_ERR_LEVEL, __VA_ARGS__)
48 #define	UBT_WARN(...)		UBT_DEBUG(NG_UBT_WARN_LEVEL, __VA_ARGS__)
49 #define	UBT_INFO(...)		UBT_DEBUG(NG_UBT_INFO_LEVEL, __VA_ARGS__)
50 
51 #define UBT_NG_LOCK(sc)		mtx_lock(&(sc)->sc_ng_mtx)
52 #define UBT_NG_UNLOCK(sc)	mtx_unlock(&(sc)->sc_ng_mtx)
53 
54 /* Bluetooth USB control request type */
55 #define	UBT_HCI_REQUEST		0x20
56 #define	UBT_DEFAULT_QLEN	64
57 #define	UBT_ISOC_NFRAMES	32	/* should be factor of 8 */
58 
59 /* Bluetooth USB defines */
60 enum {
61 	/* Interface #0 transfers */
62 	UBT_IF_0_BULK_DT_WR = 0,
63 	UBT_IF_0_BULK_DT_RD,
64 	UBT_IF_0_INTR_DT_RD,
65 	UBT_IF_0_CTRL_DT_WR,
66 
67 	/* Interface #1 transfers */
68 	UBT_IF_1_ISOC_DT_RD1,
69 	UBT_IF_1_ISOC_DT_RD2,
70 	UBT_IF_1_ISOC_DT_WR1,
71 	UBT_IF_1_ISOC_DT_WR2,
72 
73 	UBT_N_TRANSFER,		/* total number of transfers */
74 };
75 
76 /* USB control request (HCI command) structure */
77 struct ubt_hci_cmd {
78 	uint16_t	opcode;
79 	uint8_t		length;
80 	uint8_t		data[];
81 } __attribute__ ((packed));
82 #define	UBT_HCI_CMD_SIZE(cmd) \
83 	((cmd)->length + offsetof(struct ubt_hci_cmd, data))
84 
85 /* USB interrupt transfer HCI event header structure */
86 struct ubt_hci_evhdr {
87 	uint8_t		event;
88 	uint8_t		length;
89 } __attribute__ ((packed));
90 /* USB interrupt transfer (generic HCI event) structure */
91 struct ubt_hci_event {
92 	struct ubt_hci_evhdr	header;
93 	uint8_t			data[];
94 } __attribute__ ((packed));
95 /* USB interrupt transfer (HCI command completion event) structure */
96 struct ubt_hci_event_command_compl {
97 	struct ubt_hci_evhdr	header;
98 	uint8_t			numpkt;
99 	uint16_t		opcode;
100 	uint8_t			data[];
101 } __attribute__ ((packed));
102 #define	UBT_HCI_EVENT_SIZE(evt) \
103 	((evt)->header.length + offsetof(struct ubt_hci_event, data))
104 #define	UBT_HCI_EVENT_COMPL_HEAD_SIZE \
105 	(offsetof(struct ubt_hci_event_command_compl, data) - \
106 	 offsetof(struct ubt_hci_event_command_compl, numpkt))
107 
108 
109 /* USB device softc structure */
110 struct ubt_softc {
111 	device_t		sc_dev;		/* for debug printf */
112 
113 	/* State */
114 	ng_ubt_node_debug_ep	sc_debug;	/* debug level */
115 
116 	ng_ubt_node_stat_ep	sc_stat;	/* statistic */
117 #define	UBT_STAT_PCKTS_SENT(sc)		(sc)->sc_stat.pckts_sent ++
118 #define	UBT_STAT_BYTES_SENT(sc, n)	(sc)->sc_stat.bytes_sent += (n)
119 #define	UBT_STAT_PCKTS_RECV(sc)		(sc)->sc_stat.pckts_recv ++
120 #define	UBT_STAT_BYTES_RECV(sc, n)	(sc)->sc_stat.bytes_recv += (n)
121 #define	UBT_STAT_OERROR(sc)		(sc)->sc_stat.oerrors ++
122 #define	UBT_STAT_IERROR(sc)		(sc)->sc_stat.ierrors ++
123 #define	UBT_STAT_RESET(sc)	bzero(&(sc)->sc_stat, sizeof((sc)->sc_stat))
124 
125 	/* USB device specific */
126 	struct mtx		sc_if_mtx;	/* interfaces lock */
127 	struct usb_xfer	*sc_xfer[UBT_N_TRANSFER];
128 
129 	struct mtx		sc_ng_mtx;	/* lock for shared NG data */
130 
131 	/* HCI commands */
132 	struct ng_bt_mbufq	sc_cmdq;	/* HCI command queue */
133 #define	UBT_CTRL_BUFFER_SIZE	(sizeof(struct usb_device_request) +	\
134 				 sizeof(ng_hci_cmd_pkt_t) + NG_HCI_CMD_PKT_SIZE)
135 #define	UBT_INTR_BUFFER_SIZE	(MCLBYTES-1)	/* reserve 1 byte for ID-tag */
136 
137 	/* ACL data */
138 	struct ng_bt_mbufq	sc_aclq;	/* ACL data queue */
139 #define	UBT_BULK_READ_BUFFER_SIZE (MCLBYTES-1)	/* reserve 1 byte for ID-tag */
140 #define	UBT_BULK_WRITE_BUFFER_SIZE (MCLBYTES)
141 
142 	/* SCO data */
143 	struct ng_bt_mbufq	sc_scoq;	/* SCO data queue */
144 	struct mbuf		*sc_isoc_in_buffer; /* SCO reassembly buffer */
145 
146 	/* Netgraph specific */
147 	node_p			sc_node;	/* pointer back to node */
148 	hook_p			sc_hook;	/* upstream hook */
149 
150 	/* Glue */
151 	int			sc_task_flags;	/* task flags */
152 #define UBT_FLAG_T_PENDING	(1 << 0)	/* task pending */
153 #define UBT_FLAG_T_STOP_ALL	(1 << 1)	/* stop all xfers */
154 #define UBT_FLAG_T_START_ALL	(1 << 2)	/* start all read and isoc
155 						   write xfers */
156 #define UBT_FLAG_T_START_CTRL	(1 << 3)	/* start control xfer (write) */
157 #define UBT_FLAG_T_START_BULK	(1 << 4)	/* start bulk xfer (write) */
158 
159 	struct task		sc_task;
160 };
161 typedef struct ubt_softc	ubt_softc_t;
162 typedef struct ubt_softc *	ubt_softc_p;
163 
164 usb_error_t	ubt_do_hci_request(struct usb_device *, struct ubt_hci_cmd *,
165 		    void *, usb_timeout_t);
166 
167 extern	driver_t	ubt_driver;
168 
169 #endif /* ndef _NG_UBT_VAR_H_ */
170