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, ...)				\
40do {								\
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 */
60enum {
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 */
77struct 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 */
86struct ubt_hci_evhdr {
87	uint8_t		event;
88	uint8_t		length;
89} __attribute__ ((packed));
90/* USB interrupt transfer (generic HCI event) structure */
91struct 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 */
96struct 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 */
110struct 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};
161typedef struct ubt_softc	ubt_softc_t;
162typedef struct ubt_softc *	ubt_softc_p;
163
164usb_error_t	ubt_do_hci_request(struct usb_device *, struct ubt_hci_cmd *,
165		    void *, usb_timeout_t);
166
167extern	driver_t	ubt_driver;
168
169#endif /* ndef _NG_UBT_VAR_H_ */
170