1/*-
2 * Copyright (c) 2000 Michael Smith
3 * Copyright (c) 2003 Paul Saab
4 * Copyright (c) 2003 Vinod Kashyap
5 * Copyright (c) 2000 BSDi
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	$FreeBSD$
30 */
31
32
33/*
34 * User-space command
35 *
36 * Note that the command's scatter/gather list will be computed by the
37 * driver, and cannot be filled in by the consumer.
38 */
39struct twe_usercommand {
40    TWE_Command	tu_command;	/* command ready for the controller */
41    void	*tu_data;	/* pointer to data in userspace */
42    size_t	tu_size;	/* userspace data length */
43};
44
45#define TWEIO_COMMAND		_IOWR('T', 100, struct twe_usercommand)
46
47/*
48 * Command queue statistics
49 */
50#define TWEQ_FREE	0
51#define TWEQ_BIO	1
52#define TWEQ_READY	2
53#define TWEQ_BUSY	3
54#define TWEQ_COMPLETE	4
55#define TWEQ_COUNT	5	/* total number of queues */
56
57struct twe_qstat {
58    u_int32_t	q_length;
59    u_int32_t	q_max;
60    u_int32_t	q_min;
61};
62
63/*
64 * Statistics request
65 */
66union twe_statrequest {
67    u_int32_t		ts_item;
68    struct twe_qstat	ts_qstat;
69};
70
71#define TWEIO_STATS		_IOWR('T', 101, union twe_statrequest)
72
73/*
74 * AEN listen
75 */
76#define TWEIO_AEN_POLL		_IOR('T', 102, u_int16_t)
77#define TWEIO_AEN_WAIT		_IOR('T', 103, u_int16_t)
78
79/*
80 * Controller parameter access
81 */
82struct twe_paramcommand {
83    u_int16_t	tp_table_id;
84    u_int8_t	tp_param_id;
85    void	*tp_data;
86    u_int8_t	tp_size;
87};
88
89#define TWEIO_SET_PARAM		_IOW ('T', 104, struct twe_paramcommand)
90#define TWEIO_GET_PARAM		_IOW ('T', 105, struct twe_paramcommand)
91
92/*
93 * Request a controller soft-reset
94 */
95#define TWEIO_RESET		_IO  ('T', 106)
96
97/*
98 * Request a drive addition or deletion
99 */
100struct twe_drivecommand {
101    int		td_unit;
102};
103
104#define TWEIO_ADD_UNIT		_IOW ('U', 107, int)
105#define TWEIO_DEL_UNIT		_IOW ('U', 108, int)
106