tweio.h revision 138982 
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: head/sys/dev/twe/tweio.h 138982 2004-12-17 17:45:29Z peter $
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#ifdef __amd64__
48struct twe_usercommand32 {
49    TWE_Command	tu_command;	/* command ready for the controller */
50    uint32_t	tu_data;	/* pointer to data in userspace */
51    uint32_t	tu_size;	/* userspace data length */
52};
53
54#define TWEIO_COMMAND32		_IOWR('T', 100, struct twe_usercommand32)
55#endif
56
57
58/*
59 * Command queue statistics
60 */
61#define TWEQ_FREE	0
62#define TWEQ_BIO	1
63#define TWEQ_READY	2
64#define TWEQ_BUSY	3
65#define TWEQ_COMPLETE	4
66#define TWEQ_COUNT	5	/* total number of queues */
67
68struct twe_qstat {
69    u_int32_t	q_length;
70    u_int32_t	q_max;
71    u_int32_t	q_min;
72};
73
74/*
75 * Statistics request
76 */
77union twe_statrequest {
78    u_int32_t		ts_item;
79    struct twe_qstat	ts_qstat;
80};
81
82#define TWEIO_STATS		_IOWR('T', 101, union twe_statrequest)
83
84/*
85 * AEN listen
86 */
87#define TWEIO_AEN_POLL		_IOR('T', 102, u_int16_t)
88#define TWEIO_AEN_WAIT		_IOR('T', 103, u_int16_t)
89
90/*
91 * Controller parameter access
92 */
93struct twe_paramcommand {
94    u_int16_t	tp_table_id;
95    u_int8_t	tp_param_id;
96    void	*tp_data;
97    u_int8_t	tp_size;
98};
99
100#define TWEIO_SET_PARAM		_IOW ('T', 104, struct twe_paramcommand)
101#define TWEIO_GET_PARAM		_IOW ('T', 105, struct twe_paramcommand)
102
103#ifdef __amd64__
104struct twe_paramcommand32 {
105    u_int16_t	tp_table_id;
106    u_int8_t	tp_param_id;
107    u_int32_t	tp_data;
108    u_int8_t	tp_size;
109};
110
111#define TWEIO_SET_PARAM32	_IOW ('T', 104, struct twe_paramcommand32)
112#define TWEIO_GET_PARAM32	_IOW ('T', 105, struct twe_paramcommand32)
113#endif
114
115/*
116 * Request a controller soft-reset
117 */
118#define TWEIO_RESET		_IO  ('T', 106)
119
120/*
121 * Request a drive addition or deletion
122 */
123struct twe_drivecommand {
124    int		td_unit;
125};
126
127#define TWEIO_ADD_UNIT		_IOW ('U', 107, int)
128#define TWEIO_DEL_UNIT		_IOW ('U', 108, int)
129