tweio.h revision 118508 
1/*-
2 * Copyright (c) 2000 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *	$FreeBSD: head/sys/dev/twe/tweio.h 118508 2003-08-05 19:55:21Z ps $
28 */
29
30
31/*
32 * User-space command
33 *
34 * Note that the command's scatter/gather list will be computed by the
35 * driver, and cannot be filled in by the consumer.
36 */
37struct twe_usercommand {
38    TWE_Command	tu_command;	/* command ready for the controller */
39    void	*tu_data;	/* pointer to data in userspace */
40    size_t	tu_size;	/* userspace data length */
41};
42
43#define TWEIO_COMMAND		_IOWR('T', 100, struct twe_usercommand)
44
45/*
46 * Command queue statistics
47 */
48#define TWEQ_FREE	0
49#define TWEQ_BIO	1
50#define TWEQ_READY	2
51#define TWEQ_BUSY	3
52#define TWEQ_COMPLETE	4
53#define TWEQ_COUNT	5	/* total number of queues */
54
55struct twe_qstat {
56    u_int32_t	q_length;
57    u_int32_t	q_max;
58};
59
60/*
61 * Statistics request
62 */
63union twe_statrequest {
64    u_int32_t		ts_item;
65    struct twe_qstat	ts_qstat;
66};
67
68#define TWEIO_STATS		_IOWR('T', 101, union twe_statrequest)
69
70/*
71 * AEN listen
72 */
73#define TWEIO_AEN_POLL		_IOR('T', 102, int)
74#define TWEIO_AEN_WAIT		_IOR('T', 103, int)
75
76/*
77 * Controller parameter access
78 */
79struct twe_paramcommand {
80    u_int16_t	tp_table_id;
81    u_int8_t	tp_param_id;
82    void	*tp_data;
83    u_int8_t	tp_size;
84};
85
86#define TWEIO_SET_PARAM		_IOW ('T', 104, struct twe_paramcommand)
87#define TWEIO_GET_PARAM		_IOW ('T', 105, struct twe_paramcommand)
88
89/*
90 * Request a controller soft-reset
91 */
92#define TWEIO_RESET		_IO  ('T', 106)
93
94/*
95 * Request a drive addition or deletion
96 */
97struct twe_drivecommand {
98    int		td_unit;
99};
100
101#define TWEIO_ADD_UNIT		_IOW ('U', 107, int)
102#define TWEIO_DEL_UNIT		_IOW ('U', 108, int)
103