FreeBSD/Linux Kernel Cross Reference
sys/dev/twe/tweio.h
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: releng/5.3/sys/dev/twe/tweio.h 123103 2003-12-02 07:57:20Z ps $
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 */
39 struct 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
57 struct 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 */
66 union 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 */
82 struct 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 */
100 struct 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)
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