FreeBSD/Linux Kernel Cross Reference
sys/dev/qbus/rlreg.h
1 /* $NetBSD: rlreg.h,v 1.5 2017/05/22 17:22:29 ragge Exp $ */
2
3 /*
4 * Copyright (c) 2000 Ludd, University of Lule}, Sweden. 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 ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 /*
28 * RL11 registers.
29 */
30 #define RL_CS 0
31 #define RL_BA 2
32 #define RL_DA 4
33 #define RL_MP 6
34 #define RL_BAE 8 /* Only on RLV12 */
35
36 /*
37 * Bits in Control/Status register
38 */
39 #define RLCS_DRDY 0000001
40 #define RLCS_IE 0000100
41 #define RLCS_CRDY 0000200
42 #define RLCS_DE 0040000
43 #define RLCS_ERR 0100000
44 #define RLCS_ERRMSK 0036000
45 /* Command to give to drive */
46 #define RLCS_NOOP 0000000 /* No operation */
47 #define RLCS_WCK 0000002 /* Write Check */
48 #define RLCS_GS 0000004 /* Get Status */
49 #define RLCS_SEEK 0000006 /* Seek */
50 #define RLCS_RHDR 0000010 /* Read Header */
51 #define RLCS_WD 0000012 /* Write data */
52 #define RLCS_RD 0000014 /* Read data */
53 #define RLCS_RDWO 0000016 /* Read data without hdr check */
54 #define RLCS_USHFT 8 /* Shift unit number left */
55 #define RLCS_ADSHFT 4 /* Shift address bits 16-17 left */
56
57 /*
58 * Bits in Disk Address register
59 */
60 #define RLDA_SEEK 0000001 /* Issue a "Seek" command */
61 #define RLDA_GS 0000003 /* Issue a "Get Status" command */
62 #define RLDA_DIR 0000004 /* Move head towards spindle */
63 #define RLDA_RST 0000010 /* Reset the drive */
64 #define RLDA_HSSEEK 0000020 /* Head select for seek */
65 #define RLDA_HSRW 0000100 /* Head select for read/write */
66 #define RLDA_CYLSHFT 7
67
68 /*
69 * Bits in Multipurpose register
70 */
71 #define RLMP_STATUS 0000007 /* Status bits mask */
72 #define RLMP_UNLOAD 0 /* not loaded */
73 #define RLMP_SPINUP 1 /* spinning up */
74 #define RLMP_BRUSHING 2 /* brushes out */
75 #define RLMP_LOADHEADS 3 /* loading heads */
76 #define RLMP_SEEKING 4 /* seeking */
77 #define RLMP_LOCKED 5 /* lock turned on */
78 #define RLMP_UNLHEADS 6 /* unloading heads */
79 #define RLMP_SPUNDOWN 7 /* disk spun down */
80
81 #define RLMP_DT 0000200 /* Set if RL02, otherwise RL01 */
82 #define RLMP_HS 0000100 /* Head select */
83
84 /*
85 * RL01/RL02 disk layout.
86 */
87 #define RL_BPS 256 /* Bytes/sector */
88 #define RL_SPT 40 /* Sectors/track */
89 #define RL_TPS01 256 /* Tracks/surface RL01 */
90 #define RL_TPS02 512 /* Tracks/surface RL02 */
91 #define RL_SPD 2 /* Surfaces/disk */
92
93 /*
94 * Other...
95 */
96 #define RL_MAXDPC 4 /* Max disks/controller */
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