1 | /* $NetBSD: satapmpreg.h,v 1.6 2012/07/31 15:50:34 bouyer Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2004 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Frank van der Linden of Wasabi Systems, Inc. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #ifndef _DEV_ATA_SATAPMPREG_H_ |
33 | #define _DEV_ATA_SATAPMPREG_H_ |
34 | |
35 | /* |
36 | * Global port multiplier registers, accessed through the control port. |
37 | */ |
38 | |
39 | #define PMP_GSCR_ID 0x00 /* product and vendor id */ |
40 | #define PMP_ID_DEV(x) ((x) >> 16) |
41 | #define PMP_ID_VEND(x) ((x) & 0xffff) |
42 | #define PMP_GSCR_REV 0x01 /* revision */ |
43 | #define PMP_REV_SPEC_10 0x02 |
44 | #define PMP_REV_SPEC_11 0x04 |
45 | #define PMP_REV_LEVEL(x) (((x) >> 8) & 0xff) |
46 | #define PMP_GSCR_INF 0x02 /* info */ |
47 | #define PMP_INF_NPORTS(x) ((x) & 0xf) |
48 | #define PMP_GSCR_ERR 0x20 /* error bit for each port */ |
49 | #define PMP_ERR(p) ((1) << (p)) |
50 | #define PMP_GSCR_ERREN 0x21 /* error bit enable for each port */ |
51 | #define PMP_ERREN(p) ((1) << (p)) |
52 | #define PMP_GSCR_FEAT 0x40 /* features */ |
53 | #define PMP_FEAT_BIST 0x01 |
54 | #define PMP_FEAT_PMREQ 0x01 |
55 | #define PMP_FEAT_SCC 0x04 |
56 | #define PMP_FEAT_ASYNC 0x08 |
57 | #define PMP_GSCR_FEATEN 0x60 /* feature enable, bits as above */ |
58 | |
59 | #define PMP_GSCR_VENDSTART 0x80 /* start of vendor unique registers */ |
60 | |
61 | #define PMP_GSCR_NREGS 256 |
62 | |
63 | /* |
64 | * Port status and control registers (per port) |
65 | */ |
66 | #define PMP_PSCR_SStatus 0x00 |
67 | #define PMP_PSCR_SError 0x01 |
68 | #define PMP_PSCR_SControl 0x02 |
69 | #define PMP_PSCR_SActive 0x03 |
70 | |
71 | /* |
72 | * Control port as defined in the spec. |
73 | */ |
74 | #define PMP_PORT_CTL 0x0f |
75 | |
76 | /* |
77 | * Device commands for port multipliers |
78 | */ |
79 | #define PMPC_READ_PORT 0xe4 |
80 | #define PMPC_WRITE_PORT 0xe8 |
81 | |
82 | /* max number of drives (last one being the PM itself */ |
83 | #define PMP_MAX_DRIVES 16 |
84 | |
85 | #endif /* _DEV_ATA_SATAPMPREG_H_ */ |
86 | |