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