86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
/* $NetBSD: satapmpreg.h,v 1.6 2012/07/31 15:50:34 bouyer Exp $ */
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/*-
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* Copyright (c) 2004 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Frank van der Linden of Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_ATA_SATAPMPREG_H_
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#define _DEV_ATA_SATAPMPREG_H_
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/*
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* Global port multiplier registers, accessed through the control port.
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*/
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#define PMP_GSCR_ID 0x00 /* product and vendor id */
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#define PMP_ID_DEV(x) ((x) >> 16)
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#define PMP_ID_VEND(x) ((x) & 0xffff)
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#define PMP_GSCR_REV 0x01 /* revision */
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#define PMP_REV_SPEC_10 0x02
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#define PMP_REV_SPEC_11 0x04
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#define PMP_REV_LEVEL(x) (((x) >> 8) & 0xff)
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#define PMP_GSCR_INF 0x02 /* info */
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#define PMP_INF_NPORTS(x) ((x) & 0xf)
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#define PMP_GSCR_ERR 0x20 /* error bit for each port */
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#define PMP_ERR(p) ((1) << (p))
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#define PMP_GSCR_ERREN 0x21 /* error bit enable for each port */
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#define PMP_ERREN(p) ((1) << (p))
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#define PMP_GSCR_FEAT 0x40 /* features */
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#define PMP_FEAT_BIST 0x01
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#define PMP_FEAT_PMREQ 0x01
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#define PMP_FEAT_SCC 0x04
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#define PMP_FEAT_ASYNC 0x08
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#define PMP_GSCR_FEATEN 0x60 /* feature enable, bits as above */
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#define PMP_GSCR_VENDSTART 0x80 /* start of vendor unique registers */
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#define PMP_GSCR_NREGS 256
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/*
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* Port status and control registers (per port)
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*/
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#define PMP_PSCR_SStatus 0x00
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#define PMP_PSCR_SError 0x01
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#define PMP_PSCR_SControl 0x02
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#define PMP_PSCR_SActive 0x03
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/*
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* Control port as defined in the spec.
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*/
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#define PMP_PORT_CTL 0x0f
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/*
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* Device commands for port multipliers
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*/
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#define PMPC_READ_PORT 0xe4
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#define PMPC_WRITE_PORT 0xe8
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/* max number of drives (last one being the PM itself */
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#define PMP_MAX_DRIVES 16
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#endif /* _DEV_ATA_SATAPMPREG_H_ */
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