| 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 | |