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