sys/dev/ata/satapmpreg.h

   1 /*      $NetBSD: satapmpreg.h,v 1.2 2005/12/11 12:21:14 christos 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 #endif /* _DEV_ATA_SATAPMPREG_H_ */