Annotation of sys/arch/hp300/dev/isabrreg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: isabrreg.h,v 1.1 2007/01/06 20:17:43 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 2007 Miodrag Vallat.
! 5: *
! 6: * Permission to use, copy, modify, and distribute this software for any
! 7: * purpose with or without fee is hereby granted, provided that the above
! 8: * copyright notice, this permission notice, and the disclaimer below
! 9: * appear in all copies.
! 10: *
! 11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 18: */
! 19:
! 20: /*
! 21: * Models 4xx ISA slot memory spaces
! 22: */
! 23:
! 24: #define ISABR_IOMEM_BASE (0x30000000 + IOM_BEGIN)
! 25: #define ISABR_IOMEM_END (0x30000000 + IOM_END)
! 26:
! 27: #define ISABR_IOPORT_BASE 0x30000000
! 28: #define ISABR_IOPORT_END 0x30080000
! 29:
! 30: /*
! 31: * Ye mighty logic by which ports are interleaved.
! 32: * The actual scheme is more complex, to allow ports over 0x400 to be mapped
! 33: * in bits 3-11 of the address. But we don't support the multi-slot EISA
! 34: * bridges yet.
! 35: */
! 36: #define ISABR_IOPORT_LINE 0x08
! 37: #define ISAADDR(p) \
! 38: ((((p) & ~(ISABR_IOPORT_LINE - 1)) << 9) | ((p) & (ISABR_IOPORT_LINE - 1)))
! 39: #define ISAPORT(a) \
! 40: ((((a) >> 9) & ~(ISABR_IOPORT_LINE - 1)) | ((a) & (ISABR_IOPORT_LINE - 1)))
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