Annotation of sys/arch/sparc/dev/dmareg.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: dmareg.h,v 1.7 2005/02/27 22:01:04 miod Exp $ */
! 2: /* $NetBSD: dmareg.h,v 1.10 1996/11/28 09:37:34 pk Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1994 Peter Galbavy. All rights reserved.
! 6: * Redistribution and use in source and binary forms, with or without
! 7: * modification, are permitted provided that the following conditions
! 8: * are met:
! 9: * 1. Redistributions of source code must retain the above copyright
! 10: * notice, this list of conditions and the following disclaimer.
! 11: * 2. Redistributions in binary form must reproduce the above copyright
! 12: * notice, this list of conditions and the following disclaimer in the
! 13: * documentation and/or other materials provided with the distribution.
! 14: *
! 15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
! 16: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
! 17: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 18: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
! 19: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 20: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 21: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 22: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 23: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 24: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 25: */
! 26:
! 27: #include <dev/ic/lsi64854reg.h>
! 28:
! 29: struct dma_regs {
! 30: volatile u_long csr; /* DMA CSR */
! 31: volatile caddr_t addr;
! 32: volatile u_long bcnt; /* DMA COUNT (in u_longs) */
! 33: volatile u_long test; /* DMA TEST (in u_longs) */
! 34: #define en_testcsr addr /* enet registers overlap */
! 35: #define en_cachev bcnt
! 36: #define en_bar test
! 37: };
! 38:
! 39: /*
! 40: * PROM-reported DMA burst sizes for the SBus
! 41: */
! 42: #define SBUS_BURST_1 0x1
! 43: #define SBUS_BURST_2 0x2
! 44: #define SBUS_BURST_4 0x4
! 45: #define SBUS_BURST_8 0x8
! 46: #define SBUS_BURST_16 0x10
! 47: #define SBUS_BURST_32 0x20
! 48: #define SBUS_BURST_64 0x40
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