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/*- * Copyright (C) 2005 TAKAHASHI Yoshihiro. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: release/9.1.0/sys/isa/isa_dmareg.h 146214 2005-05-14 10:14:56Z nyan $ */ #ifndef _ISA_ISA_DMAREG_H_ #define _ISA_ISA_DMAREG_H_ #include <dev/ic/i8237.h> #define IO_DMA1 0x00 /* 8237A DMA Controller #1 */ #define IO_DMA2 0xC0 /* 8237A DMA Controller #2 */ /* * Register definitions for DMA controller 1 (channels 0..3): */ #define DMA1_CHN(c) (IO_DMA1 + 1*(2*(c))) /* addr reg for channel c */ #define DMA1_STATUS (IO_DMA1 + 1*8) /* status register */ #define DMA1_SMSK (IO_DMA1 + 1*10) /* single mask register */ #define DMA1_MODE (IO_DMA1 + 1*11) /* mode register */ #define DMA1_FFC (IO_DMA1 + 1*12) /* clear first/last FF */ #define DMA1_RESET (IO_DMA1 + 1*13) /* reset */ /* * Register definitions for DMA controller 2 (channels 4..7): */ #define DMA2_CHN(c) (IO_DMA2 + 2*(2*(c))) /* addr reg for channel c */ #define DMA2_STATUS (IO_DMA2 + 2*8) /* status register */ #define DMA2_SMSK (IO_DMA2 + 2*10) /* single mask register */ #define DMA2_MODE (IO_DMA2 + 2*11) /* mode register */ #define DMA2_FFC (IO_DMA2 + 2*12) /* clear first/last FF */ #define DMA2_RESET (IO_DMA2 + 2*13) /* reset */ #endif /* _ISA_ISA_DMAREG_H_ */