2000-01-24 00:01:48 +03:00
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/* $NetBSD: isadmareg.h,v 1.2 2000/01/23 21:01:59 soda Exp $ */
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/* NetBSD: isadmareg.h,v 1.4 1995/06/28 04:31:48 cgd Exp */
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2000-01-23 23:24:23 +03:00
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#include <dev/ic/i8237reg.h>
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#define DMA_NREG 16
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/*
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* Register definitions for DMA controller 1 (channels 0..3):
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*/
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#define DMA1_CHN(c) (1*(2*(c))) /* addr reg for channel c */
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#define DMA1_SR (1*8) /* status register */
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#define DMA1_SMSK (1*10) /* single mask register */
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#define DMA1_MODE (1*11) /* mode register */
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#define DMA1_FFC (1*12) /* clear first/last FF */
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/*
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* Register definitions for DMA controller 2 (channels 4..7):
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*/
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#define DMA2_CHN(c) (2*(2*(c))) /* addr reg for channel c */
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#define DMA2_SR (2*8) /* status register */
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#define DMA2_SMSK (2*10) /* single mask register */
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#define DMA2_MODE (2*11) /* mode register */
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#define DMA2_FFC (2*12) /* clear first/last FF */
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