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isadmareg.h revision 1.1 
      1 /*	$NetBSD: isadmareg.h,v 1.1 2000/01/23 20:24:29 soda Exp $	*/
      2 
      3 #include <dev/ic/i8237reg.h>
      4 
      5 #define	DMA_NREG	16
      6 /*
      7  * Register definitions for DMA controller 1 (channels 0..3):
      8  */
      9 #define	DMA1_CHN(c)	(1*(2*(c)))	/* addr reg for channel c */
     10 #define	DMA1_SR		(1*8)		/* status register */
     11 #define	DMA1_SMSK	(1*10)		/* single mask register */
     12 #define	DMA1_MODE	(1*11)		/* mode register */
     13 #define	DMA1_FFC	(1*12)		/* clear first/last FF */
     14 
     15 /*
     16  * Register definitions for DMA controller 2 (channels 4..7):
     17  */
     18 #define	DMA2_CHN(c)	(2*(2*(c)))	/* addr reg for channel c */
     19 #define	DMA2_SR		(2*8)		/* status register */
     20 #define	DMA2_SMSK	(2*10)		/* single mask register */
     21 #define	DMA2_MODE	(2*11)		/* mode register */
     22 #define	DMA2_FFC	(2*12)		/* clear first/last FF */
     23