Home | History | Annotate | Line # | Download | only in isa
isadmareg.h revision 1.6 
      1 /*	$NetBSD: isadmareg.h,v 1.6 1998/01/22 00:57:10 cgd Exp $	*/
      2 
      3 #include <dev/ic/i8237reg.h>
      4 
      5 /*
      6  * Register definitions for DMA controller 1 (channels 0..3):
      7  */
      8 #define	DMA1_CHN(c)	(1*(2*(c)))		/* addr reg for channel c */
      9 #define	DMA1_SR		(1*8)			/* status register */
     10 #define	DMA1_SMSK	(1*10)			/* single mask register */
     11 #define	DMA1_MODE	(1*11)			/* mode register */
     12 #define	DMA1_FFC	(1*12)			/* clear first/last FF */
     13 #define	DMA1_MASK	(1*15)			/* mask register */
     14 
     15 #define	DMA1_IOSIZE	(1*16)
     16 
     17 /*
     18  * Register definitions for DMA controller 2 (channels 4..7):
     19  */
     20 #define	DMA2_CHN(c)	(2*(2*(c)))		/* addr reg for channel c */
     21 #define	DMA2_SR		(2*8)			/* status register */
     22 #define	DMA2_SMSK	(2*10)			/* single mask register */
     23 #define	DMA2_MODE	(2*11)			/* mode register */
     24 #define	DMA2_FFC	(2*12)			/* clear first/last FF */
     25 #define	DMA2_MASK	(2*15)			/* mask register */
     26 
     27 #define	DMA2_IOSIZE	(2*16)
     28