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isadmareg.h revision 1.1 
      1 #include <i386/isa/ic/i8237.h>
      2 
      3 /*
      4  * Register definitions for DMA controller 1 (channels 0..3):
      5  */
      6 #define	DMA1_CHN(c)	(IO_DMA1 + 1*(2*(c)))	/* addr reg for channel c */
      7 #define	DMA1_SR		(IO_DMA1 + 1*8)		/* status register */
      8 #define	DMA1_SMSK	(IO_DMA1 + 1*10)	/* single mask register */
      9 #define	DMA1_MODE	(IO_DMA1 + 1*11)	/* mode register */
     10 #define	DMA1_FFC	(IO_DMA1 + 1*12)	/* clear first/last FF */
     11 
     12 /*
     13  * Register definitions for DMA controller 2 (channels 4..7):
     14  */
     15 #define	DMA2_CHN(c)	(IO_DMA2 + 2*(2*(c)))	/* addr reg for channel c */
     16 #define	DMA2_SR		(IO_DMA2 + 2*8)		/* status register */
     17 #define	DMA2_SMSK	(IO_DMA2 + 2*10)	/* single mask register */
     18 #define	DMA2_MODE	(IO_DMA2 + 2*11)	/* mode register */
     19 #define	DMA2_FFC	(IO_DMA2 + 2*12)	/* clear first/last FF */
     20