1 /* $NetBSD: isadmareg.h,v 1.2 2000/01/23 21:01:59 soda Exp $ */ 2 /* NetBSD: isadmareg.h,v 1.4 1995/06/28 04:31:48 cgd Exp */ 3 4 #include <dev/ic/i8237reg.h> 5 6 #define DMA_NREG 16 7 /* 8 * Register definitions for DMA controller 1 (channels 0..3): 9 */ 10 #define DMA1_CHN(c) (1*(2*(c))) /* addr reg for channel c */ 11 #define DMA1_SR (1*8) /* status register */ 12 #define DMA1_SMSK (1*10) /* single mask register */ 13 #define DMA1_MODE (1*11) /* mode register */ 14 #define DMA1_FFC (1*12) /* clear first/last FF */ 15 16 /* 17 * Register definitions for DMA controller 2 (channels 4..7): 18 */ 19 #define DMA2_CHN(c) (2*(2*(c))) /* addr reg for channel c */ 20 #define DMA2_SR (2*8) /* status register */ 21 #define DMA2_SMSK (2*10) /* single mask register */ 22 #define DMA2_MODE (2*11) /* mode register */ 23 #define DMA2_FFC (2*12) /* clear first/last FF */ 24