1 /* $OpenBSD: isadmareg.h,v 1.5 1998/01/20 18:40:30 niklas 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 /* 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 #define DMA1_IOSIZE (1*12) 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 26 #define DMA2_IOSIZE (2*12) 27