sys/arch/arc/isa/isadmareg.h

   1 /*      $NetBSD$        */
   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 */