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Annotation of sys/dev/ic/i8237reg.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: i8237reg.h,v 1.3 1999/08/04 23:07:49 niklas Exp $     */
                      2: /*     $NetBSD: i8237reg.h,v 1.5 1996/03/01 22:27:09 mycroft Exp $     */
                      3:
                      4: /*
                      5:  * Intel 8237 DMA Controller
                      6:  */
                      7:
                      8: #define        DMA37MD_DEMAND  0x00    /* demand mode */
                      9: #define        DMA37MD_WRITE   0x04    /* read the device, write memory operation */
                     10: #define        DMA37MD_READ    0x08    /* write the device, read memory operation */
                     11: #define        DMA37MD_LOOP    0x10    /* auto-initialize mode */
                     12: #define        DMA37MD_SINGLE  0x40    /* single pass mode */
                     13: #define        DMA37MD_CASCADE 0xc0    /* cascade mode */
                     14:
                     15: #define        DMA37SM_CLEAR   0x00    /* clear mask bit */
                     16: #define        DMA37SM_SET     0x04    /* set mask bit */