blob: 53900cc02ea039682b100058ce8535671ed733c8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
/* $OpenBSD: i8237reg.h,v 1.2 1996/04/18 23:47:19 niklas Exp $ */
/* $NetBSD: i8237reg.h,v 1.5 1996/03/01 22:27:09 mycroft Exp $ */
/*
* Intel 8237 DMA Controller
*/
#define DMA37MD_WRITE 0x04 /* read the device, write memory operation */
#define DMA37MD_READ 0x08 /* write the device, read memory operation */
#define DMA37MD_LOOP 0x10 /* auto-initialize mode */
#define DMA37MD_SINGLE 0x40 /* single pass mode */
#define DMA37MD_CASCADE 0xc0 /* cascade mode */
#define DMA37SM_CLEAR 0x00 /* clear mask bit */
#define DMA37SM_SET 0x04 /* set mask bit */
|
