mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-05 14:29:28 +00:00
13 lines
402 B
C
13 lines
402 B
C
/*
|
|
* Intel 8237 DMA Controller
|
|
*
|
|
* $Id: i8237.h,v 1.3 1994/11/01 17:26:47 ache Exp $
|
|
*/
|
|
|
|
#define DMA37MD_SINGLE 0x40 /* single pass mode */
|
|
#define DMA37MD_CASCADE 0xc0 /* cascade mode */
|
|
#define DMA37MD_AUTO 0x50 /* autoinitialise single pass mode */
|
|
#define DMA37MD_WRITE 0x04 /* read the device, write memory operation */
|
|
#define DMA37MD_READ 0x08 /* write the device, read memory operation */
|
|
|