| 1 | /* |
| 2 | * Intel 8237 DMA Controller |
| 3 | */ |
| 4 | |
| 5 | #define DMA37MD_SINGLE 0x40 /* single pass mode */ |
| 6 | #define DMA37MD_CASCADE 0xc0 /* cascade mode */ |
| 7 | #define DMA37MD_AUTO 0x50 /* autoinitialise single pass mode */ |
| 8 | #define DMA37MD_WRITE 0x04 /* read the device, write memory operation */ |
| 9 | #define DMA37MD_READ 0x08 /* write the device, read memory operation */ |