| 1 |
|
| 2 | #ifndef __ASM_GENERIC_DMA_H
|
| 3 | #define __ASM_GENERIC_DMA_H
|
| 4 | |
| 5 | * This file traditionally describes the i8237 PC style DMA controller.
|
| 6 | * Most architectures don't have these any more and can get the minimal
|
| 7 | * implementation from kernel/dma.c by not defining MAX_DMA_CHANNELS.
|
| 8 | *
|
| 9 | * Some code relies on seeing MAX_DMA_ADDRESS though.
|
| 10 |
|
| 11 | #define MAX_DMA_ADDRESS PAGE_OFFSET
|
| 12 |
|
| 13 | extern int request_dma(unsigned int dmanr, const char *device_id);
|
| 14 | extern void free_dma(unsigned int dmanr);
|
| 15 |
|
| 16 | #endif
|