| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _M68K_DMA_H |
| 2 | #define _M68K_DMA_H 1 |
| 3 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | |
| 5 | /* it's useless on the m68k, but unfortunately needed by the new |
| 6 | bootmem allocator (but this should do it for this) */ |
| 7 | #define MAX_DMA_ADDRESS PAGE_OFFSET |
| 8 | |
| 9 | #define MAX_DMA_CHANNELS 8 |
| 10 | |
| 11 | extern int request_dma(unsigned int dmanr, const char * device_id); /* reserve a DMA channel */ |
| 12 | extern void free_dma(unsigned int dmanr); /* release it again */ |
| 13 | |
| 14 | #ifdef CONFIG_PCI |
| 15 | extern int isa_dma_bridge_buggy; |
| 16 | #else |
| 17 | #define isa_dma_bridge_buggy (0) |
| 18 | #endif |
| 19 | |
| 20 | #endif /* _M68K_DMA_H */ |