| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/fiq.h |
| 3 | * |
| 4 | * Support for FIQ on ARM architectures. |
| 5 | * Written by Philip Blundell <philb@gnu.org>, 1998 |
| 6 | * Re-written by Russell King |
| 7 | */ |
| 8 | |
| 9 | #ifndef __ASM_FIQ_H |
| 10 | #define __ASM_FIQ_H |
| 11 | |
| 12 | #include <asm/ptrace.h> |
| 13 | |
| 14 | struct fiq_handler { |
| 15 | struct fiq_handler *next; |
| 16 | /* Name |
| 17 | */ |
| 18 | const char *name; |
| 19 | /* Called to ask driver to relinquish/ |
| 20 | * reacquire FIQ |
| 21 | * return zero to accept, or -<errno> |
| 22 | */ |
| 23 | int (*fiq_op)(void *, int relinquish); |
| 24 | /* data for the relinquish/reacquire functions |
| 25 | */ |
| 26 | void *dev_id; |
| 27 | }; |
| 28 | |
| 29 | extern int claim_fiq(struct fiq_handler *f); |
| 30 | extern void release_fiq(struct fiq_handler *f); |
| 31 | extern void set_fiq_handler(void *start, unsigned int length); |
| 32 | extern void set_fiq_regs(struct pt_regs *regs); |
| 33 | extern void get_fiq_regs(struct pt_regs *regs); |
| 34 | extern void enable_fiq(int fiq); |
| 35 | extern void disable_fiq(int fiq); |
| 36 | |
| 37 | #endif |