fiq.h
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上传日期:2009-04-28
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- /*
- * linux/include/asm-arm/fiq.h
- *
- * Support for FIQ on ARM architectures.
- * Written by Philip Blundell <philb@gnu.org>, 1998
- * Re-written by Russell King
- */
- #ifndef __ASM_FIQ_H
- #define __ASM_FIQ_H
- #include <asm/ptrace.h>
- struct fiq_handler {
- struct fiq_handler *next;
- /* Name
- */
- const char *name;
- /* Called to ask driver to relinquish/
- * reacquire FIQ
- * return zero to accept, or -<errno>
- */
- int (*fiq_op)(void *, int relinquish);
- /* data for the relinquish/reacquire functions
- */
- void *dev_id;
- };
- extern int claim_fiq(struct fiq_handler *f);
- extern void release_fiq(struct fiq_handler *f);
- extern void set_fiq_handler(void *start, unsigned int length);
- extern void set_fiq_regs(struct pt_regs *regs);
- extern void get_fiq_regs(struct pt_regs *regs);
- extern void enable_fiq(int fiq);
- extern void disable_fiq(int fiq);
- #endif