irq_user.h

来自「LINUX 2.6.17.4的源码」· C头文件 代码 · 共 35 行

/*
 * Copyright (C) 2001, 2002 Jeff Dike ([e-mail])
 * Licensed under the GPL
 */

#ifndef __IRQ_USER_H__
#define __IRQ_USER_H__

struct irq_fd {
	struct irq_fd *next;
	void *id;
	int fd;
	int type;
	int irq;
	int pid;
	int events;
	int current_events;
};

enum { IRQ_READ, IRQ_WRITE };

extern void sigio_handler(int sig, union uml_pt_regs *regs);
extern int activate_fd(int irq, int fd, int type, void *dev_id);
extern void free_irq_by_irq_and_dev(unsigned int irq, void *dev_id);
extern void free_irq_by_fd(int fd);
extern void reactivate_fd(int fd, int irqnum);
extern void deactivate_fd(int fd, int irqnum);
extern int deactivate_all_fds(void);
extern void forward_interrupts(int pid);
extern int activate_ipi(int fd, int pid);
extern unsigned long irq_lock(void);
extern void irq_unlock(unsigned long flags);

#endif