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picvar.h revision 1.1.2.4 
      1 #ifndef _ARM_PIC_PICVAR_H_
      2 #define _ARM_PIC_PICVAR_H_
      3 
      4 int	_splraise(int);
      5 int	_spllower(int);
      6 void	splx(int);
      7 const char *
      8 	intr_typename(int);
      9 
     10 struct pic_softc;
     11 struct intrsource;
     12 
     13 int	pic_handle_intr(void *);
     14 void	pic_mark_pending(struct pic_softc *pic, int irq);
     15 void	pic_mark_pending_source(struct pic_softc *pic, struct intrsource *is);
     16 void	*pic_establish_intr(struct pic_softc *pic, int irq, int ipl, int type,
     17 	    int (*func)(void *), void *arg);
     18 int	pic_alloc_irq(struct pic_softc *pic);
     19 void	pic_disestablish_source(struct intrsource *is);
     20 void	pic_do_pending_ints(register_t psw, int newipl);
     21 void	pic_dispatch(struct intrsource *is, void *frame);
     22 
     23 void	*intr_establish(int irq, int ipl, int type, int (*func)(void *),
     24 	    void *arg);
     25 void	intr_disestablish(void *);
     26 
     27 #ifdef _INTR_PRIVATE
     28 
     29 #ifndef PIC_MAXPICS
     30 #define PIC_MAXPICS	32
     31 #endif
     32 #ifndef PIC_MAXSOURCES
     33 #define	PIC_MAXSOURCES	64
     34 #endif
     35 #ifndef PIC_MAXMAXSOURCES
     36 #define	PIC_MAXMAXSOURCES	128
     37 #endif
     38 
     39 struct intrsource {
     40 	int (*is_func)(void *);
     41 	void *is_arg;
     42 	struct pic_softc *is_pic;		/* owning PIC */
     43 	uint8_t is_type;			/* IST_xxx */
     44 	uint8_t is_ipl;				/* IPL_xxx */
     45 	uint8_t is_irq;				/* local to pic */
     46 	uint8_t is_iplidx;
     47 	struct evcnt is_ev;
     48 	char is_source[16];
     49 };
     50 
     51 struct pic_softc {
     52 	const struct pic_ops *pic_ops;
     53 	struct intrsource **pic_sources;
     54 	uint32_t pic_pending_irqs[(PIC_MAXSOURCES + 31) / 32];
     55 	uint32_t pic_pending_ipls;
     56 	size_t pic_maxsources;
     57 	uint8_t pic_id;
     58 	int16_t pic_irqbase;
     59 	char pic_name[14];
     60 };
     61 
     62 struct pic_ops {
     63 	void (*pic_unblock_irqs)(struct pic_softc *, size_t, uint32_t);
     64 	void (*pic_block_irqs)(struct pic_softc *, size_t, uint32_t);
     65 	int (*pic_find_pending_irqs)(struct pic_softc *);
     66 
     67 	void (*pic_establish_irq)(struct pic_softc *, int, int, int);
     68 	void (*pic_source_name)(struct pic_softc *, int, char *, size_t);
     69 };
     70 
     71 
     72 void	pic_add(struct pic_softc *, int);
     73 void	pic_do_pending_int(void);
     74 
     75 extern struct pic_softc * pic_list[PIC_MAXPICS];
     76 #endif /* _INTR_PRIVATE */
     77 
     78 #endif /* _ARM_PIC_PICVAR_H_ */
     79