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#ifndef __SH_INTC_H
#define __SH_INTC_H
#include <linux/ioport.h>
#ifdef CONFIG_SUPERH
#define INTC_NR_IRQS 512
#else
#define INTC_NR_IRQS 1024
#endif
/*
* Convert back and forth between INTEVT and IRQ values.
*/
#ifdef CONFIG_CPU_HAS_INTEVT
#define evt2irq(evt) (((evt) >> 5) - 16)
#define irq2evt(irq) (((irq) + 16) << 5)
#else
#define evt2irq(evt) (evt)
#define irq2evt(irq) (irq)
#endif
typedef unsigned char intc_enum;
struct intc_vect {
intc_enum enum_id;
unsigned short vect;
};
#define INTC_VECT(enum_id, vect) { enum_id, vect }
#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
struct intc_group {
intc_enum enum_id;
intc_enum enum_ids[32];
};
#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
struct intc_subgroup {
unsigned long reg, reg_width;
intc_enum parent_id;
intc_enum enum_ids[32];
};
struct intc_mask_reg {
unsigned long set_reg, clr_reg, reg_width;
intc_enum enum_ids[32];
#ifdef CONFIG_INTC_BALANCING
unsigned long dist_reg;
#endif
#ifdef CONFIG_SMP
unsigned long smp;
#endif
};
struct intc_prio_reg {
unsigned long set_reg, clr_reg, reg_width, field_width;
intc_enum enum_ids[16];
#ifdef CONFIG_SMP
unsigned long smp;
#endif
};
struct intc_sense_reg {
unsigned long reg, reg_width, field_width;
intc_enum enum_ids[16];
};
#ifdef CONFIG_INTC_BALANCING
#define INTC_SMP_BALANCING(reg) .dist_reg = (reg)
#else
#define INTC_SMP_BALANCING(reg)
#endif
#ifdef CONFIG_SMP
#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
#else
#define INTC_SMP(stride, nr)
#endif
struct intc_hw_desc {
struct intc_vect *vectors;
unsigned int nr_vectors;
struct intc_group *groups;
unsigned int nr_groups;
struct intc_mask_reg *mask_regs;
unsigned int nr_mask_regs;
struct intc_prio_reg *prio_regs;
unsigned int nr_prio_regs;
struct intc_sense_reg *sense_regs;
unsigned int nr_sense_regs;
struct intc_mask_reg *ack_regs;
unsigned int nr_ack_regs;
struct intc_subgroup *subgroups;
unsigned int nr_subgroups;
};
#define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
#define INTC_HW_DESC(vectors, groups, mask_regs, \
prio_regs, sense_regs, ack_regs) \
{ \
_INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
_INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
}
struct intc_desc {
char *name;
struct resource *resource;
unsigned int num_resources;
intc_enum force_enable;
intc_enum force_disable;
bool skip_syscore_suspend;
struct intc_hw_desc hw;
};
#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \
mask_regs, prio_regs, sense_regs) \
struct intc_desc symbol __initdata = { \
.name = chipname, \
.hw = INTC_HW_DESC(vectors, groups, mask_regs, \
prio_regs, sense_regs, NULL), \
}
#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \
mask_regs, prio_regs, sense_regs, ack_regs) \
struct intc_desc symbol __initdata = { \
.name = chipname, \
.hw = INTC_HW_DESC(vectors, groups, mask_regs, \
prio_regs, sense_regs, ack_regs), \
}
int register_intc_controller(struct intc_desc *desc);
int intc_set_priority(unsigned int irq, unsigned int prio);
int intc_irq_lookup(const char *chipname, intc_enum enum_id);
void intc_finalize(void);
#ifdef CONFIG_INTC_USERIMASK
int register_intc_userimask(unsigned long addr);
#else
static inline int register_intc_userimask(unsigned long addr)
{
return 0;
}
#endif
#endif /* __SH_INTC_H */