#ifndef __SH_INTC_H
  #define __SH_INTC_H

  #include <linux/ioport.h>

  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);

  void reserve_intc_vectors(struct intc_vect *vectors, unsigned int nr_vecs);

  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 */