include/linux/sh_intc.h

   1 #ifndef __SH_INTC_H
   2 #define __SH_INTC_H
   3
   4 typedef unsigned char intc_enum;
   5
   6 struct intc_vect {
   7         intc_enum enum_id;
   8         unsigned short vect;
   9 };
  10
  11 #define INTC_VECT(enum_id, vect) { enum_id, vect }
  12 #define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
  13
  14 struct intc_group {
  15         intc_enum enum_id;
  16         intc_enum enum_ids[32];
  17 };
  18
  19 #define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
  20
  21 struct intc_mask_reg {
  22         unsigned long set_reg, clr_reg, reg_width;
  23         intc_enum enum_ids[32];
  24 #ifdef CONFIG_SMP
  25         unsigned long smp;
  26 #endif
  27 };
  28
  29 struct intc_prio_reg {
  30         unsigned long set_reg, clr_reg, reg_width, field_width;
  31         intc_enum enum_ids[16];
  32 #ifdef CONFIG_SMP
  33         unsigned long smp;
  34 #endif
  35 };
  36
  37 struct intc_sense_reg {
  38         unsigned long reg, reg_width, field_width;
  39         intc_enum enum_ids[16];
  40 };
  41
  42 #ifdef CONFIG_SMP
  43 #define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
  44 #else
  45 #define INTC_SMP(stride, nr)
  46 #endif
  47
  48 struct intc_hw_desc {
  49         struct intc_vect *vectors;
  50         unsigned int nr_vectors;
  51         struct intc_group *groups;
  52         unsigned int nr_groups;
  53         struct intc_mask_reg *mask_regs;
  54         unsigned int nr_mask_regs;
  55         struct intc_prio_reg *prio_regs;
  56         unsigned int nr_prio_regs;
  57         struct intc_sense_reg *sense_regs;
  58         unsigned int nr_sense_regs;
  59         struct intc_mask_reg *ack_regs;
  60         unsigned int nr_ack_regs;
  61 };
  62
  63 #define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
  64 #define INTC_HW_DESC(vectors, groups, mask_regs,        \
  65                      prio_regs, sense_regs, ack_regs)   \
  66 {                                                       \
  67         _INTC_ARRAY(vectors), _INTC_ARRAY(groups),      \
  68         _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
  69         _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
  70 }
  71
  72 struct intc_desc {
  73         char *name;
  74         intc_enum force_enable;
  75         intc_enum force_disable;
  76         struct intc_hw_desc hw;
  77 };
  78
  79 #define DECLARE_INTC_DESC(symbol, chipname, vectors, groups,            \
  80         mask_regs, prio_regs, sense_regs)                               \
  81 struct intc_desc symbol __initdata = {                                  \
  82         .name = chipname,                                               \
  83         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
  84                            prio_regs, sense_regs, NULL),                \
  85 }
  86
  87 #define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups,        \
  88         mask_regs, prio_regs, sense_regs, ack_regs)                     \
  89 struct intc_desc symbol __initdata = {                                  \
  90         .name = chipname,                                               \
  91         .hw = INTC_HW_DESC(vectors, groups, mask_regs,                  \
  92                            prio_regs, sense_regs, ack_regs),            \
  93 }
  94
  95 void __init register_intc_controller(struct intc_desc *desc);
  96 int intc_set_priority(unsigned int irq, unsigned int prio);
  97
  98 int reserve_irq_vector(unsigned int irq);
  99 void reserve_irq_legacy(void);
 100
 101 #endif /* __SH_INTC_H */