LXR qemu/include/hw/sh4/sh

   1#ifndef SH_INTC_H
   2#define SH_INTC_H
   3
   4#include "exec/memory.h"
   5
   6typedef unsigned char intc_enum;
   7
   8struct intc_vect {
   9    intc_enum enum_id;
  10    unsigned short vect;
  11};
  12
  13#define INTC_VECT(enum_id, vect) { enum_id, vect }
  14
  15struct intc_group {
  16    intc_enum enum_id;
  17    intc_enum enum_ids[32];
  18};
  19
  20#define INTC_GROUP(enum_id, ...) { enum_id, {  __VA_ARGS__ } }
  21
  22struct intc_mask_reg {
  23    unsigned long set_reg, clr_reg, reg_width;
  24    intc_enum enum_ids[32];
  25    unsigned long value;
  26};
  27
  28struct intc_prio_reg {
  29    unsigned long set_reg, clr_reg, reg_width, field_width;
  30    intc_enum enum_ids[16];
  31    unsigned long value;
  32};
  33
  34#define _INTC_ARRAY(a) a, ARRAY_SIZE(a)
  35
  36struct intc_source {
  37    unsigned short vect;
  38    intc_enum next_enum_id;
  39
  40    int asserted; /* emulates the interrupt signal line from device to intc */
  41    int enable_count;
  42    int enable_max;
  43    int pending; /* emulates the result of signal and masking */
  44    struct intc_desc *parent;
  45};
  46
  47struct intc_desc {
  48    MemoryRegion iomem;
  49    MemoryRegion *iomem_aliases;
  50    qemu_irq *irqs;
  51    struct intc_source *sources;
  52    int nr_sources;
  53    struct intc_mask_reg *mask_regs;
  54    int nr_mask_regs;
  55    struct intc_prio_reg *prio_regs;
  56    int nr_prio_regs;
  57    int pending; /* number of interrupt sources that has pending set */
  58};
  59
  60int sh_intc_get_pending_vector(struct intc_desc *desc, int imask);
  61struct intc_source *sh_intc_source(struct intc_desc *desc, intc_enum id);
  62void sh_intc_toggle_source(struct intc_source *source,
  63                           int enable_adj, int assert_adj);
  64
  65void sh_intc_register_sources(struct intc_desc *desc,
  66                              struct intc_vect *vectors,
  67                              int nr_vectors,
  68                              struct intc_group *groups,
  69                              int nr_groups);
  70
  71int sh_intc_init(MemoryRegion *sysmem,
  72                 struct intc_desc *desc,
  73                 int nr_sources,
  74                 struct intc_mask_reg *mask_regs,
  75                 int nr_mask_regs,
  76                 struct intc_prio_reg *prio_regs,
  77                 int nr_prio_regs);
  78
  79void sh_intc_set_irl(void *opaque, int n, int level);
  80
  81#endif /* SH_INTC_H */
  82