Archipelago » qemu

#ifndef __SH_INTC_H__

#define __SH_INTC_H__

#include "qemu-common.h"

#include "hw/irq.h"

#include "exec/address-spaces.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 }

struct intc_group {

    intc_enum enum_id;

    intc_enum enum_ids[32];

};

#define INTC_GROUP(enum_id, ...) { enum_id, {  __VA_ARGS__ } }

struct intc_mask_reg {

    unsigned long set_reg, clr_reg, reg_width;

    intc_enum enum_ids[32];

    unsigned long value;

};

struct intc_prio_reg {

    unsigned long set_reg, clr_reg, reg_width, field_width;

    intc_enum enum_ids[16];

    unsigned long value;

};

#define _INTC_ARRAY(a) a, ARRAY_SIZE(a)

struct intc_source {

    unsigned short vect;

    intc_enum next_enum_id;

    int asserted; /* emulates the interrupt signal line from device to intc */

    int enable_count;

    int enable_max;

    int pending; /* emulates the result of signal and masking */

    struct intc_desc *parent;

};

struct intc_desc {

    MemoryRegion iomem;

    MemoryRegion *iomem_aliases;

    qemu_irq *irqs;

    struct intc_source *sources;

    int nr_sources;

    struct intc_mask_reg *mask_regs;

    int nr_mask_regs;

    struct intc_prio_reg *prio_regs;

    int nr_prio_regs;

    int pending; /* number of interrupt sources that has pending set */

};

int sh_intc_get_pending_vector(struct intc_desc *desc, int imask);

struct intc_source *sh_intc_source(struct intc_desc *desc, intc_enum id);

void sh_intc_toggle_source(struct intc_source *source,

                           int enable_adj, int assert_adj);

void sh_intc_register_sources(struct intc_desc *desc,

                              struct intc_vect *vectors,

                              int nr_vectors,

                              struct intc_group *groups,

                              int nr_groups);

int sh_intc_init(MemoryRegion *sysmem,

                 struct intc_desc *desc,

                 int nr_sources,

                 struct intc_mask_reg *mask_regs,

                 int nr_mask_regs,

                 struct intc_prio_reg *prio_regs,

                 int nr_prio_regs);

void sh_intc_set_irl(void *opaque, int n, int level);

#endif /* __SH_INTC_H__ */