1 files changed, 83 insertions, 0 deletions
diff --git a/include/hw/sh4/sh_intc.h b/include/hw/sh4/sh_intc.h
new file mode 100644
index 0000000000..b7ddcb096a
--- /dev/null
+++ b/include/hw/sh4/sh_intc.h
@@ -0,0 +1,83 @@
+#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__ */