| 1 | #ifndef SH_INTC_H |
| 2 | #define SH_INTC_H |
| 3 | |
| 4 | #include "system/memory.h" |
| 5 | |
| 6 | typedef unsigned char intc_enum; |
| 7 | |
| 8 | struct intc_vect { |
| 9 | intc_enum enum_id; |
| 10 | unsigned short vect; |
| 11 | }; |
| 12 | |
| 13 | #define INTC_VECT(enum_id, vect) { enum_id, vect } |
| 14 | |
| 15 | struct 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 | |
| 22 | struct intc_mask_reg { |
| 23 | unsigned long set_reg, clr_reg, reg_width; |
| 24 | intc_enum enum_ids[32]; |
| 25 | unsigned long value; |
| 26 | }; |
| 27 | |
| 28 | struct 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 | |
| 36 | struct 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 | |
| 47 | struct 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 | |
| 60 | int sh_intc_get_pending_vector(struct intc_desc *desc, int imask); |
| 61 | |
| 62 | void sh_intc_toggle_source(struct intc_source *source, |
| 63 | int enable_adj, int assert_adj); |
| 64 | |
| 65 | void 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 | |
| 71 | int 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 | |
| 79 | void sh_intc_set_irl(void *opaque, int n, int level); |
| 80 | |
| 81 | #endif /* SH_INTC_H */ |