1 #ifndef __SH_INTC_H__

     2 #define __SH_INTC_H__

     3 

     4 #include "qemu-common.h"

     5 #include "irq.h"

     6 

     7 typedef unsigned char intc_enum;

     8 

     9 struct intc_vect {

    10     intc_enum enum_id;

    11     unsigned short vect;

    12 };

    13 

    14 #define INTC_VECT(enum_id, vect) { enum_id, vect }

    15 

    16 struct intc_group {

    17     intc_enum enum_id;

    18     intc_enum enum_ids[32];

    19 };

    20 

    21 #define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }

    22 

    23 struct intc_mask_reg {

    24     unsigned long set_reg, clr_reg, reg_width;

    25     intc_enum enum_ids[32];

    26     unsigned long value;

    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     unsigned long value;

    33 };

    34 

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

    36 

    37 struct intc_source {

    38     unsigned short vect;

    39     intc_enum next_enum_id;

    40 

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

    42     int enable_count;

    43     int enable_max;

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

    45     struct intc_desc *parent;

    46 };

    47 

    48 struct intc_desc {

    49     qemu_irq *irqs;

    50     struct intc_source *sources;

    51     int nr_sources;

    52     struct intc_mask_reg *mask_regs;

    53     int nr_mask_regs;

    54     struct intc_prio_reg *prio_regs;

    55     int nr_prio_regs;

    56     int iomemtype;

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

    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(struct intc_desc *desc,

    72 		 int nr_sources,

    73 		 struct intc_mask_reg *mask_regs,

    74 		 int nr_mask_regs,

    75 		 struct intc_prio_reg *prio_regs,

    76 		 int nr_prio_regs);

    77 

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

    79 

    80 #endif /* __SH_INTC_H__ */