1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/mmio.h	Mon Dec 12 10:09:24 2005 +0000
     1.3 @@ -0,0 +1,152 @@
     1.4 +#ifndef dream_mmio_H
     1.5 +#define dream_mmio_H 1
     1.6 +
     1.7 +#ifdef __cplusplus
     1.8 +extern "C" {
     1.9 +#if 0
    1.10 +}
    1.11 +#endif
    1.12 +#endif
    1.13 +
    1.14 +#include <stdint.h>
    1.15 +#include <stdlib.h>
    1.16 +#include "sh4core.h"
    1.17 +
    1.18 +#define PAGE_TABLE_ENTRIES 128*1024
    1.19 +#define PAGE_SIZE 4096
    1.20 +#define PAGE_BITS 12
    1.21 +
    1.22 +#define PORT_R 1
    1.23 +#define PORT_W 2
    1.24 +#define PORT_MEM 4 /* store written value */
    1.25 +#define PORT_RW 3
    1.26 +#define PORT_MR 5
    1.27 +#define PORT_MRW 7
    1.28 +#define UNDEFINED 0xDEADBEEF /* This has to be a value that nothing inits to */
    1.29 +
    1.30 +struct mmio_region {
    1.31 +    char *id, *desc;
    1.32 +    uint32_t base;
    1.33 +    int32_t (*io_read)(uint32_t addr);
    1.34 +    void (*io_write)(uint32_t addr, uint32_t val);
    1.35 +    char *mem;
    1.36 +    char *save_mem; /* Used to compare for gui updates */
    1.37 +    struct mmio_port {
    1.38 +        char *id, *desc;
    1.39 +        int width;
    1.40 +        uint32_t offset;
    1.41 +        uint32_t def_val;
    1.42 +        int flags;
    1.43 +        uint32_t *val;
    1.44 +    } ports[80];
    1.45 +    struct mmio_port **index; /* reverse lookup by address */
    1.46 +    int trace_flag; /* set to 1 to enable transfer traces */
    1.47 +};
    1.48 +
    1.49 +void register_io_region( struct mmio_region *mmio );
    1.50 +void register_io_regions( struct mmio_region **mmiolist );
    1.51 +
    1.52 +extern struct mmio_region *io_rgn[];
    1.53 +extern int num_io_rgns;
    1.54 +
    1.55 +#define MMIO_READ( id, r ) *((int32_t *)(mmio_region_##id.mem + (r)))
    1.56 +#define MMIO_WRITE( id, r, v ) *((int32_t *)(mmio_region_##id.mem + (r))) = (v)
    1.57 +#define MMIO_REG( id, r ) ((int32_t *)(mmio_region_##id.mem + (r)))
    1.58 +#define MMIO_REGID( mid, r ) (mmio_region_##mid.index[(r)>>2] != NULL ? \
    1.59 +            mmio_region_##mid.index[(r)>>2]->id : "<UNDEF>" )
    1.60 +#define MMIO_REGDESC( mid, r) (mmio_region_##mid.index[(r)>>2] != NULL ? \
    1.61 +            mmio_region_##mid.index[(r)>>2]->desc : "Undefined register" )
    1.62 +#define MMIO_TRACE( mid ) mmio_region_##mid.trace_flag = 1
    1.63 +#define MMIO_NOTRACE( mid ) mmio_region_##mid.trace_flag = 0
    1.64 +
    1.65 +#define MMIO_REGID_BYNUM( mid, r ) (io_rgn[mid]->index[(r)>>2] != NULL ? \
    1.66 +            io_rgn[mid]->index[(r)>>2]->id : "<UNDEF>" )
    1.67 +#define MMIO_REGDESC_BYNUM( mid, r ) (io_rgn[mid]->index[(r)>>2] != NULL ? \
    1.68 +            io_rgn[mid]->index[(r)>>2]->desc : "Undefined register" )
    1.69 +#define MMIO_NAME_BYNUM( mid ) (io_rgn[mid]->id)
    1.70 +
    1.71 +#ifdef __cplusplus
    1.72 +}
    1.73 +#endif
    1.74 +
    1.75 +#endif
    1.76 +
    1.77 +#ifdef MMIO_IMPL
    1.78 +
    1.79 +#ifndef MMIO_IMPL_INCLUDED
    1.80 +#define MMIO_IMPL_INCLUDED
    1.81 +#undef MMIO_REGION_BEGIN
    1.82 +#undef LONG_PORT
    1.83 +#undef WORD_PORT
    1.84 +#undef BYTE_PORT
    1.85 +#undef MMIO_REGION_END
    1.86 +#undef MMIO_REGION_LIST_BEGIN
    1.87 +#undef MMIO_REGION
    1.88 +#undef MMIO_REGION_LIST_END
    1.89 +#define MMIO_REGION_BEGIN(b,id,d) struct mmio_region mmio_region_##id = { #id, d, b, mmio_region_##id##_read, mmio_region_##id##_write, 0, 0, {
    1.90 +#define LONG_PORT( o,id,f,def,d ) { #id, d, 32, o, def, f },
    1.91 +#define WORD_PORT( o,id,f,def,d ) { #id, d, 16, o, def, f },
    1.92 +#define BYTE_PORT( o,id,f,def,d ) { #id, d, 8, o, def, f },
    1.93 +#define MMIO_REGION_END {NULL, NULL, 0, 0, 0, 0} } };
    1.94 +#define MMIO_REGION_LIST_BEGIN(id) struct mmio_region *mmio_list_##id[] = {
    1.95 +#define MMIO_REGION( id ) &mmio_region_##id,
    1.96 +#define MMIO_REGION_LIST_END NULL};
    1.97 +
    1.98 +/* Stub defines for modules we haven't got to yet, or ones which don't
    1.99 + * actually need any direct code on read and/or write
   1.100 + */
   1.101 +#define MMIO_REGION_READ_STUBFN( id ) \
   1.102 +int32_t mmio_region_##id##_read( uint32_t reg ) { \
   1.103 +    int32_t val = MMIO_READ( id, reg ); \
   1.104 +    WARN( "Read from unimplemented module %s (%03X => %08X) [%s: %s]",\
   1.105 +          #id, reg, val, MMIO_REGID(id,reg), MMIO_REGDESC(id,reg) ); \
   1.106 +    return val; \
   1.107 +}
   1.108 +#define MMIO_REGION_WRITE_STUBFN( id ) \
   1.109 +void mmio_region_##id##_write( uint32_t reg, uint32_t val ) { \
   1.110 +    WARN( "Write to unimplemented module %s (%03X <= %08X) [%s: %s]", \
   1.111 +          #id, reg, val, MMIO_REGID(id,reg), MMIO_REGDESC(id,reg) ); \
   1.112 +    MMIO_WRITE( id, reg, val ); \
   1.113 +}
   1.114 +#define MMIO_REGION_STUBFNS( id ) \
   1.115 +    MMIO_REGION_READ_STUBFN( id ) \
   1.116 +    MMIO_REGION_WRITE_STUBFN( id )
   1.117 +#define MMIO_REGION_READ_DEFFN( id ) \
   1.118 +int32_t mmio_region_##id##_read( uint32_t reg ) { \
   1.119 +    return MMIO_READ( id, reg ); \
   1.120 +}
   1.121 +#define MMIO_REGION_WRITE_DEFFN( id ) \
   1.122 +void mmio_region_##id##_write( uint32_t reg, uint32_t val ) { \
   1.123 +    MMIO_WRITE( id, reg, val ); \
   1.124 +}
   1.125 +#define MMIO_REGION_DEFFNS( id ) \
   1.126 +    MMIO_REGION_READ_DEFFN( id ) \
   1.127 +    MMIO_REGION_WRITE_DEFFN( id )
   1.128 +#endif
   1.129 +
   1.130 +#define MMIO_REGION_WRITE_FN( id, reg, val ) \
   1.131 +void mmio_region_##id##_write( uint32_t reg, uint32_t val )
   1.132 +
   1.133 +#define MMIO_REGION_READ_FN( id, reg ) \
   1.134 +int32_t mmio_region_##id##_read( uint32_t reg )
   1.135 +
   1.136 +#else
   1.137 +
   1.138 +#ifndef MMIO_IFACE_INCLUDED
   1.139 +#define MMIO_IFACE_INCLUDED
   1.140 +#define MMIO_REGION_BEGIN(b,id,d) \
   1.141 +extern struct mmio_region mmio_region_##id; \
   1.142 +int32_t mmio_region_##id##_read(uint32_t); \
   1.143 +void mmio_region_##id##_write(uint32_t, uint32_t); \
   1.144 +enum mmio_region_##id##_port_t {
   1.145 +#define LONG_PORT( o,id,f,def,d ) id = o,
   1.146 +#define WORD_PORT( o,id,f,def,d ) id = o,
   1.147 +#define BYTE_PORT( o,id,f,def,d ) id = o,
   1.148 +#define MMIO_REGION_END };
   1.149 +#define MMIO_REGION_LIST_BEGIN(id) extern struct mmio_region *mmio_list_##id[];
   1.150 +#define MMIO_REGION( id )
   1.151 +#define MMIO_REGION_LIST_END
   1.152 +#endif
   1.153 +
   1.154 +#endif
   1.155 +