lxdream 0.9.1| filename | src/mmio.h |
| changeset | 10:c898b37506e0 |
| next | 31:495e480360d7 |
| author | nkeynes |
| date | Sun Dec 25 05:57:00 2005 +0000 (18 years ago) |
| permissions | -rw-r--r-- |
| last change | Change timeslice to nanoseconds (was microseconds) Generize single step (now steps through active CPU) Add lots of header blocks |
| view | annotate | diff | log | raw |
1 #ifndef dream_mmio_H
2 #define dream_mmio_H 1
4 #ifdef __cplusplus
5 extern "C" {
6 #if 0
7 }
8 #endif
9 #endif
11 #include <stdint.h>
12 #include <stdlib.h>
13 #include "sh4core.h"
15 #define PAGE_TABLE_ENTRIES 128*1024
16 #define PAGE_SIZE 4096
17 #define PAGE_BITS 12
19 #define PORT_R 1
20 #define PORT_W 2
21 #define PORT_MEM 4 /* store written value */
22 #define PORT_RW 3
23 #define PORT_MR 5
24 #define PORT_MRW 7
25 #define UNDEFINED 0xDEADBEEF /* This has to be a value that nothing inits to */
27 struct mmio_region {
28 char *id, *desc;
29 uint32_t base;
30 int32_t (*io_read)(uint32_t addr);
31 void (*io_write)(uint32_t addr, uint32_t val);
32 char *mem;
33 char *save_mem; /* Used to compare for gui updates */
34 struct mmio_port {
35 char *id, *desc;
36 int width;
37 uint32_t offset;
38 uint32_t def_val;
39 int flags;
40 uint32_t *val;
41 } ports[80];
42 struct mmio_port **index; /* reverse lookup by address */
43 int trace_flag; /* set to 1 to enable transfer traces */
44 };
46 void register_io_region( struct mmio_region *mmio );
47 void register_io_regions( struct mmio_region **mmiolist );
49 extern struct mmio_region *io_rgn[];
50 extern int num_io_rgns;
52 #define MMIO_READ( id, r ) *((int32_t *)(mmio_region_##id.mem + (r)))
53 #define MMIO_WRITE( id, r, v ) *((int32_t *)(mmio_region_##id.mem + (r))) = (v)
54 #define MMIO_REG( id, r ) ((int32_t *)(mmio_region_##id.mem + (r)))
55 #define MMIO_REGID( mid, r ) (mmio_region_##mid.index[(r)>>2] != NULL ? \
56 mmio_region_##mid.index[(r)>>2]->id : "<UNDEF>" )
57 #define MMIO_REGDESC( mid, r) (mmio_region_##mid.index[(r)>>2] != NULL ? \
58 mmio_region_##mid.index[(r)>>2]->desc : "Undefined register" )
59 #define MMIO_TRACE( mid ) mmio_region_##mid.trace_flag = 1
60 #define MMIO_NOTRACE( mid ) mmio_region_##mid.trace_flag = 0
62 #define MMIO_REGID_BYNUM( mid, r ) (io_rgn[mid]->index[(r)>>2] != NULL ? \
63 io_rgn[mid]->index[(r)>>2]->id : "<UNDEF>" )
64 #define MMIO_REGDESC_BYNUM( mid, r ) (io_rgn[mid]->index[(r)>>2] != NULL ? \
65 io_rgn[mid]->index[(r)>>2]->desc : "Undefined register" )
66 #define MMIO_NAME_BYNUM( mid ) (io_rgn[mid]->id)
68 #ifdef __cplusplus
69 }
70 #endif
72 #endif
74 #ifdef MMIO_IMPL
76 #ifndef MMIO_IMPL_INCLUDED
77 #define MMIO_IMPL_INCLUDED
78 #undef MMIO_REGION_BEGIN
79 #undef LONG_PORT
80 #undef WORD_PORT
81 #undef BYTE_PORT
82 #undef MMIO_REGION_END
83 #undef MMIO_REGION_LIST_BEGIN
84 #undef MMIO_REGION
85 #undef MMIO_REGION_LIST_END
86 #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, {
87 #define LONG_PORT( o,id,f,def,d ) { #id, d, 32, o, def, f },
88 #define WORD_PORT( o,id,f,def,d ) { #id, d, 16, o, def, f },
89 #define BYTE_PORT( o,id,f,def,d ) { #id, d, 8, o, def, f },
90 #define MMIO_REGION_END {NULL, NULL, 0, 0, 0, 0} } };
91 #define MMIO_REGION_LIST_BEGIN(id) struct mmio_region *mmio_list_##id[] = {
92 #define MMIO_REGION( id ) &mmio_region_##id,
93 #define MMIO_REGION_LIST_END NULL};
95 /* Stub defines for modules we haven't got to yet, or ones which don't
96 * actually need any direct code on read and/or write
97 */
98 #define MMIO_REGION_READ_STUBFN( id ) \
99 int32_t mmio_region_##id##_read( uint32_t reg ) { \
100 int32_t val = MMIO_READ( id, reg ); \
101 WARN( "Read from unimplemented module %s (%03X => %08X) [%s: %s]",\
102 #id, reg, val, MMIO_REGID(id,reg), MMIO_REGDESC(id,reg) ); \
103 return val; \
104 }
105 #define MMIO_REGION_WRITE_STUBFN( id ) \
106 void mmio_region_##id##_write( uint32_t reg, uint32_t val ) { \
107 WARN( "Write to unimplemented module %s (%03X <= %08X) [%s: %s]", \
108 #id, reg, val, MMIO_REGID(id,reg), MMIO_REGDESC(id,reg) ); \
109 MMIO_WRITE( id, reg, val ); \
110 }
111 #define MMIO_REGION_STUBFNS( id ) \
112 MMIO_REGION_READ_STUBFN( id ) \
113 MMIO_REGION_WRITE_STUBFN( id )
114 #define MMIO_REGION_READ_DEFFN( id ) \
115 int32_t mmio_region_##id##_read( uint32_t reg ) { \
116 return MMIO_READ( id, reg ); \
117 }
118 #define MMIO_REGION_WRITE_DEFFN( id ) \
119 void mmio_region_##id##_write( uint32_t reg, uint32_t val ) { \
120 MMIO_WRITE( id, reg, val ); \
121 }
122 #define MMIO_REGION_DEFFNS( id ) \
123 MMIO_REGION_READ_DEFFN( id ) \
124 MMIO_REGION_WRITE_DEFFN( id )
125 #endif
127 #define MMIO_REGION_WRITE_FN( id, reg, val ) \
128 void mmio_region_##id##_write( uint32_t reg, uint32_t val )
130 #define MMIO_REGION_READ_FN( id, reg ) \
131 int32_t mmio_region_##id##_read( uint32_t reg )
133 #else
135 #ifndef MMIO_IFACE_INCLUDED
136 #define MMIO_IFACE_INCLUDED
137 #define MMIO_REGION_BEGIN(b,id,d) \
138 extern struct mmio_region mmio_region_##id; \
139 int32_t mmio_region_##id##_read(uint32_t); \
140 void mmio_region_##id##_write(uint32_t, uint32_t); \
141 enum mmio_region_##id##_port_t {
142 #define LONG_PORT( o,id,f,def,d ) id = o,
143 #define WORD_PORT( o,id,f,def,d ) id = o,
144 #define BYTE_PORT( o,id,f,def,d ) id = o,
145 #define MMIO_REGION_END };
146 #define MMIO_REGION_LIST_BEGIN(id) extern struct mmio_region *mmio_list_##id[];
147 #define MMIO_REGION( id )
148 #define MMIO_REGION_LIST_END
149 #endif
151 #endif
.