1 |
/* |
/* |
2 |
* Copyright (C) 2005 Anders Gavare. All rights reserved. |
* Copyright (C) 2005-2006 Anders Gavare. All rights reserved. |
3 |
* |
* |
4 |
* Redistribution and use in source and binary forms, with or without |
* Redistribution and use in source and binary forms, with or without |
5 |
* modification, are permitted provided that the following conditions are met: |
* modification, are permitted provided that the following conditions are met: |
25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: dev_prep.c,v 1.1 2005/11/21 09:17:26 debug Exp $ |
* $Id: dev_prep.c,v 1.4 2006/02/09 20:02:59 debug Exp $ |
29 |
* |
* |
30 |
* PReP interrupt controller. |
* PReP interrupt controller. |
31 |
*/ |
*/ |
45 |
/* |
/* |
46 |
* dev_prep_access(): |
* dev_prep_access(): |
47 |
*/ |
*/ |
48 |
int dev_prep_access(struct cpu *cpu, struct memory *mem, |
DEVICE_ACCESS(prep) |
|
uint64_t relative_addr, unsigned char *data, size_t len, int writeflag, |
|
|
void *extra) |
|
49 |
{ |
{ |
50 |
/* struct prep_data *d = extra; */ |
/* struct prep_data *d = extra; */ |
51 |
uint64_t idata = 0, odata = 0; |
uint64_t idata = 0, odata = 0; |
53 |
if (writeflag == MEM_WRITE) |
if (writeflag == MEM_WRITE) |
54 |
idata = memory_readmax64(cpu, data, len); |
idata = memory_readmax64(cpu, data, len); |
55 |
|
|
56 |
if (writeflag == MEM_READ) |
if (writeflag == MEM_READ) { |
57 |
odata = cpu->machine->isa_pic_data.last_int; |
odata = cpu->machine->isa_pic_data.last_int; |
58 |
else |
} else { |
59 |
fatal("[ prep: write to interrupt register? ]\n"); |
fatal("[ prep: write to interrupt register? ]\n"); |
60 |
|
} |
61 |
|
|
62 |
if (writeflag == MEM_READ) |
if (writeflag == MEM_READ) |
63 |
memory_writemax64(cpu, data, len, odata); |
memory_writemax64(cpu, data, len, odata); |
66 |
} |
} |
67 |
|
|
68 |
|
|
69 |
/* |
DEVINIT(prep) |
|
* devinit_prep(): |
|
|
*/ |
|
|
int devinit_prep(struct devinit *devinit) |
|
70 |
{ |
{ |
71 |
struct prep_data *d; |
struct prep_data *d; |
72 |
|
|
78 |
memset(d, 0, sizeof(struct prep_data)); |
memset(d, 0, sizeof(struct prep_data)); |
79 |
|
|
80 |
memory_device_register(devinit->machine->memory, devinit->name, |
memory_device_register(devinit->machine->memory, devinit->name, |
81 |
0xbffffff0, 1, dev_prep_access, d, DM_DEFAULT, NULL); |
0xbffff000, 0x1000, dev_prep_access, d, DM_DEFAULT, NULL); |
82 |
|
|
83 |
devinit->return_ptr = d; |
devinit->return_ptr = d; |
84 |
|
|