/[dynamips]/upstream/dynamips-0.2.5/dev_sb1.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /upstream/dynamips-0.2.5/dev_sb1.c

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Revision 1 - (show annotations)
Sat Oct 6 16:01:44 2007 UTC (12 years, 1 month ago) by dpavlin
File MIME type: text/plain
File size: 2477 byte(s)
import 0.2.5 from upstream

1 /*
2 * Cisco 7200 (Predator) simulation platform.
3 * Copyright (c) 2005 Christophe Fillot (cf@utc.fr)
4 *
5 * SB-1 system control devices.
6 */
7
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <string.h>
11 #include <unistd.h>
12 #include <sys/types.h>
13
14 #include <termios.h>
15 #include <fcntl.h>
16 #include <pthread.h>
17
18 #include "mips64.h"
19 #include "dynamips.h"
20 #include "memory.h"
21 #include "device.h"
22 #include "dev_c7200.h"
23
24 #define DEBUG_UNKNOWN 1
25
26 /* SB-1 private data */
27 struct sb1_data {
28 vm_obj_t vm_obj;
29 struct vdevice dev;
30
31 /* Virtual machine */
32 vm_instance_t *vm;
33 };
34
35 /*
36 * dev_sb1_access()
37 */
38 void *dev_sb1_access(cpu_mips_t *cpu,struct vdevice *dev,
39 m_uint32_t offset,u_int op_size,u_int op_type,
40 m_uint64_t *data)
41 {
42 struct sb1_data *d = dev->priv_data;
43
44 if (op_type == MTS_READ)
45 *data = 0;
46
47 switch(offset) {
48 case 0x20000:
49 if (op_type == MTS_READ)
50 *data = 0x125020FF;
51 break;
52
53 /* Seen on a real NPE-G1 :) */
54 case 0x20008:
55 if (op_type == MTS_READ)
56 *data = 0x00800000FCDB0700ULL;
57 break;
58
59 #if DEBUG_UNKNOWN
60 default:
61 if (op_type == MTS_READ) {
62 cpu_log(cpu,"SB1","read from addr 0x%x, pc=0x%llx\n",
63 offset,cpu->pc);
64 } else {
65 cpu_log(cpu,"SB1","write to addr 0x%x, value=0x%llx, pc=0x%llx\n",
66 offset,*data,cpu->pc);
67 }
68 #endif
69 }
70
71 return NULL;
72 }
73
74 /* Shutdown the SB-1 system control devices */
75 void dev_sb1_shutdown(vm_instance_t *vm,struct sb1_data *d)
76 {
77 if (d != NULL) {
78 /* Remove the device */
79 dev_remove(vm,&d->dev);
80
81 /* Free the structure itself */
82 free(d);
83 }
84 }
85
86
87 /* Create SB-1 system control devices */
88 int dev_sb1_init(vm_instance_t *vm)
89 {
90 struct sb1_data *d;
91
92 /* allocate private data structure */
93 if (!(d = malloc(sizeof(*d)))) {
94 fprintf(stderr,"SB1: out of memory\n");
95 return(-1);
96 }
97
98 memset(d,0,sizeof(*d));
99
100 vm_object_init(&d->vm_obj);
101 d->vm_obj.name = "sb1_sysctrl";
102 d->vm_obj.data = d;
103 d->vm_obj.shutdown = (vm_shutdown_t)dev_sb1_shutdown;
104
105 dev_init(&d->dev);
106 d->dev.name = "sb1_sysctrl";
107 d->dev.priv_data = d;
108 d->dev.phys_addr = 0x10000000ULL;
109 d->dev.phys_len = 0x60000;
110 d->dev.handler = dev_sb1_access;
111
112 /* Map this device to the VM */
113 vm_bind_device(vm,&d->dev);
114 vm_object_add(vm,&d->vm_obj);
115 return(0);
116 }

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