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/* |
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* Cisco router simulation platform. |
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* Copyright (c) 2005 Christophe Fillot (cf@utc.fr) |
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* |
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* SB-1 system control devices. |
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*/ |
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|
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <sys/types.h> |
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|
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#include <termios.h> |
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#include <fcntl.h> |
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#include <pthread.h> |
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|
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#include "cpu.h" |
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#include "vm.h" |
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#include "dynamips.h" |
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#include "memory.h" |
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#include "device.h" |
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#include "dev_c7200.h" |
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|
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#define DEBUG_UNKNOWN 1 |
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|
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/* SB-1 private data */ |
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struct sb1_data { |
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vm_obj_t vm_obj; |
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struct vdevice dev; |
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|
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/* Virtual machine */ |
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vm_instance_t *vm; |
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}; |
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|
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/* |
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* dev_sb1_access() |
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*/ |
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void *dev_sb1_access(cpu_gen_t *cpu,struct vdevice *dev, |
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m_uint32_t offset,u_int op_size,u_int op_type, |
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m_uint64_t *data) |
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{ |
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struct sb1_data *d = dev->priv_data; |
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|
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if (op_type == MTS_READ) |
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*data = 0; |
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|
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switch(offset) { |
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case 0x20000: |
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if (op_type == MTS_READ) |
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*data = 0x125020FF; |
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break; |
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|
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/* Seen on a real NPE-G1 :) */ |
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case 0x20008: |
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if (op_type == MTS_READ) |
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*data = 0x00800000FCDB0700ULL; |
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break; |
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|
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#if DEBUG_UNKNOWN |
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default: |
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if (op_type == MTS_READ) { |
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cpu_log(cpu,"SB1","read from addr 0x%x, pc=0x%llx\n", |
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offset,cpu_get_pc(cpu)); |
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} else { |
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cpu_log(cpu,"SB1","write to addr 0x%x, value=0x%llx, pc=0x%llx\n", |
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offset,*data,cpu_get_pc(cpu)); |
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} |
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#endif |
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} |
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|
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return NULL; |
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} |
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|
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/* Shutdown the SB-1 system control devices */ |
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void dev_sb1_shutdown(vm_instance_t *vm,struct sb1_data *d) |
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{ |
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if (d != NULL) { |
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/* Remove the device */ |
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dev_remove(vm,&d->dev); |
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|
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/* Free the structure itself */ |
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free(d); |
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} |
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} |
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|
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|
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/* Create SB-1 system control devices */ |
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int dev_sb1_init(vm_instance_t *vm) |
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{ |
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struct sb1_data *d; |
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|
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/* allocate private data structure */ |
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if (!(d = malloc(sizeof(*d)))) { |
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fprintf(stderr,"SB1: out of memory\n"); |
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return(-1); |
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} |
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|
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memset(d,0,sizeof(*d)); |
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|
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vm_object_init(&d->vm_obj); |
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d->vm_obj.name = "sb1_sysctrl"; |
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d->vm_obj.data = d; |
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d->vm_obj.shutdown = (vm_shutdown_t)dev_sb1_shutdown; |
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|
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dev_init(&d->dev); |
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d->dev.name = "sb1_sysctrl"; |
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d->dev.priv_data = d; |
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d->dev.phys_addr = 0x10000000ULL; |
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d->dev.phys_len = 0x60000; |
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d->dev.handler = dev_sb1_access; |
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|
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/* Map this device to the VM */ |
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vm_bind_device(vm,&d->dev); |
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vm_object_add(vm,&d->vm_obj); |
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return(0); |
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} |