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dpavlin |
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/* |
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* Cisco router simulation platform. |
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* Copyright (c) 2005,2006 Christophe Fillot (cf@utc.fr) |
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* |
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* Cisco 2600 PCI controller. |
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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 "utils.h" |
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#include "net.h" |
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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 "net_io.h" |
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/* Debugging flags */ |
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#define DEBUG_ACCESS 0 |
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#define DEBUG_UNKNOWN 1 |
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/* Galileo GT64xxx/GT96xxx system controller */ |
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struct c2600_pci_data { |
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char *name; |
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vm_obj_t vm_obj; |
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struct vdevice dev; |
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struct pci_device *pci_dev; |
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vm_instance_t *vm; |
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struct pci_bus *bus; |
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}; |
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/* |
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* dev_c2600_pci_access() |
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*/ |
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void *dev_c2600_pci_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 c2600_pci_data *d = dev->priv_data; |
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if (op_type == MTS_READ) |
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*data = 0x0; |
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switch(offset) { |
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case 0x500: |
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pci_dev_addr_handler(cpu,d->bus,op_type,FALSE,data); |
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break; |
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case 0x504: |
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pci_dev_data_handler(cpu,d->bus,op_type,FALSE,data); |
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break; |
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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,d->name,"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,d->name,"write to addr 0x%x, value=0x%llx, " |
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"pc=0x%llx\n",offset,*data,cpu_get_pc(cpu)); |
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} |
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#endif |
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} |
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return NULL; |
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} |
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/* Shutdown the c2600 PCI controller device */ |
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void dev_c2600_pci_shutdown(vm_instance_t *vm,struct c2600_pci_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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/* Free the structure itself */ |
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free(d); |
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} |
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} |
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/* Create the c2600 PCI controller device */ |
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int dev_c2600_pci_init(vm_instance_t *vm,char *name, |
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m_uint64_t paddr,m_uint32_t len, |
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struct pci_bus *bus) |
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{ |
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struct c2600_pci_data *d; |
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if (!(d = malloc(sizeof(*d)))) { |
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fprintf(stderr,"c2600_pci: unable to create device data.\n"); |
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return(-1); |
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} |
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memset(d,0,sizeof(*d)); |
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d->name = name; |
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d->vm = vm; |
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d->bus = bus; |
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vm_object_init(&d->vm_obj); |
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d->vm_obj.name = name; |
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d->vm_obj.data = d; |
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d->vm_obj.shutdown = (vm_shutdown_t)dev_c2600_pci_shutdown; |
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dev_init(&d->dev); |
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d->dev.name = name; |
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d->dev.priv_data = d; |
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d->dev.phys_addr = paddr; |
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d->dev.phys_len = len; |
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d->dev.handler = dev_c2600_pci_access; |
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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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} |
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