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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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#ifndef __PCI_DEV_H__ |
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#define __PCI_DEV_H__ |
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#include "utils.h" |
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#define PCI_BUS_ADDR 0xcf8 |
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#define PCI_BUS_DATA 0xcfc |
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/* PCI ID (Vendor + Device) register */ |
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#define PCI_REG_ID 0x00 |
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/* PCI Base Address Registers (BAR) */ |
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#define PCI_REG_BAR0 0x10 |
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#define PCI_REG_BAR1 0x14 |
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#define PCI_REG_BAR2 0x18 |
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#define PCI_REG_BAR3 0x1c |
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#define PCI_REG_BAR4 0x20 |
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#define PCI_REG_BAR5 0x24 |
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/* Forward declaration for PCI device */ |
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typedef struct pci_device pci_dev_t; |
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/* PCI function prototypes */ |
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typedef void (*pci_init_t)(pci_dev_t *dev); |
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typedef m_uint32_t (*pci_reg_read_t)(cpu_gen_t *cpu,pci_dev_t *dev,int reg); |
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typedef void (*pci_reg_write_t)(cpu_gen_t *cpu,pci_dev_t *dev,int reg, |
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m_uint32_t value); |
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/* PCI device */ |
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struct pci_device { |
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char *name; |
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u_int vendor_id,product_id; |
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int device,function,irq; |
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void *priv_data; |
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/* Parent bus */ |
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struct pci_bus *pci_bus; |
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pci_init_t init; |
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pci_reg_read_t read_register; |
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pci_reg_write_t write_register; |
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struct pci_device *next,**pprev; |
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}; |
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/* PCI bus */ |
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struct pci_bus { |
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char *name; |
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m_uint32_t pci_addr; |
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/* Bus number */ |
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int bus; |
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/* PCI device list on this bus */ |
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struct pci_device *dev_list; |
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/* PCI bridges to access other busses */ |
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struct pci_bridge *bridge_list; |
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}; |
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/* PCI bridge */ |
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struct pci_bridge { |
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int pri_bus; /* Primary Bus */ |
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int sec_bus; /* Secondary Bus */ |
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int sub_bus; /* Subordinate Bus */ |
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int skip_bus_check; |
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/* Bus configuration register */ |
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m_uint32_t cfg_reg_bus; |
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/* PCI bridge device */ |
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struct pci_device *pci_dev; |
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/* Secondary PCI bus */ |
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struct pci_bus *pci_bus; |
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/* Fallback handlers to read/write config registers */ |
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pci_reg_read_t fallback_read; |
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pci_reg_write_t fallback_write; |
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struct pci_bridge *next,**pprev; |
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}; |
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/* PCI IO device */ |
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struct pci_io_device { |
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m_uint32_t start,end; |
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struct vdevice *real_dev; |
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dev_handler_t handler; |
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struct pci_io_device *next,**pprev; |
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}; |
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/* Trigger a PCI device IRQ */ |
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void pci_dev_trigger_irq(vm_instance_t *vm,struct pci_device *dev); |
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/* Clear a PCI device IRQ */ |
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void pci_dev_clear_irq(vm_instance_t *vm,struct pci_device *dev); |
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/* PCI bus lookup */ |
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struct pci_bus *pci_bus_lookup(struct pci_bus *pci_bus_root,int bus); |
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/* PCI device local lookup */ |
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struct pci_device *pci_dev_lookup_local(struct pci_bus *pci_bus, |
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int device,int function); |
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/* PCI device lookup */ |
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struct pci_device *pci_dev_lookup(struct pci_bus *pci_bus_root, |
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int bus,int device,int function); |
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/* Handle the address register access */ |
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void pci_dev_addr_handler(cpu_gen_t *cpu,struct pci_bus *pci_bus, |
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u_int op_type,int swap,m_uint64_t *data); |
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/* Handle the data register access */ |
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void pci_dev_data_handler(cpu_gen_t *cpu,struct pci_bus *pci_bus, |
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u_int op_type,int swap,m_uint64_t *data); |
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/* Add a PCI bridge */ |
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struct pci_bridge *pci_bridge_add(struct pci_bus *pci_bus); |
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/* Remove a PCI bridge */ |
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void pci_bridge_remove(struct pci_bridge *bridge); |
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/* Map secondary bus to a PCI bridge */ |
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void pci_bridge_map_bus(struct pci_bridge *bridge,struct pci_bus *pci_bus); |
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/* Set PCI bridge bus info */ |
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void pci_bridge_set_bus_info(struct pci_bridge *bridge, |
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int pri_bus,int sec_bus,int sub_bus); |
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/* Add a PCI device */ |
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struct pci_device * |
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pci_dev_add(struct pci_bus *pci_bus, |
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char *name,u_int vendor_id,u_int product_id, |
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int device,int function,int irq, |
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void *priv_data,pci_init_t init, |
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pci_reg_read_t read_register, |
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pci_reg_write_t write_register); |
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/* Add a basic PCI device that just returns a Vendor/Product ID */ |
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struct pci_device * |
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pci_dev_add_basic(struct pci_bus *pci_bus, |
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char *name,u_int vendor_id,u_int product_id, |
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int device,int function); |
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/* Remove a PCI device */ |
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void pci_dev_remove(struct pci_device *dev); |
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/* Remove a PCI device given its ID (bus,device,function) */ |
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int pci_dev_remove_by_id(struct pci_bus *pci_bus, |
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int bus,int device,int function); |
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/* Remove a PCI device given its name */ |
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int pci_dev_remove_by_name(struct pci_bus *pci_bus,char *name); |
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/* Create a PCI bus */ |
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struct pci_bus *pci_bus_create(char *name,int bus); |
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/* Delete a PCI bus */ |
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void pci_bus_remove(struct pci_bus *pci_bus); |
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/* Create a PCI bridge device */ |
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struct pci_device *pci_bridge_create_dev(struct pci_bus *pci_bus,char *name, |
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u_int vendor_id,u_int product_id, |
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int device,int function, |
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struct pci_bus *sec_bus, |
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pci_reg_read_t fallback_read, |
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pci_reg_write_t fallback_write); |
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/* Show PCI device list */ |
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void pci_dev_show_list(struct pci_bus *pci_bus); |
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#endif |