pci.c File Reference

Basic PCI I/O functions. More...

#include <rtems.h>
#include <bsp.h>
#include <libcpu/io.h>
#include <bsp/pci.h>
#include <rtems/bspIo.h>

Data Structures
struct	pcibridge

Macros
#define	PCI_CONFIG_ADDR   0xcf8
#define	PCI_CONFIG_DATA   0xcfc
#define	pci   BSP_pci_configuration
#define	PCI_CONFIG_ADDR_VAL(bus, slot, funcion, offset)    (0x80<<24|((bus)<<16)|(PCI_DEVFN((slot),(function))<<8)|(((offset)&~3)))
#define	PCI_CONFIG_WR_ADDR(addr, val)   out_le32((volatile uint32_t*)(addr), (val))
#define	PCI_CONFIG_SET_ADDR(addr, bus, slot, function, offset)    PCI_CONFIG_WR_ADDR((addr), PCI_CONFIG_ADDR_VAL((bus), (slot), (function), (offset)))
#define	PRINT_MSG()

Functions
void	detect_host_bridge (void)
void	FixupPCI (const struct _int_map *bspmap, int(*swizzler)(int, int))
int	pci_initialize (void)
unsigned char	pci_bus_count (void)

Variables
unsigned char	ucMaxPCIBus
const pci_config_access_functions	pci_indirect_functions
rtems_pci_config_t	BSP_pci_configuration
const pci_config_access_functions	pci_direct_functions

Detailed Description

Basic PCI I/O functions.

This code is heavily inspired by the public specification of STREAM V2 that can be found at:

• http://www.chorus.com/Documentation/index.html by following the STREAM API Specification Document link.

Macro Definition Documentation

PRINT_MSG

#define PRINT_MSG

(

)

Value:

  printk("pci : Device %d:0x%02x:%d routed to interrupt_line %d\n", \
    pbus, pslot, pfun, int_name )

Variable Documentation

BSP_pci_configuration

rtems_pci_config_t BSP_pci_configuration

Initial value:

= {
  (volatile unsigned char*)PCI_CONFIG_ADDR,
  (volatile unsigned char*)PCI_CONFIG_DATA,
  &pci_indirect_functions
}

pci_direct_functions

const pci_config_access_functions pci_direct_functions

Initial value:

= {
  direct_pci_read_config_byte,
  direct_pci_read_config_word,
  direct_pci_read_config_dword,
  direct_pci_write_config_byte,
  direct_pci_write_config_word,
  direct_pci_write_config_dword
}

pci_indirect_functions

const pci_config_access_functions pci_indirect_functions

Initial value:

= {
  indirect_pci_read_config_byte,
  indirect_pci_read_config_word,
  indirect_pci_read_config_dword,
  indirect_pci_write_config_byte,
  indirect_pci_write_config_word,
  indirect_pci_write_config_dword
}