UINT32
ReadPCICfg(
UINT8 bus,
UINT8 dev,
UINT8 fun,
UINT8 off,
UINT8 len // 1, 2, 4 bytes
)
{
unsigned int result = 0;
unsigned int pci_addr = (0x80000000 | (bus << 16) | (dev << 11) | (fun << 8) | (off & ~3));
unsigned short cfg_data_port = (UINT16)(0xCFC + ( off & 0x3 ));
if ( 1 == len ) result = (ReadPCIByte ( pci_addr, cfg_data_port ) & 0xFF);
else if( 2 == len ) result = (ReadPCIWord ( pci_addr, cfg_data_port ) & 0xFFFF);
else if( 4 == len ) result = ReadPCIDword( pci_addr, cfg_data_port );
return result;
}
uint32_t ReadPCICfg(uint8_t bus, uint8_t dev, uint8_t fun, uint8_t off,
uint8_t len)
{
unsigned int result = 0;
unsigned int pci_addr = (0x80000000 | (bus << 16) | (dev << 11) |
(fun << 8) | (off & ~3));
unsigned short cfg_data_port = (uint16_t)(0xCFC + (off & 0x3));
switch(len) {
case 1:
result = (ReadPCIByte (pci_addr, cfg_data_port) & 0xFF);
break;
case 2:
result = (ReadPCIWord (pci_addr, cfg_data_port) & 0xFFFF);
break;
case 4:
result = ReadPCIDword(pci_addr, cfg_data_port);
break;
}
return result;
}