RAM 6.0 BUX II Series Guia do Utilizador descarregar pdf (Página 94)

VxWorks

BSP Developer’s Guide, 6.0

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PCI_IO16_LOC_SET

This routine sets the base address of the PCI 16-bit I/O space. This is an

alternative to setting the address using the BSP constant

PCI_ISA_IO_ADRS

The default value is 0.

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PCI_IO16_SIZE_SET

This routine sets the maximum size memory chunk allowable for the PCI

16-bit I/O space. This is an alternative to setting the size using the BSP

constant

PCI_ISA_IO_SIZE

The default value is 0.

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PCI_IO16_SIZE_GET

After autoconfiguration is complete, this routine retrieves the amount of

memory used for PCI 16-bit I/O space.

Custom PCI Bridge Initialization

PCI_BRIDGE_PRE_CONFIG_FUNC_SET

This bridge pre-configuration pass initialization routine is provided so that the

BSP developer can initialize a bridge device prior to the configuration pass on the

bus that the bridge implements. This routine is specified by calling

pciAutoCfgCtl( ) with the

PCI_BRIDGE_PRE_CONFIG_FUNC_SET command as

follows:

pciAutoCfgCtl(pCookie, PCI_BRIDGE_PRE_CONFIG_FUNC_SET,

sysPciAutoconfigPreEnumBridgeInit);

This optional, user-specified routine takes as input both the bus-device-function

tuple, and a 32-bit quantity containing both the PCI device ID and vendor ID of the

device. The function prototype for this routine is as follows:

STATUS sysPciAutoconfigPreEnumBridgeInit

(

PCI_SYSTEM *pSys,

PCI_LOC *pLoc,

UINT devVend

);

PCI_BRIDGE_PRE_CONFIG_FUNC_SET

FUNCPTR * pArg

PCI_BRIDGE_POST_CONFIG_FUNC_SET

FUNCPTR * pArg

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RAM 6.0 BUX II Series Guia do Utilizador Página 94