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OAL I/O Reference OAL Interface (Compact 2013)

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10/16/2014

The following table shows the functions exported from the I/O library for use with other libraries in the OAL.

Programming Element

Description

OALIoBusPowerOff

This function puts the bus driver into power off mode.

OALIoBusPowerOn

This function puts the bus driver back into power on mode.

OALIoReadBusData

This function reads data from the device configuration space.

OALIoTransBusAddress

This function translates the bus-relative address to the system address.

OALIoTransSystemAddress

This function translates the system RAM address to the bus-relative address.

OALIoWriteBusData

This function writes data to the device configuration space.

The following table shows the macros exported from the I/O library for use with other libraries in the OAL.

Programming Element

Description

CLRPORT8

This macro clears a byte from a specified port address.

CLRPORT16

This macro clears a 16-bit word from a specified port address.

CLRPORT32

This macro clears a 32-bit word from a specified port address.

CLRREG8

This macro clears a byte at a specified address.

CLRREG16

This macro clears a 16-bit word at a specified address.

CLRREG32

This macro clears a 32-bit word at a specified address.

INPORT8

This macro reads a byte from a specified address.

INPORT16

This macro reads a 16-bit word from a specified port address.

INPORT32

This macro reads a 32-bit word from a specified address.

INREG8

This macro reads a byte from a specified address.

INREG16

This macro reads a 16-bit word from a specified address.

INREG32

This macro reads a 32-bit word from a specified address.

MASKPORT8

This macro is a helper function that uses a bit mask to write a byte to a specified address.

MASKPORT16

This macro is a helper function that uses a bit mask to write a 16-bit word to a specified address.

MASKPORT32

This macro is a helper function that uses a bit mask to write a 32-bit word to a specified address.

MASKREG8

This macro is a helper function that uses a bit mask to write a byte to a specified address.

MASKREG16

This macro is a helper function that uses a bit mask to write a 16-bit word to a specified address.

MASKREG32

This macro is a helper function that uses a bit mask to write a 32-bit word to a specified address.

OUTPORT8

This macro writes a byte to a specified address.

OUTPORT16

This macro writes a 16-bit word to a specified address.

OUTPORT32

This macro writes a 32-bit word to a specified address.

OUTREG8

This macro writes a byte to a specified address.

OUTREG16

This macro writes a 16-bit word to a specified address.

OUTREG32

This macro writes a 32-bit word to a specified address.

SETPORT8

This macro sets the bits at a specified port address.

SETPORT16

This macro sets a 16-bit word at a specified port address.

SETPORT32

This macro sets a 32-bit word at a specified port address.

SETREG8

This macro sets the bits at a specified address.

SETREG16

This macro sets a 16-bit word at a specified address.

SETREG32

This macro sets a 32-bit word at a specified address.

See Also

Reference

OAL I/O Reference