OAL I/O Reference OAL Interface (Compact 2013)

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