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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
I/O Reference | Production-Quality OAL Components
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