IoPort Module

The IoPort Module is part of the Kithara »RealTime Suite«.

The IoPort Module contains the following functions:

• KS_enableIoRange (enables an I/O port range for direct access)
• KS_readIoPort (direct and indirect read access from I/O ports (8/16/32 bit))
• KS_writeIoPort (direct and indirect write access to I/O ports (8/16/32 bit))
• KS_inpb (direct and indirect read access from I/O ports (8 bit))
• KS_inpw (direct and indirect read access from I/O ports (16 bit))
• KS_inpd (direct and indirect read access from I/O ports (32 bit))
• KS_outpb (direct and indirect write access to I/O ports (8 bit))
• KS_outpw (direct and indirect write access to I/O ports (16 bit))
• KS_outpd (direct and indirect write access to I/O ports (32 bit))

• KS_getBusData (enquires the PCI configuration space data)
• KS_setBusData (allows to set parts of the PCI configuration space)
• KS_getResourceInfo (retrieves resource information of devices (obsolete))
• KS_getResourceInfoEx (retrieves resource information of devices)

• KS_enterQuietSection (starts execution of ring-3 code on ring-0)
• KS_releaseQuietSection (ends execution of ring-3 code on ring-0)

The IoPort Module defines the following structures:

• KSPciBusData (contains the PCI configuration space data)
• KSResourceItem ¹⁾
• KSResourceInfo ²⁾
• KSRangeResourceItem (describes a range of memory or I/O addresses)
• KSInterruptResourceItem (describes an interrupt resource)
• KSResourceInfoEx (complete resource information of a device)