528 _X_EXPORT unsigned int IOPortBase;      /* Memory mapped I/O port area */  variable
533     *(volatile unsigned char *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =  in outb()
540     *(volatile unsigned short *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =  in outw()
547     *(volatile unsigned int *) (((unsigned PORT_SIZE) (port)) + IOPortBase) =  in outl()
555                                         IOPortBase);  in inb()
562                                          IOPortBase);  in inw()
569                                        IOPortBase);  in inl()
865     xf86WriteMmio8(IOPortBase, port, val);  in outb()
871     xf86WriteMmio16Swap(IOPortBase, port, val);  in outw()
877     xf86WriteMmio32Swap(IOPortBase, port, val);  in outl()
883     return xf86ReadMmio8(IOPortBase, port);  in inb()
889     return xf86ReadMmio16Swap(IOPortBase, port);  in inw()
895     return xf86ReadMmio32Swap(IOPortBase, port);  in inl()