cos2000v1/include/pci.h

40 lines
868 B
C

struc pcidata
{
.vendor dw 0 ;vendor ID (read-only), FFFFh returned if requested device non-existent
.device dw 0 ;device ID (read-only)
.command dw 0 ;command register
.status dw 0 ;status register
.revision db 0 ;revision ID
.interface db 0 ;programming interface
.subclass db 0 ;sub-class
.class db 0 ;class code
.cache db 0 ;cache line size
.timer db 0 ;latency timer
.typed db 0 ;header type
;bits 6-0: header format
;00h other
;01h PCI-to-PCI bridge
;02h PCI-to-CardBus bridge
;bit 7: multi-function device
.result db 0 ;Built-In Self-Test result
}
virtual at 0
pcidata pcidata
end virtual
struc pciinf
{
.version_major db 0
.version_minor db 0
.types db 0
.maxbus db 0
}
multifunction equ 80h
othercard equ 00h
pci2pcibridge equ 01h
pci2pcicard equ 02h
config1addr equ 0CF8h
config1data equ 0CFCh