Eui64[7], Eui64[6], Eui64[5], Eui64[4],\r
Eui64[3], Eui64[2], Eui64[1], Eui64[0]\r
);\r
+ } else if (NumNodes >= FirstNonBridge + 2 &&\r
+ SubstringEq (OfwNode[FirstNonBridge + 0].DriverName, "usb") &&\r
+ SubstringEq (OfwNode[FirstNonBridge + 1].DriverName, "storage")) {\r
+ //\r
+ // OpenFirmware device path (usb-storage device in XHCI port):\r
+ //\r
+ // /pci@i0cf8/usb@3[,1]/storage@2/channel@0/disk@0,0\r
+ // ^ ^ ^ ^ ^ ^ ^\r
+ // | | | | fixed fixed\r
+ // | | | XHCI port number, 1-based\r
+ // | | PCI function corresponding to XHCI (optional)\r
+ // | PCI slot holding XHCI\r
+ // PCI root at system bus port, PIO\r
+ //\r
+ // UEFI device path prefix:\r
+ //\r
+ // PciRoot(0x0)/Pci(0x3,0x1)/USB(0x1,0x0)\r
+ // ^ ^\r
+ // | XHCI port number in 0-based notation\r
+ // 0x0 if PCI function is 0, or absent from OFW\r
+ //\r
+ RETURN_STATUS ParseStatus;\r
+ UINT64 OneBasedXhciPort;\r
+\r
+ NumEntries = 1;\r
+ ParseStatus = ParseUnitAddressHexList (\r
+ OfwNode[FirstNonBridge + 1].UnitAddress,\r
+ &OneBasedXhciPort,\r
+ &NumEntries\r
+ );\r
+ if (RETURN_ERROR (ParseStatus) || OneBasedXhciPort == 0) {\r
+ return RETURN_UNSUPPORTED;\r
+ }\r
+\r
+ Written = UnicodeSPrintAsciiFormat (\r
+ Translated,\r
+ *TranslatedSize * sizeof (*Translated), // BufferSize in bytes\r
+ "PciRoot(0x%x)%s/Pci(0x%Lx,0x%Lx)/USB(0x%Lx,0x0)",\r
+ PciRoot,\r
+ Bridges,\r
+ PciDevFun[0],\r
+ PciDevFun[1],\r
+ OneBasedXhciPort - 1\r
+ );\r
} else {\r
//\r
// Generic OpenFirmware device path for PCI devices:\r