3 #include <linux/usb/ehci_def.h>
4 #include <linux/usb/hcd.h>
5 #include <asm/xen/hypercall.h>
6 #include <xen/interface/physdev.h>
9 static int xen_dbgp_op(struct usb_hcd
*hcd
, int op
)
11 const struct device
*ctrlr
= hcd_to_bus(hcd
)->controller
;
12 struct physdev_dbgp_op dbgp
;
14 if (!xen_initial_domain())
20 if (ctrlr
->bus
== &pci_bus_type
) {
21 const struct pci_dev
*pdev
= to_pci_dev(ctrlr
);
23 dbgp
.u
.pci
.seg
= pci_domain_nr(pdev
->bus
);
24 dbgp
.u
.pci
.bus
= pdev
->bus
->number
;
25 dbgp
.u
.pci
.devfn
= pdev
->devfn
;
26 dbgp
.bus
= PHYSDEVOP_DBGP_BUS_PCI
;
29 dbgp
.bus
= PHYSDEVOP_DBGP_BUS_UNKNOWN
;
31 return HYPERVISOR_physdev_op(PHYSDEVOP_dbgp_op
, &dbgp
);
34 int xen_dbgp_reset_prep(struct usb_hcd
*hcd
)
36 return xen_dbgp_op(hcd
, PHYSDEVOP_DBGP_RESET_PREPARE
);
39 int xen_dbgp_external_startup(struct usb_hcd
*hcd
)
41 return xen_dbgp_op(hcd
, PHYSDEVOP_DBGP_RESET_DONE
);
44 #ifndef CONFIG_EARLY_PRINTK_DBGP
45 #include <linux/export.h>
46 EXPORT_SYMBOL_GPL(xen_dbgp_reset_prep
);
47 EXPORT_SYMBOL_GPL(xen_dbgp_external_startup
);