diff options
Diffstat (limited to 'MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c index 2d24bb4b8..9e5299c0e 100644 --- a/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c +++ b/MdeModulePkg/Bus/Usb/UsbBusDxe/UsbHub.c @@ -975,13 +975,13 @@ UsbHubResetPort ( }
//
- // Drive the reset signal for at least 10ms. Check USB 2.0 Spec
+ // Drive the reset signal for worst 20ms. Check USB 2.0 Spec
// section 7.1.7.5 for timing requirements.
//
gBS->Stall (USB_SET_PORT_RESET_STALL);
//
- // USB hub will clear RESET bit if reset is actually finished.
+ // Check USB_PORT_STAT_C_RESET bit to see if the resetting state is done.
//
ZeroMem (&PortState, sizeof (EFI_USB_PORT_STATUS));
@@ -989,8 +989,8 @@ UsbHubResetPort ( Status = UsbHubGetPortStatus (HubIf, Port, &PortState);
if (!EFI_ERROR (Status) &&
- !USB_BIT_IS_SET (PortState.PortStatus, USB_PORT_STAT_RESET)) {
-
+ USB_BIT_IS_SET (PortState.PortChangeStatus, USB_PORT_STAT_C_RESET)) {
+ gBS->Stall (USB_SET_PORT_RECOVERY_STALL);
return EFI_SUCCESS;
}
|