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MdeModulePkg XhciPei/UsbBusPei: Add XHCI recovery support.

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Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15611 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Star Zeng
2014-07-02 03:20:49 +00:00
committed by lzeng14
parent ef96ba3cbe
commit d987459f8e
17 changed files with 7576 additions and 226 deletions
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16
MdeModulePkg/Bus/Usb/UsbBusPei/PeiUsbLib.c
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@@ -221,26 +221,24 @@ IsPortConnect (
}
/**
Judge if the port is connected with a low-speed usb device or not.
Get device speed according to port status.
@param PortStatus The usb port status gotten.
@param PortStatus The usb port status gotten.
@retval TRUE A low-speed usb device is connected with the port.
@retval FALSE No low-speed usb device is connected with the port.
@return Device speed value.
**/
UINTN
IsPortLowSpeedDeviceAttached (
IN UINT16 PortStatus
PeiUsbGetDeviceSpeed (
IN UINT16 PortStatus
)
{
//
// return the bit 9 value of PortStatus
//
if ((PortStatus & USB_PORT_STAT_LOW_SPEED) != 0) {
return EFI_USB_SPEED_LOW;
} else if ((PortStatus & USB_PORT_STAT_HIGH_SPEED) != 0){
return EFI_USB_SPEED_HIGH;
} else if ((PortStatus & USB_PORT_STAT_SUPER_SPEED) != 0) {
return EFI_USB_SPEED_SUPER;
} else {
return EFI_USB_SPEED_FULL;
}