/** @file\r
-\r
USB Keyboard Driver that includes the implementation of interface.\r
\r
Copyright (c) 2004 - 2008, Intel Corporation\r
#include "EfiKey.h"\r
#include "KeyBoard.h"\r
\r
-/**\r
- The Usb Keyboard Driver Entry Point.\r
-\r
- @param ImageHandle The driver image handle.\r
- @param SystemTable The system table.\r
-\r
- @return EFI_SUCCESS The component name protocol is installed.\r
- @return Others Failed to install.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-USBKeyboardDriverBindingEntryPoint (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
- );\r
-\r
-/**\r
- Check whether USB keyboard driver support this device.\r
-\r
- @param This The USB keyboard driver binding protocol.\r
- @param Controller The controller handle to check.\r
- @param RemainingDevicePath The remaining device path.\r
-\r
- @retval EFI_SUCCESS The driver supports this controller.\r
- @retval EFI_UNSUPPORTED This device isn't supported.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-USBKeyboardDriverBindingSupported (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE Controller,\r
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
- );\r
-\r
-/**\r
- Start running driver on the controller.\r
-\r
- @param This The USB keyboard driver binding instance.\r
- @param Controller The controller to check.\r
- @param RemainingDevicePath The remaining device patch.\r
-\r
- @retval EFI_SUCCESS The controller is controlled by the usb keyboard driver.\r
- @return Other The keyboard driver doesn't support this controller.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-USBKeyboardDriverBindingStart (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE Controller,\r
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
- );\r
-\r
-/**\r
- Stop handle the controller by this USB keyboard driver.\r
-\r
- @param This The USB keyboard driver binding protocol.\r
- @param Controller The controller to release.\r
- @param NumberOfChildren The number of handles in ChildHandleBuffer.\r
- @param ChildHandleBuffer The array of child handle.\r
-\r
- @retval EFI_SUCCESS The controller or children are stopped.\r
- @retval EFI_DEVICE_ERROR Failed to stop the driver.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-USBKeyboardDriverBindingStop (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE Controller,\r
- IN UINTN NumberOfChildren,\r
- IN EFI_HANDLE *ChildHandleBuffer\r
- );\r
-\r
-/**\r
- Reset Usb Keyboard.\r
-\r
- @param This The protocol instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL.\r
- @param ExtendedVerification Whether completely reset keyboard or not.\r
-\r
- @retval EFI_SUCCESS Reset keyboard successfully.\r
- @retval EFI_DEVICE_ERROR Reset keyboard failed.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-USBKeyboardReset (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- IN BOOLEAN ExtendedVerification\r
- );\r
-\r
-/**\r
- Implements EFI_SIMPLE_TEXT_INPUT_PROTOCOL.ReadKeyStroke() function.\r
-\r
- @param This The EFI_SIMPLE_TEXT_INPUT_PROTOCOL instance.\r
- @param Key A pointer to a buffer that is filled in with the keystroke\r
- information for the key that was pressed.\r
-\r
- @retval EFI_SUCCESS Read key stroke successfully.\r
- @retval Other Read key stroke failed.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-USBKeyboardReadKeyStroke (\r
- IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- OUT EFI_INPUT_KEY *Key\r
- );\r
-\r
-/**\r
- Handler function for WaitForKey event.\r
-\r
- @param Event Event to be signaled when a key is pressed.\r
- @param Context Points to USB_KB_DEV instance.\r
-\r
- @return None.\r
-**/\r
-VOID\r
-EFIAPI\r
-USBKeyboardWaitForKey (\r
- IN EFI_EVENT Event,\r
- IN VOID *Context\r
- );\r
-\r
-/**\r
- Check whether there is key pending.\r
-\r
- @param UsbKeyboardDevice The USB_KB_DEV instance.\r
-\r
- @retval EFI_SUCCESS Have key pending to read.\r
- @retval Other Parse key failed.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-USBKeyboardCheckForKey (\r
- IN USB_KB_DEV *UsbKeyboardDevice\r
- );\r
-\r
-EFI_GUID gEfiUsbKeyboardDriverGuid = {\r
- 0xa05f5f78, 0xfb3, 0x4d10, {0x90, 0x90, 0xac, 0x4, 0x6e, 0xeb, 0x7c, 0x3c}\r
-};\r
-\r
-/**\r
- Free keyboard notify list.\r
-\r
- @param ListHead The list head.\r
-\r
- @retval EFI_SUCCESS Free the notify list successfully.\r
- @retval EFI_INVALID_PARAMETER ListHead is invalid.\r
-\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-KbdFreeNotifyList (\r
- IN OUT LIST_ENTRY *ListHead\r
- ); \r
-\r
-/**\r
- Whether the pressed key matches a registered key or not.\r
-\r
- @param RegsiteredData A pointer to a buffer that is filled in with the keystroke\r
- state data for the key that was registered.\r
- @param InputData A pointer to a buffer that is filled in with the keystroke\r
- state data for the key that was pressed.\r
-\r
- @retval TRUE Key pressed matches a registered key.\r
- @retval FLASE Match failed.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-IsKeyRegistered (\r
- IN EFI_KEY_DATA *RegsiteredData,\r
- IN EFI_KEY_DATA *InputData\r
- );\r
-\r
-\r
//\r
// USB Keyboard Driver Global Variables\r
//\r
};\r
\r
/**\r
- The Usb Keyboard Driver Entry Point.\r
+ Entrypoint of USB Keyboard Driver.\r
+\r
+ This function is the entrypoint of USB Keyboard Driver. It installs Driver Binding\r
+ Protocols together with Component Name Protocols.\r
\r
- @param ImageHandle The driver image handle.\r
- @param SystemTable The system table.\r
+ @param ImageHandle The firmware allocated handle for the EFI image.\r
+ @param SystemTable A pointer to the EFI System Table.\r
\r
- @return EFI_SUCCESS The component name protocol is installed.\r
- @return Others Failed to install.\r
+ @retval EFI_SUCCESS The entry point is executed successfully.\r
\r
**/\r
EFI_STATUS\r
IN EFI_SYSTEM_TABLE *SystemTable\r
)\r
{\r
- return EfiLibInstallDriverBindingComponentName2 (\r
- ImageHandle,\r
- SystemTable,\r
- &gUsbKeyboardDriverBinding,\r
- ImageHandle,\r
- &gUsbKeyboardComponentName,\r
- &gUsbKeyboardComponentName2\r
- );\r
+ EFI_STATUS Status;\r
+\r
+ Status = EfiLibInstallDriverBindingComponentName2 (\r
+ ImageHandle,\r
+ SystemTable,\r
+ &gUsbKeyboardDriverBinding,\r
+ ImageHandle,\r
+ &gUsbKeyboardComponentName,\r
+ &gUsbKeyboardComponentName2\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+\r
+ return EFI_SUCCESS;\r
}\r
\r
/**\r
- Check whether USB keyboard driver support this device.\r
+ Check whether USB keyboard driver supports this device.\r
\r
@param This The USB keyboard driver binding protocol.\r
@param Controller The controller handle to check.\r
@param RemainingDevicePath The remaining device path.\r
\r
@retval EFI_SUCCESS The driver supports this controller.\r
- @retval EFI_UNSUPPORTED This device isn't supported.\r
+ @retval other This device isn't supported.\r
+\r
**/\r
EFI_STATUS\r
EFIAPI\r
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
)\r
{\r
- EFI_STATUS OpenStatus;\r
- EFI_USB_IO_PROTOCOL *UsbIo;\r
EFI_STATUS Status;\r
+ EFI_USB_IO_PROTOCOL *UsbIo;\r
\r
//\r
- // Check if USB_IO protocol is attached on the controller handle.\r
+ // Check if USB I/O Protocol is attached on the controller handle.\r
//\r
- OpenStatus = gBS->OpenProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- (VOID **) &UsbIo,\r
- This->DriverBindingHandle,\r
- Controller,\r
- EFI_OPEN_PROTOCOL_BY_DRIVER\r
- );\r
- if (EFI_ERROR (OpenStatus)) {\r
- return OpenStatus;\r
+ Status = gBS->OpenProtocol (\r
+ Controller,\r
+ &gEfiUsbIoProtocolGuid,\r
+ (VOID **) &UsbIo,\r
+ This->DriverBindingHandle,\r
+ Controller,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
}\r
\r
//\r
- // Use the USB I/O protocol interface to check whether the Controller is\r
+ // Use the USB I/O Protocol interface to check whether the Controller is\r
// the Keyboard controller that can be managed by this driver.\r
//\r
Status = EFI_SUCCESS;\r
}\r
\r
gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
+ Controller,\r
+ &gEfiUsbIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
\r
return Status;\r
}\r
Start running driver on the controller.\r
\r
@param This The USB keyboard driver binding instance.\r
- @param Controller The controller to check.\r
- @param RemainingDevicePath The remaining device patch.\r
+ @param Controller Handle of device to bind driver to.\r
+ @param RemainingDevicePath Optional parameter use to pick a specific child\r
+ device to start.\r
\r
@retval EFI_SUCCESS The controller is controlled by the usb keyboard driver.\r
- @return Other The keyboard driver doesn't support this controller.\r
+ @retval EFI_UNSUPPORTED No interrupt endpoint can be found.\r
+ @retval Other The keyboard driver cannot support this controller.\r
\r
**/\r
EFI_STATUS\r
UINT8 PacketSize;\r
BOOLEAN Found;\r
\r
- UsbKeyboardDevice = NULL;\r
- Found = FALSE;\r
-\r
//\r
- // Open USB_IO Protocol\r
+ // Open USB I/O Protocol\r
//\r
Status = gBS->OpenProtocol (\r
Controller,\r
}\r
\r
UsbKeyboardDevice = AllocateZeroPool (sizeof (USB_KB_DEV));\r
- if (UsbKeyboardDevice == NULL) {\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- return EFI_OUT_OF_RESOURCES;\r
- }\r
+ ASSERT (UsbKeyboardDevice != NULL);\r
+\r
//\r
// Get the Device Path Protocol on Controller's handle\r
//\r
);\r
\r
if (EFI_ERROR (Status)) {\r
- gBS->FreePool (UsbKeyboardDevice);\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- return Status;\r
+ goto ErrorExit;\r
}\r
//\r
- // Report that the usb keyboard is being enabled\r
+ // Report that the USB keyboard is being enabled\r
//\r
- KbdReportStatusCode (\r
- UsbKeyboardDevice->DevicePath,\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
EFI_PROGRESS_CODE,\r
- PcdGet32 (PcdStatusCodeValueKeyboardEnable)\r
+ PcdGet32 (PcdStatusCodeValueKeyboardEnable),\r
+ UsbKeyboardDevice->DevicePath\r
);\r
\r
//\r
// This is pretty close to keyboard detection, so log progress\r
//\r
- KbdReportStatusCode (\r
- UsbKeyboardDevice->DevicePath,\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
EFI_PROGRESS_CODE,\r
- PcdGet32 (PcdStatusCodeValueKeyboardPresenceDetect)\r
+ PcdGet32 (PcdStatusCodeValueKeyboardPresenceDetect),\r
+ UsbKeyboardDevice->DevicePath\r
);\r
\r
//\r
// Get interface & endpoint descriptor\r
//\r
UsbIo->UsbGetInterfaceDescriptor (\r
- UsbIo,\r
- &UsbKeyboardDevice->InterfaceDescriptor\r
- );\r
+ UsbIo,\r
+ &UsbKeyboardDevice->InterfaceDescriptor\r
+ );\r
\r
EndpointNumber = UsbKeyboardDevice->InterfaceDescriptor.NumEndpoints;\r
\r
+ //\r
+ // Traverse endpoints to find interrupt endpoints\r
+ //\r
+ Found = FALSE;\r
for (Index = 0; Index < EndpointNumber; Index++) {\r
\r
UsbIo->UsbGetEndpointDescriptor (\r
- UsbIo,\r
- Index,\r
- &EndpointDescriptor\r
- );\r
+ UsbIo,\r
+ Index,\r
+ &EndpointDescriptor\r
+ );\r
\r
- if ((EndpointDescriptor.Attributes & 0x03) == 0x03) {\r
+ if ((EndpointDescriptor.Attributes & 0x03) == USB_ENDPOINT_INTERRUPT) {\r
//\r
// We only care interrupt endpoint here\r
//\r
CopyMem(&UsbKeyboardDevice->IntEndpointDescriptor, &EndpointDescriptor, sizeof(EndpointDescriptor));\r
Found = TRUE;\r
+ break;\r
}\r
}\r
\r
//\r
// No interrupt endpoint found, then return unsupported.\r
//\r
- gBS->FreePool (UsbKeyboardDevice);\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- return EFI_UNSUPPORTED;\r
+ Status = EFI_UNSUPPORTED;\r
+ goto ErrorExit;\r
}\r
\r
UsbKeyboardDevice->Signature = USB_KB_DEV_SIGNATURE;\r
goto ErrorExit;\r
}\r
\r
- Status = InitKeyboardLayout (UsbKeyboardDevice);\r
- if (EFI_ERROR (Status)) {\r
- goto ErrorExit;\r
- }\r
-\r
Status = gBS->CreateEvent (\r
EVT_NOTIFY_WAIT,\r
TPL_NOTIFY,\r
);\r
\r
if (EFI_ERROR (Status)) {\r
- gBS->FreePool (UsbKeyboardDevice);\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- return Status;\r
+ goto ErrorExit;\r
+ }\r
+\r
+ Status = InitKeyboardLayout (UsbKeyboardDevice);\r
+ if (EFI_ERROR (Status)) {\r
+ goto ErrorExit;\r
}\r
\r
//\r
- // Install simple txt in protocol interface\r
- // for the usb keyboard device.\r
- // Usb keyboard is a hot plug device, and expected to work immediately\r
+ // Install Simple Text Input Protocol and Simple Text Input Ex Protocol\r
+ // for the USB keyboard device.\r
+ // USB keyboard is a hot plug device, and expected to work immediately\r
// when plugging into system, so a HotPlugDeviceGuid is installed onto\r
// the usb keyboard device handle, to distinguish it from other conventional\r
// console devices.\r
NULL\r
);\r
if (EFI_ERROR (Status)) {\r
- gBS->CloseEvent (UsbKeyboardDevice->SimpleInput.WaitForKey);\r
- gBS->FreePool (UsbKeyboardDevice);\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- return Status;\r
+ goto ErrorExit;\r
}\r
\r
//\r
- // Reset USB Keyboard Device\r
+ // Reset USB Keyboard Device exhaustively.\r
//\r
Status = UsbKeyboardDevice->SimpleInput.Reset (\r
&UsbKeyboardDevice->SimpleInput,\r
NULL,\r
NULL\r
);\r
- gBS->CloseEvent (UsbKeyboardDevice->SimpleInput.WaitForKey);\r
- gBS->FreePool (UsbKeyboardDevice);\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- return Status;\r
+ goto ErrorExit;\r
}\r
+\r
//\r
- // submit async interrupt transfer\r
+ // Submit Asynchronous Interrupt Transfer to manage this device.\r
//\r
EndpointAddr = UsbKeyboardDevice->IntEndpointDescriptor.EndpointAddress;\r
PollingInterval = UsbKeyboardDevice->IntEndpointDescriptor.Interval;\r
);\r
\r
if (EFI_ERROR (Status)) {\r
-\r
gBS->UninstallMultipleProtocolInterfaces (\r
Controller,\r
&gEfiSimpleTextInProtocolGuid,\r
NULL,\r
NULL\r
);\r
- gBS->CloseEvent (UsbKeyboardDevice->SimpleInput.WaitForKey);\r
- gBS->FreePool (UsbKeyboardDevice);\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- return Status;\r
+ goto ErrorExit;\r
}\r
\r
UsbKeyboardDevice->ControllerNameTable = NULL;\r
FALSE\r
);\r
\r
-\r
return EFI_SUCCESS;\r
\r
+//\r
+// Error handler\r
+//\r
ErrorExit:\r
if (UsbKeyboardDevice != NULL) {\r
if (UsbKeyboardDevice->SimpleInput.WaitForKey != NULL) {\r
if (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx != NULL) {\r
gBS->CloseEvent (UsbKeyboardDevice->SimpleInputEx.WaitForKeyEx);\r
}\r
- KbdFreeNotifyList (&UsbKeyboardDevice->NotifyList); \r
gBS->FreePool (UsbKeyboardDevice);\r
UsbKeyboardDevice = NULL;\r
}\r
\r
\r
/**\r
- Stop handle the controller by this USB keyboard driver.\r
+ Stop handling the controller by this USB keyboard driver.\r
\r
@param This The USB keyboard driver binding protocol.\r
@param Controller The controller to release.\r
@param ChildHandleBuffer The array of child handle.\r
\r
@retval EFI_SUCCESS The controller or children are stopped.\r
+ @retval EFI_UNSUPPORTED Simple Text In Protocol or Simple Text In Ex Protocol\r
+ is not installed on Controller.\r
@retval EFI_DEVICE_ERROR Failed to stop the driver.\r
\r
**/\r
IN EFI_HANDLE *ChildHandleBuffer\r
)\r
{\r
- EFI_STATUS Status;\r
+ EFI_STATUS Status;\r
EFI_SIMPLE_TEXT_INPUT_PROTOCOL *SimpleInput;\r
- USB_KB_DEV *UsbKeyboardDevice;\r
+ USB_KB_DEV *UsbKeyboardDevice;\r
\r
Status = gBS->OpenProtocol (\r
Controller,\r
if (EFI_ERROR (Status)) {\r
return EFI_UNSUPPORTED;\r
}\r
+\r
Status = gBS->OpenProtocol (\r
Controller,\r
&gEfiSimpleTextInputExProtocolGuid,\r
//\r
UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (SimpleInput);\r
\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiSimpleTextInProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
-\r
//\r
- // Uninstall the Asyn Interrupt Transfer from this device\r
- // will disable the key data input from this device\r
+ // The key data input from this device will be disabled.\r
//\r
- KbdReportStatusCode (\r
- UsbKeyboardDevice->DevicePath,\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
EFI_PROGRESS_CODE,\r
- PcdGet32 (PcdStatusCodeValueKeyboardDisable)\r
+ PcdGet32 (PcdStatusCodeValueKeyboardDisable),\r
+ UsbKeyboardDevice->DevicePath\r
);\r
\r
//\r
- // Destroy asynchronous interrupt transfer\r
+ // Delete the Asynchronous Interrupt Transfer from this device\r
//\r
UsbKeyboardDevice->UsbIo->UsbAsyncInterruptTransfer (\r
UsbKeyboardDevice->UsbIo,\r
);\r
\r
gBS->CloseProtocol (\r
- Controller,\r
- &gEfiUsbIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
+ Controller,\r
+ &gEfiUsbIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ Controller\r
+ );\r
\r
Status = gBS->UninstallMultipleProtocolInterfaces (\r
Controller,\r
NULL\r
);\r
//\r
- // free all the resources.\r
+ // Free all resources.\r
//\r
gBS->CloseEvent (UsbKeyboardDevice->RepeatTimer);\r
gBS->CloseEvent (UsbKeyboardDevice->DelayedRecoveryEvent);\r
gBS->FreePool (UsbKeyboardDevice);\r
\r
return Status;\r
-\r
}\r
\r
/**\r
- Reads the next keystroke from the input device. The WaitForKey Event can\r
- be used to test for existance of a keystroke via WaitForEvent () call.\r
+ Internal function to read the next keystroke from the input device.\r
\r
@param UsbKeyboardDevice Usb keyboard's private structure.\r
@param KeyData A pointer to a buffer that is filled in with the keystroke\r
OUT EFI_KEY_DATA *KeyData\r
)\r
{\r
-\r
EFI_STATUS Status;\r
UINT8 KeyChar; \r
LIST_ENTRY *Link;\r
}\r
\r
//\r
- // if there is no saved ASCII byte, fetch it\r
+ // If there is no saved ASCII byte, fetch it\r
// by calling USBKeyboardCheckForKey().\r
//\r
if (UsbKeyboardDevice->CurKeyChar == 0) {\r
Status = USBKeyboardCheckForKey (UsbKeyboardDevice);\r
if (EFI_ERROR (Status)) {\r
- return Status;\r
+ return EFI_NOT_READY;\r
}\r
}\r
\r
KeyData->Key.UnicodeChar = 0;\r
KeyData->Key.ScanCode = SCAN_NULL;\r
\r
+ //\r
+ // Store the key char read by USBKeyboardCheckForKey() and clear it.\r
+ //\r
KeyChar = UsbKeyboardDevice->CurKeyChar;\r
-\r
UsbKeyboardDevice->CurKeyChar = 0;\r
\r
//\r
// Translate saved ASCII byte into EFI_INPUT_KEY\r
//\r
- Status = USBKeyCodeToEFIScanCode (UsbKeyboardDevice, KeyChar, &KeyData->Key);\r
+ Status = UsbKeyCodeToEfiInputKey (UsbKeyboardDevice, KeyChar, &KeyData->Key);\r
if (EFI_ERROR (Status)) {\r
return Status;\r
}\r
\r
+ //\r
+ // Get current state of various toggled attributes as well as input modifier values,\r
+ // and set them as valid.\r
+ //\r
CopyMem (&KeyData->KeyState, &UsbKeyboardDevice->KeyState, sizeof (KeyData->KeyState));\r
\r
UsbKeyboardDevice->KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID;\r
UsbKeyboardDevice->KeyState.KeyToggleState = EFI_TOGGLE_STATE_VALID;\r
\r
//\r
- //Switch the control value to their original characters. In USBKeyCodeToEFIScanCode() the CTRL-Alpha characters have been switched to \r
- // their corresponding control value (ctrl-a = 0x0001 through ctrl-Z = 0x001A), here switch them back for notification function.\r
+ // Switch the control value to their original characters.\r
+ // In UsbKeyCodeToEfiInputKey() the CTRL-Alpha characters have been switched to \r
+ // their corresponding control value (ctrl-a = 0x0001 through ctrl-Z = 0x001A),\r
+ // here switch them back for notification function.\r
//\r
CopyMem (&OriginalKeyData, KeyData, sizeof (EFI_KEY_DATA));\r
if (UsbKeyboardDevice->CtrlOn != 0) {\r
}\r
\r
//\r
- // Invoke notification functions if exist\r
+ // Invoke notification functions if the key is registered.\r
//\r
- for (Link = UsbKeyboardDevice->NotifyList.ForwardLink; Link != &UsbKeyboardDevice->NotifyList; Link = Link->ForwardLink) {\r
- CurrentNotify = CR (\r
- Link, \r
- KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r
- NotifyEntry, \r
- USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE\r
- );\r
+ for (Link = GetFirstNode (&UsbKeyboardDevice->NotifyList);\r
+ !IsNull (&UsbKeyboardDevice->NotifyList, Link);\r
+ Link = GetNextNode (&UsbKeyboardDevice->NotifyList, Link)) {\r
+ CurrentNotify = CR (Link, KEYBOARD_CONSOLE_IN_EX_NOTIFY, NotifyEntry, USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE);\r
if (IsKeyRegistered (&CurrentNotify->KeyData, &OriginalKeyData)) { \r
CurrentNotify->KeyNotificationFn (&OriginalKeyData);\r
}\r
}\r
\r
/**\r
- Reset Usb Keyboard.\r
+ Reset USB Keyboard.\r
+\r
+ There are 2 types of reset for USB keyboard.\r
+ For non-exhaustive reset, only keyboard buffer is cleared.\r
+ For exhaustive reset, in addition to clearance of keyboard buffer, the hardware status\r
+ is also re-initialized.\r
\r
@param This The protocol instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL.\r
- @param ExtendedVerification Whether completely reset keyboard or not.\r
+ @param ExtendedVerification Indicates if exhaustive reset is used.\r
+ TRUE for exhaustive reset.\r
+ FALSE for non-exhaustive reset.\r
\r
- @retval EFI_SUCCESS Reset keyboard successfully.\r
- @retval EFI_DEVICE_ERROR Reset keyboard failed.\r
+ @retval EFI_SUCCESS Keyboard is reset successfully.\r
+ @retval EFI_DEVICE_ERROR Failed to reset keyboard.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
USBKeyboardReset (\r
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- IN BOOLEAN ExtendedVerification\r
+ IN BOOLEAN ExtendedVerification\r
)\r
{\r
EFI_STATUS Status;\r
\r
UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (This);\r
\r
- KbdReportStatusCode (\r
- UsbKeyboardDevice->DevicePath,\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
EFI_PROGRESS_CODE,\r
- PcdGet32 (PcdStatusCodeValueKeyboardReset)\r
+ PcdGet32 (PcdStatusCodeValueKeyboardReset),\r
+ UsbKeyboardDevice->DevicePath\r
);\r
\r
//\r
- // Non Exhaustive reset:\r
+ // Non-exhaustive reset:\r
// only reset private data structures.\r
//\r
if (!ExtendedVerification) {\r
- //\r
- // Clear the key buffer of this Usb keyboard\r
- //\r
- KbdReportStatusCode (\r
- UsbKeyboardDevice->DevicePath,\r
+ REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
EFI_PROGRESS_CODE,\r
- PcdGet32 (PcdStatusCodeValueKeyboardClearBuffer)\r
+ PcdGet32 (PcdStatusCodeValueKeyboardClearBuffer),\r
+ UsbKeyboardDevice->DevicePath\r
);\r
-\r
+ //\r
+ // Clear the key buffer of this USB keyboard\r
+ //\r
InitUSBKeyBuffer (&(UsbKeyboardDevice->KeyboardBuffer));\r
UsbKeyboardDevice->CurKeyChar = 0;\r
+\r
return EFI_SUCCESS;\r
}\r
\r
//\r
// Exhaustive reset\r
//\r
- Status = InitUSBKeyboard (UsbKeyboardDevice);\r
+ Status = InitUSBKeyboard (UsbKeyboardDevice);\r
UsbKeyboardDevice->CurKeyChar = 0;\r
if (EFI_ERROR (Status)) {\r
return EFI_DEVICE_ERROR;\r
EFIAPI\r
USBKeyboardReadKeyStroke (\r
IN EFI_SIMPLE_TEXT_INPUT_PROTOCOL *This,\r
- OUT EFI_INPUT_KEY *Key\r
+ OUT EFI_INPUT_KEY *Key\r
)\r
{\r
USB_KB_DEV *UsbKeyboardDevice;\r
@param Event Event to be signaled when a key is pressed.\r
@param Context Points to USB_KB_DEV instance.\r
\r
- @return None.\r
**/\r
VOID\r
EFIAPI\r
UsbKeyboardDevice = (USB_KB_DEV *) Context;\r
\r
if (UsbKeyboardDevice->CurKeyChar == 0) {\r
-\r
if (EFI_ERROR (USBKeyboardCheckForKey (UsbKeyboardDevice))) {\r
+ //\r
+ // If no pending key, simply return.\r
+ //\r
return ;\r
}\r
}\r
//\r
- // If has key pending, signal the event.\r
+ // If there is pending key, signal the event.\r
//\r
gBS->SignalEvent (Event);\r
}\r
\r
@param UsbKeyboardDevice The USB_KB_DEV instance.\r
\r
- @retval EFI_SUCCESS Have key pending to read.\r
- @retval Other Parse key failed.\r
+ @retval EFI_SUCCESS There is pending key to read.\r
+ @retval EFI_NOT_READY No pending key to read.\r
\r
**/\r
EFI_STATUS\r
//\r
Status = USBParseKey (UsbKeyboardDevice, &KeyChar);\r
if (EFI_ERROR (Status)) {\r
- return Status;\r
+ return EFI_NOT_READY;\r
}\r
\r
UsbKeyboardDevice->CurKeyChar = KeyChar;\r
return EFI_SUCCESS;\r
}\r
\r
-/**\r
- Report Status Code in Usb Keyboard Driver.\r
-\r
- @param DevicePath Use this to get Device Path.\r
- @param CodeType Status Code Type.\r
- @param CodeValue Status Code Value.\r
-\r
- @return None.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-KbdReportStatusCode (\r
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
- IN EFI_STATUS_CODE_TYPE CodeType,\r
- IN EFI_STATUS_CODE_VALUE Value\r
- )\r
-{\r
-\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- CodeType,\r
- Value,\r
- DevicePath\r
- );\r
-}\r
-\r
/**\r
Free keyboard notify list.\r
\r
//\r
// Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.\r
//\r
- for (Link = UsbKeyboardDevice->NotifyList.ForwardLink; Link != &UsbKeyboardDevice->NotifyList; Link = Link->ForwardLink) {\r
+ for (Link = GetFirstNode (&UsbKeyboardDevice->NotifyList);\r
+ !IsNull (&UsbKeyboardDevice->NotifyList, Link);\r
+ Link = GetNextNode (&UsbKeyboardDevice->NotifyList, Link)) {\r
CurrentNotify = CR (\r
Link, \r
KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r
\r
UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);\r
\r
+ //\r
+ // Check if NotificationHandle is returned from RegisterKeyNotify().\r
+ //\r
Status = gBS->OpenProtocol (\r
NotificationHandle,\r
&gSimpleTextInExNotifyGuid,\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
- for (Link = UsbKeyboardDevice->NotifyList.ForwardLink; Link != &UsbKeyboardDevice->NotifyList; Link = Link->ForwardLink) {\r
+ //\r
+ // Traverse notify list of USB keyboard and remove the entry of NotificationHandle.\r
+ //\r
+ for (Link = GetFirstNode (&UsbKeyboardDevice->NotifyList);\r
+ !IsNull (&UsbKeyboardDevice->NotifyList, Link);\r
+ Link = GetNextNode (&UsbKeyboardDevice->NotifyList, Link)) {\r
CurrentNotify = CR (\r
Link, \r
KEYBOARD_CONSOLE_IN_EX_NOTIFY, \r
projects / mirror_edk2.git / blobdiff