diff options
Diffstat (limited to 'MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c')
| -rw-r--r-- | MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c | 150 |
1 files changed, 99 insertions, 51 deletions
diff --git a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c index fa1c7e076b..c576b70f46 100644 --- a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c +++ b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c @@ -259,9 +259,9 @@ USBKeyboardDriverBindingStart ( UsbKeyboardDevice->SimpleInputEx.SetState = USBKeyboardSetState;
UsbKeyboardDevice->SimpleInputEx.RegisterKeyNotify = USBKeyboardRegisterKeyNotify;
UsbKeyboardDevice->SimpleInputEx.UnregisterKeyNotify = USBKeyboardUnregisterKeyNotify;
-
+
InitializeListHead (&UsbKeyboardDevice->NotifyList);
-
+
Status = gBS->CreateEvent (
EVT_TIMER | EVT_NOTIFY_SIGNAL,
TPL_NOTIFY,
@@ -546,7 +546,7 @@ USBKeyboardDriverBindingStop ( DestroyQueue (&UsbKeyboardDevice->UsbKeyQueue);
DestroyQueue (&UsbKeyboardDevice->EfiKeyQueue);
-
+
FreePool (UsbKeyboardDevice);
return Status;
@@ -676,14 +676,25 @@ USBKeyboardReadKeyStroke ( UsbKeyboardDevice = USB_KB_DEV_FROM_THIS (This);
- Status = USBKeyboardReadKeyStrokeWorker (UsbKeyboardDevice, &KeyData);
- if (EFI_ERROR (Status)) {
- return Status;
+ //
+ // Considering if the partial keystroke is enabled, there maybe a partial
+ // keystroke in the queue, so here skip the partial keystroke and get the
+ // next key from the queue
+ //
+ while (1) {
+ Status = USBKeyboardReadKeyStrokeWorker (UsbKeyboardDevice, &KeyData);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // SimpleTextIn Protocol doesn't support partial keystroke;
+ //
+ if (KeyData.Key.ScanCode == CHAR_NULL && KeyData.Key.UnicodeChar == SCAN_NULL) {
+ continue;
+ }
+ CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
+ return EFI_SUCCESS;
}
-
- CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
-
- return EFI_SUCCESS;
}
@@ -703,15 +714,42 @@ USBKeyboardWaitForKey ( )
{
USB_KB_DEV *UsbKeyboardDevice;
+ EFI_KEY_DATA KeyData;
+ EFI_TPL OldTpl;
UsbKeyboardDevice = (USB_KB_DEV *) Context;
- if (!IsQueueEmpty (&UsbKeyboardDevice->EfiKeyQueue)) {
+ //
+ // Enter critical section
+ //
+ OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
+
+ //
+ // WaitforKey doesn't suppor the partial key.
+ // Considering if the partial keystroke is enabled, there maybe a partial
+ // keystroke in the queue, so here skip the partial keystroke and get the
+ // next key from the queue
+ //
+ while (!IsQueueEmpty (&UsbKeyboardDevice->EfiKeyQueue)) {
//
// If there is pending key, signal the event.
//
+ CopyMem (
+ &KeyData,
+ UsbKeyboardDevice->EfiKeyQueue.Buffer[UsbKeyboardDevice->EfiKeyQueue.Head],
+ sizeof (EFI_KEY_DATA)
+ );
+ if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {
+ Dequeue (&UsbKeyboardDevice->EfiKeyQueue, &KeyData, sizeof (EFI_KEY_DATA));
+ continue;
+ }
gBS->SignalEvent (Event);
+ break;
}
+ //
+ // Leave critical section and return
+ //
+ gBS->RestoreTPL (OldTpl);
}
/**
@@ -733,7 +771,7 @@ USBKeyboardTimerHandler ( EFI_KEY_DATA KeyData;
UsbKeyboardDevice = (USB_KB_DEV *) Context;
-
+
//
// Fetch raw data from the USB keyboard buffer,
// and translate it into USB keycode.
@@ -783,7 +821,7 @@ KbdFreeNotifyList ( RemoveEntryList (Link);
FreePool (NotifyNode);
}
-
+
return EFI_SUCCESS;
}
@@ -804,29 +842,29 @@ IsKeyRegistered ( )
{
ASSERT (RegsiteredData != NULL && InputData != NULL);
-
+
if ((RegsiteredData->Key.ScanCode != InputData->Key.ScanCode) ||
(RegsiteredData->Key.UnicodeChar != InputData->Key.UnicodeChar)) {
- return FALSE;
- }
-
+ return FALSE;
+ }
+
//
// Assume KeyShiftState/KeyToggleState = 0 in Registered key data means these state could be ignored.
//
if (RegsiteredData->KeyState.KeyShiftState != 0 &&
RegsiteredData->KeyState.KeyShiftState != InputData->KeyState.KeyShiftState) {
- return FALSE;
- }
+ return FALSE;
+ }
if (RegsiteredData->KeyState.KeyToggleState != 0 &&
RegsiteredData->KeyState.KeyToggleState != InputData->KeyState.KeyToggleState) {
- return FALSE;
- }
-
+ return FALSE;
+ }
+
return TRUE;
}
//
-// Simple Text Input Ex protocol functions
+// Simple Text Input Ex protocol functions
//
/**
Resets the input device hardware.
@@ -867,6 +905,9 @@ USBKeyboardResetEx ( return EFI_DEVICE_ERROR;
}
+ UsbKeyboardDevice->KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID;
+ UsbKeyboardDevice->KeyState.KeyToggleState = EFI_TOGGLE_STATE_VALID;
+
return EFI_SUCCESS;
}
@@ -901,7 +942,7 @@ USBKeyboardReadKeyStrokeEx ( UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);
return USBKeyboardReadKeyStrokeWorker (UsbKeyboardDevice, KeyData);
-
+
}
/**
@@ -933,7 +974,8 @@ USBKeyboardSetState ( UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);
- if ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) {
+ if (((UsbKeyboardDevice->KeyState.KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID) ||
+ ((*KeyToggleState & EFI_TOGGLE_STATE_VALID) != EFI_TOGGLE_STATE_VALID)) {
return EFI_UNSUPPORTED;
}
@@ -944,7 +986,8 @@ USBKeyboardSetState ( UsbKeyboardDevice->ScrollOn = FALSE;
UsbKeyboardDevice->NumLockOn = FALSE;
UsbKeyboardDevice->CapsOn = FALSE;
-
+ UsbKeyboardDevice->IsSupportPartialKey = FALSE;
+
if ((*KeyToggleState & EFI_SCROLL_LOCK_ACTIVE) == EFI_SCROLL_LOCK_ACTIVE) {
UsbKeyboardDevice->ScrollOn = TRUE;
}
@@ -954,11 +997,16 @@ USBKeyboardSetState ( if ((*KeyToggleState & EFI_CAPS_LOCK_ACTIVE) == EFI_CAPS_LOCK_ACTIVE) {
UsbKeyboardDevice->CapsOn = TRUE;
}
+ if ((*KeyToggleState & EFI_KEY_STATE_EXPOSED) == EFI_KEY_STATE_EXPOSED) {
+ UsbKeyboardDevice->IsSupportPartialKey = TRUE;
+ }
SetKeyLED (UsbKeyboardDevice);
+ UsbKeyboardDevice->KeyState.KeyToggleState = *KeyToggleState;
+
return EFI_SUCCESS;
-
+
}
/**
@@ -989,7 +1037,7 @@ USBKeyboardRegisterKeyNotify ( KEYBOARD_CONSOLE_IN_EX_NOTIFY *NewNotify;
LIST_ENTRY *Link;
LIST_ENTRY *NotifyList;
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {
return EFI_INVALID_PARAMETER;
@@ -1001,43 +1049,43 @@ USBKeyboardRegisterKeyNotify ( // Return EFI_SUCCESS if the (KeyData, NotificationFunction) is already registered.
//
NotifyList = &UsbKeyboardDevice->NotifyList;
-
+
for (Link = GetFirstNode (NotifyList);
!IsNull (NotifyList, Link);
Link = GetNextNode (NotifyList, Link)) {
CurrentNotify = CR (
- Link,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,
- NotifyEntry,
+ Link,
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY,
+ NotifyEntry,
USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE
);
- if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
+ if (IsKeyRegistered (&CurrentNotify->KeyData, KeyData)) {
if (CurrentNotify->KeyNotificationFn == KeyNotificationFunction) {
- *NotifyHandle = CurrentNotify->NotifyHandle;
+ *NotifyHandle = CurrentNotify->NotifyHandle;
return EFI_SUCCESS;
}
}
}
-
+
//
// Allocate resource to save the notification function
- //
+ //
NewNotify = (KEYBOARD_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool (sizeof (KEYBOARD_CONSOLE_IN_EX_NOTIFY));
if (NewNotify == NULL) {
return EFI_OUT_OF_RESOURCES;
}
- NewNotify->Signature = USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE;
+ NewNotify->Signature = USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE;
NewNotify->KeyNotificationFn = KeyNotificationFunction;
NewNotify->NotifyHandle = (EFI_HANDLE) NewNotify;
CopyMem (&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));
InsertTailList (&UsbKeyboardDevice->NotifyList, &NewNotify->NotifyEntry);
- *NotifyHandle = NewNotify->NotifyHandle;
-
+ *NotifyHandle = NewNotify->NotifyHandle;
+
return EFI_SUCCESS;
-
+
}
/**
@@ -1064,14 +1112,14 @@ USBKeyboardUnregisterKeyNotify ( if (NotificationHandle == NULL) {
return EFI_INVALID_PARAMETER;
- }
+ }
if (((KEYBOARD_CONSOLE_IN_EX_NOTIFY *) NotificationHandle)->Signature != USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE) {
return EFI_INVALID_PARAMETER;
- }
-
+ }
+
UsbKeyboardDevice = TEXT_INPUT_EX_USB_KB_DEV_FROM_THIS (This);
-
+
//
// Traverse notify list of USB keyboard and remove the entry of NotificationHandle.
//
@@ -1080,18 +1128,18 @@ USBKeyboardUnregisterKeyNotify ( !IsNull (NotifyList, Link);
Link = GetNextNode (NotifyList, Link)) {
CurrentNotify = CR (
- Link,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,
- NotifyEntry,
+ Link,
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY,
+ NotifyEntry,
USB_KB_CONSOLE_IN_EX_NOTIFY_SIGNATURE
- );
+ );
if (CurrentNotify->NotifyHandle == NotificationHandle) {
//
// Remove the notification function from NotifyList and free resources
//
- RemoveEntryList (&CurrentNotify->NotifyEntry);
+ RemoveEntryList (&CurrentNotify->NotifyEntry);
- FreePool (CurrentNotify);
+ FreePool (CurrentNotify);
return EFI_SUCCESS;
}
}
@@ -1099,6 +1147,6 @@ USBKeyboardUnregisterKeyNotify ( //
// Cannot find the matching entry in database.
//
- return EFI_INVALID_PARAMETER;
+ return EFI_INVALID_PARAMETER;
}
|