diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c')
| -rw-r--r-- | IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c | 274 |
1 files changed, 155 insertions, 119 deletions
diff --git a/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c b/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c index eb3c9338ce..a968a3b5f3 100644 --- a/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c +++ b/IntelFrameworkModulePkg/Bus/Isa/Ps2KeyboardDxe/Ps2KbdTextIn.c @@ -32,31 +32,9 @@ IsEfikeyBufEmpty ( return (BOOLEAN) (Queue->Head == Queue->Tail);
}
-
-
-/**
- Push one key data to the EFI key buffer.
-
- @param Queue Pointer to instance of EFI_KEY_QUEUE.
- @param KeyData The key data to push.
-**/
-VOID
-PushEfikeyBufTail (
- IN EFI_KEY_QUEUE *Queue,
- IN EFI_KEY_DATA *KeyData
- )
-{
- if ((Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT == Queue->Head) {
- return;
- }
-
- CopyMem (&Queue->Buffer[Queue->Tail], KeyData, sizeof (EFI_KEY_DATA));
- Queue->Tail = (Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT;
-}
-
/**
Read & remove one key data from the EFI key buffer.
-
+
@param Queue Pointer to instance of EFI_KEY_QUEUE.
@param KeyData Receive the key data.
@@ -66,7 +44,7 @@ PushEfikeyBufTail ( EFI_STATUS
PopEfikeyBufHead (
IN EFI_KEY_QUEUE *Queue,
- OUT EFI_KEY_DATA *KeyData
+ OUT EFI_KEY_DATA *KeyData OPTIONAL
)
{
if (IsEfikeyBufEmpty (Queue)) {
@@ -75,22 +53,46 @@ PopEfikeyBufHead ( //
// Retrieve and remove the values
//
- CopyMem (KeyData, &Queue->Buffer[Queue->Head], sizeof (EFI_KEY_DATA));
+ if (KeyData != NULL) {
+ CopyMem (KeyData, &Queue->Buffer[Queue->Head], sizeof (EFI_KEY_DATA));
+ }
Queue->Head = (Queue->Head + 1) % KEYBOARD_EFI_KEY_MAX_COUNT;
return EFI_SUCCESS;
}
/**
+ Push one key data to the EFI key buffer.
+
+ @param Queue Pointer to instance of EFI_KEY_QUEUE.
+ @param KeyData The key data to push.
+**/
+VOID
+PushEfikeyBufTail (
+ IN EFI_KEY_QUEUE *Queue,
+ IN EFI_KEY_DATA *KeyData
+ )
+{
+ if ((Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT == Queue->Head) {
+ //
+ // If Queue is full, pop the one from head.
+ //
+ PopEfikeyBufHead (Queue, NULL);
+ }
+ CopyMem (&Queue->Buffer[Queue->Tail], KeyData, sizeof (EFI_KEY_DATA));
+ Queue->Tail = (Queue->Tail + 1) % KEYBOARD_EFI_KEY_MAX_COUNT;
+}
+
+/**
Judge whether is a registed key
- @param RegsiteredData A pointer to a buffer that is filled in with the keystroke
+ @param RegsiteredData A pointer to a buffer that is filled in with the keystroke
state data for the key that was registered.
- @param InputData A pointer to a buffer that is filled in with the keystroke
+ @param InputData A pointer to a buffer that is filled in with the keystroke
state data for the key that was pressed.
@retval TRUE Key be pressed matches a registered key.
- @retval FLASE Match failed.
-
+ @retval FLASE Match failed.
+
**/
BOOLEAN
IsKeyRegistered (
@@ -100,42 +102,42 @@ 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;
}
/**
- Reads the next keystroke from the input device. The WaitForKey Event can
+ Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
-
+
@param ConsoleInDev Ps2 Keyboard private structure
- @param KeyData A pointer to a buffer that is filled in with the keystroke
+ @param KeyData A pointer to a buffer that is filled in with the keystroke
state data for the key that was pressed.
-
+
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data availiable.
- @retval EFI_DEVICE_ERROR The keystroke information was not returned due to
+ @retval EFI_DEVICE_ERROR The keystroke information was not returned due to
hardware errors.
- @retval EFI_INVALID_PARAMETER KeyData is NULL.
+ @retval EFI_INVALID_PARAMETER KeyData is NULL.
**/
EFI_STATUS
@@ -147,18 +149,18 @@ KeyboardReadKeyStrokeWorker ( {
EFI_STATUS Status;
EFI_TPL OldTpl;
-
+
if (KeyData == NULL) {
return EFI_INVALID_PARAMETER;
}
-
+
//
// Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
KeyboardTimerHandler (NULL, ConsoleInDev);
-
+
if (ConsoleInDev->KeyboardErr) {
Status = EFI_DEVICE_ERROR;
} else {
@@ -173,9 +175,9 @@ KeyboardReadKeyStrokeWorker ( Perform 8042 controller and keyboard initialization which implement SIMPLE_TEXT_IN.Reset()
@param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL
- @param ExtendedVerification Indicate that the driver may perform a more
- exhaustive verification operation of the device during
- reset, now this par is ignored in this driver
+ @param ExtendedVerification Indicate that the driver may perform a more
+ exhaustive verification operation of the device during
+ reset, now this par is ignored in this driver
**/
EFI_STATUS
@@ -250,7 +252,7 @@ KeyboardEfiReset ( Retrieve key values for driver user which implement SIMPLE_TEXT_IN.ReadKeyStroke().
@param This Pointer to instance of EFI_SIMPLE_TEXT_INPUT_PROTOCOL
- @param Key The output buffer for key value
+ @param Key The output buffer for key value
@retval EFI_SUCCESS success to read key stroke
**/
@@ -266,14 +268,29 @@ KeyboardReadKeyStroke ( EFI_KEY_DATA KeyData;
ConsoleIn = KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
- Status = KeyboardReadKeyStrokeWorker (ConsoleIn, &KeyData);
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
- return EFI_SUCCESS;
+ //
+ // 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) {
+ //
+ // If there is no pending key, then return.
+ //
+ Status = KeyboardReadKeyStrokeWorker (ConsoleIn, &KeyData);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ //
+ // If it is partial keystroke, skip it.
+ //
+ if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {
+ continue;
+ }
+ CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));
+ return EFI_SUCCESS;
+ }
}
/**
@@ -293,6 +310,7 @@ KeyboardWaitForKey ( {
EFI_TPL OldTpl;
KEYBOARD_CONSOLE_IN_DEV *ConsoleIn;
+ EFI_KEY_DATA KeyData;
ConsoleIn = (KEYBOARD_CONSOLE_IN_DEV *) Context;
@@ -300,16 +318,31 @@ KeyboardWaitForKey ( // Enter critical section
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
-
+
KeyboardTimerHandler (NULL, ConsoleIn);
if (!ConsoleIn->KeyboardErr) {
//
- // Someone is waiting on the keyboard event, if there's
- // a key pending, signal the event
+ // 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
//
- if (!IsEfikeyBufEmpty (&ConsoleIn->EfiKeyQueue)) {
+ while (!IsEfikeyBufEmpty (&ConsoleIn->EfiKeyQueue)) {
+ CopyMem (
+ &KeyData,
+ &(ConsoleIn->EfiKeyQueue.Buffer[ConsoleIn->EfiKeyQueue.Head]),
+ sizeof (EFI_KEY_DATA)
+ );
+ if (KeyData.Key.ScanCode == SCAN_NULL && KeyData.Key.UnicodeChar == CHAR_NULL) {
+ PopEfikeyBufHead (&ConsoleIn->EfiKeyQueue, &KeyData);
+ continue;
+ }
+ //
+ // if there is pending value key, signal the event.
+ //
gBS->SignalEvent (Event);
+ break;
}
}
//
@@ -344,7 +377,7 @@ KeyboardWaitForKeyEx ( @param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
- @retval EFI_DEVICE_ERROR The device is not functioning properly and could
+ @retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
@@ -358,28 +391,28 @@ KeyboardEfiResetEx ( {
KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
- ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
+ ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
return ConsoleInDev->ConIn.Reset (
- &ConsoleInDev->ConIn,
+ &ConsoleInDev->ConIn,
ExtendedVerification
);
}
/**
- Reads the next keystroke from the input device. The WaitForKey Event can
+ Reads the next keystroke from the input device. The WaitForKey Event can
be used to test for existance of a keystroke via WaitForEvent () call.
@param This Protocol instance pointer.
- @param KeyData A pointer to a buffer that is filled in with the keystroke
+ @param KeyData A pointer to a buffer that is filled in with the keystroke
state data for the key that was pressed.
@retval EFI_SUCCESS The keystroke information was returned.
@retval EFI_NOT_READY There was no keystroke data availiable.
- @retval EFI_DEVICE_ERROR The keystroke information was not returned due to
+ @retval EFI_DEVICE_ERROR The keystroke information was not returned due to
hardware errors.
- @retval EFI_INVALID_PARAMETER KeyData is NULL.
+ @retval EFI_INVALID_PARAMETER KeyData is NULL.
**/
EFI_STATUS
@@ -398,23 +431,22 @@ KeyboardReadKeyStrokeEx ( ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
return KeyboardReadKeyStrokeWorker (ConsoleInDev, KeyData);
-
}
/**
Set certain state for the input device.
@param This Protocol instance pointer.
- @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
+ @param KeyToggleState A pointer to the EFI_KEY_TOGGLE_STATE to set the
state for the input device.
@retval EFI_SUCCESS The device state was set successfully.
- @retval EFI_DEVICE_ERROR The device is not functioning correctly and could
+ @retval EFI_DEVICE_ERROR The device is not functioning correctly and could
not have the setting adjusted.
@retval EFI_UNSUPPORTED The device does not have the ability to set its state.
- @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
+ @retval EFI_INVALID_PARAMETER KeyToggleState is NULL.
-**/
+**/
EFI_STATUS
EFIAPI
KeyboardSetState (
@@ -430,7 +462,7 @@ KeyboardSetState ( if (KeyToggleState == NULL) {
return EFI_INVALID_PARAMETER;
}
-
+
ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
//
@@ -447,30 +479,34 @@ KeyboardSetState ( Status = EFI_UNSUPPORTED;
goto Exit;
}
-
+
//
// Update the status light
//
- ConsoleInDev->ScrollLock = FALSE;
- ConsoleInDev->NumLock = FALSE;
- ConsoleInDev->CapsLock = FALSE;
+ ConsoleInDev->ScrollLock = FALSE;
+ ConsoleInDev->NumLock = FALSE;
+ ConsoleInDev->CapsLock = FALSE;
+ ConsoleInDev->IsSupportPartialKey = FALSE;
if ((*KeyToggleState & EFI_SCROLL_LOCK_ACTIVE) == EFI_SCROLL_LOCK_ACTIVE) {
ConsoleInDev->ScrollLock = TRUE;
- }
+ }
if ((*KeyToggleState & EFI_NUM_LOCK_ACTIVE) == EFI_NUM_LOCK_ACTIVE) {
ConsoleInDev->NumLock = TRUE;
}
if ((*KeyToggleState & EFI_CAPS_LOCK_ACTIVE) == EFI_CAPS_LOCK_ACTIVE) {
ConsoleInDev->CapsLock = TRUE;
}
+ if ((*KeyToggleState & EFI_KEY_STATE_EXPOSED) == EFI_KEY_STATE_EXPOSED) {
+ ConsoleInDev->IsSupportPartialKey = TRUE;
+ }
Status = UpdateStatusLights (ConsoleInDev);
if (EFI_ERROR (Status)) {
- Status = EFI_DEVICE_ERROR;
+ Status = EFI_DEVICE_ERROR;
}
-Exit:
+Exit:
//
// Leave critical section and return
//
@@ -484,17 +520,17 @@ Exit: Register a notification function for a particular keystroke for the input device.
@param This Protocol instance pointer.
- @param KeyData A pointer to a buffer that is filled in with the keystroke
+ @param KeyData A pointer to a buffer that is filled in with the keystroke
information data for the key that was pressed.
- @param KeyNotificationFunction Points to the function to be called when the key
- sequence is typed specified by KeyData.
- @param NotifyHandle Points to the unique handle assigned to the registered notification.
+ @param KeyNotificationFunction Points to the function to be called when the key
+ sequence is typed specified by KeyData.
+ @param NotifyHandle Points to the unique handle assigned to the registered notification.
@retval EFI_SUCCESS The notification function was registered successfully.
@retval EFI_OUT_OF_RESOURCES Unable to allocate resources for necesssary data structures.
- @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle or KeyNotificationFunction is NULL.
-
-**/
+ @retval EFI_INVALID_PARAMETER KeyData or NotifyHandle or KeyNotificationFunction is NULL.
+
+**/
EFI_STATUS
EFIAPI
KeyboardRegisterKeyNotify (
@@ -508,13 +544,13 @@ KeyboardRegisterKeyNotify ( KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
EFI_TPL OldTpl;
LIST_ENTRY *Link;
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
KEYBOARD_CONSOLE_IN_EX_NOTIFY *NewNotify;
if (KeyData == NULL || NotifyHandle == NULL || KeyNotificationFunction == NULL) {
return EFI_INVALID_PARAMETER;
}
-
+
ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
//
@@ -527,36 +563,36 @@ KeyboardRegisterKeyNotify ( //
for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {
CurrentNotify = CR (
- Link,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,
- NotifyEntry,
+ Link,
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY,
+ NotifyEntry,
KEYBOARD_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;
Status = EFI_SUCCESS;
goto Exit;
}
}
- }
-
+ }
+
//
// Allocate resource to save the notification function
- //
+ //
NewNotify = (KEYBOARD_CONSOLE_IN_EX_NOTIFY *) AllocateZeroPool (sizeof (KEYBOARD_CONSOLE_IN_EX_NOTIFY));
if (NewNotify == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto Exit;
}
- NewNotify->Signature = KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE;
+ NewNotify->Signature = KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE;
NewNotify->KeyNotificationFn = KeyNotificationFunction;
NewNotify->NotifyHandle = (EFI_HANDLE) NewNotify;
CopyMem (&NewNotify->KeyData, KeyData, sizeof (EFI_KEY_DATA));
InsertTailList (&ConsoleInDev->NotifyList, &NewNotify->NotifyEntry);
- *NotifyHandle = NewNotify->NotifyHandle;
+ *NotifyHandle = NewNotify->NotifyHandle;
Status = EFI_SUCCESS;
Exit:
@@ -564,21 +600,21 @@ Exit: // Leave critical section and return
//
gBS->RestoreTPL (OldTpl);
- return Status;
+ return Status;
}
/**
Remove a registered notification function from a particular keystroke.
- @param This Protocol instance pointer.
+ @param This Protocol instance pointer.
@param NotificationHandle The handle of the notification function being unregistered.
-
+
@retval EFI_SUCCESS The notification function was unregistered successfully.
@retval EFI_INVALID_PARAMETER The NotificationHandle is invalid.
-
-**/
+
+**/
EFI_STATUS
EFIAPI
KeyboardUnregisterKeyNotify (
@@ -590,37 +626,37 @@ KeyboardUnregisterKeyNotify ( KEYBOARD_CONSOLE_IN_DEV *ConsoleInDev;
EFI_TPL OldTpl;
LIST_ENTRY *Link;
- KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY *CurrentNotify;
if (NotificationHandle == NULL) {
return EFI_INVALID_PARAMETER;
- }
+ }
if (((KEYBOARD_CONSOLE_IN_EX_NOTIFY *) NotificationHandle)->Signature != KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE) {
return EFI_INVALID_PARAMETER;
- }
-
+ }
+
ConsoleInDev = TEXT_INPUT_EX_KEYBOARD_CONSOLE_IN_DEV_FROM_THIS (This);
-
+
//
// Enter critical section
//
- OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
+ OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
for (Link = ConsoleInDev->NotifyList.ForwardLink; Link != &ConsoleInDev->NotifyList; Link = Link->ForwardLink) {
CurrentNotify = CR (
- Link,
- KEYBOARD_CONSOLE_IN_EX_NOTIFY,
- NotifyEntry,
+ Link,
+ KEYBOARD_CONSOLE_IN_EX_NOTIFY,
+ NotifyEntry,
KEYBOARD_CONSOLE_IN_EX_NOTIFY_SIGNATURE
- );
+ );
if (CurrentNotify->NotifyHandle == NotificationHandle) {
//
// Remove the notification function from NotifyList and free resources
//
- RemoveEntryList (&CurrentNotify->NotifyEntry);
-
- gBS->FreePool (CurrentNotify);
+ RemoveEntryList (&CurrentNotify->NotifyEntry);
+
+ gBS->FreePool (CurrentNotify);
Status = EFI_SUCCESS;
goto Exit;
}
|