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Diffstat (limited to 'MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c')
-rw-r--r--MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c220
1 files changed, 203 insertions, 17 deletions
diff --git a/MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c b/MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c
index 021fe61129..e20e030be8 100644
--- a/MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c
+++ b/MdeModulePkg/Universal/DriverSampleDxe/DriverSample.c
@@ -20,10 +20,12 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
EFI_GUID mFormSetGuid = FORMSET_GUID;
EFI_GUID mInventoryGuid = INVENTORY_GUID;
+EFI_GUID MyEventGroupGuid = EFI_IFR_REFRESH_ID_OP_GUID;
CHAR16 VariableName[] = L"MyIfrNVData";
EFI_HANDLE DriverHandle[2] = {NULL, NULL};
DRIVER_SAMPLE_PRIVATE_DATA *PrivateData = NULL;
+EFI_EVENT mEvent;
HII_VENDOR_DEVICE_PATH mHiiVendorDevicePath0 = {
{
@@ -76,6 +78,158 @@ HII_VENDOR_DEVICE_PATH mHiiVendorDevicePath1 = {
};
/**
+ Add empty function for event process function.
+
+ @param Event The Event need to be process
+ @param Context The context of the event.
+
+**/
+VOID
+EFIAPI
+DriverSampleInternalEmptyFunction (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+}
+
+/**
+ Notification function for keystrokes.
+
+ @param[in] KeyData The key that was pressed.
+
+ @retval EFI_SUCCESS The operation was successful.
+**/
+EFI_STATUS
+EFIAPI
+NotificationFunction(
+ IN EFI_KEY_DATA *KeyData
+ )
+{
+ gBS->SignalEvent (mEvent);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Function to start monitoring for CTRL-C using SimpleTextInputEx.
+
+ @retval EFI_SUCCESS The feature is enabled.
+ @retval EFI_OUT_OF_RESOURCES There is not enough mnemory available.
+**/
+EFI_STATUS
+EFIAPI
+InternalStartMonitor(
+ VOID
+ )
+{
+ EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *SimpleEx;
+ EFI_KEY_DATA KeyData;
+ EFI_STATUS Status;
+ EFI_HANDLE *Handles;
+ UINTN HandleCount;
+ UINTN HandleIndex;
+ EFI_HANDLE NotifyHandle;
+
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiSimpleTextInputExProtocolGuid,
+ NULL,
+ &HandleCount,
+ &Handles
+ );
+ for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
+ Status = gBS->HandleProtocol (Handles[HandleIndex], &gEfiSimpleTextInputExProtocolGuid, (VOID **) &SimpleEx);
+ ASSERT_EFI_ERROR (Status);
+
+ KeyData.KeyState.KeyToggleState = 0;
+ KeyData.Key.ScanCode = 0;
+ KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;
+ KeyData.Key.UnicodeChar = L'c';
+
+ Status = SimpleEx->RegisterKeyNotify(
+ SimpleEx,
+ &KeyData,
+ NotificationFunction,
+ &NotifyHandle);
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+
+ KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;
+ Status = SimpleEx->RegisterKeyNotify(
+ SimpleEx,
+ &KeyData,
+ NotificationFunction,
+ &NotifyHandle);
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Function to stop monitoring for CTRL-C using SimpleTextInputEx.
+
+ @retval EFI_SUCCESS The feature is enabled.
+ @retval EFI_OUT_OF_RESOURCES There is not enough mnemory available.
+**/
+EFI_STATUS
+EFIAPI
+InternalStopMonitor(
+ VOID
+ )
+{
+ EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *SimpleEx;
+ EFI_STATUS Status;
+ EFI_HANDLE *Handles;
+ EFI_KEY_DATA KeyData;
+ UINTN HandleCount;
+ UINTN HandleIndex;
+ EFI_HANDLE NotifyHandle;
+
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiSimpleTextInputExProtocolGuid,
+ NULL,
+ &HandleCount,
+ &Handles
+ );
+ for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
+ Status = gBS->HandleProtocol (Handles[HandleIndex], &gEfiSimpleTextInputExProtocolGuid, (VOID **) &SimpleEx);
+ ASSERT_EFI_ERROR (Status);
+
+ KeyData.KeyState.KeyToggleState = 0;
+ KeyData.Key.ScanCode = 0;
+ KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;
+ KeyData.Key.UnicodeChar = L'c';
+
+ Status = SimpleEx->RegisterKeyNotify(
+ SimpleEx,
+ &KeyData,
+ NotificationFunction,
+ &NotifyHandle);
+ if (!EFI_ERROR (Status)) {
+ Status = SimpleEx->UnregisterKeyNotify (SimpleEx, NotifyHandle);
+ }
+
+ KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;
+ Status = SimpleEx->RegisterKeyNotify(
+ SimpleEx,
+ &KeyData,
+ NotificationFunction,
+ &NotifyHandle);
+ if (!EFI_ERROR (Status)) {
+ Status = SimpleEx->UnregisterKeyNotify (SimpleEx, NotifyHandle);
+ }
+ }
+ return EFI_SUCCESS;
+}
+
+
+/**
Encode the password using a simple algorithm.
@param Password The string to be encoded.
@@ -1124,6 +1278,7 @@ DriverCallback (
EFI_INPUT_KEY Key;
DRIVER_SAMPLE_CONFIGURATION *Configuration;
UINTN MyVarSize;
+ EFI_FORM_ID FormId;
if (((Value == NULL) && (Action != EFI_BROWSER_ACTION_FORM_OPEN) && (Action != EFI_BROWSER_ACTION_FORM_CLOSE))||
(ActionRequest == NULL)) {
@@ -1131,6 +1286,7 @@ DriverCallback (
}
+ FormId = 0;
Status = EFI_SUCCESS;
PrivateData = DRIVER_SAMPLE_PRIVATE_FROM_THIS (This);
@@ -1177,6 +1333,11 @@ DriverCallback (
HiiFreeOpCodeHandle (StartOpCodeHandle);
}
+
+ if (QuestionId == 0x1247) {
+ Status = InternalStartMonitor ();
+ ASSERT_EFI_ERROR (Status);
+ }
}
break;
@@ -1199,6 +1360,11 @@ DriverCallback (
);
} while ((Key.ScanCode != SCAN_ESC) && (Key.UnicodeChar != CHAR_CARRIAGE_RETURN));
}
+
+ if (QuestionId == 0x1247) {
+ Status = InternalStopMonitor ();
+ ASSERT_EFI_ERROR (Status);
+ }
}
break;
@@ -1424,6 +1590,7 @@ DriverCallback (
break;
case 0x5678:
+ case 0x1247:
//
// We will reach here once the Question is refreshed
//
@@ -1439,7 +1606,15 @@ DriverCallback (
//
StartLabel = (EFI_IFR_GUID_LABEL *) HiiCreateGuidOpCode (StartOpCodeHandle, &gEfiIfrTianoGuid, NULL, sizeof (EFI_IFR_GUID_LABEL));
StartLabel->ExtendOpCode = EFI_IFR_EXTEND_OP_LABEL;
- StartLabel->Number = LABEL_UPDATE2;
+ if (QuestionId == 0x5678) {
+ StartLabel->Number = LABEL_UPDATE2;
+ FormId = 0x03;
+ PrivateData->Configuration.DynamicRefresh++;
+ } else if (QuestionId == 0x1247 ) {
+ StartLabel->Number = LABEL_UPDATE3;
+ FormId = 0x05;
+ PrivateData->Configuration.RefreshGuidCount++;
+ }
HiiCreateActionOpCode (
StartOpCodeHandle, // Container for dynamic created opcodes
@@ -1453,7 +1628,7 @@ DriverCallback (
HiiUpdateForm (
PrivateData->HiiHandle[0], // HII handle
&mFormSetGuid, // Formset GUID
- 0x3, // Form ID
+ FormId, // Form ID
StartOpCodeHandle, // Label for where to insert opcodes
NULL // Insert data
);
@@ -1463,7 +1638,6 @@ DriverCallback (
//
// Refresh the Question value
//
- PrivateData->Configuration.DynamicRefresh++;
Status = gRT->SetVariable(
VariableName,
&mFormSetGuid,
@@ -1472,19 +1646,21 @@ DriverCallback (
&PrivateData->Configuration
);
- //
- // Change an EFI Variable storage (MyEfiVar) asynchronous, this will cause
- // the first statement in Form 3 be suppressed
- //
- MyVarSize = 1;
- MyVar = 111;
- Status = gRT->SetVariable(
- L"MyVar",
- &mFormSetGuid,
- EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
- MyVarSize,
- &MyVar
- );
+ if (QuestionId == 0x5678) {
+ //
+ // Change an EFI Variable storage (MyEfiVar) asynchronous, this will cause
+ // the first statement in Form 3 be suppressed
+ //
+ MyVarSize = 1;
+ MyVar = 111;
+ Status = gRT->SetVariable(
+ L"MyVar",
+ &mFormSetGuid,
+ EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS,
+ MyVarSize,
+ &MyVar
+ );
+ }
break;
case 0x1237:
@@ -1805,7 +1981,15 @@ DriverSampleInit (
FreePool (ConfigRequestHdr);
-
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_NOTIFY,
+ DriverSampleInternalEmptyFunction,
+ NULL,
+ &MyEventGroupGuid,
+ &mEvent
+ );
+ ASSERT_EFI_ERROR (Status);
//
// In default, this driver is built into Flash device image,
// the following code doesn't run.
@@ -1893,5 +2077,7 @@ DriverSampleUnload (
FreePool (PrivateData);
PrivateData = NULL;
+ gBS->CloseEvent (mEvent);
+
return EFI_SUCCESS;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-19 21:19:00 +0000