diff options
Diffstat (limited to 'EdkModulePkg/Universal/WatchdogTimer/Dxe/WatchDogTimer.c')
| -rw-r--r-- | EdkModulePkg/Universal/WatchdogTimer/Dxe/WatchDogTimer.c | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/EdkModulePkg/Universal/WatchdogTimer/Dxe/WatchDogTimer.c b/EdkModulePkg/Universal/WatchdogTimer/Dxe/WatchDogTimer.c deleted file mode 100644 index e38def3b05..0000000000 --- a/EdkModulePkg/Universal/WatchdogTimer/Dxe/WatchDogTimer.c +++ /dev/null @@ -1,311 +0,0 @@ -/*++
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- WatchDogTimer.c
-
-Abstract:
-
- Generic watchdog timer implemenetation using EFI APIs
-
-Revision History
-
---*/
-
-#include "WatchDogTimer.h"
-
-//
-// Handle for the Watchdog Timer Architectural Protocol instance produced by this driver
-//
-EFI_HANDLE mWatchdogTimerHandle = NULL;
-
-//
-// The Watchdog Timer Architectural Protocol instance produced by this driver
-//
-EFI_WATCHDOG_TIMER_ARCH_PROTOCOL mWatchdogTimer = {
- WatchdogTimerDriverRegisterHandler,
- WatchdogTimerDriverSetTimerPeriod,
- WatchdogTimerDriverGetTimerPeriod
-};
-
-//
-// The watchdog timer period in 100 nS units
-//
-UINT64 mWatchdogTimerPeriod = 0;
-
-//
-// The notification function to call if the watchdig timer fires
-//
-EFI_WATCHDOG_TIMER_NOTIFY mWatchdogTimerNotifyFunction = NULL;
-
-//
-// The one-shot timer event that is armed when the watchdog timer is enabled
-//
-EFI_EVENT mWatchdogTimerEvent;
-
-//
-// Worker Functions
-//
-STATIC
-VOID
-EFIAPI
-WatchdogTimerDriverExpires (
- IN EFI_EVENT Timer,
- IN VOID *Context
- )
-/*++
-
- Routine Description:
-
- Notification function that is called if the watchdog timer is fired. If a
- handler has been registered with the Watchdog Timer Architectural Protocol,
- then that handler is called passing in the time period that has passed that
- cause the watchdog timer to fire. Then, a call to the Runtime Service
- ResetSystem() is made to reset the platform.
-
- Arguments:
-
- Timer - The one-shot timer event that was signaled when the watchdog timer
- expired.
-
- Context - The context that was registered when the event Timer was created.
-
- Returns:
-
- None.
-
---*/
-{
- //
- // Report error code before exiting
- //
- REPORT_STATUS_CODE (
- EFI_ERROR_CODE | EFI_ERROR_MINOR,
- (EFI_COMPUTING_UNIT_HOST_PROCESSOR | EFI_CU_HP_EC_TIMER_EXPIRED)
- );
-
- //
- // If a notification function has been registered, then call it
- //
- if (mWatchdogTimerNotifyFunction != NULL) {
- mWatchdogTimerNotifyFunction (mWatchdogTimerPeriod);
- }
- //
- // Reset the platform
- //
- gRT->ResetSystem (EfiResetCold, EFI_TIMEOUT, 0, NULL);
-}
-
-EFI_STATUS
-EFIAPI
-WatchdogTimerDriverRegisterHandler (
- IN EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
- IN EFI_WATCHDOG_TIMER_NOTIFY NotifyFunction
- )
-/*++
-
-Routine Description:
-
- This function registers a handler that is to be invoked when the watchdog
- timer fires. By default, the EFI_WATCHDOG_TIMER protocol will call the
- Runtime Service ResetSystem() when the watchdog timer fires. If a
- NotifyFunction is registered, then the NotifyFunction will be called before
- the Runtime Service ResetSystem() is called. If NotifyFunction is NULL, then
- the watchdog handler is unregistered. If a watchdog handler is registered,
- then EFI_SUCCESS is returned. If an attempt is made to register a handler
- when a handler is already registered, then EFI_ALREADY_STARTED is returned.
- If an attempt is made to uninstall a handler when a handler is not installed,
- then return EFI_INVALID_PARAMETER.
-
-Arguments:
-
- This - The EFI_WATCHDOG_TIMER_ARCH_PROTOCOL instance.
-
- NotifyFunction - The function to call when the watchdog timer fires. If this
- is NULL, then the handler will be unregistered.
-
-Returns:
-
- EFI_SUCCESS - The watchdog timer handler was registered or
- unregistered.
-
- EFI_ALREADY_STARTED - NotifyFunction is not NULL, and a handler is already
- registered.
-
- EFI_INVALID_PARAMETER - NotifyFunction is NULL, and a handler was not
- previously registered.
-
---*/
-{
- if (NotifyFunction == NULL && mWatchdogTimerNotifyFunction == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (NotifyFunction != NULL && mWatchdogTimerNotifyFunction != NULL) {
- return EFI_ALREADY_STARTED;
- }
-
- mWatchdogTimerNotifyFunction = NotifyFunction;
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-WatchdogTimerDriverSetTimerPeriod (
- IN EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
- IN UINT64 TimerPeriod
- )
-/*++
-
-Routine Description:
-
- This function sets the amount of time to wait before firing the watchdog
- timer to TimerPeriod 100 nS units. If TimerPeriod is 0, then the watchdog
- timer is disabled.
-
-Arguments:
-
- This - The EFI_WATCHDOG_TIMER_ARCH_PROTOCOL instance.
-
- TimerPeriod - The amount of time in 100 nS units to wait before the watchdog
- timer is fired. If TimerPeriod is zero, then the watchdog
- timer is disabled.
-
-Returns:
-
- EFI_SUCCESS - The watchdog timer has been programmed to fire in Time
- 100 nS units.
-
- EFI_DEVICE_ERROR - A watchdog timer could not be programmed due to a device
- error.
-
---*/
-{
- mWatchdogTimerPeriod = TimerPeriod;
-
- return gBS->SetTimer (
- mWatchdogTimerEvent,
- (mWatchdogTimerPeriod == 0) ? TimerCancel : TimerRelative,
- mWatchdogTimerPeriod
- );
-}
-
-EFI_STATUS
-EFIAPI
-WatchdogTimerDriverGetTimerPeriod (
- IN EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *This,
- IN UINT64 *TimerPeriod
- )
-/*++
-
-Routine Description:
-
- This function retrieves the amount of time the system will wait before firing
- the watchdog timer. This period is returned in TimerPeriod, and EFI_SUCCESS
- is returned. If TimerPeriod is NULL, then EFI_INVALID_PARAMETER is returned.
-
-Arguments:
-
- This - The EFI_WATCHDOG_TIMER_ARCH_PROTOCOL instance.
-
- TimerPeriod - A pointer to the amount of time in 100 nS units that the system
- will wait before the watchdog timer is fired. If TimerPeriod of
- zero is returned, then the watchdog timer is disabled.
-
-Returns:
-
- EFI_SUCCESS - The amount of time that the system will wait before
- firing the watchdog timer was returned in TimerPeriod.
-
- EFI_INVALID_PARAMETER - TimerPeriod is NULL.
-
---*/
-{
- if (TimerPeriod == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- *TimerPeriod = mWatchdogTimerPeriod;
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-WatchdogTimerDriverInitialize (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-/*++
-
-Routine Description:
-
- Initialize the Watchdog Timer Architectural Protocol driver
-
-Arguments:
-
- ImageHandle - ImageHandle of the loaded driver
-
- SystemTable - Pointer to the System Table
-
-Returns:
-
- EFI_SUCCESS - Timer Architectural Protocol created
-
- EFI_OUT_OF_RESOURCES - Not enough resources available to initialize driver.
-
- EFI_DEVICE_ERROR - A device error occured attempting to initialize the driver.
-
---*/
-{
- EFI_STATUS Status;
-
- REPORT_STATUS_CODE (
- EFI_PROGRESS_CODE,
- (EFI_COMPUTING_UNIT_HOST_PROCESSOR | EFI_SW_PC_INIT_BEGIN)
- );
- //
- // Make sure the Watchdog Timer Architectural Protocol is not already installed in the system
- //
- ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiWatchdogTimerArchProtocolGuid);
-
- //
- // Create the timer event used to implement a simple watchdog timer
- //
- Status = gBS->CreateEvent (
- EVT_TIMER | EVT_NOTIFY_SIGNAL,
- TPL_NOTIFY,
- WatchdogTimerDriverExpires,
- NULL,
- &mWatchdogTimerEvent
- );
- ASSERT_EFI_ERROR (Status);
-
- //
- // Install the Watchdog Timer Arch Protocol onto a new handle
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &mWatchdogTimerHandle,
- &gEfiWatchdogTimerArchProtocolGuid,
- &mWatchdogTimer,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
-
- REPORT_STATUS_CODE (
- EFI_PROGRESS_CODE,
- (EFI_COMPUTING_UNIT_HOST_PROCESSOR | EFI_SW_PC_INIT_END)
- );
-
- return Status;
-}
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