diff options
author | Leif Lindholm <leif.lindholm@linaro.org> | 2014-05-22 12:19:33 +0100 |
---|---|---|
committer | Leif Lindholm <leif.lindholm@linaro.org> | 2014-05-22 12:19:33 +0100 |
commit | 7ae0e252b114b6f07ab772f8cbd8fa25e588ab2b (patch) | |
tree | af55f51d89b6e50fa2e15d61d5a23e4ec54b2992 /HisiPkg/Drivers | |
parent | a50bf4634f25834e3a99078eba7dec8fa7e10418 (diff) |
HiSilicon D01 platform cleanups
Diffstat (limited to 'HisiPkg/Drivers')
-rw-r--r-- | HisiPkg/Drivers/PL390Gic/PL390GicDxe.c | 850 | ||||
-rw-r--r-- | HisiPkg/Drivers/PL390Gic/PL390GicDxe.inf | 118 | ||||
-rw-r--r-- | HisiPkg/Drivers/TimerDxe/TimerDxe.c | 1114 | ||||
-rw-r--r-- | HisiPkg/Drivers/TimerDxe/TimerDxe.inf | 118 |
4 files changed, 1100 insertions, 1100 deletions
diff --git a/HisiPkg/Drivers/PL390Gic/PL390GicDxe.c b/HisiPkg/Drivers/PL390Gic/PL390GicDxe.c index ada262d7d..cd653a944 100644 --- a/HisiPkg/Drivers/PL390Gic/PL390GicDxe.c +++ b/HisiPkg/Drivers/PL390Gic/PL390GicDxe.c @@ -1,425 +1,425 @@ -/*++ - -Copyright (c) 2009, Hewlett-Packard Company. All rights reserved.<BR> -Portions copyright (c) 2010, Apple Inc. All rights reserved.<BR> -Portions copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR> -Copyright (c) Huawei Technologies Co., Ltd. 2013. 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: - - Gic.c - -Abstract: - - Driver implementing the GIC interrupt controller protocol - ---*/ - -#include <PiDxe.h> - -#include <Library/BaseLib.h> -#include <Library/DebugLib.h> -#include <Library/BaseMemoryLib.h> -#include <Library/MemoryAllocationLib.h> -#include <Library/UefiBootServicesTableLib.h> -#include <Library/UefiLib.h> -#include <Library/PcdLib.h> -#include <Library/IoLib.h> -#include <Library/ArmGicLib.h> - -#include <Protocol/Cpu.h> -#include <Protocol/HardwareInterrupt.h> - -#define ARM_GIC_DEFAULT_PRIORITY 0x80 - -extern EFI_HARDWARE_INTERRUPT_PROTOCOL gHardwareInterruptProtocol; - -// -// Notifications -// -EFI_EVENT EfiExitBootServicesEvent = (EFI_EVENT)NULL; - -// Maximum Number of Interrupts -UINTN mGicNumInterrupts = 0; - -HARDWARE_INTERRUPT_HANDLER *gRegisteredInterruptHandlers = NULL; - -/** - Register Handler for the specified interrupt source. - - @param This Instance pointer for this protocol - @param Source Hardware source of the interrupt - @param Handler Callback for interrupt. NULL to unregister - - @retval EFI_SUCCESS Source was updated to support Handler. - @retval EFI_DEVICE_ERROR Hardware could not be programmed. - -**/ -EFI_STATUS -EFIAPI -RegisterInterruptSource ( - IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, - IN HARDWARE_INTERRUPT_SOURCE Source, - IN HARDWARE_INTERRUPT_HANDLER Handler - ) -{ - if (Source > mGicNumInterrupts) { - ASSERT(FALSE); - return EFI_UNSUPPORTED; - } - - if ((Handler == NULL) && (gRegisteredInterruptHandlers[Source] == NULL)) { - return EFI_INVALID_PARAMETER; - } - - if ((Handler != NULL) && (gRegisteredInterruptHandlers[Source] != NULL)) { - return EFI_ALREADY_STARTED; - } - - gRegisteredInterruptHandlers[Source] = Handler; - - // If the interrupt handler is unregistered then disable the interrupt - if (NULL == Handler){ - return This->DisableInterruptSource (This, Source); - } else { - return This->EnableInterruptSource (This, Source); - } -} - -/** - Enable interrupt source Source. - - @param This Instance pointer for this protocol - @param Source Hardware source of the interrupt - - @retval EFI_SUCCESS Source interrupt enabled. - @retval EFI_DEVICE_ERROR Hardware could not be programmed. - -**/ -EFI_STATUS -EFIAPI -EnableInterruptSource ( - IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, - IN HARDWARE_INTERRUPT_SOURCE Source - ) -{ - UINT32 RegOffset; - UINTN RegShift; - - if (Source > mGicNumInterrupts) { - ASSERT(FALSE); - return EFI_UNSUPPORTED; - } - - // calculate enable register offset and bit position - RegOffset = Source / 32; - RegShift = Source % 32; - - // write set-enable register - MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDISER + (4*RegOffset), 1 << RegShift); - - return EFI_SUCCESS; -} - -/** - Disable interrupt source Source. - - @param This Instance pointer for this protocol - @param Source Hardware source of the interrupt - - @retval EFI_SUCCESS Source interrupt disabled. - @retval EFI_DEVICE_ERROR Hardware could not be programmed. - -**/ -EFI_STATUS -EFIAPI -DisableInterruptSource ( - IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, - IN HARDWARE_INTERRUPT_SOURCE Source - ) -{ - UINT32 RegOffset; - UINTN RegShift; - - if (Source > mGicNumInterrupts) { - ASSERT(FALSE); - return EFI_UNSUPPORTED; - } - - // Calculate enable register offset and bit position - RegOffset = Source / 32; - RegShift = Source % 32; - - // Write set-enable register - MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDICER + (4*RegOffset), 1 << RegShift); - - return EFI_SUCCESS; -} - -/** - Return current state of interrupt source Source. - - @param This Instance pointer for this protocol - @param Source Hardware source of the interrupt - @param InterruptState TRUE: source enabled, FALSE: source disabled. - - @retval EFI_SUCCESS InterruptState is valid - @retval EFI_DEVICE_ERROR InterruptState is not valid - -**/ -EFI_STATUS -EFIAPI -GetInterruptSourceState ( - IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, - IN HARDWARE_INTERRUPT_SOURCE Source, - IN BOOLEAN *InterruptState - ) -{ - UINT32 RegOffset; - UINTN RegShift; - - if (Source > mGicNumInterrupts) { - ASSERT(FALSE); - return EFI_UNSUPPORTED; - } - - // calculate enable register offset and bit position - RegOffset = Source / 32; - RegShift = Source % 32; - - if ((MmioRead32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDISER + (4*RegOffset)) & (1<<RegShift)) == 0) { - *InterruptState = FALSE; - } else { - *InterruptState = TRUE; - } - - return EFI_SUCCESS; -} - -/** - Signal to the hardware that the End Of Intrrupt state - has been reached. - - @param This Instance pointer for this protocol - @param Source Hardware source of the interrupt - - @retval EFI_SUCCESS Source interrupt EOI'ed. - @retval EFI_DEVICE_ERROR Hardware could not be programmed. - -**/ -EFI_STATUS -EFIAPI -EndOfInterrupt ( - IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This, - IN HARDWARE_INTERRUPT_SOURCE Source - ) -{ - if (Source > mGicNumInterrupts) { - ASSERT(FALSE); - return EFI_UNSUPPORTED; - } - - MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCEIOR, Source); - return EFI_SUCCESS; -} - -/** - EFI_CPU_INTERRUPT_HANDLER that is called when a processor interrupt occurs. - - @param InterruptType Defines the type of interrupt or exception that - occurred on the processor.This parameter is processor architecture specific. - @param SystemContext A pointer to the processor context when - the interrupt occurred on the processor. - - @return None - -**/ -VOID -EFIAPI -IrqInterruptHandler ( - IN EFI_EXCEPTION_TYPE InterruptType, - IN EFI_SYSTEM_CONTEXT SystemContext - ) -{ - UINT32 GicInterrupt; - HARDWARE_INTERRUPT_HANDLER InterruptHandler; - - GicInterrupt = MmioRead32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCIAR); - - // Special Interrupts (ID1020-ID1023) have an Interrupt ID greater than the number of interrupt (ie: Spurious interrupt). - if (GicInterrupt >= mGicNumInterrupts) { - // The special interrupt do not need to be acknowledge - return; - } - - InterruptHandler = gRegisteredInterruptHandlers[GicInterrupt]; - if (InterruptHandler != NULL) { - // Call the registered interrupt handler. - InterruptHandler (GicInterrupt, SystemContext); - } else { - DEBUG ((EFI_D_ERROR, "Spurious GIC interrupt: 0x%x\n", GicInterrupt)); - } - - EndOfInterrupt (&gHardwareInterruptProtocol, GicInterrupt); -} - -// -// Making this global saves a few bytes in image size -// -EFI_HANDLE gHardwareInterruptHandle = NULL; - -// -// The protocol instance produced by this driver -// -EFI_HARDWARE_INTERRUPT_PROTOCOL gHardwareInterruptProtocol = { - RegisterInterruptSource, - EnableInterruptSource, - DisableInterruptSource, - GetInterruptSourceState, - EndOfInterrupt -}; - -/** - Shutdown our hardware - - DXE Core will disable interrupts and turn off the timer and disable interrupts - after all the event handlers have run. - - @param[in] Event The Event that is being processed - @param[in] Context Event Context -**/ -VOID -EFIAPI -ExitBootServicesEvent ( - IN EFI_EVENT Event, - IN VOID *Context - ) -{ - UINTN Index; - - // Acknowledge all pending interrupts - for (Index = 0; Index < mGicNumInterrupts; Index++) { - DisableInterruptSource (&gHardwareInterruptProtocol, Index); - } - - for (Index = 0; Index < mGicNumInterrupts; Index++) { - EndOfInterrupt (&gHardwareInterruptProtocol, Index); - } - - // Disable Gic Interface - MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCICR, 0x0); - MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCPMR, 0x0); - - // Disable Gic Distributor - MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDDCR, 0x0); -} - -/** - Initialize the state information for the CPU Architectural Protocol - - @param ImageHandle of the loaded driver - @param SystemTable Pointer to the System Table - - @retval EFI_SUCCESS Protocol registered - @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure - @retval EFI_DEVICE_ERROR Hardware problems - -**/ -EFI_STATUS -InterruptDxeInitialize ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -{ - EFI_STATUS Status; - UINTN Index; - UINT32 RegOffset; - UINTN RegShift; - EFI_CPU_ARCH_PROTOCOL *Cpu; - UINT32 CpuTarget; - - // Check PcdGicPrimaryCoreId has been set in case the Primary Core is not the core 0 of Cluster 0 - DEBUG_CODE_BEGIN(); - if ((PcdGet32(PcdArmPrimaryCore) != 0) && (PcdGet32 (PcdGicPrimaryCoreId) == 0)) { - DEBUG((EFI_D_WARN,"Warning: the PCD PcdGicPrimaryCoreId does not seem to be set up for the configuration.\n")); - } - DEBUG_CODE_END(); - - // Make sure the Interrupt Controller Protocol is not already installed in the system. - ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gHardwareInterruptProtocolGuid); - - mGicNumInterrupts = ArmGicGetMaxNumInterrupts (PcdGet32(PcdGicDistributorBase)); - - for (Index = 0; Index < mGicNumInterrupts; Index++) { - DisableInterruptSource (&gHardwareInterruptProtocol, Index); - - // Set Priority - RegOffset = Index / 4; - RegShift = (Index % 4) * 8; - MmioAndThenOr32 ( - PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDIPR + (4*RegOffset), - ~(0xff << RegShift), - ARM_GIC_DEFAULT_PRIORITY << RegShift - ); - } - // Configure interrupts for Primary Cpu - CpuTarget = (1 << PcdGet32 (PcdGicPrimaryCoreId)); - CpuTarget |= CpuTarget << 16; - for (Index = 0; Index < (mGicNumInterrupts / 2); Index++) { - MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDIPTR + (Index*4), CpuTarget); - } - - // Set binary point reg to 0x7 (no preemption) - MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCBPR, 0x7); - - // Set priority mask reg to 0xff to allow all priorities through - MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCPMR, 0xff); - - // Enable gic cpu interface - MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCICR, 0x1); - - // Enable gic distributor - MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDDCR, 0x1); - - // Initialize the array for the Interrupt Handlers - gRegisteredInterruptHandlers = (HARDWARE_INTERRUPT_HANDLER*)AllocateZeroPool (sizeof(HARDWARE_INTERRUPT_HANDLER) * mGicNumInterrupts); - - Status = gBS->InstallMultipleProtocolInterfaces ( - &gHardwareInterruptHandle, - &gHardwareInterruptProtocolGuid, &gHardwareInterruptProtocol, - NULL - ); - ASSERT_EFI_ERROR (Status); - - // - // Get the CPU protocol that this driver requires. - // - Status = gBS->LocateProtocol(&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu); - ASSERT_EFI_ERROR(Status); - - // - // Unregister the default exception handler. - // - Status = Cpu->RegisterInterruptHandler(Cpu, EXCEPT_ARM_IRQ, NULL); - ASSERT_EFI_ERROR(Status); - - // - // Register to receive interrupts - // - Status = Cpu->RegisterInterruptHandler(Cpu, EXCEPT_ARM_IRQ, IrqInterruptHandler); - ASSERT_EFI_ERROR(Status); - - // Register for an ExitBootServicesEvent - Status = gBS->CreateEvent (EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_NOTIFY, ExitBootServicesEvent, NULL, &EfiExitBootServicesEvent); - ASSERT_EFI_ERROR (Status); - - return Status; -} +/*++
+
+Copyright (c) 2009, Hewlett-Packard Company. All rights reserved.<BR>
+Portions copyright (c) 2010, Apple Inc. All rights reserved.<BR>
+Portions copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>
+Copyright (c) Huawei Technologies Co., Ltd. 2013. 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:
+
+ Gic.c
+
+Abstract:
+
+ Driver implementing the GIC interrupt controller protocol
+
+--*/
+
+#include <PiDxe.h>
+
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/ArmGicLib.h>
+
+#include <Protocol/Cpu.h>
+#include <Protocol/HardwareInterrupt.h>
+
+#define ARM_GIC_DEFAULT_PRIORITY 0x80
+
+extern EFI_HARDWARE_INTERRUPT_PROTOCOL gHardwareInterruptProtocol;
+
+//
+// Notifications
+//
+EFI_EVENT EfiExitBootServicesEvent = (EFI_EVENT)NULL;
+
+// Maximum Number of Interrupts
+UINTN mGicNumInterrupts = 0;
+
+HARDWARE_INTERRUPT_HANDLER *gRegisteredInterruptHandlers = NULL;
+
+/**
+ Register Handler for the specified interrupt source.
+
+ @param This Instance pointer for this protocol
+ @param Source Hardware source of the interrupt
+ @param Handler Callback for interrupt. NULL to unregister
+
+ @retval EFI_SUCCESS Source was updated to support Handler.
+ @retval EFI_DEVICE_ERROR Hardware could not be programmed.
+
+**/
+EFI_STATUS
+EFIAPI
+RegisterInterruptSource (
+ IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This,
+ IN HARDWARE_INTERRUPT_SOURCE Source,
+ IN HARDWARE_INTERRUPT_HANDLER Handler
+ )
+{
+ if (Source > mGicNumInterrupts) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ if ((Handler == NULL) && (gRegisteredInterruptHandlers[Source] == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if ((Handler != NULL) && (gRegisteredInterruptHandlers[Source] != NULL)) {
+ return EFI_ALREADY_STARTED;
+ }
+
+ gRegisteredInterruptHandlers[Source] = Handler;
+
+ // If the interrupt handler is unregistered then disable the interrupt
+ if (NULL == Handler){
+ return This->DisableInterruptSource (This, Source);
+ } else {
+ return This->EnableInterruptSource (This, Source);
+ }
+}
+
+/**
+ Enable interrupt source Source.
+
+ @param This Instance pointer for this protocol
+ @param Source Hardware source of the interrupt
+
+ @retval EFI_SUCCESS Source interrupt enabled.
+ @retval EFI_DEVICE_ERROR Hardware could not be programmed.
+
+**/
+EFI_STATUS
+EFIAPI
+EnableInterruptSource (
+ IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This,
+ IN HARDWARE_INTERRUPT_SOURCE Source
+ )
+{
+ UINT32 RegOffset;
+ UINTN RegShift;
+
+ if (Source > mGicNumInterrupts) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ // calculate enable register offset and bit position
+ RegOffset = Source / 32;
+ RegShift = Source % 32;
+
+ // write set-enable register
+ MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDISER + (4*RegOffset), 1 << RegShift);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Disable interrupt source Source.
+
+ @param This Instance pointer for this protocol
+ @param Source Hardware source of the interrupt
+
+ @retval EFI_SUCCESS Source interrupt disabled.
+ @retval EFI_DEVICE_ERROR Hardware could not be programmed.
+
+**/
+EFI_STATUS
+EFIAPI
+DisableInterruptSource (
+ IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This,
+ IN HARDWARE_INTERRUPT_SOURCE Source
+ )
+{
+ UINT32 RegOffset;
+ UINTN RegShift;
+
+ if (Source > mGicNumInterrupts) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ // Calculate enable register offset and bit position
+ RegOffset = Source / 32;
+ RegShift = Source % 32;
+
+ // Write set-enable register
+ MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDICER + (4*RegOffset), 1 << RegShift);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Return current state of interrupt source Source.
+
+ @param This Instance pointer for this protocol
+ @param Source Hardware source of the interrupt
+ @param InterruptState TRUE: source enabled, FALSE: source disabled.
+
+ @retval EFI_SUCCESS InterruptState is valid
+ @retval EFI_DEVICE_ERROR InterruptState is not valid
+
+**/
+EFI_STATUS
+EFIAPI
+GetInterruptSourceState (
+ IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This,
+ IN HARDWARE_INTERRUPT_SOURCE Source,
+ IN BOOLEAN *InterruptState
+ )
+{
+ UINT32 RegOffset;
+ UINTN RegShift;
+
+ if (Source > mGicNumInterrupts) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ // calculate enable register offset and bit position
+ RegOffset = Source / 32;
+ RegShift = Source % 32;
+
+ if ((MmioRead32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDISER + (4*RegOffset)) & (1<<RegShift)) == 0) {
+ *InterruptState = FALSE;
+ } else {
+ *InterruptState = TRUE;
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Signal to the hardware that the End Of Intrrupt state
+ has been reached.
+
+ @param This Instance pointer for this protocol
+ @param Source Hardware source of the interrupt
+
+ @retval EFI_SUCCESS Source interrupt EOI'ed.
+ @retval EFI_DEVICE_ERROR Hardware could not be programmed.
+
+**/
+EFI_STATUS
+EFIAPI
+EndOfInterrupt (
+ IN EFI_HARDWARE_INTERRUPT_PROTOCOL *This,
+ IN HARDWARE_INTERRUPT_SOURCE Source
+ )
+{
+ if (Source > mGicNumInterrupts) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCEIOR, Source);
+ return EFI_SUCCESS;
+}
+
+/**
+ EFI_CPU_INTERRUPT_HANDLER that is called when a processor interrupt occurs.
+
+ @param InterruptType Defines the type of interrupt or exception that
+ occurred on the processor.This parameter is processor architecture specific.
+ @param SystemContext A pointer to the processor context when
+ the interrupt occurred on the processor.
+
+ @return None
+
+**/
+VOID
+EFIAPI
+IrqInterruptHandler (
+ IN EFI_EXCEPTION_TYPE InterruptType,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ )
+{
+ UINT32 GicInterrupt;
+ HARDWARE_INTERRUPT_HANDLER InterruptHandler;
+
+ GicInterrupt = MmioRead32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCIAR);
+
+ // Special Interrupts (ID1020-ID1023) have an Interrupt ID greater than the number of interrupt (ie: Spurious interrupt).
+ if (GicInterrupt >= mGicNumInterrupts) {
+ // The special interrupt do not need to be acknowledge
+ return;
+ }
+
+ InterruptHandler = gRegisteredInterruptHandlers[GicInterrupt];
+ if (InterruptHandler != NULL) {
+ // Call the registered interrupt handler.
+ InterruptHandler (GicInterrupt, SystemContext);
+ } else {
+ DEBUG ((EFI_D_ERROR, "Spurious GIC interrupt: 0x%x\n", GicInterrupt));
+ }
+
+ EndOfInterrupt (&gHardwareInterruptProtocol, GicInterrupt);
+}
+
+//
+// Making this global saves a few bytes in image size
+//
+EFI_HANDLE gHardwareInterruptHandle = NULL;
+
+//
+// The protocol instance produced by this driver
+//
+EFI_HARDWARE_INTERRUPT_PROTOCOL gHardwareInterruptProtocol = {
+ RegisterInterruptSource,
+ EnableInterruptSource,
+ DisableInterruptSource,
+ GetInterruptSourceState,
+ EndOfInterrupt
+};
+
+/**
+ Shutdown our hardware
+
+ DXE Core will disable interrupts and turn off the timer and disable interrupts
+ after all the event handlers have run.
+
+ @param[in] Event The Event that is being processed
+ @param[in] Context Event Context
+**/
+VOID
+EFIAPI
+ExitBootServicesEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ UINTN Index;
+
+ // Acknowledge all pending interrupts
+ for (Index = 0; Index < mGicNumInterrupts; Index++) {
+ DisableInterruptSource (&gHardwareInterruptProtocol, Index);
+ }
+
+ for (Index = 0; Index < mGicNumInterrupts; Index++) {
+ EndOfInterrupt (&gHardwareInterruptProtocol, Index);
+ }
+
+ // Disable Gic Interface
+ MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCICR, 0x0);
+ MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCPMR, 0x0);
+
+ // Disable Gic Distributor
+ MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDDCR, 0x0);
+}
+
+/**
+ Initialize the state information for the CPU Architectural Protocol
+
+ @param ImageHandle of the loaded driver
+ @param SystemTable Pointer to the System Table
+
+ @retval EFI_SUCCESS Protocol registered
+ @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure
+ @retval EFI_DEVICE_ERROR Hardware problems
+
+**/
+EFI_STATUS
+InterruptDxeInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ UINTN Index;
+ UINT32 RegOffset;
+ UINTN RegShift;
+ EFI_CPU_ARCH_PROTOCOL *Cpu;
+ UINT32 CpuTarget;
+
+ // Check PcdGicPrimaryCoreId has been set in case the Primary Core is not the core 0 of Cluster 0
+ DEBUG_CODE_BEGIN();
+ if ((PcdGet32(PcdArmPrimaryCore) != 0) && (PcdGet32 (PcdGicPrimaryCoreId) == 0)) {
+ DEBUG((EFI_D_WARN,"Warning: the PCD PcdGicPrimaryCoreId does not seem to be set up for the configuration.\n"));
+ }
+ DEBUG_CODE_END();
+
+ // Make sure the Interrupt Controller Protocol is not already installed in the system.
+ ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gHardwareInterruptProtocolGuid);
+
+ mGicNumInterrupts = ArmGicGetMaxNumInterrupts (PcdGet32(PcdGicDistributorBase));
+
+ for (Index = 0; Index < mGicNumInterrupts; Index++) {
+ DisableInterruptSource (&gHardwareInterruptProtocol, Index);
+
+ // Set Priority
+ RegOffset = Index / 4;
+ RegShift = (Index % 4) * 8;
+ MmioAndThenOr32 (
+ PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDIPR + (4*RegOffset),
+ ~(0xff << RegShift),
+ ARM_GIC_DEFAULT_PRIORITY << RegShift
+ );
+ }
+ // Configure interrupts for Primary Cpu
+ CpuTarget = (1 << PcdGet32 (PcdGicPrimaryCoreId));
+ CpuTarget |= CpuTarget << 16;
+ for (Index = 0; Index < (mGicNumInterrupts / 2); Index++) {
+ MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDIPTR + (Index*4), CpuTarget);
+ }
+
+ // Set binary point reg to 0x7 (no preemption)
+ MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCBPR, 0x7);
+
+ // Set priority mask reg to 0xff to allow all priorities through
+ MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCPMR, 0xff);
+
+ // Enable gic cpu interface
+ MmioWrite32 (PcdGet32(PcdGicInterruptInterfaceBase) + ARM_GIC_ICCICR, 0x1);
+
+ // Enable gic distributor
+ MmioWrite32 (PcdGet32(PcdGicDistributorBase) + ARM_GIC_ICDDCR, 0x1);
+
+ // Initialize the array for the Interrupt Handlers
+ gRegisteredInterruptHandlers = (HARDWARE_INTERRUPT_HANDLER*)AllocateZeroPool (sizeof(HARDWARE_INTERRUPT_HANDLER) * mGicNumInterrupts);
+
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &gHardwareInterruptHandle,
+ &gHardwareInterruptProtocolGuid, &gHardwareInterruptProtocol,
+ NULL
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Get the CPU protocol that this driver requires.
+ //
+ Status = gBS->LocateProtocol(&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // Unregister the default exception handler.
+ //
+ Status = Cpu->RegisterInterruptHandler(Cpu, EXCEPT_ARM_IRQ, NULL);
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // Register to receive interrupts
+ //
+ Status = Cpu->RegisterInterruptHandler(Cpu, EXCEPT_ARM_IRQ, IrqInterruptHandler);
+ ASSERT_EFI_ERROR(Status);
+
+ // Register for an ExitBootServicesEvent
+ Status = gBS->CreateEvent (EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_NOTIFY, ExitBootServicesEvent, NULL, &EfiExitBootServicesEvent);
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
diff --git a/HisiPkg/Drivers/PL390Gic/PL390GicDxe.inf b/HisiPkg/Drivers/PL390Gic/PL390GicDxe.inf index 3dcd7863c..1f2d3990e 100644 --- a/HisiPkg/Drivers/PL390Gic/PL390GicDxe.inf +++ b/HisiPkg/Drivers/PL390Gic/PL390GicDxe.inf @@ -1,59 +1,59 @@ -#/** @file -# -# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR> -# Copyright (c) 2012, ARM Ltd. All rights reserved.<BR> -# Copyright Huawei Technologies Co., Ltd. 1998-2013. 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. -# -#**/ - -[Defines] - INF_VERSION = 0x00010005 - BASE_NAME = PL390GicDxe - FILE_GUID = DE371F7C-DEC4-4D21-ADF1-593ABCC15882 - MODULE_TYPE = DXE_DRIVER - VERSION_STRING = 1.0 - - ENTRY_POINT = InterruptDxeInitialize - - -[Sources.common] - PL390Gic.c - PL390GicDxe.c - -[Packages] - MdePkg/MdePkg.dec - EmbeddedPkg/EmbeddedPkg.dec - ArmPkg/ArmPkg.dec - HisiPkg/HisiPlatformPkg.dec - -[LibraryClasses] - BaseLib - UefiLib - UefiBootServicesTableLib - DebugLib - PrintLib - MemoryAllocationLib - UefiDriverEntryPoint - IoLib - -[Protocols] - gHardwareInterruptProtocolGuid - gEfiCpuArchProtocolGuid - -[FixedPcd.common] - gArmTokenSpaceGuid.PcdGicDistributorBase - gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase - - gArmTokenSpaceGuid.PcdArmPrimaryCore - gHwTokenSpaceGuid.PcdGicPrimaryCoreId - -[Depex] - gEfiCpuArchProtocolGuid +#/** @file
+#
+# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
+# Copyright (c) 2012, ARM Ltd. All rights reserved.<BR>
+# Copyright Huawei Technologies Co., Ltd. 1998-2013. 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.
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = PL390GicDxe
+ FILE_GUID = DE371F7C-DEC4-4D21-ADF1-593ABCC15882
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+
+ ENTRY_POINT = InterruptDxeInitialize
+
+
+[Sources.common]
+ PL390Gic.c
+ PL390GicDxe.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+ ArmPkg/ArmPkg.dec
+ HisiPkg/HisiPlatformPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ UefiLib
+ UefiBootServicesTableLib
+ DebugLib
+ PrintLib
+ MemoryAllocationLib
+ UefiDriverEntryPoint
+ IoLib
+
+[Protocols]
+ gHardwareInterruptProtocolGuid
+ gEfiCpuArchProtocolGuid
+
+[FixedPcd.common]
+ gArmTokenSpaceGuid.PcdGicDistributorBase
+ gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase
+
+ gArmTokenSpaceGuid.PcdArmPrimaryCore
+ gHwTokenSpaceGuid.PcdGicPrimaryCoreId
+
+[Depex]
+ gEfiCpuArchProtocolGuid
diff --git a/HisiPkg/Drivers/TimerDxe/TimerDxe.c b/HisiPkg/Drivers/TimerDxe/TimerDxe.c index fd482f460..a95a6d006 100644 --- a/HisiPkg/Drivers/TimerDxe/TimerDxe.c +++ b/HisiPkg/Drivers/TimerDxe/TimerDxe.c @@ -1,557 +1,557 @@ -/** @file - Timer Architecture Protocol driver of the ARM flavor - - Copyright (c) 2011 ARM Ltd. All rights reserved.<BR> - Copyright (c) Huawei Technologies Co., Ltd. 2013. 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. - -**/ - - -#include <PiDxe.h> - -#include <Library/ArmLib.h> -#include <Library/BaseLib.h> -#include <Library/DebugLib.h> -#include <Library/BaseMemoryLib.h> -#include <Library/UefiBootServicesTableLib.h> -#include <Library/UefiLib.h> -#include <Library/PcdLib.h> -#include <Library/IoLib.h> -#include <Library/ArmArchTimerLib.h> - -#include <Protocol/Timer.h> -#include <Protocol/HardwareInterrupt.h> - -// The notification function to call on every timer interrupt. -EFI_TIMER_NOTIFY mTimerNotifyFunction = (EFI_TIMER_NOTIFY)NULL; -EFI_EVENT EfiExitBootServicesEvent = (EFI_EVENT)NULL; - -// The current period of the timer interrupt -UINT64 mTimerPeriod = 0; - -// Cached copy of the Hardware Interrupt protocol instance -EFI_HARDWARE_INTERRUPT_PROTOCOL *gInterrupt = NULL; - -#define SRE_HITIMER_ADDR 0xe3000000 - -#define SRE_HITIMER32_OFFSET (0x00000020) - -/****************** Timer32 register addresses offset start ***********************/ -#define SRE_HITIMER32_LOAD_OFFSET (0x0) -#define SRE_HITIMER32_VALUE_OFFSET (0x4) -#define SRE_HITIMER32_CNTL_OFFSET (0x8) -#define SRE_HITIMER32_INTC_OFFSET (0xC) -#define SRE_HITIMER32_RIS_OFFSET (0x10) -#define SRE_HITIMER32_MIS_OFFSET (0x0014) -#define SRE_HITIMER32_BGLOAD_OFFSET (0x18) -/****************** end ******************************/ - -#define SRE_HITIMER_NUM 48 -#define SRE_HITIMER64_START_INDEX 32 -#define SRE_HITIMER_ENCLK_SEL_BIT (1 << 7) /* Timer enable flag */ - - -#define SRE_HITIMER_CLK_IN_FREQ 187500000 -#define SRE_HITIMER_MICROSECOND_PER_SECOND 1000000 - -#define SRE_HITIMER_DEFAULT_TICKS 100 -#define SRE_HITIMER_RELOAD_TICKS 1 - -#define SRE_HITIMER_INT_CLEAR (0x01) -#define SRE_HITIMER_CNTL_ENABLE (0x80) -#define SRE_HITIMER_CNTL_MODE (0x40) -#define SRE_HITIMER_CNTL_IRQ_ENABLE (0x20) -#define SRE_HITIMER_CNTL_SIZEMODE (0x2) - - -#define SRE_HITIMER_CNTL_MODE_ONCE 0 -#define SRE_HITIMER_CNTL_MODE_CYCLE 1 -#define SRE_HITIMER_CNTL_IRQ_ON 1 -#define SRE_HITIMER_CNTL_IRQ_OFF 0 - - -#define SRE_D01_HITIMER01_INTVEC (256) -#define SRE_D01_HITIMER23_INTVEC (257) -#define SRE_D01_HITIMER45_INTVEC (258) -#define SRE_D01_HITIMER67_INTVEC (259) -#define SRE_D01_HITIMER89_INTVEC (260) -#define SRE_D01_HITIMER1011_INTVEC (261) -#define SRE_D01_HITIMER1213_INTVEC (262) -#define SRE_D01_HITIMER1415_INTVEC (263) -#define SRE_D01_HITIMER1617_INTVEC (264) -#define SRE_D01_HITIMER1819_INTVEC (265) -#define SRE_D01_HITIMER2021_INTVEC (266) -#define SRE_D01_HITIMER2223_INTVEC (267) -#define SRE_D01_HITIMER2425_INTVEC (268) -#define SRE_D01_HITIMER2627_INTVEC (269) -#define SRE_D01_HITIMER2829_INTVEC (270) -#define SRE_D01_HITIMER3031_INTVEC (271) -#define SRE_D01_HITIMER3233_INTVEC (272) -#define SRE_D01_HITIMER3435_INTVEC (273) -#define SRE_D01_HITIMER3637_INTVEC (274) -#define SRE_D01_HITIMER3839_INTVEC (275) -#define SRE_D01_HITIMER4041_INTVEC (276) -#define SRE_D01_HITIMER4243_INTVEC (277) -#define SRE_D01_HITIMER4445_INTVEC (278) -#define SRE_D01_HITIMER4647_INTVEC (279) - -UINT32 gRegBase = SRE_HITIMER_ADDR; -#define SC_CTRL 0xe3e00000 - -void HITIMER_Start() -{ - UINT32 ulRegAddr; - UINT32 ulVal = 0; - UINT32 ulMask; - - ulVal = *(UINT32*)SC_CTRL; - ulVal |= BIT17 | BIT16 | BIT18 | BIT19; - *(UINT32*)SC_CTRL = ulVal; - - /*timer mode*/ - ulMask = SRE_HITIMER_CNTL_MODE; //BIT6 - ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET; - ulVal = *(UINT32*)ulRegAddr; - ulVal = ulVal; - ulVal |= ulMask; /*cycle*/ - *(UINT32*)ulRegAddr = ulVal; - - /*int mode*/ - ulMask = SRE_HITIMER_CNTL_IRQ_ENABLE; //BIT5 - ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET; - ulVal = *(UINT32*)ulRegAddr; - ulVal = ulVal; - ulVal |= ulMask; - //DEBUG((EFI_D_ERROR, "int mode = %0x at %0x\n", ulVal, ulRegAddr)); - *(UINT32*)ulRegAddr = ulVal; - - /*start up*/ - ulMask = (SRE_HITIMER_ENCLK_SEL_BIT | SRE_HITIMER_CNTL_SIZEMODE); //BIT7 | BIT1 - ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET; - ulVal = *(UINT32*)ulRegAddr; - ulVal = ulVal; - ulVal |= ulMask; - //DEBUG((EFI_D_ERROR, "start up = %0x at %0x\n", ulVal, ulRegAddr)); - *(UINT32*)ulRegAddr = ulVal; - -} - -void HITMER_ClearInt() -{ - UINT32 ulRegAddr; - UINT32 ulVal = 0; - - - ulRegAddr = gRegBase + SRE_HITIMER32_INTC_OFFSET; - ulVal = SRE_HITIMER_INT_CLEAR; - //DEBUG((EFI_D_ERROR, "HITMER_ClearInt = %0x at %0x\n", ulVal, ulRegAddr)); - *(UINT32*)ulRegAddr = ulVal; - -} - -void DisableTimer() -{ - UINT32 ulRegAddr; - UINT32 ulVal = 0; - UINT32 ulMask; - - /*disable*/ - ulMask = SRE_HITIMER_ENCLK_SEL_BIT; - ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET; - ulVal = *(UINT32*)ulRegAddr; - ulVal = ulVal; - ulVal &= (~ulMask); - //DEBUG((EFI_D_ERROR, "DisableTimer = %0x at %0x\n", ulVal, ulRegAddr)); - *(UINT32*)ulRegAddr = ulVal; - -} - -void EnableTimer() -{ - UINT32 ulRegAddr; - UINT32 ulVal = 1; - UINT32 ulMask; - - /*disable*/ - ulMask = SRE_HITIMER_ENCLK_SEL_BIT; - ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET; - ulVal = *(UINT32*)ulRegAddr; - ulVal = ulVal; - ulVal |= ulMask; - //DEBUG((EFI_D_ERROR, "EnableTimer = %0x at %0x\n", ulVal, ulRegAddr)); - *(UINT32*)ulRegAddr = ulVal; - -} - -/** - This function registers the handler NotifyFunction so it is called every time - the timer interrupt fires. It also passes the amount of time since the last - handler call to the NotifyFunction. If NotifyFunction is NULL, then the - handler is unregistered. If the handler is registered, then EFI_SUCCESS is - returned. If the CPU does not support registering a timer interrupt handler, - then EFI_UNSUPPORTED 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 unregister a handler when a handler is not registered, - then EFI_INVALID_PARAMETER is returned. If an error occurs attempting to - register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR - is returned. - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param NotifyFunction The function to call when a timer interrupt fires. This - function executes at TPL_HIGH_LEVEL. The DXE Core will - register a handler for the timer interrupt, so it can know - how much time has passed. This information is used to - signal timer based events. NULL will unregister the handler. - @retval EFI_SUCCESS The timer handler was registered. - @retval EFI_UNSUPPORTED The platform does not support timer interrupts. - @retval EFI_ALREADY_STARTED NotifyFunction is not NULL, and a handler is already - registered. - @retval EFI_INVALID_PARAMETER NotifyFunction is NULL, and a handler was not - previously registered. - @retval EFI_DEVICE_ERROR The timer handler could not be registered. - -**/ -EFI_STATUS -EFIAPI -TimerDriverRegisterHandler ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - IN EFI_TIMER_NOTIFY NotifyFunction - ) -{ - if ((NotifyFunction == NULL) && (mTimerNotifyFunction == NULL)) { - return EFI_INVALID_PARAMETER; - } - - if ((NotifyFunction != NULL) && (mTimerNotifyFunction != NULL)) { - return EFI_ALREADY_STARTED; - } - - mTimerNotifyFunction = NotifyFunction; - - return EFI_SUCCESS; -} - -/** - Disable the timer -**/ -VOID -EFIAPI -ExitBootServicesEvent ( - IN EFI_EVENT Event, - IN VOID *Context - ) -{ - DisableTimer (); -} - -/** - - This function adjusts the period of timer interrupts to the value specified - by TimerPeriod. If the timer period is updated, then the selected timer - period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is returned. - If an error occurs while attempting to update the timer period, then the - timer hardware will be put back in its state prior to this call, and - EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt - is disabled. This is not the same as disabling the CPU's interrupts. - Instead, it must either turn off the timer hardware, or it must adjust the - interrupt controller so that a CPU interrupt is not generated when the timer - interrupt fires. - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param TimerPeriod The rate to program the timer interrupt in 100 nS units. If - the timer hardware is not programmable, then EFI_UNSUPPORTED is - returned. If the timer is programmable, then the timer period - will be rounded up to the nearest timer period that is supported - by the timer hardware. If TimerPeriod is set to 0, then the - timer interrupts will be disabled. - - - @retval EFI_SUCCESS The timer period was changed. - @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt. - @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error. - -**/ -EFI_STATUS -EFIAPI -TimerDriverSetTimerPeriod ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - IN UINT64 TimerPeriod - ) -{ - UINT64 TimerTicks; - - UINT32 ulRegAddr; - - // always disable the timer - DisableTimer (); - - if (TimerPeriod != 0) { - // Convert TimerPeriod to micro sec units - #if 0 - TimerTicks = DivU64x32 (TimerPeriod, 10); - - TimerTicks = MultU64x32 (TimerTicks, (PcdGet32(PcdArmArchTimerFreqInHz)/1000000)); - #endif - - TimerTicks = DivU64x32 (TimerPeriod, 100); - TimerTicks = MultU64x32 (TimerTicks, (PcdGet32(PcdArmArchTimerFreqInHz)/100000)); - - //ArmArchTimerSetTimerVal((UINTN)TimerTicks); - - ulRegAddr = gRegBase + SRE_HITIMER32_LOAD_OFFSET; - //DEBUG((EFI_D_ERROR, "TimerTicks1 = %0x at %0x ======\n", TimerTicks, ulRegAddr)); - *(UINT32*)ulRegAddr = TimerTicks; - ulRegAddr = gRegBase + SRE_HITIMER32_BGLOAD_OFFSET; - //DEBUG((EFI_D_ERROR, "TimerTicks2 = %0x at %0x \n", TimerTicks, ulRegAddr)); - *(UINT32*)ulRegAddr = TimerTicks; - - // Enable the timer - EnableTimer (); - } - - // Save the new timer period - mTimerPeriod = TimerPeriod; - return EFI_SUCCESS; -} - -/** - This function retrieves the period of timer interrupts in 100 ns units, - returns that value in TimerPeriod, and returns EFI_SUCCESS. If TimerPeriod - is NULL, then EFI_INVALID_PARAMETER is returned. If a TimerPeriod of 0 is - returned, then the timer is currently disabled. - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - @param TimerPeriod A pointer to the timer period to retrieve in 100 ns units. If - 0 is returned, then the timer is currently disabled. - - - @retval EFI_SUCCESS The timer period was returned in TimerPeriod. - @retval EFI_INVALID_PARAMETER TimerPeriod is NULL. - -**/ -EFI_STATUS -EFIAPI -TimerDriverGetTimerPeriod ( - IN EFI_TIMER_ARCH_PROTOCOL *This, - OUT UINT64 *TimerPeriod - ) -{ - if (TimerPeriod == NULL) { - return EFI_INVALID_PARAMETER; - } - - *TimerPeriod = mTimerPeriod; - return EFI_SUCCESS; -} - -/** - This function generates a soft timer interrupt. If the platform does not support soft - timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned. - If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler() - service, then a soft timer interrupt will be generated. If the timer interrupt is - enabled when this service is called, then the registered handler will be invoked. The - registered handler should not be able to distinguish a hardware-generated timer - interrupt from a software-generated timer interrupt. - - @param This The EFI_TIMER_ARCH_PROTOCOL instance. - - @retval EFI_SUCCESS The soft timer interrupt was generated. - @retval EFI_UNSUPPORTED The platform does not support the generation of soft timer interrupts. - -**/ -EFI_STATUS -EFIAPI -TimerDriverGenerateSoftInterrupt ( - IN EFI_TIMER_ARCH_PROTOCOL *This - ) -{ - return EFI_UNSUPPORTED; -} - -/** - Interface structure for the Timer Architectural Protocol. - - @par Protocol Description: - This protocol provides the services to initialize a periodic timer - interrupt, and to register a handler that is called each time the timer - interrupt fires. It may also provide a service to adjust the rate of the - periodic timer interrupt. When a timer interrupt occurs, the handler is - passed the amount of time that has passed since the previous timer - interrupt. - - @param RegisterHandler - Registers a handler that will be called each time the - timer interrupt fires. TimerPeriod defines the minimum - time between timer interrupts, so TimerPeriod will also - be the minimum time between calls to the registered - handler. - - @param SetTimerPeriod - Sets the period of the timer interrupt in 100 nS units. - This function is optional, and may return EFI_UNSUPPORTED. - If this function is supported, then the timer period will - be rounded up to the nearest supported timer period. - - - @param GetTimerPeriod - Retrieves the period of the timer interrupt in 100 nS units. - - @param GenerateSoftInterrupt - Generates a soft timer interrupt that simulates the firing of - the timer interrupt. This service can be used to invoke the registered handler if the timer interrupt has been masked for - a period of time. - -**/ -EFI_TIMER_ARCH_PROTOCOL gTimer = { - TimerDriverRegisterHandler, - TimerDriverSetTimerPeriod, - TimerDriverGetTimerPeriod, - TimerDriverGenerateSoftInterrupt -}; - -/** - - C Interrupt Handler called in the interrupt context when Source interrupt is active. - - - @param Source Source of the interrupt. Hardware routing off a specific platform defines - what source means. - - @param SystemContext Pointer to system register context. Mostly used by debuggers and will - update the system context after the return from the interrupt if - modified. Don't change these values unless you know what you are doing - -**/ -VOID -EFIAPI -TimerInterruptHandler ( - IN HARDWARE_INTERRUPT_SOURCE Source, - IN EFI_SYSTEM_CONTEXT SystemContext - ) -{ - EFI_TPL OriginalTPL; - - // - // DXE core uses this callback for the EFI timer tick. The DXE core uses locks - // that raise to TPL_HIGH and then restore back to current level. Thus we need - // to make sure TPL level is set to TPL_HIGH while we are handling the timer tick. - // - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL); - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - // Check if the timer interrupt is active - //if ((*(UINT32*)(gRegBase + SRE_HITIMER32_RIS_OFFSET)) & BIT0) { - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - HITMER_ClearInt(); - - // Signal end of interrupt early to help avoid losing subsequent ticks from long duration handlers - gInterrupt->EndOfInterrupt (gInterrupt, Source); - - - if (mTimerNotifyFunction) { - mTimerNotifyFunction (mTimerPeriod); - } - - // Reload the Timer - //TimerDriverSetTimerPeriod (&gTimer, FixedPcdGet32(PcdTimerPeriod)); - //} - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - // Enable timer interrupts - //gInterrupt->EnableInterruptSource (gInterrupt, Source); - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - gBS->RestoreTPL (OriginalTPL); -} - - - - -/** - Initialize the state information for the Timer Architectural Protocol and - the Timer Debug support protocol that allows the debugger to break into a - running program. - - @param ImageHandle of the loaded driver - @param SystemTable Pointer to the System Table - - @retval EFI_SUCCESS Protocol registered - @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure - @retval EFI_DEVICE_ERROR Hardware problems - -**/ -EFI_STATUS -EFIAPI -TimerInitialize ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -{ - EFI_HANDLE Handle = NULL; - EFI_STATUS Status; - - - // Find the interrupt controller protocol. ASSERT if not found. - Status = gBS->LocateProtocol (&gHardwareInterruptProtocolGuid, NULL, (VOID **)&gInterrupt); - ASSERT_EFI_ERROR (Status); - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - // Disable the timer - Status = TimerDriverSetTimerPeriod (&gTimer, 0); - ASSERT_EFI_ERROR (Status); - - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - // Install secure and Non-secure interrupt handlers - // Note: Because it is not possible to determine the security state of the - // CPU dynamically, we just install interrupt handler for both sec and non-sec - // timer PPI - Status = gInterrupt->RegisterInterruptSource (gInterrupt, 256, TimerInterruptHandler); - ASSERT_EFI_ERROR (Status); - - //Status = gInterrupt->RegisterInterruptSource (gInterrupt, PcdGet32 (PcdArmArchTimerIntrNum), TimerInterruptHandler); - //ASSERT_EFI_ERROR (Status); - - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - // Unmask timer interrupts - HITIMER_Start(); - - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - // Set up default timer - Status = TimerDriverSetTimerPeriod (&gTimer, FixedPcdGet32(PcdTimerPeriod)); // TIMER_DEFAULT_PERIOD - ASSERT_EFI_ERROR (Status); - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - // Install the Timer Architectural Protocol onto a new handle - Status = gBS->InstallMultipleProtocolInterfaces( - &Handle, - &gEfiTimerArchProtocolGuid, &gTimer, - NULL - ); - ASSERT_EFI_ERROR(Status); - //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__)); - - // enable Secure timer interrupts - Status = gInterrupt->EnableInterruptSource (gInterrupt, 256); - - // enable NonSecure timer interrupts - //Status = gInterrupt->EnableInterruptSource (gInterrupt, PcdGet32 (PcdArmArchTimerIntrNum)); - - // Register for an ExitBootServicesEvent - Status = gBS->CreateEvent (EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_NOTIFY, ExitBootServicesEvent, NULL, &EfiExitBootServicesEvent); - ASSERT_EFI_ERROR (Status); - - return Status; -} +/** @file
+ Timer Architecture Protocol driver of the ARM flavor
+
+ Copyright (c) 2011 ARM Ltd. All rights reserved.<BR>
+ Copyright (c) Huawei Technologies Co., Ltd. 2013. 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.
+
+**/
+
+
+#include <PiDxe.h>
+
+#include <Library/ArmLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/ArmArchTimerLib.h>
+
+#include <Protocol/Timer.h>
+#include <Protocol/HardwareInterrupt.h>
+
+// The notification function to call on every timer interrupt.
+EFI_TIMER_NOTIFY mTimerNotifyFunction = (EFI_TIMER_NOTIFY)NULL;
+EFI_EVENT EfiExitBootServicesEvent = (EFI_EVENT)NULL;
+
+// The current period of the timer interrupt
+UINT64 mTimerPeriod = 0;
+
+// Cached copy of the Hardware Interrupt protocol instance
+EFI_HARDWARE_INTERRUPT_PROTOCOL *gInterrupt = NULL;
+
+#define SRE_HITIMER_ADDR 0xe3000000
+
+#define SRE_HITIMER32_OFFSET (0x00000020)
+
+/****************** Timer32 register addresses offset start ***********************/
+#define SRE_HITIMER32_LOAD_OFFSET (0x0)
+#define SRE_HITIMER32_VALUE_OFFSET (0x4)
+#define SRE_HITIMER32_CNTL_OFFSET (0x8)
+#define SRE_HITIMER32_INTC_OFFSET (0xC)
+#define SRE_HITIMER32_RIS_OFFSET (0x10)
+#define SRE_HITIMER32_MIS_OFFSET (0x0014)
+#define SRE_HITIMER32_BGLOAD_OFFSET (0x18)
+/****************** end ******************************/
+
+#define SRE_HITIMER_NUM 48
+#define SRE_HITIMER64_START_INDEX 32
+#define SRE_HITIMER_ENCLK_SEL_BIT (1 << 7) /* Timer enable flag */
+
+
+#define SRE_HITIMER_CLK_IN_FREQ 187500000
+#define SRE_HITIMER_MICROSECOND_PER_SECOND 1000000
+
+#define SRE_HITIMER_DEFAULT_TICKS 100
+#define SRE_HITIMER_RELOAD_TICKS 1
+
+#define SRE_HITIMER_INT_CLEAR (0x01)
+#define SRE_HITIMER_CNTL_ENABLE (0x80)
+#define SRE_HITIMER_CNTL_MODE (0x40)
+#define SRE_HITIMER_CNTL_IRQ_ENABLE (0x20)
+#define SRE_HITIMER_CNTL_SIZEMODE (0x2)
+
+
+#define SRE_HITIMER_CNTL_MODE_ONCE 0
+#define SRE_HITIMER_CNTL_MODE_CYCLE 1
+#define SRE_HITIMER_CNTL_IRQ_ON 1
+#define SRE_HITIMER_CNTL_IRQ_OFF 0
+
+
+#define SRE_D01_HITIMER01_INTVEC (256)
+#define SRE_D01_HITIMER23_INTVEC (257)
+#define SRE_D01_HITIMER45_INTVEC (258)
+#define SRE_D01_HITIMER67_INTVEC (259)
+#define SRE_D01_HITIMER89_INTVEC (260)
+#define SRE_D01_HITIMER1011_INTVEC (261)
+#define SRE_D01_HITIMER1213_INTVEC (262)
+#define SRE_D01_HITIMER1415_INTVEC (263)
+#define SRE_D01_HITIMER1617_INTVEC (264)
+#define SRE_D01_HITIMER1819_INTVEC (265)
+#define SRE_D01_HITIMER2021_INTVEC (266)
+#define SRE_D01_HITIMER2223_INTVEC (267)
+#define SRE_D01_HITIMER2425_INTVEC (268)
+#define SRE_D01_HITIMER2627_INTVEC (269)
+#define SRE_D01_HITIMER2829_INTVEC (270)
+#define SRE_D01_HITIMER3031_INTVEC (271)
+#define SRE_D01_HITIMER3233_INTVEC (272)
+#define SRE_D01_HITIMER3435_INTVEC (273)
+#define SRE_D01_HITIMER3637_INTVEC (274)
+#define SRE_D01_HITIMER3839_INTVEC (275)
+#define SRE_D01_HITIMER4041_INTVEC (276)
+#define SRE_D01_HITIMER4243_INTVEC (277)
+#define SRE_D01_HITIMER4445_INTVEC (278)
+#define SRE_D01_HITIMER4647_INTVEC (279)
+
+UINT32 gRegBase = SRE_HITIMER_ADDR;
+#define SC_CTRL 0xe3e00000
+
+void HITIMER_Start()
+{
+ UINT32 ulRegAddr;
+ UINT32 ulVal = 0;
+ UINT32 ulMask;
+
+ ulVal = *(UINT32*)SC_CTRL;
+ ulVal |= BIT17 | BIT16 | BIT18 | BIT19;
+ *(UINT32*)SC_CTRL = ulVal;
+
+ /*timer mode*/
+ ulMask = SRE_HITIMER_CNTL_MODE; //BIT6
+ ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET;
+ ulVal = *(UINT32*)ulRegAddr;
+ ulVal = ulVal;
+ ulVal |= ulMask; /*cycle*/
+ *(UINT32*)ulRegAddr = ulVal;
+
+ /*int mode*/
+ ulMask = SRE_HITIMER_CNTL_IRQ_ENABLE; //BIT5
+ ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET;
+ ulVal = *(UINT32*)ulRegAddr;
+ ulVal = ulVal;
+ ulVal |= ulMask;
+ //DEBUG((EFI_D_ERROR, "int mode = %0x at %0x\n", ulVal, ulRegAddr));
+ *(UINT32*)ulRegAddr = ulVal;
+
+ /*start up*/
+ ulMask = (SRE_HITIMER_ENCLK_SEL_BIT | SRE_HITIMER_CNTL_SIZEMODE); //BIT7 | BIT1
+ ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET;
+ ulVal = *(UINT32*)ulRegAddr;
+ ulVal = ulVal;
+ ulVal |= ulMask;
+ //DEBUG((EFI_D_ERROR, "start up = %0x at %0x\n", ulVal, ulRegAddr));
+ *(UINT32*)ulRegAddr = ulVal;
+
+}
+
+void HITMER_ClearInt()
+{
+ UINT32 ulRegAddr;
+ UINT32 ulVal = 0;
+
+
+ ulRegAddr = gRegBase + SRE_HITIMER32_INTC_OFFSET;
+ ulVal = SRE_HITIMER_INT_CLEAR;
+ //DEBUG((EFI_D_ERROR, "HITMER_ClearInt = %0x at %0x\n", ulVal, ulRegAddr));
+ *(UINT32*)ulRegAddr = ulVal;
+
+}
+
+void DisableTimer()
+{
+ UINT32 ulRegAddr;
+ UINT32 ulVal = 0;
+ UINT32 ulMask;
+
+ /*disable*/
+ ulMask = SRE_HITIMER_ENCLK_SEL_BIT;
+ ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET;
+ ulVal = *(UINT32*)ulRegAddr;
+ ulVal = ulVal;
+ ulVal &= (~ulMask);
+ //DEBUG((EFI_D_ERROR, "DisableTimer = %0x at %0x\n", ulVal, ulRegAddr));
+ *(UINT32*)ulRegAddr = ulVal;
+
+}
+
+void EnableTimer()
+{
+ UINT32 ulRegAddr;
+ UINT32 ulVal = 1;
+ UINT32 ulMask;
+
+ /*disable*/
+ ulMask = SRE_HITIMER_ENCLK_SEL_BIT;
+ ulRegAddr = gRegBase + SRE_HITIMER32_CNTL_OFFSET;
+ ulVal = *(UINT32*)ulRegAddr;
+ ulVal = ulVal;
+ ulVal |= ulMask;
+ //DEBUG((EFI_D_ERROR, "EnableTimer = %0x at %0x\n", ulVal, ulRegAddr));
+ *(UINT32*)ulRegAddr = ulVal;
+
+}
+
+/**
+ This function registers the handler NotifyFunction so it is called every time
+ the timer interrupt fires. It also passes the amount of time since the last
+ handler call to the NotifyFunction. If NotifyFunction is NULL, then the
+ handler is unregistered. If the handler is registered, then EFI_SUCCESS is
+ returned. If the CPU does not support registering a timer interrupt handler,
+ then EFI_UNSUPPORTED 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 unregister a handler when a handler is not registered,
+ then EFI_INVALID_PARAMETER is returned. If an error occurs attempting to
+ register the NotifyFunction with the timer interrupt, then EFI_DEVICE_ERROR
+ is returned.
+
+ @param This The EFI_TIMER_ARCH_PROTOCOL instance.
+ @param NotifyFunction The function to call when a timer interrupt fires. This
+ function executes at TPL_HIGH_LEVEL. The DXE Core will
+ register a handler for the timer interrupt, so it can know
+ how much time has passed. This information is used to
+ signal timer based events. NULL will unregister the handler.
+ @retval EFI_SUCCESS The timer handler was registered.
+ @retval EFI_UNSUPPORTED The platform does not support timer interrupts.
+ @retval EFI_ALREADY_STARTED NotifyFunction is not NULL, and a handler is already
+ registered.
+ @retval EFI_INVALID_PARAMETER NotifyFunction is NULL, and a handler was not
+ previously registered.
+ @retval EFI_DEVICE_ERROR The timer handler could not be registered.
+
+**/
+EFI_STATUS
+EFIAPI
+TimerDriverRegisterHandler (
+ IN EFI_TIMER_ARCH_PROTOCOL *This,
+ IN EFI_TIMER_NOTIFY NotifyFunction
+ )
+{
+ if ((NotifyFunction == NULL) && (mTimerNotifyFunction == NULL)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if ((NotifyFunction != NULL) && (mTimerNotifyFunction != NULL)) {
+ return EFI_ALREADY_STARTED;
+ }
+
+ mTimerNotifyFunction = NotifyFunction;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Disable the timer
+**/
+VOID
+EFIAPI
+ExitBootServicesEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ DisableTimer ();
+}
+
+/**
+
+ This function adjusts the period of timer interrupts to the value specified
+ by TimerPeriod. If the timer period is updated, then the selected timer
+ period is stored in EFI_TIMER.TimerPeriod, and EFI_SUCCESS is returned. If
+ the timer hardware is not programmable, then EFI_UNSUPPORTED is returned.
+ If an error occurs while attempting to update the timer period, then the
+ timer hardware will be put back in its state prior to this call, and
+ EFI_DEVICE_ERROR is returned. If TimerPeriod is 0, then the timer interrupt
+ is disabled. This is not the same as disabling the CPU's interrupts.
+ Instead, it must either turn off the timer hardware, or it must adjust the
+ interrupt controller so that a CPU interrupt is not generated when the timer
+ interrupt fires.
+
+ @param This The EFI_TIMER_ARCH_PROTOCOL instance.
+ @param TimerPeriod The rate to program the timer interrupt in 100 nS units. If
+ the timer hardware is not programmable, then EFI_UNSUPPORTED is
+ returned. If the timer is programmable, then the timer period
+ will be rounded up to the nearest timer period that is supported
+ by the timer hardware. If TimerPeriod is set to 0, then the
+ timer interrupts will be disabled.
+
+
+ @retval EFI_SUCCESS The timer period was changed.
+ @retval EFI_UNSUPPORTED The platform cannot change the period of the timer interrupt.
+ @retval EFI_DEVICE_ERROR The timer period could not be changed due to a device error.
+
+**/
+EFI_STATUS
+EFIAPI
+TimerDriverSetTimerPeriod (
+ IN EFI_TIMER_ARCH_PROTOCOL *This,
+ IN UINT64 TimerPeriod
+ )
+{
+ UINT64 TimerTicks;
+
+ UINT32 ulRegAddr;
+
+ // always disable the timer
+ DisableTimer ();
+
+ if (TimerPeriod != 0) {
+ // Convert TimerPeriod to micro sec units
+ #if 0
+ TimerTicks = DivU64x32 (TimerPeriod, 10);
+
+ TimerTicks = MultU64x32 (TimerTicks, (PcdGet32(PcdArmArchTimerFreqInHz)/1000000));
+ #endif
+
+ TimerTicks = DivU64x32 (TimerPeriod, 100);
+ TimerTicks = MultU64x32 (TimerTicks, (PcdGet32(PcdArmArchTimerFreqInHz)/100000));
+
+ //ArmArchTimerSetTimerVal((UINTN)TimerTicks);
+
+ ulRegAddr = gRegBase + SRE_HITIMER32_LOAD_OFFSET;
+ //DEBUG((EFI_D_ERROR, "TimerTicks1 = %0x at %0x ======\n", TimerTicks, ulRegAddr));
+ *(UINT32*)ulRegAddr = TimerTicks;
+ ulRegAddr = gRegBase + SRE_HITIMER32_BGLOAD_OFFSET;
+ //DEBUG((EFI_D_ERROR, "TimerTicks2 = %0x at %0x \n", TimerTicks, ulRegAddr));
+ *(UINT32*)ulRegAddr = TimerTicks;
+
+ // Enable the timer
+ EnableTimer ();
+ }
+
+ // Save the new timer period
+ mTimerPeriod = TimerPeriod;
+ return EFI_SUCCESS;
+}
+
+/**
+ This function retrieves the period of timer interrupts in 100 ns units,
+ returns that value in TimerPeriod, and returns EFI_SUCCESS. If TimerPeriod
+ is NULL, then EFI_INVALID_PARAMETER is returned. If a TimerPeriod of 0 is
+ returned, then the timer is currently disabled.
+
+ @param This The EFI_TIMER_ARCH_PROTOCOL instance.
+ @param TimerPeriod A pointer to the timer period to retrieve in 100 ns units. If
+ 0 is returned, then the timer is currently disabled.
+
+
+ @retval EFI_SUCCESS The timer period was returned in TimerPeriod.
+ @retval EFI_INVALID_PARAMETER TimerPeriod is NULL.
+
+**/
+EFI_STATUS
+EFIAPI
+TimerDriverGetTimerPeriod (
+ IN EFI_TIMER_ARCH_PROTOCOL *This,
+ OUT UINT64 *TimerPeriod
+ )
+{
+ if (TimerPeriod == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ *TimerPeriod = mTimerPeriod;
+ return EFI_SUCCESS;
+}
+
+/**
+ This function generates a soft timer interrupt. If the platform does not support soft
+ timer interrupts, then EFI_UNSUPPORTED is returned. Otherwise, EFI_SUCCESS is returned.
+ If a handler has been registered through the EFI_TIMER_ARCH_PROTOCOL.RegisterHandler()
+ service, then a soft timer interrupt will be generated. If the timer interrupt is
+ enabled when this service is called, then the registered handler will be invoked. The
+ registered handler should not be able to distinguish a hardware-generated timer
+ interrupt from a software-generated timer interrupt.
+
+ @param This The EFI_TIMER_ARCH_PROTOCOL instance.
+
+ @retval EFI_SUCCESS The soft timer interrupt was generated.
+ @retval EFI_UNSUPPORTED The platform does not support the generation of soft timer interrupts.
+
+**/
+EFI_STATUS
+EFIAPI
+TimerDriverGenerateSoftInterrupt (
+ IN EFI_TIMER_ARCH_PROTOCOL *This
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+/**
+ Interface structure for the Timer Architectural Protocol.
+
+ @par Protocol Description:
+ This protocol provides the services to initialize a periodic timer
+ interrupt, and to register a handler that is called each time the timer
+ interrupt fires. It may also provide a service to adjust the rate of the
+ periodic timer interrupt. When a timer interrupt occurs, the handler is
+ passed the amount of time that has passed since the previous timer
+ interrupt.
+
+ @param RegisterHandler
+ Registers a handler that will be called each time the
+ timer interrupt fires. TimerPeriod defines the minimum
+ time between timer interrupts, so TimerPeriod will also
+ be the minimum time between calls to the registered
+ handler.
+
+ @param SetTimerPeriod
+ Sets the period of the timer interrupt in 100 nS units.
+ This function is optional, and may return EFI_UNSUPPORTED.
+ If this function is supported, then the timer period will
+ be rounded up to the nearest supported timer period.
+
+
+ @param GetTimerPeriod
+ Retrieves the period of the timer interrupt in 100 nS units.
+
+ @param GenerateSoftInterrupt
+ Generates a soft timer interrupt that simulates the firing of
+ the timer interrupt. This service can be used to invoke the registered handler if the timer interrupt has been masked for
+ a period of time.
+
+**/
+EFI_TIMER_ARCH_PROTOCOL gTimer = {
+ TimerDriverRegisterHandler,
+ TimerDriverSetTimerPeriod,
+ TimerDriverGetTimerPeriod,
+ TimerDriverGenerateSoftInterrupt
+};
+
+/**
+
+ C Interrupt Handler called in the interrupt context when Source interrupt is active.
+
+
+ @param Source Source of the interrupt. Hardware routing off a specific platform defines
+ what source means.
+
+ @param SystemContext Pointer to system register context. Mostly used by debuggers and will
+ update the system context after the return from the interrupt if
+ modified. Don't change these values unless you know what you are doing
+
+**/
+VOID
+EFIAPI
+TimerInterruptHandler (
+ IN HARDWARE_INTERRUPT_SOURCE Source,
+ IN EFI_SYSTEM_CONTEXT SystemContext
+ )
+{
+ EFI_TPL OriginalTPL;
+
+ //
+ // DXE core uses this callback for the EFI timer tick. The DXE core uses locks
+ // that raise to TPL_HIGH and then restore back to current level. Thus we need
+ // to make sure TPL level is set to TPL_HIGH while we are handling the timer tick.
+ //
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+ OriginalTPL = gBS->RaiseTPL (TPL_HIGH_LEVEL);
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ // Check if the timer interrupt is active
+ //if ((*(UINT32*)(gRegBase + SRE_HITIMER32_RIS_OFFSET)) & BIT0) {
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+ HITMER_ClearInt();
+
+ // Signal end of interrupt early to help avoid losing subsequent ticks from long duration handlers
+ gInterrupt->EndOfInterrupt (gInterrupt, Source);
+
+
+ if (mTimerNotifyFunction) {
+ mTimerNotifyFunction (mTimerPeriod);
+ }
+
+ // Reload the Timer
+ //TimerDriverSetTimerPeriod (&gTimer, FixedPcdGet32(PcdTimerPeriod));
+ //}
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ // Enable timer interrupts
+ //gInterrupt->EnableInterruptSource (gInterrupt, Source);
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ gBS->RestoreTPL (OriginalTPL);
+}
+
+
+
+
+/**
+ Initialize the state information for the Timer Architectural Protocol and
+ the Timer Debug support protocol that allows the debugger to break into a
+ running program.
+
+ @param ImageHandle of the loaded driver
+ @param SystemTable Pointer to the System Table
+
+ @retval EFI_SUCCESS Protocol registered
+ @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure
+ @retval EFI_DEVICE_ERROR Hardware problems
+
+**/
+EFI_STATUS
+EFIAPI
+TimerInitialize (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_HANDLE Handle = NULL;
+ EFI_STATUS Status;
+
+
+ // Find the interrupt controller protocol. ASSERT if not found.
+ Status = gBS->LocateProtocol (&gHardwareInterruptProtocolGuid, NULL, (VOID **)&gInterrupt);
+ ASSERT_EFI_ERROR (Status);
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ // Disable the timer
+ Status = TimerDriverSetTimerPeriod (&gTimer, 0);
+ ASSERT_EFI_ERROR (Status);
+
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+ // Install secure and Non-secure interrupt handlers
+ // Note: Because it is not possible to determine the security state of the
+ // CPU dynamically, we just install interrupt handler for both sec and non-sec
+ // timer PPI
+ Status = gInterrupt->RegisterInterruptSource (gInterrupt, 256, TimerInterruptHandler);
+ ASSERT_EFI_ERROR (Status);
+
+ //Status = gInterrupt->RegisterInterruptSource (gInterrupt, PcdGet32 (PcdArmArchTimerIntrNum), TimerInterruptHandler);
+ //ASSERT_EFI_ERROR (Status);
+
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+ // Unmask timer interrupts
+ HITIMER_Start();
+
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ // Set up default timer
+ Status = TimerDriverSetTimerPeriod (&gTimer, FixedPcdGet32(PcdTimerPeriod)); // TIMER_DEFAULT_PERIOD
+ ASSERT_EFI_ERROR (Status);
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ // Install the Timer Architectural Protocol onto a new handle
+ Status = gBS->InstallMultipleProtocolInterfaces(
+ &Handle,
+ &gEfiTimerArchProtocolGuid, &gTimer,
+ NULL
+ );
+ ASSERT_EFI_ERROR(Status);
+ //DEBUG((EFI_D_ERROR, "[DJ]: %a : %d\n", __FUNCTION__, __LINE__));
+
+ // enable Secure timer interrupts
+ Status = gInterrupt->EnableInterruptSource (gInterrupt, 256);
+
+ // enable NonSecure timer interrupts
+ //Status = gInterrupt->EnableInterruptSource (gInterrupt, PcdGet32 (PcdArmArchTimerIntrNum));
+
+ // Register for an ExitBootServicesEvent
+ Status = gBS->CreateEvent (EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_NOTIFY, ExitBootServicesEvent, NULL, &EfiExitBootServicesEvent);
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
+}
diff --git a/HisiPkg/Drivers/TimerDxe/TimerDxe.inf b/HisiPkg/Drivers/TimerDxe/TimerDxe.inf index 3ccb746ca..6dd90ecd2 100644 --- a/HisiPkg/Drivers/TimerDxe/TimerDxe.inf +++ b/HisiPkg/Drivers/TimerDxe/TimerDxe.inf @@ -1,60 +1,60 @@ -#/** @file -# -# Component description file for Timer DXE module -# -# Copyright (c) 2009 - 2010, Apple Inc. All rights reserved.<BR> -# Copyright (c) Huawei Technologies Co., Ltd. 2013. 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. -# -#**/ - -[Defines] - INF_VERSION = 0x00010005 - BASE_NAME = ArmTimerDxe - FILE_GUID = 49ea041e-6752-42ca-b0b1-7344fe2546b7 - MODULE_TYPE = DXE_DRIVER - VERSION_STRING = 1.0 - - ENTRY_POINT = TimerInitialize - -[Sources.common] - TimerDxe.c - -[Packages] - MdePkg/MdePkg.dec - EmbeddedPkg/EmbeddedPkg.dec - ArmPkg/ArmPkg.dec - ArmPlatformPkg/ArmPlatformPkg.dec - -[LibraryClasses] - ArmLib - BaseLib - UefiRuntimeServicesTableLib - UefiLib - UefiBootServicesTableLib - BaseMemoryLib - DebugLib - UefiDriverEntryPoint - IoLib - -[Guids] - -[Protocols] - gEfiTimerArchProtocolGuid - gHardwareInterruptProtocolGuid - -[Pcd.common] - gEmbeddedTokenSpaceGuid.PcdTimerPeriod - gArmTokenSpaceGuid.PcdArmArchTimerSecIntrNum - gArmTokenSpaceGuid.PcdArmArchTimerIntrNum - gArmTokenSpaceGuid.PcdArmArchTimerFreqInHz - -[Depex] - gHardwareInterruptProtocolGuid +#/** @file
+#
+# Component description file for Timer DXE module
+#
+# Copyright (c) 2009 - 2010, Apple Inc. All rights reserved.<BR>
+# Copyright (c) Huawei Technologies Co., Ltd. 2013. 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.
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ArmTimerDxe
+ FILE_GUID = 49ea041e-6752-42ca-b0b1-7344fe2546b7
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+
+ ENTRY_POINT = TimerInitialize
+
+[Sources.common]
+ TimerDxe.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+ ArmPkg/ArmPkg.dec
+ ArmPlatformPkg/ArmPlatformPkg.dec
+
+[LibraryClasses]
+ ArmLib
+ BaseLib
+ UefiRuntimeServicesTableLib
+ UefiLib
+ UefiBootServicesTableLib
+ BaseMemoryLib
+ DebugLib
+ UefiDriverEntryPoint
+ IoLib
+
+[Guids]
+
+[Protocols]
+ gEfiTimerArchProtocolGuid
+ gHardwareInterruptProtocolGuid
+
+[Pcd.common]
+ gEmbeddedTokenSpaceGuid.PcdTimerPeriod
+ gArmTokenSpaceGuid.PcdArmArchTimerSecIntrNum
+ gArmTokenSpaceGuid.PcdArmArchTimerIntrNum
+ gArmTokenSpaceGuid.PcdArmArchTimerFreqInHz
+
+[Depex]
+ gHardwareInterruptProtocolGuid
\ No newline at end of file |