diff options
| author | andrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-01-28 21:32:01 +0000 |
|---|---|---|
| committer | andrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-01-28 21:32:01 +0000 |
| commit | a3f98646f68239bf9c577b24689bc69cbcde1b47 (patch) | |
| tree | 5aadfc72e0170e433b621de4da245a906c8c13f6 /Omap35xxPkg/InterruptDxe | |
| parent | 759f21f1d17ce52a05eea31e9ddd1efb4ec68bbb (diff) | |
| download | edk2-platforms-a3f98646f68239bf9c577b24689bc69cbcde1b47.tar.xz | |
Moving OMAP 3530 code out of BeagleBoard package into its own package
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9854 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'Omap35xxPkg/InterruptDxe')
| -rw-r--r-- | Omap35xxPkg/InterruptDxe/HardwareInterrupt.c | 342 | ||||
| -rw-r--r-- | Omap35xxPkg/InterruptDxe/InterruptDxe.inf | 68 |
2 files changed, 410 insertions, 0 deletions
diff --git a/Omap35xxPkg/InterruptDxe/HardwareInterrupt.c b/Omap35xxPkg/InterruptDxe/HardwareInterrupt.c new file mode 100644 index 0000000000..feb5b26dfe --- /dev/null +++ b/Omap35xxPkg/InterruptDxe/HardwareInterrupt.c @@ -0,0 +1,342 @@ +/** @file
+ Template for Metronome Architecture Protocol driver of the ARM flavor
+
+ Copyright (c) 2008-2009, Apple Inc. All rights reserved.
+
+ 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/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 <Protocol/Cpu.h>
+#include <Protocol/HardwareInterrupt.h>
+
+#include <Omap3530/Omap3530.h>
+
+//
+// Notifications
+//
+VOID *CpuProtocolNotificationToken = NULL;
+EFI_EVENT CpuProtocolNotificationEvent = (EFI_EVENT)NULL;
+EFI_EVENT EfiExitBootServicesEvent = (EFI_EVENT)NULL;
+
+
+HARDWARE_INTERRUPT_HANDLER gRegisteredInterruptHandlers[INT_NROF_VECTORS];
+
+/**
+ 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
+ )
+{
+ // Disable all interrupts
+ MmioWrite32(INTCPS_MIR(0), 0xFFFFFFFF);
+ MmioWrite32(INTCPS_MIR(1), 0xFFFFFFFF);
+ MmioWrite32(INTCPS_MIR(2), 0xFFFFFFFF);
+ MmioWrite32(INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
+}
+
+/**
+ 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 > MAX_VECTOR) {
+ 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;
+ 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
+ )
+{
+ UINTN Bank;
+ UINTN Bit;
+
+ if (Source > MAX_VECTOR) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ Bank = Source / 32;
+ Bit = 1UL << (Source % 32);
+
+ MmioWrite32(INTCPS_MIR_CLEAR(Bank), Bit);
+
+ 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
+ )
+{
+ UINTN Bank;
+ UINTN Bit;
+
+ if (Source > MAX_VECTOR) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ Bank = Source / 32;
+ Bit = 1UL << (Source % 32);
+
+ MmioWrite32(INTCPS_MIR_SET(Bank), Bit);
+
+ 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
+ )
+{
+ UINTN Bank;
+ UINTN Bit;
+
+ if (InterruptState == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Source > MAX_VECTOR) {
+ ASSERT(FALSE);
+ return EFI_UNSUPPORTED;
+ }
+
+ Bank = Source / 32;
+ Bit = 1UL << (Source % 32);
+
+ if ((MmioRead32(INTCPS_MIR(Bank)) & Bit) == Bit) {
+ *InterruptState = FALSE;
+ } else {
+ *InterruptState = TRUE;
+ }
+
+ 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 Vector;
+ HARDWARE_INTERRUPT_HANDLER InterruptHandler;
+
+ Vector = MmioRead32(INTCPS_SIR_IRQ) & INTCPS_SIR_IRQ_MASK;
+
+ // Needed to prevent infinite nesting when Time Driver lowers TPL
+ MmioWrite32(INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
+
+ InterruptHandler = gRegisteredInterruptHandlers[Vector];
+ if (InterruptHandler != NULL) {
+ // Call the registered interrupt handler.
+ InterruptHandler(Vector, SystemContext);
+ }
+
+ // Needed to clear after running the handler
+ MmioWrite32(INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
+}
+
+//
+// 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
+};
+
+//
+// Notification routines
+//
+VOID
+CpuProtocolInstalledNotification (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ EFI_CPU_ARCH_PROTOCOL *Cpu;
+
+ //
+ // 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);
+}
+
+/**
+ 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;
+
+ // Make sure the Interrupt Controller Protocol is not already installed in the system.
+ ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gHardwareInterruptProtocolGuid);
+
+ // Make sure all interrupts are disabled by default.
+ MmioWrite32(INTCPS_MIR(0), 0xFFFFFFFF);
+ MmioWrite32(INTCPS_MIR(1), 0xFFFFFFFF);
+ MmioWrite32(INTCPS_MIR(2), 0xFFFFFFFF);
+ MmioWrite32(INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
+
+ Status = gBS->InstallMultipleProtocolInterfaces(&gHardwareInterruptHandle,
+ &gHardwareInterruptProtocolGuid, &gHardwareInterruptProtocol,
+ NULL);
+ ASSERT_EFI_ERROR(Status);
+
+ // Set up to be notified when the Cpu protocol is installed.
+ Status = gBS->CreateEvent(EVT_NOTIFY_SIGNAL, TPL_CALLBACK, CpuProtocolInstalledNotification, NULL, &CpuProtocolNotificationEvent);
+ ASSERT_EFI_ERROR(Status);
+
+ Status = gBS->RegisterProtocolNotify(&gEfiCpuArchProtocolGuid, CpuProtocolNotificationEvent, (VOID *)&CpuProtocolNotificationToken);
+ 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/Omap35xxPkg/InterruptDxe/InterruptDxe.inf b/Omap35xxPkg/InterruptDxe/InterruptDxe.inf new file mode 100644 index 0000000000..832e715b8a --- /dev/null +++ b/Omap35xxPkg/InterruptDxe/InterruptDxe.inf @@ -0,0 +1,68 @@ +#/** @file
+#
+# Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.
+# 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.
+#
+#**/
+
+#/** @file
+#
+# Interrupt DXE driver
+#
+# Copyright (c) 2009, Apple, Inc <BR>
+# 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 = BeagleBoardInterruptDxe
+ FILE_GUID = 23eed05d-1b93-4a1a-8e1b-931d69e37952
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+
+ ENTRY_POINT = InterruptDxeInitialize
+
+
+[Sources.common]
+ HardwareInterrupt.c
+
+
+[Packages]
+ Omap35xxPkg/Omap35xxPkg.dec
+ MdePkg/MdePkg.dec
+ EmbeddedPkg/EmbeddedPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ UefiLib
+ UefiBootServicesTableLib
+ DebugLib
+ PrintLib
+ UefiDriverEntryPoint
+ IoLib
+
+[Guids]
+
+
+[Protocols]
+ gHardwareInterruptProtocolGuid
+ gEfiCpuArchProtocolGuid
+
+[FixedPcd.common]
+ gEmbeddedTokenSpaceGuid.PcdInterruptBaseAddress
+
+[depex]
+ TRUE
|