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-rw-r--r--Omap35xxPkg/InterruptDxe/HardwareInterrupt.c396
1 files changed, 0 insertions, 396 deletions
diff --git a/Omap35xxPkg/InterruptDxe/HardwareInterrupt.c b/Omap35xxPkg/InterruptDxe/HardwareInterrupt.c
deleted file mode 100644
index d15e68e..0000000
--- a/Omap35xxPkg/InterruptDxe/HardwareInterrupt.c
+++ /dev/null
@@ -1,396 +0,0 @@
-/** @file
- Handle OMAP35xx interrupt controller
-
- Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-#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 <Library/ArmLib.h>
-
-#include <Protocol/Cpu.h>
-#include <Protocol/HardwareInterrupt.h>
-
-#include <Omap3530/Omap3530.h>
-
-//
-// Notifications
-//
-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);
-
- // Add code here to disable all FIQs as debugger may have turned one on
-}
-
-/**
- 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 ((MmioRead32 (INTCPS_ILR(Source)) & INTCPS_ILR_FIQ) == INTCPS_ILR_FIQ) {
- // This vector has been programmed as FIQ so we can't use it for IRQ
- // EFI does not use FIQ, but the debugger can use it to check for
- // ctrl-c. So this ASSERT means you have a conflict with the debug agent
- 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;
-}
-
-/**
- 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
- )
-{
- MmioWrite32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
- ArmDataSynchronizationBarrier ();
- 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);
- ArmDataSynchronizationBarrier ();
-
- 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);
- ArmDataSynchronizationBarrier ();
-}
-
-//
-// 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
-};
-
-STATIC VOID *mCpuArchProtocolNotifyEventRegistration;
-
-STATIC
-VOID
-EFIAPI
-CpuArchEventProtocolNotify (
- IN EFI_EVENT Event,
- IN VOID *Context
- )
-{
- EFI_CPU_ARCH_PROTOCOL *Cpu;
- EFI_STATUS Status;
-
- //
- // Get the CPU protocol that this driver requires.
- //
- Status = gBS->LocateProtocol (&gEfiCpuArchProtocolGuid, NULL, (VOID **)&Cpu);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "%a: gBS->LocateProtocol() - %r\n", __FUNCTION__,
- Status));
- ASSERT (FALSE);
- return;
- }
-
- //
- // Unregister the default exception handler.
- //
- Status = Cpu->RegisterInterruptHandler (Cpu, EXCEPT_ARM_IRQ, NULL);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "%a: Cpu->RegisterInterruptHandler() - %r\n",
- __FUNCTION__, Status));
- ASSERT (FALSE);
- return;
- }
-
- //
- // Register to receive interrupts
- //
- Status = Cpu->RegisterInterruptHandler (Cpu, EXCEPT_ARM_IRQ,
- IrqInterruptHandler);
- if (EFI_ERROR (Status)) {
- DEBUG ((DEBUG_ERROR, "%a: Cpu->RegisterInterruptHandler() - %r\n",
- __FUNCTION__, Status));
- ASSERT (FALSE);
- return;
- }
-}
-
-/**
- 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;
- EFI_EVENT CpuArchEvent;
-
- // 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);
- MmioOr32 (INTCPS_CONTROL, INTCPS_CONTROL_NEWIRQAGR);
-
- Status = gBS->InstallMultipleProtocolInterfaces(&gHardwareInterruptHandle,
- &gHardwareInterruptProtocolGuid, &gHardwareInterruptProtocol,
- NULL);
- ASSERT_EFI_ERROR(Status);
-
- //
- // Install the interrupt handler as soon as the CPU arch protocol appears.
- //
- CpuArchEvent = EfiCreateProtocolNotifyEvent (
- &gEfiCpuArchProtocolGuid,
- TPL_CALLBACK,
- CpuArchEventProtocolNotify,
- NULL,
- &mCpuArchProtocolNotifyEventRegistration
- );
- ASSERT (CpuArchEvent != NULL);
-
- // Register for an ExitBootServicesEvent
- Status = gBS->CreateEvent(EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_NOTIFY, ExitBootServicesEvent, NULL, &EfiExitBootServicesEvent);
- if (EFI_ERROR (Status)) {
- ASSERT_EFI_ERROR (Status);
- gBS->CloseEvent (CpuArchEvent);
- }
-
- return Status;
-}
-
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