mirror of
https://github.com/reactos/reactos.git
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168 lines
4.5 KiB
C
168 lines
4.5 KiB
C
/*
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* PROJECT: ReactOS HAL
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: hal/halx86/generic/halinit.c
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* PURPOSE: HAL Entrypoint and Initialization
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* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
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*/
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/* INCLUDES ******************************************************************/
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#include <hal.h>
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#define NDEBUG
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#include <debug.h>
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INIT_FUNCTION
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VOID
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NTAPI
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HalpGetParameters(
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IN PLOADER_PARAMETER_BLOCK LoaderBlock
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);
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#if defined(ALLOC_PRAGMA) && !defined(_MINIHAL_)
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#pragma alloc_text(INIT, HalInitSystem)
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#pragma alloc_text(INIT, HalpGetParameters)
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#endif
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/* GLOBALS *******************************************************************/
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BOOLEAN HalpPciLockSettings;
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/* PRIVATE FUNCTIONS *********************************************************/
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INIT_FUNCTION
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VOID
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NTAPI
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HalpGetParameters(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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{
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PCHAR CommandLine;
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/* Make sure we have a loader block and command line */
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if ((LoaderBlock) && (LoaderBlock->LoadOptions))
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{
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/* Read the command line */
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CommandLine = LoaderBlock->LoadOptions;
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/* Check if PCI is locked */
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if (strstr(CommandLine, "PCILOCK")) HalpPciLockSettings = TRUE;
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/* Check for initial breakpoint */
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if (strstr(CommandLine, "BREAK")) DbgBreakPoint();
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}
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}
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/* FUNCTIONS *****************************************************************/
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VOID
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NTAPI
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HalInitializeProcessor(
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IN ULONG ProcessorNumber,
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IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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{
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/* Hal specific initialization for this cpu */
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HalpInitProcessor(ProcessorNumber, LoaderBlock);
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/* Set default stall count */
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KeGetPcr()->StallScaleFactor = INITIAL_STALL_COUNT;
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/* Update the interrupt affinity and processor mask */
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InterlockedBitTestAndSet((PLONG)&HalpActiveProcessors, ProcessorNumber);
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InterlockedBitTestAndSet((PLONG)&HalpDefaultInterruptAffinity,
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ProcessorNumber);
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/* Register routines for KDCOM */
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HalpRegisterKdSupportFunctions();
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}
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/*
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* @implemented
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*/
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INIT_FUNCTION
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BOOLEAN
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NTAPI
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HalInitSystem(IN ULONG BootPhase,
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IN PLOADER_PARAMETER_BLOCK LoaderBlock)
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{
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PKPRCB Prcb = KeGetCurrentPrcb();
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/* Check the boot phase */
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if (BootPhase == 0)
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{
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/* Phase 0... save bus type */
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HalpBusType = LoaderBlock->u.I386.MachineType & 0xFF;
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/* Get command-line parameters */
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HalpGetParameters(LoaderBlock);
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/* Check for PRCB version mismatch */
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if (Prcb->MajorVersion != PRCB_MAJOR_VERSION)
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{
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/* No match, bugcheck */
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KeBugCheckEx(MISMATCHED_HAL, 1, Prcb->MajorVersion, PRCB_MAJOR_VERSION, 0);
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}
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/* Checked/free HAL requires checked/free kernel */
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if (Prcb->BuildType != HalpBuildType)
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{
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/* No match, bugcheck */
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KeBugCheckEx(MISMATCHED_HAL, 2, Prcb->BuildType, HalpBuildType, 0);
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}
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/* Initialize ACPI */
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HalpSetupAcpiPhase0(LoaderBlock);
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/* Initialize the PICs */
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HalpInitializePICs(TRUE);
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/* Initialize CMOS lock */
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KeInitializeSpinLock(&HalpSystemHardwareLock);
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/* Initialize CMOS */
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HalpInitializeCmos();
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/* Fill out the dispatch tables */
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HalQuerySystemInformation = HaliQuerySystemInformation;
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HalSetSystemInformation = HaliSetSystemInformation;
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HalInitPnpDriver = HaliInitPnpDriver;
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HalGetDmaAdapter = HalpGetDmaAdapter;
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HalGetInterruptTranslator = NULL; // FIXME: TODO
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HalResetDisplay = HalpBiosDisplayReset;
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HalHaltSystem = HaliHaltSystem;
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/* Setup I/O space */
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HalpDefaultIoSpace.Next = HalpAddressUsageList;
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HalpAddressUsageList = &HalpDefaultIoSpace;
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/* Setup busy waiting */
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HalpCalibrateStallExecution();
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/* Initialize the clock */
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HalpInitializeClock();
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/*
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* We could be rebooting with a pending profile interrupt,
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* so clear it here before interrupts are enabled
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*/
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HalStopProfileInterrupt(ProfileTime);
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/* Do some HAL-specific initialization */
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HalpInitPhase0(LoaderBlock);
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}
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else if (BootPhase == 1)
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{
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/* Initialize bus handlers */
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HalpInitBusHandlers();
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/* Do some HAL-specific initialization */
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HalpInitPhase1();
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#ifdef _M_AMD64
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HalInitializeBios(0, LoaderBlock);
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#endif
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}
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/* All done, return */
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return TRUE;
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}
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