hal/halx86/generic/halinit.c

   1 /*
   2  * PROJECT:         ReactOS HAL
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * FILE:            hal/halx86/generic/halinit.c
   5  * PURPOSE:         HAL Entrypoint and Initialization
   6  * PROGRAMMERS:     Alex Ionescu (alex.ionescu@reactos.org)
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include <hal.h>
  12 #define NDEBUG
  13 #include <debug.h>
  14
  15 /* GLOBALS *******************************************************************/
  16
  17 BOOLEAN HalpPciLockSettings;
  18
  19 /* PRIVATE FUNCTIONS *********************************************************/
  20
  21 VOID
  22 NTAPI
  23 INIT_FUNCTION
  24 HalpGetParameters(IN PLOADER_PARAMETER_BLOCK LoaderBlock)
  25 {
  26     PCHAR CommandLine;
  27
  28     /* Make sure we have a loader block and command line */
  29     if ((LoaderBlock) && (LoaderBlock->LoadOptions))
  30     {
  31         /* Read the command line */
  32         CommandLine = LoaderBlock->LoadOptions;
  33
  34         /* Check if PCI is locked */
  35         if (strstr(CommandLine, "PCILOCK")) HalpPciLockSettings = TRUE;
  36
  37         /* Check for initial breakpoint */
  38         if (strstr(CommandLine, "BREAK")) DbgBreakPoint();
  39     }
  40 }
  41
  42 /* FUNCTIONS *****************************************************************/
  43
  44 VOID
  45 NTAPI
  46 HalInitializeProcessor(
  47     IN ULONG ProcessorNumber,
  48     IN PLOADER_PARAMETER_BLOCK LoaderBlock)
  49 {
  50     /* Hal specific initialization for this cpu */
  51     HalpInitProcessor(ProcessorNumber, LoaderBlock);
  52
  53     /* Set default stall count */
  54     KeGetPcr()->StallScaleFactor = INITIAL_STALL_COUNT;
  55
  56     /* Update the interrupt affinity and processor mask */
  57     InterlockedBitTestAndSet((PLONG)&HalpActiveProcessors, ProcessorNumber);
  58     InterlockedBitTestAndSet((PLONG)&HalpDefaultInterruptAffinity,
  59                              ProcessorNumber);
  60
  61     /* Register routines for KDCOM */
  62     HalpRegisterKdSupportFunctions();
  63 }
  64
  65 /*
  66  * @implemented
  67  */
  68 BOOLEAN
  69 NTAPI
  70 INIT_FUNCTION
  71 HalInitSystem(IN ULONG BootPhase,
  72               IN PLOADER_PARAMETER_BLOCK LoaderBlock)
  73 {
  74     PKPRCB Prcb = KeGetCurrentPrcb();
  75
  76     /* Check the boot phase */
  77     if (BootPhase == 0)
  78     {
  79         /* Phase 0... save bus type */
  80         HalpBusType = LoaderBlock->u.I386.MachineType & 0xFF;
  81
  82         /* Get command-line parameters */
  83         HalpGetParameters(LoaderBlock);
  84
  85         /* Check for PRCB version mismatch */
  86         if (Prcb->MajorVersion != PRCB_MAJOR_VERSION)
  87         {
  88             /* No match, bugcheck */
  89             KeBugCheckEx(MISMATCHED_HAL, 1, Prcb->MajorVersion, PRCB_MAJOR_VERSION, 0);
  90         }
  91
  92         /* Checked/free HAL requires checked/free kernel */
  93         if (Prcb->BuildType != HalpBuildType)
  94         {
  95             /* No match, bugcheck */
  96             KeBugCheckEx(MISMATCHED_HAL, 2, Prcb->BuildType, HalpBuildType, 0);
  97         }
  98
  99         /* Initialize ACPI */
 100         HalpSetupAcpiPhase0(LoaderBlock);
 101
 102         /* Initialize the PICs */
 103         HalpInitializePICs(TRUE);
 104
 105         /* Initialize CMOS lock */
 106         KeInitializeSpinLock(&HalpSystemHardwareLock);
 107
 108         /* Initialize CMOS */
 109         HalpInitializeCmos();
 110
 111         /* Fill out the dispatch tables */
 112         HalQuerySystemInformation = HaliQuerySystemInformation;
 113         HalSetSystemInformation = HaliSetSystemInformation;
 114         HalInitPnpDriver = HaliInitPnpDriver;
 115         HalGetDmaAdapter = HalpGetDmaAdapter;
 116
 117         HalGetInterruptTranslator = NULL;  // FIXME: TODO
 118         HalResetDisplay = HalpBiosDisplayReset;
 119         HalHaltSystem = HaliHaltSystem;
 120
 121         /* Setup I/O space */
 122         HalpDefaultIoSpace.Next = HalpAddressUsageList;
 123         HalpAddressUsageList = &HalpDefaultIoSpace;
 124
 125         /* Setup busy waiting */
 126         HalpCalibrateStallExecution();
 127
 128         /* Initialize the clock */
 129         HalpInitializeClock();
 130
 131         /*
 132          * We could be rebooting with a pending profile interrupt,
 133          * so clear it here before interrupts are enabled
 134          */
 135         HalStopProfileInterrupt(ProfileTime);
 136
 137         /* Do some HAL-specific initialization */
 138         HalpInitPhase0(LoaderBlock);
 139     }
 140     else if (BootPhase == 1)
 141     {
 142         /* Initialize bus handlers */
 143         HalpInitBusHandlers();
 144
 145         /* Do some HAL-specific initialization */
 146         HalpInitPhase1();
 147     }
 148
 149     /* All done, return */
 150     return TRUE;
 151 }