hardware.h File Reference

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Macros
#define	CONFIG_CMD(bus, dev_fn, where)   (0x80000000 | (((ULONG)(bus)) << 16) | (((dev_fn) & 0x1F) << 11) | (((dev_fn) & 0xE0) << 3) | ((where) & ~3))
#define	TAG_HW_RESOURCE_LIST   'lRwH'
#define	TAG_HW_DISK_CONTEXT   'cDwH'

Typedefs
typedef PCM_PARTIAL_RESOURCE_LIST(*	GET_HARDDISK_CONFIG_DATA) (UCHAR DriveNumber, ULONG *pSize)

Functions
VOID	StallExecutionProcessor (ULONG Microseconds)
VOID	HalpCalibrateStallExecution (VOID)
VOID	DetectBiosDisks (PCONFIGURATION_COMPONENT_DATA SystemKey, PCONFIGURATION_COMPONENT_DATA BusKey)
VOID	DetectAcpiBios (PCONFIGURATION_COMPONENT_DATA SystemKey, ULONG *BusNumber)
VOID	DetectApmBios (PCONFIGURATION_COMPONENT_DATA SystemKey, ULONG *BusNumber)
VOID	DetectPciBios (PCONFIGURATION_COMPONENT_DATA SystemKey, ULONG *BusNumber)
ULONG_PTR __cdecl	PnpBiosSupported (VOID)
ULONG __cdecl	PnpBiosGetDeviceNodeCount (ULONG *NodeSize, ULONG *NodeCount)
ULONG __cdecl	PnpBiosGetDeviceNode (UCHAR *NodeId, UCHAR *NodeBuffer)
USHORT __cdecl	PxeCallApi (USHORT Segment, USHORT Offset, USHORT Service, VOID *Parameter)

Variables
GET_HARDDISK_CONFIG_DATA	GetHarddiskConfigurationData

Macro Definition Documentation

CONFIG_CMD

#define CONFIG_CMD	(		bus,
			dev_fn,
			where
	)		(0x80000000 | (((ULONG)(bus)) << 16) | (((dev_fn) & 0x1F) << 11) | (((dev_fn) & 0xE0) << 3) | ((where) & ~3))

Definition at line 23 of file hardware.h.

TAG_HW_DISK_CONTEXT

#define TAG_HW_DISK_CONTEXT   'cDwH'

Definition at line 27 of file hardware.h.

TAG_HW_RESOURCE_LIST

#define TAG_HW_RESOURCE_LIST   'lRwH'

Definition at line 26 of file hardware.h.

Typedef Documentation

GET_HARDDISK_CONFIG_DATA

typedef PCM_PARTIAL_RESOURCE_LIST(* GET_HARDDISK_CONFIG_DATA) (UCHAR DriveNumber, ULONG *pSize)

Definition at line 37 of file hardware.h.

Function Documentation

DetectAcpiBios()

VOID DetectAcpiBios	(	PCONFIGURATION_COMPONENT_DATA	SystemKey,
		ULONG *	BusNumber
	)

Definition at line 54 of file hwacpi.c.

{
    PCONFIGURATION_COMPONENT_DATA BiosKey;
    PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
    PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
    PRSDP_DESCRIPTOR Rsdp;
    PACPI_BIOS_DATA AcpiBiosData;
    ULONG TableSize;

    Rsdp = FindAcpiBios();

    if (Rsdp)
    {
        /* Set up the flag in the loader block */
        AcpiPresent = TRUE;

        /* Calculate the table size */
        TableSize = PcBiosMapCount * sizeof(BIOS_MEMORY_MAP) +
            sizeof(ACPI_BIOS_DATA) - sizeof(BIOS_MEMORY_MAP);

        /* Set 'Configuration Data' value */
        PartialResourceList =
            FrLdrHeapAlloc(sizeof(CM_PARTIAL_RESOURCE_LIST) + TableSize,
                           TAG_HW_RESOURCE_LIST);

        if (PartialResourceList == NULL)
        {
            ERR("Failed to allocate resource descriptor\n");
            return;
        }

        memset(PartialResourceList, 0, sizeof(CM_PARTIAL_RESOURCE_LIST) + TableSize);
        PartialResourceList->Version = 0;
        PartialResourceList->Revision = 0;
        PartialResourceList->Count = 1;

        PartialDescriptor = &PartialResourceList->PartialDescriptors[0];
        PartialDescriptor->Type = CmResourceTypeDeviceSpecific;
        PartialDescriptor->ShareDisposition = CmResourceShareUndetermined;
        PartialDescriptor->u.DeviceSpecificData.DataSize = TableSize;

        /* Fill the table */
        AcpiBiosData = (PACPI_BIOS_DATA)&PartialResourceList->PartialDescriptors[1];
        AcpiBiosData->RSDTAddress.LowPart = Rsdp->rsdt_physical_address;
        AcpiBiosData->Count = PcBiosMapCount;
        memcpy(AcpiBiosData->MemoryMap, PcBiosMemoryMap,
            PcBiosMapCount * sizeof(BIOS_MEMORY_MAP));

        TRACE("RSDT %p, data size %x\n", Rsdp->rsdt_physical_address,
            TableSize);

        /* Create new bus key */
        FldrCreateComponentKey(SystemKey,
                               AdapterClass,
                               MultiFunctionAdapter,
                               0x0,
                               0x0,
                               0xFFFFFFFF,
                               "ACPI BIOS",
                               PartialResourceList,
                               sizeof(CM_PARTIAL_RESOURCE_LIST) + TableSize,
                               &BiosKey);

        /* Increment bus number */
        (*BusNumber)++;
    }
}

Referenced by PcHwDetect().

DetectApmBios()

VOID DetectApmBios	(	PCONFIGURATION_COMPONENT_DATA	SystemKey,
		ULONG *	BusNumber
	)

Definition at line 58 of file hwapm.c.

{
    PCONFIGURATION_COMPONENT_DATA BiosKey;
    PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
    ULONG Size;

    Size = sizeof(CM_PARTIAL_RESOURCE_LIST) -
           sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);

    if (FindApmBios())
    {
        /* Create 'Configuration Data' value */
        PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
        memset(PartialResourceList, 0, Size);
        PartialResourceList->Version = 0;
        PartialResourceList->Revision = 0;
        PartialResourceList->Count = 0;

        /* Create new bus key */
        FldrCreateComponentKey(SystemKey,
                               AdapterClass,
                               MultiFunctionAdapter,
                               0x0,
                               0x0,
                               0xFFFFFFFF,
                               "APM",
                               PartialResourceList,
                               Size,
                               &BiosKey);

        /* Increment bus number */
        (*BusNumber)++;
    }

    /* FIXME: Add configuration data */
}

Referenced by PcHwDetect().

DetectBiosDisks()

VOID DetectBiosDisks	(	PCONFIGURATION_COMPONENT_DATA	SystemKey,
		PCONFIGURATION_COMPONENT_DATA	BusKey
	)

Definition at line 353 of file hardware.c.

{
    PCONFIGURATION_COMPONENT_DATA ControllerKey, DiskKey;
    PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
    PCM_INT13_DRIVE_PARAMETER Int13Drives;
    GEOMETRY Geometry;
    UCHAR DiskCount, DriveNumber;
    USHORT i;
    ULONG Size;

    /* The pre-enumeration of the BIOS disks was already done in InitializeBootDevices() */
    DiskCount = PcBiosDiskCount;

    /* Use the floppy disk controller as our controller */
    ControllerKey = DetectBiosFloppyController(BusKey);
    if (!ControllerKey)
    {
        ERR("Failed to detect BIOS disk controller\n");
        return;
    }

    /* Allocate resource descriptor */
    Size = sizeof(CM_PARTIAL_RESOURCE_LIST) +
           sizeof(CM_INT13_DRIVE_PARAMETER) * DiskCount;
    PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
    if (PartialResourceList == NULL)
    {
        ERR("Failed to allocate resource descriptor\n");
        return;
    }

    /* Initialize resource descriptor */
    memset(PartialResourceList, 0, Size);
    PartialResourceList->Version = 1;
    PartialResourceList->Revision = 1;
    PartialResourceList->Count = 1;
    PartialResourceList->PartialDescriptors[0].Type = CmResourceTypeDeviceSpecific;
    PartialResourceList->PartialDescriptors[0].ShareDisposition = 0;
    PartialResourceList->PartialDescriptors[0].Flags = 0;
    PartialResourceList->PartialDescriptors[0].u.DeviceSpecificData.DataSize =
        sizeof(CM_INT13_DRIVE_PARAMETER) * DiskCount;

    /* Get harddisk Int13 geometry data */
    Int13Drives = (PVOID)(((ULONG_PTR)PartialResourceList) + sizeof(CM_PARTIAL_RESOURCE_LIST));
    for (i = 0; i < DiskCount; i++)
    {
        DriveNumber = 0x80 + i;

        if (MachDiskGetDriveGeometry(DriveNumber, &Geometry))
        {
            Int13Drives[i].DriveSelect = DriveNumber;
            Int13Drives[i].MaxCylinders = Geometry.Cylinders - 1;
            Int13Drives[i].SectorsPerTrack = (USHORT)Geometry.Sectors;
            Int13Drives[i].MaxHeads = (USHORT)Geometry.Heads - 1;
            Int13Drives[i].NumberDrives = DiskCount;

            TRACE("Disk %x: %u Cylinders  %u Heads  %u Sectors  %u Bytes\n",
                  DriveNumber,
                  Geometry.Cylinders - 1,
                  Geometry.Heads - 1,
                  Geometry.Sectors,
                  Geometry.BytesPerSector);
        }
    }

    /* Update the 'System' key's configuration data with BIOS INT13h information */
    FldrSetConfigurationData(SystemKey, PartialResourceList, Size);

    /* Create and fill subkey for each harddisk */
    for (i = 0; i < DiskCount; i++)
    {
        PCHAR Identifier;

        DriveNumber = 0x80 + i;

        /* Get disk values */
        PartialResourceList = GetHarddiskConfigurationData(DriveNumber, &Size);
        Identifier = GetHarddiskIdentifier(DriveNumber);

        /* Create disk key */
        FldrCreateComponentKey(ControllerKey,
                               PeripheralClass,
                               DiskPeripheral,
                               Output | Input,
                               0x0,
                               0xFFFFFFFF,
                               Identifier,
                               PartialResourceList,
                               Size,
                               &DiskKey);
    }
}

Referenced by DetectIsaBios().

DetectPciBios()

VOID DetectPciBios	(	PCONFIGURATION_COMPONENT_DATA	SystemKey,
		ULONG *	BusNumber
	)

Definition at line 175 of file hwpci.c.

{
    PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
    PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
    PCI_REGISTRY_INFO BusData;
    PCONFIGURATION_COMPONENT_DATA BiosKey;
    ULONG Size;
    PCONFIGURATION_COMPONENT_DATA BusKey;
    ULONG i;

    /* Report the PCI BIOS */
    if (FindPciBios(&BusData))
    {
        /* Set 'Configuration Data' value */
        Size = FIELD_OFFSET(CM_PARTIAL_RESOURCE_LIST, PartialDescriptors);
        PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
        if (PartialResourceList == NULL)
        {
            ERR("Failed to allocate resource descriptor\n");
            return;
        }

        /* Initialize resource descriptor */
        memset(PartialResourceList, 0, Size);

        /* Create new bus key */
        FldrCreateComponentKey(SystemKey,
                               AdapterClass,
                               MultiFunctionAdapter,
                               0x0,
                               0x0,
                               0xFFFFFFFF,
                               "PCI BIOS",
                               PartialResourceList,
                               Size,
                               &BiosKey);

        /* Increment bus number */
        (*BusNumber)++;

        DetectPciIrqRoutingTable(BiosKey);

        /* Report PCI buses */
        for (i = 0; i < (ULONG)BusData.NoBuses; i++)
        {
            /* Check if this is the first bus */
            if (i == 0)
            {
                /* Set 'Configuration Data' value */
                Size = FIELD_OFFSET(CM_PARTIAL_RESOURCE_LIST,
                                    PartialDescriptors) +
                       sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR) +
                       sizeof(PCI_REGISTRY_INFO);
                PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
                if (!PartialResourceList)
                {
                    ERR("Failed to allocate resource descriptor\n");
                    return;
                }

                /* Initialize resource descriptor */
                memset(PartialResourceList, 0, Size);
                PartialResourceList->Version = 1;
                PartialResourceList->Revision = 1;
                PartialResourceList->Count = 1;
                PartialDescriptor = &PartialResourceList->PartialDescriptors[0];
                PartialDescriptor->Type = CmResourceTypeDeviceSpecific;
                PartialDescriptor->ShareDisposition = CmResourceShareUndetermined;
                PartialDescriptor->u.DeviceSpecificData.DataSize = sizeof(PCI_REGISTRY_INFO);
                memcpy(&PartialResourceList->PartialDescriptors[1],
                       &BusData,
                       sizeof(PCI_REGISTRY_INFO));
            }
            else
            {
                /* Set 'Configuration Data' value */
                Size = FIELD_OFFSET(CM_PARTIAL_RESOURCE_LIST,
                                    PartialDescriptors);
                PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
                if (!PartialResourceList)
                {
                    ERR("Failed to allocate resource descriptor\n");
                    return;
                }

                /* Initialize resource descriptor */
                memset(PartialResourceList, 0, Size);
            }

            /* Create the bus key */
            FldrCreateComponentKey(SystemKey,
                                   AdapterClass,
                                   MultiFunctionAdapter,
                                   0x0,
                                   0x0,
                                   0xFFFFFFFF,
                                   "PCI",
                                   PartialResourceList,
                                   Size,
                                   &BusKey);

            /* Increment bus number */
            (*BusNumber)++;
        }
    }
}

Referenced by PcHwDetect().

HalpCalibrateStallExecution()

VOID HalpCalibrateStallExecution

(

VOID

)

Definition at line 102 of file hardware.c.

{
    ULONG i;
    ULONG calib_bit;
    ULONG CurCount;

    /* Initialise timer interrupt with MILLISECOND ms interval        */
    WRITE_PORT_UCHAR((PUCHAR)0x43, 0x34);  /* binary, mode 2, LSB/MSB, ch 0 */
    WRITE_PORT_UCHAR((PUCHAR)0x40, LATCH & 0xff); /* LSB */
    WRITE_PORT_UCHAR((PUCHAR)0x40, LATCH >> 8); /* MSB */

    /* Stage 1:  Coarse calibration                                   */

    delay_count = 1;

    do
    {
        /* Next delay count to try */
        delay_count <<= 1;

        WaitFor8254Wraparound();

        /* Do the delay */
        __StallExecutionProcessor(delay_count);

        CurCount = Read8254Timer();
    }
    while (CurCount > LATCH / 2);

    /* Get bottom value for delay */
    delay_count >>= 1;

    /* Stage 2:  Fine calibration                                     */

    /* Which bit are we going to test */
    calib_bit = delay_count;

    for (i = 0; i < PRECISION; i++)
    {
        /* Next bit to calibrate */
        calib_bit >>= 1;

        /* If we have done all bits, stop */
        if (!calib_bit) break;

        /* Set the bit in delay_count */
        delay_count |= calib_bit;

        WaitFor8254Wraparound();

        /* Do the delay */
        __StallExecutionProcessor(delay_count);

        CurCount = Read8254Timer();
        /* If a tick has passed, turn the calibrated bit back off */
        if (CurCount <= LATCH / 2)
            delay_count &= ~calib_bit;
    }

    /* We're finished:  Do the finishing touches */

    /* Calculate delay_count for 1ms */
    delay_count /= (MILLISEC / 2);
}

PnpBiosGetDeviceNode()

ULONG __cdecl PnpBiosGetDeviceNode	(	UCHAR *	NodeId,
		UCHAR *	NodeBuffer
	)

Referenced by DetectPnpBios().

PnpBiosGetDeviceNodeCount()

ULONG __cdecl PnpBiosGetDeviceNodeCount	(	ULONG *	NodeSize,
		ULONG *	NodeCount
	)

Referenced by DetectPnpBios().

PnpBiosSupported()

ULONG_PTR __cdecl PnpBiosSupported

(

VOID

)

Referenced by DetectPnpBios().

PxeCallApi()

USHORT __cdecl PxeCallApi	(	USHORT	Segment,
		USHORT	Offset,
		USHORT	Service,
		VOID *	Parameter
	)

StallExecutionProcessor()

VOID StallExecutionProcessor

(

ULONG

Microseconds

)

Definition at line 57 of file hardware.c.

{
    ULONGLONG LoopCount = ((ULONGLONG)delay_count * (ULONGLONG)Microseconds) / 1000ULL;
    __StallExecutionProcessor((ULONG)LoopCount);
}

Variable Documentation

GetHarddiskConfigurationData

GET_HARDDISK_CONFIG_DATA GetHarddiskConfigurationData

Definition at line 42 of file hardware.c.

Referenced by DetectBiosDisks(), PcHwDetect(), and XboxHwDetect().