pata_legacy.c File Reference

#include "pciidex.h"

Include dependency graph for pata_legacy.c:

Go to the source code of this file.

Functions
NTSTATUS	PataGetControllerProperties (_Inout_ PATA_CONTROLLER Controller, _In_ PCM_RESOURCE_LIST ResourcesTranslated)

Function Documentation

PataGetControllerProperties()

NTSTATUS PataGetControllerProperties	(	_Inout_ PATA_CONTROLLER	Controller,
		_In_ PCM_RESOURCE_LIST	ResourcesTranslated
	)

Definition at line 16 of file pata_legacy.c.

{
    PCHANNEL_DATA_PATA ChanData;
    NTSTATUS Status;
 
    PAGED_CODE();
    ASSERT(Controller->Flags & CTRL_FLAG_NON_PNP);
 
    Controller->MaxChannels = 1;
    Controller->ChannelBitmap = 0x1;
    Controller->Flags &= ~CTRL_FLAG_NATIVE_PCI;
    Controller->Flags |= CTRL_FLAG_MANUAL_RES;
 
    Status = PciIdeCreateChannelData(Controller, 0);
    if (!NT_SUCCESS(Status))
        return Status;
 
    ChanData = Controller->Channels[0];
    ChanData->ChanInfo &= ~CHANNEL_FLAG_IO32;
    ChanData->TransferModeSupported = PIO_ALL;
 
    Status = PciIdeParseResources(ChanData, ResourcesTranslated);
    if (!NT_SUCCESS(Status))
        return Status;
 
#if defined(_M_IX86)
    if (ChanData->ChanInfo & CHANNEL_FLAG_CBUS)
    {
        UCHAR Value, Result;
 
        /* Check whether the 32-bit data port can be enabled on the southbridge */
        Value = READ_PORT_UCHAR((PUCHAR)PC98_ATA_BANK);
        WRITE_PORT_UCHAR((PUCHAR)PC98_ATA_BANK, Value ^ PC98_ATA_BANK_32BIT_PORT);
        Result = READ_PORT_UCHAR((PUCHAR)PC98_ATA_BANK);
        if ((Result ^ Value) & PC98_ATA_BANK_32BIT_PORT)
        {
            ChanData->ChanInfo |= CHANNEL_FLAG_IO32;
        }
    }
#endif
 
    return STATUS_SUCCESS;
}

Referenced by PciIdeXFdoStartDevice().