pciide.c

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/*
 * COPYRIGHT:       See COPYING in the top level directory
 * PROJECT:         PCI IDE bus driver
 * FILE:            drivers/storage/pciide/pciide.c
 * PURPOSE:         Main file
 * PROGRAMMERS:     Hervé Poussineau (hpoussin@reactos.org)
 */

#include "pciide.h"

#define NDEBUG
#include <debug.h>

IDE_CHANNEL_STATE NTAPI
PciIdeChannelEnabled(
    IN PVOID DeviceExtension,
    IN ULONG Channel)
{
    PCI_COMMON_CONFIG PciConfig;
    NTSTATUS Status;

    DPRINT("PciIdeChannelEnabled(%p, %lu)\n", DeviceExtension, Channel);

    Status = PciIdeXGetBusData(
        DeviceExtension,
        &PciConfig,
        0,
        PCI_COMMON_HDR_LENGTH);
    if (!NT_SUCCESS(Status))
    {
        DPRINT("PciIdeXGetBusData() failed with status 0x%08lx\n", Status);
        return ChannelStateUnknown;
    }

    if (PCI_CONFIGURATION_TYPE(&PciConfig) != PCI_DEVICE_TYPE)
    {
        DPRINT("Wrong PCI card type. Disabling IDE channel #%lu\n", Channel);
        return ChannelDisabled;
    }

    if (PciConfig.BaseClass != PCI_CLASS_MASS_STORAGE_CTLR || PciConfig.SubClass != PCI_SUBCLASS_MSC_IDE_CTLR)
    {
        DPRINT("Wrong PCI card base class/sub class. Disabling IDE channel #%lu\n", Channel);
        return ChannelDisabled;
    }

    return ChannelStateUnknown;
}

BOOLEAN NTAPI
PciIdeSyncAccessRequired(
    IN PVOID DeviceExtension)
{
    DPRINT1("PciIdeSyncAccessRequired %p\n", DeviceExtension);

    return FALSE; /* FIXME */
}

NTSTATUS NTAPI
PciIdeTransferModeSelect(
    IN PVOID DeviceExtension,
    IN PPCIIDE_TRANSFER_MODE_SELECT XferMode)
{
    ULONG i;

    DPRINT1("PciIdeTransferModeSelect(%p %p)\n", DeviceExtension, XferMode);

    for (i = 0; i < MAX_IDE_DEVICE; i++)
        XferMode->DevicePresent[i] = FALSE; /* FIXME */

    return STATUS_SUCCESS;
}

ULONG NTAPI
PciIdeUseDma(
    IN PVOID DeviceExtension,
    IN PUCHAR CdbCommand,
    IN PUCHAR Slave)
{
    DPRINT("PciIdeUseDma(%p %p %p)\n", DeviceExtension, CdbCommand, Slave);

    /* Nothing should prevent us to use DMA */
    return 1;
}

NTSTATUS NTAPI
PciIdeGetControllerProperties(
    IN PVOID DeviceExtension,
    OUT PIDE_CONTROLLER_PROPERTIES ControllerProperties)
{
    if (ControllerProperties->Size != sizeof(IDE_CONTROLLER_PROPERTIES))
        return STATUS_REVISION_MISMATCH;

    ControllerProperties->PciIdeChannelEnabled = PciIdeChannelEnabled;
    ControllerProperties->PciIdeSyncAccessRequired = PciIdeSyncAccessRequired;
    ControllerProperties->PciIdeTransferModeSelect = PciIdeTransferModeSelect;
    ControllerProperties->IgnoreActiveBitForAtaDevice = FALSE;
    ControllerProperties->AlwaysClearBusMasterInterrupt = TRUE;
    ControllerProperties->PciIdeUseDma = PciIdeUseDma;
    ControllerProperties->AlignmentRequirement = 1;
    ControllerProperties->DefaultPIO = 0; /* FIXME */
    ControllerProperties->PciIdeUdmaModesSupported = NULL; /* optional */
    
    ControllerProperties->SupportedTransferMode[0][0] =
    ControllerProperties->SupportedTransferMode[0][1] =
    ControllerProperties->SupportedTransferMode[1][0] =
    ControllerProperties->SupportedTransferMode[1][1] =
        PIO_MODE0 | PIO_MODE1 | PIO_MODE2 | PIO_MODE3 | PIO_MODE4 |
        SWDMA_MODE0 | SWDMA_MODE1 | SWDMA_MODE2 |
        MWDMA_MODE0 | MWDMA_MODE1 | MWDMA_MODE2 |
        UDMA_MODE0 | UDMA_MODE1 | UDMA_MODE2 | UDMA_MODE3 | UDMA_MODE4;

    return STATUS_SUCCESS;
}

NTSTATUS NTAPI
DriverEntry(
    IN PDRIVER_OBJECT DriverObject,
    IN PUNICODE_STRING RegistryPath)
{
    NTSTATUS Status;

    Status = PciIdeXInitialize(
        DriverObject,
        RegistryPath,
        PciIdeGetControllerProperties,
        0);

    return Status;
}