pciidex.h

Go to the documentation of this file.

/*
 * PROJECT:     PCI IDE bus driver extension
 * LICENSE:     See COPYING in the top level directory
 * PURPOSE:     Common header file
 * COPYRIGHT:   Copyright 2005 Hervé Poussineau <hpoussin@reactos.org>
 *              Copyright 2023 Dmitry Borisov <di.sean@protonmail.com>
 */
 
#pragma once
 
#include <ntddk.h>
#include <ntstrsafe.h>
#include <ntintsafe.h>
#include <initguid.h>
#include <wdmguid.h>
 
#include <ata.h>
#include <ide.h>
 
#include <scsi.h>
#include <reactos/drivers/ata/ata_shared.h>
#include <reactos/drivers/ata/ata_user.h>
#include "debug.h"
#include "ahci.h"
 
#include <debug/driverdbg.h>
 
typedef struct _CHANNEL_DATA_PATA          CHANNEL_DATA_PATA, *PCHANNEL_DATA_PATA;
typedef struct _CHANNEL_DATA_COMMON        CHANNEL_DATA_COMMON, *PCHANNEL_DATA_COMMON;
typedef struct _PCIIDE_PRD_TABLE_ENTRY     PCIIDE_PRD_TABLE_ENTRY, *PPCIIDE_PRD_TABLE_ENTRY;
 
#define TAG_PCIIDEX    'XedI'
 
#define ASSUME(cond) \
    do { \
        ASSERT(cond); \
        __assume(cond); \
    } while (0)
 
#define IS_FDO(p) \
    ((((PCOMMON_DEVICE_EXTENSION)(p))->Flags & DO_IS_FDO) != 0)
 
#define IS_PRIMARY_CHANNEL(PdoExtension)    (PdoExtension->Channel == 0)
 
#if defined(_MSC_VER)
#pragma section("PAGECONS", read)
#endif
 
#define PCIIDEX_PAGED_DATA    DATA_SEG("PAGECONS")
 
#define MAX_CHANNELS   32
 
#define PORT_TIMER_TICK_MS    10 // Timer interval is 10ms
 
#define DEV_NUMBER(Device)    ((Device)->TransportFlags & DEVICE_NUMBER_MASK)
 
typedef struct _PDO_DEVICE_EXTENSION    PDO_DEVICE_EXTENSION, *PPDO_DEVICE_EXTENSION;
typedef struct _ATA_CONTROLLER          ATA_CONTROLLER, *PATA_CONTROLLER;
 
_IRQL_requires_max_(APC_LEVEL)
typedef BOOLEAN
(ATA_PCI_MATCH_FN)(
    _In_ PVOID Context,
    _In_ ULONG BusNumber,
    _In_ PCI_SLOT_NUMBER PciSlot,
    _In_ PPCI_COMMON_HEADER PciConfig);
typedef ATA_PCI_MATCH_FN *PATA_PCI_MATCH_FN;
 
_IRQL_requires_max_(APC_LEVEL)
typedef IDE_CHANNEL_STATE
(CONTROLLER_CHANNEL_ENABLED)(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG Channel);
typedef CONTROLLER_CHANNEL_ENABLED *PCONTROLLER_CHANNEL_ENABLED;
 
_IRQL_requires_max_(DISPATCH_LEVEL)
typedef VOID
(CONTROLLER_START)(
    _In_ PATA_CONTROLLER Controller);
typedef CONTROLLER_START *PCONTROLLER_START;
 
_IRQL_requires_max_(DISPATCH_LEVEL)
typedef VOID
(CONTROLLER_STOP)(
    _In_ PATA_CONTROLLER Controller);
typedef CONTROLLER_STOP *PCONTROLLER_STOP;
 
typedef VOID
(CONTROLLER_FREE_RESOURCES)(
    _In_ PATA_CONTROLLER Controller);
typedef CONTROLLER_FREE_RESOURCES *PCONTROLLER_FREE_RESOURCES;
 
typedef NTSTATUS
(CONTROLLER_ATTACH_CHANNEL_EX)(
    _In_ PVOID ChannelContext,
    _In_ BOOLEAN Attach);
typedef CONTROLLER_ATTACH_CHANNEL_EX *PCONTROLLER_ATTACH_CHANNEL_EX;
 
_IRQL_requires_(DISPATCH_LEVEL)
typedef VOID
(CHANNEL_SET_MODE_EX)(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG Channel,
    _In_reads_(MAX_IDE_DEVICE) PCHANNEL_DEVICE_CONFIG* DeviceList);
typedef CHANNEL_SET_MODE_EX *PCHANNEL_SET_MODE_EX;
 
typedef NTSTATUS
(CHANNEL_ALLOCATE_MEMORY)(
    _In_ PVOID ChannelContext);
typedef CHANNEL_ALLOCATE_MEMORY *PCHANNEL_ALLOCATE_MEMORY;
 
typedef VOID
(CHANNEL_FREE_MEMORY)(
    _In_ PVOID ChannelContext);
typedef CHANNEL_FREE_MEMORY *PCHANNEL_FREE_MEMORY;
 
typedef VOID
(CHANNEL_ENABLE_INTERRUPTS)(
    _In_ PVOID ChannelContext,
    _In_ BOOLEAN Enable);
typedef CHANNEL_ENABLE_INTERRUPTS *PCHANNEL_ENABLE_INTERRUPTS;
 
typedef BOOLEAN
(CHANNEL_CHECK_INTERRUPT)(
    _In_ PCHANNEL_DATA_PATA ChanData);
typedef CHANNEL_CHECK_INTERRUPT *PCHANNEL_CHECK_INTERRUPT;
 
typedef VOID
(CHANNEL_LOAD_TASK_FILE)(
    _In_ PCHANNEL_DATA_PATA ChanData,
    _In_ PATA_DEVICE_REQUEST Request);
typedef CHANNEL_LOAD_TASK_FILE *PCHANNEL_LOAD_TASK_FILE;
 
typedef VOID
(CHANNEL_SAVE_TASK_FILE)(
    _In_ PCHANNEL_DATA_PATA ChanData,
    _Inout_ PATA_DEVICE_REQUEST Request);
typedef CHANNEL_SAVE_TASK_FILE *PCHANNEL_SAVE_TASK_FILE;
 
typedef UCHAR
(CHANNEL_READ_STATUS)(
    _In_ PCHANNEL_DATA_PATA ChanData);
typedef CHANNEL_READ_STATUS *PCHANNEL_READ_STATUS;
 
typedef BOOLEAN
(CHANNEL_READ_SCR)(
    _In_ PCHANNEL_DATA_PATA ChanData,
    _In_ SATA_SCR_REGISTER Register,
    _In_ ULONG PortNumber,
    _In_ PULONG Result);
typedef CHANNEL_READ_SCR *PCHANNEL_READ_SCR;
 
typedef BOOLEAN
(CHANNEL_WRITE_SCR)(
    _In_ PCHANNEL_DATA_PATA ChanData,
    _In_ SATA_SCR_REGISTER Register,
    _In_ ULONG PortNumber,
    _In_ ULONG Value);
typedef CHANNEL_WRITE_SCR *PCHANNEL_WRITE_SCR;
 
typedef struct _ATA_PCI_ENABLE_BITS
{
    UCHAR Register;
    UCHAR Mask;
    UCHAR ValueEnabled;
} ATA_PCI_ENABLE_BITS, *PATA_PCI_ENABLE_BITS;
 
typedef struct _ATA_CONTROLLER
{
    CM_PARTIAL_RESOURCE_DESCRIPTOR InterruptDesc;
    PKINTERRUPT InterruptObject;
    struct
    {
        USHORT VendorID;
        USHORT DeviceID;
        USHORT Command;
        UCHAR RevisionID;
        UCHAR ProgIf;
        UCHAR SubClass;
        UCHAR BaseClass;
        UCHAR CacheLineSize;
        USHORT SubVendorID;
        USHORT SubSystemID;
    } Pci;
 
    struct
    {
        ULONG Flags;
#define RANGE_IS_VALID   0x01
#define RANGE_IS_MEMORY  0x02
#define RANGE_IS_MAPPED  0x04
        ULONG Length;
        PVOID IoBase;
    } AccessRange[PCI_TYPE0_ADDRESSES];
 
    PGET_SET_DEVICE_DATA SetBusData;
    PGET_SET_DEVICE_DATA GetBusData;
    PVOID BusInterfaceContext;
    PVOID ChanDataBlock;
    PCONTROLLER_OBJECT HwSyncObject;
    PCONTROLLER_START Start;
    PCONTROLLER_STOP Stop;
    PCONTROLLER_FREE_RESOURCES FreeResources;
    PCONTROLLER_ATTACH_CHANNEL_EX AttachChannel;
    union
    {
        const ATA_PCI_ENABLE_BITS* ChannelEnableBits;
        PCONTROLLER_CHANNEL_ENABLED ChannelEnabledTest;
    };
    PVOID HwExt;
    ULONG AlignmentRequirement;
    ULONG MaxChannels;
    ULONG ChannelBitmap;
 
    PUCHAR IoBase;
    ULONG AhciVersion;
    ULONG AhciCapabilities;
    ULONG AhciCapabilitiesEx;
 
    ULONG QueueDepth;
    ULONG Flags;
#define CTRL_FLAG_NATIVE_PCI              0x00000001
#define CTRL_FLAG_IS_SIMPLEX              0x00000002
#define CTRL_FLAG_SATA_HBA_ACPI           0x00000002
#define CTRL_FLAG_USE_TEST_FUNCTION       0x00000004
#define CTRL_FLAG_IS_AHCI                 0x00000008
#define CTRL_FLAG_NON_PNP                 0x00000010
#define CTRL_FLAG_MANUAL_RES              0x00000020
#define CTRL_FLAG_DMA_INTERRUPT           0x00000040
 
    KSPIN_LOCK Lock;
    PVOID Channels[MAX_CHANNELS];
} ATA_CONTROLLER, *PATA_CONTROLLER;
 
typedef struct _CHANNEL_DATA_COMMON
{
    PPDO_DEVICE_EXTENSION PdoExt;
    CM_PARTIAL_RESOURCE_DESCRIPTOR InterruptDesc;
    PKINTERRUPT InterruptObject;
    PCHANNEL_ALLOCATE_MEMORY AllocateMemory;
    PCHANNEL_FREE_MEMORY FreeMemory;
    PCHANNEL_SET_MODE_EX SetTransferMode;
    PCHANNEL_PREPARE_PRD_TABLE PreparePrdTable;
    PCHANNEL_PREPARE_IO PrepareIo;
    PCHANNEL_START_IO StartIo;
    PCHANNEL_ENABLE_INTERRUPTS EnableInterrupts;
    PATA_CONTROLLER Controller;
    PDMA_ADAPTER DmaAdapter;
    ULONG TransferModeSupported;
    ULONG MaximumTransferLength;
    ULONG Channel;
    struct
    {
        ULONG TransferModeSupported;
        ULONG MaximumTransferLength;
    } Current;
    ULONG MaximumPhysicalPages;
    ULONG ChanInfo;
#define CHANNEL_FLAG_IO32                           0x00000001
#define CHANNEL_FLAG_DRIVE0_DMA_CAPABLE             0x00000002
#define CHANNEL_FLAG_DRIVE1_DMA_CAPABLE             0x00000004
#define CHANNEL_FLAG_CONTROL_PORT_BASE_MAPPED       0x00000008
#define CHANNEL_FLAG_COMMAND_PORT_BASE_MAPPED       0x00000010
#define CHANNEL_FLAG_DMA_PORT_BASE_MAPPED           0x00000020
#define CHANNEL_FLAG_64_BIT_DMA                     0x00000040
#define CHANNEL_FLAG_PRIMARY_ADDRESS_CLAIMED        0x00000080
#define CHANNEL_FLAG_SECONDARY_ADDRESS_CLAIMED      0x00000100
#define CHANNEL_FLAG_PIO_VIA_DMA                    0x00000200
#define CHANNEL_FLAG_NO_SLAVE                       0x00000400
#define CHANNEL_FLAG_IS_EXTERNAL                    0x00000800
#define CHANNEL_FLAG_IS_PMP                         0x00001000
#define CHANNEL_FLAG_HAS_FBS                        0x00002000
#define CHANNEL_FLAG_FBS_ENABLED                    0x00004000
#define CHANNEL_FLAG_HAS_ACPI_GTM                   0x00008000
#define CHANNEL_FLAG_HAS_NCQ                        0x00010000
#define CHANNEL_FLAG_PIO_FOR_LBA48_XFER             0x00020000 // TODO: Not used yet
#define CHANNEL_FLAG_NO_ATAPI_DMA                   0x00040000
#define CHANNEL_FLAG_DMA_BEFORE_CMD                 0x00080000
#define CHANNEL_FLAG_MRES_TF                        0x00100000 // MRES_TF
#define CHANNEL_FLAG_MRES_DMA                       0x00200000 // MRES_DMA
#define CHANNEL_FLAG_MRES_CTRL                      0x00400000 // MRES_CTRL
#define CHANNEL_FLAG_CBUS                           0x80000000
 
    PVOID PortContext;
    PPORT_NOTIFICATION PortNotification;
    ULONG ActiveSlotsBitmap;
    ULONG ActiveQueuedSlotsBitmap;
    PATA_DEVICE_REQUEST* Slots;
} CHANNEL_DATA_COMMON, *PCHANNEL_DATA_COMMON;
 
typedef struct _CHANNEL_DATA_PATA
{
    CHANNEL_DATA_COMMON;
 
    PCHANNEL_LOAD_TASK_FILE LoadTaskFile;
    PCHANNEL_SAVE_TASK_FILE SaveTaskFile;
    PCHANNEL_READ_STATUS ReadStatus;
    PPCIIDE_PRD_TABLE_ENTRY PrdTable;
    ULONG PrdTablePhysicalAddress;
    IDE_REGISTERS Regs;
    PCHANNEL_CHECK_INTERRUPT CheckInterrupt;
    PUCHAR DataBuffer;
    ULONG BytesToTransfer;
    ULONG CommandFlags;
    ULONG DrqByteCount;
#if defined(_M_IX86)
    UCHAR LastAtaBankId;
#endif
    BOOLEAN IsPollingActive;
    KDPC PollingTimerDpc;
    PCHANNEL_READ_SCR ScrRead;
    PCHANNEL_WRITE_SCR ScrWrite;
    IDE_ACPI_TIMING_MODE_BLOCK CurrentTimingMode;
    ULONG HwFlags;
    PUCHAR HwExt[ANYSIZE_ARRAY];
} CHANNEL_DATA_PATA, *PCHANNEL_DATA_PATA;
 
typedef struct _CHANNEL_INFO_AHCI
{
    ULONG64 ReceivedFisPhys;
    ULONG64 CommandListPhys;
    PVOID ReceivedFisOriginal;
    PVOID CommandListOriginal;
    PVOID CommandTableOriginal[AHCI_MAX_COMMAND_SLOTS];
    ULONG CommandTableSize[AHCI_MAX_COMMAND_SLOTS];
    ULONG CommandListSize;
    PHYSICAL_ADDRESS ReceivedFisPhysOriginal;
    PHYSICAL_ADDRESS CommandListPhysOriginal;
    PHYSICAL_ADDRESS CommandTablePhysOriginal[AHCI_MAX_COMMAND_SLOTS];
    PVOID LocalBuffer;
} CHANNEL_INFO_AHCI, *PCHANNEL_INFO_AHCI;
 
typedef struct _CHANNEL_DATA_AHCI
{
    CHANNEL_DATA_COMMON;
 
    PVOID IoBase;
    PAHCI_RECEIVED_FIS ReceivedFis;
    PAHCI_COMMAND_LIST CommandList;
    PAHCI_COMMAND_TABLE CommandTable[AHCI_MAX_COMMAND_SLOTS];
    UCHAR LastPmpDeviceNumber;
    UCHAR LastFbsDeviceNumber;
    ULONG TotalPortCount;
    CHANNEL_INFO_AHCI Mem;
} CHANNEL_DATA_AHCI, *PCHANNEL_DATA_AHCI;
 
typedef struct _PCIIDEX_DRIVER_EXTENSION
{
    PCONTROLLER_PROPERTIES HwGetControllerProperties;
    ULONG MiniControllerExtensionSize;
} PCIIDEX_DRIVER_EXTENSION, *PPCIIDEX_DRIVER_EXTENSION;
 
typedef struct _COMMON_DEVICE_EXTENSION
{
    _Write_guarded_by_(_Global_interlock_)
    volatile LONG PageFiles;
 
    _Write_guarded_by_(_Global_interlock_)
    volatile LONG HibernateFiles;
 
    _Write_guarded_by_(_Global_interlock_)
    volatile LONG DumpFiles;
 
    union
    {
        PDEVICE_OBJECT LowerDeviceObject;
 
        PVOID FdoExt;
    };
 
    PDEVICE_OBJECT Self;
 
    ULONG Flags;
#define DO_IS_FDO        0x80000000
 
    IO_REMOVE_LOCK RemoveLock;
} COMMON_DEVICE_EXTENSION, *PCOMMON_DEVICE_EXTENSION;
 
typedef struct _FDO_DEVICE_EXTENSION
{
    COMMON_DEVICE_EXTENSION Common;
 
    PDRIVER_OBJECT DriverObject;
    PDEVICE_OBJECT Pdo;
    ULONG ControllerNumber;
    FAST_MUTEX PdoListSyncMutex;
    _Guarded_by_(PdoListSyncMutex)
    LIST_ENTRY PdoListHead;
    ATA_CONTROLLER Controller;
    IDE_CONTROLLER_PROPERTIES Properties;
 
    /* Must be the last entry */
    PUCHAR MiniControllerExtension[0];
} FDO_DEVICE_EXTENSION, *PFDO_DEVICE_EXTENSION;
 
typedef struct _PDO_DEVICE_EXTENSION
{
    COMMON_DEVICE_EXTENSION Common;
 
    ULONG Channel;
    ULONG Flags;
#define PDO_FLAG_NOT_PRESENT           0x00000001
#define PDO_FLAG_REPORTED_MISSING      0x00000002
 
    PCHANNEL_DATA_COMMON ChanData;
 
    LIST_ENTRY ListEntry;
} PDO_DEVICE_EXTENSION, *PPDO_DEVICE_EXTENSION;
 
VOID
AtaWritePortUchar(
    _In_ PUCHAR Port,
    _In_ UCHAR Value,
    _In_ ULONG MmioFlags);
 
#include "pata.h"
 
extern NTSYSAPI ULONG InitSafeBootMode;
 
/* acpi.c *********************************************************************/
 
BOOLEAN
AtaAcpiGetTimingMode(
    _In_ PDEVICE_OBJECT DeviceObject,
    _Out_ PIDE_ACPI_TIMING_MODE_BLOCK TimingMode);
 
NTSTATUS
AtaAcpiSetTimingMode(
    _In_ PDEVICE_OBJECT DeviceObject,
    _In_ PIDE_ACPI_TIMING_MODE_BLOCK TimingMode,
    _In_opt_ PIDENTIFY_DEVICE_DATA IdBlock1,
    _In_opt_ PIDENTIFY_DEVICE_DATA IdBlock2);
 
CODE_SEG("PAGE")
PVOID
AtaAcpiGetTaskFile(
    _In_ PDEVICE_OBJECT DeviceObject);
 
CODE_SEG("PAGE")
VOID
AtaAcpiSetDeviceData(
    _In_ PDEVICE_OBJECT DeviceObject,
    _In_ PIDENTIFY_DEVICE_DATA IdBlock);
 
/* fdo.c **********************************************************************/
 
CODE_SEG("PAGE")
CONTROLLER_ATTACH_CHANNEL AtaCtrlAttachChannel;
 
CODE_SEG("PAGE")
CHANNEL_SET_DEVICE_DATA AtaCtrlSetDeviceData;
 
CODE_SEG("PAGE")
CHANNEL_GET_INIT_TASK_FILE AtaCtrlGetInitTaskFile;
 
CHANNEL_SET_MODE AtaCtrlSetTransferMode;
CHANNEL_DOWNGRADE_INTERFACE_SPEED AtaCtrlDowngradeInterfaceSpeed;
CHANNEL_ABORT_CHANNEL AtaCtrlAbortChannel;
 
CODE_SEG("PAGE")
CONTROLLER_PNP_START_DEVICE PciIdeXFdoStartDevice;
 
CODE_SEG("PAGE")
CONTROLLER_PNP_REMOVE_DEVICE PciIdeXFdoRemoveDevice;
 
DECLSPEC_NOINLINE_FROM_PAGED
VOID
AtaChanEnableInterruptsSync(
    _In_ PVOID ChannelContext,
    _In_ BOOLEAN Enable);
 
CODE_SEG("PAGE")
PVOID
AtaCtrlPciMapBar(
    _In_ PATA_CONTROLLER Controller,
    _In_range_(0, PCI_TYPE0_ADDRESSES) ULONG Index,
    _In_ ULONG MinimumIoLength);
 
CODE_SEG("PAGE")
IDE_CHANNEL_STATE
PciIdeXGetChannelState(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG Channel);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeXFdoDispatchPnp(
    _In_ PFDO_DEVICE_EXTENSION FdoExtension,
    _Inout_ PIRP Irp);
 
/* miniport.c *****************************************************************/
 
CODE_SEG("PAGE")
IDE_CHANNEL_STATE
PciIdeXChannelState(
    _In_ PFDO_DEVICE_EXTENSION FdoExtension,
    _In_ ULONG Channel);
 
/* pciidex.c ******************************************************************/
 
CODE_SEG("PAGE")
DRIVER_INITIALIZE DriverEntry;
 
CODE_SEG("PAGE")
DRIVER_UNLOAD PciIdeXUnload;
 
CODE_SEG("PAGE")
DRIVER_ADD_DEVICE PciIdeXAddDevice;
 
_Dispatch_type_(IRP_MJ_SYSTEM_CONTROL)
CODE_SEG("PAGE")
DRIVER_DISPATCH_PAGED PciIdeXDispatchWmi;
 
IO_COMPLETION_ROUTINE PciIdeXPdoCompletionRoutine;
 
BOOLEAN
PciFindDevice(
    _In_ __callback PATA_PCI_MATCH_FN MatchFunction,
    _In_ PVOID Context);
 
VOID
PciRead(
    _In_ PATA_CONTROLLER Controller,
    _Out_writes_bytes_all_(BufferLength) PVOID Buffer,
    _In_ ULONG ConfigDataOffset,
    _In_ ULONG BufferLength);
 
VOID
PciWrite(
    _In_ PATA_CONTROLLER Controller,
    _In_reads_bytes_(BufferLength) PVOID Buffer,
    _In_ ULONG ConfigDataOffset,
    _In_ ULONG BufferLength);
 
VOID
AtaSleep(VOID);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeXPnpRepeatRequest(
    _In_ PCOMMON_DEVICE_EXTENSION CommonExt,
    _In_ PIRP Irp,
    _In_opt_ PDEVICE_CAPABILITIES DeviceCapabilities);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeXPnpQueryDeviceUsageNotification(
    _In_ PCOMMON_DEVICE_EXTENSION CommonExt,
    _In_ PIRP Irp);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeXPnpQueryPnpDeviceState(
    _In_ PCOMMON_DEVICE_EXTENSION CommonExt,
    _In_ PIRP Irp);
 
/* pdo.c **********************************************************************/
 
_Dispatch_type_(IRP_MJ_PNP)
CODE_SEG("PAGE")
DRIVER_DISPATCH_PAGED PciIdeXDispatchPnp;
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeXPdoRemoveDevice(
    _In_ PPDO_DEVICE_EXTENSION PdoExtension,
    _In_ PIRP Irp,
    _In_ BOOLEAN FinalRemove);
 
/* power.c ********************************************************************/
 
_Dispatch_type_(IRP_MJ_POWER)
DRIVER_DISPATCH_RAISED PciIdeXDispatchPower;
 
/* ahci_generic.c *************************************************************/
 
CODE_SEG("PAGE")
NTSTATUS
AhciGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
/* ahci_hw.c ******************************************************************/
 
CHANNEL_ENABLE_INTERRUPTS AtaAhciEnableInterrupts;
CHANNEL_ENUMERATE_CHANNEL AtaAhciEnumerateChannel;
CHANNEL_IDENTIFY_DEVICE AtaAhciIdentifyDevice;
CHANNEL_RESET_CHANNEL AtaAhciResetChannel;
 
VOID
AtaAhciStopDma(
    _In_ PCHANNEL_DATA_AHCI ChanData);
 
VOID
AtaAhciSaveTaskFile(
    _In_ PCHANNEL_DATA_AHCI ChanData,
    _Inout_ PATA_DEVICE_REQUEST Request,
    _In_ BOOLEAN ProcessErrorStatus);
 
VOID
AtaAhciHandleFatalError(
    _In_ PCHANNEL_DATA_AHCI ChanData);
 
VOID
AtaAhciHandlePortStateChange(
    _In_ PCHANNEL_DATA_AHCI ChanData,
    _In_ ULONG InterruptStatus);
 
BOOLEAN
AtaAhciDowngradeInterfaceSpeed(
    _In_ PCHANNEL_DATA_AHCI ChanData);
 
ULONG
AtaAhciChannelGetMaximumDeviceCount(
    _In_ PVOID ChannelContext);
 
/* ahci_io.c ******************************************************************/
 
CHANNEL_START_IO AtaAhciStartIo;
CHANNEL_PREPARE_IO AtaAhciPrepareIo;
CHANNEL_PREPARE_PRD_TABLE AtaAhciPreparePrdTable;
CHANNEL_ALLOCATE_SLOT AtaAhciAllocateSlot;
KSERVICE_ROUTINE AtaAhciHbaIsr;
 
/* pata_generic.c *************************************************************/
 
CHANNEL_SET_MODE_EX SataSetTransferMode;
 
CODE_SEG("PAGE")
CONTROLLER_ATTACH_CHANNEL_EX PciIdeAttachChannel;
 
VOID
AtaSelectTimings(
    _In_reads_(MAX_IDE_DEVICE) PCHANNEL_DEVICE_CONFIG* DeviceList,
    _Out_writes_all_(MAX_IDE_DEVICE) PATA_TIMING Timings,
    _In_range_(>, 0) ULONG ClockPeriodPs,
    _In_ ULONG Flags);
 
CODE_SEG("PAGE")
VOID
PciIdeInitTaskFileIoResources(
    _In_ PCHANNEL_DATA_PATA ChanData,
    _In_ ULONG_PTR CommandPortBase,
    _In_ ULONG_PTR ControlPortBase,
    _In_ ULONG CommandBlockSpare);
 
CODE_SEG("PAGE")
IDE_CHANNEL_STATE
PciIdeGetChannelState(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG Channel);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeParseResources(
    _In_ PCHANNEL_DATA_PATA ChanData,
    _In_ PCM_RESOURCE_LIST ResourcesTranslated);
 
CODE_SEG("PAGE")
VOID
PciIdeFreeResources(
    _In_ PVOID ChannelContext);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeConnectInterrupt(
    _In_ PVOID ChannelContext);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeCreateChannelData(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG HwExtensionSize);
 
CODE_SEG("PAGE")
NTSTATUS
PciIdeGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
/* pata_hw.c ******************************************************************/
 
CHANNEL_RESET_CHANNEL PataResetChannel;
CHANNEL_ENUMERATE_CHANNEL PataEnumerateChannel;
CHANNEL_IDENTIFY_DEVICE PataIdentifyDevice;
 
ULONG
PataChannelGetMaximumDeviceCount(
    _In_ PVOID ChannelContext);
 
/* pata_io.c ******************************************************************/
 
CHANNEL_ALLOCATE_SLOT PataAllocateSlot;
CHANNEL_PREPARE_PRD_TABLE PciIdePreparePrdTable;
CHANNEL_PREPARE_IO PataPrepareIo;
CHANNEL_START_IO PataStartIo;
KSERVICE_ROUTINE PataChannelIsr;
KSERVICE_ROUTINE PciIdeChannelIsr;
CHANNEL_CHECK_INTERRUPT PciIdeCheckInterrupt;
CHANNEL_LOAD_TASK_FILE PataLoadTaskFile;
CHANNEL_SAVE_TASK_FILE PataSaveTaskFile;
CHANNEL_READ_STATUS PataReadStatus;
KDEFERRED_ROUTINE PataPollingTimerDpc;
 
VOID
AtaWriteBlock16(
    _In_ PUSHORT Port,
    _In_ PUSHORT Buffer,
    _In_ ULONG Count,
    _In_ ULONG MmioFlags);
 
VOID
AtaReadBlock16(
    _In_ PUSHORT Port,
    _In_ PUSHORT Buffer,
    _In_ ULONG Count,
    _In_ ULONG MmioFlags);
 
VOID
AtaWriteBlock32(
    _In_ PULONG Port,
    _In_ PULONG Buffer,
    _In_ ULONG Count,
    _In_ ULONG MmioFlags);
 
VOID
AtaReadBlock32(
    _In_ PULONG Port,
    _In_ PULONG Buffer,
    _In_ ULONG Count,
    _In_ ULONG MmioFlags);
 
UCHAR
AtaReadPortUchar(
    _In_ PUCHAR Port,
    _In_ ULONG MmioFlags);
 
VOID
AtaWritePortUlong(
    _In_ PULONG Port,
    _In_ ULONG Value,
    _In_ ULONG MmioFlags);
 
VOID
PciIdeDmaStop(
    _In_ PCHANNEL_DATA_PATA ChanData);
 
/* misc ***********************************************************************/
 
#if defined(ATA_DETECT_LEGACY_DEVICES)
CODE_SEG("PAGE")
NTSTATUS
PataGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller,
    _In_ PCM_RESOURCE_LIST ResourcesTranslated);
#endif
 
CODE_SEG("PAGE")
NTSTATUS
AmdGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
AtiGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
CmdGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
Sil680GetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
IntelGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
PcTechGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
SvwPataGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
SvwSataGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
ToshibaGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CODE_SEG("PAGE")
NTSTATUS
ViaGetControllerProperties(
    _Inout_ PATA_CONTROLLER Controller);
 
CHANNEL_SET_MODE_EX SvwSetTransferMode;
 
CODE_SEG("PAGE")
BOOLEAN
SvwHasUdmaCable(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG Channel);
 
VOID
ViaClampTimings(
    _Inout_ PATA_TIMING Timing);
 
FORCEINLINE
ULONG
CountSetBits(
    _In_ ULONG x)
{
    x -= x >> 1 & 0x55555555;
    x = (x & 0x33333333) + (x >> 2 & 0x33333333);
 
    return ((x + (x >> 4)) & 0x0F0F0F0F) * 0x01010101 >> 24;
}
 
FORCEINLINE
BOOLEAN
IsPowerOfTwo(
    _In_ ULONG x)
{
    /* Also exclude zero numbers */
    return (x != 0) && ((x & (x - 1)) == 0);
}
 
FORCEINLINE
UCHAR
PciRead8(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG ConfigDataOffset)
{
    UCHAR Result;
 
    PciRead(Controller, &Result, ConfigDataOffset, sizeof(Result));
    return Result;
}
 
FORCEINLINE
USHORT
PciRead16(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG ConfigDataOffset)
{
    USHORT Result;
 
    PciRead(Controller, &Result, ConfigDataOffset, sizeof(Result));
    return Result;
}
 
FORCEINLINE
ULONG
PciRead32(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG ConfigDataOffset)
{
    ULONG Result;
 
    PciRead(Controller, &Result, ConfigDataOffset, sizeof(Result));
    return Result;
}
 
FORCEINLINE
VOID
PciWrite8(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG ConfigDataOffset,
    _In_ UCHAR Value)
{
    PciWrite(Controller, &Value, ConfigDataOffset, sizeof(Value));
}
 
FORCEINLINE
VOID
PciWrite16(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG ConfigDataOffset,
    _In_ USHORT Value)
{
    PciWrite(Controller, &Value, ConfigDataOffset, sizeof(Value));
}
 
FORCEINLINE
VOID
PciWrite32(
    _In_ PATA_CONTROLLER Controller,
    _In_ ULONG ConfigDataOffset,
    _In_ ULONG Value)
{
    PciWrite(Controller, &Value, ConfigDataOffset, sizeof(Value));
}