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audk/EdkModulePkg/Bus/Pci/IdeBus/Dxe/idebus.c

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/** @file
Copyright (c) 2006, Intel Corporation
All rights reserved. This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
@par Revision Reference:
This module is modified from DXE\IDE module for Ide Contriller Init support
**/
#include "idebus.h"
#define PCI_CLASS_MASS_STORAGE 0x01
#define PCI_SUB_CLASS_IDE 0x01
//
// IDE Bus Driver Binding Protocol Instance
//
EFI_DRIVER_BINDING_PROTOCOL gIDEBusDriverBinding = {
IDEBusDriverBindingSupported,
IDEBusDriverBindingStart,
IDEBusDriverBindingStop,
0x10,
NULL,
NULL
};
//
// ***********************************************************************************
// IDEBusDriverBindingSupported
// ***********************************************************************************
//
/**
Register Driver Binding protocol for this driver.
@param[in] This -- A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param[in] ControllerHandle -- The handle of the controller to test.
@param[in] RemainingDevicePath -- A pointer to the remaining portion of a device path.
@retval EFI_SUCCESS Driver loaded.
@retval other Driver not loaded.
**/
EFI_STATUS
EFIAPI
IDEBusDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
// TODO: Controller - add argument and description to function comment
// TODO: EFI_UNSUPPORTED - add return value to function comment
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
EFI_DEV_PATH *Node;
EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeInit;
if (RemainingDevicePath != NULL) {
Node = (EFI_DEV_PATH *) RemainingDevicePath;
if (Node->DevPath.Type != MESSAGING_DEVICE_PATH ||
Node->DevPath.SubType != MSG_ATAPI_DP ||
DevicePathNodeLength(&Node->DevPath) != sizeof(ATAPI_DEVICE_PATH)) {
return EFI_UNSUPPORTED;
}
}
//
// Open the IO Abstraction(s) needed to perform the supported test
//
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &ParentDevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
if (EFI_ERROR (Status)) {
return Status;
}
//
// Clsoe protocol, don't use device path protocol in the .Support() function
//
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
//
// Verify the Ide Controller Init Protocol, which installed by the
// IdeController module.
// Note 1: PciIo protocol has been opened BY_DRIVER by ide_init, so We can't
// open BY_DRIVER here) That's why we don't check pciio protocol
// Note 2: ide_init driver check ide controller's pci config space, so we dont
// check here any more to save code size
//
Status = gBS->OpenProtocol (
Controller,
&gEfiIdeControllerInitProtocolGuid,
(VOID **) &IdeInit,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
//
// If protocols were opened normally, closed it
//
gBS->CloseProtocol (
Controller,
&gEfiIdeControllerInitProtocolGuid,
This->DriverBindingHandle,
Controller
);
return Status;
}
//
// ***********************************************************************************
// IDEBusDriverBindingStart
// ***********************************************************************************
//
/**
Start this driver on Controller by detecting all disks and installing
BlockIo protocol on them.
@param This Protocol instance pointer.
@param Controller Handle of device to bind driver to.
@param RemainingDevicePath Not used, always produce all possible children.
@retval EFI_SUCCESS This driver is added to ControllerHandle.
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle.
@retval other This driver does not support this device.
**/
EFI_STATUS
EFIAPI
IDEBusDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
{
EFI_STATUS Status;
EFI_STATUS SavedStatus;
EFI_PCI_IO_PROTOCOL *PciIo;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
EFI_DEV_PATH *Node;
UINT8 IdeChannel;
UINT8 BeginningIdeChannel;
UINT8 EndIdeChannel;
UINT8 IdeDevice;
UINT8 BeginningIdeDevice;
UINT8 EndIdeDevice;
IDE_BLK_IO_DEV *IdeBlkIoDevice[IdeMaxChannel][IdeMaxDevice];
IDE_BLK_IO_DEV *IdeBlkIoDevicePtr;
IDE_REGISTERS_BASE_ADDR IdeRegsBaseAddr[IdeMaxChannel];
ATA_TRANSFER_MODE TransferMode;
ATA_DRIVE_PARMS DriveParameters;
EFI_DEV_PATH NewNode;
UINT8 ConfigurationOptions;
UINT16 CommandBlockBaseAddr;
UINT16 ControlBlockBaseAddr;
UINTN DataSize;
UINT32 Attributes;
IDE_BUS_DRIVER_PRIVATE_DATA *IdeBusDriverPrivateData;
EFI_EVENT Event;
//
// Local variables declaration for IdeControllerInit support
//
EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeInit;
BOOLEAN EnumAll;
BOOLEAN ChannelEnabled;
UINT8 ChannelCount;
UINT8 MaxDevices;
EFI_IDENTIFY_DATA IdentifyData;
EFI_ATA_COLLECTIVE_MODE *SupportedModes;
IdeBusDriverPrivateData = NULL;
SupportedModes = NULL;
//
// Perform IdeBus initialization
//
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &ParentDevicePath,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) {
return Status;
}
//
// Now open the IDE_CONTROLLER_INIT protocol. Step7.1
//
Status = gBS->OpenProtocol (
Controller,
&gEfiIdeControllerInitProtocolGuid,
(VOID **) &IdeInit,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
//
// The following OpenProtocol function with _GET_PROTOCOL attribute and
// will not return EFI_ALREADY_STARTED, so save it for now
//
SavedStatus = Status;
if ((EFI_ERROR (Status)) && (Status != EFI_ALREADY_STARTED)) {
DEBUG ((EFI_D_ERROR, "Open Init, Status=%x", Status));
//
// open protocol is not SUCCESS or not ALREADY_STARTED, error exit
//
goto ErrorExit;
}
//
// Save Enumall and ChannelCount. Step7.2
//
EnumAll = IdeInit->EnumAll;
ChannelCount = IdeInit->ChannelCount;
//
// Consume PCI I/O protocol. Note that the OpenProtocol with _GET_PROTOCOL
// attribute will not return EFI_ALREADY_STARTED
//
Status = gBS->OpenProtocol (
Controller,
&gEfiPciIoProtocolGuid,
(VOID **) &PciIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "Open PciIo, Status=%x", Status));
goto ErrorExit;
}
//
// We must check EFI_ALREADY_STARTED because many ATAPI devices are removable
//
if (SavedStatus != EFI_ALREADY_STARTED) {
IdeBusDriverPrivateData = AllocatePool (sizeof (IDE_BUS_DRIVER_PRIVATE_DATA));
if (IdeBusDriverPrivateData == NULL) {
Status = EFI_OUT_OF_RESOURCES;
goto ErrorExit;
}
ZeroMem (IdeBusDriverPrivateData, sizeof (IDE_BUS_DRIVER_PRIVATE_DATA));
Status = gBS->InstallMultipleProtocolInterfaces (
&Controller,
&gEfiCallerIdGuid,
IdeBusDriverPrivateData,
NULL
);
if (EFI_ERROR (Status)) {
goto ErrorExit;
}
} else {
Status = gBS->OpenProtocol (
Controller,
&gEfiCallerIdGuid,
(VOID **) &IdeBusDriverPrivateData,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
IdeBusDriverPrivateData = NULL;
goto ErrorExit;
}
}
Status = PciIo->Attributes (
PciIo,
EfiPciIoAttributeOperationEnable,
EFI_PCI_DEVICE_ENABLE,
NULL
);
if (EFI_ERROR (Status)) {
goto ErrorExit;
}
//
// Read the environment variable that contains the IDEBus Driver's
// Config options that were set by the Driver Configuration Protocol
//
DataSize = sizeof (ConfigurationOptions);
Status = gRT->GetVariable (
(CHAR16 *) L"Configuration",
&gEfiCallerIdGuid,
&Attributes,
&DataSize,
&ConfigurationOptions
);
if (EFI_ERROR (Status)) {
ConfigurationOptions = 0x0f;
}
if (EnumAll) {
//
// If IdeInit->EnumAll is TRUE, must enumerate all IDE device anyway
//
BeginningIdeChannel = IdePrimary;
EndIdeChannel = IdeSecondary;
BeginningIdeDevice = IdeMaster;
EndIdeDevice = IdeSlave;
} else if (RemainingDevicePath == NULL) {
//
// RemainingDevicePath is NULL, scan IDE bus for each device;
//
BeginningIdeChannel = IdePrimary;
EndIdeChannel = IdeSecondary;
BeginningIdeDevice = IdeMaster;
//
// default, may be redefined by IdeInit
//
EndIdeDevice = IdeSlave;
} else {
//
// RemainingDevicePath is not NULL, only scan the specified device.
//
Node = (EFI_DEV_PATH *) RemainingDevicePath;
BeginningIdeChannel = Node->Atapi.PrimarySecondary;
EndIdeChannel = BeginningIdeChannel;
BeginningIdeDevice = Node->Atapi.SlaveMaster;
EndIdeDevice = BeginningIdeDevice;
}
//
// Obtain IDE IO port registers' base addresses
//
Status = GetIdeRegistersBaseAddr (PciIo, IdeRegsBaseAddr);
if (EFI_ERROR (Status)) {
goto ErrorExit;
}
//
// Report status code: begin IdeBus initialization
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_IOB_PC_RESET),
ParentDevicePath
);
//
// Strictly follow the enumeration based on IDE_CONTROLLER_INIT protocol
//
for (IdeChannel = BeginningIdeChannel; IdeChannel <= EndIdeChannel; IdeChannel++) {
IdeInit->NotifyPhase (IdeInit, EfiIdeBeforeChannelEnumeration, IdeChannel);
//
// now obtain channel information fron IdeControllerInit protocol. Step9
//
Status = IdeInit->GetChannelInfo (
IdeInit,
IdeChannel,
&ChannelEnabled,
&MaxDevices
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "[GetChannel, Status=%x]", Status));
continue;
}
if (!ChannelEnabled) {
continue;
}
EndIdeDevice = (UINT8) EFI_MIN ((MaxDevices - 1), EndIdeDevice);
//
// Now inform the IDE Controller Init Module. Sept10
//
IdeInit->NotifyPhase (IdeInit, EfiIdeBeforeChannelReset, IdeChannel);
//
// No reset channel function implemented. Sept11
//
IdeInit->NotifyPhase (IdeInit, EfiIdeAfterChannelReset, IdeChannel);
//
// Step13
//
IdeInit->NotifyPhase (
IdeInit,
EfiIdeBusBeforeDevicePresenceDetection,
IdeChannel
);
//
// -- 1st inner loop --- Master/Slave ------------ Step14
//
for (IdeDevice = BeginningIdeDevice; IdeDevice <= EndIdeDevice; IdeDevice++) {
//
// Check whether the configuration options allow this device
//
if (!(ConfigurationOptions & (1 << (IdeChannel * 2 + IdeDevice)))) {
continue;
}
//
// The device has been scanned in another Start(), No need to scan it again
// for perf optimization.
//
if (IdeBusDriverPrivateData->HaveScannedDevice[IdeChannel * 2 + IdeDevice]) {
continue;
}
//
// create child handle for the detected device.
//
IdeBlkIoDevice[IdeChannel][IdeDevice] = AllocatePool (sizeof (IDE_BLK_IO_DEV));
if (IdeBlkIoDevice[IdeChannel][IdeDevice] == NULL) {
continue;
}
IdeBlkIoDevicePtr = IdeBlkIoDevice[IdeChannel][IdeDevice];
ZeroMem (IdeBlkIoDevicePtr, sizeof (IDE_BLK_IO_DEV));
IdeBlkIoDevicePtr->Signature = IDE_BLK_IO_DEV_SIGNATURE;
IdeBlkIoDevicePtr->Channel = IdeChannel;
IdeBlkIoDevicePtr->Device = IdeDevice;
//
// initialize Block IO interface's Media pointer
//
IdeBlkIoDevicePtr->BlkIo.Media = &IdeBlkIoDevicePtr->BlkMedia;
//
// Initialize IDE IO port addresses, including Command Block registers
// and Control Block registers
//
IdeBlkIoDevicePtr->IoPort = AllocatePool (sizeof (IDE_BASE_REGISTERS));
if (IdeBlkIoDevicePtr->IoPort == NULL) {
continue;
}
ZeroMem (IdeBlkIoDevicePtr->IoPort, sizeof (IDE_BASE_REGISTERS));
CommandBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].CommandBlockBaseAddr;
ControlBlockBaseAddr = IdeRegsBaseAddr[IdeChannel].ControlBlockBaseAddr;
IdeBlkIoDevicePtr->IoPort->Data = CommandBlockBaseAddr;
(*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Reg1) = (UINT16) (CommandBlockBaseAddr + 0x01);
IdeBlkIoDevicePtr->IoPort->SectorCount = (UINT16) (CommandBlockBaseAddr + 0x02);
IdeBlkIoDevicePtr->IoPort->SectorNumber = (UINT16) (CommandBlockBaseAddr + 0x03);
IdeBlkIoDevicePtr->IoPort->CylinderLsb = (UINT16) (CommandBlockBaseAddr + 0x04);
IdeBlkIoDevicePtr->IoPort->CylinderMsb = (UINT16) (CommandBlockBaseAddr + 0x05);
IdeBlkIoDevicePtr->IoPort->Head = (UINT16) (CommandBlockBaseAddr + 0x06);
(*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Reg) = (UINT16) (CommandBlockBaseAddr + 0x07);
(*(UINT16 *) &IdeBlkIoDevicePtr->IoPort->Alt) = ControlBlockBaseAddr;
IdeBlkIoDevicePtr->IoPort->DriveAddress = (UINT16) (ControlBlockBaseAddr + 0x01);
IdeBlkIoDevicePtr->IoPort->MasterSlave = (UINT16) ((IdeDevice == IdeMaster) ? 1 : 0);
IdeBlkIoDevicePtr->PciIo = PciIo;
IdeBlkIoDevicePtr->IdeBusDriverPrivateData = IdeBusDriverPrivateData;
IdeBlkIoDevicePtr->IoPort->BusMasterBaseAddr = IdeRegsBaseAddr[IdeChannel].BusMasterBaseAddr;
//
// Discover device, now!
//
PERF_START (0, "DiscoverIdeDevice", "IDE", 0);
Status = DiscoverIdeDevice (IdeBlkIoDevicePtr);
PERF_END (0, "DiscoverIdeDevice", "IDE", 0);
IdeBusDriverPrivateData->HaveScannedDevice[IdeChannel * 2 + IdeDevice] = TRUE;
IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice] = FALSE;
if (!EFI_ERROR (Status)) {
//
// Set Device Path
//
ZeroMem (&NewNode, sizeof (NewNode));
NewNode.DevPath.Type = MESSAGING_DEVICE_PATH;
NewNode.DevPath.SubType = MSG_ATAPI_DP;
SetDevicePathNodeLength (&NewNode.DevPath, sizeof (ATAPI_DEVICE_PATH));
NewNode.Atapi.PrimarySecondary = (UINT8) IdeBlkIoDevicePtr->Channel;
NewNode.Atapi.SlaveMaster = (UINT8) IdeBlkIoDevicePtr->Device;
NewNode.Atapi.Lun = IdeBlkIoDevicePtr->Lun;
IdeBlkIoDevicePtr->DevicePath = AppendDevicePathNode (
ParentDevicePath,
&NewNode.DevPath
);
if (IdeBlkIoDevicePtr->DevicePath == NULL) {
ReleaseIdeResources (IdeBlkIoDevicePtr);
continue;
}
//
// Submit identify data to IDE controller init driver
//
CopyMem (&IdentifyData, IdeBlkIoDevicePtr->pIdData, sizeof (IdentifyData));
// IdentifyData = *IdeBlkIoDevicePtr->pIdData;
IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = TRUE;
IdeInit->SubmitData (IdeInit, IdeChannel, IdeDevice, &IdentifyData);
} else {
//
// Device detection failed
//
IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
IdeInit->SubmitData (IdeInit, IdeChannel, IdeDevice, NULL);
ReleaseIdeResources (IdeBlkIoDevicePtr);
IdeBlkIoDevicePtr = NULL;
}
//
// end of 1st inner loop ---
//
}
//
// end of 1st outer loop =========
//
}
//
// = 2nd outer loop == Primary/Secondary =================
//
for (IdeChannel = BeginningIdeChannel; IdeChannel <= EndIdeChannel; IdeChannel++) {
//
// -- 2nd inner loop --- Master/Slave --------
//
for (IdeDevice = BeginningIdeDevice; IdeDevice <= EndIdeDevice; IdeDevice++) {
if (IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice]) {
continue;
}
if (!IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice]) {
continue;
}
Status = IdeInit->CalculateMode (
IdeInit,
IdeChannel,
IdeDevice,
&SupportedModes
);
if (EFI_ERROR (Status)) {
DEBUG ((EFI_D_ERROR, "[bStStp20S=%x]", Status));
continue;
}
IdeBlkIoDevicePtr = IdeBlkIoDevice[IdeChannel][IdeDevice];
//
// Set best supported PIO mode on this IDE device
//
if (SupportedModes->PioMode.Mode <= ATA_PIO_MODE_2) {
TransferMode.ModeCategory = ATA_MODE_CATEGORY_DEFAULT_PIO;
} else {
TransferMode.ModeCategory = ATA_MODE_CATEGORY_FLOW_PIO;
}
TransferMode.ModeNumber = (UINT8) (SupportedModes->PioMode.Mode);
if (SupportedModes->ExtModeCount == 0){
Status = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode);
if (EFI_ERROR (Status)) {
IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
ReleaseIdeResources (IdeBlkIoDevicePtr);
IdeBlkIoDevicePtr = NULL;
continue;
}
}
//
// Set supported DMA mode on this IDE device. Note that UDMA & MDMA cann't
// be set together. Only one DMA mode can be set to a device. If setting
// DMA mode operation fails, we can continue moving on because we only use
// PIO mode at boot time. DMA modes are used by certain kind of OS booting
//
if (SupportedModes->UdmaMode.Valid) {
TransferMode.ModeCategory = ATA_MODE_CATEGORY_UDMA;
TransferMode.ModeNumber = (UINT8) (SupportedModes->UdmaMode.Mode);
Status = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode);
if (EFI_ERROR (Status)) {
IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
ReleaseIdeResources (IdeBlkIoDevicePtr);
IdeBlkIoDevicePtr = NULL;
continue;
}
EnableInterrupt (IdeBlkIoDevicePtr);
} else if (SupportedModes->MultiWordDmaMode.Valid) {
TransferMode.ModeCategory = ATA_MODE_CATEGORY_MDMA;
TransferMode.ModeNumber = (UINT8) SupportedModes->MultiWordDmaMode.Mode;
Status = SetDeviceTransferMode (IdeBlkIoDevicePtr, &TransferMode);
if (EFI_ERROR (Status)) {
IdeBusDriverPrivateData->DeviceFound[IdeChannel * 2 + IdeDevice] = FALSE;
ReleaseIdeResources (IdeBlkIoDevicePtr);
IdeBlkIoDevicePtr = NULL;
continue;
}
EnableInterrupt (IdeBlkIoDevicePtr);
}
//
// Init driver parameters
//
DriveParameters.Sector = (UINT8) IdeBlkIoDevicePtr->pIdData->AtaData.sectors_per_track;
DriveParameters.Heads = (UINT8) (IdeBlkIoDevicePtr->pIdData->AtaData.heads - 1);
DriveParameters.MultipleSector = (UINT8) IdeBlkIoDevicePtr->pIdData->AtaData.multi_sector_cmd_max_sct_cnt;
//
// Set Parameters for the device:
// 1) Init
// 2) Establish the block count for READ/WRITE MULTIPLE (EXT) command
//
if ((IdeBlkIoDevicePtr->Type == IdeHardDisk) || (IdeBlkIoDevicePtr->Type == Ide48bitAddressingHardDisk)) {
Status = SetDriveParameters (IdeBlkIoDevicePtr, &DriveParameters);
}
//
// Record PIO mode used in private data
//
IdeBlkIoDevicePtr->PioMode = SupportedModes->PioMode.Mode;
//
// Set IDE controller Timing Blocks in the PCI Configuration Space
//
IdeInit->SetTiming (IdeInit, IdeChannel, IdeDevice, SupportedModes);
//
// Add Component Name for the IDE/ATAPI device that was discovered.
//
IdeBlkIoDevicePtr->ControllerNameTable = NULL;
ADD_NAME (IdeBlkIoDevicePtr);
Status = gBS->InstallMultipleProtocolInterfaces (
&IdeBlkIoDevicePtr->Handle,
&gEfiDevicePathProtocolGuid,
IdeBlkIoDevicePtr->DevicePath,
&gEfiBlockIoProtocolGuid,
&IdeBlkIoDevicePtr->BlkIo,
&gEfiDiskInfoProtocolGuid,
&IdeBlkIoDevicePtr->DiskInfo,
NULL
);
if (EFI_ERROR (Status)) {
ReleaseIdeResources (IdeBlkIoDevicePtr);
}
gBS->OpenProtocol (
Controller,
&gEfiPciIoProtocolGuid,
(VOID **) &PciIo,
This->DriverBindingHandle,
IdeBlkIoDevicePtr->Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
IdeBusDriverPrivateData->DeviceProcessed[IdeChannel * 2 + IdeDevice] = TRUE;
//
// Report status code: device eanbled!
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_ENABLE),
IdeBlkIoDevicePtr->DevicePath
);
//
// Create event to clear pending IDE interrupt
//
Status = gBS->CreateEvent (
EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,
EFI_TPL_NOTIFY,
ClearInterrupt,
IdeBlkIoDevicePtr,
&Event
);
//
// end of 2nd inner loop ----
//
}
//
// end of 2nd outer loop ==========
//
}
//
// All configurations done! Notify IdeController to do post initialization
// work such as saving IDE controller PCI settings for S3 resume
//
IdeInit->NotifyPhase (IdeInit, EfiIdeBusPhaseMaximum, 0);
if (SupportedModes != NULL) {
gBS->FreePool (SupportedModes);
}
PERF_START (0, "Finish IDE detection", "IDE", 1);
PERF_END (0, "Finish IDE detection", "IDE", 0);
return EFI_SUCCESS;
ErrorExit:
//
// Report error code: controller error
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
(EFI_IO_BUS_ATA_ATAPI | EFI_IOB_EC_CONTROLLER_ERROR),
ParentDevicePath
);
gBS->CloseProtocol (
Controller,
&gEfiIdeControllerInitProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->UninstallMultipleProtocolInterfaces (
Controller,
&gEfiCallerIdGuid,
IdeBusDriverPrivateData,
NULL
);
if (IdeBusDriverPrivateData != NULL) {
gBS->FreePool (IdeBusDriverPrivateData);
}
if (SupportedModes != NULL) {
gBS->FreePool (SupportedModes);
}
gBS->CloseProtocol (
Controller,
&gEfiPciIoProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
return Status;
}
//
// ***********************************************************************************
// IDEBusDriverBindingStop
// ***********************************************************************************
//
/**
Stop this driver on Controller Handle.
@param This Protocol instance pointer.
@param DeviceHandle Handle of device to stop driver on
@param NumberOfChildren Not used
@param ChildHandleBuffer Not used
@retval EFI_SUCCESS This driver is removed DeviceHandle
@retval other This driver was not removed from this device
**/
EFI_STATUS
EFIAPI
IDEBusDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
// TODO: Controller - add argument and description to function comment
// TODO: EFI_DEVICE_ERROR - add return value to function comment
{
EFI_STATUS Status;
EFI_PCI_IO_PROTOCOL *PciIo;
BOOLEAN AllChildrenStopped;
UINTN Index;
IDE_BUS_DRIVER_PRIVATE_DATA *IdeBusDriverPrivateData;
IdeBusDriverPrivateData = NULL;
if (NumberOfChildren == 0) {
Status = gBS->OpenProtocol (
Controller,
&gEfiPciIoProtocolGuid,
(VOID **) &PciIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (!EFI_ERROR (Status)) {
PciIo->Attributes (
PciIo,
EfiPciIoAttributeOperationDisable,
EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO | EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO | EFI_PCI_DEVICE_ENABLE,
NULL
);
}
gBS->OpenProtocol (
Controller,
&gEfiCallerIdGuid,
(VOID **) &IdeBusDriverPrivateData,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
gBS->UninstallMultipleProtocolInterfaces (
Controller,
&gEfiCallerIdGuid,
IdeBusDriverPrivateData,
NULL
);
if (IdeBusDriverPrivateData != NULL) {
gBS->FreePool (IdeBusDriverPrivateData);
}
//
// Close the bus driver
//
gBS->CloseProtocol (
Controller,
&gEfiIdeControllerInitProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiPciIoProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
return EFI_SUCCESS;
}
AllChildrenStopped = TRUE;
for (Index = 0; Index < NumberOfChildren; Index++) {
Status = DeRegisterIdeDevice (This, Controller, ChildHandleBuffer[Index]);
if (EFI_ERROR (Status)) {
AllChildrenStopped = FALSE;
}
}
if (!AllChildrenStopped) {
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
//
// ***********************************************************************************
// DeRegisterIdeDevice
// ***********************************************************************************
//
/**
Deregister an IDE device and free resources
@param This Protocol instance pointer.
@param Controller Ide device handle
@param Handle Handle of device to deregister driver on
@return EFI_STATUS
**/
EFI_STATUS
DeRegisterIdeDevice (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_HANDLE Handle
)
// TODO: EFI_SUCCESS - add return value to function comment
{
EFI_STATUS Status;
EFI_BLOCK_IO_PROTOCOL *BlkIo;
IDE_BLK_IO_DEV *IdeBlkIoDevice;
EFI_PCI_IO_PROTOCOL *PciIo;
UINTN Index;
Status = gBS->OpenProtocol (
Handle,
&gEfiBlockIoProtocolGuid,
(VOID **) &BlkIo,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return Status;
}
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (BlkIo);
//
// Report Status code: Device disabled
//
REPORT_STATUS_CODE_WITH_DEVICE_PATH (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_P_PC_DISABLE),
IdeBlkIoDevice->DevicePath
);
//
// Close the child handle
//
Status = gBS->CloseProtocol (
Controller,
&gEfiPciIoProtocolGuid,
This->DriverBindingHandle,
Handle
);
Status = gBS->UninstallMultipleProtocolInterfaces (
Handle,
&gEfiDevicePathProtocolGuid,
IdeBlkIoDevice->DevicePath,
&gEfiBlockIoProtocolGuid,
&IdeBlkIoDevice->BlkIo,
&gEfiDiskInfoProtocolGuid,
&IdeBlkIoDevice->DiskInfo,
NULL
);
if (EFI_ERROR (Status)) {
gBS->OpenProtocol (
Controller,
&gEfiPciIoProtocolGuid,
(VOID **) &PciIo,
This->DriverBindingHandle,
Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
return Status;
}
//
// Release allocated resources
//
Index = IdeBlkIoDevice->Channel * 2 + IdeBlkIoDevice->Device;
IdeBlkIoDevice->IdeBusDriverPrivateData->HaveScannedDevice[Index] = FALSE;
ReleaseIdeResources (IdeBlkIoDevice);
return EFI_SUCCESS;
}
//
// ***********************************************************************************
// IDEBlkIoReset
// ***********************************************************************************
//
/**
TODO: This - add argument and description to function comment
TODO: ExtendedVerification - add argument and description to function comment
TODO: EFI_DEVICE_ERROR - add return value to function comment
**/
EFI_STATUS
EFIAPI
IDEBlkIoReset (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
EFI_STATUS Status;
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
//
// Requery IDE IO resources in case of the switch of native and legacy modes
//
ReassignIdeResources (IdeBlkIoDevice);
//
// for ATA device, using ATA reset method
//
if (IdeBlkIoDevice->Type == IdeHardDisk) {
return AtaSoftReset (IdeBlkIoDevice);
}
if (IdeBlkIoDevice->Type == IdeUnknown) {
return EFI_DEVICE_ERROR;
}
//
// for ATAPI device, using ATAPI reset method
//
Status = AtapiSoftReset (IdeBlkIoDevice);
if (ExtendedVerification) {
Status = AtaSoftReset (IdeBlkIoDevice);
}
return Status;
}
/**
Read data from block io device
@param This Protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to read data
@param BufferSize The size of data to be read
@param Buffer Caller supplied buffer to save data
@return read data status
**/
EFI_STATUS
EFIAPI
IDEBlkIoReadBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA LBA,
IN UINTN BufferSize,
OUT VOID *Buffer
)
// TODO: EFI_DEVICE_ERROR - add return value to function comment
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
//
// Requery IDE IO resources in case of the switch of native and legacy modes
//
ReassignIdeResources (IdeBlkIoDevice);
//
// For ATA compatible device, use ATA read block's mechanism
//
if (IdeBlkIoDevice->Type == IdeHardDisk ||
IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
return AtaBlkIoReadBlocks (
IdeBlkIoDevice,
MediaId,
LBA,
BufferSize,
Buffer
);
}
if (IdeBlkIoDevice->Type == IdeUnknown) {
return EFI_DEVICE_ERROR;
}
//
// for ATAPI device, using ATAPI read block's mechanism
//
return AtapiBlkIoReadBlocks (
IdeBlkIoDevice,
MediaId,
LBA,
BufferSize,
Buffer
);
}
/**
Write data to block io device
@param This Protocol instance pointer.
@param MediaId The media ID of the device
@param LBA Starting LBA address to write data
@param BufferSize The size of data to be written
@param Buffer Caller supplied buffer to save data
@return write data status
**/
EFI_STATUS
EFIAPI
IDEBlkIoWriteBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA LBA,
IN UINTN BufferSize,
IN VOID *Buffer
)
// TODO: EFI_DEVICE_ERROR - add return value to function comment
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_THIS (This);
//
// Requery IDE IO resources in case of the switch of native and legacy modes
//
ReassignIdeResources (IdeBlkIoDevice);
//
// for ATA device, using ATA write block's mechanism
//
if (IdeBlkIoDevice->Type == IdeHardDisk ||
IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
return AtaBlkIoWriteBlocks (
IdeBlkIoDevice,
MediaId,
LBA,
BufferSize,
Buffer
);
}
if (IdeBlkIoDevice->Type == IdeUnknown) {
return EFI_DEVICE_ERROR;
}
//
// for ATAPI device, using ATAPI write block's mechanism
//
return AtapiBlkIoWriteBlocks (
IdeBlkIoDevice,
MediaId,
LBA,
BufferSize,
Buffer
);
}
//
// ***********************************************************************************
// IDEBlkIoFlushBlocks
// ***********************************************************************************
//
/**
TODO: This - add argument and description to function comment
TODO: EFI_SUCCESS - add return value to function comment
**/
EFI_STATUS
EFIAPI
IDEBlkIoFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
)
{
//
// return directly
//
return EFI_SUCCESS;
}
/**
Return the results of the Inquiry command to a drive in InquiryData.
Data format of Inquiry data is defined by the Interface GUID.
@param This Protocol instance pointer.
@param InquiryData Results of Inquiry command to device
@param InquiryDataSize Size of InquiryData in bytes.
@retval EFI_SUCCESS InquiryData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading InquiryData from device
@retval EFI_BUFFER_TOO_SMALL IntquiryDataSize not big enough
**/
EFI_STATUS
EFIAPI
IDEDiskInfoInquiry (
IN EFI_DISK_INFO_PROTOCOL *This,
IN OUT VOID *InquiryData,
IN OUT UINT32 *InquiryDataSize
)
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This);
if (*InquiryDataSize < sizeof (INQUIRY_DATA)) {
*InquiryDataSize = sizeof (INQUIRY_DATA);
return EFI_BUFFER_TOO_SMALL;
}
if (IdeBlkIoDevice->pInquiryData == NULL) {
return EFI_NOT_FOUND;
}
gBS->CopyMem (InquiryData, IdeBlkIoDevice->pInquiryData, sizeof (INQUIRY_DATA));
*InquiryDataSize = sizeof (INQUIRY_DATA);
return EFI_SUCCESS;
}
/**
Return the results of the Identify command to a drive in IdentifyData.
Data format of Identify data is defined by the Interface GUID.
@param This Protocol instance pointer.
@param IdentifyData Results of Identify command to device
@param IdentifyDataSize Size of IdentifyData in bytes.
@retval EFI_SUCCESS IdentifyData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading IdentifyData from device
@retval EFI_BUFFER_TOO_SMALL IdentifyDataSize not big enough
**/
EFI_STATUS
EFIAPI
IDEDiskInfoIdentify (
IN EFI_DISK_INFO_PROTOCOL *This,
IN OUT VOID *IdentifyData,
IN OUT UINT32 *IdentifyDataSize
)
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This);
if (*IdentifyDataSize < sizeof (EFI_IDENTIFY_DATA)) {
*IdentifyDataSize = sizeof (EFI_IDENTIFY_DATA);
return EFI_BUFFER_TOO_SMALL;
}
if (IdeBlkIoDevice->pIdData == NULL) {
return EFI_NOT_FOUND;
}
gBS->CopyMem (IdentifyData, IdeBlkIoDevice->pIdData, sizeof (EFI_IDENTIFY_DATA));
*IdentifyDataSize = sizeof (EFI_IDENTIFY_DATA);
return EFI_SUCCESS;
}
/**
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
@param This Protocol instance pointer.
@param SenseData Results of Request Sense command to device
@param SenseDataSize Size of SenseData in bytes.
@param SenseDataNumber Type of SenseData
@retval EFI_SUCCESS InquiryData valid
@retval EFI_NOT_FOUND Device does not support this data class
@retval EFI_DEVICE_ERROR Error reading InquiryData from device
@retval EFI_BUFFER_TOO_SMALL SenseDataSize not big enough
**/
EFI_STATUS
EFIAPI
IDEDiskInfoSenseData (
IN EFI_DISK_INFO_PROTOCOL *This,
IN OUT VOID *SenseData,
IN OUT UINT32 *SenseDataSize,
OUT UINT8 *SenseDataNumber
)
{
return EFI_NOT_FOUND;
}
/**
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
@param This Protocol instance pointer.
@param IdeChannel Primary or Secondary
@param IdeDevice Master or Slave
@retval EFI_SUCCESS IdeChannel and IdeDevice are valid
@retval EFI_UNSUPPORTED This is not an IDE device
**/
EFI_STATUS
EFIAPI
IDEDiskInfoWhichIde (
IN EFI_DISK_INFO_PROTOCOL *This,
OUT UINT32 *IdeChannel,
OUT UINT32 *IdeDevice
)
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This);
*IdeChannel = IdeBlkIoDevice->Channel;
*IdeDevice = IdeBlkIoDevice->Device;
return EFI_SUCCESS;
}
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