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

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Initial import. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
2006-04-22 00:54:32 +02:00
/*++
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.
Module Name:
idebus.c
Abstract:
Revision History
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
// ***********************************************************************************
//
EFI_STATUS
EFIAPI
IDEBusDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Register Driver Binding protocol for this driver.
Arguments:
This -- A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
ControllerHandle -- The handle of the controller to test.
RemainingDevicePath -- A pointer to the remaining portion of a device path.
Returns:
EFI_SUCCESS - Driver loaded.
other - Driver not loaded.
--*/
// 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
// ***********************************************************************************
//
EFI_STATUS
EFIAPI
IDEBusDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Start this driver on Controller by detecting all disks and installing
BlockIo protocol on them.
Arguments:
This - Protocol instance pointer.
Controller - Handle of device to bind driver to.
RemainingDevicePath - Not used, always produce all possible children.
Returns:
EFI_SUCCESS - This driver is added to ControllerHandle.
EFI_ALREADY_STARTED - This driver is already running on ControllerHandle.
other - This driver does not support this device.
--*/
{
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;
//
// 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
);
//
// 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
// ***********************************************************************************
//
EFI_STATUS
EFIAPI
IDEBusDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
Stop this driver on Controller Handle.
Arguments:
This - Protocol instance pointer.
DeviceHandle - Handle of device to stop driver on
NumberOfChildren - Not used
ChildHandleBuffer - Not used
Returns:
EFI_SUCCESS - This driver is removed DeviceHandle
other - This driver was not removed from this device
--*/
// 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
// ***********************************************************************************
//
EFI_STATUS
DeRegisterIdeDevice (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_HANDLE Handle
)
/*++
Routine Description:
Deregister an IDE device and free resources
Arguments:
This - Protocol instance pointer.
Controller - Ide device handle
Handle - Handle of device to deregister driver on
Returns:
EFI_STATUS
--*/
// 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
// ***********************************************************************************
//
EFI_STATUS
EFIAPI
IDEBlkIoReset (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
// 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
{
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;
}
EFI_STATUS
EFIAPI
IDEBlkIoReadBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA LBA,
IN UINTN BufferSize,
OUT VOID *Buffer
)
/*++
Routine Description:
Read data from block io device
Arguments:
This - Protocol instance pointer.
MediaId - The media ID of the device
LBA - Starting LBA address to read data
BufferSize - The size of data to be read
Buffer - Caller supplied buffer to save data
Returns:
read data status
--*/
// 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
);
}
EFI_STATUS
EFIAPI
IDEBlkIoWriteBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN UINT32 MediaId,
IN EFI_LBA LBA,
IN UINTN BufferSize,
IN VOID *Buffer
)
/*++
Routine Description:
Write data to block io device
Arguments:
This - Protocol instance pointer.
MediaId - The media ID of the device
LBA - Starting LBA address to write data
BufferSize - The size of data to be written
Buffer - Caller supplied buffer to save data
Returns:
write data status
--*/
// 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
// ***********************************************************************************
//
EFI_STATUS
EFIAPI
IDEBlkIoFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
)
/*++
Routine Description:
Arguments:
Returns:
None
--*/
// TODO: This - add argument and description to function comment
// TODO: EFI_SUCCESS - add return value to function comment
{
//
// return directly
//
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
IDEDiskInfoInquiry (
IN EFI_DISK_INFO_PROTOCOL *This,
IN OUT VOID *InquiryData,
IN OUT UINT32 *InquiryDataSize
)
/*++
Routine Description:
Return the results of the Inquiry command to a drive in InquiryData.
Data format of Inquiry data is defined by the Interface GUID.
Arguments:
This - Protocol instance pointer.
InquiryData - Results of Inquiry command to device
InquiryDataSize - Size of InquiryData in bytes.
Returns:
EFI_SUCCESS - InquiryData valid
EFI_NOT_FOUND - Device does not support this data class
EFI_DEVICE_ERROR - Error reading InquiryData from device
EFI_BUFFER_TOO_SMALL - IntquiryDataSize not big enough
--*/
{
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;
}
EFI_STATUS
EFIAPI
IDEDiskInfoIdentify (
IN EFI_DISK_INFO_PROTOCOL *This,
IN OUT VOID *IdentifyData,
IN OUT UINT32 *IdentifyDataSize
)
/*++
Routine Description:
Return the results of the Identify command to a drive in IdentifyData.
Data format of Identify data is defined by the Interface GUID.
Arguments:
This - Protocol instance pointer.
IdentifyData - Results of Identify command to device
IdentifyDataSize - Size of IdentifyData in bytes.
Returns:
EFI_SUCCESS - IdentifyData valid
EFI_NOT_FOUND - Device does not support this data class
EFI_DEVICE_ERROR - Error reading IdentifyData from device
EFI_BUFFER_TOO_SMALL - IdentifyDataSize not big enough
--*/
{
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;
}
EFI_STATUS
EFIAPI
IDEDiskInfoSenseData (
IN EFI_DISK_INFO_PROTOCOL *This,
IN OUT VOID *SenseData,
IN OUT UINT32 *SenseDataSize,
OUT UINT8 *SenseDataNumber
)
/*++
Routine Description:
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
Arguments:
This - Protocol instance pointer.
SenseData - Results of Request Sense command to device
SenseDataSize - Size of SenseData in bytes.
SenseDataNumber - Type of SenseData
Returns:
EFI_SUCCESS - InquiryData valid
EFI_NOT_FOUND - Device does not support this data class
EFI_DEVICE_ERROR - Error reading InquiryData from device
EFI_BUFFER_TOO_SMALL - SenseDataSize not big enough
--*/
{
return EFI_NOT_FOUND;
}
EFI_STATUS
EFIAPI
IDEDiskInfoWhichIde (
IN EFI_DISK_INFO_PROTOCOL *This,
OUT UINT32 *IdeChannel,
OUT UINT32 *IdeDevice
)
/*++
Routine Description:
Return the results of the Request Sense command to a drive in SenseData.
Data format of Sense data is defined by the Interface GUID.
Arguments:
This - Protocol instance pointer.
IdeChannel - Primary or Secondary
IdeDevice - Master or Slave
Returns:
EFI_SUCCESS - IdeChannel and IdeDevice are valid
EFI_UNSUPPORTED - This is not an IDE device
--*/
{
IDE_BLK_IO_DEV *IdeBlkIoDevice;
IdeBlkIoDevice = IDE_BLOCK_IO_DEV_FROM_DISK_INFO_THIS (This);
*IdeChannel = IdeBlkIoDevice->Channel;
*IdeDevice = IdeBlkIoDevice->Device;
return EFI_SUCCESS;
}