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Porting R8's PI-enabled ScsiBus driver

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2927 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2 2007-07-02 02:40:39 +00:00
parent 6d2f1f24c3
commit 70c94b3b6d
4 changed files with 800 additions and 207 deletions
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1
MdeModulePkg/Bus/Scsi/ScsiBusDxe/ComponentName.c
View File

@ -26,6 +26,7 @@ Abstract:
// The protocols, PPI and GUID defintions for this module
//
#include <Protocol/ScsiPassThru.h>
#include <Protocol/ScsiPassThruExt.h>
#include <Protocol/ScsiIo.h>
#include <Protocol/ComponentName.h>
#include <Protocol/DriverBinding.h>

691
MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c
View File

@ -28,6 +28,7 @@ Revision History
// The protocols, PPI and GUID defintions for this module
//
#include <Protocol/ScsiPassThru.h>
#include <Protocol/ScsiPassThruExt.h>
#include <Protocol/ScsiIo.h>
#include <Protocol/ComponentName.h>
#include <Protocol/DriverBinding.h>
@ -39,6 +40,7 @@ Revision History
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/ScsiLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DevicePathLib.h>
@ -54,6 +56,43 @@ EFI_DRIVER_BINDING_PROTOCOL gSCSIBusDriverBinding = {
NULL
};
//
// The ScsiBusProtocol is just used to locate ScsiBusDev
// structure in the SCSIBusDriverBindingStop(). Then we can
// Close all opened protocols and release this structure.
//
STATIC EFI_GUID mScsiBusProtocolGuid = EFI_SCSI_BUS_PROTOCOL_GUID;
STATIC VOID *WorkingBuffer;
STATIC
EFI_STATUS
EFIAPI
ScsiioToPassThruPacket (
IN EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,
IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket
)
;
STATIC
EFI_STATUS
EFIAPI
PassThruToScsiioPacket (
IN EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket,
IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet
)
;
STATIC
VOID
EFIAPI
NotifyFunction (
EFI_EVENT Event,
VOID *Context
)
;
/**
The user Entry Point for module ScsiBus. The user code starts with this function.
@ -102,46 +141,76 @@ SCSIBusDriverBindingSupported (
Routine Description:
Test to see if this driver supports ControllerHandle. Any ControllerHandle
that has ExtScsiPassThruProtocol/ScsiPassThruProtocol installed will be supported.
Arguments:
This - Protocol instance pointer.
Controller - Handle of device to test
RemainingDevicePath - Not used
Returns:
EFI_SUCCESS - This driver supports this device.
EFI_UNSUPPORTED - This driver does not support this device.
--*/
// TODO: This - add argument and description to function comment
// TODO: Controller - add argument and description to function comment
// TODO: RemainingDevicePath - add argument and description to function comment
// TODO: EFI_UNSUPPORTED - add return value to function comment
// TODO: EFI_UNSUPPORTED - add return value to function comment
// TODO: EFI_SUCCESS - add return value to function comment
{
EFI_STATUS Status;
EFI_SCSI_PASS_THRU_PROTOCOL *PassThru;
EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtPassThru;
//
// If RemainingDevicePath is not NULL, it should verify that the first device
// path node in RemainingDevicePath is an ATAPI Device path node.
//
if (RemainingDevicePath != NULL) {
if ((RemainingDevicePath->Type != MESSAGING_DEVICE_PATH) ||
(RemainingDevicePath->SubType != MSG_ATAPI_DP) ||
(DevicePathNodeLength (RemainingDevicePath) != sizeof(ATAPI_DEVICE_PATH))) {
return EFI_UNSUPPORTED;
}
}
//
// check for the existence of SCSI Pass Thru Protocol
// Check for the existence of Extended SCSI Pass Thru Protocol and SCSI Pass Thru Protocol
//
Status = gBS->OpenProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
NULL,
&gEfiExtScsiPassThruProtocolGuid,
(VOID **)&ExtPassThru,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_TEST_PROTOCOL
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {
return EFI_UNSUPPORTED;
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
if (EFI_ERROR (Status)) {
Status = gBS->OpenProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
(VOID **)&PassThru,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (Status == EFI_ALREADY_STARTED) {
return EFI_SUCCESS;
}
if (EFI_ERROR (Status)) {
return Status;
}
gBS->CloseProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
This->DriverBindingHandle,
Controller
);
return EFI_SUCCESS;
}
gBS->CloseProtocol (
Controller,
&gEfiExtScsiPassThruProtocolGuid,
This->DriverBindingHandle,
Controller
);
return EFI_SUCCESS;
}
@ -155,10 +224,17 @@ SCSIBusDriverBindingStart (
/*++
Routine Description:
Starting the SCSI Bus Driver
Arguments:
This - Protocol instance pointer.
Controller - Handle of device to test
RemainingDevicePath - Not used
Returns:
EFI_SUCCESS - This driver supports this device.
EFI_UNSUPPORTED - This driver does not support this device.
EFI_DEVICE_ERROR - This driver cannot be started due to device Error
--*/
// TODO: This - add argument and description to function comment
@ -166,35 +242,63 @@ SCSIBusDriverBindingStart (
// TODO: RemainingDevicePath - add argument and description to function comment
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;
UINT32 StartPun;
UINT64 StartLun;
UINT32 Pun;
UINT64 Lun;
BOOLEAN ScanOtherPuns;
SCSI_BUS_DEVICE *ScsiBusDev;
BOOLEAN FromFirstTarget;
SCSI_TARGET_ID *ScsiTargetId;
UINT8 *TargetId;
TargetId = NULL;
ScanOtherPuns = TRUE;
FromFirstTarget = FALSE;
//
// Allocate SCSI_BUS_DEVICE structure
//
ScsiBusDev = NULL;
ScsiBusDev = AllocateZeroPool (sizeof (SCSI_BUS_DEVICE));
if (ScsiBusDev == NULL) {
return EFI_OUT_OF_RESOURCES;
}
ScsiTargetId = NULL;
ScsiTargetId = AllocateZeroPool (sizeof (SCSI_TARGET_ID));
if (ScsiTargetId == NULL) {
return EFI_OUT_OF_RESOURCES;
}
TargetId = &ScsiTargetId->ScsiId.ExtScsi[0];
StartPun = 0;
StartLun = 0;
Status = gBS->OpenProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
(VOID **) &ParentDevicePath,
(VOID **) &(ScsiBusDev->DevicePath),
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
gBS->FreePool (ScsiBusDev);
return Status;
}
//
// Consume SCSI Pass Thru protocol.
// First consume Extended SCSI Pass Thru protocol, if fail, then consume
// SCSI Pass Thru protocol
//
Status = gBS->OpenProtocol (
Controller,
&gEfiExtScsiPassThruProtocolGuid,
(VOID **) &(ScsiBusDev->ExtScsiInterface),
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
);
if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
Status = gBS->OpenProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
(VOID **) &ScsiPassThru,
(VOID **) &(ScsiBusDev->ScsiInterface),
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_BY_DRIVER
@ -206,24 +310,76 @@ SCSIBusDriverBindingStart (
This->DriverBindingHandle,
Controller
);
gBS->FreePool (ScsiBusDev);
return Status;
}
DEBUG ((EFI_D_INFO, "Open Scsi Pass Thrugh Protocol\n"));
ScsiBusDev->ExtScsiSupport = FALSE;
} else {
DEBUG ((EFI_D_INFO, "Open Extended Scsi Pass Thrugh Protocol\n"));
ScsiBusDev->ExtScsiSupport = TRUE;
}
ScsiBusDev->Signature = SCSI_BUS_DEVICE_SIGNATURE;
//
// Attach EFI_SCSI_BUS_PROTOCOL to controller handle
//
Status = gBS->InstallProtocolInterface (
&Controller,
&mScsiBusProtocolGuid,
EFI_NATIVE_INTERFACE,
&ScsiBusDev->BusIdentify
);
if (EFI_ERROR (Status)) {
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
if (ScsiBusDev->ExtScsiSupport) {
gBS->CloseProtocol (
Controller,
&gEfiExtScsiPassThruProtocolGuid,
This->DriverBindingHandle,
Controller
);
} else {
gBS->CloseProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
gBS->FreePool (ScsiBusDev);
return Status;
}
if (RemainingDevicePath == NULL) {
StartPun = 0xFFFFFFFF;
StartLun = 0;
SetMem (ScsiTargetId, TARGET_MAX_BYTES,0xFF);
Lun = 0;
FromFirstTarget = TRUE;
} else {
ScsiPassThru->GetTargetLun (ScsiPassThru, RemainingDevicePath, &StartPun, &StartLun);
if (ScsiBusDev->ExtScsiSupport) {
ScsiBusDev->ExtScsiInterface->GetTargetLun (ScsiBusDev->ExtScsiInterface, RemainingDevicePath, &TargetId, &Lun);
} else {
ScsiBusDev->ScsiInterface->GetTargetLun (ScsiBusDev->ScsiInterface, RemainingDevicePath, &ScsiTargetId->ScsiId.Scsi, &Lun);
}
}
for (Pun = StartPun, ScanOtherPuns = TRUE; ScanOtherPuns;) {
if (StartPun == 0xFFFFFFFF) {
while(ScanOtherPuns) {
if (FromFirstTarget) {
//
// Remaining Device Path is NULL, scan all the possible Puns in the
// SCSI Channel.
//
Status = ScsiPassThru->GetNextDevice (ScsiPassThru, &Pun, &Lun);
if (ScsiBusDev->ExtScsiSupport) {
Status = ScsiBusDev->ExtScsiInterface->GetNextTargetLun (ScsiBusDev->ExtScsiInterface, &TargetId, &Lun);
} else {
Status = ScsiBusDev->ScsiInterface->GetNextDevice (ScsiBusDev->ScsiInterface, &ScsiTargetId->ScsiId.Scsi, &Lun);
}
if (EFI_ERROR (Status)) {
//
// no legal Pun and Lun found any more
@ -231,28 +387,26 @@ SCSIBusDriverBindingStart (
break;
}
} else {
//
// Remaining Device Path is not NULL, only scan the specified Pun.
//
Pun = StartPun;
Lun = StartLun;
ScanOtherPuns = FALSE;
}
//
// Avoid creating handle for the host adapter.
//
if (Pun == ScsiPassThru->Mode->AdapterId) {
if (ScsiBusDev->ExtScsiSupport) {
if ((ScsiTargetId->ScsiId.Scsi) == ScsiBusDev->ExtScsiInterface->Mode->AdapterId) {
continue;
}
} else {
if ((ScsiTargetId->ScsiId.Scsi) == ScsiBusDev->ScsiInterface->Mode->AdapterId) {
continue;
}
}
//
// Scan for the scsi device, if it attaches to the scsi bus,
// then create handle and install scsi i/o protocol.
//
Status = ScsiScanCreateDevice (This, Controller, Pun, Lun, ScsiPassThru, ParentDevicePath);
Status = ScsiScanCreateDevice (This, Controller, ScsiTargetId, Lun, ScsiBusDev);
}
return Status;
}
@ -286,25 +440,64 @@ SCSIBusDriverBindingStop (
UINTN Index;
EFI_SCSI_IO_PROTOCOL *ScsiIo;
SCSI_IO_DEV *ScsiIoDevice;
EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;
VOID *ScsiPassThru;
EFI_SCSI_BUS_PROTOCOL *Scsidentifier;
SCSI_BUS_DEVICE *ScsiBusDev;
if (NumberOfChildren == 0) {
//
// Get the SCSI_BUS_DEVICE
//
Status = gBS->OpenProtocol (
Controller,
&mScsiBusProtocolGuid,
(VOID **) &Scsidentifier,
This->DriverBindingHandle,
Controller,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
ScsiBusDev = SCSI_BUS_CONTROLLER_DEVICE_FROM_THIS (Scsidentifier);
//
// Uninstall SCSI Bus Protocol
//
gBS->UninstallProtocolInterface (
Controller,
&mScsiBusProtocolGuid,
&ScsiBusDev->BusIdentify
);
//
// Close the bus driver
//
if (ScsiBusDev->ExtScsiSupport) {
gBS->CloseProtocol (
Controller,
&gEfiExtScsiPassThruProtocolGuid,
This->DriverBindingHandle,
Controller
);
} else {
gBS->CloseProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
This->DriverBindingHandle,
Controller
);
}
gBS->CloseProtocol (
Controller,
&gEfiDevicePathProtocolGuid,
This->DriverBindingHandle,
Controller
);
gBS->FreePool (ScsiBusDev);
return EFI_SUCCESS;
}
@ -329,12 +522,22 @@ SCSIBusDriverBindingStop (
//
// Close the child handle
//
if (ScsiIoDevice->ExtScsiSupport) {
Status = gBS->CloseProtocol (
Controller,
&gEfiExtScsiPassThruProtocolGuid,
This->DriverBindingHandle,
ChildHandleBuffer[Index]
);
} else {
Status = gBS->CloseProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
This->DriverBindingHandle,
ChildHandleBuffer[Index]
);
}
Status = gBS->UninstallMultipleProtocolInterfaces (
ChildHandleBuffer[Index],
@ -346,14 +549,25 @@ SCSIBusDriverBindingStop (
);
if (EFI_ERROR (Status)) {
AllChildrenStopped = FALSE;
if (ScsiIoDevice->ExtScsiSupport) {
gBS->OpenProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
(VOID **) &ScsiPassThru,
&gEfiExtScsiPassThruProtocolGuid,
&(EFI_EXT_SCSI_PASS_THRU_PROTOCOL*)ScsiPassThru,
This->DriverBindingHandle,
ChildHandleBuffer[Index],
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
} else {
gBS->OpenProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
&(EFI_SCSI_PASS_THRU_PROTOCOL*)ScsiPassThru,
This->DriverBindingHandle,
ChildHandleBuffer[Index],
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
}
} else {
gBS->FreePool (ScsiIoDevice);
}
@ -398,12 +612,11 @@ ScsiGetDeviceType (
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
ScsiGetDeviceLocation (
IN EFI_SCSI_IO_PROTOCOL *This,
OUT UINT32 *Target,
IN OUT UINT8 **Target,
OUT UINT64 *Lun
)
/*++
@ -430,7 +643,8 @@ ScsiGetDeviceLocation (
ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);
*Target = ScsiIoDevice->Pun;
CopyMem (*Target,&ScsiIoDevice->Pun, TARGET_MAX_BYTES);
*Lun = ScsiIoDevice->Lun;
return EFI_SUCCESS;
@ -462,8 +676,11 @@ ScsiResetBus (
ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);
if (ScsiIoDevice->ExtScsiSupport){
return ScsiIoDevice->ExtScsiPassThru->ResetChannel (ScsiIoDevice->ExtScsiPassThru);
} else {
return ScsiIoDevice->ScsiPassThru->ResetChannel (ScsiIoDevice->ScsiPassThru);
}
}
EFI_STATUS
@ -491,14 +708,25 @@ ScsiResetDevice (
--*/
{
SCSI_IO_DEV *ScsiIoDevice;
UINT8 Target[TARGET_MAX_BYTES];
ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);
CopyMem (Target,&ScsiIoDevice->Pun, TARGET_MAX_BYTES);
return ScsiIoDevice->ScsiPassThru->ResetTarget (
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun,
if (ScsiIoDevice->ExtScsiSupport) {
return ScsiIoDevice->ExtScsiPassThru->ResetTargetLun (
ScsiIoDevice->ExtScsiPassThru,
Target,
ScsiIoDevice->Lun
);
} else {
return ScsiIoDevice->ScsiPassThru->ResetTarget (
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun.ScsiId.Scsi,
ScsiIoDevice->Lun
);
}
}
EFI_STATUS
@ -561,56 +789,137 @@ ScsiExecuteSCSICommand (
{
SCSI_IO_DEV *ScsiIoDevice;
EFI_STATUS Status;
UINT8 Target[TARGET_MAX_BYTES];
EFI_EVENT PacketEvent;
EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ExtRequestPacket;
SCSI_EVENT_DATA EventData;
EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *RequestPacket;
PacketEvent = NULL;
if (Packet == NULL) {
return EFI_INVALID_PARAMETER;
}
ScsiIoDevice = SCSI_IO_DEV_FROM_THIS (This);
CopyMem (Target,&ScsiIoDevice->Pun, TARGET_MAX_BYTES);
RequestPacket = (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *) Packet;
if (ScsiIoDevice->ExtScsiSupport) {
ExtRequestPacket = (EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *) Packet;
Status = ScsiIoDevice->ExtScsiPassThru->PassThru (
ScsiIoDevice->ExtScsiPassThru,
Target,
ScsiIoDevice->Lun,
ExtRequestPacket,
Event
);
} else {
Status = gBS->AllocatePool (
EfiBootServicesData,
sizeof(EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET),
(VOID**)&WorkingBuffer
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
//
// Convert package into EFI1.0, EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET.
//
Status = ScsiioToPassThruPacket(Packet, (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)WorkingBuffer);
if (EFI_ERROR(Status)) {
gBS->FreePool(WorkingBuffer);
return Status;
}
if ((ScsiIoDevice->ScsiPassThru->Mode->Attributes & EFI_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO) && (Event != NULL)) {
EventData.Data1 = (VOID*)Packet;
EventData.Data2 = Event;
//
// Create Event
//
Status = gBS->CreateEvent (
EVT_NOTIFY_SIGNAL,
TPL_CALLBACK,
NotifyFunction,
&EventData,
&PacketEvent
);
if (EFI_ERROR(Status)) {
gBS->FreePool(WorkingBuffer);
return Status;
}
Status = ScsiIoDevice->ScsiPassThru->PassThru (
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun,
ScsiIoDevice->Pun.ScsiId.Scsi,
ScsiIoDevice->Lun,
RequestPacket,
WorkingBuffer,
PacketEvent
);
if (EFI_ERROR(Status)) {
gBS->FreePool(WorkingBuffer);
gBS->CloseEvent(PacketEvent);
return Status;
}
} else {
//
// If there's no event or SCSI Device doesn't support NON-BLOCKING, just convert
// EFI1.0 PassThru packet back to UEFI2.0 SCSI IO Packet.
//
Status = ScsiIoDevice->ScsiPassThru->PassThru (
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun.ScsiId.Scsi,
ScsiIoDevice->Lun,
WorkingBuffer,
Event
);
if (EFI_ERROR(Status)) {
gBS->FreePool(WorkingBuffer);
return Status;
}
PassThruToScsiioPacket((EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)WorkingBuffer,Packet);
//
// After converting EFI1.0 PassThru Packet back to UEFI2.0 SCSI IO Packet,
// free WorkingBuffer.
//
gBS->FreePool(WorkingBuffer);
}
}
return Status;
}
EFI_STATUS
EFIAPI
ScsiScanCreateDevice (
EFI_DRIVER_BINDING_PROTOCOL *This,
EFI_HANDLE Controller,
UINT32 Pun,
SCSI_TARGET_ID *TargetId,
UINT64 Lun,
EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru,
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath
SCSI_BUS_DEVICE *ScsiBusDev
)
/*++
Routine Description:
TODO: Add function description
Scan SCSI Bus to discover the device, and attach ScsiIoProtocol to it.
Arguments:
This - TODO: add argument description
Controller - TODO: add argument description
Pun - TODO: add argument description
Lun - TODO: add argument description
ScsiPassThru - TODO: add argument description
ParentDevicePath - TODO: add argument description
This - Protocol instance pointer
Controller - Controller handle
Pun - The Pun of the SCSI device on the SCSI channel.
Lun - The Lun of the SCSI device on the SCSI channel.
ScsiBusDev - The pointer of SCSI_BUS_DEVICE
Returns:
EFI_SUCCESS - TODO: Add description for return value
EFI_OUT_OF_RESOURCES - TODO: Add description for return value
EFI_SUCCESS - TODO: Add description for return value
EFI_SUCCESS - Successfully to discover the device and attach ScsiIoProtocol to it.
EFI_OUT_OF_RESOURCES - Fail to discover the device.
--*/
{
@ -630,27 +939,39 @@ Returns:
ZeroMem (ScsiIoDevice, sizeof (SCSI_IO_DEV));
ScsiIoDevice->Signature = SCSI_IO_DEV_SIGNATURE;
ScsiIoDevice->ScsiPassThru = ScsiPassThru;
ScsiIoDevice->Pun = Pun;
CopyMem(&ScsiIoDevice->Pun, TargetId, TARGET_MAX_BYTES);
ScsiIoDevice->Lun = Lun;
if (ScsiBusDev->ExtScsiSupport) {
ScsiIoDevice->ExtScsiPassThru = ScsiBusDev->ExtScsiInterface;
ScsiIoDevice->ExtScsiSupport = TRUE;
ScsiIoDevice->ScsiIo.IoAlign = ScsiIoDevice->ExtScsiPassThru->Mode->IoAlign;
} else {
ScsiIoDevice->ScsiPassThru = ScsiBusDev->ScsiInterface;
ScsiIoDevice->ExtScsiSupport = FALSE;
ScsiIoDevice->ScsiIo.IoAlign = ScsiIoDevice->ScsiPassThru->Mode->IoAlign;
}
ScsiIoDevice->ScsiIo.GetDeviceType = ScsiGetDeviceType;
// ScsiIoDevice->ScsiIo.GetDeviceLocation = ScsiGetDeviceLocation;
ScsiIoDevice->ScsiIo.GetDeviceLocation = ScsiGetDeviceLocation;
ScsiIoDevice->ScsiIo.ResetBus = ScsiResetBus;
ScsiIoDevice->ScsiIo.ResetDevice = ScsiResetDevice;
ScsiIoDevice->ScsiIo.ExecuteScsiCommand = ScsiExecuteSCSICommand;
if (!DiscoverScsiDevice (ScsiIoDevice)) {
gBS->FreePool (ScsiIoDevice);
return EFI_SUCCESS;
return EFI_OUT_OF_RESOURCES;
}
//
// Set Device Path
//
Status = ScsiIoDevice->ScsiPassThru->BuildDevicePath (
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun,
if (ScsiIoDevice->ExtScsiSupport){
Status = ScsiIoDevice->ExtScsiPassThru->BuildDevicePath (
ScsiIoDevice->ExtScsiPassThru,
&ScsiIoDevice->Pun.ScsiId.ExtScsi[0],
ScsiIoDevice->Lun,
&ScsiDevicePath
);
@ -658,9 +979,21 @@ Returns:
gBS->FreePool (ScsiIoDevice);
return Status;
}
} else {
Status = ScsiIoDevice->ScsiPassThru->BuildDevicePath (
ScsiIoDevice->ScsiPassThru,
ScsiIoDevice->Pun.ScsiId.Scsi,
ScsiIoDevice->Lun,
&ScsiDevicePath
);
if (Status == EFI_OUT_OF_RESOURCES) {
gBS->FreePool (ScsiIoDevice);
return Status;
}
}
ScsiIoDevice->DevicePath = AppendDevicePathNode (
ParentDevicePath,
ScsiBusDev->DevicePath,
ScsiDevicePath
);
//
@ -685,21 +1018,33 @@ Returns:
);
if (EFI_ERROR (Status)) {
gBS->FreePool (ScsiIoDevice);
return EFI_OUT_OF_RESOURCES;
} else {
if (ScsiBusDev->ExtScsiSupport) {
gBS->OpenProtocol (
Controller,
&gEfiExtScsiPassThruProtocolGuid,
(VOID **) &(ScsiBusDev->ExtScsiInterface),
This->DriverBindingHandle,
ScsiIoDevice->Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
} else {
gBS->OpenProtocol (
Controller,
&gEfiScsiPassThruProtocolGuid,
(VOID **) &ScsiPassThru,
(VOID **) &(ScsiBusDev->ScsiInterface),
This->DriverBindingHandle,
ScsiIoDevice->Handle,
EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
);
}
}
return EFI_SUCCESS;
}
BOOLEAN
EFIAPI
DiscoverScsiDevice (
SCSI_IO_DEV *ScsiIoDevice
)
@ -707,25 +1052,26 @@ DiscoverScsiDevice (
Routine Description:
TODO: Add function description
Discovery SCSI Device
Arguments:
ScsiIoDevice - TODO: add argument description
ScsiIoDevice - The pointer of SCSI_IO_DEV
Returns:
TODO: add return values
TRUE - Find SCSI Device and verify it.
FALSE - Unable to find SCSI Device.
--*/
{
EFI_STATUS Status;
EFI_SCSI_INQUIRY_DATA InquiryData;
UINT32 InquiryDataLength;
EFI_SCSI_SENSE_DATA SenseData;
UINT8 SenseDataLength;
UINT8 HostAdapterStatus;
UINT8 TargetStatus;
EFI_SCSI_SENSE_DATA SenseData;
EFI_SCSI_INQUIRY_DATA InquiryData;
HostAdapterStatus = 0;
TargetStatus = 0;
@ -766,7 +1112,7 @@ Returns:
}
}
if ((0x1e >= InquiryData.Peripheral_Type) && (InquiryData.Peripheral_Type >= 0xa)) {
if (0x1e >= InquiryData.Peripheral_Type >= 0xa) {
return FALSE;
}
@ -786,3 +1132,158 @@ Returns:
return TRUE;
}
STATIC
EFI_STATUS
EFIAPI
ScsiioToPassThruPacket (
IN EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet,
IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *CommandPacket
)
/*++
Routine Description:
Convert EFI_SCSI_IO_SCSI_REQUEST_PACKET packet to
EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet
Arguments:
Packet - The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
CommandPacket - The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
Returns:
NONE
--*/
{
//
//EFI 1.10 doesn't support Bi-Direction Command.
//
if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_BIDIRECTIONAL) {
return EFI_UNSUPPORTED;
}
ZeroMem (CommandPacket, sizeof (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET));
CommandPacket->Timeout = Packet->Timeout;
CommandPacket->Cdb = Packet->Cdb;
CommandPacket->CdbLength = Packet->CdbLength;
CommandPacket->DataDirection = Packet->DataDirection;
CommandPacket->HostAdapterStatus = Packet->HostAdapterStatus;
CommandPacket->TargetStatus = Packet->TargetStatus;
CommandPacket->SenseData = Packet->SenseData;
CommandPacket->SenseDataLength = Packet->SenseDataLength;
if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_READ) {
CommandPacket->DataBuffer = Packet->InDataBuffer;
CommandPacket->TransferLength = Packet->InTransferLength;
} else if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_WRITE) {
CommandPacket->DataBuffer = Packet->OutDataBuffer;
CommandPacket->TransferLength = Packet->OutTransferLength;
}
return EFI_SUCCESS;
}
STATIC
EFI_STATUS
EFIAPI
PassThruToScsiioPacket (
IN EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket,
IN OUT EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet
)
/*++
Routine Description:
Convert EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET packet to
EFI_SCSI_IO_SCSI_REQUEST_PACKET packet
Arguments:
ScsiPacket - The pointer of EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET
Packet - The pointer of EFI_SCSI_IO_SCSI_REQUEST_PACKET
Returns:
NONE
--*/
{
Packet->Timeout = ScsiPacket->Timeout;
Packet->Cdb = ScsiPacket->Cdb;
Packet->CdbLength = ScsiPacket->CdbLength;
Packet->DataDirection = ScsiPacket->DataDirection;
Packet->HostAdapterStatus = ScsiPacket->HostAdapterStatus;
Packet->TargetStatus = ScsiPacket->TargetStatus;
Packet->SenseData = ScsiPacket->SenseData;
Packet->SenseDataLength = ScsiPacket->SenseDataLength;
if (ScsiPacket->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_READ) {
Packet->InDataBuffer = ScsiPacket->DataBuffer;
Packet->InTransferLength = ScsiPacket->TransferLength;
} else if (Packet->DataDirection == EFI_SCSI_IO_DATA_DIRECTION_WRITE) {
Packet->OutDataBuffer = ScsiPacket->DataBuffer;
Packet->OutTransferLength = ScsiPacket->TransferLength;
}
return EFI_SUCCESS;
}
STATIC
VOID
EFIAPI
NotifyFunction (
EFI_EVENT Event,
VOID *Context
)
/*++
Routine Description:
Notify Function in which convert EFI1.0 PassThru Packet back to UEF2.0
SCSI IO Packet.
Arguments:
Event - The instance of EFI_EVENT.
Context - The parameter passed in.
Returns:
NONE
--*/
{
EFI_SCSI_IO_SCSI_REQUEST_PACKET *Packet;
EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *ScsiPacket;
EFI_EVENT CallerEvent;
SCSI_EVENT_DATA *PassData;
PassData = (SCSI_EVENT_DATA*)Context;
Packet = (EFI_SCSI_IO_SCSI_REQUEST_PACKET *)PassData->Data1;
ScsiPacket = (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET*)WorkingBuffer;
//
// Convert EFI1.0 PassThru packet to UEFI2.0 SCSI IO Packet.
//
PassThruToScsiioPacket(ScsiPacket, Packet);
//
// After converting EFI1.0 PassThru Packet back to UEFI2.0 SCSI IO Packet,
// free WorkingBuffer.
//
gBS->FreePool(WorkingBuffer);
//
// Signal Event to tell caller to pick up UEFI2.0 SCSI IO Packet.
//
CallerEvent = PassData->Data2;
gBS->CloseEvent(Event);
gBS->SignalEvent(CallerEvent);
}

150
MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.h
View File

@ -33,15 +33,30 @@ Revision History
#define SCSI_IO_DEV_SIGNATURE EFI_SIGNATURE_32 ('s', 'c', 'i', 'o')
typedef struct _SCSI_TARGET_ID {
union {
UINT32 Scsi;
UINT8 ExtScsi[4];
} ScsiId;
UINT8 ExtScsiId[12];
}SCSI_TARGET_ID;
typedef struct {
VOID *Data1;
VOID *Data2;
} SCSI_EVENT_DATA;
typedef struct {
UINT32 Signature;
EFI_HANDLE Handle;
EFI_SCSI_IO_PROTOCOL ScsiIo;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
BOOLEAN ExtScsiSupport;
EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;
UINT32 Pun;
EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiPassThru;
SCSI_TARGET_ID Pun;
UINT64 Lun;
UINT8 ScsiDeviceType;
UINT8 ScsiVersion;
@ -50,6 +65,32 @@ typedef struct {
#define SCSI_IO_DEV_FROM_THIS(a) CR (a, SCSI_IO_DEV, ScsiIo, SCSI_IO_DEV_SIGNATURE)
//
// SCSI Bus Controller device strcuture
//
#define EFI_SCSI_BUS_PROTOCOL_GUID \
{ \
0x5261213D, 0x3A3D, 0x441E, 0xB3, 0xAF, 0x21, 0xD3, 0xF7, 0xA4, 0xCA, 0x17 \
}
typedef struct _EFI_SCSI_BUS_PROTOCOL {
UINT64 Reserved;
} EFI_SCSI_BUS_PROTOCOL;
#define SCSI_BUS_DEVICE_SIGNATURE EFI_SIGNATURE_32 ('s', 'c', 's', 'i')
typedef struct _SCSI_BUS_DEVICE {
UINTN Signature;
EFI_SCSI_BUS_PROTOCOL BusIdentify;
BOOLEAN ExtScsiSupport;
EFI_SCSI_PASS_THRU_PROTOCOL *ScsiInterface;
EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiInterface;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
} SCSI_BUS_DEVICE;
#define SCSI_BUS_CONTROLLER_DEVICE_FROM_THIS(a) CR (a, SCSI_BUS_DEVICE, BusIdentify, SCSI_BUS_DEVICE_SIGNATURE)
//
// Global Variables
//
@ -112,16 +153,18 @@ ScsiGetDeviceType (
Routine Description:
TODO: Add function description
Retrieves the device type information of the SCSI Controller.
Arguments:
This - TODO: add argument description
DeviceType - TODO: add argument description
This - Protocol instance pointer.
DeviceType - A pointer to the device type information
retrieved from the SCSI Controller.
Returns:
TODO: add return values
EFI_SUCCESS - Retrieves the device type information successfully.
EFI_INVALID_PARAMETER - The DeviceType is NULL.
--*/
;
@ -135,15 +178,20 @@ ScsiResetBus (
Routine Description:
TODO: Add function description
Resets the SCSI Bus that the SCSI Controller is attached to.
Arguments:
This - TODO: add argument description
This - Protocol instance pointer.
Returns:
TODO: add return values
EFI_SUCCESS - The SCSI bus is reset successfully.
EFI_DEVICE_ERROR - Errors encountered when resetting the SCSI bus.
EFI_UNSUPPORTED - The bus reset operation is not supported by the
SCSI Host Controller.
EFI_TIMEOUT - A timeout occurred while attempting to reset
the SCSI bus.
--*/
;
@ -157,15 +205,21 @@ ScsiResetDevice (
Routine Description:
TODO: Add function description
Resets the SCSI Controller that the device handle specifies.
Arguments:
This - TODO: add argument description
This - Protocol instance pointer.
Returns:
TODO: add return values
EFI_SUCCESS - Reset the SCSI controller successfully.
EFI_DEVICE_ERROR - Errors are encountered when resetting the
SCSI Controller.
EFI_UNSUPPORTED - The SCSI bus does not support a device
reset operation.
EFI_TIMEOUT - A timeout occurred while attempting to
reset the SCSI Controller.
--*/
;
@ -181,17 +235,54 @@ ScsiExecuteSCSICommand (
Routine Description:
TODO: Add function description
Sends a SCSI Request Packet to the SCSI Controller for execution.
Arguments:
This - TODO: add argument description
CommandPacket - TODO: add argument description
Event - TODO: add argument description
This - Protocol instance pointer.
Packet - The SCSI request packet to send to the SCSI
Controller specified by the device handle.
Event - If the SCSI bus where the SCSI device is attached
does not support non-blocking I/O, then Event is
ignored, and blocking I/O is performed.
If Event is NULL, then blocking I/O is performed.
If Event is not NULL and non-blocking I/O is
supported, then non-blocking I/O is performed,
and Event will be signaled when the SCSI Request
Packet completes.
Returns:
TODO: add return values
EFI_SUCCESS - The SCSI Request Packet was sent by the host
successfully, and TransferLength bytes were
transferred to/from DataBuffer.See
HostAdapterStatus, TargetStatus,
SenseDataLength, and SenseData in that order
for additional status information.
EFI_BAD_BUFFER_SIZE - The SCSI Request Packet was executed,
but the entire DataBuffer could not be transferred.
The actual number of bytes transferred is returned
in TransferLength. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in
that order for additional status information.
EFI_NOT_READY - The SCSI Request Packet could not be sent because
there are too many SCSI Command Packets already
queued.The caller may retry again later.
EFI_DEVICE_ERROR - A device error occurred while attempting to send
the SCSI Request Packet. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in
that order for additional status information.
EFI_INVALID_PARAMETER - The contents of CommandPacket are invalid.
The SCSI Request Packet was not sent, so no
additional status information is available.
EFI_UNSUPPORTED - The command described by the SCSI Request Packet
is not supported by the SCSI initiator(i.e., SCSI
Host Controller). The SCSI Request Packet was not
sent, so no additional status information is
available.
EFI_TIMEOUT - A timeout occurred while waiting for the SCSI
Request Packet to execute. See HostAdapterStatus,
TargetStatus, SenseDataLength, and SenseData in
that order for additional status information.
--*/
;
@ -200,29 +291,28 @@ EFI_STATUS
ScsiScanCreateDevice (
EFI_DRIVER_BINDING_PROTOCOL *This,
EFI_HANDLE Controller,
UINT32 Pun,
SCSI_TARGET_ID *TargetId,
UINT64 Lun,
EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru,
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath
SCSI_BUS_DEVICE *ScsiBusDev
)
/*++
Routine Description:
TODO: Add function description
Scan SCSI Bus to discover the device, and attach ScsiIoProtocol to it.
Arguments:
This - TODO: add argument description
Controller - TODO: add argument description
Pun - TODO: add argument description
Lun - TODO: add argument description
ScsiPassThru - TODO: add argument description
ParentDevicePath - TODO: add argument description
This - Protocol instance pointer
Controller - Controller handle
Pun - The Pun of the SCSI device on the SCSI channel.
Lun - The Lun of the SCSI device on the SCSI channel.
ScsiBusDev - The pointer of SCSI_BUS_DEVICE
Returns:
TODO: add return values
EFI_SUCCESS - Successfully to discover the device and attach ScsiIoProtocol to it.
EFI_OUT_OF_RESOURCES - Fail to discover the device.
--*/
;

3
MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.inf
View File

@ -79,6 +79,7 @@
UefiLib
UefiDriverEntryPoint
DebugLib
MemoryAllocationLib
################################################################################
@ -92,4 +93,4 @@
gEfiScsiIoProtocolGuid # PROTOCOL BY_START
gEfiDevicePathProtocolGuid # PROTOCOL TO_START
gEfiScsiPassThruProtocolGuid # PROTOCOL TO_START
gEfiExtScsiPassThruProtocolGuid