diff options
| author | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-02 02:40:39 +0000 |
|---|---|---|
| committer | klu2 <klu2@6f19259b-4bc3-4df7-8a09-765794883524> | 2007-07-02 02:40:39 +0000 |
| commit | 70c94b3b6ddf1d84ddb20118d898fd7a85725386 (patch) | |
| tree | f422a33ccf43226349c3f74091a01b790f023537 /MdeModulePkg/Bus/Scsi/ScsiBusDxe | |
| parent | 6d2f1f24c3b53f664c1e61409f30b586e43f300b (diff) | |
| download | edk2-70c94b3b6ddf1d84ddb20118d898fd7a85725386.zip edk2-70c94b3b6ddf1d84ddb20118d898fd7a85725386.tar.gz edk2-70c94b3b6ddf1d84ddb20118d898fd7a85725386.tar.bz2 | |
Porting R8's PI-enabled ScsiBus driver
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2927 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Bus/Scsi/ScsiBusDxe')
| -rw-r--r-- | MdeModulePkg/Bus/Scsi/ScsiBusDxe/ComponentName.c | 1 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c | 829 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.h | 178 | ||||
| -rw-r--r-- | MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.inf | 3 |
4 files changed, 802 insertions, 209 deletions
diff --git a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ComponentName.c b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ComponentName.c index 444ca44..1a99c70 100644 --- a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ComponentName.c +++ b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ComponentName.c @@ -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>
diff --git a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c index 0840cba..68f3683 100644 --- a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c +++ b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.c @@ -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.
@@ -99,48 +138,78 @@ SCSIBusDriverBindingSupported ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
-
- Routine Description:
-
- Arguments:
-
- Returns:
-
+
+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;
-
- //
- // If RemainingDevicePath is not NULL, it should verify that the first device
- // path node in RemainingDevicePath is an ATAPI Device path node.
+ EFI_SCSI_PASS_THRU_PROTOCOL *PassThru;
+ EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtPassThru;
//
- 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;
}
@@ -153,77 +222,164 @@ SCSIBusDriverBindingStart ( IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
-
- Routine Description:
-
- Arguments:
-
- Returns:
-
+
+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
// TODO: Controller - add argument and description to function comment
// 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;
+ }
- StartPun = 0;
- StartLun = 0;
+ ScsiTargetId = NULL;
+ ScsiTargetId = AllocateZeroPool (sizeof (SCSI_TARGET_ID));
+ if (ScsiTargetId == NULL) {
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ TargetId = &ScsiTargetId->ScsiId.ExtScsi[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,
- &gEfiScsiPassThruProtocolGuid,
- (VOID **) &ScsiPassThru,
+ &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 **) &(ScsiBusDev->ScsiInterface),
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ 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
- );
+ 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) {
- continue;
+ 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
//
- gBS->CloseProtocol (
- Controller,
- &gEfiScsiPassThruProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
- 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->CloseProtocol (
+ Controller,
+ &gEfiDevicePathProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ gBS->FreePool (ScsiBusDev);
return EFI_SUCCESS;
}
@@ -329,12 +522,22 @@ SCSIBusDriverBindingStop ( //
// Close the child handle
//
- Status = gBS->CloseProtocol (
- Controller,
- &gEfiScsiPassThruProtocolGuid,
- This->DriverBindingHandle,
- ChildHandleBuffer[Index]
- );
+ 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;
- gBS->OpenProtocol (
- Controller,
- &gEfiScsiPassThruProtocolGuid,
- (VOID **) &ScsiPassThru,
- This->DriverBindingHandle,
- ChildHandleBuffer[Index],
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
+ if (ScsiIoDevice->ExtScsiSupport) {
+ gBS->OpenProtocol (
+ Controller,
+ &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);
- return ScsiIoDevice->ScsiPassThru->ResetChannel (ScsiIoDevice->ScsiPassThru);
-
+ 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,
- ScsiIoDevice->Lun
- );
+ 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);
+
+ 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 {
- RequestPacket = (EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *) Packet;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof(EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET),
+ (VOID**)&WorkingBuffer
+ );
- Status = ScsiIoDevice->ScsiPassThru->PassThru (
- ScsiIoDevice->ScsiPassThru,
- ScsiIoDevice->Pun,
- ScsiIoDevice->Lun,
- RequestPacket,
- Event
- );
+ 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.ScsiId.Scsi,
+ ScsiIoDevice->Lun,
+ 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.
--*/
{
@@ -630,37 +939,61 @@ 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,
- ScsiIoDevice->Lun,
- &ScsiDevicePath
- );
- if (Status == EFI_OUT_OF_RESOURCES) {
- gBS->FreePool (ScsiIoDevice);
- return Status;
+ if (ScsiIoDevice->ExtScsiSupport){
+ Status = ScsiIoDevice->ExtScsiPassThru->BuildDevicePath (
+ ScsiIoDevice->ExtScsiPassThru,
+ &ScsiIoDevice->Pun.ScsiId.ExtScsi[0],
+ ScsiIoDevice->Lun,
+ &ScsiDevicePath
+ );
+ if (Status == EFI_OUT_OF_RESOURCES) {
+ 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
);
//
@@ -674,7 +1007,7 @@ Returns: gBS->FreePool (ScsiIoDevice);
return EFI_OUT_OF_RESOURCES;
}
-
+
Status = gBS->InstallMultipleProtocolInterfaces (
&ScsiIoDevice->Handle,
&gEfiDevicePathProtocolGuid,
@@ -685,21 +1018,33 @@ Returns: );
if (EFI_ERROR (Status)) {
gBS->FreePool (ScsiIoDevice);
+ return EFI_OUT_OF_RESOURCES;
} else {
- gBS->OpenProtocol (
- Controller,
- &gEfiScsiPassThruProtocolGuid,
- (VOID **) &ScsiPassThru,
- This->DriverBindingHandle,
- ScsiIoDevice->Handle,
- EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER
- );
+ 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 **) &(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);
+}
diff --git a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.h b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.h index 594953e..f24afd3 100644 --- a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.h +++ b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.h @@ -33,24 +33,65 @@ 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;
- EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;
-
- UINT32 Pun;
- UINT64 Lun;
- UINT8 ScsiDeviceType;
- UINT8 ScsiVersion;
- BOOLEAN RemovableDevice;
+ UINT32 Signature;
+ EFI_HANDLE Handle;
+ EFI_SCSI_IO_PROTOCOL ScsiIo;
+ EFI_DEVICE_PATH_PROTOCOL *DevicePath;
+ BOOLEAN ExtScsiSupport;
+ EFI_SCSI_PASS_THRU_PROTOCOL *ScsiPassThru;
+ EFI_EXT_SCSI_PASS_THRU_PROTOCOL *ExtScsiPassThru;
+ SCSI_TARGET_ID Pun;
+ UINT64 Lun;
+ UINT8 ScsiDeviceType;
+ UINT8 ScsiVersion;
+ BOOLEAN RemovableDevice;
} SCSI_IO_DEV;
#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
//
extern EFI_DRIVER_BINDING_PROTOCOL gScsiBusDriverBinding;
@@ -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.
--*/
;
diff --git a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.inf b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.inf index b797fb3..6d16420 100644 --- a/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.inf +++ b/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBus.inf @@ -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
|