\r
**/\r
\r
+#include <IndustryStandard/LsiScsi.h>\r
+#include <IndustryStandard/Pci.h>\r
+#include <Library/BaseLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/PcdLib.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/UefiLib.h>\r
+#include <Protocol/PciIo.h>\r
+#include <Protocol/PciRootBridgeIo.h>\r
+#include <Protocol/ScsiPassThruExt.h>\r
#include <Uefi/UefiSpec.h>\r
\r
#include "LsiScsi.h"\r
\r
+//\r
+// The next seven functions implement EFI_EXT_SCSI_PASS_THRU_PROTOCOL\r
+// for the LSI 53C895A SCSI Controller. Refer to UEFI Spec 2.3.1 + Errata C,\r
+// sections\r
+// - 14.1 SCSI Driver Model Overview,\r
+// - 14.7 Extended SCSI Pass Thru Protocol.\r
+//\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LsiScsiPassThru (\r
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
+ IN UINT8 *Target,\r
+ IN UINT64 Lun,\r
+ IN OUT EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,\r
+ IN EFI_EVENT Event OPTIONAL\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LsiScsiGetNextTargetLun (\r
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
+ IN OUT UINT8 **TargetPointer,\r
+ IN OUT UINT64 *Lun\r
+ )\r
+{\r
+ LSI_SCSI_DEV *Dev;\r
+ UINTN Idx;\r
+ UINT8 *Target;\r
+ UINT16 LastTarget;\r
+\r
+ //\r
+ // the TargetPointer input parameter is unnecessarily a pointer-to-pointer\r
+ //\r
+ Target = *TargetPointer;\r
+\r
+ //\r
+ // Search for first non-0xFF byte. If not found, return first target & LUN.\r
+ //\r
+ for (Idx = 0; Idx < TARGET_MAX_BYTES && Target[Idx] == 0xFF; ++Idx)\r
+ ;\r
+ if (Idx == TARGET_MAX_BYTES) {\r
+ SetMem (Target, TARGET_MAX_BYTES, 0x00);\r
+ *Lun = 0;\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ CopyMem (&LastTarget, Target, sizeof LastTarget);\r
+\r
+ //\r
+ // increment (target, LUN) pair if valid on input\r
+ //\r
+ Dev = LSI_SCSI_FROM_PASS_THRU (This);\r
+ if (LastTarget > Dev->MaxTarget || *Lun > Dev->MaxLun) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (*Lun < Dev->MaxLun) {\r
+ ++*Lun;\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ if (LastTarget < Dev->MaxTarget) {\r
+ *Lun = 0;\r
+ ++LastTarget;\r
+ CopyMem (Target, &LastTarget, sizeof LastTarget);\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ return EFI_NOT_FOUND;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LsiScsiBuildDevicePath (\r
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
+ IN UINT8 *Target,\r
+ IN UINT64 Lun,\r
+ IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
+ )\r
+{\r
+ UINT16 TargetValue;\r
+ LSI_SCSI_DEV *Dev;\r
+ SCSI_DEVICE_PATH *ScsiDevicePath;\r
+\r
+ if (DevicePath == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ CopyMem (&TargetValue, Target, sizeof TargetValue);\r
+ Dev = LSI_SCSI_FROM_PASS_THRU (This);\r
+ if (TargetValue > Dev->MaxTarget || Lun > Dev->MaxLun || Lun > 0xFFFF) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ ScsiDevicePath = AllocatePool (sizeof *ScsiDevicePath);\r
+ if (ScsiDevicePath == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ ScsiDevicePath->Header.Type = MESSAGING_DEVICE_PATH;\r
+ ScsiDevicePath->Header.SubType = MSG_SCSI_DP;\r
+ ScsiDevicePath->Header.Length[0] = (UINT8) sizeof *ScsiDevicePath;\r
+ ScsiDevicePath->Header.Length[1] = (UINT8) (sizeof *ScsiDevicePath >> 8);\r
+ ScsiDevicePath->Pun = TargetValue;\r
+ ScsiDevicePath->Lun = (UINT16) Lun;\r
+\r
+ *DevicePath = &ScsiDevicePath->Header;\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LsiScsiGetTargetLun (\r
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
+ OUT UINT8 **TargetPointer,\r
+ OUT UINT64 *Lun\r
+ )\r
+{\r
+ SCSI_DEVICE_PATH *ScsiDevicePath;\r
+ LSI_SCSI_DEV *Dev;\r
+ UINT8 *Target;\r
+\r
+ if (DevicePath == NULL || TargetPointer == NULL || *TargetPointer == NULL ||\r
+ Lun == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (DevicePath->Type != MESSAGING_DEVICE_PATH ||\r
+ DevicePath->SubType != MSG_SCSI_DP) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ ScsiDevicePath = (SCSI_DEVICE_PATH *) DevicePath;\r
+ Dev = LSI_SCSI_FROM_PASS_THRU (This);\r
+ if (ScsiDevicePath->Pun > Dev->MaxTarget ||\r
+ ScsiDevicePath->Lun > Dev->MaxLun) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+\r
+ Target = *TargetPointer;\r
+ ZeroMem (Target, TARGET_MAX_BYTES);\r
+ CopyMem (Target, &ScsiDevicePath->Pun, sizeof ScsiDevicePath->Pun);\r
+ *Lun = ScsiDevicePath->Lun;\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LsiScsiResetChannel (\r
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LsiScsiResetTargetLun (\r
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
+ IN UINT8 *Target,\r
+ IN UINT64 Lun\r
+ )\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+LsiScsiGetNextTarget (\r
+ IN EFI_EXT_SCSI_PASS_THRU_PROTOCOL *This,\r
+ IN OUT UINT8 **TargetPointer\r
+ )\r
+{\r
+ LSI_SCSI_DEV *Dev;\r
+ UINTN Idx;\r
+ UINT8 *Target;\r
+ UINT16 LastTarget;\r
+\r
+ //\r
+ // the TargetPointer input parameter is unnecessarily a pointer-to-pointer\r
+ //\r
+ Target = *TargetPointer;\r
+\r
+ //\r
+ // Search for first non-0xFF byte. If not found, return first target.\r
+ //\r
+ for (Idx = 0; Idx < TARGET_MAX_BYTES && Target[Idx] == 0xFF; ++Idx)\r
+ ;\r
+ if (Idx == TARGET_MAX_BYTES) {\r
+ SetMem (Target, TARGET_MAX_BYTES, 0x00);\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ CopyMem (&LastTarget, Target, sizeof LastTarget);\r
+\r
+ //\r
+ // increment target if valid on input\r
+ //\r
+ Dev = LSI_SCSI_FROM_PASS_THRU (This);\r
+ if (LastTarget > Dev->MaxTarget) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (LastTarget < Dev->MaxTarget) {\r
+ ++LastTarget;\r
+ CopyMem (Target, &LastTarget, sizeof LastTarget);\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ return EFI_NOT_FOUND;\r
+}\r
+\r
//\r
// Probe, start and stop functions of this driver, called by the DXE core for\r
// specific devices.\r
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
)\r
{\r
- return EFI_UNSUPPORTED;\r
+ EFI_STATUS Status;\r
+ EFI_PCI_IO_PROTOCOL *PciIo;\r
+ PCI_TYPE00 Pci;\r
+\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiPciIoProtocolGuid,\r
+ (VOID **)&PciIo,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Status = PciIo->Pci.Read (\r
+ PciIo,\r
+ EfiPciIoWidthUint32,\r
+ 0,\r
+ sizeof (Pci) / sizeof (UINT32),\r
+ &Pci\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ if (Pci.Hdr.VendorId == LSI_LOGIC_PCI_VENDOR_ID &&\r
+ Pci.Hdr.DeviceId == LSI_53C895A_PCI_DEVICE_ID) {\r
+ Status = EFI_SUCCESS;\r
+ } else {\r
+ Status = EFI_UNSUPPORTED;\r
+ }\r
+\r
+Done:\r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiPciIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
+ return Status;\r
}\r
\r
EFI_STATUS\r
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL\r
)\r
{\r
+ EFI_STATUS Status;\r
+ LSI_SCSI_DEV *Dev;\r
+\r
+ Dev = AllocateZeroPool (sizeof (*Dev));\r
+ if (Dev == NULL) {\r
+ return EFI_OUT_OF_RESOURCES;\r
+ }\r
+\r
+ Dev->Signature = LSI_SCSI_DEV_SIGNATURE;\r
+\r
+ STATIC_ASSERT (\r
+ FixedPcdGet8 (PcdLsiScsiMaxTargetLimit) < 8,\r
+ "LSI 53C895A supports targets [0..7]"\r
+ );\r
+ STATIC_ASSERT (\r
+ FixedPcdGet8 (PcdLsiScsiMaxLunLimit) < 128,\r
+ "LSI 53C895A supports LUNs [0..127]"\r
+ );\r
+ Dev->MaxTarget = PcdGet8 (PcdLsiScsiMaxTargetLimit);\r
+ Dev->MaxLun = PcdGet8 (PcdLsiScsiMaxLunLimit);\r
+\r
+ //\r
+ // Host adapter channel, doesn't exist\r
+ //\r
+ Dev->PassThruMode.AdapterId = MAX_UINT32;\r
+ Dev->PassThruMode.Attributes =\r
+ EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL |\r
+ EFI_EXT_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL;\r
+\r
+ Dev->PassThru.Mode = &Dev->PassThruMode;\r
+ Dev->PassThru.PassThru = &LsiScsiPassThru;\r
+ Dev->PassThru.GetNextTargetLun = &LsiScsiGetNextTargetLun;\r
+ Dev->PassThru.BuildDevicePath = &LsiScsiBuildDevicePath;\r
+ Dev->PassThru.GetTargetLun = &LsiScsiGetTargetLun;\r
+ Dev->PassThru.ResetChannel = &LsiScsiResetChannel;\r
+ Dev->PassThru.ResetTargetLun = &LsiScsiResetTargetLun;\r
+ Dev->PassThru.GetNextTarget = &LsiScsiGetNextTarget;\r
+\r
+ Status = gBS->InstallProtocolInterface (\r
+ &ControllerHandle,\r
+ &gEfiExtScsiPassThruProtocolGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ &Dev->PassThru\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto FreePool;\r
+ }\r
+\r
return EFI_SUCCESS;\r
+\r
+FreePool:\r
+ FreePool (Dev);\r
+\r
+ return Status;\r
}\r
\r
EFI_STATUS\r
IN EFI_HANDLE *ChildHandleBuffer\r
)\r
{\r
- return EFI_SUCCESS;\r
+ EFI_STATUS Status;\r
+ EFI_EXT_SCSI_PASS_THRU_PROTOCOL *PassThru;\r
+ LSI_SCSI_DEV *Dev;\r
+\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiExtScsiPassThruProtocolGuid,\r
+ (VOID **)&PassThru,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL // Lookup only\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ Dev = LSI_SCSI_FROM_PASS_THRU (PassThru);\r
+\r
+ Status = gBS->UninstallProtocolInterface (\r
+ ControllerHandle,\r
+ &gEfiExtScsiPassThruProtocolGuid,\r
+ &Dev->PassThru\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ FreePool (Dev);\r
+\r
+ return Status;\r
}\r
\r
//\r
projects / mirror_edk2.git / blobdiff