Implementation of the command set of USB Mass Storage Specification\r
for Bootability, Revision 1.0.\r
\r
-Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
@param UsbMass The device whose sense data is requested.\r
\r
- @retval EFI_SUCCESS The command is excuted successfully.\r
+ @retval EFI_SUCCESS The command is executed successfully.\r
@retval EFI_DEVICE_ERROR Failed to request sense.\r
@retval EFI_NO_RESPONSE The device media doesn't response this request.\r
@retval EFI_INVALID_PARAMETER The command has some invalid parameters.\r
switch (USB_BOOT_SENSE_KEY (SenseData.SenseKey)) {\r
\r
case USB_BOOT_SENSE_NO_SENSE:\r
- Status = EFI_NO_RESPONSE;\r
+ if (SenseData.Asc == USB_BOOT_ASC_NO_ADDITIONAL_SENSE_INFORMATION) {\r
+ //\r
+ // It is not an error if a device does not have additional sense information\r
+ //\r
+ Status = EFI_SUCCESS;\r
+ } else {\r
+ Status = EFI_NO_RESPONSE;\r
+ }\r
break;\r
\r
case USB_BOOT_SENSE_RECOVERED:\r
Status = EFI_MEDIA_CHANGED;\r
Media->ReadOnly = FALSE;\r
Media->MediaId++;\r
+ } else if (SenseData.Asc == USB_BOOT_ASC_NOT_READY) {\r
+ Status = EFI_NOT_READY;\r
+ } else if (SenseData.Asc == USB_BOOT_ASC_NO_MEDIA) {\r
+ Status = EFI_NOT_READY;\r
+ } else if (SenseData.Asc == USB_BOOT_ASC_POWER_ON) {\r
+ Status = EFI_SUCCESS;\r
}\r
break;\r
\r
@param DataLen The length of expected data\r
@param Timeout The timeout used to transfer\r
\r
- @retval EFI_SUCCESS Command is excuted successfully\r
+ @retval EFI_SUCCESS Command is executed successfully\r
@retval Others Command execution failed.\r
\r
**/\r
Timeout,\r
&CmdResult\r
);\r
+\r
+ if (Status == EFI_TIMEOUT) {\r
+ DEBUG ((EFI_D_ERROR, "UsbBootExecCmd: Timeout to Exec 0x%x Cmd\n", *(UINT8 *)Cmd));\r
+ return EFI_TIMEOUT;\r
+ }\r
+\r
//\r
// If ExecCommand() returns no error and CmdResult is success,\r
// then the commnad transfer is successful.\r
return EFI_SUCCESS;\r
}\r
\r
- DEBUG ((EFI_D_INFO, "UsbBootExecCmd: Fail to Exec 0x%x Cmd /w %r\n",\r
- *(UINT8 *)Cmd ,Status));\r
-\r
//\r
// If command execution failed, then retrieve error info via sense request.\r
//\r
{\r
EFI_STATUS Status;\r
UINTN Retry;\r
- UINT8 Terminate;\r
+ EFI_EVENT TimeoutEvt;\r
+\r
+ Retry = 0;\r
+ Status = EFI_SUCCESS;\r
+ Status = gBS->CreateEvent (\r
+ EVT_TIMER,\r
+ TPL_CALLBACK,\r
+ NULL,\r
+ NULL,\r
+ &TimeoutEvt\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
\r
- Status = EFI_SUCCESS;\r
+ Status = gBS->SetTimer (TimeoutEvt, TimerRelative, EFI_TIMER_PERIOD_SECONDS(60));\r
+ if (EFI_ERROR (Status)) {\r
+ goto EXIT;\r
+ }\r
\r
- for (Retry = 0, Terminate = 0; Retry < USB_BOOT_COMMAND_RETRY; Retry++) {\r
+ //\r
+ // Execute the cmd and retry if it fails.\r
+ //\r
+ while (EFI_ERROR (gBS->CheckEvent (TimeoutEvt))) {\r
Status = UsbBootExecCmd (\r
UsbMass,\r
Cmd,\r
DataLen,\r
Timeout\r
);\r
- if (Status == EFI_SUCCESS || Status == EFI_MEDIA_CHANGED) {\r
+ if (Status == EFI_SUCCESS || Status == EFI_MEDIA_CHANGED || Status == EFI_NO_MEDIA) {\r
break;\r
}\r
//\r
- // If the device isn't ready, just wait for it without limit on retrial times.\r
+ // If the sense data shows the drive is not ready, we need execute the cmd again.\r
+ // We limit the upper boundary to 60 seconds.\r
//\r
- if (Status == EFI_NOT_READY && Terminate < 3) {\r
- Retry = 0;\r
- Terminate++;\r
+ if (Status == EFI_NOT_READY) {\r
+ continue;\r
}\r
+ //\r
+ // If the status is other error, then just retry 5 times.\r
+ //\r
+ if (Retry++ >= USB_BOOT_COMMAND_RETRY) {\r
+ break;\r
+ }\r
+ }\r
+\r
+EXIT:\r
+ if (TimeoutEvt != NULL) {\r
+ gBS->CloseEvent (TimeoutEvt);\r
}\r
\r
return Status;\r
return Status;\r
}\r
\r
+/**\r
+ Execute READ CAPACITY 16 bytes command to request information regarding\r
+ the capacity of the installed medium of the device.\r
+\r
+ This function executes READ CAPACITY 16 bytes command to get the capacity\r
+ of the USB mass storage media, including the presence, block size,\r
+ and last block number.\r
+\r
+ @param UsbMass The device to retireve disk gemotric.\r
+\r
+ @retval EFI_SUCCESS The disk geometry is successfully retrieved.\r
+ @retval EFI_NOT_READY The returned block size is zero.\r
+ @retval Other READ CAPACITY 16 bytes command execution failed.\r
+ \r
+**/\r
+EFI_STATUS\r
+UsbBootReadCapacity16 (\r
+ IN USB_MASS_DEVICE *UsbMass\r
+ )\r
+{\r
+ UINT8 CapacityCmd[16];\r
+ EFI_SCSI_DISK_CAPACITY_DATA16 CapacityData;\r
+ EFI_BLOCK_IO_MEDIA *Media;\r
+ EFI_STATUS Status;\r
+ UINT32 BlockSize;\r
+\r
+ Media = &UsbMass->BlockIoMedia;\r
+\r
+ Media->MediaPresent = FALSE;\r
+ Media->LastBlock = 0;\r
+ Media->BlockSize = 0;\r
+\r
+ ZeroMem (CapacityCmd, sizeof (CapacityCmd));\r
+ ZeroMem (&CapacityData, sizeof (CapacityData));\r
+\r
+ CapacityCmd[0] = EFI_SCSI_OP_READ_CAPACITY16;\r
+ CapacityCmd[1] = 0x10;\r
+ //\r
+ // Partial medium indicator, set the bytes 2 ~ 9 of the Cdb as ZERO.\r
+ //\r
+ ZeroMem ((CapacityCmd + 2), 8);\r
+\r
+ CapacityCmd[13] = sizeof (CapacityData);\r
+ \r
+ Status = UsbBootExecCmdWithRetry (\r
+ UsbMass,\r
+ CapacityCmd,\r
+ (UINT8) sizeof (CapacityCmd),\r
+ EfiUsbDataIn,\r
+ &CapacityData,\r
+ sizeof (CapacityData),\r
+ USB_BOOT_GENERAL_CMD_TIMEOUT\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Get the information on media presence, block size, and last block number\r
+ // from READ CAPACITY data.\r
+ //\r
+ Media->MediaPresent = TRUE;\r
+ Media->LastBlock = SwapBytes64 (ReadUnaligned64 ((CONST UINT64 *) &(CapacityData.LastLba7)));\r
+\r
+ BlockSize = SwapBytes32 (ReadUnaligned32 ((CONST UINT32 *) &(CapacityData.BlockSize3)));\r
+ \r
+ Media->LowestAlignedLba = (CapacityData.LowestAlignLogic2 << 8) |\r
+ CapacityData.LowestAlignLogic1;\r
+ Media->LogicalBlocksPerPhysicalBlock = (1 << CapacityData.LogicPerPhysical);\r
+ if (BlockSize == 0) {\r
+ //\r
+ // Get sense data \r
+ //\r
+ return UsbBootRequestSense (UsbMass);\r
+ } else {\r
+ Media->BlockSize = BlockSize;\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
\r
/**\r
Execute READ CAPACITY command to request information regarding\r
Media->BlockSize = BlockSize;\r
}\r
\r
- DEBUG ((EFI_D_INFO, "UsbBootReadCapacity Success LBA=%ld BlockSize=%d\n",\r
- Media->LastBlock, Media->BlockSize));\r
+ if (Media->LastBlock == 0xFFFFFFFF) {\r
+ Status = UsbBootReadCapacity16 (UsbMass);\r
+ if (!EFI_ERROR (Status)) {\r
+ UsbMass->Cdb16Byte = TRUE;\r
+ }\r
+ }\r
\r
return Status;\r
}\r
return Status;\r
}\r
\r
+ //\r
+ // According to USB Mass Storage Specification for Bootability, only following\r
+ // 4 Peripheral Device Types are in spec.\r
+ //\r
+ if ((UsbMass->Pdt != USB_PDT_DIRECT_ACCESS) &&\r
+ (UsbMass->Pdt != USB_PDT_CDROM) &&\r
+ (UsbMass->Pdt != USB_PDT_OPTICAL) &&\r
+ (UsbMass->Pdt != USB_PDT_SIMPLE_DIRECT)) {\r
+ DEBUG ((EFI_D_ERROR, "UsbBootGetParams: Found an unsupported peripheral type[%d]\n", UsbMass->Pdt));\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
//\r
// Don't use the Removable bit in inquiry data to test whether the media\r
// is removable because many flash disks wrongly set this bit.\r
if (EFI_ERROR (Status)) {\r
return Status;\r
}\r
-\r
+ DEBUG ((EFI_D_BLKIO, "UsbBootReadBlocks: LBA (0x%x), Blk (0x%x)\n", Lba, Count));\r
Lba += Count;\r
Buffer += Count * BlockSize;\r
TotalBlock -= Count;\r
if (EFI_ERROR (Status)) {\r
return Status;\r
}\r
+ DEBUG ((EFI_D_BLKIO, "UsbBootWriteBlocks: LBA (0x%x), Blk (0x%x)\n", Lba, Count));\r
+\r
+ Lba += Count;\r
+ Buffer += Count * BlockSize;\r
+ TotalBlock -= Count;\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+/**\r
+ Read some blocks from the device by SCSI 16 byte cmd.\r
+\r
+ @param UsbMass The USB mass storage device to read from\r
+ @param Lba The start block number\r
+ @param TotalBlock Total block number to read\r
+ @param Buffer The buffer to read to\r
+\r
+ @retval EFI_SUCCESS Data are read into the buffer\r
+ @retval Others Failed to read all the data\r
+\r
+**/\r
+EFI_STATUS\r
+UsbBootReadBlocks16 (\r
+ IN USB_MASS_DEVICE *UsbMass,\r
+ IN UINT64 Lba,\r
+ IN UINTN TotalBlock,\r
+ OUT UINT8 *Buffer\r
+ )\r
+{\r
+ UINT8 ReadCmd[16];\r
+ EFI_STATUS Status;\r
+ UINT16 Count;\r
+ UINT32 BlockSize;\r
+ UINT32 ByteSize;\r
+ UINT32 Timeout;\r
+\r
+ BlockSize = UsbMass->BlockIoMedia.BlockSize;\r
+ Status = EFI_SUCCESS;\r
+\r
+ while (TotalBlock > 0) {\r
+ //\r
+ // Split the total blocks into smaller pieces.\r
+ //\r
+ Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);\r
+ ByteSize = (UINT32)Count * BlockSize;\r
+\r
+ //\r
+ // USB command's upper limit timeout is 5s. [USB2.0-9.2.6.1]\r
+ //\r
+ Timeout = (UINT32) USB_BOOT_GENERAL_CMD_TIMEOUT;\r
+\r
+ //\r
+ // Fill in the command then execute\r
+ //\r
+ ZeroMem (ReadCmd, sizeof (ReadCmd));\r
+\r
+ ReadCmd[0] = EFI_SCSI_OP_READ16;\r
+ ReadCmd[1] = (UINT8) ((USB_BOOT_LUN (UsbMass->Lun) & 0xE0));\r
+ WriteUnaligned64 ((UINT64 *) &ReadCmd[2], SwapBytes64 (Lba));\r
+ WriteUnaligned32 ((UINT32 *) &ReadCmd[10], SwapBytes32 (Count));\r
+\r
+ Status = UsbBootExecCmdWithRetry (\r
+ UsbMass,\r
+ ReadCmd,\r
+ (UINT8) sizeof (ReadCmd),\r
+ EfiUsbDataIn,\r
+ Buffer,\r
+ ByteSize,\r
+ Timeout\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ DEBUG ((EFI_D_BLKIO, "UsbBootReadBlocks16: LBA (0x%lx), Blk (0x%x)\n", Lba, Count));\r
+ Lba += Count;\r
+ Buffer += Count * BlockSize;\r
+ TotalBlock -= Count;\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
\r
+/**\r
+ Write some blocks to the device by SCSI 16 byte cmd.\r
+\r
+ @param UsbMass The USB mass storage device to write to\r
+ @param Lba The start block number\r
+ @param TotalBlock Total block number to write\r
+ @param Buffer Pointer to the source buffer for the data.\r
+\r
+ @retval EFI_SUCCESS Data are written into the buffer\r
+ @retval Others Failed to write all the data\r
+\r
+**/\r
+EFI_STATUS\r
+UsbBootWriteBlocks16 (\r
+ IN USB_MASS_DEVICE *UsbMass,\r
+ IN UINT64 Lba,\r
+ IN UINTN TotalBlock,\r
+ IN UINT8 *Buffer\r
+ )\r
+{\r
+ UINT8 WriteCmd[16];\r
+ EFI_STATUS Status;\r
+ UINT16 Count;\r
+ UINT32 BlockSize;\r
+ UINT32 ByteSize;\r
+ UINT32 Timeout;\r
+\r
+ BlockSize = UsbMass->BlockIoMedia.BlockSize;\r
+ Status = EFI_SUCCESS;\r
+\r
+ while (TotalBlock > 0) {\r
+ //\r
+ // Split the total blocks into smaller pieces.\r
+ //\r
+ Count = (UINT16)((TotalBlock < USB_BOOT_IO_BLOCKS) ? TotalBlock : USB_BOOT_IO_BLOCKS);\r
+ ByteSize = (UINT32)Count * BlockSize;\r
+\r
+ //\r
+ // USB command's upper limit timeout is 5s. [USB2.0-9.2.6.1]\r
+ //\r
+ Timeout = (UINT32) USB_BOOT_GENERAL_CMD_TIMEOUT;\r
+\r
+ //\r
+ // Fill in the write16 command block\r
+ //\r
+ ZeroMem (WriteCmd, sizeof (WriteCmd));\r
+\r
+ WriteCmd[0] = EFI_SCSI_OP_WRITE16;\r
+ WriteCmd[1] = (UINT8) ((USB_BOOT_LUN (UsbMass->Lun) & 0xE0));\r
+ WriteUnaligned64 ((UINT64 *) &WriteCmd[2], SwapBytes64 (Lba));\r
+ WriteUnaligned32 ((UINT32 *) &WriteCmd[10], SwapBytes32 (Count));\r
+\r
+ Status = UsbBootExecCmdWithRetry (\r
+ UsbMass,\r
+ WriteCmd,\r
+ (UINT8) sizeof (WriteCmd),\r
+ EfiUsbDataOut,\r
+ Buffer,\r
+ ByteSize,\r
+ Timeout\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+ DEBUG ((EFI_D_BLKIO, "UsbBootWriteBlocks: LBA (0x%lx), Blk (0x%x)\n", Lba, Count));\r
Lba += Count;\r
Buffer += Count * BlockSize;\r
TotalBlock -= Count;\r
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