[mirror_edk2.git] / MdeModulePkg / Bus / Usb / UsbMassStorageDxe / UsbMassBoot.h

/** @file\r
\r
Copyright (c) 2007, Intel Corporation\r
All rights reserved. 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
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
Module Name:\r
\r
  UsbMassBoot.h\r
\r
Abstract:\r
\r
  The definition of command and data of the USB mass storage for\r
  bootability command set.\r
\r
Revision History\r
\r
\r
**/\r
\r
#ifndef _EFI_USB_MASS_BOOT_H_\r
#define _EFI_USB_MASS_BOOT_H_\r
\r
enum {\r
  //\r
  // The opcodes of various usb boot commands:\r
  // INQUIRY/REQUEST_SENSE are "No Timeout Commands" as specified\r
  // by MMC command set. Others are "Group 1 Timeout Commands". That\r
  // is they should be retried if driver is ready.\r
  // We can't use the Peripheral Device Type in Inquiry data to\r
  // determine the timeout used. For example, both floppy and flash\r
  // are likely set their PDT to 0, or Direct Access Device.\r
  //\r
  USB_BOOT_INQUIRY_OPCODE         = 0x12,\r
  USB_BOOT_REQUEST_SENSE_OPCODE   = 0x03,\r
\r
  USB_BOOT_MODE_SENSE10_OPCODE    = 0x5A,\r
  USB_BOOT_READ_CAPACITY_OPCODE   = 0x25,\r
  USB_BOOT_TEST_UNIT_READY_OPCODE = 0x00,\r
  USB_BOOT_READ10_OPCODE          = 0x28,\r
  USB_BOOT_WRITE10_OPCODE         = 0x2A,\r
\r
  USB_SCSI_MODE_SENSE6_OPCODE     = 0x1A,\r
  \r
  //\r
  // The Sense Key part of the sense data. Sense data has three levels:\r
  // Sense key, Additional Sense Code and Additional Sense Code Qualifier\r
  //\r
  USB_BOOT_SENSE_NO_SENSE         = 0x00, // No sense key\r
  USB_BOOT_SENSE_RECOVERED        = 0x01, // Last command succeed with recovery actions\r
  USB_BOOT_SENSE_NOT_READY        = 0x02, // Device not ready\r
  USB_BOOT_SNESE_MEDIUM_ERROR     = 0X03, // Failed probably because flaw in the media\r
  USB_BOOT_SENSE_HARDWARE_ERROR   = 0X04, // Non-recoverable hardware failure\r
  USB_BOOT_SENSE_ILLEGAL_REQUEST  = 0X05, // Illegal parameters in the request\r
  USB_BOOT_SENSE_UNIT_ATTENTION   = 0X06, // Removable medium may have been changed\r
  USB_BOOT_SNESE_DATA_PROTECT     = 0X07, // Write protected\r
  USB_BOOT_SENSE_BLANK_CHECK      = 0X08, // Blank/non-blank medium while reading/writing\r
  USB_BOOT_SENSE_VENDOR           = 0X09, // Vendor specific sense key\r
  USB_BOOT_SENSE_ABORTED          = 0X0B, // Command aborted by the device\r
  USB_BOOT_SENSE_VOLUME_OVERFLOW  = 0x0D, // Partition overflow\r
  USB_BOOT_SENSE_MISCOMPARE       = 0x0E, // Source data mis-match while verfying.\r
\r
  USB_BOOT_ASC_NOT_READY          = 0x04,\r
  USB_BOOT_ASC_NO_MEDIA           = 0x3A,\r
  USB_BOOT_ASC_MEDIA_CHANGE       = 0x28,\r
\r
  //\r
  // Other parameters\r
  //\r
  USB_BOOT_IO_BLOCKS              = 64,\r
\r
  //\r
  // Boot Retry times\r
  //\r
  USB_BOOT_COMMAND_RETRY          = 5,\r
  USB_BOOT_WAIT_RETRY             = 5,\r
\r
  //\r
  // Boot Stall time\r
  //\r
  USB_BOOT_UNIT_READY_STALL       = 50 * USB_MASS_STALL_1_MS,\r
\r
  //\r
  // Boot Transfer timeout\r
  //\r
  // USB2.0 Spec define the up-limit timeout 5s for all command. USB floppy, \r
  // USB CD-Rom and iPod devices are much slower than USB key when reponse \r
  // most of commands, So we set 5s as timeout here.\r
  // \r
  //\r
  USB_BOOT_GENERAL_CMD_TIMEOUT    = 5 * USB_MASS_STALL_1_S,\r
  \r
  //\r
  // Supported PDT codes, or Peripheral Device Type\r
  //\r
  USB_PDT_DIRECT_ACCESS           = 0x00,       // Direct access device\r
  USB_PDT_CDROM                   = 0x05,       // CDROM\r
  USB_PDT_OPTICAL                 = 0x07,       // Non-CD optical disks\r
  USB_PDT_SIMPLE_DIRECT           = 0x0E        // Simplified direct access device\r
};\r
\r
//\r
// The required commands are INQUIRY, READ CAPACITY, TEST UNIT READY,\r
// READ10, WRITE10, and REQUEST SENSE. The BLOCK_IO protocol uses LBA\r
// so it isn't necessary to issue MODE SENSE / READ FORMAT CAPACITY\r
// command to retrieve the disk gemotrics.\r
//\r
#pragma pack(1)\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;            // Lun (high 3 bits)\r
  UINT8             Reserved0[2];\r
  UINT8             AllocLen;\r
  UINT8             Reserved1;\r
  UINT8             Pad[6];\r
} USB_BOOT_INQUIRY_CMD;\r
\r
typedef struct {\r
  UINT8             Pdt;            // Peripheral Device Type (low 5 bits)\r
  UINT8             Removable;      // Removable Media (highest bit)\r
  UINT8             Reserved0[2];\r
  UINT8             AddLen;         // Additional length\r
  UINT8             Reserved1[3];\r
  UINT8             VendorID[8];\r
  UINT8             ProductID[16];\r
  UINT8             ProductRevision[4];\r
} USB_BOOT_INQUIRY_DATA;\r
\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;\r
  UINT8             Reserved0[8];\r
  UINT8             Pad[2];\r
} USB_BOOT_READ_CAPACITY_CMD;\r
\r
typedef struct {\r
  UINT8             LastLba[4];\r
  UINT8             BlockLen[4];\r
} USB_BOOT_READ_CAPACITY_DATA;\r
\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;\r
  UINT8             Reserved[4];\r
  UINT8             Pad[6];\r
} USB_BOOT_TEST_UNIT_READY_CMD;\r
\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;\r
  UINT8             PageCode;\r
  UINT8             Reserved0[4];\r
  UINT8             ParaListLenMsb;\r
  UINT8             ParaListLenLsb;\r
  UINT8             Reserved1;\r
  UINT8             Pad[2];\r
} USB_BOOT_MODE_SENSE10_CMD;\r
\r
typedef struct {\r
  UINT8             ModeDataLenMsb;\r
  UINT8             ModeDataLenLsb;\r
  UINT8             Reserved0[4];\r
  UINT8             BlkDesLenMsb;\r
  UINT8             BlkDesLenLsb;\r
} USB_BOOT_MODE_SENSE10_PARA_HEADER;\r
\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;            // Lun (High 3 bits)\r
  UINT8             Lba[4];         // Logical block address\r
  UINT8             Reserved0;\r
  UINT8             TransferLen[2]; // Transfer length\r
  UINT8             Reserverd1;\r
  UINT8             Pad[2];\r
} USB_BOOT_READ10_CMD;\r
\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;\r
  UINT8             Lba[4];\r
  UINT8             Reserved0;\r
  UINT8             TransferLen[2];\r
  UINT8             Reserverd1;\r
  UINT8             Pad[2];\r
} USB_BOOT_WRITE10_CMD;\r
\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;            // Lun (High 3 bits)\r
  UINT8             Reserved0[2];\r
  UINT8             AllocLen;       // Allocation length\r
  UINT8             Reserved1;\r
  UINT8             Pad[6];\r
} USB_BOOT_REQUEST_SENSE_CMD;\r
\r
typedef struct {\r
  UINT8             ErrorCode;\r
  UINT8             Reserved0;\r
  UINT8             SenseKey;       // Sense key (low 4 bits)\r
  UINT8             Infor[4];\r
  UINT8             AddLen;         // Additional Sense length, 10\r
  UINT8             Reserved1[4];\r
  UINT8             ASC;            // Additional Sense Code\r
  UINT8             ASCQ;           // Additional Sense Code Qualifier\r
  UINT8             Reserverd2[4];\r
} USB_BOOT_REQUEST_SENSE_DATA;\r
\r
typedef struct {\r
  UINT8             OpCode;\r
  UINT8             Lun;\r
  UINT8             PageCode;\r
  UINT8             Reserved0;\r
  UINT8             AllocateLen;\r
  UINT8             Control;\r
} USB_SCSI_MODE_SENSE6_CMD;\r
\r
typedef struct {\r
  UINT8             ModeDataLen;\r
 UINT8             MediumType;\r
  UINT8             DevicePara;\r
  UINT8             BlkDesLen;\r
} USB_SCSI_MODE_SENSE6_PARA_HEADER;\r
#pragma pack()\r
\r
//\r
// Convert a LUN number to that in the command\r
//\r
#define USB_BOOT_LUN(Lun) ((Lun) << 5)\r
\r
//\r
// Get the removable, PDT, and sense key bits from the command data\r
//\r
#define USB_BOOT_REMOVABLE(RmbByte) (((RmbByte) & 0x80) != 0)\r
#define USB_BOOT_PDT(Pdt)           ((Pdt) & 0x1f)\r
#define USB_BOOT_SENSE_KEY(Key)     ((Key) & 0x0f)\r
\r
//\r
// Swap the byte sequence of a UINT32. Intel CPU uses little endian\r
// in UEFI environment, but USB boot uses big endian.\r
//\r
#define USB_BOOT_SWAP32(Data32) \\r
                ((((Data32) & 0x000000ff) << 24) | (((Data32) & 0xff000000) >> 24) | \\r
                 (((Data32) & 0x0000ff00) << 8)  | (((Data32) & 0x00ff0000) >> 8))\r
\r
#define USB_BOOT_SWAP16(Data16) \\r
                ((((Data16) & 0x00ff) << 8) | (((Data16) & 0xff00) >> 8))\r
\r
EFI_STATUS\r
UsbBootGetParams (\r
  IN USB_MASS_DEVICE          *UsbMass\r
  );\r
\r
EFI_STATUS\r
UsbBootIsUnitReady (\r
  IN USB_MASS_DEVICE          *UsbMass\r
  );\r
\r
EFI_STATUS\r
UsbBootDetectMedia (\r
  IN  USB_MASS_DEVICE       *UsbMass\r
  );\r
\r
EFI_STATUS\r
UsbBootReadBlocks (\r
  IN  USB_MASS_DEVICE         *UsbMass,\r
  IN  UINT32                  Lba,\r
  IN  UINTN                   TotalBlock,\r
  OUT UINT8                   *Buffer\r
  );\r
\r
EFI_STATUS\r
UsbBootWriteBlocks (\r
  IN  USB_MASS_DEVICE         *UsbMass,\r
  IN  UINT32                  Lba,\r
  IN  UINTN                   TotalBlock,\r
  OUT UINT8                   *Buffer\r
  );\r
#endif\r
\r
Commit	Line	Data
e237e7ae	1	/** @file\r
	2	\r
	3	Copyright (c) 2007, Intel Corporation\r
	4	All rights reserved. This program and the accompanying materials\r
	5	are licensed and made available under the terms and conditions of the BSD License\r
	6	which accompanies this distribution. The full text of the license may be found at\r
	7	http://opensource.org/licenses/bsd-license.php\r
	8	\r
	9	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	10	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	11	\r
	12	Module Name:\r
	13	\r
	14	UsbMassBoot.h\r
	15	\r
	16	Abstract:\r
	17	\r
	18	The definition of command and data of the USB mass storage for\r
	19	bootability command set.\r
	20	\r
	21	Revision History\r
	22	\r
	23	\r
	24	**/\r
	25	\r
	26	#ifndef _EFI_USB_MASS_BOOT_H_\r
	27	#define _EFI_USB_MASS_BOOT_H_\r
	28	\r
	29	enum {\r
	30	//\r
	31	// The opcodes of various usb boot commands:\r
	32	// INQUIRY/REQUEST_SENSE are "No Timeout Commands" as specified\r
	33	// by MMC command set. Others are "Group 1 Timeout Commands". That\r
	34	// is they should be retried if driver is ready.\r
	35	// We can't use the Peripheral Device Type in Inquiry data to\r
	36	// determine the timeout used. For example, both floppy and flash\r
	37	// are likely set their PDT to 0, or Direct Access Device.\r
	38	//\r
	39	USB_BOOT_INQUIRY_OPCODE = 0x12,\r
	40	USB_BOOT_REQUEST_SENSE_OPCODE = 0x03,\r
	41	\r
50fa1b3a	42	USB_BOOT_MODE_SENSE10_OPCODE = 0x5A,\r
e237e7ae	43	USB_BOOT_READ_CAPACITY_OPCODE = 0x25,\r
	44	USB_BOOT_TEST_UNIT_READY_OPCODE = 0x00,\r
	45	USB_BOOT_READ10_OPCODE = 0x28,\r
50fa1b3a	46	USB_BOOT_WRITE10_OPCODE = 0x2A,\r
e237e7ae	47	\r
50fa1b3a	48	USB_SCSI_MODE_SENSE6_OPCODE = 0x1A,\r
50fa1b3a	49	\r
e237e7ae	50	//\r
	51	// The Sense Key part of the sense data. Sense data has three levels:\r
	52	// Sense key, Additional Sense Code and Additional Sense Code Qualifier\r
	53	//\r
	54	USB_BOOT_SENSE_NO_SENSE = 0x00, // No sense key\r
	55	USB_BOOT_SENSE_RECOVERED = 0x01, // Last command succeed with recovery actions\r
	56	USB_BOOT_SENSE_NOT_READY = 0x02, // Device not ready\r
	57	USB_BOOT_SNESE_MEDIUM_ERROR = 0X03, // Failed probably because flaw in the media\r
	58	USB_BOOT_SENSE_HARDWARE_ERROR = 0X04, // Non-recoverable hardware failure\r
	59	USB_BOOT_SENSE_ILLEGAL_REQUEST = 0X05, // Illegal parameters in the request\r
	60	USB_BOOT_SENSE_UNIT_ATTENTION = 0X06, // Removable medium may have been changed\r
	61	USB_BOOT_SNESE_DATA_PROTECT = 0X07, // Write protected\r
	62	USB_BOOT_SENSE_BLANK_CHECK = 0X08, // Blank/non-blank medium while reading/writing\r
	63	USB_BOOT_SENSE_VENDOR = 0X09, // Vendor specific sense key\r
	64	USB_BOOT_SENSE_ABORTED = 0X0B, // Command aborted by the device\r
	65	USB_BOOT_SENSE_VOLUME_OVERFLOW = 0x0D, // Partition overflow\r
	66	USB_BOOT_SENSE_MISCOMPARE = 0x0E, // Source data mis-match while verfying.\r
	67	\r
	68	USB_BOOT_ASC_NOT_READY = 0x04,\r
e237e7ae	69	USB_BOOT_ASC_NO_MEDIA = 0x3A,\r
	70	USB_BOOT_ASC_MEDIA_CHANGE = 0x28,\r
	71	\r
e237e7ae	72	//\r
	73	// Other parameters\r
	74	//\r
	75	USB_BOOT_IO_BLOCKS = 64,\r
	76	\r
	77	//\r
	78	// Boot Retry times\r
	79	//\r
	80	USB_BOOT_COMMAND_RETRY = 5,\r
	81	USB_BOOT_WAIT_RETRY = 5,\r
	82	\r
	83	//\r
	84	// Boot Stall time\r
	85	//\r
	86	USB_BOOT_UNIT_READY_STALL = 50 * USB_MASS_STALL_1_MS,\r
	87	\r
	88	//\r
	89	// Boot Transfer timeout\r
	90	//\r
50fa1b3a	91	// USB2.0 Spec define the up-limit timeout 5s for all command. USB floppy, \r
	92	// USB CD-Rom and iPod devices are much slower than USB key when reponse \r
	93	// most of commands, So we set 5s as timeout here.\r
	94	// \r
	95	//\r
	96	USB_BOOT_GENERAL_CMD_TIMEOUT = 5 * USB_MASS_STALL_1_S,\r
	97	\r
e237e7ae	98	//\r
	99	// Supported PDT codes, or Peripheral Device Type\r
	100	//\r
	101	USB_PDT_DIRECT_ACCESS = 0x00, // Direct access device\r
	102	USB_PDT_CDROM = 0x05, // CDROM\r
	103	USB_PDT_OPTICAL = 0x07, // Non-CD optical disks\r
c52fa98c	104	USB_PDT_SIMPLE_DIRECT = 0x0E // Simplified direct access device\r
e237e7ae	105	};\r
	106	\r
	107	//\r
	108	// The required commands are INQUIRY, READ CAPACITY, TEST UNIT READY,\r
	109	// READ10, WRITE10, and REQUEST SENSE. The BLOCK_IO protocol uses LBA\r
	110	// so it isn't necessary to issue MODE SENSE / READ FORMAT CAPACITY\r
	111	// command to retrieve the disk gemotrics.\r
	112	//\r
	113	#pragma pack(1)\r
	114	typedef struct {\r
	115	UINT8 OpCode;\r
	116	UINT8 Lun; // Lun (high 3 bits)\r
	117	UINT8 Reserved0[2];\r
	118	UINT8 AllocLen;\r
	119	UINT8 Reserved1;\r
	120	UINT8 Pad[6];\r
	121	} USB_BOOT_INQUIRY_CMD;\r
	122	\r
	123	typedef struct {\r
	124	UINT8 Pdt; // Peripheral Device Type (low 5 bits)\r
	125	UINT8 Removable; // Removable Media (highest bit)\r
	126	UINT8 Reserved0[2];\r
	127	UINT8 AddLen; // Additional length\r
	128	UINT8 Reserved1[3];\r
	129	UINT8 VendorID[8];\r
	130	UINT8 ProductID[16];\r
	131	UINT8 ProductRevision[4];\r
	132	} USB_BOOT_INQUIRY_DATA;\r
	133	\r
	134	typedef struct {\r
	135	UINT8 OpCode;\r
	136	UINT8 Lun;\r
	137	UINT8 Reserved0[8];\r
	138	UINT8 Pad[2];\r
	139	} USB_BOOT_READ_CAPACITY_CMD;\r
	140	\r
	141	typedef struct {\r
	142	UINT8 LastLba[4];\r
	143	UINT8 BlockLen[4];\r
	144	} USB_BOOT_READ_CAPACITY_DATA;\r
	145	\r
	146	typedef struct {\r
	147	UINT8 OpCode;\r
	148	UINT8 Lun;\r
	149	UINT8 Reserved[4];\r
	150	UINT8 Pad[6];\r
	151	} USB_BOOT_TEST_UNIT_READY_CMD;\r
	152	\r
	153	typedef struct {\r
	154	UINT8 OpCode;\r
	155	UINT8 Lun;\r
	156	UINT8 PageCode;\r
	157	UINT8 Reserved0[4];\r
	158	UINT8 ParaListLenMsb;\r
	159	UINT8 ParaListLenLsb;\r
	160	UINT8 Reserved1;\r
	161	UINT8 Pad[2];\r
50fa1b3a	162	} USB_BOOT_MODE_SENSE10_CMD;\r
e237e7ae	163	\r
	164	typedef struct {\r
	165	UINT8 ModeDataLenMsb;\r
	166	UINT8 ModeDataLenLsb;\r
	167	UINT8 Reserved0[4];\r
	168	UINT8 BlkDesLenMsb;\r
	169	UINT8 BlkDesLenLsb;\r
50fa1b3a	170	} USB_BOOT_MODE_SENSE10_PARA_HEADER;\r
e237e7ae	171	\r
	172	typedef struct {\r
	173	UINT8 OpCode;\r
	174	UINT8 Lun; // Lun (High 3 bits)\r
	175	UINT8 Lba[4]; // Logical block address\r
	176	UINT8 Reserved0;\r
	177	UINT8 TransferLen[2]; // Transfer length\r
	178	UINT8 Reserverd1;\r
	179	UINT8 Pad[2];\r
	180	} USB_BOOT_READ10_CMD;\r
	181	\r
	182	typedef struct {\r
	183	UINT8 OpCode;\r
	184	UINT8 Lun;\r
	185	UINT8 Lba[4];\r
	186	UINT8 Reserved0;\r
	187	UINT8 TransferLen[2];\r
	188	UINT8 Reserverd1;\r
	189	UINT8 Pad[2];\r
	190	} USB_BOOT_WRITE10_CMD;\r
	191	\r
	192	typedef struct {\r
	193	UINT8 OpCode;\r
	194	UINT8 Lun; // Lun (High 3 bits)\r
	195	UINT8 Reserved0[2];\r
	196	UINT8 AllocLen; // Allocation length\r
	197	UINT8 Reserved1;\r
	198	UINT8 Pad[6];\r
	199	} USB_BOOT_REQUEST_SENSE_CMD;\r
	200	\r
	201	typedef struct {\r
	202	UINT8 ErrorCode;\r
	203	UINT8 Reserved0;\r
	204	UINT8 SenseKey; // Sense key (low 4 bits)\r
	205	UINT8 Infor[4];\r
	206	UINT8 AddLen; // Additional Sense length, 10\r
	207	UINT8 Reserved1[4];\r
	208	UINT8 ASC; // Additional Sense Code\r
	209	UINT8 ASCQ; // Additional Sense Code Qualifier\r
	210	UINT8 Reserverd2[4];\r
	211	} USB_BOOT_REQUEST_SENSE_DATA;\r
50fa1b3a	212	\r
	213	typedef struct {\r
	214	UINT8 OpCode;\r
	215	UINT8 Lun;\r
	216	UINT8 PageCode;\r
	217	UINT8 Reserved0;\r
	218	UINT8 AllocateLen;\r
	219	UINT8 Control;\r
	220	} USB_SCSI_MODE_SENSE6_CMD;\r
	221	\r
	222	typedef struct {\r
	223	UINT8 ModeDataLen;\r
	224	UINT8 MediumType;\r
	225	UINT8 DevicePara;\r
	226	UINT8 BlkDesLen;\r
	227	} USB_SCSI_MODE_SENSE6_PARA_HEADER;\r
e237e7ae	228	#pragma pack()\r
	229	\r
	230	//\r
	231	// Convert a LUN number to that in the command\r
	232	//\r
	233	#define USB_BOOT_LUN(Lun) ((Lun) << 5)\r
	234	\r
	235	//\r
	236	// Get the removable, PDT, and sense key bits from the command data\r
	237	//\r
	238	#define USB_BOOT_REMOVABLE(RmbByte) (((RmbByte) & 0x80) != 0)\r
	239	#define USB_BOOT_PDT(Pdt) ((Pdt) & 0x1f)\r
	240	#define USB_BOOT_SENSE_KEY(Key) ((Key) & 0x0f)\r
	241	\r
	242	//\r
	243	// Swap the byte sequence of a UINT32. Intel CPU uses little endian\r
	244	// in UEFI environment, but USB boot uses big endian.\r
	245	//\r
	246	#define USB_BOOT_SWAP32(Data32) \\r
	247	((((Data32) & 0x000000ff) << 24) \| (((Data32) & 0xff000000) >> 24) \| \\r
	248	(((Data32) & 0x0000ff00) << 8) \| (((Data32) & 0x00ff0000) >> 8))\r
	249	\r
	250	#define USB_BOOT_SWAP16(Data16) \\r
	251	((((Data16) & 0x00ff) << 8) \| (((Data16) & 0xff00) >> 8))\r
	252	\r
	253	EFI_STATUS\r
	254	UsbBootGetParams (\r
	255	IN USB_MASS_DEVICE *UsbMass\r
	256	);\r
	257	\r
	258	EFI_STATUS\r
	259	UsbBootIsUnitReady (\r
	260	IN USB_MASS_DEVICE *UsbMass\r
	261	);\r
	262	\r
	263	EFI_STATUS\r
	264	UsbBootDetectMedia (\r
	265	IN USB_MASS_DEVICE *UsbMass\r
	266	);\r
	267	\r
	268	EFI_STATUS\r
	269	UsbBootReadBlocks (\r
	270	IN USB_MASS_DEVICE *UsbMass,\r
	271	IN UINT32 Lba,\r
	272	IN UINTN TotalBlock,\r
	273	OUT UINT8 *Buffer\r
	274	);\r
	275	\r
	276	EFI_STATUS\r
	277	UsbBootWriteBlocks (\r
	278	IN USB_MASS_DEVICE *UsbMass,\r
	279	IN UINT32 Lba,\r
	280	IN UINTN TotalBlock,\r
	281	OUT UINT8 *Buffer\r
	282	);\r
	283	#endif\r
	284	\r