[mirror_edk2.git] / OldMdePkg / Include / Protocol / ScsiPassThru.h

/** @file\r
  SCSI Pass Through protocol.\r
\r
  Copyright (c) 2006, 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:  ScsiPassThru.h\r
\r
**/\r
\r
#ifndef __SCSI_PASS_THROUGH_H__\r
#define __SCSI_PASS_THROUGH_H__\r
\r
#define EFI_SCSI_PASS_THRU_PROTOCOL_GUID \\r
  { \\r
    0xa59e8fcf, 0xbda0, 0x43bb, {0x90, 0xb1, 0xd3, 0x73, 0x2e, 0xca, 0xa8, 0x77 } \\r
  }\r
\r
//\r
// Forward reference for pure ANSI compatability\r
//\r
typedef struct _EFI_SCSI_PASS_THRU_PROTOCOL  EFI_SCSI_PASS_THRU_PROTOCOL;\r
\r
#define EFI_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL    0x0001\r
#define EFI_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL     0x0002\r
#define EFI_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO  0x0004\r
\r
//\r
// SCSI Host Adapter Status definition\r
//\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_OK                     0x00\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_TIMEOUT_COMMAND        0x09  // timeout when processing the command\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_TIMEOUT                0x0b  // timeout when waiting for the command processing\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_MESSAGE_REJECT         0x0d  // a message reject was received when processing command\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_BUS_RESET              0x0e  // a bus reset was detected\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_PARITY_ERROR           0x0f\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_REQUEST_SENSE_FAILED   0x10  // the adapter failed in issuing request sense command\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_SELECTION_TIMEOUT      0x11  // selection timeout\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_DATA_OVERRUN_UNDERRUN  0x12  // data overrun or data underrun\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_BUS_FREE               0x13  // Unexepected bus free\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_PHASE_ERROR            0x14  // Target bus phase sequence failure\r
#define EFI_SCSI_STATUS_HOST_ADAPTER_OTHER                  0x7f\r
\r
//\r
// SCSI Target Status definition\r
//\r
#define EFI_SCSI_STATUS_TARGET_GOOD                       0x00\r
#define EFI_SCSI_STATUS_TARGET_CHECK_CONDITION            0x02  // check condition\r
#define EFI_SCSI_STATUS_TARGET_CONDITION_MET              0x04  // condition met\r
#define EFI_SCSI_STATUS_TARGET_BUSY                       0x08  // busy\r
#define EFI_SCSI_STATUS_TARGET_INTERMEDIATE               0x10  // intermediate\r
#define EFI_SCSI_STATUS_TARGET_INTERMEDIATE_CONDITION_MET 0x14  // intermediate-condition met\r
#define EFI_SCSI_STATUS_TARGET_RESERVATION_CONFLICT       0x18  // reservation conflict\r
#define EFI_SCSI_STATUS_TARGET_COMMOND_TERMINATED         0x22  // command terminated\r
#define EFI_SCSI_STATUS_TARGET_QUEUE_FULL                 0x28  // queue full\r
\r
typedef struct {\r
  UINT64  Timeout;\r
  VOID    *DataBuffer;\r
  VOID    *SenseData;\r
  VOID    *Cdb;\r
  UINT32  TransferLength;\r
  UINT8   CdbLength;\r
  UINT8   DataDirection;\r
  UINT8   HostAdapterStatus;\r
  UINT8   TargetStatus;\r
  UINT8   SenseDataLength;\r
} EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET;\r
\r
typedef struct {\r
  CHAR16  *ControllerName;\r
  CHAR16  *ChannelName;\r
  UINT32  AdapterId;\r
  UINT32  Attributes;\r
  UINT32  IoAlign;\r
} EFI_SCSI_PASS_THRU_MODE;\r
\r
/**\r
  Sends a SCSI Request Packet to a SCSI device that is attached to \r
  the SCSI channel. This function supports both blocking I/O and \r
  non-blocking I/O.  The blocking I/O functionality is required, \r
  and the non-blocking I/O functionality is optional.\r
\r
  @param  This   Protocol instance pointer.\r
  @param  Target The Target ID of the SCSI device to\r
                 send the SCSI Request Packet.\r
  @param  Lun    The LUN of the SCSI device to send the\r
                 SCSI Request Packet.\r
  @param  Packet A pointer to the SCSI Request Packet to send\r
                 to the SCSI device specified by Target and Lun.\r
  @param  Event  If non-blocking I/O is not supported then Event\r
                 is ignored, and blocking I/O is performed.\r
                 If Event is NULL, then blocking I/O is performed.\r
                 If Event is not NULL and non blocking I/O is\r
                 supported, then non-blocking I/O is performed,\r
                 and Event will be signaled when the SCSI Request\r
                 Packet completes\r
\r
  @retval EFI_SUCCESS               The SCSI Request Packet was sent by the host, and\r
                                    TransferLength bytes were transferred to/from\r
                                    DataBuffer.See HostAdapterStatus, TargetStatus,\r
                                    SenseDataLength,and SenseData in that order\r
                                    for additional status information.\r
  @retval EFI_WARN_BUFFER_TOO_SMALL The SCSI Request Packet was executed, but the\r
                                    entire DataBuffer could not be transferred.\r
                                    The actual number of bytes transferred is returned\r
                                    in TransferLength. See HostAdapterStatus,\r
                                    TargetStatus, SenseDataLength, and SenseData in\r
                                    that order for additional status information.\r
  @retval EFI_NOT_READY             The SCSI Request Packet could not be sent because\r
                                    there are too many SCSI Request Packets already\r
                                    queued.  The caller may retry again later.\r
  @retval EFI_DEVICE_ERROR          A device error occurred while attempting to send\r
                                    the SCSI Request Packet. See HostAdapterStatus,\r
                                    TargetStatus, SenseDataLength, and SenseData in\r
                                    that order for additional status information.\r
  @retval EFI_INVALID_PARAMETER     Target, Lun, or the contents of ScsiRequestPacket\r
                                    are invalid. The SCSI Request Packet was not sent,\r
                                    so no additional status information is available.\r
  @retval EFI_UNSUPPORTED           The command described by the SCSI Request Packet\r
                                    is not supported by the host adapter. The SCSI\r
                                    Request Packet was not sent, so no additional\r
                                    status information is available.\r
  @retval EFI_TIMEOUT               A timeout occurred while waiting for the SCSI\r
                                    Request Packet to execute. See HostAdapterStatus,\r
                                    TargetStatus, SenseDataLength, and SenseData in\r
                                    that order for additional status information.\r
                                    \r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SCSI_PASS_THRU_PASSTHRU) (\r
  IN EFI_SCSI_PASS_THRU_PROTOCOL                          *This,\r
  IN UINT32                                               Target,\r
  IN UINT64                                               Lun,\r
  IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET           *Packet,\r
  IN EFI_EVENT                                            Event   OPTIONAL\r
  )\r
;\r
\r
/**\r
  Used to retrieve the list of legal Target IDs for SCSI devices \r
  on a SCSI channel.\r
\r
  @param  This   Protocol instance pointer.\r
  @param  Target On input, a pointer to the Target ID of a\r
                 SCSI device present on the SCSI channel.\r
                 On output, a pointer to the Target ID of\r
                 the next SCSI device present on a SCSI channel.\r
                 An input value of 0xFFFFFFFF retrieves the\r
                 Target ID of the first SCSI device present on\r
                 a SCSI channel.\r
  @param  Lun    On input, a pointer to the LUN of a SCSI device\r
                 present on the SCSI channel.On output, a pointer\r
                 to the LUN of the next SCSI device present on a\r
                 SCSI channel.\r
\r
  @retval EFI_SUCCESS           The Target ID of the next SCSI device on the SCSI\r
                                channel was returned in Target and Lun.\r
  @retval EFI_NOT_FOUND         There are no more SCSI devices on this SCSI channel.\r
  @retval EFI_INVALID_PARAMETER Target is not 0xFFFFFFFF, and Target and Lun were\r
                                 not returned on a previous call to GetNextDevice().\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SCSI_PASS_THRU_GET_NEXT_DEVICE) (\r
  IN EFI_SCSI_PASS_THRU_PROTOCOL            *This,\r
  IN OUT UINT32                             *Target,\r
  IN OUT UINT64                             *Lun\r
  )\r
;\r
\r
/**\r
  Used to allocate and build a device path node for a SCSI device \r
  on a SCSI channel.\r
\r
  @param  This       Protocol instance pointer.\r
  @param  Target     The Target ID of the SCSI device for which\r
                     a device path node is to be allocated and built.\r
  @param  Lun        The LUN of the SCSI device for which a device\r
                     path node is to be allocated and built.\r
  @param  DevicePath A pointer to a single device path node that\r
                     describes the SCSI device specified by\r
                     Target and Lun. This function is responsible\r
                     for allocating the buffer DevicePath with the boot\r
                     service AllocatePool().  It is the caller's\r
                     responsibility to free DevicePath when the caller\r
                     is finished with DevicePath.\r
\r
  @retval EFI_SUCCESS           The device path node that describes the SCSI device\r
                                specified by Target and Lun was allocated and\r
                                returned in DevicePath.\r
  @retval EFI_NOT_FOUND         The SCSI devices specified by Target and Lun does\r
                                not exist on the SCSI channel.\r
  @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
  @retval EFI_OUT_OF_RESOURCES  There are not enough resources to allocate\r
                                DevicePath.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SCSI_PASS_THRU_BUILD_DEVICE_PATH) (\r
  IN EFI_SCSI_PASS_THRU_PROTOCOL            *This,\r
  IN     UINT32                             Target,\r
  IN     UINT64                             Lun,\r
  IN OUT EFI_DEVICE_PATH_PROTOCOL           **DevicePath\r
  )\r
;\r
\r
/**\r
  Used to translate a device path node to a Target ID and LUN.\r
\r
  @param  This       Protocol instance pointer.\r
  @param  DevicePath A pointer to the device path node that\r
                     describes a SCSI device on the SCSI channel.\r
  @param  Target     A pointer to the Target ID of a SCSI device\r
                     on the SCSI channel.\r
  @param  Lun        A pointer to the LUN of a SCSI device on\r
                     the SCSI channel.\r
\r
  @retval EFI_SUCCESS           DevicePath was successfully translated to a\r
                                Target ID and LUN, and they were returned\r
                                in Target and Lun.\r
  @retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
  @retval EFI_INVALID_PARAMETER Target is NULL.\r
  @retval EFI_INVALID_PARAMETER Lun is NULL.\r
  @retval EFI_UNSUPPORTED       This driver does not support the device path\r
                                node type in DevicePath.\r
  @retval EFI_NOT_FOUND         A valid translation from DevicePath to a\r
                                Target ID and LUN does not exist.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SCSI_PASS_THRU_GET_TARGET_LUN) (\r
  IN EFI_SCSI_PASS_THRU_PROTOCOL            *This,\r
  IN  EFI_DEVICE_PATH_PROTOCOL              *DevicePath,\r
  OUT UINT32                                *Target,\r
  OUT UINT64                                *Lun\r
  )\r
;\r
\r
/**\r
  Resets a SCSI channel.This operation resets all the \r
  SCSI devices connected to the SCSI channel.\r
\r
  @param  This Protocol instance pointer.\r
\r
  @retval EFI_SUCCESS      The SCSI channel was reset.\r
  @retval EFI_UNSUPPORTED  The SCSI channel does not support\r
                           a channel reset operation.\r
  @retval EFI_DEVICE_ERROR A device error occurred while\r
                           attempting to reset the SCSI channel.\r
  @retval EFI_TIMEOUT      A timeout occurred while attempting\r
                           to reset the SCSI channel.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SCSI_PASS_THRU_RESET_CHANNEL) (\r
  IN EFI_SCSI_PASS_THRU_PROTOCOL             *This\r
  )\r
;\r
\r
/**\r
  Resets a SCSI device that is connected to a SCSI channel.\r
\r
  @param  This   Protocol instance pointer.\r
  @param  Target The Target ID of the SCSI device to reset.\r
  @param  Lun    The LUN of the SCSI device to reset.\r
\r
  @retval EFI_SUCCESS           The SCSI device specified by Target and\r
                                Lun was reset.\r
  @retval EFI_UNSUPPORTED       The SCSI channel does not support a target\r
                                reset operation.\r
  @retval EFI_INVALID_PARAMETER Target or Lun are invalid.\r
  @retval EFI_DEVICE_ERROR      A device error occurred while attempting\r
                                to reset the SCSI device specified by Target\r
                                and Lun.\r
  @retval EFI_TIMEOUT           A timeout occurred while attempting to reset\r
                                the SCSI device specified by Target and Lun.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_SCSI_PASS_THRU_RESET_TARGET) (\r
  IN EFI_SCSI_PASS_THRU_PROTOCOL             *This,\r
  IN UINT32                                  Target,\r
  IN UINT64                                  Lun\r
  )\r
;\r
\r
struct _EFI_SCSI_PASS_THRU_PROTOCOL {\r
  EFI_SCSI_PASS_THRU_MODE               *Mode;\r
  EFI_SCSI_PASS_THRU_PASSTHRU           PassThru;\r
  EFI_SCSI_PASS_THRU_GET_NEXT_DEVICE    GetNextDevice;\r
  EFI_SCSI_PASS_THRU_BUILD_DEVICE_PATH  BuildDevicePath;\r
  EFI_SCSI_PASS_THRU_GET_TARGET_LUN     GetTargetLun;\r
  EFI_SCSI_PASS_THRU_RESET_CHANNEL      ResetChannel;\r
  EFI_SCSI_PASS_THRU_RESET_TARGET       ResetTarget;\r
};\r
\r
extern EFI_GUID gEfiScsiPassThruProtocolGuid;\r
\r
#endif\r
Commit	Line	Data
878ddf1f	1	/** @file\r
	2	SCSI Pass Through protocol.\r
	3	\r
	4	Copyright (c) 2006, Intel Corporation \r
	5	All rights reserved. This program and the accompanying materials \r
	6	are licensed and made available under the terms and conditions of the BSD License \r
	7	which accompanies this distribution. The full text of the license may be found at \r
	8	http://opensource.org/licenses/bsd-license.php \r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	12	\r
	13	Module Name: ScsiPassThru.h\r
	14	\r
	15	**/\r
	16	\r
	17	#ifndef __SCSI_PASS_THROUGH_H__\r
	18	#define __SCSI_PASS_THROUGH_H__\r
	19	\r
	20	#define EFI_SCSI_PASS_THRU_PROTOCOL_GUID \\r
	21	{ \\r
	22	0xa59e8fcf, 0xbda0, 0x43bb, {0x90, 0xb1, 0xd3, 0x73, 0x2e, 0xca, 0xa8, 0x77 } \\r
	23	}\r
	24	\r
	25	//\r
	26	// Forward reference for pure ANSI compatability\r
	27	//\r
	28	typedef struct _EFI_SCSI_PASS_THRU_PROTOCOL EFI_SCSI_PASS_THRU_PROTOCOL;\r
	29	\r
	30	#define EFI_SCSI_PASS_THRU_ATTRIBUTES_PHYSICAL 0x0001\r
	31	#define EFI_SCSI_PASS_THRU_ATTRIBUTES_LOGICAL 0x0002\r
	32	#define EFI_SCSI_PASS_THRU_ATTRIBUTES_NONBLOCKIO 0x0004\r
	33	\r
	34	//\r
	35	// SCSI Host Adapter Status definition\r
	36	//\r
	37	#define EFI_SCSI_STATUS_HOST_ADAPTER_OK 0x00\r
	38	#define EFI_SCSI_STATUS_HOST_ADAPTER_TIMEOUT_COMMAND 0x09 // timeout when processing the command\r
	39	#define EFI_SCSI_STATUS_HOST_ADAPTER_TIMEOUT 0x0b // timeout when waiting for the command processing\r
	40	#define EFI_SCSI_STATUS_HOST_ADAPTER_MESSAGE_REJECT 0x0d // a message reject was received when processing command\r
	41	#define EFI_SCSI_STATUS_HOST_ADAPTER_BUS_RESET 0x0e // a bus reset was detected\r
	42	#define EFI_SCSI_STATUS_HOST_ADAPTER_PARITY_ERROR 0x0f\r
	43	#define EFI_SCSI_STATUS_HOST_ADAPTER_REQUEST_SENSE_FAILED 0x10 // the adapter failed in issuing request sense command\r
	44	#define EFI_SCSI_STATUS_HOST_ADAPTER_SELECTION_TIMEOUT 0x11 // selection timeout\r
	45	#define EFI_SCSI_STATUS_HOST_ADAPTER_DATA_OVERRUN_UNDERRUN 0x12 // data overrun or data underrun\r
	46	#define EFI_SCSI_STATUS_HOST_ADAPTER_BUS_FREE 0x13 // Unexepected bus free\r
	47	#define EFI_SCSI_STATUS_HOST_ADAPTER_PHASE_ERROR 0x14 // Target bus phase sequence failure\r
	48	#define EFI_SCSI_STATUS_HOST_ADAPTER_OTHER 0x7f\r
	49	\r
	50	//\r
	51	// SCSI Target Status definition\r
	52	//\r
	53	#define EFI_SCSI_STATUS_TARGET_GOOD 0x00\r
	54	#define EFI_SCSI_STATUS_TARGET_CHECK_CONDITION 0x02 // check condition\r
	55	#define EFI_SCSI_STATUS_TARGET_CONDITION_MET 0x04 // condition met\r
	56	#define EFI_SCSI_STATUS_TARGET_BUSY 0x08 // busy\r
	57	#define EFI_SCSI_STATUS_TARGET_INTERMEDIATE 0x10 // intermediate\r
	58	#define EFI_SCSI_STATUS_TARGET_INTERMEDIATE_CONDITION_MET 0x14 // intermediate-condition met\r
	59	#define EFI_SCSI_STATUS_TARGET_RESERVATION_CONFLICT 0x18 // reservation conflict\r
	60	#define EFI_SCSI_STATUS_TARGET_COMMOND_TERMINATED 0x22 // command terminated\r
	61	#define EFI_SCSI_STATUS_TARGET_QUEUE_FULL 0x28 // queue full\r
	62	\r
	63	typedef struct {\r
	64	UINT64 Timeout;\r
65	VOID *DataBuffer;\r
66	VOID *SenseData;\r
67	VOID *Cdb;\r
68	UINT32 TransferLength;\r
69	UINT8 CdbLength;\r
70	UINT8 DataDirection;\r
71	UINT8 HostAdapterStatus;\r
72	UINT8 TargetStatus;\r
73	UINT8 SenseDataLength;\r
74	} EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET;\r
75	\r
76	typedef struct {\r
77	CHAR16 *ControllerName;\r
78	CHAR16 *ChannelName;\r
79	UINT32 AdapterId;\r
80	UINT32 Attributes;\r
81	UINT32 IoAlign;\r
82	} EFI_SCSI_PASS_THRU_MODE;\r
83	\r
84	/**\r
85	Sends a SCSI Request Packet to a SCSI device that is attached to \r
86	the SCSI channel. This function supports both blocking I/O and \r
87	non-blocking I/O. The blocking I/O functionality is required, \r
88	and the non-blocking I/O functionality is optional.\r
89	\r
90	@param This Protocol instance pointer.\r
91	@param Target The Target ID of the SCSI device to\r
92	send the SCSI Request Packet.\r
93	@param Lun The LUN of the SCSI device to send the\r
94	SCSI Request Packet.\r
95	@param Packet A pointer to the SCSI Request Packet to send\r
96	to the SCSI device specified by Target and Lun.\r
97	@param Event If non-blocking I/O is not supported then Event\r
98	is ignored, and blocking I/O is performed.\r
99	If Event is NULL, then blocking I/O is performed.\r
100	If Event is not NULL and non blocking I/O is\r
101	supported, then non-blocking I/O is performed,\r
102	and Event will be signaled when the SCSI Request\r
103	Packet completes\r
104	\r
105	@retval EFI_SUCCESS The SCSI Request Packet was sent by the host, and\r
106	TransferLength bytes were transferred to/from\r
107	DataBuffer.See HostAdapterStatus, TargetStatus,\r
108	SenseDataLength,and SenseData in that order\r
109	for additional status information.\r
110	@retval EFI_WARN_BUFFER_TOO_SMALL The SCSI Request Packet was executed, but the\r
111	entire DataBuffer could not be transferred.\r
112	The actual number of bytes transferred is returned\r
113	in TransferLength. See HostAdapterStatus,\r
114	TargetStatus, SenseDataLength, and SenseData in\r
115	that order for additional status information.\r
116	@retval EFI_NOT_READY The SCSI Request Packet could not be sent because\r
117	there are too many SCSI Request Packets already\r
118	queued. The caller may retry again later.\r
119	@retval EFI_DEVICE_ERROR A device error occurred while attempting to send\r
120	the SCSI Request Packet. See HostAdapterStatus,\r
121	TargetStatus, SenseDataLength, and SenseData in\r
122	that order for additional status information.\r
123	@retval EFI_INVALID_PARAMETER Target, Lun, or the contents of ScsiRequestPacket\r
124	are invalid. The SCSI Request Packet was not sent,\r
125	so no additional status information is available.\r
126	@retval EFI_UNSUPPORTED The command described by the SCSI Request Packet\r
127	is not supported by the host adapter. The SCSI\r
128	Request Packet was not sent, so no additional\r
129	status information is available.\r
130	@retval EFI_TIMEOUT A timeout occurred while waiting for the SCSI\r
131	Request Packet to execute. See HostAdapterStatus,\r
132	TargetStatus, SenseDataLength, and SenseData in\r
133	that order for additional status information.\r
134	\r
135	**/\r
136	typedef\r
137	EFI_STATUS\r
138	(EFIAPI *EFI_SCSI_PASS_THRU_PASSTHRU) (\r
139	IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r
140	IN UINT32 Target,\r
141	IN UINT64 Lun,\r
142	IN OUT EFI_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet,\r
143	IN EFI_EVENT Event OPTIONAL\r
144	)\r
145	;\r
146	\r
147	/**\r
148	Used to retrieve the list of legal Target IDs for SCSI devices \r
149	on a SCSI channel.\r
150	\r
151	@param This Protocol instance pointer.\r
152	@param Target On input, a pointer to the Target ID of a\r
153	SCSI device present on the SCSI channel.\r
154	On output, a pointer to the Target ID of\r
155	the next SCSI device present on a SCSI channel.\r
156	An input value of 0xFFFFFFFF retrieves the\r
157	Target ID of the first SCSI device present on\r
158	a SCSI channel.\r
159	@param Lun On input, a pointer to the LUN of a SCSI device\r
160	present on the SCSI channel.On output, a pointer\r
161	to the LUN of the next SCSI device present on a\r
162	SCSI channel.\r
163	\r
164	@retval EFI_SUCCESS The Target ID of the next SCSI device on the SCSI\r
165	channel was returned in Target and Lun.\r
166	@retval EFI_NOT_FOUND There are no more SCSI devices on this SCSI channel.\r
167	@retval EFI_INVALID_PARAMETER Target is not 0xFFFFFFFF, and Target and Lun were\r
168	not returned on a previous call to GetNextDevice().\r
169	\r
170	**/\r
171	typedef\r
172	EFI_STATUS\r
173	(EFIAPI *EFI_SCSI_PASS_THRU_GET_NEXT_DEVICE) (\r
174	IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r
175	IN OUT UINT32 *Target,\r
176	IN OUT UINT64 *Lun\r
177	)\r
178	;\r
179	\r
180	/**\r
181	Used to allocate and build a device path node for a SCSI device \r
182	on a SCSI channel.\r
183	\r
184	@param This Protocol instance pointer.\r
185	@param Target The Target ID of the SCSI device for which\r
186	a device path node is to be allocated and built.\r
187	@param Lun The LUN of the SCSI device for which a device\r
188	path node is to be allocated and built.\r
189	@param DevicePath A pointer to a single device path node that\r
190	describes the SCSI device specified by\r
191	Target and Lun. This function is responsible\r
192	for allocating the buffer DevicePath with the boot\r
193	service AllocatePool(). It is the caller's\r
194	responsibility to free DevicePath when the caller\r
195	is finished with DevicePath.\r
196	\r
197	@retval EFI_SUCCESS The device path node that describes the SCSI device\r
198	specified by Target and Lun was allocated and\r
199	returned in DevicePath.\r
200	@retval EFI_NOT_FOUND The SCSI devices specified by Target and Lun does\r
201	not exist on the SCSI channel.\r
202	@retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
203	@retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate\r
204	DevicePath.\r
205	\r
206	**/\r
207	typedef\r
208	EFI_STATUS\r
209	(EFIAPI *EFI_SCSI_PASS_THRU_BUILD_DEVICE_PATH) (\r
210	IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r
211	IN UINT32 Target,\r
212	IN UINT64 Lun,\r
213	IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath\r
214	)\r
215	;\r
216	\r
217	/**\r
218	Used to translate a device path node to a Target ID and LUN.\r
219	\r
220	@param This Protocol instance pointer.\r
221	@param DevicePath A pointer to the device path node that\r
222	describes a SCSI device on the SCSI channel.\r
223	@param Target A pointer to the Target ID of a SCSI device\r
224	on the SCSI channel.\r
225	@param Lun A pointer to the LUN of a SCSI device on\r
226	the SCSI channel.\r
227	\r
228	@retval EFI_SUCCESS DevicePath was successfully translated to a\r
229	Target ID and LUN, and they were returned\r
230	in Target and Lun.\r
231	@retval EFI_INVALID_PARAMETER DevicePath is NULL.\r
232	@retval EFI_INVALID_PARAMETER Target is NULL.\r
233	@retval EFI_INVALID_PARAMETER Lun is NULL.\r
234	@retval EFI_UNSUPPORTED This driver does not support the device path\r
235	node type in DevicePath.\r
236	@retval EFI_NOT_FOUND A valid translation from DevicePath to a\r
237	Target ID and LUN does not exist.\r
238	\r
239	**/\r
240	typedef\r
241	EFI_STATUS\r
242	(EFIAPI *EFI_SCSI_PASS_THRU_GET_TARGET_LUN) (\r
243	IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r
244	IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
245	OUT UINT32 *Target,\r
246	OUT UINT64 *Lun\r
247	)\r
248	;\r
249	\r
250	/**\r
251	Resets a SCSI channel.This operation resets all the \r
252	SCSI devices connected to the SCSI channel.\r
253	\r
254	@param This Protocol instance pointer.\r
255	\r
256	@retval EFI_SUCCESS The SCSI channel was reset.\r
257	@retval EFI_UNSUPPORTED The SCSI channel does not support\r
258	a channel reset operation.\r
259	@retval EFI_DEVICE_ERROR A device error occurred while\r
260	attempting to reset the SCSI channel.\r
261	@retval EFI_TIMEOUT A timeout occurred while attempting\r
262	to reset the SCSI channel.\r
263	\r
264	**/\r
265	typedef\r
266	EFI_STATUS\r
267	(EFIAPI *EFI_SCSI_PASS_THRU_RESET_CHANNEL) (\r
268	IN EFI_SCSI_PASS_THRU_PROTOCOL *This\r
269	)\r
270	;\r
271	\r
272	/**\r
273	Resets a SCSI device that is connected to a SCSI channel.\r
274	\r
275	@param This Protocol instance pointer.\r
276	@param Target The Target ID of the SCSI device to reset.\r
277	@param Lun The LUN of the SCSI device to reset.\r
278	\r
279	@retval EFI_SUCCESS The SCSI device specified by Target and\r
280	Lun was reset.\r
281	@retval EFI_UNSUPPORTED The SCSI channel does not support a target\r
282	reset operation.\r
283	@retval EFI_INVALID_PARAMETER Target or Lun are invalid.\r
284	@retval EFI_DEVICE_ERROR A device error occurred while attempting\r
285	to reset the SCSI device specified by Target\r
286	and Lun.\r
287	@retval EFI_TIMEOUT A timeout occurred while attempting to reset\r
288	the SCSI device specified by Target and Lun.\r
289	\r
290	**/\r
291	typedef\r
292	EFI_STATUS\r
293	(EFIAPI *EFI_SCSI_PASS_THRU_RESET_TARGET) (\r
294	IN EFI_SCSI_PASS_THRU_PROTOCOL *This,\r
295	IN UINT32 Target,\r
296	IN UINT64 Lun\r
297	)\r
298	;\r
299	\r
300	struct _EFI_SCSI_PASS_THRU_PROTOCOL {\r
301	EFI_SCSI_PASS_THRU_MODE *Mode;\r
302	EFI_SCSI_PASS_THRU_PASSTHRU PassThru;\r
303	EFI_SCSI_PASS_THRU_GET_NEXT_DEVICE GetNextDevice;\r
304	EFI_SCSI_PASS_THRU_BUILD_DEVICE_PATH BuildDevicePath;\r
305	EFI_SCSI_PASS_THRU_GET_TARGET_LUN GetTargetLun;\r
306	EFI_SCSI_PASS_THRU_RESET_CHANNEL ResetChannel;\r
307	EFI_SCSI_PASS_THRU_RESET_TARGET ResetTarget;\r
308	};\r
309	\r
310	extern EFI_GUID gEfiScsiPassThruProtocolGuid;\r
311	\r
312	#endif\r