[mirror_edk2.git] / MdePkg / Include / Ppi / Smbus2.h

/** @file\r
  This file declares Smbus2 PPI.\r
  This PPI provides the basic I/O interfaces that a PEIM uses to access its \r
  SMBus controller and the slave devices attached to it.\r
\r
  Copyright (c) 2006 - 2008, 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
  @par Revision Reference:\r
  This PPI is defined in PI.\r
  Version 1.00\r
\r
**/\r
\r
#ifndef __PEI_SMBUS2_PPI_H__\r
#define __PEI_SMBUS2_PPI_H__\r
\r
#include <PiPei.h>\r
#include <IndustryStandard/SmBus.h>\r
\r
#define EFI_PEI_SMBUS2_PPI_GUID \\r
  { 0x9ca93627, 0xb65b, 0x4324, { 0xa2, 0x2, 0xc0, 0xb4, 0x61, 0x76, 0x45, 0x43 } }\r
\r
\r
typedef struct _EFI_PEI_SMBUS2_PPI EFI_PEI_SMBUS2_PPI;\r
\r
//\r
// EFI_SMBUS_DEVICE_COMMAND\r
//\r
typedef UINTN   EFI_SMBUS_DEVICE_COMMAND;\r
\r
\r
/*\r
  Executes an SMBus operation to an SMBus controller. Returns when either \r
  the command has been executed or an error is encountered in doing the operation.\r
\r
  @param  This            A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
  @param  SlaveAddress    The SMBUS hardware address to which the SMBUS device is preassigned or\r
                          allocated.\r
  @param  Command         This command is transmitted by the SMBus host controller to the SMBus slave \r
                          device and the interpretation is SMBus slave device specific. \r
                          It can mean the offset to a list of functions inside \r
                          an SMBus slave device. Not all operations or slave devices support\r
                          this command's registers.\r
  @param  Operation       Signifies which particular SMBus hardware protocol instance that it \r
                          will use to execute the SMBus transactions. \r
                          This SMBus hardware protocol is defined by the System Management Bus (SMBus) \r
                          Specification and is not related to UEFI.\r
  @param  PecCheck        Defines if Packet Error Code (PEC) checking is required for this operation.\r
  @param  Length          Signifies the number of bytes that this operation will do. \r
                          The maximum number of bytes can be revision specific and operation specific.\r
                          This parameter will contain the actual number of bytes that are executed\r
                          for this operation. Not all operations require this argument.\r
  @param  Buffer          Contains the value of data to execute to the SMBus slave device. \r
                          Not all operations require this argument. \r
                          The length of this buffer is identified by Length.\r
\r
\r
  @retval EFI_SUCCESS           The last data that was returned from the access\r
                                matched the poll exit criteria.\r
  @retval EFI_CRC_ERROR         The checksum is not correct (PEC is incorrect)\r
  @retval EFI_TIMEOUT           Timeout expired before the operation was completed.\r
                                Timeout is determined by the SMBus host controller device.\r
  @retval EFI_OUT_OF_RESOURCES  The request could not be completed\r
                                due to a lack of resources.\r
  @retval EFI_DEVICE_ERROR      The request was not completed because\r
                                a failure reflected in the Host Status Register bit.\r
  @retval EFI_INVALID_PARAMETER Operation is not defined in EFI_SMBUS_OPERATION.\r
                                Or Length/Buffer is NULL for operations except for EfiSmbusQuickRead and\r
                                EfiSmbusQuickWrite. Or Length is outside the range of valid values.\r
  @retval EFI_UNSUPPORTED       The SMBus operation or PEC is not supported.\r
  @retval EFI_BUFFER_TOO_SMALL  Buffer is not sufficient for this operation.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_SMBUS2_PPI_EXECUTE_OPERATION)(\r
  IN CONST  EFI_PEI_SMBUS2_PPI        *This,\r
  IN        EFI_SMBUS_DEVICE_ADDRESS  SlaveAddress,\r
  IN        EFI_SMBUS_DEVICE_COMMAND  Command,\r
  IN        EFI_SMBUS_OPERATION       Operation,\r
  IN        BOOLEAN                   PecCheck,\r
  IN OUT    UINTN                     *Length,\r
  IN OUT    VOID                      *Buffer\r
);\r
\r
/**\r
  The ArpDevice() function enumerates the entire bus or enumerates a specific \r
  device that is identified by SmbusUdid. \r
\r
  @param  This           A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
  @param  ArpAll         A Boolean expression that indicates if the host drivers need\r
                         to enumerate all the devices or enumerate only the device that is identified\r
                         by SmbusUdid. If ArpAll is TRUE, SmbusUdid and SlaveAddress are optional.\r
                         If ArpAll is FALSE, ArpDevice will enumerate SmbusUdid and the address\r
                         will be at SlaveAddress.\r
  @param  SmbusUdid      The targeted SMBus Unique Device Identifier (UDID).\r
                         The UDID may not exist for SMBus devices with fixed addresses.\r
  @param  SlaveAddress   The new SMBus address for the slave device for\r
                         which the operation is targeted.\r
\r
  @retval EFI_SUCCESS           The SMBus slave device address was set.\r
  @retval EFI_INVALID_PARAMETER SlaveAddress is NULL.\r
  @retval EFI_OUT_OF_RESOURCES  The request could not be completed\r
                                due to a lack of resources.\r
  @retval EFI_TIMEOUT           The SMBus slave device did not respond.\r
  @retval EFI_DEVICE_ERROR      The request was not completed because the transaction failed.\r
  @retval EFI_UNSUPPORTED       ArpDevice, GetArpMap, and Notify are not implemented by this PEIM.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_SMBUS2_PPI_ARP_DEVICE)(\r
  IN CONST  EFI_PEI_SMBUS2_PPI        *This,\r
  IN        BOOLEAN                   ArpAll,\r
  IN        EFI_SMBUS_UDID            *SmbusUdid,   OPTIONAL\r
  IN OUT    EFI_SMBUS_DEVICE_ADDRESS  *SlaveAddress OPTIONAL\r
);\r
\r
\r
typedef struct {\r
  ///\r
  /// The SMBUS hardware address to which the SMBUS device is preassigned or\r
  /// allocated. Type EFI_SMBUS_DEVICE_ADDRESS is defined in EFI_PEI_SMBUS2_PPI.Execute().\r
  ///\r
  EFI_SMBUS_DEVICE_ADDRESS  SmbusDeviceAddress;\r
  ///\r
  /// The SMBUS Unique Device Identifier (UDID) as defined in EFI_SMBUS_UDID.\r
  /// Type EFI_SMBUS_UDID is defined in EFI_PEI_SMBUS2_PPI.ArpDevice().\r
  ///\r
  EFI_SMBUS_UDID            SmbusDeviceUdid;\r
} EFI_SMBUS_DEVICE_MAP;\r
\r
/**\r
  The GetArpMap() function returns the mapping of all the SMBus devices \r
  that are enumerated by the SMBus host driver. \r
\r
  @param  This           A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
  @param  Length         Size of the buffer that contains the SMBus device map.\r
  @param  SmbusDeviceMap The pointer to the device map as enumerated\r
                         by the SMBus controller driver.\r
\r
  @retval EFI_SUCCESS           The device map was returned correctly in the buffer.\r
  @retval EFI_UNSUPPORTED       ArpDevice, GetArpMap, and Notify are not implemented by this PEIM.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_SMBUS2_PPI_GET_ARP_MAP)(\r
  IN CONST  EFI_PEI_SMBUS2_PPI    *This,\r
  IN OUT    UINTN                 *Length,\r
  IN OUT    EFI_SMBUS_DEVICE_MAP  **SmbusDeviceMap\r
);\r
\r
/**\r
  CallBack function can be registered in EFI_PEI_SMBUS2_PPI_NOTIFY.\r
\r
  @param  This           A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
  @param  SlaveAddress   The SMBUS hardware address to which the SMBUS\r
                         device is preassigned or allocated.\r
  @param  Data           Data of the SMBus host notify command that\r
                         the caller wants to be called.\r
\r
  @retval EFI_SUCCESS           NotifyFunction has been registered.\r
  @retval EFI_UNSUPPORTED       ArpDevice, GetArpMap, and Notify are not\r
                                implemented by this PEIM.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_SMBUS_NOTIFY2_FUNCTION)(\r
  IN CONST  EFI_PEI_SMBUS2_PPI        *SmbusPpi,\r
  IN        EFI_SMBUS_DEVICE_ADDRESS  SlaveAddress,\r
  IN        UINTN                     Data\r
);\r
\r
/**\r
  The Notify() function registers all the callback functions to allow the \r
  bus driver to call these functions when the SlaveAddress/Data pair happens.\r
\r
  @param  This           A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
  @param  SlaveAddress   Address that the host controller detects as\r
                         sending a message and calls all the registered functions.\r
  @param  Data           Data that the host controller detects as sending a message\r
                         and calls all the registered functions.\r
  @param  NotifyFunction The function to call when the bus driver\r
                         detects the SlaveAddress and Data pair.\r
\r
  @retval EFI_SUCCESS     NotifyFunction has been registered.\r
  @retval EFI_UNSUPPORTED ArpDevice, GetArpMap, and Notify are not\r
                          implemented by this PEIM.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_PEI_SMBUS2_PPI_NOTIFY)(\r
  IN CONST EFI_PEI_SMBUS2_PPI              *This,\r
  IN       EFI_SMBUS_DEVICE_ADDRESS        SlaveAddress,\r
  IN       UINTN                           Data,\r
  IN       EFI_PEI_SMBUS_NOTIFY2_FUNCTION  NotifyFunction\r
);\r
\r
///\r
///  Provides the basic I/O interfaces that a PEIM uses to access \r
///  its SMBus controller and the slave devices attached to it.\r
///\r
struct _EFI_PEI_SMBUS2_PPI {\r
  ///\r
  /// Executes the SMBus operation to an SMBus slave device.\r
  ///\r
  EFI_PEI_SMBUS2_PPI_EXECUTE_OPERATION  Execute;\r
  ///\r
  /// Allows an SMBus 2.0 device(s) to be Address Resolution Protocol (ARP).\r
  ///\r
  EFI_PEI_SMBUS2_PPI_ARP_DEVICE         ArpDevice;\r
  ///\r
  /// Allows a PEIM to retrieve the address that was allocated by the SMBus \r
  /// host controller during enumeration/ARP.\r
  ///\r
  EFI_PEI_SMBUS2_PPI_GET_ARP_MAP        GetArpMap;\r
  ///\r
  /// Allows a driver to register for a callback to the SMBus host \r
  /// controller driver when the bus issues a notification to the bus controller PEIM.\r
  ///\r
  EFI_PEI_SMBUS2_PPI_NOTIFY             Notify;\r
  ///\r
  /// Identifier which uniquely identifies this SMBus controller in a system.\r
  ///\r
  EFI_GUID                              Identifier;\r
};\r
\r
extern EFI_GUID gEfiPeiSmbus2PpiGuid;\r
\r
#endif\r
Commit	Line	Data
5879b875	1	/** @file\r
5879b875	2	This file declares Smbus2 PPI.\r
d7132512 LG	3	This PPI provides the basic I/O interfaces that a PEIM uses to access its \r
d7132512 LG	4	SMBus controller and the slave devices attached to it.\r
5879b875	5	\r
d7132512	6	Copyright (c) 2006 - 2008, Intel Corporation \r
5879b875	7	All rights reserved. This program and the accompanying materials \r
	8	are licensed and made available under the terms and conditions of the BSD License \r
	9	which accompanies this distribution. The full text of the license may be found at \r
	10	http://opensource.org/licenses/bsd-license.php \r
	11	\r
	12	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	13	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	14	\r
5879b875	15	@par Revision Reference:\r
	16	This PPI is defined in PI.\r
	17	Version 1.00\r
	18	\r
	19	**/\r
	20	\r
d7132512 LG	21	#ifndef __PEI_SMBUS2_PPI_H__\r
d7132512 LG	22	#define __PEI_SMBUS2_PPI_H__\r
11227adb	23	\r
01aef47b	24	#include <PiPei.h>\r
5879b875	25	#include <IndustryStandard/SmBus.h>\r
	26	\r
	27	#define EFI_PEI_SMBUS2_PPI_GUID \\r
00edb218	28	{ 0x9ca93627, 0xb65b, 0x4324, { 0xa2, 0x2, 0xc0, 0xb4, 0x61, 0x76, 0x45, 0x43 } }\r
5879b875	29	\r
	30	\r
	31	typedef struct _EFI_PEI_SMBUS2_PPI EFI_PEI_SMBUS2_PPI;\r
	32	\r
	33	//\r
	34	// EFI_SMBUS_DEVICE_COMMAND\r
	35	//\r
00edb218	36	typedef UINTN EFI_SMBUS_DEVICE_COMMAND;\r
5879b875	37	\r
	38	\r
	39	/*\r
d7132512 LG	40	Executes an SMBus operation to an SMBus controller. Returns when either \r
d7132512 LG	41	the command has been executed or an error is encountered in doing the operation.\r
5879b875	42	\r
00edb218 A	43	@param This A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
	44	@param SlaveAddress The SMBUS hardware address to which the SMBUS device is preassigned or\r
	45	allocated.\r
	46	@param Command This command is transmitted by the SMBus host controller to the SMBus slave \r
	47	device and the interpretation is SMBus slave device specific. \r
	48	It can mean the offset to a list of functions inside \r
	49	an SMBus slave device. Not all operations or slave devices support\r
	50	this command's registers.\r
00edb218 A	51	@param Operation Signifies which particular SMBus hardware protocol instance that it \r
	52	will use to execute the SMBus transactions. \r
	53	This SMBus hardware protocol is defined by the System Management Bus (SMBus) \r
	54	Specification and is not related to UEFI.\r
00edb218	55	@param PecCheck Defines if Packet Error Code (PEC) checking is required for this operation.\r
00edb218 A	56	@param Length Signifies the number of bytes that this operation will do. \r
	57	The maximum number of bytes can be revision specific and operation specific.\r
	58	This parameter will contain the actual number of bytes that are executed\r
	59	for this operation. Not all operations require this argument.\r
00edb218 A	60	@param Buffer Contains the value of data to execute to the SMBus slave device. \r
	61	Not all operations require this argument. \r
	62	The length of this buffer is identified by Length.\r
5879b875	63	\r
	64	\r
	65	@retval EFI_SUCCESS The last data that was returned from the access\r
	66	matched the poll exit criteria.\r
	67	@retval EFI_CRC_ERROR The checksum is not correct (PEC is incorrect)\r
	68	@retval EFI_TIMEOUT Timeout expired before the operation was completed.\r
	69	Timeout is determined by the SMBus host controller device.\r
	70	@retval EFI_OUT_OF_RESOURCES The request could not be completed\r
	71	due to a lack of resources.\r
	72	@retval EFI_DEVICE_ERROR The request was not completed because\r
	73	a failure reflected in the Host Status Register bit.\r
	74	@retval EFI_INVALID_PARAMETER Operation is not defined in EFI_SMBUS_OPERATION.\r
	75	Or Length/Buffer is NULL for operations except for EfiSmbusQuickRead and\r
d7132512	76	EfiSmbusQuickWrite. Or Length is outside the range of valid values.\r
5879b875	77	@retval EFI_UNSUPPORTED The SMBus operation or PEC is not supported.\r
	78	@retval EFI_BUFFER_TOO_SMALL Buffer is not sufficient for this operation.\r
	79	\r
	80	**/\r
	81	typedef\r
	82	EFI_STATUS\r
8b13229b	83	(EFIAPI *EFI_PEI_SMBUS2_PPI_EXECUTE_OPERATION)(\r
00edb218	84	IN CONST EFI_PEI_SMBUS2_PPI *This,\r
11227adb	85	IN EFI_SMBUS_DEVICE_ADDRESS SlaveAddress,\r
	86	IN EFI_SMBUS_DEVICE_COMMAND Command,\r
	87	IN EFI_SMBUS_OPERATION Operation,\r
	88	IN BOOLEAN PecCheck,\r
00edb218 A	89	IN OUT UINTN *Length,\r
00edb218 A	90	IN OUT VOID *Buffer\r
5879b875	91	);\r
5879b875	92	\r
5879b875	93	/**\r
	94	The ArpDevice() function enumerates the entire bus or enumerates a specific \r
	95	device that is identified by SmbusUdid. \r
	96	\r
d7132512	97	@param This A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
5879b875	98	@param ArpAll A Boolean expression that indicates if the host drivers need\r
	99	to enumerate all the devices or enumerate only the device that is identified\r
	100	by SmbusUdid. If ArpAll is TRUE, SmbusUdid and SlaveAddress are optional.\r
	101	If ArpAll is FALSE, ArpDevice will enumerate SmbusUdid and the address\r
	102	will be at SlaveAddress.\r
	103	@param SmbusUdid The targeted SMBus Unique Device Identifier (UDID).\r
	104	The UDID may not exist for SMBus devices with fixed addresses.\r
	105	@param SlaveAddress The new SMBus address for the slave device for\r
	106	which the operation is targeted.\r
	107	\r
	108	@retval EFI_SUCCESS The SMBus slave device address was set.\r
	109	@retval EFI_INVALID_PARAMETER SlaveAddress is NULL.\r
	110	@retval EFI_OUT_OF_RESOURCES The request could not be completed\r
	111	due to a lack of resources.\r
	112	@retval EFI_TIMEOUT The SMBus slave device did not respond.\r
	113	@retval EFI_DEVICE_ERROR The request was not completed because the transaction failed.\r
d7132512	114	@retval EFI_UNSUPPORTED ArpDevice, GetArpMap, and Notify are not implemented by this PEIM.\r
5879b875	115	\r
	116	**/\r
	117	typedef\r
	118	EFI_STATUS\r
8b13229b	119	(EFIAPI *EFI_PEI_SMBUS2_PPI_ARP_DEVICE)(\r
00edb218	120	IN CONST EFI_PEI_SMBUS2_PPI *This,\r
11227adb	121	IN BOOLEAN ArpAll,\r
11227adb	122	IN EFI_SMBUS_UDID *SmbusUdid, OPTIONAL\r
00edb218	123	IN OUT EFI_SMBUS_DEVICE_ADDRESS *SlaveAddress OPTIONAL\r
5879b875	124	);\r
	125	\r
	126	\r
	127	typedef struct {\r
11227adb	128	///\r
	129	/// The SMBUS hardware address to which the SMBUS device is preassigned or\r
	130	/// allocated. Type EFI_SMBUS_DEVICE_ADDRESS is defined in EFI_PEI_SMBUS2_PPI.Execute().\r
	131	///\r
5879b875	132	EFI_SMBUS_DEVICE_ADDRESS SmbusDeviceAddress;\r
11227adb	133	///\r
	134	/// The SMBUS Unique Device Identifier (UDID) as defined in EFI_SMBUS_UDID.\r
	135	/// Type EFI_SMBUS_UDID is defined in EFI_PEI_SMBUS2_PPI.ArpDevice().\r
	136	///\r
5879b875	137	EFI_SMBUS_UDID SmbusDeviceUdid;\r
	138	} EFI_SMBUS_DEVICE_MAP;\r
	139	\r
	140	/**\r
	141	The GetArpMap() function returns the mapping of all the SMBus devices \r
	142	that are enumerated by the SMBus host driver. \r
	143	\r
d7132512	144	@param This A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
5879b875	145	@param Length Size of the buffer that contains the SMBus device map.\r
	146	@param SmbusDeviceMap The pointer to the device map as enumerated\r
	147	by the SMBus controller driver.\r
	148	\r
	149	@retval EFI_SUCCESS The device map was returned correctly in the buffer.\r
d7132512	150	@retval EFI_UNSUPPORTED ArpDevice, GetArpMap, and Notify are not implemented by this PEIM.\r
5879b875	151	\r
	152	**/\r
	153	typedef\r
	154	EFI_STATUS\r
8b13229b	155	(EFIAPI *EFI_PEI_SMBUS2_PPI_GET_ARP_MAP)(\r
00edb218 A	156	IN CONST EFI_PEI_SMBUS2_PPI *This,\r
	157	IN OUT UINTN *Length,\r
	158	IN OUT EFI_SMBUS_DEVICE_MAP **SmbusDeviceMap\r
5879b875	159	);\r
5879b875	160	\r
d7132512 LG	161	/**\r
	162	CallBack function can be registered in EFI_PEI_SMBUS2_PPI_NOTIFY.\r
	163	\r
	164	@param This A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
	165	@param SlaveAddress The SMBUS hardware address to which the SMBUS\r
	166	device is preassigned or allocated.\r
	167	@param Data Data of the SMBus host notify command that\r
	168	the caller wants to be called.\r
	169	\r
11227adb	170	@retval EFI_SUCCESS NotifyFunction has been registered.\r
	171	@retval EFI_UNSUPPORTED ArpDevice, GetArpMap, and Notify are not\r
	172	implemented by this PEIM.\r
	173	\r
d7132512 LG	174	**/\r
	175	typedef\r
	176	EFI_STATUS\r
	177	(EFIAPI *EFI_PEI_SMBUS_NOTIFY2_FUNCTION)(\r
	178	IN CONST EFI_PEI_SMBUS2_PPI *SmbusPpi,\r
11227adb	179	IN EFI_SMBUS_DEVICE_ADDRESS SlaveAddress,\r
11227adb	180	IN UINTN Data\r
d7132512	181	);\r
5879b875	182	\r
	183	/**\r
	184	The Notify() function registers all the callback functions to allow the \r
	185	bus driver to call these functions when the SlaveAddress/Data pair happens.\r
	186	\r
d7132512	187	@param This A pointer to the EFI_PEI_SMBUS2_PPI instance.\r
5879b875	188	@param SlaveAddress Address that the host controller detects as\r
	189	sending a message and calls all the registered functions.\r
	190	@param Data Data that the host controller detects as sending a message\r
	191	and calls all the registered functions.\r
	192	@param NotifyFunction The function to call when the bus driver\r
	193	detects the SlaveAddress and Data pair.\r
	194	\r
d7132512 LG	195	@retval EFI_SUCCESS NotifyFunction has been registered.\r
	196	@retval EFI_UNSUPPORTED ArpDevice, GetArpMap, and Notify are not\r
	197	implemented by this PEIM.\r
5879b875	198	**/\r
	199	typedef\r
	200	EFI_STATUS\r
8b13229b	201	(EFIAPI *EFI_PEI_SMBUS2_PPI_NOTIFY)(\r
11227adb	202	IN CONST EFI_PEI_SMBUS2_PPI *This,\r
	203	IN EFI_SMBUS_DEVICE_ADDRESS SlaveAddress,\r
	204	IN UINTN Data,\r
	205	IN EFI_PEI_SMBUS_NOTIFY2_FUNCTION NotifyFunction\r
5879b875	206	);\r
5879b875	207	\r
11227adb	208	///\r
	209	/// Provides the basic I/O interfaces that a PEIM uses to access \r
	210	/// its SMBus controller and the slave devices attached to it.\r
	211	///\r
5879b875	212	struct _EFI_PEI_SMBUS2_PPI {\r
11227adb	213	///\r
	214	/// Executes the SMBus operation to an SMBus slave device.\r
	215	///\r
00edb218	216	EFI_PEI_SMBUS2_PPI_EXECUTE_OPERATION Execute;\r
11227adb	217	///\r
	218	/// Allows an SMBus 2.0 device(s) to be Address Resolution Protocol (ARP).\r
	219	///\r
00edb218	220	EFI_PEI_SMBUS2_PPI_ARP_DEVICE ArpDevice;\r
11227adb	221	///\r
	222	/// Allows a PEIM to retrieve the address that was allocated by the SMBus \r
	223	/// host controller during enumeration/ARP.\r
	224	///\r
00edb218	225	EFI_PEI_SMBUS2_PPI_GET_ARP_MAP GetArpMap;\r
11227adb	226	///\r
	227	/// Allows a driver to register for a callback to the SMBus host \r
	228	/// controller driver when the bus issues a notification to the bus controller PEIM.\r
	229	///\r
00edb218	230	EFI_PEI_SMBUS2_PPI_NOTIFY Notify;\r
11227adb	231	///\r
	232	/// Identifier which uniquely identifies this SMBus controller in a system.\r
	233	///\r
00edb218	234	EFI_GUID Identifier;\r
5879b875	235	};\r
	236	\r
	237	extern EFI_GUID gEfiPeiSmbus2PpiGuid;\r
	238	\r
	239	#endif\r