[mirror_edk2.git] / MdeModulePkg / Bus / Usb / UsbBusPei / UsbPeim.h

/** @file\r
Usb Peim definition.\r
\r
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved. <BR>\r
\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions\r
of the BSD License which accompanies this distribution.  The\r
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
**/\r
\r
#ifndef _PEI_USB_PEIM_H_\r
#define _PEI_USB_PEIM_H_\r
\r
\r
#include <PiPei.h>\r
\r
#include <Ppi/UsbHostController.h>\r
#include <Ppi/Usb2HostController.h>\r
#include <Ppi/UsbIo.h>\r
\r
#include <Library/DebugLib.h>\r
#include <Library/PeimEntryPoint.h>\r
#include <Library/PeiServicesLib.h>\r
#include <Library/BaseMemoryLib.h>\r
#include <Library/TimerLib.h>\r
#include <Library/PcdLib.h>\r
\r
#include <IndustryStandard/Usb.h>\r
\r
//\r
// A common header for usb standard descriptor.\r
// Each stand descriptor has a length and type.\r
//\r
#pragma pack(1)\r
typedef struct {\r
  UINT8                   Len;\r
  UINT8                   Type;\r
} USB_DESC_HEAD;\r
#pragma pack()\r
\r
#define MAX_INTERFACE             8\r
#define MAX_ENDPOINT              16\r
\r
#define PEI_USB_DEVICE_SIGNATURE  SIGNATURE_32 ('U', 's', 'b', 'D')\r
typedef struct {\r
  UINTN                         Signature;\r
  PEI_USB_IO_PPI                UsbIoPpi;\r
  EFI_PEI_PPI_DESCRIPTOR        UsbIoPpiList;\r
  UINT16                        MaxPacketSize0;\r
  UINT16                        DataToggle;\r
  UINT8                         DeviceAddress;\r
  UINT8                         DeviceSpeed;\r
  UINT8                         IsHub;\r
  UINT8                         DownStreamPortNo;\r
  UINTN                         AllocateAddress;\r
  PEI_USB_HOST_CONTROLLER_PPI   *UsbHcPpi;\r
  PEI_USB2_HOST_CONTROLLER_PPI  *Usb2HcPpi;\r
  UINT8                         ConfigurationData[1024];\r
  EFI_USB_CONFIG_DESCRIPTOR     *ConfigDesc;\r
  EFI_USB_INTERFACE_DESCRIPTOR  *InterfaceDesc;\r
  EFI_USB_INTERFACE_DESCRIPTOR  *InterfaceDescList[MAX_INTERFACE];\r
  EFI_USB_ENDPOINT_DESCRIPTOR   *EndpointDesc[MAX_ENDPOINT];\r
  EFI_USB_ENDPOINT_DESCRIPTOR   *EndpointDescList[MAX_INTERFACE][MAX_ENDPOINT];\r
  EFI_USB2_HC_TRANSACTION_TRANSLATOR Translator;\r
  UINT8                          Tier;\r
} PEI_USB_DEVICE;\r
\r
#define PEI_USB_DEVICE_FROM_THIS(a) CR (a, PEI_USB_DEVICE, UsbIoPpi, PEI_USB_DEVICE_SIGNATURE)\r
\r
#define USB_BIT_IS_SET(Data, Bit)   ((BOOLEAN)(((Data) & (Bit)) == (Bit)))\r
\r
#define USB_BUS_1_MILLISECOND       1000\r
\r
//\r
// Wait for port reset, refers to specification\r
// [USB20-7.1.7.5, it says 10ms for hub and 50ms for\r
// root hub]\r
//\r
// According to USB2.0, Chapter 11.5.1.5 Resetting,\r
// the worst case for TDRST is 20ms\r
//\r
#define USB_SET_PORT_RESET_STALL        (20 * USB_BUS_1_MILLISECOND)\r
#define USB_SET_ROOT_PORT_RESET_STALL   (50 * USB_BUS_1_MILLISECOND)\r
\r
//\r
// Wait for clear roothub port reset, set by experience\r
//\r
#define USB_CLR_ROOT_PORT_RESET_STALL   (20 * USB_BUS_1_MILLISECOND)\r
\r
//\r
// Wait for port statue reg change, set by experience\r
//\r
#define USB_WAIT_PORT_STS_CHANGE_STALL  (100)\r
\r
//\r
// Host software return timeout if port status doesn't change\r
// after 500ms(LOOP * STALL = 5000 * 0.1ms), set by experience\r
//\r
#define USB_WAIT_PORT_STS_CHANGE_LOOP   5000\r
\r
//\r
// Wait for hub port power-on, refers to specification\r
// [USB20-11.23.2]\r
//\r
#define USB_SET_PORT_POWER_STALL        (2 * USB_BUS_1_MILLISECOND)\r
\r
//\r
// Wait for set device address, refers to specification\r
// [USB20-9.2.6.3, it says 2ms]\r
//\r
#define USB_SET_DEVICE_ADDRESS_STALL    (2 * USB_BUS_1_MILLISECOND)\r
\r
//\r
// Wait for get configuration descriptor, set by experience\r
//\r
#define USB_GET_CONFIG_DESCRIPTOR_STALL (1 * USB_BUS_1_MILLISECOND)\r
\r
/**\r
  Submits control transfer to a target USB device.\r
\r
  @param  PeiServices            The pointer of EFI_PEI_SERVICES.\r
  @param  This                   The pointer of PEI_USB_IO_PPI.\r
  @param  Request                USB device request to send.\r
  @param  Direction              Specifies the data direction for the data stage.\r
  @param  Timeout                Indicates the maximum timeout, in millisecond. If Timeout\r
                                 is 0, then the caller must wait for the function to be\r
                                 completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.\r
  @param  Data                   Data buffer to be transmitted or received from USB device.\r
  @param  DataLength             The size (in bytes) of the data buffer.\r
\r
  @retval EFI_SUCCESS            Transfer was completed successfully.\r
  @retval EFI_OUT_OF_RESOURCES   The transfer failed due to lack of resources.\r
  @retval EFI_INVALID_PARAMETER  Some parameters are invalid.\r
  @retval EFI_TIMEOUT            Transfer failed due to timeout.\r
  @retval EFI_DEVICE_ERROR       Transfer failed due to host controller or device error.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiUsbControlTransfer (\r
  IN     EFI_PEI_SERVICES          **PeiServices,\r
  IN     PEI_USB_IO_PPI            *This,\r
  IN     EFI_USB_DEVICE_REQUEST    *Request,\r
  IN     EFI_USB_DATA_DIRECTION    Direction,\r
  IN     UINT32                    Timeout,\r
  IN OUT VOID                      *Data,      OPTIONAL\r
  IN     UINTN                     DataLength  OPTIONAL\r
  );\r
\r
/**\r
  Submits bulk transfer to a bulk endpoint of a USB device.\r
\r
  @param  PeiServices           The pointer of EFI_PEI_SERVICES.\r
  @param  This                  The pointer of PEI_USB_IO_PPI.\r
  @param  DeviceEndpoint        Endpoint number and its direction in bit 7.\r
  @param  Data                  A pointer to the buffer of data to transmit\r
                                from or receive into.\r
  @param  DataLength            The lenght of the data buffer.\r
  @param  Timeout               Indicates the maximum time, in millisecond, which the\r
                                transfer is allowed to complete. If Timeout is 0, then\r
                                the caller must wait for the function to be completed\r
                                until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.\r
\r
  @retval EFI_SUCCESS           The transfer was completed successfully.\r
  @retval EFI_OUT_OF_RESOURCES  The transfer failed due to lack of resource.\r
  @retval EFI_INVALID_PARAMETER Parameters are invalid.\r
  @retval EFI_TIMEOUT           The transfer failed due to timeout.\r
  @retval EFI_DEVICE_ERROR      The transfer failed due to host controller error.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiUsbBulkTransfer (\r
  IN     EFI_PEI_SERVICES    **PeiServices,\r
  IN     PEI_USB_IO_PPI      *This,\r
  IN     UINT8               DeviceEndpoint,\r
  IN OUT VOID                *Data,\r
  IN OUT UINTN               *DataLength,\r
  IN     UINTN               Timeout\r
  );\r
\r
/**\r
  Get the usb interface descriptor.\r
\r
  @param  PeiServices          General-purpose services that are available to every PEIM.\r
  @param  This                 Indicates the PEI_USB_IO_PPI instance.\r
  @param  InterfaceDescriptor  Request interface descriptor.\r
\r
\r
  @retval EFI_SUCCESS          Usb interface descriptor is obtained successfully.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiUsbGetInterfaceDescriptor (\r
  IN  EFI_PEI_SERVICES                **PeiServices,\r
  IN  PEI_USB_IO_PPI                  *This,\r
  OUT EFI_USB_INTERFACE_DESCRIPTOR    **InterfaceDescriptor\r
  );\r
\r
/**\r
  Get the usb endpoint descriptor.\r
\r
  @param  PeiServices          General-purpose services that are available to every PEIM.\r
  @param  This                 Indicates the PEI_USB_IO_PPI instance.\r
  @param  EndpointIndex        The valid index of the specified endpoint.\r
  @param  EndpointDescriptor   Request endpoint descriptor.\r
\r
  @retval EFI_SUCCESS       Usb endpoint descriptor is obtained successfully.\r
  @retval EFI_NOT_FOUND     Usb endpoint descriptor is NOT found.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiUsbGetEndpointDescriptor (\r
  IN  EFI_PEI_SERVICES               **PeiServices,\r
  IN  PEI_USB_IO_PPI                 *This,\r
  IN  UINT8                          EndpointIndex,\r
  OUT EFI_USB_ENDPOINT_DESCRIPTOR    **EndpointDescriptor\r
  );\r
\r
/**\r
  Reset the port and re-configure the usb device.\r
\r
  @param  PeiServices    General-purpose services that are available to every PEIM.\r
  @param  This           Indicates the PEI_USB_IO_PPI instance.\r
\r
  @retval EFI_SUCCESS    Usb device is reset and configured successfully.\r
  @retval Others         Other failure occurs.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
PeiUsbPortReset (\r
  IN EFI_PEI_SERVICES    **PeiServices,\r
  IN PEI_USB_IO_PPI      *This\r
  );\r
\r
/**\r
  Send reset signal over the given root hub port.\r
\r
  @param  PeiServices       Describes the list of possible PEI Services.\r
  @param  UsbHcPpi          The pointer of PEI_USB_HOST_CONTROLLER_PPI instance.\r
  @param  Usb2HcPpi         The pointer of PEI_USB2_HOST_CONTROLLER_PPI instance.\r
  @param  PortNum           The port to be reset.\r
  @param  RetryIndex        The retry times.\r
\r
**/\r
VOID\r
ResetRootPort (\r
  IN EFI_PEI_SERVICES               **PeiServices,\r
  IN PEI_USB_HOST_CONTROLLER_PPI    *UsbHcPpi,\r
  IN PEI_USB2_HOST_CONTROLLER_PPI   *Usb2HcPpi,\r
  IN UINT8                          PortNum,\r
  IN UINT8                          RetryIndex\r
  );\r
\r
#endif\r
Commit	Line	Data
4b1bf81c	1	/** @file\r
	2	Usb Peim definition.\r
	3	\r
d1102dba LG	4	Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved. <BR>\r
d1102dba LG	5	\r
4b1bf81c	6	This program and the accompanying materials\r
	7	are licensed and made available under the terms and conditions\r
	8	of the BSD License which accompanies this distribution. The\r
	9	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
	15	**/\r
	16	\r
	17	#ifndef _PEI_USB_PEIM_H_\r
	18	#define _PEI_USB_PEIM_H_\r
	19	\r
	20	\r
	21	#include <PiPei.h>\r
	22	\r
	23	#include <Ppi/UsbHostController.h>\r
	24	#include <Ppi/Usb2HostController.h>\r
	25	#include <Ppi/UsbIo.h>\r
	26	\r
	27	#include <Library/DebugLib.h>\r
	28	#include <Library/PeimEntryPoint.h>\r
	29	#include <Library/PeiServicesLib.h>\r
	30	#include <Library/BaseMemoryLib.h>\r
	31	#include <Library/TimerLib.h>\r
	32	#include <Library/PcdLib.h>\r
	33	\r
	34	#include <IndustryStandard/Usb.h>\r
	35	\r
c96de1db RN	36	//\r
	37	// A common header for usb standard descriptor.\r
	38	// Each stand descriptor has a length and type.\r
	39	//\r
	40	#pragma pack(1)\r
	41	typedef struct {\r
	42	UINT8 Len;\r
	43	UINT8 Type;\r
	44	} USB_DESC_HEAD;\r
	45	#pragma pack()\r
	46	\r
8a718ba9	47	#define MAX_INTERFACE 8\r
4b1bf81c	48	#define MAX_ENDPOINT 16\r
4b1bf81c	49	\r
4b1bf81c	50	#define PEI_USB_DEVICE_SIGNATURE SIGNATURE_32 ('U', 's', 'b', 'D')\r
	51	typedef struct {\r
	52	UINTN Signature;\r
	53	PEI_USB_IO_PPI UsbIoPpi;\r
	54	EFI_PEI_PPI_DESCRIPTOR UsbIoPpiList;\r
d987459f SZ	55	UINT16 MaxPacketSize0;\r
d987459f SZ	56	UINT16 DataToggle;\r
4b1bf81c	57	UINT8 DeviceAddress;\r
4b1bf81c	58	UINT8 DeviceSpeed;\r
4b1bf81c	59	UINT8 IsHub;\r
4b1bf81c	60	UINT8 DownStreamPortNo;\r
4b1bf81c	61	UINTN AllocateAddress;\r
	62	PEI_USB_HOST_CONTROLLER_PPI *UsbHcPpi;\r
	63	PEI_USB2_HOST_CONTROLLER_PPI *Usb2HcPpi;\r
	64	UINT8 ConfigurationData[1024];\r
	65	EFI_USB_CONFIG_DESCRIPTOR *ConfigDesc;\r
	66	EFI_USB_INTERFACE_DESCRIPTOR *InterfaceDesc;\r
8a718ba9	67	EFI_USB_INTERFACE_DESCRIPTOR *InterfaceDescList[MAX_INTERFACE];\r
4b1bf81c	68	EFI_USB_ENDPOINT_DESCRIPTOR *EndpointDesc[MAX_ENDPOINT];\r
8a718ba9	69	EFI_USB_ENDPOINT_DESCRIPTOR *EndpointDescList[MAX_INTERFACE][MAX_ENDPOINT];\r
d987459f SZ	70	EFI_USB2_HC_TRANSACTION_TRANSLATOR Translator;\r
d987459f SZ	71	UINT8 Tier;\r
4b1bf81c	72	} PEI_USB_DEVICE;\r
	73	\r
	74	#define PEI_USB_DEVICE_FROM_THIS(a) CR (a, PEI_USB_DEVICE, UsbIoPpi, PEI_USB_DEVICE_SIGNATURE)\r
	75	\r
d987459f SZ	76	#define USB_BIT_IS_SET(Data, Bit) ((BOOLEAN)(((Data) & (Bit)) == (Bit)))\r
	77	\r
	78	#define USB_BUS_1_MILLISECOND 1000\r
	79	\r
	80	//\r
	81	// Wait for port reset, refers to specification\r
	82	// [USB20-7.1.7.5, it says 10ms for hub and 50ms for\r
	83	// root hub]\r
	84	//\r
	85	// According to USB2.0, Chapter 11.5.1.5 Resetting,\r
	86	// the worst case for TDRST is 20ms\r
	87	//\r
	88	#define USB_SET_PORT_RESET_STALL (20 * USB_BUS_1_MILLISECOND)\r
	89	#define USB_SET_ROOT_PORT_RESET_STALL (50 * USB_BUS_1_MILLISECOND)\r
	90	\r
	91	//\r
	92	// Wait for clear roothub port reset, set by experience\r
	93	//\r
	94	#define USB_CLR_ROOT_PORT_RESET_STALL (20 * USB_BUS_1_MILLISECOND)\r
	95	\r
	96	//\r
	97	// Wait for port statue reg change, set by experience\r
	98	//\r
	99	#define USB_WAIT_PORT_STS_CHANGE_STALL (100)\r
	100	\r
	101	//\r
d1102dba	102	// Host software return timeout if port status doesn't change\r
d987459f SZ	103	// after 500ms(LOOP * STALL = 5000 * 0.1ms), set by experience\r
	104	//\r
	105	#define USB_WAIT_PORT_STS_CHANGE_LOOP 5000\r
	106	\r
	107	//\r
	108	// Wait for hub port power-on, refers to specification\r
	109	// [USB20-11.23.2]\r
	110	//\r
	111	#define USB_SET_PORT_POWER_STALL (2 * USB_BUS_1_MILLISECOND)\r
4b1bf81c	112	\r
04910ceb SZ	113	//\r
	114	// Wait for set device address, refers to specification\r
	115	// [USB20-9.2.6.3, it says 2ms]\r
	116	//\r
	117	#define USB_SET_DEVICE_ADDRESS_STALL (2 * USB_BUS_1_MILLISECOND)\r
	118	\r
	119	//\r
	120	// Wait for get configuration descriptor, set by experience\r
	121	//\r
	122	#define USB_GET_CONFIG_DESCRIPTOR_STALL (1 * USB_BUS_1_MILLISECOND)\r
	123	\r
4b1bf81c	124	/**\r
4b1bf81c	125	Submits control transfer to a target USB device.\r
d1102dba	126	\r
4b1bf81c	127	@param PeiServices The pointer of EFI_PEI_SERVICES.\r
	128	@param This The pointer of PEI_USB_IO_PPI.\r
	129	@param Request USB device request to send.\r
	130	@param Direction Specifies the data direction for the data stage.\r
ca243131 FT	131	@param Timeout Indicates the maximum timeout, in millisecond. If Timeout\r
	132	is 0, then the caller must wait for the function to be\r
	133	completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.\r
4b1bf81c	134	@param Data Data buffer to be transmitted or received from USB device.\r
	135	@param DataLength The size (in bytes) of the data buffer.\r
	136	\r
	137	@retval EFI_SUCCESS Transfer was completed successfully.\r
	138	@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resources.\r
	139	@retval EFI_INVALID_PARAMETER Some parameters are invalid.\r
	140	@retval EFI_TIMEOUT Transfer failed due to timeout.\r
	141	@retval EFI_DEVICE_ERROR Transfer failed due to host controller or device error.\r
	142	\r
	143	**/\r
	144	EFI_STATUS\r
	145	EFIAPI\r
	146	PeiUsbControlTransfer (\r
	147	IN EFI_PEI_SERVICES **PeiServices,\r
	148	IN PEI_USB_IO_PPI *This,\r
	149	IN EFI_USB_DEVICE_REQUEST *Request,\r
	150	IN EFI_USB_DATA_DIRECTION Direction,\r
	151	IN UINT32 Timeout,\r
	152	IN OUT VOID *Data, OPTIONAL\r
	153	IN UINTN DataLength OPTIONAL\r
	154	);\r
	155	\r
	156	/**\r
	157	Submits bulk transfer to a bulk endpoint of a USB device.\r
d1102dba	158	\r
4b1bf81c	159	@param PeiServices The pointer of EFI_PEI_SERVICES.\r
	160	@param This The pointer of PEI_USB_IO_PPI.\r
	161	@param DeviceEndpoint Endpoint number and its direction in bit 7.\r
d1102dba	162	@param Data A pointer to the buffer of data to transmit\r
4b1bf81c	163	from or receive into.\r
	164	@param DataLength The lenght of the data buffer.\r
	165	@param Timeout Indicates the maximum time, in millisecond, which the\r
ca243131 FT	166	transfer is allowed to complete. If Timeout is 0, then\r
	167	the caller must wait for the function to be completed\r
	168	until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.\r
4b1bf81c	169	\r
	170	@retval EFI_SUCCESS The transfer was completed successfully.\r
	171	@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.\r
	172	@retval EFI_INVALID_PARAMETER Parameters are invalid.\r
	173	@retval EFI_TIMEOUT The transfer failed due to timeout.\r
	174	@retval EFI_DEVICE_ERROR The transfer failed due to host controller error.\r
	175	\r
	176	**/\r
	177	EFI_STATUS\r
	178	EFIAPI\r
	179	PeiUsbBulkTransfer (\r
	180	IN EFI_PEI_SERVICES **PeiServices,\r
	181	IN PEI_USB_IO_PPI *This,\r
	182	IN UINT8 DeviceEndpoint,\r
	183	IN OUT VOID *Data,\r
	184	IN OUT UINTN *DataLength,\r
	185	IN UINTN Timeout\r
	186	);\r
	187	\r
	188	/**\r
	189	Get the usb interface descriptor.\r
	190	\r
	191	@param PeiServices General-purpose services that are available to every PEIM.\r
	192	@param This Indicates the PEI_USB_IO_PPI instance.\r
	193	@param InterfaceDescriptor Request interface descriptor.\r
	194	\r
	195	\r
	196	@retval EFI_SUCCESS Usb interface descriptor is obtained successfully.\r
	197	\r
	198	**/\r
	199	EFI_STATUS\r
	200	EFIAPI\r
	201	PeiUsbGetInterfaceDescriptor (\r
	202	IN EFI_PEI_SERVICES **PeiServices,\r
	203	IN PEI_USB_IO_PPI *This,\r
	204	OUT EFI_USB_INTERFACE_DESCRIPTOR **InterfaceDescriptor\r
	205	);\r
	206	\r
	207	/**\r
	208	Get the usb endpoint descriptor.\r
	209	\r
	210	@param PeiServices General-purpose services that are available to every PEIM.\r
	211	@param This Indicates the PEI_USB_IO_PPI instance.\r
	212	@param EndpointIndex The valid index of the specified endpoint.\r
	213	@param EndpointDescriptor Request endpoint descriptor.\r
	214	\r
	215	@retval EFI_SUCCESS Usb endpoint descriptor is obtained successfully.\r
	216	@retval EFI_NOT_FOUND Usb endpoint descriptor is NOT found.\r
	217	\r
	218	**/\r
	219	EFI_STATUS\r
	220	EFIAPI\r
	221	PeiUsbGetEndpointDescriptor (\r
	222	IN EFI_PEI_SERVICES **PeiServices,\r
	223	IN PEI_USB_IO_PPI *This,\r
	224	IN UINT8 EndpointIndex,\r
	225	OUT EFI_USB_ENDPOINT_DESCRIPTOR **EndpointDescriptor\r
	226	);\r
	227	\r
	228	/**\r
	229	Reset the port and re-configure the usb device.\r
	230	\r
	231	@param PeiServices General-purpose services that are available to every PEIM.\r
	232	@param This Indicates the PEI_USB_IO_PPI instance.\r
233	\r
234	@retval EFI_SUCCESS Usb device is reset and configured successfully.\r
235	@retval Others Other failure occurs.\r
236	\r
237	**/\r
238	EFI_STATUS\r
239	EFIAPI\r
240	PeiUsbPortReset (\r
241	IN EFI_PEI_SERVICES **PeiServices,\r
242	IN PEI_USB_IO_PPI *This\r
243	);\r
244	\r
245	/**\r
246	Send reset signal over the given root hub port.\r
d1102dba	247	\r
4b1bf81c	248	@param PeiServices Describes the list of possible PEI Services.\r
	249	@param UsbHcPpi The pointer of PEI_USB_HOST_CONTROLLER_PPI instance.\r
	250	@param Usb2HcPpi The pointer of PEI_USB2_HOST_CONTROLLER_PPI instance.\r
	251	@param PortNum The port to be reset.\r
	252	@param RetryIndex The retry times.\r
	253	\r
	254	**/\r
	255	VOID\r
	256	ResetRootPort (\r
	257	IN EFI_PEI_SERVICES **PeiServices,\r
	258	IN PEI_USB_HOST_CONTROLLER_PPI *UsbHcPpi,\r
	259	IN PEI_USB2_HOST_CONTROLLER_PPI *Usb2HcPpi,\r
	260	IN UINT8 PortNum,\r
	261	IN UINT8 RetryIndex\r
	262	);\r
	263	\r
	264	#endif\r