[mirror_edk2.git] / MdePkg / Include / Protocol / DriverHealth.h

/** @file\r
  EFI Driver Health Protocol definitions.\r
\r
  When installed, the Driver Health Protocol produces a collection of services that allow\r
  the health status for a controller to be retrieved. If a controller is not in a usable\r
  state, status messages may be reported to the user, repair operations can be invoked,\r
  and the user may be asked to make software and/or hardware configuration changes.\r
  \r
  The Driver Health Protocol is optionally produced by a driver that follows the \r
  EFI Driver Model.  If an EFI Driver needs to report health status to the platform, \r
  provide warning or error messages to the user, perform length repair operations, \r
  or request the user to make hardware or software configuration changes, then the \r
  Driver Health Protocol must be produced.\r
 \r
  A controller that is managed by driver that follows the EFI Driver Model and \r
  produces the Driver Health Protocol must report the current health of the \r
  controllers that the driver is currently managing.  The controller can initially \r
  be healthy, failed, require repair, or require configuration.  If a controller \r
  requires configuration, and the user make configuration changes, the controller \r
  may then need to be reconnected or the system may need to be rebooted for the \r
  configuration changes to take affect. \r
\r
  Copyright (c) 2009, 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 Protocol is defined in UEFI Specification 2.2 \r
\r
**/\r
\r
#ifndef __EFI_DRIVER_HEALTH_H__\r
#define __EFI_DRIVER_HEALTH_H__\r
\r
#define EFI_DRIVER_HEALTH_PROTOCOL_GUID \\r
  { \\r
    0x2a534210, 0x9280, 0x41d8, { 0xae, 0x79, 0xca, 0xda, 0x1, 0xa2, 0xb1, 0x27 } \\r
  }\r
  \r
typedef struct _EFI_DRIVER_HEALTH_PROTOCOL  EFI_DRIVER_HEALTH_PROTOCOL;\r
\r
///\r
/// EFI_DRIVER_HEALTH_HEALTH_STATUS\r
///\r
typedef enum {\r
  EfiDriverHealthStatusHealthy,\r
  EfiDriverHealthStatusRepairRequired,\r
  EfiDriverHealthStatusConfigurationRequired,\r
  EfiDriverHealthStatusFailed,\r
  EfiDriverHealthStatusReconnectRequired,\r
  EfiDriverHealthStatusRebootRequired\r
} EFI_DRIVER_HEALTH_STATUS;\r
\r
///\r
/// EFI_DRIVER_HEALTH_HII_MESSAGE\r
///\r
typedef struct {\r
  EFI_HII_HANDLE  HiiHandle;\r
  EFI_STRING_ID   StringId;\r
  UINT64          Reserved;\r
} EFI_DRIVER_HEALTH_HII_MESSAGE;\r
\r
/**\r
  Reports the progress of a repair operation\r
\r
  @param  Value                 A value between 0 and Limit that identifies the current \r
                                progress of the repair operation.\r
  \r
  @param  Limit                 The maximum value of Value for the current repair operation.\r
                                For example, a driver that wants to specify progress in \r
                                percent would use a Limit value of 100.\r
  \r
  @retval EFI_SUCCESS           An attempt to repair the controller specified by\r
                                ControllerHandle and ChildHandle was performed. The\r
                                result of the repair operation can bet determined by\r
                                calling GetHealthStatus().\r
  @retval EFI_UNSUPPORTED       The driver specified by This is not currently managing the\r
                                controller specified by ControllerHandle and\r
                                ChildHandle.\r
  @retval EFI_OUT_OF_RESOURCES  There are not enough resources to perform the repair operation.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_DRIVER_HEALTH_REPAIR_PROGRESS_NOTIFY)(\r
  IN UINTN  Value,\r
  IN UINTN  Limit\r
  );\r
\r
/**\r
  Retrieves the health status of a controller in the platform.  This function can also \r
  optionally return warning messages, error messages, and a set of HII Forms that may \r
  be repair a controller that is not proper configured. \r
  \r
  @param  This             A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance.\r
\r
  @param  ControllerHandle The handle of the controller to retrieve the health status \r
                           on.  This is an optional parameter that may be NULL.  If \r
                           this parameter is NULL, then the value of ChildHandle is \r
                           ignored, and the combined health status of all the devices \r
                           that the driver is managing is returned.\r
\r
  @param  ChildHandle      The handle of the child controller to retrieve the health \r
                           status on.  This is an optional parameter that may be NULL.  \r
                           This parameter is ignored of ControllerHandle is NULL.  It \r
                           will be NULL for device drivers.  It will also be NULL for \r
                           bus drivers when an attempt is made to collect the health \r
                           status of the bus controller.  If will not be NULL when an \r
                           attempt is made to collect the health status for a child \r
                           controller produced by the driver.\r
\r
  @param  HealthStatus     A pointer to the health status that is returned by this \r
                           function.  This is an optional parameter that may be NULL.  \r
                           This parameter is ignored of ControllerHandle is NULL.  \r
                           The health status for the controller specified by \r
                           ControllerHandle and ChildHandle is returned. \r
\r
  @param  MessageList      A pointer to an array of warning or error messages associated \r
                           with the controller specified by ControllerHandle and \r
                           ChildHandle.  This is an optional parameter that may be NULL.  \r
                           MessageList is allocated by this function with the EFI Boot \r
                           Service AllocatePool(), and it is the caller's responsibility \r
                           to free MessageList with the EFI Boot Service FreePool().  \r
                           Each message is specified by tuple of an EFI_HII_HANDLE and \r
                           an EFI_STRING_ID.  The array of messages is terminated by tuple \r
                           containing a EFI_HII_HANDLE with a value of NULL.  The \r
                           EFI_HII_STRING_PROTOCOL.GetString() function can be used to \r
                           retrieve the warning or error message as a Null-terminated \r
                           Unicode string in a specific language.  Messages may be \r
                           returned for any of the HealthStatus values except \r
                           EfiDriverHealthStatusReconnectRequired and \r
                           EfiDriverHealthStatusRebootRequired.\r
\r
  @param  FormHiiHandle    A pointer to the HII handle for an HII form associated with the \r
                           controller specified by ControllerHandle and ChildHandle.  \r
                           This is an optional parameter that may be NULL.  An HII form \r
                           is specified by a combination of an EFI_HII_HANDLE and an \r
                           EFI_GUID that identifies the Form Set GUID.  The \r
                           EFI_FORM_BROWSER2_PROTOCOL.SendForm() function can be used \r
                           to display and allow the user to make configuration changes \r
                           to the HII Form.  An HII form may only be returned with a \r
                           HealthStatus value of EfiDriverHealthStatusConfigurationRequired.\r
\r
  @retval EFI_SUCCESS           ControllerHandle is NULL, and all the controllers \r
                                managed by this driver specified by This have a health \r
                                status of EfiDriverHealthStatusHealthy with no warning \r
                                messages to be returned.  The ChildHandle, HealthStatus, \r
                                MessageList, and FormList parameters are ignored.\r
\r
  @retval EFI_DEVICE_ERROR      ControllerHandle is NULL, and one or more of the \r
                                controllers managed by this driver specified by This \r
                                do not have a health status of EfiDriverHealthStatusHealthy.  \r
                                The ChildHandle, HealthStatus, MessageList, and \r
                                FormList parameters are ignored.\r
\r
  @retval EFI_DEVICE_ERROR      ControllerHandle is NULL, and one or more of the \r
                                controllers managed by this driver specified by This \r
                                have one or more warning and/or error messages.  \r
                                The ChildHandle, HealthStatus, MessageList, and \r
                                FormList parameters are ignored.\r
\r
  @retval EFI_SUCCESS           ControllerHandle is not NULL and the health status \r
                                of the controller specified by ControllerHandle and \r
                                ChildHandle was returned in HealthStatus.  A list \r
                                of warning and error messages may be optionally \r
                                returned in MessageList, and a list of HII Forms \r
                                may be optionally returned in FormList.\r
\r
  @retval EFI_UNSUPPORTED	      ControllerHandle is not NULL, and the controller \r
                                specified by ControllerHandle and ChildHandle is not \r
                                currently being managed by the driver specified by This.\r
\r
  @retval EFI_INVALID_PARAMETER	HealthStatus is NULL.\r
\r
  @retval EFI_OUT_OF_RESOURCES	MessageList is not NULL, and there are not enough \r
                                resource available to allocate memory for MessageList.\r
\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_DRIVER_HEALTH_GET_HEALTH_STATUS)(\r
  IN  EFI_DRIVER_HEALTH_PROTOCOL       *This,\r
  IN  EFI_HANDLE                       ControllerHandle OPTIONAL,\r
  IN  EFI_HANDLE                       ChildHandle      OPTIONAL,\r
  OUT EFI_DRIVER_HEALTH_STATUS         *HealthStatus,\r
  OUT EFI_DRIVER_HEALTH_HII_MESSAGE    **MessageList    OPTIONAL,\r
  OUT EFI_HII_HANDLE                   *FormHiiHandle   OPTIONAL\r
  );\r
\r
/**\r
  Performs a repair operation on a controller in the platform.  This function can \r
  optionally report repair progress information back to the platform. \r
  \r
  @param  This                  A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance.\r
  @param  ControllerHandle      The handle of the controller to repair.\r
  @param  ChildHandle           The handle of the child controller to repair.  This is \r
                                an optional parameter that may be NULL.  It will be NULL \r
                                for device drivers.  It will also be NULL for bus \r
                                drivers when an attempt is made to repair a bus controller.\r
                                If will not be NULL when an attempt is made to repair a \r
                                child controller produced by the driver.\r
  @param  ProgressNotification  A notification function that may be used by a driver to \r
                                report the progress of the repair operation.  This is \r
                                an optional parameter that may be NULL.  \r
\r
\r
  @retval EFI_SUCCESS	          An attempt to repair the controller specified by \r
                                ControllerHandle and ChildHandle was performed.  \r
                                The result of the repair operation can bet \r
                                determined by calling GetHealthStatus().\r
  @retval EFI_UNSUPPORTED	      The driver specified by This is not currently \r
                                managing the controller specified by ControllerHandle \r
                                and ChildHandle.\r
  @retval EFI_OUT_OF_RESOURCES	There are not enough resources to perform the \r
                                repair operation.\r
\r
*/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_DRIVER_HEALTH_REPAIR)(\r
  IN  EFI_DRIVER_HEALTH_PROTOCOL                *This,\r
  IN  EFI_HANDLE                                ControllerHandle,\r
  IN  EFI_HANDLE                                ChildHandle          OPTIONAL,\r
  IN  EFI_DRIVER_HEALTH_REPAIR_PROGRESS_NOTIFY  ProgressNotification OPTIONAL\r
  );\r
\r
///\r
/// When installed, the Driver Health Protocol produces a collection of services\r
/// that allow the health status for a controller to be retrieved.  If a controller \r
/// is not in a usable state, status messages may be reported to the user, repair \r
/// operations can be invoked, and the user may be asked to make software and/or \r
/// hardware configuration changes. \r
///\r
struct _EFI_DRIVER_HEALTH_PROTOCOL {\r
  EFI_DRIVER_HEALTH_GET_HEALTH_STATUS  GetHealthStatus;\r
  EFI_DRIVER_HEALTH_REPAIR             Repair;\r
};\r
\r
extern EFI_GUID gEfiDriverHealthProtocolGuid;\r
\r
#endif\r
\r
\r
\r
\r
Commit	Line	Data
91750954	1	/** @file\r
	2	EFI Driver Health Protocol definitions.\r
	3	\r
	4	When installed, the Driver Health Protocol produces a collection of services that allow\r
	5	the health status for a controller to be retrieved. If a controller is not in a usable\r
	6	state, status messages may be reported to the user, repair operations can be invoked,\r
	7	and the user may be asked to make software and/or hardware configuration changes.\r
	8	\r
	9	The Driver Health Protocol is optionally produced by a driver that follows the \r
	10	EFI Driver Model. If an EFI Driver needs to report health status to the platform, \r
	11	provide warning or error messages to the user, perform length repair operations, \r
	12	or request the user to make hardware or software configuration changes, then the \r
	13	Driver Health Protocol must be produced.\r
	14	\r
	15	A controller that is managed by driver that follows the EFI Driver Model and \r
	16	produces the Driver Health Protocol must report the current health of the \r
	17	controllers that the driver is currently managing. The controller can initially \r
	18	be healthy, failed, require repair, or require configuration. If a controller \r
	19	requires configuration, and the user make configuration changes, the controller \r
	20	may then need to be reconnected or the system may need to be rebooted for the \r
	21	configuration changes to take affect. \r
	22	\r
	23	Copyright (c) 2009, Intel Corporation \r
	24	All rights reserved. This program and the accompanying materials \r
	25	are licensed and made available under the terms and conditions of the BSD License \r
	26	which accompanies this distribution. The full text of the license may be found at \r
	27	http://opensource.org/licenses/bsd-license.php \r
	28	\r
	29	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
	30	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
	31	\r
	32	@par Revision Reference:\r
	33	This Protocol is defined in UEFI Specification 2.2 \r
	34	\r
	35	**/\r
	36	\r
	37	#ifndef __EFI_DRIVER_HEALTH_H__\r
	38	#define __EFI_DRIVER_HEALTH_H__\r
	39	\r
	40	#define EFI_DRIVER_HEALTH_PROTOCOL_GUID \\r
	41	{ \\r
	42	0x2a534210, 0x9280, 0x41d8, { 0xae, 0x79, 0xca, 0xda, 0x1, 0xa2, 0xb1, 0x27 } \\r
	43	}\r
	44	\r
	45	typedef struct _EFI_DRIVER_HEALTH_PROTOCOL EFI_DRIVER_HEALTH_PROTOCOL;\r
	46	\r
	47	///\r
	48	/// EFI_DRIVER_HEALTH_HEALTH_STATUS\r
	49	///\r
	50	typedef enum {\r
	51	EfiDriverHealthStatusHealthy,\r
	52	EfiDriverHealthStatusRepairRequired,\r
	53	EfiDriverHealthStatusConfigurationRequired,\r
	54	EfiDriverHealthStatusFailed,\r
	55	EfiDriverHealthStatusReconnectRequired,\r
	56	EfiDriverHealthStatusRebootRequired\r
	57	} EFI_DRIVER_HEALTH_STATUS;\r
	58	\r
	59	///\r
	60	/// EFI_DRIVER_HEALTH_HII_MESSAGE\r
	61	///\r
	62	typedef struct {\r
	63	EFI_HII_HANDLE HiiHandle;\r
	64	EFI_STRING_ID StringId;\r
65	UINT64 Reserved;\r
66	} EFI_DRIVER_HEALTH_HII_MESSAGE;\r
67	\r
68	/**\r
69	Reports the progress of a repair operation\r
70	\r
71	@param Value A value between 0 and Limit that identifies the current \r
72	progress of the repair operation.\r
73	\r
74	@param Limit The maximum value of Value for the current repair operation.\r
75	For example, a driver that wants to specify progress in \r
76	percent would use a Limit value of 100.\r
77	\r
78	@retval EFI_SUCCESS An attempt to repair the controller specified by\r
79	ControllerHandle and ChildHandle was performed. The\r
80	result of the repair operation can bet determined by\r
81	calling GetHealthStatus().\r
82	@retval EFI_UNSUPPORTED The driver specified by This is not currently managing the\r
83	controller specified by ControllerHandle and\r
84	ChildHandle.\r
85	@retval EFI_OUT_OF_RESOURCES There are not enough resources to perform the repair operation.\r
86	\r
87	**/\r
88	typedef\r
89	EFI_STATUS\r
90	(EFIAPI *EFI_DRIVER_HEALTH_REPAIR_PROGRESS_NOTIFY)(\r
91	IN UINTN Value,\r
92	IN UINTN Limit\r
93	);\r
94	\r
95	/**\r
96	Retrieves the health status of a controller in the platform. This function can also \r
97	optionally return warning messages, error messages, and a set of HII Forms that may \r
98	be repair a controller that is not proper configured. \r
99	\r
100	@param This A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance.\r
101	\r
102	@param ControllerHandle The handle of the controller to retrieve the health status \r
103	on. This is an optional parameter that may be NULL. If \r
104	this parameter is NULL, then the value of ChildHandle is \r
105	ignored, and the combined health status of all the devices \r
106	that the driver is managing is returned.\r
107	\r
108	@param ChildHandle The handle of the child controller to retrieve the health \r
109	status on. This is an optional parameter that may be NULL. \r
110	This parameter is ignored of ControllerHandle is NULL. It \r
111	will be NULL for device drivers. It will also be NULL for \r
112	bus drivers when an attempt is made to collect the health \r
113	status of the bus controller. If will not be NULL when an \r
114	attempt is made to collect the health status for a child \r
115	controller produced by the driver.\r
116	\r
117	@param HealthStatus A pointer to the health status that is returned by this \r
118	function. This is an optional parameter that may be NULL. \r
119	This parameter is ignored of ControllerHandle is NULL. \r
120	The health status for the controller specified by \r
121	ControllerHandle and ChildHandle is returned. \r
122	\r
123	@param MessageList A pointer to an array of warning or error messages associated \r
124	with the controller specified by ControllerHandle and \r
125	ChildHandle. This is an optional parameter that may be NULL. \r
126	MessageList is allocated by this function with the EFI Boot \r
127	Service AllocatePool(), and it is the caller's responsibility \r
128	to free MessageList with the EFI Boot Service FreePool(). \r
129	Each message is specified by tuple of an EFI_HII_HANDLE and \r
130	an EFI_STRING_ID. The array of messages is terminated by tuple \r
131	containing a EFI_HII_HANDLE with a value of NULL. The \r
132	EFI_HII_STRING_PROTOCOL.GetString() function can be used to \r
133	retrieve the warning or error message as a Null-terminated \r
134	Unicode string in a specific language. Messages may be \r
135	returned for any of the HealthStatus values except \r
136	EfiDriverHealthStatusReconnectRequired and \r
137	EfiDriverHealthStatusRebootRequired.\r
138	\r
139	@param FormHiiHandle A pointer to the HII handle for an HII form associated with the \r
140	controller specified by ControllerHandle and ChildHandle. \r
141	This is an optional parameter that may be NULL. An HII form \r
142	is specified by a combination of an EFI_HII_HANDLE and an \r
143	EFI_GUID that identifies the Form Set GUID. The \r
144	EFI_FORM_BROWSER2_PROTOCOL.SendForm() function can be used \r
145	to display and allow the user to make configuration changes \r
146	to the HII Form. An HII form may only be returned with a \r
147	HealthStatus value of EfiDriverHealthStatusConfigurationRequired.\r
148	\r
149	@retval EFI_SUCCESS ControllerHandle is NULL, and all the controllers \r
150	managed by this driver specified by This have a health \r
151	status of EfiDriverHealthStatusHealthy with no warning \r
152	messages to be returned. The ChildHandle, HealthStatus, \r
153	MessageList, and FormList parameters are ignored.\r
154	\r
155	@retval EFI_DEVICE_ERROR ControllerHandle is NULL, and one or more of the \r
156	controllers managed by this driver specified by This \r
157	do not have a health status of EfiDriverHealthStatusHealthy. \r
158	The ChildHandle, HealthStatus, MessageList, and \r
159	FormList parameters are ignored.\r
160	\r
161	@retval EFI_DEVICE_ERROR ControllerHandle is NULL, and one or more of the \r
162	controllers managed by this driver specified by This \r
163	have one or more warning and/or error messages. \r
164	The ChildHandle, HealthStatus, MessageList, and \r
165	FormList parameters are ignored.\r
166	\r
167	@retval EFI_SUCCESS ControllerHandle is not NULL and the health status \r
168	of the controller specified by ControllerHandle and \r
169	ChildHandle was returned in HealthStatus. A list \r
170	of warning and error messages may be optionally \r
171	returned in MessageList, and a list of HII Forms \r
172	may be optionally returned in FormList.\r
173	\r
174	@retval EFI_UNSUPPORTED ControllerHandle is not NULL, and the controller \r
175	specified by ControllerHandle and ChildHandle is not \r
176	currently being managed by the driver specified by This.\r
177	\r
178	@retval EFI_INVALID_PARAMETER HealthStatus is NULL.\r
179	\r
180	@retval EFI_OUT_OF_RESOURCES MessageList is not NULL, and there are not enough \r
181	resource available to allocate memory for MessageList.\r
182	\r
183	**/\r
184	typedef\r
185	EFI_STATUS\r
186	(EFIAPI *EFI_DRIVER_HEALTH_GET_HEALTH_STATUS)(\r
187	IN EFI_DRIVER_HEALTH_PROTOCOL *This,\r
188	IN EFI_HANDLE ControllerHandle OPTIONAL,\r
189	IN EFI_HANDLE ChildHandle OPTIONAL,\r
190	OUT EFI_DRIVER_HEALTH_STATUS *HealthStatus,\r
191	OUT EFI_DRIVER_HEALTH_HII_MESSAGE **MessageList OPTIONAL,\r
192	OUT EFI_HII_HANDLE *FormHiiHandle OPTIONAL\r
193	);\r
194	\r
195	/**\r
196	Performs a repair operation on a controller in the platform. This function can \r
197	optionally report repair progress information back to the platform. \r
198	\r
199	@param This A pointer to the EFI_DRIVER_HEALTH_PROTOCOL instance.\r
200	@param ControllerHandle The handle of the controller to repair.\r
201	@param ChildHandle The handle of the child controller to repair. This is \r
202	an optional parameter that may be NULL. It will be NULL \r
203	for device drivers. It will also be NULL for bus \r
204	drivers when an attempt is made to repair a bus controller.\r
205	If will not be NULL when an attempt is made to repair a \r
206	child controller produced by the driver.\r
207	@param ProgressNotification A notification function that may be used by a driver to \r
208	report the progress of the repair operation. This is \r
209	an optional parameter that may be NULL. \r
210	\r
211	\r
212	@retval EFI_SUCCESS An attempt to repair the controller specified by \r
213	ControllerHandle and ChildHandle was performed. \r
214	The result of the repair operation can bet \r
215	determined by calling GetHealthStatus().\r
216	@retval EFI_UNSUPPORTED The driver specified by This is not currently \r
217	managing the controller specified by ControllerHandle \r
218	and ChildHandle.\r
219	@retval EFI_OUT_OF_RESOURCES There are not enough resources to perform the \r
220	repair operation.\r
221	\r
222	*/\r
223	typedef\r
224	EFI_STATUS\r
225	(EFIAPI *EFI_DRIVER_HEALTH_REPAIR)(\r
226	IN EFI_DRIVER_HEALTH_PROTOCOL *This,\r
227	IN EFI_HANDLE ControllerHandle,\r
228	IN EFI_HANDLE ChildHandle OPTIONAL,\r
229	IN EFI_DRIVER_HEALTH_REPAIR_PROGRESS_NOTIFY ProgressNotification OPTIONAL\r
230	);\r
231	\r
232	///\r
233	/// When installed, the Driver Health Protocol produces a collection of services\r
234	/// that allow the health status for a controller to be retrieved. If a controller \r
235	/// is not in a usable state, status messages may be reported to the user, repair \r
236	/// operations can be invoked, and the user may be asked to make software and/or \r
237	/// hardware configuration changes. \r
238	///\r
239	struct _EFI_DRIVER_HEALTH_PROTOCOL {\r
240	EFI_DRIVER_HEALTH_GET_HEALTH_STATUS GetHealthStatus;\r
241	EFI_DRIVER_HEALTH_REPAIR Repair;\r
242	};\r
243	\r
244	extern EFI_GUID gEfiDriverHealthProtocolGuid;\r
245	\r
246	#endif\r
247	\r
248	\r
249	\r
250	\r