/** @file\r
+ Implementation of driver entry point and driver binding protocol.\r
\r
-Copyright (c) 2005 - 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
+Copyright (c) 2005 - 2008, Intel Corporation. <BR> \r
+All rights reserved. This program and the accompanying materials are licensed \r
+and made available under the terms and conditions of the BSD License which \r
+accompanies this distribution. The full text of the license may be found at \r
+http://opensource.org/licenses/bsd-license.php \r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
-Module Name:\r
-\r
- MnpDriver.c\r
-\r
-Abstract:\r
-\r
-\r
**/\r
\r
#include "MnpDriver.h"\r
NULL\r
};\r
\r
-\r
/**\r
- Test to see if this driver supports ControllerHandle.\r
-\r
- @param This Protocol instance pointer.\r
- @param ControllerHandle Handle of device to test.\r
- @param RemainingDevicePath Optional parameter use to pick a specific child\r
- device to start.\r
-\r
- @retval EFI_SUCCES This driver supports this device.\r
- @retval EFI_ALREADY_STARTED This driver is already running on this device.\r
- @retval other This driver does not support this device.\r
+ Test to see if this driver supports ControllerHandle. This service\r
+ is called by the EFI boot service ConnectController(). In\r
+ order to make drivers as small as possible, there are a few calling\r
+ restrictions for this service. ConnectController() must\r
+ follow these calling restrictions. If any other agent wishes to call\r
+ Supported() it must also follow these calling restrictions.\r
+\r
+ @param[in] This Protocol instance pointer.\r
+ @param[in] ControllerHandle Handle of device to test.\r
+ @param[in] RemainingDevicePath Optional parameter use to pick a specific \r
+ child device to start.\r
+\r
+ @retval EFI_SUCCESS This driver supports this device.\r
+ @retval EFI_ALREADY_STARTED This driver is already running on this device.\r
+ @retval Others This driver does not support this device.\r
\r
**/\r
EFI_STATUS\r
\r
\r
/**\r
- Start this driver on ControllerHandle.\r
-\r
- @param This Protocol instance pointer.\r
- @param ControllerHandle Handle of device to bind driver to.\r
- @param RemainingDevicePath Optional parameter use to pick a specific child\r
- device to start.\r
-\r
- @retval EFI_SUCCES This driver is added to ControllerHandle.\r
- @retval EFI_ALREADY_STARTED This driver is already running on\r
- ControllerHandle.\r
- @retval other This driver does not support this device.\r
-\r
+ Start this driver on ControllerHandle. This service is called by the\r
+ EFI boot service ConnectController(). In order to make drivers as small \r
+ as possible, there are a few calling restrictions for this service.\r
+ ConnectController() must follow these calling restrictions. If any other\r
+ agent wishes to call Start() it must also follow these calling restrictions.\r
+\r
+ @param[in] This Protocol instance pointer.\r
+ @param[in] ControllerHandle Handle of device to bind driver to.\r
+ @param[in] RemainingDevicePath Optional parameter use to pick a specific \r
+ child device to start.\r
+\r
+ @retval EFI_SUCCESS This driver is added to ControllerHandle.\r
+ @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle.\r
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate memory for Mnp Service Data.\r
+ @retval Others This driver does not support this device.\r
+ \r
**/\r
EFI_STATUS\r
EFIAPI\r
//\r
// Flush the Mnp Service Data.\r
//\r
- MnpFlushServiceData (MnpServiceData);\r
+ MnpFlushServiceData (MnpServiceData, This->DriverBindingHandle);\r
}\r
\r
gBS->FreePool (MnpServiceData);\r
return Status;\r
}\r
\r
-\r
/**\r
- Stop this driver on ControllerHandle.\r
-\r
- @param This Protocol instance pointer.\r
- @param ControllerHandle Handle of device to stop driver on.\r
- @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number\r
- of children is zero stop the entire bus driver.\r
- @param ChildHandleBuffer List of Child Handles to Stop.\r
-\r
- @retval EFI_SUCCES This driver is removed ControllerHandle.\r
- @retval other This driver was not removed from this device.\r
+ Stop this driver on ControllerHandle. This service is called by the\r
+ EFI boot service DisconnectController(). In order to make drivers as \r
+ small as possible, there are a few calling restrictions for this service. \r
+ DisconnectController() must follow these calling restrictions. If any other \r
+ agent wishes to call Stop() it must also follow these calling restrictions.\r
+ \r
+ @param[in] This Protocol instance pointer.\r
+ @param[in] ControllerHandle Handle of device to stop driver on.\r
+ @param[in] NumberOfChildren Number of Handles in ChildHandleBuffer. If \r
+ number of children is zero stop the entire \r
+ bus driver.\r
+ @param[in] ChildHandleBuffer List of Child Handles to Stop.\r
+\r
+ @retval EFI_SUCCESS This driver is removed ControllerHandle.\r
+ @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
\r
**/\r
EFI_STATUS\r
IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
IN EFI_HANDLE ControllerHandle,\r
IN UINTN NumberOfChildren,\r
- IN EFI_HANDLE *ChildHandleBuffer\r
+ IN EFI_HANDLE *ChildHandleBuffer OPTIONAL\r
)\r
{\r
EFI_STATUS Status;\r
NULL\r
);\r
\r
- //\r
- // Close the openned Snp protocol.\r
- //\r
- gBS->CloseProtocol (\r
- ControllerHandle,\r
- &gEfiSimpleNetworkProtocolGuid,\r
- This->DriverBindingHandle,\r
- ControllerHandle\r
- );\r
-\r
//\r
// Flush the Mnp service data.\r
//\r
- MnpFlushServiceData (MnpServiceData);\r
+ MnpFlushServiceData (MnpServiceData, This->DriverBindingHandle);\r
\r
gBS->FreePool (MnpServiceData);\r
} else {\r
/**\r
Creates a child handle with a set of I/O services.\r
\r
- @param This Protocol instance pointer.\r
- @param ChildHandle Pointer to the handle of the child to create. If\r
- it is NULL, then a new handle is created. If it is\r
- not NULL, then the I/O services are added to the\r
- existing child handle.\r
+ @param[in] This Protocol instance pointer.\r
+ @param[in, out] ChildHandle Pointer to the handle of the child to create. If\r
+ it is NULL, then a new handle is created. If\r
+ it is not NULL, then the I/O services are added \r
+ to the existing child handle.\r
\r
- @retval EFI_SUCCES The child handle was created with the I/O\r
- services.\r
- @retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create\r
- the child.\r
- @retval other The child handle was not created.\r
+ @retval EFI_SUCCES The protocol was added to ChildHandle. \r
+ @retval EFI_INVALID_PARAMETER ChildHandle is NULL. \r
+ @retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to \r
+ create the child.\r
+ @retval Others The child handle was not created.\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
MnpServiceBindingCreateChild (\r
IN EFI_SERVICE_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE *ChildHandle\r
+ IN OUT EFI_HANDLE *ChildHandle\r
)\r
{\r
EFI_STATUS Status;\r
\r
/**\r
Destroys a child handle with a set of I/O services.\r
-\r
- @param This Protocol instance pointer.\r
- @param ChildHandle Handle of the child to destroy.\r
-\r
- @retval EFI_SUCCES The I/O services were removed from the child\r
- handle.\r
- @retval EFI_UNSUPPORTED The child handle does not support the I/O services\r
- that are being removed.\r
- @retval EFI_INVALID_PARAMETER Child handle is not a valid EFI Handle.\r
- @retval EFI_ACCESS_DENIED The child handle could not be destroyed because\r
- its I/O services are being used.\r
- @retval other The child handle was not destroyed.\r
+ \r
+ The DestroyChild() function does the opposite of CreateChild(). It removes a \r
+ protocol that was installed by CreateChild() from ChildHandle. If the removed \r
+ protocol is the last protocol on ChildHandle, then ChildHandle is destroyed. \r
+ \r
+ @param[in] This Pointer to the EFI_SERVICE_BINDING_PROTOCOL \r
+ instance.\r
+ @param[in] ChildHandle Handle of the child to destroy.\r
+\r
+ @retval EFI_SUCCES The protocol was removed from ChildHandle. \r
+ @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that\r
+ is being removed.\r
+ @retval EFI_INVALID_PARAMETER ChildHandle is not a valid UEFI handle.\r
+ @retval EFI_ACCESS_DENIED The protocol could not be removed from the\r
+ ChildHandle because its services are being\r
+ used.\r
+ @retval Others The child handle was not destroyed.\r
\r
**/\r
EFI_STATUS\r
return Status;\r
}\r
\r
+/**\r
+ The entry point for Mnp driver which installs the driver binding and component\r
+ name protocol on its ImageHandle.\r
+\r
+ @param[in] ImageHandle The image handle of the driver.\r
+ @param[in] SystemTable The system table.\r
\r
+ @retval EFI_SUCCES The driver binding and component name protocols are \r
+ successfully installed.\r
+ @retval Others Other errors as indicated.\r
+\r
+**/\r
EFI_STATUS\r
EFIAPI\r
MnpDriverEntryPoint (\r
IN EFI_HANDLE ImageHandle,\r
IN EFI_SYSTEM_TABLE *SystemTable\r
)\r
-/*++\r
-\r
-Routine Description:\r
-\r
- The entry point for Mnp driver which installs the driver binding and component name\r
- protocol on its ImageHandle.\r
-\r
-Arguments:\r
-\r
- ImageHandle - The image handle of the driver.\r
- SystemTable - The system table.\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - If the driver binding and component name protocols are successfully\r
- installed, otherwise if failed.\r
-\r
---*/\r
{\r
return EfiLibInstallDriverBindingComponentName2 (\r
ImageHandle,\r
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