From: Ruiyu Ni Date: Tue, 26 May 2015 02:48:42 +0000 (+0000) Subject: MdeModulePkg: Add IsaBusDxe driver X-Git-Tag: edk2-stable201903~9752 X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=9834b6c14e41f09a468ce29361ed41ae16975a58 MdeModulePkg: Add IsaBusDxe driver This driver follows UEFI driver model and layers on ISA HC protocol defined in PI spec 1.2.1. It consumes the ISA Host Controller protocol produced by the ISA Host Controller and installs the ISA Host Controller Service Binding protocol on the ISA Host Controller's handle. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ruiyu Ni Reviewed-by: Star Zeng git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17504 6f19259b-4bc3-4df7-8a09-765794883524 --- diff --git a/Bus/Isa/IsaBusDxe/ComponentName.c b/Bus/Isa/IsaBusDxe/ComponentName.c new file mode 100644 index 0000000000..ff7bbef278 --- /dev/null +++ b/Bus/Isa/IsaBusDxe/ComponentName.c @@ -0,0 +1,180 @@ +/** @file + UEFI Component Name(2) protocol implementation for IsaBusDxe driver. + + Copyright (c) 2015, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include "ComponentName.h" +#include + +// +// Driver name table +// +GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mIsaBusDriverNameTable[] = { + { "eng;en", L"PI ISA BUS Driver" }, + { NULL , NULL } +}; + +// +// EFI Component Name Protocol +// +GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL gIsaBusComponentName = { + IsaBusComponentNameGetDriverName, + IsaBusComponentNameGetControllerName, + "eng" +}; + +// +// EFI Component Name 2 Protocol +// +GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gIsaBusComponentName2 = { + (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) IsaBusComponentNameGetDriverName, + (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) IsaBusComponentNameGetControllerName, + "en" +}; + +/** + Retrieves a Unicode string that is the user readable name of the driver. + + This function retrieves the user readable name of a driver in the form of a + Unicode string. If the driver specified by This has a user readable name in + the language specified by Language, then a pointer to the driver name is + returned in DriverName, and EFI_SUCCESS is returned. If the driver specified + by This does not support the language specified by Language, + then EFI_UNSUPPORTED is returned. + + @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or + EFI_COMPONENT_NAME_PROTOCOL instance. + + @param Language[in] A pointer to a Null-terminated ASCII string + array indicating the language. This is the + language of the driver name that the caller is + requesting, and it must match one of the + languages specified in SupportedLanguages. The + number of languages supported by a driver is up + to the driver writer. Language is specified + in RFC 4646 or ISO 639-2 language code format. + + @param DriverName[out] A pointer to the Unicode string to return. + This Unicode string is the name of the + driver specified by This in the language + specified by Language. + + @retval EFI_SUCCESS The Unicode string for the Driver specified by + This and the language specified by Language was + returned in DriverName. + + @retval EFI_INVALID_PARAMETER Language is NULL. + + @retval EFI_INVALID_PARAMETER DriverName is NULL. + + @retval EFI_UNSUPPORTED The driver specified by This does not support + the language specified by Language. + +**/ +EFI_STATUS +EFIAPI +IsaBusComponentNameGetDriverName ( + IN EFI_COMPONENT_NAME_PROTOCOL *This, + IN CHAR8 *Language, + OUT CHAR16 **DriverName + ) +{ + return LookupUnicodeString2 ( + Language, + This->SupportedLanguages, + mIsaBusDriverNameTable, + DriverName, + (BOOLEAN)(This == &gIsaBusComponentName) + ); +} + + +/** + Retrieves a Unicode string that is the user readable name of the controller + that is being managed by a driver. + + This function retrieves the user readable name of the controller specified by + ControllerHandle and ChildHandle in the form of a Unicode string. If the + driver specified by This has a user readable name in the language specified by + Language, then a pointer to the controller name is returned in ControllerName, + and EFI_SUCCESS is returned. If the driver specified by This is not currently + managing the controller specified by ControllerHandle and ChildHandle, + then EFI_UNSUPPORTED is returned. If the driver specified by This does not + support the language specified by Language, then EFI_UNSUPPORTED is returned. + + @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or + EFI_COMPONENT_NAME_PROTOCOL instance. + + @param ControllerHandle[in] The handle of a controller that the driver + specified by This is managing. This handle + specifies the controller whose name is to be + returned. + + @param ChildHandle[in] The handle of the child controller to retrieve + the name of. This is an optional parameter that + may be NULL. It will be NULL for device + drivers. It will also be NULL for a bus drivers + that wish to retrieve the name of the bus + controller. It will not be NULL for a bus + driver that wishes to retrieve the name of a + child controller. + + @param Language[in] A pointer to a Null-terminated ASCII string + array indicating the language. This is the + language of the driver name that the caller is + requesting, and it must match one of the + languages specified in SupportedLanguages. The + number of languages supported by a driver is up + to the driver writer. Language is specified in + RFC 4646 or ISO 639-2 language code format. + + @param ControllerName[out] A pointer to the Unicode string to return. + This Unicode string is the name of the + controller specified by ControllerHandle and + ChildHandle in the language specified by + Language from the point of view of the driver + specified by This. + + @retval EFI_SUCCESS The Unicode string for the user readable name in + the language specified by Language for the + driver specified by This was returned in + DriverName. + + @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. + + @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid + EFI_HANDLE. + + @retval EFI_INVALID_PARAMETER Language is NULL. + + @retval EFI_INVALID_PARAMETER ControllerName is NULL. + + @retval EFI_UNSUPPORTED The driver specified by This is not currently + managing the controller specified by + ControllerHandle and ChildHandle. + + @retval EFI_UNSUPPORTED The driver specified by This does not support + the language specified by Language. + +**/ +EFI_STATUS +EFIAPI +IsaBusComponentNameGetControllerName ( + IN EFI_COMPONENT_NAME_PROTOCOL *This, + IN EFI_HANDLE ControllerHandle, + IN EFI_HANDLE ChildHandle OPTIONAL, + IN CHAR8 *Language, + OUT CHAR16 **ControllerName + ) +{ + return EFI_UNSUPPORTED; +} diff --git a/Bus/Isa/IsaBusDxe/ComponentName.h b/Bus/Isa/IsaBusDxe/ComponentName.h new file mode 100644 index 0000000000..f533971833 --- /dev/null +++ b/Bus/Isa/IsaBusDxe/ComponentName.h @@ -0,0 +1,151 @@ +/** @file + UEFI Component Name(2) protocol implementation for IsaBusDxe driver. + + Copyright (c) 2015, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef _ISA_BUS_COMPONENT_NAME_H_ +#define _ISA_BUS_COMPONENT_NAME_H_ + +#include +#include +#include + +extern EFI_COMPONENT_NAME_PROTOCOL gIsaBusComponentName; +extern EFI_COMPONENT_NAME2_PROTOCOL gIsaBusComponentName2; + +/** + Retrieves a Unicode string that is the user readable name of the driver. + + This function retrieves the user readable name of a driver in the form of a + Unicode string. If the driver specified by This has a user readable name in + the language specified by Language, then a pointer to the driver name is + returned in DriverName, and EFI_SUCCESS is returned. If the driver specified + by This does not support the language specified by Language, + then EFI_UNSUPPORTED is returned. + + @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or + EFI_COMPONENT_NAME_PROTOCOL instance. + + @param Language[in] A pointer to a Null-terminated ASCII string + array indicating the language. This is the + language of the driver name that the caller is + requesting, and it must match one of the + languages specified in SupportedLanguages. The + number of languages supported by a driver is up + to the driver writer. Language is specified + in RFC 4646 or ISO 639-2 language code format. + + @param DriverName[out] A pointer to the Unicode string to return. + This Unicode string is the name of the + driver specified by This in the language + specified by Language. + + @retval EFI_SUCCESS The Unicode string for the Driver specified by + This and the language specified by Language was + returned in DriverName. + + @retval EFI_INVALID_PARAMETER Language is NULL. + + @retval EFI_INVALID_PARAMETER DriverName is NULL. + + @retval EFI_UNSUPPORTED The driver specified by This does not support + the language specified by Language. + +**/ +EFI_STATUS +EFIAPI +IsaBusComponentNameGetDriverName ( + IN EFI_COMPONENT_NAME_PROTOCOL *This, + IN CHAR8 *Language, + OUT CHAR16 **DriverName + ); + + +/** + Retrieves a Unicode string that is the user readable name of the controller + that is being managed by a driver. + + This function retrieves the user readable name of the controller specified by + ControllerHandle and ChildHandle in the form of a Unicode string. If the + driver specified by This has a user readable name in the language specified by + Language, then a pointer to the controller name is returned in ControllerName, + and EFI_SUCCESS is returned. If the driver specified by This is not currently + managing the controller specified by ControllerHandle and ChildHandle, + then EFI_UNSUPPORTED is returned. If the driver specified by This does not + support the language specified by Language, then EFI_UNSUPPORTED is returned. + + @param This[in] A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or + EFI_COMPONENT_NAME_PROTOCOL instance. + + @param ControllerHandle[in] The handle of a controller that the driver + specified by This is managing. This handle + specifies the controller whose name is to be + returned. + + @param ChildHandle[in] The handle of the child controller to retrieve + the name of. This is an optional parameter that + may be NULL. It will be NULL for device + drivers. It will also be NULL for a bus drivers + that wish to retrieve the name of the bus + controller. It will not be NULL for a bus + driver that wishes to retrieve the name of a + child controller. + + @param Language[in] A pointer to a Null-terminated ASCII string + array indicating the language. This is the + language of the driver name that the caller is + requesting, and it must match one of the + languages specified in SupportedLanguages. The + number of languages supported by a driver is up + to the driver writer. Language is specified in + RFC 4646 or ISO 639-2 language code format. + + @param ControllerName[out] A pointer to the Unicode string to return. + This Unicode string is the name of the + controller specified by ControllerHandle and + ChildHandle in the language specified by + Language from the point of view of the driver + specified by This. + + @retval EFI_SUCCESS The Unicode string for the user readable name in + the language specified by Language for the + driver specified by This was returned in + DriverName. + + @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. + + @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid + EFI_HANDLE. + + @retval EFI_INVALID_PARAMETER Language is NULL. + + @retval EFI_INVALID_PARAMETER ControllerName is NULL. + + @retval EFI_UNSUPPORTED The driver specified by This is not currently + managing the controller specified by + ControllerHandle and ChildHandle. + + @retval EFI_UNSUPPORTED The driver specified by This does not support + the language specified by Language. + +**/ +EFI_STATUS +EFIAPI +IsaBusComponentNameGetControllerName ( + IN EFI_COMPONENT_NAME_PROTOCOL *This, + IN EFI_HANDLE ControllerHandle, + IN EFI_HANDLE ChildHandle OPTIONAL, + IN CHAR8 *Language, + OUT CHAR16 **ControllerName + ); + +#endif diff --git a/Bus/Isa/IsaBusDxe/IsaBusDxe.c b/Bus/Isa/IsaBusDxe/IsaBusDxe.c new file mode 100644 index 0000000000..7067c6e6f0 --- /dev/null +++ b/Bus/Isa/IsaBusDxe/IsaBusDxe.c @@ -0,0 +1,461 @@ +/** @file + This file consumes the ISA Host Controller protocol produced by the ISA Host + Controller and installs the ISA Host Controller Service Binding protocol + on the ISA Host Controller's handle. + + Copyright (c) 2015, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + + +**/ + +#include "IsaBusDxe.h" +#include "ComponentName.h" + +/** + Tests to see if this driver supports a given controller. If a child device is provided, + it further tests to see if this driver supports creating a handle for the specified child device. + + @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. + @param[in] ControllerHandle The handle of the controller to test. This handle + must support a protocol interface that supplies + an I/O abstraction to the driver. + @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This + parameter is ignored by device drivers, and is optional for bus + drivers. For bus drivers, if this parameter is not NULL, then + the bus driver must determine if the bus controller specified + by ControllerHandle and the child controller specified + by RemainingDevicePath are both supported by this + bus driver. + + @retval EFI_SUCCESS The device specified by ControllerHandle and + RemainingDevicePath is supported by the driver specified by This. + @retval EFI_ALREADY_STARTED The device specified by ControllerHandle and + RemainingDevicePath is already being managed by the driver + specified by This. + @retval EFI_ACCESS_DENIED The device specified by ControllerHandle and + RemainingDevicePath is already being managed by a different + driver or an application that requires exclusive access. + Currently not implemented. + @retval EFI_UNSUPPORTED The device specified by ControllerHandle and + RemainingDevicePath is not supported by the driver specified by This. +**/ +EFI_STATUS +EFIAPI +IsaBusDriverBindingSupported ( + IN EFI_DRIVER_BINDING_PROTOCOL *This, + IN EFI_HANDLE Controller, + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath + ) +{ + EFI_STATUS Status; + VOID *Instance; + + Status = gBS->OpenProtocol ( + Controller, + &gEfiIsaHcProtocolGuid, + &Instance, + This->DriverBindingHandle, + Controller, + EFI_OPEN_PROTOCOL_BY_DRIVER + ); + if (!EFI_ERROR (Status)) { + gBS->CloseProtocol ( + Controller, + &gEfiIsaHcProtocolGuid, + This->DriverBindingHandle, + Controller + ); + } + + if (EFI_ERROR (Status)) { + return Status; + } + + Status = gBS->OpenProtocol ( + Controller, + &gEfiDevicePathProtocolGuid, + &Instance, + This->DriverBindingHandle, + Controller, + EFI_OPEN_PROTOCOL_BY_DRIVER + ); + if (!EFI_ERROR (Status)) { + gBS->CloseProtocol ( + Controller, + &gEfiDevicePathProtocolGuid, + This->DriverBindingHandle, + Controller + ); + } + + return Status; +} + +ISA_BUS_CHILD_PRIVATE_DATA mIsaBusChildPrivateTemplate = { + ISA_BUS_CHILD_PRIVATE_DATA_SIGNATURE, + FALSE +}; + +/** + Creates a child handle and installs a protocol. + + The CreateChild() function installs a protocol on ChildHandle. + If ChildHandle is a pointer to NULL, then a new handle is created and returned in ChildHandle. + If ChildHandle is not a pointer to NULL, then the protocol installs on the existing ChildHandle. + + @param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. + @param ChildHandle Pointer to the handle of the child to create. If it is NULL, + then a new handle is created. If it is a pointer to an existing UEFI handle, + then the protocol is added to the existing UEFI handle. + + @retval EFI_SUCCES The protocol was added to ChildHandle. + @retval EFI_INVALID_PARAMETER ChildHandle is NULL. + @retval EFI_OUT_OF_RESOURCES There are not enough resources availabe to create + the child + @retval other The child handle was not created + +**/ +EFI_STATUS +EFIAPI +IsaBusCreateChild ( + IN EFI_SERVICE_BINDING_PROTOCOL *This, + IN OUT EFI_HANDLE *ChildHandle + ) +{ + EFI_STATUS Status; + ISA_BUS_PRIVATE_DATA *Private; + EFI_ISA_HC_PROTOCOL *IsaHc; + ISA_BUS_CHILD_PRIVATE_DATA *Child; + + Private = ISA_BUS_PRIVATE_DATA_FROM_THIS (This); + + Child = AllocateCopyPool (sizeof (mIsaBusChildPrivateTemplate), &mIsaBusChildPrivateTemplate); + if (Child == NULL) { + return EFI_OUT_OF_RESOURCES; + } + + Status = gBS->InstallMultipleProtocolInterfaces ( + ChildHandle, + &gEfiIsaHcProtocolGuid, Private->IsaHc, + &gEfiCallerIdGuid, Child, + NULL + ); + if (EFI_ERROR (Status)) { + FreePool (Child); + return Status; + } + + return gBS->OpenProtocol ( + Private->IsaHcHandle, + &gEfiIsaHcProtocolGuid, + (VOID **) &IsaHc, + gIsaBusDriverBinding.DriverBindingHandle, + *ChildHandle, + EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER + ); +} + +/** + Destroys a child handle with a protocol installed on it. + + The DestroyChild() function does the opposite of CreateChild(). It removes a protocol + that was installed by CreateChild() from ChildHandle. If the removed protocol is the + last protocol on ChildHandle, then ChildHandle is destroyed. + + @param This Pointer to the EFI_SERVICE_BINDING_PROTOCOL instance. + @param ChildHandle Handle of the child to destroy + + @retval EFI_SUCCES The protocol was removed from ChildHandle. + @retval EFI_UNSUPPORTED ChildHandle does not support the protocol that is being removed. + @retval EFI_INVALID_PARAMETER Child handle is NULL. + @retval EFI_ACCESS_DENIED The protocol could not be removed from the ChildHandle + because its services are being used. + @retval other The child handle was not destroyed + +**/ +EFI_STATUS +EFIAPI +IsaBusDestroyChild ( + IN EFI_SERVICE_BINDING_PROTOCOL *This, + IN EFI_HANDLE ChildHandle + ) +{ + EFI_STATUS Status; + ISA_BUS_PRIVATE_DATA *Private; + EFI_ISA_HC_PROTOCOL *IsaHc; + ISA_BUS_CHILD_PRIVATE_DATA *Child; + + Private = ISA_BUS_PRIVATE_DATA_FROM_THIS (This); + + Status = gBS->OpenProtocol ( + ChildHandle, + &gEfiCallerIdGuid, + (VOID **) &Child, + gIsaBusDriverBinding.DriverBindingHandle, + ChildHandle, + EFI_OPEN_PROTOCOL_GET_PROTOCOL + ); + if (EFI_ERROR (Status)) { + return Status; + } + + ASSERT (Child->Signature == ISA_BUS_CHILD_PRIVATE_DATA_SIGNATURE); + + if (Child->InDestroying) { + return EFI_SUCCESS; + } + + Child->InDestroying = TRUE; + Status = gBS->CloseProtocol ( + Private->IsaHcHandle, + &gEfiIsaHcProtocolGuid, + gIsaBusDriverBinding.DriverBindingHandle, + ChildHandle + ); + ASSERT_EFI_ERROR (Status); + if (!EFI_ERROR (Status)) { + Status = gBS->UninstallMultipleProtocolInterfaces ( + ChildHandle, + &gEfiIsaHcProtocolGuid, Private->IsaHc, + &gEfiCallerIdGuid, Child, + NULL + ); + if (EFI_ERROR (Status)) { + gBS->OpenProtocol ( + Private->IsaHcHandle, + &gEfiIsaHcProtocolGuid, + (VOID **) &IsaHc, + gIsaBusDriverBinding.DriverBindingHandle, + ChildHandle, + EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER + ); + } + } + + if (EFI_ERROR (Status)) { + Child->InDestroying = FALSE; + } else { + FreePool (Child); + } + + return Status; +} + +ISA_BUS_PRIVATE_DATA mIsaBusPrivateTemplate = { + ISA_BUS_PRIVATE_DATA_SIGNATURE, + { + IsaBusCreateChild, + IsaBusDestroyChild + } +}; + +/** + Starts a device controller or a bus controller. + + @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. + @param[in] ControllerHandle The handle of the controller to start. This handle + must support a protocol interface that supplies + an I/O abstraction to the driver. + @param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This + parameter is ignored by device drivers, and is optional for bus + drivers. For a bus driver, if this parameter is NULL, then handles + for all the children of Controller are created by this driver. + If this parameter is not NULL and the first Device Path Node is + not the End of Device Path Node, then only the handle for the + child device specified by the first Device Path Node of + RemainingDevicePath is created by this driver. + If the first Device Path Node of RemainingDevicePath is + the End of Device Path Node, no child handle is created by this + driver. + + @retval EFI_SUCCESS The device was started. + @retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented. + @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. + @retval Others The driver failded to start the device. + +**/ +EFI_STATUS +EFIAPI +IsaBusDriverBindingStart ( + IN EFI_DRIVER_BINDING_PROTOCOL *This, + IN EFI_HANDLE Controller, + IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath + ) +{ + EFI_STATUS Status; + EFI_DEVICE_PATH_PROTOCOL *DevicePath; + ISA_BUS_PRIVATE_DATA *Private; + + Status = gBS->OpenProtocol ( + Controller, + &gEfiIsaHcProtocolGuid, + (VOID **) &mIsaBusPrivateTemplate.IsaHc, + This->DriverBindingHandle, + Controller, + EFI_OPEN_PROTOCOL_BY_DRIVER + ); + if (EFI_ERROR (Status)) { + return Status; + } + + Status = gBS->OpenProtocol ( + Controller, + &gEfiDevicePathProtocolGuid, + (VOID **) &DevicePath, + This->DriverBindingHandle, + Controller, + EFI_OPEN_PROTOCOL_BY_DRIVER + ); + if (EFI_ERROR (Status)) { + gBS->CloseProtocol ( + Controller, + &gEfiIsaHcProtocolGuid, + This->DriverBindingHandle, + Controller + ); + return Status; + } + + Private = AllocateCopyPool (sizeof (mIsaBusPrivateTemplate), &mIsaBusPrivateTemplate); + ASSERT (Private != NULL); + + Private->IsaHcHandle = Controller; + + Status = gBS->InstallMultipleProtocolInterfaces ( + &Controller, + &gEfiIsaHcServiceBindingProtocolGuid, &Private->ServiceBinding, + NULL + ); + ASSERT_EFI_ERROR (Status); + + return Status; +} + +/** + Stops a device controller or a bus controller. + + @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance. + @param[in] ControllerHandle A handle to the device being stopped. The handle must + support a bus specific I/O protocol for the driver + to use to stop the device. + @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer. + @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL + if NumberOfChildren is 0. + + @retval EFI_SUCCESS The device was stopped. + @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error. + +**/ +EFI_STATUS +EFIAPI +IsaBusDriverBindingStop ( + IN EFI_DRIVER_BINDING_PROTOCOL *This, + IN EFI_HANDLE Controller, + IN UINTN NumberOfChildren, + IN EFI_HANDLE *ChildHandleBuffer + ) +{ + EFI_STATUS Status; + EFI_SERVICE_BINDING_PROTOCOL *ServiceBinding; + ISA_BUS_PRIVATE_DATA *Private; + UINTN Index; + BOOLEAN AllChildrenStopped; + + Status = gBS->OpenProtocol ( + Controller, + &gEfiIsaHcServiceBindingProtocolGuid, + (VOID **) &ServiceBinding, + This->DriverBindingHandle, + Controller, + EFI_OPEN_PROTOCOL_GET_PROTOCOL + ); + if (EFI_ERROR (Status)) { + return Status; + } + + Private = ISA_BUS_PRIVATE_DATA_FROM_THIS (ServiceBinding); + + if (NumberOfChildren == 0) { + Status = gBS->UninstallMultipleProtocolInterfaces ( + Controller, + &gEfiIsaHcServiceBindingProtocolGuid, &Private->ServiceBinding, + NULL + ); + if (!EFI_ERROR (Status)) { + gBS->CloseProtocol ( + Controller, + &gEfiDevicePathProtocolGuid, + This->DriverBindingHandle, + Controller + ); + gBS->CloseProtocol ( + Controller, + &gEfiIsaHcProtocolGuid, + This->DriverBindingHandle, + Controller + ); + FreePool (Private); + } + + return Status; + } + + AllChildrenStopped = TRUE; + for (Index = 0; Index < NumberOfChildren; Index++) { + Status = ServiceBinding->DestroyChild (ServiceBinding, ChildHandleBuffer[Index]); + if (EFI_ERROR (Status)) { + AllChildrenStopped = FALSE; + } + } + + return AllChildrenStopped ? EFI_SUCCESS : EFI_DEVICE_ERROR; +} + +// +// ISA Bus Driver Binding Protocol Instance +// +EFI_DRIVER_BINDING_PROTOCOL gIsaBusDriverBinding = { + IsaBusDriverBindingSupported, + IsaBusDriverBindingStart, + IsaBusDriverBindingStop, + 0x10, + NULL, + NULL +}; + +/** + Entry point of the IsaBusDxe driver. + + @param[in] ImageHandle The firmware allocated handle for the EFI image. + @param[in] SystemTable A pointer to the EFI System Table. + + @retval EFI_SUCCESS The entry point is executed successfully. + @retval other Some error occurs when executing this entry point. +**/ +EFI_STATUS +EFIAPI +InitializeIsaBus ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + EFI_STATUS Status; + + Status = EfiLibInstallDriverBindingComponentName2 ( + ImageHandle, + SystemTable, + &gIsaBusDriverBinding, + ImageHandle, + &gIsaBusComponentName, + &gIsaBusComponentName2 + ); + ASSERT_EFI_ERROR (Status); + return Status; +} diff --git a/Bus/Isa/IsaBusDxe/IsaBusDxe.h b/Bus/Isa/IsaBusDxe/IsaBusDxe.h new file mode 100644 index 0000000000..86f6f56a61 --- /dev/null +++ b/Bus/Isa/IsaBusDxe/IsaBusDxe.h @@ -0,0 +1,46 @@ +/** @file + Header file for the ISA BUS driver. + + Copyright (c) 2015, Intel Corporation. All rights reserved.
+ This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + + +**/ + +#ifndef _ISA_BUS_H_ +#define _ISA_BUS_H_ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +typedef struct { + UINT32 Signature; + EFI_SERVICE_BINDING_PROTOCOL ServiceBinding; + EFI_ISA_HC_PROTOCOL *IsaHc; ///< ISA HC protocol produced by the ISA Host Controller driver + EFI_HANDLE IsaHcHandle; ///< ISA HC handle created by the ISA Host Controller driver +} ISA_BUS_PRIVATE_DATA; +#define ISA_BUS_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('_', 'i', 's', 'b') +#define ISA_BUS_PRIVATE_DATA_FROM_THIS(a) CR (a, ISA_BUS_PRIVATE_DATA, ServiceBinding, ISA_BUS_PRIVATE_DATA_SIGNATURE) + +typedef struct { + UINT32 Signature; + BOOLEAN InDestroying; ///< Flag to avoid DestroyChild() re-entry. +} ISA_BUS_CHILD_PRIVATE_DATA; +#define ISA_BUS_CHILD_PRIVATE_DATA_SIGNATURE SIGNATURE_32 ('_', 'i', 's', 'c') + +extern EFI_DRIVER_BINDING_PROTOCOL gIsaBusDriverBinding; + +#endif diff --git a/Bus/Isa/IsaBusDxe/IsaBusDxe.inf b/Bus/Isa/IsaBusDxe/IsaBusDxe.inf new file mode 100644 index 0000000000..df3428b38c --- /dev/null +++ b/Bus/Isa/IsaBusDxe/IsaBusDxe.inf @@ -0,0 +1,59 @@ +## @file +# ISA Bus driver to manage the child devices attached to the ISA Host Controller. +# +# This driver follows UEFI driver model and layers on ISA HC protocol defined +# in PI spec 1.2.1. It consumes the ISA Host Controller protocol produced by +# the ISA Host Controller and installs the ISA Host Controller Service Binding +# protocol on the ISA Host Controller's handle. +# +# Copyright (c) 2015, Intel Corporation. All rights reserved.
+# +# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +# +## + +[Defines] + INF_VERSION = 0x00010005 + BASE_NAME = IsaBusDxe + FILE_GUID = DCBE6D66-D928-4138-8041-358F35CBCF80 + MODULE_TYPE = UEFI_DRIVER + VERSION_STRING = 1.0 + ENTRY_POINT = InitializeIsaBus + +# +# The following information is for reference only and not required by the build tools. +# +# VALID_ARCHITECTURES = IA32 X64 IPF EBC +# +# DRIVER_BINDING = gIsaBusDriverBinding +# COMPONENT_NAME = gIsaBusComponentName +# COMPONENT_NAME2 = gIsaBusComponentName2 +# + +[Sources] + IsaBusDxe.h + IsaBusDxe.c + ComponentName.h + ComponentName.c + +[Packages] + MdePkg/MdePkg.dec + +[LibraryClasses] + UefiDriverEntryPoint + UefiBootServicesTableLib + BaseLib + BaseMemoryLib + MemoryAllocationLib + UefiLib + DebugLib + +[Protocols] + gEfiIsaHcProtocolGuid + gEfiIsaHcServiceBindingProtocolGuid diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc index d0832bc215..032d1c7ff0 100644 --- a/MdeModulePkg/MdeModulePkg.dsc +++ b/MdeModulePkg/MdeModulePkg.dsc @@ -231,6 +231,7 @@ MdeModulePkg/Bus/I2c/I2cDxe/I2cBusDxe.inf MdeModulePkg/Bus/I2c/I2cDxe/I2cHostDxe.inf MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.inf + MdeModulePkg/Bus/Isa/IsaBusDxe/IsaBusDxe.inf MdeModulePkg/Core/Dxe/DxeMain.inf {