+++ /dev/null
-/** @file\r
- ISA Floppy Disk UEFI Driver conforming to the UEFI driver model\r
-\r
- 1. Support two types diskette drive\r
- 1.44M drive and 2.88M drive (and now only support 1.44M)\r
- 2. Support two diskette drives per floppy disk controller\r
- 3. Use DMA channel 2 to transfer data\r
- 4. Do not use interrupt\r
- 5. Support diskette change line signal and write protect\r
-\r
-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
-SPDX-License-Identifier: BSD-2-Clause-Patent\r
-\r
-**/\r
-\r
-#include "IsaFloppy.h"\r
-\r
-LIST_ENTRY mControllerHead = INITIALIZE_LIST_HEAD_VARIABLE (mControllerHead);\r
-\r
-//\r
-// ISA Floppy Driver Binding Protocol\r
-//\r
-EFI_DRIVER_BINDING_PROTOCOL gFdcControllerDriver = {\r
- FdcControllerDriverSupported,\r
- FdcControllerDriverStart,\r
- FdcControllerDriverStop,\r
- 0xa,\r
- NULL,\r
- NULL\r
-};\r
-\r
-\r
-/**\r
- The main Entry Point for this driver.\r
-\r
- @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
- @param[in] SystemTable A pointer to the EFI System Table.\r
-\r
- @retval EFI_SUCCESS The entry point is executed successfully.\r
- @retval other Some error occurs when executing this entry point.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-InitializeIsaFloppy(\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
- )\r
-{\r
- EFI_STATUS Status;\r
-\r
- //\r
- // Install driver model protocol(s).\r
- //\r
- Status = EfiLibInstallDriverBindingComponentName2 (\r
- ImageHandle,\r
- SystemTable,\r
- &gFdcControllerDriver,\r
- ImageHandle,\r
- &gIsaFloppyComponentName,\r
- &gIsaFloppyComponentName2\r
- );\r
- ASSERT_EFI_ERROR (Status);\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Test if the controller is a floppy disk drive device\r
-\r
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
- @param[in] Controller The handle of the controller to test.\r
- @param[in] RemainingDevicePath A pointer to the remaining portion of a device path.\r
-\r
- @retval EFI_SUCCESS The device is supported by this driver.\r
- @retval EFI_ALREADY_STARTED The device is already being managed by this driver.\r
- @retval EFI_ACCESS_DENIED The device is already being managed by a different driver\r
- or an application that requires exclusive access.\r
- @retval EFI_UNSUPPORTED The device is is not supported by this driver.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-FdcControllerDriverSupported (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE Controller,\r
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EFI_ISA_IO_PROTOCOL *IsaIo;\r
- EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
-\r
- //\r
- // Ignore the parameter RemainingDevicePath because this is a device driver.\r
- //\r
-\r
- //\r
- // Open the device path protocol\r
- //\r
- Status = gBS->OpenProtocol (\r
- Controller,\r
- &gEfiDevicePathProtocolGuid,\r
- (VOID **) &ParentDevicePath,\r
- This->DriverBindingHandle,\r
- Controller,\r
- EFI_OPEN_PROTOCOL_BY_DRIVER\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiDevicePathProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
-\r
- //\r
- // Open the ISA I/O Protocol\r
- //\r
- Status = gBS->OpenProtocol (\r
- Controller,\r
- &gEfiIsaIoProtocolGuid,\r
- (VOID **) &IsaIo,\r
- This->DriverBindingHandle,\r
- Controller,\r
- EFI_OPEN_PROTOCOL_BY_DRIVER\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
- //\r
- // Use the ISA I/O Protocol to see if Controller is a floppy disk drive device\r
- //\r
- Status = EFI_SUCCESS;\r
- if (IsaIo->ResourceList->Device.HID != EISA_PNP_ID (0x604)) {\r
- Status = EFI_UNSUPPORTED;\r
- }\r
- //\r
- // Close the ISA I/O Protocol\r
- //\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiIsaIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Start this driver on Controller.\r
-\r
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
- @param[in] ControllerHandle The handle of the controller to start. This handle\r
- must support a protocol interface that supplies\r
- an I/O abstraction to the driver.\r
- @param[in] RemainingDevicePath A pointer to the remaining portion of a device path.\r
- This parameter is ignored by device drivers, and is optional for bus drivers.\r
-\r
- @retval EFI_SUCCESS The device was started.\r
- @retval EFI_DEVICE_ERROR The device could not be started due to a device error.\r
- Currently not implemented.\r
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
- @retval Others The driver failded to start the device.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-FdcControllerDriverStart (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE Controller,\r
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
- )\r
-{\r
- EFI_STATUS Status;\r
- FDC_BLK_IO_DEV *FdcDev;\r
- EFI_ISA_IO_PROTOCOL *IsaIo;\r
- UINTN Index;\r
- LIST_ENTRY *List;\r
- BOOLEAN Found;\r
- EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;\r
-\r
- FdcDev = NULL;\r
- IsaIo = NULL;\r
-\r
- //\r
- // Open the device path protocol\r
- //\r
- Status = gBS->OpenProtocol (\r
- Controller,\r
- &gEfiDevicePathProtocolGuid,\r
- (VOID **) &ParentDevicePath,\r
- This->DriverBindingHandle,\r
- Controller,\r
- EFI_OPEN_PROTOCOL_BY_DRIVER\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
- //\r
- // Report enable progress code\r
- //\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_PROGRESS_CODE,\r
- EFI_PERIPHERAL_REMOVABLE_MEDIA | EFI_P_PC_ENABLE,\r
- ParentDevicePath\r
- );\r
-\r
- //\r
- // Open the ISA I/O Protocol\r
- //\r
- Status = gBS->OpenProtocol (\r
- Controller,\r
- &gEfiIsaIoProtocolGuid,\r
- (VOID **) &IsaIo,\r
- This->DriverBindingHandle,\r
- Controller,\r
- EFI_OPEN_PROTOCOL_BY_DRIVER\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto Done;\r
- }\r
- //\r
- // Allocate the floppy device's Device structure\r
- //\r
- FdcDev = AllocateZeroPool (sizeof (FDC_BLK_IO_DEV));\r
- if (FdcDev == NULL) {\r
- goto Done;\r
- }\r
- //\r
- // Initialize the floppy device's device structure\r
- //\r
- FdcDev->Signature = FDC_BLK_IO_DEV_SIGNATURE;\r
- FdcDev->Handle = Controller;\r
- FdcDev->IsaIo = IsaIo;\r
- FdcDev->Disk = (EFI_FDC_DISK) IsaIo->ResourceList->Device.UID;\r
- FdcDev->Cache = NULL;\r
- FdcDev->Event = NULL;\r
- FdcDev->ControllerState = NULL;\r
- FdcDev->DevicePath = ParentDevicePath;\r
-\r
- FdcDev->ControllerNameTable = NULL;\r
- AddName (FdcDev);\r
-\r
- //\r
- // Look up the base address of the Floppy Disk Controller which controls this floppy device\r
- //\r
- for (Index = 0; FdcDev->IsaIo->ResourceList->ResourceItem[Index].Type != EfiIsaAcpiResourceEndOfList; Index++) {\r
- if (FdcDev->IsaIo->ResourceList->ResourceItem[Index].Type == EfiIsaAcpiResourceIo) {\r
- FdcDev->BaseAddress = (UINT16) FdcDev->IsaIo->ResourceList->ResourceItem[Index].StartRange;\r
- }\r
- }\r
- //\r
- // Maintain the list of floppy disk controllers\r
- //\r
- Found = FALSE;\r
- List = mControllerHead.ForwardLink;\r
- while (List != &mControllerHead) {\r
- FdcDev->ControllerState = FLOPPY_CONTROLLER_FROM_LIST_ENTRY (List);\r
- if (FdcDev->BaseAddress == FdcDev->ControllerState->BaseAddress) {\r
- Found = TRUE;\r
- break;\r
- }\r
-\r
- List = List->ForwardLink;\r
- }\r
-\r
- if (!Found) {\r
- //\r
- // A new floppy disk controller controlling this floppy disk drive is found\r
- //\r
- FdcDev->ControllerState = AllocatePool (sizeof (FLOPPY_CONTROLLER_CONTEXT));\r
- if (FdcDev->ControllerState == NULL) {\r
- goto Done;\r
- }\r
-\r
- FdcDev->ControllerState->Signature = FLOPPY_CONTROLLER_CONTEXT_SIGNATURE;\r
- FdcDev->ControllerState->FddResetPerformed = FALSE;\r
- FdcDev->ControllerState->NeedRecalibrate = FALSE;\r
- FdcDev->ControllerState->BaseAddress = FdcDev->BaseAddress;\r
- FdcDev->ControllerState->NumberOfDrive = 0;\r
-\r
- InsertTailList (&mControllerHead, &FdcDev->ControllerState->Link);\r
- }\r
- //\r
- // Create a timer event for each floppy disk drive device.\r
- // This timer event is used to control the motor on and off\r
- //\r
- Status = gBS->CreateEvent (\r
- EVT_TIMER | EVT_NOTIFY_SIGNAL,\r
- TPL_NOTIFY,\r
- FddTimerProc,\r
- FdcDev,\r
- &FdcDev->Event\r
- );\r
- if (EFI_ERROR (Status)) {\r
- goto Done;\r
- }\r
- //\r
- // Reset the Floppy Disk Controller\r
- //\r
- if (!FdcDev->ControllerState->FddResetPerformed) {\r
- FdcDev->ControllerState->FddResetPerformed = TRUE;\r
- FdcDev->ControllerState->FddResetStatus = FddReset (FdcDev);\r
- }\r
-\r
- if (EFI_ERROR (FdcDev->ControllerState->FddResetStatus)) {\r
- Status = EFI_DEVICE_ERROR;\r
- goto Done;\r
- }\r
-\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_PROGRESS_CODE,\r
- EFI_PERIPHERAL_REMOVABLE_MEDIA | EFI_P_PC_PRESENCE_DETECT,\r
- ParentDevicePath\r
- );\r
-\r
- //\r
- // Discover the Floppy Drive\r
- //\r
- Status = DiscoverFddDevice (FdcDev);\r
- if (EFI_ERROR (Status)) {\r
- Status = EFI_DEVICE_ERROR;\r
- goto Done;\r
- }\r
- //\r
- // Install protocol interfaces for the serial device.\r
- //\r
- Status = gBS->InstallMultipleProtocolInterfaces (\r
- &Controller,\r
- &gEfiBlockIoProtocolGuid,\r
- &FdcDev->BlkIo,\r
- NULL\r
- );\r
- if (!EFI_ERROR (Status)) {\r
- FdcDev->ControllerState->NumberOfDrive++;\r
- }\r
-\r
-Done:\r
- if (EFI_ERROR (Status)) {\r
-\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_ERROR_CODE | EFI_ERROR_MINOR,\r
- EFI_PERIPHERAL_REMOVABLE_MEDIA | EFI_P_EC_CONTROLLER_ERROR,\r
- ParentDevicePath\r
- );\r
-\r
- //\r
- // If a floppy drive device structure was allocated, then free it\r
- //\r
- if (FdcDev != NULL) {\r
- if (FdcDev->Event != NULL) {\r
- //\r
- // Close the event for turning the motor off\r
- //\r
- gBS->CloseEvent (FdcDev->Event);\r
- }\r
-\r
- FreeUnicodeStringTable (FdcDev->ControllerNameTable);\r
- FreePool (FdcDev);\r
- }\r
-\r
- //\r
- // Close the ISA I/O Protocol\r
- //\r
- if (IsaIo != NULL) {\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiIsaIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- }\r
-\r
- //\r
- // Close the device path protocol\r
- //\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiDevicePathProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
- }\r
-\r
- return Status;\r
-}\r
-\r
-/**\r
- Stop this driver on ControllerHandle.\r
-\r
- @param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.\r
- @param[in] ControllerHandle A handle to the device being stopped. The handle must\r
- support a bus specific I/O protocol for the driver\r
- to use to stop the device.\r
- @param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.\r
- @param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL\r
- if NumberOfChildren is 0.\r
-\r
- @retval EFI_SUCCESS The device was stopped.\r
- @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r
-**/\r
-EFI_STATUS\r
-EFIAPI\r
-FdcControllerDriverStop (\r
- IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
- IN EFI_HANDLE Controller,\r
- IN UINTN NumberOfChildren,\r
- IN EFI_HANDLE *ChildHandleBuffer\r
- )\r
-{\r
- EFI_STATUS Status;\r
- EFI_BLOCK_IO_PROTOCOL *BlkIo;\r
- FDC_BLK_IO_DEV *FdcDev;\r
-\r
- //\r
- // Ignore NumberOfChildren since this is a device driver\r
- //\r
-\r
- //\r
- // Get the Block I/O Protocol on Controller\r
- //\r
- Status = gBS->OpenProtocol (\r
- Controller,\r
- &gEfiBlockIoProtocolGuid,\r
- (VOID **) &BlkIo,\r
- This->DriverBindingHandle,\r
- Controller,\r
- EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
- //\r
- // Get the floppy drive device's Device structure\r
- //\r
- FdcDev = FDD_BLK_IO_FROM_THIS (BlkIo);\r
-\r
- //\r
- // Report disable progress code\r
- //\r
- REPORT_STATUS_CODE_WITH_DEVICE_PATH (\r
- EFI_PROGRESS_CODE,\r
- EFI_PERIPHERAL_REMOVABLE_MEDIA | EFI_P_PC_DISABLE,\r
- FdcDev->DevicePath\r
- );\r
-\r
- //\r
- // Uninstall the Block I/O Protocol\r
- //\r
- Status = gBS->UninstallProtocolInterface (\r
- Controller,\r
- &gEfiBlockIoProtocolGuid,\r
- &FdcDev->BlkIo\r
- );\r
- if (EFI_ERROR (Status)) {\r
- return Status;\r
- }\r
-\r
- //\r
- // Close the event for turning the motor off\r
- //\r
- gBS->CloseEvent (FdcDev->Event);\r
-\r
- //\r
- // Turn the motor off on the floppy drive device\r
- //\r
- FddTimerProc (FdcDev->Event, FdcDev);\r
-\r
- //\r
- // Close the device path protocol\r
- //\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiDevicePathProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
-\r
- //\r
- // Close the ISA I/O Protocol\r
- //\r
- gBS->CloseProtocol (\r
- Controller,\r
- &gEfiIsaIoProtocolGuid,\r
- This->DriverBindingHandle,\r
- Controller\r
- );\r
-\r
- //\r
- // Free the controller list if needed\r
- //\r
- FdcDev->ControllerState->NumberOfDrive--;\r
-\r
- //\r
- // Free the cache if one was allocated\r
- //\r
- FdcFreeCache (FdcDev);\r
-\r
- //\r
- // Free the floppy drive device's device structure\r
- //\r
- FreeUnicodeStringTable (FdcDev->ControllerNameTable);\r
- FreePool (FdcDev);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
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