X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=EdkModulePkg%2FBus%2FPci%2FPciBus%2FDxe%2Fpcibus.c;fp=EdkModulePkg%2FBus%2FPci%2FPciBus%2FDxe%2Fpcibus.c;h=0000000000000000000000000000000000000000;hp=a874b8a85cec54c690a1c1644e20f5ef1cef0c29;hb=808def96aa4589fba9c2d0ea55837754a3b7a4f7;hpb=9216450d1143056a50a5f916984a2d7faf590488 diff --git a/EdkModulePkg/Bus/Pci/PciBus/Dxe/pcibus.c b/EdkModulePkg/Bus/Pci/PciBus/Dxe/pcibus.c deleted file mode 100644 index a874b8a85c..0000000000 --- a/EdkModulePkg/Bus/Pci/PciBus/Dxe/pcibus.c +++ /dev/null @@ -1,332 +0,0 @@ -/*++ - -Copyright (c) 2006 - 2007, 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. - -Module Name: - - PciBus.c - -Abstract: - - PCI Bus Driver - -Revision History - ---*/ - -#include "pcibus.h" - -// -// PCI Bus Driver Global Variables -// - -EFI_DRIVER_BINDING_PROTOCOL gPciBusDriverBinding = { - PciBusDriverBindingSupported, - PciBusDriverBindingStart, - PciBusDriverBindingStop, - 0xa, - NULL, - NULL -}; - -EFI_HANDLE gPciHostBrigeHandles[PCI_MAX_HOST_BRIDGE_NUM]; -UINTN gPciHostBridgeNumber; -BOOLEAN gFullEnumeration; -UINT64 gAllOne = 0xFFFFFFFFFFFFFFFFULL; -UINT64 gAllZero = 0; - -EFI_PCI_PLATFORM_PROTOCOL *gPciPlatformProtocol; - -// -// PCI Bus Driver Support Functions -// -EFI_STATUS -EFIAPI -PciBusEntryPoint ( - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - ) -/*++ - -Routine Description: - - Initialize the global variables - publish the driver binding protocol - -Arguments: - - IN EFI_HANDLE ImageHandle, - IN EFI_SYSTEM_TABLE *SystemTable - -Returns: - - EFI_SUCCESS - EFI_DEVICE_ERROR - ---*/ -// TODO: ImageHandle - add argument and description to function comment -// TODO: SystemTable - add argument and description to function comment -{ - EFI_STATUS Status; - - InitializePciDevicePool (); - - gFullEnumeration = TRUE; - - gPciHostBridgeNumber = 0; - - InstallHotPlugRequestProtocol (&Status); - return Status; -} - -EFI_STATUS -EFIAPI -PciBusDriverBindingSupported ( - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE Controller, - IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath - ) -/*++ - -Routine Description: - - Check to see if pci bus driver supports the given controller - -Arguments: - - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE Controller, - IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath - -Returns: - - EFI_SUCCESS - ---*/ -// TODO: This - add argument and description to function comment -// TODO: Controller - add argument and description to function comment -// TODO: RemainingDevicePath - add argument and description to function comment -// TODO: EFI_UNSUPPORTED - add return value to function comment -{ - EFI_STATUS Status; - EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath; - EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo; - EFI_DEV_PATH_PTR Node; - - if (RemainingDevicePath != NULL) { - Node.DevPath = RemainingDevicePath; - if (Node.DevPath->Type != HARDWARE_DEVICE_PATH || - Node.DevPath->SubType != HW_PCI_DP || - DevicePathNodeLength(Node.DevPath) != sizeof(PCI_DEVICE_PATH)) { - return EFI_UNSUPPORTED; - } - } - // - // Open the IO Abstraction(s) needed to perform the supported test - // - Status = gBS->OpenProtocol ( - Controller, - &gEfiDevicePathProtocolGuid, - (VOID **) &ParentDevicePath, - This->DriverBindingHandle, - Controller, - EFI_OPEN_PROTOCOL_BY_DRIVER - ); - if (Status == EFI_ALREADY_STARTED) { - return EFI_SUCCESS; - } - - if (EFI_ERROR (Status)) { - return Status; - } - - gBS->CloseProtocol ( - Controller, - &gEfiDevicePathProtocolGuid, - This->DriverBindingHandle, - Controller - ); - - Status = gBS->OpenProtocol ( - Controller, - &gEfiPciRootBridgeIoProtocolGuid, - (VOID **) &PciRootBridgeIo, - This->DriverBindingHandle, - Controller, - EFI_OPEN_PROTOCOL_BY_DRIVER - ); - if (Status == EFI_ALREADY_STARTED) { - return EFI_SUCCESS; - } - - if (EFI_ERROR (Status)) { - return Status; - } - - gBS->CloseProtocol ( - Controller, - &gEfiPciRootBridgeIoProtocolGuid, - This->DriverBindingHandle, - Controller - ); - - return EFI_SUCCESS; -} - -EFI_STATUS -EFIAPI -PciBusDriverBindingStart ( - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE Controller, - IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath - ) -/*++ - -Routine Description: - - Start to management the controller passed in - -Arguments: - - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE Controller, - IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath - -Returns: - - ---*/ -// TODO: This - add argument and description to function comment -// TODO: Controller - add argument and description to function comment -// TODO: RemainingDevicePath - add argument and description to function comment -// TODO: EFI_SUCCESS - add return value to function comment -{ - EFI_STATUS Status; - - // - // If PCI Platform protocol is available, get it now. - // If the platform implements this, it must be installed before BDS phase - // - gPciPlatformProtocol = NULL; - gBS->LocateProtocol ( - &gEfiPciPlatformProtocolGuid, - NULL, - (VOID **) &gPciPlatformProtocol - ); - - gFullEnumeration = (BOOLEAN) ((SearchHostBridgeHandle (Controller) ? FALSE : TRUE)); - - // - // Enumerate the entire host bridge - // After enumeration, a database that records all the device information will be created - // - // - Status = PciEnumerator (Controller); - - if (EFI_ERROR (Status)) { - return Status; - } - - // - // Enable PCI device specified by remaining device path. BDS or other driver can call the - // start more than once. - // - - StartPciDevices (Controller, RemainingDevicePath); - - return EFI_SUCCESS; -} - -EFI_STATUS -EFIAPI -PciBusDriverBindingStop ( - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE Controller, - IN UINTN NumberOfChildren, - IN EFI_HANDLE *ChildHandleBuffer - ) -/*++ - -Routine Description: - - Stop one or more children created at start of pci bus driver - if all the the children get closed, close the protocol - -Arguments: - - IN EFI_DRIVER_BINDING_PROTOCOL *This, - IN EFI_HANDLE Controller, - IN UINTN NumberOfChildren, - IN EFI_HANDLE *ChildHandleBuffer - -Returns: - - ---*/ -// TODO: This - add argument and description to function comment -// TODO: Controller - add argument and description to function comment -// TODO: NumberOfChildren - add argument and description to function comment -// TODO: ChildHandleBuffer - add argument and description to function comment -// TODO: EFI_SUCCESS - add return value to function comment -// TODO: EFI_DEVICE_ERROR - add return value to function comment -// TODO: EFI_SUCCESS - add return value to function comment -{ - EFI_STATUS Status; - UINTN Index; - BOOLEAN AllChildrenStopped; - - if (NumberOfChildren == 0) { - // - // Close the bus driver - // - gBS->CloseProtocol ( - Controller, - &gEfiDevicePathProtocolGuid, - This->DriverBindingHandle, - Controller - ); - gBS->CloseProtocol ( - Controller, - &gEfiPciRootBridgeIoProtocolGuid, - This->DriverBindingHandle, - Controller - ); - - DestroyRootBridgeByHandle ( - Controller - ); - - return EFI_SUCCESS; - } - - // - // Stop all the children - // - - AllChildrenStopped = TRUE; - - for (Index = 0; Index < NumberOfChildren; Index++) { - - // - // De register all the pci device - // - Status = DeRegisterPciDevice (Controller, ChildHandleBuffer[Index]); - - if (EFI_ERROR (Status)) { - AllChildrenStopped = FALSE; - } - } - - if (!AllChildrenStopped) { - return EFI_DEVICE_ERROR; - } - - return EFI_SUCCESS; -}