diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciBus.c')
| -rw-r--r-- | IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciBus.c | 368 |
1 files changed, 0 insertions, 368 deletions
diff --git a/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciBus.c b/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciBus.c deleted file mode 100644 index 1a4adf54b9..0000000000 --- a/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciBus.c +++ /dev/null @@ -1,368 +0,0 @@ -/** @file
- Driver Binding functions for PCI Bus module.
-
- Single PCI bus driver instance will manager all PCI Root Bridges in one EFI based firmware,
- since all PCI Root Bridges' resources need to be managed together.
- Supported() function will try to get PCI Root Bridge IO Protocol.
- Start() function will get PCI Host Bridge Resource Allocation Protocol to manage all
- PCI Root Bridges. So it means platform needs install PCI Root Bridge IO protocol for each
- PCI Root Bus and install PCI Host Bridge Resource Allocation Protocol.
-
-Copyright (c) 2006 - 2009, 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 "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];
-EFI_INCOMPATIBLE_PCI_DEVICE_SUPPORT_PROTOCOL *gEfiIncompatiblePciDeviceSupport = NULL;
-UINTN gPciHostBridgeNumber = 0;
-BOOLEAN gFullEnumeration = TRUE;
-UINT64 gAllOne = 0xFFFFFFFFFFFFFFFFULL;
-UINT64 gAllZero = 0;
-
-EFI_PCI_PLATFORM_PROTOCOL *gPciPlatformProtocol;
-
-GLOBAL_REMOVE_IF_UNREFERENCED EFI_PCI_HOTPLUG_REQUEST_PROTOCOL mPciHotPlugRequest = {
- PciHotPlugRequestNotify
-};
-
-/**
- The Entry Point for PCI Bus module. The user code starts with this function.
-
- Installs driver module protocols and. Creates virtual device handles for ConIn,
- ConOut, and StdErr. Installs Simple Text In protocol, Simple Text In Ex protocol,
- Simple Pointer protocol, Absolute Pointer protocol on those virtual handlers.
- Installs Graphics Output protocol and/or UGA Draw protocol if needed.
-
- @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 occurred when executing this entry point.
-
-**/
-EFI_STATUS
-EFIAPI
-PciBusEntryPoint (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
- EFI_HANDLE Handle;
-
- //
- // Initializes PCI devices pool
- //
- InitializePciDevicePool ();
-
- //
- // Install driver model protocol(s).
- //
- Status = EfiLibInstallDriverBindingComponentName2 (
- ImageHandle,
- SystemTable,
- &gPciBusDriverBinding,
- ImageHandle,
- &gPciBusComponentName,
- &gPciBusComponentName2
- );
- ASSERT_EFI_ERROR (Status);
-
- if (FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {
- //
- // If Hot Plug is supported, install EFI PCI Hot Plug Request protocol.
- //
- Handle = NULL;
- Status = gBS->InstallProtocolInterface (
- &Handle,
- &gEfiPciHotPlugRequestProtocolGuid,
- EFI_NATIVE_INTERFACE,
- &mPciHotPlugRequest
- );
- }
-
- return Status;
-}
-
-/**
- Test to see if this driver supports ControllerHandle. Any ControllerHandle
- than contains a gEfiPciRootBridgeIoProtocolGuid protocol can be supported.
-
- @param This Protocol instance pointer.
- @param Controller Handle of device to test.
- @param RemainingDevicePath Optional parameter use to pick a specific child.
- device to start.
-
- @retval EFI_SUCCESS This driver supports this device.
- @retval EFI_ALREADY_STARTED This driver is already running on this device.
- @retval other This driver does not support this device.
-
-**/
-EFI_STATUS
-EFIAPI
-PciBusDriverBindingSupported (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- )
-{
- EFI_STATUS Status;
- EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
- EFI_DEV_PATH_PTR Node;
-
- //
- // Check RemainingDevicePath validation
- //
- if (RemainingDevicePath != NULL) {
- //
- // Check if RemainingDevicePath is the End of Device Path Node,
- // if yes, go on checking other conditions
- //
- if (!IsDevicePathEnd (RemainingDevicePath)) {
- //
- // If RemainingDevicePath isn't the End of Device Path Node,
- // check its validation
- //
- 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;
- }
- }
- }
-
- //
- // Check if Pci Root Bridge IO protocol is installed by platform
- //
- 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;
- }
-
- //
- // Close the I/O Abstraction(s) used to perform the supported test
- //
- gBS->CloseProtocol (
- Controller,
- &gEfiPciRootBridgeIoProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
-
- //
- // Open the EFI Device Path protocol 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;
- }
-
- //
- // Close protocol, don't use device path protocol in the Support() function
- //
- gBS->CloseProtocol (
- Controller,
- &gEfiDevicePathProtocolGuid,
- This->DriverBindingHandle,
- Controller
- );
-
- return EFI_SUCCESS;
-}
-
-/**
- Start this driver on ControllerHandle and enumerate Pci bus and start
- all device under PCI bus.
-
- @param This Protocol instance pointer.
- @param Controller Handle of device to bind driver to.
- @param RemainingDevicePath Optional parameter use to pick a specific child.
- device to start.
-
- @retval EFI_SUCCESS This driver is added to ControllerHandle.
- @retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle.
- @retval other This driver does not support this device.
-
-**/
-EFI_STATUS
-EFIAPI
-PciBusDriverBindingStart (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
- )
-{
- EFI_STATUS Status;
-
- //
- // Check RemainingDevicePath validation
- //
- if (RemainingDevicePath != NULL) {
- //
- // Check if RemainingDevicePath is the End of Device Path Node,
- // if yes, return EFI_SUCCESS
- //
- if (IsDevicePathEnd (RemainingDevicePath)) {
- return EFI_SUCCESS;
- }
- }
-
- Status = gBS->LocateProtocol (
- &gEfiIncompatiblePciDeviceSupportProtocolGuid,
- NULL,
- (VOID **) &gEfiIncompatiblePciDeviceSupport
- );
-
- //
- // 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;
- }
-
- //
- // Start all the devices under the entire host bridge.
- //
- StartPciDevices (Controller);
-
- return EFI_SUCCESS;
-}
-
-/**
- Stop this driver on ControllerHandle. Support stoping any child handles
- created by this driver.
-
- @param This Protocol instance pointer.
- @param Controller Handle of device to stop driver on.
- @param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
- children is zero stop the entire bus driver.
- @param ChildHandleBuffer List of Child Handles to Stop.
-
- @retval EFI_SUCCESS This driver is removed ControllerHandle.
- @retval other This driver was not removed from this device.
-
-**/
-EFI_STATUS
-EFIAPI
-PciBusDriverBindingStop (
- IN EFI_DRIVER_BINDING_PROTOCOL *This,
- IN EFI_HANDLE Controller,
- IN UINTN NumberOfChildren,
- IN EFI_HANDLE *ChildHandleBuffer
- )
-{
- 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;
-}
-
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