/** @file\r
- This file declares Pci Host Bridge Resource Allocation Protocol\r
-\r
- Copyright (c) 2007, Intel Corporation\r
+ This file declares Pci Host Bridge Resource Allocation Protocol which \r
+ Provides the basic interfaces to abstract a PCI host bridge resource allocation. \r
+ This protocol is mandatory if the system includes PCI devices.\r
+ \r
+ Copyright (c) 2007 - 2009, 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
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: PciHostBridgeResourceAllocation.h\r
-\r
@par Revision Reference:\r
This protocol is defined in Framework of EFI Pci Host Bridge Resource Allocation Protocol Spec\r
Version 0.9\r
#ifndef _PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_H_\r
#define _PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_H_\r
\r
+#include <PiDxe.h>\r
#include <Protocol/PciRootBridgeIo.h>\r
\r
#define EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GUID \\r
// EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ATTRIBUTES\r
//\r
\r
-// If this bit is set, then the PCI Root Bridge does not\r
-// support separate windows for Non-prefetchable and Prefetchable\r
-// memory. A PCI bus driver needs to include requests for Prefetchable\r
-// memory in the Non-prefetchable memory pool.\r
-//\r
+/// If this bit is set, then the PCI Root Bridge does not\r
+/// support separate windows for Non-prefetchable and Prefetchable\r
+/// memory. A PCI bus driver needs to include requests for Prefetchable\r
+/// memory in the Non-prefetchable memory pool.\r
+///\r
#define EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM 1\r
\r
-//\r
-// If this bit is set, then the PCI Root Bridge supports\r
-// 64 bit memory windows. If this bit is not set,\r
-// the PCI bus driver needs to include requests for 64 bit\r
-// memory address in the corresponding 32 bit memory pool.\r
-//\r
+///\r
+/// If this bit is set, then the PCI Root Bridge supports\r
+/// 64 bit memory windows. If this bit is not set,\r
+/// the PCI bus driver needs to include requests for 64 bit\r
+/// memory address in the corresponding 32 bit memory pool.\r
+///\r
#define EFI_PCI_HOST_BRIDGE_MEM64_DECODE 2\r
\r
+typedef UINT64 EFI_RESOURCE_ALLOCATION_STATUS;\r
+\r
+///\r
+/// The request of this resource type could be fulfilled.\r
+///\r
+#define EFI_RESOURCE_SATISFIED 0x0000000000000000ULL\r
+\r
+///\r
+/// The request of this resource type could not be fulfilled for its\r
+/// absence in the host bridge resource pool.\r
+///\r
+#define EFI_RESOURCE_NOT_SATISFIED 0xFFFFFFFFFFFFFFFFULL\r
\r
//\r
// EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE\r
//\r
typedef enum {\r
+ ///\r
+ /// Reset the host bridge PCI apertures and internal data structures.\r
+ /// PCI enumerator should issue this notification before starting fresh\r
+ /// enumeration process. Enumeration cannot be restarted after sending\r
+ /// any other notification such as EfiPciHostBridgeBeginBusAllocation.\r
+ ///\r
EfiPciHostBridgeBeginEnumeration,\r
+\r
+ ///\r
+ /// The bus allocation phase is about to begin. No specific action\r
+ /// is required here. This notification can be used to perform any\r
+ /// chipset specific programming. \r
+ ///\r
EfiPciHostBridgeBeginBusAllocation,\r
+\r
+ ///\r
+ /// The bus allocation and bus programming phase is complete. No specific\r
+ /// action is required here. This notification can be used to perform any\r
+ /// chipset specific programming. \r
+ ///\r
EfiPciHostBridgeEndBusAllocation,\r
+ \r
+ ///\r
+ /// The resource allocation phase is about to begin.No specific action is\r
+ /// required here. This notification can be used to perform any chipset specific programming. \r
+ ///\r
EfiPciHostBridgeBeginResourceAllocation,\r
+ \r
+ ///\r
+ /// Allocate resources per previously submitted requests for all the PCI Root\r
+ /// Bridges. These resource settings are returned on the next call to\r
+ /// GetProposedResources(). \r
+ ///\r
EfiPciHostBridgeAllocateResources,\r
+ \r
+ ///\r
+ /// Program the Host Bridge hardware to decode previously allocated resources\r
+ /// (proposed resources) for all the PCI Root Bridges.\r
+ ///\r
EfiPciHostBridgeSetResources,\r
+ \r
+ ///\r
+ /// De-allocate previously allocated resources previously for all the PCI\r
+ /// Root Bridges and reset the I/O and memory apertures to initial state. \r
+ ///\r
EfiPciHostBridgeFreeResources,\r
+ \r
+ ///\r
+ /// The resource allocation phase is completed. No specific action is required\r
+ /// here. This notification can be used to perform any chipset specific programming. \r
+ ///\r
EfiPciHostBridgeEndResourceAllocation\r
} EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE;\r
\r
-//\r
-// EfiPciHostBridgeBeginEnumeration\r
-// Reset the host bridge PCI apertures and internal data structures.\r
-// PCI enumerator should issue this notification before starting fresh\r
-// enumeration process. Enumeration cannot be restarted after sending\r
-// any other notification such as EfiPciHostBridgeBeginBusAllocation.\r
-//\r
-// EfiPciHostBridgeBeginBusAllocation\r
-// The bus allocation phase is about to begin. No specific action\r
-// is required here. This notification can be used to perform any\r
-// chipset specific programming.\r
-//\r
-// EfiPciHostBridgeEndBusAllocation\r
-// The bus allocation and bus programming phase is complete. No specific\r
-// action is required here. This notification can be used to perform any\r
-// chipset specific programming.\r
-//\r
-// EfiPciHostBridgeBeginResourceAllocation\r
-// The resource allocation phase is about to begin.No specific action is\r
-// required here. This notification can be used to perform any chipset specific programming.\r
-//\r
-// EfiPciHostBridgeAllocateResources\r
-// Allocate resources per previously submitted requests for all the PCI Root\r
-// Bridges. These resource settings are returned on the next call to\r
-// GetProposedResources().\r
-//\r
-// EfiPciHostBridgeSetResources\r
-// Program the Host Bridge hardware to decode previously allocated resources\r
-// (proposed resources) for all the PCI Root Bridges.\r
-//\r
-// EfiPciHostBridgeFreeResources\r
-// De-allocate previously allocated resources previously for all the PCI\r
-// Root Bridges and reset the I/O and memory apertures to initial state.\r
-//\r
-// EfiPciHostBridgeEndResourceAllocation\r
-// The resource allocation phase is completed. No specific action is required\r
-// here. This notification can be used to perform any chipset specific programming.\r
-\r
-\r
-\r
-//\r
-// EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE\r
-//\r
+///\r
+/// Definitions of 2 notification points.\r
+///\r
typedef enum {\r
+ ///\r
+ /// This notification is only applicable to PCI-PCI bridges and\r
+ /// indicates that the PCI enumerator is about to begin enumerating\r
+ /// the bus behind the PCI-PCI Bridge. This notification is sent after\r
+ /// the primary bus number, the secondary bus number and the subordinate\r
+ /// bus number registers in the PCI-PCI Bridge are programmed to valid\r
+ /// (not necessary final) values\r
+ ///\r
EfiPciBeforeChildBusEnumeration,\r
+\r
+ ///\r
+ /// This notification is sent before the PCI enumerator probes BAR registers\r
+ /// for every valid PCI function. \r
+ ///\r
EfiPciBeforeResourceCollection\r
} EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE;\r
\r
-//\r
-// EfiPciBeforeChildBusEnumeration\r
-// This notification is only applicable to PCI-PCI bridges and\r
-// indicates that the PCI enumerator is about to begin enumerating\r
-// the bus behind the PCI-PCI Bridge. This notification is sent after\r
-// the primary bus number, the secondary bus number and the subordinate\r
-// bus number registers in the PCI-PCI Bridge are programmed to valid\r
-// (not necessary final) values\r
-//\r
-// EfiPciBeforeResourceCollection\r
-// This notification is sent before the PCI enumerator probes BAR registers\r
-// for every valid PCI function.\r
-//\r
-\r
-\r
/**\r
- Enter a certain phase of the PCI enumeration process\r
+ These are the notifications from the PCI bus driver that it is about to enter a certain phase of the PCI \r
+ enumeration process.\r
\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL \r
+ instance.\r
@param Phase The phase during enumeration\r
\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_OUT_OF_RESOURCES If SubmitResources ( ) could not allocate resources\r
- @retval EFI_NOT_READY This phase cannot be entered at this time\r
- @retval EFI_DEVICE_ERROR SetResources failed due to HW error.\r
+ @retval EFI_SUCCESS The notification was accepted without any errors.\r
+ @retval EFI_INVALID_PARAMETER The Phase is invalid.\r
+ @retval EFI_NOT_READY This phase cannot be entered at this time. For example, this error \r
+ is valid for a Phase of EfiPciHostBridgeAllocateResources if \r
+ SubmitResources() has not been called for one or more \r
+ PCI root bridges before this call.\r
+ @retval EFI_DEVICE_ERROR Programming failed due to a hardware error. This error is valid for \r
+ a Phase of EfiPciHostBridgeSetResources.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. \r
+ This error is valid for a Phase of EfiPciHostBridgeAllocateResources\r
+ if the previously submitted resource requests cannot be fulfilled or were only \r
+ partially fulfilled\r
\r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_NOTIFY_PHASE) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_NOTIFY_PHASE)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase\r
);\r
\r
\r
/**\r
- Return the device handle of the next PCI root bridge that is associated with\r
- this Host Bridge\r
+ Returns the device handle of the next PCI root bridge that is associated with this host bridge.\r
\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
- @param RootBridgeHandle Returns the device handle of the next PCI Root Bridge.\r
- On input, it holds the RootBridgeHandle returned by the most\r
- recent call to GetNextRootBridge().The handle for the first\r
- PCI Root Bridge is returned if RootBridgeHandle is NULL on input\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL \r
+ instance.\r
+ @param RootBridgeHandle Returns the device handle of the next PCI root bridge. On input, it holds the \r
+ RootBridgeHandle that was returned by the most recent call to \r
+ GetNextRootBridge(). If RootBridgeHandle is NULL on input, the handle \r
+ for the first PCI root bridge is returned.\r
\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
+ @retval EFI_SUCCESS The requested attribute information was returned.\r
+ @retval EFI_INVALID_PARAMETER RootBridgeHandle is not an EFI_HANDLE that was returned \r
+ on a previous call to GetNextRootBridge().\r
+ @retval EFI_NOT_FOUND There are no more PCI root bridge device handles.\r
\r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_NEXT_ROOT_BRIDGE) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_NEXT_ROOT_BRIDGE)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN OUT EFI_HANDLE *RootBridgeHandle\r
);\r
\r
\r
/**\r
- Returns the attributes of a PCI Root Bridge.\r
+ Returns the allocation attributes of a PCI root bridge.\r
\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
- @param RootBridgeHandle The device handle of the PCI Root Bridge\r
- that the caller is interested in\r
- @param Attribute The pointer to attributes of the PCI Root Bridge\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL \r
+ instance.\r
+ @param RootBridgeHandle The device handle of the PCI root bridge in which the caller is interested.\r
+ @param Attribute The pointer to attributes of the PCI root bridge.\r
\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
- @retval EFI_INVALID_PARAMETER Attributes is NULL\r
+ @retval EFI_SUCCESS The requested attribute information was returned.\r
+ @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r
+ @retval EFI_INVALID_PARAMETER Attributes is NULL.\r
\r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_ATTRIBUTES) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_ATTRIBUTES)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN EFI_HANDLE RootBridgeHandle,\r
OUT UINT64 *Attributes\r
\r
\r
/**\r
- This is the request from the PCI enumerator to set up\r
- the specified PCI Root Bridge for bus enumeration process.\r
+ Sets up the specified PCI root bridge for the bus enumeration process.\r
\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
- @param RootBridgeHandle The PCI Root Bridge to be set up\r
- @param Configuration Pointer to the pointer to the PCI bus resource descriptor\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL \r
+ instance.\r
+ @param RootBridgeHandle The PCI root bridge to be set up.\r
+ @param Configuration Pointer to the pointer to the PCI bus resource descriptor.\r
\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
- @retval EFI_DEVICE_ERROR Request failed due to hardware error\r
- @retval EFI_OUT_OF_RESOURCES Request failed due to lack of resources\r
+ @retval EFI_SUCCESS The PCI root bridge was set up and the bus range was returned in \r
+ Configuration.\r
+ @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r
+ @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
\r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_START_BUS_ENUMERATION) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_START_BUS_ENUMERATION)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN EFI_HANDLE RootBridgeHandle,\r
OUT VOID **Configuration\r
\r
\r
/**\r
- This function programs the PCI Root Bridge hardware so that\r
- it decodes the specified PCI bus range\r
+ Programs the PCI root bridge hardware so that it decodes the specified PCI bus range.\r
\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
- @param RootBridgeHandle The PCI Root Bridge whose bus range is to be programmed\r
- @param Configuration The pointer to the PCI bus resource descriptor\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL\r
+ instance. \r
+ @param RootBridgeHandle The PCI root bridge whose bus range is to be programmed.\r
+ @param Configuration The pointer to the PCI bus resource descriptor..\r
\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
+ @retval EFI_SUCCESS The bus range for the PCI root bridge was programmed.\r
+ @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r
@retval EFI_INVALID_PARAMETER Configuration is NULL\r
- @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI resource descriptor\r
- @retval EFI_INVALID_PARAMETER Configuration contains one or more memory or IO ACPI resource descriptor\r
- @retval EFI_INVALID_PARAMETER Address Range Minimum or Address Range Length fields in Configuration\r
- are invalid for this Root Bridge.\r
- @retval EFI_INVALID_PARAMETER Configuration contains one or more invalid ACPI resource descriptor\r
- @retval EFI_DEVICE_ERROR Request failed due to hardware error\r
- @retval EFI_OUT_OF_RESOURCES Request failed due to lack of resources\r
+ @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI (2.0 & 3.0) \r
+ resource descriptor.\r
+ @retval EFI_INVALID_PARAMETER Configuration does not include a valid ACPI 2.0 bus resource\r
+ descriptor.\r
+ @retval EFI_INVALID_PARAMETER Configuration includes valid ACPI (2.0 & 3.0) resource \r
+ descriptors other than bus descriptors.\r
+ @retval EFI_INVALID_PARAMETER Configuration contains one or more invalid ACPI resource \r
+ descriptors.\r
+ @retval EFI_INVALID_PARAMETER "Address Range Minimum" is invalid for this root bridge.\r
+ @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this root bridge.\r
+ @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.\r
\r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SET_BUS_NUMBERS) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SET_BUS_NUMBERS)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN EFI_HANDLE RootBridgeHandle,\r
IN VOID *Configuration\r
\r
\r
/**\r
- Submits the I/O and memory resource requirements for the specified PCI Root Bridge\r
-\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
- @param RootBridgeHandle The PCI Root Bridge whose I/O and memory resource requirements\r
- are being submitted\r
- @param Configuration The pointer to the PCI I/O and PCI memory resource descriptor\r
-\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
- @retval EFI_INVALID_PARAMETER Configuration is NULL\r
- @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI resource descriptor\r
- @retval EFI_INVALID_PARAMETER Configuration includes a resource descriptor of unsupported type\r
-\r
+ Submits the I/O and memory resource requirements for the specified PCI root bridge.\r
+\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL \r
+ instance.\r
+ @param RootBridgeHandle The PCI root bridge whose I/O and memory resource requirements are being \r
+ submitted.\r
+ @param Configuration The pointer to the PCI I/O and PCI memory resource descriptor.\r
+\r
+ @retval EFI_SUCCESS The I/O and memory resource requests for a PCI root bridge were \r
+ accepted.\r
+ @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r
+ @retval EFI_INVALID_PARAMETER Configuration is NULL.\r
+ @retval EFI_INVALID_PARAMETER Configuration does not point to a valid ACPI (2.0 & 3.0) \r
+ resource descriptor.\r
+ @retval EFI_INVALID_PARAMETER Configuration includes requests for one or more resource \r
+ types that are not supported by this PCI root bridge. This error will \r
+ happen if the caller did not combine resources according to \r
+ Attributes that were returned by GetAllocAttributes().\r
+ @retval EFI_INVALID_PARAMETER "Address Range Maximum" is invalid.\r
+ @retval EFI_INVALID_PARAMETER "Address Range Length" is invalid for this PCI root bridge.\r
+ @retval EFI_INVALID_PARAMETER "Address Space Granularity" is invalid for this PCI root bridge.\r
+ \r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SUBMIT_RESOURCES) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SUBMIT_RESOURCES)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN EFI_HANDLE RootBridgeHandle,\r
IN VOID *Configuration\r
\r
\r
/**\r
- This function returns the proposed resource settings for the specified\r
- PCI Root Bridge\r
+ Returns the proposed resource settings for the specified PCI root bridge.\r
\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
- @param RootBridgeHandle The PCI Root Bridge handle\r
- @param Configuration The pointer to the pointer to the PCI I/O\r
- and memory resource descriptor\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL \r
+ instance.\r
+ @param RootBridgeHandle The PCI root bridge handle.\r
+ @param Configuration The pointer to the pointer to the PCI I/O and memory resource descriptor.\r
\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
- @retval EFI_DEVICE_ERROR Request failed due to hardware error\r
- @retval EFI_OUT_OF_RESOURCES Request failed due to lack of resources\r
+ @retval EFI_SUCCESS The requested parameters were returned.\r
+ @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r
+ @retval EFI_DEVICE_ERROR Programming failed due to a hardware error.\r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.\r
\r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_PROPOSED_RESOURCES) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_PROPOSED_RESOURCES)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN EFI_HANDLE RootBridgeHandle,\r
OUT VOID **Configuration\r
\r
\r
/**\r
- This function is called for all the PCI controllers that the PCI\r
- bus driver finds. Can be used to Preprogram the controller.\r
-\r
- @param This The EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_ PROTOCOL instance\r
- @param RootBridgeHandle The PCI Root Bridge handle\r
- @param PciBusAddress Address of the controller on the PCI bus\r
- @param Phase The Phase during resource allocation\r
-\r
- @retval EFI_SUCCESS Success\r
- @retval EFI_INVALID_PARAMETER RootBridgeHandle is invalid\r
- @retval EFI_DEVICE_ERROR Device pre-initialization failed due to hardware error.\r
+ Provides the hooks from the PCI bus driver to every PCI controller (device/function) at various \r
+ stages of the PCI enumeration process that allow the host bridge driver to preinitialize individual \r
+ PCI controllers before enumeration.\r
+\r
+ @param This Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance.\r
+ @param RootBridgeHandle The associated PCI root bridge handle.\r
+ @param PciAddress The address of the PCI device on the PCI bus.\r
+ @param Phase The phase of the PCI device enumeration.\r
+\r
+ @retval EFI_SUCCESS The requested parameters were returned.\r
+ @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.\r
+ @retval EFI_INVALID_PARAMETER Phase is not a valid phase that is defined in \r
+ EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE.\r
+ @retval EFI_DEVICE_ERROR Programming failed due to a hardware error. The PCI enumerator \r
+ should not enumerate this device, including its child devices if it is \r
+ a PCI-to-PCI bridge.\r
\r
**/\r
typedef\r
EFI_STATUS\r
-(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_PREPROCESS_CONTROLLER) (\r
+(EFIAPI *EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_PREPROCESS_CONTROLLER)(\r
IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This,\r
IN EFI_HANDLE RootBridgeHandle,\r
IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_PCI_ADDRESS PciAddress,\r
IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase\r
);\r
\r
-/**\r
- @par Protocol Description:\r
- Provides the basic interfaces to abstract a PCI host bridge resource allocation.\r
-\r
- @param NotifyPhase\r
- The notification from the PCI bus enumerator that it is about to enter\r
- a certain phase during the enumeration process.\r
-\r
- @param GetNextRootBridge\r
- Retrieves the device handle for the next PCI root bridge that is produced by the\r
- host bridge to which this instance of the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is attached.\r
-\r
- @param GetAllocAttributes\r
- Retrieves the allocation-related attributes of a PCI root bridge.\r
-\r
- @param StartBusEnumeration\r
- Sets up a PCI root bridge for bus enumeration.\r
-\r
- @param SetBusNumbers\r
- Sets up the PCI root bridge so that it decodes a specific range of bus numbers.\r
-\r
- @param SubmitResources\r
- Submits the resource requirements for the specified PCI root bridge.\r
-\r
- @param GetProposedResources\r
- Returns the proposed resource assignment for the specified PCI root bridges.\r
-\r
- @param PreprocessController\r
- Provides hooks from the PCI bus driver to every PCI controller\r
- (device/function) at various stages of the PCI enumeration process that\r
- allow the host bridge driver to preinitialize individual PCI controllers\r
- before enumeration.\r
-\r
-**/\r
+///\r
+/// Provides the basic interfaces to abstract a PCI host bridge resource allocation.\r
+///\r
struct _EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL {\r
+ ///\r
+ /// The notification from the PCI bus enumerator that it is about to enter\r
+ /// a certain phase during the enumeration process.\r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_NOTIFY_PHASE NotifyPhase;\r
+ \r
+ ///\r
+ /// Retrieves the device handle for the next PCI root bridge that is produced by the\r
+ /// host bridge to which this instance of the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL is attached. \r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_NEXT_ROOT_BRIDGE GetNextRootBridge;\r
+ \r
+ ///\r
+ /// Retrieves the allocation-related attributes of a PCI root bridge.\r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_ATTRIBUTES GetAllocAttributes;\r
+ \r
+ ///\r
+ /// Sets up a PCI root bridge for bus enumeration.\r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_START_BUS_ENUMERATION StartBusEnumeration;\r
+ \r
+ ///\r
+ /// Sets up the PCI root bridge so that it decodes a specific range of bus numbers.\r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SET_BUS_NUMBERS SetBusNumbers;\r
+ \r
+ ///\r
+ /// Submits the resource requirements for the specified PCI root bridge.\r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_SUBMIT_RESOURCES SubmitResources;\r
+ \r
+ ///\r
+ /// Returns the proposed resource assignment for the specified PCI root bridges.\r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_GET_PROPOSED_RESOURCES GetProposedResources;\r
+ \r
+ ///\r
+ /// Provides hooks from the PCI bus driver to every PCI controller\r
+ /// (device/function) at various stages of the PCI enumeration process that\r
+ /// allow the host bridge driver to preinitialize individual PCI controllers\r
+ /// before enumeration. \r
+ ///\r
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL_PREPROCESS_CONTROLLER PreprocessController;\r
};\r
\r
projects / mirror_edk2.git / blobdiff