diff options
Diffstat (limited to 'EdkModulePkg/Bus/Pci/PciBus/Dxe/PciEnumeratorSupport.c')
| -rw-r--r-- | EdkModulePkg/Bus/Pci/PciBus/Dxe/PciEnumeratorSupport.c | 2254 |
1 files changed, 0 insertions, 2254 deletions
diff --git a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciEnumeratorSupport.c b/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciEnumeratorSupport.c deleted file mode 100644 index 8020ab120f..0000000000 --- a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciEnumeratorSupport.c +++ /dev/null @@ -1,2254 +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:
-
- PciEnumeratorSupport.c
-
-Abstract:
-
- PCI Bus Driver
-
-Revision History
-
---*/
-
-#include "pcibus.h"
-#include "PciEnumeratorSupport.h"
-#include "PciCommand.h"
-#include "PciIo.h"
-
-EFI_STATUS
-PciDevicePresent (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,
- PCI_TYPE00 *Pci,
- UINT8 Bus,
- UINT8 Device,
- UINT8 Func
- )
-/*++
-
-Routine Description:
-
- This routine is used to check whether the pci device is present
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciRootBridgeIo - add argument and description to function comment
-// TODO: Pci - add argument and description to function comment
-// TODO: Bus - add argument and description to function comment
-// TODO: Device - add argument and description to function comment
-// TODO: Func - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_NOT_FOUND - add return value to function comment
-{
- UINT64 Address;
- EFI_STATUS Status;
-
- //
- // Create PCI address map in terms of Bus, Device and Func
- //
- Address = EFI_PCI_ADDRESS (Bus, Device, Func, 0);
-
- //
- // Read the Vendor Id register
- //
- Status = PciRootBridgeIoRead (
- PciRootBridgeIo,
- NULL,
- EfiPciWidthUint32,
- Address,
- 1,
- Pci
- );
-
- if (!EFI_ERROR (Status) && (Pci->Hdr).VendorId != 0xffff) {
-
- //
- // Read the entire config header for the device
- //
-
- Status = PciRootBridgeIoRead (
- PciRootBridgeIo,
- NULL,
- EfiPciWidthUint32,
- Address,
- sizeof (PCI_TYPE00) / sizeof (UINT32),
- Pci
- );
-
- return EFI_SUCCESS;
- }
-
- return EFI_NOT_FOUND;
-}
-
-EFI_STATUS
-PciPciDeviceInfoCollector (
- IN PCI_IO_DEVICE *Bridge,
- UINT8 StartBusNumber
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: StartBusNumber - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_STATUS Status;
- PCI_TYPE00 Pci;
- UINT8 Device;
- UINT8 Func;
- UINT8 SecBus;
- PCI_IO_DEVICE *PciIoDevice;
- EFI_PCI_IO_PROTOCOL *PciIo;
-
- Status = EFI_SUCCESS;
- SecBus = 0;
-
- for (Device = 0; Device <= PCI_MAX_DEVICE; Device++) {
-
- for (Func = 0; Func <= PCI_MAX_FUNC; Func++) {
-
- //
- // Check to see whether PCI device is present
- //
-
- Status = PciDevicePresent (
- Bridge->PciRootBridgeIo,
- &Pci,
- (UINT8) StartBusNumber,
- (UINT8) Device,
- (UINT8) Func
- );
-
- if (!EFI_ERROR (Status)) {
-
- //
- // Call back to host bridge function
- //
- PreprocessController (Bridge, (UINT8) StartBusNumber, Device, Func, EfiPciBeforeResourceCollection);
-
- //
- // Collect all the information about the PCI device discovered
- //
- Status = PciSearchDevice (
- Bridge,
- &Pci,
- (UINT8) StartBusNumber,
- Device,
- Func,
- &PciIoDevice
- );
-
- //
- // Recursively scan PCI busses on the other side of PCI-PCI bridges
- //
- //
-
- if (!EFI_ERROR (Status) && (IS_PCI_BRIDGE (&Pci) || IS_CARDBUS_BRIDGE (&Pci))) {
-
- //
- // If it is PPB, we need to get the secondary bus to continue the enumeration
- //
- PciIo = &(PciIoDevice->PciIo);
-
- Status = PciIoRead (PciIo, EfiPciIoWidthUint8, 0x19, 1, &SecBus);
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Get resource padding for PPB
- //
- GetResourcePaddingPpb (PciIoDevice);
-
- //
- // Deep enumerate the next level bus
- //
- Status = PciPciDeviceInfoCollector (
- PciIoDevice,
- (UINT8) (SecBus)
- );
-
- }
-
- if (Func == 0 && !IS_PCI_MULTI_FUNC (&Pci)) {
-
- //
- // Skip sub functions, this is not a multi function device
- //
- Func = PCI_MAX_FUNC;
- }
- }
-
- }
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciSearchDevice (
- IN PCI_IO_DEVICE *Bridge,
- IN PCI_TYPE00 *Pci,
- IN UINT8 Bus,
- IN UINT8 Device,
- IN UINT8 Func,
- OUT PCI_IO_DEVICE **PciDevice
- )
-/*++
-
-Routine Description:
-
- Search required device.
-
-Arguments:
-
- Bridge - A pointer to the PCI_IO_DEVICE.
- Pci - A pointer to the PCI_TYPE00.
- Bus - Bus number.
- Device - Device number.
- Func - Function number.
- PciDevice - The Required pci device.
-
-Returns:
-
- Status code.
-
---*/
-// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment
-// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- PCI_IO_DEVICE *PciIoDevice;
-
- PciIoDevice = NULL;
-
- if (!IS_PCI_BRIDGE (Pci)) {
-
- if (IS_CARDBUS_BRIDGE (Pci)) {
- PciIoDevice = GatherP2CInfo (
- Bridge,
- Pci,
- Bus,
- Device,
- Func
- );
- if ((PciIoDevice != NULL) && gFullEnumeration) {
- InitializeP2C (PciIoDevice);
- }
- } else {
-
- //
- // Create private data for Pci Device
- //
- PciIoDevice = GatherDeviceInfo (
- Bridge,
- Pci,
- Bus,
- Device,
- Func
- );
-
- }
-
- } else {
-
- //
- // Create private data for PPB
- //
- PciIoDevice = GatherPpbInfo (
- Bridge,
- Pci,
- Bus,
- Device,
- Func
- );
-
- //
- // Special initialization for PPB including making the PPB quiet
- //
- if ((PciIoDevice != NULL) && gFullEnumeration) {
- InitializePpb (PciIoDevice);
- }
- }
-
- if (!PciIoDevice) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- //
- // Update the bar information for this PCI device so as to support some specific device
- //
- if (PcdGet8 (PcdPciIncompatibleDeviceSupportMask) & PCI_INCOMPATIBLE_ACPI_RESOURCE_SUPPORT) {
- UpdatePciInfo (PciIoDevice);
- }
-
- if (PciIoDevice->DevicePath == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- //
- // Detect this function has option rom
- //
- if (gFullEnumeration) {
-
- if (!IS_CARDBUS_BRIDGE (Pci)) {
-
- GetOpRomInfo (PciIoDevice);
-
- }
-
- ResetPowerManagementFeature (PciIoDevice);
-
- }
-
- //
- // Insert it into a global tree for future reference
- //
- InsertPciDevice (Bridge, PciIoDevice);
-
- //
- // Determine PCI device attributes
- //
-
- if (PciDevice != NULL) {
- *PciDevice = PciIoDevice;
- }
-
- return EFI_SUCCESS;
-}
-
-PCI_IO_DEVICE *
-GatherDeviceInfo (
- IN PCI_IO_DEVICE *Bridge,
- IN PCI_TYPE00 *Pci,
- UINT8 Bus,
- UINT8 Device,
- UINT8 Func
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: Pci - add argument and description to function comment
-// TODO: Bus - add argument and description to function comment
-// TODO: Device - add argument and description to function comment
-// TODO: Func - add argument and description to function comment
-{
- UINTN Offset;
- UINTN BarIndex;
- PCI_IO_DEVICE *PciIoDevice;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
-
- PciRootBridgeIo = Bridge->PciRootBridgeIo;
- PciIoDevice = CreatePciIoDevice (
- PciRootBridgeIo,
- Pci,
- Bus,
- Device,
- Func
- );
-
- if (!PciIoDevice) {
- return NULL;
- }
-
- //
- // Create a device path for this PCI device and store it into its private data
- //
- CreatePciDevicePath (
- Bridge->DevicePath,
- PciIoDevice
- );
-
- //
- // If it is a full enumeration, disconnect the device in advance
- //
- if (gFullEnumeration) {
-
- PciDisableCommandRegister (PciIoDevice, EFI_PCI_COMMAND_BITS_OWNED);
-
- }
-
- //
- // Start to parse the bars
- //
- for (Offset = 0x10, BarIndex = 0; Offset <= 0x24; BarIndex++) {
- Offset = PciParseBar (PciIoDevice, Offset, BarIndex);
- }
-
- return PciIoDevice;
-}
-
-PCI_IO_DEVICE *
-GatherPpbInfo (
- IN PCI_IO_DEVICE *Bridge,
- IN PCI_TYPE00 *Pci,
- UINT8 Bus,
- UINT8 Device,
- UINT8 Func
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: Pci - add argument and description to function comment
-// TODO: Bus - add argument and description to function comment
-// TODO: Device - add argument and description to function comment
-// TODO: Func - add argument and description to function comment
-{
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
- PCI_IO_DEVICE *PciIoDevice;
- EFI_STATUS Status;
- UINT32 Value;
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINT8 Temp;
-
- PciRootBridgeIo = Bridge->PciRootBridgeIo;
- PciIoDevice = CreatePciIoDevice (
- PciRootBridgeIo,
- Pci,
- Bus,
- Device,
- Func
- );
-
- if (!PciIoDevice) {
- return NULL;
- }
-
- //
- // Create a device path for this PCI device and store it into its private data
- //
- CreatePciDevicePath (
- Bridge->DevicePath,
- PciIoDevice
- );
-
- if (gFullEnumeration) {
- PciDisableCommandRegister (PciIoDevice, EFI_PCI_COMMAND_BITS_OWNED);
-
- //
- // Initalize the bridge control register
- //
- PciDisableBridgeControlRegister (PciIoDevice, EFI_PCI_BRIDGE_CONTROL_BITS_OWNED);
-
- }
-
- //
- // PPB can have two BARs
- //
- if (PciParseBar (PciIoDevice, 0x10, PPB_BAR_0) == 0x14) {
- //
- // Not 64-bit bar
- //
- PciParseBar (PciIoDevice, 0x14, PPB_BAR_1);
- }
-
- PciIo = &PciIoDevice->PciIo;
-
- //
- // Test whether it support 32 decode or not
- //
- PciIoRead (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Temp);
- PciIoWrite (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &gAllOne);
- PciIoRead (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Value);
- PciIoWrite (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &Temp);
-
- if (Value) {
- if (Value & 0x01) {
- PciIoDevice->Decodes |= EFI_BRIDGE_IO32_DECODE_SUPPORTED;
- } else {
- PciIoDevice->Decodes |= EFI_BRIDGE_IO16_DECODE_SUPPORTED;
- }
- }
-
- Status = BarExisted (
- PciIoDevice,
- 0x24,
- NULL,
- NULL
- );
-
- //
- // test if it supports 64 memory or not
- //
- if (!EFI_ERROR (Status)) {
-
- Status = BarExisted (
- PciIoDevice,
- 0x28,
- NULL,
- NULL
- );
-
- if (!EFI_ERROR (Status)) {
- PciIoDevice->Decodes |= EFI_BRIDGE_PMEM32_DECODE_SUPPORTED;
- PciIoDevice->Decodes |= EFI_BRIDGE_PMEM64_DECODE_SUPPORTED;
- } else {
- PciIoDevice->Decodes |= EFI_BRIDGE_PMEM32_DECODE_SUPPORTED;
- }
- }
-
- //
- // Memory 32 code is required for ppb
- //
- PciIoDevice->Decodes |= EFI_BRIDGE_MEM32_DECODE_SUPPORTED;
-
- GetResourcePaddingPpb (PciIoDevice);
-
- return PciIoDevice;
-}
-
-PCI_IO_DEVICE *
-GatherP2CInfo (
- IN PCI_IO_DEVICE *Bridge,
- IN PCI_TYPE00 *Pci,
- UINT8 Bus,
- UINT8 Device,
- UINT8 Func
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: Pci - add argument and description to function comment
-// TODO: Bus - add argument and description to function comment
-// TODO: Device - add argument and description to function comment
-// TODO: Func - add argument and description to function comment
-{
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
- PCI_IO_DEVICE *PciIoDevice;
-
- PciRootBridgeIo = Bridge->PciRootBridgeIo;
- PciIoDevice = CreatePciIoDevice (
- PciRootBridgeIo,
- Pci,
- Bus,
- Device,
- Func
- );
-
- if (!PciIoDevice) {
- return NULL;
- }
-
- //
- // Create a device path for this PCI device and store it into its private data
- //
- CreatePciDevicePath (
- Bridge->DevicePath,
- PciIoDevice
- );
-
- if (gFullEnumeration) {
- PciDisableCommandRegister (PciIoDevice, EFI_PCI_COMMAND_BITS_OWNED);
-
- //
- // Initalize the bridge control register
- //
- PciDisableBridgeControlRegister (PciIoDevice, EFI_PCCARD_BRIDGE_CONTROL_BITS_OWNED);
-
- }
- //
- // P2C only has one bar that is in 0x10
- //
- PciParseBar (PciIoDevice, 0x10, P2C_BAR_0);
-
- //
- // Read PciBar information from the bar register
- //
- GetBackPcCardBar (PciIoDevice);
- PciIoDevice->Decodes = EFI_BRIDGE_MEM32_DECODE_SUPPORTED |
- EFI_BRIDGE_PMEM32_DECODE_SUPPORTED |
- EFI_BRIDGE_IO32_DECODE_SUPPORTED;
-
- return PciIoDevice;
-}
-
-EFI_DEVICE_PATH_PROTOCOL *
-CreatePciDevicePath (
- IN EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath,
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: ParentDevicePath - add argument and description to function comment
-// TODO: PciIoDevice - add argument and description to function comment
-{
-
- PCI_DEVICE_PATH PciNode;
-
- //
- // Create PCI device path
- //
- PciNode.Header.Type = HARDWARE_DEVICE_PATH;
- PciNode.Header.SubType = HW_PCI_DP;
- SetDevicePathNodeLength (&PciNode.Header, sizeof (PciNode));
-
- PciNode.Device = PciIoDevice->DeviceNumber;
- PciNode.Function = PciIoDevice->FunctionNumber;
- PciIoDevice->DevicePath = AppendDevicePathNode (ParentDevicePath, &PciNode.Header);
-
- return PciIoDevice->DevicePath;
-}
-
-EFI_STATUS
-BarExisted (
- IN PCI_IO_DEVICE *PciIoDevice,
- IN UINTN Offset,
- OUT UINT32 *BarLengthValue,
- OUT UINT32 *OriginalBarValue
- )
-/*++
-
-Routine Description:
-
- Check the bar is existed or not.
-
-Arguments:
-
- PciIoDevice - A pointer to the PCI_IO_DEVICE.
- Offset - The offset.
- BarLengthValue - The bar length value.
- OriginalBarValue - The original bar value.
-
-Returns:
-
- EFI_NOT_FOUND - The bar don't exist.
- EFI_SUCCESS - The bar exist.
-
---*/
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINT32 OriginalValue;
- UINT32 Value;
- EFI_TPL OldTpl;
-
- PciIo = &PciIoDevice->PciIo;
-
- //
- // Preserve the original value
- //
-
- PciIoRead (PciIo, EfiPciIoWidthUint32, (UINT8) Offset, 1, &OriginalValue);
-
- //
- // Raise TPL to high level to disable timer interrupt while the BAR is probed
- //
- OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
-
- PciIoWrite (PciIo, EfiPciIoWidthUint32, (UINT8) Offset, 1, &gAllOne);
- PciIoRead (PciIo, EfiPciIoWidthUint32, (UINT8) Offset, 1, &Value);
-
- //
- // Write back the original value
- //
- PciIoWrite (PciIo, EfiPciIoWidthUint32, (UINT8) Offset, 1, &OriginalValue);
-
- //
- // Restore TPL to its original level
- //
- gBS->RestoreTPL (OldTpl);
-
- if (BarLengthValue != NULL) {
- *BarLengthValue = Value;
- }
-
- if (OriginalBarValue != NULL) {
- *OriginalBarValue = OriginalValue;
- }
-
- if (Value == 0) {
- return EFI_NOT_FOUND;
- } else {
- return EFI_SUCCESS;
- }
-}
-
-EFI_STATUS
-PciTestSupportedAttribute (
- IN PCI_IO_DEVICE *PciIoDevice,
- IN UINT16 *Command,
- IN UINT16 *BridgeControl,
- IN UINT16 *OldCommand,
- IN UINT16 *OldBridgeControl
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: Command - add argument and description to function comment
-// TODO: BridgeControl - add argument and description to function comment
-// TODO: OldCommand - add argument and description to function comment
-// TODO: OldBridgeControl - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_TPL OldTpl;
-
- //
- // Preserve the original value
- //
- PciReadCommandRegister (PciIoDevice, OldCommand);
-
- //
- // Raise TPL to high level to disable timer interrupt while the BAR is probed
- //
- OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
-
- PciSetCommandRegister (PciIoDevice, *Command);
- PciReadCommandRegister (PciIoDevice, Command);
-
- //
- // Write back the original value
- //
- PciSetCommandRegister (PciIoDevice, *OldCommand);
-
- //
- // Restore TPL to its original level
- //
- gBS->RestoreTPL (OldTpl);
-
- if (IS_PCI_BRIDGE (&PciIoDevice->Pci) || IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {
-
- //
- // Preserve the original value
- //
- PciReadBridgeControlRegister (PciIoDevice, OldBridgeControl);
-
- //
- // Raise TPL to high level to disable timer interrupt while the BAR is probed
- //
- OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
-
- PciSetBridgeControlRegister (PciIoDevice, *BridgeControl);
- PciReadBridgeControlRegister (PciIoDevice, BridgeControl);
-
- //
- // Write back the original value
- //
- PciSetBridgeControlRegister (PciIoDevice, *OldBridgeControl);
-
- //
- // Restore TPL to its original level
- //
- gBS->RestoreTPL (OldTpl);
-
- } else {
- *OldBridgeControl = 0;
- *BridgeControl = 0;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciSetDeviceAttribute (
- IN PCI_IO_DEVICE *PciIoDevice,
- IN UINT16 Command,
- IN UINT16 BridgeControl,
- IN UINTN Option
- )
-/*++
-
- Routine Description:
- Set the supported or current attributes of a PCI device
-
- Arguments:
- PciIoDevice - Structure pointer for PCI device.
- Command - Command register value.
- BridgeControl - Bridge control value for PPB or P2C.
- Option - Make a choice of EFI_SET_SUPPORTS or EFI_SET_ATTRIBUTES.
-
- Returns:
-
---*/
-
-/*++
-
-Routine Description:
-
-
-
-Arguments:
-
-
-Returns:
-
- EFI_SUCCESS Always success
-
-
---*/
-{
- UINT64 Attributes;
-
- Attributes = 0;
-
- if (Command & EFI_PCI_COMMAND_IO_SPACE) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_IO;
- }
-
- if (Command & EFI_PCI_COMMAND_MEMORY_SPACE) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_MEMORY;
- }
-
- if (Command & EFI_PCI_COMMAND_BUS_MASTER) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_BUS_MASTER;
- }
-
- if (Command & EFI_PCI_COMMAND_VGA_PALETTE_SNOOP) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO;
- }
-
- if (BridgeControl & EFI_PCI_BRIDGE_CONTROL_ISA) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_ISA_IO;
- }
-
- if (BridgeControl & EFI_PCI_BRIDGE_CONTROL_VGA) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_IO;
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY;
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO;
- }
-
- if (BridgeControl & EFI_PCI_BRIDGE_CONTROL_VGA_16) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_IO_16;
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_PALETTE_IO_16;
- }
-
- if (Option == EFI_SET_SUPPORTS) {
-
- Attributes |= EFI_PCI_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE |
- EFI_PCI_IO_ATTRIBUTE_MEMORY_CACHED |
- EFI_PCI_IO_ATTRIBUTE_MEMORY_DISABLE |
- EFI_PCI_IO_ATTRIBUTE_EMBEDDED_DEVICE |
- EFI_PCI_IO_ATTRIBUTE_EMBEDDED_ROM |
- EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE;
-
- if (Attributes & EFI_PCI_IO_ATTRIBUTE_IO) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO;
- Attributes |= EFI_PCI_IO_ATTRIBUTE_ISA_IO;
- }
-
- if (IS_PCI_BRIDGE (&PciIoDevice->Pci) || IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {
- //
- // For bridge, it should support IDE attributes
- //
- Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO;
- Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO;
- } else {
-
- if (IS_PCI_IDE (&PciIoDevice->Pci)) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_SECONDARY_IO;
- Attributes |= EFI_PCI_IO_ATTRIBUTE_IDE_PRIMARY_IO;
- }
-
- if (IS_PCI_VGA (&PciIoDevice->Pci)) {
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_MEMORY;
- Attributes |= EFI_PCI_IO_ATTRIBUTE_VGA_IO;
- }
- }
-
- PciIoDevice->Supports = Attributes;
- PciIoDevice->Supports &= ( (PciIoDevice->Parent->Supports) | \
- EFI_PCI_IO_ATTRIBUTE_IO | EFI_PCI_IO_ATTRIBUTE_MEMORY | \
- EFI_PCI_IO_ATTRIBUTE_BUS_MASTER );
-
- } else {
- PciIoDevice->Attributes = Attributes;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-GetFastBackToBackSupport (
- IN PCI_IO_DEVICE *PciIoDevice,
- IN UINT8 StatusIndex
- )
-/*++
-
-Routine Description:
-
- Determine if the device can support Fast Back to Back attribute
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: StatusIndex - add argument and description to function comment
-// TODO: EFI_UNSUPPORTED - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_UNSUPPORTED - add return value to function comment
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
- EFI_STATUS Status;
- UINT32 StatusRegister;
-
- //
- // Read the status register
- //
- PciIo = &PciIoDevice->PciIo;
- Status = PciIoRead (PciIo, EfiPciIoWidthUint16, StatusIndex, 1, &StatusRegister);
- if (EFI_ERROR (Status)) {
- return EFI_UNSUPPORTED;
- }
-
- //
- // Check the Fast B2B bit
- //
- if (StatusRegister & EFI_PCI_FAST_BACK_TO_BACK_CAPABLE) {
- return EFI_SUCCESS;
- } else {
- return EFI_UNSUPPORTED;
- }
-
-}
-
-STATIC
-EFI_STATUS
-ProcessOptionRomLight (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
- Process the option ROM for all the children of the specified parent PCI device.
- It can only be used after the first full Option ROM process.
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- PCI_IO_DEVICE *Temp;
- LIST_ENTRY *CurrentLink;
-
- //
- // For RootBridge, PPB , P2C, go recursively to traverse all its children
- //
- CurrentLink = PciIoDevice->ChildList.ForwardLink;
- while (CurrentLink && CurrentLink != &PciIoDevice->ChildList) {
-
- Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
-
- if (!IsListEmpty (&Temp->ChildList)) {
- ProcessOptionRomLight (Temp);
- }
-
- PciRomGetImageMapping (Temp);
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-DetermineDeviceAttribute (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
- Determine the related attributes of all devices under a Root Bridge
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- UINT16 Command;
- UINT16 BridgeControl;
- UINT16 OldCommand;
- UINT16 OldBridgeControl;
- BOOLEAN FastB2BSupport;
-
- /*
- UINT8 IdePI;
- EFI_PCI_IO_PROTOCOL *PciIo;
- */
- PCI_IO_DEVICE *Temp;
- LIST_ENTRY *CurrentLink;
- EFI_STATUS Status;
-
- //
- // For Root Bridge, just copy it by RootBridgeIo proctocol
- // so as to keep consistent with the actual attribute
- //
- if (!PciIoDevice->Parent) {
- Status = PciIoDevice->PciRootBridgeIo->GetAttributes (
- PciIoDevice->PciRootBridgeIo,
- &PciIoDevice->Supports,
- &PciIoDevice->Attributes
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
- } else {
-
- //
- // Set the attributes to be checked for common PCI devices and PPB or P2C
- // Since some devices only support part of them, it is better to set the
- // attribute according to its command or bridge control register
- //
- Command = EFI_PCI_COMMAND_IO_SPACE |
- EFI_PCI_COMMAND_MEMORY_SPACE |
- EFI_PCI_COMMAND_BUS_MASTER |
- EFI_PCI_COMMAND_VGA_PALETTE_SNOOP;
-
- BridgeControl = EFI_PCI_BRIDGE_CONTROL_ISA | EFI_PCI_BRIDGE_CONTROL_VGA | EFI_PCI_BRIDGE_CONTROL_VGA_16;
-
- //
- // Test whether the device can support attributes above
- //
- PciTestSupportedAttribute (PciIoDevice, &Command, &BridgeControl, &OldCommand, &OldBridgeControl);
-
- //
- // Set the supported attributes for specified PCI device
- //
- PciSetDeviceAttribute (PciIoDevice, Command, BridgeControl, EFI_SET_SUPPORTS);
-
- //
- // Set the current attributes for specified PCI device
- //
- PciSetDeviceAttribute (PciIoDevice, OldCommand, OldBridgeControl, EFI_SET_ATTRIBUTES);
-
- //
- // Enable other supported attributes but not defined in PCI_IO_PROTOCOL
- //
- PciEnableCommandRegister (PciIoDevice, EFI_PCI_COMMAND_MEMORY_WRITE_AND_INVALIDATE);
-
- //
- // Enable IDE native mode
- //
- /*
- if (IS_PCI_IDE(&PciIoDevice->Pci)) {
-
- PciIo = &PciIoDevice->PciIo;
-
- PciIoRead (
- PciIo,
- EfiPciIoWidthUint8,
- 0x09,
- 1,
- &IdePI
- );
-
- //
- // Set native mode if it can be supported
- //
- IdePI |= (((IdePI & 0x0F) >> 1) & 0x05);
-
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint8,
- 0x09,
- 1,
- &IdePI
- );
-
- }
- */
- }
-
- FastB2BSupport = TRUE;
-
- //
- // P2C can not support FB2B on the secondary side
- //
- if (IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {
- FastB2BSupport = FALSE;
- }
-
- //
- // For RootBridge, PPB , P2C, go recursively to traverse all its children
- //
- CurrentLink = PciIoDevice->ChildList.ForwardLink;
- while (CurrentLink && CurrentLink != &PciIoDevice->ChildList) {
-
- Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
- Status = DetermineDeviceAttribute (Temp);
- if (EFI_ERROR (Status)) {
- return Status;
- }
- //
- // Detect Fast Bact to Bact support for the device under the bridge
- //
- Status = GetFastBackToBackSupport (Temp, PCI_PRIMARY_STATUS_OFFSET);
- if (FastB2BSupport && EFI_ERROR (Status)) {
- FastB2BSupport = FALSE;
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
- //
- // Set or clear Fast Back to Back bit for the whole bridge
- //
- if (!IsListEmpty (&PciIoDevice->ChildList)) {
-
- if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {
-
- Status = GetFastBackToBackSupport (PciIoDevice, PCI_BRIDGE_STATUS_REGISTER_OFFSET);
-
- if (EFI_ERROR (Status) || (!FastB2BSupport)) {
- FastB2BSupport = FALSE;
- PciDisableBridgeControlRegister (PciIoDevice, EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK);
- } else {
- PciEnableBridgeControlRegister (PciIoDevice, EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK);
- }
- }
-
- CurrentLink = PciIoDevice->ChildList.ForwardLink;
- while (CurrentLink && CurrentLink != &PciIoDevice->ChildList) {
- Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
- if (FastB2BSupport) {
- PciEnableCommandRegister (Temp, EFI_PCI_COMMAND_FAST_BACK_TO_BACK);
- } else {
- PciDisableCommandRegister (Temp, EFI_PCI_COMMAND_FAST_BACK_TO_BACK);
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
- }
- //
- // End for IsListEmpty
- //
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-UpdatePciInfo (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
- This routine is used to update the bar information for those incompatible PCI device
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_UNSUPPORTED - add return value to function comment
-{
- EFI_STATUS Status;
- UINTN BarIndex;
- UINTN BarEndIndex;
- BOOLEAN SetFlag;
- EFI_PCI_DEVICE_INFO PciDeviceInfo;
- VOID *Configuration;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Ptr;
-
- Configuration = NULL;
-
- //
- // Check whether the device belongs to incompatible devices or not
- // If it is , then get its special requirement in the ACPI table
- //
- PciDeviceInfo.VendorID = PciIoDevice->Pci.Hdr.VendorId;
- PciDeviceInfo.DeviceID = PciIoDevice->Pci.Hdr.DeviceId;
- PciDeviceInfo.RevisionID = PciIoDevice->Pci.Hdr.RevisionID;
- PciDeviceInfo.SubsystemVendorID = PciIoDevice->Pci.Device.SubsystemVendorID;
- PciDeviceInfo.SubsystemID = PciIoDevice->Pci.Device.SubsystemID;
-
- Status = PciResourceUpdateCheck (&PciDeviceInfo, &Configuration);
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- //
- // Update PCI device information from the ACPI table
- //
- Ptr = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
-
- while (Ptr->Desc != ACPI_END_TAG_DESCRIPTOR) {
-
- if (Ptr->Desc != ACPI_ADDRESS_SPACE_DESCRIPTOR) {
- //
- // The format is not support
- //
- break;
- }
-
- BarIndex = (UINTN) Ptr->AddrTranslationOffset;
- BarEndIndex = BarIndex;
-
- //
- // Update all the bars in the device
- //
- if (BarIndex == PCI_BAR_ALL) {
- BarIndex = 0;
- BarEndIndex = PCI_MAX_BAR - 1;
- }
-
- if (BarIndex >= PCI_MAX_BAR) {
- Ptr++;
- continue;
- }
-
- for (; BarIndex <= BarEndIndex; BarIndex++) {
- SetFlag = FALSE;
- switch (Ptr->ResType) {
- case ACPI_ADDRESS_SPACE_TYPE_MEM:
-
- //
- // Make sure the bar is memory type
- //
- if (CheckBarType (PciIoDevice, (UINT8) BarIndex, PciBarTypeMem)) {
- SetFlag = TRUE;
- }
- break;
-
- case ACPI_ADDRESS_SPACE_TYPE_IO:
-
- //
- // Make sure the bar is IO type
- //
- if (CheckBarType (PciIoDevice, (UINT8) BarIndex, PciBarTypeIo)) {
- SetFlag = TRUE;
- }
- break;
- }
-
- if (SetFlag) {
-
- //
- // Update the new alignment for the device
- //
- SetNewAlign (&(PciIoDevice->PciBar[BarIndex].Alignment), Ptr->AddrRangeMax);
-
- //
- // Update the new length for the device
- //
- if (Ptr->AddrLen != PCI_BAR_NOCHANGE) {
- PciIoDevice->PciBar[BarIndex].Length = Ptr->AddrLen;
- }
- }
- }
-
- Ptr++;
- }
-
- gBS->FreePool (Configuration);
- return Status;
-
-}
-
-VOID
-SetNewAlign (
- IN UINT64 *Alignment,
- IN UINT64 NewAlignment
- )
-/*++
-
-Routine Description:
-
- This routine will update the alignment with the new alignment
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Alignment - add argument and description to function comment
-// TODO: NewAlignment - add argument and description to function comment
-{
- UINT64 OldAlignment;
- UINTN ShiftBit;
-
- //
- // The new alignment is the same as the original,
- // so skip it
- //
- if (NewAlignment == PCI_BAR_OLD_ALIGN) {
- return ;
- }
- //
- // Check the validity of the parameter
- //
- if (NewAlignment != PCI_BAR_EVEN_ALIGN &&
- NewAlignment != PCI_BAR_SQUAD_ALIGN &&
- NewAlignment != PCI_BAR_DQUAD_ALIGN ) {
- *Alignment = NewAlignment;
- return ;
- }
-
- OldAlignment = (*Alignment) + 1;
- ShiftBit = 0;
-
- //
- // Get the first non-zero hex value of the length
- //
- while ((OldAlignment & 0x0F) == 0x00) {
- OldAlignment = RShiftU64 (OldAlignment, 4);
- ShiftBit += 4;
- }
-
- //
- // Adjust the alignment to even, quad or double quad boundary
- //
- if (NewAlignment == PCI_BAR_EVEN_ALIGN) {
- if (OldAlignment & 0x01) {
- OldAlignment = OldAlignment + 2 - (OldAlignment & 0x01);
- }
- } else if (NewAlignment == PCI_BAR_SQUAD_ALIGN) {
- if (OldAlignment & 0x03) {
- OldAlignment = OldAlignment + 4 - (OldAlignment & 0x03);
- }
- } else if (NewAlignment == PCI_BAR_DQUAD_ALIGN) {
- if (OldAlignment & 0x07) {
- OldAlignment = OldAlignment + 8 - (OldAlignment & 0x07);
- }
- }
-
- //
- // Update the old value
- //
- NewAlignment = LShiftU64 (OldAlignment, ShiftBit) - 1;
- *Alignment = NewAlignment;
-
- return ;
-}
-
-UINTN
-PciParseBar (
- IN PCI_IO_DEVICE *PciIoDevice,
- IN UINTN Offset,
- IN UINTN BarIndex
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: Offset - add argument and description to function comment
-// TODO: BarIndex - add argument and description to function comment
-{
- UINT32 Value;
- UINT32 OriginalValue;
- UINT32 Mask;
- UINT32 Data;
- UINT8 Index;
- EFI_STATUS Status;
-
- OriginalValue = 0;
- Value = 0;
-
- Status = BarExisted (
- PciIoDevice,
- Offset,
- &Value,
- &OriginalValue
- );
-
- if (EFI_ERROR (Status)) {
- PciIoDevice->PciBar[BarIndex].BaseAddress = 0;
- PciIoDevice->PciBar[BarIndex].Length = 0;
- PciIoDevice->PciBar[BarIndex].Alignment = 0;
-
- //
- // Some devices don't fully comply to PCI spec 2.2. So be to scan all the BARs anyway
- //
- PciIoDevice->PciBar[BarIndex].Offset = (UINT8) Offset;
- return Offset + 4;
- }
-
- PciIoDevice->PciBar[BarIndex].Offset = (UINT8) Offset;
- if (Value & 0x01) {
- //
- // Device I/Os
- //
- Mask = 0xfffffffc;
-
- if (Value & 0xFFFF0000) {
- //
- // It is a IO32 bar
- //
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeIo32;
- PciIoDevice->PciBar[BarIndex].Length = ((~(Value & Mask)) + 1);
- PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;
-
- } else {
- //
- // It is a IO16 bar
- //
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeIo16;
- PciIoDevice->PciBar[BarIndex].Length = 0x0000FFFF & ((~(Value & Mask)) + 1);
- PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;
-
- }
- //
- // Workaround. Some platforms inplement IO bar with 0 length
- // Need to treat it as no-bar
- //
- if (PciIoDevice->PciBar[BarIndex].Length == 0) {
- PciIoDevice->PciBar[BarIndex].BarType = (PCI_BAR_TYPE) 0;
- }
-
- PciIoDevice->PciBar[BarIndex].Prefetchable = FALSE;
- PciIoDevice->PciBar[BarIndex].BaseAddress = OriginalValue & Mask;
-
- } else {
-
- Mask = 0xfffffff0;
-
- PciIoDevice->PciBar[BarIndex].BaseAddress = OriginalValue & Mask;
-
- switch (Value & 0x07) {
-
- //
- //memory space; anywhere in 32 bit address space
- //
- case 0x00:
- if (Value & 0x08) {
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypePMem32;
- } else {
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeMem32;
- }
-
- PciIoDevice->PciBar[BarIndex].Length = (~(Value & Mask)) + 1;
- PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;
-
- break;
-
- //
- // memory space; anywhere in 64 bit address space
- //
- case 0x04:
- if (Value & 0x08) {
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypePMem64;
- } else {
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeMem64;
- }
-
- //
- // According to PCI 2.2,if the bar indicates a memory 64 decoding, next bar
- // is regarded as an extension for the first bar. As a result
- // the sizing will be conducted on combined 64 bit value
- // Here just store the masked first 32bit value for future size
- // calculation
- //
- PciIoDevice->PciBar[BarIndex].Length = Value & Mask;
- PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;
-
- //
- // Increment the offset to point to next DWORD
- //
- Offset += 4;
-
- Status = BarExisted (
- PciIoDevice,
- Offset,
- &Value,
- &OriginalValue
- );
-
- if (EFI_ERROR (Status)) {
- return Offset + 4;
- }
-
- //
- // Fix the length to support some spefic 64 bit BAR
- //
- Data = Value;
- Index = 0;
- for (Data = Value; Data != 0; Data >>= 1) {
- Index ++;
- }
- Value |= ((UINT32)(-1) << Index);
-
- //
- // Calculate the size of 64bit bar
- //
- PciIoDevice->PciBar[BarIndex].BaseAddress |= LShiftU64 ((UINT64) OriginalValue, 32);
-
- PciIoDevice->PciBar[BarIndex].Length = PciIoDevice->PciBar[BarIndex].Length | LShiftU64 ((UINT64) Value, 32);
- PciIoDevice->PciBar[BarIndex].Length = (~(PciIoDevice->PciBar[BarIndex].Length)) + 1;
- PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;
-
- break;
-
- //
- // reserved
- //
- default:
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeUnknown;
- PciIoDevice->PciBar[BarIndex].Length = (~(Value & Mask)) + 1;
- PciIoDevice->PciBar[BarIndex].Alignment = PciIoDevice->PciBar[BarIndex].Length - 1;
-
- break;
- }
- }
-
- //
- // Check the length again so as to keep compatible with some special bars
- //
- if (PciIoDevice->PciBar[BarIndex].Length == 0) {
- PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeUnknown;
- PciIoDevice->PciBar[BarIndex].BaseAddress = 0;
- PciIoDevice->PciBar[BarIndex].Alignment = 0;
- }
-
- //
- // Increment number of bar
- //
- return Offset + 4;
-}
-
-EFI_STATUS
-InitializePciDevice (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
- This routine is used to initialize the bar of a PCI device
- It can be called typically when a device is going to be rejected
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINT8 Offset;
-
- PciIo = &(PciIoDevice->PciIo);
-
- //
- // Put all the resource apertures
- // Resource base is set to all ones so as to indicate its resource
- // has not been alloacted
- //
- for (Offset = 0x10; Offset <= 0x24; Offset += sizeof (UINT32)) {
- PciIoWrite (PciIo, EfiPciIoWidthUint32, Offset, 1, &gAllOne);
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-InitializePpb (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
-
- PciIo = &(PciIoDevice->PciIo);
-
- //
- // Put all the resource apertures including IO16
- // Io32, pMem32, pMem64 to quiescent state
- // Resource base all ones, Resource limit all zeros
- //
- PciIoWrite (PciIo, EfiPciIoWidthUint8, 0x1C, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint8, 0x1D, 1, &gAllZero);
-
- PciIoWrite (PciIo, EfiPciIoWidthUint16, 0x20, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint16, 0x22, 1, &gAllZero);
-
- PciIoWrite (PciIo, EfiPciIoWidthUint16, 0x24, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint16, 0x26, 1, &gAllZero);
-
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x28, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x2C, 1, &gAllZero);
-
- //
- // don't support use io32 as for now
- //
- PciIoWrite (PciIo, EfiPciIoWidthUint16, 0x30, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint16, 0x32, 1, &gAllZero);
-
- //
- // Force Interrupt line to zero for cards that come up randomly
- //
- PciIoWrite (PciIo, EfiPciIoWidthUint8, 0x3C, 1, &gAllZero);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-InitializeP2C (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
-
- PciIo = &(PciIoDevice->PciIo);
-
- //
- // Put all the resource apertures including IO16
- // Io32, pMem32, pMem64 to quiescent state(
- // Resource base all ones, Resource limit all zeros
- //
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x1c, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x20, 1, &gAllZero);
-
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x24, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x28, 1, &gAllZero);
-
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x2c, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x30, 1, &gAllZero);
-
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x34, 1, &gAllOne);
- PciIoWrite (PciIo, EfiPciIoWidthUint32, 0x38, 1, &gAllZero);
-
- //
- // Force Interrupt line to zero for cards that come up randomly
- //
- PciIoWrite (PciIo, EfiPciIoWidthUint8, 0x3C, 1, &gAllZero);
- return EFI_SUCCESS;
-}
-
-PCI_IO_DEVICE *
-CreatePciIoDevice (
- IN EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo,
- IN PCI_TYPE00 *Pci,
- UINT8 Bus,
- UINT8 Device,
- UINT8 Func
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciRootBridgeIo - add argument and description to function comment
-// TODO: Pci - add argument and description to function comment
-// TODO: Bus - add argument and description to function comment
-// TODO: Device - add argument and description to function comment
-// TODO: Func - add argument and description to function comment
-{
-
- EFI_STATUS Status;
- PCI_IO_DEVICE *PciIoDevice;
-
- PciIoDevice = NULL;
-
- Status = gBS->AllocatePool (
- EfiBootServicesData,
- sizeof (PCI_IO_DEVICE),
- (VOID **) &PciIoDevice
- );
-
- if (EFI_ERROR (Status)) {
- return NULL;
- }
-
- ZeroMem (PciIoDevice, sizeof (PCI_IO_DEVICE));
-
- PciIoDevice->Signature = PCI_IO_DEVICE_SIGNATURE;
- PciIoDevice->Handle = NULL;
- PciIoDevice->PciRootBridgeIo = PciRootBridgeIo;
- PciIoDevice->DevicePath = NULL;
- PciIoDevice->BusNumber = Bus;
- PciIoDevice->DeviceNumber = Device;
- PciIoDevice->FunctionNumber = Func;
- PciIoDevice->Decodes = 0;
- if (gFullEnumeration) {
- PciIoDevice->Allocated = FALSE;
- } else {
- PciIoDevice->Allocated = TRUE;
- }
-
- PciIoDevice->Registered = FALSE;
- PciIoDevice->Attributes = 0;
- PciIoDevice->Supports = 0;
- PciIoDevice->BusOverride = FALSE;
- PciIoDevice->AllOpRomProcessed = FALSE;
-
- PciIoDevice->IsPciExp = FALSE;
-
- CopyMem (&(PciIoDevice->Pci), Pci, sizeof (PCI_TYPE01));
-
- //
- // Initialize the PCI I/O instance structure
- //
-
- Status = InitializePciIoInstance (PciIoDevice);
- Status = InitializePciDriverOverrideInstance (PciIoDevice);
-
- if (EFI_ERROR (Status)) {
- gBS->FreePool (PciIoDevice);
- return NULL;
- }
-
- //
- // Initialize the reserved resource list
- //
- InitializeListHead (&PciIoDevice->ReservedResourceList);
-
- //
- // Initialize the driver list
- //
- InitializeListHead (&PciIoDevice->OptionRomDriverList);
-
- //
- // Initialize the child list
- //
- InitializeListHead (&PciIoDevice->ChildList);
-
- return PciIoDevice;
-}
-
-EFI_STATUS
-PciEnumeratorLight (
- IN EFI_HANDLE Controller
- )
-/*++
-
-Routine Description:
-
- This routine is used to enumerate entire pci bus system
- in a given platform
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Controller - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- EFI_STATUS Status;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
- PCI_IO_DEVICE *RootBridgeDev;
- UINT16 MinBus;
- UINT16 MaxBus;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;
-
- MinBus = 0;
- MaxBus = PCI_MAX_BUS;
- Descriptors = NULL;
-
- //
- // If this host bridge has been already enumerated, then return successfully
- //
- if (RootBridgeExisted (Controller)) {
- return EFI_SUCCESS;
- }
-
- //
- // Open pci root bridge io protocol
- //
- Status = gBS->OpenProtocol (
- Controller,
- &gEfiPciRootBridgeIoProtocolGuid,
- (VOID **) &PciRootBridgeIo,
- gPciBusDriverBinding.DriverBindingHandle,
- Controller,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
- if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
- return Status;
- }
-
- Status = PciRootBridgeIo->Configuration (PciRootBridgeIo, (VOID **) &Descriptors);
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- while (PciGetBusRange (&Descriptors, &MinBus, &MaxBus, NULL) == EFI_SUCCESS) {
-
- //
- // Create a device node for root bridge device with a NULL host bridge controller handle
- //
- RootBridgeDev = CreateRootBridge (Controller);
-
- if (!RootBridgeDev) {
- Descriptors++;
- continue;
- }
-
- //
- // Record the root bridge io protocol
- //
- RootBridgeDev->PciRootBridgeIo = PciRootBridgeIo;
-
- Status = PciPciDeviceInfoCollector (
- RootBridgeDev,
- (UINT8) MinBus
- );
-
- if (!EFI_ERROR (Status)) {
-
- //
- // Remove those PCI devices which are rejected when full enumeration
- //
- RemoveRejectedPciDevices (RootBridgeDev->Handle, RootBridgeDev);
-
- //
- // Process option rom light
- //
- ProcessOptionRomLight (RootBridgeDev);
-
- //
- // Determine attributes for all devices under this root bridge
- //
- DetermineDeviceAttribute (RootBridgeDev);
-
- //
- // If successfully, insert the node into device pool
- //
- InsertRootBridge (RootBridgeDev);
- } else {
-
- //
- // If unsuccessly, destroy the entire node
- //
- DestroyRootBridge (RootBridgeDev);
- }
-
- Descriptors++;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-PciGetBusRange (
- IN EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR **Descriptors,
- OUT UINT16 *MinBus,
- OUT UINT16 *MaxBus,
- OUT UINT16 *BusRange
- )
-/*++
-
-Routine Description:
-
- Get the bus range.
-
-Arguments:
-
- Descriptors - A pointer to the address space descriptor.
- MinBus - The min bus.
- MaxBus - The max bus.
- BusRange - The bus range.
-
-Returns:
-
- Status Code.
-
---*/
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_NOT_FOUND - add return value to function comment
-{
-
- while ((*Descriptors)->Desc != ACPI_END_TAG_DESCRIPTOR) {
- if ((*Descriptors)->ResType == ACPI_ADDRESS_SPACE_TYPE_BUS) {
- if (MinBus != NULL) {
- *MinBus = (UINT16) (*Descriptors)->AddrRangeMin;
- }
-
- if (MaxBus != NULL) {
- *MaxBus = (UINT16) (*Descriptors)->AddrRangeMax;
- }
-
- if (BusRange != NULL) {
- *BusRange = (UINT16) (*Descriptors)->AddrLen;
- }
-
- return EFI_SUCCESS;
- }
-
- (*Descriptors)++;
- }
-
- return EFI_NOT_FOUND;
-}
-
-EFI_STATUS
-StartManagingRootBridge (
- IN PCI_IO_DEVICE *RootBridgeDev
- )
-/*++
-
-Routine Description:
-
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: RootBridgeDev - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_HANDLE RootBridgeHandle;
- EFI_STATUS Status;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
-
- //
- // Get the root bridge handle
- //
- RootBridgeHandle = RootBridgeDev->Handle;
- PciRootBridgeIo = NULL;
-
- //
- // Get the pci root bridge io protocol
- //
- Status = gBS->OpenProtocol (
- RootBridgeHandle,
- &gEfiPciRootBridgeIoProtocolGuid,
- (VOID **) &PciRootBridgeIo,
- gPciBusDriverBinding.DriverBindingHandle,
- RootBridgeHandle,
- EFI_OPEN_PROTOCOL_BY_DRIVER
- );
-
- if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {
- return Status;
- }
-
- //
- // Store the PciRootBridgeIo protocol into root bridge private data
- //
- RootBridgeDev->PciRootBridgeIo = PciRootBridgeIo;
-
- return EFI_SUCCESS;
-
-}
-
-BOOLEAN
-IsPciDeviceRejected (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
- This routine can be used to check whether a PCI device should be rejected when light enumeration
-
-Arguments:
-
-Returns:
-
- TRUE This device should be rejected
- FALSE This device shouldn't be rejected
-
---*/
-// TODO: PciIoDevice - add argument and description to function comment
-{
- EFI_STATUS Status;
- UINT32 TestValue;
- UINT32 OldValue;
- UINT32 Mask;
- UINT8 BarOffset;
-
- //
- // PPB should be skip!
- //
- if (IS_PCI_BRIDGE (&PciIoDevice->Pci)) {
- return FALSE;
- }
-
- if (IS_CARDBUS_BRIDGE (&PciIoDevice->Pci)) {
- //
- // Only test base registers for P2C
- //
- for (BarOffset = 0x1C; BarOffset <= 0x38; BarOffset += 2 * sizeof (UINT32)) {
-
- Mask = (BarOffset < 0x2C) ? 0xFFFFF000 : 0xFFFFFFFC;
- Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);
- if (EFI_ERROR (Status)) {
- continue;
- }
-
- TestValue = TestValue & Mask;
- if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
- //
- // The bar isn't programed, so it should be rejected
- //
- return TRUE;
- }
- }
-
- return FALSE;
- }
-
- for (BarOffset = 0x14; BarOffset <= 0x24; BarOffset += sizeof (UINT32)) {
- //
- // Test PCI devices
- //
- Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);
- if (EFI_ERROR (Status)) {
- continue;
- }
-
- if (TestValue & 0x01) {
-
- //
- // IO Bar
- //
-
- Mask = 0xFFFFFFFC;
- TestValue = TestValue & Mask;
- if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
- return TRUE;
- }
-
- } else {
-
- //
- // Mem Bar
- //
-
- Mask = 0xFFFFFFF0;
- TestValue = TestValue & Mask;
-
- if ((TestValue & 0x07) == 0x04) {
-
- //
- // Mem64 or PMem64
- //
- BarOffset += sizeof (UINT32);
- if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
-
- //
- // Test its high 32-Bit BAR
- //
-
- Status = BarExisted (PciIoDevice, BarOffset, &TestValue, &OldValue);
- if (TestValue == OldValue) {
- return TRUE;
- }
- }
-
- } else {
-
- //
- // Mem32 or PMem32
- //
- if ((TestValue != 0) && (TestValue == (OldValue & Mask))) {
- return TRUE;
- }
- }
- }
- }
-
- return FALSE;
-}
-
-EFI_STATUS
-ResetAllPpbBusReg (
- IN PCI_IO_DEVICE *Bridge,
- IN UINT8 StartBusNumber
- )
-/*++
-
-Routine Description:
-
- TODO: Add function description
-
-Arguments:
-
- Bridge - TODO: add argument description
- StartBusNumber - TODO: add argument description
-
-Returns:
-
- EFI_SUCCESS - TODO: Add description for return value
-
---*/
-{
- EFI_STATUS Status;
- PCI_TYPE00 Pci;
- UINT8 Device;
- UINT32 Register;
- UINT8 Func;
- UINT64 Address;
- EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
-
- PciRootBridgeIo = Bridge->PciRootBridgeIo;
-
- for (Device = 0; Device <= PCI_MAX_DEVICE; Device++) {
- for (Func = 0; Func <= PCI_MAX_FUNC; Func++) {
-
- //
- // Check to see whether a pci device is present
- //
- Status = PciDevicePresent (
- PciRootBridgeIo,
- &Pci,
- StartBusNumber,
- Device,
- Func
- );
-
- if (!EFI_ERROR (Status) && (IS_PCI_BRIDGE (&Pci))) {
- Register = 0;
- Address = EFI_PCI_ADDRESS (StartBusNumber, Device, Func, 0x18);
- Status = PciRootBridgeIoRead (
- PciRootBridgeIo,
- &Pci,
- EfiPciWidthUint32,
- Address,
- 1,
- &Register
- );
- //
- // Reset register 18h, 19h, 1Ah on PCI Bridge
- //
- Register &= 0xFF000000;
- Status = PciRootBridgeIoWrite (
- PciRootBridgeIo,
- &Pci,
- EfiPciWidthUint32,
- Address,
- 1,
- &Register
- );
- }
-
- if (Func == 0 && !IS_PCI_MULTI_FUNC (&Pci)) {
- //
- // Skip sub functions, this is not a multi function device
- //
- Func = PCI_MAX_FUNC;
- }
- }
- }
-
- return EFI_SUCCESS;
-}
-
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