mirror of https://github.com/acidanthera/audk.git
318 lines
11 KiB
C
318 lines
11 KiB
C
/** @file
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Collect IDE information from Native EFI Driver
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions
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of the BSD License which accompanies this distribution. The
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full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "LegacyBiosInterface.h"
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BOOLEAN mIdeDataBuiltFlag = FALSE;
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/**
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Collect IDE Inquiry data from the IDE disks
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@param Private Legacy BIOS Instance data
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@param HddInfo Hdd Information
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@param Flag Reconnect IdeController or not
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@retval EFI_SUCCESS It should always work.
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**/
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EFI_STATUS
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LegacyBiosBuildIdeData (
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IN LEGACY_BIOS_INSTANCE *Private,
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IN HDD_INFO **HddInfo,
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IN UINT16 Flag
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)
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{
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EFI_STATUS Status;
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EFI_HANDLE IdeController;
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UINTN HandleCount;
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EFI_HANDLE *HandleBuffer;
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UINTN Index;
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EFI_DISK_INFO_PROTOCOL *DiskInfo;
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UINT32 IdeChannel;
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UINT32 IdeDevice;
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UINT32 Size;
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UINT8 *InquiryData;
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UINT32 InquiryDataSize;
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HDD_INFO *LocalHddInfo;
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UINT32 PciIndex;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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EFI_DEVICE_PATH_PROTOCOL *DevicePathNode;
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EFI_DEVICE_PATH_PROTOCOL *TempDevicePathNode;
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PCI_DEVICE_PATH *PciDevicePath;
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//
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// Only build data once
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// We have a problem with GetBbsInfo in that it can be invoked two
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// places. Once in BDS, when all EFI drivers are connected and once in
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// LegacyBoot after all EFI drivers are disconnected causing this routine
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// to hang. In LegacyBoot this function is also called before EFI drivers
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// are disconnected.
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// Cases covered
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// GetBbsInfo invoked in BDS. Both invocations in LegacyBoot ignored.
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// GetBbsInfo not invoked in BDS. First invocation of this function
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// proceeds normally and second via GetBbsInfo ignored.
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//
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PciDevicePath = NULL;
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LocalHddInfo = *HddInfo;
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Status = Private->LegacyBiosPlatform->GetPlatformHandle (
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Private->LegacyBiosPlatform,
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EfiGetPlatformIdeHandle,
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0,
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&HandleBuffer,
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&HandleCount,
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(VOID *) &LocalHddInfo
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);
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if (!EFI_ERROR (Status)) {
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IdeController = HandleBuffer[0];
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//
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// Force IDE drive spin up!
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//
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if (Flag != 0) {
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gBS->DisconnectController (
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IdeController,
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NULL,
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NULL
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);
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}
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gBS->ConnectController (IdeController, NULL, NULL, FALSE);
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//
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// Do GetIdeHandle twice since disconnect/reconnect will switch to native mode
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// And GetIdeHandle will switch to Legacy mode, if required.
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//
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Private->LegacyBiosPlatform->GetPlatformHandle (
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Private->LegacyBiosPlatform,
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EfiGetPlatformIdeHandle,
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0,
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&HandleBuffer,
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&HandleCount,
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(VOID *) &LocalHddInfo
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);
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}
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mIdeDataBuiltFlag = TRUE;
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//
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// Get Identity command from all drives
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//
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gBS->LocateHandleBuffer (
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ByProtocol,
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&gEfiDiskInfoProtocolGuid,
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NULL,
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&HandleCount,
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&HandleBuffer
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);
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Private->IdeDriveCount = (UINT8) HandleCount;
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for (Index = 0; Index < HandleCount; Index++) {
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Status = gBS->HandleProtocol (
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HandleBuffer[Index],
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&gEfiDiskInfoProtocolGuid,
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(VOID **) &DiskInfo
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);
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ASSERT_EFI_ERROR (Status);
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if (CompareGuid (&DiskInfo->Interface, &gEfiDiskInfoIdeInterfaceGuid)) {
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//
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// Locate which PCI device
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//
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Status = gBS->HandleProtocol (
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HandleBuffer[Index],
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&gEfiDevicePathProtocolGuid,
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(VOID *) &DevicePath
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);
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ASSERT_EFI_ERROR (Status);
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DevicePathNode = DevicePath;
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while (!IsDevicePathEnd (DevicePathNode)) {
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TempDevicePathNode = NextDevicePathNode (DevicePathNode);
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if ((DevicePathType (DevicePathNode) == HARDWARE_DEVICE_PATH) &&
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( DevicePathSubType (DevicePathNode) == HW_PCI_DP) &&
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( DevicePathType(TempDevicePathNode) == MESSAGING_DEVICE_PATH) &&
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( DevicePathSubType(TempDevicePathNode) == MSG_ATAPI_DP) ) {
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PciDevicePath = (PCI_DEVICE_PATH *) DevicePathNode;
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break;
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}
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DevicePathNode = NextDevicePathNode (DevicePathNode);
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}
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if (PciDevicePath == NULL) {
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continue;
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}
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//
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// Find start of PCI device in HddInfo. The assumption of the data
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// structure is 2 controllers(channels) per PCI device and each
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// controller can have 2 drives(devices).
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// HddInfo[PciIndex+0].[0] = Channel[0].Device[0] Primary Master
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// HddInfo[PciIndex+0].[1] = Channel[0].Device[1] Primary Slave
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// HddInfo[PciIndex+1].[0] = Channel[1].Device[0] Secondary Master
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// HddInfo[PciIndex+1].[1] = Channel[1].Device[1] Secondary Slave
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// @bug eventually need to pass in max number of entries
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// for end of for loop
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//
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for (PciIndex = 0; PciIndex < 8; PciIndex++) {
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if ((PciDevicePath->Device == LocalHddInfo[PciIndex].Device) &&
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(PciDevicePath->Function == LocalHddInfo[PciIndex].Function)
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) {
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break;
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}
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}
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if (PciIndex == 8) {
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continue;
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}
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Status = DiskInfo->WhichIde (DiskInfo, &IdeChannel, &IdeDevice);
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if (!EFI_ERROR (Status)) {
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Size = sizeof (ATAPI_IDENTIFY);
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DiskInfo->Identify (
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DiskInfo,
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&LocalHddInfo[PciIndex + IdeChannel].IdentifyDrive[IdeDevice],
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&Size
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);
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if (IdeChannel == 0) {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_PRIMARY;
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} else if (IdeChannel == 1) {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_SECONDARY;
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}
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InquiryData = NULL;
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InquiryDataSize = 0;
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Status = DiskInfo->Inquiry (
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DiskInfo,
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NULL,
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&InquiryDataSize
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);
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if (Status == EFI_BUFFER_TOO_SMALL) {
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InquiryData = (UINT8 *) AllocatePool (
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InquiryDataSize
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);
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if (InquiryData != NULL) {
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Status = DiskInfo->Inquiry (
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DiskInfo,
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InquiryData,
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&InquiryDataSize
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);
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}
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} else {
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Status = EFI_DEVICE_ERROR;
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}
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//
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// If ATAPI device then Inquiry will pass and ATA fail.
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//
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if (!EFI_ERROR (Status)) {
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ASSERT (InquiryData != NULL);
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//
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// If IdeDevice = 0 then set master bit, else slave bit
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//
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if (IdeDevice == 0) {
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if ((InquiryData[0] & 0x1f) == 0x05) {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_MASTER_ATAPI_CDROM;
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} else if ((InquiryData[0] & 0x1f) == 0x00) {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_MASTER_ATAPI_ZIPDISK;
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}
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} else {
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if ((InquiryData[0] & 0x1f) == 0x05) {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_SLAVE_ATAPI_CDROM;
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} else if ((InquiryData[0] & 0x1f) == 0x00) {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_SLAVE_ATAPI_ZIPDISK;
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}
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}
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FreePool (InquiryData);
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} else {
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if (IdeDevice == 0) {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_MASTER_IDE;
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} else {
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LocalHddInfo[PciIndex + IdeChannel].Status |= HDD_SLAVE_IDE;
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}
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}
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}
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}
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}
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if (HandleBuffer != NULL) {
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FreePool (HandleBuffer);
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}
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return EFI_SUCCESS;
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}
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/**
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If the IDE channel is in compatibility (legacy) mode, remove all
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PCI I/O BAR addresses from the controller.
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@param IdeController The handle of target IDE controller
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**/
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VOID
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InitLegacyIdeController (
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IN EFI_HANDLE IdeController
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)
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{
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EFI_PCI_IO_PROTOCOL *PciIo;
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UINT32 IOBarClear;
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EFI_STATUS Status;
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PCI_TYPE00 PciData;
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//
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// If the IDE channel is in compatibility (legacy) mode, remove all
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// PCI I/O BAR addresses from the controller. Some software gets
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// confused if an IDE controller is in compatibility (legacy) mode
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// and has PCI I/O resources allocated
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//
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Status = gBS->HandleProtocol (
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IdeController,
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&gEfiPciIoProtocolGuid,
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(VOID **)&PciIo
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);
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if (EFI_ERROR (Status)) {
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return ;
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}
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Status = PciIo->Pci.Read (PciIo, EfiPciIoWidthUint8, 0, sizeof (PciData), &PciData);
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if (EFI_ERROR (Status)) {
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return ;
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}
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//
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// Check whether this is IDE
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//
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if ((PciData.Hdr.ClassCode[2] != PCI_CLASS_MASS_STORAGE) ||
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(PciData.Hdr.ClassCode[1] != PCI_CLASS_MASS_STORAGE_IDE)) {
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return ;
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}
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//
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// Clear bar for legacy IDE
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//
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IOBarClear = 0x00;
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if ((PciData.Hdr.ClassCode[0] & IDE_PI_REGISTER_PNE) == 0) {
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PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x10, 1, &IOBarClear);
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PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x14, 1, &IOBarClear);
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}
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if ((PciData.Hdr.ClassCode[0] & IDE_PI_REGISTER_SNE) == 0) {
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PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x18, 1, &IOBarClear);
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PciIo->Pci.Write (PciIo, EfiPciIoWidthUint32, 0x1C, 1, &IOBarClear);
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}
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return ;
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}
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