diff options
Diffstat (limited to 'MdeModulePkg/Bus/Sd/SdBlockIoPei/SdBlockIoPei.c')
| -rw-r--r-- | MdeModulePkg/Bus/Sd/SdBlockIoPei/SdBlockIoPei.c | 617 |
1 files changed, 617 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdBlockIoPei.c b/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdBlockIoPei.c new file mode 100644 index 0000000000..6dc343edbd --- /dev/null +++ b/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdBlockIoPei.c @@ -0,0 +1,617 @@ +/** @file
+
+ Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+ This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include "SdBlockIoPei.h"
+
+//
+// Template for SD HC Slot Data.
+//
+SD_PEIM_HC_SLOT gSdHcSlotTemplate = {
+ SD_PEIM_SLOT_SIG, // Signature
+ { // Media
+ MSG_SD_DP,
+ FALSE,
+ TRUE,
+ FALSE,
+ 0x200,
+ 0
+ },
+ 0, // SdHcBase
+ { // Capability
+ 0,
+ },
+ { // Csd
+ 0,
+ },
+ TRUE, // SectorAddressing
+ NULL // Private
+};
+
+//
+// Template for SD HC Private Data.
+//
+SD_PEIM_HC_PRIVATE_DATA gSdHcPrivateTemplate = {
+ SD_PEIM_SIG, // Signature
+ NULL, // Pool
+ { // BlkIoPpi
+ SdBlockIoPeimGetDeviceNo,
+ SdBlockIoPeimGetMediaInfo,
+ SdBlockIoPeimReadBlocks
+ },
+ { // BlkIo2Ppi
+ EFI_PEI_RECOVERY_BLOCK_IO2_PPI_REVISION,
+ SdBlockIoPeimGetDeviceNo2,
+ SdBlockIoPeimGetMediaInfo2,
+ SdBlockIoPeimReadBlocks2
+ },
+ { // BlkIoPpiList
+ EFI_PEI_PPI_DESCRIPTOR_PPI,
+ &gEfiPeiVirtualBlockIoPpiGuid,
+ NULL
+ },
+ { // BlkIo2PpiList
+ EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
+ &gEfiPeiVirtualBlockIo2PpiGuid,
+ NULL
+ },
+ { // Slot
+ {
+ 0,
+ },
+ {
+ 0,
+ },
+ {
+ 0,
+ },
+ {
+ 0,
+ },
+ {
+ 0,
+ },
+ {
+ 0,
+ }
+ },
+ 0, // SlotNum
+ 0 // TotalBlkIoDevices
+};
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. To the PEI ATAPI driver, it returns the number
+ of all the detected ATAPI devices it detects during the enumeration process.
+ To the PEI legacy floppy driver, it returns the number of all the legacy
+ devices it finds during its enumeration process. If no device is detected,
+ then the function will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS The operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+SdBlockIoPeimGetDeviceNo (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ )
+{
+ SD_PEIM_HC_PRIVATE_DATA *Private;
+
+ Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS (This);
+ *NumberBlockDevices = Private->TotalBlkIoDevices;
+ return EFI_SUCCESS;
+}
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @par Note:
+ The MediaInfo structure describes an enumeration of possible block device
+ types. This enumeration exists because no device paths are actually passed
+ across interfaces that describe the type or class of hardware that is publishing
+ the block I/O interface. This enumeration will allow for policy decisions
+ in the Recovery PEIM, such as "Try to recover from legacy floppy first,
+ LS-120 second, CD-ROM third." If there are multiple partitions abstracted
+ by a given device type, they should be reported in ascending order; this
+ order also applies to nested partitions, such as legacy MBR, where the
+ outermost partitions would have precedence in the reporting order. The
+ same logic applies to systems such as IDE that have precedence relationships
+ like "Master/Slave" or "Primary/Secondary". The master device should be
+ reported first, the slave second.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+
+**/
+EFI_STATUS
+EFIAPI
+SdBlockIoPeimGetMediaInfo (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo
+ )
+{
+ SD_PEIM_HC_PRIVATE_DATA *Private;
+
+ Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS (This);
+
+ if ((DeviceIndex == 0) || (DeviceIndex > Private->TotalBlkIoDevices)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ MediaInfo->DeviceType = SD;
+ MediaInfo->MediaPresent = TRUE;
+ MediaInfo->LastBlock = (UINTN)Private->Slot[DeviceIndex - 1].Media.LastBlock;
+ MediaInfo->BlockSize = Private->Slot[DeviceIndex - 1].Media.BlockSize;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the ownership of the
+ buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+SdBlockIoPeimReadBlocks (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ UINT32 BlockSize;
+ UINTN NumberOfBlocks;
+ SD_PEIM_HC_PRIVATE_DATA *Private;
+ UINTN Remaining;
+ UINT32 MaxBlock;
+
+ Status = EFI_SUCCESS;
+ Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS (This);
+
+ //
+ // Check parameters
+ //
+ if (Buffer == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (BufferSize == 0) {
+ return EFI_SUCCESS;
+ }
+
+ if ((DeviceIndex == 0) || (DeviceIndex > Private->TotalBlkIoDevices)) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ BlockSize = Private->Slot[DeviceIndex - 1].Media.BlockSize;
+ if (BufferSize % BlockSize != 0) {
+ return EFI_BAD_BUFFER_SIZE;
+ }
+
+ if (StartLBA > Private->Slot[DeviceIndex - 1].Media.LastBlock) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ NumberOfBlocks = BufferSize / BlockSize;
+
+ //
+ // Start to execute data transfer. The max block number in single cmd is 65535 blocks.
+ //
+ Remaining = NumberOfBlocks;
+ MaxBlock = 0xFFFF;
+
+ while (Remaining > 0) {
+ if (Remaining <= MaxBlock) {
+ NumberOfBlocks = Remaining;
+ } else {
+ NumberOfBlocks = MaxBlock;
+ }
+
+ BufferSize = NumberOfBlocks * BlockSize;
+ if (NumberOfBlocks != 1) {
+ Status = SdPeimRwMultiBlocks (&Private->Slot[DeviceIndex - 1], StartLBA, BlockSize, Buffer, BufferSize, TRUE);
+ } else {
+ Status = SdPeimRwSingleBlock (&Private->Slot[DeviceIndex - 1], StartLBA, BlockSize, Buffer, BufferSize, TRUE);
+ }
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ StartLBA += NumberOfBlocks;
+ Buffer = (UINT8*)Buffer + BufferSize;
+ Remaining -= NumberOfBlocks;
+ }
+ return Status;
+}
+
+/**
+ Gets the count of block I/O devices that one specific block driver detects.
+
+ This function is used for getting the count of block I/O devices that one
+ specific block driver detects. To the PEI ATAPI driver, it returns the number
+ of all the detected ATAPI devices it detects during the enumeration process.
+ To the PEI legacy floppy driver, it returns the number of all the legacy
+ devices it finds during its enumeration process. If no device is detected,
+ then the function will return zero.
+
+ @param[in] PeiServices General-purpose services that are available
+ to every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI
+ instance.
+ @param[out] NumberBlockDevices The number of block I/O devices discovered.
+
+ @retval EFI_SUCCESS The operation performed successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+SdBlockIoPeimGetDeviceNo2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ OUT UINTN *NumberBlockDevices
+ )
+{
+ SD_PEIM_HC_PRIVATE_DATA *Private;
+
+ Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS2 (This);
+ *NumberBlockDevices = Private->TotalBlkIoDevices;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ Gets a block device's media information.
+
+ This function will provide the caller with the specified block device's media
+ information. If the media changes, calling this function will update the media
+ information accordingly.
+
+ @param[in] PeiServices General-purpose services that are available to every
+ PEIM
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, the PPIs that
+ want to talk to a single device must specify the
+ device index that was assigned during the enumeration
+ process. This index is a number from one to
+ NumberBlockDevices.
+ @param[out] MediaInfo The media information of the specified block media.
+ The caller is responsible for the ownership of this
+ data structure.
+
+ @par Note:
+ The MediaInfo structure describes an enumeration of possible block device
+ types. This enumeration exists because no device paths are actually passed
+ across interfaces that describe the type or class of hardware that is publishing
+ the block I/O interface. This enumeration will allow for policy decisions
+ in the Recovery PEIM, such as "Try to recover from legacy floppy first,
+ LS-120 second, CD-ROM third." If there are multiple partitions abstracted
+ by a given device type, they should be reported in ascending order; this
+ order also applies to nested partitions, such as legacy MBR, where the
+ outermost partitions would have precedence in the reporting order. The
+ same logic applies to systems such as IDE that have precedence relationships
+ like "Master/Slave" or "Primary/Secondary". The master device should be
+ reported first, the slave second.
+
+ @retval EFI_SUCCESS Media information about the specified block device
+ was obtained successfully.
+ @retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
+ error.
+
+**/
+EFI_STATUS
+EFIAPI
+SdBlockIoPeimGetMediaInfo2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo
+ )
+{
+ EFI_STATUS Status;
+ SD_PEIM_HC_PRIVATE_DATA *Private;
+ EFI_PEI_BLOCK_IO_MEDIA Media;
+
+ Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS2 (This);
+
+ Status = SdBlockIoPeimGetMediaInfo (
+ PeiServices,
+ &Private->BlkIoPpi,
+ DeviceIndex,
+ &Media
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ CopyMem (MediaInfo, &(Private->Slot[DeviceIndex - 1].Media), sizeof (EFI_PEI_BLOCK_IO2_MEDIA));
+ return EFI_SUCCESS;
+}
+
+/**
+ Reads the requested number of blocks from the specified block device.
+
+ The function reads the requested number of blocks from the device. All the
+ blocks are read, or an error is returned. If there is no media in the device,
+ the function returns EFI_NO_MEDIA.
+
+ @param[in] PeiServices General-purpose services that are available to
+ every PEIM.
+ @param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
+ @param[in] DeviceIndex Specifies the block device to which the function wants
+ to talk. Because the driver that implements Block I/O
+ PPIs will manage multiple block devices, PPIs that
+ want to talk to a single device must specify the device
+ index that was assigned during the enumeration process.
+ This index is a number from one to NumberBlockDevices.
+ @param[in] StartLBA The starting logical block address (LBA) to read from
+ on the device
+ @param[in] BufferSize The size of the Buffer in bytes. This number must be
+ a multiple of the intrinsic block size of the device.
+ @param[out] Buffer A pointer to the destination buffer for the data.
+ The caller is responsible for the ownership of the
+ buffer.
+
+ @retval EFI_SUCCESS The data was read correctly from the device.
+ @retval EFI_DEVICE_ERROR The device reported an error while attempting
+ to perform the read operation.
+ @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
+ valid, or the buffer is not properly aligned.
+ @retval EFI_NO_MEDIA There is no media in the device.
+ @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
+ the intrinsic block size of the device.
+
+**/
+EFI_STATUS
+EFIAPI
+SdBlockIoPeimReadBlocks2 (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
+ IN UINTN DeviceIndex,
+ IN EFI_PEI_LBA StartLBA,
+ IN UINTN BufferSize,
+ OUT VOID *Buffer
+ )
+{
+ EFI_STATUS Status;
+ SD_PEIM_HC_PRIVATE_DATA *Private;
+
+ Status = EFI_SUCCESS;
+ Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS2 (This);
+
+ Status = SdBlockIoPeimReadBlocks (
+ PeiServices,
+ &Private->BlkIoPpi,
+ DeviceIndex,
+ StartLBA,
+ BufferSize,
+ Buffer
+ );
+ return Status;
+}
+
+/**
+ The user code starts with this function.
+
+ @param FileHandle Handle of the file being invoked.
+ @param PeiServices Describes the list of possible PEI Services.
+
+ @retval EFI_SUCCESS The driver is successfully initialized.
+ @retval Others Can't initialize the driver.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeSdBlockIoPeim (
+ IN EFI_PEI_FILE_HANDLE FileHandle,
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+{
+ EFI_STATUS Status;
+ SD_PEIM_HC_PRIVATE_DATA *Private;
+ EDKII_SD_MMC_HOST_CONTROLLER_PPI *SdMmcHcPpi;
+ UINT32 Index;
+ UINTN *MmioBase;
+ UINT8 BarNum;
+ UINT8 SlotNum;
+ UINT8 Controller;
+ UINT64 Capacity;
+ SD_HC_SLOT_CAP Capability;
+ SD_PEIM_HC_SLOT *Slot;
+ SD_CSD *Csd;
+ SD_CSD2 *Csd2;
+ UINT32 CSize;
+ UINT32 CSizeMul;
+ UINT32 ReadBlLen;
+
+ //
+ // Shadow this PEIM to run from memory
+ //
+ if (!EFI_ERROR (PeiServicesRegisterForShadow (FileHandle))) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // locate Sd host controller PPI
+ //
+ Status = PeiServicesLocatePpi (
+ &gEdkiiPeiSdMmcHostControllerPpiGuid,
+ 0,
+ NULL,
+ (VOID **) &SdMmcHcPpi
+ );
+ if (EFI_ERROR (Status)) {
+ return EFI_DEVICE_ERROR;
+ }
+
+ Controller = 0;
+ MmioBase = NULL;
+ while (TRUE) {
+ Status = SdMmcHcPpi->GetSdMmcHcMmioBar (SdMmcHcPpi, Controller, &MmioBase, &BarNum);
+ //
+ // When status is error, meant no controller is found
+ //
+ if (EFI_ERROR (Status)) {
+ break;
+ }
+
+ if (BarNum == 0) {
+ Controller++;
+ continue;
+ }
+
+ Private = AllocateCopyPool (sizeof (SD_PEIM_HC_PRIVATE_DATA), &gSdHcPrivateTemplate);
+ if (Private == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ break;
+ }
+ Private->BlkIoPpiList.Ppi = (VOID*)&Private->BlkIoPpi;
+ Private->BlkIo2PpiList.Ppi = (VOID*)&Private->BlkIo2Ppi;
+ //
+ // Initialize the memory pool which will be used in all transactions.
+ //
+ Status = SdPeimInitMemPool (Private);
+ if (EFI_ERROR (Status)) {
+ Status = EFI_OUT_OF_RESOURCES;
+ break;
+ }
+
+ for (Index = 0; Index < BarNum; Index++) {
+ Status = SdPeimHcGetCapability (MmioBase[Index], &Capability);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ if (Capability.SlotType != 0x1) {
+ DEBUG ((EFI_D_INFO, "The slot at 0x%x is not embedded slot type\n", MmioBase[Index]));
+ Status = EFI_UNSUPPORTED;
+ continue;
+ }
+
+ Status = SdPeimHcReset (MmioBase[Index]);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ Status = SdPeimHcCardDetect (MmioBase[Index]);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+ Status = SdPeimHcInitHost (MmioBase[Index]);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ SlotNum = Private->SlotNum;
+ Slot = &Private->Slot[SlotNum];
+ CopyMem (Slot, &gSdHcSlotTemplate, sizeof (SD_PEIM_HC_SLOT));
+ Slot->Private = Private;
+ Slot->SdHcBase = MmioBase[Index];
+ CopyMem (&Slot->Capability, &Capability, sizeof (Capability));
+
+ Status = SdPeimIdentification (Slot);
+ if (EFI_ERROR (Status)) {
+ continue;
+ }
+
+ Csd = &Slot->Csd;
+ if (Csd->CsdStructure == 0) {
+ Slot->SectorAddressing = FALSE;
+ CSize = (Csd->CSizeHigh << 2 | Csd->CSizeLow) + 1;
+ CSizeMul = (1 << (Csd->CSizeMul + 2));
+ ReadBlLen = (1 << (Csd->ReadBlLen));
+ Capacity = MultU64x32 (MultU64x32 ((UINT64)CSize, CSizeMul), ReadBlLen);
+ } else {
+ Slot->SectorAddressing = TRUE;
+ Csd2 = (SD_CSD2*)(VOID*)Csd;
+ CSize = (Csd2->CSizeHigh << 16 | Csd2->CSizeLow) + 1;
+ Capacity = MultU64x32 ((UINT64)CSize, SIZE_512KB);
+ }
+
+ Slot->Media.LastBlock = DivU64x32 (Capacity, Slot->Media.BlockSize) - 1;
+
+ Private->TotalBlkIoDevices++;
+ Private->SlotNum++;
+ }
+
+ Controller++;
+ if (!EFI_ERROR (Status)) {
+ PeiServicesInstallPpi (&Private->BlkIoPpiList);
+ }
+ }
+
+ return EFI_SUCCESS;
+}
|