diff options
Diffstat (limited to 'EdkModulePkg/Bus/Pci/IdeBus/Dxe/ata.c')
| -rw-r--r-- | EdkModulePkg/Bus/Pci/IdeBus/Dxe/ata.c | 2624 |
1 files changed, 0 insertions, 2624 deletions
diff --git a/EdkModulePkg/Bus/Pci/IdeBus/Dxe/ata.c b/EdkModulePkg/Bus/Pci/IdeBus/Dxe/ata.c deleted file mode 100644 index 3c94c87d6f..0000000000 --- a/EdkModulePkg/Bus/Pci/IdeBus/Dxe/ata.c +++ /dev/null @@ -1,2624 +0,0 @@ -/** @file
- Copyright (c) 2006 - 2007 Intel Corporation. <BR>
- 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.
-
- @par Revision Reference:
- 2002-6: Add Atapi6 enhancement, support >120GB hard disk, including
- update - ATAIdentity() func
- update - AtaBlockIoReadBlocks() func
- update - AtaBlockIoWriteBlocks() func
- add - AtaAtapi6Identify() func
- add - AtaReadSectorsExt() func
- add - AtaWriteSectorsExt() func
- add - AtaPioDataInExt() func
- add - AtaPioDataOutExt() func
-
-**/
-
-#include "idebus.h"
-
-/**
- Sends out an ATA Identify Command to the specified device.
-
- This function is called by DiscoverIdeDevice() during its device
- identification. It sends out the ATA Identify Command to the
- specified device. Only ATA device responses to this command. If
- the command succeeds, it returns the Identify data structure which
- contains information about the device. This function extracts the
- information it needs to fill the IDE_BLK_IO_DEV data structure,
- including device type, media block size, media capacity, and etc.
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure,used
- to record all the information of the IDE device.
-
- @retval EFI_SUCCESS Identify ATA device successfully.
-
- @retval EFI_DEVICE_ERROR ATA Identify Device Command failed or
- device is not ATA device.
-
- @note
- parameter IdeDev will be updated in this function.
-
-**/
-EFI_STATUS
-ATAIdentify (
- IN IDE_BLK_IO_DEV *IdeDev
- )
-{
- EFI_STATUS Status;
- EFI_IDENTIFY_DATA *AtaIdentifyPointer;
- UINT32 Capacity;
- UINT8 DeviceSelect;
-
- //
- // AtaIdentifyPointer is used for accommodating returned IDENTIFY data of
- // the ATA Identify command
- //
- AtaIdentifyPointer = (EFI_IDENTIFY_DATA *) AllocateZeroPool (sizeof (EFI_IDENTIFY_DATA));
-
- //
- // use ATA PIO Data In protocol to send ATA Identify command
- // and receive data from device
- //
- DeviceSelect = (UINT8) ((IdeDev->Device) << 4);
- Status = AtaPioDataIn (
- IdeDev,
- (VOID *) AtaIdentifyPointer,
- sizeof (EFI_IDENTIFY_DATA),
- IDENTIFY_DRIVE_CMD,
- DeviceSelect,
- 0,
- 0,
- 0,
- 0
- );
- //
- // If ATA Identify command succeeds, then according to the received
- // IDENTIFY data,
- // identify the device type ( ATA or not ).
- // If ATA device, fill the information in IdeDev.
- // If not ATA device, return IDE_DEVICE_ERROR
- //
- if (!EFI_ERROR (Status)) {
-
- IdeDev->pIdData = AtaIdentifyPointer;
-
- //
- // Print ATA Module Name
- //
- PrintAtaModuleName (IdeDev);
-
- //
- // bit 15 of pAtaIdentify->config is used to identify whether device is
- // ATA device or ATAPI device.
- // if 0, means ATA device; if 1, means ATAPI device.
- //
- if ((AtaIdentifyPointer->AtaData.config & 0x8000) == 0x00) {
- //
- // Detect if support S.M.A.R.T. If yes, enable it as default
- //
- AtaSMARTSupport (IdeDev);
-
- //
- // Check whether this device needs 48-bit addressing (ATAPI-6 ata device)
- //
- Status = AtaAtapi6Identify (IdeDev);
- if (!EFI_ERROR (Status)) {
- //
- // It's a disk with >120GB capacity, initialized in AtaAtapi6Identify()
- //
- return EFI_SUCCESS;
- }
- //
- // This is a hard disk <= 120GB capacity, treat it as normal hard disk
- //
- IdeDev->Type = IdeHardDisk;
-
- //
- // Block Media Information:
- // Media->LogicalPartition , Media->WriteCaching will be filled
- // in the DiscoverIdeDevcie() function.
- //
- IdeDev->BlkIo.Media->IoAlign = 4;
- IdeDev->BlkIo.Media->MediaId = 1;
- IdeDev->BlkIo.Media->RemovableMedia = FALSE;
- IdeDev->BlkIo.Media->MediaPresent = TRUE;
- IdeDev->BlkIo.Media->ReadOnly = FALSE;
- IdeDev->BlkIo.Media->BlockSize = 0x200;
-
- //
- // Calculate device capacity
- //
- Capacity = ((UINT32)AtaIdentifyPointer->AtaData.user_addressable_sectors_hi << 16) |
- AtaIdentifyPointer->AtaData.user_addressable_sectors_lo ;
- IdeDev->BlkIo.Media->LastBlock = Capacity - 1;
-
- return EFI_SUCCESS;
-
- }
- }
-
- gBS->FreePool (AtaIdentifyPointer);
- //
- // Make sure the pIdData will not be freed again.
- //
- IdeDev->pIdData = NULL;
-
- return EFI_DEVICE_ERROR;
-}
-
-
-/**
- This function is called by ATAIdentify() to identity whether this disk
- supports ATA/ATAPI6 48bit addressing, ie support >120G capacity
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @retval EFI_SUCCESS The disk specified by IdeDev is a Atapi6 supported one
- and 48-bit addressing must be used
-
- @retval EFI_UNSUPPORTED The disk dosn't not support Atapi6 or it supports but
- the capacity is below 120G, 48bit addressing is not
- needed
-
- @note
- This function must be called after DEVICE_IDENTITY command has been
- successfully returned
-
-**/
-EFI_STATUS
-AtaAtapi6Identify (
- IN IDE_BLK_IO_DEV *IdeDev
- )
-{
- UINT8 Index;
- EFI_LBA TmpLba;
- EFI_LBA Capacity;
- EFI_IDENTIFY_DATA *Atapi6IdentifyStruct;
-
- if (IdeDev->pIdData == NULL) {
- return EFI_UNSUPPORTED;
- }
-
- Atapi6IdentifyStruct = IdeDev->pIdData;
-
- if ((Atapi6IdentifyStruct->AtapiData.cmd_set_support_83 & bit10) == 0) {
- //
- // The device dosn't support 48 bit addressing
- //
- return EFI_UNSUPPORTED;
- }
-
- //
- // 48 bit address feature set is supported, get maximum capacity
- //
- Capacity = Atapi6IdentifyStruct->AtapiData.max_user_lba_for_48bit_addr[0];
- for (Index = 1; Index < 4; Index++) {
- //
- // Lower byte goes first: word[100] is the lowest word, word[103] is highest
- //
- TmpLba = Atapi6IdentifyStruct->AtapiData.max_user_lba_for_48bit_addr[Index];
- Capacity |= LShiftU64 (TmpLba, 16 * Index);
- }
-
- if (Capacity > MAX_28BIT_ADDRESSING_CAPACITY) {
- //
- // Capacity exceeds 120GB. 48-bit addressing is really needed
- //
- IdeDev->Type = Ide48bitAddressingHardDisk;
-
- //
- // Fill block media information:Media->LogicalPartition ,
- // Media->WriteCaching will be filledin the DiscoverIdeDevcie() function.
- //
- IdeDev->BlkIo.Media->IoAlign = 4;
- IdeDev->BlkIo.Media->MediaId = 1;
- IdeDev->BlkIo.Media->RemovableMedia = FALSE;
- IdeDev->BlkIo.Media->MediaPresent = TRUE;
- IdeDev->BlkIo.Media->ReadOnly = FALSE;
- IdeDev->BlkIo.Media->BlockSize = 0x200;
- IdeDev->BlkIo.Media->LastBlock = Capacity - 1;
-
- return EFI_SUCCESS;
- }
-
- return EFI_UNSUPPORTED;
-}
-
-/**
- This function is called by ATAIdentify() or ATAPIIdentify()
- to print device's module name.
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
-**/
-VOID
-PrintAtaModuleName (
- IN IDE_BLK_IO_DEV *IdeDev
- )
-{
- if (IdeDev->pIdData == NULL) {
- return ;
- }
-
- SwapStringChars (IdeDev->ModelName, IdeDev->pIdData->AtaData.ModelName, 40);
- IdeDev->ModelName[40] = 0x00;
-}
-
-/**
- This function is used to send out ATA commands conforms to the
- PIO Data In Protocol.
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *Buffer
- buffer contained data transferred from device to host.
-
- @param[in] ByteCount
- data size in byte unit of the buffer.
-
- @param[in] AtaCommand
- value of the Command Register
-
- @param[in] Head
- value of the Head/Device Register
-
- @param[in] SectorCount
- value of the Sector Count Register
-
- @param[in] SectorNumber
- value of the Sector Number Register
-
- @param[in] CylinderLsb
- value of the low byte of the Cylinder Register
-
- @param[in] CylinderMsb
- value of the high byte of the Cylinder Register
-
- @retval EFI_SUCCESS send out the ATA command and device send required
- data successfully.
-
- @retval EFI_DEVICE_ERROR command sent failed.
-
-**/
-EFI_STATUS
-AtaPioDataIn (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *Buffer,
- IN UINT32 ByteCount,
- IN UINT8 AtaCommand,
- IN UINT8 Head,
- IN UINT8 SectorCount,
- IN UINT8 SectorNumber,
- IN UINT8 CylinderLsb,
- IN UINT8 CylinderMsb
- )
-{
- UINTN WordCount;
- UINTN Increment;
- UINT16 *Buffer16;
- EFI_STATUS Status;
-
- Status = WaitForBSYClear (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // e0:1110,0000-- bit7 and bit5 are reserved bits.
- // bit6 set means LBA mode
- //
- IDEWritePortB (
- IdeDev->PciIo,
- IdeDev->IoPort->Head,
- (UINT8) ((IdeDev->Device << 4) | 0xe0 | Head)
- );
-
- //
- // All ATAPI device's ATA commands can be issued regardless of the
- // state of the DRDY
- //
- if (IdeDev->Type == IdeHardDisk) {
-
- Status = DRDYReady (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
- }
- //
- // set all the command parameters
- // Before write to all the following registers, BSY and DRQ must be 0.
- //
- Status = DRQClear2 (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- if (AtaCommand == SET_FEATURES_CMD) {
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x03);
- }
-
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, SectorNumber);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, CylinderLsb);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, CylinderMsb);
-
- //
- // send command via Command Register
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, AtaCommand);
-
- Buffer16 = (UINT16 *) Buffer;
-
- //
- // According to PIO data in protocol, host can perform a series of reads to
- // the data register after each time device set DRQ ready;
- // The data size of "a series of read" is command specific.
- // For most ATA command, data size received from device will not exceed
- // 1 sector, hence the data size for "a series of read" can be the whole data
- // size of one command request.
- // For ATA command such as Read Sector command, the data size of one ATA
- // command request is often larger than 1 sector, according to the
- // Read Sector command, the data size of "a series of read" is exactly 1
- // sector.
- // Here for simplification reason, we specify the data size for
- // "a series of read" to 1 sector (256 words) if data size of one ATA command
- // request is larger than 256 words.
- //
- Increment = 256;
-
- //
- // used to record bytes of currently transfered data
- //
- WordCount = 0;
-
- while (WordCount < ByteCount / 2) {
- //
- // Poll DRQ bit set, data transfer can be performed only when DRQ is ready.
- //
- Status = DRQReady2 (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- Status = CheckErrorStatus (IdeDev);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Get the byte count for one series of read
- //
- if ((WordCount + Increment) > ByteCount / 2) {
- Increment = ByteCount / 2 - WordCount;
- }
-
- IDEReadPortWMultiple (
- IdeDev->PciIo,
- IdeDev->IoPort->Data,
- Increment,
- Buffer16
- );
-
- WordCount += Increment;
- Buffer16 += Increment;
-
- }
-
- DRQClear (IdeDev, ATATIMEOUT);
-
- return CheckErrorStatus (IdeDev);
-}
-
-/**
- This function is used to send out ATA commands conforms to the
- PIO Data Out Protocol.
-
- @param *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param *Buffer buffer contained data transferred from host to device.
- @param ByteCount data size in byte unit of the buffer.
- @param AtaCommand value of the Command Register
- @param Head value of the Head/Device Register
- @param SectorCount value of the Sector Count Register
- @param SectorNumber value of the Sector Number Register
- @param CylinderLsb value of the low byte of the Cylinder Register
- @param CylinderMsb value of the high byte of the Cylinder Register
-
- @retval EFI_SUCCESS send out the ATA command and device received required
- data successfully.
-
- @retval EFI_DEVICE_ERROR command sent failed.
-
-**/
-EFI_STATUS
-AtaPioDataOut (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *Buffer,
- IN UINT32 ByteCount,
- IN UINT8 AtaCommand,
- IN UINT8 Head,
- IN UINT8 SectorCount,
- IN UINT8 SectorNumber,
- IN UINT8 CylinderLsb,
- IN UINT8 CylinderMsb
- )
-{
- UINTN WordCount;
- UINTN Increment;
- UINT16 *Buffer16;
- EFI_STATUS Status;
-
- Status = WaitForBSYClear (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // select device via Head/Device register.
- // Before write Head/Device register, BSY and DRQ must be 0.
- //
- Status = DRQClear2 (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // e0:1110,0000-- bit7 and bit5 are reserved bits.
- // bit6 set means LBA mode
- //
- IDEWritePortB (
- IdeDev->PciIo,
- IdeDev->IoPort->Head,
- (UINT8) ((IdeDev->Device << 4) | 0xe0 | Head)
- );
-
- Status = DRDYReady (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // set all the command parameters
- // Before write to all the following registers, BSY and DRQ must be 0.
- //
- Status = DRQClear2 (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, SectorNumber);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, CylinderLsb);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, CylinderMsb);
-
- //
- // send command via Command Register
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, AtaCommand);
-
- Buffer16 = (UINT16 *) Buffer;
-
- //
- // According to PIO data out protocol, host can perform a series of
- // writes to the data register after each time device set DRQ ready;
- // The data size of "a series of read" is command specific.
- // For most ATA command, data size written to device will not exceed 1 sector,
- // hence the data size for "a series of write" can be the data size of one
- // command request.
- // For ATA command such as Write Sector command, the data size of one
- // ATA command request is often larger than 1 sector, according to the
- // Write Sector command, the data size of "a series of read" is exactly
- // 1 sector.
- // Here for simplification reason, we specify the data size for
- // "a series of write" to 1 sector (256 words) if data size of one ATA command
- // request is larger than 256 words.
- //
- Increment = 256;
- WordCount = 0;
-
- while (WordCount < ByteCount / 2) {
-
- //
- // DRQReady2-- read Alternate Status Register to determine the DRQ bit
- // data transfer can be performed only when DRQ is ready.
- //
- Status = DRQReady2 (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- Status = CheckErrorStatus (IdeDev);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Check the remaining byte count is less than 512 bytes
- //
- if ((WordCount + Increment) > ByteCount / 2) {
- Increment = ByteCount / 2 - WordCount;
- }
- //
- // perform a series of write without check DRQ ready
- //
-
- IDEWritePortWMultiple (
- IdeDev->PciIo,
- IdeDev->IoPort->Data,
- Increment,
- Buffer16
- );
- WordCount += Increment;
- Buffer16 += Increment;
-
- }
-
- DRQClear (IdeDev, ATATIMEOUT);
-
- return CheckErrorStatus (IdeDev);
-}
-
-/**
- This function is used to analyze the Status Register and print out
- some debug information and if there is ERR bit set in the Status
- Register, the Error Register's value is also be parsed and print out.
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @retval EFI_SUCCESS No err information in the Status Register.
- @retval EFI_DEVICE_ERROR Any err information in the Status Register.
-
-**/
-EFI_STATUS
-CheckErrorStatus (
- IN IDE_BLK_IO_DEV *IdeDev
- )
-{
- UINT8 StatusRegister;
- UINT8 ErrorRegister;
-
- StatusRegister = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Status);
-
- DEBUG_CODE_BEGIN ();
-
- if (StatusRegister & DWF) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Write Fault\n",
- StatusRegister)
- );
- }
-
- if (StatusRegister & CORR) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Corrected Data\n",
- StatusRegister)
- );
- }
-
- if (StatusRegister & ERR) {
- ErrorRegister = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Error);
-
- if (ErrorRegister & BBK_ERR) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Bad Block Detected\n",
- ErrorRegister)
- );
- }
-
- if (ErrorRegister & UNC_ERR) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Uncorrectable Data\n",
- ErrorRegister)
- );
- }
-
- if (ErrorRegister & MC_ERR) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Media Change\n",
- ErrorRegister)
- );
- }
-
- if (ErrorRegister & ABRT_ERR) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Abort\n",
- ErrorRegister)
- );
- }
-
- if (ErrorRegister & TK0NF_ERR) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Track 0 Not Found\n",
- ErrorRegister)
- );
- }
-
- if (ErrorRegister & AMNF_ERR) {
- DEBUG (
- (EFI_D_BLKIO,
- "CheckErrorStatus()-- %02x : Error : Address Mark Not Found\n",
- ErrorRegister)
- );
- }
- }
-
- DEBUG_CODE_END ();
-
- if ((StatusRegister & (ERR | DWF | CORR)) == 0) {
- return EFI_SUCCESS;
- }
-
- return EFI_DEVICE_ERROR;
-
-}
-
-/**
- This function is called by the AtaBlkIoReadBlocks() to perform
- reading from media in block unit.
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer
- A pointer to the destination buffer for the data.
-
- @param[in] Lba
- The starting logical block address to read from
- on the device media.
-
- @param[in] NumberOfBlocks
- The number of transfer data blocks.
-
- @return return status is fully dependent on the return status
- of AtaPioDataIn() function.
-
-**/
-EFI_STATUS
-AtaReadSectors (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA Lba,
- IN UINTN NumberOfBlocks
- )
-{
- EFI_STATUS Status;
- UINTN BlocksRemaining;
- UINT32 Lba32;
- UINT8 Lba0;
- UINT8 Lba1;
- UINT8 Lba2;
- UINT8 Lba3;
- UINT8 AtaCommand;
- UINT8 SectorCount8;
- UINT16 SectorCount;
- UINTN ByteCount;
- VOID *Buffer;
-
- Buffer = DataBuffer;
-
- //
- // Using ATA Read Sector(s) command (opcode=0x20) with PIO DATA IN protocol
- //
- AtaCommand = READ_SECTORS_CMD;
-
-
- BlocksRemaining = NumberOfBlocks;
-
- Lba32 = (UINT32) Lba;
-
- Status = EFI_SUCCESS;
-
- while (BlocksRemaining > 0) {
-
- //
- // in ATA-3 spec, LBA is in 28 bit width
- //
- Lba0 = (UINT8) Lba32;
- Lba1 = (UINT8) (Lba32 >> 8);
- Lba2 = (UINT8) (Lba32 >> 16);
- //
- // low 4 bit of Lba3 stands for LBA bit24~bit27.
- //
- Lba3 = (UINT8) ((Lba32 >> 24) & 0x0f);
-
- if (BlocksRemaining >= 0x100) {
-
- //
- // SectorCount8 is sent to Sector Count register, 0x00 means 256
- // sectors to be read
- //
- SectorCount8 = 0x00;
- //
- // SectorCount is used to record the number of sectors to be read
- //
- SectorCount = 256;
- } else {
-
- SectorCount8 = (UINT8) BlocksRemaining;
- SectorCount = (UINT16) BlocksRemaining;
- }
-
- //
- // ByteCount is the number of bytes that will be read
- //
- ByteCount = SectorCount * (IdeDev->BlkIo.Media->BlockSize);
-
- //
- // call AtaPioDataIn() to send Read Sector Command and receive data read
- //
- Status = AtaPioDataIn (
- IdeDev,
- Buffer,
- (UINT32) ByteCount,
- AtaCommand,
- Lba3,
- SectorCount8,
- Lba0,
- Lba1,
- Lba2
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Lba32 += SectorCount;
- Buffer = ((UINT8 *) Buffer + ByteCount);
- BlocksRemaining -= SectorCount;
- }
-
- return Status;
-}
-
-/**
- This function is called by the AtaBlkIoWriteBlocks() to perform
- writing onto media in block unit.
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure,used
- to record all the information of the IDE device.
-
- @param[in] *BufferData
- A pointer to the source buffer for the data.
-
- @param[in] Lba
- The starting logical block address to write onto
- the device media.
-
- @param[in] NumberOfBlocks
- The number of transfer data blocks.
-
- @return return status is fully dependent on the return status
- of AtaPioDataOut() function.
-
-**/
-EFI_STATUS
-AtaWriteSectors (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *BufferData,
- IN EFI_LBA Lba,
- IN UINTN NumberOfBlocks
- )
-{
- EFI_STATUS Status;
- UINTN BlocksRemaining;
- UINT32 Lba32;
- UINT8 Lba0;
- UINT8 Lba1;
- UINT8 Lba2;
- UINT8 Lba3;
- UINT8 AtaCommand;
- UINT8 SectorCount8;
- UINT16 SectorCount;
- UINTN ByteCount;
- VOID *Buffer;
-
- Buffer = BufferData;
-
- //
- // Using Write Sector(s) command (opcode=0x30) with PIO DATA OUT protocol
- //
- AtaCommand = WRITE_SECTORS_CMD;
-
- BlocksRemaining = NumberOfBlocks;
-
- Lba32 = (UINT32) Lba;
-
- Status = EFI_SUCCESS;
-
- while (BlocksRemaining > 0) {
-
- Lba0 = (UINT8) Lba32;
- Lba1 = (UINT8) (Lba32 >> 8);
- Lba2 = (UINT8) (Lba32 >> 16);
- Lba3 = (UINT8) ((Lba32 >> 24) & 0x0f);
-
- if (BlocksRemaining >= 0x100) {
-
- //
- // SectorCount8 is sent to Sector Count register, 0x00 means 256 sectors
- // to be written
- //
- SectorCount8 = 0x00;
- //
- // SectorCount is used to record the number of sectors to be written
- //
- SectorCount = 256;
- } else {
-
- SectorCount8 = (UINT8) BlocksRemaining;
- SectorCount = (UINT16) BlocksRemaining;
- }
-
- ByteCount = SectorCount * (IdeDev->BlkIo.Media->BlockSize);
-
- Status = AtaPioDataOut (
- IdeDev,
- Buffer,
- (UINT32) ByteCount,
- AtaCommand,
- Lba3,
- SectorCount8,
- Lba0,
- Lba1,
- Lba2
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Lba32 += SectorCount;
- Buffer = ((UINT8 *) Buffer + ByteCount);
- BlocksRemaining -= SectorCount;
- }
-
- return Status;
-}
-
-/**
- This function is used to implement the Soft Reset on the specified
- device. But, the ATA Soft Reset mechanism is so strong a reset method
- that it will force resetting on both devices connected to the
- same cable.
-
- It is called by IdeBlkIoReset(), a interface function of Block
- I/O protocol.
-
- This function can also be used by the ATAPI device to perform reset when
- ATAPI Reset command is failed.
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @retval EFI_SUCCESS Soft reset completes successfully.
- @retval EFI_DEVICE_ERROR Any step during the reset process is failed.
-
- @note
- The registers initial values after ATA soft reset are different
- to the ATA device and ATAPI device.
-
-**/
-EFI_STATUS
-AtaSoftReset (
- IN IDE_BLK_IO_DEV *IdeDev
- )
-{
-
- UINT8 DeviceControl;
-
- DeviceControl = 0;
- //
- // set SRST bit to initiate soft reset
- //
- DeviceControl |= SRST;
-
- //
- // disable Interrupt
- //
- DeviceControl |= bit1;
-
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, DeviceControl);
-
- //
- // SRST should assert for at least 5 us, we use 10 us for
- // better compatibility
- //
- gBS->Stall (10);
-
- //
- // Enable interrupt to support UDMA, and clear SRST bit
- //
- DeviceControl = 0;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, DeviceControl);
-
- //
- // Wait for at least 2 ms to check BSY status, we use 10 ms
- // for better compatibility
- //
- gBS->Stall(10000);
- //
- // slave device needs at most 31s to clear BSY
- //
- if (WaitForBSYClear (IdeDev, 31000) == EFI_TIMEOUT) {
- return EFI_DEVICE_ERROR;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- This function is the ATA implementation for ReadBlocks in the
- Block I/O Protocol interface.
-
- @param[in] *IdeBlkIoDevice
- Indicates the calling context.
-
- @param[in] MediaId
- The media id that the read request is for.
-
- @param[in] LBA
- The starting logical block address to read from
- on the device.
-
- @param[in] BufferSize
- The size of the Buffer in bytes. This 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 either having implicit
- or explicit ownership of the memory that data is read into.
-
- @retval EFI_SUCCESS Read Blocks successfully.
- @retval EFI_DEVICE_ERROR Read Blocks failed.
- @retval EFI_NO_MEDIA There is no media in the device.
- @retval EFI_MEDIA_CHANGE The MediaId is not for the current media.
-
- @retval EFI_BAD_BUFFER_SIZE
- The BufferSize parameter is not a multiple of the
- intrinsic block size of the device.
-
- @retval EFI_INVALID_PARAMETER
- The read request contains LBAs that are not valid,
- or the data buffer is not valid.
-
- @note
- If Read Block error because of device error, this function will call
- AtaSoftReset() function to reset device.
-
-**/
-EFI_STATUS
-AtaBlkIoReadBlocks (
- IN IDE_BLK_IO_DEV *IdeBlkIoDevice,
- IN UINT32 MediaId,
- IN EFI_LBA LBA,
- IN UINTN BufferSize,
- OUT VOID *Buffer
- )
-{
- EFI_BLOCK_IO_MEDIA *Media;
- UINTN BlockSize;
- UINTN NumberOfBlocks;
- EFI_STATUS Status;
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (BufferSize == 0) {
- return EFI_SUCCESS;
- }
-
- Status = EFI_SUCCESS;
-
- //
- // Get the intrinsic block size
- //
- Media = IdeBlkIoDevice->BlkIo.Media;
- BlockSize = Media->BlockSize;
-
- NumberOfBlocks = BufferSize / BlockSize;
-
- if (MediaId != Media->MediaId) {
- return EFI_MEDIA_CHANGED;
- }
-
- if (BufferSize % BlockSize != 0) {
- return EFI_BAD_BUFFER_SIZE;
- }
-
- if (!(Media->MediaPresent)) {
- return EFI_NO_MEDIA;
- }
-
- if (LBA > Media->LastBlock) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = EFI_SUCCESS;
- if (IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
- //
- // For ATA/ATAPI-6 device(capcity > 120GB), use ATA-6 read block mechanism
- //
- if (IdeBlkIoDevice->UdmaMode.Valid) {
- Status = AtaUdmaReadExt (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- } else {
- Status = AtaReadSectorsExt (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- }
- } else {
- //
- // For ATA-3 compatible device, use ATA-3 read block mechanism
- //
- if (IdeBlkIoDevice->UdmaMode.Valid) {
- Status = AtaUdmaRead (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- } else {
- Status = AtaReadSectors (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- }
- }
-
- if (EFI_ERROR (Status)) {
- AtaSoftReset (IdeBlkIoDevice);
- return EFI_DEVICE_ERROR;
- }
-
- return EFI_SUCCESS;
-
-}
-
-/**
- This function is the ATA implementation for WriteBlocks in the
- Block I/O Protocol interface.
-
- @param[in] *IdeBlkIoDevice
- Indicates the calling context.
-
- @param[in] MediaId
- The media id that the write request is for.
-
- @param[in] LBA
- The starting logical block address to write onto
- the device.
-
- @param[in] BufferSize
- The size of the Buffer in bytes. This must be a
- multiple of the intrinsic block size of the device.
-
- @param[out] *Buffer
- A pointer to the source buffer for the data.
- The caller is responsible for either having implicit
- or explicit ownership of the memory that data is
- written from.
-
- @retval EFI_SUCCESS Write Blocks successfully.
- @retval EFI_DEVICE_ERROR Write Blocks failed.
- @retval EFI_NO_MEDIA There is no media in the device.
- @retval EFI_MEDIA_CHANGE The MediaId is not for the current media.
-
- @retval EFI_BAD_BUFFER_SIZE
- The BufferSize parameter is not a multiple of the
- intrinsic block size of the device.
-
- @retval EFI_INVALID_PARAMETER
- The write request contains LBAs that are not valid,
- or the data buffer is not valid.
-
- @note
- If Write Block error because of device error, this function will call
- AtaSoftReset() function to reset device.
-
-**/
-EFI_STATUS
-AtaBlkIoWriteBlocks (
- IN IDE_BLK_IO_DEV *IdeBlkIoDevice,
- IN UINT32 MediaId,
- IN EFI_LBA LBA,
- IN UINTN BufferSize,
- OUT VOID *Buffer
- )
-{
-
- EFI_BLOCK_IO_MEDIA *Media;
- UINTN BlockSize;
- UINTN NumberOfBlocks;
- EFI_STATUS Status;
-
- if (Buffer == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (BufferSize == 0) {
- return EFI_SUCCESS;
- }
-
- Status = EFI_SUCCESS;
-
- //
- // Get the intrinsic block size
- //
- Media = IdeBlkIoDevice->BlkIo.Media;
- BlockSize = Media->BlockSize;
- NumberOfBlocks = BufferSize / BlockSize;
-
- if (MediaId != Media->MediaId) {
- return EFI_MEDIA_CHANGED;
- }
-
- if (BufferSize % BlockSize != 0) {
- return EFI_BAD_BUFFER_SIZE;
- }
-
- if (LBA > Media->LastBlock) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((LBA + NumberOfBlocks - 1) > Media->LastBlock) {
- return EFI_INVALID_PARAMETER;
- }
-
- if ((Media->IoAlign > 1) && (((UINTN) Buffer & (Media->IoAlign - 1)) != 0)) {
- return EFI_INVALID_PARAMETER;
- }
-
- Status = EFI_SUCCESS;
- if (IdeBlkIoDevice->Type == Ide48bitAddressingHardDisk) {
- //
- // For ATA/ATAPI-6 device(capcity > 120GB), use ATA-6 write block mechanism
- //
- if (IdeBlkIoDevice->UdmaMode.Valid) {
- Status = AtaUdmaWriteExt (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- } else {
- Status = AtaWriteSectorsExt (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- }
- } else {
- //
- // For ATA-3 compatible device, use ATA-3 write block mechanism
- //
- if (IdeBlkIoDevice->UdmaMode.Valid) {
- Status = AtaUdmaWrite (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- } else {
- Status = AtaWriteSectors (IdeBlkIoDevice, Buffer, LBA, NumberOfBlocks);
- }
- }
-
- if (EFI_ERROR (Status)) {
- AtaSoftReset (IdeBlkIoDevice);
- return EFI_DEVICE_ERROR;
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- This function is called by the AtaBlkIoReadBlocks() to perform
- reading from media in block unit. The function has been enhanced to
- support >120GB access and transfer at most 65536 blocks per command
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer A pointer to the destination buffer for the data.
- @param[in] StartLba The starting logical block address to read from
- on the device media.
- @param[in] NumberOfBlocks The number of transfer data blocks.
-
- @return return status is fully dependent on the return status
- of AtaPioDataInExt() function.
-
-**/
-EFI_STATUS
-AtaReadSectorsExt (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA StartLba,
- IN UINTN NumberOfBlocks
- )
-{
- EFI_STATUS Status;
- UINTN BlocksRemaining;
- EFI_LBA Lba64;
- UINT8 AtaCommand;
- UINT16 SectorCount;
- UINT32 ByteCount;
- VOID *Buffer;
-
- //
- // Using ATA "Read Sectors Ext" command(opcode=0x24) with PIO DATA IN protocol
- //
- AtaCommand = READ_SECTORS_EXT_CMD;
- Buffer = DataBuffer;
- BlocksRemaining = NumberOfBlocks;
- Lba64 = StartLba;
- Status = EFI_SUCCESS;
-
- while (BlocksRemaining > 0) {
-
- if (BlocksRemaining >= 0x10000) {
- //
- // SectorCount is used to record the number of sectors to be read
- // Max 65536 sectors can be transfered at a time.
- //
- SectorCount = 0xffff;
- } else {
- SectorCount = (UINT16) BlocksRemaining;
- }
-
- //
- // ByteCount is the number of bytes that will be read
- //
- ByteCount = SectorCount * (IdeDev->BlkIo.Media->BlockSize);
-
- //
- // call AtaPioDataInExt() to send Read Sector Command and receive data read
- //
- Status = AtaPioDataInExt (
- IdeDev,
- Buffer,
- ByteCount,
- AtaCommand,
- Lba64,
- SectorCount
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Lba64 += SectorCount;
- Buffer = ((UINT8 *) Buffer + ByteCount);
- BlocksRemaining -= SectorCount;
- }
-
- return Status;
-}
-
-/**
- This function is called by the AtaBlkIoWriteBlocks() to perform
- writing onto media in block unit. The function has been enhanced to
- support >120GB access and transfer at most 65536 blocks per command
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure,used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer
- A pointer to the source buffer for the data.
-
- @param[in] Lba
- The starting logical block address to write onto
- the device media.
-
- @param[in] NumberOfBlocks
- The number of transfer data blocks.
-
- @return status is fully dependent on the return status
- of AtaPioDataOutExt() function.
-
-**/
-EFI_STATUS
-AtaWriteSectorsExt (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA StartLba,
- IN UINTN NumberOfBlocks
- )
-{
- EFI_STATUS Status;
- EFI_LBA Lba64;
- UINTN BlocksRemaining;
- UINT8 AtaCommand;
- UINT16 SectorCount;
- UINT32 ByteCount;
- VOID *Buffer;
-
- //
- // Using ATA "Write Sectors Ext" cmd(opcode=0x24) with PIO DATA OUT protocol
- //
- AtaCommand = WRITE_SECTORS_EXT_CMD;
- Lba64 = StartLba;
- Buffer = DataBuffer;
- BlocksRemaining = NumberOfBlocks;
-
- Status = EFI_SUCCESS;
-
- while (BlocksRemaining > 0) {
-
- if (BlocksRemaining >= 0x10000) {
- //
- // SectorCount is used to record the number of sectors to be written.
- // Max 65536 sectors can be transfered at a time.
- //
- SectorCount = 0xffff;
- } else {
- SectorCount = (UINT16) BlocksRemaining;
- }
-
- //
- // ByteCount is the number of bytes that will be written
- //
- ByteCount = SectorCount * (IdeDev->BlkIo.Media->BlockSize);
-
- //
- // Call AtaPioDataOutExt() to send "Write Sectors Ext" Command
- //
- Status = AtaPioDataOutExt (
- IdeDev,
- Buffer,
- ByteCount,
- AtaCommand,
- Lba64,
- SectorCount
- );
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- Lba64 += SectorCount;
- Buffer = ((UINT8 *) Buffer + ByteCount);
- BlocksRemaining -= SectorCount;
- }
-
- return Status;
-}
-
-/**
- This function is used to send out ATA commands conforms to the
- PIO Data In Protocol, supporting ATA/ATAPI-6 standard
-
- Comparing with ATA-3 data in protocol, we have two differents here:<BR>
- 1. Do NOT wait for DRQ clear before sending command into IDE device.(the
- wait will frequently fail... cause writing function return error)
-
- 2. Do NOT wait for DRQ clear after all data readed.(the wait greatly
- slow down writing performance by 100 times!)
-
- @param[in] *IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in,out] *Buffer buffer contained data transferred from device to host.
- @param[in] ByteCount data size in byte unit of the buffer.
- @param[in] AtaCommand value of the Command Register
- @param[in] StartLba the start LBA of this transaction
- @param[in] SectorCount the count of sectors to be transfered
-
- @retval EFI_SUCCESS send out the ATA command and device send required
- data successfully.
-
- @retval EFI_DEVICE_ERROR command sent failed.
-
-**/
-EFI_STATUS
-AtaPioDataInExt (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN OUT VOID *Buffer,
- IN UINT32 ByteCount,
- IN UINT8 AtaCommand,
- IN EFI_LBA StartLba,
- IN UINT16 SectorCount
- )
-{
- UINT8 DevSel;
- UINT8 SectorCount8;
- UINT8 LbaLow;
- UINT8 LbaMid;
- UINT8 LbaHigh;
- UINTN WordCount;
- UINTN Increment;
- UINT16 *Buffer16;
- EFI_STATUS Status;
-
- Status = WaitForBSYClear (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Select device, set bit6 as 1 to indicate LBA mode is used
- //
- DevSel = (UINT8) (IdeDev->Device << 4);
- DevSel |= 0x40;
- IDEWritePortB (
- IdeDev->PciIo,
- IdeDev->IoPort->Head,
- DevSel
- );
-
- //
- // Wait for DRDY singnal asserting. ATAPI device needn't wait
- //
- if ( (IdeDev->Type == IdeHardDisk) ||
- (IdeDev->Type == Ide48bitAddressingHardDisk)) {
-
- Status = DRDYReady (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
- }
-
- //
- // Fill feature register if needed
- //
- if (AtaCommand == SET_FEATURES_CMD) {
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x03);
- }
-
- //
- // Fill the sector count register, which is a two-byte FIFO. Need write twice.
- //
- SectorCount8 = (UINT8) (SectorCount >> 8);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount8);
-
- SectorCount8 = (UINT8) SectorCount;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount8);
-
- //
- // Fill the start LBA registers, which are also two-byte FIFO
- //
- LbaLow = (UINT8) RShiftU64 (StartLba, 24);
- LbaMid = (UINT8) RShiftU64 (StartLba, 32);
- LbaHigh = (UINT8) RShiftU64 (StartLba, 40);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, LbaLow);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, LbaMid);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, LbaHigh);
-
- LbaLow = (UINT8) StartLba;
- LbaMid = (UINT8) RShiftU64 (StartLba, 8);
- LbaHigh = (UINT8) RShiftU64 (StartLba, 16);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, LbaLow);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, LbaMid);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, LbaHigh);
-
- //
- // Send command via Command Register, invoking the processing of this command
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, AtaCommand);
-
- Buffer16 = (UINT16 *) Buffer;
-
- //
- // According to PIO data in protocol, host can perform a series of reads to
- // the data register after each time device set DRQ ready;
- //
-
- //
- // 256 words
- //
- Increment = 256;
-
- //
- // used to record bytes of currently transfered data
- //
- WordCount = 0;
-
- while (WordCount < ByteCount / 2) {
- //
- // Poll DRQ bit set, data transfer can be performed only when DRQ is ready.
- //
- Status = DRQReady2 (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- Status = CheckErrorStatus (IdeDev);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Get the byte count for one series of read
- //
- if ((WordCount + Increment) > ByteCount / 2) {
- Increment = ByteCount / 2 - WordCount;
- }
-
- IDEReadPortWMultiple (
- IdeDev->PciIo,
- IdeDev->IoPort->Data,
- Increment,
- Buffer16
- );
-
- WordCount += Increment;
- Buffer16 += Increment;
-
- }
-
- return CheckErrorStatus (IdeDev);
-}
-
-/**
- This function is used to send out ATA commands conforms to the
- PIO Data Out Protocol, supporting ATA/ATAPI-6 standard
-
- Comparing with ATA-3 data out protocol, we have two differents here:<BR>
- 1. Do NOT wait for DRQ clear before sending command into IDE device.(the
- wait will frequently fail... cause writing function return error)
-
- 2. Do NOT wait for DRQ clear after all data readed.(the wait greatly
- slow down writing performance by 100 times!)
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *Buffer buffer contained data transferred from host to device.
- @param[in] ByteCount data size in byte unit of the buffer.
- @param[in] AtaCommand value of the Command Register
- @param[in] StartLba the start LBA of this transaction
- @param[in] SectorCount the count of sectors to be transfered
-
- @retval EFI_SUCCESS send out the ATA command and device receive required
- data successfully.
-
- @retval EFI_DEVICE_ERROR command sent failed.
-
-**/
-EFI_STATUS
-AtaPioDataOutExt (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *Buffer,
- IN UINT32 ByteCount,
- IN UINT8 AtaCommand,
- IN EFI_LBA StartLba,
- IN UINT16 SectorCount
- )
-{
- UINT8 DevSel;
- UINT8 SectorCount8;
- UINT8 LbaLow;
- UINT8 LbaMid;
- UINT8 LbaHigh;
- UINTN WordCount;
- UINTN Increment;
- UINT16 *Buffer16;
- EFI_STATUS Status;
-
- Status = WaitForBSYClear (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Select device. Set bit6 as 1 to indicate LBA mode is used
- //
- DevSel = (UINT8) (IdeDev->Device << 4);
- DevSel |= 0x40;
- IDEWritePortB (
- IdeDev->PciIo,
- IdeDev->IoPort->Head,
- DevSel
- );
-
- //
- // Wait for DRDY singnal asserting.
- //
- Status = DRDYReady (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Fill feature register if needed
- //
- if (AtaCommand == SET_FEATURES_CMD) {
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, 0x03);
- }
-
- //
- // Fill the sector count register, which is a two-byte FIFO. Need write twice.
- //
- SectorCount8 = (UINT8) (SectorCount >> 8);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount8);
-
- SectorCount8 = (UINT8) SectorCount;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount8);
-
- //
- // Fill the start LBA registers, which are also two-byte FIFO
- //
- LbaLow = (UINT8) RShiftU64 (StartLba, 24);
- LbaMid = (UINT8) RShiftU64 (StartLba, 32);
- LbaHigh = (UINT8) RShiftU64 (StartLba, 40);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, LbaLow);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, LbaMid);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, LbaHigh);
-
- LbaLow = (UINT8) StartLba;
- LbaMid = (UINT8) RShiftU64 (StartLba, 8);
- LbaHigh = (UINT8) RShiftU64 (StartLba, 16);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, LbaLow);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, LbaMid);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, LbaHigh);
-
- //
- // Send command via Command Register, invoking the processing of this command
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, AtaCommand);
-
- Buffer16 = (UINT16 *) Buffer;
-
- //
- // According to PIO Data Out protocol, host can perform a series of writes to
- // the data register after each time device set DRQ ready;
- //
- Increment = 256;
-
- //
- // used to record bytes of currently transfered data
- //
- WordCount = 0;
-
- while (WordCount < ByteCount / 2) {
- //
- // Poll DRQ bit set, data transfer can be performed only when DRQ is ready.
- //
- Status = DRQReady2 (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- Status = CheckErrorStatus (IdeDev);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Write data into device by one series of writing to data register
- //
- if ((WordCount + Increment) > ByteCount / 2) {
- Increment = ByteCount / 2 - WordCount;
- }
-
- IDEWritePortWMultiple (
- IdeDev->PciIo,
- IdeDev->IoPort->Data,
- Increment,
- Buffer16
- );
-
- WordCount += Increment;
- Buffer16 += Increment;
-
- }
- //
- // while
- //
-
- return CheckErrorStatus (IdeDev);
-}
-
-
-/**
- Enable SMART of the disk if supported
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure,used
- to record all the information of the IDE device.
-
-**/
-VOID
-AtaSMARTSupport (
- IN IDE_BLK_IO_DEV *IdeDev
- )
-{
- EFI_STATUS Status;
- BOOLEAN SMARTSupported;
- UINT8 Device;
- EFI_IDENTIFY_DATA *TmpAtaIdentifyPointer;
- UINT8 DeviceSelect;
- UINT8 LBAMid;
- UINT8 LBAHigh;
-
- //
- // Detect if the device supports S.M.A.R.T.
- //
- if ((IdeDev->pIdData->AtaData.command_set_supported_83 & 0xc000) != 0x4000) {
- //
- // Data in word 82 is not valid (bit15 shall be zero and bit14 shall be to one)
- //
- return ;
- } else {
- if ((IdeDev->pIdData->AtaData.command_set_supported_82 & 0x0001) != 0x0001) {
- //
- // S.M.A.R.T is not supported by the device
- //
- SMARTSupported = FALSE;
- } else {
- SMARTSupported = TRUE;
- }
- }
-
- if (!SMARTSupported) {
- //
- // Report nonsupport status code
- //
- REPORT_STATUS_CODE (
- EFI_ERROR_CODE | EFI_ERROR_MINOR,
- (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_NOTSUPPORTED)
- );
- } else {
- //
- // Enable this feature
- //
- REPORT_STATUS_CODE (
- EFI_PROGRESS_CODE,
- (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_ENABLE)
- );
-
- Device = (UINT8) ((IdeDev->Device << 4) | 0xe0);
- Status = AtaNonDataCommandIn (
- IdeDev,
- ATA_SMART_CMD,
- Device,
- ATA_SMART_ENABLE_OPERATION,
- 0,
- 0,
- ATA_CONSTANT_4F,
- ATA_CONSTANT_C2
- );
- //
- // Detect if this feature is enabled
- //
- TmpAtaIdentifyPointer = (EFI_IDENTIFY_DATA *) AllocateZeroPool (sizeof (EFI_IDENTIFY_DATA));
-
- DeviceSelect = (UINT8) ((IdeDev->Device) << 4);
- Status = AtaPioDataIn (
- IdeDev,
- (VOID *) TmpAtaIdentifyPointer,
- sizeof (EFI_IDENTIFY_DATA),
- IDENTIFY_DRIVE_CMD,
- DeviceSelect,
- 0,
- 0,
- 0,
- 0
- );
- if (EFI_ERROR (Status)) {
- gBS->FreePool (TmpAtaIdentifyPointer);
- return ;
- }
-
- //
- // Check if the feature is enabled
- //
- if ((TmpAtaIdentifyPointer->AtaData.command_set_feature_enb_85 & 0x0001) == 0x0001) {
- //
- // Read status data
- //
- AtaNonDataCommandIn (
- IdeDev,
- ATA_SMART_CMD,
- Device,
- ATA_SMART_RETURN_STATUS,
- 0,
- 0,
- ATA_CONSTANT_4F,
- ATA_CONSTANT_C2
- );
- LBAMid = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb);
- LBAHigh = IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb);
-
- if ((LBAMid == 0x4f) && (LBAHigh == 0xc2)) {
- //
- // The threshold exceeded condition is not detected by the device
- //
- REPORT_STATUS_CODE (
- EFI_PROGRESS_CODE,
- (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_UNDERTHRESHOLD)
- );
-
- } else if ((LBAMid == 0xf4) && (LBAHigh == 0x2c)) {
- //
- // The threshold exceeded condition is detected by the device
- //
- REPORT_STATUS_CODE (
- EFI_PROGRESS_CODE,
- (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_OVERTHRESHOLD)
- );
- }
-
- } else {
- //
- // Report disabled status code
- //
- REPORT_STATUS_CODE (
- EFI_ERROR_CODE | EFI_ERROR_MINOR,
- (EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_DISABLED)
- );
- }
-
- gBS->FreePool (TmpAtaIdentifyPointer);
- }
-
- return ;
-}
-
-/**
- Send ATA Ext command into device with NON_DATA protocol
-
- @param IdeDev Standard IDE device private data structure
- @param AtaCommand The ATA command to be sent
- @param Device The value in Device register
- @param Feature The value in Feature register
- @param SectorCount The value in SectorCount register
- @param LbaAddress The LBA address in 48-bit mode
-
- @retval EFI_SUCCESS Reading succeed
- @retval EFI_DEVICE_ERROR Error executing commands on this device
-
-**/
-EFI_STATUS
-AtaCommandIssueExt (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN UINT8 AtaCommand,
- IN UINT8 Device,
- IN UINT16 Feature,
- IN UINT16 SectorCount,
- IN EFI_LBA LbaAddress
- )
-{
- EFI_STATUS Status;
- UINT8 SectorCount8;
- UINT8 Feature8;
- UINT8 LbaLow;
- UINT8 LbaMid;
- UINT8 LbaHigh;
-
- Status = WaitForBSYClear (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Select device (bit4), set LBA mode(bit6) (use 0xe0 for compatibility)
- //
- IDEWritePortB (
- IdeDev->PciIo,
- IdeDev->IoPort->Head,
- (UINT8) ((IdeDev->Device << 4) | 0xe0)
- );
-
- //
- // ATA commands for ATA device must be issued when DRDY is set
- //
- Status = DRDYReady (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Pass parameter into device register block
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Head, Device);
-
- //
- // Fill the feature register, which is a two-byte FIFO. Need write twice.
- //
- Feature8 = (UINT8) (Feature >> 8);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, Feature8);
-
- Feature8 = (UINT8) Feature;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, Feature8);
-
- //
- // Fill the sector count register, which is a two-byte FIFO. Need write twice.
- //
- SectorCount8 = (UINT8) (SectorCount >> 8);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount8);
-
- SectorCount8 = (UINT8) SectorCount;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount8);
-
- //
- // Fill the start LBA registers, which are also two-byte FIFO
- //
- LbaLow = (UINT8) RShiftU64 (LbaAddress, 24);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, LbaLow);
- LbaLow = (UINT8) LbaAddress;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, LbaLow);
-
- LbaMid = (UINT8) RShiftU64 (LbaAddress, 32);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, LbaMid);
- LbaMid = (UINT8) RShiftU64 (LbaAddress, 8);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, LbaMid);
-
- LbaHigh = (UINT8) RShiftU64 (LbaAddress, 40);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, LbaHigh);
- LbaHigh = (UINT8) RShiftU64 (LbaAddress, 16);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, LbaHigh);
-
- //
- // Work around for Segate 160G disk writing
- //
- gBS->Stall (1800);
-
- //
- // Send command via Command Register
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, AtaCommand);
-
- //
- // Stall at least 400ns
- //
- gBS->Stall (100);
-
- return EFI_SUCCESS;
-}
-
-/**
- Send ATA Ext command into device with NON_DATA protocol
-
- @param IdeDev Standard IDE device private data structure
- @param AtaCommand The ATA command to be sent
- @param Device The value in Device register
- @param Feature The value in Feature register
- @param SectorCount The value in SectorCount register
- @param LbaAddress The LBA address in 48-bit mode
-
- @retval EFI_SUCCESS Reading succeed
- @retval EFI_DEVICE_ERROR Error executing commands on this device
-
-**/
-EFI_STATUS
-AtaCommandIssue (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN UINT8 AtaCommand,
- IN UINT8 Device,
- IN UINT16 Feature,
- IN UINT16 SectorCount,
- IN EFI_LBA LbaAddress
- )
-{
- EFI_STATUS Status;
- UINT8 SectorCount8;
- UINT8 Feature8;
- UINT8 Lba0;
- UINT8 Lba1;
- UINT8 Lba2;
- UINT8 Lba3;
-
- Status = WaitForBSYClear (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Select device (bit4), set LBA mode(bit6) (use 0xe0 for compatibility)
- //
- IDEWritePortB (
- IdeDev->PciIo,
- IdeDev->IoPort->Head,
- (UINT8) ((IdeDev->Device << 4) | 0xe0)
- );
-
- //
- // ATA commands for ATA device must be issued when DRDY is set
- //
- Status = DRDYReady (IdeDev, ATATIMEOUT);
- if (EFI_ERROR (Status)) {
- return EFI_DEVICE_ERROR;
- }
-
- Lba0 = (UINT8) LbaAddress;
- Lba1 = (UINT8) RShiftU64 (LbaAddress, 8);
- Lba2 = (UINT8) RShiftU64 (LbaAddress, 16);
- Lba3 = (UINT8) RShiftU64 (LbaAddress, 24);
- Device = (UINT8) (Device | Lba3);
-
- //
- // Pass parameter into device register block
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Head, Device);
-
- //
- // Fill the feature register, which is a two-byte FIFO. Need write twice.
- //
- Feature8 = (UINT8) Feature;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg1.Feature, Feature8);
-
- //
- // Fill the sector count register, which is a two-byte FIFO. Need write twice.
- //
- SectorCount8 = (UINT8) SectorCount;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorCount, SectorCount8);
-
- //
- // Fill the start LBA registers, which are also two-byte FIFO
- //
-
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->SectorNumber, Lba0);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderLsb, Lba1);
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->CylinderMsb, Lba2);
-
- //
- // Send command via Command Register
- //
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Reg.Command, AtaCommand);
-
- //
- // Stall at least 400ns
- //
- gBS->Stall (100);
-
- return EFI_SUCCESS;
-}
-
-/**
- This function is called by the AtaBlkIoReadBlocks() to perform
- reading from media in block unit. The function has been enhanced to
- support >120GB access and transfer at most 65536 blocks per command
-
- @param[in] *IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer A pointer to the destination buffer for the data.
-
- @param[in] StartLba The starting logical block address to read from
- on the device media.
-
- @param[in] NumberOfBlocks The number of transfer data blocks.
-
- @return The device status of UDMA operation. If the operation is
- successful, return EFI_SUCCESS.
-
- TODO: EFI_UNSUPPORTED - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
-**/
-EFI_STATUS
-AtaUdmaReadExt (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA StartLba,
- IN UINTN NumberOfBlocks
- )
-{
- return DoAtaUdma (IdeDev, DataBuffer, StartLba, NumberOfBlocks, AtaUdmaReadExtOp);
-}
-
-/**
- This function is called by the AtaBlkIoReadBlocks() to perform
- reading from media in block unit. The function has been enhanced to
- support >120GB access and transfer at most 65536 blocks per command
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer A pointer to the destination buffer for the data.
- @param[in] StartLba The starting logical block address to read from
- on the device media.
- @param[in] NumberOfBlocks The number of transfer data blocks.
-
- @return The device status of UDMA operation. If the operation is
- successful, return EFI_SUCCESS.
-
- TODO: EFI_UNSUPPORTED - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
-**/
-EFI_STATUS
-AtaUdmaRead (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA StartLba,
- IN UINTN NumberOfBlocks
- )
-{
- return DoAtaUdma (IdeDev, DataBuffer, StartLba, NumberOfBlocks, AtaUdmaReadOp);
-}
-
-/**
- This function is called by the AtaBlkIoWriteBlocks() to perform
- writing to media in block unit. The function has been enhanced to
- support >120GB access and transfer at most 65536 blocks per command
-
- @param[in] *IdeDev pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer A pointer to the source buffer for the data.
-
- @param[in] StartLba The starting logical block address to write to
- on the device media.
-
- @param[in] NumberOfBlocks The number of transfer data blocks.
-
- @return The device status of UDMA operation. If the operation is
- successful, return EFI_SUCCESS.
-
- TODO: EFI_UNSUPPORTED - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
-**/
-EFI_STATUS
-AtaUdmaWriteExt (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA StartLba,
- IN UINTN NumberOfBlocks
- )
-{
- return DoAtaUdma (IdeDev, DataBuffer, StartLba, NumberOfBlocks, AtaUdmaWriteExtOp);
-}
-
-/**
- This function is called by the AtaBlkIoWriteBlocks() to perform
- writing to media in block unit. The function has been enhanced to
- support >120GB access and transfer at most 65536 blocks per command
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer
- A pointer to the source buffer for the data.
-
- @param[in] StartLba
- The starting logical block address to write to
- on the device media.
-
- @param[in] NumberOfBlocks
- The number of transfer data blocks.
-
- @return The device status of UDMA operation. If the operation is
- successful, return EFI_SUCCESS.
-
- TODO: EFI_UNSUPPORTED - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
- TODO: EFI_DEVICE_ERROR - add return value to function comment
-**/
-EFI_STATUS
-AtaUdmaWrite (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA StartLba,
- IN UINTN NumberOfBlocks
- )
-{
- return DoAtaUdma (IdeDev, DataBuffer, StartLba, NumberOfBlocks, AtaUdmaWriteOp);
-}
-
-/**
- Perform an ATA Udma operation (Read, ReadExt, Write, WriteExt).
-
- @param[in] *IdeDev
- pointer pointing to IDE_BLK_IO_DEV data structure, used
- to record all the information of the IDE device.
-
- @param[in] *DataBuffer
- A pointer to the source buffer for the data.
-
- @param[in] StartLba
- The starting logical block address to write to
- on the device media.
-
- @param[in] NumberOfBlocks
- The number of transfer data blocks.
-
- @param[in] UdmaOp
- The perform operations could be AtaUdmaReadOp, AtaUdmaReadExOp,
- AtaUdmaWriteOp, AtaUdmaWriteExOp
-
- @return The device status of UDMA operation. If the operation is
- successful, return EFI_SUCCESS.
-
-**/
-EFI_STATUS
-DoAtaUdma (
- IN IDE_BLK_IO_DEV *IdeDev,
- IN VOID *DataBuffer,
- IN EFI_LBA StartLba,
- IN UINTN NumberOfBlocks,
- IN ATA_UDMA_OPERATION UdmaOp
- )
-{
- IDE_DMA_PRD *PrdAddr;
- IDE_DMA_PRD *UsedPrdAddr;
- IDE_DMA_PRD *TempPrdAddr;
- UINT8 RegisterValue;
- UINT8 Device;
- UINT64 IoPortForBmic;
- UINT64 IoPortForBmis;
- UINT64 IoPortForBmid;
- EFI_STATUS Status;
- UINTN PrdTableNum;
- UINTN ByteCount;
- UINTN ByteAvailable;
- UINT8 *PrdBuffer;
- UINTN RemainBlockNum;
- UINT8 DeviceControl;
- UINT32 Count;
- UINTN PageCount;
- VOID *Map;
- VOID *MemPage;
- EFI_PHYSICAL_ADDRESS DeviceAddress;
- UINTN MaxDmaCommandSectors;
- EFI_PCI_IO_PROTOCOL_OPERATION PciIoProtocolOp;
- UINT8 AtaCommand;
-
- switch (UdmaOp) {
- case AtaUdmaReadOp:
- MaxDmaCommandSectors = MAX_DMA_COMMAND_SECTORS;
- PciIoProtocolOp = EfiPciIoOperationBusMasterWrite;
- AtaCommand = READ_DMA_CMD;
- break;
- case AtaUdmaReadExtOp:
- MaxDmaCommandSectors = MAX_DMA_EXT_COMMAND_SECTORS;
- PciIoProtocolOp = EfiPciIoOperationBusMasterWrite;
- AtaCommand = READ_DMA_EXT_CMD;
- break;
- case AtaUdmaWriteOp:
- MaxDmaCommandSectors = MAX_DMA_COMMAND_SECTORS;
- PciIoProtocolOp = EfiPciIoOperationBusMasterRead;
- AtaCommand = WRITE_DMA_CMD;
- break;
- case AtaUdmaWriteExtOp:
- MaxDmaCommandSectors = MAX_DMA_EXT_COMMAND_SECTORS;
- PciIoProtocolOp = EfiPciIoOperationBusMasterRead;
- AtaCommand = WRITE_DMA_EXT_CMD;
- break;
- default:
- return EFI_UNSUPPORTED;
- break;
- }
-
- //
- // Channel and device differential
- //
- Device = (UINT8) ((IdeDev->Device << 4) | 0xe0);
-
- //
- // Enable interrupt to support UDMA and Select device
- //
- DeviceControl = 0;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, DeviceControl);
-
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Head, Device);
-
- if (IdePrimary == IdeDev->Channel) {
- IoPortForBmic = IdeDev->IoPort->BusMasterBaseAddr + BMICP_OFFSET;
- IoPortForBmis = IdeDev->IoPort->BusMasterBaseAddr + BMISP_OFFSET;
- IoPortForBmid = IdeDev->IoPort->BusMasterBaseAddr + BMIDP_OFFSET;
- } else {
- if (IdeSecondary == IdeDev->Channel) {
- IoPortForBmic = IdeDev->IoPort->BusMasterBaseAddr + BMICS_OFFSET;
- IoPortForBmis = IdeDev->IoPort->BusMasterBaseAddr + BMISS_OFFSET;
- IoPortForBmid = IdeDev->IoPort->BusMasterBaseAddr + BMIDS_OFFSET;
- } else {
- return EFI_UNSUPPORTED;
- }
- }
-
- RemainBlockNum = NumberOfBlocks;
- while (RemainBlockNum > 0) {
-
- if (RemainBlockNum >= MaxDmaCommandSectors) {
- //
- // SectorCount is used to record the number of sectors to be read
- // Max 65536 sectors can be transfered at a time.
- //
- NumberOfBlocks = MaxDmaCommandSectors;
- RemainBlockNum -= MaxDmaCommandSectors;
- } else {
- NumberOfBlocks = (UINT16) RemainBlockNum;
- RemainBlockNum = 0;
- }
-
- //
- // Calculate the number of PRD table to make sure the memory region
- // not cross 64K boundary
- //
- ByteCount = NumberOfBlocks * IdeDev->BlkIo.Media->BlockSize;
- PrdTableNum = ((ByteCount >> 16) + 1) + 1;
-
- //
- // Build PRD table
- //
- PageCount = EFI_SIZE_TO_PAGES (2 * PrdTableNum * sizeof (IDE_DMA_PRD));
- Status = IdeDev->PciIo->AllocateBuffer (
- IdeDev->PciIo,
- AllocateAnyPages,
- EfiBootServicesData,
- PageCount,
- &MemPage,
- 0
- );
- if (EFI_ERROR (Status)) {
- return EFI_OUT_OF_RESOURCES;
- }
- ZeroMem ((VOID *) ((UINTN) MemPage), EFI_PAGES_TO_SIZE (PageCount));
-
- PrdAddr = (IDE_DMA_PRD *) ((UINTN) MemPage);
- //
- // To make sure PRD is allocated in one 64K page
- //
- if (((UINTN) PrdAddr & 0x0FFFF) > (((UINTN) PrdAddr + PrdTableNum * sizeof (IDE_DMA_PRD) - 1) & 0x0FFFF)) {
- UsedPrdAddr = (IDE_DMA_PRD *) ((UINTN) ((UINT8 *) PrdAddr + 0x10000) & 0xFFFF0000);
- } else {
- if ((UINTN) PrdAddr & 0x03) {
- UsedPrdAddr = (IDE_DMA_PRD *) ((UINTN) ((UINT8 *) PrdAddr + 0x04) & 0xFFFFFFFC);
- } else {
- UsedPrdAddr = PrdAddr;
- }
- }
-
- //
- // Build the PRD table
- //
- Status = IdeDev->PciIo->Map (
- IdeDev->PciIo,
- PciIoProtocolOp,
- DataBuffer,
- &ByteCount,
- &DeviceAddress,
- &Map
- );
- if (EFI_ERROR (Status)) {
- IdeDev->PciIo->FreeBuffer (IdeDev->PciIo, PageCount, MemPage);
- return EFI_OUT_OF_RESOURCES;
- }
- PrdBuffer = (VOID *) ((UINTN) DeviceAddress);
- TempPrdAddr = UsedPrdAddr;
- while (TRUE) {
-
- ByteAvailable = 0x10000 - ((UINTN) PrdBuffer & 0xFFFF);
-
- if (ByteCount <= ByteAvailable) {
- TempPrdAddr->RegionBaseAddr = (UINT32) ((UINTN) PrdBuffer);
- TempPrdAddr->ByteCount = (UINT16) ByteCount;
- TempPrdAddr->EndOfTable = 0x8000;
- break;
- }
-
- TempPrdAddr->RegionBaseAddr = (UINT32) ((UINTN) PrdBuffer);
- TempPrdAddr->ByteCount = (UINT16) ByteAvailable;
-
- ByteCount -= ByteAvailable;
- PrdBuffer += ByteAvailable;
- TempPrdAddr++;
- }
-
- //
- // Set the base address to BMID register
- //
- IdeDev->PciIo->Io.Write (
- IdeDev->PciIo,
- EfiPciIoWidthUint32,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmid,
- 1,
- &UsedPrdAddr
- );
-
- //
- // Set BMIC register to identify the operation direction
- //
- IdeDev->PciIo->Io.Read (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
-
- if (UdmaOp == AtaUdmaReadExtOp || UdmaOp == AtaUdmaReadOp) {
- RegisterValue |= BMIC_nREAD;
- } else {
- RegisterValue &= ~((UINT8) BMIC_nREAD);
- }
-
- IdeDev->PciIo->Io.Write (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
-
- //
- // Read BMIS register and clear ERROR and INTR bit
- //
- IdeDev->PciIo->Io.Read (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmis,
- 1,
- &RegisterValue
- );
-
- RegisterValue |= (BMIS_INTERRUPT | BMIS_ERROR);
-
- IdeDev->PciIo->Io.Write (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmis,
- 1,
- &RegisterValue
- );
-
- if (UdmaOp == AtaUdmaWriteExtOp || UdmaOp == AtaUdmaReadExtOp) {
- Status = AtaCommandIssueExt (
- IdeDev,
- AtaCommand,
- Device,
- 0,
- (UINT16) NumberOfBlocks,
- StartLba
- );
- } else {
- Status = AtaCommandIssue (
- IdeDev,
- AtaCommand,
- Device,
- 0,
- (UINT16) NumberOfBlocks,
- StartLba
- );
- }
-
- if (EFI_ERROR (Status)) {
- IdeDev->PciIo->FreeBuffer (IdeDev->PciIo, PageCount, MemPage);
- IdeDev->PciIo->Unmap (IdeDev->PciIo, Map);
- return EFI_DEVICE_ERROR;
- }
-
- //
- // Set START bit of BMIC register
- //
- IdeDev->PciIo->Io.Read (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
-
- RegisterValue |= BMIC_START;
-
- IdeDev->PciIo->Io.Write (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
-
- //
- // Check the INTERRUPT and ERROR bit of BMIS
- // Max transfer number of sectors for one command is 65536(32Mbyte),
- // it will cost 1 second to transfer these data in UDMA mode 2(33.3MBps).
- // So set the variable Count to 2000, for about 2 second timeout time.
- //
- Count = 2000;
- while (TRUE) {
-
- IdeDev->PciIo->Io.Read (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmis,
- 1,
- &RegisterValue
- );
- if ((RegisterValue & (BMIS_INTERRUPT | BMIS_ERROR)) || (Count == 0)) {
- if ((RegisterValue & BMIS_ERROR) || (Count == 0)) {
- //
- // Clear START bit of BMIC register before return EFI_DEVICE_ERROR
- //
- IdeDev->PciIo->Io.Read (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
-
- RegisterValue &= ~((UINT8)BMIC_START);
-
- IdeDev->PciIo->Io.Write (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
- IdeDev->PciIo->FreeBuffer (IdeDev->PciIo, PageCount, MemPage);
- IdeDev->PciIo->Unmap (IdeDev->PciIo, Map);
- return EFI_DEVICE_ERROR;
- }
- break;
- }
-
- gBS->Stall (1000);
- Count --;
- }
-
- IdeDev->PciIo->FreeBuffer (IdeDev->PciIo, PageCount, MemPage);
- IdeDev->PciIo->Unmap (IdeDev->PciIo, Map);
- //
- // Read Status Register of IDE device to clear interrupt
- //
- RegisterValue = IDEReadPortB(IdeDev->PciIo,IdeDev->IoPort->Reg.Status);
- //
- // Clear START bit of BMIC register
- //
- IdeDev->PciIo->Io.Read (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
-
- RegisterValue &= ~((UINT8) BMIC_START);
-
- IdeDev->PciIo->Io.Write (
- IdeDev->PciIo,
- EfiPciIoWidthUint8,
- EFI_PCI_IO_PASS_THROUGH_BAR,
- IoPortForBmic,
- 1,
- &RegisterValue
- );
-
- if (RegisterValue & BMIS_ERROR) {
- return EFI_DEVICE_ERROR;
- }
-
- DataBuffer = (UINT8 *) DataBuffer + NumberOfBlocks * IdeDev->BlkIo.Media->BlockSize;
- StartLba += NumberOfBlocks;
- }
-
- //
- // Disable interrupt of Select device
- //
- IDEReadPortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl);
- DeviceControl |= IEN_L;
- IDEWritePortB (IdeDev->PciIo, IdeDev->IoPort->Alt.DeviceControl, DeviceControl);
-
- return EFI_SUCCESS;
-}
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