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qemu / edk2 / refs/heads/master / . / MdeModulePkg / Bus / Ata / AtaAtapiPassThru / AhciMode.c
blob: c21872b4fa363cd39a5a86ad0fef3901cf7fc042 [file] [log] [blame]
/** @file
The file for AHCI mode of ATA host controller.
Copyright (c) 2010 - 2020, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "AtaAtapiPassThru.h"
/**
Read AHCI Operation register.
@param PciIo The PCI IO protocol instance.
@param Offset The operation register offset.
@return The register content read.
**/
UINT32
EFIAPI
AhciReadReg (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT32 Offset
)
{
UINT32 Data;
ASSERT (PciIo != NULL);
Data = 0;
PciIo->Mem.Read (
PciIo,
EfiPciIoWidthUint32,
EFI_AHCI_BAR_INDEX,
(UINT64)Offset,
1,
&Data
);
return Data;
}
/**
Write AHCI Operation register.
@param PciIo The PCI IO protocol instance.
@param Offset The operation register offset.
@param Data The data used to write down.
**/
VOID
EFIAPI
AhciWriteReg (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT32 Offset,
IN UINT32 Data
)
{
ASSERT (PciIo != NULL);
PciIo->Mem.Write (
PciIo,
EfiPciIoWidthUint32,
EFI_AHCI_BAR_INDEX,
(UINT64)Offset,
1,
&Data
);
return;
}
/**
Do AND operation with the value of AHCI Operation register.
@param PciIo The PCI IO protocol instance.
@param Offset The operation register offset.
@param AndData The data used to do AND operation.
**/
VOID
EFIAPI
AhciAndReg (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT32 Offset,
IN UINT32 AndData
)
{
UINT32 Data;
ASSERT (PciIo != NULL);
Data = AhciReadReg (PciIo, Offset);
Data &= AndData;
AhciWriteReg (PciIo, Offset, Data);
}
/**
Do OR operation with the value of AHCI Operation register.
@param PciIo The PCI IO protocol instance.
@param Offset The operation register offset.
@param OrData The data used to do OR operation.
**/
VOID
EFIAPI
AhciOrReg (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT32 Offset,
IN UINT32 OrData
)
{
UINT32 Data;
ASSERT (PciIo != NULL);
Data = AhciReadReg (PciIo, Offset);
Data |= OrData;
AhciWriteReg (PciIo, Offset, Data);
}
/**
Wait for the value of the specified MMIO register set to the test value.
@param PciIo The PCI IO protocol instance.
@param Offset The MMIO address to test.
@param MaskValue The mask value of memory.
@param TestValue The test value of memory.
@param Timeout The time out value for wait memory set, uses 100ns as a unit.
@retval EFI_TIMEOUT The MMIO setting is time out.
@retval EFI_SUCCESS The MMIO is correct set.
**/
EFI_STATUS
EFIAPI
AhciWaitMmioSet (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINTN Offset,
IN UINT32 MaskValue,
IN UINT32 TestValue,
IN UINT64 Timeout
)
{
UINT32 Value;
UINT64 Delay;
BOOLEAN InfiniteWait;
if (Timeout == 0) {
InfiniteWait = TRUE;
} else {
InfiniteWait = FALSE;
}
Delay = DivU64x32 (Timeout, 1000) + 1;
do {
//
// Access PCI MMIO space to see if the value is the tested one.
//
Value = AhciReadReg (PciIo, (UINT32)Offset) & MaskValue;
if (Value == TestValue) {
return EFI_SUCCESS;
}
//
// Stall for 100 microseconds.
//
MicroSecondDelay (100);
Delay--;
} while (InfiniteWait || (Delay > 0));
return EFI_TIMEOUT;
}
/**
Wait for the value of the specified system memory set to the test value.
@param Address The system memory address to test.
@param MaskValue The mask value of memory.
@param TestValue The test value of memory.
@param Timeout The time out value for wait memory set, uses 100ns as a unit.
@retval EFI_TIMEOUT The system memory setting is time out.
@retval EFI_SUCCESS The system memory is correct set.
**/
EFI_STATUS
EFIAPI
AhciWaitMemSet (
IN EFI_PHYSICAL_ADDRESS Address,
IN UINT32 MaskValue,
IN UINT32 TestValue,
IN UINT64 Timeout
)
{
UINT32 Value;
UINT64 Delay;
BOOLEAN InfiniteWait;
if (Timeout == 0) {
InfiniteWait = TRUE;
} else {
InfiniteWait = FALSE;
}
Delay = DivU64x32 (Timeout, 1000) + 1;
do {
//
// Access system memory to see if the value is the tested one.
//
// The system memory pointed by Address will be updated by the
// SATA Host Controller, "volatile" is introduced to prevent
// compiler from optimizing the access to the memory address
// to only read once.
//
Value = *(volatile UINT32 *)(UINTN)Address;
Value &= MaskValue;
if (Value == TestValue) {
return EFI_SUCCESS;
}
//
// Stall for 100 microseconds.
//
MicroSecondDelay (100);
Delay--;
} while (InfiniteWait || (Delay > 0));
return EFI_TIMEOUT;
}
/**
Check the memory status to the test value.
@param[in] Address The memory address to test.
@param[in] MaskValue The mask value of memory.
@param[in] TestValue The test value of memory.
@retval EFI_NOT_READY The memory is not set.
@retval EFI_SUCCESS The memory is correct set.
**/
EFI_STATUS
EFIAPI
AhciCheckMemSet (
IN UINTN Address,
IN UINT32 MaskValue,
IN UINT32 TestValue
)
{
UINT32 Value;
Value = *(volatile UINT32 *)Address;
Value &= MaskValue;
if (Value == TestValue) {
return EFI_SUCCESS;
}
return EFI_NOT_READY;
}
/**
Clear the port interrupt and error status. It will also clear
HBA interrupt status.
@param PciIo The PCI IO protocol instance.
@param Port The number of port.
**/
VOID
EFIAPI
AhciClearPortStatus (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port
)
{
UINT32 Offset;
//
// Clear any error status
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SERR;
AhciWriteReg (PciIo, Offset, AhciReadReg (PciIo, Offset));
//
// Clear any port interrupt status
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_IS;
AhciWriteReg (PciIo, Offset, AhciReadReg (PciIo, Offset));
//
// Clear any HBA interrupt status
//
AhciWriteReg (PciIo, EFI_AHCI_IS_OFFSET, AhciReadReg (PciIo, EFI_AHCI_IS_OFFSET));
}
/**
This function is used to dump the Status Registers and if there is ERR bit set
in the Status Register, the Error Register's value is also be dumped.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param AtaStatusBlock A pointer to EFI_ATA_STATUS_BLOCK data structure.
**/
VOID
EFIAPI
AhciDumpPortStatus (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock
)
{
UINTN Offset;
UINT32 Data;
UINTN FisBaseAddr;
EFI_STATUS Status;
ASSERT (PciIo != NULL);
if (AtaStatusBlock != NULL) {
ZeroMem (AtaStatusBlock, sizeof (EFI_ATA_STATUS_BLOCK));
FisBaseAddr = (UINTN)AhciRegisters->AhciRFis + Port * sizeof (EFI_AHCI_RECEIVED_FIS);
Offset = FisBaseAddr + EFI_AHCI_D2H_FIS_OFFSET;
Status = AhciCheckMemSet (Offset, EFI_AHCI_FIS_TYPE_MASK, EFI_AHCI_FIS_REGISTER_D2H);
if (!EFI_ERROR (Status)) {
//
// If D2H FIS is received, update StatusBlock with its content.
//
CopyMem (AtaStatusBlock, (UINT8 *)Offset, sizeof (EFI_ATA_STATUS_BLOCK));
} else {
//
// If D2H FIS is not received, only update Status & Error field through PxTFD
// as there is no other way to get the content of the Shadow Register Block.
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_TFD;
Data = AhciReadReg (PciIo, (UINT32)Offset);
AtaStatusBlock->AtaStatus = (UINT8)Data;
if ((AtaStatusBlock->AtaStatus & BIT0) != 0) {
AtaStatusBlock->AtaError = (UINT8)(Data >> 8);
}
}
}
}
/**
Enable the FIS running for giving port.
@param PciIo The PCI IO protocol instance.
@param Port The number of port.
@param Timeout The timeout value of enabling FIS, uses 100ns as a unit.
@retval EFI_DEVICE_ERROR The FIS enable setting fails.
@retval EFI_TIMEOUT The FIS enable setting is time out.
@retval EFI_SUCCESS The FIS enable successfully.
**/
EFI_STATUS
EFIAPI
AhciEnableFisReceive (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port,
IN UINT64 Timeout
)
{
UINT32 Offset;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_CMD_FRE);
return EFI_SUCCESS;
}
/**
Disable the FIS running for giving port.
@param PciIo The PCI IO protocol instance.
@param Port The number of port.
@param Timeout The timeout value of disabling FIS, uses 100ns as a unit.
@retval EFI_DEVICE_ERROR The FIS disable setting fails.
@retval EFI_TIMEOUT The FIS disable setting is time out.
@retval EFI_UNSUPPORTED The port is in running state.
@retval EFI_SUCCESS The FIS disable successfully.
**/
EFI_STATUS
EFIAPI
AhciDisableFisReceive (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port,
IN UINT64 Timeout
)
{
UINT32 Offset;
UINT32 Data;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
Data = AhciReadReg (PciIo, Offset);
//
// Before disabling Fis receive, the DMA engine of the port should NOT be in running status.
//
if ((Data & (EFI_AHCI_PORT_CMD_ST | EFI_AHCI_PORT_CMD_CR)) != 0) {
return EFI_UNSUPPORTED;
}
//
// Check if the Fis receive DMA engine for the port is running.
//
if ((Data & EFI_AHCI_PORT_CMD_FR) != EFI_AHCI_PORT_CMD_FR) {
return EFI_SUCCESS;
}
AhciAndReg (PciIo, Offset, (UINT32) ~(EFI_AHCI_PORT_CMD_FRE));
return AhciWaitMmioSet (
PciIo,
Offset,
EFI_AHCI_PORT_CMD_FR,
0,
Timeout
);
}
/**
Build the command list, command table and prepare the fis receiver.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The timeout value of stop.
@param CommandFis The control fis will be used for the transfer.
@param CommandList The command list will be used for the transfer.
@param AtapiCommand The atapi command will be used for the transfer.
@param AtapiCommandLength The length of the atapi command.
@param CommandSlotNumber The command slot will be used for the transfer.
@param DataPhysicalAddr The pointer to the data buffer pci bus master address.
@param DataLength The data count to be transferred.
**/
VOID
EFIAPI
AhciBuildCommand (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN EFI_AHCI_COMMAND_FIS *CommandFis,
IN EFI_AHCI_COMMAND_LIST *CommandList,
IN EFI_AHCI_ATAPI_COMMAND *AtapiCommand OPTIONAL,
IN UINT8 AtapiCommandLength,
IN UINT8 CommandSlotNumber,
IN OUT VOID *DataPhysicalAddr,
IN UINT32 DataLength
)
{
UINT64 BaseAddr;
UINT32 PrdtNumber;
UINT32 PrdtIndex;
UINTN RemainedData;
UINTN MemAddr;
DATA_64 Data64;
UINT32 Offset;
//
// Filling the PRDT
//
PrdtNumber = (UINT32)DivU64x32 (((UINT64)DataLength + EFI_AHCI_MAX_DATA_PER_PRDT - 1), EFI_AHCI_MAX_DATA_PER_PRDT);
//
// According to AHCI 1.3 spec, a PRDT entry can point to a maximum 4MB data block.
// It also limits that the maximum amount of the PRDT entry in the command table
// is 65535.
//
ASSERT (PrdtNumber <= 65535);
Data64.Uint64 = (UINTN)(AhciRegisters->AhciRFis) + sizeof (EFI_AHCI_RECEIVED_FIS) * Port;
BaseAddr = Data64.Uint64;
ZeroMem ((VOID *)((UINTN)BaseAddr), sizeof (EFI_AHCI_RECEIVED_FIS));
ZeroMem (AhciRegisters->AhciCommandTable, sizeof (EFI_AHCI_COMMAND_TABLE));
CommandFis->AhciCFisPmNum = PortMultiplier;
CopyMem (&AhciRegisters->AhciCommandTable->CommandFis, CommandFis, sizeof (EFI_AHCI_COMMAND_FIS));
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
if (AtapiCommand != NULL) {
CopyMem (
&AhciRegisters->AhciCommandTable->AtapiCmd,
AtapiCommand,
AtapiCommandLength
);
CommandList->AhciCmdA = 1;
CommandList->AhciCmdP = 1;
AhciOrReg (PciIo, Offset, (EFI_AHCI_PORT_CMD_DLAE | EFI_AHCI_PORT_CMD_ATAPI));
} else {
AhciAndReg (PciIo, Offset, (UINT32) ~(EFI_AHCI_PORT_CMD_DLAE | EFI_AHCI_PORT_CMD_ATAPI));
}
RemainedData = (UINTN)DataLength;
MemAddr = (UINTN)DataPhysicalAddr;
CommandList->AhciCmdPrdtl = PrdtNumber;
for (PrdtIndex = 0; PrdtIndex < PrdtNumber; PrdtIndex++) {
if (RemainedData < EFI_AHCI_MAX_DATA_PER_PRDT) {
AhciRegisters->AhciCommandTable->PrdtTable[PrdtIndex].AhciPrdtDbc = (UINT32)RemainedData - 1;
} else {
AhciRegisters->AhciCommandTable->PrdtTable[PrdtIndex].AhciPrdtDbc = EFI_AHCI_MAX_DATA_PER_PRDT - 1;
}
Data64.Uint64 = (UINT64)MemAddr;
AhciRegisters->AhciCommandTable->PrdtTable[PrdtIndex].AhciPrdtDba = Data64.Uint32.Lower32;
AhciRegisters->AhciCommandTable->PrdtTable[PrdtIndex].AhciPrdtDbau = Data64.Uint32.Upper32;
RemainedData -= EFI_AHCI_MAX_DATA_PER_PRDT;
MemAddr += EFI_AHCI_MAX_DATA_PER_PRDT;
}
//
// Set the last PRDT to Interrupt On Complete
//
if (PrdtNumber > 0) {
AhciRegisters->AhciCommandTable->PrdtTable[PrdtNumber - 1].AhciPrdtIoc = 1;
}
CopyMem (
(VOID *)((UINTN)AhciRegisters->AhciCmdList + (UINTN)CommandSlotNumber * sizeof (EFI_AHCI_COMMAND_LIST)),
CommandList,
sizeof (EFI_AHCI_COMMAND_LIST)
);
Data64.Uint64 = (UINT64)(UINTN)AhciRegisters->AhciCommandTablePciAddr;
AhciRegisters->AhciCmdList[CommandSlotNumber].AhciCmdCtba = Data64.Uint32.Lower32;
AhciRegisters->AhciCmdList[CommandSlotNumber].AhciCmdCtbau = Data64.Uint32.Upper32;
AhciRegisters->AhciCmdList[CommandSlotNumber].AhciCmdPmp = PortMultiplier;
}
/**
Build a command FIS.
@param CmdFis A pointer to the EFI_AHCI_COMMAND_FIS data structure.
@param AtaCommandBlock A pointer to the AhciBuildCommandFis data structure.
**/
VOID
EFIAPI
AhciBuildCommandFis (
IN OUT EFI_AHCI_COMMAND_FIS *CmdFis,
IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock
)
{
ZeroMem (CmdFis, sizeof (EFI_AHCI_COMMAND_FIS));
CmdFis->AhciCFisType = EFI_AHCI_FIS_REGISTER_H2D;
//
// Indicator it's a command
//
CmdFis->AhciCFisCmdInd = 0x1;
CmdFis->AhciCFisCmd = AtaCommandBlock->AtaCommand;
CmdFis->AhciCFisFeature = AtaCommandBlock->AtaFeatures;
CmdFis->AhciCFisFeatureExp = AtaCommandBlock->AtaFeaturesExp;
CmdFis->AhciCFisSecNum = AtaCommandBlock->AtaSectorNumber;
CmdFis->AhciCFisSecNumExp = AtaCommandBlock->AtaSectorNumberExp;
CmdFis->AhciCFisClyLow = AtaCommandBlock->AtaCylinderLow;
CmdFis->AhciCFisClyLowExp = AtaCommandBlock->AtaCylinderLowExp;
CmdFis->AhciCFisClyHigh = AtaCommandBlock->AtaCylinderHigh;
CmdFis->AhciCFisClyHighExp = AtaCommandBlock->AtaCylinderHighExp;
CmdFis->AhciCFisSecCount = AtaCommandBlock->AtaSectorCount;
CmdFis->AhciCFisSecCountExp = AtaCommandBlock->AtaSectorCountExp;
CmdFis->AhciCFisDevHead = (UINT8)(AtaCommandBlock->AtaDeviceHead | 0xE0);
}
/**
Wait until SATA device reports it is ready for operation.
@param[in] PciIo Pointer to AHCI controller PciIo.
@param[in] Port SATA port index on which to reset.
@retval EFI_SUCCESS Device ready for operation.
@retval EFI_TIMEOUT Device failed to get ready within required period.
**/
EFI_STATUS
AhciWaitDeviceReady (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port
)
{
UINT32 PhyDetectDelay;
UINT32 Data;
UINT32 Offset;
//
// According to SATA1.0a spec section 5.2, we need to wait for PxTFD.BSY and PxTFD.DRQ
// and PxTFD.ERR to be zero. The maximum wait time is configurable and determined by
// PCD PcdSataDeviceReadyTimeout.
//
PhyDetectDelay = PcdGet8 (PcdSataDeviceReadyTimeout) * 1000;
do {
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SERR;
if (AhciReadReg (PciIo, Offset) != 0) {
AhciWriteReg (PciIo, Offset, AhciReadReg (PciIo, Offset));
}
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_TFD;
Data = AhciReadReg (PciIo, Offset) & EFI_AHCI_PORT_TFD_MASK;
if (Data == 0) {
break;
}
MicroSecondDelay (1000);
PhyDetectDelay--;
} while (PhyDetectDelay > 0);
if (PhyDetectDelay == 0) {
DEBUG ((DEBUG_ERROR, "Port %d Device not ready (TFD=0x%X)\n", Port, Data));
return EFI_TIMEOUT;
} else {
return EFI_SUCCESS;
}
}
/**
Reset the SATA port. Algorithm follows AHCI spec 1.3.1 section 10.4.2
@param[in] PciIo Pointer to AHCI controller PciIo.
@param[in] Port SATA port index on which to reset.
@retval EFI_SUCCESS Port reset.
@retval Others Failed to reset the port.
**/
EFI_STATUS
AhciResetPort (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port
)
{
UINT32 Offset;
EFI_STATUS Status;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SCTL;
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_SCTL_DET_INIT);
//
// SW is required to keep DET set to 0x1 at least for 1 milisecond to ensure that
// at least one COMRESET signal is sent.
//
MicroSecondDelay (1000);
AhciAndReg (PciIo, Offset, ~(UINT32)EFI_AHCI_PORT_SSTS_DET_MASK);
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SSTS;
Status = AhciWaitMmioSet (PciIo, Offset, EFI_AHCI_PORT_SSTS_DET_MASK, EFI_AHCI_PORT_SSTS_DET_PCE, ATA_ATAPI_TIMEOUT);
if (EFI_ERROR (Status)) {
return Status;
}
return AhciWaitDeviceReady (PciIo, Port);
}
/**
Recovers the SATA port from error condition.
This function implements algorithm described in
AHCI spec 1.3.1 section 6.2.2
@param[in] PciIo Pointer to AHCI controller PciIo.
@param[in] Port SATA port index on which to check.
@retval EFI_SUCCESS Port recovered.
@retval Others Failed to recover port.
**/
EFI_STATUS
AhciRecoverPortError (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port
)
{
UINT32 Offset;
UINT32 PortInterrupt;
UINT32 PortTfd;
EFI_STATUS Status;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_IS;
PortInterrupt = AhciReadReg (PciIo, Offset);
if ((PortInterrupt & EFI_AHCI_PORT_IS_FATAL_ERROR_MASK) == 0) {
//
// No fatal error detected. Exit with success as port should still be operational.
// No need to clear IS as it will be cleared when the next command starts.
//
return EFI_SUCCESS;
}
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
AhciAndReg (PciIo, Offset, ~(UINT32)EFI_AHCI_PORT_CMD_ST);
Status = AhciWaitMmioSet (PciIo, Offset, EFI_AHCI_PORT_CMD_CR, 0, ATA_ATAPI_TIMEOUT);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Ahci port %d is in hung state, aborting recovery\n", Port));
return Status;
}
//
// If TFD.BSY or TFD.DRQ is still set it means that drive is hung and software has
// to reset it before sending any additional commands.
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_TFD;
PortTfd = AhciReadReg (PciIo, Offset);
if ((PortTfd & (EFI_AHCI_PORT_TFD_BSY | EFI_AHCI_PORT_TFD_DRQ)) != 0) {
Status = AhciResetPort (PciIo, Port);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed to reset the port %d\n", Port));
return EFI_DEVICE_ERROR;
}
}
return EFI_SUCCESS;
}
/**
This function will check if the failed command should be retired. Only error
conditions which are a result of transient conditions on a link(either to system or to device).
@param[in] PciIo Pointer to AHCI controller PciIo.
@param[in] Port SATA port index on which to check.
@retval TRUE Command failure was caused by transient condition and should be retried
@retval FALSE Command should not be retried
**/
BOOLEAN
AhciShouldCmdBeRetried (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port
)
{
UINT32 Offset;
UINT32 PortInterrupt;
UINT32 Serr;
UINT32 Tfd;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_IS;
PortInterrupt = AhciReadReg (PciIo, Offset);
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SERR;
Serr = AhciReadReg (PciIo, Offset);
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_TFD;
Tfd = AhciReadReg (PciIo, Offset);
//
// This can occur if there was a CRC error on a path from system memory to
// host controller.
//
if (PortInterrupt & EFI_AHCI_PORT_IS_HBDS) {
return TRUE;
//
// This can occur if there was a CRC error detected by host during communication
// with the device
//
} else if ((PortInterrupt & (EFI_AHCI_PORT_IS_IFS | EFI_AHCI_PORT_IS_INFS)) &&
(Serr & EFI_AHCI_PORT_SERR_CRCE))
{
return TRUE;
//
// This can occur if there was a CRC error detected by device during communication
// with the host. Device returns error status to host with D2H FIS.
//
} else if ((PortInterrupt & EFI_AHCI_PORT_IS_TFES) &&
(Tfd & EFI_AHCI_PORT_TFD_ERR_INT_CRC))
{
return TRUE;
}
return FALSE;
}
/**
Checks if specified FIS has been received.
@param[in] PciIo Pointer to AHCI controller PciIo.
@param[in] Port SATA port index on which to check.
@param[in] FisType FIS type for which to check.
@retval EFI_SUCCESS FIS received.
@retval EFI_NOT_READY FIS not received yet.
@retval EFI_DEVICE_ERROR AHCI controller reported an error on port.
**/
EFI_STATUS
AhciCheckFisReceived (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port,
IN SATA_FIS_TYPE FisType
)
{
UINT32 Offset;
UINT32 PortInterrupt;
UINT32 PortTfd;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_IS;
PortInterrupt = AhciReadReg (PciIo, Offset);
if ((PortInterrupt & EFI_AHCI_PORT_IS_ERROR_MASK) != 0) {
DEBUG ((DEBUG_ERROR, "AHCI: Error interrupt reported PxIS: %X\n", PortInterrupt));
return EFI_DEVICE_ERROR;
}
//
// For PIO setup FIS - According to SATA 2.6 spec section 11.7, D2h FIS means an error encountered.
// But Qemu and Marvel 9230 sata controller may just receive a D2h FIS from device
// after the transaction is finished successfully.
// To get better device compatibilities, we further check if the PxTFD's ERR bit is set.
// By this way, we can know if there is a real error happened.
//
if (((FisType == SataFisD2H) && ((PortInterrupt & EFI_AHCI_PORT_IS_DHRS) != 0)) ||
((FisType == SataFisPioSetup) && ((PortInterrupt & (EFI_AHCI_PORT_IS_PSS | EFI_AHCI_PORT_IS_DHRS)) != 0)) ||
((FisType == SataFisDmaSetup) && ((PortInterrupt & (EFI_AHCI_PORT_IS_DSS | EFI_AHCI_PORT_IS_DHRS)) != 0)))
{
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_TFD;
PortTfd = AhciReadReg (PciIo, (UINT32)Offset);
if ((PortTfd & EFI_AHCI_PORT_TFD_ERR) != 0) {
return EFI_DEVICE_ERROR;
} else {
return EFI_SUCCESS;
}
}
return EFI_NOT_READY;
}
/**
Waits until specified FIS has been received.
@param[in] PciIo Pointer to AHCI controller PciIo.
@param[in] Port SATA port index on which to check.
@param[in] Timeout Time after which function should stop polling.
@param[in] FisType FIS type for which to check.
@retval EFI_SUCCESS FIS received.
@retval EFI_TIMEOUT FIS failed to arrive within a specified time period.
@retval EFI_DEVICE_ERROR AHCI controller reported an error on port.
**/
EFI_STATUS
AhciWaitUntilFisReceived (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port,
IN UINT64 Timeout,
IN SATA_FIS_TYPE FisType
)
{
EFI_STATUS Status;
BOOLEAN InfiniteWait;
UINT64 Delay;
Delay = DivU64x32 (Timeout, 1000) + 1;
if (Timeout == 0) {
InfiniteWait = TRUE;
} else {
InfiniteWait = FALSE;
}
do {
Status = AhciCheckFisReceived (PciIo, Port, FisType);
if (Status != EFI_NOT_READY) {
return Status;
}
//
// Stall for 100 microseconds.
//
MicroSecondDelay (100);
Delay--;
} while (InfiniteWait || (Delay > 0));
return EFI_TIMEOUT;
}
/**
Prints contents of the ATA command block into the debug port.
@param[in] AtaCommandBlock AtaCommandBlock to print.
@param[in] DebugLevel Debug level on which to print.
**/
VOID
AhciPrintCommandBlock (
IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock,
IN UINT32 DebugLevel
)
{
DEBUG ((DebugLevel, "ATA COMMAND BLOCK:\n"));
DEBUG ((DebugLevel, "AtaCommand: %d\n", AtaCommandBlock->AtaCommand));
DEBUG ((DebugLevel, "AtaFeatures: %X\n", AtaCommandBlock->AtaFeatures));
DEBUG ((DebugLevel, "AtaSectorNumber: %d\n", AtaCommandBlock->AtaSectorNumber));
DEBUG ((DebugLevel, "AtaCylinderLow: %X\n", AtaCommandBlock->AtaCylinderHigh));
DEBUG ((DebugLevel, "AtaCylinderHigh: %X\n", AtaCommandBlock->AtaCylinderHigh));
DEBUG ((DebugLevel, "AtaDeviceHead: %d\n", AtaCommandBlock->AtaDeviceHead));
DEBUG ((DebugLevel, "AtaSectorNumberExp: %d\n", AtaCommandBlock->AtaSectorNumberExp));
DEBUG ((DebugLevel, "AtaCylinderLowExp: %X\n", AtaCommandBlock->AtaCylinderLowExp));
DEBUG ((DebugLevel, "AtaCylinderHighExp: %X\n", AtaCommandBlock->AtaCylinderHighExp));
DEBUG ((DebugLevel, "AtaFeaturesExp: %X\n", AtaCommandBlock->AtaFeaturesExp));
DEBUG ((DebugLevel, "AtaSectorCount: %d\n", AtaCommandBlock->AtaSectorCount));
DEBUG ((DebugLevel, "AtaSectorCountExp: %d\n", AtaCommandBlock->AtaSectorCountExp));
}
/**
Prints contents of the ATA status block into the debug port.
@param[in] AtaStatusBlock AtaStatusBlock to print.
@param[in] DebugLevel Debug level on which to print.
**/
VOID
AhciPrintStatusBlock (
IN EFI_ATA_STATUS_BLOCK *AtaStatusBlock,
IN UINT32 DebugLevel
)
{
//
// Skip NULL pointer
//
if (AtaStatusBlock == NULL) {
return;
}
//
// Only print status and error since we have all of the rest printed as
// a part of command block print.
//
DEBUG ((DebugLevel, "ATA STATUS BLOCK:\n"));
DEBUG ((DebugLevel, "AtaStatus: %d\n", AtaStatusBlock->AtaStatus));
DEBUG ((DebugLevel, "AtaError: %d\n", AtaStatusBlock->AtaError));
}
/**
Start a PIO data transfer on specific port.
@param[in] PciIo The PCI IO protocol instance.
@param[in] AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param[in] Port The number of port.
@param[in] PortMultiplier The timeout value of stop.
@param[in] AtapiCommand The atapi command will be used for the
transfer.
@param[in] AtapiCommandLength The length of the atapi command.
@param[in] Read The transfer direction.
@param[in] AtaCommandBlock The EFI_ATA_COMMAND_BLOCK data.
@param[in, out] AtaStatusBlock The EFI_ATA_STATUS_BLOCK data.
@param[in, out] MemoryAddr The pointer to the data buffer.
@param[in] DataCount The data count to be transferred.
@param[in] Timeout The timeout value of non data transfer, uses 100ns as a unit.
@param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK
used by non-blocking mode.
@retval EFI_DEVICE_ERROR The PIO data transfer abort with error occurs.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_UNSUPPORTED The device is not ready for transfer.
@retval EFI_SUCCESS The PIO data transfer executes successfully.
**/
EFI_STATUS
EFIAPI
AhciPioTransfer (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN EFI_AHCI_ATAPI_COMMAND *AtapiCommand OPTIONAL,
IN UINT8 AtapiCommandLength,
IN BOOLEAN Read,
IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock,
IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock,
IN OUT VOID *MemoryAddr,
IN UINT32 DataCount,
IN UINT64 Timeout,
IN ATA_NONBLOCK_TASK *Task
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS PhyAddr;
VOID *Map;
UINTN MapLength;
EFI_PCI_IO_PROTOCOL_OPERATION Flag;
EFI_AHCI_COMMAND_FIS CFis;
EFI_AHCI_COMMAND_LIST CmdList;
UINT32 PrdCount;
UINT32 Retry;
EFI_STATUS RecoveryStatus;
BOOLEAN DoRetry;
if (Read) {
Flag = EfiPciIoOperationBusMasterWrite;
} else {
Flag = EfiPciIoOperationBusMasterRead;
}
//
// construct command list and command table with pci bus address
//
MapLength = DataCount;
Status = PciIo->Map (
PciIo,
Flag,
MemoryAddr,
&MapLength,
&PhyAddr,
&Map
);
if (EFI_ERROR (Status) || (DataCount != MapLength)) {
return EFI_BAD_BUFFER_SIZE;
}
//
// Package read needed
//
AhciBuildCommandFis (&CFis, AtaCommandBlock);
ZeroMem (&CmdList, sizeof (EFI_AHCI_COMMAND_LIST));
CmdList.AhciCmdCfl = EFI_AHCI_FIS_REGISTER_H2D_LENGTH / 4;
CmdList.AhciCmdW = Read ? 0 : 1;
for (Retry = 0; Retry < AHCI_COMMAND_RETRIES; Retry++) {
AhciBuildCommand (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
&CFis,
&CmdList,
AtapiCommand,
AtapiCommandLength,
0,
(VOID *)(UINTN)PhyAddr,
DataCount
);
DEBUG ((DEBUG_VERBOSE, "Starting command for PIO transfer:\n"));
AhciPrintCommandBlock (AtaCommandBlock, DEBUG_VERBOSE);
Status = AhciStartCommand (
PciIo,
Port,
0,
Timeout
);
if (EFI_ERROR (Status)) {
break;
}
if (Read && (AtapiCommand == 0)) {
Status = AhciWaitUntilFisReceived (PciIo, Port, Timeout, SataFisPioSetup);
if (Status == EFI_SUCCESS) {
PrdCount = *(volatile UINT32 *)(&(AhciRegisters->AhciCmdList[0].AhciCmdPrdbc));
if (PrdCount == DataCount) {
Status = EFI_SUCCESS;
} else {
Status = EFI_DEVICE_ERROR;
}
}
} else {
Status = AhciWaitUntilFisReceived (PciIo, Port, Timeout, SataFisD2H);
}
if (Status == EFI_DEVICE_ERROR) {
DEBUG ((DEBUG_ERROR, "PIO command failed at retry %d\n", Retry));
DoRetry = AhciShouldCmdBeRetried (PciIo, Port); // needs to be called before error recovery
RecoveryStatus = AhciRecoverPortError (PciIo, Port);
if (!DoRetry || EFI_ERROR (RecoveryStatus)) {
break;
}
} else {
break;
}
}
AhciStopCommand (
PciIo,
Port,
Timeout
);
AhciDisableFisReceive (
PciIo,
Port,
Timeout
);
PciIo->Unmap (
PciIo,
Map
);
AhciDumpPortStatus (PciIo, AhciRegisters, Port, AtaStatusBlock);
if (Status == EFI_DEVICE_ERROR) {
DEBUG ((DEBUG_ERROR, "Failed to execute command for PIO transfer:\n"));
//
// Repeat command block here to make sure it is printed on
// device error debug level.
//
AhciPrintCommandBlock (AtaCommandBlock, DEBUG_ERROR);
AhciPrintStatusBlock (AtaStatusBlock, DEBUG_ERROR);
} else {
AhciPrintStatusBlock (AtaStatusBlock, DEBUG_VERBOSE);
}
return Status;
}
/**
Start a DMA data transfer on specific port
@param[in] Instance The ATA_ATAPI_PASS_THRU_INSTANCE protocol instance.
@param[in] AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param[in] Port The number of port.
@param[in] PortMultiplier The timeout value of stop.
@param[in] AtapiCommand The atapi command will be used for the
transfer.
@param[in] AtapiCommandLength The length of the atapi command.
@param[in] Read The transfer direction.
@param[in] AtaCommandBlock The EFI_ATA_COMMAND_BLOCK data.
@param[in, out] AtaStatusBlock The EFI_ATA_STATUS_BLOCK data.
@param[in, out] MemoryAddr The pointer to the data buffer.
@param[in] DataCount The data count to be transferred.
@param[in] Timeout The timeout value of non data transfer, uses 100ns as a unit.
@param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK
used by non-blocking mode.
@retval EFI_DEVICE_ERROR The DMA data transfer abort with error occurs.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_UNSUPPORTED The device is not ready for transfer.
@retval EFI_SUCCESS The DMA data transfer executes successfully.
**/
EFI_STATUS
EFIAPI
AhciDmaTransfer (
IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN EFI_AHCI_ATAPI_COMMAND *AtapiCommand OPTIONAL,
IN UINT8 AtapiCommandLength,
IN BOOLEAN Read,
IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock,
IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock,
IN OUT VOID *MemoryAddr,
IN UINT32 DataCount,
IN UINT64 Timeout,
IN ATA_NONBLOCK_TASK *Task
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS PhyAddr;
VOID *Map;
UINTN MapLength;
EFI_PCI_IO_PROTOCOL_OPERATION Flag;
EFI_AHCI_COMMAND_FIS CFis;
EFI_AHCI_COMMAND_LIST CmdList;
EFI_PCI_IO_PROTOCOL *PciIo;
EFI_TPL OldTpl;
UINT32 Retry;
EFI_STATUS RecoveryStatus;
BOOLEAN DoRetry;
Map = NULL;
PciIo = Instance->PciIo;
if (PciIo == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Set Status to suppress incorrect compiler/analyzer warnings
//
Status = EFI_SUCCESS;
//
// DMA buffer allocation. Needs to be done only once for both sync and async
// DMA transfers irrespective of number of retries.
//
if ((Task == NULL) || ((Task != NULL) && (Task->Map == NULL))) {
if (Read) {
Flag = EfiPciIoOperationBusMasterWrite;
} else {
Flag = EfiPciIoOperationBusMasterRead;
}
MapLength = DataCount;
Status = PciIo->Map (
PciIo,
Flag,
MemoryAddr,
&MapLength,
&PhyAddr,
&Map
);
if (EFI_ERROR (Status) || (DataCount != MapLength)) {
return EFI_BAD_BUFFER_SIZE;
}
if (Task != NULL) {
Task->Map = Map;
}
}
if ((Task == NULL) || ((Task != NULL) && !Task->IsStart)) {
AhciBuildCommandFis (&CFis, AtaCommandBlock);
ZeroMem (&CmdList, sizeof (EFI_AHCI_COMMAND_LIST));
CmdList.AhciCmdCfl = EFI_AHCI_FIS_REGISTER_H2D_LENGTH / 4;
CmdList.AhciCmdW = Read ? 0 : 1;
}
if (Task == NULL) {
//
// Before starting the Blocking BlockIO operation, push to finish all non-blocking
// BlockIO tasks.
// Delay 100us to simulate the blocking time out checking.
//
OldTpl = gBS->RaiseTPL (TPL_NOTIFY);
while (!IsListEmpty (&Instance->NonBlockingTaskList)) {
AsyncNonBlockingTransferRoutine (NULL, Instance);
//
// Stall for 100us.
//
MicroSecondDelay (100);
}
gBS->RestoreTPL (OldTpl);
for (Retry = 0; Retry < AHCI_COMMAND_RETRIES; Retry++) {
AhciBuildCommand (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
&CFis,
&CmdList,
AtapiCommand,
AtapiCommandLength,
0,
(VOID *)(UINTN)PhyAddr,
DataCount
);
DEBUG ((DEBUG_VERBOSE, "Starting command for sync DMA transfer:\n"));
AhciPrintCommandBlock (AtaCommandBlock, DEBUG_VERBOSE);
Status = AhciStartCommand (
PciIo,
Port,
0,
Timeout
);
if (EFI_ERROR (Status)) {
break;
}
Status = AhciWaitUntilFisReceived (PciIo, Port, Timeout, SataFisD2H);
if (Status == EFI_DEVICE_ERROR) {
DEBUG ((DEBUG_ERROR, "DMA command failed at retry: %d\n", Retry));
DoRetry = AhciShouldCmdBeRetried (PciIo, Port); // needs to be called before error recovery
RecoveryStatus = AhciRecoverPortError (PciIo, Port);
if (!DoRetry || EFI_ERROR (RecoveryStatus)) {
break;
}
} else {
break;
}
}
} else {
if (!Task->IsStart) {
AhciBuildCommand (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
&CFis,
&CmdList,
AtapiCommand,
AtapiCommandLength,
0,
(VOID *)(UINTN)PhyAddr,
DataCount
);
DEBUG ((DEBUG_VERBOSE, "Starting command for async DMA transfer:\n"));
AhciPrintCommandBlock (AtaCommandBlock, DEBUG_VERBOSE);
Status = AhciStartCommand (
PciIo,
Port,
0,
Timeout
);
if (!EFI_ERROR (Status)) {
Task->IsStart = TRUE;
}
}
if (Task->IsStart) {
Status = AhciCheckFisReceived (PciIo, Port, SataFisD2H);
if (Status == EFI_DEVICE_ERROR) {
DEBUG ((DEBUG_ERROR, "DMA command failed at retry: %d\n", Task->RetryTimes));
DoRetry = AhciShouldCmdBeRetried (PciIo, Port); // call this before error recovery
RecoveryStatus = AhciRecoverPortError (PciIo, Port);
//
// If recovery passed mark the Task as not started and change the status
// to EFI_NOT_READY. This will make the higher level call this function again
// and on next call the command will be re-issued due to IsStart being FALSE.
// This also makes the next condition decrement the RetryTimes.
//
if (DoRetry && (RecoveryStatus == EFI_SUCCESS)) {
Task->IsStart = FALSE;
Status = EFI_NOT_READY;
}
}
if (Status == EFI_NOT_READY) {
if (!Task->InfiniteWait && (Task->RetryTimes == 0)) {
Status = EFI_TIMEOUT;
} else {
Task->RetryTimes--;
}
}
}
}
//
// For Blocking mode, the command should be stopped, the Fis should be disabled
// and the PciIo should be unmapped.
// For non-blocking mode, only when a error is happened (if the return status is
// EFI_NOT_READY that means the command doesn't finished, try again.), first do the
// context cleanup, then set the packet's Asb status.
//
if ((Task == NULL) ||
((Task != NULL) && (Status != EFI_NOT_READY))
)
{
AhciStopCommand (
PciIo,
Port,
Timeout
);
AhciDisableFisReceive (
PciIo,
Port,
Timeout
);
PciIo->Unmap (
PciIo,
(Task != NULL) ? Task->Map : Map
);
if (Task != NULL) {
Task->Packet->Asb->AtaStatus = 0x01;
}
}
AhciDumpPortStatus (PciIo, AhciRegisters, Port, AtaStatusBlock);
if (Status == EFI_DEVICE_ERROR) {
DEBUG ((DEBUG_ERROR, "Failed to execute command for DMA transfer:\n"));
//
// Repeat command block here to make sure it is printed on
// device error debug level.
//
AhciPrintCommandBlock (AtaCommandBlock, DEBUG_ERROR);
AhciPrintStatusBlock (AtaStatusBlock, DEBUG_ERROR);
} else {
AhciPrintStatusBlock (AtaStatusBlock, DEBUG_VERBOSE);
}
return Status;
}
/**
Start a non data transfer on specific port.
@param[in] PciIo The PCI IO protocol instance.
@param[in] AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param[in] Port The number of port.
@param[in] PortMultiplier The timeout value of stop.
@param[in] AtapiCommand The atapi command will be used for the
transfer.
@param[in] AtapiCommandLength The length of the atapi command.
@param[in] AtaCommandBlock The EFI_ATA_COMMAND_BLOCK data.
@param[in, out] AtaStatusBlock The EFI_ATA_STATUS_BLOCK data.
@param[in] Timeout The timeout value of non data transfer, uses 100ns as a unit.
@param[in] Task Optional. Pointer to the ATA_NONBLOCK_TASK
used by non-blocking mode.
@retval EFI_DEVICE_ERROR The non data transfer abort with error occurs.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_UNSUPPORTED The device is not ready for transfer.
@retval EFI_SUCCESS The non data transfer executes successfully.
**/
EFI_STATUS
EFIAPI
AhciNonDataTransfer (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN EFI_AHCI_ATAPI_COMMAND *AtapiCommand OPTIONAL,
IN UINT8 AtapiCommandLength,
IN EFI_ATA_COMMAND_BLOCK *AtaCommandBlock,
IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock,
IN UINT64 Timeout,
IN ATA_NONBLOCK_TASK *Task
)
{
EFI_STATUS Status;
EFI_AHCI_COMMAND_FIS CFis;
EFI_AHCI_COMMAND_LIST CmdList;
UINT32 Retry;
EFI_STATUS RecoveryStatus;
BOOLEAN DoRetry;
//
// Package read needed
//
AhciBuildCommandFis (&CFis, AtaCommandBlock);
ZeroMem (&CmdList, sizeof (EFI_AHCI_COMMAND_LIST));
CmdList.AhciCmdCfl = EFI_AHCI_FIS_REGISTER_H2D_LENGTH / 4;
for (Retry = 0; Retry < AHCI_COMMAND_RETRIES; Retry++) {
AhciBuildCommand (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
&CFis,
&CmdList,
AtapiCommand,
AtapiCommandLength,
0,
NULL,
0
);
DEBUG ((DEBUG_VERBOSE, "Starting command for non data transfer:\n"));
AhciPrintCommandBlock (AtaCommandBlock, DEBUG_VERBOSE);
Status = AhciStartCommand (
PciIo,
Port,
0,
Timeout
);
if (EFI_ERROR (Status)) {
break;
}
Status = AhciWaitUntilFisReceived (PciIo, Port, Timeout, SataFisD2H);
if (Status == EFI_DEVICE_ERROR) {
DEBUG ((DEBUG_ERROR, "Non data transfer failed at retry %d\n", Retry));
DoRetry = AhciShouldCmdBeRetried (PciIo, Port); // call this before error recovery
RecoveryStatus = AhciRecoverPortError (PciIo, Port);
if (!DoRetry || EFI_ERROR (RecoveryStatus)) {
break;
}
} else {
break;
}
}
AhciStopCommand (
PciIo,
Port,
Timeout
);
AhciDisableFisReceive (
PciIo,
Port,
Timeout
);
AhciDumpPortStatus (PciIo, AhciRegisters, Port, AtaStatusBlock);
if (Status == EFI_DEVICE_ERROR) {
DEBUG ((DEBUG_ERROR, "Failed to execute command for non data transfer:\n"));
//
// Repeat command block here to make sure it is printed on
// device error debug level.
//
AhciPrintCommandBlock (AtaCommandBlock, DEBUG_ERROR);
AhciPrintStatusBlock (AtaStatusBlock, DEBUG_ERROR);
} else {
AhciPrintStatusBlock (AtaStatusBlock, DEBUG_VERBOSE);
}
return Status;
}
/**
Stop command running for giving port
@param PciIo The PCI IO protocol instance.
@param Port The number of port.
@param Timeout The timeout value of stop, uses 100ns as a unit.
@retval EFI_DEVICE_ERROR The command stop unsuccessfully.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_SUCCESS The command stop successfully.
**/
EFI_STATUS
EFIAPI
AhciStopCommand (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port,
IN UINT64 Timeout
)
{
UINT32 Offset;
UINT32 Data;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
Data = AhciReadReg (PciIo, Offset);
if ((Data & (EFI_AHCI_PORT_CMD_ST | EFI_AHCI_PORT_CMD_CR)) == 0) {
return EFI_SUCCESS;
}
if ((Data & EFI_AHCI_PORT_CMD_ST) != 0) {
AhciAndReg (PciIo, Offset, (UINT32) ~(EFI_AHCI_PORT_CMD_ST));
}
return AhciWaitMmioSet (
PciIo,
Offset,
EFI_AHCI_PORT_CMD_CR,
0,
Timeout
);
}
/**
Start command for give slot on specific port.
@param PciIo The PCI IO protocol instance.
@param Port The number of port.
@param CommandSlot The number of Command Slot.
@param Timeout The timeout value of start, uses 100ns as a unit.
@retval EFI_DEVICE_ERROR The command start unsuccessfully.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_SUCCESS The command start successfully.
**/
EFI_STATUS
EFIAPI
AhciStartCommand (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT8 Port,
IN UINT8 CommandSlot,
IN UINT64 Timeout
)
{
UINT32 CmdSlotBit;
EFI_STATUS Status;
UINT32 PortStatus;
UINT32 StartCmd;
UINT32 PortTfd;
UINT32 Offset;
UINT32 Capability;
//
// Collect AHCI controller information
//
Capability = AhciReadReg (PciIo, EFI_AHCI_CAPABILITY_OFFSET);
CmdSlotBit = (UINT32)(1 << CommandSlot);
AhciClearPortStatus (
PciIo,
Port
);
Status = AhciEnableFisReceive (
PciIo,
Port,
Timeout
);
if (EFI_ERROR (Status)) {
return Status;
}
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
PortStatus = AhciReadReg (PciIo, Offset);
StartCmd = 0;
if ((PortStatus & EFI_AHCI_PORT_CMD_ALPE) != 0) {
StartCmd = AhciReadReg (PciIo, Offset);
StartCmd &= ~EFI_AHCI_PORT_CMD_ICC_MASK;
StartCmd |= EFI_AHCI_PORT_CMD_ACTIVE;
}
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_TFD;
PortTfd = AhciReadReg (PciIo, Offset);
if ((PortTfd & (EFI_AHCI_PORT_TFD_BSY | EFI_AHCI_PORT_TFD_DRQ)) != 0) {
if ((Capability & BIT24) != 0) {
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_CMD_CLO);
AhciWaitMmioSet (
PciIo,
Offset,
EFI_AHCI_PORT_CMD_CLO,
0,
Timeout
);
}
}
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_CMD_ST | StartCmd);
//
// Setting the command
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CI;
AhciAndReg (PciIo, Offset, 0);
AhciOrReg (PciIo, Offset, CmdSlotBit);
return EFI_SUCCESS;
}
/**
Do AHCI HBA reset.
@param PciIo The PCI IO protocol instance.
@param Timeout The timeout value of reset, uses 100ns as a unit.
@retval EFI_DEVICE_ERROR AHCI controller is failed to complete hardware reset.
@retval EFI_TIMEOUT The reset operation is time out.
@retval EFI_SUCCESS AHCI controller is reset successfully.
**/
EFI_STATUS
EFIAPI
AhciReset (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN UINT64 Timeout
)
{
UINT64 Delay;
UINT32 Value;
//
// Make sure that GHC.AE bit is set before accessing any AHCI registers.
//
Value = AhciReadReg (PciIo, EFI_AHCI_GHC_OFFSET);
if ((Value & EFI_AHCI_GHC_ENABLE) == 0) {
AhciOrReg (PciIo, EFI_AHCI_GHC_OFFSET, EFI_AHCI_GHC_ENABLE);
}
AhciOrReg (PciIo, EFI_AHCI_GHC_OFFSET, EFI_AHCI_GHC_RESET);
Delay = DivU64x32 (Timeout, 1000) + 1;
do {
Value = AhciReadReg (PciIo, EFI_AHCI_GHC_OFFSET);
if ((Value & EFI_AHCI_GHC_RESET) == 0) {
break;
}
//
// Stall for 100 microseconds.
//
MicroSecondDelay (100);
Delay--;
} while (Delay > 0);
if (Delay == 0) {
return EFI_TIMEOUT;
}
return EFI_SUCCESS;
}
/**
Send SMART Return Status command to check if the execution of SMART cmd is successful or not.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The port multiplier port number.
@param AtaStatusBlock A pointer to EFI_ATA_STATUS_BLOCK data structure.
@retval EFI_SUCCESS Successfully get the return status of S.M.A.R.T command execution.
@retval Others Fail to get return status data.
**/
EFI_STATUS
EFIAPI
AhciAtaSmartReturnStatusCheck (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock
)
{
EFI_STATUS Status;
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
UINT8 LBAMid;
UINT8 LBAHigh;
UINTN FisBaseAddr;
UINT32 Value;
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
AtaCommandBlock.AtaCommand = ATA_CMD_SMART;
AtaCommandBlock.AtaFeatures = ATA_SMART_RETURN_STATUS;
AtaCommandBlock.AtaCylinderLow = ATA_CONSTANT_4F;
AtaCommandBlock.AtaCylinderHigh = ATA_CONSTANT_C2;
//
// Send S.M.A.R.T Read Return Status command to device
//
Status = AhciNonDataTransfer (
PciIo,
AhciRegisters,
(UINT8)Port,
(UINT8)PortMultiplier,
NULL,
0,
&AtaCommandBlock,
AtaStatusBlock,
ATA_ATAPI_TIMEOUT,
NULL
);
if (EFI_ERROR (Status)) {
REPORT_STATUS_CODE (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
(EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_DISABLED)
);
return EFI_DEVICE_ERROR;
}
REPORT_STATUS_CODE (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_ENABLE)
);
FisBaseAddr = (UINTN)AhciRegisters->AhciRFis + Port * sizeof (EFI_AHCI_RECEIVED_FIS);
Value = *(UINT32 *)(FisBaseAddr + EFI_AHCI_D2H_FIS_OFFSET);
if ((Value & EFI_AHCI_FIS_TYPE_MASK) == EFI_AHCI_FIS_REGISTER_D2H) {
LBAMid = ((UINT8 *)(UINTN)(FisBaseAddr + EFI_AHCI_D2H_FIS_OFFSET))[5];
LBAHigh = ((UINT8 *)(UINTN)(FisBaseAddr + EFI_AHCI_D2H_FIS_OFFSET))[6];
if ((LBAMid == 0x4f) && (LBAHigh == 0xc2)) {
//
// The threshold exceeded condition is not detected by the device
//
DEBUG ((DEBUG_INFO, "The S.M.A.R.T threshold exceeded condition is not detected\n"));
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
//
DEBUG ((DEBUG_INFO, "The S.M.A.R.T threshold exceeded condition is detected\n"));
REPORT_STATUS_CODE (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_OVERTHRESHOLD)
);
}
}
return EFI_SUCCESS;
}
/**
Enable SMART command of the disk if supported.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The port multiplier port number.
@param IdentifyData A pointer to data buffer which is used to contain IDENTIFY data.
@param AtaStatusBlock A pointer to EFI_ATA_STATUS_BLOCK data structure.
**/
VOID
EFIAPI
AhciAtaSmartSupport (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN EFI_IDENTIFY_DATA *IdentifyData,
IN OUT EFI_ATA_STATUS_BLOCK *AtaStatusBlock
)
{
EFI_STATUS Status;
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
//
// Detect if the device supports S.M.A.R.T.
//
if ((IdentifyData->AtaData.command_set_supported_82 & 0x0001) != 0x0001) {
//
// S.M.A.R.T is not supported by the device
//
DEBUG ((
DEBUG_INFO,
"S.M.A.R.T feature is not supported at port [%d] PortMultiplier [%d]!\n",
Port,
PortMultiplier
));
REPORT_STATUS_CODE (
EFI_ERROR_CODE | EFI_ERROR_MINOR,
(EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_NOTSUPPORTED)
);
} else {
//
// Check if the feature is enabled. If not, then enable S.M.A.R.T.
//
if ((IdentifyData->AtaData.command_set_feature_enb_85 & 0x0001) != 0x0001) {
REPORT_STATUS_CODE (
EFI_PROGRESS_CODE,
(EFI_IO_BUS_ATA_ATAPI | EFI_IOB_ATA_BUS_SMART_DISABLE)
);
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
AtaCommandBlock.AtaCommand = ATA_CMD_SMART;
AtaCommandBlock.AtaFeatures = ATA_SMART_ENABLE_OPERATION;
AtaCommandBlock.AtaCylinderLow = ATA_CONSTANT_4F;
AtaCommandBlock.AtaCylinderHigh = ATA_CONSTANT_C2;
//
// Send S.M.A.R.T Enable command to device
//
Status = AhciNonDataTransfer (
PciIo,
AhciRegisters,
(UINT8)Port,
(UINT8)PortMultiplier,
NULL,
0,
&AtaCommandBlock,
AtaStatusBlock,
ATA_ATAPI_TIMEOUT,
NULL
);
if (!EFI_ERROR (Status)) {
//
// Send S.M.A.R.T AutoSave command to device
//
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
AtaCommandBlock.AtaCommand = ATA_CMD_SMART;
AtaCommandBlock.AtaFeatures = 0xD2;
AtaCommandBlock.AtaSectorCount = 0xF1;
AtaCommandBlock.AtaCylinderLow = ATA_CONSTANT_4F;
AtaCommandBlock.AtaCylinderHigh = ATA_CONSTANT_C2;
Status = AhciNonDataTransfer (
PciIo,
AhciRegisters,
(UINT8)Port,
(UINT8)PortMultiplier,
NULL,
0,
&AtaCommandBlock,
AtaStatusBlock,
ATA_ATAPI_TIMEOUT,
NULL
);
}
}
AhciAtaSmartReturnStatusCheck (
PciIo,
AhciRegisters,
(UINT8)Port,
(UINT8)PortMultiplier,
AtaStatusBlock
);
DEBUG ((
DEBUG_INFO,
"Enabled S.M.A.R.T feature at port [%d] PortMultiplier [%d]!\n",
Port,
PortMultiplier
));
}
return;
}
/**
Send Buffer cmd to specific device.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The port multiplier port number.
@param Buffer The data buffer to store IDENTIFY PACKET data.
@retval EFI_DEVICE_ERROR The cmd abort with error occurs.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_UNSUPPORTED The device is not ready for executing.
@retval EFI_SUCCESS The cmd executes successfully.
**/
EFI_STATUS
EFIAPI
AhciIdentify (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN OUT EFI_IDENTIFY_DATA *Buffer
)
{
EFI_STATUS Status;
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
EFI_ATA_STATUS_BLOCK AtaStatusBlock;
if ((PciIo == NULL) || (AhciRegisters == NULL) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
ZeroMem (&AtaStatusBlock, sizeof (EFI_ATA_STATUS_BLOCK));
AtaCommandBlock.AtaCommand = ATA_CMD_IDENTIFY_DRIVE;
AtaCommandBlock.AtaSectorCount = 1;
Status = AhciPioTransfer (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
NULL,
0,
TRUE,
&AtaCommandBlock,
&AtaStatusBlock,
Buffer,
sizeof (EFI_IDENTIFY_DATA),
ATA_ATAPI_TIMEOUT,
NULL
);
return Status;
}
/**
Send Buffer cmd to specific device.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The port multiplier port number.
@param Buffer The data buffer to store IDENTIFY PACKET data.
@retval EFI_DEVICE_ERROR The cmd abort with error occurs.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_UNSUPPORTED The device is not ready for executing.
@retval EFI_SUCCESS The cmd executes successfully.
**/
EFI_STATUS
EFIAPI
AhciIdentifyPacket (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN OUT EFI_IDENTIFY_DATA *Buffer
)
{
EFI_STATUS Status;
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
EFI_ATA_STATUS_BLOCK AtaStatusBlock;
if ((PciIo == NULL) || (AhciRegisters == NULL)) {
return EFI_INVALID_PARAMETER;
}
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
ZeroMem (&AtaStatusBlock, sizeof (EFI_ATA_STATUS_BLOCK));
AtaCommandBlock.AtaCommand = ATA_CMD_IDENTIFY_DEVICE;
AtaCommandBlock.AtaSectorCount = 1;
Status = AhciPioTransfer (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
NULL,
0,
TRUE,
&AtaCommandBlock,
&AtaStatusBlock,
Buffer,
sizeof (EFI_IDENTIFY_DATA),
ATA_ATAPI_TIMEOUT,
NULL
);
return Status;
}
/**
Send SET FEATURE cmd on specific device.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The port multiplier port number.
@param Feature The data to send Feature register.
@param FeatureSpecificData The specific data for SET FEATURE cmd.
@param Timeout The timeout value of SET FEATURE cmd, uses 100ns as a unit.
@retval EFI_DEVICE_ERROR The cmd abort with error occurs.
@retval EFI_TIMEOUT The operation is time out.
@retval EFI_UNSUPPORTED The device is not ready for executing.
@retval EFI_SUCCESS The cmd executes successfully.
**/
EFI_STATUS
EFIAPI
AhciDeviceSetFeature (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN UINT16 Feature,
IN UINT32 FeatureSpecificData,
IN UINT64 Timeout
)
{
EFI_STATUS Status;
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
EFI_ATA_STATUS_BLOCK AtaStatusBlock;
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
ZeroMem (&AtaStatusBlock, sizeof (EFI_ATA_STATUS_BLOCK));
AtaCommandBlock.AtaCommand = ATA_CMD_SET_FEATURES;
AtaCommandBlock.AtaFeatures = (UINT8)Feature;
AtaCommandBlock.AtaFeaturesExp = (UINT8)(Feature >> 8);
AtaCommandBlock.AtaSectorCount = (UINT8)FeatureSpecificData;
AtaCommandBlock.AtaSectorNumber = (UINT8)(FeatureSpecificData >> 8);
AtaCommandBlock.AtaCylinderLow = (UINT8)(FeatureSpecificData >> 16);
AtaCommandBlock.AtaCylinderHigh = (UINT8)(FeatureSpecificData >> 24);
Status = AhciNonDataTransfer (
PciIo,
AhciRegisters,
(UINT8)Port,
(UINT8)PortMultiplier,
NULL,
0,
&AtaCommandBlock,
&AtaStatusBlock,
Timeout,
NULL
);
return Status;
}
/**
This function is used to send out ATAPI commands conforms to the Packet Command
with PIO Protocol.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The number of port multiplier.
@param Packet A pointer to EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET structure.
@retval EFI_SUCCESS send out the ATAPI packet command successfully
and device sends data successfully.
@retval EFI_DEVICE_ERROR the device failed to send data.
**/
EFI_STATUS
EFIAPI
AhciPacketCommandExecute (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN EFI_EXT_SCSI_PASS_THRU_SCSI_REQUEST_PACKET *Packet
)
{
EFI_STATUS Status;
VOID *Buffer;
UINT32 Length;
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
EFI_ATA_STATUS_BLOCK AtaStatusBlock;
BOOLEAN Read;
if ((Packet == NULL) || (Packet->Cdb == NULL)) {
return EFI_INVALID_PARAMETER;
}
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
ZeroMem (&AtaStatusBlock, sizeof (EFI_ATA_STATUS_BLOCK));
AtaCommandBlock.AtaCommand = ATA_CMD_PACKET;
//
// No OVL; No DMA
//
AtaCommandBlock.AtaFeatures = 0x00;
//
// set the transfersize to ATAPI_MAX_BYTE_COUNT to let the device
// determine how many data should be transferred.
//
AtaCommandBlock.AtaCylinderLow = (UINT8)(ATAPI_MAX_BYTE_COUNT & 0x00ff);
AtaCommandBlock.AtaCylinderHigh = (UINT8)(ATAPI_MAX_BYTE_COUNT >> 8);
if (Packet->DataDirection == EFI_EXT_SCSI_DATA_DIRECTION_READ) {
Buffer = Packet->InDataBuffer;
Length = Packet->InTransferLength;
Read = TRUE;
} else {
Buffer = Packet->OutDataBuffer;
Length = Packet->OutTransferLength;
Read = FALSE;
}
if (Length == 0) {
Status = AhciNonDataTransfer (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
Packet->Cdb,
Packet->CdbLength,
&AtaCommandBlock,
&AtaStatusBlock,
Packet->Timeout,
NULL
);
} else {
Status = AhciPioTransfer (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
Packet->Cdb,
Packet->CdbLength,
Read,
&AtaCommandBlock,
&AtaStatusBlock,
Buffer,
Length,
Packet->Timeout,
NULL
);
}
return Status;
}
/**
Allocate transfer-related data struct which is used at AHCI mode.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
**/
EFI_STATUS
EFIAPI
AhciCreateTransferDescriptor (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN OUT EFI_AHCI_REGISTERS *AhciRegisters
)
{
EFI_STATUS Status;
UINTN Bytes;
VOID *Buffer;
UINT32 Capability;
UINT32 PortImplementBitMap;
UINT8 MaxPortNumber;
UINT8 MaxCommandSlotNumber;
BOOLEAN Support64Bit;
UINT64 MaxReceiveFisSize;
UINT64 MaxCommandListSize;
UINT64 MaxCommandTableSize;
EFI_PHYSICAL_ADDRESS AhciRFisPciAddr;
EFI_PHYSICAL_ADDRESS AhciCmdListPciAddr;
EFI_PHYSICAL_ADDRESS AhciCommandTablePciAddr;
Buffer = NULL;
//
// Collect AHCI controller information
//
Capability = AhciReadReg (PciIo, EFI_AHCI_CAPABILITY_OFFSET);
//
// Get the number of command slots per port supported by this HBA.
//
MaxCommandSlotNumber = (UINT8)(((Capability & 0x1F00) >> 8) + 1);
Support64Bit = (BOOLEAN)(((Capability & BIT31) != 0) ? TRUE : FALSE);
PortImplementBitMap = AhciReadReg (PciIo, EFI_AHCI_PI_OFFSET);
//
// Get the highest bit of implemented ports which decides how many bytes are allocated for received FIS.
//
MaxPortNumber = (UINT8)(UINTN)(HighBitSet32 (PortImplementBitMap) + 1);
if (MaxPortNumber == 0) {
return EFI_DEVICE_ERROR;
}
MaxReceiveFisSize = MaxPortNumber * sizeof (EFI_AHCI_RECEIVED_FIS);
Status = PciIo->AllocateBuffer (
PciIo,
AllocateAnyPages,
EfiBootServicesData,
EFI_SIZE_TO_PAGES ((UINTN)MaxReceiveFisSize),
&Buffer,
0
);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
ZeroMem (Buffer, (UINTN)MaxReceiveFisSize);
AhciRegisters->AhciRFis = Buffer;
AhciRegisters->MaxReceiveFisSize = MaxReceiveFisSize;
Bytes = (UINTN)MaxReceiveFisSize;
Status = PciIo->Map (
PciIo,
EfiPciIoOperationBusMasterCommonBuffer,
Buffer,
&Bytes,
&AhciRFisPciAddr,
&AhciRegisters->MapRFis
);
if (EFI_ERROR (Status) || (Bytes != MaxReceiveFisSize)) {
//
// Map error or unable to map the whole RFis buffer into a contiguous region.
//
Status = EFI_OUT_OF_RESOURCES;
goto Error6;
}
if ((!Support64Bit) && (AhciRFisPciAddr > 0x100000000ULL)) {
//
// The AHCI HBA doesn't support 64bit addressing, so should not get a >4G pci bus master address.
//
Status = EFI_DEVICE_ERROR;
goto Error5;
}
AhciRegisters->AhciRFisPciAddr = (EFI_AHCI_RECEIVED_FIS *)(UINTN)AhciRFisPciAddr;
//
// Allocate memory for command list
// Note that the implementation is a single task model which only use a command list for all ports.
//
Buffer = NULL;
MaxCommandListSize = MaxCommandSlotNumber * sizeof (EFI_AHCI_COMMAND_LIST);
Status = PciIo->AllocateBuffer (
PciIo,
AllocateAnyPages,
EfiBootServicesData,
EFI_SIZE_TO_PAGES ((UINTN)MaxCommandListSize),
&Buffer,
0
);
if (EFI_ERROR (Status)) {
//
// Free mapped resource.
//
Status = EFI_OUT_OF_RESOURCES;
goto Error5;
}
ZeroMem (Buffer, (UINTN)MaxCommandListSize);
AhciRegisters->AhciCmdList = Buffer;
AhciRegisters->MaxCommandListSize = MaxCommandListSize;
Bytes = (UINTN)MaxCommandListSize;
Status = PciIo->Map (
PciIo,
EfiPciIoOperationBusMasterCommonBuffer,
Buffer,
&Bytes,
&AhciCmdListPciAddr,
&AhciRegisters->MapCmdList
);
if (EFI_ERROR (Status) || (Bytes != MaxCommandListSize)) {
//
// Map error or unable to map the whole cmd list buffer into a contiguous region.
//
Status = EFI_OUT_OF_RESOURCES;
goto Error4;
}
if ((!Support64Bit) && (AhciCmdListPciAddr > 0x100000000ULL)) {
//
// The AHCI HBA doesn't support 64bit addressing, so should not get a >4G pci bus master address.
//
Status = EFI_DEVICE_ERROR;
goto Error3;
}
AhciRegisters->AhciCmdListPciAddr = (EFI_AHCI_COMMAND_LIST *)(UINTN)AhciCmdListPciAddr;
//
// Allocate memory for command table
// According to AHCI 1.3 spec, a PRD table can contain maximum 65535 entries.
//
Buffer = NULL;
MaxCommandTableSize = sizeof (EFI_AHCI_COMMAND_TABLE);
Status = PciIo->AllocateBuffer (
PciIo,
AllocateAnyPages,
EfiBootServicesData,
EFI_SIZE_TO_PAGES ((UINTN)MaxCommandTableSize),
&Buffer,
0
);
if (EFI_ERROR (Status)) {
//
// Free mapped resource.
//
Status = EFI_OUT_OF_RESOURCES;
goto Error3;
}
ZeroMem (Buffer, (UINTN)MaxCommandTableSize);
AhciRegisters->AhciCommandTable = Buffer;
AhciRegisters->MaxCommandTableSize = MaxCommandTableSize;
Bytes = (UINTN)MaxCommandTableSize;
Status = PciIo->Map (
PciIo,
EfiPciIoOperationBusMasterCommonBuffer,
Buffer,
&Bytes,
&AhciCommandTablePciAddr,
&AhciRegisters->MapCommandTable
);
if (EFI_ERROR (Status) || (Bytes != MaxCommandTableSize)) {
//
// Map error or unable to map the whole cmd list buffer into a contiguous region.
//
Status = EFI_OUT_OF_RESOURCES;
goto Error2;
}
if ((!Support64Bit) && (AhciCommandTablePciAddr > 0x100000000ULL)) {
//
// The AHCI HBA doesn't support 64bit addressing, so should not get a >4G pci bus master address.
//
Status = EFI_DEVICE_ERROR;
goto Error1;
}
AhciRegisters->AhciCommandTablePciAddr = (EFI_AHCI_COMMAND_TABLE *)(UINTN)AhciCommandTablePciAddr;
return EFI_SUCCESS;
//
// Map error or unable to map the whole CmdList buffer into a contiguous region.
//
Error1:
PciIo->Unmap (
PciIo,
AhciRegisters->MapCommandTable
);
Error2:
PciIo->FreeBuffer (
PciIo,
EFI_SIZE_TO_PAGES ((UINTN)MaxCommandTableSize),
AhciRegisters->AhciCommandTable
);
Error3:
PciIo->Unmap (
PciIo,
AhciRegisters->MapCmdList
);
Error4:
PciIo->FreeBuffer (
PciIo,
EFI_SIZE_TO_PAGES ((UINTN)MaxCommandListSize),
AhciRegisters->AhciCmdList
);
Error5:
PciIo->Unmap (
PciIo,
AhciRegisters->MapRFis
);
Error6:
PciIo->FreeBuffer (
PciIo,
EFI_SIZE_TO_PAGES ((UINTN)MaxReceiveFisSize),
AhciRegisters->AhciRFis
);
return Status;
}
/**
Read logs from SATA device.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The multiplier of port.
@param Buffer The data buffer to store SATA logs.
@param LogNumber The address of the log.
@param PageNumber The page number of the log.
@retval EFI_INVALID_PARAMETER PciIo, AhciRegisters or Buffer is NULL.
@retval others Return status of AhciPioTransfer().
**/
EFI_STATUS
AhciReadLogExt (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN OUT UINT8 *Buffer,
IN UINT8 LogNumber,
IN UINT8 PageNumber
)
{
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
EFI_ATA_STATUS_BLOCK AtaStatusBlock;
if ((PciIo == NULL) || (AhciRegisters == NULL) || (Buffer == NULL)) {
return EFI_INVALID_PARAMETER;
}
///
/// Read log from device
///
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
ZeroMem (&AtaStatusBlock, sizeof (EFI_ATA_STATUS_BLOCK));
ZeroMem (Buffer, 512);
AtaCommandBlock.AtaCommand = ATA_CMD_READ_LOG_EXT;
AtaCommandBlock.AtaSectorCount = 1;
AtaCommandBlock.AtaSectorNumber = LogNumber;
AtaCommandBlock.AtaCylinderLow = PageNumber;
return AhciPioTransfer (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
NULL,
0,
TRUE,
&AtaCommandBlock,
&AtaStatusBlock,
Buffer,
512,
ATA_ATAPI_TIMEOUT,
NULL
);
}
/**
Enable DEVSLP of the disk if supported.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The multiplier of port.
@param IdentifyData A pointer to data buffer which is used to contain IDENTIFY data.
@retval EFI_SUCCESS The DEVSLP is enabled per policy successfully.
@retval EFI_UNSUPPORTED The DEVSLP isn't supported by the controller/device and policy requires to enable it.
**/
EFI_STATUS
AhciEnableDevSlp (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN EFI_IDENTIFY_DATA *IdentifyData
)
{
EFI_STATUS Status;
UINT32 Offset;
UINT32 Capability2;
UINT8 LogData[512];
DEVSLP_TIMING_VARIABLES DevSlpTiming;
UINT32 PortCmd;
UINT32 PortDevSlp;
if (mAtaAtapiPolicy->DeviceSleepEnable != 1) {
return EFI_SUCCESS;
}
//
// Do not enable DevSlp if DevSlp is not supported.
//
Capability2 = AhciReadReg (PciIo, AHCI_CAPABILITY2_OFFSET);
DEBUG ((DEBUG_INFO, "AHCI CAPABILITY2 = %08x\n", Capability2));
if ((Capability2 & AHCI_CAP2_SDS) == 0) {
return EFI_UNSUPPORTED;
}
//
// Do not enable DevSlp if DevSlp is not present
// Do not enable DevSlp if Hot Plug or Mechanical Presence Switch is supported
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH;
PortCmd = AhciReadReg (PciIo, Offset + EFI_AHCI_PORT_CMD);
PortDevSlp = AhciReadReg (PciIo, Offset + AHCI_PORT_DEVSLP);
DEBUG ((DEBUG_INFO, "Port CMD/DEVSLP = %08x / %08x\n", PortCmd, PortDevSlp));
if (((PortDevSlp & AHCI_PORT_DEVSLP_DSP) == 0) ||
((PortCmd & (EFI_AHCI_PORT_CMD_HPCP | EFI_AHCI_PORT_CMD_MPSP)) != 0)
)
{
return EFI_UNSUPPORTED;
}
//
// Do not enable DevSlp if the device doesn't support DevSlp
//
DEBUG ((
DEBUG_INFO,
"IDENTIFY DEVICE: [77] = %04x, [78] = %04x, [79] = %04x\n",
IdentifyData->AtaData.reserved_77,
IdentifyData->AtaData.serial_ata_features_supported,
IdentifyData->AtaData.serial_ata_features_enabled
));
if ((IdentifyData->AtaData.serial_ata_features_supported & BIT8) == 0) {
DEBUG ((
DEBUG_INFO,
"DevSlp feature is not supported for device at port [%d] PortMultiplier [%d]!\n",
Port,
PortMultiplier
));
return EFI_UNSUPPORTED;
}
//
// Enable DevSlp when it is not enabled.
//
if ((IdentifyData->AtaData.serial_ata_features_enabled & BIT8) != 0) {
Status = AhciDeviceSetFeature (
PciIo,
AhciRegisters,
Port,
0,
ATA_SUB_CMD_ENABLE_SATA_FEATURE,
0x09,
ATA_ATAPI_TIMEOUT
);
DEBUG ((
DEBUG_INFO,
"DevSlp set feature for device at port [%d] PortMultiplier [%d] - %r\n",
Port,
PortMultiplier,
Status
));
if (EFI_ERROR (Status)) {
return Status;
}
}
Status = AhciReadLogExt (PciIo, AhciRegisters, Port, PortMultiplier, LogData, 0x30, 0x08);
//
// Clear PxCMD.ST and PxDEVSLP.ADSE before updating PxDEVSLP.DITO and PxDEVSLP.MDAT.
//
AhciWriteReg (PciIo, Offset + EFI_AHCI_PORT_CMD, PortCmd & ~EFI_AHCI_PORT_CMD_ST);
PortDevSlp &= ~AHCI_PORT_DEVSLP_ADSE;
AhciWriteReg (PciIo, Offset + AHCI_PORT_DEVSLP, PortDevSlp);
//
// Set PxDEVSLP.DETO and PxDEVSLP.MDAT to 0.
//
PortDevSlp &= ~AHCI_PORT_DEVSLP_DETO_MASK;
PortDevSlp &= ~AHCI_PORT_DEVSLP_MDAT_MASK;
AhciWriteReg (PciIo, Offset + AHCI_PORT_DEVSLP, PortDevSlp);
DEBUG ((DEBUG_INFO, "Read Log Ext at port [%d] PortMultiplier [%d] - %r\n", Port, PortMultiplier, Status));
if (EFI_ERROR (Status)) {
//
// Assume DEVSLP TIMING VARIABLES is not supported if the Identify Device Data log (30h, 8) fails
//
ZeroMem (&DevSlpTiming, sizeof (DevSlpTiming));
} else {
CopyMem (&DevSlpTiming, &LogData[48], sizeof (DevSlpTiming));
DEBUG ((
DEBUG_INFO,
"DevSlpTiming: Supported(%d), Deto(%d), Madt(%d)\n",
DevSlpTiming.Supported,
DevSlpTiming.Deto,
DevSlpTiming.Madt
));
}
//
// Use 20ms as default DETO when DEVSLP TIMING VARIABLES is not supported or the DETO is 0.
//
if ((DevSlpTiming.Supported == 0) || (DevSlpTiming.Deto == 0)) {
DevSlpTiming.Deto = 20;
}
//
// Use 10ms as default MADT when DEVSLP TIMING VARIABLES is not supported or the MADT is 0.
//
if ((DevSlpTiming.Supported == 0) || (DevSlpTiming.Madt == 0)) {
DevSlpTiming.Madt = 10;
}
PortDevSlp |= DevSlpTiming.Deto << 2;
PortDevSlp |= DevSlpTiming.Madt << 10;
AhciOrReg (PciIo, Offset + AHCI_PORT_DEVSLP, PortDevSlp);
if (mAtaAtapiPolicy->AggressiveDeviceSleepEnable == 1) {
if ((Capability2 & AHCI_CAP2_SADM) != 0) {
PortDevSlp &= ~AHCI_PORT_DEVSLP_DITO_MASK;
PortDevSlp |= (625 << 15);
AhciWriteReg (PciIo, Offset + AHCI_PORT_DEVSLP, PortDevSlp);
PortDevSlp |= AHCI_PORT_DEVSLP_ADSE;
AhciWriteReg (PciIo, Offset + AHCI_PORT_DEVSLP, PortDevSlp);
}
}
AhciWriteReg (PciIo, Offset + EFI_AHCI_PORT_CMD, PortCmd);
DEBUG ((
DEBUG_INFO,
"Enabled DevSlp feature at port [%d] PortMultiplier [%d], Port CMD/DEVSLP = %08x / %08x\n",
Port,
PortMultiplier,
PortCmd,
PortDevSlp
));
return EFI_SUCCESS;
}
/**
Spin-up disk if IDD was incomplete or PUIS feature is enabled
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The multiplier of port.
@param IdentifyData A pointer to data buffer which is used to contain IDENTIFY data.
**/
EFI_STATUS
AhciSpinUpDisk (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier,
IN OUT EFI_IDENTIFY_DATA *IdentifyData
)
{
EFI_STATUS Status;
EFI_ATA_COMMAND_BLOCK AtaCommandBlock;
EFI_ATA_STATUS_BLOCK AtaStatusBlock;
UINT8 Buffer[512];
if (IdentifyData->AtaData.specific_config == ATA_SPINUP_CFG_REQUIRED_IDD_INCOMPLETE) {
//
// Use SET_FEATURE subcommand to spin up the device.
//
Status = AhciDeviceSetFeature (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
ATA_SUB_CMD_PUIS_SET_DEVICE_SPINUP,
0x00,
ATA_SPINUP_TIMEOUT
);
DEBUG ((
DEBUG_INFO,
"CMD_PUIS_SET_DEVICE_SPINUP for device at port [%d] PortMultiplier [%d] - %r!\n",
Port,
PortMultiplier,
Status
));
if (EFI_ERROR (Status)) {
return Status;
}
} else {
ASSERT (IdentifyData->AtaData.specific_config == ATA_SPINUP_CFG_NOT_REQUIRED_IDD_INCOMPLETE);
//
// Use READ_SECTORS to spin up the device if SpinUp SET FEATURE subcommand is not supported
//
ZeroMem (&AtaCommandBlock, sizeof (EFI_ATA_COMMAND_BLOCK));
ZeroMem (&AtaStatusBlock, sizeof (EFI_ATA_STATUS_BLOCK));
//
// Perform READ SECTORS PIO Data-In command to Read LBA 0
//
AtaCommandBlock.AtaCommand = ATA_CMD_READ_SECTORS;
AtaCommandBlock.AtaSectorCount = 0x1;
Status = AhciPioTransfer (
PciIo,
AhciRegisters,
Port,
PortMultiplier,
NULL,
0,
TRUE,
&AtaCommandBlock,
&AtaStatusBlock,
&Buffer,
sizeof (Buffer),
ATA_SPINUP_TIMEOUT,
NULL
);
DEBUG ((
DEBUG_INFO,
"Read LBA 0 for device at port [%d] PortMultiplier [%d] - %r!\n",
Port,
PortMultiplier,
Status
));
if (EFI_ERROR (Status)) {
return Status;
}
}
//
// Read the complete IDENTIFY DEVICE data.
//
ZeroMem (IdentifyData, sizeof (*IdentifyData));
Status = AhciIdentify (PciIo, AhciRegisters, Port, PortMultiplier, IdentifyData);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_ERROR,
"Read IDD failed for device at port [%d] PortMultiplier [%d] - %r!\n",
Port,
PortMultiplier,
Status
));
return Status;
}
DEBUG ((
DEBUG_INFO,
"IDENTIFY DEVICE: [0] = %016x, [2] = %016x, [83] = %016x, [86] = %016x\n",
IdentifyData->AtaData.config,
IdentifyData->AtaData.specific_config,
IdentifyData->AtaData.command_set_supported_83,
IdentifyData->AtaData.command_set_feature_enb_86
));
//
// Check if IDD is incomplete
//
if ((IdentifyData->AtaData.config & BIT2) != 0) {
return EFI_DEVICE_ERROR;
}
return EFI_SUCCESS;
}
/**
Enable/disable/skip PUIS of the disk according to policy.
@param PciIo The PCI IO protocol instance.
@param AhciRegisters The pointer to the EFI_AHCI_REGISTERS.
@param Port The number of port.
@param PortMultiplier The multiplier of port.
**/
EFI_STATUS
AhciPuisEnable (
IN EFI_PCI_IO_PROTOCOL *PciIo,
IN EFI_AHCI_REGISTERS *AhciRegisters,
IN UINT8 Port,
IN UINT8 PortMultiplier
)
{
EFI_STATUS Status;
Status = EFI_SUCCESS;
if (mAtaAtapiPolicy->PuisEnable == 0) {
Status = AhciDeviceSetFeature (PciIo, AhciRegisters, Port, PortMultiplier, ATA_SUB_CMD_DISABLE_PUIS, 0x00, ATA_ATAPI_TIMEOUT);
} else if (mAtaAtapiPolicy->PuisEnable == 1) {
Status = AhciDeviceSetFeature (PciIo, AhciRegisters, Port, PortMultiplier, ATA_SUB_CMD_ENABLE_PUIS, 0x00, ATA_ATAPI_TIMEOUT);
}
DEBUG ((
DEBUG_INFO,
"%a PUIS feature at port [%d] PortMultiplier [%d] - %r!\n",
(mAtaAtapiPolicy->PuisEnable == 0) ? "Disable" : (
(mAtaAtapiPolicy->PuisEnable == 1) ? "Enable" : "Skip"
),
Port,
PortMultiplier,
Status
));
return Status;
}
/**
Initialize ATA host controller at AHCI mode.
The function is designed to initialize ATA host controller.
@param[in] Instance A pointer to the ATA_ATAPI_PASS_THRU_INSTANCE instance.
**/
EFI_STATUS
EFIAPI
AhciModeInitialization (
IN ATA_ATAPI_PASS_THRU_INSTANCE *Instance
)
{
EFI_STATUS Status;
EFI_PCI_IO_PROTOCOL *PciIo;
EFI_IDE_CONTROLLER_INIT_PROTOCOL *IdeInit;
UINT32 Capability;
UINT8 MaxPortNumber;
UINT32 PortImplementBitMap;
EFI_AHCI_REGISTERS *AhciRegisters;
UINT8 Port;
DATA_64 Data64;
UINT32 Offset;
UINT32 Data;
EFI_IDENTIFY_DATA Buffer;
EFI_ATA_DEVICE_TYPE DeviceType;
EFI_ATA_COLLECTIVE_MODE *SupportedModes;
EFI_ATA_TRANSFER_MODE TransferMode;
UINT32 PhyDetectDelay;
UINT32 Value;
if (Instance == NULL) {
return EFI_INVALID_PARAMETER;
}
PciIo = Instance->PciIo;
IdeInit = Instance->IdeControllerInit;
Status = AhciReset (PciIo, EFI_AHCI_BUS_RESET_TIMEOUT);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
//
// Collect AHCI controller information
//
Capability = AhciReadReg (PciIo, EFI_AHCI_CAPABILITY_OFFSET);
//
// Make sure that GHC.AE bit is set before accessing any AHCI registers.
//
Value = AhciReadReg (PciIo, EFI_AHCI_GHC_OFFSET);
if ((Value & EFI_AHCI_GHC_ENABLE) == 0) {
AhciOrReg (PciIo, EFI_AHCI_GHC_OFFSET, EFI_AHCI_GHC_ENABLE);
}
//
// Enable 64-bit DMA support in the PCI layer if this controller
// supports it.
//
if ((Capability & EFI_AHCI_CAP_S64A) != 0) {
Status = PciIo->Attributes (
PciIo,
EfiPciIoAttributeOperationEnable,
EFI_PCI_IO_ATTRIBUTE_DUAL_ADDRESS_CYCLE,
NULL
);
if (EFI_ERROR (Status)) {
DEBUG ((
DEBUG_WARN,
"AhciModeInitialization: failed to enable 64-bit DMA on 64-bit capable controller (%r)\n",
Status
));
}
}
//
// Get the number of command slots per port supported by this HBA.
//
MaxPortNumber = (UINT8)((Capability & 0x1F) + 1);
//
// Get the bit map of those ports exposed by this HBA.
// It indicates which ports that the HBA supports are available for software to use.
//
PortImplementBitMap = AhciReadReg (PciIo, EFI_AHCI_PI_OFFSET);
AhciRegisters = &Instance->AhciRegisters;
Status = AhciCreateTransferDescriptor (PciIo, AhciRegisters);
if (EFI_ERROR (Status)) {
return EFI_OUT_OF_RESOURCES;
}
for (Port = 0; Port < EFI_AHCI_MAX_PORTS; Port++) {
if ((PortImplementBitMap & (((UINT32)BIT0) << Port)) != 0) {
//
// According to AHCI spec, MaxPortNumber should be equal or greater than the number of implemented ports.
//
if ((MaxPortNumber--) == 0) {
//
// Should never be here.
//
ASSERT (FALSE);
return EFI_SUCCESS;
}
IdeInit->NotifyPhase (IdeInit, EfiIdeBeforeChannelEnumeration, Port);
//
// Initialize FIS Base Address Register and Command List Base Address Register for use.
//
Data64.Uint64 = (UINTN)(AhciRegisters->AhciRFisPciAddr) + sizeof (EFI_AHCI_RECEIVED_FIS) * Port;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_FB;
AhciWriteReg (PciIo, Offset, Data64.Uint32.Lower32);
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_FBU;
AhciWriteReg (PciIo, Offset, Data64.Uint32.Upper32);
Data64.Uint64 = (UINTN)(AhciRegisters->AhciCmdListPciAddr);
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CLB;
AhciWriteReg (PciIo, Offset, Data64.Uint32.Lower32);
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CLBU;
AhciWriteReg (PciIo, Offset, Data64.Uint32.Upper32);
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
Data = AhciReadReg (PciIo, Offset);
if ((Data & EFI_AHCI_PORT_CMD_CPD) != 0) {
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_CMD_POD);
}
if ((Capability & EFI_AHCI_CAP_SSS) != 0) {
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_CMD_SUD);
}
//
// Disable aggressive power management.
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SCTL;
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_SCTL_IPM_INIT);
//
// Disable the reporting of the corresponding interrupt to system software.
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_IE;
AhciAndReg (PciIo, Offset, 0);
//
// Now inform the IDE Controller Init Module.
//
IdeInit->NotifyPhase (IdeInit, EfiIdeBusBeforeDevicePresenceDetection, Port);
//
// Enable FIS Receive DMA engine for the first D2H FIS.
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
AhciOrReg (PciIo, Offset, EFI_AHCI_PORT_CMD_FRE);
//
// Wait for the Phy to detect the presence of a device.
//
PhyDetectDelay = EFI_AHCI_BUS_PHY_DETECT_TIMEOUT;
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SSTS;
do {
Data = AhciReadReg (PciIo, Offset) & EFI_AHCI_PORT_SSTS_DET_MASK;
if ((Data == EFI_AHCI_PORT_SSTS_DET_PCE) || (Data == EFI_AHCI_PORT_SSTS_DET)) {
break;
}
MicroSecondDelay (1000);
PhyDetectDelay--;
} while (PhyDetectDelay > 0);
if (PhyDetectDelay == 0) {
//
// No device detected at this port.
// Clear PxCMD.SUD for those ports at which there are no device present.
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_CMD;
AhciAndReg (PciIo, Offset, (UINT32) ~(EFI_AHCI_PORT_CMD_SUD));
continue;
}
Status = AhciWaitDeviceReady (PciIo, Port);
if (EFI_ERROR (Status)) {
continue;
}
//
// When the first D2H register FIS is received, the content of PxSIG register is updated.
//
Offset = EFI_AHCI_PORT_START + Port * EFI_AHCI_PORT_REG_WIDTH + EFI_AHCI_PORT_SIG;
Status = AhciWaitMmioSet (
PciIo,
Offset,
0x0000FFFF,
0x00000101,
EFI_TIMER_PERIOD_SECONDS (16)
);
if (EFI_ERROR (Status)) {
continue;
}
Data = AhciReadReg (PciIo, Offset);
if ((Data & EFI_AHCI_ATAPI_SIG_MASK) == EFI_AHCI_ATAPI_DEVICE_SIG) {
Status = AhciIdentifyPacket (PciIo, AhciRegisters, Port, 0, &Buffer);
if (EFI_ERROR (Status)) {
continue;
}
DeviceType = EfiIdeCdrom;
} else if ((Data & EFI_AHCI_ATAPI_SIG_MASK) == EFI_AHCI_ATA_DEVICE_SIG) {
Status = AhciIdentify (PciIo, AhciRegisters, Port, 0, &Buffer);
if (EFI_ERROR (Status)) {
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_PERIPHERAL_FIXED_MEDIA | EFI_P_EC_NOT_DETECTED));
continue;
}
DEBUG ((
DEBUG_INFO,
"IDENTIFY DEVICE: [0] = %016x, [2] = %016x, [83] = %016x, [86] = %016x\n",
Buffer.AtaData.config,
Buffer.AtaData.specific_config,
Buffer.AtaData.command_set_supported_83,
Buffer.AtaData.command_set_feature_enb_86
));
if ((Buffer.AtaData.config & BIT2) != 0) {
//
// SpinUp disk if device reported incomplete IDENTIFY DEVICE.
//
Status = AhciSpinUpDisk (
PciIo,
AhciRegisters,
Port,
0,
&Buffer
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Spin up standby device failed - %r\n", Status));
continue;
}
}
DeviceType = EfiIdeHarddisk;
} else {
continue;
}
DEBUG ((
DEBUG_INFO,
"port [%d] port multitplier [%d] has a [%a]\n",
Port,
0,
DeviceType == EfiIdeCdrom ? "cdrom" : "harddisk"
));
//
// If the device is a hard disk, then try to enable S.M.A.R.T feature
//
if ((DeviceType == EfiIdeHarddisk) && PcdGetBool (PcdAtaSmartEnable)) {
AhciAtaSmartSupport (
PciIo,
AhciRegisters,
Port,
0,
&Buffer,
NULL
);
}
//
// Submit identify data to IDE controller init driver
//
IdeInit->SubmitData (IdeInit, Port, 0, &Buffer);
//
// Now start to config ide device parameter and transfer mode.
//
Status = IdeInit->CalculateMode (
IdeInit,
Port,
0,
&SupportedModes
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Calculate Mode Fail, Status = %r\n", Status));
continue;
}
//
// Set best supported PIO mode on this IDE device
//
if (SupportedModes->PioMode.Mode <= EfiAtaPioMode2) {
TransferMode.ModeCategory = EFI_ATA_MODE_DEFAULT_PIO;
} else {
TransferMode.ModeCategory = EFI_ATA_MODE_FLOW_PIO;
}
TransferMode.ModeNumber = (UINT8)(SupportedModes->PioMode.Mode);
//
// Set supported DMA mode on this IDE device. Note that UDMA & MDMA can't
// be set together. Only one DMA mode can be set to a device. If setting
// DMA mode operation fails, we can continue moving on because we only use
// PIO mode at boot time. DMA modes are used by certain kind of OS booting
//
if (SupportedModes->UdmaMode.Valid) {
TransferMode.ModeCategory = EFI_ATA_MODE_UDMA;
TransferMode.ModeNumber = (UINT8)(SupportedModes->UdmaMode.Mode);
} else if (SupportedModes->MultiWordDmaMode.Valid) {
TransferMode.ModeCategory = EFI_ATA_MODE_MDMA;
TransferMode.ModeNumber = (UINT8)SupportedModes->MultiWordDmaMode.Mode;
}
Status = AhciDeviceSetFeature (PciIo, AhciRegisters, Port, 0, 0x03, (UINT32)(*(UINT8 *)&TransferMode), ATA_ATAPI_TIMEOUT);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Set transfer Mode Fail, Status = %r\n", Status));
continue;
}
//
// Found a ATA or ATAPI device, add it into the device list.
//
CreateNewDeviceInfo (Instance, Port, 0xFFFF, DeviceType, &Buffer);
if (DeviceType == EfiIdeHarddisk) {
REPORT_STATUS_CODE (EFI_PROGRESS_CODE, (EFI_PERIPHERAL_FIXED_MEDIA | EFI_P_PC_ENABLE));
AhciEnableDevSlp (
PciIo,
AhciRegisters,
Port,
0,
&Buffer
);
}
//
// Enable/disable PUIS according to policy setting if PUIS is capable (Word[83].BIT5 is set).
//
if ((Buffer.AtaData.command_set_supported_83 & BIT5) != 0) {
Status = AhciPuisEnable (
PciIo,
AhciRegisters,
Port,
0
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "PUIS enable/disable failed, Status = %r\n", Status));
continue;
}
}
}
}
return EFI_SUCCESS;
}