system76-edk2/MdePkg/Library/BaseS3BootScriptLibNull/BootScriptLib.c

/** @file
  Null function implementation for EFI S3 boot script.

  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>

  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include <Base.h>
#include <Library/S3BootScriptLib.h>

/**
  Save I/O write to boot script

  @param Width  the width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Address The base address of the I/O operations.
  @param Count   The number of I/O operations to perform.
  @param Buffer  The source buffer from which to write data.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveIoWrite (
  IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN  UINT64                    Address,
  IN  UINTN                     Count,
  IN  VOID                      *Buffer
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for an I/O modify operation into a S3 boot script table

  @param Width   The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Address The base address of the I/O operations.
  @param Data    A pointer to the data to be OR-ed.
  @param DataMask  A pointer to the data mask to be AND-ed with the data read from the register

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveIoReadWrite (
  IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN  UINT64                    Address,
  IN  VOID                      *Data,
  IN  VOID                      *DataMask
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for a memory write operation into a specified boot script table.

  @param Width   The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Address The base address of the memory operations
  @param Count   The number of memory operations to perform.
  @param Buffer  The source buffer from which to write the data.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveMemWrite (
  IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN  UINT64                    Address,
  IN  UINTN                     Count,
  IN  VOID                      *Buffer
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for a memory modify operation into a specified boot script table.

  @param Width     The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Address   The base address of the memory operations. Address needs alignment if required
  @param Data      A pointer to the data to be OR-ed.
  @param DataMask  A pointer to the data mask to be AND-ed with the data read from the register.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveMemReadWrite (
  IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN  UINT64                    Address,
  IN  VOID                      *Data,
  IN  VOID                      *DataMask
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for a PCI configuration space write operation into a specified boot script table.

  @param Width     The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Address   The address within the PCI configuration space.
  @param Count     The number of PCI operations to perform.
  @param Buffer    The source buffer from which to write the data.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSavePciCfgWrite (
  IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN  UINT64                    Address,
  IN  UINTN                     Count,
  IN  VOID                      *Buffer
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for a PCI configuration space modify operation into a specified boot script table.

  @param Width     The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Address   The address within the PCI configuration space.
  @param Data      A pointer to the data to be OR-ed.The size depends on Width.
  @param DataMask    A pointer to the data mask to be AND-ed.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN__SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSavePciCfgReadWrite (
  IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN  UINT64                    Address,
  IN  VOID                      *Data,
  IN  VOID                      *DataMask
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for a PCI configuration space modify operation into a specified boot script table.

  @param Width     The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Segment   The PCI segment number for Address.
  @param Address   The address within the PCI configuration space.
  @param Count     The number of PCI operations to perform.
  @param Buffer    The source buffer from which to write the data.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSavePciCfg2Write (
  IN S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN UINT16                    Segment,
  IN UINT64                    Address,
  IN UINTN                     Count,
  IN VOID                      *Buffer
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for a PCI configuration space modify operation into a specified boot script table.

  @param Width     The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
  @param Segment   The PCI segment number for Address.
  @param Address   The address within the PCI configuration space.
  @param Data      A pointer to the data to be OR-ed. The size depends on Width.
  @param DataMask    A pointer to the data mask to be AND-ed.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSavePciCfg2ReadWrite (
  IN S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN UINT16                    Segment,
  IN UINT64                    Address,
  IN VOID                      *Data,
  IN VOID                      *DataMask
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for an SMBus command execution into a specified boot script table.

  @param  SmBusAddress  Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC.
  @param Operation      Indicates which particular SMBus protocol it will use to execute the SMBus
                        transactions.
  @param Length         A pointer to signify the number of bytes that this operation will do.
  @param Buffer         Contains the value of data to execute to the SMBUS slave device.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveSmbusExecute (
  IN  UINTN                SmBusAddress,
  IN  EFI_SMBUS_OPERATION  Operation,
  IN  UINTN                *Length,
  IN  VOID                 *Buffer
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for an execution stall on the processor into a specified boot script table.

  @param Duration   Duration in microseconds of the stall

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveStall (
  IN  UINTN  Duration
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for dispatching specified arbitrary code into a specified boot script table.

  @param EntryPoint   Entry point of the code to be dispatched.

  @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table do operation.
  @retval RETURN_SUCCESS            Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveDispatch (
  IN  VOID  *EntryPoint
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for dispatching specified arbitrary code into a specified boot script table.

  @param EntryPoint   Entry point of the code to be dispatched.
  @param Context      Argument to be passed into the EntryPoint of the code to be dispatched.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.
**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveDispatch2 (
  IN  VOID  *EntryPoint,
  IN  VOID  *Context
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for memory reads of the memory location and continues when the exit criteria is
  satisfied or after a defined duration.

  Please aware, below interface is different with PI specification, Vol 5:
  EFI_S3_SAVE_STATE_PROTOCOL.Write() for EFI_BOOT_SCRIPT_MEM_POLL_OPCODE.
  "Duration" below is microseconds, while "Delay" in PI specification means
  the number of 100ns units to poll.

  @param Width     The width of the memory operations.
  @param Address   The base address of the memory operations.
  @param BitMask   A pointer to the bit mask to be AND-ed with the data read from the register.
  @param BitValue  A pointer to the data value after to be Masked.
  @param Duration  Duration in microseconds of the stall.
  @param LoopTimes The times of the register polling.

  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.

**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveMemPoll (
  IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN  UINT64                    Address,
  IN  VOID                      *BitMask,
  IN  VOID                      *BitValue,
  IN  UINTN                     Duration,
  IN  UINT64                    LoopTimes
  )
{
  return RETURN_SUCCESS;
}

/**
  Store arbitrary information in the boot script table. This opcode is a no-op on dispatch and is only
  used for debugging script issues.

  @param InformationLength   Length of the data in bytes
  @param Information       Information to be logged in the boot scrpit

  @retval RETURN_UNSUPPORTED   If  entering runtime, this method will not support.
  @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
  @retval RETURN_SUCCESS           Opcode is added.

**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveInformation (
  IN  UINT32  InformationLength,
  IN  VOID    *Information
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for I/O reads the I/O location and continues when the exit criteria is satisfied or after a
  defined duration.

  @param  Width                 The width of the I/O operations.
  @param  Address               The base address of the I/O operations.
  @param  Data                  The comparison value used for the polling exit criteria.
  @param  DataMask              Mask used for the polling criteria. The bits in the bytes below Width which are zero
                                in Data are ignored when polling the memory address.
  @param  Delay                 The number of 100ns units to poll. Note that timer available may be of poorer
                                granularity so the delay may be longer.

 @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
 @retval RETURN_SUCCESS          Opcode is added.

**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveIoPoll (
  IN S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN UINT64                    Address,
  IN VOID                      *Data,
  IN VOID                      *DataMask,
  IN UINT64                    Delay
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for PCI configuration space reads and continues when the exit criteria is satisfied or
  after a defined duration.

  @param  Width                 The width of the I/O operations.
  @param  Address               The address within the PCI configuration space.
  @param  Data                  The comparison value used for the polling exit criteria.
  @param  DataMask              Mask used for the polling criteria. The bits in the bytes below Width which are zero
                                in Data are ignored when polling the memory address
  @param  Delay                 The number of 100ns units to poll. Note that timer available may be of poorer
                                granularity so the delay may be longer.

 @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
 @retval RETURN_SUCCESS           Opcode is added.

**/
RETURN_STATUS
EFIAPI
S3BootScriptSavePciPoll (
  IN S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN UINT64                    Address,
  IN VOID                      *Data,
  IN VOID                      *DataMask,
  IN UINT64                    Delay
  )
{
  return RETURN_SUCCESS;
}

/**
  Adds a record for PCI configuration space reads and continues when the exit criteria is satisfied or
  after a defined duration.

  @param  Width                 The width of the I/O operations.
  @param  Segment               The PCI segment number for Address.
  @param  Address               The address within the PCI configuration space.
  @param  Data                  The comparison value used for the polling exit criteria.
  @param  DataMask              Mask used for the polling criteria. The bits in the bytes below Width which are zero
                                in Data are ignored when polling the memory address
  @param  Delay                 The number of 100ns units to poll. Note that timer available may be of poorer
                                granularity so the delay may be longer.

 @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table do operation.
 @retval RETURN_SUCCESS           Opcode is added.
 @note   A known Limitations in the implementation: When interpreting the opcode  EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE_OPCODE
         EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE_OPCODE and EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL_OPCODE, the 'Segment' parameter is assumed as
         Zero, or else, assert.

**/
RETURN_STATUS
EFIAPI
S3BootScriptSavePci2Poll (
  IN S3_BOOT_SCRIPT_LIB_WIDTH  Width,
  IN UINT16                    Segment,
  IN UINT64                    Address,
  IN VOID                      *Data,
  IN VOID                      *DataMask,
  IN UINT64                    Delay
  )
{
  return RETURN_SUCCESS;
}

/**
  Save ASCII string information specified by Buffer to
  boot script with opcode EFI_BOOT_SCRIPT_INFORMATION_OPCODE

  @param  String         the ascii string to store into the S3 boot script table

  @retval RETURN_NOT_FOUND  BootScriptSave Protocol not exist.
  @retval RETURN_SUCCESS     BootScriptSave Protocol exist, always returns RETURN_SUCCESS

**/
RETURN_STATUS
EFIAPI
S3BootScriptSaveInformationAsciiString (
  IN  CONST CHAR8  *String
  )
{
  return RETURN_SUCCESS;
}

/**
  This is an function to close the S3 boot script table. The function could only be called in
  BOOT time phase. To comply with the Framework spec definition on
  EFI_BOOT_SCRIPT_SAVE_PROTOCOL.CloseTable(), this function will fulfill following things:
  1. Closes the specified boot script table
  2. It allocates a new memory pool to duplicate all the boot scripts in the specified table.
     Once this function is called, the table maintained by the library will be destroyed
     after it is copied into the allocated pool.
  3. Any attempts to add a script record after calling this function will cause a new table
     to be created by the library.
  4. The base address of the allocated pool will be returned in Address. Note that after
     using the boot script table, the CALLER is responsible for freeing the pool that is allocated
     by this function.

  In Spec PI1.1, this EFI_BOOT_SCRIPT_SAVE_PROTOCOL.CloseTable() is retired. By then it is not
  necessary to provide this API in BootScriptLib. To provides this API for now is only to meet
  the requirement from Framework Spec.

  If anyone does call CloseTable() on a real platform, then the caller is responsible for figuring out
  how to get the script to run on an S3 resume because the boot script maintained by the lib will be
  destroyed.

  @return the base address of the new copy of the boot script table.

**/
UINT8 *
EFIAPI
S3BootScriptCloseTable (
  VOID
  )
{
  return 0;
}

/**
  Executes the S3 boot script table.

  @param RETURN_SUCCESS           The boot script table was executed successfully.
  @param RETURN_UNSUPPORTED       Invalid script table or opcode.
**/
RETURN_STATUS
EFIAPI
S3BootScriptExecute (
  VOID
  )
{
  return RETURN_SUCCESS;
}

/**
  Move the last boot script entry to the position

  @param  BeforeOrAfter         Specifies whether the opcode is stored before (TRUE) or after (FALSE) the position
                                in the boot script table specified by Position. If Position is NULL or points to
                                NULL then the new opcode is inserted at the beginning of the table (if TRUE) or end
                                of the table (if FALSE).
  @param  Position              On entry, specifies the position in the boot script table where the opcode will be
                                inserted, either before or after, depending on BeforeOrAfter. On exit, specifies
                                the position of the inserted opcode in the boot script table.

  @retval RETURN_OUT_OF_RESOURCES  The table is not available.
  @retval RETURN_INVALID_PARAMETER The Position is not a valid position in the boot script table.
  @retval RETURN_SUCCESS           Opcode is inserted.
**/
RETURN_STATUS
EFIAPI
S3BootScriptMoveLastOpcode (
  IN     BOOLEAN  BeforeOrAfter,
  IN OUT VOID     **Position OPTIONAL
  )
{
  return RETURN_SUCCESS;
}

/**
  Find a label within the boot script table and, if not present, optionally create it.

  @param  BeforeOrAfter         Specifies whether the opcode is stored before (TRUE)
                                or after (FALSE) the position in the boot script table
                                specified by Position.
  @param  CreateIfNotFound      Specifies whether the label will be created if the label
                                does not exists (TRUE) or not (FALSE).
  @param  Position              On entry, specifies the position in the boot script table
                                where the opcode will be inserted, either before or after,
                                depending on BeforeOrAfter. On exit, specifies the position
                                of the inserted opcode in the boot script table.
  @param  Label                 Points to the label which will be inserted in the boot script table.

  @retval EFI_SUCCESS           The operation succeeded. A record was added into the
                                specified script table.
  @retval EFI_INVALID_PARAMETER The parameter is illegal or the given boot script is not supported.
                                If the opcode is unknow or not supported because of the PCD
                                Feature Flags.
  @retval EFI_OUT_OF_RESOURCES  There is insufficient memory to store the boot script.

**/
RETURN_STATUS
EFIAPI
S3BootScriptLabel (
  IN       BOOLEAN  BeforeOrAfter,
  IN       BOOLEAN  CreateIfNotFound,
  IN OUT   VOID     **Position OPTIONAL,
  IN CONST CHAR8    *Label
  )
{
  return RETURN_SUCCESS;
}

/**
  Compare two positions in the boot script table and return their relative position.
  @param  Position1             The positions in the boot script table to compare
  @param  Position2             The positions in the boot script table to compare
  @param  RelativePosition      On return, points to the result of the comparison

  @retval EFI_SUCCESS           The operation succeeded. A record was added into the
                                specified script table.
  @retval EFI_INVALID_PARAMETER The parameter is illegal or the given boot script is not supported.
                                If the opcode is unknow or not supported because of the PCD
                                Feature Flags.
  @retval EFI_OUT_OF_RESOURCES  There is insufficient memory to store the boot script.

**/
RETURN_STATUS
EFIAPI
S3BootScriptCompare (
  IN  UINT8  *Position1,
  IN  UINT8  *Position2,
  OUT UINTN  *RelativePosition
  )
{
  return RETURN_SUCCESS;
}