text: /** @file 
    Defines library APIs used by modules to save EFI Boot Script Opcodes.  
    These OpCode will be restored by S3 related modules. 
    Note that some of the API defined in the Library class may not 
    be provided in the Framework version library instance, which means some of these 
    APIs cannot be used if the underlying firmware is Framework and not PI.
  
    Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
  
    This program and the accompanying materials
    are licensed and made available under the terms and conditions
    of the BSD License which accompanies this distribution.  The
    full text of the license may be found at
    http://opensource.org/licenses/bsd-license.php
  
    THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
    WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  
  **/
  
  #ifndef _S3_BOOT_SCRIPT_LIB_H_
  #define _S3_BOOT_SCRIPT_LIB_H_
  
  #include <Library/BaseLib.h>
  #include <IndustryStandard/SmBus.h>
  
  /**
    Macro that converts PCI Bus, PCI Device, PCI Function and PCI Register to an
    address that can be passed to the S3 Boot Script Library PCI functions.
  
    @param  Bus       PCI Bus number. Range 0..255.
    @param  Device    PCI Device number. Range 0..31.
    @param  Function  PCI Function number. Range 0..7.
    @param  Register  PCI Register number. Range 0..255 for PCI. Range 0..4095
                      for PCI Express.
  
    @return The encoded PCI address.
  
  **/
  #define S3_BOOT_SCRIPT_LIB_PCI_ADDRESS(Bus,Device,Function,Register)   \
    (UINT64) ( \
    (((UINTN) Bus) << 24) | \
    (((UINTN) Device) << 16) | \
    (((UINTN) Function) << 8) | \
    (((UINTN) (Register)) < 256 ? ((UINTN) (Register)) : (UINT64) (LShiftU64 ((UINT64) (Register), 32))))
   
  ///
  /// S3 Boot Script Width.
  ///
  typedef enum {
    S3BootScriptWidthUint8,        ///< 8-bit operation.
    S3BootScriptWidthUint16,       ///< 16-bit operation.
    S3BootScriptWidthUint32,       ///< 32-bit operation.  
    S3BootScriptWidthUint64,       ///< 64-bit operation.
    S3BootScriptWidthFifoUint8,    ///< 8-bit FIFO operation.
    S3BootScriptWidthFifoUint16,   ///< 16-bit FIFO operation.
    S3BootScriptWidthFifoUint32,   ///< 32-bit FIFO operation.
    S3BootScriptWidthFifoUint64,   ///< 64-bit FIFO operation.
    S3BootScriptWidthFillUint8,    ///< 8-bit Fill operation.
    S3BootScriptWidthFillUint16,   ///< 16-bit Fill operation.
    S3BootScriptWidthFillUint32,   ///< 32-bit Fill operation.
    S3BootScriptWidthFillUint64,   ///< 64-bit Fill operation.
    S3BootScriptWidthMaximum
  } S3_BOOT_SCRIPT_LIB_WIDTH;
  
  /**
    Save I/O write to boot script.
  
    @param[in] Width     The width of the I/O operations.
    @param[in] Address   The base address of the I/O operations.
    @param[in] Count     The number of I/O operations to perform.
    @param[in] Buffer    The source buffer from which to write data.
  
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveIoWrite (
    IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN  UINT64                    Address,
    IN  UINTN                     Count,
    IN  VOID                      *Buffer
    );
  
  /**
    Adds a record for an I/O modify operation into a S3 boot script table.
  
    @param[in] Width      The width of the I/O operations.
    @param[in] Address    The base address of the I/O operations.
    @param[in] Data       A pointer to the data to be OR-ed.
    @param[in] 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 to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveIoReadWrite (
    IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN  UINT64                    Address,
    IN  VOID                      *Data,
    IN  VOID                      *DataMask
    );
  
  /**
    Adds a record for a memory write operation into a specified boot script table.
  
    @param[in] Width     The width of the I/O operations.
    @param[in] Address   The base address of the memory operations
    @param[in] Count     The number of memory operations to perform.
    @param[in] Buffer    The source buffer from which to write the data.
  
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveMemWrite (
    IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN  UINT64                    Address,
    IN  UINTN                     Count,
    IN  VOID                      *Buffer
    );
  
  /**
    Adds a record for a memory modify operation into a specified boot script table.
  
    @param[in] Width      The width of the I/O operations.
    @param[in] Address    The base address of the memory operations. Address needs 
                          alignment, if required
    @param[in] Data       A pointer to the data to be OR-ed.
    @param[in] 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 to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveMemReadWrite (
    IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN  UINT64                    Address,
    IN  VOID                      *Data,
    IN  VOID                      *DataMask
    );
  
  /**
    Adds a record for a PCI configuration space write operation into a specified boot script table.
  
    @param[in] Width     The width of the I/O operations.
    @param[in] Address   The address within the PCI configuration space.
    @param[in] Count     The number of PCI operations to perform.
    @param[in] Buffer    The source buffer from which to write the data.
  
    @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table to perform 
                                     the operation.
    @retval RETURN_SUCCESS           The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSavePciCfgWrite (
    IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN  UINT64                    Address,
    IN  UINTN                     Count,
    IN  VOID                      *Buffer
    );
  
  /**
    Adds a record for a PCI configuration space modify operation into a specified boot script table.
  
    @param[in] Width      The width of the I/O operations.
    @param[in] Address    The address within the PCI configuration space.
    @param[in] Data       A pointer to the data to be OR-ed.The size depends on Width.
    @param[in] DataMask   A pointer to the data mask to be AND-ed.
  
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN__SUCCESS           The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSavePciCfgReadWrite (
    IN  S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN  UINT64                    Address,
    IN  VOID                      *Data,
    IN  VOID                      *DataMask
    );
  
  /**
    Adds a record for a PCI configuration space modify operation into a specified boot script table.
  
    @param[in] Width     The width of the I/O operations.
    @param[in] Segment   The PCI segment number for Address.
    @param[in] Address   The address within the PCI configuration space.
    @param[in] Count     The number of PCI operations to perform.
    @param[in] Buffer    The source buffer from which to write the data.
  
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSavePciCfg2Write (
    IN S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN UINT16                    Segment,
    IN UINT64                    Address,
    IN UINTN                     Count,
    IN VOID                      *Buffer
    );
  
  /**
    Adds a record for a PCI configuration space modify operation into a specified boot script table.
  
    @param[in] Width      The width of the I/O operations.
    @param[in] Segment    The PCI segment number for Address.
    @param[in] Address    The address within the PCI configuration space.
    @param[in] Data       A pointer to the data to be OR-ed. The size depends on Width.
    @param[in] DataMask   A pointer to the data mask to be AND-ed.
  
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSavePciCfg2ReadWrite (
    IN S3_BOOT_SCRIPT_LIB_WIDTH  Width,
    IN UINT16                    Segment,
    IN UINT64                    Address,
    IN VOID                      *Data,
    IN VOID                      *DataMask
    );
  
  /**
    Adds a record for an SMBus command execution into a specified boot script table.
  
    @param[in] SmBusAddress   Address that encodes the SMBUS Slave Address, SMBUS 
                              Command, SMBUS Data Length, and PEC.
    @param[in] Operation      Indicates which particular SMBus protocol it will use 
                              to execute the SMBus transactions.
    @param[in] Length         A pointer to signify the number of bytes that this 
                              operation will do.
    @param[in] Buffer         Contains the value of data to execute to the SMBUS 
                              slave device.
    
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveSmbusExecute (
    IN  UINTN                SmBusAddress, 
    IN  EFI_SMBUS_OPERATION  Operation,
    IN  UINTN                *Length,
    IN  VOID                 *Buffer
    );
  
  /**
    Adds a record for an execution stall on the processor into a specified boot script table.
  
    @param[in] Duration   The duration in microseconds of the stall.
    
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveStall (
    IN  UINTN  Duration
    );
  
  /**
    Adds a record for dispatching specified arbitrary code into a specified boot script table.
  
    @param[in] EntryPoint   The entry point of the code to be dispatched.
    @param[in] Context      The argument to be passed into the EntryPoint of the code 
                            to be dispatched.
    
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveDispatch2 (
    IN  VOID  *EntryPoint,
    IN  VOID  *Context
    );
  
  /**
    Adds a record for dispatching specified arbitrary code into a specified boot script table.
  
    @param[in] EntryPoint   The entry point of the code to be dispatched.
    
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveDispatch (
    IN  VOID *EntryPoint
    );
  
  /**
    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[in] Width       The width of the memory operations.
    @param[in] Address     The base address of the memory operations.
    @param[in] BitMask     A pointer to the bit mask to be AND-ed with the data read 
                           from the register.
    @param[in] BitValue    A pointer to the data value after to be Masked.
    @param[in] Duration    The duration in microseconds of the stall.
    @param[in] LoopTimes   The times of the register polling.
  
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was 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  UINTN                     LoopTimes
    );
  
  /**
    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[in] InformationLength   Length of the data in bytes
    @param[in] Information        Information to be logged in the boot scrpit
   
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveInformation (
    IN  UINT32  InformationLength, 
    IN  VOID    *Information
    );
  /**
    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              The 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 insufficient granularity, so the 
                                  delay may be longer.
  
   @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table to perform the 
                                    operation.
   @retval RETURN_SUCCESS           The opcode was added.
   @note   The FRAMEWORK version implementation does not support this API 
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveIoPoll (
    IN S3_BOOT_SCRIPT_LIB_WIDTH       Width,
    IN UINT64                     Address,
    IN VOID                      *Data,
    IN VOID                      *DataMask, 
    IN UINT64                     Delay   
    );
  
  /**
    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 insufficient granularity, so the 
                                  delay may be longer.
  
   @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table to perform the 
                                   operation.
   @retval RETURN_SUCCESS           The opcode was added.
   @note   The FRAMEWORK version implementation does not support this API 
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSavePciPoll (
     IN S3_BOOT_SCRIPT_LIB_WIDTH   Width,
     IN UINT64                     Address,
     IN VOID                      *Data,
     IN VOID                      *DataMask,
     IN UINT64                     Delay
    );
  /**
    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 insufficient granularity so the delay 
                                  may be longer.
  
    @retval RETURN_OUT_OF_RESOURCES  Not enough memory for the table to perform the 
                                     operation.
    @retval RETURN_SUCCESS           The opcode was 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.
           The FRAMEWORK version implementation does not support this API.
  
  **/
  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
    );
  /**
    Save ASCII string information specified by Buffer to boot script with opcode 
    EFI_BOOT_SCRIPT_INFORMATION_OPCODE.
  
    @param[in] String   The Null-terminated ASCII string to store into the S3 boot 
                        script table.
  
    @retval RETURN_OUT_OF_RESOURCES   Not enough memory for the table to perform 
                                      the operation.
    @retval RETURN_SUCCESS            The opcode was added.
  
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptSaveInformationAsciiString (
    IN  CONST CHAR8  *String
    );
  
  /**
    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. This 
    API is supplied here to meet the requirements of the 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
    );
  
  /**
    Executes the S3 boot script table.
  
    @retval RETURN_SUCCESS       The boot script table was executed successfully.
    @retval RETURN_UNSUPPORTED   Invalid script table or opcode.  
  
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptExecute (
    VOID
    );
  /**
    Move the last boot script entry to the position 
  
    @param  BeforeOrAfter         Specifies whether the opcode is stored before 
                                  (TRUE) or after (FALSE) the positionin 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           The opcode was inserted.
    @note   The FRAMEWORK version implementation does not support this API. 
  **/
  RETURN_STATUS
  EFIAPI
  S3BootScriptMoveLastOpcode (
    IN     BOOLEAN                        BeforeOrAfter,
    IN OUT VOID                         **Position OPTIONAL
    );
  /**
    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 positionof 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.
    @note   The FRAMEWORK version implementation does not support this API 
  
  **/
  RETURN_STATUS
  EFIAPI 
  S3BootScriptLabel (
    IN       BOOLEAN                      BeforeOrAfter,
    IN       BOOLEAN                      CreateIfNotFound,
    IN OUT   VOID                       **Position OPTIONAL,
    IN CONST CHAR8                       *Label
    );
  /**
    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 s
                                  upported because of the PCD Feature Flags.
    @retval EFI_OUT_OF_RESOURCES  There is insufficient memory to store the boot script.
    @note   The FRAMEWORK version implementation does not support this API 
  **/
  RETURN_STATUS
  EFIAPI 
  S3BootScriptCompare (
    IN  UINT8                       *Position1,
    IN  UINT8                       *Position2,
    OUT UINTN                       *RelativePosition
    );
  
  #endif
  