/** @file
  Header file for EFI_BLOCK_IO_PROTOCOL interface.

Copyright (c) 2013 - 2016, 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 _EFI_NVME_BLOCKIO_H_
#define _EFI_NVME_BLOCKIO_H_

/**
  Reset the Block Device.

  @param  This                 Indicates a pointer to the calling context.
  @param  ExtendedVerification Driver may perform diagnostics on reset.

  @retval EFI_SUCCESS          The device was reset.
  @retval EFI_DEVICE_ERROR     The device is not functioning properly and could
                               not be reset.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoReset (
  IN  EFI_BLOCK_IO_PROTOCOL   *This,
  IN  BOOLEAN                 ExtendedVerification
  );

/**
  Read BufferSize bytes from Lba into Buffer.

  @param  This       Indicates a pointer to the calling context.
  @param  MediaId    Id of the media, changes every time the media is replaced.
  @param  Lba        The starting Logical Block Address to read from
  @param  BufferSize Size of Buffer, must be a multiple of device block size.
  @param  Buffer     A pointer to the destination buffer for the data. The caller is
                     responsible for either having implicit or explicit ownership of the buffer.

  @retval EFI_SUCCESS           The data was read correctly from the device.
  @retval EFI_DEVICE_ERROR      The device reported an error while performing the read.
  @retval EFI_NO_MEDIA          There is no media in the device.
  @retval EFI_MEDIA_CHANGED     The MediaId does not matched the current device.
  @retval EFI_BAD_BUFFER_SIZE   The Buffer was not a multiple of the block size of the device.
  @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
                                or the buffer is not on proper alignment.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoReadBlocks (
  IN  EFI_BLOCK_IO_PROTOCOL   *This,
  IN  UINT32                  MediaId,
  IN  EFI_LBA                 Lba,
  IN  UINTN                   BufferSize,
  OUT VOID                    *Buffer
  );

/**
  Write BufferSize bytes from Lba into Buffer.

  @param  This       Indicates a pointer to the calling context.
  @param  MediaId    The media ID that the write request is for.
  @param  Lba        The starting logical block address to be written. The caller is
                     responsible for writing to only legitimate locations.
  @param  BufferSize Size of Buffer, must be a multiple of device block size.
  @param  Buffer     A pointer to the source buffer for the data.

  @retval EFI_SUCCESS           The data was written correctly to the device.
  @retval EFI_WRITE_PROTECTED   The device can not be written to.
  @retval EFI_DEVICE_ERROR      The device reported an error while performing the write.
  @retval EFI_NO_MEDIA          There is no media in the device.
  @retval EFI_MEDIA_CHNAGED     The MediaId does not matched the current device.
  @retval EFI_BAD_BUFFER_SIZE   The Buffer was not a multiple of the block size of the device.
  @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
                                or the buffer is not on proper alignment.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoWriteBlocks (
  IN  EFI_BLOCK_IO_PROTOCOL   *This,
  IN  UINT32                  MediaId,
  IN  EFI_LBA                 Lba,
  IN  UINTN                   BufferSize,
  IN  VOID                    *Buffer
  );

/**
  Flush the Block Device.

  @param  This              Indicates a pointer to the calling context.

  @retval EFI_SUCCESS       All outstanding data was written to the device
  @retval EFI_DEVICE_ERROR  The device reported an error while writing back the data
  @retval EFI_NO_MEDIA      There is no media in the device.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoFlushBlocks (
  IN  EFI_BLOCK_IO_PROTOCOL   *This
  );

/**
  Reset the block device hardware.

  @param[in]  This                 Indicates a pointer to the calling context.
  @param[in]  ExtendedVerification Indicates that the driver may perform a more
                                   exhausive verfication operation of the
                                   device during reset.

  @retval EFI_SUCCESS          The device was reset.
  @retval EFI_DEVICE_ERROR     The device is not functioning properly and could
                               not be reset.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoResetEx (
  IN EFI_BLOCK_IO2_PROTOCOL  *This,
  IN BOOLEAN                 ExtendedVerification
  );

/**
  Read BufferSize bytes from Lba into Buffer.

  This function reads the requested number of blocks from the device. All the
  blocks are read, or an error is returned.
  If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and
  non-blocking I/O is being used, the Event associated with this request will
  not be signaled.

  @param[in]       This       Indicates a pointer to the calling context.
  @param[in]       MediaId    Id of the media, changes every time the media is
                              replaced.
  @param[in]       Lba        The starting Logical Block Address to read from.
  @param[in, out]  Token      A pointer to the token associated with the
                              transaction.
  @param[in]       BufferSize Size of Buffer, must be a multiple of device
                              block size.
  @param[out]      Buffer     A pointer to the destination buffer for the data.
                              The caller is responsible for either having
                              implicit or explicit ownership of the buffer.

  @retval EFI_SUCCESS           The read request was queued if Token->Event is
                                not NULL.The data was read correctly from the
                                device if the Token->Event is NULL.
  @retval EFI_DEVICE_ERROR      The device reported an error while performing
                                the read.
  @retval EFI_NO_MEDIA          There is no media in the device.
  @retval EFI_MEDIA_CHANGED     The MediaId is not for the current media.
  @retval EFI_BAD_BUFFER_SIZE   The BufferSize parameter is not a multiple of
                                the intrinsic block size of the device.
  @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
                                valid, or the buffer is not on proper
                                alignment.
  @retval EFI_OUT_OF_RESOURCES  The request could not be completed due to a
                                lack of resources.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoReadBlocksEx (
  IN     EFI_BLOCK_IO2_PROTOCOL *This,
  IN     UINT32                 MediaId,
  IN     EFI_LBA                Lba,
  IN OUT EFI_BLOCK_IO2_TOKEN    *Token,
  IN     UINTN                  BufferSize,
     OUT VOID                  *Buffer
  );

/**
  Write BufferSize bytes from Lba into Buffer.

  This function writes the requested number of blocks to the device. All blocks
  are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA,
  EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is
  being used, the Event associated with this request will not be signaled.

  @param[in]       This       Indicates a pointer to the calling context.
  @param[in]       MediaId    The media ID that the write request is for.
  @param[in]       Lba        The starting logical block address to be written.
                              The caller is responsible for writing to only
                              legitimate locations.
  @param[in, out]  Token      A pointer to the token associated with the
                              transaction.
  @param[in]       BufferSize Size of Buffer, must be a multiple of device
                              block size.
  @param[in]       Buffer     A pointer to the source buffer for the data.

  @retval EFI_SUCCESS           The write request was queued if Event is not
                                NULL.
                                The data was written correctly to the device if
                                the Event is NULL.
  @retval EFI_WRITE_PROTECTED   The device can not be written to.
  @retval EFI_NO_MEDIA          There is no media in the device.
  @retval EFI_MEDIA_CHNAGED     The MediaId does not matched the current
                                device.
  @retval EFI_DEVICE_ERROR      The device reported an error while performing
                                the write.
  @retval EFI_BAD_BUFFER_SIZE   The Buffer was not a multiple of the block size
                                of the device.
  @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not
                                valid, or the buffer is not on proper
                                alignment.
  @retval EFI_OUT_OF_RESOURCES  The request could not be completed due to a
                                lack of resources.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoWriteBlocksEx (
  IN     EFI_BLOCK_IO2_PROTOCOL  *This,
  IN     UINT32                 MediaId,
  IN     EFI_LBA                Lba,
  IN OUT EFI_BLOCK_IO2_TOKEN    *Token,
  IN     UINTN                  BufferSize,
  IN     VOID                   *Buffer
  );

/**
  Flush the Block Device.

  If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED
  is returned and non-blocking I/O is being used, the Event associated with
  this request will not be signaled.

  @param[in]      This     Indicates a pointer to the calling context.
  @param[in,out]  Token    A pointer to the token associated with the
                           transaction.

  @retval EFI_SUCCESS          The flush request was queued if Event is not
                               NULL.
                               All outstanding data was written correctly to
                               the device if the Event is NULL.
  @retval EFI_DEVICE_ERROR     The device reported an error while writting back
                               the data.
  @retval EFI_WRITE_PROTECTED  The device cannot be written to.
  @retval EFI_NO_MEDIA         There is no media in the device.
  @retval EFI_MEDIA_CHANGED    The MediaId is not for the current media.
  @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack
                               of resources.

**/
EFI_STATUS
EFIAPI
NvmeBlockIoFlushBlocksEx (
  IN     EFI_BLOCK_IO2_PROTOCOL   *This,
  IN OUT EFI_BLOCK_IO2_TOKEN      *Token
  );

/**
  Send a security protocol command to a device that receives data and/or the result
  of one or more commands sent by SendData.

  The ReceiveData function sends a security protocol command to the given MediaId.
  The security protocol command sent is defined by SecurityProtocolId and contains
  the security protocol specific data SecurityProtocolSpecificData. The function
  returns the data from the security protocol command in PayloadBuffer.

  For devices supporting the SCSI command set, the security protocol command is sent
  using the SECURITY PROTOCOL IN command defined in SPC-4.

  For devices supporting the ATA command set, the security protocol command is sent
  using one of the TRUSTED RECEIVE commands defined in ATA8-ACS if PayloadBufferSize
  is non-zero.

  If the PayloadBufferSize is zero, the security protocol command is sent using the
  Trusted Non-Data command defined in ATA8-ACS.

  If PayloadBufferSize is too small to store the available data from the security
  protocol command, the function shall copy PayloadBufferSize bytes into the
  PayloadBuffer and return EFI_WARN_BUFFER_TOO_SMALL.

  If PayloadBuffer or PayloadTransferSize is NULL and PayloadBufferSize is non-zero,
  the function shall return EFI_INVALID_PARAMETER.

  If the given MediaId does not support security protocol commands, the function shall
  return EFI_UNSUPPORTED. If there is no media in the device, the function returns
  EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the device,
  the function returns EFI_MEDIA_CHANGED.

  If the security protocol fails to complete within the Timeout period, the function
  shall return EFI_TIMEOUT.

  If the security protocol command completes without an error, the function shall
  return EFI_SUCCESS. If the security protocol command completes with an error, the
  function shall return EFI_DEVICE_ERROR.

  @param  This                         Indicates a pointer to the calling context.
  @param  MediaId                      ID of the medium to receive data from.
  @param  Timeout                      The timeout, in 100ns units, to use for the execution
                                       of the security protocol command. A Timeout value of 0
                                       means that this function will wait indefinitely for the
                                       security protocol command to execute. If Timeout is greater
                                       than zero, then this function will return EFI_TIMEOUT
                                       if the time required to execute the receive data command
                                       is greater than Timeout.
  @param  SecurityProtocolId           The value of the "Security Protocol" parameter of
                                       the security protocol command to be sent.
  @param  SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
                                       of the security protocol command to be sent.
  @param  PayloadBufferSize            Size in bytes of the payload data buffer.
  @param  PayloadBuffer                A pointer to a destination buffer to store the security
                                       protocol command specific payload data for the security
                                       protocol command. The caller is responsible for having
                                       either implicit or explicit ownership of the buffer.
  @param  PayloadTransferSize          A pointer to a buffer to store the size in bytes of the
                                       data written to the payload data buffer.

  @retval EFI_SUCCESS                  The security protocol command completed successfully.
  @retval EFI_WARN_BUFFER_TOO_SMALL    The PayloadBufferSize was too small to store the available
                                       data from the device. The PayloadBuffer contains the truncated data.
  @retval EFI_UNSUPPORTED              The given MediaId does not support security protocol commands.
  @retval EFI_DEVICE_ERROR             The security protocol command completed with an error.
  @retval EFI_NO_MEDIA                 There is no media in the device.
  @retval EFI_MEDIA_CHANGED            The MediaId is not for the current media.
  @retval EFI_INVALID_PARAMETER        The PayloadBuffer or PayloadTransferSize is NULL and
                                       PayloadBufferSize is non-zero.
  @retval EFI_TIMEOUT                  A timeout occurred while waiting for the security
                                       protocol command to execute.

**/
EFI_STATUS
EFIAPI
NvmeStorageSecurityReceiveData (
  IN  EFI_STORAGE_SECURITY_COMMAND_PROTOCOL   *This,
  IN  UINT32                                  MediaId,
  IN  UINT64                                  Timeout,
  IN  UINT8                                   SecurityProtocolId,
  IN  UINT16                                  SecurityProtocolSpecificData,
  IN  UINTN                                   PayloadBufferSize,
  OUT VOID                                    *PayloadBuffer,
  OUT UINTN                                   *PayloadTransferSize
  );

/**
  Send a security protocol command to a device.

  The SendData function sends a security protocol command containing the payload
  PayloadBuffer to the given MediaId. The security protocol command sent is
  defined by SecurityProtocolId and contains the security protocol specific data
  SecurityProtocolSpecificData. If the underlying protocol command requires a
  specific padding for the command payload, the SendData function shall add padding
  bytes to the command payload to satisfy the padding requirements.

  For devices supporting the SCSI command set, the security protocol command is sent
  using the SECURITY PROTOCOL OUT command defined in SPC-4.

  For devices supporting the ATA command set, the security protocol command is sent
  using one of the TRUSTED SEND commands defined in ATA8-ACS if PayloadBufferSize
  is non-zero. If the PayloadBufferSize is zero, the security protocol command is
  sent using the Trusted Non-Data command defined in ATA8-ACS.

  If PayloadBuffer is NULL and PayloadBufferSize is non-zero, the function shall
  return EFI_INVALID_PARAMETER.

  If the given MediaId does not support security protocol commands, the function
  shall return EFI_UNSUPPORTED. If there is no media in the device, the function
  returns EFI_NO_MEDIA. If the MediaId is not the ID for the current media in the
  device, the function returns EFI_MEDIA_CHANGED.

  If the security protocol fails to complete within the Timeout period, the function
  shall return EFI_TIMEOUT.

  If the security protocol command completes without an error, the function shall return
  EFI_SUCCESS. If the security protocol command completes with an error, the function
  shall return EFI_DEVICE_ERROR.

  @param  This                         Indicates a pointer to the calling context.
  @param  MediaId                      ID of the medium to receive data from.
  @param  Timeout                      The timeout, in 100ns units, to use for the execution
                                       of the security protocol command. A Timeout value of 0
                                       means that this function will wait indefinitely for the
                                       security protocol command to execute. If Timeout is greater
                                       than zero, then this function will return EFI_TIMEOUT
                                       if the time required to execute the receive data command
                                       is greater than Timeout.
  @param  SecurityProtocolId           The value of the "Security Protocol" parameter of
                                       the security protocol command to be sent.
  @param  SecurityProtocolSpecificData The value of the "Security Protocol Specific" parameter
                                       of the security protocol command to be sent.
  @param  PayloadBufferSize            Size in bytes of the payload data buffer.
  @param  PayloadBuffer                A pointer to a destination buffer to store the security
                                       protocol command specific payload data for the security
                                       protocol command.

  @retval EFI_SUCCESS                  The security protocol command completed successfully.
  @retval EFI_UNSUPPORTED              The given MediaId does not support security protocol commands.
  @retval EFI_DEVICE_ERROR             The security protocol command completed with an error.
  @retval EFI_NO_MEDIA                 There is no media in the device.
  @retval EFI_MEDIA_CHANGED            The MediaId is not for the current media.
  @retval EFI_INVALID_PARAMETER        The PayloadBuffer is NULL and PayloadBufferSize is non-zero.
  @retval EFI_TIMEOUT                  A timeout occurred while waiting for the security
                                       protocol command to execute.

**/
EFI_STATUS
EFIAPI
NvmeStorageSecuritySendData (
  IN EFI_STORAGE_SECURITY_COMMAND_PROTOCOL    *This,
  IN UINT32                                   MediaId,
  IN UINT64                                   Timeout,
  IN UINT8                                    SecurityProtocolId,
  IN UINT16                                   SecurityProtocolSpecificData,
  IN UINTN                                    PayloadBufferSize,
  IN VOID                                     *PayloadBuffer
  );

#endif