/** @file
Usb BOT Peim definition.

Copyright (c) 2006, 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 _PEI_USB_BOT_PEIM_H_
#define _PEI_USB_BOT_PEIM_H_

#include <PiPei.h>

#include <Ppi/UsbIo.h>
#include <Ppi/UsbHostController.h>
#include <Ppi/BlockIo.h>

#include <Library/DebugLib.h>

#include <IndustryStandard/Usb.h>
#include <IndustryStandard/Atapi.h>

#define PEI_FAT_MAX_USB_IO_PPI  127

/**
  Gets the count of block I/O devices that one specific block driver detects.

  This function is used for getting the count of block I/O devices that one 
  specific block driver detects.  To the PEI ATAPI driver, it returns the number
  of all the detected ATAPI devices it detects during the enumeration process. 
  To the PEI legacy floppy driver, it returns the number of all the legacy 
  devices it finds during its enumeration process. If no device is detected, 
  then the function will return zero.  
  
  @param[in]  PeiServices          General-purpose services that are available 
                                   to every PEIM.
  @param[in]  This                 Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI 
                                   instance.
  @param[out] NumberBlockDevices   The number of block I/O devices discovered.

  @retval     EFI_SUCCESS          Operation performed successfully.

**/
EFI_STATUS
EFIAPI
BotGetNumberOfBlockDevices (
  IN  EFI_PEI_SERVICES                         **PeiServices,
  IN  EFI_PEI_RECOVERY_BLOCK_IO_PPI            *This,
  OUT UINTN                                    *NumberBlockDevices
  );

/**
  Gets a block device's media information.

  This function will provide the caller with the specified block device's media 
  information. If the media changes, calling this function will update the media 
  information accordingly.

  @param[in]  PeiServices   General-purpose services that are available to every
                            PEIM
  @param[in]  This          Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
  @param[in]  DeviceIndex   Specifies the block device to which the function wants 
                            to talk. Because the driver that implements Block I/O 
                            PPIs will manage multiple block devices, the PPIs that 
                            want to talk to a single device must specify the 
                            device index that was assigned during the enumeration
                            process. This index is a number from one to 
                            NumberBlockDevices.
  @param[out] MediaInfo     The media information of the specified block media.  
                            The caller is responsible for the ownership of this 
                            data structure.

  @retval EFI_SUCCESS        Media information about the specified block device 
                             was obtained successfully.
  @retval EFI_DEVICE_ERROR   Cannot get the media information due to a hardware 
                             error.

**/
EFI_STATUS
EFIAPI
BotGetMediaInfo (
  IN  EFI_PEI_SERVICES                          **PeiServices,
  IN  EFI_PEI_RECOVERY_BLOCK_IO_PPI             *This,
  IN  UINTN                                     DeviceIndex,
  OUT EFI_PEI_BLOCK_IO_MEDIA                    *MediaInfo
  );

/**
  Reads the requested number of blocks from the specified block device.

  The function reads the requested number of blocks from the device. All the 
  blocks are read, or an error is returned. If there is no media in the device,
  the function returns EFI_NO_MEDIA.

  @param[in]  PeiServices   General-purpose services that are available to 
                            every PEIM.
  @param[in]  This          Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
  @param[in]  DeviceIndex   Specifies the block device to which the function wants 
                            to talk. Because the driver that implements Block I/O 
                            PPIs will manage multiple block devices, the PPIs that 
                            want to talk to a single device must specify the device 
                            index that was assigned during the enumeration process. 
                            This index is a number from one to NumberBlockDevices.
  @param[in]  StartLBA      The starting logical block address (LBA) to read from
                            on the device
  @param[in]  BufferSize    The size of the Buffer in bytes. This number must be
                            a multiple of the intrinsic block size of the device.
  @param[out] Buffer        A pointer to the destination buffer for the data.
                            The caller is responsible for the 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 attempting 
                                  to perform the read operation.
  @retval EFI_INVALID_PARAMETER   The read request contains LBAs that are not 
                                  valid, or the buffer is not properly aligned.
  @retval EFI_NO_MEDIA            There is no media in the device.
  @retval EFI_BAD_BUFFER_SIZE     The BufferSize parameter is not a multiple of
                                  the intrinsic block size of the device.

**/
EFI_STATUS
EFIAPI
BotReadBlocks (
  IN  EFI_PEI_SERVICES                          **PeiServices,
  IN  EFI_PEI_RECOVERY_BLOCK_IO_PPI             *This,
  IN  UINTN                                     DeviceIndex,
  IN  EFI_PEI_LBA                               StartLBA,
  IN  UINTN                                     BufferSize,
  OUT VOID                                      *Buffer
  );

/**
  UsbIo installation notification function. 
  
  This function finds out all the current USB IO PPIs in the system and add them
  into private data.

  @param  PeiServices      Indirect reference to the PEI Services Table.
  @param  NotifyDesc       Address of the notification descriptor data structure.
  @param  InvokePpi        Address of the PPI that was invoked.

  @retval EFI_SUCCESS      The function completes successfully.

**/
EFI_STATUS
EFIAPI
NotifyOnUsbIoPpi (
  IN  EFI_PEI_SERVICES                              **PeiServices,
  IN  EFI_PEI_NOTIFY_DESCRIPTOR                     *NotifyDesc,
  IN  VOID                                          *InvokePpi
  );

/**
  Initialize the usb bot device.

  @param[in]  PeiServices   General-purpose services that are available to every
                            PEIM.
  @param[in]  UsbIoPpi      Indicates the PEI_USB_IO_PPI instance.

  @retval EFI_SUCCESS       The usb bot device is initialized successfully.
  @retval Other             Failed to initialize media.

**/
EFI_STATUS
InitUsbBot (
  IN  EFI_PEI_SERVICES                          **PeiServices,
  IN  PEI_USB_IO_PPI                            *UsbIoPpi
  );

#define USBCDROM    1 // let the device type value equal to USBCDROM, which is defined by PI spec.
                      // Therefore the CdExpressPei module can do recovery on UsbCdrom.
#define USBFLOPPY   2 // for those that use ReadCapacity(0x25) command to retrieve media capacity
#define USBFLOPPY2  3 // for those that use ReadFormatCapacity(0x23) command to retrieve media capacity

//
// Bot device structure
//
#define PEI_BOT_DEVICE_SIGNATURE  SIGNATURE_32 ('U', 'B', 'O', 'T')
typedef struct {
  UINTN                           Signature;
  EFI_PEI_RECOVERY_BLOCK_IO_PPI   BlkIoPpi;
  EFI_PEI_PPI_DESCRIPTOR          BlkIoPpiList;
  EFI_PEI_BLOCK_IO_MEDIA          Media;
  PEI_USB_IO_PPI                  *UsbIoPpi;
  EFI_USB_INTERFACE_DESCRIPTOR    *BotInterface;
  EFI_USB_ENDPOINT_DESCRIPTOR     *BulkInEndpoint;
  EFI_USB_ENDPOINT_DESCRIPTOR     *BulkOutEndpoint;
  UINTN                           AllocateAddress;
  UINTN                           DeviceType;
  ATAPI_REQUEST_SENSE_DATA              *SensePtr;
} PEI_BOT_DEVICE;

#define PEI_BOT_DEVICE_FROM_THIS(a) CR (a, PEI_BOT_DEVICE, BlkIoPpi, PEI_BOT_DEVICE_SIGNATURE)

/**
  Send ATAPI command using BOT protocol.

  @param  PeiServices            The pointer of EFI_PEI_SERVICES.
  @param  PeiBotDev              The instance to PEI_BOT_DEVICE.
  @param  Command                The command to be sent to ATAPI device.
  @param  CommandSize            The length of the data to be sent.
  @param  DataBuffer             The pointer to the data.
  @param  BufferLength           The length of the data.
  @param  Direction              The direction of the data.
  @param  TimeOutInMilliSeconds  Indicates the maximum time, in millisecond, which the
                                 transfer is allowed to complete.

  @retval EFI_DEVICE_ERROR       Successful to get the status of device.
  @retval EFI_SUCCESS            Failed to get the status of device.

**/
EFI_STATUS
PeiAtapiCommand (
  IN  EFI_PEI_SERVICES            **PeiServices,
  IN  PEI_BOT_DEVICE              *PeiBotDev,
  IN  VOID                        *Command,
  IN  UINT8                       CommandSize,
  IN  VOID                        *DataBuffer,
  IN  UINT32                      BufferLength,
  IN  EFI_USB_DATA_DIRECTION      Direction,
  IN  UINT16                      TimeOutInMilliSeconds
  );

#endif
