Demos/Host/ClassDriver/StillImageHost/Lib/StillImageCommands.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, and distribute this software
  13   and its documentation for any purpose and without fee is hereby
  14   granted, provided that the above copyright notice appear in all
  15   copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Header file for StillImageCommands.c.
  34  */
  35
  36 #ifndef _STILL_IMAGE_COMMANDS_H_
  37 #define _STILL_IMAGE_COMMANDS_H_
  38
  39         /* Includes: */
  40                 #include <LUFA/Drivers/USB/USB.h>                        // USB Functionality
  41
  42                 #include "PIMACodes.h"
  43
  44         /* Macros: */
  45                 /** Pipe number of the Still Image data IN pipe */
  46                 #define SIMAGE_DATA_IN_PIPE            0x01
  47
  48                 /** Pipe number of the Still Image data OUT pipe */
  49                 #define SIMAGE_DATA_OUT_PIPE           0x02
  50
  51                 /** Pipe number of the Still Image events pipe */
  52                 #define SIMAGE_EVENTS_PIPE             0x03
  53
  54                 /** Timeout period between the issuing of a command to a device, and the reception of the first packet */
  55                 #define COMMAND_DATA_TIMEOUT_MS        5000
  56
  57                 /** Used in the DataLength field of a PIMA container, to give the total container size in bytes for
  58                  *  a command container.
  59                  *
  60                  *  \param params  Number of parameters which are to be sent in the Param field of the container
  61                  */
  62                 #define PIMA_COMMAND_SIZE(params)      ((sizeof(PIMA_SendBlock) - sizeof(PIMA_SendBlock.Params)) + \
  63                                                         (params * sizeof(PIMA_SendBlock.Params[0])))
  64
  65                 /** Used in the DataLength field of a PIMA container, to give the total container size in bytes for
  66                  *  a data container.
  67                  *
  68                  *  \param datalen  Length in bytes of the data in the container
  69                  */
  70                 #define PIMA_DATA_SIZE(datalen)        ((sizeof(PIMA_SendBlock) - sizeof(PIMA_SendBlock.Params)) + datalen)
  71
  72         /* Type Defines: */
  73                 /** Type define for a PIMA container, use to send commands and receive responses to and from an
  74                  *  attached Still Image device.
  75                  */
  76                 typedef struct
  77                 {
  78                         uint32_t DataLength; /**< Length of the container and data, in bytes */
  79                         uint16_t Type; /**< Container type, a value from the PIMA_Container_Types_t enum */
  80                         uint16_t Code; /**< Command, event or response code of the container */
  81                         uint32_t TransactionID; /**< Unique container ID to link blocks together */
  82                         uint32_t Params[4]; /**< Block parameters to be issued along with the block code (command blocks only) */
  83                 } PIMA_Container_t;
  84
  85         /* Enums: */
  86                 /** Enum for the possible PIMA contains types. */
  87                 enum PIMA_Container_Types_t
  88                 {
  89                         CType_Undefined         = 0, /**< Undefined container type */
  90                         CType_CommandBlock      = 1, /**< Command Block container type */
  91                         CType_DataBlock         = 2, /**< Data Block container type */
  92                         CType_ResponseBlock     = 3, /**< Response container type */
  93                         CType_EventBlock        = 4, /**< Event Block container type */
  94                 };
  95
  96         /* External Variables: */
  97                 extern PIMA_Container_t PIMA_SendBlock;
  98                 extern PIMA_Container_t PIMA_ReceivedBlock;
  99                 extern PIMA_Container_t PIMA_EventBlock;
 100
 101         /* Function Prototypes: */
 102                 void    SImage_SendBlockHeader(void);
 103                 uint8_t SImage_RecieveBlockHeader(void);
 104                 void    SImage_RecieveEventHeader(void);
 105                 void    SImage_SendData(void* Buffer, uint16_t Bytes);
 106                 uint8_t SImage_ReadData(void* Buffer, uint16_t Bytes);
 107                 bool    SImage_IsEventReceived(void);
 108                 uint8_t SImage_ClearPipeStall(const uint8_t EndpointNum);
 109
 110 #endif