LUFA/Drivers/USB/Class/Host/StillImage.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all 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  *  \brief Host mode driver for the library USB Still Image Class driver.
  33  *
  34  *  Host mode driver for the library USB Still Image Class driver.
  35  *
  36  *  \note This file should not be included directly. It is automatically included as needed by the USB module driver
  37  *        dispatch header located in LUFA/Drivers/USB.h.
  38  */
  39
  40 /** \ingroup Group_USBClassSI
  41  *  \defgroup Group_USBClassStillImageHost Still Image Class Host Mode Driver
  42  *
  43  *  \section Sec_Dependencies Module Source Dependencies
  44  *  The following files must be built with any user project that uses this module:
  45  *    - LUFA/Drivers/USB/Class/Host/StillImage.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
  46  *
  47  *  \section Sec_ModDescription Module Description
  48  *  Host Mode USB Class driver framework interface, for the Still Image USB Class driver.
  49  *
  50  *  @{
  51  */
  52
  53 #ifndef __SI_CLASS_HOST_H__
  54 #define __SI_CLASS_HOST_H__
  55
  56         /* Includes: */
  57                 #include "../../USB.h"
  58                 #include "../Common/StillImage.h"
  59
  60         /* Enable C linkage for C++ Compilers: */
  61                 #if defined(__cplusplus)
  62                         extern "C" {
  63                 #endif
  64
  65         /* Preprocessor Checks: */
  66                 #if !defined(__INCLUDE_FROM_SI_DRIVER)
  67                         #error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
  68                 #endif
  69
  70         /* Public Interface - May be used in end-application: */
  71                 /* Macros: */
  72                         /** Error code for some Still Image Host functions, indicating a logical (and not hardware) error. */
  73                         #define SI_ERROR_LOGICAL_CMD_FAILED              0x80
  74
  75                 /* Type Defines: */
  76                         /** \brief Still Image Class Host Mode Configuration and State Structure.
  77                          *
  78                          *  Class state structure. An instance of this structure should be made within the user application,
  79                          *  and passed to each of the Still Image class driver functions as the \c SIInterfaceInfo parameter. This
  80                          *  stores each Still Image interface's configuration and state information.
  81                          */
  82                         typedef struct
  83                         {
  84                                 const struct
  85                                 {
  86                                         uint8_t  DataINPipeNumber; /**< Pipe number of the Still Image interface's IN data pipe. */
  87                                         bool     DataINPipeDoubleBank; /**< Indicates if the Still Image interface's IN data pipe should use double banking. */
  88
  89                                         uint8_t  DataOUTPipeNumber; /**< Pipe number of the Still Image interface's OUT data pipe. */
  90                                         bool     DataOUTPipeDoubleBank; /**< Indicates if the Still Image interface's OUT data pipe should use double banking. */
  91
  92                                         uint8_t  EventsPipeNumber; /**< Pipe number of the Still Image interface's IN events endpoint, if used. */
  93                                         bool     EventsPipeDoubleBank; /**< Indicates if the Still Image interface's events data pipe should use double banking. */
  94                                 } Config; /**< Config data for the USB class interface within the device. All elements in this section
  95                                            *   <b>must</b> be set or the interface will fail to enumerate and operate correctly.
  96                                            */
  97                                 struct
  98                                 {
  99                                         bool     IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid
 100                                                             *   after \ref SI_Host_ConfigurePipes() is called and the Host state machine is in the
 101                                                             *   Configured state.
 102                                                             */
 103                                         uint8_t  InterfaceNumber; /**< Interface index of the Still Image interface within the attached device. */
 104
 105                                         uint16_t DataINPipeSize; /**< Size in bytes of the Still Image interface's IN data pipe. */
 106                                         uint16_t DataOUTPipeSize;  /**< Size in bytes of the Still Image interface's OUT data pipe. */
 107                                         uint16_t EventsPipeSize;  /**< Size in bytes of the Still Image interface's IN events pipe. */
 108
 109                                         bool IsSessionOpen; /**< Indicates if a PIMA session is currently open with the attached device. */
 110                                         uint32_t TransactionID; /**< Transaction ID for the next transaction to send to the device. */
 111                                 } State; /**< State data for the USB class interface within the device. All elements in this section
 112                                                   *   <b>may</b> be set to initial values, but may also be ignored to default to sane values when
 113                                                   *   the interface is enumerated.
 114                                                   */
 115                         } USB_ClassInfo_SI_Host_t;
 116
 117                 /* Enums: */
 118                         /** Enum for the possible error codes returned by the \ref SI_Host_ConfigurePipes() function. */
 119                         enum SI_Host_EnumerationFailure_ErrorCodes_t
 120                         {
 121                                 SI_ENUMERROR_NoError                    = 0, /**< Configuration Descriptor was processed successfully. */
 122                                 SI_ENUMERROR_InvalidConfigDescriptor    = 1, /**< The device returned an invalid Configuration Descriptor. */
 123                                 SI_ENUMERROR_NoCompatibleInterfaceFound = 2, /**< A compatible Still Image interface was not found in the device's
 124                                                                               *   Configuration Descriptor.
 125                                                                               */
 126                                 SI_ENUMERROR_PipeConfigurationFailed    = 3, /**< One or more pipes for the specified interface could not be configured correctly. */
 127                         };
 128
 129                 /* Function Prototypes: */
 130                         /** Host interface configuration routine, to configure a given Still Image host interface instance using the
 131                          *  Configuration Descriptor read from an attached USB device. This function automatically updates the given Still
 132                          *  Image Host instance's state values and configures the pipes required to communicate with the interface if it is
 133                          *  found within the device. This should be called once after the stack has enumerated the attached device, while
 134                          *  the host state machine is in the Addressed state.
 135                          *
 136                          *  \param[in,out] SIInterfaceInfo       Pointer to a structure containing a Still Image Class host configuration and state.
 137                          *  \param[in]     ConfigDescriptorSize  Length of the attached device's Configuration Descriptor.
 138                          *  \param[in]     ConfigDescriptorData  Pointer to a buffer containing the attached device's Configuration Descriptor.
 139                          *
 140                          *  \return A value from the \ref SI_Host_EnumerationFailure_ErrorCodes_t enum.
 141                          */
 142                         uint8_t SI_Host_ConfigurePipes(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
 143                                                        uint16_t ConfigDescriptorSize,
 144                                                        void* ConfigDescriptorData) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);
 145
 146                         /** Opens a new PIMA session with the attached device. This should be used before any session-orientated PIMA commands
 147                          *  are issued to the device. Only one session can be open at the one time.
 148                          *
 149                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 150                          *       call will fail.
 151                          *
 152                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 153                          *
 154                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
 155                          *          returned a logical command failure.
 156                          */
 157                         uint8_t SI_Host_OpenSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 158
 159                         /** Closes an already opened PIMA session with the attached device. This should be used after all session-orientated
 160                          *  PIMA commands have been issued to the device.
 161                          *
 162                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 163                          *       call will fail.
 164                          *
 165                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 166                          *
 167                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
 168                          *          returned a logical command failure.
 169                          */
 170                         uint8_t SI_Host_CloseSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 171
 172                         /** Sends a raw PIMA block header to the device, filling out the transaction ID automatically. This can be used to send
 173                          *  arbitrary PIMA blocks to the device with or without parameters.
 174                          *
 175                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 176                          *       call will fail.
 177                          *
 178                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 179                          *  \param[in]     PIMAHeader       Pointer to a PIMA container structure that is to be sent.
 180                          *
 181                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
 182                          */
 183                         uint8_t SI_Host_SendBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
 184                                                         PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1)
 185                                                         ATTR_NON_NULL_PTR_ARG(2);
 186
 187                         /** Receives a raw PIMA block header from the device. This can be used to receive arbitrary PIMA blocks from the device with
 188                          *  or without parameters.
 189                          *
 190                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 191                          *       call will fail.
 192                          *
 193                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 194                          *  \param[out]    PIMAHeader       Pointer to a PIMA container structure where the received block is to be stored.
 195                          *
 196                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
 197                          */
 198                         uint8_t SI_Host_ReceiveBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
 199                                                            PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1)
 200                                                            ATTR_NON_NULL_PTR_ARG(2);
 201
 202                         /** Sends a given PIMA command to the attached device, filling out the PIMA command header's Transaction ID automatically.
 203                          *
 204                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 205                          *       call will fail.
 206                          *
 207                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 208                          *  \param[in]     Operation        PIMA operation code to issue to the device.
 209                          *  \param[in]     TotalParams      Total number of 32-bit parameters to send to the device in the issued command block.
 210                          *  \param[in]     Params           Pointer to an array of 32-bit values containing the parameters to send in the command block.
 211                          *
 212                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
 213                          *          returned a logical command failure.
 214                          */
 215                         uint8_t SI_Host_SendCommand(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
 216                                                     const uint16_t Operation,
 217                                                     const uint8_t TotalParams,
 218                                                     uint32_t* const Params) ATTR_NON_NULL_PTR_ARG(1);
 219
 220                         /** Receives and checks a response block from the attached Still Image device, once a command has been issued and all data
 221                          *  associated with the command has been transferred.
 222                          *
 223                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 224                          *       call will fail.
 225                          *
 226                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 227                          *
 228                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
 229                          *          returned a logical command failure.
 230                          */
 231                         uint8_t SI_Host_ReceiveResponse(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 232
 233                         /** Indicates if the device has issued a PIMA event block to the host via the asynchronous events pipe.
 234                          *
 235                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 236                          *       call will fail.
 237                          *
 238                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 239                          *
 240                          *  \return Boolean \c true if an event is waiting to be read, \c false otherwise.
 241                          */
 242                         bool SI_Host_IsEventReceived(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
 243
 244                         /** Receives an asynchronous event block from the device via the asynchronous events pipe.
 245                          *
 246                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 247                          *       call will fail.
 248                          *
 249                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 250                          *  \param[out]    PIMAHeader       Pointer to a PIMA container structure where the event should be stored.
 251                          *
 252                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
 253                          *          returned a logical command failure.
 254                          */
 255                         uint8_t SI_Host_ReceiveEventHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
 256                                                            PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1)
 257                                                            ATTR_NON_NULL_PTR_ARG(2);
 258
 259                         /** Sends arbitrary data to the attached device, for use in the data phase of PIMA commands which require data
 260                          *  transfer beyond the regular PIMA command block parameters.
 261                          *
 262                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 263                          *       call will fail.
 264                          *
 265                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 266                          *  \param[in]     Buffer           Pointer to a buffer where the data to send has been stored.
 267                          *  \param[in]     Bytes            Length in bytes of the data in the buffer to send to the attached device.
 268                          *
 269                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
 270                          */
 271                         uint8_t SI_Host_SendData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
 272                                                  void* Buffer,
 273                                                  const uint16_t Bytes) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
 274
 275                         /** Receives arbitrary data from the attached device, for use in the data phase of PIMA commands which require data
 276                          *  transfer beyond the regular PIMA command block parameters.
 277                          *
 278                          *  \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
 279                          *       call will fail.
 280                          *
 281                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 282                          *  \param[out]    Buffer           Pointer to a buffer where the received data is to be stored.
 283                          *  \param[in]     Bytes            Length in bytes of the data to read.
 284                          *
 285                          *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
 286                          */
 287                         uint8_t SI_Host_ReadData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
 288                                                  void* Buffer,
 289                                                  const uint16_t Bytes) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
 290
 291                 /* Inline Functions: */
 292                         /** General management task for a given Still Image host class interface, required for the correct operation of the
 293                          *  interface. This should be called frequently in the main program loop, before the master USB management task
 294                          *  \ref USB_USBTask().
 295                          *
 296                          *  \param[in,out] SIInterfaceInfo  Pointer to a structure containing a Still Image Class host configuration and state.
 297                          */
 298                         static inline void SI_Host_USBTask(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
 299                         static inline void SI_Host_USBTask(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo)
 300                         {
 301                                 (void)SIInterfaceInfo;
 302                         }
 303
 304         /* Private Interface - For use in library only: */
 305         #if !defined(__DOXYGEN__)
 306                 /* Macros: */
 307                         #define SI_COMMAND_DATA_TIMEOUT_MS        10000
 308
 309                 /* Function Prototypes: */
 310                         #if defined(__INCLUDE_FROM_STILLIMAGE_HOST_C)
 311                                 static uint8_t DCOMP_SI_Host_NextSIInterface(void* const CurrentDescriptor)
 312                                                                              ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
 313                                 static uint8_t DCOMP_SI_Host_NextSIInterfaceEndpoint(void* const CurrentDescriptor)
 314                                                                                      ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
 315                         #endif
 316         #endif
 317
 318         /* Disable C linkage for C++ Compilers: */
 319                 #if defined(__cplusplus)
 320                         }
 321                 #endif
 322
 323 #endif
 324
 325 /** @} */
 326