+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2011.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that the above copyright notice appear in
+ all copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+/** \file
+ * \brief Host mode driver for the library USB Still Image Class driver.
+ *
+ * Host mode driver for the library USB Still Image Class driver.
+ *
+ * \note This file should not be included directly. It is automatically included as needed by the USB module driver
+ * dispatch header located in LUFA/Drivers/USB.h.
+ */
+
+/** \ingroup Group_USBClassSI
+ * \defgroup Group_USBClassStillImageHost Still Image Class Host Mode Driver
+ *
+ * \section Sec_Dependencies Module Source Dependencies
+ * The following files must be built with any user project that uses this module:
+ * - LUFA/Drivers/USB/Class/Host/StillImage.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i>
+ *
+ * \section Sec_ModDescription Module Description
+ * Host Mode USB Class driver framework interface, for the Still Image USB Class driver.
+ *
+ * @{
+ */
+
+#ifndef __SI_CLASS_HOST_H__
+#define __SI_CLASS_HOST_H__
+
+ /* Includes: */
+ #include "../../USB.h"
+ #include "../Common/StillImageClassCommon.h"
+
+ /* Enable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ extern "C" {
+ #endif
+
+ /* Preprocessor Checks: */
+ #if !defined(__INCLUDE_FROM_SI_DRIVER)
+ #error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
+ #endif
+
+ /* Public Interface - May be used in end-application: */
+ /* Macros: */
+ /** Error code for some Still Image Host functions, indicating a logical (and not hardware) error. */
+ #define SI_ERROR_LOGICAL_CMD_FAILED 0x80
+
+ /* Type Defines: */
+ /** \brief Still Image Class Host Mode Configuration and State Structure.
+ *
+ * Class state structure. An instance of this structure should be made within the user application,
+ * and passed to each of the Still Image class driver functions as the \c SIInterfaceInfo parameter. This
+ * stores each Still Image interface's configuration and state information.
+ */
+ typedef struct
+ {
+ const struct
+ {
+ uint8_t DataINPipeNumber; /**< Pipe number of the Still Image interface's IN data pipe. */
+ bool DataINPipeDoubleBank; /**< Indicates if the Still Image interface's IN data pipe should use double banking. */
+
+ uint8_t DataOUTPipeNumber; /**< Pipe number of the Still Image interface's OUT data pipe. */
+ bool DataOUTPipeDoubleBank; /**< Indicates if the Still Image interface's OUT data pipe should use double banking. */
+
+ uint8_t EventsPipeNumber; /**< Pipe number of the Still Image interface's IN events endpoint, if used. */
+ bool EventsPipeDoubleBank; /**< Indicates if the Still Image interface's events data pipe should use double banking. */
+ } Config; /**< Config data for the USB class interface within the device. All elements in this section
+ * <b>must</b> be set or the interface will fail to enumerate and operate correctly.
+ */
+ struct
+ {
+ bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid
+ * after \ref SI_Host_ConfigurePipes() is called and the Host state machine is in the
+ * Configured state.
+ */
+ uint8_t InterfaceNumber; /**< Interface index of the Still Image interface within the attached device. */
+
+ uint16_t DataINPipeSize; /**< Size in bytes of the Still Image interface's IN data pipe. */
+ uint16_t DataOUTPipeSize; /**< Size in bytes of the Still Image interface's OUT data pipe. */
+ uint16_t EventsPipeSize; /**< Size in bytes of the Still Image interface's IN events pipe. */
+
+ bool IsSessionOpen; /**< Indicates if a PIMA session is currently open with the attached device. */
+ uint32_t TransactionID; /**< Transaction ID for the next transaction to send to the device. */
+ } State; /**< State data for the USB class interface within the device. All elements in this section
+ * <b>may</b> be set to initial values, but may also be ignored to default to sane values when
+ * the interface is enumerated.
+ */
+ } USB_ClassInfo_SI_Host_t;
+
+ /* Enums: */
+ /** Enum for the possible error codes returned by the \ref SI_Host_ConfigurePipes() function. */
+ enum SI_Host_EnumerationFailure_ErrorCodes_t
+ {
+ SI_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully. */
+ SI_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor. */
+ SI_ENUMERROR_NoCompatibleInterfaceFound = 2, /**< A compatible Still Image interface was not found in the device's
+ * Configuration Descriptor.
+ */
+ SI_ENUMERROR_PipeConfigurationFailed = 3, /**< One or more pipes for the specified interface could not be configured correctly. */
+ };
+
+ /* Function Prototypes: */
+ /** Host interface configuration routine, to configure a given Still Image host interface instance using the
+ * Configuration Descriptor read from an attached USB device. This function automatically updates the given Still
+ * Image Host instance's state values and configures the pipes required to communicate with the interface if it is
+ * found within the device. This should be called once after the stack has enumerated the attached device, while
+ * the host state machine is in the Addressed state.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ * \param[in] ConfigDescriptorSize Length of the attached device's Configuration Descriptor.
+ * \param[in] ConfigDescriptorData Pointer to a buffer containing the attached device's Configuration Descriptor.
+ *
+ * \return A value from the \ref SI_Host_EnumerationFailure_ErrorCodes_t enum.
+ */
+ uint8_t SI_Host_ConfigurePipes(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
+ uint16_t ConfigDescriptorSize,
+ void* ConfigDescriptorData) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);
+
+ /** Opens a new PIMA session with the attached device. This should be used before any session-orientated PIMA commands
+ * are issued to the device. Only one session can be open at the one time.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
+ * returned a logical command failure.
+ */
+ uint8_t SI_Host_OpenSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Closes an already opened PIMA session with the attached device. This should be used after all session-orientated
+ * PIMA commands have been issued to the device.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
+ * returned a logical command failure.
+ */
+ uint8_t SI_Host_CloseSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Sends a raw PIMA block header to the device, filling out the transaction ID automatically. This can be used to send
+ * arbitrary PIMA blocks to the device with or without parameters.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ * \param[in] PIMAHeader Pointer to a PIMA container structure that is to be sent.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t SI_Host_SendBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
+ PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1)
+ ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Receives a raw PIMA block header from the device. This can be used to receive arbitrary PIMA blocks from the device with
+ * or without parameters.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ * \param[out] PIMAHeader Pointer to a PIMA container structure where the received block is to be stored.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t SI_Host_ReceiveBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
+ PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1)
+ ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Sends a given PIMA command to the attached device, filling out the PIMA command header's Transaction ID automatically.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ * \param[in] Operation PIMA operation code to issue to the device.
+ * \param[in] TotalParams Total number of 32-bit parameters to send to the device in the issued command block.
+ * \param[in] Params Pointer to an array of 32-bit values containing the parameters to send in the command block.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
+ * returned a logical command failure.
+ */
+ uint8_t SI_Host_SendCommand(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
+ const uint16_t Operation,
+ const uint8_t TotalParams,
+ uint32_t* const Params) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Receives and checks a response block from the attached Still Image device, once a command has been issued and all data
+ * associated with the command has been transferred.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
+ * returned a logical command failure.
+ */
+ uint8_t SI_Host_ReceiveResponse(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Indicates if the device has issued a PIMA event block to the host via the asynchronous events pipe.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ *
+ * \return Boolean \c true if an event is waiting to be read, \c false otherwise.
+ */
+ bool SI_Host_IsEventReceived(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Receives an asynchronous event block from the device via the asynchronous events pipe.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ * \param[out] PIMAHeader Pointer to a PIMA container structure where the event should be stored.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device
+ * returned a logical command failure.
+ */
+ uint8_t SI_Host_ReceiveEventHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
+ PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1)
+ ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Sends arbitrary data to the attached device, for use in the data phase of PIMA commands which require data
+ * transfer beyond the regular PIMA command block parameters.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ * \param[in] Buffer Pointer to a buffer where the data to send has been stored.
+ * \param[in] Bytes Length in bytes of the data in the buffer to send to the attached device.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t SI_Host_SendData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
+ void* Buffer,
+ const uint16_t Bytes) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+ /** Receives arbitrary data from the attached device, for use in the data phase of PIMA commands which require data
+ * transfer beyond the regular PIMA command block parameters.
+ *
+ * \pre This function must only be called when the Host state machine is in the \ref HOST_STATE_Configured state or the
+ * call will fail.
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ * \param[out] Buffer Pointer to a buffer where the received data is to be stored.
+ * \param[in] Bytes Length in bytes of the data to read.
+ *
+ * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum.
+ */
+ uint8_t SI_Host_ReadData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
+ void* Buffer,
+ const uint16_t Bytes) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+ /* Inline Functions: */
+ /** General management task for a given Still Image host class interface, required for the correct operation of the
+ * interface. This should be called frequently in the main program loop, before the master USB management task
+ * \ref USB_USBTask().
+ *
+ * \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state.
+ */
+ static inline void SI_Host_USBTask(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE;
+ static inline void SI_Host_USBTask(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo)
+ {
+ (void)SIInterfaceInfo;
+ }
+
+ /* Private Interface - For use in library only: */
+ #if !defined(__DOXYGEN__)
+ /* Macros: */
+ #define SI_COMMAND_DATA_TIMEOUT_MS 10000
+
+ /* Function Prototypes: */
+ #if defined(__INCLUDE_FROM_STILLIMAGE_HOST_C)
+ static uint8_t DCOMP_SI_Host_NextSIInterface(void* const CurrentDescriptor)
+ ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
+ static uint8_t DCOMP_SI_Host_NextSIInterfaceEndpoint(void* const CurrentDescriptor)
+ ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1);
+ #endif
+ #endif
+
+ /* Disable C linkage for C++ Compilers: */
+ #if defined(__cplusplus)
+ }
+ #endif
+
+#endif
+
+/** @} */
+
projects / pub / lufa.git / blobdiff