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332 lines
17 KiB
332 lines
17 KiB
/* |
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LUFA Library |
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Copyright (C) Dean Camera, 2010. |
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dean [at] fourwalledcubicle [dot] com |
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www.fourwalledcubicle.com |
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*/ |
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/* |
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) |
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Permission to use, copy, modify, distribute, and sell this |
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software and its documentation for any purpose is hereby granted |
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without fee, provided that the above copyright notice appear in |
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all copies and that both that the copyright notice and this |
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permission notice and warranty disclaimer appear in supporting |
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documentation, and that the name of the author not be used in |
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advertising or publicity pertaining to distribution of the |
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software without specific, written prior permission. |
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The author disclaim all warranties with regard to this |
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software, including all implied warranties of merchantability |
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and fitness. In no event shall the author be liable for any |
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special, indirect or consequential damages or any damages |
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whatsoever resulting from loss of use, data or profits, whether |
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in an action of contract, negligence or other tortious action, |
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arising out of or in connection with the use or performance of |
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this software. |
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*/ |
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/** \file |
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* \brief Host mode driver for the library USB Still Image Class driver. |
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* |
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* Host mode driver for the library USB Still Image Class driver. |
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* |
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* \note This file should not be included directly. It is automatically included as needed by the class driver |
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* dispatch header located in LUFA/Drivers/USB/Class/StillImage.h. |
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*/ |
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/** \ingroup Group_USBClassSI |
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* @defgroup Group_USBClassStillImageHost Still Image Class Host Mode Driver |
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* |
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* \section Sec_Dependencies Module Source Dependencies |
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* The following files must be built with any user project that uses this module: |
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* - LUFA/Drivers/USB/Class/Host/StillImage.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i> |
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* |
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* \section Module Description |
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* Host Mode USB Class driver framework interface, for the Still Image USB Class driver. |
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* |
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* @{ |
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*/ |
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#ifndef __SI_CLASS_HOST_H__ |
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#define __SI_CLASS_HOST_H__ |
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/* Includes: */ |
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#include "../../USB.h" |
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#include "../Common/StillImage.h" |
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/* Enable C linkage for C++ Compilers: */ |
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#if defined(__cplusplus) |
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extern "C" { |
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#endif |
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/* Preprocessor Checks: */ |
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#if !defined(__INCLUDE_FROM_SI_DRIVER) |
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#error Do not include this file directly. Include LUFA/Drivers/Class/StillImage.h instead. |
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#endif |
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/* Public Interface - May be used in end-application: */ |
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/* Macros: */ |
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/** Error code for some Still Image Host functions, indicating a logical (and not hardware) error. */ |
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#define SI_ERROR_LOGICAL_CMD_FAILED 0x80 |
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/* Type Defines: */ |
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/** \brief Still Image Class Host Mode Configuration and State Structure. |
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* |
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* Class state structure. An instance of this structure should be made within the user application, |
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* and passed to each of the Still Image class driver functions as the SIInterfaceInfo parameter. This |
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* stores each Still Image interface's configuration and state information. |
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*/ |
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typedef struct |
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{ |
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const struct |
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{ |
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uint8_t DataINPipeNumber; /**< Pipe number of the Still Image interface's IN data pipe. */ |
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bool DataINPipeDoubleBank; /**< Indicates if the Still Image interface's IN data pipe should use double banking. */ |
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uint8_t DataOUTPipeNumber; /**< Pipe number of the Still Image interface's OUT data pipe. */ |
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bool DataOUTPipeDoubleBank; /**< Indicates if the Still Image interface's OUT data pipe should use double banking. */ |
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uint8_t EventsPipeNumber; /**< Pipe number of the Still Image interface's IN events endpoint, if used. */ |
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bool EventsPipeDoubleBank; /**< Indicates if the Still Image interface's events data pipe should use double banking. */ |
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} Config; /**< Config data for the USB class interface within the device. All elements in this section |
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* <b>must</b> be set or the interface will fail to enumerate and operate correctly. |
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*/ |
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struct |
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{ |
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bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid |
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* after \ref SImage_Host_ConfigurePipes() is called and the Host state machine is in the |
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* Configured state. |
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*/ |
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uint16_t DataINPipeSize; /**< Size in bytes of the Still Image interface's IN data pipe. */ |
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uint16_t DataOUTPipeSize; /**< Size in bytes of the Still Image interface's OUT data pipe. */ |
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uint16_t EventsPipeSize; /**< Size in bytes of the Still Image interface's IN events pipe. */ |
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bool IsSessionOpen; /**< Indicates if a PIMA session is currently open with the attached device. */ |
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uint32_t TransactionID; /**< Transaction ID for the next transaction to send to the device. */ |
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} State; /**< State data for the USB class interface within the device. All elements in this section |
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* <b>may</b> be set to initial values, but may also be ignored to default to sane values when |
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* the interface is enumerated. |
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*/ |
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} USB_ClassInfo_SI_Host_t; |
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/* Enums: */ |
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/** Enum for the possible error codes returned by the \ref SImage_Host_ConfigurePipes() function. */ |
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enum SIHost_EnumerationFailure_ErrorCodes_t |
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{ |
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SI_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully. */ |
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SI_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor. */ |
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SI_ENUMERROR_NoSIInterfaceFound = 2, /**< A compatible Still Image interface was not found in the device's |
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* Configuration Descriptor. |
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*/ |
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SI_ENUMERROR_EndpointsNotFound = 3, /**< Compatible Still Image data endpoints were not found in the |
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* device's Still Image interface. |
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*/ |
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}; |
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/* Function Prototypes: */ |
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/** Host interface configuration routine, to configure a given Still Image host interface instance using the |
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* Configuration Descriptor read from an attached USB device. This function automatically updates the given Still |
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* Image Host instance's state values and configures the pipes required to communicate with the interface if it is |
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* found within the device. This should be called once after the stack has enumerated the attached device, while |
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* the host state machine is in the Addressed state. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* \param[in] ConfigDescriptorSize Length of the attached device's Configuration Descriptor. |
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* \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor. |
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* |
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* \return A value from the \ref SIHost_EnumerationFailure_ErrorCodes_t enum. |
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*/ |
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uint8_t SImage_Host_ConfigurePipes(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, |
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uint16_t ConfigDescriptorSize, |
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void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3); |
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/** Opens a new PIMA session with the attached device. This should be used before any session-orientated PIMA commands |
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* are issued to the device. Only one session can be open at the one time. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device |
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* returned a logical command failure. |
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*/ |
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uint8_t SImage_Host_OpenSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); |
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/** Closes an already opened PIMA session with the attached device. This should be used after all session-orientated |
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* PIMA commands have been issued to the device. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device |
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* returned a logical command failure. |
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*/ |
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uint8_t SImage_Host_CloseSession(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); |
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/** Sends a raw PIMA block header to the device, filling out the transaction ID automatically. This can be used to send |
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* arbitrary PIMA blocks to the device with or without parameters. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* \param[in] PIMAHeader Pointer to a PIMA container structure that is to be sent. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. |
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*/ |
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uint8_t SImage_Host_SendBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, |
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SI_PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1) |
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ATTR_NON_NULL_PTR_ARG(2); |
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/** Receives a raw PIMA block header to the device. This can be used to receive arbitrary PIMA blocks from the device with |
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* or without parameters. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* \param[out] PIMAHeader Pointer to a PIMA container structure where the received block is to be stored. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. |
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*/ |
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uint8_t SImage_Host_ReceiveBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, |
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SI_PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1) |
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ATTR_NON_NULL_PTR_ARG(2); |
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/** Sends a given PIMA command to the attached device, filling out the PIMA command header's Transaction ID automatically. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* \param[in] Operation PIMA operation code to issue to the device. |
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* \param[in] TotalParams Total number of 32-bit parameters to send to the device in the issued command block. |
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* \param[in] Params Pointer to an array of 32-bit values containing the parameters to send in the command block. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device |
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* returned a logical command failure. |
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*/ |
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uint8_t SImage_Host_SendCommand(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, |
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const uint16_t Operation, |
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const uint8_t TotalParams, |
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uint32_t* const Params) ATTR_NON_NULL_PTR_ARG(1); |
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/** Receives and checks a response block from the attached PIMA device, once a command has been issued and all data |
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* associated with the command has been transferred. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device |
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* returned a logical command failure. |
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*/ |
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uint8_t SImage_Host_ReceiveResponse(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); |
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/** Indicates if the device has issued a PIMA event block to the host via the asynchronous events pipe. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* |
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* \return Boolean true if an event is waiting to be read, false otherwise. |
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*/ |
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bool SImage_Host_IsEventReceived(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); |
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/** Receives an asynchronous event block from the device via the asynchronous events pipe. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* \param[out] PIMAHeader Pointer to a PIMA container structure where the event should be stored. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum, or \ref SI_ERROR_LOGICAL_CMD_FAILED if the device |
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* returned a logical command failure. |
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*/ |
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uint8_t SImage_Host_ReceiveEventHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, |
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SI_PIMA_Container_t* const PIMAHeader) ATTR_NON_NULL_PTR_ARG(1) |
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ATTR_NON_NULL_PTR_ARG(2); |
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/** Sends arbitrary data to the attached device, for use in the data phase of PIMA commands which require data |
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* transfer beyond the regular PIMA command block parameters. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* \param[in] Buffer Pointer to a buffer where the data to send has been stored. |
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* \param[in] Bytes Length in bytes of the data in the buffer to send to the attached device. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. |
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*/ |
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uint8_t SImage_Host_SendData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, |
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void* Buffer, |
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const uint16_t Bytes) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); |
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/** Receives arbitrary data from the attached device, for use in the data phase of PIMA commands which require data |
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* transfer beyond the regular PIMA command block parameters. |
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* |
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* \pre This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the |
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* call will fail. |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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* \param[out] Buffer Pointer to a buffer where the received data is to be stored. |
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* \param[in] Bytes Length in bytes of the data to read. |
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* |
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* \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. |
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*/ |
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uint8_t SImage_Host_ReadData(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo, |
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void* Buffer, |
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const uint16_t Bytes) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); |
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/* Inline Functions: */ |
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/** General management task for a given Still Image host class interface, required for the correct operation of the |
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* interface. This should be called frequently in the main program loop, before the master USB management task |
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* \ref USB_USBTask(). |
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* |
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* \param[in,out] SIInterfaceInfo Pointer to a structure containing a Still Image Class host configuration and state. |
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*/ |
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static inline void SImage_Host_USBTask(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); |
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static inline void SImage_Host_USBTask(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo) |
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{ |
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(void)SIInterfaceInfo; |
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} |
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/* Private Interface - For use in library only: */ |
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#if !defined(__DOXYGEN__) |
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/* Macros: */ |
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#define STILL_IMAGE_CLASS 0x06 |
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#define STILL_IMAGE_SUBCLASS 0x01 |
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#define STILL_IMAGE_PROTOCOL 0x01 |
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#define SI_FOUND_EVENTS_IN (1 << 0) |
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#define SI_FOUND_DATAPIPE_IN (1 << 1) |
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#define SI_FOUND_DATAPIPE_OUT (1 << 2) |
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#define COMMAND_DATA_TIMEOUT_MS 10000 |
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/* Function Prototypes: */ |
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#if defined(__INCLUDE_FROM_SI_CLASS_HOST_C) |
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static uint8_t DCOMP_SI_Host_NextSIInterface(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); |
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static uint8_t DCOMP_SI_Host_NextSIInterfaceEndpoint(void* const CurrentDescriptor) ATTR_NON_NULL_PTR_ARG(1); |
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#endif |
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#endif |
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/* Disable C linkage for C++ Compilers: */ |
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#if defined(__cplusplus) |
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} |
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#endif |
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#endif |
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/** @} */
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