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Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/RNDISClassHost.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/RNDISClassHost.h | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/RNDISClassHost.h b/LUFA/Drivers/USB/Class/Host/RNDISClassHost.h new file mode 100644 index 0000000000..bddbc247a8 --- /dev/null +++ b/LUFA/Drivers/USB/Class/Host/RNDISClassHost.h @@ -0,0 +1,270 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 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 disclaims 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 RNDIS Class driver. + * + * Host mode driver for the library USB RNDIS 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_USBClassRNDIS + * \defgroup Group_USBClassRNDISHost RNDIS Class Host Mode Driver + * + * \section Sec_USBClassRNDISHost_Dependencies Module Source Dependencies + * The following files must be built with any user project that uses this module: + * - LUFA/Drivers/USB/Class/Host/RNDISClassHost.c <i>(Makefile source module name: LUFA_SRC_USBCLASS)</i> + * + * \section Sec_USBClassRNDISHost_ModDescription Module Description + * Host Mode USB Class driver framework interface, for the Microsoft RNDIS Ethernet + * USB Class driver. + * + * @{ + */ + +#ifndef __RNDIS_CLASS_HOST_H__ +#define __RNDIS_CLASS_HOST_H__ + + /* Includes: */ + #include "../../USB.h" + #include "../Common/RNDISClassCommon.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(__INCLUDE_FROM_RNDIS_DRIVER) + #error Do not include this file directly. Include LUFA/Drivers/USB.h instead. + #endif + + /* Public Interface - May be used in end-application: */ + /* Type Defines: */ + /** \brief RNDIS 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 RNDIS class driver functions as the \c RNDISInterfaceInfo parameter. This + * stores each RNDIS interface's configuration and state information. + */ + typedef struct + { + struct + { + USB_Pipe_Table_t DataINPipe; /**< Data IN Pipe configuration table. */ + USB_Pipe_Table_t DataOUTPipe; /**< Data OUT Pipe configuration table. */ + USB_Pipe_Table_t NotificationPipe; /**< Notification IN Pipe configuration table. */ + + uint32_t HostMaxPacketSize; /**< Maximum size of a packet which can be buffered by the host. */ + } 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 RNDIS_Host_ConfigurePipes() is called and the Host state machine is in the + * Configured state. + */ + uint8_t ControlInterfaceNumber; /**< Interface index of the RNDIS control interface within the attached device. */ + + uint32_t DeviceMaxPacketSize; /**< Maximum size of a packet which can be buffered by the attached RNDIS device. */ + + uint32_t RequestID; /**< Request ID counter to give a unique ID for each command/response pair. */ + } 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_RNDIS_Host_t; + + /* Enums: */ + /** Enum for the possible error codes returned by the \ref RNDIS_Host_ConfigurePipes() function. */ + enum RNDIS_Host_EnumerationFailure_ErrorCodes_t + { + RNDIS_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully. */ + RNDIS_ENUMERROR_InvalidConfigDescriptor = 1, /**< The device returned an invalid Configuration Descriptor. */ + RNDIS_ENUMERROR_NoCompatibleInterfaceFound = 2, /**< A compatible RNDIS interface was not found in the device's Configuration Descriptor. */ + RNDIS_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 RNDIS host interface instance using the Configuration + * Descriptor read from an attached USB device. This function automatically updates the given RNDIS 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] RNDISInterfaceInfo Pointer to a structure containing an RNDIS 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 RNDIS_Host_EnumerationFailure_ErrorCodes_t enum. + */ + uint8_t RNDIS_Host_ConfigurePipes(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, + uint16_t ConfigDescriptorSize, + void* ConfigDescriptorData) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3); + + /** Sends a RNDIS KEEPALIVE command to the device, to ensure that it does not enter standby mode after periods + * of long inactivity. + * + * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum or \ref RNDIS_ERROR_LOGICAL_CMD_FAILED if the device returned a + * logical command failure. + */ + uint8_t RNDIS_Host_SendKeepAlive(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Initializes the attached RNDIS device's RNDIS interface. This should be called after the device's pipes have been + * configured via the call to \ref RNDIS_Host_ConfigurePipes(). + * + * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum or \ref RNDIS_ERROR_LOGICAL_CMD_FAILED if the + * device returned a logical command failure. + */ + uint8_t RNDIS_Host_InitializeDevice(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Sets a given RNDIS property of an attached RNDIS device. + * + * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + * \param[in] Oid OID number of the parameter to set. + * \param[in] Buffer Pointer to where the property data is to be sourced from. + * \param[in] Length Length in bytes of the property data to sent to the device. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum or \ref RNDIS_ERROR_LOGICAL_CMD_FAILED if the + * device returned a logical command failure. + */ + uint8_t RNDIS_Host_SetRNDISProperty(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, + const uint32_t Oid, + void* Buffer, + const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3); + + /** Gets a given RNDIS property of an attached RNDIS device. + * + * \param[in,out] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + * \param[in] Oid OID number of the parameter to get. + * \param[in] Buffer Pointer to where the property data is to be written to. + * \param[in] MaxLength Length in bytes of the destination buffer size. + * + * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum or \ref RNDIS_ERROR_LOGICAL_CMD_FAILED if the + * device returned a logical command failure. + */ + uint8_t RNDIS_Host_QueryRNDISProperty(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, + const uint32_t Oid, + void* Buffer, + const uint16_t MaxLength) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3); + + /** Determines if a packet is currently waiting for the host to read in and process. + * + * \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] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + * + * \return Boolean \c true if a packet is waiting to be read in by the host, \c false otherwise. + */ + bool RNDIS_Host_IsPacketReceived(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1); + + /** Retrieves the next pending packet from the device, discarding the remainder of the RNDIS packet header to leave + * only the packet contents for processing by the host in the nominated buffer. + * + * \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] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + * \param[out] Buffer Pointer to a buffer where the packer data is to be written to. + * \param[out] PacketLength Pointer to where the length in bytes of the read packet is to be stored. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. + */ + uint8_t RNDIS_Host_ReadPacket(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, + void* Buffer, + uint16_t* const PacketLength) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2) + ATTR_NON_NULL_PTR_ARG(3); + + /** Sends the given packet to the attached RNDIS device, after adding a RNDIS packet message header. + * + * \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] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + * \param[in] Buffer Pointer to a buffer where the packer data is to be read from. + * \param[in] PacketLength Length in bytes of the packet to send. + * + * \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum. + */ + uint8_t RNDIS_Host_SendPacket(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, + void* Buffer, + const uint16_t PacketLength) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2); + + /* Inline Functions: */ + /** General management task for a given RNDIS 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] RNDISInterfaceInfo Pointer to a structure containing an RNDIS Class host configuration and state. + */ + static inline void RNDIS_Host_USBTask(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1) ATTR_ALWAYS_INLINE; + static inline void RNDIS_Host_USBTask(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo) + { + (void)RNDISInterfaceInfo; + } + + /* Private Interface - For use in library only: */ + #if !defined(__DOXYGEN__) + /* Function Prototypes: */ + #if defined(__INCLUDE_FROM_RNDIS_HOST_C) + static uint8_t RNDIS_SendEncapsulatedCommand(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, + void* Buffer, + const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) + ATTR_NON_NULL_PTR_ARG(2); + static uint8_t RNDIS_GetEncapsulatedResponse(USB_ClassInfo_RNDIS_Host_t* const RNDISInterfaceInfo, + void* Buffer, + const uint16_t Length) ATTR_NON_NULL_PTR_ARG(1) + ATTR_NON_NULL_PTR_ARG(2); + + static uint8_t DCOMP_RNDIS_Host_NextRNDISControlInterface(void* const CurrentDescriptor) + ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); + static uint8_t DCOMP_RNDIS_Host_NextRNDISDataInterface(void* const CurrentDescriptor) + ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(1); + static uint8_t DCOMP_RNDIS_Host_NextRNDISInterfaceEndpoint(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 + +/** @} */ + |