159 lines
6.2 KiB
C
159 lines
6.2 KiB
C
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2017.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2017 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 disclaims 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 USB device standard request management.
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*
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* This file contains the function prototypes necessary for the processing of incoming standard control requests
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* when the library is in USB device mode.
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*
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* \note This file should not be included directly. It is automatically included as needed by the USB driver
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* dispatch header located in LUFA/Drivers/USB/USB.h.
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*/
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#ifndef __DEVICESTDREQ_H__
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#define __DEVICESTDREQ_H__
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/* Includes: */
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#include "../../../Common/Common.h"
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#include "USBMode.h"
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#include "StdDescriptors.h"
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#include "Events.h"
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#include "StdRequestType.h"
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#include "USBTask.h"
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#include "USBController.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_USB_DRIVER)
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#error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead.
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#endif
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/* Public Interface - May be used in end-application: */
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/* Enums: */
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#if defined(ARCH_HAS_MULTI_ADDRESS_SPACE) || defined(__DOXYGEN__)
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/** Enum for the possible descriptor memory spaces, for the \c MemoryAddressSpace parameter of the
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* \ref CALLBACK_USB_GetDescriptor() function. This can be used when none of the \c USE_*_DESCRIPTORS
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* compile time options are used, to indicate in which memory space the descriptor is stored.
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*
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* \ingroup Group_Device
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*/
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enum USB_DescriptorMemorySpaces_t
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{
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#if defined(ARCH_HAS_FLASH_ADDRESS_SPACE) || defined(__DOXYGEN__)
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MEMSPACE_FLASH = 0, /**< Indicates the requested descriptor is located in FLASH memory. */
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#endif
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#if defined(ARCH_HAS_EEPROM_ADDRESS_SPACE) || defined(__DOXYGEN__)
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MEMSPACE_EEPROM = 1, /**< Indicates the requested descriptor is located in EEPROM memory. */
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#endif
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MEMSPACE_RAM = 2, /**< Indicates the requested descriptor is located in RAM memory. */
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};
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#endif
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/* Global Variables: */
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/** Indicates the currently set configuration number of the device. USB devices may have several
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* different configurations which the host can select between; this indicates the currently selected
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* value, or 0 if no configuration has been selected.
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*
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* \attention This variable should be treated as read-only in the user application, and never manually
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* changed in value.
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*
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* \ingroup Group_Device
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*/
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extern uint8_t USB_Device_ConfigurationNumber;
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#if !defined(NO_DEVICE_REMOTE_WAKEUP)
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/** Indicates if the host is currently allowing the device to issue remote wakeup events. If this
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* flag is cleared, the device should not issue remote wakeup events to the host.
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*
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* \attention This variable should be treated as read-only in the user application, and never manually
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* changed in value.
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*
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* \note To reduce FLASH usage of the compiled applications where Remote Wakeup is not supported,
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* this global and the underlying management code can be disabled by defining the
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* \c NO_DEVICE_REMOTE_WAKEUP token in the project makefile and passing it to the compiler via
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* the -D switch.
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*
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* \ingroup Group_Device
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*/
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extern bool USB_Device_RemoteWakeupEnabled;
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#endif
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#if !defined(NO_DEVICE_SELF_POWER)
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/** Indicates if the device is currently being powered by its own power supply, rather than being
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* powered by the host's USB supply. This flag should remain cleared if the device does not
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* support self powered mode, as indicated in the device descriptors.
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*
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* \ingroup Group_Device
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*/
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extern bool USB_Device_CurrentlySelfPowered;
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#endif
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/* Private Interface - For use in library only: */
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#if !defined(__DOXYGEN__)
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#if defined(USE_RAM_DESCRIPTORS) && defined(USE_EEPROM_DESCRIPTORS)
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#error USE_RAM_DESCRIPTORS and USE_EEPROM_DESCRIPTORS are mutually exclusive.
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#elif defined(USE_RAM_DESCRIPTORS) && defined(USE_FLASH_DESCRIPTORS)
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#error USE_RAM_DESCRIPTORS and USE_FLASH_DESCRIPTORS are mutually exclusive.
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#elif defined(USE_FLASH_DESCRIPTORS) && defined(USE_EEPROM_DESCRIPTORS)
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#error USE_FLASH_DESCRIPTORS and USE_EEPROM_DESCRIPTORS are mutually exclusive.
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#elif defined(USE_FLASH_DESCRIPTORS) && defined(USE_EEPROM_DESCRIPTORS) && defined(USE_RAM_DESCRIPTORS)
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#error Only one of the USE_*_DESCRIPTORS modes should be selected.
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#endif
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/* Function Prototypes: */
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void USB_Device_ProcessControlRequest(void);
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#if defined(__INCLUDE_FROM_DEVICESTDREQ_C)
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static void USB_Device_SetAddress(void);
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static void USB_Device_SetConfiguration(void);
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static void USB_Device_GetConfiguration(void);
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static void USB_Device_GetDescriptor(void);
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static void USB_Device_GetStatus(void);
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static void USB_Device_ClearSetFeature(void);
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#if !defined(NO_INTERNAL_SERIAL) && (USE_INTERNAL_SERIAL != NO_DESCRIPTOR)
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static void USB_Device_GetInternalSerialDescriptor(void);
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#endif
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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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