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Diffstat (limited to 'LUFA/Drivers/USB/Core/Device.h')
| -rw-r--r-- | LUFA/Drivers/USB/Core/Device.h | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Core/Device.h b/LUFA/Drivers/USB/Core/Device.h new file mode 100644 index 0000000000..81b0e17028 --- /dev/null +++ b/LUFA/Drivers/USB/Core/Device.h @@ -0,0 +1,159 @@ +/* + 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 Common USB Device definitions for all architectures. + * \copydetails Group_Device + * + * \note This file should not be included directly. It is automatically included as needed by the USB driver + * dispatch header located in LUFA/Drivers/USB/USB.h. + */ + +/** \ingroup Group_USB + * \defgroup Group_Device Device Management + * \brief USB Device management definitions for USB device mode. + * + * USB Device mode related definitions common to all architectures. This module contains definitions which + * are used when the USB controller is initialized in device mode. + * + * @{ + */ + +#ifndef __USBDEVICE_H__ +#define __USBDEVICE_H__ + + /* Includes: */ + #include "../../../Common/Common.h" + #include "USBMode.h" + #include "StdDescriptors.h" + #include "USBInterrupt.h" + #include "Endpoint.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(__INCLUDE_FROM_USB_DRIVER) + #error Do not include this file directly. Include LUFA/Drivers/USB/USB.h instead. + #endif + + /* Public Interface - May be used in end-application: */ + /* Enums: */ + /** Enum for the various states of the USB Device state machine. Only some states are + * implemented in the LUFA library - other states are left to the user to implement. + * + * For information on each possible USB device state, refer to the USB 2.0 specification. + * + * \see \ref USB_DeviceState, which stores the current device state machine state. + */ + enum USB_Device_States_t + { + DEVICE_STATE_Unattached = 0, /**< Internally implemented by the library. This state indicates + * that the device is not currently connected to a host. + */ + DEVICE_STATE_Powered = 1, /**< Internally implemented by the library. This state indicates + * that the device is connected to a host, but enumeration has not + * yet begun. + */ + DEVICE_STATE_Default = 2, /**< Internally implemented by the library. This state indicates + * that the device's USB bus has been reset by the host and it is + * now waiting for the host to begin the enumeration process. + */ + DEVICE_STATE_Addressed = 3, /**< Internally implemented by the library. This state indicates + * that the device has been addressed by the USB Host, but is not + * yet configured. + */ + DEVICE_STATE_Configured = 4, /**< May be implemented by the user project. This state indicates + * that the device has been enumerated by the host and is ready + * for USB communications to begin. + */ + DEVICE_STATE_Suspended = 5, /**< May be implemented by the user project. This state indicates + * that the USB bus has been suspended by the host, and the device + * should power down to a minimal power level until the bus is + * resumed. + */ + }; + + /* Function Prototypes: */ + /** Function to retrieve a given descriptor's size and memory location from the given descriptor type value, + * index and language ID. This function MUST be overridden in the user application (added with full, identical + * prototype and name so that the library can call it to retrieve descriptor data. + * + * \param[in] wValue The type of the descriptor to retrieve in the upper byte, and the index in the + * lower byte (when more than one descriptor of the given type exists, such as the + * case of string descriptors). The type may be one of the standard types defined + * in the DescriptorTypes_t enum, or may be a class-specific descriptor type value. + * \param[in] wIndex The language ID of the string to return if the \c wValue type indicates + * \ref DTYPE_String, otherwise zero for standard descriptors, or as defined in a + * class-specific standards. + * \param[out] DescriptorAddress Pointer to the descriptor in memory. This should be set by the routine to + * the address of the descriptor. + * \param[out] DescriptorMemorySpace A value from the \ref USB_DescriptorMemorySpaces_t enum to indicate the memory + * space in which the descriptor is stored. This parameter does not exist when one + * of the \c USE_*_DESCRIPTORS compile time options is used, or on architectures which + * use a unified address space. + * + * \note By default, the library expects all descriptors to be located in flash memory via the \c PROGMEM attribute. + * If descriptors should be located in RAM or EEPROM instead (to speed up access in the case of RAM, or to + * allow the descriptors to be changed dynamically at runtime) either the \c USE_RAM_DESCRIPTORS or the + * \c USE_EEPROM_DESCRIPTORS tokens may be defined in the project makefile and passed to the compiler by the -D + * switch. + * + * \return Size in bytes of the descriptor if it exists, zero or \ref NO_DESCRIPTOR otherwise. + */ + uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, + const uint16_t wIndex, + const void** const DescriptorAddress + #if (defined(ARCH_HAS_MULTI_ADDRESS_SPACE) || defined(__DOXYGEN__)) && \ + !(defined(USE_FLASH_DESCRIPTORS) || defined(USE_EEPROM_DESCRIPTORS) || defined(USE_RAM_DESCRIPTORS)) + , uint8_t* const DescriptorMemorySpace + #endif + ) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3); + + /* Architecture Includes: */ + #if (ARCH == ARCH_AVR8) + #include "AVR8/Device_AVR8.h" + #elif (ARCH == ARCH_UC3) + #include "UC3/Device_UC3.h" + #elif (ARCH == ARCH_XMEGA) + #include "XMEGA/Device_XMEGA.h" + #endif + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ + |