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189 lines
6.5 KiB
189 lines
6.5 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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* |
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* USB Device Descriptors, for library use when in USB device mode. Descriptors are special |
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* computer-readable structures which the host requests upon device enumeration, to determine |
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* the device's capabilities and functions. |
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*/ |
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#include "Descriptors.h" |
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/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall |
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* device characteristics, including the supported USB version, control endpoint size and the |
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* number of device configurations. The descriptor is read out by the USB host when the enumeration |
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* process begins. |
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*/ |
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USB_Descriptor_Device_t DeviceDescriptor = |
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{ |
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.Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device}, |
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.USBSpecification = VERSION_BCD(01.10), |
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.Class = 0x00, |
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.SubClass = 0x00, |
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.Protocol = 0x00, |
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.Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE, |
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.VendorID = 0x03EB, // Atmel |
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.ProductID = PRODUCT_ID_CODE, // MCU-dependent |
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.ReleaseNumber = 0x0000, |
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.ManufacturerStrIndex = NO_DESCRIPTOR, |
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.ProductStrIndex = 0x01, |
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.SerialNumStrIndex = NO_DESCRIPTOR, |
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.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS |
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}; |
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/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage |
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* of the device in one of its supported configurations, including information about any device interfaces |
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* and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting |
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* a configuration so that the host may correctly communicate with the USB device. |
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*/ |
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USB_Descriptor_Configuration_t ConfigurationDescriptor = |
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{ |
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.Config = |
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{ |
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.Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration}, |
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.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t), |
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.TotalInterfaces = 1, |
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.ConfigurationNumber = 1, |
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.ConfigurationStrIndex = NO_DESCRIPTOR, |
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.ConfigAttributes = USB_CONFIG_ATTR_BUSPOWERED, |
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.MaxPowerConsumption = USB_CONFIG_POWER_MA(100) |
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}, |
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.DFU_Interface = |
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{ |
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.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface}, |
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.InterfaceNumber = 0, |
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.AlternateSetting = 0, |
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.TotalEndpoints = 0, |
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.Class = 0xFE, |
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.SubClass = 0x01, |
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.Protocol = 0x02, |
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.InterfaceStrIndex = NO_DESCRIPTOR |
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}, |
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.DFU_Functional = |
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{ |
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.Header = {.Size = sizeof(USB_DFU_Functional_Descriptor_t), .Type = DTYPE_DFUFunctional}, |
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.Attributes = (ATTR_CAN_UPLOAD | ATTR_CAN_DOWNLOAD), |
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.DetachTimeout = 0x0000, |
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.TransferSize = 0x0c00, |
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.DFUSpecification = VERSION_BCD(01.01) |
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} |
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}; |
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/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests |
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* the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate |
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* via the language ID table available at USB.org what languages the device supports for its string descriptors. |
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*/ |
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USB_Descriptor_String_t LanguageString = |
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{ |
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.Header = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String}, |
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.UnicodeString = {LANGUAGE_ID_ENG} |
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}; |
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/** Product descriptor string. This is a Unicode string containing the product's details in human readable form, |
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* and is read out upon request by the host when the appropriate string ID is requested, listed in the Device |
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* Descriptor. |
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*/ |
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USB_Descriptor_String_t ProductString = |
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{ |
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#if (ARDUINO_MODEL_PID == ARDUINO_UNO_PID) |
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.Header = {.Size = USB_STRING_LEN(15), .Type = DTYPE_String}, |
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.UnicodeString = L"Arduino Uno DFU" |
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#elif (ARDUINO_MODEL_PID == ARDUINO_MEGA2560_PID) |
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.Header = {.Size = USB_STRING_LEN(21), .Type = DTYPE_String}, |
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.UnicodeString = L"Arduino Mega 2560 DFU" |
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#endif |
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}; |
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/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors" |
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* documentation) by the application code so that the address and size of a requested descriptor can be given |
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* to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function |
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* is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the |
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* USB host. |
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*/ |
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uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, |
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const uint8_t wIndex, |
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void** const DescriptorAddress) |
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{ |
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const uint8_t DescriptorType = (wValue >> 8); |
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const uint8_t DescriptorNumber = (wValue & 0xFF); |
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void* Address = NULL; |
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uint16_t Size = NO_DESCRIPTOR; |
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switch (DescriptorType) |
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{ |
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case DTYPE_Device: |
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Address = &DeviceDescriptor; |
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Size = sizeof(USB_Descriptor_Device_t); |
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break; |
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case DTYPE_Configuration: |
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Address = &ConfigurationDescriptor; |
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Size = sizeof(USB_Descriptor_Configuration_t); |
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break; |
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case DTYPE_String: |
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if (!(DescriptorNumber)) |
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{ |
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Address = &LanguageString; |
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Size = LanguageString.Header.Size; |
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} |
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else |
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{ |
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Address = &ProductString; |
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Size = ProductString.Header.Size; |
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} |
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break; |
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} |
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*DescriptorAddress = Address; |
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return Size; |
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}
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