| /* |
| LUFA Library |
| Copyright (C) Dean Camera, 2021. |
| |
| dean [at] fourwalledcubicle [dot] com |
| www.lufa-lib.org |
| */ |
| |
| /* |
| Copyright 2021 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 |
| * |
| * USB Device Descriptors, for library use when in USB device mode. Descriptors are special |
| * computer-readable structures which the host requests upon device enumeration, to determine |
| * the device's capabilities and functions. |
| */ |
| |
| #include "Descriptors.h" |
| |
| /** Device descriptor structure. This descriptor, located in SRAM memory, describes the overall |
| * device characteristics, including the supported USB version, control endpoint size and the |
| * number of device configurations. The descriptor is read out by the USB host when the enumeration |
| * process begins. |
| */ |
| const USB_Descriptor_Device_t DeviceDescriptor = |
| { |
| .Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device}, |
| |
| .USBSpecification = VERSION_BCD(1,1,0), |
| .Class = USB_CSCP_NoDeviceClass, |
| .SubClass = USB_CSCP_NoDeviceSubclass, |
| .Protocol = USB_CSCP_NoDeviceProtocol, |
| |
| .Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE, |
| |
| .VendorID = 0x03EB, |
| .ProductID = PRODUCT_ID_CODE, |
| .ReleaseNumber = VERSION_BCD(0,0,0), |
| |
| .ManufacturerStrIndex = STRING_ID_Manufacturer, |
| .ProductStrIndex = STRING_ID_Product, |
| .SerialNumStrIndex = NO_DESCRIPTOR, |
| |
| .NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS |
| }; |
| |
| /** Configuration descriptor structure. This descriptor, located in SRAM memory, describes the usage |
| * of the device in one of its supported configurations, including information about any device interfaces |
| * and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting |
| * a configuration so that the host may correctly communicate with the USB device. |
| */ |
| const USB_Descriptor_Configuration_t ConfigurationDescriptor = |
| { |
| .Config = |
| { |
| .Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration}, |
| |
| .TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t), |
| .TotalInterfaces = 1, |
| |
| .ConfigurationNumber = 1, |
| .ConfigurationStrIndex = NO_DESCRIPTOR, |
| |
| .ConfigAttributes = USB_CONFIG_ATTR_RESERVED, |
| |
| .MaxPowerConsumption = USB_CONFIG_POWER_MA(100) |
| }, |
| |
| .DFU_Interface = |
| { |
| .Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface}, |
| |
| .InterfaceNumber = INTERFACE_ID_DFU, |
| .AlternateSetting = 0, |
| |
| .TotalEndpoints = 0, |
| |
| .Class = 0xFE, |
| .SubClass = 0x01, |
| .Protocol = 0x02, |
| |
| .InterfaceStrIndex = NO_DESCRIPTOR |
| }, |
| |
| .DFU_Functional = |
| { |
| .Header = {.Size = sizeof(USB_Descriptor_DFU_Functional_t), .Type = DTYPE_DFUFunctional}, |
| |
| .Attributes = (ATTR_CAN_UPLOAD | ATTR_CAN_DOWNLOAD), |
| |
| .DetachTimeout = 0x0000, |
| .TransferSize = 0x0C00, |
| |
| .DFUSpecification = VERSION_BCD(1,1,0) |
| } |
| }; |
| |
| /** Language descriptor structure. This descriptor, located in SRAM memory, is returned when the host requests |
| * the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate |
| * via the language ID table available at USB.org what languages the device supports for its string descriptors. |
| */ |
| const USB_Descriptor_String_t LanguageString = USB_STRING_DESCRIPTOR_ARRAY(LANGUAGE_ID_ENG); |
| |
| /** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable |
| * form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device |
| * Descriptor. |
| */ |
| const USB_Descriptor_String_t ManufacturerString = USB_STRING_DESCRIPTOR(L"LUFA Library"); |
| |
| /** Product descriptor string. This is a Unicode string containing the product's details in human readable form, |
| * and is read out upon request by the host when the appropriate string ID is requested, listed in the Device |
| * Descriptor. |
| */ |
| const USB_Descriptor_String_t ProductString = USB_STRING_DESCRIPTOR(L"LUFA DFU"); |
| |
| /** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors" |
| * documentation) by the application code so that the address and size of a requested descriptor can be given |
| * to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function |
| * is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the |
| * USB host. |
| */ |
| uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, |
| const uint16_t wIndex, |
| const void** const DescriptorAddress) |
| { |
| const uint8_t DescriptorType = (wValue >> 8); |
| const uint8_t DescriptorNumber = (wValue & 0xFF); |
| |
| const void* Address = NULL; |
| uint16_t Size = NO_DESCRIPTOR; |
| |
| switch (DescriptorType) |
| { |
| case DTYPE_Device: |
| Address = &DeviceDescriptor; |
| Size = sizeof(USB_Descriptor_Device_t); |
| break; |
| case DTYPE_Configuration: |
| Address = &ConfigurationDescriptor; |
| Size = sizeof(USB_Descriptor_Configuration_t); |
| break; |
| case DTYPE_String: |
| if (DescriptorNumber == STRING_ID_Language) |
| { |
| Address = &LanguageString; |
| Size = LanguageString.Header.Size; |
| } |
| else if (DescriptorNumber == STRING_ID_Manufacturer) |
| { |
| Address = &ManufacturerString; |
| Size = ManufacturerString.Header.Size; |
| } |
| else if (DescriptorNumber == STRING_ID_Product) |
| { |
| Address = &ProductString; |
| Size = ProductString.Header.Size; |
| } |
| |
| break; |
| } |
| |
| *DescriptorAddress = Address; |
| return Size; |
| } |
| |