/* * The MIT License (MIT) * * Copyright (c) 2019 Ha Thach (tinyusb.org) * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */ #include "tusb.h" #include "usb_descriptors.h" /* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug. * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC. * * Auto ProductID layout's Bitmap: * [MSB] HID | MSC | CDC [LSB] */ #define _PID_MAP(itf, n) ( (CFG_TUD_##itf) << (n) ) #define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \ _PID_MAP(MIDI, 3) | _PID_MAP(VENDOR, 4) ) //--------------------------------------------------------------------+ // Device Descriptors //--------------------------------------------------------------------+ tusb_desc_device_t const desc_device = { .bLength = sizeof(tusb_desc_device_t), .bDescriptorType = TUSB_DESC_DEVICE, .bcdUSB = 0x0200, .bDeviceClass = 0x00, .bDeviceSubClass = 0x00, .bDeviceProtocol = 0x00, .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, .idVendor = 0xCafe, .idProduct = USB_PID, .bcdDevice = 0x0100, .iManufacturer = 0x01, .iProduct = 0x02, .iSerialNumber = 0x03, .bNumConfigurations = 0x01 }; // Invoked when received GET DEVICE DESCRIPTOR // Application return pointer to descriptor uint8_t const * tud_descriptor_device_cb(void) { return (uint8_t const *) &desc_device; } //--------------------------------------------------------------------+ // HID Report Descriptor //--------------------------------------------------------------------+ uint8_t const desc_hid_keyboard_report[] = { TUD_HID_REPORT_DESC_KEYBOARD() }; uint8_t const desc_hid_mouse_report[] = { TUD_HID_REPORT_DESC_MOUSE() }; // Invoked when received GET HID REPORT DESCRIPTOR // Application return pointer to descriptor // Descriptor contents must exist long enough for transfer to complete uint8_t const * tud_hid_descriptor_report_cb(uint8_t instance) { return (instance == 0) ? desc_hid_keyboard_report : desc_hid_mouse_report; } //--------------------------------------------------------------------+ // Configuration Descriptor //--------------------------------------------------------------------+ #define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + 2*TUD_HID_DESC_LEN) #if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || CFG_TUSB_MCU == OPT_MCU_LPC40XX // LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number // 1 Interrupt, 2 Bulk, 3 Iso, 4 Interrupt, 5 Bulk etc ... #define EPNUM_KEYBOARD 0x81 #define EPNUM_MOUSE 0x84 #else #define EPNUM_KEYBOARD 0x81 #define EPNUM_MOUSE 0x82 #endif uint8_t const desc_configuration[] = { // Config number, interface count, string index, total length, attribute, power in mA TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100), // Interface number, string index, protocol, report descriptor len, EP In address, size & polling interval TUD_HID_DESCRIPTOR(ITF_NUM_KEYBOARD, 0, HID_ITF_PROTOCOL_KEYBOARD, sizeof(desc_hid_keyboard_report), EPNUM_KEYBOARD, CFG_TUD_HID_EP_BUFSIZE, 10), // Interface number, string index, protocol, report descriptor len, EP In address, size & polling interval TUD_HID_DESCRIPTOR(ITF_NUM_MOUSE, 0, HID_ITF_PROTOCOL_MOUSE, sizeof(desc_hid_mouse_report), EPNUM_MOUSE, CFG_TUD_HID_EP_BUFSIZE, 10) }; // Invoked when received GET CONFIGURATION DESCRIPTOR // Application return pointer to descriptor // Descriptor contents must exist long enough for transfer to complete uint8_t const * tud_descriptor_configuration_cb(uint8_t index) { (void) index; // for multiple configurations return desc_configuration; } //--------------------------------------------------------------------+ // String Descriptors //--------------------------------------------------------------------+ // array of pointer to string descriptors char const* string_desc_arr [] = { (const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409) "TinyUSB", // 1: Manufacturer "TinyUSB Device", // 2: Product "123456", // 3: Serials, should use chip ID }; static uint16_t _desc_str[32]; // Invoked when received GET STRING DESCRIPTOR request // Application return pointer to descriptor, whose contents must exist long enough for transfer to complete uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) { (void) langid; uint8_t chr_count; if ( index == 0) { memcpy(&_desc_str[1], string_desc_arr[0], 2); chr_count = 1; }else { // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors. // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL; const char* str = string_desc_arr[index]; // Cap at max char chr_count = (uint8_t) strlen(str); if ( chr_count > 31 ) chr_count = 31; // Convert ASCII string into UTF-16 for(uint8_t i=0; i