/* * 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 "unique.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) ) // String Descriptor Index enum { STRID_LANGID = 0, STRID_MANUFACTURER, STRID_PRODUCT, STRID_SERIAL, }; //--------------------------------------------------------------------+ // 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 = STRID_MANUFACTURER, .iProduct = STRID_PRODUCT, .iSerialNumber = STRID_SERIAL, .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 //--------------------------------------------------------------------+ static uint8_t const desc_hid_report[] = { TUD_HID_REPORT_DESC_GENERIC_INOUT(CFG_TUD_HID_EP_BUFSIZE) }; // 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(void) { return desc_hid_report; } //--------------------------------------------------------------------+ // Configuration Descriptor //--------------------------------------------------------------------+ enum { ITF_NUM_HID, ITF_NUM_TOTAL }; #define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_HID_INOUT_DESC_LEN) #define EPNUM_HID 0x01 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 & Out address, size & polling interval TUD_HID_INOUT_DESCRIPTOR(ITF_NUM_HID, 0, HID_PROTOCOL_NONE, sizeof(desc_hid_report), EPNUM_HID, 0x80 | EPNUM_HID, CFG_TUD_HID_EP_BUFSIZE, 1) }; // 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 [] = { [STRID_LANGID] = (const char[]) { 0x09, 0x04 }, // supported language is English (0x0409) [STRID_MANUFACTURER] = "TinyUSB", // Manufacturer [STRID_PRODUCT] = "TinyUSB CMSIS-DAP", // Product }; 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 = 0; if (STRID_LANGID == index) { memcpy(&_desc_str[1], string_desc_arr[STRID_LANGID], 2); chr_count = 1; } else if (STRID_SERIAL == index) { chr_count = get_unique_id(_desc_str + 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 = TU_MIN(strlen(str), 31); // Convert ASCII string into UTF-16 for(uint8_t i=0; i