/* * 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 "bsp/board.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) ) // Configuration mode // 0 : enumerated as CDC/MIDI. Board button is not pressed when enumerating // 1 : enumerated as MSC. Board button is pressed when enumerating static uint32_t mode = 0; //--------------------------------------------------------------------+ // Device Descriptors //--------------------------------------------------------------------+ tusb_desc_device_t const desc_device_0 = { .bLength = sizeof(tusb_desc_device_t), .bDescriptorType = TUSB_DESC_DEVICE, .bcdUSB = 0x0200, // Use Interface Association Descriptor (IAD) for CDC // As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1) .bDeviceClass = TUSB_CLASS_MISC, .bDeviceSubClass = MISC_SUBCLASS_COMMON, .bDeviceProtocol = MISC_PROTOCOL_IAD, .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, .idVendor = 0xCafe, .idProduct = USB_PID, .bcdDevice = 0x0100, .iManufacturer = 0x01, .iProduct = 0x02, .iSerialNumber = 0x03, .bNumConfigurations = 0x01 }; tusb_desc_device_t const desc_device_1 = { .bLength = sizeof(tusb_desc_device_t), .bDescriptorType = TUSB_DESC_DEVICE, .bcdUSB = 0x0200, .bDeviceClass = 0, .bDeviceSubClass = 0, .bDeviceProtocol = 0, .bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE, .idVendor = 0xCafe, .idProduct = USB_PID + 11, // should be different PID than desc0 .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) { mode = board_button_read(); return (uint8_t const*) (mode ? &desc_device_1 : &desc_device_0); } //--------------------------------------------------------------------+ // Configuration Descriptor //--------------------------------------------------------------------+ enum { ITF_0_NUM_CDC = 0, ITF_0_NUM_CDC_DATA, ITF_0_NUM_MIDI, ITF_0_NUM_MIDI_STREAMING, ITF_0_NUM_TOTAL }; enum { ITF_1_NUM_MSC = 0, ITF_1_NUM_TOTAL }; #define CONFIG_0_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN + TUD_MIDI_DESC_LEN) #define CONFIG_1_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_MSC_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 // 0 control, 1 In, 2 Bulk, 3 Iso, 4 In, 5 Bulk etc ... #define EPNUM_0_CDC_NOTIF 0x81 #define EPNUM_0_CDC_OUT 0x02 #define EPNUM_0_CDC_IN 0x82 #define EPNUM_0_MIDI_OUT 0x05 #define EPNUM_0_MIDI_IN 0x85 #define EPNUM_1_MSC_OUT 0x02 #define EPNUM_1_MSC_IN 0x82 #elif CFG_TUSB_MCU == OPT_MCU_SAMG // SAMG doesn't support a same endpoint number with different direction IN and OUT // e.g EP1 OUT & EP1 IN cannot exist together #define EPNUM_0_CDC_NOTIF 0x81 #define EPNUM_0_CDC_OUT 0x02 #define EPNUM_0_CDC_IN 0x83 #define EPNUM_0_MIDI_OUT 0x04 #define EPNUM_0_MIDI_IN 0x85 #define EPNUM_1_MSC_OUT 0x01 #define EPNUM_1_MSC_IN 0x82 #else #define EPNUM_0_CDC_NOTIF 0x81 #define EPNUM_0_CDC_OUT 0x02 #define EPNUM_0_CDC_IN 0x82 #define EPNUM_0_MIDI_OUT 0x03 #define EPNUM_0_MIDI_IN 0x83 #define EPNUM_1_MSC_OUT 0x01 #define EPNUM_1_MSC_IN 0x81 #endif uint8_t const desc_configuration_0[] = { // Config number, interface count, string index, total length, attribute, power in mA TUD_CONFIG_DESCRIPTOR(1, ITF_0_NUM_TOTAL, 0, CONFIG_0_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100), // Interface number, string index, EP notification address and size, EP data address (out, in) and size. TUD_CDC_DESCRIPTOR(ITF_0_NUM_CDC, 0, EPNUM_0_CDC_NOTIF, 8, EPNUM_0_CDC_OUT, EPNUM_0_CDC_IN, 64), // Interface number, string index, EP Out & EP In address, EP size TUD_MIDI_DESCRIPTOR(ITF_0_NUM_MIDI, 0, EPNUM_0_MIDI_OUT, EPNUM_0_MIDI_IN, TUD_OPT_HIGH_SPEED ? 512 : 64), }; uint8_t const desc_configuraiton_1[] = { // Config number, interface count, string index, total length, attribute, power in mA TUD_CONFIG_DESCRIPTOR(1, ITF_1_NUM_TOTAL, 0, CONFIG_1_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100), // Interface number, string index, EP Out & EP In address, EP size TUD_MSC_DESCRIPTOR(ITF_1_NUM_MSC, 0, EPNUM_1_MSC_OUT, EPNUM_1_MSC_IN, TUD_OPT_HIGH_SPEED ? 512 : 64), }; // 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 mode ? desc_configuraiton_1 : desc_configuration_0; } //--------------------------------------------------------------------+ // 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 { // Convert ASCII string into UTF-16 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 = strlen(str); if ( chr_count > 31 ) chr_count = 31; for(uint8_t i=0; i