/* * 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. * */ /* Host example will get device descriptors of attached devices and print it out via uart/rtt (logger) as follows: * Device 1: ID 046d:c52f SN 11223344 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 0200 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x046d idProduct 0xc52f bcdDevice 2200 iManufacturer 1 Logitech iProduct 2 USB Receiver iSerialNumber 0 bNumConfigurations 1 * */ #include #include #include #include "bsp/board_api.h" #include "tusb.h" // English #define LANGUAGE_ID 0x0409 //--------------------------------------------------------------------+ // MACRO CONSTANT TYPEDEF PROTYPES //--------------------------------------------------------------------+ enum { BLINK_NOT_MOUNTED = 250, BLINK_MOUNTED = 1000, BLINK_SUSPENDED = 2500, }; static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED; // Declare for buffer for usb transfer, may need to be in USB/DMA section and // multiple of dcache line size if dcache is enabled (for some ports). CFG_TUH_MEM_SECTION struct { TUH_EPBUF_TYPE_DEF(tusb_desc_device_t, device); TUH_EPBUF_DEF(serial, 64*sizeof(uint16_t)); TUH_EPBUF_DEF(buf, 128*sizeof(uint16_t)); } desc; void led_blinking_task(void* param); static void print_utf16(uint16_t* temp_buf, size_t buf_len); #if CFG_TUSB_OS == OPT_OS_FREERTOS void init_freertos_task(void); #endif //-------------------------------------------------------------------- // Main //-------------------------------------------------------------------- void init_tinyusb(void) { // init host stack on configured roothub port tusb_rhport_init_t host_init = { .role = TUSB_ROLE_HOST, .speed = TUSB_SPEED_AUTO }; tusb_init(BOARD_TUH_RHPORT, &host_init); if (board_init_after_tusb) { board_init_after_tusb(); } } int main(void) { board_init(); printf("TinyUSB Device Info Example\r\n"); #if CFG_TUSB_OS == OPT_OS_FREERTOS init_freertos_task(); #else init_tinyusb(); while (1) { tuh_task(); // tinyusb host task led_blinking_task(NULL); } return 0; #endif } /*------------- TinyUSB Callbacks -------------*/ // Invoked when device is mounted (configured) void tuh_mount_cb(uint8_t daddr) { blink_interval_ms = BLINK_MOUNTED; // Get Device Descriptor uint8_t xfer_result = tuh_descriptor_get_device_sync(daddr, &desc.device, 18); if (XFER_RESULT_SUCCESS != xfer_result) { printf("Failed to get device descriptor\r\n"); return; } printf("Device %u: ID %04x:%04x SN ", daddr, desc.device.idVendor, desc.device.idProduct); xfer_result = tuh_descriptor_get_serial_string_sync(daddr, LANGUAGE_ID, desc.serial, sizeof(desc.serial)); if (XFER_RESULT_SUCCESS != xfer_result) { uint16_t* serial = (uint16_t*)(uintptr_t) desc.serial; serial[0] = 'n'; serial[1] = '/'; serial[2] = 'a'; serial[3] = 0; } print_utf16((uint16_t*)(uintptr_t) desc.serial, sizeof(desc.serial)/2); printf("\r\n"); printf("Device Descriptor:\r\n"); printf(" bLength %u\r\n", desc.device.bLength); printf(" bDescriptorType %u\r\n", desc.device.bDescriptorType); printf(" bcdUSB %04x\r\n", desc.device.bcdUSB); printf(" bDeviceClass %u\r\n", desc.device.bDeviceClass); printf(" bDeviceSubClass %u\r\n", desc.device.bDeviceSubClass); printf(" bDeviceProtocol %u\r\n", desc.device.bDeviceProtocol); printf(" bMaxPacketSize0 %u\r\n", desc.device.bMaxPacketSize0); printf(" idVendor 0x%04x\r\n", desc.device.idVendor); printf(" idProduct 0x%04x\r\n", desc.device.idProduct); printf(" bcdDevice %04x\r\n", desc.device.bcdDevice); // Get String descriptor using Sync API printf(" iManufacturer %u ", desc.device.iManufacturer); xfer_result = tuh_descriptor_get_manufacturer_string_sync(daddr, LANGUAGE_ID, desc.buf, sizeof(desc.buf)); if (XFER_RESULT_SUCCESS == xfer_result) { print_utf16((uint16_t*)(uintptr_t) desc.buf, sizeof(desc.buf)/2); } printf("\r\n"); printf(" iProduct %u ", desc.device.iProduct); xfer_result = tuh_descriptor_get_product_string_sync(daddr, LANGUAGE_ID, desc.buf, sizeof(desc.buf)); if (XFER_RESULT_SUCCESS == xfer_result) { print_utf16((uint16_t*)(uintptr_t) desc.buf, sizeof(desc.buf)/2); } printf("\r\n"); printf(" iSerialNumber %u ", desc.device.iSerialNumber); printf((char*)desc.serial); // serial is already to UTF-8 printf("\r\n"); printf(" bNumConfigurations %u\r\n", desc.device.bNumConfigurations); } // Invoked when device is unmounted (bus reset/unplugged) void tuh_umount_cb(uint8_t daddr) { blink_interval_ms = BLINK_NOT_MOUNTED; printf("Device removed, address = %d\r\n", daddr); } //--------------------------------------------------------------------+ // String Descriptor Helper //--------------------------------------------------------------------+ static void _convert_utf16le_to_utf8(const uint16_t* utf16, size_t utf16_len, uint8_t* utf8, size_t utf8_len) { // TODO: Check for runover. (void) utf8_len; // Get the UTF-16 length out of the data itself. for (size_t i = 0; i < utf16_len; i++) { uint16_t chr = utf16[i]; if (chr < 0x80) { *utf8++ = chr & 0xffu; } else if (chr < 0x800) { *utf8++ = (uint8_t) (0xC0 | (chr >> 6 & 0x1F)); *utf8++ = (uint8_t) (0x80 | (chr >> 0 & 0x3F)); } else { // TODO: Verify surrogate. *utf8++ = (uint8_t) (0xE0 | (chr >> 12 & 0x0F)); *utf8++ = (uint8_t) (0x80 | (chr >> 6 & 0x3F)); *utf8++ = (uint8_t) (0x80 | (chr >> 0 & 0x3F)); } // TODO: Handle UTF-16 code points that take two entries. } } // Count how many bytes a utf-16-le encoded string will take in utf-8. static int _count_utf8_bytes(const uint16_t* buf, size_t len) { size_t total_bytes = 0; for (size_t i = 0; i < len; i++) { uint16_t chr = buf[i]; if (chr < 0x80) { total_bytes += 1; } else if (chr < 0x800) { total_bytes += 2; } else { total_bytes += 3; } // TODO: Handle UTF-16 code points that take two entries. } return (int) total_bytes; } static void print_utf16(uint16_t* temp_buf, size_t buf_len) { if ((temp_buf[0] & 0xff) == 0) return; // empty size_t utf16_len = ((temp_buf[0] & 0xff) - 2) / sizeof(uint16_t); size_t utf8_len = (size_t) _count_utf8_bytes(temp_buf + 1, utf16_len); _convert_utf16le_to_utf8(temp_buf + 1, utf16_len, (uint8_t*) temp_buf, sizeof(uint16_t) * buf_len); ((uint8_t*) temp_buf)[utf8_len] = '\0'; printf("%s", (char*) temp_buf); } //--------------------------------------------------------------------+ // Blinking Task //--------------------------------------------------------------------+ void led_blinking_task(void* param) { (void) param; static uint32_t start_ms = 0; static bool led_state = false; while (1) { #if CFG_TUSB_OS == OPT_OS_FREERTOS vTaskDelay(blink_interval_ms / portTICK_PERIOD_MS); #else if (board_millis() - start_ms < blink_interval_ms) { return; // not enough time } #endif start_ms += blink_interval_ms; board_led_write(led_state); led_state = 1 - led_state; // toggle } } //--------------------------------------------------------------------+ // FreeRTOS //--------------------------------------------------------------------+ #if CFG_TUSB_OS == OPT_OS_FREERTOS #define BLINKY_STACK_SIZE configMINIMAL_STACK_SIZE #if TUSB_MCU_VENDOR_ESPRESSIF #define USB_STACK_SIZE 4096 #else // Increase stack size when debug log is enabled #define USB_STACK_SIZE (3*configMINIMAL_STACK_SIZE/2) * (CFG_TUSB_DEBUG ? 2 : 1) #endif // static task #if configSUPPORT_STATIC_ALLOCATION StackType_t blinky_stack[BLINKY_STACK_SIZE]; StaticTask_t blinky_taskdef; StackType_t usb_stack[USB_STACK_SIZE]; StaticTask_t usb_taskdef; #endif #if TUSB_MCU_VENDOR_ESPRESSIF void app_main(void) { main(); } #endif void usb_host_task(void *param) { (void) param; init_tinyusb(); while (1) { tuh_task(); } } void init_freertos_task(void) { #if configSUPPORT_STATIC_ALLOCATION xTaskCreateStatic(led_blinking_task, "blinky", BLINKY_STACK_SIZE, NULL, 1, blinky_stack, &blinky_taskdef); xTaskCreateStatic(usb_host_task, "usbh", USB_STACK_SIZE, NULL, configMAX_PRIORITIES-1, usb_stack, &usb_taskdef); #else xTaskCreate(led_blinking_task, "blinky", BLINKY_STACK_SIZE, NULL, 1, NULL); xTaskCreate(usb_host_task, "usbh", USB_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, NULL); #endif // skip starting scheduler (and return) for ESP32-S2 or ESP32-S3 #if !TUSB_MCU_VENDOR_ESPRESSIF vTaskStartScheduler(); #endif } #endif