90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
#include "tusb.h"
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// --- Device Descriptors ---
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tusb_desc_device_t const desc_device = {
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.bLength = sizeof(tusb_desc_device_t),
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.bDescriptorType = TUSB_DESC_DEVICE,
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.bcdUSB = 0x0200, // USB 2.0
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.bDeviceClass = TUSB_CLASS_MISC,
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.bDeviceSubClass = MISC_SUBCLASS_COMMON,
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.bDeviceProtocol = MISC_PROTOCOL_IAD,
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.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
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.idVendor = 0xCAFE, // Пример VID
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.idProduct = 0x4001, // Пример PID
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.bcdDevice = 0x0100,
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.iManufacturer = 0x01,
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.iProduct = 0x02,
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.iSerialNumber = 0x03,
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.bNumConfigurations = 0x01};
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// Invoked when received GET DEVICE DESCRIPTOR
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uint8_t const* tud_descriptor_device_cb(void) {
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return (uint8_t const*)&desc_device;
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}
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// --- Configuration Descriptor ---
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enum { ITF_NUM_CDC = 0, ITF_NUM_CDC_DATA, ITF_NUM_TOTAL };
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#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_CDC_DESC_LEN)
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// Полный конфигурационный дескриптор
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uint8_t const desc_configuration[] = {
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// Config number, interface count, string index, total length, attributes,
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// power in mA
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TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
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// Interface number, string index, EP notification address and size, EP data
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// address (out, in) and size.
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// EP Notification: 0x81 (In), EP Data Out: 0x02, EP Data In: 0x82 (In)
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// ВАЖНО: Убедитесь, что номера EP не конфликтуют и поддерживаются железом
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// F103
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TUD_CDC_DESCRIPTOR(ITF_NUM_CDC, 4, 0x81, 8, 0x02, 0x82, 64)};
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// Invoked when received GET CONFIGURATION DESCRIPTOR
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uint8_t const* tud_descriptor_configuration_cb(uint8_t index) {
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(void)index; // for multiple configurations
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return desc_configuration;
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}
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// --- String Descriptors ---
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char const* string_desc_arr[] = {
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(const char[]){0x09, 0x04}, // 0: is supported language is English (0x0409)
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"TinyUSB", // 1: Manufacturer
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"TinyUSB Device", // 2: Product
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"123456", // 3: Serials, should use chip ID
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"TinyUSB CDC", // 4: CDC Interface
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};
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static uint16_t _desc_str[32];
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// Invoked when received GET STRING DESCRIPTOR request
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uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
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(void)langid;
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uint8_t chr_count;
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if (index == 0) {
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memcpy(&_desc_str[1], string_desc_arr[0], 2);
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chr_count = 1;
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} else {
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if (!(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])))
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return NULL;
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const char* str = string_desc_arr[index];
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// Cap at max char
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chr_count = strlen(str);
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if (chr_count > 31) chr_count = 31;
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// Convert ASCII string into UTF-16
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for (uint8_t i = 0; i < chr_count; i++) { _desc_str[1 + i] = str[i]; }
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}
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// first byte is length (including header), second byte is string type
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_desc_str[0] = (TUSB_DESC_STRING << 8) | (2 * chr_count + 2);
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return _desc_str;
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}
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