Finished rubber ducky

usb_descriptors.c

@@ -0,0 +1,87 @@
+#include "tusb.h"
+#include "usb_descriptors.h"
+
+// String Descriptors
+char const* string_desc_arr[] = {
+    (const char[]) { 0x09, 0x04 }, // 0: Supported language is English (0x0409)
+    "Raspberry Pi",                // 1: Manufacturer
+    "Pico Keyboard",               // 2: Product
+    "123456",                      // 3: Serials
+};
+
+// HID Report Descriptor using standard TinyUSB macros
+uint8_t const desc_hid_report[] = {
+    TUD_HID_REPORT_DESC_KEYBOARD( HID_REPORT_ID(REPORT_ID_KEYBOARD) )
+};
+
+// Invoked when received GET HID REPORT DESCRIPTOR
+uint8_t const * tud_hid_descriptor_report_cb(uint8_t instance) {
+    (void) instance;
+    return desc_hid_report;
+}
+
+// Configuration Descriptor
+#define CONFIG_TOTAL_LEN  (TUD_CONFIG_DESC_LEN + TUD_HID_DESC_LEN)
+#define EPNUM_HID         0x81
+
+uint8_t const desc_configuration[] = {
+    // Config number, interface count, string index, total length, attribute, power in mA
+    TUD_CONFIG_DESCRIPTOR(1, 1, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
+
+    // Interface number, string index, boot protocol, report descriptor len, EP In address, size, polling interval
+    TUD_HID_DESCRIPTOR(0, 0, HID_ITF_PROTOCOL_KEYBOARD, sizeof(desc_hid_report), EPNUM_HID, CFG_TUD_HID_EP_BUFSIZE, 10)
+};
+
+// Invoked when received GET CONFIGURATION DESCRIPTOR
+uint8_t const * tud_descriptor_configuration_cb(uint8_t index) {
+    (void) index;
+    return desc_configuration;
+}
+
+// Device Descriptor
+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           = 0x2E8A, // Raspberry Pi Vid
+    .idProduct          = 0x000a, // Pico SDK HID Product Id
+    .bcdDevice          = 0x0100,
+
+    .iManufacturer      = 1,
+    .iProduct           = 2,
+    .iSerialNumber      = 3,
+    .bNumConfigurations = 1
+};
+
+// Invoked when received GET DEVICE DESCRIPTOR
+uint8_t const * tud_descriptor_device_cb(void) {
+    return (uint8_t const *) &desc_device;
+}
+
+// Invoked when received GET STRING DESCRIPTOR request
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
+    (void) langid;
+    static uint16_t _desc_str[32];
+    uint8_t chr_count;
+
+    if (index == 0) {
+        memcpy(&_desc_str[1], string_desc_arr[0], 2);
+        chr_count = 1;
+    } else {
+        if (!(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0]))) return NULL;
+        const char* str = string_desc_arr[index];
+        chr_count = strlen(str);
+        if (chr_count > 31) chr_count = 31;
+        for(uint8_t i=0; i<chr_count; i++) {
+            _desc_str[1+i] = str[i];
+        }
+    }
+
+    _desc_str[0] = (TUSB_DESC_STRING << 8) | (2*chr_count + 2);
+    return _desc_str;
+}