First Commit

src/main.cpp

@@ -0,0 +1,100 @@
+//
+// Created by awalol on 2026/3/4.
+//
+
+#include <cstdio>
+#include "bsp/board_api.h"
+#include "usb.h"
+#include "bt.h"
+#include "utils.h"
+#include "pico/multicore.h"
+#include "resample.h"
+#include "audio.h"
+
+int reportSeqCounter = 0;
+uint8_t packetCounter = 0;
+
+uint8_t interrupt_in_data[63];
+
+bool interrupt_in_cb(repeating_timer* rt) {
+    if (tud_ready()) {
+        tud_hid_report(0x01,interrupt_in_data,63);
+    }
+    return true;
+}
+
+void on_bt_data(CHANNEL_TYPE channel, uint8_t *data, uint16_t len) {
+    printf("[Main] BT data callback: channel=%u len=%u\n", channel, len);
+    if (channel == INTERRUPT && data[1] == 0x31) {
+        memcpy(interrupt_in_data,data + 3,63);
+    }
+}
+
+// Invoked when received GET_REPORT control request
+// Application must fill buffer report's content and return its length.
+// Return zero will cause the stack to STALL request
+uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t *buffer,
+                               uint16_t reqlen) {
+    (void) itf;
+    (void) report_id;
+    (void) report_type;
+    (void) buffer;
+    (void) reqlen;
+
+    uint8_t *feature_data = get_feature_data(report_id, reqlen);
+    if (feature_data) {
+        memcpy(buffer, feature_data, reqlen);
+    }
+
+    return feature_data ? reqlen : 0;
+}
+
+// Invoked when received SET_REPORT control request or
+// received data on OUT endpoint ( Report ID = 0, Type = 0 )
+void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id, hid_report_type_t report_type, uint8_t const *buffer,
+                           uint16_t bufsize) {
+    // This example doesn't use multiple report and report ID
+    (void) itf;
+    (void) report_id;
+    (void) report_type;
+    (void) buffer;
+    (void) bufsize;
+
+    switch (buffer[0]) {
+        case 0x02: {
+            uint8_t outputData[78];
+            outputData[0] = 0x31;
+            outputData[1] = reportSeqCounter << 4;
+            if (++reportSeqCounter == 256) {
+                reportSeqCounter = 0;
+            }
+            outputData[2] = 0x10;
+            memcpy(outputData + 3,buffer + 1,bufsize - 1);
+            bt_write(outputData,sizeof(outputData));
+            break;
+        }
+    }
+}
+
+int main() {
+    board_init();
+
+    tusb_rhport_init_t dev_init = {
+        .role = TUSB_ROLE_DEVICE,
+        .speed = TUSB_SPEED_AUTO
+    };
+    tusb_init(BOARD_TUD_RHPORT, &dev_init);
+
+    board_init_after_tusb();
+
+    bt_init();
+    bt_register_data_callback(on_bt_data);
+
+    multicore_launch_core1(core1_entry);
+    repeating_timer rt{};
+    add_repeating_timer_ms(4,interrupt_in_cb,nullptr,&rt);
+
+    while (1) {
+        tud_task();
+    }
+}