move user setup to right after MSD, so we can have HID

Author: ladyada

M4_Eyes/M4_Eyes.ino

@@ -142,6 +142,9 @@ void setup() {
 #else
   if(!arcada.filesysBegin())    fatal("No filesystem found!", 250);
 #endif
+
+  user_setup();
+
   arcada.displayBegin();
 
   DISPLAY_SIZE     = min(ARCADA_TFT_WIDTH, ARCADA_TFT_HEIGHT);
@@ -415,8 +418,6 @@ void setup() {
     boopThreshold = boopThreshold * 110 / 100; // 10% overhead
   }
 
-  user_setup();
-
   lastLightReadTime = micros() + 2000000; // Delay initial light reading
 }
 

M4_Eyes/user_hid.cpp

@@ -0,0 +1,49 @@
+#if 0 // Change to 1 to enable this code (must enable ONE user*.cpp only!)
+
+#include <Arduino.h>
+#include "Adafruit_TinyUSB.h"
+#include "globals.h"
+
+#define KEYCODE_TO_SEND  HID_KEY_SPACE
+
+// HID report descriptor using TinyUSB's template
+// Single Report (no ID) descriptor
+uint8_t const desc_hid_report[] =
+{
+  TUD_HID_REPORT_DESC_KEYBOARD(),
+};
+
+Adafruit_USBD_HID usb_hid;
+
+void user_setup(void) {
+  usb_hid.setPollInterval(20);
+  usb_hid.setReportDescriptor(desc_hid_report, sizeof(desc_hid_report));
+
+  usb_hid.begin();
+
+  pinMode(13, OUTPUT);
+  digitalWrite(13, LOW);
+
+  // wait until device mounted
+  while( !USBDevice.mounted() ) delay(1);
+}
+
+void user_loop(void) {
+  if ( !usb_hid.ready() ) {
+    Serial.println("not ready");
+    return;
+  }
+
+  uint8_t keycode[6] = { 0 };
+
+  uint32_t buttonState = arcada.readButtons();
+  if (buttonState & ARCADA_BUTTONMASK_A) {
+    Serial.println("A");
+    keycode[0] = KEYCODE_TO_SEND;
+    usb_hid.keyboardReport(0, 0, keycode);
+  } else {
+    usb_hid.keyboardRelease(0);  
+  }
+}
+
+#endif