From cf8fbd80f47a544bd9504feea13586cff1cb546e Mon Sep 17 00:00:00 2001
From: Jorj Bauer <jorj@jorj.org>
Date: Tue, 7 Jul 2020 06:25:04 -0400
Subject: [PATCH] testing USB host

---
 teensy/teensy-usb.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 teensy/teensy-usb.h   | 21 +++++++++++++++++++++
 teensy/teensy.ino     | 23 +++++++++++++++++++++++
 3 files changed, 84 insertions(+)
 create mode 100644 teensy/teensy-usb.cpp
 create mode 100644 teensy/teensy-usb.h

diff --git a/teensy/teensy-usb.cpp b/teensy/teensy-usb.cpp
new file mode 100644
index 0000000..28e370e
--- /dev/null
+++ b/teensy/teensy-usb.cpp
@@ -0,0 +1,40 @@
+#include <Arduino.h>
+#include <USBHost_t36.h>
+#include "teensy-usb.h"
+
+USBHost myusb;
+USBHub hub1(myusb);
+USBHub hub2(myusb);
+USBHub hub3(myusb);
+KeyboardController keyboard1(myusb);
+KeyboardController keyboard2(myusb);
+
+TeensyUSB::TeensyUSB()
+{
+}
+
+TeensyUSB::~TeensyUSB()
+{
+}
+
+void TeensyUSB::init()
+{
+  myusb.begin();
+}
+
+void TeensyUSB::attachKeypress(keyboardCallback cb)
+{
+  keyboard1.attachPress(cb);
+  keyboard2.attachPress(cb);
+}
+
+void TeensyUSB::attachKeyrelease(keyboardCallback cb)
+{
+  keyboard1.attachRelease(cb);
+  keyboard2.attachRelease(cb);
+}
+
+void TeensyUSB::maintain()
+{
+  myusb.Task();
+}
diff --git a/teensy/teensy-usb.h b/teensy/teensy-usb.h
new file mode 100644
index 0000000..2789f4a
--- /dev/null
+++ b/teensy/teensy-usb.h
@@ -0,0 +1,21 @@
+#ifndef __TEENSY_USB
+#define __TEENSY_USB
+
+#include <Arduino.h>
+#include <USBHost_t36.h>
+
+typedef void (*keyboardCallback)(int unicode);
+
+class TeensyUSB {
+ public:
+  TeensyUSB();
+  ~TeensyUSB();
+
+  void init();
+  void attachKeypress(keyboardCallback cb);
+  void attachKeyrelease(keyboardCallback cb);
+
+  void maintain();
+};
+
+#endif
diff --git a/teensy/teensy.ino b/teensy/teensy.ino
index 00b3447..f803c96 100644
--- a/teensy/teensy.ino
+++ b/teensy/teensy.ino
@@ -10,6 +10,7 @@
 #include "teensy-speaker.h"
 #include "teensy-paddles.h"
 #include "teensy-filemanager.h"
+#include "teensy-usb.h"
 #include "appleui.h"
 #include "teensy-prefs.h"
 #include "teensy-println.h"
@@ -35,6 +36,22 @@ BIOS bios;
 
 static   time_t getTeensy3Time() {  return Teensy3Clock.get(); }
 
+TeensyUSB usb;
+
+void onKeypress(int unicode)
+{
+  Serial.print("onKeypress:");
+  Serial.println(unicode);
+  //  vmkeyboard->keyDepressed(keypad.key[i].kchar);
+}
+
+void onKeyrelease(int unicode)
+{
+  Serial.print("onKeyrelease: ");
+  Serial.println(unicode);
+  //  vmkeyboard->keyReleased(keypad.key[i].kchar);
+}
+
 void setup()
 {
   Serial.begin(230400);
@@ -104,6 +121,11 @@ void setup()
   println(" cpu");
   g_cpu = new Cpu();
 
+  println(" usb");
+  usb.init();
+  usb.attachKeypress(onKeypress);
+  usb.attachKeyrelease(onKeyrelease);
+
   Serial.print("Free RAM: ");
   println(FreeRamEstimate());
   
@@ -277,6 +299,7 @@ void loop()
   } 
 
   g_keyboard->maintainKeyboard();
+  usb.maintain();
 
   //debugLCDState = !debugLCDState;
   //digitalWrite(57, debugLCDState);