add core files

Classes/usb.cpp

@@ -0,0 +1,85 @@
+/*
+ * usb.cpp
+ *
+ * This module has the wrapper functions to access USB driver functions.
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * ALL RIGHTS RESERVED
+ *
+*/
+
+//#ifdef Q_OS_WIN32
+//#include <setupapi.h>
+//#endif
+//#include <QMessageBox>
+//#include <QTimer>
+#include "usb.h"
+//#include <stdio.h>
+//#include <stdlib.h>
+#include "hidapi.h"
+
+/***************************************************
+*                  GLOBAL VARIABLES
+****************************************************/
+static hid_device *DeviceHandle;	//Handle to write
+//In/Out buffers equal to HID endpoint size + 1
+//First byte is for Windows internal use and it is always 0
+unsigned char OutputBuffer[USB_MAX_PACKET_SIZE+1];
+unsigned char InputBuffer[USB_MAX_PACKET_SIZE+1];
+
+static bool USBConnected = false;      //Boolean true when device is connected
+
+bool USB_IsConnected()
+{
+    return USBConnected;
+}
+
+int USB_Init(void)
+{
+    return hid_init();
+}
+
+int USB_Exit(void)
+{
+    return hid_exit();
+}
+
+int USB_Open()
+{
+    // Open the device using the VID, PID,
+    // and optionally the Serial number.
+    DeviceHandle = hid_open(MY_VID, MY_PID, NULL);
+
+    if(DeviceHandle == NULL)
+    {
+        USBConnected = false;
+        return -1;
+    }
+    USBConnected = true;
+    return 0;
+}
+
+int USB_Write()
+{
+    if(DeviceHandle == NULL)
+        return -1;
+
+    return hid_write(DeviceHandle, OutputBuffer, USB_MIN_PACKET_SIZE+1);
+
+}
+
+int USB_Read()
+{
+    if(DeviceHandle == NULL)
+        return -1;
+
+    return hid_read_timeout(DeviceHandle, InputBuffer, USB_MIN_PACKET_SIZE+1, 2000);
+}
+
+int USB_Close()
+{
+    hid_close(DeviceHandle);
+    USBConnected = false;
+
+    return 0;
+}