form1.cs

Cypress Suite USB 3.4.6

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;
using CyUSB;
using System.Runtime.InteropServices;

namespace Streamer
{

    public class Form1 : System.Windows.Forms.Form
    {
        bool bVista;
        private System.Diagnostics.PerformanceCounter CpuCounter;

        USBDeviceList usbDevices;
        CyUSBDevice MyDevice;
        CyUSBEndPoint EndPoint;

        DateTime t1, t2;
        TimeSpan elapsed;
        double XferBytes;
        long xferRate;

        int BufSz;
        int QueueSz;
        int PPX;
        int IsoPktBlockSize;
        int Successes;
        int Failures;

        Thread tListen;
        bool bRunning;

        // These are  needed for Thread to update the UI
        delegate void UpdateUICallback();
        UpdateUICallback updateUI;

        // These are needed to close the app from the Thread exception(exception handling)
        delegate void ExceptionCallback();
        ExceptionCallback handleException;

        public Form1()
        {
            bVista = (Environment.OSVersion.Version.Major == 6);

            // Required for Windows Form Designer support
            InitializeComponent();

            // Late setup of the CPU monitor - (Bails-out if in Vista)
            InitializePeformanceMonitor();

            // Hide the CPU load monitor if running in Windows Vista
            // Detecting the CPU load is a security violation in Vista
            CPULoadBox.Visible = !bVista;

            // Setup the callback routine for updating the UI
            updateUI = new UpdateUICallback(StatusUpdate);

            // Setup the callback routine for NullReference exception handling
            handleException = new ExceptionCallback(ThreadException);

            // Create the list of USB devices attached to the CyUSB.sys driver.
            usbDevices = new USBDeviceList(CyConst.DEVICES_CYUSB);

            //Assign event handlers for device attachment and device removal.
            usbDevices.DeviceAttached += new EventHandler(usbDevices_DeviceAttached);
            usbDevices.DeviceRemoved += new EventHandler(usbDevices_DeviceRemoved);

            //Set and search the device with VID-PID 04b4-1003 and if found, selects the end point
            SetDevice();
        }


        /*Summary
           This is the event handler for device removal. This method resets the device count and searches for the device with 
           VID-PID 04b4-1003
        */
        void usbDevices_DeviceRemoved(object sender, EventArgs e)
        {
            MyDevice = null;
            EndPoint = null;
            SetDevice();
        }



        /*Summary
           This is the event handler for device attachment. This method  searches for the device with 
           VID-PID 04b4-1003
        */
        void usbDevices_DeviceAttached(object sender, EventArgs e)
        {
            SetDevice();
        }



        /*Summary
           Search the device with VID-PID 04b4-1003 and if found, select the end point
        */
        private void SetDevice()
        {
            USBDevice dev = usbDevices[0x04B4, 0x1003];

            if (dev != null)
            {
                MyDevice = (CyUSBDevice)dev;

                GetEndpointsOfNode(MyDevice.Tree);
                if (EndPointsComboBox.Items.Count > 0)
                {
                    EndPointsComboBox.SelectedIndex = 0;
                    StartBtn.Enabled = true;
                }
            }
            else
            {
                StartBtn.Enabled = false;
                EndPointsComboBox.Items.Clear();
                EndPointsComboBox.Text = "";
            }


        }



        /*Summary
           Recursive routine populates EndPointsComboBox with strings 
           representing all the endpoints in the device.
        */
        private void GetEndpointsOfNode(TreeNode devTree)
        {
            foreach (TreeNode node in devTree.Nodes)
            {
                if (node.Nodes.Count > 0)
                    GetEndpointsOfNode(node);
                else
                {
                    CyUSBEndPoint ept = node.Tag as CyUSBEndPoint;
                    if (ept == null)
                    {
                        //return;
                    }
                    else if (!node.Text.Contains("Control"))
                    {
                        CyUSBInterface ifc = node.Parent.Tag as CyUSBInterface;                        
                        string s = string.Format("ALT-{0}, {1} Byte, {2}", ifc.bAlternateSetting, ept.MaxPktSize, node.Text);
                        EndPointsComboBox.Items.Add(s);
                    }
                }
            }

        }




        /*Summary
           Clean up any resources being used.
        */
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }



        /*Summary
           This method is used to do the initialization for detecting the CPU load
        */
        private void InitializePeformanceMonitor()
        {
            // This isn't allowed in Vista.
            if (bVista) return;

            CpuCounter = new System.Diagnostics.PerformanceCounter();
            ((System.ComponentModel.ISupportInitialize)(CpuCounter)).BeginInit();

            CpuCounter.CategoryName = "Processor";
            CpuCounter.CounterName = "% Processor Time";
            CpuCounter.InstanceName = "_Total";

            ((System.ComponentModel.ISupportInitialize)(CpuCounter)).EndInit();

        }


        #region Windows Form Designer generated code

        private System.Windows.Forms.MainMenu mainMenu;
        private System.Windows.Forms.MenuItem menuItem1;
        private System.Windows.Forms.MenuItem menuItem2;
        private System.Windows.Forms.MenuItem ExitItem;
        private System.Windows.Forms.MenuItem menuItem3;
        private System.Windows.Forms.MenuItem AboutItem;
        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.Label label2;
        private System.Windows.Forms.Label label3;
        private System.Windows.Forms.Label label4;
        private System.Windows.Forms.ComboBox PpxBox;
        private System.Windows.Forms.ComboBox QueueBox;
        private System.Windows.Forms.TextBox SuccessBox;
        private System.Windows.Forms.GroupBox groupBox1;
        private System.Windows.Forms.ProgressBar ProgressBar;
        private System.Windows.Forms.Button StartBtn;
        private System.Windows.Forms.Label ThroughputLabel;
        private System.Windows.Forms.TextBox FailuresBox;
        private ComboBox EndPointsComboBox;
        private Label label5;
        private GroupBox CPULoadBox;
        private Label CpuLabel;
        private ProgressBar CpuBar;
        private System.Windows.Forms.Timer PerfTimer;

        private IContainer components;

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
            this.mainMenu = new System.Windows.Forms.MainMenu(this.components);
            this.menuItem1 = new System.Windows.Forms.MenuItem();
            this.menuItem2 = new System.Windows.Forms.MenuItem();
            this.ExitItem = new System.Windows.Forms.MenuItem();
            this.menuItem3 = new System.Windows.Forms.MenuItem();
            this.AboutItem = new System.Windows.Forms.MenuItem();
            this.label1 = new System.Windows.Forms.Label();
            this.label2 = new System.Windows.Forms.Label();
            this.label3 = new System.Windows.Forms.Label();
            this.label4 = new System.Windows.Forms.Label();
            this.PpxBox = new System.Windows.Forms.ComboBox();
            this.QueueBox = new System.Windows.Forms.ComboBox();
            this.SuccessBox = new System.Windows.Forms.TextBox();
            this.FailuresBox = new System.Windows.Forms.TextBox();
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.ThroughputLabel = new System.Windows.Forms.Label();
            this.ProgressBar = new System.Windows.Forms.ProgressBar();
            this.StartBtn = new System.Windows.Forms.Button();
            this.EndPointsComboBox = new System.Windows.Forms.ComboBox();
            this.label5 = new System.Windows.Forms.Label();
            this.CPULoadBox = new System.Windows.Forms.GroupBox();
            this.CpuLabel = new System.Windows.Forms.Label();
            this.CpuBar = new System.Windows.Forms.ProgressBar();
            this.PerfTimer = new System.Windows.Forms.Timer(this.components);
            this.groupBox1.SuspendLayout();
            this.CPULoadBox.SuspendLayout();
            this.SuspendLayout();
            // 
            // mainMenu
            // 
            this.mainMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem1,
            this.menuItem3});
            // 
            // menuItem1
            // 
            this.menuItem1.Index = 0;
            this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.menuItem2,
            this.ExitItem});
            this.menuItem1.Text = "File";
            // 
            // menuItem2
            // 
            this.menuItem2.Index = 0;
            this.menuItem2.Text = "-";
            // 
            // ExitItem
            // 
            this.ExitItem.Index = 1;
            this.ExitItem.Text = "Exit";
            this.ExitItem.Click += new System.EventHandler(this.ExitItem_Click);
            // 
            // menuItem3
            // 
            this.menuItem3.Index = 1;
            this.menuItem3.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.AboutItem});
            this.menuItem3.Text = "Help";
            // 
            // AboutItem
            // 
            this.AboutItem.Index = 0;
            this.AboutItem.Text = "About";
            this.AboutItem.Click += new System.EventHandler(this.AboutItem_Click);
            // 
            // label1
            //