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Form1.cs
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Form1.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Net;
using System.Net.NetworkInformation;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace usbpv_server_demo_cs
{
public partial class Form1 : Form
{
public const byte CMD_START_FLAG = (byte)'X';
// command
public const byte CMD_LIST = (byte)'L';
public const byte CMD_OPEN = (byte)'O';
public const byte CMD_CLOSE = (byte)'C';
// response
public const byte CMD_R_PASS = (byte)'P';
public const byte CMD_R_ERROR = (byte)'E';
// data
public const byte CMD_D_BUS = (byte)'B';
public const byte CMD_D_US = (byte)'0';
public const byte CMD_D_LS = (byte)'1';
public const byte CMD_D_FS = (byte)'2';
public const byte CMD_D_HS = (byte)'3';
// speed
public const byte SPEED_HS = (byte)0;
public const byte SPEED_FS = (byte)1;
public const byte SPEED_LS = (byte)2;
public const byte SPEED_AUTO = (byte)3;
// bus event
public const byte PT_RESET_BEGIN = (byte)1;
public const byte PT_RESET_END = (byte)2;
public const byte PT_SUSPEND_BEGIN = (byte)3;
public const byte PT_SUSPEND_END = (byte)4;
public const byte PT_OVERFLOW = (byte)0xf;
private SynchronizationContext m_uiContext;
private TcpClient m_tcpClient = new TcpClient();
private UdpClient m_udpClient = null;
const int RECV_BUFF_LEN = 4096;
private byte[] m_readBuffer = new byte[RECV_BUFF_LEN];
private bool m_tcpMode = false;
public Form1()
{
InitializeComponent();
m_uiContext = SynchronizationContext.Current;
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void Log(string info)
{
textLog.AppendText(info);
textLog.AppendText("\r\n");
}
void LogInOtherThread(string info)
{
m_uiContext.Post((obj) =>
{
Log(info);
}, null);
}
private void TcpAsyncConnect(IAsyncResult res)
{
try
{
m_tcpClient.EndConnect(res);
m_uiContext.Post((obj)=>
{
Log("Connect success");
TcpConnectionChanged(true);
}, null);
m_tcpClient.GetStream().BeginRead(m_readBuffer, 0, RECV_BUFF_LEN,TcpAsyncReadDone,null);
return;
}
catch(Exception e)
{
m_uiContext.Post((obj) =>
{
Log("Connect fail. " + e.ToString());
TcpConnectionChanged(false);
}, null);
}
}
private void TcpAsyncReadDone(IAsyncResult res)
{
try
{
int len = m_tcpClient.GetStream().EndRead(res);
IncomingData(m_readBuffer, len);
m_tcpClient.GetStream().BeginRead(m_readBuffer, 0, RECV_BUFF_LEN, TcpAsyncReadDone, null);
}
catch (Exception e)
{
m_uiContext.Post((obj) =>
{
Log("Read fail. Connection loss");
TcpConnectionChanged(false);
}, null);
}
}
private void TcpAsyncSendDone(IAsyncResult res)
{
try
{
m_tcpClient.GetStream().EndWrite(res);
}
catch (Exception e)
{
m_uiContext.Post((obj) =>
{
Log("Write fail. " + e.ToString());
}, null);
}
}
private void TcpConnectionChanged(bool isConnected)
{
if (isConnected)
{
btnConnect.Text = "Stop TCP";
}
else
{
btnConnect.Text = "Start TCP";
btnUDP.Enabled = true;
}
btnConnect.Enabled = true;
}
private void UdpAsyncReadDone(IAsyncResult res)
{
if (m_udpClient != null)
{
try
{
IPEndPoint ep = new IPEndPoint(0, 0);
byte[] data = m_udpClient.EndReceive(res, ref ep);
IncomingData(data, data.Length);
m_udpClient.BeginReceive(UdpAsyncReadDone, null);
}
catch (Exception e)
{
}
}
}
private void IncomingData(byte[] buf, int len)
{
for (int i = 0; i < len; i++) {
ProcessByte(buf[i]);
}
}
private void SendCommand(byte[] data, int len)
{
Log("Send data: " + BitConverter.ToString(data, 0).Replace("-", string.Empty).ToLower());
if (m_tcpMode)
{
if (m_tcpClient.Connected)
{
m_tcpClient.GetStream().BeginWrite(data, 0, len, TcpAsyncSendDone, null);
}
}
else
{
if (m_udpClient != null) {
m_udpClient.Send(data, len);
}
}
}
private int state = ST_INIT;
public const int ST_INIT = 1;
public const int ST_CMD = 2;
public const int ST_LEN1 = 3;
public const int ST_LEN2 = 4;
public const int ST_DATA = 5;
public int cmd_len;
public int recv_cmd_len;
public byte cmd;
public byte[] cmd_buff = new byte[RECV_BUFF_LEN];
private void ProcessByte(byte b)
{
switch (state) {
case ST_INIT:
if (b == CMD_START_FLAG) {
state = ST_CMD;
}
break;
case ST_CMD:
state = ST_LEN1;
cmd_len = 0;
recv_cmd_len = 0;
cmd = b;
break;
case ST_LEN1:
state = ST_LEN2;
cmd_len = b;
break;
case ST_LEN2:
cmd_len = cmd_len + (b << 8);
if (cmd_len == 0)
{
state = ST_INIT;
OnCommand(cmd, cmd_buff, 0);
}
else if (cmd_len <= RECV_BUFF_LEN - 4)
{
state = ST_DATA;
}
else {
LogInOtherThread("cmd length error");
state = ST_INIT;
OnCommand(cmd, cmd_buff, 0);
}
break;
case ST_DATA:
cmd_buff[recv_cmd_len] = b;
recv_cmd_len++;
if (recv_cmd_len == cmd_len) {
state = ST_INIT;
OnCommand(cmd, cmd_buff, recv_cmd_len);
}
break;
default:
if (b == CMD_START_FLAG)
{
state = ST_CMD;
}
break;
}
}
UInt32 GetUint32(byte[] data, int pos) {
return (UInt32)(data[0+pos] | (data[1+pos] << 8) | (data[2+pos] << 16) | (data[3+pos]<<24));
}
System.IO.StreamWriter logger = null;
const String hex = "0123456789ABCDEF";
String toHex(byte[] data, int len) {
if (len <= 0) len = data.Length;
StringBuilder sb = new StringBuilder(len * 2);
for (int i = 0; i < len; i++) {
sb.Append(hex[data[i]>>4]);
sb.Append(hex[data[i]&0x0f]);
}
return sb.ToString();
}
byte[] fromHex(String hex) {
byte[] res = new byte[hex.Length / 2];
for (int i = 0; i < hex.Length; i+=2) {
res[i/2] = Convert.ToByte(hex.Substring(i, 2), 16);
}
return res;
}
private Int64 pkt_count = 0;
private void OnCommand(byte cmd, byte[] data, int len, bool log = true)
{
if (logger != null && log)
{
logger.Write((char)cmd);
logger.Write(toHex(data, len));
logger.WriteLine();
logger.Flush();
}
string speed = "unknown";
bool hasData = false;
switch (cmd) {
case CMD_R_PASS:
string info = "";
if (len > 0) {
info = System.Text.Encoding.ASCII.GetString(data, 0, len);
}
LogInOtherThread("Response pass " + info);
break;
case CMD_R_ERROR:
string err = "";
if (len > 0) {
err = "Error Code: " + data[0];
}
if (len > 1) {
err += " Sub Code: " + data[1];
}
LogInOtherThread("Response fail " + err);
break;
case CMD_D_BUS:
if (len < 10)
{
LogInOtherThread("Wrong bus event length " + len);
}
else {
UInt32 ts = GetUint32(data, 0);
UInt32 nano = GetUint32(data, 4);
switch (data[8]) {
case PT_RESET_BEGIN: LogInOtherThread("Reset Begin: "+ ts + "." + nano); break;
case PT_RESET_END: LogInOtherThread("Reset End: " + ts + "." + nano); break;
case PT_SUSPEND_BEGIN: LogInOtherThread("Suspend Begin: " + ts + "." + nano); break;
case PT_SUSPEND_END: LogInOtherThread("Suspend End: " + ts + "." + nano); break;
case PT_OVERFLOW: LogInOtherThread("Overflow " + data[9] + ": " + ts + "." + nano); break;
default: LogInOtherThread("Bus Event Unknown"); break;
}
}
break;
case CMD_D_US: speed = "US"; hasData = true; break;
case CMD_D_LS: speed = "LS"; hasData = true; break;
case CMD_D_FS: speed = "FS"; hasData = true; break;
case CMD_D_HS: speed = "HS"; hasData = true; break;
default:
LogInOtherThread("Response Unknown"); break;
}
if (hasData) {
if (len >= 9)
{
pkt_count++;
if (fwData(data, len)) {
return;
}
UInt32 ts = GetUint32(data, 0);
UInt32 nano = GetUint32(data, 4);
//LogInOtherThread("Got " + speed + " data " + ts + "." + nano + " data len " + (len - 8) + " PID " + (data[8] & 0x0f));
}
else {
LogInOtherThread("Wrong data len " + len);
}
}
}
private void btnList_Click(object sender, EventArgs e)
{
SendCommand(new byte[] { CMD_START_FLAG, CMD_LIST, 0, 0 }, 4);
}
private void btnOpenDevice_Click(object sender, EventArgs e)
{
byte[] sn = System.Text.Encoding.ASCII.GetBytes(textSN.Text);
if (sn.Length == 0) {
OpenFileDialog dlg = new OpenFileDialog();
dlg.Title = "Replay a log file";
dlg.Filter = "Log file|*.log";
if (dlg.ShowDialog() == DialogResult.OK) {
System.IO.StreamReader reader = new System.IO.StreamReader(dlg.FileName);
int line_count = 0;
do {
String ln = reader.ReadLine();
if (ln.Length > 10) {
byte cmd = (byte)ln[0];
byte[] cmd_data = fromHex(ln.Substring(1));
OnCommand(cmd, cmd_data, cmd_data.Length, false);
}
line_count++;
} while (!reader.EndOfStream);
Log("Load "+line_count+" lines data");
return;
}
}
byte[] data = new byte[4 + sn.Length + 2];
data[0] = CMD_START_FLAG;
data[1] = CMD_OPEN;
data[2] = (byte)((sn.Length + 2) & 0xff);
data[3] = (byte)((sn.Length + 2) >> 8);
Array.Copy(sn, 0, data, 4, sn.Length);
data[4 + sn.Length] = 0;
byte speed = SPEED_AUTO;
switch (comboSpeed.SelectedIndex)
{
case 0: speed = SPEED_HS; break;
case 1: speed = SPEED_FS; break;
case 2: speed = SPEED_LS; break;
case 3: speed = SPEED_AUTO; break;
}
data[5 + sn.Length] = speed;
SendCommand(data, data.Length);
pkt_count = 0;
if (logger == null)
{
logger = new System.IO.StreamWriter("upv_client_demo.log");
Log("Received data will store in upv_client_demo.log");
}
countTimer.Start();
}
private void btnCloseDevice_Click(object sender, EventArgs e)
{
SendCommand(new byte[] { CMD_START_FLAG, CMD_CLOSE, 0, 0 }, 4);
countTimer.Stop();
}
private void btnClearLog_Click(object sender, EventArgs e)
{
textLog.Clear();
}
private void btnUDP_Click(object sender, EventArgs e)
{
if (m_udpClient == null)
{
m_udpClient = new UdpClient();
m_udpClient.Connect(textIP.Text, int.Parse(textPort.Text));
btnUDP.Text = "Stop UDP";
btnConnect.Enabled = false;
m_udpClient.BeginReceive(UdpAsyncReadDone, null);
}
else {
m_udpClient.Close();
m_udpClient = null;
btnUDP.Text = "Start UDP";
btnConnect.Enabled = true;
}
}
private void btnConnect_Click(object sender, EventArgs e)
{
btnUDP.Enabled = false;
if (m_tcpClient.Connected)
{
m_tcpClient.Close();
TcpConnectionChanged(false);
btnUDP.Enabled = true;
m_tcpMode = false;
}
else
{
m_tcpMode = true;
m_tcpClient = new TcpClient();
m_tcpClient.BeginConnect(
IPAddress.Parse(textIP.Text),
Int32.Parse(textPort.Text),
TcpAsyncConnect, null);
btnConnect.Enabled = false;
}
}
private TcpClient m_fwTcpClient = new TcpClient();
private UdpClient m_fwUdpClient = null;
private byte[] m_fwReadBuffer = new byte[RECV_BUFF_LEN];
private bool m_fwTcpMode = false;
private void fwAsyncRead(IAsyncResult resRead){
try
{
int len = m_fwTcpClient.GetStream().EndRead(resRead);
//LogInOtherThread("FWTCP Got " + len + " bytes data");
if (len <= 0)
{
m_fwTcpClient.Close();
FwTcpConnectionChanged(false);
}
else
{
m_fwTcpClient.GetStream().BeginRead(m_fwReadBuffer, 0, RECV_BUFF_LEN, fwAsyncRead, null);
}
}
catch (Exception e2)
{
m_uiContext.Post((obj) =>
{
LogInOtherThread("Read fail. Connection loss" + e2.ToString());
FwTcpConnectionChanged(false);
}, null);
}
}
private void FwTcpConnectionChanged(bool isConnected)
{
if (isConnected)
{
btnFWTcp.Text = "Stop TCP";
}
else
{
btnFWTcp.Text = "Start TCP";
btnFWUdp.Enabled = true;
}
btnFWTcp.Enabled = true;
}
private void FwTcpAsyncConnect(IAsyncResult res)
{
try
{
m_fwTcpClient.EndConnect(res);
m_uiContext.Post((obj) =>
{
Log("FW Connect success");
FwTcpConnectionChanged(true);
}, null);
m_fwTcpClient.GetStream().BeginRead(m_fwReadBuffer, 0, RECV_BUFF_LEN, fwAsyncRead, null);
return;
}
catch (Exception e)
{
m_uiContext.Post((obj) =>
{
Log("FW Connect fail. " + e.ToString());
FwTcpConnectionChanged(false);
}, null);
}
}
private void btnFWTcp_Click(object sender, EventArgs e)
{
btnFWUdp.Enabled = false;
if (m_fwTcpClient.Connected)
{
m_fwTcpClient.Close();
FwTcpConnectionChanged(false);
btnFWUdp.Enabled = true;
m_fwTcpMode = false;
}
else
{
m_fwTcpMode = true;
m_fwTcpClient = new TcpClient();
m_fwTcpClient.BeginConnect(
IPAddress.Parse(textFWIP.Text),
Int32.Parse(textFWPort.Text), FwTcpAsyncConnect, null);
btnFWTcp.Enabled = false;
mFwEp = Int32.Parse(textFWEP.Text);
mFwPid = 0;
switch (comboEpType.SelectedIndex)
{
case 1: mFwPid = PID_IN; break;
case 2: mFwPid = PID_OUT; break;
}
}
}
private void FWUdpAsyncReadDone(IAsyncResult res)
{
if (m_udpClient != null)
{
try
{
IPEndPoint ep = new IPEndPoint(0, 0);
byte[] data = m_fwUdpClient.EndReceive(res, ref ep);
//LogInOtherThread("UDP fw got " + data.Length + " bytes data");
m_fwUdpClient.BeginReceive(FWUdpAsyncReadDone, null);
}
catch (Exception e)
{
}
}
}
private void btnFWUdp_Click(object sender, EventArgs e)
{
if (m_fwUdpClient == null)
{
m_fwUdpClient = new UdpClient();
m_fwUdpClient.Connect(textFWIP.Text, int.Parse(textFWPort.Text));
btnFWUdp.Text = "Stop UDP";
btnFWTcp.Enabled = false;
m_fwUdpClient.BeginReceive(FWUdpAsyncReadDone, null);
mFwEp = Int32.Parse(textFWEP.Text);
mFwPid = 0;
switch (comboEpType.SelectedIndex)
{
case 1: mFwPid = PID_IN; break;
case 2: mFwPid = PID_OUT; break;
}
}
else
{
m_fwUdpClient.Close();
m_fwUdpClient = null;
btnFWUdp.Text = "Start UDP";
btnFWTcp.Enabled = true;
}
}
private static int PID_IN = 0x69;
private static int PID_OUT = 0xe1;
private static int PID_DATA0 = 0xC3;
private static int PID_DATA1 = 0x4b;
private bool fwWaitData = false;
private int mFwEp = -1;
private int mFwPid = 0;
private bool fwData(byte[] data, int len) {
if (m_fwUdpClient == null && (!m_fwTcpClient.Connected))
{
return false;
}
if (len < 11) {
return true;
}
if (fwWaitData) {
if (data[8] == PID_DATA0 || data[8] == PID_DATA1) {
if (len > 3) {
fwPureData(data, 1, len-3);
}
fwWaitData = false;
}
return true;
}
if (data[8] != PID_IN && data[8] != PID_OUT) {
return true;
}
if (mFwPid != 0) {
if (data[9] != mFwPid) {
return true;
}
}
int tEp = ((data[9] >> 7) & 0x01) | ((data[10]<<1) &0x0e);
if (mFwEp >= 0)
{
if (tEp == mFwEp)
{
fwWaitData = true;
}
}
else {
fwWaitData = true;
}
//LogInOtherThread("got In/Out " + String.Format("{0:x2} ", data[9]) + String.Format("{0:x2}", mFwPid)+ " " + fwWaitData + " " + tEp);
return true;
}
private void fwPureData(byte[] data, int offset, int len)
{
if (m_fwUdpClient != null)
{
byte[] buff = new byte[len];
for (int i = 0; i < len; i++)
{
buff[i] = data[i + offset];
}
m_fwUdpClient.Send(buff, len);
}
if (m_fwTcpClient.Connected)
{
m_fwTcpClient.GetStream().BeginWrite(data, offset, len, (IAsyncResult res) => {
try
{
m_fwTcpClient.GetStream().EndWrite(res);
}
catch (Exception e)
{
m_uiContext.Post((obj) =>
{
Log("Write fail. " + e.ToString());
}, null);
}
}, null);
}
}
private void countTimer_Tick(object sender, EventArgs e)
{
Log("Got " + pkt_count + " packets");
}
}
}