Diff: ESP8266.cpp

Revision:

28:e5cdaf13d299

Parent:

27:81a87d29bedd

Child:

29:590a7561318b

--- a/ESP8266.cpp	Fri Dec 16 20:14:05 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,489 +0,0 @@
-/*******************************************************************************
-* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
-*
-* Permission is hereby granted, free of charge, to any person obtaining a
-* copy of this software and associated documentation files (the "Software"),
-* to deal in the Software without restriction, including without limitation
-* the rights to use, copy, modify, merge, publish, distribute, sublicense,
-* and/or sell copies of the Software, and to permit persons to whom the
-* Software is furnished to do so, subject to the following conditions:
-*
-* The above copyright notice and this permission notice shall be included
-* in all copies or substantial portions of the Software.
-*
-* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
-* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-* OTHER DEALINGS IN THE SOFTWARE.
-*
-* Except as contained in this notice, the name of Maxim Integrated
-* Products, Inc. shall not be used except as stated in the Maxim Integrated
-* Products, Inc. Branding Policy.
-*
-* The mere transfer of this software does not imply any licenses
-* of trade secrets, proprietary technology, copyrights, patents,
-* trademarks, maskwork rights, or any other form of intellectual
-* property whatsoever. Maxim Integrated Products, Inc. retains all
-* ownership rights.
-*******************************************************************************
-*/
-
-#include <cstdlib>
-#include "ESP8266.hpp"
-#include "Timer.h"
-#include "wait_api.h"
-
-ESP8266* ESP8266::defaultInstance = NULL;
-
-static inline void disableRecvData()
-{
-  __disable_irq();
-}
-
-static inline void enableRecvData()
-{
-  __enable_irq();
-}
-
-void ESP8266::setDefaultInstance(ESP8266 * const instance)
-{
-  if (instance != NULL)
-    defaultInstance = instance;
-}
-
-ESP8266** ESP8266::getDefaultInstance()
-{
-  return &defaultInstance;
-}
-
-ESP8266::ESP8266(const PinName tx, const PinName rx, const PinName rst, const PinName CH_PD, const int baud, mbed::Serial * debugMsgIntf)
-  : AT_intf(tx, rx), resetPin(rst), powerDownPin(CH_PD), debugMsg(debugMsgIntf), parseRecvReset(false)
-{
-  AT_intf.baud(baud);
-  AT_intf.attach(this, &ESP8266::recv_AT_data_cb);
-  
-  // Ensure that device is not held in reset
-  if (resetPin.is_connected())
-    resetPin = 1;
-  // Power down device at startup due to high current demand
-  setPowered(false);
-  
-  if (defaultInstance == NULL)
-    defaultInstance = this;
-}
-
-ESP8266::~ESP8266()
-{
-  if (defaultInstance == this)
-    defaultInstance = NULL;
-}
-
-void ESP8266::reset()
-{
-  if (resetPin.is_connected())
-  {
-    resetPin = 0;
-    wait_ms(100);
-    resetPin = 1;
-    wait_ms(1000);
-  }
-}
-
-bool ESP8266::powered() const
-{
-  bool isPowered;
-  if (powerDownPin.is_connected())
-  {
-    isPowered = powerDownPin.read();
-  }
-  else
-  {
-    isPowered = false;
-  }
-  return isPowered;
-}
-
-void ESP8266::setPowered(bool powered)
-{
-  if (powerDownPin.is_connected())
-    powerDownPin = powered;
-}
-
-ESP8266::CmdResult ESP8266::performSelfTest()
-{
-  return sendCommand(CmdBuilder(""));
-}
-
-ESP8266::CmdResult ESP8266::setCurrentWifiMode(const ESP8266::WifiMode mode)
-{
-  CmdBuilder builder("CWMODE_CUR");
-  builder.addRawArgument(mode);
-  return sendCommand(builder);
-}
-
-ESP8266::CmdResult ESP8266::joinCurrentAccessPoint(const std::string & ssid, const std::string & pwd, const std::string & bssid)
-{
-  CmdBuilder builder("CWJAP_CUR");
-  builder.addStringArgument(ssid);
-  builder.addStringArgument(pwd);
-  if (bssid != "")
-    builder.addStringArgument(bssid);
-  return sendCommand(builder);
-}
-
-ESP8266::CmdResult ESP8266::quitAccessPoint()
-{
-  return sendCommand(CmdBuilder("CWQAP"));
-}
-
-ESP8266::CmdResult ESP8266::setMaxRFTXPower(const float power_dBm)
-{
-  int power_arg = (int)(power_dBm * 4);
-  if (power_arg > 82)
-    power_arg = 82;
-  else if (power_arg < 0)
-    power_arg = 0;
-  
-  CmdBuilder builder("RFPOWER");
-  builder.addRawArgument(power_arg);
-  return sendCommand(builder);
-}
-
-ESP8266::CmdResult ESP8266::ping(const std::string & IP)
-{
-  CmdBuilder builder("PING");
-  builder.addStringArgument(IP);
-  return sendCommand(builder);
-}
-
-ESP8266::CmdResult ESP8266::openConnection(const ESP8266::ConnType type, const std::string & remoteIP, const unsigned int remotePort)
-{
-  CmdBuilder builder("CIPSTART");
-  builder.addStringArgument((type == TCP) ? "TCP" : "UDP");
-  builder.addStringArgument(remoteIP);
-  builder.addRawArgument(remotePort);
-  return sendCommand(builder);
-}
-
-ESP8266::CmdResult ESP8266::closeConnection()
-{
-  return sendCommand(CmdBuilder("CIPCLOSE"));
-}
-
-ESP8266::CmdResult ESP8266::sendData(const std::string & data)
-{
-  CmdBuilder builder("CIPSEND");
-  builder.addRawArgument(data.length());
-  ESP8266::CmdResult result = sendCommand(builder);
-  if (result == ESP8266::AT_OK)
-    result = send_AT_data(data, false);
-  return result;
-}
-
-ESP8266::CmdResult ESP8266::sendCommand(const CmdBuilder & cmd)
-{
-  return send_AT_data(cmd.str(), true);
-}
-
-bool ESP8266::recvIpDataReadable()
-{
-  bool result;
-  
-  disableRecvData(); // Lock queue access
-  
-  result = !recvIpDataBuffer.empty();
-  
-  enableRecvData(); // Unlock queue access
-  
-  return result;
-}
-
-char ESP8266::getcRecvIpData()
-{
-  char received;
-  
-  disableRecvData(); // Lock queue access
-  
-  // Pop next char or set to NTC if not data in buffer
-  if (!recvIpDataBuffer.pop(received))
-    received = '\0';
-  
-  enableRecvData(); // Unlock queue access
-  
-  return received;
-}
-
-void ESP8266::clearRecvData()
-{
-    disableRecvData(); // Lock queue access
-    
-    recvIpDataBuffer.reset();
-    parseRecvReset = true;
-    
-    enableRecvData(); // Unlock queue access
-}
-
-ESP8266::CmdResult ESP8266::send_AT_data(const std::string & cmdString, const bool expectEcho)
-{
-  const int timeout_ms = 10000;
-  
-  mbed::Timer timer;
-  ESP8266::CmdResult result = ESP8266::HardwareError;
-  std::string response;
-  
-  disableRecvData(); // Lock for manual data handling in this procedure
-  
-  // Flush receive buffer
-  while (AT_intf.readable())
-    AT_intf.getc();
-  
-  // Begin counting for timeout
-  timer.start();
-  
-  for (size_t i = 0; i < cmdString.length(); i++)
-  {
-    // Write next character
-    while (!AT_intf.writeable())
-    {
-      if (timer.read_ms() > timeout_ms)
-      {
-        result = TimeoutError;
-        goto exit;
-      }
-    }
-    AT_intf.putc(cmdString[i]);
-    // Wait for echo
-    if (expectEcho && (cmdString[i] != '\r') && (cmdString[i] != '\n'))
-    {
-      while (!AT_intf.readable())
-      {
-        if (timer.read_ms() > timeout_ms)
-        {
-          result = TimeoutError;
-          goto exit;
-        }
-      }
-      // Compare to written character
-      if (AT_intf.getc() != cmdString[i])
-      {
-        // Handle error
-        result = ESP8266::HardwareError;
-        goto exit;
-      }
-    }
-  }
-  
-  while (result == ESP8266::HardwareError)
-  {
-    // Wait to receive something
-    response.clear();
-    while (!read_line(response)) ;
-    
-    // Check if valid response
-    if (response == "OK")
-      result = ESP8266::AT_OK;
-    else if (response == "FAIL")
-      result = ESP8266::AT_FAIL;
-    else if (response == "ERROR")
-      result = ESP8266::AT_ERROR;
-    else if (response == "SEND OK") // Used by AT+CIPSEND
-      result = ESP8266::AT_OK;
-    else if (response == "ALREADY CONNECT") // Used by AT+CIPSTART
-      result = ESP8266::AT_OK;
-    
-    if (timer.read_ms() > timeout_ms)
-    {
-      result = TimeoutError;
-      break;
-    }
-  }
-  
-exit:
-  enableRecvData(); // Enable interrupt processing
-  return result;
-}
-
-bool ESP8266::read_line(std::string & line)
-{
-  char received;
-  
-  while (AT_intf.readable())
-  {
-    received = AT_intf.getc();
-    if (received == '\n')
-    {
-      return true;
-    }
-    else if (received != '\r')
-    {
-      line.push_back(received);
-    }
-  }
-  return false;
-}
-
-void ESP8266::recv_AT_data_cb()
-{
-  while (AT_intf.readable())
-  {
-    char received = AT_intf.getc();
-    parseRecvIpData(received);
-    parseRecvConnClosedMsg(received);
-    parseRecvReset = false;
-  }
-}
-
-void ESP8266::parseRecvIpData(const char received)
-{
-  enum DataRecvState
-  {
-    Header,
-    Length,
-    Data,
-    Reset
-  };
-  
-  static const char findChars[] = "+IPD,";
-  static const size_t maxSizeDigits = 4;
-  
-  static size_t dataFinishedSize = 0;
-  static size_t index = 0;
-  static char sizeDigits[] = { '\0', '\0', '\0', '\0', '\0' };
-  static DataRecvState state = Header;
-  
-  if (parseRecvReset)
-    state = Reset;
-    
-  switch (state)
-  {
-  case Reset:
-  default:
-    index = 0;
-    dataFinishedSize = 0;
-    state = Header;
-    // Continue processing switch
-    
-  case Header:
-    if (received == findChars[index])
-    {
-      if (findChars[++index] == '\0')
-      {
-        index = 0;
-        state = Length;
-      }
-    }
-    else
-    {
-      state = Reset;
-    }
-    break;
-    
-  case Length:    
-    if ((received <= '9') && (received >= '0'))
-    {
-      if (index < maxSizeDigits)
-      {
-        sizeDigits[index++] = received;
-      }
-      else
-      {
-        state = Reset;
-      }
-    }
-    else if (received == ':')
-    {
-      dataFinishedSize = std::atoi(sizeDigits);
-      if (dataFinishedSize == 0)
-      {
-        state = Reset;
-      }
-      else
-      {
-        index = 0;
-        state = Data;
-      }
-    }
-    else
-    {
-      state = Reset;
-    }
-    break;
-  
-  case Data:
-    if (index < dataFinishedSize)
-    {
-      recvIpDataBuffer.push(received);
-      index++;
-    }
-    else
-    {
-      state = Reset;
-    }
-    break;
-  };
-}
-
-void ESP8266::parseRecvConnClosedMsg(const char received)
-{
-  static const char findChars[] = "CLOSED";
-  
-  static int index = 0;
-  
-  bool shouldReset = parseRecvReset;
-  
-  if (received == findChars[index])
-  {
-    if (findChars[++index] == '\0')
-    {
-      printDbgMsg(findChars);
-      shouldReset = true;
-    }
-  }
-  else
-  {
-    shouldReset = true;
-  }
-  
-  if (shouldReset)
-  {
-    index = 0;
-  }
-}
-
-void ESP8266::printDbgMsg(const char * message)
-{
-  if (debugMsg != NULL)
-    debugMsg->printf("%s", message);
-}
-
-ESP8266::CmdBuilder::CmdBuilder(const std::string & cmd)
-{
-  clear(cmd);
-}
-
-void ESP8266::CmdBuilder::clear(const std::string & cmd)
-{
-  numArgs = 0;
-  cmdStream.str("");
-  
-  cmdStream << "AT";
-  if (cmd != "")
-    cmdStream << "+" << cmd;
-}
-
-void ESP8266::CmdBuilder::addStringArgument(const std::string & arg)
-{
-  std::ostringstream argStream;
-  argStream << "\"" << arg << "\"";
-  addRawArgument<std::string>(argStream.str());
-}
-
-std::string ESP8266::CmdBuilder::str() const
-{
-  std::string cmdString = cmdStream.str();
-  cmdString.append("\r\n");
-  return cmdString;
-}
\ No newline at end of file