860 lines
16 KiB
C++
860 lines
16 KiB
C++
#include "Sys.h"
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#include "Task.h"
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#include "Time.h"
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#include "Esp8266.h"
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#include "EspTcp.h"
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#include "EspUdp.h"
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#include "WaitExpect.h"
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#include "Config.h"
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#define NET_DEBUG DEBUG
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//#define NET_DEBUG 0
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#if NET_DEBUG
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#define net_printf debug_printf
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#else
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#define net_printf(format, ...)
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#endif
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/*
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注意事项
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1、设置模式AT+CWMODE需要重启后生效AT+RST
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2、AP模式下查询本机IP无效，可能会造成死机
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3、开启server需要多连接作为基础AT+CIPMUX=1
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4、单连接模式，多连接模式 收发数据有参数个数区别
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*/
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/******************************** Esp8266 ********************************/
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Esp8266::Esp8266(ITransport* port, Pin power, Pin rst)
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{
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Set(port);
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if(power != P0) _power.Init(power, false);
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if(rst != P0) _rst.Init(rst, true);
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AutoConn = false;
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Led = nullptr;
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NetReady = nullptr;
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_Expect = nullptr;
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Buffer(_sockets, 5 * 4).Clear();
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Mode = SocketMode::STA_AP;
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SSID = new String();
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Pass = new String();
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}
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Esp8266::~Esp8266()
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{
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delete SSID;
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delete Pass;
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}
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void Esp8266::OpenAsync()
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{
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if(Opened) return;
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Sys.AddTask([](void* param) { ((Esp8266*)param)->Open(); }, this, 0, -1, "Esp8266");
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}
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bool Esp8266::OnOpen()
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{
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if(!PackPort::OnOpen()) return false;
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// 先关一会电，然后再上电，让它来一个完整的冷启动
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if (!_power.Empty())
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{
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_power.Open(); // 使用前必须Open；
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_power.Down(20);
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}
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if (!_rst.Empty()) _rst.Open(); // 使用前必须Open；
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// 每两次启动会有一次打开失败，交替
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if(!_rst.Empty())
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Reset(false); // 硬重启
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else
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Reset(true); // 软件重启命令
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// 如果首次加载，则说明现在处于出厂设置模式，需要对模块恢复出厂设置
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auto cfg = Config::Current->Find("NET");
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//if(!cfg) Restore();
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for(int i=0; i<2; i++)
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{
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// 等待模块启动进入就绪状态
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if(!WaitForCmd("ready", 3000))
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{
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if (!Test())
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{
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net_printf("Esp8266::Open 打开失败！");
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return false;
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}
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}
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if(cfg || i==1) break;
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Restore();
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}
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// 开回显
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Echo(true);
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#if NET_DEBUG
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// 获取版本
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auto ver = GetVersion();
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//net_printf("版本:");
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//ver.Show(true);
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#endif
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// 默认Both
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if(Mode == SocketMode::Wire) Mode = SocketMode::STA_AP;
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if (GetMode() != Mode)
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{
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if(!SetMode(Mode))
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{
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net_printf("设置Station模式失败！");
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return false;
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}
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}
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Config();
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SetDHCP(Mode, true);
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// 等待WiFi自动连接
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if(!AutoConn || !WaitForCmd("WIFI CONNECTED", 3000))
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{
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if (!SSID || !*SSID || Mode == SocketMode::STA_AP)
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{
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net_printf("启动AP模式!\r\n");
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String wifiName = "WsLink-";
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wifiName += Buffer(Sys.ID, 3).ToHex();
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int chn = (Sys.Ms() % 14) + 1;
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SetAP(wifiName, "", chn, 0, 1, 1);
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}
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if (SSID && *SSID)
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{
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if (!JoinAP(*SSID, *Pass)) // Pass 可以为空
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{
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net_printf("连接WiFi失败！\r\n");
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return false;
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}
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}
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}
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// 拿到IP，网络就绪
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if(Mode == SocketMode::Station || Mode == SocketMode::STA_AP)
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{
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IP = GetIP(true);
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SaveConfig();
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ShowConfig();
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}
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if(NetReady) NetReady(this);
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return true;
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}
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void Esp8266::OnClose()
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{
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_power.Close();
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_rst.Close();
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PackPort::OnClose();
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}
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// 配置网络参数
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void Esp8266::Config()
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{
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// 设置多连接
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SetMux(true);
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// 设置IPD
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SetIPD(true);
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auto mac = Mac;
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SetMAC(true, mac);
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mac[5]++;
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SetMAC(false, mac);
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SetAutoConn(AutoConn);
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}
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ISocket* Esp8266::CreateSocket(ProtocolType type)
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{
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auto es = (EspSocket**)_sockets;
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int i = 0;
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for(i = 0; i < 5; i++)
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{
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if(es[i] == nullptr) break;
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}
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if(i >= 5 )
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{
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net_printf("没有空余的Socket可用了 !\r\n");
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return nullptr;
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}
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switch(type)
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{
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case ProtocolType::Tcp:
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return es[i] = new EspTcp(*this, i);
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case ProtocolType::Udp:
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return es[i] = new EspUdp(*this, i);
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default:
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return nullptr;
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}
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}
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// 启用DNS
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bool Esp8266::EnableDNS() { return true; }
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// 启用DHCP
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bool Esp8266::EnableDHCP() { Mode = SocketMode::STA_AP; return true;/* return SetDHCP(SocketMode::Both, true); */}
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// 发送指令，在超时时间内等待返回期望字符串，然后返回内容
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String Esp8266::Send(const String& cmd, cstring expect, cstring expect2, uint msTimeout)
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{
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TS("Esp8266::Send");
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String rs;
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auto& task = Task::Current();
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// 判断是否正在发送其它指令
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if(_Expect)
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{
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#if NET_DEBUG
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auto w = (WaitExpect*)_Expect;
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net_printf("Esp8266::Send %d 正在发送 ", w->TaskID);
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if(w->Command)
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w->Command->Trim().Show(false);
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else
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net_printf("数据");
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net_printf(" ，%d 无法发送 ", task.ID);
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cmd.Trim().Show(true);
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#endif
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return rs;
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}
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// 在接收事件中拦截
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WaitExpect we;
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we.TaskID = task.ID;
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//we.Command = &cmd;
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we.Result = &rs;
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we.Key1 = expect;
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we.Key2 = expect2;
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_Expect = &we;
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#if NET_DEBUG
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bool EnableLog = true;
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#endif
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if(cmd)
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{
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// 设定小灯快闪时间，单位毫秒
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if(Led) Led->Write(50);
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Port->Write(cmd);
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#if NET_DEBUG
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// 只有AT指令显示日志
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if(!cmd.StartsWith("AT") || (expect && expect[0] == '>')) EnableLog = false;
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if(EnableLog)
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{
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we.Command = &cmd;
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net_printf("%d=> ", task.ID);
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cmd.Trim().Show(true);
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}
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#endif
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}
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we.Wait(msTimeout);
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if(_Expect == &we) _Expect = nullptr;
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//if(rs.Length() > 4) rs.Trim();
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#if NET_DEBUG
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if(EnableLog && rs)
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{
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net_printf("%d<= ", task.ID);
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rs.Trim().Show(true);
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}
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#endif
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return rs;
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}
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// 发送命令，自动检测并加上\r\n，等待响应OK
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bool Esp8266::SendCmd(const String& cmd, uint msTimeout)
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{
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TS("Esp8266::SendCmd");
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static const cstring ok = "OK";
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static const cstring err = "ERROR";
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String cmd2;
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// 只有AT指令需要检查结尾，其它指令不检查，避免产生拷贝
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auto p = &cmd;
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if(cmd.StartsWith("AT") && !cmd.EndsWith("\r\n"))
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{
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cmd2 = cmd;
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cmd2 += "\r\n";
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p = &cmd2;
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}
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// 二级拦截。遇到错误也马上结束
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auto rt = Send(*p, ok, err, msTimeout);
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return rt.Contains(ok);
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}
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bool Esp8266::WaitForCmd(cstring expect, uint msTimeout)
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{
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String rs;
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// 在接收事件中拦截
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WaitExpect we;
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we.Result = &rs;
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we.Key1 = expect;
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we.Capture = false;
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_Expect = &we;
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// 等待收到数据
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bool rt = we.Wait(msTimeout);
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_Expect = nullptr;
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return rt;
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}
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void ParseFail(cstring name, const Buffer& bs)
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{
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#if NET_DEBUG
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if(bs.Length() == 0) return;
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int p = 0;
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if(p < bs.Length() && bs[p] == ' ') p++;
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if(p < bs.Length() && bs[p] == '\r') p++;
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if(p < bs.Length() && bs[p] == '\n') p++;
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// 无法识别的数据可能是空格前缀，需要特殊处理
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auto str = bs.Sub(p, -1).AsString();
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if(str)
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{
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net_printf("Esp8266:%s 无法识别[%d]：", name, bs.Length());
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//if(bs.Length() == 2) net_printf("%02X %02X ", bs[0], bs[1]);
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str.Show(true);
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}
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#endif
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}
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// 引发数据到达事件
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uint Esp8266::OnReceive(Buffer& bs, void* param)
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{
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if(bs.Length() == 0) return 0;
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TS("Esp8266::OnReceive");
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//!!! 分析+IPD数据和命令返回，特别要注意粘包
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int s = 0;
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int p = 0;
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auto str = bs.AsString();
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while(p >= 0 && p < bs.Length())
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{
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s = p;
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p = str.IndexOf("+IPD,", s);
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// +IPD之前之后的数据，留给命令分析
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int size = p>=0 ? p-s : bs.Length()-s;
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if(size > 0)
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{
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if(_Expect)
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{
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uint rs = ParseReply(bs.Sub(s, size));
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#if NET_DEBUG
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// 如果没有吃完，剩下部分报未识别
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//if(rs < size) ParseFail("ParseReply", bs.Sub(s + rs, size - rs));
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// 不要报未识别了，反正内部会全部吃掉
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#endif
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}
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else
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{
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#if NET_DEBUG
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ParseFail("NoExpect", bs.Sub(s, size));
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#endif
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}
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}
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// +IPD开头的数据，作为收到数据
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if(p >= 0)
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{
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if(p + 5 >= bs.Length())
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{
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#if NET_DEBUG
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ParseFail("+IPD<=5", bs.Sub(p, -1));
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#endif
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break;
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}
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else
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{
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uint rs = ParseReceive(bs.Sub(p, -1));
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if(rs <= 0)
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{
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#if NET_DEBUG
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ParseFail("ParseReceive", bs.Sub(p + rs, -1));
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#endif
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break;
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}
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// 游标移到下一组数据
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p += rs;
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}
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}
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}
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return 0;
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}
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/*
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+IPD – 接收网络数据
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1) 单连接时:
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(+CIPMUX=0)
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+IPD,<len>[,<remote IP>,<remote
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port>]:<data>
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2) 多连接时：
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(+CIPMUX=1)
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+IPD,<link ID>,<len>[,<remote IP>,<remote port>]:<data>
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*/
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// 分析+IPD接收数据。返回被用掉的字节数
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uint Esp8266::ParseReceive(const Buffer& bs)
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{
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TS("Esp8266::ParseReceive");
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auto str = bs.AsString();
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StringSplit sp(str, ",");
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// 跳过第一段+IPD
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auto rs = sp.Next();
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if(!(rs = sp.Next())) return 0;
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int idx = rs.ToInt();
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if(idx < 0 || idx > 4) return 0;
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if(!(rs = sp.Next())) return 0;
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int len = rs.ToInt();
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IPEndPoint ep;
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if(!(rs = sp.Next())) return 0;
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ep.Address = IPAddress::Parse(rs);
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// 提前改变下一个分隔符
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sp.Sep = ":";
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if(!(rs = sp.Next())) return 0;
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ep.Port = rs.ToInt();
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// 后面是数据
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sp.Next();
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int s = sp.Position;
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if(s <= 0) return 0;
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// 分发给各个Socket
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auto es = (EspSocket**)_sockets;
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auto sk = es[idx];
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if(sk)
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{
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// 校验数据长度
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int len2 = len;
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int remain = bs.Length() - s;
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if(remain < len2)
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{
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len2 = remain;
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net_printf("剩余数据长度 %d 小于标称长度 %d \r\n", remain, len);
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}
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sk->OnProcess(bs.Sub(s, len2), ep);
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}
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return sp.Position + len;
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}
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// 分析关键字。返回被用掉的字节数
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uint Esp8266::ParseReply(const Buffer& bs)
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{
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if(!_Expect) return 0;
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// 拦截给同步方法
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auto we = (WaitExpect*)_Expect;
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bool rs = we->Parse(bs);
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// 如果内部已经适配，则清空
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if(!we->Result) _Expect = nullptr;
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return rs;
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}
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/******************************** 基础AT指令 ********************************/
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// 基础AT指令
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bool Esp8266::Test()
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{
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for(int i=0; i<10; i++)
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{
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if(SendCmd("AT", 500)) return true;
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Reset(false);
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}
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return false;
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}
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bool Esp8266::Reset(bool soft)
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{
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if(soft)
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return SendCmd("AT+RST");
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else
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{
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_rst.Up(100);
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return true;
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}
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}
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/*
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AT 版本信息
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基于的SDK版本信息
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编译生成时间
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*/
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String Esp8266::GetVersion()
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{
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return Send("AT+GMR\r\n", "OK");
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}
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bool Esp8266::Sleep(uint ms)
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{
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String cmd = "AT+GSLP=";
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cmd += ms;
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return SendCmd(cmd);
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}
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bool Esp8266::Echo(bool open)
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{
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String cmd = "ATE";
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cmd = cmd + (open ? '1' : '0');
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return SendCmd(cmd);
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}
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// 恢复出厂设置，将擦写所有保存到Flash的参数，恢复为默认参数。会导致模块重启
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bool Esp8266::Restore()
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{
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return SendCmd("AT+RESTORE");
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}
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/******************************** Esp8266 ********************************/
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/*
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发送：
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"AT+CWMODE=1
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"
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返回：
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"AT+CWMODE=1
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OK
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"
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*/
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bool Esp8266::SetMode(SocketMode mode)
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{
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String cmd = "AT+CWMODE=";
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cmd += (byte)mode;
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||
|
||
if (!SendCmd(cmd)) return false;
|
||
|
||
Mode = mode;
|
||
|
||
return true;
|
||
}
|
||
|
||
/*
|
||
发送：
|
||
"AT+CWMODE?
|
||
"
|
||
返回：
|
||
"AT+CWMODE? +CWMODE:1
|
||
|
||
OK
|
||
"
|
||
*/
|
||
SocketMode Esp8266::GetMode()
|
||
{
|
||
TS("Esp8266::GetMode");
|
||
|
||
auto mod = SocketMode::Station;
|
||
|
||
auto rs = Send("AT+CWMODE?\r\n", "OK");
|
||
if (!rs) return mod;
|
||
|
||
int p = rs.IndexOf(':');
|
||
if(p < 0) return mod;
|
||
|
||
return (SocketMode)rs.Substring(p+1, 1).ToInt();
|
||
}
|
||
|
||
// +CWJAP:<ssid>,<bssid>,<channel>,<rssi>
|
||
// <bssid>目标AP的MAC地址
|
||
String Esp8266::GetJoinAP()
|
||
{
|
||
return Send("AT+CWJAP?\r\n", "OK");
|
||
}
|
||
|
||
/*
|
||
发送：
|
||
"AT+CWJAP="yws007','yws52718"
|
||
"
|
||
返回： ( 一般3秒钟能搞定 密码后面位置会停顿， WIFI GOT IP 前面也会停顿 )
|
||
"AT+CWJAP="yws007','yws52718"WIFI CONNECTED
|
||
WIFI GOT IP
|
||
|
||
OK
|
||
"
|
||
也可能 (已连接其他WIFI) 70bytes
|
||
"AT+CWJAP="yws007','yws52718" WIFI DISCONNECT
|
||
WIFI CONNECTED
|
||
WIFI GOT IP
|
||
|
||
OK
|
||
"
|
||
密码错误返回
|
||
"AT+CWJAP="yws007','7" +CWJAP:1
|
||
|
||
FAIL
|
||
"
|
||
*/
|
||
bool Esp8266::JoinAP(const String& ssid, const String& pass)
|
||
{
|
||
#if NET_DEBUG
|
||
TimeCost tc;
|
||
#endif
|
||
|
||
String cmd = "AT+CWJAP=";
|
||
cmd = cmd + "\"" + ssid + "\",\"" + pass + "\"";
|
||
|
||
bool rs = SendCmd(cmd, 15000);
|
||
|
||
#if NET_DEBUG
|
||
net_printf("Esp8266::JoinAP ");
|
||
if(rs)
|
||
net_printf("成功 ");
|
||
else
|
||
net_printf("失败 ");
|
||
tc.Show();
|
||
#endif
|
||
|
||
return rs;
|
||
}
|
||
|
||
/*
|
||
返回：
|
||
"AT+CWQAP WIFI DISCONNECT
|
||
|
||
OK
|
||
"
|
||
*/
|
||
bool Esp8266::UnJoinAP()
|
||
{
|
||
return SendCmd("AT+CWQAP", 2000);
|
||
}
|
||
|
||
/*
|
||
开机自动连接WIFI
|
||
*/
|
||
bool Esp8266::SetAutoConn(bool enable)
|
||
{
|
||
String cmd = "AT+CWAUTOCONN=";
|
||
|
||
return SendCmd(cmd + (enable ? '1' : '0'));
|
||
}
|
||
|
||
// +CWLAP:<enc>,<ssid>,<rssi>,<mac>,<ch>,<freq offset>,<freq calibration>
|
||
// freq offset, AP频偏，单位kHz，转为成ppm需要除以2.4
|
||
// freq calibration，频偏校准值
|
||
String Esp8266::LoadAPs()
|
||
{
|
||
return Send("AT+CWLAP\r\n", "OK");
|
||
}
|
||
|
||
// +CWSAP:<ssid>,<pwd>,<chl>,<ecn>,<max conn>,<ssid hidden>
|
||
String Esp8266::GetAP()
|
||
{
|
||
return Send("AT+CWSAP\r\n", "OK");
|
||
}
|
||
|
||
/*
|
||
注意: 指令只有在 softAP 模式开启后有效
|
||
参数说明：
|
||
<ssid> 字符串参数，接入点名称
|
||
<pwd> 字符串参数，密码强度范围：8 ~ 64 字节 ASCII
|
||
<chl> 通道号
|
||
<ecn> 加密方式，不支持 WEP
|
||
0 OPEN
|
||
2 WPA_PSK
|
||
3 WPA2_PSK
|
||
4 WPA_WPA2_PSK
|
||
<max conn> 允许连接 ESP8266 soft-AP 的最多 station 数目
|
||
取值范围 [1, 4]
|
||
<ssid hidden> 默认为 0，开启广播 ESP8266 soft-AP SSID
|
||
0 广播 SSID
|
||
1 不广播 SSID
|
||
*/
|
||
bool Esp8266::SetAP(const String& ssid, const String& pass, byte channel, byte ecn, byte maxConnect, bool hidden)
|
||
{
|
||
String cmd = "AT+CWSAP=";
|
||
cmd = cmd + "\"" + ssid + "\",\"" + pass + "\"," + channel + ',' + ecn /*+ ',' + maxConnect + ',' + (hidden ? '1' : '0')*/;
|
||
|
||
return SendCmd(cmd, 1600);
|
||
}
|
||
|
||
// <ip addr>,<mac>
|
||
// 查询连接到AP的Stations信息。无法查询DHCP接入
|
||
String Esp8266::LoadStations()
|
||
{
|
||
return Send("AT+CWLIF\r\n", "OK");
|
||
}
|
||
|
||
bool Esp8266::GetDHCP(bool* sta, bool* ap)
|
||
{
|
||
auto rs = Send("AT+CWDHCP?\r\n", "OK");
|
||
if(!rs) return false;
|
||
|
||
byte n = rs.ToInt();
|
||
*sta = n & 0x01;
|
||
*ap = n & 0x02;
|
||
|
||
return true;
|
||
}
|
||
|
||
bool Esp8266::SetDHCP(SocketMode mode, bool enable)
|
||
{
|
||
byte m = 0;
|
||
switch(mode)
|
||
{
|
||
case SocketMode::Station:
|
||
m = 1;
|
||
break;
|
||
case SocketMode::AP:
|
||
m = 0;
|
||
break;
|
||
case SocketMode::STA_AP:
|
||
m = 2;
|
||
break;
|
||
default:
|
||
return false;
|
||
}
|
||
|
||
String cmd = "AT+CWDHCP=";
|
||
return SendCmd(cmd + m + ',' + enable);
|
||
}
|
||
|
||
MacAddress Esp8266::GetMAC(bool sta)
|
||
{
|
||
auto rs = Send(sta ? "AT+CIPSTAMAC?\r\n" : "AT+CIPAPMAC?\r\n", "OK");
|
||
int p = rs.IndexOf(':');
|
||
if(p < 0) return MacAddress::Empty();
|
||
|
||
return MacAddress::Parse(rs.Substring(p + 1, -1));
|
||
}
|
||
|
||
// 设置MAC会导致WiFi连接断开
|
||
bool Esp8266::SetMAC(bool sta, const MacAddress& mac)
|
||
{
|
||
String cmd = sta ? "AT+CIPSTAMAC" : "AT+CIPAPMAC";
|
||
cmd = cmd + "=\"" + mac.ToString().Replace('-', ':') + '\"';
|
||
|
||
return SendCmd(cmd);
|
||
}
|
||
|
||
IPAddress Esp8266::GetIP(bool sta)
|
||
{
|
||
auto rs = Send(sta ? "AT+CIPSTA?\r\n" : "AT+CIPAP?\r\n", "OK");
|
||
int p = rs.IndexOf("ip:\"");
|
||
if(p < 0) return IPAddress::Any();
|
||
|
||
p += 4;
|
||
int e = rs.IndexOf("\"", p);
|
||
if(e < 0) return IPAddress::Any();
|
||
|
||
return IPAddress::Parse(rs.Substring(p, e - p));
|
||
}
|
||
|
||
/******************************** TCP/IP ********************************/
|
||
|
||
/*
|
||
STATUS:<stat>
|
||
+CIPSTATUS:<link ID>,<type>,<remote IP>,<remote port> ,<local port>,<tetype>
|
||
|
||
参数说明：
|
||
<stat>
|
||
2：获得 IP
|
||
3：已连接
|
||
4：断开连接
|
||
5：未连接到 WiFi
|
||
<link ID> ⺴˷ 络连接 ID (0~4)，⽤ݒ于多连接的情况
|
||
<type> 字符串参数， “TCP” 或者 “UDP”
|
||
<remote IP> 字符串，远端 IP 地址
|
||
<remote port> 远端端⼝Ծ值
|
||
<local port> ESP8266 本地端⼝Ծ值
|
||
<tetype>
|
||
0: ESP8266 作为 client
|
||
1: ESP8266 作为 server
|
||
*/
|
||
String Esp8266::GetStatus()
|
||
{
|
||
return Send("AT+CIPSTATUS?\r\n", "OK");
|
||
}
|
||
|
||
bool Esp8266::GetMux()
|
||
{
|
||
auto rs = Send("AT+CIPMUX?\r\n", "OK");
|
||
int p = rs.IndexOf(':');
|
||
if(p < 0) return false;
|
||
|
||
return rs.Substring(p + 1, 1) != "0";
|
||
}
|
||
|
||
bool Esp8266::SetMux(bool enable)
|
||
{
|
||
String cmd = "AT+CIPMUX=";
|
||
return SendCmd(cmd + (enable ? '1' : '0'));
|
||
}
|
||
|
||
bool Esp8266::Update()
|
||
{
|
||
return SendCmd("AT+CIPUPDATE");
|
||
}
|
||
|
||
bool Esp8266::Ping(const IPAddress& ip)
|
||
{
|
||
String cmd = "AT+PING=";
|
||
|
||
return SendCmd(cmd + ip);
|
||
}
|
||
|
||
bool Esp8266::SetIPD(bool enable)
|
||
{
|
||
String cmd = "AT+CIPDINFO=";
|
||
return SendCmd(cmd + (enable ? '1' : '0'));
|
||
}
|