1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <Ticker.h>
#include "mqtt.h"
#include "config.h"
#include "logging.h"
#include "http_server.h"
#include "led.h"
#include "config.def.h"
#include "wifi.h"
#include "relay.h"
#include "stopwatch.h"
using namespace homekit;
static Led board_led(BOARD_LED_PIN);
static Led esp_led(ESP_LED_PIN);
enum class WorkingMode {
RECOVERY, // AP mode, http server with configuration
NORMAL, // MQTT client
};
static enum WorkingMode working_mode = WorkingMode::NORMAL;
enum class WiFiConnectionState {
WAITING = 0,
JUST_CONNECTED = 1,
CONNECTED = 2
};
static const uint16_t recovery_boot_detection_ms = 2000;
static const uint8_t recovery_boot_delay_ms = 100;
static volatile enum WiFiConnectionState wifi_state = WiFiConnectionState::WAITING;
static void* service = nullptr;
static WiFiEventHandler wifiConnectHandler, wifiDisconnectHandler;
static Ticker wifiTimer;
static StopWatch blinkStopWatch;
static DNSServer* dnsServer;
static void onWifiConnected(const WiFiEventStationModeGotIP& event);
static void onWifiDisconnected(const WiFiEventStationModeDisconnected& event);
static void wifiConnect() {
char* ssid, *psk, *hostname;
auto cfg = config::read();
wifi::getConfig(cfg, &ssid, &psk, &hostname);
PRINTF("Wi-Fi STA creds: ssid=%s, psk=%s, hostname=%s\n", ssid, psk, hostname);
wifi_state = WiFiConnectionState::WAITING;
WiFi.mode(WIFI_STA);
WiFi.setHostname(hostname);
WiFi.begin(ssid, psk);
PRINT("connecting to wifi..");
while (WiFi.status() != WL_CONNECTED) {
esp_led.blink(2, 50);
delay(1000);
PRINT('.');
}
PRINT(' ');
}
static void wifiHotspot() {
esp_led.on();
auto scanResults = wifi::scan();
WiFi.mode(WIFI_AP);
WiFi.softAP(wifi::WIFI_AP_SSID);
dnsServer = new DNSServer();
dnsServer->start(53, "*", WiFi.softAPIP());
service = new HttpServer(scanResults);
((HttpServer*)service)->start();
}
void setup() {
#ifdef DEBUG
Serial.begin(115200);
#endif
relay::init();
pinMode(FLASH_BUTTON_PIN, INPUT_PULLUP);
for (uint16_t i = 0; i < recovery_boot_detection_ms; i += recovery_boot_delay_ms) {
delay(recovery_boot_delay_ms);
if (digitalRead(FLASH_BUTTON_PIN) == LOW) {
working_mode = WorkingMode::RECOVERY;
break;
}
}
auto cfg = config::read();
if (config::isDirty(cfg)) {
PRINTLN("config is dirty, erasing...");
config::erase(cfg);
board_led.blink(10, 50);
}
switch (working_mode) {
case WorkingMode::RECOVERY:
wifiHotspot();
break;
case WorkingMode::NORMAL:
wifiConnectHandler = WiFi.onStationModeGotIP(onWifiConnected);
wifiDisconnectHandler = WiFi.onStationModeDisconnected(onWifiDisconnected);
wifiConnect();
break;
}
}
void loop() {
if (working_mode == WorkingMode::NORMAL) {
if (wifi_state == WiFiConnectionState::JUST_CONNECTED) {
board_led.blink(3, 300);
wifi_state = WiFiConnectionState::CONNECTED;
if (service == nullptr)
service = new mqtt::MQTT();
((mqtt::MQTT*)service)->connect();
blinkStopWatch.save();
}
auto mqtt = (mqtt::MQTT*)service;
if (static_cast<int>(wifi_state) >= 1
&& mqtt != nullptr) {
if (!mqtt->loop()) {
PRINTLN("mqtt::loop() returned false");
// FIXME do something here
}
if (mqtt->statStopWatch.elapsed(10000)) {
mqtt->sendStat();
}
// periodically blink board led
if (blinkStopWatch.elapsed(5000)) {
board_led.blink(1, 10);
blinkStopWatch.save();
}
}
delay(500);
} else {
if (dnsServer != nullptr)
dnsServer->processNextRequest();
}
}
static void onWifiConnected(const WiFiEventStationModeGotIP& event) {
PRINTF("connected (%s)\n", WiFi.localIP().toString().c_str());
wifi_state = WiFiConnectionState::JUST_CONNECTED;
}
static void onWifiDisconnected(const WiFiEventStationModeDisconnected& event) {
PRINTLN("disconnected from wi-fi");
wifi_state = WiFiConnectionState::WAITING;
if (service != nullptr)
((mqtt::MQTT*)service)->disconnect();
wifiTimer.once(2, wifiConnect);
}
|
