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129 lines
3.1 KiB
129 lines
3.1 KiB
// Copyright 2015 by Thorsten von Eicken, see LICENSE.txt
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#include <esp8266.h>
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#include "config.h"
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#include "serled.h"
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#include "cgiwifi.h"
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#ifdef MQTT
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#include "mqtt.h"
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#include "mqtt_client.h"
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extern MQTT_Client mqttClient;
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//===== MQTT Status update
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// Every minute...
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#define MQTT_STATUS_INTERVAL (60*1000)
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static ETSTimer mqttStatusTimer;
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int ICACHE_FLASH_ATTR
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mqttStatusMsg(char *buf) {
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sint8 rssi = wifi_station_get_rssi();
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if (rssi > 0) rssi = 0; // not connected or other error
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//os_printf("timer rssi=%d\n", rssi);
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// compose MQTT message
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return os_sprintf(buf,
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"{\"rssi\":%d, \"heap_free\":%ld}",
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rssi, (unsigned long)system_get_free_heap_size());
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}
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// Timer callback to send an RSSI update to a monitoring system
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static void ICACHE_FLASH_ATTR mqttStatusCb(void *v) {
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if (!flashConfig.mqtt_status_enable || os_strlen(flashConfig.mqtt_status_topic) == 0 ||
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mqttClient.connState != MQTT_CONNECTED)
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return;
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char buf[128];
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mqttStatusMsg(buf);
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MQTT_Publish(&mqttClient, flashConfig.mqtt_status_topic, buf, os_strlen(buf), 1, 0);
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}
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#endif // MQTT
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//===== "CONN" LED status indication
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static ETSTimer ledTimer;
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// Set the LED on or off, respecting the defined polarity
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static void ICACHE_FLASH_ATTR setLed(int on) {
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int8_t pin = flashConfig.conn_led_pin;
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if (pin < 0) return; // disabled
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// LED is active-low
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if (on) {
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gpio_output_set(0, (1<<pin), (1<<pin), 0);
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} else {
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gpio_output_set((1<<pin), 0, (1<<pin), 0);
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}
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}
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static uint8_t ledState = 0;
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// Timer callback to update the LED
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static void ICACHE_FLASH_ATTR ledTimerCb(void *v) {
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int time = 1000;
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if (wifiState == wifiGotIP) {
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// connected, all is good, solid light with a short dark blip every 3 seconds
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ledState = 1-ledState;
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time = ledState ? 2900 : 100;
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} else if (wifiState == wifiIsConnected) {
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// waiting for DHCP, go on/off every second
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ledState = 1 - ledState;
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time = 1000;
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} else {
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// not connected
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switch (wifi_get_opmode()) {
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case 1: // STA
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ledState = 0;
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break;
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case 2: // AP
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ledState = 1-ledState;
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time = ledState ? 50 : 1950;
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break;
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case 3: // STA+AP
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ledState = 1-ledState;
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time = ledState ? 50 : 950;
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break;
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}
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}
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setLed(ledState);
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os_timer_arm(&ledTimer, time, 0);
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}
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// change the wifi state indication
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void ICACHE_FLASH_ATTR statusWifiUpdate(uint8_t state) {
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wifiState = state;
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// schedule an update (don't want to run into concurrency issues)
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os_timer_disarm(&ledTimer);
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os_timer_setfn(&ledTimer, ledTimerCb, NULL);
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os_timer_arm(&ledTimer, 500, 0);
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}
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//===== Init status stuff
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void ICACHE_FLASH_ATTR statusInit(void) {
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if (flashConfig.conn_led_pin >= 0) {
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makeGpio(flashConfig.conn_led_pin);
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setLed(1);
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}
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#ifdef STATUS_DBG
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os_printf("CONN led=%d\n", flashConfig.conn_led_pin);
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#endif
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os_timer_disarm(&ledTimer);
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os_timer_setfn(&ledTimer, ledTimerCb, NULL);
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os_timer_arm(&ledTimer, 2000, 0);
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#ifdef MQTT
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os_timer_disarm(&mqttStatusTimer);
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os_timer_setfn(&mqttStatusTimer, mqttStatusCb, NULL);
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os_timer_arm(&mqttStatusTimer, MQTT_STATUS_INTERVAL, 1); // recurring timer
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#endif // MQTT
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}
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