472 lines
14 KiB
C++
472 lines
14 KiB
C++
/*
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//////////////////////// ESP32-Paxcounter \\\\\\\\\\\\\\\\\\\\\\\\\\
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Copyright 2018 Oliver Brandmueller <ob@sysadm.in>
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Copyright 2018 Klaus Wilting <verkehrsrot@arcor.de>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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NOTE:
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Parts of the source files in this repository are made available under different
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licenses. Refer to LICENSE.txt file in repository for more details.
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//////////////////////// ESP32-Paxcounter \\\\\\\\\\\\\\\\\\\\\\\\\\
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// Tasks and timers:
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Task Core Prio Purpose
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-------------------------------------------------------------------------------
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ledloop 0 3 blinks LEDs
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spiloop 0 2 reads/writes data on spi interface
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IDLE 0 0 ESP32 arduino scheduler -> runs wifi sniffer
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clockloop 1 4 generates realtime telegrams for external clock
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timesync_req 1 3 processes realtime time sync requests
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lmictask 1 2 MCCI LMiC LORAWAN stack
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irqhandler 1 1 display, timesync, gps, etc. triggered by timers
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gpsloop 1 1 reads data from GPS via serial or i2c
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lorasendtask 1 1 feed data from lora sendqueue to lmcic
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IDLE 1 0 ESP32 arduino scheduler -> runs wifi channel rotator
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Low priority numbers denote low priority tasks.
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NOTE: Changing any timings will have impact on time accuracy of whole code.
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So don't do it if you do not own a digital oscilloscope.
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// ESP32 hardware timers
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-------------------------------------------------------------------------------
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0 displayIRQ -> display refresh -> 40ms (DISPLAYREFRESH_MS)
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1 ppsIRQ -> pps clock irq -> 1sec
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3 MatrixDisplayIRQ -> matrix mux cycle -> 0,5ms (MATRIX_DISPLAY_SCAN_US)
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// Interrupt routines
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-------------------------------------------------------------------------------
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fired by hardware
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DisplayIRQ -> esp32 timer 0 -> irqHandlerTask (Core 1)
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CLOCKIRQ -> esp32 timer 1 -> ClockTask (Core 1)
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ButtonIRQ -> external gpio -> irqHandlerTask (Core 1)
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fired by software (Ticker.h)
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TIMESYNC_IRQ -> timeSync() -> irqHandlerTask (Core 1)
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CYLCIC_IRQ -> housekeeping() -> irqHandlerTask (Core 1)
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SENDCYCLE_IRQ -> sendcycle() -> irqHandlerTask (Core 1)
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BME_IRQ -> bmecycle() -> irqHandlerTask (Core 1)
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// External RTC timer (if present)
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-------------------------------------------------------------------------------
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triggers pps 1 sec impulse
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*/
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// Basic Config
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#include "main.h"
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configData_t cfg; // struct holds current device configuration
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char display_line6[16], display_line7[16]; // display buffers
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uint8_t volatile channel = 0; // channel rotation counter
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uint16_t volatile macs_total = 0, macs_wifi = 0, macs_ble = 0,
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batt_voltage = 0; // globals for display
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hw_timer_t *ppsIRQ = NULL, *displayIRQ = NULL, *matrixDisplayIRQ = NULL;
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TaskHandle_t irqHandlerTask = NULL, ClockTask = NULL;
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SemaphoreHandle_t I2Caccess;
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bool volatile TimePulseTick = false;
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time_t userUTCTime = 0;
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timesource_t timeSource = _unsynced;
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// container holding unique MAC address hashes with Memory Alloctor using PSRAM,
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// if present
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std::set<uint16_t, std::less<uint16_t>, Mallocator<uint16_t>> macs;
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// initialize payload encoder
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PayloadConvert payload(PAYLOAD_BUFFER_SIZE);
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// set Time Zone for user setting from paxcounter.conf
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TimeChangeRule myDST = DAYLIGHT_TIME;
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TimeChangeRule mySTD = STANDARD_TIME;
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Timezone myTZ(myDST, mySTD);
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// local Tag for logging
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static const char TAG[] = __FILE__;
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void setup() {
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char features[100] = "";
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// create some semaphores for syncing / mutexing tasks
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I2Caccess = xSemaphoreCreateMutex(); // for access management of i2c bus
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assert(I2Caccess != NULL);
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I2C_MUTEX_UNLOCK();
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// disable brownout detection
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#ifdef DISABLE_BROWNOUT
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// register with brownout is at address DR_REG_RTCCNTL_BASE + 0xd4
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(*((uint32_t volatile *)ETS_UNCACHED_ADDR((DR_REG_RTCCNTL_BASE + 0xd4)))) = 0;
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#endif
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// setup debug output or silence device
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#if (VERBOSE)
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Serial.begin(115200);
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esp_log_level_set("*", ESP_LOG_VERBOSE);
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#else
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// mute logs completely by redirecting them to silence function
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esp_log_level_set("*", ESP_LOG_NONE);
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#endif
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ESP_LOGI(TAG, "Starting %s v%s", PRODUCTNAME, PROGVERSION);
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// print chip information on startup if in verbose mode
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#if (VERBOSE)
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esp_chip_info_t chip_info;
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esp_chip_info(&chip_info);
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ESP_LOGI(TAG,
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"This is ESP32 chip with %d CPU cores, WiFi%s%s, silicon revision "
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"%d, %dMB %s Flash",
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chip_info.cores, (chip_info.features & CHIP_FEATURE_BT) ? "/BT" : "",
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(chip_info.features & CHIP_FEATURE_BLE) ? "/BLE" : "",
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chip_info.revision, spi_flash_get_chip_size() / (1024 * 1024),
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(chip_info.features & CHIP_FEATURE_EMB_FLASH) ? "embedded"
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: "external");
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ESP_LOGI(TAG, "Internal Total heap %d, internal Free Heap %d",
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ESP.getHeapSize(), ESP.getFreeHeap());
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#ifdef BOARD_HAS_PSRAM
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ESP_LOGI(TAG, "SPIRam Total heap %d, SPIRam Free Heap %d", ESP.getPsramSize(),
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ESP.getFreePsram());
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#endif
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ESP_LOGI(TAG, "ChipRevision %d, Cpu Freq %d, SDK Version %s",
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ESP.getChipRevision(), ESP.getCpuFreqMHz(), ESP.getSdkVersion());
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ESP_LOGI(TAG, "Flash Size %d, Flash Speed %d", ESP.getFlashChipSize(),
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ESP.getFlashChipSpeed());
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ESP_LOGI(TAG, "Wifi/BT software coexist version %s", esp_coex_version_get());
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#if (HAS_LORA)
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ESP_LOGI(TAG, "IBM LMIC version %d.%d.%d", LMIC_VERSION_MAJOR,
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LMIC_VERSION_MINOR, LMIC_VERSION_BUILD);
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ESP_LOGI(TAG, "Arduino LMIC version %d.%d.%d.%d",
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ARDUINO_LMIC_VERSION_GET_MAJOR(ARDUINO_LMIC_VERSION),
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ARDUINO_LMIC_VERSION_GET_MINOR(ARDUINO_LMIC_VERSION),
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ARDUINO_LMIC_VERSION_GET_PATCH(ARDUINO_LMIC_VERSION),
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ARDUINO_LMIC_VERSION_GET_LOCAL(ARDUINO_LMIC_VERSION));
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showLoraKeys();
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#endif // HAS_LORA
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#if (HAS_GPS)
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ESP_LOGI(TAG, "TinyGPS+ version %s", TinyGPSPlus::libraryVersion());
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#endif
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// open i2c bus
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#ifdef HAS_DISPLAY
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Wire.begin(MY_OLED_SDA, MY_OLED_SCL, 100000);
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#else
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Wire.begin(SDA, SCL, 100000);
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#endif
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// setup power on boards with power management logic
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#ifdef EXT_POWER_SW
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pinMode(EXT_POWER_SW, OUTPUT);
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digitalWrite(EXT_POWER_SW, EXT_POWER_ON);
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strcat_P(features, " VEXT");
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#endif
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#ifdef HAS_PMU
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AXP192_init();
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strcat_P(features, " PMU");
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#endif
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// scan i2c bus for devices
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i2c_scan();
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#endif // verbose
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// read (and initialize on first run) runtime settings from NVRAM
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loadConfig(); // includes initialize if necessary
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// initialize display
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#ifdef HAS_DISPLAY
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strcat_P(features, " OLED");
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DisplayIsOn = cfg.screenon;
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init_display(PRODUCTNAME, PROGVERSION); // note: blocking call
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#endif
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#ifdef BOARD_HAS_PSRAM
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assert(psramFound());
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ESP_LOGI(TAG, "PSRAM found and initialized");
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strcat_P(features, " PSRAM");
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#endif
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#ifdef BAT_MEASURE_EN
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pinMode(BAT_MEASURE_EN, OUTPUT);
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#endif
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// initialize leds
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#if (HAS_LED != NOT_A_PIN)
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pinMode(HAS_LED, OUTPUT);
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strcat_P(features, " LED");
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#ifdef LED_POWER_SW
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pinMode(LED_POWER_SW, OUTPUT);
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digitalWrite(LED_POWER_SW, LED_POWER_ON);
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#endif
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#ifdef HAS_TWO_LED
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pinMode(HAS_TWO_LED, OUTPUT);
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strcat_P(features, " LED1");
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#endif
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// use LED for power display if we have additional RGB LED, else for status
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#ifdef HAS_RGB_LED
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switch_LED(LED_ON);
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strcat_P(features, " RGB");
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rgb_set_color(COLOR_PINK);
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#endif
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#endif // HAS_LED
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#if (HAS_LED != NOT_A_PIN) || defined(HAS_RGB_LED)
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// start led loop
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ESP_LOGI(TAG, "Starting LED Controller...");
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xTaskCreatePinnedToCore(ledLoop, // task function
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"ledloop", // name of task
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1024, // stack size of task
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(void *)1, // parameter of the task
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3, // priority of the task
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&ledLoopTask, // task handle
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0); // CPU core
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#endif
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// initialize wifi antenna
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#ifdef HAS_ANTENNA_SWITCH
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strcat_P(features, " ANT");
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antenna_init();
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antenna_select(cfg.wifiant);
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#endif
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// initialize battery status
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#if (defined BAT_MEASURE_ADC || defined HAS_PMU)
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strcat_P(features, " BATT");
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calibrate_voltage();
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batt_voltage = read_voltage();
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#endif
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#if (USE_OTA)
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strcat_P(features, " OTA");
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// reboot to firmware update mode if ota trigger switch is set
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if (cfg.runmode == 1) {
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cfg.runmode = 0;
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saveConfig();
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start_ota_update();
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}
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#endif
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// start BLE scan callback if BLE function is enabled in NVRAM configuration
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// or switch off bluetooth, if not compiled
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#if (BLECOUNTER)
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strcat_P(features, " BLE");
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if (cfg.blescan) {
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ESP_LOGI(TAG, "Starting Bluetooth...");
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start_BLEscan();
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} else
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btStop();
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#else
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// remove bluetooth stack to gain more free memory
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btStop();
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ESP_ERROR_CHECK(esp_bt_mem_release(ESP_BT_MODE_BTDM));
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ESP_ERROR_CHECK(esp_coex_preference_set(
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ESP_COEX_PREFER_WIFI)); // configure Wifi/BT coexist lib
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#endif
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// initialize gps
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#if (HAS_GPS)
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strcat_P(features, " GPS");
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if (gps_init()) {
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ESP_LOGI(TAG, "Starting GPS Feed...");
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xTaskCreatePinnedToCore(gps_loop, // task function
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"gpsloop", // name of task
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2048, // stack size of task
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(void *)1, // parameter of the task
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1, // priority of the task
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&GpsTask, // task handle
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1); // CPU core
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}
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#endif
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// initialize sensors
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#if (HAS_SENSORS)
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strcat_P(features, " SENS");
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sensor_init();
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#endif
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// initialize LoRa
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#if (HAS_LORA)
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strcat_P(features, " LORA");
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assert(lora_stack_init() == ESP_OK);
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#endif
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// initialize SPI
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#ifdef HAS_SPI
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strcat_P(features, " SPI");
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assert(spi_init() == ESP_OK);
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#endif
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#if (VENDORFILTER)
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strcat_P(features, " FILTER");
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#endif
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// initialize matrix display
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#ifdef HAS_MATRIX_DISPLAY
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strcat_P(features, " LED_MATRIX");
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MatrixDisplayIsOn = cfg.screenon;
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init_matrix_display(); // note: blocking call
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#endif
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// show payload encoder
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#if PAYLOAD_ENCODER == 1
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strcat_P(features, " PLAIN");
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#elif PAYLOAD_ENCODER == 2
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strcat_P(features, " PACKED");
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#elif PAYLOAD_ENCODER == 3
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strcat_P(features, " LPPDYN");
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#elif PAYLOAD_ENCODER == 4
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strcat_P(features, " LPPPKD");
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#endif
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// initialize RTC
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#ifdef HAS_RTC
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strcat_P(features, " RTC");
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assert(rtc_init());
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#endif
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#if defined HAS_DCF77
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strcat_P(features, " DCF77");
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#endif
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#if defined HAS_IF482
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strcat_P(features, " IF482");
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#endif
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#if (WIFICOUNTER)
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strcat_P(features, " WIFI");
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// start wifi in monitor mode and start channel rotation timer
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ESP_LOGI(TAG, "Starting Wifi...");
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wifi_sniffer_init();
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// initialize salt value using esp_random() called by random() in
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// arduino-esp32 core. Note: do this *after* wifi has started, since
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// function gets it's seed from RF noise
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get_salt(); // get new 16bit for salting hashes
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#else
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// switch off wifi
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WiFi.mode(WIFI_OFF);
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esp_wifi_stop();
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esp_wifi_deinit();
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#endif
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// start state machine
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ESP_LOGI(TAG, "Starting Interrupt Handler...");
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xTaskCreatePinnedToCore(irqHandler, // task function
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"irqhandler", // name of task
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4096, // stack size of task
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(void *)1, // parameter of the task
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2, // priority of the task
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&irqHandlerTask, // task handle
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1); // CPU core
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// initialize BME sensor (BME280/BME680)
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#if (HAS_BME)
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#ifdef HAS_BME680
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strcat_P(features, " BME680");
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#elif defined HAS_BME280
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strcat_P(features, " BME280");
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#endif
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if (bme_init())
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ESP_LOGI(TAG, "Starting BME sensor...");
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#endif
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// starting timers and interrupts
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assert(irqHandlerTask != NULL); // has interrupt handler task started?
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ESP_LOGI(TAG, "Starting Timers...");
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// display interrupt
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#ifdef HAS_DISPLAY
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// https://techtutorialsx.com/2017/10/07/esp32-arduino-timer-interrupts/
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// prescaler 80 -> divides 80 MHz CPU freq to 1 MHz, timer 0, count up
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displayIRQ = timerBegin(0, 80, true);
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timerAttachInterrupt(displayIRQ, &DisplayIRQ, true);
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timerAlarmWrite(displayIRQ, DISPLAYREFRESH_MS * 1000, true);
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timerAlarmEnable(displayIRQ);
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#endif
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// LED Matrix display interrupt
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#ifdef HAS_MATRIX_DISPLAY
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// https://techtutorialsx.com/2017/10/07/esp32-arduino-timer-interrupts/
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// prescaler 80 -> divides 80 MHz CPU freq to 1 MHz, timer 3, count up
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matrixDisplayIRQ = timerBegin(3, 80, true);
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timerAttachInterrupt(matrixDisplayIRQ, &MatrixDisplayIRQ, true);
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timerAlarmWrite(matrixDisplayIRQ, MATRIX_DISPLAY_SCAN_US, true);
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timerAlarmEnable(matrixDisplayIRQ);
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#endif
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// initialize button
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#ifdef HAS_BUTTON
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strcat_P(features, " BTN_");
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#ifdef BUTTON_PULLUP
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strcat_P(features, "PU");
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#else
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strcat_P(features, "PD");
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#endif // BUTTON_PULLUP
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button_init(HAS_BUTTON);
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#endif // HAS_BUTTON
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// cyclic function interrupts
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sendcycler.attach(SENDCYCLE * 2, sendcycle);
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housekeeper.attach(HOMECYCLE, housekeeping);
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#if (TIME_SYNC_INTERVAL)
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#if (!(TIME_SYNC_LORAWAN) && !(TIME_SYNC_LORASERVER) && !defined HAS_GPS && \
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!defined HAS_RTC)
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#warning you did not specify a time source, time will not be synched
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#endif
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// initialize gps time
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#if (HAS_GPS)
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fetch_gpsTime();
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#endif
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#if (defined HAS_IF482 || defined HAS_DCF77)
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ESP_LOGI(TAG, "Starting Clock Controller...");
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clock_init();
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#endif
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#if (TIME_SYNC_LORASERVER)
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timesync_init(); // create loraserver time sync task
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#endif
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ESP_LOGI(TAG, "Starting Timekeeper...");
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assert(timepulse_init()); // setup pps timepulse
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timepulse_start(); // starts pps and cyclic time sync
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#endif // TIME_SYNC_INTERVAL
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// show compiled features
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ESP_LOGI(TAG, "Features:%s", features);
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vTaskDelete(NULL);
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} // setup()
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void loop() { vTaskDelete(NULL); }
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