mirror of
https://github.com/manuelbl/ttn-esp32.git
synced 2025-07-16 23:52:52 +02:00
92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
/*******************************************************************************
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*
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* ttn-esp32 - The Things Network device library for ESP-IDF / SX127x
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*
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* Copyright (c) 2018-2019 Manuel Bleichenbacher
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*
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* Licensed under MIT License
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* https://opensource.org/licenses/MIT
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*
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* Hardware abstraction layer to run LMIC on a ESP32 using ESP-IDF.
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*******************************************************************************/
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#ifndef _hal_esp32_h_
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#define _hal_esp32_h_
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#include <stdint.h>
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#include <freertos/FreeRTOS.h>
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#include <freertos/queue.h>
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#include <freertos/task.h>
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#include <freertos/semphr.h>
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#include <driver/gpio.h>
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#include <driver/spi_master.h>
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#include <esp_timer.h>
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enum WaitKind {
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CHECK_IO,
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WAIT_FOR_ANY_EVENT,
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WAIT_FOR_TIMER
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};
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class HAL_ESP32
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{
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public:
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HAL_ESP32();
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void configurePins(spi_host_device_t spi_host, uint8_t nss, uint8_t rxtx, uint8_t rst, uint8_t dio0, uint8_t dio1);
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void init();
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void startLMICTask();
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void wakeUp();
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void initCriticalSection();
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void enterCriticalSection();
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void leaveCriticalSection();
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void spiWrite(uint8_t cmd, const uint8_t *buf, size_t len);
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void spiRead(uint8_t cmd, uint8_t *buf, size_t len);
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uint8_t checkTimer(uint32_t osTime);
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void sleep();
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void waitUntil(uint32_t osTime);
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spi_host_device_t spiHost;
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gpio_num_t pinNSS;
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gpio_num_t pinRxTx;
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gpio_num_t pinRst;
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gpio_num_t pinDIO0;
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gpio_num_t pinDIO1;
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int8_t rssiCal;
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private:
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static void lmicBackgroundTask(void* pvParameter);
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static void dioIrqHandler(void* arg);
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static void timerCallback(void *arg);
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static int64_t osTimeToEspTime(int64_t espNow, uint32_t osTime);
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void ioInit();
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void spiInit();
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void timerInit();
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void setNextAlarm(int64_t time);
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void armTimer(int64_t espNow);
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void disarmTimer();
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bool wait(WaitKind waitKind);
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static TaskHandle_t lmicTask;
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static uint32_t dioInterruptTime;
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static uint8_t dioNum;
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spi_device_handle_t spiHandle;
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spi_transaction_t spiTransaction;
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SemaphoreHandle_t mutex;
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esp_timer_handle_t timer;
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int64_t nextAlarm;
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};
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extern HAL_ESP32 ttn_hal;
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#endif // _hal_esp32_h_
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