wifi: squash commit of wifi implementation
Squashed commit of the following:
commit 7684f6a159896d44ec7dc865aeb382ed674f5764
Author: A.M. Rowsell <amr@frzn.dev>
Date: Wed Jun 24 02:53:46 2026 -0400
wireless: these files also need to be present to build, oops.
commit 3b5760f4ffa6e0162fad54552a7274d3209334d8
Author: A.M. Rowsell <amr@frzn.dev>
Date: Tue Jun 23 10:57:55 2026 -0400
wifi: working setup with MQTT, plus averaging of readings
This commit is contained in:
parent
b1224528aa
commit
c937638cad
8 changed files with 547 additions and 26 deletions
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@ -17,16 +17,20 @@ include(pico_sdk_import.cmake)
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if (PICO_SDK_VERSION_STRING VERSION_LESS "1.4.0")
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message(FATAL_ERROR "Raspberry Pi Pico SDK version 1.4.0 (or later) required. Your version is ${PICO_SDK_VERSION_STRING}")
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endif()
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project(ensaht C CXX ASM)
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# Initialise the Raspberry Pi Pico SDK
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pico_sdk_init()
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project(ensaht C CXX ASM)
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# Add executable. Default name is the project name, version 0.1
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add_executable(ensaht ensaht.c )
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add_executable(ensaht ensaht.c mqtt.c)
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# Add the standard include files to the build
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target_include_directories(ensaht PRIVATE
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${CMAKE_CURRENT_LIST_DIR}
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${CMAKE_CURRENT_LIST_DIR}/.. # for our common lwipopts or any other standard includes, if required
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)
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pico_set_program_name(ensaht "ensaht")
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pico_set_program_version(ensaht "0.1")
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pico_enable_stdio_usb(ensaht 1)
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@ -37,23 +41,19 @@ target_link_libraries(ensaht
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hardware_gpio
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hardware_divider
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pico_double
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pico_cyw43_arch_lwip_threadsafe_background
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pico_lwip_mqtt
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pico_lwip_mbedtls
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pico_mbedtls
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pico_stdlib)
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if (PICO_CYW43_SUPPORTED)
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target_link_libraries(ensaht pico_cyw43_arch_none)
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endif()
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# Add the standard include files to the build
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target_include_directories(ensaht PRIVATE
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${CMAKE_CURRENT_LIST_DIR}
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${CMAKE_CURRENT_LIST_DIR}/.. # for our common lwipopts or any other standard includes, if required
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)
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pico_add_extra_outputs(ensaht)
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add_custom_target(flash
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COMMAND openocd
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-f interface/cmsis-dap.cfg
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-f target/rp2350.cfg
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-c "adapter speed 5000"
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-f target/rp2040.cfg
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-c "adapter speed 10000"
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-c "program ${CMAKE_CURRENT_BINARY_DIR}/ensaht.elf verify reset exit"
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DEPENDS ensaht
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)
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153
ensaht.c
153
ensaht.c
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@ -1,13 +1,16 @@
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#include "hardware/gpio.h"
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#include "hardware/i2c.h"
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#include "mqtt.h"
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#include "pico/cyw43_arch.h"
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#include "pico/stdlib.h"
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#include <boards/pico_w.h>
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#include <hardware/structs/io_bank0.h>
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#include <pico/binary_info/code.h>
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#include <pico/double.h>
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#include <pico/error.h>
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#include <stdio.h>
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// I2C device defines
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#define AHT_ADDR 0x38
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#define ENS_ADDR 0x53
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uint8_t AHT_MEASURE[3] = {0xAC, 0x33, 0x00};
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@ -22,6 +25,48 @@ uint8_t ENS_IDLE[2] = {0x10, 0x01};
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#define ENS_ECO2 0x24
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#define ENS_ETOH 0x26
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#define AVERAGES 16
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// MQTT and WiFi defines
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#define ADAFRUIT_IO_HOST "io.adafruit.com"
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#define ADAFRUIT_IO_USERNAME "ADAFRUIT_IO_USERNAME"
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#define ADAFRUIT_IO_PASSWORD "ADAFRUIT_IO_KEY"
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#define WIFI_SSID "Meosjin"
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#define WIFI_PASSWORD "WIFI_PASSWORD"
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#define MQTT_KEEP_ALIVE_SECONDS 60
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// MQTT Topics
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char temp_topic[] = "ADAFRUIT_IO_USERNAME/feeds/ensaht.temperature";
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char humi_topic[] = "ADAFRUIT_IO_USERNAME/feeds/ensaht.humidity";
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char aqi_topic[] = "ADAFRUIT_IO_USERNAME/feeds/ensaht.aqi";
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char tvoc_topic[] = "ADAFRUIT_IO_USERNAME/feeds/ensaht.tvoc";
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char etoh_topic[] = "ADAFRUIT_IO_USERNAME/feeds/ensaht.etoh";
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char eco2_topic[] = "ADAFRUIT_IO_USERNAME/feeds/ensaht.eco2";
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static void mqtt_connection_cb(mqtt_client_t *client, void *arg,
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mqtt_connection_status_t status) {
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LWIP_UNUSED_ARG(client);
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LWIP_UNUSED_ARG(arg);
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printf("MQTT status: %d\n", status);
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}
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static double average_double(const double *samples, uint8_t count) {
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double sum = 0.0;
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for (uint8_t i = 0; i < count; i++) {
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sum += samples[i];
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}
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return sum / count;
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}
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static uint16_t average_uint16(const uint16_t *samples, uint8_t count) {
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uint32_t sum = 0;
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for (uint8_t i = 0; i < count; i++) {
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sum += samples[i];
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}
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return (uint16_t)((sum + count / 2) / count);
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}
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void getAHTData(double *t, double *h) {
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uint8_t result[6];
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uint32_t temperature, humidity;
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@ -54,7 +99,6 @@ uint8_t getENSData(double *t, double *h, uint8_t *AQI, uint16_t *TVOC,
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(uint8_t)(RH & 0x00FF), (uint8_t)(RH >> 8)};
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uint8_t result[7], dataReg = ENS_AQI, valid;
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i2c_write_blocking(i2c_default, ENS_ADDR, inputData, 5, false);
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activateENS();
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sleep_ms(100);
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i2c_write_blocking(i2c_default, ENS_ADDR, &dataReg, 1, true);
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i2c_read_blocking(i2c_default, ENS_ADDR, result, 7, false);
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@ -65,19 +109,62 @@ uint8_t getENSData(double *t, double *h, uint8_t *AQI, uint16_t *TVOC,
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dataReg = 0x20; // status register
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i2c_write_blocking(i2c_default, ENS_ADDR, &dataReg, 1, true);
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i2c_read_blocking(i2c_default, ENS_ADDR, result, 1, false);
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printf("Status register is 0x%0X\n", result[0]);
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valid = (result[0] & ENS_STATUS_MASK) == 0
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? 1
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: 0; // check if we are in warm-up or normal mode
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// deactivateENS();
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return valid;
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}
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int main() {
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uint16_t tvoc, eco2, etoh;
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uint16_t tvoc, eco2, etoh, avg_tvoc, avg_eco2, avg_etoh;
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uint8_t aqi, validData;
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double t, h;
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double t, h, avg_t, avg_h;
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uint16_t tvoc_avg[AVERAGES], eco2_avg[AVERAGES], etoh_avg[AVERAGES];
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double t_avg[AVERAGES], h_avg[AVERAGES];
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char payload[32];
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// MQTT setup
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ensaht_mqtt_t mqtt;
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struct mqtt_connect_client_info_t mqtt_client_info = {
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.client_id = ADAFRUIT_IO_USERNAME,
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.client_user = ADAFRUIT_IO_USERNAME,
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.client_pass = ADAFRUIT_IO_PASSWORD,
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.keep_alive = MQTT_KEEP_ALIVE_SECONDS,
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};
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// setup stdio
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stdio_init_all();
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// wifi chip initialization
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if (cyw43_arch_init_with_country(CYW43_COUNTRY_CANADA)) {
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printf("failed to initialise\n");
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return 1;
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}
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cyw43_arch_enable_sta_mode();
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int wifierr = 1;
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wifierr = cyw43_arch_wifi_connect_timeout_ms(WIFI_SSID, WIFI_PASSWORD,
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CYW43_AUTH_WPA2_AES_PSK, 30000);
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if (wifierr) {
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printf("failed to connect to Wi-Fi, reason %d\n", wifierr);
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switch (wifierr) {
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case PICO_ERROR_BADAUTH:
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printf("Password incorrect.\n");
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break;
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case PICO_ERROR_TIMEOUT:
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printf("Timeout ran out before connection.\n");
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break;
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case PICO_ERROR_CONNECT_FAILED:
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printf("A damn generic error code.\n");
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break;
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default:
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printf("Not a known error code.\n");
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break;
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}
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}
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ensaht_mqtt_init(&mqtt);
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err_t mqtt_err =
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ensaht_mqtt_connect(&mqtt, ADAFRUIT_IO_HOST, MQTT_PORT, &mqtt_client_info,
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mqtt_connection_cb, NULL);
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if (mqtt_err != ERR_OK) {
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printf("MQTT connect start failed: %d\n", mqtt_err);
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}
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i2c_init(i2c_default, 100 * 1000); // start i2c at 100khz
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gpio_set_function(PICO_DEFAULT_I2C_SCL_PIN, GPIO_FUNC_I2C);
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gpio_set_function(PICO_DEFAULT_I2C_SDA_PIN, GPIO_FUNC_I2C);
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@ -86,16 +173,56 @@ int main() {
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bi_decl(bi_2pins_with_func(PICO_DEFAULT_I2C_SDA_PIN, PICO_DEFAULT_I2C_SCL_PIN,
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GPIO_FUNC_I2C));
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printf("\x1b[2J"); // clear screen
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uint8_t i = 0;
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uint8_t sample_count = 0;
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activateENS();
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while (1) {
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// cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
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getAHTData(&t, &h);
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printf("Temperature %f Humidity %f\n", t, h);
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validData = getENSData(&t, &h, &aqi, &tvoc, &eco2, &etoh);
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if (!validData) {
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printf("ENS Data not yet valid\n");
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t_avg[i] = t;
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h_avg[i] = h;
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if (sample_count < AVERAGES) {
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sample_count++;
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}
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printf("AQI: %d TVOC: %d eCO2: %d EtOH: %d\n", aqi, tvoc, eco2, etoh);
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sleep_ms(2000);
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avg_t = average_double(t_avg, sample_count);
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avg_h = average_double(h_avg, sample_count);
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printf("\x1b[J\x1b[HTemperature %0.2f Humidity %0.2f\n", avg_t, avg_h);
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validData = getENSData(&avg_t, &avg_h, &aqi, &tvoc, &eco2, &etoh);
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tvoc_avg[i] = tvoc;
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eco2_avg[i] = eco2;
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etoh_avg[i] = etoh;
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avg_tvoc = average_uint16(tvoc_avg, sample_count);
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avg_eco2 = average_uint16(eco2_avg, sample_count);
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avg_etoh = average_uint16(etoh_avg, sample_count);
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if (!validData) {
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printf("!! ");
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}
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printf("AQI: %d TVOC: %d eCO2: %d EtOH: %d\n", aqi, avg_tvoc, avg_eco2,
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avg_etoh);
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// cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
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i++;
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if (i == AVERAGES)
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i = 0;
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snprintf(payload, sizeof(payload), "%.2f", avg_t);
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ensaht_mqtt_publish_client(&mqtt, temp_topic, payload, strlen(payload),
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NULL, NULL);
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snprintf(payload, sizeof(payload), "%.2f", avg_h);
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ensaht_mqtt_publish_client(&mqtt, humi_topic, payload, strlen(payload),
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NULL, NULL);
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snprintf(payload, sizeof(payload), "%d", avg_tvoc);
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ensaht_mqtt_publish_client(&mqtt, tvoc_topic, payload, strlen(payload),
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NULL, NULL);
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snprintf(payload, sizeof(payload), "%d", avg_eco2);
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ensaht_mqtt_publish_client(&mqtt, eco2_topic, payload, strlen(payload),
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NULL, NULL);
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snprintf(payload, sizeof(payload), "%d", avg_etoh);
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ensaht_mqtt_publish_client(&mqtt, etoh_topic, payload, strlen(payload),
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NULL, NULL);
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snprintf(payload, sizeof(payload), "%d", aqi);
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ensaht_mqtt_publish_client(&mqtt, aqi_topic, payload, strlen(payload), NULL,
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NULL);
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sleep_ms(30000);
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}
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return 0;
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33
lwipopts.h
Normal file
33
lwipopts.h
Normal file
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@ -0,0 +1,33 @@
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#ifndef _LWIPOPTS_H
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#define _LWIPOPTS_H
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// Generally you would define your own explicit list of lwIP options
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// (see https://www.nongnu.org/lwip/2_1_x/group__lwip__opts.html)
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//
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// This example uses a common include to avoid repetition
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#include "lwipopts_examples_common.h"
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/* TCP WND must be at least 16 kb to match TLS record size
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or you will get a warning "altcp_tls: TCP_WND is smaller than the RX decrypion buffer, connection RX might stall!" */
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#undef TCP_WND
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#define TCP_WND 16384
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#undef MEMP_NUM_SYS_TIMEOUT
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#define MEMP_NUM_SYS_TIMEOUT (LWIP_NUM_SYS_TIMEOUT_INTERNAL + 8)
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#undef MQTT_REQ_MAX_IN_FLIGHT
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#define MQTT_REQ_MAX_IN_FLIGHT 8
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#define LWIP_ALTCP 1
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// If you don't want to use TLS (just a http request) you can avoid linking to mbedtls and remove the following
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#define LWIP_ALTCP_TLS 1
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#define LWIP_ALTCP_TLS_MBEDTLS 1
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// Note bug in lwip with LWIP_ALTCP and LWIP_DEBUG
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// https://savannah.nongnu.org/bugs/index.php?62159
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//#define LWIP_DEBUG 1
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#undef LWIP_DEBUG
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#define ALTCP_MBEDTLS_DEBUG LWIP_DBG_ON
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#endif
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92
lwipopts_examples_common.h
Normal file
92
lwipopts_examples_common.h
Normal file
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@ -0,0 +1,92 @@
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#ifndef _LWIPOPTS_EXAMPLE_COMMONH_H
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#define _LWIPOPTS_EXAMPLE_COMMONH_H
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// Common settings used in most of the pico_w examples
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// (see https://www.nongnu.org/lwip/2_1_x/group__lwip__opts.html for details)
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// allow override in some examples
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#ifndef NO_SYS
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#define NO_SYS 1
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#endif
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// allow override in some examples
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#ifndef LWIP_SOCKET
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#define LWIP_SOCKET 0
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#endif
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#if PICO_CYW43_ARCH_POLL
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#define MEM_LIBC_MALLOC 1
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#else
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// MEM_LIBC_MALLOC is incompatible with non polling versions
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#define MEM_LIBC_MALLOC 0
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#endif
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#define MEM_ALIGNMENT 4
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#ifndef MEM_SIZE
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#define MEM_SIZE 4000
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#endif
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#define MEMP_NUM_TCP_SEG 32
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#define MEMP_NUM_ARP_QUEUE 10
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#define PBUF_POOL_SIZE 24
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#define LWIP_ARP 1
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#define LWIP_ETHERNET 1
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#define LWIP_ICMP 1
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#define LWIP_RAW 1
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#define TCP_WND (8 * TCP_MSS)
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#define TCP_MSS 1460
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#define TCP_SND_BUF (8 * TCP_MSS)
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#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1)) / (TCP_MSS))
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#define LWIP_NETIF_STATUS_CALLBACK 1
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#define LWIP_NETIF_LINK_CALLBACK 1
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#define LWIP_NETIF_HOSTNAME 1
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#define LWIP_NETCONN 0
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#define MEM_STATS 0
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#define SYS_STATS 0
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#define MEMP_STATS 0
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#define LINK_STATS 0
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// #define ETH_PAD_SIZE 2
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#define LWIP_CHKSUM_ALGORITHM 3
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#define LWIP_DHCP 1
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#define LWIP_IPV4 1
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#define LWIP_TCP 1
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#define LWIP_UDP 1
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#define LWIP_DNS 1
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#define LWIP_TCP_KEEPALIVE 1
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#define LWIP_NETIF_TX_SINGLE_PBUF 1
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#define DHCP_DOES_ARP_CHECK 0
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#define LWIP_DHCP_DOES_ACD_CHECK 0
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#ifndef NDEBUG
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#define LWIP_DEBUG 1
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#define LWIP_STATS 1
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#define LWIP_STATS_DISPLAY 1
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#endif
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#define ETHARP_DEBUG LWIP_DBG_OFF
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#define NETIF_DEBUG LWIP_DBG_OFF
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#define PBUF_DEBUG LWIP_DBG_OFF
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#define API_LIB_DEBUG LWIP_DBG_OFF
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#define API_MSG_DEBUG LWIP_DBG_OFF
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#define SOCKETS_DEBUG LWIP_DBG_OFF
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#define ICMP_DEBUG LWIP_DBG_OFF
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#define INET_DEBUG LWIP_DBG_OFF
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#define IP_DEBUG LWIP_DBG_OFF
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#define IP_REASS_DEBUG LWIP_DBG_OFF
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#define RAW_DEBUG LWIP_DBG_OFF
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#define MEM_DEBUG LWIP_DBG_OFF
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#define MEMP_DEBUG LWIP_DBG_OFF
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#define SYS_DEBUG LWIP_DBG_OFF
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#define TCP_DEBUG LWIP_DBG_OFF
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#define TCP_INPUT_DEBUG LWIP_DBG_OFF
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#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF
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#define TCP_RTO_DEBUG LWIP_DBG_OFF
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#define TCP_CWND_DEBUG LWIP_DBG_OFF
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#define TCP_WND_DEBUG LWIP_DBG_OFF
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#define TCP_FR_DEBUG LWIP_DBG_OFF
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#define TCP_QLEN_DEBUG LWIP_DBG_OFF
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#define TCP_RST_DEBUG LWIP_DBG_OFF
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#define UDP_DEBUG LWIP_DBG_OFF
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#define TCPIP_DEBUG LWIP_DBG_OFF
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#define PPP_DEBUG LWIP_DBG_OFF
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#define SLIP_DEBUG LWIP_DBG_OFF
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#define DHCP_DEBUG LWIP_DBG_OFF
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||||
|
||||
#endif /* __LWIPOPTS_H__ */
|
||||
6
mbedtls_config.h
Normal file
6
mbedtls_config.h
Normal file
|
|
@ -0,0 +1,6 @@
|
|||
#ifndef MBEDTLS_CONFIG_TLS_CLIENT_H
|
||||
#define MBEDTLS_CONFIG_TLS_CLIENT_H
|
||||
|
||||
#include "mbedtls_config_examples_common.h"
|
||||
|
||||
#endif
|
||||
75
mbedtls_config_examples_common.h
Normal file
75
mbedtls_config_examples_common.h
Normal file
|
|
@ -0,0 +1,75 @@
|
|||
#ifndef MBEDTLS_CONFIG_EXAMPLES_COMMON_H
|
||||
#define MBEDTLS_CONFIG_EXAMPLES_COMMON_H
|
||||
|
||||
/* Workaround for some mbedtls source files using INT_MAX without including limits.h */
|
||||
#include <limits.h>
|
||||
|
||||
#define MBEDTLS_NO_PLATFORM_ENTROPY
|
||||
#define MBEDTLS_ENTROPY_HARDWARE_ALT
|
||||
|
||||
#define MBEDTLS_SSL_OUT_CONTENT_LEN 2048
|
||||
|
||||
#define MBEDTLS_ALLOW_PRIVATE_ACCESS
|
||||
#define MBEDTLS_HAVE_TIME
|
||||
#define MBEDTLS_PLATFORM_MS_TIME_ALT
|
||||
|
||||
#define MBEDTLS_CIPHER_MODE_CBC
|
||||
#define MBEDTLS_ECP_DP_SECP192R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_SECP224R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_SECP521R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_SECP192K1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_SECP224K1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_SECP256K1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_BP256R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_BP384R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_BP512R1_ENABLED
|
||||
#define MBEDTLS_ECP_DP_CURVE25519_ENABLED
|
||||
#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
|
||||
#define MBEDTLS_PKCS1_V15
|
||||
#define MBEDTLS_SHA256_SMALLER
|
||||
#define MBEDTLS_SSL_SERVER_NAME_INDICATION
|
||||
#define MBEDTLS_AES_C
|
||||
#define MBEDTLS_ASN1_PARSE_C
|
||||
#define MBEDTLS_BIGNUM_C
|
||||
#define MBEDTLS_CIPHER_C
|
||||
#define MBEDTLS_CTR_DRBG_C
|
||||
#define MBEDTLS_ENTROPY_C
|
||||
#define MBEDTLS_ERROR_C
|
||||
#define MBEDTLS_MD_C
|
||||
#define MBEDTLS_MD5_C
|
||||
#define MBEDTLS_OID_C
|
||||
#define MBEDTLS_PKCS5_C
|
||||
#define MBEDTLS_PK_C
|
||||
#define MBEDTLS_PK_PARSE_C
|
||||
#define MBEDTLS_PLATFORM_C
|
||||
#define MBEDTLS_RSA_C
|
||||
#define MBEDTLS_SHA1_C
|
||||
#define MBEDTLS_SHA224_C
|
||||
#define MBEDTLS_SHA256_C
|
||||
#define MBEDTLS_SHA512_C
|
||||
#define MBEDTLS_SSL_CLI_C
|
||||
#define MBEDTLS_SSL_SRV_C
|
||||
#define MBEDTLS_SSL_TLS_C
|
||||
#define MBEDTLS_X509_CRT_PARSE_C
|
||||
#define MBEDTLS_X509_USE_C
|
||||
#define MBEDTLS_AES_FEWER_TABLES
|
||||
|
||||
/* TLS 1.2 */
|
||||
#define MBEDTLS_SSL_PROTO_TLS1_2
|
||||
#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
|
||||
#define MBEDTLS_GCM_C
|
||||
#define MBEDTLS_ECDH_C
|
||||
#define MBEDTLS_ECP_C
|
||||
#define MBEDTLS_ECDSA_C
|
||||
#define MBEDTLS_ASN1_WRITE_C
|
||||
|
||||
// The following is needed to parse a certificate
|
||||
#define MBEDTLS_PEM_PARSE_C
|
||||
#define MBEDTLS_BASE64_C
|
||||
|
||||
// The following significantly speeds up mbedtls due to NIST optimizations.
|
||||
#define MBEDTLS_ECP_NIST_OPTIM
|
||||
|
||||
#endif
|
||||
157
mqtt.c
Normal file
157
mqtt.c
Normal file
|
|
@ -0,0 +1,157 @@
|
|||
#include "mqtt.h"
|
||||
|
||||
#include "lwip/altcp.h"
|
||||
#include "lwip/altcp_tls.h"
|
||||
#include "lwip/apps/mqtt_priv.h"
|
||||
#include "lwip/dns.h"
|
||||
#include "pico/cyw43_arch.h"
|
||||
#include <string.h>
|
||||
|
||||
static void ensaht_mqtt_default_connect_cb(mqtt_client_t *client, void *arg,
|
||||
mqtt_connection_status_t status) {
|
||||
LWIP_UNUSED_ARG(client);
|
||||
LWIP_UNUSED_ARG(arg);
|
||||
LWIP_UNUSED_ARG(status);
|
||||
}
|
||||
|
||||
static err_t ensaht_mqtt_start(ensaht_mqtt_t *mqtt) {
|
||||
err_t err;
|
||||
|
||||
if (mqtt->client == NULL) {
|
||||
mqtt->client = mqtt_client_new();
|
||||
if (mqtt->client == NULL) {
|
||||
return ERR_MEM;
|
||||
}
|
||||
}
|
||||
|
||||
err = mqtt_client_connect(mqtt->client, &mqtt->server_addr, mqtt->port,
|
||||
mqtt->connect_cb, mqtt->connect_arg,
|
||||
&mqtt->client_info);
|
||||
#if LWIP_ALTCP && LWIP_ALTCP_TLS
|
||||
if (err == ERR_OK && mqtt->client_info.tls_config != NULL) {
|
||||
mbedtls_ssl_set_hostname(altcp_tls_context(mqtt->client->conn),
|
||||
mqtt->hostname);
|
||||
}
|
||||
#endif
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static void ensaht_mqtt_dns_found(const char *hostname, const ip_addr_t *ipaddr,
|
||||
void *arg) {
|
||||
ensaht_mqtt_t *mqtt = (ensaht_mqtt_t *)arg;
|
||||
LWIP_UNUSED_ARG(hostname);
|
||||
|
||||
if (ipaddr == NULL) {
|
||||
if (mqtt->connect_cb != NULL) {
|
||||
mqtt->connect_cb(mqtt->client, mqtt->connect_arg, MQTT_CONNECT_TIMEOUT);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
mqtt->server_addr = *ipaddr;
|
||||
cyw43_arch_lwip_begin();
|
||||
err_t err = ensaht_mqtt_start(mqtt);
|
||||
cyw43_arch_lwip_end();
|
||||
|
||||
if (err != ERR_OK && mqtt->connect_cb != NULL) {
|
||||
mqtt->connect_cb(mqtt->client, mqtt->connect_arg,
|
||||
MQTT_CONNECT_DISCONNECTED);
|
||||
}
|
||||
}
|
||||
|
||||
void ensaht_mqtt_init(ensaht_mqtt_t *mqtt) { memset(mqtt, 0, sizeof(*mqtt)); }
|
||||
|
||||
err_t ensaht_mqtt_connect(ensaht_mqtt_t *mqtt, const char *hostname, u16_t port,
|
||||
const struct mqtt_connect_client_info_t *client_info,
|
||||
mqtt_connection_cb_t cb, void *arg) {
|
||||
err_t err;
|
||||
|
||||
if (mqtt == NULL || hostname == NULL || client_info == NULL ||
|
||||
client_info->client_id == NULL) {
|
||||
return ERR_ARG;
|
||||
}
|
||||
|
||||
mqtt->hostname = hostname;
|
||||
mqtt->port = port != 0 ? port : MQTT_PORT;
|
||||
mqtt->client_info = *client_info;
|
||||
mqtt->connect_cb = cb != NULL ? cb : ensaht_mqtt_default_connect_cb;
|
||||
mqtt->connect_arg = arg;
|
||||
|
||||
cyw43_arch_lwip_begin();
|
||||
err = dns_gethostbyname(hostname, &mqtt->server_addr, ensaht_mqtt_dns_found,
|
||||
mqtt);
|
||||
if (err == ERR_OK) {
|
||||
err = ensaht_mqtt_start(mqtt);
|
||||
}
|
||||
cyw43_arch_lwip_end();
|
||||
|
||||
return err == ERR_INPROGRESS ? ERR_OK : err;
|
||||
}
|
||||
|
||||
void ensaht_mqtt_disconnect(ensaht_mqtt_t *mqtt) {
|
||||
if (mqtt == NULL || mqtt->client == NULL) {
|
||||
return;
|
||||
}
|
||||
|
||||
cyw43_arch_lwip_begin();
|
||||
mqtt_disconnect(mqtt->client);
|
||||
cyw43_arch_lwip_end();
|
||||
}
|
||||
|
||||
err_t ensaht_mqtt_publish(mqtt_client_t *client, const char *topic,
|
||||
const void *payload, u16_t payload_length,
|
||||
mqtt_request_cb_t cb, void *arg) {
|
||||
return mqtt_publish(client, topic, payload, payload_length, 1, 0, cb, arg);
|
||||
}
|
||||
|
||||
err_t ensaht_mqtt_publish_client(ensaht_mqtt_t *mqtt, const char *topic,
|
||||
const void *payload, u16_t payload_length,
|
||||
mqtt_request_cb_t cb, void *arg) {
|
||||
err_t err;
|
||||
|
||||
if (mqtt == NULL || mqtt->client == NULL) {
|
||||
return ERR_CONN;
|
||||
}
|
||||
|
||||
cyw43_arch_lwip_begin();
|
||||
err = ensaht_mqtt_publish(mqtt->client, topic, payload, payload_length, cb,
|
||||
arg);
|
||||
cyw43_arch_lwip_end();
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
err_t ensaht_mqtt_pingreq(mqtt_client_t *client) {
|
||||
static const u8_t pingreq[] = {0xC0, 0x00};
|
||||
err_t err;
|
||||
|
||||
LWIP_ASSERT_CORE_LOCKED();
|
||||
if (client == NULL || client->conn == NULL ||
|
||||
!mqtt_client_is_connected(client)) {
|
||||
return ERR_CONN;
|
||||
}
|
||||
|
||||
err =
|
||||
altcp_write(client->conn, pingreq, sizeof(pingreq), TCP_WRITE_FLAG_COPY);
|
||||
if (err == ERR_OK) {
|
||||
client->cyclic_tick = 0;
|
||||
err = altcp_output(client->conn);
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
err_t ensaht_mqtt_pingreq_client(ensaht_mqtt_t *mqtt) {
|
||||
err_t err;
|
||||
|
||||
if (mqtt == NULL || mqtt->client == NULL) {
|
||||
return ERR_CONN;
|
||||
}
|
||||
|
||||
cyw43_arch_lwip_begin();
|
||||
err = ensaht_mqtt_pingreq(mqtt->client);
|
||||
cyw43_arch_lwip_end();
|
||||
|
||||
return err;
|
||||
}
|
||||
31
mqtt.h
Normal file
31
mqtt.h
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
#ifndef ENSAHT_MQTT_H
|
||||
#define ENSAHT_MQTT_H
|
||||
|
||||
#include "lwip/apps/mqtt.h"
|
||||
|
||||
typedef struct {
|
||||
mqtt_client_t *client;
|
||||
ip_addr_t server_addr;
|
||||
const char *hostname;
|
||||
u16_t port;
|
||||
struct mqtt_connect_client_info_t client_info;
|
||||
mqtt_connection_cb_t connect_cb;
|
||||
void *connect_arg;
|
||||
} ensaht_mqtt_t;
|
||||
|
||||
void ensaht_mqtt_init(ensaht_mqtt_t *mqtt);
|
||||
err_t ensaht_mqtt_connect(ensaht_mqtt_t *mqtt, const char *hostname, u16_t port,
|
||||
const struct mqtt_connect_client_info_t *client_info,
|
||||
mqtt_connection_cb_t cb, void *arg);
|
||||
void ensaht_mqtt_disconnect(ensaht_mqtt_t *mqtt);
|
||||
|
||||
err_t ensaht_mqtt_publish(mqtt_client_t *client, const char *topic,
|
||||
const void *payload, u16_t payload_length,
|
||||
mqtt_request_cb_t cb, void *arg);
|
||||
err_t ensaht_mqtt_publish_client(ensaht_mqtt_t *mqtt, const char *topic,
|
||||
const void *payload, u16_t payload_length,
|
||||
mqtt_request_cb_t cb, void *arg);
|
||||
err_t ensaht_mqtt_pingreq(mqtt_client_t *client);
|
||||
err_t ensaht_mqtt_pingreq_client(ensaht_mqtt_t *mqtt);
|
||||
|
||||
#endif
|
||||
Loading…
Add table
Add a link
Reference in a new issue