esp32 firmware for a toaster reflow oven WIP!!!!!
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reflower/main/utils.h

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2.1 KiB

/**
* Utilities and helpers
*/
#ifndef CSPEMU_UTILS_H
#define CSPEMU_UTILS_H
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include <string.h>
#include <nvs.h>
#include <common_utils/utils.h>
/** Error check macro for FreeRTOS status codes */
#define RTOS_ERROR_CHECK(code) if (pdPASS != (code)) ESP_ERROR_CHECK(ESP_FAIL);
/** Error check macro for NULL return value */
#define NULL_CHECK(code) if (NULL == (code)) ESP_ERROR_CHECK(ESP_FAIL);
/** Error check macro for CSP status codes */
#define CSP_ERROR_CHECK(code) if (CSP_ERR_NONE != (code)) ESP_ERROR_CHECK(ESP_FAIL);
/**
* Reconnect to WiFi if there are saved credentials.
* Called from the main event group handler.
*/
void try_reconn_if_have_wifi_creds(void);
/**
* Helper to retrieve a bool value from the NVS. Internally uses 'u8'
*
* @param handle - NVS storage
* @param key
* @param out_value
* @return success
*/
esp_err_t nvs_get_bool(nvs_handle handle, const char* key, bool* out_value);
/**
* Helper to store a bool into the NVS. Internally uses 'u8'
*
* @param handle - NVS storage
* @param key
* @param value
* @return success
*/
esp_err_t nvs_set_bool(nvs_handle handle, const char* key, bool value);
/**
* Feed watchdogs (inside a busy wait loop)
*/
void feed_all_dogs(void);
/**
* @brief malloc() and snprintf() combined
* @attention DO NOT use in if/for/do etc without braces.
*
* The caller is responsible for disposing of the allocated string afterwards.
*/
#define malloc_sprintf(var, n, format, ...) \
char *var = malloc(n); \
if (!var) assert(0); \
snprintf(var, n, format, ##__VA_ARGS__);
/**
* Generate externs for an embedded file.
* Variables {varname} and {varname}_end will be produced.
*/
#define efile(varname, filename) \
extern const char varname[] asm("_binary_"filename"_start"); \
extern const char varname##_end[] asm("_binary_"filename"_end");
/** Get embedded file size (must be declared with efile() first) */
#define efsize(varname) (varname##_end - varname)
union uf32 {
uint32_t u;
float f;
};
#endif //CSPEMU_UTILS_H