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77 lines
2.0 KiB
77 lines
2.0 KiB
3 years ago
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/**
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* Utilities and helpers
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*/
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#ifndef CSPEMU_UTILS_H
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#define CSPEMU_UTILS_H
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include <string.h>
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#include <nvs.h>
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#include <common_utils/utils.h>
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/** Error check macro for FreeRTOS status codes */
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#define RTOS_ERROR_CHECK(code) if (pdPASS != (code)) ESP_ERROR_CHECK(ESP_FAIL);
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/** Error check macro for NULL return value */
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#define NULL_CHECK(code) if (NULL == (code)) ESP_ERROR_CHECK(ESP_FAIL);
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/** Error check macro for CSP status codes */
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#define CSP_ERROR_CHECK(code) if (CSP_ERR_NONE != (code)) ESP_ERROR_CHECK(ESP_FAIL);
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/**
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* Reconnect to WiFi if there are saved credentials.
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* Called from the main event group handler.
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*/
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void try_reconn_if_have_wifi_creds(void);
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/**
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* Helper to retrieve a bool value from the NVS. Internally uses 'u8'
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*
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* @param handle - NVS storage
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* @param key
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* @param out_value
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* @return success
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*/
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esp_err_t nvs_get_bool(nvs_handle handle, const char* key, bool* out_value);
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/**
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* Helper to store a bool into the NVS. Internally uses 'u8'
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*
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* @param handle - NVS storage
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* @param key
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* @param value
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* @return success
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*/
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esp_err_t nvs_set_bool(nvs_handle handle, const char* key, bool value);
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/**
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* Feed watchdogs (inside a busy wait loop)
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*/
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void feed_all_dogs(void);
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/**
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* @brief malloc() and snprintf() combined
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* @attention DO NOT use in if/for/do etc without braces.
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*
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* The caller is responsible for disposing of the allocated string afterwards.
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*/
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#define malloc_sprintf(var, n, format, ...) \
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char *var = calloc(n, 1); \
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if (!var) assert(0); \
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snprintf(var, n, format, ##__VA_ARGS__);
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/**
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* Generate externs for an embedded file.
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* Variables {varname} and {varname}_end will be produced.
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*/
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#define efile(varname, filename) \
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extern const char varname[] asm("_binary_"filename"_start"); \
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extern const char varname##_end[] asm("_binary_"filename"_end");
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/** Get embedded file size (must be declared with efile() first) */
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#define efsize(varname) ((varname##_end) - (varname))
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#endif //CSPEMU_UTILS_H
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