module_universal_io/fw/modules/log/log_api.c

#include "log_api.h"
#include "log.h"
#include "rtc.h"
#include "ringfs.h"
#include "spi_flash.h"
#include "FreeRTOS.h"
#include "task.h"
#include "semphr.h"
#include "rtc.h"
#include <string.h>
#include <stdio.h>
#include <inttypes.h>

#undef DBG
#define DBG if(1)

extern struct ringfs fs_archive;

extern SemaphoreHandle_t log_mutex;

//
void log_get_entry_count(void)
{
    int count_flash = 0;
    
    count_flash = ringfs_count_exact(&fs_archive);
    printf("Count archive entry: %u\r\n", count_flash);
}

//
int log_get_entry(uint32_t index, struct ringfs *fs)
{
	archive_entry_t entry;
	int start = ringfs_count_estimate(fs);
	
    fs->cursor_position =  start - (index - 1) - 1;
    
	if (fs->cursor_position < 0)
		return -1;
	else
    {
		fs->cursor.sector = (fs->read.sector + fs->cursor_position/fs->slots_per_sector)%fs->flash->sector_count;
		fs->cursor.slot = fs->cursor_position%fs->slots_per_sector;
	}
    
    log_fetch(&entry, ARCHIVE_ENTRY, portMAX_DELAY);
    
    printf("[entry] timestamp = % " PRId64 ", value = %u, crc = %u\r\n", entry.timestamp, entry.input_value, entry.crc);
    
    return 0;
}