memreset8610.c

/*  open8610 - memreset8610.c
 *
 *  Version 1.1
 *
 *  Control WS8610 weather station
 *
 *  reworked from work Copyright 2003-2005, Kenneth Lavrsen
 *  Copyright 2006 Phil Rayner
 *  Copyright 2011 Emanuele Iannone
 *  This program is published under the GNU General Public license
 */

#include "rw8610.h"

/********************************************************************
 * print_usage prints a short user guide
 *
 * Input:   none
 *
 * Output:  prints to stdout
 *
 * Returns: exits program
 *
 ********************************************************************/
void print_usage(void)
{
    printf("\n");
    printf("memreset8610 - wipes the history of a WS-8610 weather station\n");
    printf("Good to call when memory is full to prevent memory looping.\n");
    printf("Version 0.1 (C)2006 Phil Rayner.\n");
    printf("This program is released under the GNU General Public License (GPL)\n\n");
    printf("Usage: ./memreset8610 enable config_filename\n");
    printf("Set 'enable' to 1 to reset memory, otherwise a dry run.\n");
    printf("It writes 0 to addresses holding pointers for no of readings held\n");
    printf("-its obviously DANGEROUS to the data on your ws8610\n");
    exit(0);
}

/********** MAIN PROGRAM ************************************************
 *
 * Resets the memory on the ws8610
 * The first argument is a safety swtich 1 for go otherwise stop
 * The second argument is the config file name with path.
 * If this parameter is omitted the program will look at the default paths
 * See the open8610.conf-dist file for info
 *
 ***********************************************************************/
int main(int argc, char *argv[])
{
    WEATHERSTATION ws;
    struct config_type config;
    unsigned char data[2];
    int enable;
    unsigned char records[128];

    if (argc < 2 || argc > 3)
    {
        print_usage();
    }

    get_configuration(&config, argv[2]);
    ws = open_weatherstation(config.serial_device_name);

    enable = (int)strtol(argv[1],NULL,10);

    if (enable == 1)
    {
        printf("Wiping data history from the ws8610\n");
        data[0] = 0x80;
        data[1] = 0x02;
        write_data(ws, 0x0009, 2, data);
    }

    read_safe(ws, 0x0009, 2, records);

    printf("Data wiped if enable was used. Enable= %d\n", enable);
    printf("Number of valid records now is %d\n", history_length(records));

    close_weatherstation(ws);

    return (0);
}