driver_ds1307_basic.c

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#include "driver_ds1307_basic.h"
 
static ds1307_handle_t gs_handle;        
static int8_t gs_time_zone = 0;          

uint8_t ds1307_basic_init(void)
{
    uint8_t res;
 
    /* link functions */
    DRIVER_DS1307_LINK_INIT(&gs_handle, ds1307_handle_t);
    DRIVER_DS1307_LINK_IIC_INIT(&gs_handle, ds1307_interface_iic_init);
    DRIVER_DS1307_LINK_IIC_DEINIT(&gs_handle, ds1307_interface_iic_deinit);
    DRIVER_DS1307_LINK_IIC_READ(&gs_handle, ds1307_interface_iic_read);
    DRIVER_DS1307_LINK_IIC_WRITE(&gs_handle, ds1307_interface_iic_write);
    DRIVER_DS1307_LINK_DELAY_MS(&gs_handle, ds1307_interface_delay_ms);
    DRIVER_DS1307_LINK_DEBUG_PRINT(&gs_handle, ds1307_interface_debug_print);
 
    /* init ds1307 */
    res = ds1307_init(&gs_handle);
    if (res != 0)
    {
        ds1307_interface_debug_print("ds1307: init failed.\n");
 
        return 1;
    }
 
    /* set oscillator */
    res = ds1307_set_oscillator(&gs_handle, DS1307_BOOL_TRUE);
    if (res != 0)
    {
        ds1307_interface_debug_print("ds1307: set oscillator failed.\n");
        (void)ds1307_deinit(&gs_handle);
 
        return 1;
    }
 
    /* set output mode */
    res = ds1307_set_output_mode(&gs_handle, DS1307_OUTPUT_MODE_LEVEL);
    if (res != 0)
    {
        ds1307_interface_debug_print("ds1307: set output mode failed.\n");
        (void)ds1307_deinit(&gs_handle);
 
        return 1;
    }
 
    return 0;
}

uint8_t ds1307_basic_deinit(void)
{
    if (ds1307_deinit(&gs_handle) != 0)
    {
        return 1;
    }
 
    return 0;
}

uint8_t ds1307_basic_set_time(ds1307_time_t *t)
{
    /* set time */
    if (ds1307_set_time(&gs_handle, t) != 0)
    {
        return 1;
    }
 
    return 0;
}

uint8_t ds1307_basic_set_timestamp(time_t timestamp)
{
    ds1307_time_t t;
    struct tm *timeptr;
 
    /* convert times */
    timestamp += (time_t)(gs_time_zone * 3600);
    timeptr = localtime(&timestamp);
    t.am_pm = DS1307_AM;
    t.date = (uint8_t)timeptr->tm_mday;
    t.format = DS1307_FORMAT_24H;
    t.hour = (uint8_t)timeptr->tm_hour;
    t.minute = (uint8_t)timeptr->tm_min;
    t.month = (uint8_t)timeptr->tm_mon + 1;
    t.second = (uint8_t)timeptr->tm_sec;
    if (timeptr->tm_wday == 0)
    {
        t.week  = 7;
    }
    else
    {
        t.week = (uint8_t)timeptr->tm_wday;
    }
    t.year = (uint16_t)(timeptr->tm_year + 1900);
 
    /* set time */
    if (ds1307_set_time(&gs_handle, &t) != 0)
    {
        return 1;
    }
 
    return 0;
}

uint8_t ds1307_basic_set_timestamp_time_zone(int8_t zone)
{
    gs_time_zone = zone;
 
    return 0;
}

uint8_t ds1307_basic_get_time(ds1307_time_t *t)
{
    /* get time */
    if (ds1307_get_time(&gs_handle, t) != 0)
    {
        return 1;
    }
 
    return 0;
}

uint8_t ds1307_basic_get_timestamp(time_t *timestamp)
{
    ds1307_time_t t;
    struct tm timeptr;
 
    /* get time */
    if (ds1307_get_time(&gs_handle, &t) != 0)
    {
        return 1;
    }
    timeptr.tm_year = t.year - 1900;
    timeptr.tm_mon = t.month - 1;
    timeptr.tm_wday = t.week;
    timeptr.tm_mday = t.date;
    if (t.format == DS1307_FORMAT_24H)
    {
        timeptr.tm_hour = t.hour;
    }
    else
    {
        timeptr.tm_hour = t.hour % 12 + t.am_pm * 12;
    }
    timeptr.tm_min = t.minute;
    timeptr.tm_sec = t.second;
 
    /* make time */
    *timestamp = mktime(&timeptr) - gs_time_zone * 3600;
 
    return 0;
}

uint8_t ds1307_basic_get_timestamp_time_zone(int8_t *zone)
{
    *zone = gs_time_zone;
 
    return 0;
}

uint8_t ds1307_basic_get_ascii_time(char *buf, uint8_t len)
{
    ds1307_time_t t;
 
    /* get time */
    if (ds1307_get_time(&gs_handle, &t) != 0)
    {
        return 1;
    }
 
    if (t.format == DS1307_FORMAT_24H)
    {
        (void)snprintf(buf, len, "%04d-%02d-%02d %02d:%02d:%02d %d.\n", t.year, t.month, t.date, t.hour, t.minute, t.second, t.week);
    }
    else
    {
        (void)snprintf(buf, len, "%04d-%02d-%02d %s %02d:%02d:%02d %d.\n", t.year, t.month, t.date, (t.am_pm == DS1307_AM) ? "AM" : "PM",
                       t.hour, t.minute, t.second, t.week
                      );
    }
 
    return 0;
}

uint8_t ds1307_basic_read_ram(uint8_t addr, uint8_t *buf, uint8_t len)
{
    if (ds1307_read_ram(&gs_handle, addr, buf, len) != 0)
    {
        return 1;
    }
 
    return 0;
}

uint8_t ds1307_basic_write_ram(uint8_t addr, uint8_t *buf, uint8_t len)
{
    if (ds1307_write_ram(&gs_handle, addr, buf, len) != 0)
    {
        return 1;
    }
 
    return 0;
}