driver_em4100_basic.c

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#include "driver_em4100_basic.h"
 
static em4100_handle_t gs_handle;        

uint8_t em4100_basic_init(void)
{
    uint8_t res;
    
    /* link function */
    DRIVER_EM4100_LINK_INIT(&gs_handle, em4100_handle_t);
    DRIVER_EM4100_LINK_CONTACTLESS_INIT(&gs_handle, em4100_interface_contactless_init);
    DRIVER_EM4100_LINK_CONTACTLESS_DEINIT(&gs_handle, em4100_interface_contactless_deinit);
    DRIVER_EM4100_LINK_CONTACTLESS_READ(&gs_handle, em4100_interface_contactless_read);
    DRIVER_EM4100_LINK_DELAY_MS(&gs_handle, em4100_interface_delay_ms);
    DRIVER_EM4100_LINK_DEBUG_PRINT(&gs_handle, em4100_interface_debug_print);
    
    /* init */
    res = em4100_init(&gs_handle);
    if (res != 0)
    {
        em4100_interface_debug_print("em4100: init failed.\n");
        
        return 1;
    }
    
    return 0;
}

uint8_t em4100_basic_deinit(void)
{
    uint8_t res;
    
    /* deinit */
    res = em4100_deinit(&gs_handle);
    if (res != 0)
    {
        return 1;
    }
    
    return 0;
}

uint8_t em4100_basic_search(uint8_t id[5], int32_t timeout)
{
    uint8_t res;
    
    /* loop */
    while (1)
    {
        /* request */
        res = em4100_read(&gs_handle, id);
        if (res == 0)
        {
            return 0;
        }
        
        /* delay */
        em4100_interface_delay_ms(EM4100_BASIC_DEFAULT_SEARCH_DELAY_MS);
        
        /* check the timeout */
        if (timeout < 0)
        {
            /* never timeout */
            continue;
        }
        else
        {
            /* timeout */
            if (timeout == 0)
            {
                return 1;
            }
            else
            {
                /* timout-- */
                timeout--;
            }
        }
    }
}

uint8_t em4100_basic_print(uint8_t id[5])
{
    if (em4100_print(&gs_handle, id) != 0)
    {
        return 1;
    }
    
    return 0;
}