driver_max44009_interrupt.c

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#include "driver_max44009_interrupt.h"
 
static max44009_handle_t gs_handle;        

uint8_t max44009_interrupt_init(max44009_address_t addr_pin, float low_threshold_lux, float high_threshold_lux, float time_ms)
{
    uint8_t res;
    uint8_t reg;
    
    /* link interface function */
    DRIVER_MAX44009_LINK_INIT(&gs_handle, max44009_handle_t);
    DRIVER_MAX44009_LINK_IIC_INIT(&gs_handle, max44009_interface_iic_init);
    DRIVER_MAX44009_LINK_IIC_DEINIT(&gs_handle, max44009_interface_iic_deinit);
    DRIVER_MAX44009_LINK_IIC_READ(&gs_handle, max44009_interface_iic_read);
    DRIVER_MAX44009_LINK_IIC_WRITE(&gs_handle, max44009_interface_iic_write);
    DRIVER_MAX44009_LINK_DELAY_MS(&gs_handle, max44009_interface_delay_ms);
    DRIVER_MAX44009_LINK_DEBUG_PRINT(&gs_handle, max44009_interface_debug_print);
    
    /* set the addr pin */
    res = max44009_set_addr_pin(&gs_handle, addr_pin);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set addr pin failed.\n");
       
        return 1;
    }
    
    /* init */
    res = max44009_init(&gs_handle);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: init failed.\n");
       
        return 1;
    }
    
    /* set default auto range */
    res = max44009_set_auto_range(&gs_handle, MAX44009_INTERRUPT_DEFAULT_AUTO_RANGE);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set auto range failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set default continuous mode */
    res = max44009_set_continuous_mode(&gs_handle, MAX44009_INTERRUPT_DEFAULT_CONTINUOUS_MODE);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set continuous mode failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
#if (MAX44009_BASIC_DEFAULT_AUTO_RANGE != MAX44009_BOOL_FALSE)
    /* set default current div 8 */
    res = max44009_set_current_div_8(&gs_handle, MAX44009_INTERRUPT_DEFAULT_CURRENT_DIV_8);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set current div 8 failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set default integration time */
    res = max44009_set_integration_time(&gs_handle, MAX44009_INTERRUPT_DEFAULT_INTEGRATION_TIME);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set integration time failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
#endif
    
    /* threshold convert to register */
    res = max44009_threshold_convert_to_register(&gs_handle, low_threshold_lux, &reg);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: threshold convert to register failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set interrupt low threshold */
    res = max44009_set_interrupt_low_threshold(&gs_handle, reg);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set interrupt low threshold failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* threshold convert to register */
    res = max44009_threshold_convert_to_register(&gs_handle, high_threshold_lux, &reg);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: threshold convert to register failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set interrupt high threshold */
    res = max44009_set_interrupt_high_threshold(&gs_handle, reg);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set interrupt high threshold failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* timer convert to register */
    res = max44009_timer_convert_to_register(&gs_handle, time_ms, &reg);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: timer convert to register failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set threshold timer */
    res = max44009_set_threshold_timer(&gs_handle, reg);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set threshold timer failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    /* enable interrupt */
    res = max44009_set_interrupt(&gs_handle, MAX44009_BOOL_TRUE);
    if (res != 0)
    {
        max44009_interface_debug_print("max44009: set interrupt failed.\n");
        (void)max44009_deinit(&gs_handle);
        
        return 1;
    }
    
    return 0;
}

uint8_t max44009_interrupt_read(float *lux)
{
    uint8_t res;
    uint16_t raw;
    
    /* read */
    res = max44009_read(&gs_handle, &raw, lux);
    if (res != 0)
    {
        return 1;
    }
    
    return 0;
}

uint8_t max44009_interrupt_deinit(void)
{
    uint8_t res;
    
    /* deinit */
    res = max44009_deinit(&gs_handle);
    if (res != 0)
    {
        return 1;
    }
    
    return 0;
}