driver_max30205_interrupt.c

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#include "driver_max30205_interrupt.h"
 
static max30205_handle_t gs_handle;        

uint8_t max30205_interrupt_init(max30205_address_t addr_pin, max30205_interrupt_mode_t mode, float low, float high)
{
    uint8_t res;
    int16_t low_threshold;
    int16_t high_threshold;
    
    /* link interface function */
    DRIVER_MAX30205_LINK_INIT(&gs_handle, max30205_handle_t);
    DRIVER_MAX30205_LINK_IIC_INIT(&gs_handle, max30205_interface_iic_init);
    DRIVER_MAX30205_LINK_IIC_DEINIT(&gs_handle, max30205_interface_iic_deinit);
    DRIVER_MAX30205_LINK_IIC_READ(&gs_handle, max30205_interface_iic_read);
    DRIVER_MAX30205_LINK_IIC_WRITE(&gs_handle, max30205_interface_iic_write);
    DRIVER_MAX30205_LINK_DELAY_MS(&gs_handle, max30205_interface_delay_ms);
    DRIVER_MAX30205_LINK_DEBUG_PRINT(&gs_handle, max30205_interface_debug_print);
    
    /* set max30205 iic address */
    res = max30205_set_addr_pin(&gs_handle, addr_pin);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set addr pin failed.\n");
        
        return 1;
    }
    
    /* max30205 init */
    res = max30205_init(&gs_handle);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: init failed.\n");
        
        return 1;
    }
    
    /* set data format */
    res = max30205_set_data_format(&gs_handle, MAX30205_INTERRUPT_DEFAULT_DATA_FORMAT);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set data format failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set interrupt mode */
    res = max30205_set_interrupt_mode(&gs_handle, mode);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set interrupt mode failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set fault queue */
    res = max30205_set_fault_queue(&gs_handle, MAX30205_INTERRUPT_DEFAULT_FAULT_QUEUE);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set fault queue failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set pin polarity */
    res = max30205_set_pin_polarity(&gs_handle, MAX30205_INTERRUPT_DEFAULT_PIN_POLARITY);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set pin polarity failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set bus timeout */
    res = max30205_set_bus_timeout(&gs_handle, MAX30205_INTERRUPT_DEFAULT_BUS_TIMEOUT);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set bus timeout failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* convert low threshold */
    res= max30205_convert_to_register(&gs_handle, low, (int16_t *)&low_threshold);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: convert to register failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set interrupt low threshold */
    res = max30205_set_interrupt_low_threshold(&gs_handle, low_threshold);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set low threshold failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* convert high threshold */
    res = max30205_convert_to_register(&gs_handle, high, (int16_t *)&high_threshold);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: convert to register failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set interrupt high threshold */
    res = max30205_set_interrupt_high_threshold(&gs_handle, high_threshold);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: set high threshold failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    /* start continuous read */
    res = max30205_start_continuous_read(&gs_handle);
    if (res != 0)
    {
        max30205_interface_debug_print("max30205: start continuous read failed.\n");
        (void)max30205_deinit(&gs_handle);
        
        return 1;
    }
    
    return 0;
}

uint8_t max30205_interrupt_read(float *s)
{
    int16_t raw;
    
    /* read data */
    if (max30205_continuous_read(&gs_handle, (int16_t *)&raw, s) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint8_t max30205_interrupt_deinit(void)
{
    uint8_t res;
    
    /* stop continuous read */
    res = max30205_stop_continuous_read(&gs_handle);
    if (res != 0)
    {
        return 1;
    }
    
    /* close max30205 */
    if (max30205_deinit(&gs_handle) != 0)
    {
        return 1;
    }
    
    return 0;
}