driver_stts22h_interrupt_test.c

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#include "driver_stts22h_interrupt_test.h"
 
static stts22h_handle_t gs_handle;        
static volatile uint8_t gs_flag;          

static void a_receive_callback(uint8_t type)
{
    switch (type)
    {
        case STTS22H_STATUS_UNDER_LOW_LIMIT :
        {
            int16_t raw;
            float celsius_deg = 0.0f;
            
            stts22h_interface_debug_print("stts22h: irq under low limit.\n");
            (void)stts22h_continuous_read(&gs_handle, &raw, &celsius_deg);
            stts22h_interface_debug_print("stts22h: temperature is %0.2fC.\n", celsius_deg);
            gs_flag = 1;
            
            break;
        }
        case STTS22H_STATUS_OVER_HIGH_LIMIT :
        {
            int16_t raw;
            float celsius_deg = 0.0f;
            
            stts22h_interface_debug_print("stts22h: irq over high limit.\n");
            (void)stts22h_continuous_read(&gs_handle, &raw, &celsius_deg);
            stts22h_interface_debug_print("stts22h: temperature is %0.2fC.\n", celsius_deg);
            gs_flag = 1;
            
            break;
        }
        default :
        {
            stts22h_interface_debug_print("stts22h: unknown code.\n");
            
            break;
        }
    }
}

uint8_t stts22h_interrupt_test_irq_handler(void)
{
    if (stts22h_irq_handler(&gs_handle) != 0)
    {
        return 1;
    }
    
    return 0;
}

uint8_t stts22h_interrupt_test(stts22h_address_t addr_pin, float low_celsius_deg, float high_celsius_deg)
{
    uint8_t res;
    uint8_t reg;
    stts22h_info_t info;
    
    /* link interface function */
    DRIVER_STTS22H_LINK_INIT(&gs_handle, stts22h_handle_t);
    DRIVER_STTS22H_LINK_IIC_INIT(&gs_handle, stts22h_interface_iic_init);
    DRIVER_STTS22H_LINK_IIC_DEINIT(&gs_handle, stts22h_interface_iic_deinit);
    DRIVER_STTS22H_LINK_IIC_READ(&gs_handle, stts22h_interface_iic_read);
    DRIVER_STTS22H_LINK_IIC_WRITE(&gs_handle, stts22h_interface_iic_write);
    DRIVER_STTS22H_LINK_DELAY_MS(&gs_handle, stts22h_interface_delay_ms);
    DRIVER_STTS22H_LINK_DEBUG_PRINT(&gs_handle, stts22h_interface_debug_print);
    DRIVER_STTS22H_LINK_RECEIVE_CALLBACK(&gs_handle, a_receive_callback);
    
    /* get stts22h info */
    res = stts22h_info(&info);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: get info failed.\n");
        
        return 1;
    }
    else
    {
        /* print chip information */
        stts22h_interface_debug_print("stts22h: chip is %s.\n", info.chip_name);
        stts22h_interface_debug_print("stts22h: manufacturer is %s.\n", info.manufacturer_name);
        stts22h_interface_debug_print("stts22h: interface is %s.\n", info.interface);
        stts22h_interface_debug_print("stts22h: driver version is %d.%d.\n", info.driver_version / 1000, (info.driver_version % 1000) / 100);
        stts22h_interface_debug_print("stts22h: min supply voltage is %0.1fV.\n", info.supply_voltage_min_v);
        stts22h_interface_debug_print("stts22h: max supply voltage is %0.1fV.\n", info.supply_voltage_max_v);
        stts22h_interface_debug_print("stts22h: max current is %0.2fmA.\n", info.max_current_ma);
        stts22h_interface_debug_print("stts22h: max temperature is %0.1fC.\n", info.temperature_max);
        stts22h_interface_debug_print("stts22h: min temperature is %0.1fC.\n", info.temperature_min);
    }
    
    /* set addr pin */
    res = stts22h_set_addr_pin(&gs_handle, addr_pin);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: set addr pin failed.\n");
       
        return 1;
    }
    
    /* stts22h init */
    res = stts22h_init(&gs_handle);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: init failed.\n");
       
        return 1;
    }
    
    /* enable smbus timeout */
    res = stts22h_set_disable_smbus_timeout(&gs_handle, STTS22H_BOOL_FALSE);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: set disable smbus timeout failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* disable block data update */
    res = stts22h_set_block_data_update(&gs_handle, STTS22H_BOOL_FALSE);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: set block data update failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* enable iic address auto increment */
    res = stts22h_set_iic_address_auto_increment(&gs_handle, STTS22H_BOOL_TRUE);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: set iic address auto increment failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set output data rate 1hz */
    res = stts22h_set_output_data_rate(&gs_handle, STTS22H_OUTPUT_DATA_RATE_1HZ);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: set output data rate failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* temperature convert to register */
    res = stts22h_temperature_convert_to_register(&gs_handle, low_celsius_deg, &reg);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: temperature convert to register failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set temperature low limit */
    res = stts22h_set_temperature_low_limit(&gs_handle, reg);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: set temperature low limit failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* temperature convert to register */
    res = stts22h_temperature_convert_to_register(&gs_handle, high_celsius_deg, &reg);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: temperature convert to register failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set temperature high limit */
    res = stts22h_set_temperature_high_limit(&gs_handle, reg);
    if (res != 0)
    {
        stts22h_interface_debug_print("stts22h: set temperature high limit failed.\n");
        (void)stts22h_deinit(&gs_handle);
        
        return 1;
    }
    
    /* wait for interrupt */
    gs_flag = 0;
    while (gs_flag == 0)
    {
    }
    stts22h_interface_debug_print("stts22h: find interrupt.\n");
    
    /* finish interrupt test */
    stts22h_interface_debug_print("stts22h: finish interrupt test.\n");
    (void)stts22h_deinit(&gs_handle);
    
    return 0;
}