driver_bmp280_shot.c

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#include "driver_bmp280_shot.h"
 
static bmp280_handle_t gs_handle;        

uint8_t bmp280_shot_init(bmp280_interface_t interface, bmp280_address_t addr_pin)
{
    uint8_t res;
    
    /* link interface function */
    DRIVER_BMP280_LINK_INIT(&gs_handle, bmp280_handle_t); 
    DRIVER_BMP280_LINK_IIC_INIT(&gs_handle, bmp280_interface_iic_init);
    DRIVER_BMP280_LINK_IIC_DEINIT(&gs_handle, bmp280_interface_iic_deinit);
    DRIVER_BMP280_LINK_IIC_READ(&gs_handle, bmp280_interface_iic_read);
    DRIVER_BMP280_LINK_IIC_WRITE(&gs_handle, bmp280_interface_iic_write);
    DRIVER_BMP280_LINK_SPI_INIT(&gs_handle, bmp280_interface_spi_init);
    DRIVER_BMP280_LINK_SPI_DEINIT(&gs_handle, bmp280_interface_spi_deinit);
    DRIVER_BMP280_LINK_SPI_READ(&gs_handle, bmp280_interface_spi_read);
    DRIVER_BMP280_LINK_SPI_WRITE(&gs_handle, bmp280_interface_spi_write);
    DRIVER_BMP280_LINK_DELAY_MS(&gs_handle, bmp280_interface_delay_ms);
    DRIVER_BMP280_LINK_DEBUG_PRINT(&gs_handle, bmp280_interface_debug_print);
    
    /* set interface */
    res = bmp280_set_interface(&gs_handle, interface);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set interface failed.\n");
       
        return 1;
    }
    
    /* set addr pin */
    res = bmp280_set_addr_pin(&gs_handle, addr_pin);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set addr pin failed.\n");
       
        return 1;
    }
    
    /* bmp280 init */
    res = bmp280_init(&gs_handle);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: init failed.\n");
        
        return 1;
    }
    
    /* set default temperatue oversampling */
    res = bmp280_set_temperatue_oversampling(&gs_handle, BMP280_SHOT_DEFAULT_TEMPERATURE_OVERSAMPLING);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set temperatue oversampling failed.\n");
        (void)bmp280_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set default pressure oversampling */
    res = bmp280_set_pressure_oversampling(&gs_handle, BMP280_SHOT_DEFAULT_PRESSURE_OVERSAMPLING);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set pressure oversampling failed.\n");
        (void)bmp280_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set default standby time */
    res = bmp280_set_standby_time(&gs_handle, BMP280_SHOT_DEFAULT_STANDBY_TIME);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set standby time failed.\n");
        (void)bmp280_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set default filter */
    res = bmp280_set_filter(&gs_handle, BMP280_SHOT_DEFAULT_FILTER);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set filter failed.\n");
        (void)bmp280_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set default spi wire */
    res = bmp280_set_spi_wire(&gs_handle, BMP280_SHOT_DEFAULT_SPI_WIRE);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set spi wire failed.\n");
        (void)bmp280_deinit(&gs_handle);
        
        return 1;
    }
    
    /* set shot mode */
    res = bmp280_set_mode(&gs_handle, BMP280_MODE_SLEEP);
    if (res != 0)
    {
        bmp280_interface_debug_print("bmp280: set mode failed.\n");
        (void)bmp280_deinit(&gs_handle);
        
        return 1;
    }
    
    return 0;
}

uint8_t bmp280_shot_read(float *temperature, float *pressure)
{
    uint32_t temperature_yaw;
    uint32_t pressure_yaw;
    
    /* read temperature and pressure */
    if (bmp280_read_temperature_pressure(&gs_handle, (uint32_t *)&temperature_yaw, 
                                         temperature, (uint32_t *)&pressure_yaw, pressure) != 0)
    {
        return 1;
    }
    
    return 0;
}

uint8_t bmp280_shot_deinit(void)
{
    /* close bmp280 */
    if (bmp280_deinit(&gs_handle) != 0)
    {
        return 1;
    }
    
    return 0;
}