driver_pcf8574_basic.c

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#include "driver_pcf8574_basic.h"
 
static pcf8574_handle_t gs_handle;        

uint8_t pcf8574_basic_init(pcf8574_address_t addr)
{
    uint8_t res;
    
    /* link functions */
    DRIVER_PCF8574_LINK_INIT(&gs_handle, pcf8574_handle_t);
    DRIVER_PCF8574_LINK_IIC_INIT(&gs_handle, pcf8574_interface_iic_init);
    DRIVER_PCF8574_LINK_IIC_DEINIT(&gs_handle, pcf8574_interface_iic_deinit);
    DRIVER_PCF8574_LINK_IIC_READ_COMMAND(&gs_handle, pcf8574_interface_iic_read_cmd);
    DRIVER_PCF8574_LINK_IIC_WRITE_COMMAND(&gs_handle, pcf8574_interface_iic_write_cmd);
    DRIVER_PCF8574_LINK_DELAY_MS(&gs_handle, pcf8574_interface_delay_ms);
    DRIVER_PCF8574_LINK_DEBUG_PRINT(&gs_handle, pcf8574_interface_debug_print);
    
    /* set addr pin */
    res = pcf8574_set_addr_pin(&gs_handle, addr);
    if (res != 0)
    {
        pcf8574_interface_debug_print("pcf8574: set addr pin failed.\n");
       
        return 1;
    }
    
    /* pcf8574 init */
    res = pcf8574_init(&gs_handle);
    if (res != 0)
    {
        pcf8574_interface_debug_print("pcf8574: init failed.\n");
       
        return 1;
    }
    
    return 0;
}

uint8_t pcf8574_basic_deinit(void)
{
    if (pcf8574_deinit(&gs_handle) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint8_t pcf8574_basic_read(pcf8574_pin_t pin, pcf8574_pin_level_t *level)
{
    if (pcf8574_read(&gs_handle, pin, level) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint8_t pcf8574_basic_write(pcf8574_pin_t pin, pcf8574_pin_level_t level)
{
    if (pcf8574_write(&gs_handle, pin, level) != 0)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}