/************************************************************************/
/*                                                                      */
/*  File:           gpio.c                                              */
/*  Description:    general purpose input/output driver.                */
/*  Version:        1.0                                                 */
/*  Author:         Otto Mattik                                         */
/*                                                                      */
/*  (C)Copyright Otto Mattik 2014-2021.                                 */
/*                                                                      */
/*  This file is a part of 'armen' (a tiny operating system).           */
/*  'armen' is distributed under the CeCILL-V2.1 licence. For more      */
/*  details about this licence, please visit the website cecill.info    */
/*                                                                      */
/************************************************************************/

#include <stdarg.h>
#include "armen.h"

#ifdef __AVR_ARCH__
  #define AVR_GPIO_C
  #include "avr/gpio.c"
#endif

/*
 * initialize a gpio pin
 *
 * input:
 *  gpio        gpio pin
 *  mode        input or output
*/
void gpio_pin_mode( uint8_t gpio, uint8_t mode, ... )
{
#ifdef CHECK_PARAM
    if( gpio < (GPIO_MAX_PORT << 3) )
#endif
    {
        if( mode == GPIO_INPUT )
            gpio_pin_mode_input( gpio );
        else
#ifdef CHECK_PARAM
        if( mode == GPIO_OUTPUT )
#endif
        {
            va_list args;
            uint8_t value;

            va_start( args, mode );
            value = (uint8_t)va_arg( args, int );
            gpio_pin_mode_output( gpio, value );
            va_end( args );
        }
    }
}