AMiRo-OS

/*

AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.

Copyright (C) 2016..2019  Thomas Schöpping et al.

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU Lesser General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License

along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

/**

 * @file    alld_led.h

 * @brief   Led macros and structures.

 *

 * @addtogroup lld_led

 * @{

 */

#ifndef AMIROLLD_LED_H

#define AMIROLLD_LED_H

#include <amiro-lld.h>

#if defined(AMIROLLD_CFG_USE_LED) || defined(__DOXYGEN__)

/******************************************************************************/

/* CONSTANTS                                                                  */

/******************************************************************************/

/**

 * @brief Active state of LED GPIO (low active).

 */

#define LED_LLD_GPIO_ACTIVE_STATE APAL_GPIO_ACTIVE_LOW

/******************************************************************************/

/* SETTINGS                                                                   */

/******************************************************************************/

/******************************************************************************/

/* CHECKS                                                                     */

/******************************************************************************/

/******************************************************************************/

/* DATA STRUCTURES AND TYPES                                                  */

/******************************************************************************/

/**

 * @brief LED driver data structure.

 */

typedef struct {

  const apalControlGpio_t* gpio;  /**< @brief The identifier of the GPIO.  */

} LEDDriver;

/**

 * @brief The state of the LED.

 */

typedef enum {

  LED_LLD_STATE_OFF = 0x00,   /**< 'on' state of the LED */

  LED_LLD_STATE_ON  = 0x01,   /**< 'off' state of the LED */

} led_lld_state_t;

/******************************************************************************/

/* MACROS                                                                     */

/******************************************************************************/

/******************************************************************************/

/* EXTERN DECLARATIONS                                                        */

/******************************************************************************/

#ifdef __cplusplus

extern "C" {

#endif

  apalExitStatus_t led_lld_set(const LEDDriver* const led, const led_lld_state_t state);

  apalExitStatus_t led_lld_get(const LEDDriver* const led, led_lld_state_t* const state);

  apalExitStatus_t led_lld_toggle(const LEDDriver* const led);

#ifdef __cplusplus

}

#endif

/******************************************************************************/

/* INLINE FUNCTIONS                                                           */

/******************************************************************************/

#endif /* defined(AMIROLLD_CFG_USE_LED) */

#endif /* AMIROLLD_LED_H */

/** @} */