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RIOT/drivers/rgbled/rgbled.c 1.15 KB
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  /*
   * Copyright (C) 2014 Freie Universitรคt Berlin
   *
   * This file is subject to the terms and conditions of the GNU Lesser General
   * Public License v2.1. See the file LICENSE in the top level directory for more
   * details.
   */
  
  /**
   * @ingroup     drivers_rgbled
   * @{
   *
   * @file
   * @brief       High-level driver for easy handling of RGB-LEDs
   *
   * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
   *
   * @}
   */
  
  #include "rgbled.h"
  
  
  /**
   * @name Drive the RGB-LED by default with 500Hz
   */
  #define PWM_FREQU       (500)
  
  /**
   * @name Set the default resolution to 8-bit per color (for a 24-bit color space)
   */
  #define PWM_RES         (255)
  
  
  void rgbled_init(rgbled_t *led, pwm_t pwm, int channel_r, int channel_g, int channel_b)
  {
      led->device = pwm;
      led->channel_r = channel_r;
      led->channel_g = channel_g;
      led->channel_b = channel_b;
      pwm_init(pwm, PWM_LEFT, PWM_FREQU, PWM_RES);
  }
  
  void rgbled_set(const rgbled_t *led, color_rgb_t *color)
  {
      pwm_set(led->device, led->channel_r, (unsigned int)color->r);
      pwm_set(led->device, led->channel_g, (unsigned int)color->g);
      pwm_set(led->device, led->channel_b, (unsigned int)color->b);
  }