text: /****************************************************************************
   * configs/z16f2800100zcog/z16f_leds.c
   *
   *   Copyright (C) 2008, 2015 Gregory Nutt. All rights reserved.
   *   Author: Gregory Nutt <gnutt@nuttx.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   * 3. Neither the name NuttX nor the names of its contributors may be
   *    used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   ****************************************************************************/
  
  /* The z16f2800100zcog board has four LEDs:
   *
   * - Green LED D1 which illuminates in the presence of Vcc
   * - Red LED D2 connected to chip port PA0_T0IN
   * - Yellow LED D3 connected to chip port PA1_T0OUT
   * - Green LED D4 connected to chip port PA2_DE0
   */
  
  /****************************************************************************
   * Included Files
   ****************************************************************************/
  
  #include <nuttx/config.h>
  
  #include <nuttx/board.h>
  #include <arch/board/board.h>
  
  #include "up_internal.h"
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  
  /****************************************************************************
   * Private Data
   ****************************************************************************/
  
  /****************************************************************************
   * Private Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: board_autoled_initialize
   ****************************************************************************/
  
  #ifdef CONFIG_ARCH_LEDS
  void board_autoled_initialize(void)
  {
    /* The following is performed up_board_initialize() as well */
  
    putreg8(getreg8(Z16F_GPIOA_OUT) | 0x07, Z16F_GPIOA_OUT);
    putreg8(getreg8(Z16F_GPIOA_DD) & 0xF8, Z16F_GPIOA_DD);
  }
  
  /****************************************************************************
   * Name: board_autoled_on
   ****************************************************************************/
  
  void board_autoled_on(int led)
  {
    if ((unsigned)led <= 7)
      {
         putreg8(((getreg8(Z16F_GPIOA_OUT) & 0xf8) | led), Z16F_GPIOA_OUT);
      }
  }
  
  /****************************************************************************
   * Name: board_autoled_off
   ****************************************************************************/
  
  void board_autoled_off(int led)
  {
    if (led >= 1)
      {
        board_autoled_on(led-1);
      }
  }
  #endif /* CONFIG_ARCH_LEDS */
  