nuttx/configs/zkit-arm-1769/src/up_leds.c

/****************************************************************************
 * configs/zkit-arm-1769/src/up_leds.c
 * arch/arm/src/board/up_leds.c
 *
 *   Copyright (C) 2013 Zilogic Systems. All rights reserved.
 *   Author: BabuSubashChandar <code@zilogic.com>
 *
 * Based on configs/lpcxpresso-lpc1768/src/up_leds.c
 *
 *   Copyright (C) 2011 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.
 *
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <nuttx/config.h>

#include <stdbool.h>
#include <debug.h>

#include "up_arch.h"
#include "up_internal.h"

#include "lpc17_gpio.h"
#include "zkitarm_internal.h"

#ifdef CONFIG_ARCH_LEDS

/****************************************************************************
 * Definitions
 ****************************************************************************/

/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
 * and pherhaps CONFIG_DEBUG_VERBOSE too)
 */

#ifdef CONFIG_DEBUG_LEDS
#  define leddbg  lldbg
#  ifdef CONFIG_DEBUG_VERBOSE
#    define ledvdbg lldbg
#  else
#    define ledvdbg(x...)
#  endif
#else
#  define leddbg(x...)
#  define ledvdbg(x...)
#endif

/****************************************************************************
 * Private Data
 ****************************************************************************/

static bool g_ncstate;

/****************************************************************************
 * Private Functions
 ****************************************************************************/

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: up_ledinit
 ****************************************************************************/

void up_ledinit(void)
{
  /* Configure all LED GPIO lines */

  lpc17_configgpio(ZKITARM_LED1);
  lpc17_configgpio(ZKITARM_LED2);
  g_ncstate = true;
}

/****************************************************************************
 * Name: up_ledon
 ****************************************************************************/

void up_ledon(int led)
{
  bool off;

  switch (led)
    {
    case 0:
    case 2:
      off = true;
      break;

    case 1:
      off   = false;
      g_ncstate = false;
      break;

    default:
      return;
    }

  lpc17_gpiowrite(ZKITARM_LED1, off);
  lpc17_gpiowrite(ZKITARM_LED2, off);
}

/****************************************************************************
 * Name: up_ledoff
 ****************************************************************************/

void up_ledoff(int led)
{
  bool off;

  switch (led)
    {
    case 0:
    case 1:
      off = false;
      break;

    case 2:
      off = g_ncstate;
      break;

    default:
      return;
    }

  lpc17_gpiowrite(ZKITARM_LED1, off);
  lpc17_gpiowrite(ZKITARM_LED2, off);
}

#endif /* CONFIG_ARCH_LEDS */