116 lines
4.3 KiB
C
116 lines
4.3 KiB
C
/****************************************************************************
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* configs/mcu123-lpc214x/src/up_leds.c
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*
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* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include "chip.h"
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#include "up_arch.h"
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#include "up_internal.h"
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* P1.16-P1.23 control LEDS 1-8 */
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#define LEDBIT(led) (0x00010000 << (led))
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#define ALLLEDS (0x00ff0000)
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#ifdef CONFIG_LPC214x_FIO
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# define putled(v,r) putreg32((v),(LPC214X_FIO1_BASE+(r)))
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# define CLRLEDS putled(ALLLEDS,LPC214X_FIO_SET_OFFSET)
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# define LED_SET_OFFSET LPC214X_FIO_SET_OFFSET
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# define LED_CLR_OFFSET LPC214X_FIO_CLR_OFFSET
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# define LED_DIR_OFFSET LPC214X_FIO_DIR_OFFSET
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#else
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# define putled(v,r) putreg32((v),(LPC214X_GPIO1_BASE+(r)))
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# define CLRLEDS putled(ALLLEDS,LPC214X_GPIO_SET_OFFSET)
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# define LED_SET_OFFSET LPC214X_GPIO_SET_OFFSET
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# define LED_CLR_OFFSET LPC214X_GPIO_CLR_OFFSET
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# define LED_DIR_OFFSET LPC214X_GPIO_DIR_OFFSET
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Funtions
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****************************************************************************/
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/****************************************************************************
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* Name: board_led_initialize
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****************************************************************************/
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#ifdef CONFIG_ARCH_LEDS
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void board_led_initialize(void)
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{
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/* Initilize GIOs P1.16-P1.23 */
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putled(ALLLEDS,LED_DIR_OFFSET);
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putled(ALLLEDS,LED_SET_OFFSET);
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putled(LEDBIT(0),LED_CLR_OFFSET);
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}
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/****************************************************************************
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* Name: board_led_on
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****************************************************************************/
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void board_led_on(int led)
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{
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putled(LEDBIT(led),LED_CLR_OFFSET);
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}
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/****************************************************************************
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* Name: board_led_off
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****************************************************************************/
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void board_led_off(int led)
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{
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putled(LEDBIT(led),LED_SET_OFFSET);
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}
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#endif /* CONFIG_ARCH_LEDS */
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