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/****************************************************************************
* configs/c4371evm/src/up_leds.c
*
* Copyright (C) 2007-2009, 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <nuttx/board.h>
#include "up_internal.h"
/****************************************************************************
* Definitions
****************************************************************************/
#define CS2 *(volatile uint32_t*)0xffff2e08
#define LEDS *(volatile uint32_t*)0x01000000
/****************************************************************************
* Private Data
****************************************************************************/
static uint32_t g_ledstate;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Funtions
****************************************************************************/
/****************************************************************************
* Name: board_led_initialize
****************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void board_led_initialize(void)
{
/* Enable access to LEDs */
CS2 = 0x000013db;
/* Turn LED 1-7 off; turn LED 0 on */
g_ledstate = 0x000000fe;
LEDS = g_ledstate;
}
/****************************************************************************
* Name: board_led_on
****************************************************************************/
void board_led_on(int led)
{
if (led < 8)
{
g_ledstate &= ~(1 << led);
LEDS = g_ledstate;
}
}
/****************************************************************************
* Name: board_led_off
****************************************************************************/
void board_led_off(int led)
{
if (led < 8)
{
g_ledstate |= (1 << led);
LEDS = g_ledstate;
}
}
#endif /* CONFIG_ARCH_LEDS */
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