/****************************************************************************
* configs/freedom-kl25z/src/kl_led.c
* arch/arm/src/board/kl_led.c
*
* Copyright (C) 2013 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 Freedom KL25Z has a single RGB LED driven by the KL25Z as follows:
*
* ------------- --------
* RGB LED KL25Z128
* ------------- --------
* Red Cathode PTB18
* Green Cathode PTB19
* Blue Cathode PTD1
*
* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the
* Freedom KL25Z. The following definitions describe how NuttX controls the LEDs:
*
* SYMBOL Meaning LED state
* Initially all LED is OFF
* ------------------- ----------------------- --------------------------
* LED_STARTED NuttX has been started R=OFF G=OFF B=OFF
* LED_HEAPALLOCATE Heap has been allocated (no change)
* LED_IRQSENABLED Interrupts enabled (no change)
* LED_STACKCREATED Idle stack created R=OFF G=OFF B=ON
* LED_INIRQ In an interrupt (no change)
* LED_SIGNAL In a signal handler (no change)
* LED_ASSERTION An assertion failed (no change)
* LED_PANIC The system has crashed R=FLASHING G=OFF B=OFF
* LED_IDLE K25Z1XX is in sleep mode (Optional, not used)
*/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <arch/board/board.h>
#include "chip.h"
#include "kl_gpio.h"
#include "freedom-kl25z.h"
#ifdef CONFIG_ARCH_LEDS
/****************************************************************************
* Definitions
****************************************************************************/
/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
* with 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
/* Dump GPIO registers */
#if defined(CONFIG_DEBUG_VERBOSE) && defined(CONFIG_DEBUG_LEDS)
# define led_dumpgpio(m) kl_dumpgpio(GPIO_LED_B, m)
#else
# define led_dumpgpio(m)
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: kl_ledinit
*
* Description:
* Initialize the on-board LED
*
****************************************************************************/
void kl_ledinit(void)
{
kl_configgpio(GPIO_LED_R);
kl_configgpio(GPIO_LED_G);
kl_configgpio(GPIO_LED_B);
}
/****************************************************************************
* Name: up_ledon
****************************************************************************/
void up_ledon(int led)
{
if (led == LED_STACKCREATED)
{
kl_gpiowrite(GPIO_LED_R, true);
kl_gpiowrite(GPIO_LED_G, true);
kl_gpiowrite(GPIO_LED_B, false);
}
else if (led == LED_PANIC)
{
kl_gpiowrite(GPIO_LED_R, false);
kl_gpiowrite(GPIO_LED_G, true);
kl_gpiowrite(GPIO_LED_B, true);
}
}
/****************************************************************************
* Name: up_ledoff
****************************************************************************/
void up_ledoff(int led)
{
if (led == LED_PANIC)
{
kl_gpiowrite(GPIO_LED_R, true);
kl_gpiowrite(GPIO_LED_G, true);
kl_gpiowrite(GPIO_LED_B, true);
}
}
#endif /* CONFIG_ARCH_LEDS */
