170 lines
5.8 KiB
C
170 lines
5.8 KiB
C
/****************************************************************************
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* configs/freedom-kl26z/src/kl_led.c
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*
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* Copyright (C) 2015 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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/* The Freedom KL26Z has a single RGB LED driven by the KL26Z as follows:
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*
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* ------------- --------
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* RGB LED KL26Z128
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* ------------- --------
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* Red Cathode PTE29
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* Green Cathode PTE31
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* Blue Cathode PTD5
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*
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* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board the
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* Freedom KL26Z. The following definitions describe how NuttX controls the LEDs:
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*
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* SYMBOL Meaning LED state
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* Initially all LED is OFF
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* ------------------- ----------------------- --------------------------
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* LED_STARTED NuttX has been started R=OFF G=OFF B=OFF
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* LED_HEAPALLOCATE Heap has been allocated (no change)
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* LED_IRQSENABLED Interrupts enabled (no change)
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* LED_STACKCREATED Idle stack created R=OFF G=OFF B=ON
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* LED_INIRQ In an interrupt (no change)
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* LED_SIGNAL In a signal handler (no change)
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* LED_ASSERTION An assertion failed (no change)
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* LED_PANIC The system has crashed R=FLASHING G=OFF B=OFF
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* LED_IDLE K26Z1XX is in sleep mode (Optional, not used)
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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 <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include <arch/board/board.h>
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#include "chip.h"
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#include "kl_gpio.h"
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#include "freedom-kl26z.h"
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#ifdef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* CONFIG_DEBUG_LEDS enables debug output from this file (needs CONFIG_DEBUG
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* with CONFIG_DEBUG_VERBOSE too)
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*/
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#ifdef CONFIG_DEBUG_LEDS
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# define leddbg lldbg
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# ifdef CONFIG_DEBUG_VERBOSE
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# define ledvdbg lldbg
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# else
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# define ledvdbg(x...)
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# endif
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#else
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# define leddbg(x...)
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# define ledvdbg(x...)
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#endif
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/* Dump GPIO registers */
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#if defined(CONFIG_DEBUG_VERBOSE) && defined(CONFIG_DEBUG_LEDS)
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# define led_dumpgpio(m) kl_dumpgpio(GPIO_LED_B, m)
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#else
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# define led_dumpgpio(m)
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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 Functions
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****************************************************************************/
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/****************************************************************************
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* Name: kl_led_initialize
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*
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* Description:
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* Initialize the on-board LED
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*
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****************************************************************************/
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void kl_led_initialize(void)
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{
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kl_configgpio(GPIO_LED_R);
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kl_configgpio(GPIO_LED_G);
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kl_configgpio(GPIO_LED_B);
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}
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/****************************************************************************
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* Name: board_autoled_on
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****************************************************************************/
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void board_autoled_on(int led)
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{
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if (led == LED_STACKCREATED)
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{
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kl_gpiowrite(GPIO_LED_R, true);
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kl_gpiowrite(GPIO_LED_G, true);
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kl_gpiowrite(GPIO_LED_B, false);
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}
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else if (led == LED_PANIC)
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{
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kl_gpiowrite(GPIO_LED_R, false);
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kl_gpiowrite(GPIO_LED_G, true);
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kl_gpiowrite(GPIO_LED_B, true);
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}
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}
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/****************************************************************************
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* Name: board_autoled_off
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****************************************************************************/
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void board_autoled_off(int led)
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{
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if (led == LED_PANIC)
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{
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kl_gpiowrite(GPIO_LED_R, true);
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kl_gpiowrite(GPIO_LED_G, true);
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kl_gpiowrite(GPIO_LED_B, true);
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}
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}
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#endif /* CONFIG_ARCH_LEDS */
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