nuttx/configs/stm32butterfly2/src/stm32_leds.c

/*******************************************************************************
 * configs/stm32butterfly2/src/led.c
 *
 *   Copyright (C) 2016 Michał Łyszczek. All rights reserved.
 *   Author: Michał Łyszczek <michal.lyszczek@gmail.com>
 *
 * 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 <stdbool.h>

#include <nuttx/board.h>
#include <arch/board/board.h>
#include <debug.h>

#include "stm32_gpio.h"

/*******************************************************************************
 * Pre-processor definitions
 ******************************************************************************/

#define GPIO_LED1       (GPIO_OUTPUT | GPIO_CNF_OUTPP | GPIO_MODE_50MHz |\
                         GPIO_OUTPUT_SET | GPIO_PORTB | GPIO_PIN0)
#define GPIO_LED2       (GPIO_OUTPUT | GPIO_CNF_OUTPP | GPIO_MODE_50MHz |\
                         GPIO_OUTPUT_SET | GPIO_PORTB | GPIO_PIN1)
#define GPIO_LED3       (GPIO_OUTPUT | GPIO_CNF_OUTPP | GPIO_MODE_50MHz |\
                         GPIO_OUTPUT_SET | GPIO_PORTC | GPIO_PIN4)
#define GPIO_LED4       (GPIO_OUTPUT | GPIO_CNF_OUTPP | GPIO_MODE_50MHz |\
                         GPIO_OUTPUT_SET | GPIO_PORTC | GPIO_PIN5)

/*******************************************************************************
 * Private Types
 ******************************************************************************/

/* Identifies led state */
enum led_state
{
  LED_ON = false,
  LED_OFF = true
};

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

static void led_state(enum led_state state, unsigned int leds)
{
  if (leds & BOARD_LED1_BIT)
    {
      stm32_gpiowrite(GPIO_LED1, state);
    }

  if (leds & BOARD_LED2_BIT)
    {
      stm32_gpiowrite(GPIO_LED2, state);
    }
  
  if (leds & BOARD_LED3_BIT)
    {
      stm32_gpiowrite(GPIO_LED3, state);
    }

  if (leds & BOARD_LED4_BIT)
    {
      stm32_gpiowrite(GPIO_LED4, state);
    }
}

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

void stm32_led_initialize(void)
{
  stm32_configgpio(GPIO_LED1);
  stm32_configgpio(GPIO_LED2);
  stm32_configgpio(GPIO_LED3);
  stm32_configgpio(GPIO_LED4);
}

#ifdef CONFIG_ARCH_LEDS
void board_autoled_on(int led)
{
  switch (led)
    {
    case LED_STARTED:
      led_state(LED_OFF, BOARD_LED2_BIT | BOARD_LED3_BIT | BOARD_LED4_BIT);
      led_state(LED_ON,  BOARD_LED1_BIT);
      break;

    case LED_HEAPALLOCATE:
      led_state(LED_OFF, BOARD_LED1_BIT | BOARD_LED3_BIT | BOARD_LED4_BIT);
      led_state(LED_ON,  BOARD_LED2_BIT);
      break;

    case LED_IRQSENABLED:
      led_state(LED_OFF, BOARD_LED1_BIT | BOARD_LED2_BIT | BOARD_LED4_BIT);
      led_state(LED_ON,  BOARD_LED3_BIT);
      break;

    case LED_STACKCREATED:
      led_state(LED_OFF, BOARD_LED1_BIT | BOARD_LED2_BIT | BOARD_LED3_BIT);
      led_state(LED_ON,  BOARD_LED4_BIT);
      break;

    case LED_INIRQ:
    case LED_SIGNAL:
    case LED_ASSERTION:
    case LED_PANIC:
      led_state(LED_ON,  BOARD_LED4_BIT);
      break;
    }
}

void board_autoled_off(int led)
{
  switch (led)
    {
    case LED_STARTED:
      led_state(LED_OFF, BOARD_LED1_BIT);
      break;

    case LED_HEAPALLOCATE:
      led_state(LED_OFF, BOARD_LED2_BIT);
      break;

    case LED_IRQSENABLED:
      led_state(LED_OFF, BOARD_LED3_BIT);
      break;

    case LED_STACKCREATED:
    case LED_INIRQ:
    case LED_SIGNAL:
    case LED_ASSERTION:
    case LED_PANIC:
      led_state(LED_OFF,  BOARD_LED4_BIT);
      break;
    }
}
#endif

void board_userled_initialize(void)
{
  /* Already initialized by stm32_led_initialize. */
}

void board_userled(int led, bool ledon)
{
#ifndef CONFIG_ARCH_LEDS
  if (led == BOARD_LED4)
    {
      return;
    }
#endif
  unsigned int ledbit = 1 << led;
  led_state(ledon, ledbit); 
}

void board_userled_all(uint8_t ledset)
{
#ifdef CONFIG_ARCH_LEDS
  led_state(LED_ON, ledset & ~BOARD_LED4_BIT);
  led_state(LED_OFF, ~(ledset | BOARD_LED4_BIT));
#else
  led_state(LED_ON, ledset);
  led_state(led_OFF, ~ledset);
#endif
}