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nuttx/configs/stm32butterfly2/src/stm32_leds.c

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/*****************************************************************************
* configs/stm32butterfly2/src/stm32_leds.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 <arch/board/board.h>
#include <nuttx/board.h>
#include <nuttx/config.h>
#include <stdbool.h>
#include <stdint.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
****************************************************************************/
/*****************************************************************************
* Name: led_state
*
* Description:
* Sets pack of leds to given state
****************************************************************************/
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
****************************************************************************/
/*****************************************************************************
* Name: stm32_led_initialize
*
* Description:
* Initializes low level gpio pins for board LEDS
****************************************************************************/
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
/*****************************************************************************
* Name: board_autoled_on
*
* Description:
* Drives board leds when specific RTOS state led occurs.
*
* Input Parameters:
* led - This is actually an RTOS state not led number of anything like that
****************************************************************************/
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;
}
}
/*****************************************************************************
* Name: board_autoled_off
*
* Description:
* Drives board leds when specific RTOS state led ends
*
* Input Parameters:
* led - This is actually an RTOS state not led number of anything like that
****************************************************************************/
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
/*****************************************************************************
* Name: board_userled_initialize
*
* Description:
* This function should initialize leds for user use, but on RTOS start we
* initialize every led for use by RTOS and at end, when RTOS is fully
* booted up, we give control of these specific leds for user. So that's why
* this function is empty.
****************************************************************************/
void board_userled_initialize(void)
{
/* Already initialized by stm32_led_initialize. */
}
/*****************************************************************************
* Name: board_userled
*
* Description:
* Sets led to ledon state.
*
* Input Parameters:
* led - Led to be set, indexed from 0
* ledon - new state for the led.
****************************************************************************/
void board_userled(int led, bool ledon)
{
unsigned int ledbit;
#ifndef CONFIG_ARCH_LEDS
if (led == BOARD_LED4)
{
return;
}
#endif
ledbit = 1 << led;
led_state(ledon, ledbit);
}
/*****************************************************************************
* Name: board_userled_all
*
* Description:
* Sets whole ledset to given state.
*
* Input Parameters:
* ledset - Led bits to be set on or off
****************************************************************************/
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
}
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