nuttx/boards/arm/nrf52/nrf52-feather/src/nrf52_userleds.c

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/****************************************************************************
* boards/arm/nrf52/nrf52-feather/src/nrf52_userleds.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <arch/board/board.h>
#include "chip.h"
#include "arm_internal.h"
#include "nrf52-feather.h"
#ifndef CONFIG_ARCH_LEDS
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* LED definitions **********************************************************/
/* If CONFIG_ARCH_LEDS is not defined, then the LEDs are completely under
* control of the application. The following interfaces are then available
* for application control of the LEDs:
*
* uint32_t board_userled_initialize(void);
* void board_userled(int led, bool ledon);
* void board_userled_all(uint32_t ledset);
*/
#define LED_ON 1
#define LED_OFF 0
/* This array maps an LED number to GPIO pin configuration */
static const uint32_t g_ledcfg[BOARD_NLEDS] =
{
#if 0 < BOARD_NLEDS
GPIO_LED1,
#endif
#if 1 < BOARD_NLEDS
GPIO_LED2,
#endif
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: led_dumppins
****************************************************************************/
#ifdef LED_VERBOSE
static void led_dumppins(const char *msg)
{
nrf52_pin_dump(PINCONFIG_LED, msg);
nrf52_gpio_dump(GPIO_LED, msg);
}
#else
# define led_dumppins(m)
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_userled_initialize
****************************************************************************/
uint32_t board_userled_initialize(void)
{
int i;
/* Configure LED pin as a GPIO outputs */
led_dumppins("board_userled_initialize() Entry)");
/* Configure GPIO as an outputs */
for (i = 0; i < BOARD_NLEDS; i++)
{
nrf52_gpio_config(g_ledcfg[i]);
}
led_dumppins("board_userled_initialize() Exit");
return BOARD_NLEDS;
}
/****************************************************************************
* Name: board_userled
****************************************************************************/
void board_userled(int led, bool ledon)
{
if ((unsigned)led < BOARD_NLEDS)
{
nrf52_gpio_write(g_ledcfg[led], ledon ? LED_ON : LED_OFF);
}
}
/****************************************************************************
* Name: board_userled_all
****************************************************************************/
void board_userled_all(uint32_t ledset)
{
int i;
/* Configure LED1-8 GPIOs for output */
for (i = 0; i < BOARD_NLEDS; i++)
{
nrf52_gpio_write(g_ledcfg[i], (ledset & (1 << i)) ? LED_ON : LED_OFF);
}
}
#endif /* !CONFIG_ARCH_LEDS */