148 lines
4.9 KiB
C
148 lines
4.9 KiB
C
/****************************************************************************
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* boards/arm/stm32h7/stm32h747i-disco/src/stm32_userleds.c
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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* Authors: 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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.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 "stm32_gpio.h"
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#include "stm32h747i-disco.h"
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#ifndef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define ARRAYSIZE(x) (sizeof((x)) / sizeof((x)[0]))
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* This array maps an LED number to GPIO pin configuration and is indexed by
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* BOARD_LED_<color>
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*/
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static const uint32_t g_ledcfg[BOARD_NLEDS] =
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{
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GPIO_LED_GREEN,
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GPIO_LED_ORANGE,
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GPIO_LED_RED,
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GPIO_LED_BLUE,
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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: board_userled_initialize
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*
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* Description:
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
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* LEDs. If CONFIG_ARCH_LEDS is not defined, then the
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* board_userled_initialize() is available to initialize the LED from user
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* application logic.
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*
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****************************************************************************/
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uint32_t board_userled_initialize(void)
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{
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int i;
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/* Configure LED1-3 GPIOs for output */
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for (i = 0; i < ARRAYSIZE(g_ledcfg); i++)
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{
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stm32_configgpio(g_ledcfg[i]);
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}
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return BOARD_NLEDS;
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}
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/****************************************************************************
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* Name: board_userled
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*
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* Description:
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
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* LEDs. If CONFIG_ARCH_LEDS is not defined, then the board_userled() is
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* available to control the LED from user application logic.
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*
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****************************************************************************/
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void board_userled(int led, bool ledon)
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{
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/* Active Low */
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if ((unsigned)led < ARRAYSIZE(g_ledcfg))
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{
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stm32_gpiowrite(g_ledcfg[led], !ledon);
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}
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}
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/****************************************************************************
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* Name: board_userled_all
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*
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* Description:
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* If CONFIG_ARCH_LEDS is defined, then NuttX will control the on-board
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* LEDs. If CONFIG_ARCH_LEDS is not defined, then the board_userled_all()
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* is available to control the LED from user application logic. NOTE: since
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* there is only a single LED on-board, this is function is not very useful.
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*
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****************************************************************************/
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void board_userled_all(uint32_t ledset)
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{
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/* Active Low */
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int i;
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for (i = 0; i < ARRAYSIZE(g_ledcfg); i++)
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{
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stm32_gpiowrite(g_ledcfg[i], (ledset & (1 << i)) == 0);
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}
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}
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#endif /* !CONFIG_ARCH_LEDS */
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