1ad3a22ad5
Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
196 lines
5.8 KiB
C
196 lines
5.8 KiB
C
/****************************************************************************
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* boards/arm/stm32l4/nucleo-l476rg/src/stm32_userleds.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <arch/board/board.h>
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#include <nuttx/power/pm.h>
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#include "chip.h"
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#include "arm_arch.h"
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#include "arm_internal.h"
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#include "stm32l4.h"
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#include "nucleo-l476rg.h"
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#ifndef CONFIG_ARCH_LEDS
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/* LED Power Management */
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#ifdef CONFIG_PM
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static void led_pm_notify(struct pm_callback_s *cb, int domain,
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enum pm_state_e pmstate);
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static int led_pm_prepare(struct pm_callback_s *cb, int domain,
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enum pm_state_e pmstate);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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#ifdef CONFIG_PM
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static struct pm_callback_s g_ledscb =
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{
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.notify = led_pm_notify,
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.prepare = led_pm_prepare,
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};
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: led_pm_notify
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*
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* Description:
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* Notify the driver of new power state. This callback is called after
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* all drivers have had the opportunity to prepare for the new power state.
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*
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****************************************************************************/
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#ifdef CONFIG_PM
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static void led_pm_notify(struct pm_callback_s *cb, int domain,
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enum pm_state_e pmstate)
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{
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switch (pmstate)
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{
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case(PM_NORMAL):
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{
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/* Restore normal LEDs operation */
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}
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break;
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case(PM_IDLE):
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{
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/* Entering IDLE mode - Turn leds off */
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}
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break;
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case(PM_STANDBY):
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{
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/* Entering STANDBY mode - Logic for PM_STANDBY goes here */
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}
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break;
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case(PM_SLEEP):
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{
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/* Entering SLEEP mode - Logic for PM_SLEEP goes here */
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}
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break;
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default:
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{
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/* Should not get here */
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}
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break;
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}
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}
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#endif
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/****************************************************************************
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* Name: led_pm_prepare
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*
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* Description:
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* Request the driver to prepare for a new power state. This is a warning
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* that the system is about to enter into a new power state. The driver
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* should begin whatever operations that may be required to enter power
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* state. The driver may abort the state change mode by returning a
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* non-zero value from the callback function.
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*
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****************************************************************************/
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#ifdef CONFIG_PM
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static int led_pm_prepare(struct pm_callback_s *cb, int domain,
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enum pm_state_e pmstate)
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{
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/* No preparation to change power modes is required by the LEDs driver.
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* We always accept the state change by returning OK.
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*/
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return OK;
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}
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#endif
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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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uint32_t board_userled_initialize(void)
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{
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/* Configure LD2 GPIO for output */
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stm32l4_configgpio(GPIO_LD2);
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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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void board_userled(int led, bool ledon)
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{
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if (led == BOARD_LD2)
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{
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stm32l4_gpiowrite(GPIO_LD2, 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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void board_userled_all(uint32_t ledset)
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{
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stm32l4_gpiowrite(GPIO_LD2, (ledset & BOARD_LD2_BIT) != 0);
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}
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/****************************************************************************
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* Name: stm32l4_led_pminitialize
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****************************************************************************/
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#ifdef CONFIG_PM
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void stm32l4_led_pminitialize(void)
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{
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/* Register to receive power management callbacks */
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int ret = pm_register(&g_ledscb);
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DEBUGASSERT(ret == OK);
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UNUSED(ret);
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}
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#endif /* CONFIG_PM */
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#endif /* !CONFIG_ARCH_LEDS */
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