220 lines
6.4 KiB
C
220 lines
6.4 KiB
C
/****************************************************************************
|
|
* boards/arm/samd5e5/metro-m4/src/sam_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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/* The Adafruit Metro M4 has four LEDs, but only two are controllable by
|
|
* software:
|
|
*
|
|
* 1. The red LED on the Arduino D13 pin, and
|
|
* 2. A NeoPixel RGB LED.
|
|
*
|
|
* Currently, only the red LED is supported.
|
|
*
|
|
* ------ ----------------- -----------
|
|
* SHIELD SAMD5E5 FUNCTION
|
|
* ------ ----------------- -----------
|
|
* D13 PA16 GPIO output
|
|
*/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <assert.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/board.h>
|
|
#include <nuttx/power/pm.h>
|
|
|
|
#include "arm_arch.h"
|
|
#include "sam_port.h"
|
|
|
|
#include "metro-m4.h"
|
|
|
|
#include <arch/board/board.h>
|
|
|
|
#ifndef CONFIG_ARCH_LEDS
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/* LED Power Management */
|
|
|
|
#ifdef CONFIG_PM
|
|
static void led_pm_notify(struct pm_callback_s *cb, int domain,
|
|
enum pm_state_e pmstate);
|
|
static int led_pm_prepare(struct pm_callback_s *cb, int domain,
|
|
enum pm_state_e pmstate);
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_PM
|
|
static struct pm_callback_s g_ledscb =
|
|
{
|
|
.notify = led_pm_notify,
|
|
.prepare = led_pm_prepare,
|
|
};
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: led_pm_notify
|
|
*
|
|
* Description:
|
|
* Notify the driver of new power state. This callback is called after
|
|
* all drivers have had the opportunity to prepare for the new power state.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_PM
|
|
static void led_pm_notify(struct pm_callback_s *cb, int domain,
|
|
enum pm_state_e pmstate)
|
|
{
|
|
switch (pmstate)
|
|
{
|
|
case(PM_NORMAL):
|
|
{
|
|
/* Restore normal LEDs operation */
|
|
}
|
|
break;
|
|
|
|
case(PM_IDLE):
|
|
{
|
|
/* Entering IDLE mode - Turn leds off */
|
|
}
|
|
break;
|
|
|
|
case(PM_STANDBY):
|
|
{
|
|
/* Entering STANDBY mode - Logic for PM_STANDBY goes here */
|
|
}
|
|
break;
|
|
|
|
case(PM_SLEEP):
|
|
{
|
|
/* Entering SLEEP mode - Logic for PM_SLEEP goes here */
|
|
}
|
|
break;
|
|
|
|
default:
|
|
{
|
|
/* Should not get here */
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: led_pm_prepare
|
|
*
|
|
* Description:
|
|
* Request the driver to prepare for a new power state. This is a warning
|
|
* that the system is about to enter into a new power state. The driver
|
|
* should begin whatever operations that may be required to enter power
|
|
* state. The driver may abort the state change mode by returning a
|
|
* non-zero value from the callback function.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_PM
|
|
static int led_pm_prepare(struct pm_callback_s *cb, int domain,
|
|
enum pm_state_e pmstate)
|
|
{
|
|
/* No preparation to change power modes is required by the LEDs driver.
|
|
* We always accept the state change by returning OK.
|
|
*/
|
|
|
|
return OK;
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: board_userled_initialize
|
|
****************************************************************************/
|
|
|
|
uint32_t board_userled_initialize(void)
|
|
{
|
|
sam_portconfig(PORT_STATUS_LED);
|
|
return BOARD_NLEDS;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: board_userled
|
|
****************************************************************************/
|
|
|
|
void board_userled(int led, bool ledon)
|
|
{
|
|
if (led == BOARD_STATUS_LED)
|
|
{
|
|
sam_portwrite(PORT_STATUS_LED, !ledon);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: board_userled_all
|
|
****************************************************************************/
|
|
|
|
void board_userled_all(uint32_t ledset)
|
|
{
|
|
board_userled(BOARD_STATUS_LED, (ledset & BOARD_STATUS_LED_BIT) != 0);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: sam_led_pminitialize
|
|
*
|
|
* Description:
|
|
* Register LED power management features.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_PM
|
|
void sam_led_pminitialize(void)
|
|
{
|
|
/* Register to receive power management callbacks */
|
|
|
|
int ret = pm_register(&g_ledscb);
|
|
if (ret != OK)
|
|
{
|
|
board_autoled_on(LED_ASSERTION);
|
|
}
|
|
}
|
|
#endif /* CONFIG_PM */
|
|
|
|
#endif /* !CONFIG_ARCH_LEDS */
|