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cpu/sam0/gpio: integrate pm_layered

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Jue 2022-10-29 13:48:38 +02:00
parent ae9190da30
commit 220be1da7e
1 changed files with 23 additions and 0 deletions
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23
cpu/sam0_common/periph/gpio.c
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@ -2,6 +2,7 @@
* Copyright (C) 2014-2015 Freie Universität Berlin
* 2015 Kaspar Schleiser <kaspar@schleiser.de>
* 2015 FreshTemp, LLC.
* 2022 SSV Software Systems GmbH
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
@ -29,6 +30,7 @@
* @author Thomas Eichinger <thomas.eichinger@fu-berlin.de>
* @author Kaspar Schleiser <kaspar@schleiser.de>
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Juergen Fitschen <me@jue.yt>
*
* The GPIO implementation here support the PERIPH_GPIO_FAST_READ pseudomodule
* on the cortex-m0/m23 based devices. This trades an increase in power
@ -48,6 +50,7 @@
#include "cpu.h"
#include "bitarithm.h"
#include "pm_layered.h"
#include "periph/gpio.h"
#include "periph_conf.h"
@ -365,6 +368,12 @@ int gpio_init_int(gpio_t pin, gpio_mode_t mode, gpio_flank_t flank,
#endif
/* clear interrupt flag and enable the interrupt line and line wakeup */
_EIC->INTFLAG.reg = (1 << exti);
#if IS_ACTIVE(MODULE_PM_LAYERED) && defined(SAM0_GPIO_PM_BLOCK)
/* block pm mode if it hasn't been blocked before */
if (!(_EIC->INTENSET.reg & (1 << exti))) {
pm_block(SAM0_GPIO_PM_BLOCK);
}
#endif
_EIC->INTENSET.reg = (1 << exti);
#ifdef CPU_COMMON_SAMD21
_EIC->WAKEUP.reg |= (1 << exti);
@ -456,6 +465,13 @@ void gpio_irq_enable(gpio_t pin)
/* clear stale interrupt */
_EIC->INTFLAG.reg = 1 << exti;
#if IS_ACTIVE(MODULE_PM_LAYERED) && defined(SAM0_GPIO_PM_BLOCK)
/* unblock power mode */
if (!(_EIC->INTENSET.reg & (1 << exti))) {
pm_block(SAM0_GPIO_PM_BLOCK);
}
#endif
/* enable interrupt */
_EIC->INTENSET.reg = 1 << exti;
@ -470,6 +486,13 @@ void gpio_irq_disable(gpio_t pin)
return;
}
#if IS_ACTIVE(MODULE_PM_LAYERED) && defined(SAM0_GPIO_PM_BLOCK)
/* unblock power mode */
if (_EIC->INTENSET.reg & (1 << exti)) {
pm_unblock(SAM0_GPIO_PM_BLOCK);
}
#endif
/* disable interrupt */
_EIC->INTENCLR.reg = 1 << exti;