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/*
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#include <zephyr.h>
#include <kernel.h>
#include <power/power.h>
#include <logging/log.h>
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
#include <zmk/usb.h>
#include <zmk/event-manager.h>
#include <zmk/events/position-state-changed.h>
#include <zmk/events/sensor-event.h>
static u32_t power_last_uptime;
#define MAX_IDLE_MS CONFIG_ZMK_IDLE_SLEEP_TIMEOUT
bool is_usb_power_present() {
#ifdef CONFIG_USB
return zmk_usb_is_powered();
#else
return false;
#endif /* CONFIG_USB */
}
enum power_states sys_pm_policy_next_state(s32_t ticks) {
#ifdef CONFIG_SYS_POWER_DEEP_SLEEP_STATES
#ifdef CONFIG_HAS_SYS_POWER_STATE_DEEP_SLEEP_1
s32_t current = k_uptime_get();
if (power_last_uptime > 0 && !is_usb_power_present() &&
current - power_last_uptime > MAX_IDLE_MS) {
return SYS_POWER_STATE_DEEP_SLEEP_1;
}
#endif /* CONFIG_HAS_SYS_POWER_STATE_DEEP_SLEEP_1 */
#endif /* CONFIG_SYS_POWER_DEEP_SLEEP_STATES */
return SYS_POWER_STATE_ACTIVE;
}
int power_event_listener(const struct zmk_event_header *eh) {
power_last_uptime = k_uptime_get();
return 0;
}
int power_init() {
power_last_uptime = k_uptime_get();
return 0;
}
ZMK_LISTENER(power, power_event_listener);
ZMK_SUBSCRIPTION(power, position_state_changed);
ZMK_SUBSCRIPTION(power, sensor_event);
SYS_INIT(power_init, APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY);
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