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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
* 2026-03-27 Evlers support builds without DM names and improve logging
*/
#include <rtdevice.h>
#define DBG_TAG "power_supply.daemon"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#ifdef RT_USING_PM
static rt_bool_t low_power_mode = RT_FALSE;
static rt_uint8_t raw_pm_run_mode = PM_RUN_MODE_MAX;
static rt_uint8_t raw_pm_sleep_mode = PM_RUN_MODE_MAX;
static rt_uint8_t last_pm_sleep_mode;
#endif
static rt_err_t daemon_power_supply_notify(struct rt_power_supply_notifier *notifier,
struct rt_power_supply *psy)
{
union rt_power_supply_property_val propval;
rt_uint32_t voltage_now, voltage_min, voltage_max;
if (!rt_power_supply_get_property(psy, RT_POWER_SUPPLY_PROP_CAPACITY, &propval))
{
goto _capacity_check;
}
if (rt_power_supply_get_property(psy, RT_POWER_SUPPLY_PROP_VOLTAGE_NOW, &propval))
{
return -RT_ENOSYS;
}
voltage_now = propval.intval / 1000000;
if (rt_power_supply_get_property(psy, RT_POWER_SUPPLY_PROP_VOLTAGE_MIN, &propval))
{
return -RT_ENOSYS;
}
voltage_min = propval.intval / 1000000;
if (rt_power_supply_get_property(psy, RT_POWER_SUPPLY_PROP_VOLTAGE_MAX, &propval))
{
return -RT_ENOSYS;
}
voltage_max = propval.intval / 1000000;
propval.intval = (voltage_now - voltage_min) * 100 / (voltage_max - voltage_min);
_capacity_check:
if (propval.intval >= 80)
{
rt_bool_t full_power = propval.intval == 100;
if (rt_power_supply_get_property(psy, RT_POWER_SUPPLY_PROP_STATUS, &propval))
{
return -RT_ENOSYS;
}
if (propval.intval == RT_POWER_SUPPLY_STATUS_CHARGING)
{
if (full_power)
{
LOG_I("%s: Power is full", rt_power_supply_name(psy));
}
else
{
LOG_I("%s: Power is sufficient", rt_power_supply_name(psy));
}
}
}
else if (propval.intval <= 20)
{
#ifdef RT_USING_PM
rt_uint8_t pm_sleep_mode;
struct rt_pm *pm = rt_pm_get_handle();
RT_ASSERT(pm != RT_NULL);
low_power_mode = RT_TRUE;
if (raw_pm_run_mode == PM_RUN_MODE_MAX)
{
raw_pm_run_mode = pm->run_mode;
}
if (raw_pm_sleep_mode == PM_SLEEP_MODE_MAX)
{
last_pm_sleep_mode = raw_pm_sleep_mode = pm->sleep_mode;
}
pm_sleep_mode = pm->sleep_mode;
#endif /* RT_USING_PM */
if (propval.intval <= 5)
{
do {
#ifdef RT_USING_PM
if (pm_sleep_mode != PM_SLEEP_MODE_SHUTDOWN && propval.intval > 1)
{
pm_sleep_mode = PM_SLEEP_MODE_SHUTDOWN;
break;
}
#endif
if (!rt_power_supply_get_property(psy, RT_POWER_SUPPLY_PROP_SCOPE, &propval) &&
propval.intval == RT_POWER_SUPPLY_SCOPE_SYSTEM)
{
LOG_E("%s: Power is critical, poweroff now", rt_power_supply_name(psy));
rt_hw_cpu_shutdown();
}
} while (0);
LOG_E("%s: Power is critical", rt_power_supply_name(psy));
}
else if (propval.intval <= 10)
{
#ifdef RT_USING_PM
pm_sleep_mode = PM_SLEEP_MODE_STANDBY;
rt_pm_run_enter(PM_RUN_MODE_LOW_SPEED);
#endif
}
else if (propval.intval <= 15)
{
#ifdef RT_USING_PM
pm_sleep_mode = PM_SLEEP_MODE_DEEP;
rt_pm_run_enter(PM_RUN_MODE_MEDIUM_SPEED);
#endif
}
else if (propval.intval <= 20)
{
#ifdef RT_USING_PM
pm_sleep_mode = PM_SLEEP_MODE_LIGHT;
rt_pm_run_enter(PM_RUN_MODE_NORMAL_SPEED);
#endif
LOG_W("%s: Power is low", rt_power_supply_name(psy));
}
#ifdef RT_USING_PM
if (pm_sleep_mode != last_pm_sleep_mode)
{
rt_pm_release(last_pm_sleep_mode);
rt_pm_request(pm_sleep_mode);
last_pm_sleep_mode = pm_sleep_mode;
}
#endif /* RT_USING_PM */
}
else
{
#ifdef RT_USING_PM
if (low_power_mode)
{
rt_pm_release(last_pm_sleep_mode);
rt_pm_request(raw_pm_sleep_mode);
rt_pm_run_enter(raw_pm_run_mode);
low_power_mode = RT_FALSE;
}
#endif /* RT_USING_PM */
}
return RT_EOK;
}
static int power_supply_daemon_init(void)
{
static struct rt_power_supply_notifier daemon_notifier;
daemon_notifier.callback = daemon_power_supply_notify;
rt_power_supply_notifier_register(&daemon_notifier);
return 0;
}
INIT_ENV_EXPORT(power_supply_daemon_init);
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