39544299fc
Test that device pm state constraints work as expected. It declares a device in DT that specify that two pm states cause power loss and use this information when the device is in the middle of an action. Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
/*
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* Copyright (c) 2024 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "test_driver.h"
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#include <zephyr/kernel.h>
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#include <zephyr/pm/policy.h>
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#include <zephyr/pm/device.h>
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#include <zephyr/ztest.h>
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struct test_driver_data {
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const struct device *self;
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struct k_timer timer;
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bool ongoing;
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};
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static int test_driver_action(const struct device *dev,
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enum pm_device_action action)
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{
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ARG_UNUSED(dev);
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ARG_UNUSED(action);
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return 0;
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}
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static void timer_expire_cb(struct k_timer *timer)
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{
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struct test_driver_data *data = k_timer_user_data_get(timer);
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data->ongoing = false;
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k_timer_stop(timer);
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pm_policy_device_power_lock_put(data->self);
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}
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void test_driver_async_operation(const struct device *dev)
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{
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struct test_driver_data *data = dev->data;
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data->ongoing = true;
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pm_policy_device_power_lock_get(dev);
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/** Lets set a timer big enough to ensure that any deep
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* sleep state would be suitable but constraints will
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* make only state0 (suspend-to-idle) will be used.
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*/
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k_timer_start(&data->timer, K_MSEC(500), K_NO_WAIT);
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}
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int test_driver_init(const struct device *dev)
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{
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struct test_driver_data *data = dev->data;
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data->self = dev;
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k_timer_init(&data->timer, timer_expire_cb, NULL);
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k_timer_user_data_set(&data->timer, data);
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return 0;
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}
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PM_DEVICE_DT_DEFINE(DT_NODELABEL(test_dev), test_driver_action);
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static struct test_driver_data data;
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DEVICE_DT_DEFINE(DT_NODELABEL(test_dev), test_driver_init,
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PM_DEVICE_DT_GET(DT_NODELABEL(test_dev)), &data, NULL, POST_KERNEL,
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CONFIG_KERNEL_INIT_PRIORITY_DEVICE, NULL);
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