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/* * Copyright (c) 2017 Intel Corporation * Copyright (c) 2018 Phytec Messtechnik GmbH * * SPDX-License-Identifier: Apache-2.0 */ #include <zephyr.h> #include <drivers/sensor.h> #include <device.h> #include <stdio.h> #include <sys/printk.h> #ifdef CONFIG_APDS9960_TRIGGER K_SEM_DEFINE(sem, 0, 1); static void trigger_handler(struct device *dev, struct sensor_trigger *trigger) { ARG_UNUSED(dev); ARG_UNUSED(trigger); k_sem_give(&sem); } #endif void main(void) { struct device *dev; struct sensor_value intensity, pdata; printk("APDS9960 sample application\n"); dev = device_get_binding(DT_INST_0_AVAGO_APDS9960_LABEL); if (!dev) { printk("sensor: device not found.\n"); return; } #ifdef CONFIG_APDS9960_TRIGGER struct sensor_value attr = { .val1 = 127, .val2 = 0, }; if (sensor_attr_set(dev, SENSOR_CHAN_PROX, SENSOR_ATTR_UPPER_THRESH, &attr)) { printk("Could not set threshold\n"); return; } struct sensor_trigger trig = { .type = SENSOR_TRIG_THRESHOLD, .chan = SENSOR_CHAN_PROX, }; if (sensor_trigger_set(dev, &trig, trigger_handler)) { printk("Could not set trigger\n"); return; } #endif while (true) { #ifdef CONFIG_APDS9960_TRIGGER printk("Waiting for a threshold event\n"); k_sem_take(&sem, K_FOREVER); #else k_sleep(K_MSEC(5000)); #endif if (sensor_sample_fetch(dev)) { printk("sensor_sample fetch failed\n"); } sensor_channel_get(dev, SENSOR_CHAN_LIGHT, &intensity); sensor_channel_get(dev, SENSOR_CHAN_PROX, &pdata); printk("ambient light intensity %d, proximity %d\n", intensity.val1, pdata.val1); #ifdef CONFIG_DEVICE_POWER_MANAGEMENT u32_t p_state; p_state = DEVICE_PM_LOW_POWER_STATE; device_set_power_state(dev, p_state, NULL, NULL); printk("set low power state for 2s\n"); k_sleep(K_MSEC(2000)); p_state = DEVICE_PM_ACTIVE_STATE; device_set_power_state(dev, p_state, NULL, NULL); #endif } } |