191865b51c
Fix thread function signatures to avoid stack corruption on thread exit. Signed-off-by: Benedikt Schmidt <benedikt.schmidt@embedded-solutions.at>
137 lines
3.3 KiB
C
137 lines
3.3 KiB
C
/*
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* Copyright (c) 2021 Linumiz
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#define DT_DRV_COMPAT hzgrow_r502a
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#include <zephyr/kernel.h>
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/sensor.h>
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#include <zephyr/drivers/uart.h>
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#include <zephyr/logging/log.h>
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#include <zephyr/drivers/sensor/grow_r502a.h>
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#include "grow_r502a.h"
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LOG_MODULE_DECLARE(GROW_R502A, CONFIG_SENSOR_LOG_LEVEL);
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static void setup_int(const struct device *dev, bool enable)
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{
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const struct grow_r502a_config *cfg = dev->config;
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gpio_flags_t flags =
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enable ? GPIO_INT_EDGE_TO_ACTIVE : GPIO_INT_DISABLE;
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gpio_pin_interrupt_configure_dt(&cfg->int_gpios, flags);
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}
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static void process_int(const struct device *dev)
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{
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struct grow_r502a_data *drv_data = dev->data;
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if (drv_data->th_handler != NULL) {
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drv_data->th_handler(dev, drv_data->th_trigger);
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}
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setup_int(dev, true);
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}
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int grow_r502a_trigger_set(const struct device *dev,
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const struct sensor_trigger *trig,
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sensor_trigger_handler_t handler)
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{
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struct grow_r502a_data *drv_data = dev->data;
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if ((enum sensor_trigger_type_grow_r502a)trig->type == SENSOR_TRIG_TOUCH) {
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drv_data->th_handler = handler;
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drv_data->th_trigger = trig;
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setup_int(dev, true);
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} else {
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LOG_ERR("Unsupported sensor trigger");
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return -ENOTSUP;
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}
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return 0;
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}
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static void grow_r502a_gpio_callback(const struct device *dev,
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struct gpio_callback *cb, uint32_t pins)
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{
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struct grow_r502a_data *drv_data =
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CONTAINER_OF(cb, struct grow_r502a_data, gpio_cb);
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setup_int(drv_data->gpio_dev, false);
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#if defined(CONFIG_GROW_R502A_TRIGGER_OWN_THREAD)
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k_sem_give(&drv_data->gpio_sem);
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#elif defined(CONFIG_GROW_R502A_TRIGGER_GLOBAL_THREAD)
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k_work_submit(&drv_data->work);
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#endif
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}
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#if defined(CONFIG_GROW_R502A_TRIGGER_OWN_THREAD)
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static void grow_r502a_thread(void *p1, void *p2, void *p3)
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{
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ARG_UNUSED(p2);
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ARG_UNUSED(p3);
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struct grow_r502a_data *drv_data = p1;
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while (true) {
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k_sem_take(&drv_data->gpio_sem, K_FOREVER);
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process_int(drv_data->gpio_dev);
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}
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}
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#elif defined(CONFIG_GROW_R502A_TRIGGER_GLOBAL_THREAD)
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static void grow_r502a_work_cb(struct k_work *work)
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{
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struct grow_r502a_data *drv_data =
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CONTAINER_OF(work, struct grow_r502a_data, work);
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process_int(drv_data->gpio_dev);
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}
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#endif
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int grow_r502a_init_interrupt(const struct device *dev)
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{
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struct grow_r502a_data *drv_data = dev->data;
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const struct grow_r502a_config *cfg = dev->config;
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int rc;
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if (!gpio_is_ready_dt(&cfg->int_gpios)) {
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LOG_ERR("GPIO port %s not ready", cfg->int_gpios.port->name);
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return -ENODEV;
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}
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rc = gpio_pin_configure_dt(&cfg->int_gpios, GPIO_INPUT);
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if (rc < 0) {
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return rc;
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}
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drv_data->gpio_dev = dev;
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#if defined(CONFIG_GROW_R502A_TRIGGER_OWN_THREAD)
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k_sem_init(&drv_data->gpio_sem, 0, K_SEM_MAX_LIMIT);
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k_thread_create(&drv_data->thread, drv_data->thread_stack,
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CONFIG_GROW_R502A_THREAD_STACK_SIZE,
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grow_r502a_thread, drv_data, NULL,
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NULL, K_PRIO_COOP(CONFIG_GROW_R502A_THREAD_PRIORITY), 0,
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K_NO_WAIT);
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#elif defined(CONFIG_GROW_R502A_TRIGGER_GLOBAL_THREAD)
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drv_data->work.handler = grow_r502a_work_cb;
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#endif
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gpio_init_callback(&drv_data->gpio_cb, grow_r502a_gpio_callback,
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BIT(cfg->int_gpios.pin));
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rc = gpio_add_callback(cfg->int_gpios.port, &drv_data->gpio_cb);
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if (rc < 0) {
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LOG_ERR("Could not set gpio callback.");
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return rc;
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}
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return 0;
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}
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