blob: 7c6815a02385c31ab3b1024eb7b6b6a325da3462 [file] [log] [blame] [edit]
/*
* Copyright (c) 2019 Intel Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file Header with definitions for eSPI drivers callback functions
*/
#ifndef ZEPHYR_DRIVERS_ESPI_UTILS_H_
#define ZEPHYR_DRIVERS_ESPI_UTILS_H_
/**
* @brief Generic function to insert or remove a callback from a callback list.
*
* @param callbacks A pointer to the original list of callbacks (can be NULL).
* @param callback A pointer of the callback to insert or remove from the list.
* @param set A boolean indicating insertion or removal of the callback.
*
* @return 0 on success, negative errno otherwise.
*/
static inline int espi_manage_callback(sys_slist_t *callbacks,
struct espi_callback *callback, bool set)
{
__ASSERT(callback, "No callback!");
__ASSERT(callback->handler, "No callback handler!");
if (!sys_slist_is_empty(callbacks)) {
if (!sys_slist_find_and_remove(callbacks, &callback->node)) {
if (!set) {
return -EINVAL;
}
}
} else if (!set) {
return -EINVAL;
}
if (set) {
sys_slist_prepend(callbacks, &callback->node);
}
return 0;
}
/**
* @brief Generic function to go through and fire callback from a callback list.
*
* @param list A pointer on the espi callback list.
* @param dev A pointer on the espi driver instance.
* @param pins The details on the event that triggered the callback.
*/
static inline void espi_send_callbacks(sys_slist_t *list,
const struct device *dev,
struct espi_event evt)
{
struct espi_callback *cb, *tmp;
SYS_SLIST_FOR_EACH_CONTAINER_SAFE(list, cb, tmp, node) {
if (cb->evt_type & evt.evt_type) {
__ASSERT(cb->handler, "No callback handler!");
cb->handler(dev, cb, evt);
}
}
}
#endif /* ZEPHYR_DRIVERS_ESPI_UTILS_H_ */