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