bac1f17cf6
u8_t → uint8_t u16_t → uint16_t u32_t → uint32_t u64_t → uint64_t s8_t → int8_t s16_t → int16_t s32_t → int32_t s64_t → int64_t Prerequisite for #223 See: https://github.com/zephyrproject-rtos/zephyr/releases/tag/zephyr-v2.4.0 PR: #467
81 lines
4.1 KiB
C
81 lines
4.1 KiB
C
/*
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* Copyright (c) 2020 The ZMK Contributors
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <stddef.h>
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#include <kernel.h>
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#include <zephyr/types.h>
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struct zmk_event_type {
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const char *name;
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};
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struct zmk_event_header {
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const struct zmk_event_type *event;
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uint8_t last_listener_index;
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};
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#define ZMK_EV_EVENT_HANDLED 1
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#define ZMK_EV_EVENT_CAPTURED 2
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typedef int (*zmk_listener_callback_t)(const struct zmk_event_header *eh);
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struct zmk_listener {
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zmk_listener_callback_t callback;
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};
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struct zmk_event_subscription {
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const struct zmk_event_type *event_type;
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const struct zmk_listener *listener;
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};
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#define ZMK_EVENT_DECLARE(event_type) \
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struct event_type *new_##event_type(); \
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bool is_##event_type(const struct zmk_event_header *eh); \
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struct event_type *cast_##event_type(const struct zmk_event_header *eh); \
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extern const struct zmk_event_type zmk_event_##event_type;
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#define ZMK_EVENT_IMPL(event_type) \
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const struct zmk_event_type zmk_event_##event_type = {.name = STRINGIFY(event_type)}; \
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const struct zmk_event_type *zmk_event_ref_##event_type __used \
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__attribute__((__section__(".event_type"))) = &zmk_event_##event_type; \
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struct event_type *new_##event_type() { \
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struct event_type *ev = (struct event_type *)k_malloc(sizeof(struct event_type)); \
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ev->header.event = &zmk_event_##event_type; \
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return ev; \
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}; \
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bool is_##event_type(const struct zmk_event_header *eh) { \
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return eh->event == &zmk_event_##event_type; \
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}; \
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struct event_type *cast_##event_type(const struct zmk_event_header *eh) { \
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return (struct event_type *)eh; \
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};
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#define ZMK_LISTENER(mod, cb) const struct zmk_listener zmk_listener_##mod = {.callback = cb};
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#define ZMK_SUBSCRIPTION(mod, ev_type) \
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const Z_DECL_ALIGN(struct zmk_event_subscription) \
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_CONCAT(_CONCAT(zmk_event_sub_, mod), ev_type) __used \
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__attribute__((__section__(".event_subscription"))) = { \
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.event_type = &zmk_event_##ev_type, \
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.listener = &zmk_listener_##mod, \
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};
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#define ZMK_EVENT_RAISE(ev) zmk_event_manager_raise((struct zmk_event_header *)ev);
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#define ZMK_EVENT_RAISE_AFTER(ev, mod) \
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zmk_event_manager_raise_after((struct zmk_event_header *)ev, &zmk_listener_##mod);
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#define ZMK_EVENT_RAISE_AT(ev, mod) \
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zmk_event_manager_raise_at((struct zmk_event_header *)ev, &zmk_listener_##mod);
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#define ZMK_EVENT_RELEASE(ev) zmk_event_manager_release((struct zmk_event_header *)ev);
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int zmk_event_manager_raise(struct zmk_event_header *event);
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int zmk_event_manager_raise_after(struct zmk_event_header *event,
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const struct zmk_listener *listener);
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int zmk_event_manager_raise_at(struct zmk_event_header *event, const struct zmk_listener *listener);
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int zmk_event_manager_release(struct zmk_event_header *event);
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