81 lines
4.1 KiB
C
81 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 2020 The ZMK Contributors
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <stddef.h>
|
|
#include <kernel.h>
|
|
#include <zephyr/types.h>
|
|
|
|
struct zmk_event_type {
|
|
const char *name;
|
|
};
|
|
|
|
struct zmk_event_header {
|
|
const struct zmk_event_type *event;
|
|
u8_t last_listener_index;
|
|
};
|
|
|
|
#define ZMK_EV_EVENT_HANDLED 1
|
|
#define ZMK_EV_EVENT_CAPTURED 2
|
|
|
|
typedef int (*zmk_listener_callback_t)(const struct zmk_event_header *eh);
|
|
struct zmk_listener {
|
|
zmk_listener_callback_t callback;
|
|
};
|
|
|
|
struct zmk_event_subscription {
|
|
const struct zmk_event_type *event_type;
|
|
const struct zmk_listener *listener;
|
|
};
|
|
|
|
#define ZMK_EVENT_DECLARE(event_type) \
|
|
struct event_type *new_##event_type(); \
|
|
bool is_##event_type(const struct zmk_event_header *eh); \
|
|
struct event_type *cast_##event_type(const struct zmk_event_header *eh); \
|
|
extern const struct zmk_event_type zmk_event_##event_type;
|
|
|
|
#define ZMK_EVENT_IMPL(event_type) \
|
|
const struct zmk_event_type zmk_event_##event_type = {.name = STRINGIFY(event_type)}; \
|
|
const struct zmk_event_type *zmk_event_ref_##event_type __used \
|
|
__attribute__((__section__(".event_type"))) = &zmk_event_##event_type; \
|
|
struct event_type *new_##event_type() { \
|
|
struct event_type *ev = (struct event_type *)k_malloc(sizeof(struct event_type)); \
|
|
ev->header.event = &zmk_event_##event_type; \
|
|
return ev; \
|
|
}; \
|
|
bool is_##event_type(const struct zmk_event_header *eh) { \
|
|
return eh->event == &zmk_event_##event_type; \
|
|
}; \
|
|
struct event_type *cast_##event_type(const struct zmk_event_header *eh) { \
|
|
return (struct event_type *)eh; \
|
|
};
|
|
|
|
#define ZMK_LISTENER(mod, cb) const struct zmk_listener zmk_listener_##mod = {.callback = cb};
|
|
|
|
#define ZMK_SUBSCRIPTION(mod, ev_type) \
|
|
const Z_DECL_ALIGN(struct zmk_event_subscription) \
|
|
_CONCAT(_CONCAT(zmk_event_sub_, mod), ev_type) __used \
|
|
__attribute__((__section__(".event_subscription"))) = { \
|
|
.event_type = &zmk_event_##ev_type, \
|
|
.listener = &zmk_listener_##mod, \
|
|
};
|
|
|
|
#define ZMK_EVENT_RAISE(ev) zmk_event_manager_raise((struct zmk_event_header *)ev);
|
|
|
|
#define ZMK_EVENT_RAISE_AFTER(ev, mod) \
|
|
zmk_event_manager_raise_after((struct zmk_event_header *)ev, &zmk_listener_##mod);
|
|
|
|
#define ZMK_EVENT_RAISE_AT(ev, mod) \
|
|
zmk_event_manager_raise_at((struct zmk_event_header *)ev, &zmk_listener_##mod);
|
|
|
|
#define ZMK_EVENT_RELEASE(ev) zmk_event_manager_release((struct zmk_event_header *)ev);
|
|
|
|
int zmk_event_manager_raise(struct zmk_event_header *event);
|
|
int zmk_event_manager_raise_after(struct zmk_event_header *event,
|
|
const struct zmk_listener *listener);
|
|
int zmk_event_manager_raise_at(struct zmk_event_header *event, const struct zmk_listener *listener);
|
|
int zmk_event_manager_release(struct zmk_event_header *event);
|