zmk/app/include/zmk/endpoints.h
Peter Johanson 860e53b33a refactor: Promote new endpoints API
* Add ability for external callers to clear the current endpoint.
2024-03-27 20:59:26 -07:00

77 lines
2.1 KiB
C

/*
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#pragma once
#include <zmk/ble.h>
#include <zmk/endpoints_types.h>
/**
* Recommended length of string buffer for printing endpoint identifiers.
*/
#define ZMK_ENDPOINT_STR_LEN 10
#ifdef CONFIG_ZMK_USB
#define ZMK_ENDPOINT_USB_COUNT 1
#else
#define ZMK_ENDPOINT_USB_COUNT 0
#endif
#ifdef CONFIG_ZMK_BLE
#define ZMK_ENDPOINT_BLE_COUNT ZMK_BLE_PROFILE_COUNT
#else
#define ZMK_ENDPOINT_BLE_COUNT 0
#endif
/**
* The total number of different (struct zmk_endpoint_instance) values that can
* be selected.
*
* Note that this value may change between firmware versions, so it should not
* be used in any persistent storage.
*/
#define ZMK_ENDPOINT_COUNT (ZMK_ENDPOINT_USB_COUNT + ZMK_ENDPOINT_BLE_COUNT)
bool zmk_endpoint_instance_eq(struct zmk_endpoint_instance a, struct zmk_endpoint_instance b);
/**
* Writes a string identifying an endpoint instance.
*
* @param str Address of output string buffer
* @param len Length of string buffer. See ZMK_ENDPOINT_STR_LEN for recommended length.
*
* @returns Number of characters written.
*/
int zmk_endpoint_instance_to_str(struct zmk_endpoint_instance endpoint, char *str, size_t len);
/**
* Gets a unique index for an endpoint instance. This can be used together with
* ZMK_ENDPOINT_COUNT to manage separate state for each endpoint instance.
*
* Note that the index for a specific instance may change between firmware versions,
* so it should not be used in any persistent storage.
*/
int zmk_endpoint_instance_to_index(struct zmk_endpoint_instance endpoint);
/**
* Sets the preferred endpoint transport to use. (If the preferred endpoint is
* not available, a different one may automatically be selected.)
*/
int zmk_endpoints_select_transport(enum zmk_transport transport);
int zmk_endpoints_toggle_transport(void);
/**
* Gets the currently-selected endpoint.
*/
struct zmk_endpoint_instance zmk_endpoints_selected(void);
int zmk_endpoints_send_report(uint16_t usage_page);
#if IS_ENABLED(CONFIG_ZMK_MOUSE)
int zmk_endpoints_send_mouse_report();
#endif // IS_ENABLE(CONFIG_ZMK_MOUSE)
void zmk_endpoints_clear_current(void);