zmk_mf68/app/include/zmk/usb.h
Joel Spadin 1d369ffa73 feat: only send HID reports to one endpoint
Added some utility functions and an event for tracking the state of the
USB connection.

Updated endpoints.c to select a single endpoint to send HID reports to
based on the status of the USB and BLE connections. Partially fixes #206.

Future commits will add a user setting to control which endpoint is used if
both USB and BLE are ready.
2020-10-28 18:15:05 -05:00

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/*
* Copyright (c) 2020 The ZMK Contributors
*
* SPDX-License-Identifier: MIT
*/
#pragma once
#include <usb/usb_device.h>
#include <usb/class/usb_hid.h>
#include <zmk/keys.h>
#include <zmk/hid.h>
enum zmk_usb_conn_state {
ZMK_USB_CONN_NONE,
ZMK_USB_CONN_POWERED,
ZMK_USB_CONN_HID,
};
enum usb_dc_status_code zmk_usb_get_status();
enum zmk_usb_conn_state zmk_usb_get_conn_state();
static inline bool zmk_usb_is_powered() { return zmk_usb_get_conn_state() != ZMK_USB_CONN_NONE; }
static inline bool zmk_usb_is_hid_ready() { return zmk_usb_get_conn_state() == ZMK_USB_CONN_HID; }
#ifdef CONFIG_ZMK_USB
int zmk_usb_hid_send_report(const u8_t *report, size_t len);
#endif /* CONFIG_ZMK_USB */