68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/*
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* Copyright (c) 2022 The ZMK Contributors
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/logging/log.h>
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#include <zmk/ble.h>
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#include <zmk/endpoints.h>
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#include <zmk/hid_indicators.h>
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#include <zmk/events/hid_indicators_changed.h>
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#include <zmk/events/endpoint_changed.h>
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#include <zmk/split/bluetooth/central.h>
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LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
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static zmk_hid_indicators_t hid_indicators[ZMK_ENDPOINT_COUNT];
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zmk_hid_indicators_t zmk_hid_indicators_get_current_profile(void) {
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return zmk_hid_indicators_get_profile(zmk_endpoints_selected());
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}
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zmk_hid_indicators_t zmk_hid_indicators_get_profile(struct zmk_endpoint_instance endpoint) {
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const int profile = zmk_endpoint_instance_to_index(endpoint);
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return hid_indicators[profile];
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}
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static void raise_led_changed_event(struct k_work *_work) {
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const zmk_hid_indicators_t indicators = zmk_hid_indicators_get_current_profile();
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raise_zmk_hid_indicators_changed((struct zmk_hid_indicators_changed){.indicators = indicators});
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#if IS_ENABLED(CONFIG_ZMK_SPLIT_PERIPHERAL_HID_INDICATORS) && IS_ENABLED(CONFIG_ZMK_SPLIT_BLE)
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zmk_split_bt_update_hid_indicator(indicators);
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#endif
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}
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static K_WORK_DEFINE(led_changed_work, raise_led_changed_event);
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void zmk_hid_indicators_set_profile(zmk_hid_indicators_t indicators,
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struct zmk_endpoint_instance endpoint) {
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int profile = zmk_endpoint_instance_to_index(endpoint);
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// This write is not happening on the main thread. To prevent potential data races, every
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// operation involving hid_indicators must be atomic. Currently, each function either reads
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// or writes only one entry at a time, so it is safe to do these operations without a lock.
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hid_indicators[profile] = indicators;
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k_work_submit(&led_changed_work);
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}
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void zmk_hid_indicators_process_report(struct zmk_hid_led_report_body *report,
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struct zmk_endpoint_instance endpoint) {
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const zmk_hid_indicators_t indicators = (zmk_hid_indicators_t)report->leds;
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zmk_hid_indicators_set_profile(indicators, endpoint);
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LOG_DBG("Update HID indicators: endpoint=%d, indicators=%x", endpoint.transport, indicators);
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}
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static int profile_listener(const zmk_event_t *eh) {
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raise_led_changed_event(NULL);
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return 0;
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}
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ZMK_LISTENER(profile_listener, profile_listener);
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ZMK_SUBSCRIPTION(profile_listener, zmk_endpoint_changed);
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