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86 lines
2.3 KiB
86 lines
2.3 KiB
// Copyright 2021-2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdint.h>
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#include "caps_word.h"
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#include "timer.h"
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#include "action.h"
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#include "action_util.h"
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/** @brief True when Caps Word is active. */
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static bool caps_word_active = false;
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#if CAPS_WORD_IDLE_TIMEOUT > 0
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// Constrain timeout to a sensible range. With 16-bit timers, the longest
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// timeout possible is 32768 ms, rounded here to 30000 ms = half a minute.
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# if CAPS_WORD_IDLE_TIMEOUT < 100 || CAPS_WORD_IDLE_TIMEOUT > 30000
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# error "CAPS_WORD_IDLE_TIMEOUT must be between 100 and 30000 ms"
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# endif
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/** @brief Deadline for idle timeout. */
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static uint16_t idle_timer = 0;
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void caps_word_task(void) {
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if (caps_word_active && timer_expired(timer_read(), idle_timer)) {
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caps_word_off();
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}
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}
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void caps_word_reset_idle_timer(void) {
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idle_timer = timer_read() + CAPS_WORD_IDLE_TIMEOUT;
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}
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#else
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void caps_word_task(void) {}
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#endif // CAPS_WORD_IDLE_TIMEOUT > 0
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void caps_word_on(void) {
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if (caps_word_active) {
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return;
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}
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clear_mods();
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#ifndef NO_ACTION_ONESHOT
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clear_oneshot_mods();
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#endif // NO_ACTION_ONESHOT
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#if CAPS_WORD_IDLE_TIMEOUT > 0
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caps_word_reset_idle_timer();
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#endif // CAPS_WORD_IDLE_TIMEOUT > 0
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caps_word_active = true;
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caps_word_set_user(true);
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}
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void caps_word_off(void) {
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if (!caps_word_active) {
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return;
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}
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unregister_weak_mods(MOD_MASK_SHIFT); // Make sure weak shift is off.
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caps_word_active = false;
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caps_word_set_user(false);
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}
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void caps_word_toggle(void) {
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if (caps_word_active) {
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caps_word_off();
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} else {
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caps_word_on();
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}
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}
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bool is_caps_word_on(void) {
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return caps_word_active;
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}
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__attribute__((weak)) void caps_word_set_user(bool active) {}
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