d38740cebf
* Add timestamps to position events and behaviors. - Take original event timestamps into consideration so nested tap-holds have proper timing. - Add position and timestamp to keycode state changed event so the one-shot behavior can properly identify other keypresses and timings. - Add timestamp to position events received from peripheral * reduce number of arguments to behaviors
73 lines
2 KiB
C
73 lines
2 KiB
C
/*
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* Copyright (c) 2020 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.h>
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#include <device.h>
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#include <drivers/kscan.h>
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#include <logging/log.h>
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LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
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#include <zmk/matrix_transform.h>
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#include <zmk/event-manager.h>
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#include <zmk/events/position-state-changed.h>
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#define ZMK_KSCAN_EVENT_STATE_PRESSED 0
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#define ZMK_KSCAN_EVENT_STATE_RELEASED 1
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struct zmk_kscan_event {
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u32_t row;
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u32_t column;
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u32_t state;
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};
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struct zmk_kscan_msg_processor {
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struct k_work work;
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} msg_processor;
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K_MSGQ_DEFINE(zmk_kscan_msgq, sizeof(struct zmk_kscan_event), CONFIG_ZMK_KSCAN_EVENT_QUEUE_SIZE, 4);
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static void zmk_kscan_callback(struct device *dev, u32_t row, u32_t column, bool pressed) {
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struct zmk_kscan_event ev = {
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.row = row,
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.column = column,
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.state = (pressed ? ZMK_KSCAN_EVENT_STATE_PRESSED : ZMK_KSCAN_EVENT_STATE_RELEASED)};
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k_msgq_put(&zmk_kscan_msgq, &ev, K_NO_WAIT);
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k_work_submit(&msg_processor.work);
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}
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void zmk_kscan_process_msgq(struct k_work *item) {
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struct zmk_kscan_event ev;
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while (k_msgq_get(&zmk_kscan_msgq, &ev, K_NO_WAIT) == 0) {
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bool pressed = (ev.state == ZMK_KSCAN_EVENT_STATE_PRESSED);
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u32_t position = zmk_matrix_transform_row_column_to_position(ev.row, ev.column);
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struct position_state_changed *pos_ev;
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LOG_DBG("Row: %d, col: %d, position: %d, pressed: %s\n", ev.row, ev.column, position,
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(pressed ? "true" : "false"));
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pos_ev = new_position_state_changed();
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pos_ev->state = pressed;
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pos_ev->position = position;
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pos_ev->timestamp = k_uptime_get();
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ZMK_EVENT_RAISE(pos_ev);
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}
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}
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int zmk_kscan_init(char *name) {
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struct device *dev = device_get_binding(name);
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if (dev == NULL) {
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LOG_ERR("Failed to get the KSCAN device");
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return -EINVAL;
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}
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k_work_init(&msg_processor.work, zmk_kscan_process_msgq);
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kscan_config(dev, zmk_kscan_callback);
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kscan_enable_callback(dev);
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return 0;
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}
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