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/* Copyright 2022 Aidan Gauland
* Copyright 2021 Colin Lam (Ploopy Corporation)
* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
* Copyright 2019 Sunjun Kim
* Copyright 2019 Hiroyuki Okada
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include QMK_KEYBOARD_H
#include "print.h"
#define NUM_LOCK_BITMASK 0b01
#define CAPS_LOCK_BITMASK 0b10
// World record for fastest index finger tapping is 1092 taps per minute, which
// is 55ms for a single tap.
// https://recordsetter.com/world-record/index-finger-taps-minute/46066
#define LED_CMD_TIMEOUT 25
#define DELTA_X_THRESHOLD 60
#define DELTA_Y_THRESHOLD 15
typedef enum {
// You could theoretically define 0b00 and send it by having a macro send
// the second tap after LED_CMD_TIMEOUT has elapsed.
// CMD_EXTRA = 0b00,
TG_SCROLL = 0b01,
CYC_DPI = 0b10,
CMD_RESET = 0b11 // CMD_ prefix to avoid clash with QMK macro
} led_cmd_t;
// State
static bool scroll_enabled = false;
static bool num_lock_state = false;
static bool caps_lock_state = false;
static bool in_cmd_window = false;
static int8_t delta_x = 0;
static int8_t delta_y = 0;
typedef struct {
led_cmd_t led_cmd;
uint8_t num_lock_count;
uint8_t caps_lock_count;
} cmd_window_state_t;
// Dummy
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {{{KC_NO}}};
report_mouse_t pointing_device_task_user(report_mouse_t mouse_report) {
if (scroll_enabled) {
delta_x += mouse_report.x;
delta_y += mouse_report.y;
if (delta_x > DELTA_X_THRESHOLD) {
mouse_report.h = 1;
delta_x = 0;
} else if (delta_x < -DELTA_X_THRESHOLD) {
mouse_report.h = -1;
delta_x = 0;
}
if (delta_y > DELTA_Y_THRESHOLD) {
mouse_report.v = -1;
delta_y = 0;
} else if (delta_y < -DELTA_Y_THRESHOLD) {
mouse_report.v = 1;
delta_y = 0;
}
mouse_report.x = 0;
mouse_report.y = 0;
}
return mouse_report;
}
void keyboard_post_init_user(void) {
num_lock_state = host_keyboard_led_state().num_lock;
caps_lock_state = host_keyboard_led_state().caps_lock;
}
uint32_t command_timeout(uint32_t trigger_time, void *cb_arg) {
cmd_window_state_t *cmd_window_state = (cmd_window_state_t *)cb_arg;
# ifdef CONSOLE_ENABLE
uprintf("Received command 0b%02b (", cmd_window_state->led_cmd);
# endif
switch (cmd_window_state->led_cmd) {
case TG_SCROLL:
# ifdef CONSOLE_ENABLE
uprint("TG_SCROLL)\n");
# endif
scroll_enabled = !scroll_enabled;
break;
case CYC_DPI:
# ifdef CONSOLE_ENABLE
uprint("CYC_DPI)\n");
# endif
cycle_dpi();
break;
case CMD_RESET:
# ifdef CONSOLE_ENABLE
uprint("QK_BOOT)\n");
# endif
reset_keyboard();
break;
default:
# ifdef CONSOLE_ENABLE
uprint("unknown)\n");
# endif
// Ignore unrecognised commands.
break;
}
cmd_window_state->led_cmd = 0;
cmd_window_state->num_lock_count = 0;
cmd_window_state->caps_lock_count = 0;
in_cmd_window = false;
return 0; // Don't repeat
}
bool led_update_user(led_t led_state) {
static cmd_window_state_t cmd_window_state = {
.led_cmd = 0b00,
.num_lock_count = 0,
.caps_lock_count = 0
};
// Start timer to end command window if we are not already in the middle of
// one.
if (!in_cmd_window) {
in_cmd_window = true;
defer_exec(LED_CMD_TIMEOUT, command_timeout, &cmd_window_state);
}
// Set num lock and caps lock bits when each is toggled on and off within
// the window.
if (led_state.num_lock != num_lock_state) {
cmd_window_state.num_lock_count++;
if (cmd_window_state.num_lock_count == 2) {
cmd_window_state.led_cmd |= NUM_LOCK_BITMASK;
cmd_window_state.num_lock_count = 0;
}
}
if (led_state.caps_lock != caps_lock_state) {
cmd_window_state.caps_lock_count++;
if (cmd_window_state.caps_lock_count == 2) {
cmd_window_state.led_cmd |= CAPS_LOCK_BITMASK;
cmd_window_state.caps_lock_count = 0;
}
}
// Keep our copy of the LED states in sync with the host.
num_lock_state = led_state.num_lock;
caps_lock_state = led_state.caps_lock;
return true;
}
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