mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-11-28 06:00:12 +00:00
550 lines
19 KiB
C
550 lines
19 KiB
C
#include "host.h"
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#include "timer.h"
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#include "keymap.h"
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#include "keycode.h"
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#include "keyboard.h"
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#include "mousekey.h"
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#include "command.h"
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#include "util.h"
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#include "debug.h"
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#include "action.h"
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static void process(keyevent_t event, action_t action);
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static void register_code(uint8_t code);
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static void unregister_code(uint8_t code);
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static void add_mods(uint8_t mods);
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static void del_mods(uint8_t mods);
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static void set_mods(uint8_t mods);
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static void clear_keyboard(void);
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static void clear_keyboard_but_mods(void);
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static bool sending_anykey(void);
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static void layer_switch(uint8_t new_layer);
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/* tap */
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#define TAP_TIME 200
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static keyevent_t last_event = {};
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static uint8_t tap_count = 0;
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/* layer */
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uint8_t default_layer = 0;
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uint8_t current_layer = 0;
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keyrecord_t delaying_layer = {};
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/* waiting keys buffer */
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#define WAITING_KEYS_BUFFER 3
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static keyrecord_t waiting_keys[WAITING_KEYS_BUFFER] = {};
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static uint8_t waiting_keys_head = 0;
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static bool waiting_keys_enqueue(keyevent_t event, action_t action)
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{
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debug("waiting_keys["); debug_dec(waiting_keys_head); debug("] = ");
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debug_hex16(action.code); debug("\n");
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if (waiting_keys_head < WAITING_KEYS_BUFFER) {
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waiting_keys[waiting_keys_head++] = (keyrecord_t){ .event = event,
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.action = action,
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.mods = host_get_mods() };
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} else {
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return true;
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}
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}
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static void waiting_keys_clear(void)
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{
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waiting_keys_head = 0;
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}
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static bool waiting_keys_has(keypos_t key)
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{
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for (uint8_t i = 0; i < waiting_keys_head; i++) {
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if KEYEQ(key, waiting_keys[i].event.key) return true;
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}
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return false;
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}
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static void waiting_keys_process_in_current_layer(void)
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{
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// TODO: in case of including layer key in waiting keys
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uint8_t tmp_mods = host_get_mods();
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for (uint8_t i = 0; i < waiting_keys_head; i++) {
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/* revive status of mods */
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host_set_mods(waiting_keys[i].mods);
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process(waiting_keys[i].event, keymap_get_action(current_layer,
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waiting_keys[i].event.key.row,
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waiting_keys[i].event.key.col));
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debug("waiting_keys_process_in_current_layer["); debug_dec(i); debug("]\n");
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}
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host_set_mods(tmp_mods);
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waiting_keys_clear();
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}
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void action_exec(keyevent_t event)
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{
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/* When delaying layer switch */
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if (delaying_layer.action.code) {
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/* Layer switch when tap time elapses or waiting key is released */
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if ((timer_elapsed(delaying_layer.event.time) > TAP_TIME) ||
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(!event.pressed && waiting_keys_has(event.key))) {
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/* layer switch */
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switch (delaying_layer.action.kind.id) {
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case ACT_LAYER_PRESSED:
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layer_switch(delaying_layer.action.layer.opt);
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break;
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case ACT_LAYER_BIT:
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layer_switch(current_layer | delaying_layer.action.layer.opt);
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break;
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}
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delaying_layer = (keyrecord_t){};
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/* Process waiting keys in new layer */
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waiting_keys_process_in_current_layer();
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}
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/* when delaying layer key is released within delay term */
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else if (!event.pressed && KEYEQ(event.key, delaying_layer.event.key)) {
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/* tap key down */
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debug("tap[delaying_layer](register): fist\n");
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uint8_t tmp_mods = host_get_mods();
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host_set_mods(delaying_layer.mods);
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register_code(delaying_layer.action.layer.code);
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delaying_layer = (keyrecord_t){};
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host_set_mods(tmp_mods);
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/* process waiting keys */
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waiting_keys_process_in_current_layer();
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}
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}
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// not real event. event just to update delaying layer.
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if (IS_NOEVENT(event)) {
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return;
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}
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/* count tap when key is up */
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if (KEYEQ(event.key, last_event.key) && timer_elapsed(last_event.time) <= TAP_TIME) {
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if (!event.pressed) tap_count++;
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} else {
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tap_count = 0;
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}
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action_t action = keymap_get_action(current_layer, event.key.row, event.key.col);
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// TODO: all key events(pressed, released) should be recorded?
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/* postpone key-down events while delaying layer */
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if (delaying_layer.action.code) {
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if (event.pressed) {
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waiting_keys_enqueue(event, action);
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} else {
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process(event, action);
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}
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} else {
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process(event, action);
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}
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/* last event */
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last_event = event;
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}
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static void process(keyevent_t event, action_t action)
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{
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//action_t action = keymap_get_action(current_layer, event.key.row, event.key.col);
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debug("action: "); debug_hex16(action.code);
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if (event.pressed) debug("[down]\n"); else debug("[up]\n");
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switch (action.kind.id) {
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/* Key and Mods */
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case ACT_LMODS:
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// |pressed |released
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// --------------+---------------------------------+------------
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// key |down(key) |up(key)
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// mods |add(mods) |del(mods)
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// key with mods |add(mods), down(key), unset(mods)|up(key)
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if (event.pressed) {
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uint8_t tmp_mods = host_get_mods();
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if (action.key.mods) {
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host_add_mods(action.key.mods);
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host_send_keyboard_report();
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}
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register_code(action.key.code);
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if (action.key.mods && action.key.code) {
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host_set_mods(tmp_mods);
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host_send_keyboard_report();
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}
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} else {
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if (action.key.mods && !action.key.code) {
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host_del_mods(action.key.mods);
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host_send_keyboard_report();
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}
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unregister_code(action.key.code);
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}
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break;
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case ACT_RMODS:
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// |pressed |released
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// --------------+---------------------------------+------------
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// key |down(key) |up(key)
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// mods |add(mods) |del(mods)
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// key with mods |add(mods), down(key), unset(mods)|up(key)
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if (event.pressed) {
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uint8_t tmp_mods = host_get_mods();
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if (action.key.mods) {
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host_add_mods(action.key.mods<<4);
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host_send_keyboard_report();
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}
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register_code(action.key.code);
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if (action.key.mods && action.key.code) {
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host_set_mods(tmp_mods);
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host_send_keyboard_report();
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}
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} else {
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if (action.key.mods && !action.key.code) {
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host_del_mods(action.key.mods<<4);
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host_send_keyboard_report();
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}
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unregister_code(action.key.code);
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}
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break;
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case ACT_LMODS_TAP:
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if (event.pressed) {
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if (tap_count == 0) {
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add_mods(action.key.mods);
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} else {
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debug("tap[lmods](register): "); debug_hex(tap_count); debug("\n");
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register_code(action.key.code);
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}
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} else {
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if (tap_count == 0) {
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del_mods(action.key.mods);
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} else if (tap_count == 1) {
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debug("tap[lmods](register/unregister): "); debug_hex(tap_count); debug("\n");
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del_mods(action.key.mods);
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register_code(action.key.code);
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unregister_code(action.key.code);
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} else {
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debug("tap[lmods](unregister): "); debug_hex(tap_count); debug("\n");
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unregister_code(action.key.code);
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}
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}
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break;
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case ACT_RMODS_TAP:
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if (event.pressed) {
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if (tap_count == 0) {
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add_mods(action.key.mods<<4);
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} else {
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debug("tap[rmods](register): "); debug_hex(tap_count); debug("\n");
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register_code(action.key.code);
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}
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} else {
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if (tap_count == 0) {
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del_mods(action.key.mods<<4);
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} else if (tap_count == 1) {
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debug("tap[rmods](register/unregister): "); debug_hex(tap_count); debug("\n");
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del_mods(action.key.mods<<4);
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register_code(action.key.code);
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unregister_code(action.key.code);
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} else {
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debug("tap[rmods](unregister): "); debug_hex(tap_count); debug("\n");
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unregister_code(action.key.code);
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}
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}
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break;
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/* other HID usage */
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case ACT_USAGE:
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#ifdef EXTRAKEY_ENABLE
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switch (action.usage.page) {
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case ACTION_USAGE_PAGE_SYSTEM:
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if (event.pressed) {
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host_system_send(action.usage.code);
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} else {
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host_system_send(0);
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}
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break;
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case ACTION_USAGE_PAGE_CONSUMER:
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if (event.pressed) {
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host_consumer_send(action.usage.code);
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} else {
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host_consumer_send(0);
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}
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break;
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}
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#endif
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break;
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/* Mouse key */
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case ACT_MOUSEKEY:
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#ifdef MOUSEKEY_ENABLE
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if (event.pressed) {
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mousekey_on(action.key.code);
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mousekey_send();
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} else {
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mousekey_off(action.key.code);
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mousekey_send();
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}
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#endif
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break;
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/* Layer key */
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case ACT_LAYER_PRESSED:
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// layer action when pressed
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switch (action.layer.code) {
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case 0x00:
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if (event.pressed) {
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layer_switch(action.layer.opt);
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}
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break;
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case 0xF0:
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// TODO: tap toggle
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break;
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case 0xFF:
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if (event.pressed) {
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default_layer = action.layer.opt;
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layer_switch(default_layer);
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}
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break;
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default:
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// with tap key
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if (event.pressed) {
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if (tap_count == 0) {
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// not tapping yet
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if (host_has_anykey()) {
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register_code(action.layer.code);
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} else {
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debug("Delay switching layer("); debug_hex8(action.layer.opt); debug(")\n");
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delaying_layer = (keyrecord_t){
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.event = event,
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.action = action,
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.mods = host_get_mods()
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};
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}
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} else if (tap_count > 0) {
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// pressed after tapping
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debug("tap[layer](register): "); debug_hex(tap_count); debug("\n");
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register_code(action.layer.code);
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}
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} else {
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// released after tapping
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debug("tap[layer](unregister): "); debug_hex(tap_count); debug("\n");
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unregister_code(action.layer.code);
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}
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break;
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}
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break;
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case ACT_LAYER_RELEASED:
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switch (action.layer.code) {
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case 0x00:
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if (!event.pressed) {
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layer_switch(action.layer.opt);
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}
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break;
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case 0xF0:
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// Ignored. LAYER_RELEASED with tap toggle is invalid action.
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break;
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case 0xFF:
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if (!event.pressed) {
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default_layer = action.layer.opt;
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layer_switch(default_layer);
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}
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break;
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default:
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// Ignored. LAYER_RELEASED with tap key is invalid action.
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break;
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}
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break;
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case ACT_LAYER_BIT:
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switch (action.layer.code) {
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case 0x00:
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if (event.pressed) {
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layer_switch(current_layer | action.layer.opt);
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} else {
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layer_switch(current_layer & ~action.layer.opt);
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}
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break;
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case 0xF0:
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// TODO: tap toggle
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break;
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case 0xFF:
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// change default layer
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if (event.pressed) {
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default_layer = current_layer | action.layer.opt;
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layer_switch(default_layer);
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} else {
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default_layer = current_layer & ~action.layer.opt;
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layer_switch(default_layer);
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}
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break;
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default:
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// with tap key
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if (event.pressed) {
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if (tap_count == 0) {
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if (host_has_anykey()) {
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register_code(action.layer.code);
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} else {
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delaying_layer = (keyrecord_t){
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.event = event,
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.action = action,
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.mods = keyboard_report->mods
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};
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}
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} else if (tap_count > 0) {
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debug("tap[layer_bit](register): "); debug_hex(tap_count); debug("\n");
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register_code(action.layer.code);
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}
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} else {
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if (tap_count == 0) {
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// no tap
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layer_switch(current_layer & ~action.layer.opt);
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} else if (tap_count == 1) {
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// tap
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register_code(action.layer.code);
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}
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unregister_code(action.layer.code);
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}
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break;
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}
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case ACT_LAYER_EXT:
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switch (action.layer.opt) {
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case 0x00:
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// set default layer when pressed
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switch (action.layer.code) {
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case 0x00:
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if (event.pressed) {
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layer_switch(default_layer);
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}
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break;
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case 0xF0:
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// TODO: tap toggle
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break;
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case 0xFF:
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if (event.pressed) {
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default_layer = current_layer;
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layer_switch(default_layer);
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}
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break;
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default:
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// TODO: tap key
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break;
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}
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break;
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case 0x01:
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// set default layer when released
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switch (action.layer.code) {
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case 0x00:
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if (!event.pressed) {
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layer_switch(default_layer);
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}
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break;
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case 0xFF:
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if (!event.pressed) {
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default_layer = current_layer;
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layer_switch(default_layer);
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}
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break;
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case 0xF0:
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default:
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// Ignore tap.
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if (!event.pressed) {
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layer_switch(default_layer);
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}
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break;
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}
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break;
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}
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break;
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/* Extentions */
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case ACT_MACRO:
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case ACT_COMMAND:
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case ACT_FUNCTION:
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default:
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break;
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}
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}
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static void register_code(uint8_t code)
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{
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if (code == KC_NO) {
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return;
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}
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else if IS_KEY(code) {
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// TODO: should push command_proc out of this block?
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if (!command_proc(code)) {
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host_add_key(code);
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host_send_keyboard_report();
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}
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}
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else if IS_MOD(code) {
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host_add_mods(MOD_BIT(code));
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host_send_keyboard_report();
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}
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}
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static void unregister_code(uint8_t code)
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{
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if IS_KEY(code) {
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host_del_key(code);
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host_send_keyboard_report();
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}
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else if IS_MOD(code) {
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host_del_mods(MOD_BIT(code));
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host_send_keyboard_report();
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}
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}
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static void add_mods(uint8_t mods)
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{
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if (mods) {
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host_add_mods(mods);
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host_send_keyboard_report();
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}
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}
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static void del_mods(uint8_t mods)
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{
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if (mods) {
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host_del_mods(mods);
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host_send_keyboard_report();
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}
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}
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static void set_mods(uint8_t mods)
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{
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host_set_mods(mods);
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host_send_keyboard_report();
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}
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static void clear_keyboard(void)
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{
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host_clear_mods();
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clear_keyboard_but_mods();
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}
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static void clear_keyboard_but_mods(void)
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{
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host_clear_keys();
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host_send_keyboard_report();
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#ifdef MOUSEKEY_ENABLE
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mousekey_clear();
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mousekey_send();
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#endif
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#ifdef EXTRAKEY_ENABLE
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host_system_send(0);
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host_consumer_send(0);
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#endif
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}
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static bool sending_anykey(void)
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{
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return (host_has_anykey() || host_mouse_in_use() ||
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host_last_sysytem_report() || host_last_consumer_report());
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}
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static void layer_switch(uint8_t new_layer)
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{
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if (current_layer != new_layer) {
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debug("Layer Switch: "); debug_hex(current_layer);
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debug(" -> "); debug_hex(new_layer); debug("\n");
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current_layer = new_layer;
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clear_keyboard_but_mods(); // To avoid stuck keys
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// TODO: update mods with full scan of matrix? if modifier changes between layers
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}
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}
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