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