]> git.donarmstrong.com Git - tmk_firmware.git/blobdiff - common/action.c
Rewrite layer action with layer_switch
[tmk_firmware.git] / common / action.c
index e93a9afe33e8b4c833670a38e8dd30fff814f95d..246fd99d8ab5f8d54fe8f3aab09ad6c8e9607ce6 100644 (file)
@@ -24,45 +24,18 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util.h"
 #include "debug.h"
 #include "action.h"
+#include "layer_switch.h"
 
 
-static bool process_tapping(keyrecord_t *record);
 static void process_action(keyrecord_t *record);
+static bool process_tapping(keyrecord_t *record);
+static void waiting_buffer_scan_tap(void);
 
-static void debug_event(keyevent_t event)
-{
-    debug_hex16(event.key.raw);
-    if (event.pressed) debug("d("); else debug("u(");
-    debug_dec(event.time); debug(")");
-}
-static void debug_record(keyrecord_t record)
-{
-    debug_event(record.event); debug(":"); debug_dec(record.tap_count);
-}
-static void debug_action(action_t action)
-{
-    switch (action.kind.id) {
-        case ACT_LMODS:             debug("ACT_LMODS");             break;
-        case ACT_RMODS:             debug("ACT_RMODS");             break;
-        case ACT_LMODS_TAP:         debug("ACT_LMODS_TAP");         break;
-        case ACT_RMODS_TAP:         debug("ACT_RMODS_TAP");         break;
-        case ACT_USAGE:             debug("ACT_USAGE");             break;
-        case ACT_MOUSEKEY:          debug("ACT_MOUSEKEY");          break;
-        case ACT_LAYER_PRESSED:     debug("ACT_LAYER_PRESSED");     break;
-        case ACT_LAYER_RELEASED:    debug("ACT_LAYER_RELEASED");    break;
-        case ACT_LAYER_BIT:         debug("ACT_LAYER_BIT");         break;
-        case ACT_LAYER_EXT:         debug("ACT_LAYER_EXT");         break;
-        case ACT_MACRO:             debug("ACT_MACRO");             break;
-        case ACT_COMMAND:           debug("ACT_COMMAND");           break;
-        case ACT_FUNCTION:          debug("ACT_FUNCTION");          break;
-        default:                    debug("UNKNOWN");               break;
-    }
-    debug("[");
-    debug_hex4(action.kind.param>>8);
-    debug(":");
-    debug_hex8(action.kind.param & 0xff);
-    debug("]");
-}
+static void debug_event(keyevent_t event);
+static void debug_record(keyrecord_t record);
+static void debug_action(action_t action);
+static void debug_tapping_key(void);
+static void debug_waiting_buffer(void);
 
 
 /*
@@ -102,14 +75,6 @@ static uint8_t waiting_buffer_head = 0;
 /* point to the oldest data cell to deq */
 static uint8_t waiting_buffer_tail = 0;
 
-static void debug_waiting_buffer(void)
-{
-    debug("{ ");
-    for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
-        debug("["); debug_dec(i); debug("]="); debug_record(waiting_buffer[i]); debug(" ");
-    }
-    debug("}\n");
-}
 static bool waiting_buffer_enq(keyrecord_t record)
 {
     if (IS_NOEVENT(record.event)) {
@@ -127,26 +92,14 @@ static bool waiting_buffer_enq(keyrecord_t record)
     debug("waiting_buffer_enq: "); debug_waiting_buffer();
     return true;
 }
-/*
-static keyrecord_t waiting_buffer_deq(void)
-{
-    if (waiting_buffer_head == waiting_buffer_tail) {
-        return (keyrecord_t){};
-    }
-    uint8_t last_tail = waiting_buffer_tail;
-    waiting_buffer_tail = waiting_buffer_tail + 1 % WAITING_BUFFER_SIZE;
-    return waiting_buffer[last_tail];
-}
-static bool waiting_buffer_is_empty(void)
-{
-    return (waiting_buffer_head == waiting_buffer_tail);
-}
-*/
+
 static void waiting_buffer_clear(void)
 {
     waiting_buffer_head = 0;
     waiting_buffer_tail = 0;
 }
+
+#if TAPPING_TERM >= 500
 static bool waiting_buffer_typed(keyevent_t event)
 {
     for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
@@ -156,7 +109,9 @@ static bool waiting_buffer_typed(keyevent_t event)
     }
     return false;
 }
-static bool waiting_buffer_has_anykey_pressed(void)
+#endif
+
+bool waiting_buffer_has_anykey_pressed(void)
 {
     for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
         if (waiting_buffer[i].event.pressed) return true;
@@ -182,18 +137,21 @@ static struct {
     bool    ready;
     bool    disabled;
 }   oneshot_state;
+
 static void oneshot_start(uint8_t mods, uint16_t time)
 {
     oneshot_state.mods = mods;
     oneshot_state.time = time;
     oneshot_state.ready = true;
 }
+
 static void oneshot_cancel(void)
 {
     oneshot_state.mods = 0;
     oneshot_state.time = 0;
     oneshot_state.ready = false;
 }
+
 static void oneshot_toggle(void)
 {
     oneshot_state.disabled = !oneshot_state.disabled;
@@ -219,6 +177,7 @@ void action_exec(keyevent_t event)
         // enqueue
         if (!waiting_buffer_enq(record)) {
             // clear all in case of overflow.
+            debug("OVERFLOW: CLEAR ALL STATES\n");
             clear_keyboard();
             waiting_buffer_clear();
             tapping_key = (keyrecord_t){};
@@ -229,6 +188,7 @@ void action_exec(keyevent_t event)
     if (!IS_NOEVENT(event) && waiting_buffer_head != waiting_buffer_tail) {
         debug("---- action_exec: process waiting_buffer -----\n");
     }
+
     for (; waiting_buffer_tail != waiting_buffer_head; waiting_buffer_tail = (waiting_buffer_tail + 1) % WAITING_BUFFER_SIZE) {
         if (process_tapping(&waiting_buffer[waiting_buffer_tail])) {
             debug("processed: waiting_buffer["); debug_dec(waiting_buffer_tail); debug("] = ");
@@ -242,6 +202,23 @@ void action_exec(keyevent_t event)
     }
 }
 
+static action_t get_action(key_t key)
+{
+    action_t action;
+    action.code = ACTION_NO;
+
+    /* layer_switch */
+    action = layer_switch_get_action(key);
+    if (action.code != ACTION_TRANSPARENT) {
+        return action;
+    }
+
+    /* default layer */
+    //debug("get_aciton: default layer: "); debug_dec(default_layer); debug("\n");
+    action = action_for_key(default_layer, key);
+    return action;
+}
+
 static void process_action(keyrecord_t *record)
 {
     keyevent_t event = record->event;
@@ -249,9 +226,9 @@ static void process_action(keyrecord_t *record)
 
     if (IS_NOEVENT(event)) { return; }
 
-    action_t action = keymap_get_action(current_layer, event.key.pos.row, event.key.pos.col);
-    //debug("action: "); debug_hex16(action.code); if (event.pressed) debug("d\n"); else debug("u\n");
-    debug("ACTION: "); debug_action(action); debug("\n");
+    action_t action = get_action(event.key);
+    debug("ACTION: "); debug_action(action); debug(" ");
+    layer_switch_debug(); debug("["); debug_dec(default_layer); debug("]\n");
 
     switch (action.kind.id) {
         /* Key and Mods */
@@ -297,7 +274,7 @@ static void process_action(keyrecord_t *record)
                                 debug("MODS_TAP: Oneshot: start\n");
                                 oneshot_start(mods, event.time);
                             }
-                            else if (tap_count == 5) {
+                            else if (tap_count == TAPPING_TOGGLE) {
                                 debug("MODS_TAP: Oneshot: toggle\n");
                                 oneshot_toggle();
                             }
@@ -310,7 +287,7 @@ static void process_action(keyrecord_t *record)
                         } else {
                             if (tap_count == 0) {
                                 debug("MODS_TAP: Oneshot: cancel/del_mods\n");
-                                // cancel oneshot by holding.
+                                // cancel oneshot on hold
                                 oneshot_cancel();
                                 del_mods(mods);
                             }
@@ -360,14 +337,14 @@ static void process_action(keyrecord_t *record)
         case ACT_USAGE:
 #ifdef EXTRAKEY_ENABLE
             switch (action.usage.page) {
-                case ACTION_USAGE_PAGE_SYSTEM:
+                case PAGE_SYSTEM:
                     if (event.pressed) {
                         host_system_send(action.usage.code);
                     } else {
                         host_system_send(0);
                     }
                     break;
-                case ACTION_USAGE_PAGE_CONSUMER:
+                case PAGE_CONSUMER:
                     if (event.pressed) {
                         host_consumer_send(action.usage.code);
                     } else {
@@ -392,272 +369,220 @@ static void process_action(keyrecord_t *record)
             break;
 
         /* Layer key */
-        case ACT_LAYER_PRESSED:
-            // layer action when pressed
+        case ACT_LAYER_SET:
             switch (action.layer.code) {
-                case 0x00:
+                case LAYER_MOMENTARY:  /* momentary */
                     if (event.pressed) {
-                        layer_switch(action.layer.opt);
+                        layer_switch_move(action.layer.val);
+                    }
+                    else {
+                        // NOTE: This is needed by legacy keymap support
+                        layer_switch_move(0);
                     }
                     break;
-                case 0xF0:
-                    // tap toggle
+                case LAYER_ON_PRESS:
+                    if (event.pressed) {
+                        layer_switch_move(action.layer.val);
+                    }
+                    break;
+                case LAYER_ON_RELEASE:
+                    if (!event.pressed) {
+                        layer_switch_move(action.layer.val);
+                    }
+                    break;
+                case LAYER_ON_BOTH:
+                    layer_switch_move(action.layer.val);
+                    break;
+                case LAYER_TAP_TOGGLE:  /* switch on hold and toggle on several taps */
                     if (event.pressed) {
                         if (tap_count < TAPPING_TOGGLE) {
-                            layer_switch(action.layer.opt);
+                            layer_switch_move(action.layer.val);
                         }
                     } else {
                         if (tap_count >= TAPPING_TOGGLE) {
                             debug("LAYER_PRESSED: tap toggle.\n");
-                            layer_switch(action.layer.opt);
+                            layer_switch_move(action.layer.val);
                         }
                     }
                     break;
-                case 0xFF:
-                    // change default layer
+                case LAYER_SET_DEFAULT_ON_PRESS:
                     if (event.pressed) {
-                        default_layer = action.layer.opt;
-                        layer_switch(default_layer);
+                        default_layer = action.layer.val;
+                        layer_switch_move(0);
                     }
                     break;
+                case LAYER_SET_DEFAULT_ON_RELEASE:
+                    if (!event.pressed) {
+                        default_layer = action.layer.val;
+                        layer_switch_move(0);
+                    }
+                    break;
+                case LAYER_SET_DEFAULT_ON_BOTH:
+                    default_layer = action.layer.val;
+                    layer_switch_move(0);
+                    break;
                 default:
-                    // with tap key
+                    /* tap key */
                     if (event.pressed) {
-                       if (tap_count > 0) {
-                            debug("LAYER_PRESSED: Tap: register_code\n");
-                            register_code(action.layer.code);
-                       } else {
-                            debug("LAYER_PRESSED: No tap: layer_switch\n");
-                            layer_switch(action.layer.opt);
-                       }
+                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
+                             debug("LAYER_SET: Tap: register_code\n");
+                             register_code(action.layer.code);
+                        } else {
+                             debug("LAYER_SET: No tap: layer_set(on press)\n");
+                             layer_switch_move(action.layer.val);
+                        }
                     } else {
-                        if (tap_count > 0) {
-                            debug("LAYER_PRESSED: Tap: unregister_code\n");
+                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
+                            debug("LAYER_SET: Tap: unregister_code\n");
                             unregister_code(action.layer.code);
                         } else {
-                            debug("LAYER_PRESSED: No tap: NO ACTION\n");
+                            // NOTE: This is needed by legacy keymap support
+                            debug("LAYER_SET: No tap: return to default layer(on release)\n");
+                            layer_switch_move(0);
                         }
                     }
                     break;
             }
             break;
-        case ACT_LAYER_RELEASED:
+        case ACT_LAYER_BIT:
             switch (action.layer.code) {
-                case 0x00:
+                case LAYER_MOMENTARY:  /* momentary */
+                    if (event.pressed) {
+                        layer_switch_move(layer_switch_get_layer() | action.layer.val);
+                    } else {
+                        layer_switch_move(layer_switch_get_layer() & ~action.layer.val);
+                    }
+                    break;
+                case LAYER_ON_PRESS:
+                    if (event.pressed) {
+                        layer_switch_move(layer_switch_get_layer() ^ action.layer.val);
+                    }
+                    break;
+                case LAYER_ON_RELEASE:
                     if (!event.pressed) {
-                        layer_switch(action.layer.opt);
+                        layer_switch_move(layer_switch_get_layer() ^ action.layer.val);
                     }
                     break;
-                case 0xF0:
-                    // tap toggle
+                case LAYER_ON_BOTH:
+                    layer_switch_move(layer_switch_get_layer() ^ action.layer.val);
+                    break;
+                case LAYER_TAP_TOGGLE:  /* switch on hold and toggle on several taps */
                     if (event.pressed) {
-                        if (tap_count >= TAPPING_TOGGLE) {
-                            debug("LAYER_RELEASED: tap toggle.\n");
-                            layer_switch(action.layer.opt);
+                        if (tap_count < TAPPING_TOGGLE) {
+                            debug("LAYER_BIT: tap toggle(press).\n");
+                            layer_switch_move(layer_switch_get_layer() ^ action.layer.val);
                         }
                     } else {
-                        if (tap_count < TAPPING_TOGGLE) {
-                            layer_switch(action.layer.opt);
+                        if (tap_count <= TAPPING_TOGGLE) {
+                            debug("LAYER_BIT: tap toggle(release).\n");
+                            layer_switch_move(layer_switch_get_layer() ^ action.layer.val);
                         }
                     }
                     break;
-                case 0xFF:
-                    // change default layer
+                case LAYER_SET_DEFAULT_ON_PRESS:
+                    if (event.pressed) {
+                        default_layer = default_layer ^ action.layer.val;
+                        layer_switch_move(default_layer);
+                    }
+                    break;
+                case LAYER_SET_DEFAULT_ON_RELEASE:
                     if (!event.pressed) {
-                        default_layer = action.layer.opt;
-                        layer_switch(default_layer);
+                        default_layer = default_layer ^ action.layer.val;
+                        layer_switch_move(default_layer);
                     }
                     break;
+                case LAYER_SET_DEFAULT_ON_BOTH:
+                    default_layer = default_layer ^ action.layer.val;
+                    layer_switch_move(default_layer);
+                    break;
                 default:
-                    // with tap key
+                    // tap key
                     if (event.pressed) {
-                       if (tap_count > 0) {
-                            debug("LAYER_RELEASED: Tap: register_code\n");
+                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
+                            debug("LAYER_BIT: Tap: register_code\n");
                             register_code(action.layer.code);
-                       } else {
-                            debug("LAYER_RELEASED: No tap: NO ACTION\n");
-                       }
+                        } else {
+                            debug("LAYER_BIT: No tap: layer_bit(on press)\n");
+                            layer_switch_move(layer_switch_get_layer() ^ action.layer.val);
+                        }
                     } else {
-                        if (tap_count > 0) {
-                            debug("LAYER_RELEASED: Tap: unregister_code\n");
+                        if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
+                            debug("LAYER_BIT: Tap: unregister_code\n");
                             unregister_code(action.layer.code);
                         } else {
-                            debug("LAYER_RELEASED: No tap: layer_switch\n");
-                            layer_switch(action.layer.opt);
+                            debug("LAYER_BIT: No tap: layer_bit(on release)\n");
+                            layer_switch_move(layer_switch_get_layer() ^ action.layer.val);
                         }
                     }
                     break;
             }
             break;
-        case ACT_LAYER_BIT:
+        case ACT_LAYER_SWITCH:
             switch (action.layer.code) {
-                case 0x00:
+                case LAYER_MOMENTARY:  /* momentary */
                     if (event.pressed) {
-                        layer_switch(current_layer | action.layer.opt);
+                        layer_switch_on(action.layer.val);
                     } else {
-                        layer_switch(current_layer & ~action.layer.opt);
+                        layer_switch_off(action.layer.val);
                     }
                     break;
-                case 0xF0:
-                    // tap toggle
+                case LAYER_ON_PRESS:
                     if (event.pressed) {
-                        if (tap_count < TAPPING_TOGGLE) {
-                            debug("LAYER_BIT: tap toggle(press).\n");
-                            layer_switch(current_layer | action.layer.opt);
-                        }
-                    } else {
-                        if (tap_count < TAPPING_TOGGLE) {
-                            debug("LAYER_BIT: tap toggle(release).\n");
-                            layer_switch(current_layer & ~action.layer.opt);
-                        } else {
-                            debug("LAYER_BIT: tap toggle.\n");
-                            layer_switch(current_layer | action.layer.opt);
-                        }
+                        layer_switch_invert(action.layer.val);
                     }
                     break;
-                case 0xFF:
-                    // change default layer
+                case LAYER_ON_RELEASE:
+                    if (!event.pressed) {
+                        layer_switch_invert(action.layer.val);
+                    }
+                    break;
+                case LAYER_ON_BOTH:
+                    layer_switch_invert(action.layer.val);
+                    break;
+                case LAYER_TAP_TOGGLE:  /* switch on hold and toggle on several taps */
                     if (event.pressed) {
-                        default_layer = current_layer | action.layer.opt;
-                        layer_switch(default_layer);
+                        if (tap_count < TAPPING_TOGGLE) {
+                            debug("LAYER_SWITCH: tap toggle(press).\n");
+                            layer_switch_invert(action.layer.val);
+                        }
                     } else {
-                        default_layer = current_layer & ~action.layer.opt;
-                        layer_switch(default_layer);
+                        if (tap_count <= TAPPING_TOGGLE) {
+                            debug("LAYER_SWITCH: tap toggle(release).\n");
+                            layer_switch_invert(action.layer.val);
+                        }
                     }
                     break;
                 default:
-                    // with tap key
+                    // tap key
                     if (event.pressed) {
                         if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
-                            debug("LAYER_BIT: Tap: register_code\n");
+                            debug("LAYER_SWITCH: Tap: register_code\n");
                             register_code(action.layer.code);
                         } else {
-                            debug("LAYER_BIT: No tap: layer_switch(bit on)\n");
-                            layer_switch(current_layer | action.layer.opt);
+                            debug("LAYER_SWITCH: No tap: layer_switch on press\n");
+                            layer_switch_invert(action.layer.val);
                         }
                     } else {
                         if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
-                            debug("LAYER_BIT: Tap: unregister_code\n");
+                            debug("LAYER_SWITCH: Tap: unregister_code\n");
                             unregister_code(action.layer.code);
                         } else {
-                            debug("LAYER_BIT: No tap: layer_switch(bit off)\n");
-                            layer_switch(current_layer & ~action.layer.opt);
+                            debug("LAYER_SWITCH: No tap: layer_switch on release\n");
+                            layer_switch_invert(action.layer.val);
                         }
                     }
                     break;
             }
             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:
-                            // tap toggle
-                            if (event.pressed) {
-                                if (tap_count < TAPPING_TOGGLE) {
-                                    layer_switch(default_layer);
-                                }
-                            } else {
-                                if (tap_count >= TAPPING_TOGGLE) {
-                                    debug("LAYER_EXT_PRESSED: tap toggle.\n");
-                                    layer_switch(default_layer);
-                                }
-                            }
-                            break;
-                        case 0xFF:
-                            // change default layer
-                            if (event.pressed) {
-                                default_layer = current_layer;
-                                layer_switch(default_layer);
-                            }
-                            break;
-                        default:
-                            // with tap key
-                            if (event.pressed) {
-                               if (tap_count > 0) {
-                                    debug("LAYER_EXT_PRESSED: Tap: register_code\n");
-                                    register_code(action.layer.code);
-                               } else {
-                                    debug("LAYER_EXT_PRESSED: No tap: layer_switch\n");
-                                    layer_switch(default_layer);
-                               }
-                            } else {
-                                if (tap_count > 0) {
-                                    debug("LAYER_EXT_PRESSED: Tap: unregister_code\n");
-                                    unregister_code(action.layer.code);
-                                } else {
-                                    debug("LAYER_EXT_PRESSED: No tap: NO ACTION\n");
-                                }
-                            }
-                            break;
-                    }
-                    break;
-                case 0x01:
-                    // set default layer when released
-                    switch (action.layer.code) {
-                        case 0x00:
-                            if (!event.pressed) {
-                                layer_switch(default_layer);
-                            }
-                            break;
-                        case 0xF0:
-                            // tap toggle
-                            if (event.pressed) {
-                                if (tap_count >= TAPPING_TOGGLE) {
-                                    debug("LAYER_EXT_RELEASED: tap toggle.\n");
-                                    layer_switch(default_layer);
-                                }
-                            } else {
-                                if (tap_count < TAPPING_TOGGLE) {
-                                    layer_switch(default_layer);
-                                }
-                            }
-                            break;
-                        case 0xFF:
-                            // change default layer
-                            if (!event.pressed) {
-                                default_layer = current_layer;
-                                layer_switch(default_layer);
-                            }
-                            break;
-                        default:
-                            // with tap key
-                            if (event.pressed) {
-                               if (tap_count > 0) {
-                                    debug("LAYER_EXT_RELEASED: Tap: register_code\n");
-                                    register_code(action.layer.code);
-                               } else {
-                                    debug("LAYER_EXT_RELEASED: No tap: NO ACTION\n");
-                               }
-                            } else {
-                                if (tap_count > 0) {
-                                    debug("LAYER_EXT_RELEASED: Tap: unregister_code\n");
-                                    unregister_code(action.layer.code);
-                                } else {
-                                    debug("LAYER_EXT_RELEASED: No tap: layer_switch\n");
-                                    layer_switch(default_layer);
-                                }
-                            }
-                            break;
-                    }
-                    break;
-            }
-            break;
 
         /* Extentions */
         case ACT_MACRO:
+            // TODO
             break;
         case ACT_COMMAND:
             break;
         case ACT_FUNCTION:
-            // TODO
-            action_call_function(event, action.func.id);
+            action_function(record, action.func.id, action.func.opt);
             break;
         default:
             break;
@@ -666,10 +591,10 @@ static void process_action(keyrecord_t *record)
 
 /* Tapping
  *
- * Rule: Tap key is typed(pressed and released) within TAPPING_TERM
- *       without interfaring by typing other key.
+ * Rule: Tap key is typed(pressed and released) within TAPPING_TERM.
+ *       (without interfering by typing other key)
  */
-/* return true when key event is processed. */
+/* return true when key event is processed or consumed. */
 static bool process_tapping(keyrecord_t *keyp)
 {
     keyevent_t event = keyp->event;
@@ -680,74 +605,109 @@ static bool process_tapping(keyrecord_t *keyp)
             if (tapping_key.tap_count == 0) {
                 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
                     // first tap!
+                    debug("Tapping: First tap(0->1).\n");
                     tapping_key.tap_count = 1;
-                    debug("Tapping: First tap: tapping_key="); debug_record(tapping_key); debug("\n");
+                    debug_tapping_key();
                     process_action(&tapping_key);
 
                     // enqueue
                     keyp->tap_count = tapping_key.tap_count;
                     return false;
-                } else if (!event.pressed && waiting_buffer_typed(event)) {
+                }
+#if TAPPING_TERM >= 500
+                /* This can prevent from typing some tap keys in a row at a time. */
+                else if (!event.pressed && waiting_buffer_typed(event)) {
                     // other key typed. not tap.
-                    debug("Tapping: End. No tap. Interfered by typing key: tapping_key={}\n");
+                    debug("Tapping: End. No tap. Interfered by typing key\n");
                     process_action(&tapping_key);
                     tapping_key = (keyrecord_t){};
+                    debug_tapping_key();
 
                     // enqueue
                     return false;
-                } else {
-                    // other key events shall be stored till tapping state settles.
+                }
+#endif
+                else {
+                    // other key events shall be enq'd till tapping state settles.
                     return false;
                 }
             }
             // tap_count > 0
             else {
                 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
+                    debug("Tapping: Tap release("); debug_dec(tapping_key.tap_count); debug(")\n");
                     keyp->tap_count = tapping_key.tap_count;
-                    debug("Tapping: Tap release: tapping_key="); debug_record(*keyp); debug("\n");
+                    process_action(keyp);
                     tapping_key = *keyp;
-                    return false;
+                    debug_tapping_key();
+                    return true;
                 }
                 else if (is_tap_key(keyp->event.key) && event.pressed) {
-                    debug("Tapping: Start with forcing to release last tap: tapping_key=");
-                    debug_record(*keyp); debug("\n");
-// TODO: need only when tap > 1?
-                    process_action(&(keyrecord_t){
-                            .tap_count = tapping_key.tap_count,
-                            .event.key = tapping_key.event.key,
-                            .event.time = event.time,
-                            .event.pressed = false
-                    });
+                    if (tapping_key.tap_count > 1) {
+                        debug("Tapping: Start new tap with releasing last tap(>1).\n");
+                        // unregister key
+                        process_action(&(keyrecord_t){
+                                .tap_count = tapping_key.tap_count,
+                                .event.key = tapping_key.event.key,
+                                .event.time = event.time,
+                                .event.pressed = false
+                        });
+                    } else {
+                        debug("Tapping: Start while last tap(1).\n");
+                    }
                     tapping_key = *keyp;
-                    return false;
+                    waiting_buffer_scan_tap();
+                    debug_tapping_key();
+                    return true;
                 }
                 else {
                     if (!IS_NOEVENT(keyp->event)) {
-                        debug("Tapping: key event while tap: tapping_key=");
-                        debug_record(tapping_key); debug("\n");
+                        debug("Tapping: key event while last tap(>0).\n");
                     }
                     process_action(keyp);
                     return true;
                 }
             }
         }
-        // not within TAPPING_TERM
+        // after TAPPING_TERM
         else {
             if (tapping_key.tap_count == 0) {
-                // timeout. not tap.
-                debug("Tapping: End. Not tap(time out): tapping_key={}: "); debug_record(*keyp); debug("\n");
+                debug("Tapping: End. Timeout. Not tap(0): ");
+                debug_event(event); debug("\n");
                 process_action(&tapping_key);
                 tapping_key = (keyrecord_t){};
+                debug_tapping_key();
                 return false;
             }  else {
                 if (IS_TAPPING_KEY(event.key) && !event.pressed) {
-                    debug("Tapping: End. tap release.");
+                    debug("Tapping: End. last timeout tap release(>0).");
                     keyp->tap_count = tapping_key.tap_count;
                     process_action(keyp);
                     tapping_key = (keyrecord_t){};
                     return true;
-                } else {
-                    // other key after tap time out.
+                }
+                else if (is_tap_key(keyp->event.key) && event.pressed) {
+                    if (tapping_key.tap_count > 1) {
+                        debug("Tapping: Start new tap with releasing last timeout tap(>1).\n");
+                        // unregister key
+                        process_action(&(keyrecord_t){
+                                .tap_count = tapping_key.tap_count,
+                                .event.key = tapping_key.event.key,
+                                .event.time = event.time,
+                                .event.pressed = false
+                        });
+                    } else {
+                        debug("Tapping: Start while last timeout tap(1).\n");
+                    }
+                    tapping_key = *keyp;
+                    waiting_buffer_scan_tap();
+                    debug_tapping_key();
+                    return true;
+                }
+                else {
+                    if (!IS_NOEVENT(keyp->event)) {
+                        debug("Tapping: key event while last timeout tap(>0).\n");
+                    }
                     process_action(keyp);
                     return true;
                 }
@@ -758,14 +718,17 @@ static bool process_tapping(keyrecord_t *keyp)
             if (tapping_key.tap_count > 0 && IS_TAPPING_KEY(event.key) && event.pressed) {
                 // sequential tap.
                 keyp->tap_count = tapping_key.tap_count + 1;
-                debug("Tapping: tap press("); debug_dec(keyp->tap_count); debug(")\n");
+                debug("Tapping: Tap press("); debug_dec(keyp->tap_count); debug(")\n");
                 process_action(keyp);
                 tapping_key = *keyp;
+                debug_tapping_key();
                 return true;
             } else if (event.pressed && is_tap_key(event.key)) {
                 // Sequential tap can be interfered with other tap key.
                 debug("Tapping: Start with interfering other tap.\n");
                 tapping_key = *keyp;
+                waiting_buffer_scan_tap();
+                debug_tapping_key();
                 return true;
             } else {
                 if (!IS_NOEVENT(keyp->event)) debug("Tapping: other key just after tap.\n");
@@ -774,16 +737,20 @@ static bool process_tapping(keyrecord_t *keyp)
             }
         } else {
             // timeout. no sequential tap.
-            debug("Tapping: End(Time out after releasing last tap).\n");
+            debug("Tapping: End(Timeout after releasing last tap): ");
+            debug_event(event); debug("\n");
             tapping_key = (keyrecord_t){};
-            process_action(keyp);
-            return true;
+            debug_tapping_key();
+            return false;
         }
-    } else {
+    }
+    // not tapping satate
+    else {
         if (event.pressed && is_tap_key(event.key)) {
             debug("Tapping: Start(Press tap key).\n");
             tapping_key = *keyp;
-            debug("tapping_key="); debug_record(*keyp); debug("\n");
+            waiting_buffer_scan_tap();
+            debug_tapping_key();
             return true;
         } else {
             process_action(keyp);
@@ -792,6 +759,29 @@ static bool process_tapping(keyrecord_t *keyp)
     }
 }
 
+/* scan buffer for tapping */
+static void waiting_buffer_scan_tap(void)
+{
+    // tapping already is settled
+    if (tapping_key.tap_count > 0) return;
+    // invalid state: tapping_key released && tap_count == 0
+    if (!tapping_key.event.pressed) return;
+
+    for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
+        if (IS_TAPPING_KEY(waiting_buffer[i].event.key) &&
+                !waiting_buffer[i].event.pressed &&
+                WITHIN_TAPPING_TERM(waiting_buffer[i].event)) {
+            tapping_key.tap_count = 1;
+            waiting_buffer[i].tap_count = 1;
+            process_action(&tapping_key);
+
+            debug("waiting_buffer_scan_tap: found at ["); debug_dec(i); debug("]\n");
+            debug_waiting_buffer();
+            return;
+        }
+    }
+}
+
 
 
 /*
@@ -885,41 +875,83 @@ bool sending_anykey(void)
             host_last_sysytem_report() || host_last_consumer_report());
 }
 
-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
-        // NOTE: update mods with full scan of matrix? if modifier changes between layers
-    }
-}
-
 bool is_tap_key(key_t key)
 {
-    action_t action = keymap_get_action(current_layer, key.pos.row, key.pos.col);
+    action_t action = get_action(key);
+
     switch (action.kind.id) {
         case ACT_LMODS_TAP:
         case ACT_RMODS_TAP:
             return true;
-        case ACT_LAYER_PRESSED:
+        case ACT_LAYER_SET:
         case ACT_LAYER_BIT:
             switch (action.layer.code) {
-                case 0x00:
-                case 0xF1 ... 0xFF:
+                case LAYER_MOMENTARY:
+                case LAYER_ON_PRESS:
+                case LAYER_ON_RELEASE:
+                case LAYER_ON_BOTH:
+                case LAYER_SET_DEFAULT_ON_PRESS:
+                case LAYER_SET_DEFAULT_ON_RELEASE:
+                case LAYER_SET_DEFAULT_ON_BOTH:
                     return false;
-                case 0xF0:
-                default:
+                case LAYER_TAP_TOGGLE:
+                default:    /* tap key */
                     return true;
             }
             return false;
         case ACT_FUNCTION:
-            if (action.func.opt & 0x1) {
-                return true;
-            }
+            if (action.func.opt & FUNC_TAP) { return true; }
             return false;
     }
     return false;
 }
+
+
+/*
+ * debug print
+ */
+static void debug_event(keyevent_t event)
+{
+    debug_hex16((event.key.row<<8) | event.key.col);
+    if (event.pressed) debug("d("); else debug("u(");
+    debug_dec(event.time); debug(")");
+}
+static void debug_record(keyrecord_t record)
+{
+    debug_event(record.event); debug(":"); debug_dec(record.tap_count);
+}
+static void debug_action(action_t action)
+{
+    switch (action.kind.id) {
+        case ACT_LMODS:             debug("ACT_LMODS");             break;
+        case ACT_RMODS:             debug("ACT_RMODS");             break;
+        case ACT_LMODS_TAP:         debug("ACT_LMODS_TAP");         break;
+        case ACT_RMODS_TAP:         debug("ACT_RMODS_TAP");         break;
+        case ACT_USAGE:             debug("ACT_USAGE");             break;
+        case ACT_MOUSEKEY:          debug("ACT_MOUSEKEY");          break;
+        case ACT_LAYER_SET:         debug("ACT_LAYER_SET");         break;
+        case ACT_LAYER_BIT:         debug("ACT_LAYER_BIT");         break;
+        case ACT_LAYER_SWITCH:      debug("ACT_LAYER_SWITCH");      break;
+        case ACT_MACRO:             debug("ACT_MACRO");             break;
+        case ACT_COMMAND:           debug("ACT_COMMAND");           break;
+        case ACT_FUNCTION:          debug("ACT_FUNCTION");          break;
+        default:                    debug("UNKNOWN");               break;
+    }
+    debug("[");
+    debug_hex4(action.kind.param>>8);
+    debug(":");
+    debug_hex8(action.kind.param & 0xff);
+    debug("]");
+}
+static void debug_tapping_key(void)
+{
+    debug("TAPPING_KEY="); debug_record(tapping_key); debug("\n");
+}
+static void debug_waiting_buffer(void)
+{
+    debug("{ ");
+    for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
+        debug("["); debug_dec(i); debug("]="); debug_record(waiting_buffer[i]); debug(" ");
+    }
+    debug("}\n");
+}