From ef873791bdbff5cc6971705544e120c69ca94212 Mon Sep 17 00:00:00 2001 From: tmk Date: Sun, 27 Jan 2013 02:42:48 +0900 Subject: [PATCH] New tapping logic. --- common/action.c | 363 ++++++++++++++++++++++++++-------------------- common/action.h | 6 +- common/keyboard.c | 6 +- common/keyboard.h | 9 +- 4 files changed, 218 insertions(+), 166 deletions(-) diff --git a/common/action.c b/common/action.c index 88f8186c..81593154 100644 --- a/common/action.c +++ b/common/action.c @@ -10,7 +10,7 @@ #include "action.h" -static void process(keyevent_t event); +static void process(keyrecord_t *record); void test_func(keyevent_t event, uint8_t opt) { @@ -26,202 +26,250 @@ uint8_t default_layer = 0; uint8_t current_layer = 0; /* tap term(ms) */ -#define TAP_TIME 200 +#define TAP_TERM 200 /* This counts up when tap occurs */ uint8_t tap_count = 0; keyevent_t tapping_event = {}; +keyrecord_t tapping_key = {}; /* TAPPING: This indicates that whether tap or not is not decided yet. */ // NOTE: keyevent_t.time 0 means no event. -#define IS_TAPPING(k) (tapping_event.time != 0 && KEYEQ(tapping_event.key, (k))) +#define IS_TAPPING() (tapping_key.event.time != 0) +#define IS_TAPPING_PRESSED() (IS_TAPPING() && tapping_key.event.pressed) +#define IS_TAPPING_RELEASED() (IS_TAPPING() && !tapping_key.event.pressed) +#define IS_TAPPING_KEY(k) (IS_TAPPING() && KEYEQ(tapping_key.event.key, (k))) +#define WITHIN_TAP_TERM(e) (TIMER_DIFF_16(e.time, tapping_key.event.time) < TAP_TERM) /* waiting keys buffer */ -#define WAITING_KEYS_BUFFER 8 -static keyevent_t waiting_events[WAITING_KEYS_BUFFER] = {}; -static uint8_t waiting_events_head = 0; -static uint8_t waiting_events_tail = 0; +#define WAITING_BUFFER_SIZE 8 +static keyrecord_t waiting_buffer[WAITING_BUFFER_SIZE] = {}; +/* point to empty cell to enq */ +static uint8_t waiting_buffer_head = 0; +/* point to the oldest data cell to deq */ +static uint8_t waiting_buffer_tail = 0; -static bool waiting_events_enqueue(keyevent_t event) +static bool waiting_buffer_enq(keyrecord_t record) { - if (IS_NOEVENT(event)) { return true; } + if (IS_NOEVENT(record.event)) { + return true; + } - if ((waiting_events_head + 1) % WAITING_KEYS_BUFFER == waiting_events_tail) { - debug("waiting_events_enqueue: Over flow.\n"); + if ((waiting_buffer_head + 1) % WAITING_BUFFER_SIZE == waiting_buffer_tail) { + debug("waiting_buffer_enq: Over flow.\n"); return false; } - debug("waiting_events["); debug_dec(waiting_events_head); debug("] = "); - debug_hex16(event.key.raw); debug("\n"); + debug("waiting_buffer_enq["); debug_dec(waiting_buffer_head); debug("] = "); + debug_hex16(record.event.key.raw); debug("\n"); - waiting_events[waiting_events_head] = event; - waiting_events_head = (waiting_events_head + 1)% WAITING_KEYS_BUFFER; + waiting_buffer[waiting_buffer_head] = record; + waiting_buffer_head = (waiting_buffer_head + 1) % WAITING_BUFFER_SIZE; return true; } -static keyevent_t waiting_events_dequeue(void) +static keyrecord_t waiting_buffer_deq(void) { - if (waiting_events_head == waiting_events_tail) { - return (keyevent_t){}; + if (waiting_buffer_head == waiting_buffer_tail) { + return (keyrecord_t){}; } - uint8_t tail = waiting_events_tail; - waiting_events_tail = waiting_events_tail + 1 % WAITING_KEYS_BUFFER; - return waiting_events[tail]; + uint8_t last_tail = waiting_buffer_tail; + waiting_buffer_tail = waiting_buffer_tail + 1 % WAITING_BUFFER_SIZE; + return waiting_buffer[last_tail]; } -static void waiting_events_clear(void) +static bool waiting_buffer_is_empty(void) { - waiting_events_head = 0; - waiting_events_tail = 0; + return (waiting_buffer_head == waiting_buffer_tail); } -static bool waiting_events_has(key_t key) +static void waiting_buffer_clear(void) { - for (uint8_t i = waiting_events_tail; i != waiting_events_head; i = (i + 1) % WAITING_KEYS_BUFFER) { - if KEYEQ(key, waiting_events[i].key) return true; + waiting_buffer_head = 0; + waiting_buffer_tail = 0; +} +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) { + if (KEYEQ(event.key, waiting_buffer[i].event.key) && event.pressed != waiting_buffer[i].event.pressed) { + return true; + } } return false; } -static void waiting_events_process_in_current_layer(void) +static bool waiting_buffer_has_anykey_pressed(void) { - // TODO: in case of including tap key in waiting keys - for (uint8_t i = waiting_events_tail; i != waiting_events_head; i = (i + 1) % WAITING_KEYS_BUFFER) { - debug("waiting_events_process_in_current_layer["); debug_dec(i); debug("]\n"); - process(waiting_events[i]); - } - waiting_events_clear(); -} -static bool waiting_events_has_anykey_pressed(void) -{ - for (uint8_t i = waiting_events_tail; i != waiting_events_head; i = (i + 1) % WAITING_KEYS_BUFFER) { - if (waiting_events[i].pressed) return true; + 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; } return false; } +static void waiting_buffer_process(void) +{ +} +/* + * Rule to judge tap: + * Tap key is typed(pressed and released) within TAP_TERM + * without interfaring by typing other key. + */ +/* return true when key event is processed. */ +static bool process_tap(keyrecord_t *keyp) +{ + keyevent_t event = keyp->event; + + // if tapping + if (IS_TAPPING_PRESSED()) { + if (WITHIN_TAP_TERM(event)) { + if (tapping_key.tap_count == 0) { + if (IS_TAPPING_KEY(event.key) && !event.pressed) { + // first tap! + debug("Tapping: First tap.\n"); + tapping_key.tap_count = 1; + process(&tapping_key); + + // enqueue + keyp->tap_count = tapping_key.tap_count; + return false; + } else if (!event.pressed && waiting_buffer_typed(event)) { + // other key typed. not tap. + debug("Tapping: End(No tap. Interfered by typing key).\n"); + process(&tapping_key); + tapping_key = (keyrecord_t){}; + + // enqueue + return false; + } else { + // other key events shall be stored till tapping state settles. + return false; + } + } else { + if (IS_TAPPING_KEY(event.key) && !event.pressed) { + keyp->tap_count = tapping_key.tap_count; + debug("Tapping: tap release("); debug_dec(keyp->tap_count); debug(")\n"); + tapping_key = *keyp; + return false; + } + else if (is_tap_key(keyp->event.key) && event.pressed) { + debug("Tapping: Start with forcing to release last tap.\n"); + process(&(keyrecord_t){ + .tap_count = tapping_key.tap_count, + .event.key = tapping_key.event.key, + .event.time = event.time, + .event.pressed = false + }); + tapping_key = *keyp; + return false; + } + else { + if (!IS_NOEVENT(keyp->event)) debug("Tapping: key event while tap.\n"); + process(keyp); + return true; + } + } + } + // not within TAP_TERM + else { + if (tapping_key.tap_count == 0) { + // timeout. not tap. + debug("Tapping: End. Not tap(time out).\n"); + process(&tapping_key); + tapping_key = (keyrecord_t){}; + return false; + } else { + if (IS_TAPPING_KEY(event.key) && !event.pressed) { + debug("Tapping: End. tap release."); + keyp->tap_count = tapping_key.tap_count; + process(keyp); + tapping_key = (keyrecord_t){}; + return true; + } else { + // other key after tap time out. + process(keyp); + return true; + } + } + } + } else if (IS_TAPPING_RELEASED()) { + if (WITHIN_TAP_TERM(event)) { + 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"); + process(keyp); + tapping_key = *keyp; + 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; + return true; + } else { + if (!IS_NOEVENT(keyp->event)) debug("Tapping: other key just after tap.\n"); + process(keyp); + return true; + } + } else { + // timeout. no sequential tap. + debug("Tapping: End(Time out after releasing last tap).\n"); + tapping_key = (keyrecord_t){}; + process(keyp); + return true; + } + } else { + if (event.pressed && is_tap_key(event.key)) { + debug("Tapping: Start(Press tap key).\n"); + tapping_key = *keyp; + return true; + } else { + process(keyp); + return true; + } + } +} + void action_exec(keyevent_t event) { if (!IS_NOEVENT(event)) { - debug("event: "); debug_hex16(event.key.raw); + debug("event: "); + debug_hex16(event.time); debug(": "); + debug_hex16(event.key.raw); debug("["); if (event.pressed) debug("down"); else debug("up"); debug("]\n"); } - // In tapping term - if (tapping_event.time && timer_elapsed(tapping_event.time) < TAP_TIME) { - if (tapping_event.pressed) { - if (!event.pressed && KEYEQ(tapping_event.key, event.key)) { - debug("Tapping: Release tap key.\n"); - if (tap_count == 0) { - debug("Tapping: First tap.\n"); - // count up on release - tap_count++; + keyrecord_t record = { .event = event }; - process(tapping_event); - waiting_events_process_in_current_layer(); - } - tapping_event = event; - process(event); - } else if (!event.pressed && waiting_events_has(event.key)) { - debug("Tapping: End(No tap by typing waiting key).\n"); - - process(tapping_event); - waiting_events_process_in_current_layer(); - process(event); - - tap_count = 0; - tapping_event = (keyevent_t){}; - } else { - if (!IS_NOEVENT(event)) debug("Tapping: other key while tapping.\n"); - if (tap_count == 0) { - // store event - waiting_events_enqueue(event); - return; - } - process(event); - } - } else { - // Waiting for sequential tap - if (tap_count && event.pressed && KEYEQ(tapping_event.key, event.key)) { - tap_count++; - tapping_event = event; - debug("Tapping: Sequential tap("); debug_hex(tap_count); debug(")\n"); - process(event); - } else if (event.pressed && is_tap_key(event)) { - // Sequential tap can be interfered with other tap key. - debug("Tapping: Start with interfering other tap.\n"); - tapping_event = event; - tap_count = 0; - waiting_events_clear(); - } else { - if (!IS_NOEVENT(event)) debug("Tapping: other key just after tap.\n"); - process(event); - } + // pre-process on tapping + if (process_tap(&record)) { + if (!IS_NOEVENT(record.event)) debug("processed.\n"); + } else { + if (!IS_NOEVENT(record.event)) debug("enqueued.\n"); + if (!waiting_buffer_enq(record)) { + // clear all in case of overflow. + clear_keyboard(); + waiting_buffer_clear(); + tapping_key = (keyrecord_t){}; } } - // Not in tapping term - else { - if (tapping_event.time) { - if (tapping_event.pressed) { - if (tap_count == 0) { - // Not tap, holding down normal key. - debug("Tapping: End. Not tap(time out).\n"); - process(tapping_event); - waiting_events_process_in_current_layer(); - tap_count = 0; - tapping_event = (keyevent_t){}; - process(event); - } else { - // Holding down last tap key. waiting for releasing last tap key. - if (!event.pressed && KEYEQ(tapping_event.key, event.key)) { - debug("Tapping: End. Release holding last tap(time out).\n"); - process(event); - // clear after release last tap key - tap_count = 0; - tapping_event = (keyevent_t){}; - waiting_events_clear(); - } else if (event.pressed && is_tap_key(event)) { - debug("Tapping: Start with forcing to release last tap(time out).\n"); - process((keyevent_t){ - .key = tapping_event.key, - .time = event.time, - .pressed = false }); - - tap_count = 0; - tapping_event = event; - waiting_events_clear(); - } else { - if (!IS_NOEVENT(event)) debug("Tapping: other key while waiting for release of last tap(time out).\n"); - process(event); - } - } - } else { - // time out for sequential tap after complete last tap - debug("Tapping: End(Time out after releasing last tap).\n"); - tap_count = 0; - tapping_event = (keyevent_t){}; - waiting_events_clear(); - - process(event); - } + // TODO: need to process every time? + // process waiting_buffer + for (; waiting_buffer_tail != waiting_buffer_head; waiting_buffer_tail = (waiting_buffer_tail + 1) % WAITING_BUFFER_SIZE) { + if (process_tap(&waiting_buffer[waiting_buffer_tail])) { + debug("processed: waiting_buffer["); debug_dec(waiting_buffer_tail); debug("] = "); + debug_hex16(waiting_buffer[waiting_buffer_tail].event.key.raw); debug("\n"); } else { - // Normal state without tapping - if (event.pressed && is_tap_key(event)) { - debug("Tapping: Start(Press tap key).\n"); - tapping_event = event; - tap_count = 0; - waiting_events_clear(); - } else { - //debug("Normal event(No tapping)\n"); - process(event); - } + break; } - } } -static void process(keyevent_t event) +static void process(keyrecord_t *record) { + // TODO: use record + keyevent_t event = record->event; + uint8_t tap_count = record->tap_count; + if (IS_NOEVENT(event)) { return; } action_t action = keymap_get_action(current_layer, event.key.pos.row, event.key.pos.col); @@ -286,10 +334,11 @@ static void process(keyevent_t event) uint8_t tmp_mods = (action.kind.id == ACT_LMODS_TAP) ? action.key.mods : action.key.mods<<4; if (event.pressed) { - if (IS_TAPPING(event.key) && tap_count > 0) { - if (waiting_events_has_anykey_pressed()) { + if (IS_TAPPING_KEY(event.key) && tap_count > 0) { + if (waiting_buffer_has_anykey_pressed()) { debug("MODS_TAP: Tap: Cancel: add_mods\n"); - tap_count = 0; + // ad hoc: set 0 to cancel tap + record->tap_count = 0; add_mods(tmp_mods); } else { debug("MODS_TAP: Tap: register_code\n"); @@ -300,7 +349,7 @@ static void process(keyevent_t event) add_mods(tmp_mods); } } else { - if (IS_TAPPING(event.key) && tap_count > 0) { + if (IS_TAPPING_KEY(event.key) && tap_count > 0) { debug("MODS_TAP: Tap: unregister_code\n"); unregister_code(action.key.code); } else { @@ -367,7 +416,7 @@ static void process(keyevent_t event) default: // with tap key if (event.pressed) { - if (IS_TAPPING(event.key)) { + if (IS_TAPPING_KEY(event.key)) { if (tap_count > 0) { debug("LAYER_PRESSED: Tap: register_code\n"); register_code(action.layer.code); @@ -381,7 +430,7 @@ static void process(keyevent_t event) layer_switch(action.layer.opt); } /* - if (IS_TAPPING(event.key) && tap_count > 0) { + if (IS_TAPPING_KEY(event.key) && tap_count > 0) { debug("LAYER_PRESSED: Tap: register_code\n"); register_code(action.layer.code); } else { @@ -390,7 +439,7 @@ static void process(keyevent_t event) } */ } else { - if (IS_TAPPING(event.key) && tap_count > 0) { + if (IS_TAPPING_KEY(event.key) && tap_count > 0) { debug("LAYER_PRESSED: Tap: unregister_code\n"); unregister_code(action.layer.code); } else { @@ -446,7 +495,7 @@ static void process(keyevent_t event) default: // with tap key if (event.pressed) { - if (IS_TAPPING(event.key) && tap_count > 0) { + if (IS_TAPPING_KEY(event.key) && tap_count > 0) { debug("LAYER_BIT: Tap: register_code\n"); register_code(action.layer.code); } else { @@ -454,7 +503,7 @@ static void process(keyevent_t event) layer_switch(current_layer | action.layer.opt); } } else { - if (IS_TAPPING(event.key) && tap_count > 0) { + if (IS_TAPPING_KEY(event.key) && tap_count > 0) { debug("LAYER_BIT: Tap: unregister_code\n"); unregister_code(action.layer.code); } else { @@ -622,9 +671,9 @@ void layer_switch(uint8_t new_layer) } } -bool is_tap_key(keyevent_t event) +bool is_tap_key(key_t key) { - action_t action = keymap_get_action(current_layer, event.key.pos.row, event.key.pos.col); + action_t action = keymap_get_action(current_layer, key.pos.row, key.pos.col); switch (action.kind.id) { case ACT_LMODS_TAP: case ACT_RMODS_TAP: diff --git a/common/action.h b/common/action.h index 9aa1d78e..327a009e 100644 --- a/common/action.h +++ b/common/action.h @@ -19,7 +19,7 @@ void clear_keyboard(void); void clear_keyboard_but_mods(void); bool sending_anykey(void); void layer_switch(uint8_t new_layer); -bool is_tap_key(keyevent_t event); +bool is_tap_key(key_t key); @@ -197,11 +197,9 @@ enum stroke_cmd { STROKE_ALLUP, /* release all keys in reverse order */ }; -// TODO: not needed? typedef struct { keyevent_t event; - action_t action; - uint8_t mods; + uint8_t tap_count; } keyrecord_t; /* action function */ diff --git a/common/keyboard.c b/common/keyboard.c index 1aff81f5..2422fb75 100644 --- a/common/keyboard.c +++ b/common/keyboard.c @@ -80,7 +80,7 @@ void keyboard_task(void) action_exec((keyevent_t){ .key.pos = (keypos_t){ .row = r, .col = c }, .pressed = (matrix_row & (1<