754 lines
26 KiB
C
754 lines
26 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(keyrecord_t *record);
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// TODO
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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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/* tap term(ms) */
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#define TAP_TERM 200
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/* This counts up when tap occurs */
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uint8_t tap_count = 0;
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keyevent_t tapping_event = {};
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keyrecord_t tapping_key = {};
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/* TAPPING: This indicates that whether tap or not is not decided yet. */
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// NOTE: keyevent_t.time 0 means no event.
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#define IS_TAPPING() (tapping_key.event.time != 0)
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#define IS_TAPPING_PRESSED() (IS_TAPPING() && tapping_key.event.pressed)
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#define IS_TAPPING_RELEASED() (IS_TAPPING() && !tapping_key.event.pressed)
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#define IS_TAPPING_KEY(k) (IS_TAPPING() && KEYEQ(tapping_key.event.key, (k)))
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#define WITHIN_TAP_TERM(e) (TIMER_DIFF_16(e.time, tapping_key.event.time) < TAP_TERM)
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/* waiting keys buffer */
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#define WAITING_BUFFER_SIZE 8
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static keyrecord_t waiting_buffer[WAITING_BUFFER_SIZE] = {};
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/* point to empty cell to enq */
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static uint8_t waiting_buffer_head = 0;
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/* point to the oldest data cell to deq */
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static uint8_t waiting_buffer_tail = 0;
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static bool waiting_buffer_enq(keyrecord_t record)
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{
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if (IS_NOEVENT(record.event)) {
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return true;
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}
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if ((waiting_buffer_head + 1) % WAITING_BUFFER_SIZE == waiting_buffer_tail) {
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debug("waiting_buffer_enq: Over flow.\n");
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return false;
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}
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debug("waiting_buffer_enq["); debug_dec(waiting_buffer_head); debug("] = ");
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debug_hex16(record.event.key.raw); debug("\n");
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waiting_buffer[waiting_buffer_head] = record;
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waiting_buffer_head = (waiting_buffer_head + 1) % WAITING_BUFFER_SIZE;
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return true;
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}
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static keyrecord_t waiting_buffer_deq(void)
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{
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if (waiting_buffer_head == waiting_buffer_tail) {
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return (keyrecord_t){};
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}
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uint8_t last_tail = waiting_buffer_tail;
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waiting_buffer_tail = waiting_buffer_tail + 1 % WAITING_BUFFER_SIZE;
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return waiting_buffer[last_tail];
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}
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static bool waiting_buffer_is_empty(void)
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{
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return (waiting_buffer_head == waiting_buffer_tail);
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}
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static void waiting_buffer_clear(void)
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{
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waiting_buffer_head = 0;
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waiting_buffer_tail = 0;
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}
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static bool waiting_buffer_typed(keyevent_t event)
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{
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for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
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if (KEYEQ(event.key, waiting_buffer[i].event.key) && event.pressed != waiting_buffer[i].event.pressed) {
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return true;
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}
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}
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return false;
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}
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static bool waiting_buffer_has_anykey_pressed(void)
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{
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for (uint8_t i = waiting_buffer_tail; i != waiting_buffer_head; i = (i + 1) % WAITING_BUFFER_SIZE) {
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if (waiting_buffer[i].event.pressed) return true;
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}
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return false;
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}
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static void waiting_buffer_process(void)
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{
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}
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/* Oneshot modifier
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*
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* Problem: Want to capitalize like 'The' but the result tends to be 'THe'.
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* Solution: Oneshot modifier have its effect on only one key coming next.
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* Tap Shift, then type 't', 'h' and 'e'. Not need to hold Shift key.
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*
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* Hold: works as normal modifier.
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* Tap: one shot modifier.
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* 2 Tap: cancel one shot modifier.
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* 5-Tap: toggles enable/disable oneshot feature.
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*/
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static struct {
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uint8_t mods;
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uint8_t time;
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bool ready;
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bool disabled;
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} oneshot_state;
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static void oneshot_start(uint8_t mods, uint16_t time)
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{
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oneshot_state.mods = mods;
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oneshot_state.time = time;
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oneshot_state.ready = true;
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}
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static void oneshot_cancel(void)
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{
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oneshot_state.mods = 0;
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oneshot_state.time = 0;
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oneshot_state.ready = false;
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}
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static void oneshot_toggle(void)
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{
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oneshot_state.disabled = !oneshot_state.disabled;
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}
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/*
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* Rule to judge tap:
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* Tap key is typed(pressed and released) within TAP_TERM
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* without interfaring by typing other key.
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*/
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/* return true when key event is processed. */
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static bool process_tap(keyrecord_t *keyp)
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{
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keyevent_t event = keyp->event;
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// if tapping
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if (IS_TAPPING_PRESSED()) {
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if (WITHIN_TAP_TERM(event)) {
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if (tapping_key.tap_count == 0) {
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if (IS_TAPPING_KEY(event.key) && !event.pressed) {
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// first tap!
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debug("Tapping: First tap.\n");
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tapping_key.tap_count = 1;
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process(&tapping_key);
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// enqueue
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keyp->tap_count = tapping_key.tap_count;
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return false;
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} else if (!event.pressed && waiting_buffer_typed(event)) {
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// other key typed. not tap.
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debug("Tapping: End(No tap. Interfered by typing key).\n");
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process(&tapping_key);
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tapping_key = (keyrecord_t){};
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// enqueue
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return false;
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} else {
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// other key events shall be stored till tapping state settles.
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return false;
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}
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} else {
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if (IS_TAPPING_KEY(event.key) && !event.pressed) {
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keyp->tap_count = tapping_key.tap_count;
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debug("Tapping: tap release("); debug_dec(keyp->tap_count); debug(")\n");
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tapping_key = *keyp;
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return false;
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}
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else if (is_tap_key(keyp->event.key) && event.pressed) {
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debug("Tapping: Start with forcing to release last tap.\n");
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process(&(keyrecord_t){
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.tap_count = tapping_key.tap_count,
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.event.key = tapping_key.event.key,
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.event.time = event.time,
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.event.pressed = false
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});
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tapping_key = *keyp;
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return false;
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}
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else {
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if (!IS_NOEVENT(keyp->event)) debug("Tapping: key event while tap.\n");
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process(keyp);
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return true;
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}
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}
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}
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// not within TAP_TERM
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else {
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if (tapping_key.tap_count == 0) {
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// timeout. not tap.
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debug("Tapping: End. Not tap(time out).\n");
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process(&tapping_key);
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tapping_key = (keyrecord_t){};
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return false;
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} else {
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if (IS_TAPPING_KEY(event.key) && !event.pressed) {
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debug("Tapping: End. tap release.");
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keyp->tap_count = tapping_key.tap_count;
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process(keyp);
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tapping_key = (keyrecord_t){};
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return true;
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} else {
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// other key after tap time out.
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process(keyp);
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return true;
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}
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}
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}
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} else if (IS_TAPPING_RELEASED()) {
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if (WITHIN_TAP_TERM(event)) {
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if (tapping_key.tap_count > 0 && IS_TAPPING_KEY(event.key) && event.pressed) {
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// sequential tap.
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keyp->tap_count = tapping_key.tap_count + 1;
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debug("Tapping: tap press("); debug_dec(keyp->tap_count); debug(")\n");
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process(keyp);
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tapping_key = *keyp;
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return true;
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} else if (event.pressed && is_tap_key(event.key)) {
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// Sequential tap can be interfered with other tap key.
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debug("Tapping: Start with interfering other tap.\n");
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tapping_key = *keyp;
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return true;
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} else {
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if (!IS_NOEVENT(keyp->event)) debug("Tapping: other key just after tap.\n");
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process(keyp);
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return true;
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}
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} else {
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// timeout. no sequential tap.
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debug("Tapping: End(Time out after releasing last tap).\n");
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tapping_key = (keyrecord_t){};
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process(keyp);
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return true;
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}
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} else {
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if (event.pressed && is_tap_key(event.key)) {
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debug("Tapping: Start(Press tap key).\n");
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tapping_key = *keyp;
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return true;
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} else {
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process(keyp);
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return true;
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}
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}
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}
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void action_exec(keyevent_t event)
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{
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if (!IS_NOEVENT(event)) {
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debug("event: ");
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debug_hex16(event.time); debug(": ");
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debug_hex16(event.key.raw);
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debug("[");
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if (event.pressed) debug("down"); else debug("up");
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debug("]\n");
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}
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keyrecord_t record = { .event = event };
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// pre-process on tapping
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if (process_tap(&record)) {
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if (!IS_NOEVENT(record.event)) debug("processed.\n");
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} else {
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if (!IS_NOEVENT(record.event)) debug("enqueued.\n");
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if (!waiting_buffer_enq(record)) {
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// clear all in case of overflow.
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clear_keyboard();
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waiting_buffer_clear();
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tapping_key = (keyrecord_t){};
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}
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}
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// TODO: need to process every time?
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// process waiting_buffer
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for (; waiting_buffer_tail != waiting_buffer_head; waiting_buffer_tail = (waiting_buffer_tail + 1) % WAITING_BUFFER_SIZE) {
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if (process_tap(&waiting_buffer[waiting_buffer_tail])) {
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debug("processed: waiting_buffer["); debug_dec(waiting_buffer_tail); debug("] = ");
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debug_hex16(waiting_buffer[waiting_buffer_tail].event.key.raw); debug("\n");
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} else {
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break;
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}
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}
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}
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static void process(keyrecord_t *record)
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{
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// TODO: use record
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keyevent_t event = record->event;
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uint8_t tap_count = record->tap_count;
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if (IS_NOEVENT(event)) { return; }
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action_t action = keymap_get_action(current_layer, event.key.pos.row, event.key.pos.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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case ACT_RMODS:
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{
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uint8_t mods = (action.kind.id == ACT_LMODS) ? action.key.mods :
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action.key.mods<<4;
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if (event.pressed) {
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uint8_t tmp_mods = host_get_mods();
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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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register_code(action.key.code);
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if (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 (mods && !action.key.code) {
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host_del_mods(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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}
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break;
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case ACT_LMODS_TAP:
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case ACT_RMODS_TAP:
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{
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uint8_t mods = (action.kind.id == ACT_LMODS_TAP) ? action.key.mods :
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action.key.mods<<4;
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switch (action.layer.code) {
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case 0x00:
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// Oneshot modifier
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if (event.pressed) {
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if (tap_count == 0) {
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debug("MODS_TAP: Oneshot: add_mods\n");
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add_mods(mods);
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}
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else if (tap_count == 1) {
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debug("MODS_TAP: Oneshot: start\n");
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oneshot_start(mods, event.time);
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}
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else if (tap_count == 5) {
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debug("MODS_TAP: Oneshot: toggle\n");
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oneshot_toggle();
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}
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else {
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debug("MODS_TAP: Oneshot: cancel&add_mods\n");
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// double tap cancels oneshot and works as normal modifier.
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oneshot_cancel();
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add_mods(mods);
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}
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} else {
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if (tap_count == 0) {
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debug("MODS_TAP: Oneshot: cancel/del_mods\n");
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// cancel oneshot by holding.
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oneshot_cancel();
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del_mods(mods);
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}
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else if (tap_count == 1) {
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debug("MODS_TAP: Oneshot: del_mods\n");
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// retain Oneshot
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del_mods(mods);
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}
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else {
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debug("MODS_TAP: Oneshot: del_mods\n");
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// cancel Mods
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del_mods(mods);
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}
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}
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break;
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default:
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if (event.pressed) {
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if (tap_count > 0) {
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if (waiting_buffer_has_anykey_pressed()) {
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debug("MODS_TAP: Tap: Cancel: add_mods\n");
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// ad hoc: set 0 to cancel tap
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record->tap_count = 0;
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add_mods(mods);
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} else {
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debug("MODS_TAP: Tap: register_code\n");
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register_code(action.key.code);
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}
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} else {
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debug("MODS_TAP: No tap: add_mods\n");
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add_mods(mods);
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}
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} else {
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if (tap_count > 0) {
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debug("MODS_TAP: Tap: unregister_code\n");
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unregister_code(action.key.code);
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} else {
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debug("MODS_TAP: No tap: add_mods\n");
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del_mods(mods);
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}
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}
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break;
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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 (IS_TAPPING_KEY(event.key)) {
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if (tap_count > 0) {
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debug("LAYER_PRESSED: Tap: register_code\n");
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register_code(action.layer.code);
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} else {
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debug("LAYER_PRESSED: No tap: layer_switch\n");
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layer_switch(action.layer.opt);
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}
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} else {
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// TODO: while other key tapping
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debug("LAYER_PRESSED: No tap: layer_switch\n");
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layer_switch(action.layer.opt);
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}
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/*
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if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
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debug("LAYER_PRESSED: Tap: register_code\n");
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register_code(action.layer.code);
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} else {
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debug("LAYER_PRESSED: No tap: layer_switch\n");
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layer_switch(action.layer.opt);
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}
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*/
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} else {
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if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
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debug("LAYER_PRESSED: Tap: unregister_code\n");
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unregister_code(action.layer.code);
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} else {
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debug("LAYER_PRESSED: No tap: NO ACTION\n");
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}
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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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|
}
|
|
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 (IS_TAPPING_KEY(event.key) && tap_count > 0) {
|
|
debug("LAYER_BIT: 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);
|
|
}
|
|
} else {
|
|
if (IS_TAPPING_KEY(event.key) && tap_count > 0) {
|
|
debug("LAYER_BIT: 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);
|
|
}
|
|
}
|
|
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:
|
|
break;
|
|
case ACT_COMMAND:
|
|
break;
|
|
case ACT_FUNCTION:
|
|
action_call_function(event, action.func.id);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Utilities for actions.
|
|
*/
|
|
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)) return;
|
|
|
|
if (oneshot_state.mods && oneshot_state.ready && !oneshot_state.disabled) {
|
|
uint8_t tmp_mods = host_get_mods();
|
|
host_add_mods(oneshot_state.mods);
|
|
host_add_key(code);
|
|
host_send_keyboard_report();
|
|
|
|
host_set_mods(tmp_mods);
|
|
oneshot_state.ready = false;
|
|
} else {
|
|
host_add_key(code);
|
|
host_send_keyboard_report();
|
|
}
|
|
}
|
|
else if IS_MOD(code) {
|
|
host_add_mods(MOD_BIT(code));
|
|
host_send_keyboard_report();
|
|
}
|
|
}
|
|
|
|
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();
|
|
}
|
|
}
|
|
|
|
void add_mods(uint8_t mods)
|
|
{
|
|
if (mods) {
|
|
host_add_mods(mods);
|
|
host_send_keyboard_report();
|
|
}
|
|
}
|
|
|
|
void del_mods(uint8_t mods)
|
|
{
|
|
if (mods) {
|
|
host_del_mods(mods);
|
|
host_send_keyboard_report();
|
|
}
|
|
}
|
|
|
|
void set_mods(uint8_t mods)
|
|
{
|
|
host_set_mods(mods);
|
|
host_send_keyboard_report();
|
|
}
|
|
|
|
void clear_keyboard(void)
|
|
{
|
|
host_clear_mods();
|
|
clear_keyboard_but_mods();
|
|
}
|
|
|
|
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
|
|
}
|
|
|
|
bool sending_anykey(void)
|
|
{
|
|
return (host_has_anykey() || host_mouse_in_use() ||
|
|
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
|
|
// TODO: 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);
|
|
switch (action.kind.id) {
|
|
case ACT_LMODS_TAP:
|
|
case ACT_RMODS_TAP:
|
|
return true;
|
|
case ACT_LAYER_PRESSED:
|
|
case ACT_LAYER_BIT:
|
|
switch (action.layer.code) {
|
|
case 0x00:
|
|
case 0xF1 ... 0xFF:
|
|
return false;
|
|
case 0xF0:
|
|
default:
|
|
return true;
|
|
}
|
|
return false;
|
|
case ACT_FUNCTION:
|
|
if (action.func.opt & 0x1) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|