456 lines
15 KiB
C
456 lines
15 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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#define Kdebug(s) do { if (debug_keyboard) debug(s); } while(0)
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#define Kdebug_P(s) do { if (debug_keyboard) debug_P(s); } while(0)
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#define Kdebug_hex(s) do { if (debug_keyboard) debug_hex(s); } while(0)
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/*
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*
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* Event/State|IDLE PRESSING DELAYING[f] WAITING[f,k]
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* -----------+------------------------------------------------------------------
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* Fn Down |(L+) -*1 WAITING(Sk) IDLE(Rf,Ps)*7
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* Up |(L-) IDLE(L-)*8 IDLE(L-)*8 IDLE(L-)*8
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* Fnk Down |DELAYING(Sf)* (Rf) WAITING(Sk) IDLE(Rf,Ps,Rf)
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* Up |(L-) IDLE(L-/Uf)*8 IDLE(Rf,Uf/L-)*3 IDLE(Rf,Ps,Uf/L-)*3
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* Key Down |PRESSING(Rk) (Rk) WAITING(Sk) IDLE(Rf,Ps,Rk)
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* Up |(Uk) IDLE(Uk)*4 (Uk) IDLE(L+,Ps,Pk)/(Uk)*a
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* |
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* Delay |- - IDLE(L+) IDLE(L+,Ps)
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* Magic Key |COMMAND*5
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*
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* *1: ignore Fn if other key is down.
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* *2: register Fnk if any key is pressing
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* *3: register/unregister delayed Fnk and move to IDLE if code == delayed Fnk, else *8
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* *4: if no keys registered to host
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* *5: unregister all keys
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* *6: only if no keys down
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* *7: ignore Fn because Fnk key and stored key are down.
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* *8: move to IDLE if layer switch(off) occurs, else stay at current state
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* *9: repeat key if pressing Fnk twice quickly(move to PRESSING)
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* *a: layer switch and process waiting key and code if code == wainting key, else unregister key
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*
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* States:
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* IDLE: No key is down except modifiers
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* DELAYING: delay layer switch after pressing Fn with alt keycode
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* WAITING: key is pressed during DELAYING
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*
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* Events:
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* Fn: Fn key without alternative keycode
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* Fnk: Fn key with alternative keycode
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* -: ignore
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* Delay: layer switch delay term is elapsed
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*
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* Actions:
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* Rk: register key
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* Uk: unregister key
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* Rf: register Fn(alt keycode)
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* Uf: unregister Fn(alt keycode)
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* Rs: register stored key
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* Us: unregister stored key
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* Sk: Store key(waiting Key)
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* Sf: Store Fn(delayed Fn)
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* Ps: Process stored key
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* Ps: Process key
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* Is: Interpret stored keys in current layer
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* L+: Switch to new layer(*unregister* all keys but modifiers)
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* L-: Switch back to last layer(*unregister* all keys but modifiers)
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* Ld: Switch back to default layer(*unregister* all keys but modifiers)
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*/
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typedef enum { IDLE, DELAYING, WAITING, PRESSING } kbdstate_t;
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#define NEXT(state) do { \
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Kdebug("NEXT: "); Kdebug_P(state_str(kbdstate)); \
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kbdstate = state; \
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Kdebug(" -> "); Kdebug_P(state_str(kbdstate)); Kdebug("\n"); \
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} while (0)
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static kbdstate_t kbdstate = IDLE;
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static uint8_t fn_state_bits = 0;
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static const char *state_str(kbdstate_t state)
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{
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if (state == IDLE) return PSTR("IDLE");
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if (state == DELAYING) return PSTR("DELAYING");
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if (state == WAITING) return PSTR("WAITING");
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if (state == PRESSING) return PSTR("PRESSING");
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return PSTR("UNKNOWN");
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}
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static bool anykey_sent_to_host(void)
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{
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return (host_has_anykey() || host_mouse_in_use() ||
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host_last_sysytem_report() || host_last_consumer_report());
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}
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static void register_code(uint8_t code);
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static void unregister_code(uint8_t code);
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static void register_mods(uint8_t mods);
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static void unregister_mods(uint8_t mods);
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static void clear_keyboard(void);
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static void clear_keyboard_but_mods(void);
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static void layer_switch(uint8_t new_layer);
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/* tap */
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#define TAP_TIME 200
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#define LAYER_DELAY 200
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static keyevent_t last_event = {};
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static uint16_t last_event_time = 0;
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static uint8_t tap_count = 0;
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/* layer */
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uint8_t default_layer = 0;
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uint8_t current_layer = 0;
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keyrecord_t delaying_layer = {};
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void action_exec(keyevent_t event)
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{
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/* count tap when key is up */
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if (KEYEQ(event.key, last_event.key) && timer_elapsed(last_event_time) < TAP_TIME) {
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if (!event.pressed) tap_count++;
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} else {
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tap_count = 0;
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}
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/* layer switch after LAYER_DELAY */
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if (delaying_layer.action.code && timer_elapsed(delaying_layer.event.time) > LAYER_DELAY) {
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switch (delaying_layer.action.kind.id) {
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case ACT_LAYER_PRESSED:
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layer_switch(delaying_layer.action.layer.opt);
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break;
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case ACT_LAYER_BIT:
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layer_switch(current_layer | delaying_layer.action.layer.opt);
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break;
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}
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delaying_layer = (keyrecord_t){};
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}
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action_t action = keymap_get_action(current_layer, event.key.row, event.key.col);
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debug("action: "); debug_hex16(action.code); debug("\n");
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debug("kind.id: "); debug_hex(action.kind.id); debug("\n");
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debug("kind.param: "); debug_hex16(action.kind.param); debug("\n");
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debug("key.code: "); debug_hex(action.key.code); debug("\n");
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debug("key.mods: "); debug_hex(action.key.mods); debug("\n");
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switch (action.kind.id) {
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case ACT_LMODS:
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// normal key or key plus mods
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if (event.pressed) {
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register_mods(action.key.mods);
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register_code(action.key.code);
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} else {
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unregister_code(action.key.code);
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unregister_mods(action.key.mods);
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}
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break;
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case ACT_RMODS:
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if (event.pressed) {
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register_mods(action.key.mods<<4);
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register_code(action.key.code);
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} else {
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unregister_code(action.key.code);
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unregister_mods(action.key.mods<<4);
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}
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break;
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case ACT_LMOD_TAP:
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break;
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case ACT_RMOD_TAP:
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break;
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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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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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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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debug("tap: "); debug_hex(tap_count); debug("\n");
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if (event.pressed) {
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if (tap_count == 0) {
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if (host_has_anykey()) {
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register_code(action.layer.code);
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} else {
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delaying_layer = (keyrecord_t){
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.event = event,
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.action = action,
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.mods = keyboard_report->mods
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};
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}
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} else if (tap_count > 0) {
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register_code(action.layer.code);
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}
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} else {
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// type key after tap
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if (tap_count == 1) {
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delaying_layer = (keyrecord_t){};
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register_code(action.layer.code);
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}
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unregister_code(action.layer.code);
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}
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break;
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}
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break;
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case ACT_LAYER_RELEASED:
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switch (action.layer.code) {
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case 0x00:
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if (event.pressed) {
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layer_switch(action.layer.opt);
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}
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break;
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case 0xF0:
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// Ignored. LAYER_RELEASED with tap toggle is invalid action.
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break;
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case 0xFF:
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if (!event.pressed) {
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default_layer = action.layer.opt;
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layer_switch(default_layer);
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}
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break;
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default:
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// Ignored. LAYER_RELEASED with tap key is invalid action.
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break;
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}
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break;
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case ACT_LAYER_BIT:
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switch (action.layer.code) {
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case 0x00:
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if (event.pressed) {
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layer_switch(current_layer | action.layer.opt);
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} else {
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layer_switch(current_layer & ~action.layer.opt);
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}
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break;
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case 0xF0:
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// TODO: tap toggle
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break;
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case 0xFF:
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// change default layer
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if (event.pressed) {
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default_layer = current_layer | action.layer.opt;
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layer_switch(default_layer);
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} else {
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default_layer = current_layer & ~action.layer.opt;
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layer_switch(default_layer);
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}
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break;
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default:
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// with tap key
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debug("tap: "); debug_hex(tap_count); debug("\n");
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if (event.pressed) {
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if (tap_count == 0) {
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if (host_has_anykey()) {
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register_code(action.layer.code);
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} else {
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delaying_layer = (keyrecord_t){
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.event = event,
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.action = action,
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.mods = keyboard_report->mods
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};
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}
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} else if (tap_count > 0) {
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register_code(action.layer.code);
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}
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} else {
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if (tap_count == 0) {
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// no tap
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layer_switch(current_layer & ~action.layer.opt);
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} else if (tap_count == 1) {
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// tap
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register_code(action.layer.code);
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}
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unregister_code(action.layer.code);
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}
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break;
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}
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case ACT_LAYER_EXT:
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switch (action.layer.opt) {
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case 0x00:
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// set default layer when pressed
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switch (action.layer.code) {
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case 0x00:
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if (event.pressed) {
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layer_switch(default_layer);
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}
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break;
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case 0xF0:
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// TODO: tap toggle
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break;
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case 0xFF:
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if (event.pressed) {
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default_layer = current_layer;
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layer_switch(default_layer);
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}
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break;
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default:
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// TODO: tap key
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break;
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}
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break;
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case 0x01:
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// set default layer when released
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switch (action.layer.code) {
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case 0x00:
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if (!event.pressed) {
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layer_switch(default_layer);
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}
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break;
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case 0xFF:
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if (!event.pressed) {
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default_layer = current_layer;
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layer_switch(default_layer);
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}
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break;
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case 0xF0:
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default:
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// Ignore tap.
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if (!event.pressed) {
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layer_switch(default_layer);
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}
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break;
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}
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break;
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}
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break;
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case ACT_MACRO:
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case ACT_COMMAND:
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case ACT_FUNCTION:
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default:
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break;
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}
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/* last event */
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last_event = event;
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last_event_time = timer_read();
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}
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static void register_code(uint8_t code)
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{
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if (code == KC_NO) {
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return;
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}
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else if IS_KEY(code) {
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// TODO: should push command_proc out of this block?
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if (!command_proc(code)) {
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host_add_key(code);
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host_send_keyboard_report();
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}
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}
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else if IS_MOD(code) {
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host_add_mods(MOD_BIT(code));
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host_send_keyboard_report();
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}
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}
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static void unregister_code(uint8_t code)
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{
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if IS_KEY(code) {
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host_del_key(code);
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host_send_keyboard_report();
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}
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else if IS_MOD(code) {
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host_del_mods(MOD_BIT(code));
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host_send_keyboard_report();
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}
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}
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static void register_mods(uint8_t mods)
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{
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if (!mods) return;
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host_add_mods(mods);
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host_send_keyboard_report();
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}
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static void unregister_mods(uint8_t mods)
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{
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if (!mods) return;
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host_del_mods(mods);
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host_send_keyboard_report();
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}
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static void clear_keyboard(void)
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{
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host_clear_mods();
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clear_keyboard_but_mods();
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}
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static void clear_keyboard_but_mods(void)
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{
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host_clear_keys();
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host_send_keyboard_report();
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#ifdef MOUSEKEY_ENABLE
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mousekey_clear();
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mousekey_send();
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#endif
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#ifdef EXTRAKEY_ENABLE
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host_system_send(0);
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host_consumer_send(0);
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#endif
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}
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static void layer_switch(uint8_t new_layer)
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{
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if (current_layer != new_layer) {
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Kdebug("Layer Switch: "); Kdebug_hex(current_layer);
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Kdebug(" -> "); Kdebug_hex(new_layer); Kdebug("\n");
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current_layer = new_layer;
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clear_keyboard_but_mods(); // To avoid stuck keys
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}
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}
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