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qmk_firmware/common/action.c

476 lines
14 KiB
C

#include "host.h"
#include "timer.h"
//#include "keymap.h"
#include "keycode.h"
#include "keyboard.h"
#include "mousekey.h"
#include "command.h"
#include "util.h"
#include "debug.h"
#include "action.h"
#define Kdebug(s) do { if (debug_keyboard) debug(s); } while(0)
#define Kdebug_P(s) do { if (debug_keyboard) debug_P(s); } while(0)
#define Kdebug_hex(s) do { if (debug_keyboard) debug_hex(s); } while(0)
/*
*
* Event/State|IDLE PRESSING DELAYING[f] WAITING[f,k]
* -----------+------------------------------------------------------------------
* Fn Down |(L+) -*1 WAITING(Sk) IDLE(Rf,Ps)*7
* Up |(L-) IDLE(L-)*8 IDLE(L-)*8 IDLE(L-)*8
* Fnk Down |DELAYING(Sf)* (Rf) WAITING(Sk) IDLE(Rf,Ps,Rf)
* Up |(L-) IDLE(L-/Uf)*8 IDLE(Rf,Uf/L-)*3 IDLE(Rf,Ps,Uf/L-)*3
* Key Down |PRESSING(Rk) (Rk) WAITING(Sk) IDLE(Rf,Ps,Rk)
* Up |(Uk) IDLE(Uk)*4 (Uk) IDLE(L+,Ps,Pk)/(Uk)*a
* |
* Delay |- - IDLE(L+) IDLE(L+,Ps)
* Magic Key |COMMAND*5
*
* *1: ignore Fn if other key is down.
* *2: register Fnk if any key is pressing
* *3: register/unregister delayed Fnk and move to IDLE if code == delayed Fnk, else *8
* *4: if no keys registered to host
* *5: unregister all keys
* *6: only if no keys down
* *7: ignore Fn because Fnk key and stored key are down.
* *8: move to IDLE if layer switch(off) occurs, else stay at current state
* *9: repeat key if pressing Fnk twice quickly(move to PRESSING)
* *a: layer switch and process waiting key and code if code == wainting key, else unregister key
*
* States:
* IDLE: No key is down except modifiers
* DELAYING: delay layer switch after pressing Fn with alt keycode
* WAITING: key is pressed during DELAYING
*
* Events:
* Fn: Fn key without alternative keycode
* Fnk: Fn key with alternative keycode
* -: ignore
* Delay: layer switch delay term is elapsed
*
* Actions:
* Rk: register key
* Uk: unregister key
* Rf: register Fn(alt keycode)
* Uf: unregister Fn(alt keycode)
* Rs: register stored key
* Us: unregister stored key
* Sk: Store key(waiting Key)
* Sf: Store Fn(delayed Fn)
* Ps: Process stored key
* Ps: Process key
* Is: Interpret stored keys in current layer
* L+: Switch to new layer(*unregister* all keys but modifiers)
* L-: Switch back to last layer(*unregister* all keys but modifiers)
* Ld: Switch back to default layer(*unregister* all keys but modifiers)
*/
typedef enum { IDLE, DELAYING, WAITING, PRESSING } kbdstate_t;
#define NEXT(state) do { \
Kdebug("NEXT: "); Kdebug_P(state_str(kbdstate)); \
kbdstate = state; \
Kdebug(" -> "); Kdebug_P(state_str(kbdstate)); Kdebug("\n"); \
} while (0)
static kbdstate_t kbdstate = IDLE;
static uint8_t fn_state_bits = 0;
static keyrecord_t delayed_fn = {};
static keyrecord_t waiting_key = {};
static const char *state_str(kbdstate_t state)
{
if (state == IDLE) return PSTR("IDLE");
if (state == DELAYING) return PSTR("DELAYING");
if (state == WAITING) return PSTR("WAITING");
if (state == PRESSING) return PSTR("PRESSING");
return PSTR("UNKNOWN");
}
static bool anykey_sent_to_host(void)
{
return (host_has_anykey() || host_mouse_in_use() ||
host_last_sysytem_report() || host_last_consumer_report());
}
/*
static void layer_switch_on(uint8_t code);
static void layer_switch_off(uint8_t code);
static void key_action(uint8_t code, keyevent_t event);
static void key_pressed(uint8_t code, keyevent_t event);
static void key_released(uint8_t code, keyevent_t event);
static void mod_pressed(uint8_t code, keyevent_t event);
static void mod_released(uint8_t code, keyevent_t event);
*/
static void register_code(uint8_t code);
static void unregister_code(uint8_t code);
static void register_mods(uint8_t mods);
static void unregister_mods(uint8_t mods);
static void clear_keyboard(void);
static void clear_keyboard_but_mods(void);
static void layer_switch(uint8_t new_layer);
/* tap */
#define TAP_TIME 200
static keyevent_t last_event = {};
static uint16_t last_event_time = 0;
static uint8_t tap_count = 0;
/* layer */
uint8_t default_layer = 0;
uint8_t current_layer = 0;
uint8_t waiting_layer = 0;
void action_exec(action_t action, keyevent_t event)
{
/* count tap when key is up */
if (KEYEQ(event.key, last_event.key) && timer_elapsed(last_event_time) < TAP_TIME) {
if (!event.pressed) tap_count++;
} else {
tap_count = 0;
}
debug("action: "); debug_hex16(action.code); debug("\n");
debug("kind.id: "); debug_hex(action.kind.id); debug("\n");
debug("kind.param: "); debug_hex16(action.kind.param); debug("\n");
debug("key.code: "); debug_hex(action.key.code); debug("\n");
debug("key.mods: "); debug_hex(action.key.mods); debug("\n");
switch (action.kind.id) {
case ACT_LMODS:
if (event.pressed) {
register_mods(action.key.mods);
register_code(action.key.code);
} else {
unregister_code(action.key.code);
unregister_mods(action.key.mods);
}
break;
case ACT_RMODS:
if (event.pressed) {
register_mods(action.key.mods<<4);
register_code(action.key.code);
} else {
unregister_code(action.key.code);
unregister_mods(action.key.mods<<4);
}
break;
case ACT_LAYER:
switch (action.layer_key.code) {
case 0x00: // Momentary switch
// TODO: history of layer switch
if (event.pressed) {
layer_switch(action.layer_key.layer);
} else {
layer_switch(default_layer);
}
break;
case 0x01: // Oneshot switch
// TODO:
break;
case 0x02: // reserved
case 0x03: // reserved
break;
case 0xF0 ... 0xF7: // Tap to enable/disable
case 0xF8 ... 0xFF: // Tap to toggle layer
// TODO:
break;
default: // with keycode for tap
debug("tap: "); debug_hex(tap_count); debug("\n");
// TODO: layer switch
// TODO: in case tap is interrupted by other key
if (event.pressed) {
// when any key down
if (host_has_anykey()) {
if (tap_count == 0)
register_code(action.layer_key.code);
} else {
}
if (tap_count == 0) {
if (host_has_anykey()) {
register_code(action.layer_key.code);
} else {
waiting_layer = action.layer_key.layer;
}
}
// register key when press after a tap
if (tap_count > 0) {
register_code(action.layer_key.code);
}
} else {
// type key after tap
if (tap_count == 1) {
register_code(action.layer_key.code);
}
unregister_code(action.layer_key.code);
}
break;
}
break;
case ACT_USAGE:
#ifdef EXTRAKEY_ENABLE
switch (action.usage.page) {
case ACTION_USAGE_PAGE_SYSTEM:
if (event.pressed) {
host_system_send(action.usage.code);
} else {
host_system_send(0);
}
break;
case ACTION_USAGE_PAGE_CONSUMER:
if (event.pressed) {
host_consumer_send(action.usage.code);
} else {
host_consumer_send(0);
}
break;
}
#endif
break;
case ACT_MOUSEKEY:
#ifdef MOUSEKEY_ENABLE
if (event.pressed) {
mousekey_on(action.key.code);
mousekey_send();
} else {
mousekey_off(action.key.code);
mousekey_send();
}
#endif
break;
case ACT_LMOD_TAP:
case ACT_RMOD_TAP:
case ACT_MACRO:
case ACT_COMMAND:
case ACT_FUNCTION:
default:
break;
}
/* last event */
last_event = event;
last_event_time = timer_read();
}
#if 0
/* Key Action */
inline
static void key_action(uint8_t code, keyevent_t event)
{
if (event.pressed)
key_pressed(code, event);
else
key_released(code, event);
}
void fn_action(uint8_t code, keyevent_t event)
{
}
/* Key */
inline static void key_pressed(uint8_t code, keyevent_t event)
{
uint8_t tmp_mods;
switch (kbdstate) {
case IDLE:
register_code(code);
NEXT(PRESSING);
break;
case PRESSING:
register_code(code);
break;
case DELAYING:
waiting_key = (keyrecord_t) {
.event = event,
.code = code,
.mods = keyboard_report->mods,
.time = timer_read()
};
NEXT(WAITING);
break;
case WAITING:
// play back key stroke
tmp_mods = keyboard_report->mods;
host_set_mods(delayed_fn.mods);
register_code(delayed_fn.code);
host_set_mods(waiting_key.mods);
register_code(waiting_key.code);
host_set_mods(tmp_mods);
register_code(code);
NEXT(IDLE);
break;
}
}
inline static void key_released(uint8_t code, keyevent_t event)
{
uint8_t tmp_mods;
switch (kbdstate) {
case IDLE:
unregister_code(code);
break;
case PRESSING:
unregister_code(code);
if (!anykey_sent_to_host())
NEXT(IDLE);
break;
case DELAYING:
unregister_code(code);
break;
case WAITING:
if (code == waiting_key.code) {
layer_switch_on(delayed_fn.code);
NEXT(IDLE);
// process waiting_key
tmp_mods = keyboard_report->mods;
host_set_mods(waiting_key.mods);
keymap_process_event(waiting_key.event);
host_set_mods(tmp_mods);
keymap_process_event(event);
} else {
unregister_code(code);
}
break;
}
}
/* layer switch momentary */
inline static void layerkey_pressed(uint8_t code, keyevent_t event)
{
uint8_t tmp_mods;
switch (kbdstate) {
case IDLE:
layer_switch_on(code);
break;
case PRESSING:
// ignore
break;
case DELAYING:
waiting_key = (keyrecord_t) {
.event = event,
.code = code,
.mods = keyboard_report->mods,
.time = timer_read()
};
NEXT(WAITING);
break;
case WAITING:
tmp_mods = keyboard_report->mods;
host_set_mods(delayed_fn.mods);
register_code(delayed_fn.code);
host_set_mods(waiting_key.mods);
register_code(waiting_key.code);
host_set_mods(tmp_mods);
if (kind == FN_DOWN) {
// ignore Fn
} else if (kind == FNK_DOWN) {
register_code(code);
} else if (kind == KEY_DOWN) {
register_code(code);
}
NEXT(IDLE);
break;
}
}
inline static void layerkey_released(uint8_t code, keyevent_t event)
{
switch (kbdstate) {
case IDLE:
layer_switch_off(code);
break;
case PRESSING:
case DELAYING:
case WAITING:
if (layer_switch_off(code))
NEXT(IDLE);
break;
}
}
#endif
static void register_code(uint8_t code)
{
if (code == KC_NO) {
return;
}
else if IS_KEY(code) {
// TODO: should push command_proc out of this block?
if (!command_proc(code)) {
host_add_key(code);
host_send_keyboard_report();
}
}
else if IS_MOD(code) {
host_add_mods(MOD_BIT(code));
host_send_keyboard_report();
}
}
static void unregister_code(uint8_t code)
{
if IS_KEY(code) {
host_del_key(code);
host_send_keyboard_report();
}
else if IS_MOD(code) {
host_del_mods(MOD_BIT(code));
host_send_keyboard_report();
}
}
static void register_mods(uint8_t mods)
{
if (!mods) return;
host_add_mods(mods);
host_send_keyboard_report();
}
static void unregister_mods(uint8_t mods)
{
if (!mods) return;
host_del_mods(mods);
host_send_keyboard_report();
}
static void clear_keyboard(void)
{
host_clear_mods();
clear_keyboard_but_mods();
}
static void clear_keyboard_but_mods(void)
{
host_clear_keys();
host_send_keyboard_report();
#ifdef MOUSEKEY_ENABLE
mousekey_clear();
mousekey_send();
#endif
#ifdef EXTRAKEY_ENABLE
host_system_send(0);
host_consumer_send(0);
#endif
}
static void layer_switch(uint8_t new_layer)
{
if (current_layer != new_layer) {
Kdebug("Layer Switch: "); Kdebug_hex(current_layer);
Kdebug(" -> "); Kdebug_hex(new_layer); Kdebug("\n");
current_layer = new_layer;
clear_keyboard_but_mods(); // To avoid stuck keys
}
}