#include "layer.h"
/*
- * LAYER_ENTER_DELAY: prevent from moving new layer
- * press release
- * Fn key sate ____|~~~~~~~~~~~~~~~~~~~|_______________
- *
- * enter_delay |======|
- * new layer
- * Layer sw ___________|~~~~~~~~~~~~|_______________
- */
+ * Parameters:
+ * enter_delay |=======|
+ * send_fn_term |================|
+ *
+ * Fn key processing cases:
+ * 1. release Fn after send_fn_term.
+ * Layer sw ___________|~~~~~~~~~~~|___
+ * Fn press ___|~~~~~~~~~~~~~~~~~~~|___
+ * Fn send ___________________________
+ *
+ * 2. release Fn in send_fn_term.(not layer used)
+ * Layer sw ___________|~~~~~~|________
+ * Fn press ___|~~~~~~~~~~~~~~|________
+ * Fn key send __________________|~|______
+ * other key press ___________________________
+ * other key send ___________________________
+ *
+ * 3. release Fn in send_fn_term.(layer used)
+ * Layer sw ___________|~~~~~~|________
+ * Fn press ___|~~~~~~~~~~~~~~|________
+ * Fn key send ___________________________
+ * Fn send ___________________________
+ * other key press _____________|~~|__________
+ * other key send _____________|~~|__________
+ *
+ * 4. press other key in ENTER_DELAY.
+ * Layer sw ___________________________
+ * Fn key press ___|~~~~~~~~~|_____________
+ * Fn key send ______|~~~~~~|_____________
+ * other key press ______|~~~|________________
+ * other key send _______|~~|________________
+ *
+ * 5. press Fn while press other key.
+ * Layer sw ___________________________
+ * Fn key press ___|~~~~~~~~~|_____________
+ * Fn key send ___|~~~~~~~~~|_____________
+ * other key press ~~~~~~~|___________________
+ * other key send ~~~~~~~|___________________
+ */
+
+// LAYER_ENTER_DELAY: prevent from moving new layer
#define LAYER_ENTER_DELAY 10
-/*
- * LAYER_SEND_FN_TERM: send keycode if release key in this term
- * press release(send)
- * Fn key state ____|~~~~~~~~~~~~~|_______________
- * press | release(not send)
- * Fn key state ____|~~~~~~~~~~~~~|~~~~~~|__________
- * | |
- * send_fn_term |=============o==| x
- */
-#define LAYER_SEND_FN_TERM 30
+// LAYER_SEND_FN_TERM: send keycode if release key in this term
+#define LAYER_SEND_FN_TERM 40
static uint8_t current_layer = 0;
{
uint8_t code = keymap_get_keycode(current_layer, row, col);
// normal key or mouse key
- if ((IS_KEY(code) || IS_MOUSE(code)))
+ if ((IS_KEY(code) || IS_MOUSE(code))) {
layer_used = true;
+ }
return code;
}
void layer_switching(uint8_t fn_bits)
{
// layer switching
+ static uint8_t new_layer = 0;
static uint8_t last_bits = 0;
- static uint8_t last_mod = 0;
+ static uint8_t last_mods = 0;
static uint16_t last_timer = 0;
- //uint16_t now_timer;
-
- if (fn_bits == last_bits) {
- // switch layer when specific time elapsed
- if (current_layer != keymap_fn_layer(fn_bits) &&
- timer_elapsed(last_timer) > LAYER_ENTER_DELAY) {
- current_layer = keymap_fn_layer(fn_bits);
- debug("time_elapsed: "); debug_hex16(timer_elapsed(last_timer)); debug("\n");
- debug("switch layer: "); debug_hex(current_layer); debug("\n");
+ if (fn_bits == last_bits) { // Fn key is not changed
+ if (current_layer != new_layer) {
+ // not switch layer yet
+ if (timer_elapsed(last_timer) > LAYER_ENTER_DELAY) {
+ debug("Fn case: 1,2,3(switch layer)\n");
+ // case: 1,2,3
+ // switch layer after LAYER_ENTER_DELAY elapse
+ current_layer = new_layer;
+ debug("timer_elapsed: "); debug_hex16(timer_elapsed(last_timer)); debug("\n");
+ debug("switch layer: "); debug_hex(current_layer); debug("\n");
+ } else if (usb_keyboard_has_key()) {
+ debug("Fn case: 4(send Fn first, then add Fn to report)\n");
+ // case: 4
+ // send only Fn key first
+ usb_keyboard_swap_report();
+ usb_keyboard_clear_report();
+ usb_keyboard_add_code(keymap_fn_keycode(last_bits));
+ usb_keyboard_set_mods(last_mods);
+ usb_keyboard_send();
+ usb_keyboard_swap_report();
+ // add Fn key to send with other keys
+ usb_keyboard_add_code(keymap_fn_keycode(last_bits));
+ // cancel layer switching
+ new_layer = 0;
+ }
+ } else {
+ if (fn_bits && new_layer == 0) {
+ // case: 4,5
+ // send Fn key
+ usb_keyboard_add_code(keymap_fn_keycode(last_bits));
+ }
}
- } else if (fn_bits == 0) {
- // send key when Fn key is released without using the layer and within specific time
- if ((!layer_used || current_layer != keymap_fn_layer(last_bits)) &&
- timer_elapsed(last_timer) < LAYER_SEND_FN_TERM) {
- uint8_t code = keymap_fn_keycode(last_bits);
- if (code != KB_NO) {
- if (IS_MOD(code)) {
- keyboard_modifier_keys = last_mod | MOD_BIT(code);
- } else {
- keyboard_keys[0] = code;
- keyboard_modifier_keys = last_mod;
- }
+ } else { // Fn key is changed
+ if (fn_bits == 0) { // Fn key is released(falling edge)
+ if (!layer_used && timer_elapsed(last_timer) < LAYER_SEND_FN_TERM) {
+ debug("Fn case: 2(send Fn)\n");
+ // send Fn key (case: 2[no layer used],3)
+ usb_keyboard_swap_report();
+ usb_keyboard_clear_report();
+ usb_keyboard_add_code(keymap_fn_keycode(last_bits));
+ usb_keyboard_set_mods(last_mods);
usb_keyboard_send();
- usb_keyboard_print();
- usb_keyboard_clear();
+ usb_keyboard_swap_report();
+ }
+ debug("Fn case: 1,2,3,4,5(return to default layer)\n");
+ // return to default layer(case: 1,2,3,4,5)
+ new_layer = 0;
+ current_layer = 0;
+ } else { // Fn Key is pressed(rising edge)
+ if (!usb_keyboard_has_key()) {
+ debug("Fn case: 1,2,3,4(ready for switching layer)\n");
+ // ready for switching layer(case: 1,2,3,4)
+ new_layer = keymap_fn_layer(fn_bits);
+ } else {
+ debug("Fn case: 5(add Fn to report)\n");
+ // add Fn key to send with other keys(case: 5)
+ usb_keyboard_add_code(keymap_fn_keycode(fn_bits));
}
}
- last_bits = 0;
- last_mod = 0;
layer_used = false;
- current_layer = 0; // default layer
- } else if ((fn_bits & (fn_bits - 1)) == 0) {
- // switch layer when just one Fn Key is pressed
- if (!usb_keyboard_has_key()) {
- last_bits = fn_bits;
- last_mod = keyboard_modifier_keys;
- last_timer = timer_read();
- debug("last_bits: "); debug_bin(last_bits); debug("\n");
- debug("last_mod: "); debug_hex(last_mod); debug("\n");
- debug("last_timer: "); debug_hex16(last_timer); debug("\n");
- }
+ last_bits = fn_bits;
+ last_mods = usb_keyboard_mods;
+ last_timer = timer_read();
+ debug("new_layer: "); debug_hex(new_layer); debug("\n");
+ debug("last_bits: "); debug_bin(last_bits); debug("\n");
+ debug("last_mods: "); debug_hex(last_mods); debug("\n");
+ debug("last_timer: "); debug_hex16(last_timer); debug("\n");
}
}
projects / max / tmk_keyboard.git / blobdiff