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@ -5,26 +5,51 @@
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#include "layer.h"
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/*
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* LAYER_ENTER_DELAY: prevent from moving new layer
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* press release
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* Fn key sate ____|~~~~~~~~~~~~~~~~~~~|_______________
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* Parameters:
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* enter_delay |=======|
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* send_fn_term |================|
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*
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* enter_delay |======|
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* new layer
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* Layer sw ___________|~~~~~~~~~~~~|_______________
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* Fn key processing cases:
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* 1. release Fn after send_fn_term.
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* Layer sw ___________|~~~~~~~~~~~|___
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* Fn press ___|~~~~~~~~~~~~~~~~~~~|___
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* Fn send ___________________________
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*
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* 2. release Fn in send_fn_term.(not layer used)
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* Layer sw ___________|~~~~~~|________
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* Fn press ___|~~~~~~~~~~~~~~|________
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* Fn key send __________________|~|______
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* other key press ___________________________
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* other key send ___________________________
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*
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* 3. release Fn in send_fn_term.(layer used)
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* Layer sw ___________|~~~~~~|________
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* Fn press ___|~~~~~~~~~~~~~~|________
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* Fn key send ___________________________
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* Fn send ___________________________
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* other key press _____________|~~|__________
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* other key send _____________|~~|__________
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*
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* 4. press other key in ENTER_DELAY.
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* Layer sw ___________________________
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* Fn key press ___|~~~~~~~~~|_____________
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* Fn key send ______|~~~~~~|_____________
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* other key press ______|~~~|________________
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* other key send _______|~~|________________
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*
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* 5. press Fn while press other key.
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* Layer sw ___________________________
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* Fn key press ___|~~~~~~~~~|_____________
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* Fn key send ___|~~~~~~~~~|_____________
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* other key press ~~~~~~~|___________________
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* other key send ~~~~~~~|___________________
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*/
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// LAYER_ENTER_DELAY: prevent from moving new layer
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#define LAYER_ENTER_DELAY 10
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/*
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* LAYER_SEND_FN_TERM: send keycode if release key in this term
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* press release(send)
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* Fn key state ____|~~~~~~~~~~~~~|_______________
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* press | release(not send)
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* Fn key state ____|~~~~~~~~~~~~~|~~~~~~|__________
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* | |
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* send_fn_term |=============o==| x
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*/
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#define LAYER_SEND_FN_TERM 30
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// LAYER_SEND_FN_TERM: send keycode if release key in this term
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#define LAYER_SEND_FN_TERM 40
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static uint8_t current_layer = 0;
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@ -35,58 +60,86 @@ uint8_t layer_get_keycode(uint8_t row, uint8_t col)
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{
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uint8_t code = keymap_get_keycode(current_layer, row, col);
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// normal key or mouse key
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if ((IS_KEY(code) || IS_MOUSE(code)))
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if ((IS_KEY(code) || IS_MOUSE(code))) {
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layer_used = true;
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}
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return code;
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}
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void layer_switching(uint8_t fn_bits)
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{
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// layer switching
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static uint8_t new_layer = 0;
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static uint8_t last_bits = 0;
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static uint8_t last_mod = 0;
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static uint8_t last_mods = 0;
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static uint16_t last_timer = 0;
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//uint16_t now_timer;
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if (fn_bits == last_bits) {
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// switch layer when specific time elapsed
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if (current_layer != keymap_fn_layer(fn_bits) &&
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timer_elapsed(last_timer) > LAYER_ENTER_DELAY) {
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current_layer = keymap_fn_layer(fn_bits);
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debug("time_elapsed: "); debug_hex16(timer_elapsed(last_timer)); debug("\n");
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if (fn_bits == last_bits) { // Fn key is not changed
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if (current_layer != new_layer) {
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// not switch layer yet
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if (timer_elapsed(last_timer) > LAYER_ENTER_DELAY) {
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debug("Fn case: 1,2,3(switch layer)\n");
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// case: 1,2,3
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// switch layer after LAYER_ENTER_DELAY elapse
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current_layer = new_layer;
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debug("timer_elapsed: "); debug_hex16(timer_elapsed(last_timer)); debug("\n");
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debug("switch layer: "); debug_hex(current_layer); debug("\n");
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} else if (usb_keyboard_has_key()) {
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debug("Fn case: 4(send Fn first, then add Fn to report)\n");
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// case: 4
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// send only Fn key first
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usb_keyboard_swap_report();
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usb_keyboard_clear_report();
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usb_keyboard_add_code(keymap_fn_keycode(last_bits));
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usb_keyboard_set_mods(last_mods);
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usb_keyboard_send();
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usb_keyboard_swap_report();
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// add Fn key to send with other keys
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usb_keyboard_add_code(keymap_fn_keycode(last_bits));
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// cancel layer switching
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new_layer = 0;
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}
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} else if (fn_bits == 0) {
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// send key when Fn key is released without using the layer and within specific time
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if ((!layer_used || current_layer != keymap_fn_layer(last_bits)) &&
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timer_elapsed(last_timer) < LAYER_SEND_FN_TERM) {
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uint8_t code = keymap_fn_keycode(last_bits);
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if (code != KB_NO) {
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if (IS_MOD(code)) {
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keyboard_modifier_keys = last_mod | MOD_BIT(code);
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} else {
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keyboard_keys[0] = code;
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keyboard_modifier_keys = last_mod;
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if (fn_bits && new_layer == 0) {
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// case: 4,5
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// send Fn key
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usb_keyboard_add_code(keymap_fn_keycode(last_bits));
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}
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}
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} else { // Fn key is changed
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if (fn_bits == 0) { // Fn key is released(falling edge)
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if (!layer_used && timer_elapsed(last_timer) < LAYER_SEND_FN_TERM) {
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debug("Fn case: 2(send Fn)\n");
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// send Fn key (case: 2[no layer used],3)
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usb_keyboard_swap_report();
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usb_keyboard_clear_report();
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usb_keyboard_add_code(keymap_fn_keycode(last_bits));
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usb_keyboard_set_mods(last_mods);
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usb_keyboard_send();
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usb_keyboard_print();
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usb_keyboard_clear();
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usb_keyboard_swap_report();
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}
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debug("Fn case: 1,2,3,4,5(return to default layer)\n");
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// return to default layer(case: 1,2,3,4,5)
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new_layer = 0;
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current_layer = 0;
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} else { // Fn Key is pressed(rising edge)
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if (!usb_keyboard_has_key()) {
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debug("Fn case: 1,2,3,4(ready for switching layer)\n");
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// ready for switching layer(case: 1,2,3,4)
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new_layer = keymap_fn_layer(fn_bits);
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} else {
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debug("Fn case: 5(add Fn to report)\n");
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// add Fn key to send with other keys(case: 5)
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usb_keyboard_add_code(keymap_fn_keycode(fn_bits));
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}
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}
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last_bits = 0;
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last_mod = 0;
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layer_used = false;
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current_layer = 0; // default layer
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} else if ((fn_bits & (fn_bits - 1)) == 0) {
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// switch layer when just one Fn Key is pressed
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if (!usb_keyboard_has_key()) {
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last_bits = fn_bits;
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last_mod = keyboard_modifier_keys;
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last_mods = usb_keyboard_mods;
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last_timer = timer_read();
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debug("new_layer: "); debug_hex(new_layer); debug("\n");
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debug("last_bits: "); debug_bin(last_bits); debug("\n");
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debug("last_mod: "); debug_hex(last_mod); debug("\n");
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debug("last_mods: "); debug_hex(last_mods); debug("\n");
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debug("last_timer: "); debug_hex16(last_timer); debug("\n");
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}
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}
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}
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tmk
14 years ago