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-rw-r--r--keyboards/ergodox_ez/keymaps/bdk/config.h5
-rw-r--r--keyboards/ergodox_ez/keymaps/bdk/keymap.c176
-rw-r--r--keyboards/ergodox_ez/keymaps/bdk/readme.md36
-rw-r--r--keyboards/ergodox_ez/keymaps/bdk/rules.mk3
4 files changed, 220 insertions, 0 deletions
diff --git a/keyboards/ergodox_ez/keymaps/bdk/config.h b/keyboards/ergodox_ez/keymaps/bdk/config.h
new file mode 100644
index 0000000000..e824b73109
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/bdk/config.h
@@ -0,0 +1,5 @@
+#pragma once
+
+#define ONESHOT_TAP_TOGGLE 2
+#define ONESHOT_TIMEOUT 167
+#define FORCE_NKRO
diff --git a/keyboards/ergodox_ez/keymaps/bdk/keymap.c b/keyboards/ergodox_ez/keymaps/bdk/keymap.c
new file mode 100644
index 0000000000..20af6c18ed
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/bdk/keymap.c
@@ -0,0 +1,176 @@
+#include QMK_KEYBOARD_H
+
+#define SHIFT_DOWN() (get_mods() & (MOD_BIT(KC_LSFT)|MOD_BIT(KC_RSFT)))
+#define KC_FKEYS MO(FKEYS)
+
+// Layers
+enum {
+ BASE=0,
+ SYMNUM, // Symbols and numbers (activated by holding enter)
+ FKEYS, // Function keys (activated by a thumb button)
+};
+
+// counter that increments on all key press events. This is needed for our LT
+// handling
+uint16_t press_counter = 0;
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+// Keymap 0: Base layer
+
+[BASE] = LAYOUT_ergodox(
+ // left hand ---------------------------------------------------------------------------------------------------
+ KC_NO, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_NO,
+ KC_GRV, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_LGUI,
+ KC_SLSH, KC_A, KC_O, KC_E, KC_U, KC_I,
+ KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_HOME,
+ KC_LCTL, KC_LALT, KC_PGUP, KC_PGDN, KC_NO,
+ // left thumb --------------------------------------------------------------------------------------------------
+ KC_NO, KC_NO,
+ KC_NO,
+ KC_SPC, KC_TAB, KC_FKEYS,
+ // right hand --------------------------------------------------------------------------------------------------
+ KC_NO, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_NO,
+ KC_RGUI, KC_F, KC_G, KC_C, KC_R, KC_L, KC_BSLS,
+ KC_D, KC_H, KC_T, KC_N, KC_S, KC_MINS,
+ KC_END, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_RSFT,
+ KC_LEFT, KC_UP, KC_DOWN, KC_RIGHT, KC_RCTL,
+ // right thumb -------------------------------------------------------------------------------------------------
+ KC_NO, KC_NO,
+ KC_NO,
+ KC_DEL, KC_BSPC, KC_ENT
+),
+// SYMNUM -- numpad and function keys
+[SYMNUM] = LAYOUT_ergodox(
+ // left hand ---------------------------------------------------------------------------------------------------
+ KC_TRNS, LALT(KC_1), LALT(KC_2), LALT(KC_3), LALT(KC_4), LALT(KC_5), KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_AMPR, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_LCBR, KC_LBRC, KC_LPRN, KC_0, KC_MINS,
+ KC_TRNS, KC_6, KC_7, KC_8, KC_9, KC_SLSH, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ // left thumb --------------------------------------------------------------------------------------------------
+ KC_TRNS, KC_TRNS,
+ KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS,
+ // right hand --------------------------------------------------------------------------------------------------
+ KC_TRNS, LALT(KC_6), LALT(KC_7), LALT(KC_8), LALT(KC_9), LALT(KC_0), KC_TRNS,
+ KC_TRNS, KC_PERC, KC_EQL, KC_LT, KC_GT, KC_EXLM, KC_TRNS,
+ KC_PLUS, KC_1, KC_RPRN, KC_RBRC, KC_RCBR, KC_TRNS,
+ KC_TRNS, KC_ASTR, KC_2, KC_3, KC_4, KC_5, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ // right thumb -------------------------------------------------------------------------------------------------
+ KC_TRNS, KC_TRNS,
+ KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS
+),
+// FKEYS -- function keys
+[FKEYS] = LAYOUT_ergodox(
+ // left hand ---------------------------------------------------------------------------------------------------
+ KC_TRNS, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ // left thumb --------------------------------------------------------------------------------------------------
+ KC_TRNS, KC_TRNS,
+ KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS,
+ // right hand --------------------------------------------------------------------------------------------------
+ KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+ // right thumb -------------------------------------------------------------------------------------------------
+ KC_TRNS, KC_TRNS,
+ KC_TRNS,
+ KC_TRNS, KC_TRNS, KC_TRNS
+),
+};
+
+// Code to handle layer tap.
+//
+// The default code doesn't work for me, so I rolled my own code. The main
+// difference is that it always tries to send modifier+key combination, rather
+// than two keys. One place where this is noticable is if you tap the key,
+// then try hold it.
+
+struct tap_start_info {
+ uint16_t timer;
+ uint16_t initial_press_counter;
+};
+
+static struct tap_start_info tap_start_infos[5];
+
+// Quick check to see if a key is down. Note that this requires NKRO enabled
+static bool key_down(uint8_t code) {
+ return (keyboard_report->nkro.bits[code>>3] & 1<<(code&7)) != 0;
+}
+
+static bool handle_lt(uint16_t keycode, keyrecord_t *record, uint8_t layer, uint8_t index) {
+ struct tap_start_info* tap_start = tap_start_infos + index;
+
+ if(record->event.pressed) {
+ layer_on(layer);
+ tap_start->timer = timer_read();
+ tap_start->initial_press_counter = press_counter;
+ } else {
+ layer_off(layer);
+ // Only click the key if:
+ // - No other keys are pressed between the press and release events
+ // - The release happens before the ONESHOT_TIMEOUT
+ if(press_counter == tap_start->initial_press_counter && timer_elapsed(tap_start->timer) < ONESHOT_TIMEOUT) {
+ register_code16(keycode);
+ unregister_code16(keycode);
+ }
+ }
+ return false;
+}
+
+static bool handle_mt(uint16_t keycode, keyrecord_t *record, uint8_t mods, uint8_t index) {
+ struct tap_start_info* tap_start = tap_start_infos + index;
+
+ if(record->event.pressed) {
+ register_mods(mods);
+ tap_start->timer = timer_read();
+ tap_start->initial_press_counter = press_counter;
+ } else {
+ unregister_mods(mods);
+ // Only click the key if:
+ // - No other keys are pressed between the press and release events
+ // - The release happens before the ONESHOT_TIMEOUT
+ if(press_counter == tap_start->initial_press_counter && timer_elapsed(tap_start->timer) < ONESHOT_TIMEOUT) {
+ register_code16(keycode);
+ unregister_code16(keycode);
+ }
+ }
+ return false;
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ if(record->event.pressed) {
+ press_counter++;
+ // The symbol layer allows sequences repeat the same "physical" key.
+ // For example "0)", which is like pressing the "0" key twice in a
+ // row. It's very easy to make a sequence of these where the ")"
+ // press comes before the "0" release. If that happens, force a
+ // release of the "0" key, otherwise nothing will happen.
+ uint8_t shortcode = keycode & 0xFF;
+ if(key_down(shortcode)) {
+ unregister_code(shortcode);
+ }
+ }
+
+ switch(keycode) {
+ case KC_ENTER:
+ return handle_lt(keycode, record, SYMNUM, 0);
+
+ case KC_TAB:
+ return handle_mt(keycode, record, MOD_BIT(KC_LCTL), 1);
+
+ case KC_LSFT:
+ case KC_RSFT:
+ return handle_mt(KC_ESC, record, MOD_BIT(keycode), 2);
+ }
+ return true;
+}
diff --git a/keyboards/ergodox_ez/keymaps/bdk/readme.md b/keyboards/ergodox_ez/keymaps/bdk/readme.md
new file mode 100644
index 0000000000..36a211d321
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/bdk/readme.md
@@ -0,0 +1,36 @@
+# The BDK Ergodox Keyboard Layout
+
+## Dvorak-based
+
+This was the first alternative layout I switched to and I don't want to change
+again.
+
+## Mod-tap / Layer-tap is great for thumb keys
+
+This means a key that activates a layer/modifier when you hold it down, but
+results in a keyclick when you tap it. Thumb keys are great for this since
+they are good for both high-usage keys as well as modifiers.
+
+The one thing to avoid is when you mean to tap a key, but hit the next key
+before you release, which results in the modifier/layer instead of a tap. To
+avoid this, I chose Enter/Tab as the tap keys, since they aren't chorded
+together with other keys often.
+
+The other issue is I found several problems with using the standard MT,LT code,
+so I rolled my own to handle it.
+
+## Don't have too many layers
+
+My first layouts had multiple layers that I could switch to, but that
+overloaded my brain. This layout basically only uses 1 extra layer.
+Technically there's also a function key layer, but I only use those keys for
+a handlful of things: boot order, rename, reload page, that's basically it.
+
+## Brackets should be easy to use
+
+There's a lot of ways to lay out a symbol layer. I organized mine around
+making the {[()]} chars easy to use since they're so frequent in programming.
+I put them all on the symbol layer home row.
+
+I also arranged the numbers so 0/1 were also on the symbol layer home row.
+This makes for fairly easy chording of "[0]" and "[1]".
diff --git a/keyboards/ergodox_ez/keymaps/bdk/rules.mk b/keyboards/ergodox_ez/keymaps/bdk/rules.mk
new file mode 100644
index 0000000000..6c51636239
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/bdk/rules.mk
@@ -0,0 +1,3 @@
+# CONSOLE_ENABLE = yes
+# DEBUG_ENABLE = yes
+COMMAND_ENABLE = no
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 15:21:21 +0000