[Keyboard] Geekboards Macropad V2 keyboard (#11045)

* Initial commit of Geekboards Macropad V2 keyboard

* Apply suggestions from code review

Co-authored-by: Joel Challis <git@zvecr.com>

* Apply suggestions from code review: delete unnecessary files

* Fixed typos

* Apply suggestions from code review

Co-authored-by: Ryan <fauxpark@gmail.com>

* Change RGB_MATRIX config syntax following recent core changes

* Apply suggestions from drashna code review

* Remove unnecessary file (it is now defined in the core)

* Remove unnecessary code, due to PR 11084 approve

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

keyboards/geekboards/macropad_v2/keymaps/default/keymap.c

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+/* Copyright 2020 Geekboards ltd. (geekboards.ru / geekboards.de)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    LAYOUT_ortho_2x4(
+        KC_1, KC_2, KC_3, KC_4,
+        KC_5, KC_6, KC_7, KC_8
+    )
+};

keyboards/geekboards/macropad_v2/keymaps/default/readme.md

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+# The default keymap for Geekboards Macropad v2

keyboards/geekboards/macropad_v2/keymaps/via/config.h

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+#define DYNAMIC_KEYMAP_LAYER_COUNT 4
+#define VIA_QMK_RGBLIGHT_ENABLE

keyboards/geekboards/macropad_v2/keymaps/via/keymap.c

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+/* Copyright 2020 Geekboards ltd. (geekboards.ru / geekboards.de)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+#include "string.h"
+
+bool is_alt_tab_active = false;
+uint16_t alt_tab_timer = 0;
+
+enum custom_keycodes {
+  ALT_TAB = USER00,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [0] = LAYOUT_ortho_2x4(
+        LT(1, KC_MUTE), KC_VOLD, KC_VOLU, MACRO00,
+        ALT_TAB,        KC_MPRV, KC_MNXT, KC_MPLY
+    ),
+    [1] = LAYOUT_ortho_2x4(
+        KC_TRNS, RGB_VAI, RGB_HUI, RGB_SPI,
+        RGB_MOD, RGB_VAD, RGB_HUD, RGB_SPD
+    ),
+    [2] = LAYOUT_ortho_2x4(
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+    ),
+    [3] = LAYOUT_ortho_2x4(
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+    )
+};
+
+//------------ SUPER ALTTAB ---------------
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {               
+        case ALT_TAB:
+            if (record->event.pressed) {
+                if (!is_alt_tab_active) {
+                    is_alt_tab_active = true;
+                    register_code(KC_LALT);
+                }
+                alt_tab_timer = timer_read();
+                register_code(KC_TAB);
+            } else {
+                unregister_code(KC_TAB);
+            }
+            break;
+    }
+    return true;
+}
+
+void matrix_scan_user(void) {     
+    if (is_alt_tab_active) {
+        if (timer_elapsed(alt_tab_timer) > 1000) {
+            unregister_code(KC_LALT);
+            is_alt_tab_active = false;
+        }
+    }
+}
+
+void keyboard_post_init_user(void) {
+    // set default macro after reset (alt-tab)
+    uint8_t get[16] = {0};
+    uint8_t zero[16] = {0};
+    dynamic_keymap_macro_get_buffer(0,16,get);
+    if(memcmp(get, zero, 16) == 0)
+    {
+        uint8_t set[] = {2, 0xe2, 2, 0xe1, 3, 0xe1, 3, 0xe2, 0};
+        dynamic_keymap_macro_set_buffer(0, 9, set);
+    }
+}

keyboards/geekboards/macropad_v2/keymaps/via/readme.md

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+# Geekboards Macropad v2 - VIA layout
+
+Flash with this layout to use [VIA](https://caniusevia.com/) for customising layout.

keyboards/geekboards/macropad_v2/keymaps/via/rules.mk

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+VIA_ENABLE = yes
+# LTO_ENABLE = yes