[Keyboard] VIA Support for Boardwalk (#8124)

* initial commit of VIA Support

* update PRODUCT (and MANUFACTURER) per VIA docs

Reference: https://caniusevia.com/docs/configuring_qmk#change-product

Updated MANUFACTURER so it matches what the PRODUCT says.

* enable Link Time Optimization per mechmerlin

* revert change to USB Product Name

* add two empty layers to via keymap

VIA keymaps need four layers in flash.

* correct the layer indexes

Start from 0, not 1.

3 files changed, 113 insertions, 0 deletions

diff --git a/keyboards/boardwalk/keymaps/via/keymap.c b/keyboards/boardwalk/keymaps/via/keymap.c
new file mode 100644
index 0000000000..d5b1795b62
--- /dev/null
+++ b/keyboards/boardwalk/keymaps/via/keymap.c
@@ -0,0 +1,110 @@
+/*
+ * 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
+
+// Layer shorthand
+enum layer_names {
+    _BASE,
+    _FN,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    /* Base Layer
+     * .-----------------------------------------------------------------------------------------------------------------------------.
+     * | ESC    | 1      | 2      | 3      | 4      | 5      | -      | =      | 6      | 7      | 8      | 9      | 0      | BACKSP |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
+     * | TAB    | Q      | W      | E      | R      | T      | [      | ]      | Y      | U      | I      | O      | P      | '      |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------+--------|
+     * | CAP LK | A      | S      | D      | F      | G      | HOME   | PG UP  | H      | J      | K      | L      | ;      | ENTER  |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------------------------+--------|
+     * | LSHIFT | Z      | X      | C      | V      | B      | END    | PG DN  | N      | M      | ,      | .      | /      | RSHIFT |
+     * |--------+--------+--------+--------+--------+-----------------+--------+--------+--------+-----------------+--------+--------|
+     * | LCTRL  | LGUI   | FN     | LALT   | SPACE  | SPACE  | SPACE  | SPACE  | SPACE  | LEFT   | DOWN   | UP     | RIGHT  | RCTRL  |
+     * '-----------------------------------------------------------------------------------------------------------------------------'
+     */
+    [_BASE] = LAYOUT_ortho_5x14(
+        KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_MINS, KC_EQL,  KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC,
+        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_LBRC, KC_RBRC, KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_QUOT,
+        KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_HOME, KC_PGUP, KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_ENT,
+        KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_END,  KC_PGDN, KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,
+        KC_LCTL, KC_LGUI, MO(_FN), KC_LALT, KC_SPC,  KC_SPC,  KC_SPC,  KC_SPC,  KC_SPC,  KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_RCTL
+    ),
+
+    /* Function Layer
+     * .-----------------------------------------------------------------------------------------------------------------------------.
+     * | `      | F1     | F2     | F3     | F4     | F5     | F6     | F7     | F8     | F9     | F10    | F11    | F12    | DEL    |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
+     * |        |        | MENU   |        |        |        |        |        |        |        |        |        | PRT SC |        |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        | RESET  |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------------------------+--------|
+     * |        |        |        |        |        |        |        |        |        | MUTE   | VOL DN | VOL UP | \      |        |
+     * |--------+--------+--------+--------+--------+-----------------+--------+--------+--------+-----------------+--------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * '-----------------------------------------------------------------------------------------------------------------------------'
+     */
+    [_FN] = LAYOUT_ortho_5x14(
+        KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL,
+        _______, _______, KC_APP,  _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_PSCR, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MUTE, KC_VOLD, KC_VOLU, KC_BSLS, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+    ),
+
+    /* Empty Layer
+     * .-----------------------------------------------------------------------------------------------------------------------------.
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------------------------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+-----------------+--------+--------+--------+-----------------+--------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * '-----------------------------------------------------------------------------------------------------------------------------'
+     */
+    [2] = LAYOUT_ortho_5x14(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+    ),
+
+    /* Empty Layer
+     * .-----------------------------------------------------------------------------------------------------------------------------.
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+-----------------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------------------------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * |--------+--------+--------+--------+--------+-----------------+--------+--------+--------+-----------------+--------+--------|
+     * |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+     * '-----------------------------------------------------------------------------------------------------------------------------'
+     */
+    [3] = LAYOUT_ortho_5x14(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+    )
+
+};
diff --git a/keyboards/boardwalk/keymaps/via/readme.md b/keyboards/boardwalk/keymaps/via/readme.md
new file mode 100644
index 0000000000..86a7b902f3
--- /dev/null
+++ b/keyboards/boardwalk/keymaps/via/readme.md
@@ -0,0 +1 @@
+# The via keymap for Boardwalk
diff --git a/keyboards/boardwalk/keymaps/via/rules.mk b/keyboards/boardwalk/keymaps/via/rules.mk
new file mode 100644
index 0000000000..36b7ba9cbc
--- /dev/null
+++ b/keyboards/boardwalk/keymaps/via/rules.mk
@@ -0,0 +1,2 @@
+VIA_ENABLE = yes
+LTO_ENABLE = yes