[Keyboard] keebwerk. nano. slider support (#7914)

* Initial Keeb.werk nano.slider support

* fixed open ifdef

* Fixed layout macros

* Added LTO

* Enabled LTO and dissabled console

* Added basic slider example

* rate limited adc, and fixed send_string

* Made slider courser

* new-line after each slider print

* Switched slider example mirror the stock behavior using midi

* switched division to bit-shifting

* Apply suggestions from code review

* Update keyboards/keebwerk/nano_slider/keymaps/default/keymap.c

* Update keyboards/keebwerk/nano_slider/config.h

* Update keyboards/keebwerk/nano_slider/config.h

* Applied suggestions from code review

* Apply suggestions from code review

* Added fauxparks info.json

* Reverse midi value direction, move to QMKVID

* Update keyboards/keebwerk/nano_slider/config.h

* Update keyboards/keebwerk/nano_slider/config.h

* Update keyboards/keebwerk/nano_slider/keymaps/default/keymap.c

* Apply suggestions from code review

* Update keyboards/keebwerk/nano_slider/rules.mk

* Update keyboards/keebwerk/nano_slider/nano_slider.h

* Update keyboards/keebwerk/nano_slider/readme.md

* Defined backlight pin and settings

2 files changed, 87 insertions, 0 deletions

diff --git a/keyboards/keebwerk/nano_slider/keymaps/default/keymap.c b/keyboards/keebwerk/nano_slider/keymaps/default/keymap.c
new file mode 100644
index 0000000000..85f2d55ec8
--- /dev/null
+++ b/keyboards/keebwerk/nano_slider/keymaps/default/keymap.c
@@ -0,0 +1,86 @@
+/* Copyright 2020 Duckle
+ *
+ * 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 "analog.h"
+#include "qmk_midi.h"
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+    _BASE,
+    _FN,
+    _DEMO
+};
+
+// Defines the keycodes used by our macros in process_record_user
+enum custom_keycodes {
+    QMKBEST = SAFE_RANGE,
+    QMKURL
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Base */
+    [_BASE] = LAYOUT(
+        TO(_FN),
+        KC_1,    KC_2,    KC_3,
+        KC_4,    KC_5,    KC_6,    KC_0
+    ),
+    [_FN] = LAYOUT(
+        TO(_DEMO),
+        RGB_TOG, RGB_MOD, RGB_VAI,
+        _______, _______, _______, _______
+    ),
+    [_DEMO] = LAYOUT(
+        TO(_BASE),
+        QMKBEST, _______, _______,
+        _______, _______, _______, QMKURL
+    )
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case QMKBEST:
+            if (record->event.pressed) {
+                // when keycode QMKBEST is pressed
+                SEND_STRING("QMK is the best thing ever!");
+            } else {
+                // when keycode QMKBEST is released
+            }
+            break;
+        case QMKURL:
+            if (record->event.pressed) {
+                // when keycode QMKURL is pressed
+                SEND_STRING("https://qmk.fm/\n");
+            } else {
+                // when keycode QMKURL is released
+            }
+            break;
+    }
+    return true;
+}
+
+uint8_t divisor = 0;
+
+void slider(void) {
+    if (divisor++) { // only run the slider function 1/256 times it's called
+        return;
+    }
+
+    midi_send_cc(&midi_device, 2, 0x3E, 0x7F - (analogReadPin(SLIDER_PIN) >> 3));
+}
+
+void matrix_scan_user(void) {
+    slider();
+}
diff --git a/keyboards/keebwerk/nano_slider/keymaps/default/readme.md b/keyboards/keebwerk/nano_slider/keymaps/default/readme.md
new file mode 100644
index 0000000000..55a8805553
--- /dev/null
+++ b/keyboards/keebwerk/nano_slider/keymaps/default/readme.md
@@ -0,0 +1 @@
+# The default keymap for nano_slider