[Keyboard] NK87 (#9965)

* Initial commit

* Fix1

* Final Prettify

* Update keyboards/nk87/config.h

* Update keyboards/nk87/keymaps/default/keymap.c

* Update keyboards/nk87/keymaps/via/keymap.c

* Update keyboards/nk87/rules.mk

* Remove unnecessary junk

* Update keyboards/nk87/readme.md

* Update keyboards/nk87/readme.md

* Update keyboards/nk87/readme.md

* Update keyboards/nk87/keymaps/default/readme.md

* Update keyboards/nk87/keymaps/via/readme.md

1 files changed, 58 insertions, 0 deletions

diff --git a/keyboards/nk87/nk87.c b/keyboards/nk87/nk87.c
new file mode 100755
index 000000000..bcebbc651
--- /dev/null
+++ b/keyboards/nk87/nk87.c
@@ -0,0 +1,58 @@
+/* Copyright 2020 Yiancar
+ *
+ * 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/>.
+ */
+#ifndef RGB_BACKLIGHT_NK87
+#error RGB_BACKLIGHT_NK87 not defined, recheck config.h
+#endif
+
+#include "nk87.h"
+#include "drivers/issi/is31fl3733.h"
+
+/* Indicator LEDS are part of the LED driver
+ * Top LED is blue only. LED driver 2 RGB 63 Blue channel
+ * Middle LED is blue and red. LED driver 2 RGB 63 Red and Green channel
+ * Bottom LED is red only LED driver 2 RGB 48 Blue channel.
+ */
+uint8_t CAPS = 0;
+uint8_t FN1 = 0;
+uint8_t FN2 = 0;
+
+bool led_update_kb(led_t led_state) {
+    bool res = led_update_user(led_state);
+    if(res) {
+        if (led_state.caps_lock) {
+            CAPS = 255;
+        } else {
+            CAPS = 0;
+        }
+    }
+    IS31FL3733_set_color( 63+64-1, FN1, FN1, CAPS );
+    IS31FL3733_set_color( 48+64-1, 0, 0, FN2 );
+    return res;
+}
+
+__attribute__((weak)) layer_state_t layer_state_set_user(layer_state_t state) {
+    if (state & (1UL << 1)) {
+        FN1 = 255;
+    } else {
+        FN1 = 0;
+    }
+    if (state & (1UL << 2)) {
+        FN2 = 255;
+    } else {
+        FN2 = 0;
+    }
+  return state;
+}