[Keyboard] Add Prime_EXL Plus to handwired (#8238)

* Add VIA support for Prime_L

* Update keyboards/primekb/prime_l/v1/config.h

* Add prime_exl_plus keyboard

* Temporary removal of prime_exl_plus

* Add Prime_EXL Plus, including VIA support

* Update keyboards/handwired/prime_exl_plus/readme.md

* Update keyboards/handwired/prime_exl_plus/readme.md

* Update keyboards/handwired/prime_exl_plus/readme.md

* Update keyboards/handwired/prime_exl_plus/rules.mk

* Update keyboards/handwired/prime_exl_plus/info.json

* Update keyboards/handwired/prime_exl_plus/info.json

* Update keyboards/handwired/prime_exl_plus/info.json

* Update keymap.c

* correct spacing of keymaps and layout macro. move indicator logic from user space to keyboard space

* further corrections to keymaps and layout macro.

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update keyboards/handwired/prime_exl_plus/prime_exl_plus.c

* Update prime_exl_plus.c

* small edit to prime_exl_plus.c

1 files changed, 49 insertions, 0 deletions

diff --git a/keyboards/handwired/prime_exl_plus/prime_exl_plus.c b/keyboards/handwired/prime_exl_plus/prime_exl_plus.c
new file mode 100644
index 000000000..266a3b638
--- /dev/null
+++ b/keyboards/handwired/prime_exl_plus/prime_exl_plus.c
@@ -0,0 +1,49 @@
+/* Copyright 2020 Holten Campbell
+ *
+ * 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 "prime_exl_plus.h"
+
+void matrix_init_kb(void) {
+  // set CapsLock LED to output and low
+  setPinOutput(B0);
+  writePinLow(B0);
+  // set NumLock LED to output and low
+  setPinOutput(B1);
+  writePinLow(B1);
+  // set ScrollLock LED to output and low
+  setPinOutput(B2);
+  writePinLow(B2);
+}
+
+bool led_update_kb(led_t led_state) {
+    bool res = led_update_user(led_state);
+    if(res) {
+        writePin(B1, led_state.num_lock);
+        writePin(B0, led_state.caps_lock);
+        //writePin(B2, led_state.scroll_lock);
+    }
+    return res;
+}
+
+//function for layer indicator LED
+layer_state_t layer_state_set_kb(layer_state_t state)
+{
+    if (get_highest_layer(state) == 1) {
+    writePinHigh(B2);
+	} else {
+		writePinLow(B2);
+    }
+    return layer_state_set_user(state);
+}