[Keyboard] Add Support for Wren Keyboard (#14570)

* initial prime_o commit

* Cleaned up comments, other things.

* Updated keymap to use standard seven-underscore KC_TRNS notation

* initial prime_o commit

* Cleaned up comments, other things.

* Updated keymap to use standard seven-underscore KC_TRNS notation

* Initial Code for Wren Keyboard

This is the initial hardware test commit for the wren. More detailed keymaps will be added soon.

* Update layout and add author

* Add PCB Image and Clarify Bootloader Instructions

* Update config.h

Updating config.h to remove mentions to LED backlighting (not supported on this PCB)

* Update wren.h to match PR checklist

* Roll back addition of code that should have been in wren.h

* Update /default/keymap.c

Make keyboard.c "pristine" to the best of my ability and add information about configuring a "non-standard" layout.

* Update readme.md

* Update keymap readmes to match PR checklist

* Update readme.md

* Final touches before PR

* Un-delete non-wren files

* Create rules.mk

* Create config.h

* Update keyboards/wren/keymaps/walterhanley/keymap.c

* Update keyboards/wren/keymaps/walterhanley/keymap.c

* Update keyboards/wren/wren.c

As per feedback, move encoder definition to wren.c from keymap.c.

* Update keyboards/wren/keymaps/walterhanley/keymap.c

As per feedback, move encoder definition to wren.c from keymap.c

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

As per feedback, move encoder definition to wren.c from keymap.c

* Create Keymap-Level config.h

I've been dealing with some issues with this board over-drawing power on certain devices; this should fix that issue on my build without affecting other users.

* Add bells and whistles to personal keymap

This update adds bells and whistles to my personal keymap. I couldn't figure out how to modify rotary encoder functionality for just my personal layout with the definition in wren.c, so I moved it back into the individual keymaps. Please let me know if this is an issue and I can look into possible alternative implementations.

* Update to match drashna's requested changes

* Update keymap.c

This update refines drashna's requested changes.

* Update keymap.c

Fix typo

1 files changed, 35 insertions, 0 deletions

diff --git a/keyboards/wren/wren.c b/keyboards/wren/wren.c
new file mode 100644
index 0000000000..487c9d3070
--- /dev/null
+++ b/keyboards/wren/wren.c
@@ -0,0 +1,35 @@
+/* Copyright 2021 Walter Hanley
+ *
+ * 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 "wren.h"
+
+bool encoder_update_kb(uint8_t index, bool clockwise) {
+    if (!encoder_update_user(index, clockwise)) { return false; }
+    if (index == 0) { /* First encoder */
+        if (clockwise) {
+            tap_code(KC_PGDN);
+        } else {
+            tap_code(KC_PGUP);
+        }
+    } else if (index == 1) { /* Second encoder */
+        if (clockwise) {
+            tap_code(KC_VOLU);
+        } else {
+            tap_code(KC_VOLD);
+        }
+    }
+    return true;
+}