[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, 125 insertions, 0 deletions

diff --git a/keyboards/wren/config.h b/keyboards/wren/config.h
new file mode 100644
index 000000000..93b8468c1
--- /dev/null
+++ b/keyboards/wren/config.h
@@ -0,0 +1,125 @@
+/*
+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/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID    0xFEED
+#define PRODUCT_ID   0x0000
+#define DEVICE_VER   0x0001
+#define MANUFACTURER Walter Hanley
+#define PRODUCT      wren
+
+/* key matrix size */
+// Rows are doubled-up (Bottom set of rows are used for the right half)
+#define MATRIX_ROWS 10
+#define MATRIX_COLS 10
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+ */
+#define MATRIX_ROW_PINS { D3, D2, C6, D4, B5 }
+#define MATRIX_COL_PINS { B6, B2, B3, B1, F7, F6, F5, F4, D7, F0 }
+#define UNUSED_PINS
+
+// define encoders
+#define ENCODERS_PAD_A \
+    { E6 }
+#define ENCODERS_PAD_B \
+    { B4 }
+#define ENCODERS_PAD_A_RIGHT \
+    { B4 }
+#define ENCODERS_PAD_B_RIGHT \
+    { E6 }
+
+/* COL2ROW, ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/*
+ * Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
+ */
+#define USE_I2C
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is useful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+//#define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+
+/* disable these deprecated features by default */
+#define NO_ACTION_MACRO
+#define NO_ACTION_FUNCTION
+
+/* Bootmagic Lite key configuration */
+//#define BOOTMAGIC_LITE_ROW 0
+//#define BOOTMAGIC_LITE_COLUMN 0