[Keyboard] Add Hillside 52 (#17374)

* 52 Keymap.json: Set for Hillside 52

- Change script rows

* 52 Keymap.c: mirror .json

CAPSWORD, QK_BOOT, readme cleanup, EE_RST

* 52 Keymap.json: Initial files copy from 56

* 52 Keymap.json nav/edit lay, thumb shift, syms

- Del in backspace spot on sym layer
- Thumb shift OSM instead of extra space
- Nav/edit on num/fn: arrows cut copy paste undo redo, page up/down
- Fn keys bottom row to allow nav edit keys
- App and AltGr on lower row, on their layer
- Braces on index, so more common -= on middle ring.
- Adjust has Ctrl/GUI swap
- EE_RST, CAPSWORD, QK_BOOT, SPLIT_DETECT

* 52 Family: readme image and folder link

* 52 Board: initial copy from 56

* 52 Keymap via

* 52 Board: remove keys, cant columns, better ids

- .json: vid: MM, pid: H52

* 52 Keymap.c: initial.c copy from 48

* QK_BOOT EE_CLR, not ANY(), as config.qmk supports

- CAPSWRD instead of ANY, though config.qmk still converts to ANY()

* Cleanup readme

* 52 Keymap: Remove redundant key, cleanup script

* 52 Keymap: Fix template

* 52 Readme: Link lower res image better for readme

Co-authored-by: Drashna Jaelre <drashna@live.com>

* 52 Keymap: Move pretty-print script to GitHub wiki

* 52 Keymap: Link to 1024 res image thumbnails

* 52 Keymap: fix whitespace before image link

* Family: Fix image link to 1024 thumb

Co-authored-by: Drashna Jaelre <drashna@live.com>

* 52: Keymap: Caps word on a layer home row

* 52: Keymap: Arrows on right. Symmetric layer keys.

- Nav:
  - Arrows on right so up/down more intuitive. Page up/down on ends
  - Cut on home row, as more common

- Sym:
  - Layer mods on activate hand, extras symbols on left
  - Common digits on lower row

- Base:
  - Layer keys symmetric, on most extended, not resting, thumb
  - Mute on util key for easy use

- Swap layers 3 and 4 to match swapped thumbs

Co-authored-by: mmccoyd <mmccoyd@cs.berkley.edu>
Co-authored-by: Drashna Jaelre <drashna@live.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/keyboards/handwired/hillside/52/52.h b/keyboards/handwired/hillside/52/52.h
new file mode 100644
index 0000000000..f09d896938
--- /dev/null
+++ b/keyboards/handwired/hillside/52/52.h
@@ -0,0 +1,39 @@
+// Copyright 2021 Michael McCoyd (@mmccoyd)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "quantum.h"
+
+/* This is a mapping so keymap files can be more readable to humans.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts those identifiers into a two-dimensional array which
+ * represents the switch matrix.
+ * 
+ * The identifiers could be anything, but for human sanity have the folowing form
+ * <Left or Right><Physical or thumb row><Circuit column counting from outer pinky>
+ */
+
+// clang-format off
+#define LAYOUT( \
+  L00, L01, L02, L03, L04, L05,                     R05, R04, R03, R02, R01, R00, \
+  L10, L11, L12, L13, L14, L15,                     R15, R14, R13, R12, R11, R10, \
+  L20, L21, L22, L23, L24, L25, LT5,           RT5, R25, R24, R23, R22, R21, R20, \
+  L30, L31, L32,      LT1, LT2, LT3, LT4, RT4, RT3, RT2, RT1,      R32, R31, R30 \
+  ) \
+  { \
+    { L00,   L01, L02, L03,   L04,   L05 }, \
+    { L10,   L11, L12, L13,   L14,   L15 }, \
+    { L20,   L21, L22, L23,   L24,   L25 }, \
+    { L30,   L31, L32, KC_NO, KC_NO, KC_NO }, \
+    { KC_NO, LT1, LT2, LT3,   LT4,   LT5 }, \
+    { R00,   R01, R02, R03,   R04,   R05 }, \
+    { R10,   R11, R12, R13,   R14,   R15 }, \
+    { R20,   R21, R22, R23,   R24,   R25 }, \
+    { R30,   R31, R32, KC_NO, KC_NO, KC_NO }, \
+    { KC_NO, RT1, RT2, RT3,   RT4,   RT5 } \
+  }
+// clang-format on