Add Satisfaction75 to QMK, Enable EEPROM on stm32f072 (#5094)

* Add stm32f072 base ck4x4 to handwired

* add prints

* Save these tries

* Save changes again

* Working hadron oled

* OLEd working but ws2812b still iffy:

* save another try

* Encoder feature + OLED

* RTC code

* Implement clock setting mode

* Whitespace

* Encoder hooked up to working LED PWM code

* Add missing files

* eeprom changes

* Save changes

* Move i2c master

* Move satisfaction75 under cannonkeys

* Set proper default folder

* Revert some core changes

* Undo paved iris changes

* Reorganize code for maintainability and prep for new features

* Add starting code for clock OLED mode

* Clock set mode finished

* Add custom encoder modes

* Actually add VIA keymap

* Gate to only 072

* fix gate for only 072

* Update header guards and includes

* Update i2c selection strategy

* Update board.c to handle software reset to DFU

keyboards/cannonkeys/satisfaction75/keymaps/via/keymap.c

@@ -0,0 +1,49 @@
+/*
+Copyright 2012,2013 Jun Wako <wakojun@gmail.com>
+
+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 QMK_KEYBOARD_H
+
+const uint16_t keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT_default(
+    KC_ESC,   KC_F1,    KC_F2,    KC_F3,    KC_F4,    KC_F5,    KC_F6,    KC_F7,    KC_F8,    KC_F9,    KC_F10,   KC_F11,   KC_F12,
+    KC_GRV,   KC_1,     KC_2,     KC_3,     KC_4,     KC_5,     KC_6,     KC_7,     KC_8,     KC_9,     KC_0,     KC_MINS,  KC_EQL,   KC_BSPC,  ENC_PRESS,
+    KC_TAB,   KC_Q,     KC_W,     KC_E,     KC_R,     KC_T,     KC_Y,     KC_U,     KC_I,     KC_O,     KC_P,     KC_LBRC,  KC_RBRC,  KC_BSLS,  KC_DEL,
+    KC_CAPS,  KC_A,     KC_S,     KC_D,     KC_F,     KC_G,     KC_H,     KC_J,     KC_K,     KC_L,     KC_SCLN,  KC_QUOT,  KC_ENTER,           KC_PGUP,
+    KC_LSFT,  KC_Z,     KC_X,     KC_C,     KC_V,     KC_B,     KC_N,     KC_M,     KC_COMM,  KC_DOT,   KC_SLSH,  KC_RSFT,            KC_UP,    KC_PGDN,
+    KC_LCTL,  KC_LGUI,  KC_LALT,                      KC_SPC,                                 KC_RALT,  MO(1),  KC_RCTL,  KC_LEFT,  KC_DOWN,  KC_RGHT
+  ),
+  [1] = LAYOUT_default(
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, OLED_TOGG,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, CLOCK_SET,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______,
+    _______, _______, _______,                   _______,                            _______, _______, _______, _______, _______, _______
+  )
+};
+
+void matrix_init_user(void) {
+  //user initialization
+}
+
+void matrix_scan_user(void) {
+  //user matrix
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}

keyboards/cannonkeys/satisfaction75/keymaps/via/rules.mk

@@ -0,0 +1,5 @@
+# rules.mk overrides to enable VIA
+
+RAW_ENABLE = yes
+DYNAMIC_KEYMAP_ENABLE = yes
+