[Keyboard] Stelo65 (#15102)

* [Keyboard] add new keyboard Stelo

* [Keyboard] Stelo encoder action

* Update keyboards/wekey/stelo/readme.md

* Update keyboards/wekey/stelo/rules.mk

* [Keyboard] change name Stelo to Stelo65

keyboards/wekey/stelo65/encoder_actions.c

@@ -0,0 +1,57 @@
+/* Copyright 2020 Neil Brian Ramirez
+ * Copyright 2021 drashna jael're (@drashna)
+ * Copyright 2021 uybv
+ *
+ * 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 3 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 "encoder_actions.h"
+
+#ifdef ENCODER_ENABLE
+
+#    ifdef ENCODERS
+static uint8_t  encoder_state[ENCODERS] = {0};
+static keypos_t encoder_cw[ENCODERS]    = ENCODERS_CW_KEY;
+static keypos_t encoder_ccw[ENCODERS]   = ENCODERS_CCW_KEY;
+#    endif
+
+void encoder_action_unregister(void) {
+#    ifdef ENCODERS
+    for (int index = 0; index < ENCODERS; ++index) {
+        if (encoder_state[index]) {
+            keyevent_t encoder_event = (keyevent_t) {
+                .key = encoder_state[index] >> 1 ? encoder_cw[index] : encoder_ccw[index],
+                .pressed = false,
+                .time = (timer_read() | 1)
+            };
+            encoder_state[index] = 0;
+            action_exec(encoder_event);
+        }
+    }
+#    endif
+}
+
+void encoder_action_register(uint8_t index, bool clockwise) {
+#    ifdef ENCODERS
+    keyevent_t encoder_event = (keyevent_t) {
+        .key = clockwise ? encoder_cw[index] : encoder_ccw[index],
+        .pressed = true,
+        .time = (timer_read() | 1)
+    };
+    encoder_state[index] = (clockwise ^ 1) | (clockwise << 1);
+    action_exec(encoder_event);
+#    endif
+}
+
+#endif