Add Word Per Minute calculation feature (#8054)

* Add Word Per Minute calculation feature

* Fix copyright info

* Remove header from quantum.c, setup overloadable keycode inclusion for WPM, update docs

* Simplify logic for keycode filtering

* Adding link from summary to wpm_feature info

* Update docs/feature_wpm.md

Typo in function prototype example in docs

Co-Authored-By: James Young <18669334+noroadsleft@users.noreply.github.com>

* Add WPM transport via i2c

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/quantum/wpm.h b/quantum/wpm.h
new file mode 100644
index 000000000..fa0b6d128
--- /dev/null
+++ b/quantum/wpm.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2020 Richard Sutherland (rich@brickbots.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/>.
+ */
+
+#pragma once
+
+#include "quantum.h"
+
+bool wpm_keycode(uint16_t keycode);
+bool wpm_keycode_kb(uint16_t keycode);
+bool wpm_keycode_user(uint16_t keycode);
+
+void set_current_wpm(uint8_t);
+uint8_t get_current_wpm(void);
+void update_wpm(uint16_t);
+
+void decay_wpm(void);