Add Bootmagic Lite to QMK (#4215)

* Preliminary additon of bootmagic lite functionality

* Cleanup code

* Clean up bootmagic code

* Add documentation and clean up code

* Make 'lite' an option for BOOTMAGIC_ENABLE

* Update Templates with note about Bootmagic Lite option

* Detect Debounce variable

* Make sure debounce is a non-zero number

* Capitalize Bootmagic

* Capitalize bootmagic

* Update wording

* Re-add EEPROM reset, by popular demand

And add eeprom-less version to drashna userspace for his sanity

* Fix spacing

* Set BOOTMAGIC_ENABLE to use full/lite/off

And default yes to "full" for compatibility

* Add Bootmagic lite info to templates

* Remove text from makefiles

* Cleanup of makefile

* mention yes in bootmagic docs

* Wordsmitthing the docs

* Fix white spaces

* Readd default bootmagic setting, because it's necessary

1 files changed, 16 insertions, 0 deletions

diff --git a/users/drashna/drashna.c b/users/drashna/drashna.c
index 5b6620cf33..7c280e2ddd 100644
--- a/users/drashna/drashna.c
+++ b/users/drashna/drashna.c
@@ -424,3 +424,19 @@ void eeconfig_init_user(void) {
   userspace_config.raw = 0;
   eeconfig_update_user(userspace_config.raw);
 }
+
+void bootmagic_lite(void) {
+  matrix_scan();
+  #if defined(DEBOUNCING_DELAY) && DEBOUNCING_DELAY > 0
+    wait_ms(DEBOUNCING_DELAY * 2);
+  #elif defined(DEBOUNCE) && DEBOUNCE > 0
+    wait_ms(DEBOUNCE * 2);
+  #else
+    wait_ms(30);
+  #endif
+  matrix_scan();
+
+  if (matrix_get_row(BOOTMAGIC_LITE_ROW) & (1 << BOOTMAGIC_LITE_COLUMN)) {
+    bootloader_jump();
+  }
+}