* [BACKLIGHT_CAPS_LOCK_INDICATOR] Use backlight toggling as Caps Lock LED

I've implemented this feature because S65-X doesn't have LED indicators
and the existing led_set_kb(usb_led) function try to use backlight as
indicator but that creates an inconsistency with backlight_config state.

- define `BACKLIGHT_CAPS_LOCK_INDICATOR` to enable Caps Lock indicator
  using backlight (for keyboards without dedicated LED)

- Don't turn off LED indicators when suspend because backlight is
  already turned off. Else led_set(0) will turn back on backlight.

- Documentation has been updated

* [BACKLIGHT_CAPS_LOCK_INDICATOR] Turn off all LED indicators except Caps Lock if BACKLIGHT_CAPS_LOCK_INDICATOR

* [BACKLIGHT_CAPS_LOCK] Rename BACKLIGHT_CAPS_LOCK_INDICATOR

* [BACKLIGHT_CAPS_LOCK] Use new IS_LED_ON method

* Update Practice60 to enable RGB via SPI DMA and use PWM backlight breathing

* Correct stm32f103c8t6 flash size in eeprom definition

* Remove unused files and improve ifdef checks

* Update quantum/rgblight.c

Co-Authored-By: awkannan <andrew.kannan@klaviyo.com>

* Update quantum/rgblight.c

Co-Authored-By: awkannan <andrew.kannan@klaviyo.com>

* EEPROM implementation fix and updated p60 code

* Update define

* Remove dead code

* Update keymap to remove test key

* Update keymap again

* Remove unnecessary IS_COMMAND definition in clueboard/66/rev4

* Replace keyboard_report->mods with get_mods() in IS_COMMAND definitions

* Update docs to use get_mods() instead of keyboard_report->mods

* Replace keyboard_report->mods with get_mods() in tmk_core/protocol/usb_hid/test

For some reason, this occurrence used KB_LSHIFT and KB_RSHIFT, which don't exist

* Replace keyboard_report->mods with get_mods() in Massdrop keyboards (as per @patrickmt)

* Add default value for IS_COMMAND for COMMAND feature

* Cleanup and consistency

* Update Templates to reflect change

* Fix IS_COMMAND in template

* Fix IS_COMMAND define

* Use consistent IS_COMMAND block in templates

* Remove unnecessary `#undef IS_COMMAND` directives

* Fix compile issue on orthodox

* Reomve IS_COMMAND option for newer boards

* Remove all existing definitions of IS_COMMAND if they use default LSHIFT and RSHIFT setting

* Remove a couple of additional IS_COMMAND defines

* Remove remaining redundant IS_COMMAND definitions

* Remove #undef IS_COMMAND from orthodox:drashna and whitefox:konstantin

* Remove multiple empty lines in modified config.h files

* Update additional boards

* Reomve IS_COMMAND from newer boards

* Update Alice keyboard

* Remove IS_COMMAND from additional boards

Jan 24th edition

I think `quantum.h` should contain only API declarations that `quantum.c` provides externally. `rgb.h` contains function weak definitions. This should not be in `quantum.h`.

* use pragma once in our templates

* template.h is present in both avr/ps2avrgb options so we moved it to base. In addition we now use pragma once

* fixes #4583

* #4583 - terminal also handles layer tap now

* Eliminate separate slave loop

Both master and slave run the standard keyboard_task main loop now.

* Refactor i2c/serial specific code

Simplify some of the preprocessor mess by using common function names.

* Fix missing #endif

* Move direct pin mapping support from miniaxe to split_common

For boards with more pins than sense--sorry, switches.

* Reordering and reformatting only

* Don't run matrix_scan_quantum on slave side

* Clean up the offset/slaveOffset calculations

* Cut undebounced matrix size in half

* Refactor debouncing

* Minor fixups

* Split split_common transport and debounce code into their own files

Can now be replaced with custom versions per keyboard using
CUSTOM_TRANSPORT = yes and CUSTOM_DEBOUNCE = yes

* Refactor debounce for non-split keyboards too

* Update handwired/xealous to build using new split_common

* Fix debounce breaking basic test

* Dodgy method to allow a split kb to only include one of i2c/serial

SPLIT_TRANSPORT = serial or SPLIT_TRANSPORT = i2c will include only
that driver code in the binary.

SPLIT_TRANSPORT = custom (or anything else) will include neither, the
keyboard must supply it's own code

if SPLIT_TRANSPORT is not defined then the original behaviour (include
both avr i2c and serial code) is maintained.

This could be better but it would require explicitly updating all the
existing split keyboards.

* Enable LTO to get lets_split/sockets under the line

* Add docs for SPLIT_TRANSPORT, CUSTOM_MATRIX, CUSTOM_DEBOUNCE

* Remove avr-specific sei() from split matrix_setup

Not needed now that slave doesn't have a separate main loop.
Both sides (on avr) call sei() in lufa's main() after exiting
keyboard_setup().

* Fix QUANTUM_LIB_SRC references and simplify SPLIT_TRANSPORT.

* Add comments and fix formatting.

* Changed rest term

* Update quantum/audio/musical_notes.h

Co-Authored-By: germ <jeremythegeek@gmail.com>

* adds proton c base

* fixes custom matrix include

* adds readme.md

* initial proton coversion, no pin mapping

* start of mcu selection

* add pin mapping and sweet16 test

* add at90 to list

* disable backlight, fix d7

* update flag names

* doc updates

* proton c update for mcu selection

* Add missing parentheses to quantum_keycodes macros

* Add missing parentheses to progmem macros

* Remove unused UNICODE(n) macro, update docs

* Add note about max length of unicode_map to docs

* QK_UNICODE_MAP → QK_UNICODEMAP

* Refactor process_unicode_map

* process_unicode_map → process_unicodemap

This is done for consistency: UNICODEMAP is the method (hence UNICODEMAP_ENABLE, process_unicodemap), whereas unicode_map is the mapping table itself.

* Update references and ordering in docs/understanding_qmk

* Add additional note to docs/understanding_qmk

* &unicode_map[index] → unicode_map + index

This avoids the issue of the compiler sometimes complaining about the array index being out of range

* Update docs/getting_started_make_guide

* Update method sections in docs/feature_unicode

Fixes builds that set EE_HANDS.

* Use standard KC_ALGR, remove language-specific redefinitions

* Use ALGR instead of ALTGR in BÉPO and Canadian multilingual keymaps

* Remove BE_LALT, BE_LGUI aliases

* Change rgblight_get_mode's return type to uint8_t.

Since rgblight_get_mode() is just returning rgblight_config_t.mode,
it should match rgblight_config_t.mode's type: uint8_t.

* Update rgb_matrix_get_mode to return uint8_t.

* Remove unused I2C_MASTER_RIGHT setting

* Update documentation about split keyboard options

* Add provisional Helix implementation to test the quantum/split_common.

* copy keyboards/helix/serial.[ch] to quantum/split_common/

* Make serial.c a pure driver.

Remove buffer name and buffer size from serial.c. They should be placed in the caller(matrix.c, split_utils.c).

* remove quantum/split_common/serial_backward_compatibility.h

* Changed array serial_master_buffer to structure serial_m2s_buffer.

* Changed array serial_slave_buffer to structure serial_s2m_buffer.

* Change keyboards/miniaxe/matrix.c

I also made changes to quantum/split_comon/matrix.c to keyboards/miniaxe/matrix.c.

Note: I contacted @ka2hiro, creator of miniaxe, and I got permission to change keyboards/miniaxe/matrix.c.

* update history comment in quantum/split_common/serial.c

* Revert "Add provisional Helix implementation to test the quantum/split_common."

This reverts commit 168c82ef82.

* fix keyboards/miniaxe/matrix.c, quantum/split_common/matrix.c

avr-gcc 4.9.[23] report error.
avr-gcc 5.4.0, avr-gcc 7.3.0 pass.
It is funny.

* update comment quantum/split_common/serial.c

* Reserve RGBLIGHT_SPLIT macro in quantum/split_common

* Fix up process_leader to be a bit more optimized

* Process dual function keys better

* Make leader start a callable function

* Fix per key timer call location

* Add escape if already leading

* Return false for KC_LEAD

* Add documentation

* Standardize the Unicode EEPROM code

* Remove unicode init from process_record_* functions

* Add unicode init to where it belongs: matrix_init_quantum

* Move Unicode proccessing to unicode common

* Add audio feedback to input mode keys to drive konstantin up a wall

* Tap_code cleanup

* Update keycodes

* Update unicode documentation

* Update unicode keycodes for consistency/easier merge

* Add Audio Feedback section

* Remove Functions from feature page

And link to the file instead.  Link to specific lines later on.

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* Because I missed it!

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* SPAAAAAAAAAACing

Co-Authored-By: drashna <drashna@live.com>

* Add BSD for future compatibility

* Thought I fixed that!

Co-Authored-By: drashna <drashna@live.com>

* non-breaking

Co-Authored-By: drashna <drashna@live.com>

* Considered that

Co-Authored-By: drashna <drashna@live.com>

* Yuuup

Co-Authored-By: drashna <drashna@live.com>

* consistency

Co-Authored-By: drashna <drashna@live.com>

* white spaces .... copied from elsewhere

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Update keycode defines

* Fix Linux Song

* Update all of the songs

* Cleanup

* Move and update check to ensure only one unicode method is enabled

* Update quantum/quantum_keycodes.h

* Update documentation

* Wordsmithing and cleanup

* Format unicode_common (#13)

* case alignment

* process_record_unicode_common → process_unicode_common

* Move song arrays into function where they're used, align preprocessor directives

* Swap the order of UC_WIN and UC_BSD

* Update Unicode docs

* Reorder Unicode mode stuff to match the order of input mode constants

* Fix capitalization in doc subtitle

* Readd BSD and OSX_RALT songs

* Reword BSD note in docs

* Readd BSD keycode description

* Reword explanation of input on different platforms

* Steal vomindoraan's input mode documentation

Co-Authored-By: vomindoraan (vomindoraan@gmail.com)

* Willingly give Drashna the rest of my Unicode doc improvements

* Wordsmithing

Co-Authored-By: drashna <drashna@live.com>

* remove merge artifacts

* Unicode common cleanup (#17)

* Standardize the Unicode EEPROM code

* Remove unicode init from process_record_* functions

* Add unicode init to where it belongs: matrix_init_quantum

* Move Unicode proccessing to unicode common

* Add audio feedback to input mode keys to drive konstantin up a wall

* Tap_code cleanup

* Update keycodes

* Update unicode documentation

* Update unicode keycodes for consistency/easier merge

* Add Audio Feedback section

* Remove Functions from feature page

And link to the file instead.  Link to specific lines later on.

* Fix white spaces

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* Because I missed it!

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* SPAAAAAAAAAACing

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Add BSD for future compatibility

* Thought I fixed that!

Co-Authored-By: drashna <drashna@live.com>

* non-breaking

Co-Authored-By: drashna <drashna@live.com>

* Considered that

Co-Authored-By: drashna <drashna@live.com>

* Yuuup

Co-Authored-By: drashna <drashna@live.com>

* consistency

Co-Authored-By: drashna <drashna@live.com>

* white spaces .... copied from elsewhere

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Update keycode defines

* Fix Linux Song

* Update all of the songs

* Cleanup

* Move and update check to ensure only one unicode method is enabled

* Update quantum/quantum_keycodes.h

* Update documentation

* Wordsmithing and cleanup

* Format unicode_common (#13)

* case alignment

* process_record_unicode_common → process_unicode_common

* Move song arrays into function where they're used, align preprocessor directives

* Swap the order of UC_WIN and UC_BSD

* Update Unicode docs

* Reorder Unicode mode stuff to match the order of input mode constants

* Fix capitalization in doc subtitle

* Readd BSD and OSX_RALT songs

* Reword BSD note in docs

* Readd BSD keycode description

* Reword explanation of input on different platforms

* Steal vomindoraan's input mode documentation

Co-Authored-By: vomindoraan (vomindoraan@gmail.com)

* Willingly give Drashna the rest of my Unicode doc improvements

* Wordsmithing

Co-Authored-By: drashna <drashna@live.com>

* Rearrange process_unicode_common functions

* Make Unicode input mode constants (UC_*) an enum

* Simplify unicode_input_start/finish code

* Make the key used for WinCompose configurable

* Remove UC_OSX_RALT in favor of setting the key with UNICODE_OSX_KEY

* Update Unicode input mode doc

* Add descriptions and rearrange definitions in process_unicode_common.h

* Add registry command to Unicode docs + misc updates

* Reword an explanation in Unicode docs

* Add TODO comment

* Remove trailing whitespace

* Improve Cycling documentation

* Add Unicode Input method Cycling support (#19)

* Standardize the Unicode EEPROM code

* Remove unicode init from process_record_* functions

* Add unicode init to where it belongs: matrix_init_quantum

* Move Unicode proccessing to unicode common

* Add audio feedback to input mode keys to drive konstantin up a wall

* Tap_code cleanup

* Update keycodes

* Update unicode documentation

* Update unicode keycodes for consistency/easier merge

* Add Audio Feedback section

* Remove Functions from feature page

And link to the file instead.  Link to specific lines later on.

* Fix white spaces

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* Because I missed it!

Co-Authored-By: drashna <drashna@live.com>

* Fix spacing

Co-Authored-By: drashna <drashna@live.com>

* SPAAAAAAAAAACing

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Add BSD for future compatibility

* Thought I fixed that!

Co-Authored-By: drashna <drashna@live.com>

* non-breaking

Co-Authored-By: drashna <drashna@live.com>

* Considered that

Co-Authored-By: drashna <drashna@live.com>

* Yuuup

Co-Authored-By: drashna <drashna@live.com>

* consistency

Co-Authored-By: drashna <drashna@live.com>

* white spaces .... copied from elsewhere

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* white spaces

Co-Authored-By: drashna <drashna@live.com>

* Update keycode defines

* Fix Linux Song

* Update all of the songs

* Cleanup

* Move and update check to ensure only one unicode method is enabled

* Update quantum/quantum_keycodes.h

* Update documentation

* Wordsmithing and cleanup

* Format unicode_common (#13)

* case alignment

* process_record_unicode_common → process_unicode_common

* Move song arrays into function where they're used, align preprocessor directives

* Swap the order of UC_WIN and UC_BSD

* Update Unicode docs

* Reorder Unicode mode stuff to match the order of input mode constants

* Fix capitalization in doc subtitle

* Readd BSD and OSX_RALT songs

* Reword BSD note in docs

* Readd BSD keycode description

* Reword explanation of input on different platforms

* Steal vomindoraan's input mode documentation

Co-Authored-By: vomindoraan (vomindoraan@gmail.com)

* Willingly give Drashna the rest of my Unicode doc improvements

* Wordsmithing

Co-Authored-By: drashna <drashna@live.com>

* Rearrange process_unicode_common functions

* Make Unicode input mode constants (UC_*) an enum

* Simplify unicode_input_start/finish code

* Make the key used for WinCompose configurable

* Remove UC_OSX_RALT in favor of setting the key with UNICODE_OSX_KEY

* Update Unicode input mode doc

* Add descriptions and rearrange definitions in process_unicode_common.h

* Add registry command to Unicode docs + misc updates

* Reword an explanation in Unicode docs

* Add TODO comment

* Add cycle_unicode_input_mode and UNICODE_SELECTED_MODES macro

* Add an option for making cycle changes persistent

* Add debug prints to functions that change input_mode

* Use cycle_unicode_input_mode in whitefox/konstantin

* Add persist_unicode_input_mode function

* Add offset to cycle to allow stepping in reverse

* Add keycodes: UNICODE_MODE_FORWARD, UNICODE_MODE_REVERSE

Aliases: UC_MOD, UC_RMOD (respectively)

* REVERT ME: Undo changes to whitefox/konstantin to avoid conflicts

* Fix wrong constant name

* Revert "REVERT ME: Undo changes to whitefox/konstantin to avoid conflicts"

This reverts commit 42676bf251.

* Change dprintf text

* Give selected modes priority over EEPROM when !UNICODE_CYCLE_PERSIST

* Remove trailing whitespace

* Cleanup of RALT code and unicode compilation stuff

* Remove else for unicode handling

* leader changes to enable per key timing option

* Changes requested to docs for @drashna

* Changes requested by @drashna

* add temporary compile test shell script

* Extended support of SKIP_VERSION to make invariant compile results during testing.

* build_keyboard.mk, tmk_core/rules.mk: add LIB_SRC, QUANTUM_LIB_SRC support

Support compiled object enclosed in library.

e.g.
```
LIB_SRC += xxxx.c
xxxx.c --> xxxx.o ---> xxxx.a
```

* remove 'ifdef/ifndef USE_I2C' from quantum/split_common/{i2c|serial}.c

* add SKIP_DEBUG_INFO into tmk_core/rules.mk

When SKIP_DEBUG_INFO=yes is specified, do not use the -g option at compile time.

* tmk_core/rules.mk: Library object need -fno-lto

* add SKIP_DEBUG_INFO=yes

* remove temporary compile test shell script

* add '#define SOFT_SERIAL_PIN D0' to keyboards/lets_split/rev?/config.h

* quantum/split_common/serial.c: Changed not to use USE_I2C.

* add temporary compile test shell script

* add 'CONFIG_H += serial_backward_compatibility.h' into common_features.mk:SPLIT_KEYBOARD block

* add quantum/split_common/serial_backward_compatibility.h

SERIAL_PIN_PORT and other PIN define move to serial_backward_compatibility.h
SERIAL_BACKLIT_START move to split_util.h

* quantum/split_common/serial.c change to helix-serial.c style serial configuration

* add temporary file quantum/split_common/split-keyboards-list.txt

* add '#define SOFT_SERIAL_PIN D0' to keyboards/6lit/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/divergetm2/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/ergotravel/rev1/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/foobar/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/handwired/dactyl_manuform/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/handwired/qc60/config.h

* add '//#define SOFT_SERIAL_PIN D0' to keyboards/handwired/xealous/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/iris/rev*/config.h

* add '//#define SOFT_SERIAL_PIN D0' to keyboards/lets_split_eh/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/levinson/rev*/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/miniaxe/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/nyquist/rev?/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/quefrency/rev1/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/qwertyydox/config.h,keyboards/qwertyydox/rev1/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/redox/rev1/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/rorschach/rev1/config.h

* remove '#define SOFT_SERIAL_PIN D0' from quantum/split_common/serial_backward_compatibility.h

* remove temporary file quantum/split_common/split-keyboards-list.txt

* remove temporary compile test shell script

* Revert "remove temporary compile test shell script"

This reverts commit 15b0021b40.

* update quantum/split_common/compile_split_test.sh for new keyboard test

* add '#define SOFT_SERIAL_PIN D0' to keyboards/diverge3/config.h

* add '#define SOFT_SERIAL_PIN D0' to keyboards/40percentclub/25/config.h

* remove temporary compile test shell script

* update docs/config_options.md, quantum/template/avr/config.h

* fix quantum/template/avr/config.h

* fix typo  docs/config_options.md

* Add delay in Tap Code to avoid issues

I think a few people have reporting issues with it working properly, and it may be a timing issue.  The 'register_code' uses this sort of delay in some of the functions, and
this is probably why.

Adding the 100ms delay should hopefully fix any issues with it.

* Make tap_code delay configurable

* Update documentation

* Bring tap_code16 inline with changes

* Fix type for tap_code16

Bad copy-paste job

* Just use the value check for the define

* Clarify timing in docs

Co-Authored-By: drashna <drashna@live.com>

* Wordsmithing

Co-Authored-By: drashna <drashna@live.com>

* Add standard ALGR defition, remove (re)definitions from language files

* Use ALGR(kc) consistently in ALTGR(kc) aliases

* Non-Nordic keymaps should not use NO_ALGR

* Add standard KC_ALGR definition

* Update docs with ALGR and KC_ALGR

* Update SS_ALGR and ALGR_T aliases

* Hacker Dvorak

Programmer Dvorak based layout for the Ergodox EZ.

* Address drashna comments.

* Fix RGB and drop OSL for MO.

* Add gulp file to automate development.

* Fix gulpfile.

* Caps, num and scroll lock indicators.

* Fix scroll lock.

* Make ARM Audio max volume configurable

* Update docs/feature_audio.md

Co-Authored-By: drashna <drashna@live.com>

* Update docs/feature_audio.md

Co-Authored-By: drashna <drashna@live.com>

* Fix up RGB Matrix code

* Convert RGBLIGHT functions to rgbmatrix ones, and add defines

* Refactored M6-B to use Zeal60 RGB backlight code

* Fixed M6-B LED co-ordinates

* Minor changes to RGB config for Zeal65

* Added dynamic keymaps to WT80-A, WT60-A, WT-80A, U80-A

* Macro implementation

* Implemented macros, API protocol version 8, RGB backlight fixes

* Improved radial effects for M6-B

* Fixed undefined references when building an RGB keyboard after M6-A

🙂

* Turn off Mousekeys for jc65

* Turn off Mousekeys for ps2avrGB templates

* Disable mousekeys for bmini and canoe as well

Revert code change that broke UCIS due to bad suggestions

* Allows disabling animations in user space

* Describe disabling effects in the docs

* Allows disabling individual reactive modes

* Adds the list ode defines

* Configurable Rainbow Swirl range

This allows tweaking of the rainbow effect to
 get different effects on keyboards with varied
 LED layouts. We found the value 1950 works on
 the RGBKB.net Sol to get a cool striped effect
 across the keyboard.

* Document RGBLIGHT_RAINBOW_SWIRL_RANGE

* Better wording for the documentation

* Add EEPROM Reset keycode

* Add keycode to docs

* Move EEPROM Reset code to the end of the enum

* Cleanup and naming change