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* Normalise Dynamic Macro keycodes (#18939)Ryan2022-11-031-5/+5
| | | | | | | | | | | | | * `DYN_REC_START1` -> `QK_DYNAMIC_MACRO_RECORD_START_1` * `DYN_REC_START2` -> `QK_DYNAMIC_MACRO_RECORD_START_2` * `DYN_MACRO_PLAY1` -> `QK_DYNAMIC_MACRO_PLAY_1` * `DYN_MACRO_PLAY2` -> `QK_DYNAMIC_MACRO_PLAY_2` * `DYN_REC_STOP` -> `QK_DYNAMIC_MACRO_RECORD_STOP` * Update docs
* Normalise Unicode keycodes (#18898)Ryan2022-10-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * `UC_MOD`/`UC_RMOD` -> `UC_NEXT`/`UC_PREV` * `UNICODE_MODE_*` -> `QK_UNICODE_MODE_*` * `UC_MAC` -> `UNICODE_MODE_MACOS` * `UC_LNX` -> `UNICODE_MODE_LINUX` * `UC_WIN` -> `UNICODE_MODE_WINDOWS` * `UC_BSD` -> `UNICODE_MODE_BSD` * `UC_WINC` -> `UNICODE_MODE_WINCOMPOSE` * `UC_EMACS` -> `UNICODE_MODE_EMACS` * `UC__COUNT` -> `UNICODE_MODE_COUNT` * `UC_M_MA` -> `UC_MAC` * `UC_M_LN` -> `UC_LINX` * `UC_M_WI` -> `UC_WIN` * `UC_M_BS` -> `UC_BSD` * `UC_M_WC` -> `UC_WINC` * `UC_M_EM` -> `UC_EMAC` * Docs * Update quantum/unicode/unicode.h
* Remove rgblight_list.h (#18878)Ryan2022-10-272-5/+5
| | | | | | | | | | | * Remove rgblight_list defines with no usage * Remove rgblight_setrgb_*[_at] defines * Remove rgblight_sethsv_* defines * Remove rgblight_sethsv_noeeprom_* defines * Delete rgblight_list.h and remove all references
* Remove legacy EEPROM clear keycodes (#18782)Ryan2022-10-201-1/+1
| | | | | | | | | | | * `EEP_RST` -> `EE_CLR`, default-ish keymaps * `EEP_RST` -> `EE_CLR`, user keymaps * `EEP_RST` -> `EE_CLR`, community layouts * `EEP_RST` -> `EE_CLR`, userspace * `EEP_RST` -> `EE_CLR`, docs & core
* Remove legacy Debug keycode (#18769)Ryan2022-10-191-1/+1
| | | | | | | | | | | * `DEBUG` -> `DB_TOGG`, default-ish keymaps * `DEBUG` -> `DB_TOGG`, user keymaps * `DEBUG` -> `DB_TOGG`, community layouts * `DEBUG` -> `DB_TOGG`, userspace * `DEBUG` -> `DB_TOGG`, docs & core
* Remove legacy sendstring keycodes (#18749)Ryan2022-10-171-9/+9
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* Remove legacy keycodes, part 6 (#18740)Ryan2022-10-161-1/+1
| | | | | | | | | * `KC_RSHIFT` -> `KC_RSFT` * `KC_RCTRL` -> `KC_RCTL` * `KC_LSHIFT` -> `KC_LSFT` * `KC_LCTRL` -> `KC_LCTL`
* Remove legacy keycodes, part 5 (#18710)Ryan2022-10-154-4/+4
| | | | | * `KC_SLCK` -> `KC_SCRL` * `KC_NLCK` -> `KC_NUM`
* Remove RGBLIGHT_ANIMATION and clean up effect defines for G-K (#18726)Drashna Jaelre2022-10-156-8/+51
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* Remove legacy keycodes, part 4 (#18683)Ryan2022-10-133-3/+3
| | | | | | | | | | | * `KC_PGDOWN` -> `KC_PGDN` * `KC_PSCREEN` -> `KC_PSCR` * `KC_SCOLON` -> `KC_SCLN` * `KC_BSLASH` -> `KC_BSLS` * `KC_BSPACE` -> `KC_BSPC`
* Remove legacy keycodes, part 2 (#18660)Ryan2022-10-101-4/+4
| | | | | | | | | | | | | | | | | | | * `KC_SYSREQ` -> `KC_SYRQ` And one `KC_ALT_ERASE` -> `KC_ERAS` * `KC_NONUS_BSLASH` -> `KC_NUBS` * `KC_NUMLOCK` -> `KC_NUM` * `KC_CLCK` -> `KC_CAPS` * `KC_SCROLLLOCK` -> `KC_SCRL` * `KC_LBRACKET` -> `KC_LBRC` * `KC_RBRACKET` -> `KC_RBRC` * `KC_CAPSLOCK` -> `KC_CAPS`
* Remove legacy USE_SERIAL define (#18292)Dasky2022-09-067-31/+0
| | | | | * Remove legacy USE_SERIAL define * tidy up missed comments
* Clean-up of `#define _ADJUST 16` instances (#18182)James Young2022-08-271-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * enum layer_names: 40percentclub/nori default keymap * enum layer_names: ergotravel default keymap * enum layer_names: handwired/atreus50 default keymap * enum layer_names: handwired/ortho5x13 default keymap * enum layer_names: keebio/levinson default keymap * enum layer_names: keebio/nyquist default keymap * enum layer_names: keebio/rorschach default keymap * enum layer_names: keebio/viterbi default keymap * enum layer_names: keebio/wavelet default keymap * enum layer_names: lets_split default keymap * enum layer_names: maple_computing/launchpad reference keymaps Update `default` and `default_rgb` keymaps. * enum layer_names: maple_computing/minidox default keymap * enum layer_names: miniaxe reference keymaps Update `default` and `underglow` keymaps. * enum layer_names: omkbd/ergodash/mini default keymap * enum layer_names: omkbd/ergodash/rev1 default keymap * enum layer_names: orthodox default keymap * enum layer_names: unikeyboard/divergetm2 default keymap * enum layer_names: woodkeys/scarletbandana default keymap * add _Static_assert to keymap_introspection.c
* RESET -> QK_BOOT user keymaps (#17940)Joel Challis2022-08-2111-14/+14
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* Make default layer size 16-bit (#15286)Drashna Jaelre2022-06-194-4/+4
| | | Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>
* RESET -> QK_BOOT default keymaps (#17037)Joel Challis2022-05-152-2/+2
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* Remove unnecessary backslash-escapes in default keymaps (#15472)Ryan2021-12-142-40/+40
| | | | | | | * Remove unnecessary backslash-escapes in default keymaps * Remove unnecessary backslash-escapes in via keymaps * Remove unnecessary backslash-escapes in default-ish keymaps
* Remove `BOOTMAGIC_ENABLE = lite` option (#15002)James Young2021-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * remove BOOTMAGIC_ENABLE=lite setting * change keyboard BOOTMAGIC_ENABLE rules Edits keyboard-level instances of `BOOTMAGIC_ENABLE = lite` to `BOOTMAGIC_ENABLE = yes`. * change keyboard BOOTMAGIC_ENABLE inline comments Edits keyboard-level BOOTMAGIC_ENABLE inline comments to "Enable Bootmagic Lite". * change keymap BOOTMAGIC_ENABLE rules Edits keymap-level instances of `BOOTMAGIC_ENABLE = lite` to `BOOTMAGIC_ENABLE = yes`. * change keymap BOOTMAGIC_ENABLE inline comments Edits/adds keymap-level BOOTMAGIC_ENABLE inline comments to read "Enable Bootmagic Lite". * change layout/user BOOTMAGIC_ENABLE rules/comments Edits instances of `BOOTMAGIC_ENABLE = lite` to `BOOTMAGIC_ENABLE = yes`. Edits/adds keymap-level BOOTMAGIC_ENABLE inline comments to read "Enable Bootmagic Lite". * update non-rules.mk BOOTMAGIC_ENABLE references in keyboards/ * remove docs references to Full Bootmagic * convert data-driven Bootmagic Lite instances * remove Bootmagic Lite bodge from data-driven generation * Merge remote-tracking branch 'upstream/develop' into rm/bootmagic-full_q4a * update docs/ja/config_options.md per mtei * update docs/faq_misc.md per mtei Remove remaining Full Bootmagic reference.
* Remove Full Bootmagic (#13846)James Young2021-08-064-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * disambiguate Bootmagic rules in keymaps The files edited by this commit were added at a point in time where `BOOTMAGIC_ENABLE = yes` enabled full Bootmagic. This commit edits the files to specify that full Bootmagic is intended. * remove BOOTMAGIC_ENABLE=full setting * unify commented BOOTMAGIC_ENABLE rules in keyboards Explicitly sets `BOOTMAGIC_ENABLE = no` in keyboards where the rule was commented out. Command: ``` find keyboards/ -type f -name 'rules.mk' -and -not -path '*/keymaps/*' -exec sed -i -e 's;#[ \t]*\(BOOTMAGIC_ENABLE\)[ \t=]\+\([a-zA-Z]\+\).*;\1 = no # Virtual DIP switch configuration;g' {} + ``` * remove commented Bootmagic rules from keymap/user level Command: ``` find keyboards/ layouts/ users/ -type f -name 'rules.mk' -exec sed -i -e '/#.*\(BOOTMAGIC_ENABLE\)[ \t=]\+\([a-z]\+\).*/d' {} + ``` * update keyboard BOOTMAGIC_ENABLE rule formatting Sets the formatting of BOOTMAGIC_ENABLE rules to `BOOTMAGIC_ENABLE = [value]`, without the inline comments (which will be replaced later). Command: ``` find keyboards/ -type f -name 'rules.mk' -and -not -path '*/keymaps/*' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE\)[ \t=]\+\([a-z]\+\).*;\1 = \2;g' '{}' + ``` * update keyboards' BOOTMAGIC_ENABLE settings Updates keyboard `rules.mk` files to use `BOOTMAGIC_ENABLE = lite` where `BOOTMAGIC_ENABLE = full` was being used. Command: ``` find keyboards/ -type f -name 'rules.mk' -and -not -path '*/keymaps/*' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE = \)full;\1lite;g' '{}' + ``` * update keymap/user BOOTMAGIC_ENABLE settings Updates keymap/user `rules.mk` files to use `BOOTMAGIC_ENABLE = lite` where `BOOTMAGIC_ENABLE = full` was being used. Commands: ``` find keyboards/ -type f -name 'rules.mk' -and -path '*/keymaps/*' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE[ \t=]\+\)full;\1lite;g' '{}' + find layouts/community/ users/ -type f -name 'rules.mk' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE[ \t=]\+\)full;\1lite;g' '{}' + ``` * remove and replace inline comments in keyboards and keymap/user files Removes and replaces the inline comments, which have been updated to read `Enable Bootmagic Lite`. Commands: ``` find keyboards/ -type f -name 'rules.mk' -and -path '*/keymaps/*' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE\)[ \t=]\+\([a-z]\+\).*;\1 = \2;g' '{}' + find layouts/community/ users/ -type f -name 'rules.mk' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE\)[ \t=]\+\([a-z]\+\).*;\1 = \2;g' '{}' + find keyboards/ layouts/community/ users/ -type f -name 'rules.mk' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE = lite\);\1 # Enable Bootmagic Lite;g' '{}' + find keyboards/ layouts/community/ users/ -type f -name 'rules.mk' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE = yes\);\1 # Enable Bootmagic Lite;g' '{}' + find keyboards/ layouts/community/ users/ -type f -name 'rules.mk' -exec sed -i -e 's;\(BOOTMAGIC_ENABLE = no\);\1 # Enable Bootmagic Lite;g' '{}' + ``` * rename improperly named makefiles Some files intended to be used as makefiles had improper names causing them to not be used as intended when building. This commit corrects the filenames of the affected files. * update renamed file with new rule formatting * update QMK's template files Updates QMK's `rules.mk` templates to use the new inline comment. * update QMK Docs - remove documentation of full Bootmagic - update links to Bootmagic Lite doc - add doc for Magic Keycodes * rules.mk patch for coarse/ixora and coarse/vinta
* [Bug] Develop - Change uint32_t to layer_state_t (#13596)Xelus222021-07-192-2/+2
| | | | | * fix sat75 * update uint32_t to layer_state
* Remove KEYMAP and LAYOUT_kc (#12160)Zach White2021-05-1112-621/+30
| | | | | * alias KEYMAP to LAYOUT * remove KEYMAP and LAYOUT_kc
* Change `BOOTMAGIC_ENABLE=yes` to use Bootmagic Lite (#12172)James Young2021-04-121-1/+1
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* [Keymap] remove kc layout from levinson jyh keymap (#12301)Jason Yamada-Hanff2021-04-021-70/+57
| | | Co-authored-by: Jason Yamada-Hanff <jyamada-hanff@chromologic.com>
* Audio system overhaul (#11820)Drashna Jaelre2021-02-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Redo Arm DAC implementation for additive, wavetable synthesis, sample playback changes by Jack Humbert on an implementation for DAC audio on arm/chibios platforms this commits bundles the changes from the arm-dac-work branch focused on audio/audio_arm.* into one commit (leaving out the test-keyboard) f52faeb5d (origin/arm-dac-work) add sample and wavetable examples, parsers for both -> only the changes on audio_arm_.*, the keyboard related parts are split off to a separate commit bfe468ef1 start morphing wavetable 474d100b5 refined a bit 208bee10f play_notes working 3e6478b0b start in-place documentation of dac settings 3e1826a33 fixed blip (rounding error), other waves, added key selection (left/right) 73853d651 5 voices at 44.1khz dfb401b95 limit voices to working number 9632b3379 configuration for the ez 6241f3f3b notes working in a new way * Redo Arm DAC implementation for additive, wavetable synthesis, sample playback changes by Jack Humbert on an implementation for DAC audio on arm/chibios platforms this commit splits off the plank example keymap from commit f52faeb5d (origin/arm-dac-work) add sample and wavetable examples, parsers for both * refactoring: rename audio_ to reflect their supported hardware-platform and audio-generation method: avr vs arm, and pwm vs dac * refactoring: deducplicate ISR code to update the pwm duty-cycle and period in the avr-pwm-implementation pulls three copies of the same code into one function which should improve readability and maintainability :-) * refactoring: move common code of arm and avr implementation into a separate/new file * refactoring: audio_avr_pwm, renaming defines to decouple them from actually used timers, registers and ISRs * refactoring: audio_avr_pwm - replacing function defines with plain register defines aligns better with other existing qmk code (and the new audio_arm_pwm) doing similar pwm thing * add audio-arm-pwm since not all STM32 have a DAC onboard (STM32F2xx and STM32F3xx), pwm-audio is an alternative (STM32F1xx) this code works on a "BluePill" clone, with an STM32F103C8B * clang-format changes on quantum/audio/* only * audio_arm_dac: stopping the notes caused screeching when using the DAC audio paths * audio_arm_pwm: use pushpull on the pin; so that a piezzo can be hooked up direclty without additional components (opendrain would require an external pullup) * refactoring: remove unused file from/for atmel-avr chips * refactoring: remove unused (avr) wavetable file * audio_arm_dac: adapt dac_end callback to changed chibios DAC api the previous chibios (17.6.0) passed along a pointer into the buffer plus a sample_count (which are/already where included in the DACDrivre object) - the current chibios (19.1.0) only passes the driver object. this patch ports more or less exactly what the previous chibios ISR code did: either have the user-callback work the first or second half of the buffer (dacsample_t pointer, with half the DAC_BUFFER_SIZE samples) by adjusting the pointer and sample count * audio-arm-dac: show a compile-warning on undefined audio-pins Co-Authored-By: Drashna Jaelre <drashna@live.com> * audio_arm_dac: switch from exemplary wavetable generation to sine only sine+triangle+squrare is exemplary, and not realy fit for "production" use 'stairs' are usefull for debugging (hardware, with an oscilloscope) * audio_arm_dac: enable output buffers in the STM32 to drive external loads without any additional ciruitry - external opamps and such * audio: prevent out-of-bounds array access * audio_arm_dac: add output-frequency correcting factor * audio_arm_pwm: get both the alternate-function and pm-callback variants back into working condition and do some code-cleanup, refine documentation, ... * audio_arm_pwm: increase pwm frequency for "higher fidelity" on the previous .frequency=100000 higher frequency musical notes came out wrong (frequency measured on a Tektronix TDS2014B) note | freq | arm-pwm C2 | 65.4 | 65.491 C5 | 523.25 | 523.93 C6 | 1046.5 | 1053.38 C7 | 2093 | 2129 C8 | 4186 | 4350.91 with .frequency = 500000 C8 | 4186 | 4204.6 * audio refactoring: remove unused variables * audio_arm_dac: calibrate note tempo: with a tempo of 60beats-per-second a whole-note should last for exactly one second * audio: allow feature selection in rules.mk so the user can switch the audio driver between DAC and PWM on STM32 boards which support both (STM32F2 and up) or select the "pin alternate" pwm mode, for example on STM32F103 * audio-refactoring: move codeblocks in audio.[ch] into more coherent groups and add some inline documentation * audio-refactoring: cleanup and streamline common code between audio_arm_[dac|pwm] untangeling the relation between audio.c and the two drivers and adding more documenting comments :-) * audio_avr_pwm: getting it back into working condition, and cleanup+refactor * audio-refactoring: documentation and typo fixes Co-Authored-By: Nick Brassel <nick@tzarc.org> * audio-refactoring: cleanup defines, inludes and remove debug-prints * audio_chibios_dac: define&use a minimal sampling rate, based on the available tone-range to ease up on the cpu-load, while still rendering the higher notes/tones sufficiently also reenable the lower tones, since with the new implementation there is no evidence of them still beeing 'bugged' * audio-refactoring: one common AUDIO_MAX_VOICES define for all audio-drivers * audio-chibios-pwm: pwm-pin-allternate: make the the timer, timer-channel and alternate function user-#definable * audio_chibios_dac: math.h has fmod for this * Redo Arm DAC implementation for additive, wavetable synthesis, sample playback update Jack Humberts dac-example keymaps for the slight changes in the audio-dac interface * audio-refactoring: use a common AUDIO_PIN configuration switch instead of defines have the user select a pin by configuration in rules.mk instead of a define in config.h has the advantage of beeing in a common form/pattern across all audio-driver implementations * audio-refactoring: switch backlight_avr.c to the new AUDIO_PIN defines * audio-common: have advance_note return a boolean if the note changed, to the next one in the melody beeing played * audio-chibios-pwm: fix issue with ~130ms silence between note/frequency changes while playing a SONG through trial,error and a scope/logic analyzer figured out Chibios-PWMDriver (at least in the current version) misbehaves if the initial period is set to zero (or one; two seems to work); when thats the case subsequent calls to 'pwmChhangePeriod' + pwmEnableChannel took ~135ms of silence, before the PWM continued with the new frequency... * audio-refactoring: get 'play_note' working again with a limited number of available voices (say AUDIO_VOICES_MAX=1) allow new frequencies to be played, by discarding the oldest one in the 'frequencies' queue * audio: set the fallback driver to DAC for chibios and PWM for all others (==avr at the moment) * audio-refactoring: moore documentation and some cleanup * audio-avr-pwm: no fallback on unset AUDIO_PIN this seems to be the expected behaviour by some keyboards (looking at ckeys/handwire_101:default) which otherwise fail to build because the firmware-image ends up beeing too large for the atmega... so we fail silently instead to keep travis happy * audio-refactoring: untangling terminology: voice->tone the code actually was working on tones (combination of pitch/frequency, duration, timbre, intensity/volume) and not voices (characteristic sound of an instrument; think piano vs guitar, which can be played together, each having its own "track" = voice on a music sheet) * audio-pwm: allow freq=0 aka a pause/rest in a SONG continue processing, but do not enable pwm units, since freq=0 wouldn't produce any sound anyway (and lead to division by zero on that occasion) * audio-refactoring: audio_advance_note -> audio_advance_state since it does not only affect 'one note', but the internally kept state as a whole * audio-refactoring: untangling terminology: polyphony the feature om the "inherited" avr code has little to do with polyphony (see wikipedia), but is more a time-multiplexing feature, to work around hardware limitations - like only having one pwm channel, that could on its own only reproduce one voice/instrument at a time * audio-chibios-dac: add zero-crossing feature have tones only change/stop when the waveform approaches zero - to avoid audible clicks note that this also requires the samples to start at zero, since the internally kept index into the samples is reset to zero too * audio-refactoring: feature: time-multiplexing of tones on a single output channel this feature was in the original avr-pwm implementation misnomed as "polyphony" with polyphony_rate and so on; did the same thing though: time-multiplexing multiple active notes so that a single output channel could reproduce more than one note at a time (which is not the same as a polyphony - see wikipedia :-) ) * audio-avr-pwm: get music-mode working (again) on AVRs with both pwm channels, or either one of the two :-) play_notes worked already - but music_mode uses play_note * audio-refactoring: split define MAX_SIMULTANEOUS_TONES -> TONE_STACKSIZE since the two cases are independant from one another, the hardware might impose limitations on the number of simultaneously reproducable tones, but the audio state should be able to track an unrelated number of notes recently started by play_note * audio-arm-dac: per define selectable sample-luts plus generation script in ./util * audio-refactoring: heh, avr has a MIN... * audio-refactoring: add basic dac audio-driver based on the current/master implementation whereas current=d96380e65496912e0f68e6531565f4b45efd1623 which is the state of things before this whole audio-refactoring branch boiled down to interface with the refactored audio system = removing all redundant state-managing and frequency calculation * audio-refactoring: rename audio-drivers to driver_$PLATFORM_$DRIVER * audio-arm-pwm: split the software/hardware implementations into separate files which saves us partially from a 'define hell', with the tradeoff that now two somewhat similar chibios_pwm implementations have to be maintained * audio-refactoring: update documentation * audio-arm-dac: apply AUDIO_PIN defines to driver_chibios_dac_basic * audio-arm-dac: dac_additive: stop the hardware when the last sample completed the audio system calls for a driver_stop, which is delayed until the current sample conversion finishes * audio-refactoring: make function-namespace consistent - all (public) audio functions start with audio_ - also refactoring play*_notes/tones to play*_melody, to visually distance it a bit from play*_tone/_note * audio-refactoring: consistent define namespace: DAC_ -> AUDIO_DAC_ * audio-arm-dac: update (inline) documentation regarding MAX for sample values * audio-chibios-dac: remove zero-crossing feature didn't quite work as intended anyway, and stopping the hardware on close-to-zero seems to be enought anyway * audio-arm-dac: dac_basic: respect the configured sample-rate * audio-arm-pwm: have 'note_timbre' influence the pwm-duty cycle like it already does in the avr implementation * audio-refactoring: get VIBRATO working (again) with all drivers (verified with chibios_[dac|pwm]) * audio-arm-dac: zero-crossing feature (Mk II) wait for the generated waveform to approach 'zero' before either turning off the output+timer or switching to the current set of active_tones * audio-refactoring: re-add note-resting -> introduce short_rest inbetween - introduce a short pause/rest between two notes of the same frequency, to separate them audibly - also updating the refactoring comments * audio-refactoring: cleanup refactoring remnants remove the former avr-isr code block - since all its features are now refactored into the different parts of the current system also updates the TODOS * audio-refactoring: reserve negative numbers as unitialized frequencies to allow the valid tone/frequency f=0Hz == rest/pause * audio-refactoring: FIX: first note of melody was missing the first note was missing because 'goto_next_note'=false overrode a state_change=true of the initial play_tone and some code-indentations/cleanup of related parts * audio-arm-dac: fix hardware init-click due to wron .init= value * audio-refactoring: new conveniance function: audio_play_click which can be used to further refactor/remove fauxclicky (avr on