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qmk_firmware/quantum/process_keycode/process_midi.h
Jack Humbert 65faab3b89 Moves features to their own files (process_*), adds tap dance feature (#460) 
* non-working commit

* working

* subprojects implemented for planck

* pass a subproject variable through to c

* consolidates clueboard revisions

* thanks for letting me know about conflicts..

* turn off audio for yang's

* corrects starting paths for subprojects

* messing around with travis

* semicolon

* travis script

* travis script

* script for travis

* correct directory (probably), amend files to commit

* remove origin before adding

* git pull, correct syntax

* git checkout

* git pull origin branch

* where are we?

* where are we?

* merging

* force things to happen

* adds commit message, adds add

* rebase, no commit message

* rebase branch

* idk!

* try just pull

* fetch - merge

* specify repo branch

* checkout

* goddammit

* merge? idk

* pls

* after all

* don't split up keyboards

* syntax

* adds quick for all-keyboards

* trying out new script

* script update

* lowercase

* all keyboards

* stop replacing compiled.hex automatically

* adds if statement

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* forces push to automated build branch

* throw an add in there

* upstream?

* adds AUTOGEN

* ignore all .hex files again

* testing out new repo

* global ident

* generate script, keyboard_keymap.hex

* skip generation for now, print pandoc info, submodule update

* try trusty

* and sudo

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* updates subprojects to keyboards

* no idea

* updates to keyboards

* cleans up clueboard stuff

* setup to use local readme

* updates cluepad, planck experimental

* remove extra led.c [ci skip]

* audio and midi moved over to separate files

* chording, leader, unicode separated

* consolidate each [skip ci]

* correct include

* quantum: Add a tap dance feature (#451)

* quantum: Add a tap dance feature

With this feature one can specify keys that behave differently, based on
the amount of times they have been tapped, and when interrupted, they
get handled before the interrupter.

To make it clear how this is different from `ACTION_FUNCTION_TAP`, lets
explore a certain setup! We want one key to send `Space` on single tap,
but `Enter` on double-tap.

With `ACTION_FUNCTION_TAP`, it is quite a rain-dance to set this up, and
has the problem that when the sequence is interrupted, the interrupting
key will be send first. Thus, `SPC a` will result in `a SPC` being sent,
if they are typed within `TAPPING_TERM`. With the tap dance feature,
that'll come out as `SPC a`, correctly.

The implementation hooks into two parts of the system, to achieve this:
into `process_record_quantum()`, and the matrix scan. We need the latter
to be able to time out a tap sequence even when a key is not being
pressed, so `SPC` alone will time out and register after `TAPPING_TERM`
time.

But lets start with how to use it, first!

First, you will need `TAP_DANCE_ENABLE=yes` in your `Makefile`, because
the feature is disabled by default. This adds a little less than 1k to
the firmware size. Next, you will want to define some tap-dance keys,
which is easiest to do with the `TD()` macro, that - similar to `F()`,
takes a number, which will later be used as an index into the
`tap_dance_actions` array.

This array specifies what actions shall be taken when a tap-dance key is
in action. Currently, there are two possible options:

* `ACTION_TAP_DANCE_DOUBLE(kc1, kc2)`: Sends the `kc1` keycode when
  tapped once, `kc2` otherwise.
* `ACTION_TAP_DANCE_FN(fn)`: Calls the specified function - defined in
  the user keymap - with the current state of the tap-dance action.

The first option is enough for a lot of cases, that just want dual
roles. For example, `ACTION_TAP_DANCE(KC_SPC, KC_ENT)` will result in
`Space` being sent on single-tap, `Enter` otherwise.

And that's the bulk of it!

Do note, however, that this implementation does have some consequences:
keys do not register until either they reach the tapping ceiling, or
they time out. This means that if you hold the key, nothing happens, no
repeat, no nothing. It is possible to detect held state, and register an
action then too, but that's not implemented yet. Keys also unregister
immediately after being registered, so you can't even hold the second
tap. This is intentional, to be consistent.

And now, on to the explanation of how it works!

The main entry point is `process_tap_dance()`, called from
`process_record_quantum()`, which is run for every keypress, and our
handler gets to run early. This function checks whether the key pressed
is a tap-dance key. If it is not, and a tap-dance was in action, we
handle that first, and enqueue the newly pressed key. If it is a
tap-dance key, then we check if it is the same as the already active
one (if there's one active, that is). If it is not, we fire off the old
one first, then register the new one. If it was the same, we increment
the counter and the timer.

This means that you have `TAPPING_TERM` time to tap the key again, you
do not have to input all the taps within that timeframe. This allows for
longer tap counts, with minimal impact on responsiveness.

Our next stop is `matrix_scan_tap_dance()`. This handles the timeout of
tap-dance keys.

For the sake of flexibility, tap-dance actions can be either a pair of
keycodes, or a user function. The latter allows one to handle higher tap
counts, or do extra things, like blink the LEDs, fiddle with the
backlighting, and so on. This is accomplished by using an union, and
some clever macros.

In the end, lets see a full example!

```c
enum {
 CT_SE = 0,
 CT_CLN,
 CT_EGG
};

/* Have the above three on the keymap, TD(CT_SE), etc... */

void dance_cln (qk_tap_dance_state_t *state) {
  if (state->count == 1) {
    register_code (KC_RSFT);
    register_code (KC_SCLN);
    unregister_code (KC_SCLN);
    unregister_code (KC_RSFT);
  } else {
    register_code (KC_SCLN);
    unregister_code (KC_SCLN);
    reset_tap_dance (state);
  }
}

void dance_egg (qk_tap_dance_state_t *state) {
  if (state->count >= 100) {
    SEND_STRING ("Safety dance!");
    reset_tap_dance (state);
  }
}

const qk_tap_dance_action_t tap_dance_actions[] = {
  [CT_SE]  = ACTION_TAP_DANCE_DOUBLE (KC_SPC, KC_ENT)
 ,[CT_CLN] = ACTION_TAP_DANCE_FN (dance_cln)
 ,[CT_EGG] = ACTION_TAP_DANCE_FN (dance_egg)
};
```

This addresses #426.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

* hhkb: Fix the build with the new tap-dance feature

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

* tap_dance: Move process_tap_dance further down

Process the tap dance stuff after midi and audio, because those don't
process keycodes, but row/col positions.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

* tap_dance: Use conditionals instead of dummy functions

To be consistent with how the rest of the quantum features are
implemented, use ifdefs instead of dummy functions.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>

* Merge branch 'master' into quantum-keypress-process

# Conflicts:
#	Makefile
#	keyboards/planck/rev3/config.h
#	keyboards/planck/rev4/config.h

* update build script
2016-06-29 17:49:41 -04:00

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8.4 KiB
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#ifndef PROCESS_MIDI_H
#define PROCESS_MIDI_H
#include "quantum.h"
bool process_midi(uint16_t keycode, keyrecord_t *record);
#define MIDI(n) ((n) | 0x6000)
#define MIDI12 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000, 0x6000
#define CHNL(note, channel) (note + (channel << 8))
#define SCALE (int8_t []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
0 + (12*3), 2 + (12*3), 4 + (12*3), 5 + (12*3), 7 + (12*3), 9 + (12*3), 11 + (12*3), \
0 + (12*4), 2 + (12*4), 4 + (12*4), 5 + (12*4), 7 + (12*4), 9 + (12*4), 11 + (12*4), }
#define N_CN1 (0x600C + (12 * -1) + 0 )
#define N_CN1S (0x600C + (12 * -1) + 1 )
#define N_DN1F (0x600C + (12 * -1) + 1 )
#define N_DN1 (0x600C + (12 * -1) + 2 )
#define N_DN1S (0x600C + (12 * -1) + 3 )
#define N_EN1F (0x600C + (12 * -1) + 3 )
#define N_EN1 (0x600C + (12 * -1) + 4 )
#define N_FN1 (0x600C + (12 * -1) + 5 )
#define N_FN1S (0x600C + (12 * -1) + 6 )
#define N_GN1F (0x600C + (12 * -1) + 6 )
#define N_GN1 (0x600C + (12 * -1) + 7 )
#define N_GN1S (0x600C + (12 * -1) + 8 )
#define N_AN1F (0x600C + (12 * -1) + 8 )
#define N_AN1 (0x600C + (12 * -1) + 9 )
#define N_AN1S (0x600C + (12 * -1) + 10)
#define N_BN1F (0x600C + (12 * -1) + 10)
#define N_BN1 (0x600C + (12 * -1) + 11)
#define N_C0 (0x600C + (12 * 0) + 0 )
#define N_C0S (0x600C + (12 * 0) + 1 )
#define N_D0F (0x600C + (12 * 0) + 1 )
#define N_D0 (0x600C + (12 * 0) + 2 )
#define N_D0S (0x600C + (12 * 0) + 3 )
#define N_E0F (0x600C + (12 * 0) + 3 )
#define N_E0 (0x600C + (12 * 0) + 4 )
#define N_F0 (0x600C + (12 * 0) + 5 )
#define N_F0S (0x600C + (12 * 0) + 6 )
#define N_G0F (0x600C + (12 * 0) + 6 )
#define N_G0 (0x600C + (12 * 0) + 7 )
#define N_G0S (0x600C + (12 * 0) + 8 )
#define N_A0F (0x600C + (12 * 0) + 8 )
#define N_A0 (0x600C + (12 * 0) + 9 )
#define N_A0S (0x600C + (12 * 0) + 10)
#define N_B0F (0x600C + (12 * 0) + 10)
#define N_B0 (0x600C + (12 * 0) + 11)
#define N_C1 (0x600C + (12 * 1) + 0 )
#define N_C1S (0x600C + (12 * 1) + 1 )
#define N_D1F (0x600C + (12 * 1) + 1 )
#define N_D1 (0x600C + (12 * 1) + 2 )
#define N_D1S (0x600C + (12 * 1) + 3 )
#define N_E1F (0x600C + (12 * 1) + 3 )
#define N_E1 (0x600C + (12 * 1) + 4 )
#define N_F1 (0x600C + (12 * 1) + 5 )
#define N_F1S (0x600C + (12 * 1) + 6 )
#define N_G1F (0x600C + (12 * 1) + 6 )
#define N_G1 (0x600C + (12 * 1) + 7 )
#define N_G1S (0x600C + (12 * 1) + 8 )
#define N_A1F (0x600C + (12 * 1) + 8 )
#define N_A1 (0x600C + (12 * 1) + 9 )
#define N_A1S (0x600C + (12 * 1) + 10)
#define N_B1F (0x600C + (12 * 1) + 10)
#define N_B1 (0x600C + (12 * 1) + 11)
#define N_C2 (0x600C + (12 * 2) + 0 )
#define N_C2S (0x600C + (12 * 2) + 1 )
#define N_D2F (0x600C + (12 * 2) + 1 )
#define N_D2 (0x600C + (12 * 2) + 2 )
#define N_D2S (0x600C + (12 * 2) + 3 )
#define N_E2F (0x600C + (12 * 2) + 3 )
#define N_E2 (0x600C + (12 * 2) + 4 )
#define N_F2 (0x600C + (12 * 2) + 5 )
#define N_F2S (0x600C + (12 * 2) + 6 )
#define N_G2F (0x600C + (12 * 2) + 6 )
#define N_G2 (0x600C + (12 * 2) + 7 )
#define N_G2S (0x600C + (12 * 2) + 8 )
#define N_A2F (0x600C + (12 * 2) + 8 )
#define N_A2 (0x600C + (12 * 2) + 9 )
#define N_A2S (0x600C + (12 * 2) + 10)
#define N_B2F (0x600C + (12 * 2) + 10)
#define N_B2 (0x600C + (12 * 2) + 11)
#define N_C3 (0x600C + (12 * 3) + 0 )
#define N_C3S (0x600C + (12 * 3) + 1 )
#define N_D3F (0x600C + (12 * 3) + 1 )
#define N_D3 (0x600C + (12 * 3) + 2 )
#define N_D3S (0x600C + (12 * 3) + 3 )
#define N_E3F (0x600C + (12 * 3) + 3 )
#define N_E3 (0x600C + (12 * 3) + 4 )
#define N_F3 (0x600C + (12 * 3) + 5 )
#define N_F3S (0x600C + (12 * 3) + 6 )
#define N_G3F (0x600C + (12 * 3) + 6 )
#define N_G3 (0x600C + (12 * 3) + 7 )
#define N_G3S (0x600C + (12 * 3) + 8 )
#define N_A3F (0x600C + (12 * 3) + 8 )
#define N_A3 (0x600C + (12 * 3) + 9 )
#define N_A3S (0x600C + (12 * 3) + 10)
#define N_B3F (0x600C + (12 * 3) + 10)
#define N_B3 (0x600C + (12 * 3) + 11)
#define N_C4 (0x600C + (12 * 4) + 0 )
#define N_C4S (0x600C + (12 * 4) + 1 )
#define N_D4F (0x600C + (12 * 4) + 1 )
#define N_D4 (0x600C + (12 * 4) + 2 )
#define N_D4S (0x600C + (12 * 4) + 3 )
#define N_E4F (0x600C + (12 * 4) + 3 )
#define N_E4 (0x600C + (12 * 4) + 4 )
#define N_F4 (0x600C + (12 * 4) + 5 )
#define N_F4S (0x600C + (12 * 4) + 6 )
#define N_G4F (0x600C + (12 * 4) + 6 )
#define N_G4 (0x600C + (12 * 4) + 7 )
#define N_G4S (0x600C + (12 * 4) + 8 )
#define N_A4F (0x600C + (12 * 4) + 8 )
#define N_A4 (0x600C + (12 * 4) + 9 )
#define N_A4S (0x600C + (12 * 4) + 10)
#define N_B4F (0x600C + (12 * 4) + 10)
#define N_B4 (0x600C + (12 * 4) + 11)
#define N_C5 (0x600C + (12 * 5) + 0 )
#define N_C5S (0x600C + (12 * 5) + 1 )
#define N_D5F (0x600C + (12 * 5) + 1 )
#define N_D5 (0x600C + (12 * 5) + 2 )
#define N_D5S (0x600C + (12 * 5) + 3 )
#define N_E5F (0x600C + (12 * 5) + 3 )
#define N_E5 (0x600C + (12 * 5) + 4 )
#define N_F5 (0x600C + (12 * 5) + 5 )
#define N_F5S (0x600C + (12 * 5) + 6 )
#define N_G5F (0x600C + (12 * 5) + 6 )
#define N_G5 (0x600C + (12 * 5) + 7 )
#define N_G5S (0x600C + (12 * 5) + 8 )
#define N_A5F (0x600C + (12 * 5) + 8 )
#define N_A5 (0x600C + (12 * 5) + 9 )
#define N_A5S (0x600C + (12 * 5) + 10)
#define N_B5F (0x600C + (12 * 5) + 10)
#define N_B5 (0x600C + (12 * 5) + 11)
#define N_C6 (0x600C + (12 * 6) + 0 )
#define N_C6S (0x600C + (12 * 6) + 1 )
#define N_D6F (0x600C + (12 * 6) + 1 )
#define N_D6 (0x600C + (12 * 6) + 2 )
#define N_D6S (0x600C + (12 * 6) + 3 )
#define N_E6F (0x600C + (12 * 6) + 3 )
#define N_E6 (0x600C + (12 * 6) + 4 )
#define N_F6 (0x600C + (12 * 6) + 5 )
#define N_F6S (0x600C + (12 * 6) + 6 )
#define N_G6F (0x600C + (12 * 6) + 6 )
#define N_G6 (0x600C + (12 * 6) + 7 )
#define N_G6S (0x600C + (12 * 6) + 8 )
#define N_A6F (0x600C + (12 * 6) + 8 )
#define N_A6 (0x600C + (12 * 6) + 9 )
#define N_A6S (0x600C + (12 * 6) + 10)
#define N_B6F (0x600C + (12 * 6) + 10)
#define N_B6 (0x600C + (12 * 6) + 11)
#define N_C7 (0x600C + (12 * 7) + 0 )
#define N_C7S (0x600C + (12 * 7) + 1 )
#define N_D7F (0x600C + (12 * 7) + 1 )
#define N_D7 (0x600C + (12 * 7) + 2 )
#define N_D7S (0x600C + (12 * 7) + 3 )
#define N_E7F (0x600C + (12 * 7) + 3 )
#define N_E7 (0x600C + (12 * 7) + 4 )
#define N_F7 (0x600C + (12 * 7) + 5 )
#define N_F7S (0x600C + (12 * 7) + 6 )
#define N_G7F (0x600C + (12 * 7) + 6 )
#define N_G7 (0x600C + (12 * 7) + 7 )
#define N_G7S (0x600C + (12 * 7) + 8 )
#define N_A7F (0x600C + (12 * 7) + 8 )
#define N_A7 (0x600C + (12 * 7) + 9 )
#define N_A7S (0x600C + (12 * 7) + 10)
#define N_B7F (0x600C + (12 * 7) + 10)
#define N_B7 (0x600C + (12 * 7) + 11)
#define N_C8 (0x600C + (12 * 8) + 0 )
#define N_C8S (0x600C + (12 * 8) + 1 )
#define N_D8F (0x600C + (12 * 8) + 1 )
#define N_D8 (0x600C + (12 * 8) + 2 )
#define N_D8S (0x600C + (12 * 8) + 3 )
#define N_E8F (0x600C + (12 * 8) + 3 )
#define N_E8 (0x600C + (12 * 8) + 4 )
#define N_F8 (0x600C + (12 * 8) + 5 )
#define N_F8S (0x600C + (12 * 8) + 6 )
#define N_G8F (0x600C + (12 * 8) + 6 )
#define N_G8 (0x600C + (12 * 8) + 7 )
#define N_G8S (0x600C + (12 * 8) + 8 )
#define N_A8F (0x600C + (12 * 8) + 8 )
#define N_A8 (0x600C + (12 * 8) + 9 )
#define N_A8S (0x600C + (12 * 8) + 10)
#define N_B8F (0x600C + (12 * 8) + 10)
#define N_B8 (0x600C + (12 * 8) + 11)
#define N_C8 (0x600C + (12 * 8) + 0 )
#define N_C8S (0x600C + (12 * 8) + 1 )
#define N_D8F (0x600C + (12 * 8) + 1 )
#define N_D8 (0x600C + (12 * 8) + 2 )
#define N_D8S (0x600C + (12 * 8) + 3 )
#define N_E8F (0x600C + (12 * 8) + 3 )
#define N_E8 (0x600C + (12 * 8) + 4 )
#define N_F8 (0x600C + (12 * 8) + 5 )
#define N_F8S (0x600C + (12 * 8) + 6 )
#define N_G8F (0x600C + (12 * 8) + 6 )
#define N_G8 (0x600C + (12 * 8) + 7 )
#define N_G8S (0x600C + (12 * 8) + 8 )
#define N_A8F (0x600C + (12 * 8) + 8 )
#define N_A8 (0x600C + (12 * 8) + 9 )
#define N_A8S (0x600C + (12 * 8) + 10)
#define N_B8F (0x600C + (12 * 8) + 10)
#define N_B8 (0x600C + (12 * 8) + 11)
#endif
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