qmk_firmware/keyboards/tzarc/djinn
Jeff Epler 9632360caa
Use a macro to compute the size of arrays at compile time (#18044)
* Add ARRAY_SIZE and CEILING utility macros

* Apply a coccinelle patch to use ARRAY_SIZE

* fix up some straggling items

* Fix 'make test:secure'

* Enhance ARRAY_SIZE macro to reject acting on pointers

The previous definition would not produce a diagnostic for
```
int *p;
size_t num_elem = ARRAY_SIZE(p)
```
but the new one will.

* explicitly get definition of ARRAY_SIZE

* Convert to ARRAY_SIZE when const is involved

The following spatch finds additional instances where the array is
const and the division is by the size of the type, not the size of
the first element:
```
@ rule5a using "empty.iso" @
type T;
const T[] E;
@@

- (sizeof(E)/sizeof(T))
+ ARRAY_SIZE(E)

@ rule6a using "empty.iso" @
type T;
const T[] E;
@@

- sizeof(E)/sizeof(T)
+ ARRAY_SIZE(E)
```

* New instances of ARRAY_SIZE added since initial spatch run

* Use `ARRAY_SIZE` in docs (found by grep)

* Manually use ARRAY_SIZE

hs_set is expected to be the same size as uint16_t, though it's made
of two 8-bit integers

* Just like char, sizeof(uint8_t) is guaranteed to be 1

This is at least true on any plausible system where qmk is actually used.

Per my understanding it's universally true, assuming that uint8_t exists:
https://stackoverflow.com/questions/48655310/can-i-assume-that-sizeofuint8-t-1

* Run qmk-format on core C files touched in this branch

Co-authored-by: Stefan Kerkmann <karlk90@pm.me>
2022-08-30 10:20:04 +02:00
..
graphics [Fix] Patches after printf library update (#17584) 2022-07-07 14:14:09 +02:00
keymaps/default Fix up Djinn fuse handling. (#17465) 2022-06-24 14:11:06 +10:00
rev1
rev2
config.h
djinn.c Merge remote-tracking branch 'origin/master' into develop 2022-06-24 04:11:58 +00:00
djinn.h
djinn_portscan_matrix.c Use a macro to compute the size of arrays at compile time (#18044) 2022-08-30 10:20:04 +02:00
djinn_split_sync.c
djinn_usbpd.c
halconf.h
info.json
mcuconf.h
readme.md
rules.mk

Djinn

Djinn

The Djinn is a 64-key split keyboard -- dual 4x7 with a 4-key thumb cluster and encoders. It also has a 5-way tactile switch under the thumb. Oh, and two displays.

Keyboard Maintainer: tzarc
Hardware Supported: Djinn: rev1, rev2
Hardware Availability: Open-source

Make example for this keyboard (after setting up your build environment):

make tzarc/djinn/rev2:default

Flashing example for this keyboard:

make tzarc/djinn/rev2:default:flash

See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.

Bootloader

Enter the bootloader in 3 ways:

  • Bootmagic reset: Hold down the top-left key and plug in the keyboard.
  • Physical reset button: Briefly press the button on the back of the PCB.
  • Keycode in layout: Press the key mapped to QK_BOOT if it is available.