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[Feature] Swap buttons on PS2 Mouse/Trackball #9205

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Merged
merged 13 commits into from
Aug 5, 2021
Merged

[Feature] Swap buttons on PS2 Mouse/Trackball #9205

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7600c04
[Feature Request] Swap buttons on PS2 Mouse/Trackball
May 26, 2020
de9d50a
[Feature Request] Swap buttons on PS2 Mouse/Trackball
May 26, 2020
beff95a
Added id: to the doc
May 26, 2020
2fa53fd
Missing space
May 26, 2020
351b635
Solve comment
May 27, 2020
7811e9f
Solve comments https://github.com/qmk/qmk_firmware/pull/9205#discussi…
May 27, 2020
3999300
Format code more according to https://docs.qmk.fm/#/coding_conventions_c
May 28, 2020
222cc2f
change logic to LUT
May 28, 2020
d0ed90a
WIP: Clean up
May 29, 2020
94c625e
WIP: Solution with xor operators to mask the change
May 29, 2020
b649448
delete #endif & added the missed xor operator (ahhh)
May 29, 2020
0351a32
Variable (mouse_report->buttons): avoid setting twice https://github.…
May 30, 2020
c4e7a81
Update tmk_core/protocol/ps2_mouse.c
jkutianski Aug 5, 2021
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10 changes: 10 additions & 0 deletions docs/feature_ps2_mouse.md
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Original file line number Diff line number Diff line change
Expand Up @@ -246,6 +246,16 @@ Fine control over the scrolling is supported with the following defines:
#define PS2_MOUSE_SCROLL_DIVISOR_V 2
```

### Invert Mouse buttons :id=invert-buttons

To invert the left & right buttons you can put:

```c
#define PS2_MOUSE_INVERT_BUTTONS
```

into config.h.

### Invert Mouse and Scroll Axes :id=invert-mouse-and-scroll-axes

To invert the X and Y axes you can put:
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6 changes: 6 additions & 0 deletions tmk_core/protocol/ps2_mouse.c
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Expand Up @@ -147,8 +147,14 @@ static inline void ps2_mouse_convert_report_to_hid(report_mouse_t *mouse_report)
mouse_report->x = X_IS_NEG ? ((!X_IS_OVF && -127 <= mouse_report->x && mouse_report->x <= -1) ? mouse_report->x : -127) : ((!X_IS_OVF && 0 <= mouse_report->x && mouse_report->x <= 127) ? mouse_report->x : 127);
mouse_report->y = Y_IS_NEG ? ((!Y_IS_OVF && -127 <= mouse_report->y && mouse_report->y <= -1) ? mouse_report->y : -127) : ((!Y_IS_OVF && 0 <= mouse_report->y && mouse_report->y <= 127) ? mouse_report->y : 127);

#ifdef PS2_MOUSE_INVERT_BUTTONS
// swap left & rigth buttons & remove sign and overflow flags
uint8_t btns_change = ((mouse_report->buttons >> PS2_MOUSE_BTN_LEFT) ^ (mouse_report->buttons >> PS2_MOUSE_BTN_RIGHT)) & 1;
mouse_report->buttons = (mouse_report->buttons ^ ((btns_change << PS2_MOUSE_BTN_LEFT) | (btns_change << PS2_MOUSE_BTN_RIGHT))) & PS2_MOUSE_BTN_MASK;
#else
// remove sign and overflow flags
mouse_report->buttons &= PS2_MOUSE_BTN_MASK;
#endif

#ifdef PS2_MOUSE_INVERT_X
mouse_report->x = -mouse_report->x;
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