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authorManna Harbour <51143715+manna-harbour@users.noreply.github.com>2020-04-09 18:29:27 +1000
committerGitHub <noreply@github.com>2020-04-09 01:29:27 -0700
commit07c75feba3f2c0b4baf1c230750483004e502020 (patch)
treeb07e03f3463b06077e9bfbfe6170fa3c67a2a1bd
parentb5aa5e4338750f6a7d969a30b2fe96f0f5382405 (diff)
Add PS2_MOUSE_ROTATE to compensate for device orientation (#8650)
* Add PS2_MOUSE_ROTATE to compensate for device orientation * fixup! Add PS2_MOUSE_ROTATE to compensate for device orientation * Reformat with IndentPPDirectives: AfterHash as per #6316
-rw-r--r--docs/feature_ps2_mouse.md19
-rw-r--r--tmk_core/protocol/ps2_mouse.c15
2 files changed, 34 insertions, 0 deletions
diff --git a/docs/feature_ps2_mouse.md b/docs/feature_ps2_mouse.md
index ce072fbe93..c1bd8bff50 100644
--- a/docs/feature_ps2_mouse.md
+++ b/docs/feature_ps2_mouse.md
@@ -266,6 +266,25 @@ To reverse the scroll axes you can put:
into config.h.
+### Rotate Mouse Axes :id=rotate-mouse-axes
+
+Transform the output of the device with a clockwise rotation of 90, 180, or 270
+degrees.
+
+When compensating for device orientation, rotate the output the same amount in
+the opposite direction. E.g. if the normal device orientation is considered to
+be North-facing, compensate as follows:
+
+```c
+#define PS2_MOUSE_ROTATE 270 /* Compensate for East-facing device orientation. */
+```
+```c
+#define PS2_MOUSE_ROTATE 180 /* Compensate for South-facing device orientation. */
+```
+```c
+#define PS2_MOUSE_ROTATE 90 /* Compensate for West-facing device orientation. */
+```
+
### Debug Settings :id=debug-settings
To debug the mouse, add `debug_mouse = true` or enable via bootmagic.
diff --git a/tmk_core/protocol/ps2_mouse.c b/tmk_core/protocol/ps2_mouse.c
index aa3a307ebf..a0e52bc7c3 100644
--- a/tmk_core/protocol/ps2_mouse.c
+++ b/tmk_core/protocol/ps2_mouse.c
@@ -157,6 +157,21 @@ static inline void ps2_mouse_convert_report_to_hid(report_mouse_t *mouse_report)
// invert coordinate of y to conform to USB HID mouse
mouse_report->y = -mouse_report->y;
#endif
+
+#ifdef PS2_MOUSE_ROTATE
+ int8_t x = mouse_report->x;
+ int8_t y = mouse_report->y;
+# if PS2_MOUSE_ROTATE == 90
+ mouse_report->x = y;
+ mouse_report->y = -x;
+# elif PS2_MOUSE_ROTATE == 180
+ mouse_report->x = -x;
+ mouse_report->y = -y;
+# elif PS2_MOUSE_ROTATE == 270
+ mouse_report->x = -y;
+ mouse_report->y = x;
+# endif
+#endif
}
static inline void ps2_mouse_clear_report(report_mouse_t *mouse_report) {