diff options
| author | Dasky <32983009+daskygit@users.noreply.github.com> | 2021-12-27 01:05:51 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-12-27 12:05:51 +1100 |
| commit | 7f7364c55912879baaff8fafca550d02f17b4d44 (patch) | |
| tree | 8afd414f6b202a126632a8c047dcf200312c78ff /drivers/sensors/pimoroni_trackball.c | |
| parent | 76a673233c8cb3d97130a6dece364c24b29f5fd7 (diff) | |
[Core] Split support for pointing devices. (#15304)
* Draft implementation
* formatting
* fix combined buttons
* remove pimoroni throttle
* sync pointing on a throttle loop with checksum
* no longer used
* doh
Co-authored-by: Drashna Jaelre <drashna@live.com>
* switch pimoroni to a cpi equivalent
* add cpi support
* allow user modification of seperate mouse reports
* a little tidy up
* add *_RIGHT defines.
* docs
* doxygen comments
* basic changelog
* clean up pimoroni
* small doc fixes
* Update docs/feature_pointing_device.md
Co-authored-by: Drashna Jaelre <drashna@live.com>
* performance tweak if side has usb
* Don't run init funtions on wrong side
* renamed some variables for consistency
* fix pimoroni typos
* Clamp instead of OR
* Promote combined values to uint16_t
* Update pointing_device.c
Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Nick Brassel <nick@tzarc.org>
Diffstat (limited to 'drivers/sensors/pimoroni_trackball.c')
| -rw-r--r-- | drivers/sensors/pimoroni_trackball.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/sensors/pimoroni_trackball.c b/drivers/sensors/pimoroni_trackball.c index 7d390056ea..2867e763bc 100644 --- a/drivers/sensors/pimoroni_trackball.c +++ b/drivers/sensors/pimoroni_trackball.c @@ -33,8 +33,24 @@ static uint16_t precision = 128; -float pimoroni_trackball_get_precision(void) { return ((float)precision / 128); } -void pimoroni_trackball_set_precision(float floatprecision) { precision = (floatprecision * 128); } +uint16_t pimoroni_trackball_get_cpi(void) { return (precision * 125); } +/** + * @brief Sets the scaling value for pimoroni trackball + * + * Sets a scaling value for pimoroni trackball to allow runtime adjustment. This isn't used by the sensor and is an + * approximation so the functions are consistent across drivers. + * + * NOTE: This rounds down to the nearest number divisable by 125 that's a positive integer, values below 125 are clamped to 125. + * + * @param cpi uint16_t + */ +void pimoroni_trackball_set_cpi(uint16_t cpi) { + if (cpi < 249) { + precision = 1; + } else { + precision = (cpi - (cpi % 125)) / 125; + } +} void pimoroni_trackball_set_rgbw(uint8_t r, uint8_t g, uint8_t b, uint8_t w) { uint8_t data[4] = {r, g, b, w}; @@ -60,7 +76,7 @@ i2c_status_t read_pimoroni_trackball(pimoroni_data_t* data) { return status; } -__attribute__((weak)) void pimironi_trackball_device_init(void) { +__attribute__((weak)) void pimoroni_trackball_device_init(void) { i2c_init(); pimoroni_trackball_set_rgbw(0x00, 0x00, 0x00, 0x00); } |