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-rw-r--r--drivers/sensors/pimoroni_trackball.c22
-rw-r--r--drivers/sensors/pimoroni_trackball.h9
2 files changed, 22 insertions, 9 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);
}
diff --git a/drivers/sensors/pimoroni_trackball.h b/drivers/sensors/pimoroni_trackball.h
index 59ee8724ba..e20ee748a7 100644
--- a/drivers/sensors/pimoroni_trackball.h
+++ b/drivers/sensors/pimoroni_trackball.h
@@ -23,9 +23,6 @@
#ifndef PIMORONI_TRACKBALL_ADDRESS
# define PIMORONI_TRACKBALL_ADDRESS 0x0A
#endif
-#ifndef PIMORONI_TRACKBALL_INTERVAL_MS
-# define PIMORONI_TRACKBALL_INTERVAL_MS 8
-#endif
#ifndef PIMORONI_TRACKBALL_SCALE
# define PIMORONI_TRACKBALL_SCALE 5
#endif
@@ -52,10 +49,10 @@ typedef struct {
uint8_t click;
} pimoroni_data_t;
-void pimironi_trackball_device_init(void);
+void pimoroni_trackball_device_init(void);
void pimoroni_trackball_set_rgbw(uint8_t red, uint8_t green, uint8_t blue, uint8_t white);
int16_t pimoroni_trackball_get_offsets(uint8_t negative_dir, uint8_t positive_dir, uint8_t scale);
void pimoroni_trackball_adapt_values(int8_t* mouse, int16_t* offset);
-float pimoroni_trackball_get_precision(void);
-void pimoroni_trackball_set_precision(float precision);
+uint16_t pimoroni_trackball_get_cpi(void);
+void pimoroni_trackball_set_cpi(uint16_t cpi);
i2c_status_t read_pimoroni_trackball(pimoroni_data_t* data);