1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/sensors/pimoroni_trackball.h b/drivers/sensors/pimoroni_trackball.h
new file mode 100644
index 000000000..a30fb0bb8
--- /dev/null
+++ b/drivers/sensors/pimoroni_trackball.h
@@ -0,0 +1,35 @@
+/* Copyright 2020 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "quantum.h"
+#include "pointing_device.h"
+
+#ifndef TRACKBALL_ADDRESS
+#    define TRACKBALL_ADDRESS 0x0A
+#endif
+#define TRACKBALL_WRITE ((TRACKBALL_ADDRESS << 1) | I2C_WRITE)
+#define TRACKBALL_READ ((TRACKBALL_ADDRESS << 1) | I2C_READ)
+
+void trackball_set_rgbw(uint8_t red, uint8_t green, uint8_t blue, uint8_t white);
+void trackball_check_click(bool pressed, report_mouse_t *mouse);
+void trackball_register_button(bool pressed, enum mouse_buttons button);
+
+float trackball_get_precision(void);
+void  trackball_set_precision(float precision);
+bool  trackball_is_scrolling(void);
+void  trackball_set_scrolling(bool scroll);