1 files changed, 0 insertions, 151 deletions
diff --git a/users/drashna/pimoroni_trackball.c b/users/drashna/pimoroni_trackball.c
deleted file mode 100644
index a6ca6c9966..0000000000
--- a/users/drashna/pimoroni_trackball.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/* 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/>.
- */
-
-#include "pimoroni_trackball.h"
-#include "i2c_master.h"
-
-static uint8_t scrolling      = 0;
-static int16_t x_offset       = 0;
-static int16_t y_offset       = 0;
-static int16_t h_offset       = 0;
-static int16_t v_offset       = 0;
-static float   precisionSpeed = 1;
-
-#ifndef I2C_TIMEOUT
-#    define I2C_TIMEOUT 100
-#endif
-#ifndef MOUSE_DEBOUNCE
-#    define MOUSE_DEBOUNCE 5
-#endif
-
-void trackball_set_rgbw(uint8_t red, uint8_t green, uint8_t blue, uint8_t white) {
-    uint8_t data[] = {0x00, red, green, blue, white};
-    i2c_transmit(TRACKBALL_ADDRESS << 1, data, sizeof(data), I2C_TIMEOUT);
-}
-
-int16_t mouse_offset(uint8_t positive, uint8_t negative, int16_t scale) {
-    int16_t offset    = (int16_t)positive - (int16_t)negative;
-    int16_t magnitude = (int16_t)(scale * offset * offset * precisionSpeed);
-    return offset < 0 ? -magnitude : magnitude;
-}
-
-void update_member(int8_t* member, int16_t* offset) {
-    if (*offset > 127) {
-        *member = 127;
-        *offset -= 127;
-    } else if (*offset < -127) {
-        *member = -127;
-        *offset += 127;
-    } else {
-        *member = *offset;
-        *offset = 0;
-    }
-}
-
-__attribute__((weak)) void trackball_check_click(bool pressed, report_mouse_t* mouse) {
-    if (pressed) {
-        mouse->buttons |= MOUSE_BTN1;
-    } else {
-        mouse->buttons &= ~MOUSE_BTN1;
-    }
-}
-
-void trackball_register_button(bool pressed, enum mouse_buttons button) {
-    report_mouse_t currentReport = pointing_device_get_report();
-    if (pressed) {
-        currentReport.buttons |= button;
-    } else {
-        currentReport.buttons &= ~button;
-    }
-    pointing_device_set_report(currentReport);
-}
-
-float trackball_get_precision(void) { return precisionSpeed; }
-void  trackball_set_precision(float precision) { precisionSpeed = precision; }
-bool  trackball_is_scrolling(void) { return scrolling; }
-void  trackball_set_scrolling(bool scroll) { scrolling = scroll; }
-
-bool has_report_changed (report_mouse_t first, report_mouse_t second) {
-    return !(
-        (!first.buttons && first.buttons == second.buttons) &&
-        (!first.x && first.x == second.x) &&
-        (!first.y && first.y == second.y) &&
-        (!first.h && first.h == second.h) &&
-        (!first.v && first.v == second.v) );
-}
-
-
-__attribute__((weak)) void pointing_device_init(void) { trackball_set_rgbw(0x00, 0x00, 0x00, 0x4F); }
-
-void pointing_device_task(void) {
-    static bool     debounce;
-    static uint16_t debounce_timer;
-    uint8_t         state[5] = {};
-    if (i2c_readReg(TRACKBALL_ADDRESS << 1, 0x04, state, 5, I2C_TIMEOUT) == I2C_STATUS_SUCCESS) {
-        if (!state[4] && !debounce) {
-            if (scrolling) {
-#ifdef PIMORONI_TRACKBALL_INVERT_X
-                h_offset += mouse_offset(state[2], state[3], 1);
-#else
-                h_offset -= mouse_offset(state[2], state[3], 1);
-#endif
-#ifdef PIMORONI_TRACKBALL_INVERT_Y
-                v_offset += mouse_offset(state[1], state[0], 1);
-#else
-                v_offset -= mouse_offset(state[1], state[0], 1);
-#endif
-            } else {
-#ifdef PIMORONI_TRACKBALL_INVERT_X
-                x_offset -= mouse_offset(state[2], state[3], 5);
-#else
-                x_offset += mouse_offset(state[2], state[3], 5);
-#endif
-#ifdef PIMORONI_TRACKBALL_INVERT_Y
-                y_offset -= mouse_offset(state[1], state[0], 5);
-#else
-                y_offset += mouse_offset(state[1], state[0], 5);
-#endif
-            }
-        } else {
-            if (state[4]) {
-                debounce       = true;
-                debounce_timer = timer_read();
-            }
-        }
-    }
-
-    if (timer_elapsed(debounce_timer) > MOUSE_DEBOUNCE) debounce = false;
-
-    report_mouse_t mouse = pointing_device_get_report();
-
-    trackball_check_click(state[4] & (1 << 7), &mouse);
-
-#ifndef PIMORONI_TRACKBALL_ROTATE
-    update_member(&mouse.x, &x_offset);
-    update_member(&mouse.y, &y_offset);
-    update_member(&mouse.h, &h_offset);
-    update_member(&mouse.v, &v_offset);
-#else
-    update_member(&mouse.x, &y_offset);
-    update_member(&mouse.y, &x_offset);
-    update_member(&mouse.h, &v_offset);
-    update_member(&mouse.v, &h_offset);
-#endif
-    pointing_device_set_report(mouse);
-    if (has_report_changed(mouse, pointing_device_get_report())) {
-        pointing_device_send();
-    }
-}