#define TOUCH_STATE_START 0x30
#define TOUCH_STATE_DRAG 0x40
+/* Number of high-resolution events for each low-resolution detent. */
+#define SCROLL_HR_STEPS 10
+#define SCROLL_HR_MULT (120 / SCROLL_HR_STEPS)
#define SCROLL_ACCEL_DEFAULT 7
/* Touch surface information. Dimension is in hundredths of a mm, min and max
short y;
short scroll_x;
short scroll_y;
+ short scroll_x_hr;
+ short scroll_y_hr;
u8 size;
} touches[16];
int tracking_ids[16];
unsigned long now = jiffies;
int step_x = msc->touches[id].scroll_x - x;
int step_y = msc->touches[id].scroll_y - y;
+ int step_hr = ((64 - (int)scroll_speed) * msc->scroll_accel) /
+ SCROLL_HR_STEPS;
+ int step_x_hr = msc->touches[id].scroll_x_hr - x;
+ int step_y_hr = msc->touches[id].scroll_y_hr - y;
/* Calculate and apply the scroll motion. */
switch (state) {
case TOUCH_STATE_START:
msc->touches[id].scroll_x = x;
msc->touches[id].scroll_y = y;
+ msc->touches[id].scroll_x_hr = x;
+ msc->touches[id].scroll_y_hr = y;
/* Reset acceleration after half a second. */
if (scroll_acceleration && time_before(now,
msc->scroll_jiffies = now;
input_report_rel(input, REL_WHEEL, step_y);
}
+
+ step_x_hr /= step_hr;
+ if (step_x_hr != 0) {
+ msc->touches[id].scroll_x_hr -= step_x_hr *
+ step_hr;
+ input_report_rel(input,
+ REL_HWHEEL_HI_RES,
+ -step_x_hr * SCROLL_HR_MULT);
+ }
+
+ step_y_hr /= step_hr;
+ if (step_y_hr != 0) {
+ msc->touches[id].scroll_y_hr -= step_y_hr *
+ step_hr;
+ input_report_rel(input,
+ REL_WHEEL_HI_RES,
+ step_y_hr * SCROLL_HR_MULT);
+ }
break;
}
}
if (emulate_scroll_wheel) {
__set_bit(REL_WHEEL, input->relbit);
__set_bit(REL_HWHEEL, input->relbit);
+ __set_bit(REL_WHEEL_HI_RES, input->relbit);
+ __set_bit(REL_HWHEEL_HI_RES, input->relbit);
}
} else if (input->id.product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
/* setting the device name to ensure the same driver settings