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pixcir driver : filter 2 pixels change in report

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This commit is contained in:
zhanghao 2012-02-03 17:43:15 +08:00
parent d6c8ccb25a
commit 5a5e390ea9
1 changed files with 8 additions and 2 deletions
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10
drivers/input/touchscreen/pixcir_i2c_ts.c
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@ -70,13 +70,14 @@ struct point_data{
unsigned char id; //finger ID
int posx;
int posy;
int lastx;
int lasty;
unsigned char active;
unsigned char pre_active;
};
static struct point_data point[MAX_SUPPORT_POINT];
struct i2c_dev
{
struct list_head list;
@ -272,12 +273,17 @@ static void pixcir_ts_poscheck(struct pixcir_i2c_ts_data *data)
input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER, false);
}
if (point[i].active) {
if (point[i].active && (
abs(point[i].posx - point[i].lastx) > 2 ||
abs(point[i].posy - point[i].lasty) > 2
)) {
input_mt_slot(tsdata->input, point[i].id);
input_mt_report_slot_state(tsdata->input, MT_TOOL_FINGER, true);
input_report_abs(tsdata->input, ABS_MT_TOUCH_MAJOR, 1);
input_report_abs(tsdata->input, ABS_MT_POSITION_X, point[i].posy);
input_report_abs(tsdata->input, ABS_MT_POSITION_Y, point[i].posx);
point[i].lastx = point[i].posx;
point[i].lasty = point[i].posy;
}
DBG("%d[id = %d] = %2d active= %d pre_active = %d x = %5d y = %5d \n",