int fpc1020_input_task(fpc1020_data_t *fpc1020) {
int error = 0;
dev_dbg(&fpc1020->spi->dev, "%s\n", __func__);
while (!fpc1020->worker.stop_request && fpc1020->input.enabled
&& (error >= 0)) {
error = fpc1020_write_nav_setup(fpc1020);
if (!error) {
error = fpc1020_wait_finger_present(fpc1020);
}
if (!error) {
// Send key to wake device
input_report_key(fpc1020->input_dev, FPC1020_KEY_FINGER_PRESENT, 1);
input_report_key(fpc1020->input_dev, FPC1020_KEY_FINGER_PRESENT, 0);
input_sync(fpc1020->input_dev);
error = fpc1020_input_loop(fpc1020);
}
}
if (error < 0) {
dev_err(&fpc1020->spi->dev, "%s %s (%d)\n", __func__,
(error == -EINTR) ? "TERMINATED" : "FAILED", error);
}
fpc1020->input.enabled = false;
return error;
}
int fpc1020_capture_nav_wait_finger_down(fpc1020_data_t* fpc1020)
{
int error = 0;
error = fpc1020_wait_finger_present(fpc1020);
fpc1020_read_irq(fpc1020, true);
return (error >= 0) ? 0 : error;
}
int fpc1020_capture_wait_finger_down(fpc1020_data_t *fpc1020)
{
int error = 0;
int thold = 32;
int addthred = 30;
if( fpc1020->setup.finger_auto_threshold ){
error = fpc1020_read_irq(fpc1020, true);
if (error < 0)
goto out_error;
error = fpc1020_cmd(fpc1020,
FPC1020_CMD_FINGER_PRESENT_QUERY,
FPC_1020_IRQ_REG_BIT_COMMAND_DONE);
if (error < 0)
goto out_error;
error = fpc1020_capture_set_crop(fpc1020,fpc1020->setup.wakeup_detect_cols[0],1,fpc1020->setup.wakeup_detect_rows[0],8);
if (error < 0)
goto out_error;
error = cal_thredhold(fpc1020);
if (error < 0)
goto out_error;
thold = error;
error = fpc1020_capture_set_crop(fpc1020,fpc1020->setup.wakeup_detect_cols[1],1,fpc1020->setup.wakeup_detect_rows[1],8);
if (error < 0)
goto out_error;
error = cal_thredhold(fpc1020);
if (error < 0)
goto out_error;
if(error > thold)
thold = error;
thold += addthred;
if(thold < fpc1020->fp_thredhold && thold >= addthred)
fpc1020->fp_thredhold = thold;
printk("fingerprint fp_thredhold =%d default_hold=%d det1=[%d,1,%d,8] det2=[%d,1,%d,8]\n",\
fpc1020->fp_thredhold,fpc1020->setup.finger_detect_threshold,\
fpc1020->setup.wakeup_detect_cols[0],fpc1020->setup.wakeup_detect_rows[0],\
fpc1020->setup.wakeup_detect_cols[1],fpc1020->setup.wakeup_detect_rows[1]);
fpc1020_wake_up(fpc1020);
fpc1020_write_sensor_setup(fpc1020);
}
error = fpc1020_wait_finger_present(fpc1020);
fpc1020_read_irq(fpc1020, true);
out_error:
return (error >= 0) ? 0 : error;
}
int fpc1020_capture_wait_finger_down(fpc1020_data_t *fpc1020)
{
int error;
bool finger_down = false;
error = fpc1020_wait_finger_present(fpc1020);
while (!finger_down && (error >= 0)) {
if (fpc1020->worker.stop_request)
error = -EINTR;
else
error = fpc1020_check_finger_present_sum(fpc1020);
if (error > fpc1020->setup.capture_finger_down_threshold)
finger_down = true;
else
msleep(FPC1020_CAPTURE_WAIT_FINGER_DELAY_MS);
}
fpc1020_read_irq(fpc1020, true);
return (finger_down) ? 0 : error;
}
