//! calibrates sensors. This function takes 3-4 minutes.
void reconos_calibrate_temperature_sensors(void){
int i, f1, f2;
sensor_array_int m1,m2;
float diode1, diode2;
// init
for (i=0;i<NUM_SENSORS;i++){
gradients[i] = 0;
offsets[i] = 0;
m1[i] = 0;
m2[i] = 0;
}
// measurement m1
stop_heating();
wait_for_stable_temperature(0.3, 20);
diode1 = sysmon_temp_reg() * TEMPERATURE_FACTOR;
diode1 -= 273.15;
#ifdef UPBDBG_RECONOS_DEBUG
diag_printf("\nmake 1st calibration measurement...");
#endif
sensor_measure();
#ifdef UPBDBG_RECONOS_DEBUG
diag_printf("done\r\n");
#endif
for(i = 0; i < NUM_SENSORS; i++){
m1[i] = sensor[i];
}
// measurement m2
start_heating();
wait_for_stable_temperature(0.3, 20);
diode2 = sysmon_temp_reg() * TEMPERATURE_FACTOR;
diode2 -= 273.15;
#ifdef UPBDBG_RECONOS_DEBUG
diag_printf("\nmake 2nd calibration measurement...");
#endif
sensor_measure();
#ifdef UPBDBG_RECONOS_DEBUG
diag_printf("done\n");
#endif
for(i = 0; i < NUM_SENSORS; i++){
m2[i] = sensor[i];
}
stop_heating();
#ifdef UPBDBG_RECONOS_DEBUG
diag_printf("\nsensor calibration (T1=%d.%03d, T2=%d.%03d)\n", (int)diode1, ((int)(diode1*1000))%1000, (int)diode2, ((int)(diode2*1000))%1000);
#endif
// self-calibration
for(i = 0; i < NUM_SENSORS; i++){
f1 = (int) m1[i];
f2 = (int) m2[i];
gradients[i] = (diode2-diode1);
gradients[i] /= (f2-f1);
offsets[i] = diode1;
offsets[i] -= (gradients[i]*m1[i]);
}
}
static void sensor_work_func(struct work_struct *work)
{
struct sensor_data *sensordata = container_of((struct delayed_work *)work, struct sensor_data, work);
axes_t val;
unsigned long delay;
dbg_func_in();
if(input_pdev == NULL) {
cancel_delayed_work_sync(&sensordata->work);
} else {
sensor_measure(sensordata, &val);
input_report_abs(input_pdev, ABS_X, (int)val.x);
input_report_abs(input_pdev, ABS_Y, (int)val.y);
input_report_abs(input_pdev, ABS_Z, (int)val.z);
input_sync(input_pdev);
mutex_lock(&sensordata->data_mutex);
sensordata->lastval = val;
mutex_unlock(&sensordata->data_mutex);
delay = delay_to_jiffies(atomic_read(&sensordata->delay));
schedule_delayed_work(&sensordata->work, delay);
}
dbg_func_out();
}
static void sensor_work_func(struct work_struct *work)
{
struct sensor_data *sensordata = container_of((struct delayed_work *)work, struct sensor_data, work);
axes_t val;
unsigned long delay;
dbg_func_in();
if(input_pdev == NULL) {
cancel_delayed_work_sync(&sensordata->work);
} else {
sensor_measure(sensordata, &val);
#if AT1_BDVER_GE(AT1_WS20) //hhs veeapp read function add 20110316
val_backup.x = val.x;
val_backup.y = val.y;
val_backup.z = val.z;
#endif
input_report_abs(input_pdev, ABS_X, (int)val.x);
input_report_abs(input_pdev, ABS_Y, (int)val.y);
input_report_abs(input_pdev, ABS_Z, (int)val.z);
input_sync(input_pdev);
mutex_lock(&sensordata->data_mutex);
sensordata->lastval = val;
mutex_unlock(&sensordata->data_mutex);
delay = delay_to_jiffies(atomic_read(&sensordata->delay));
schedule_delayed_work(&sensordata->work, delay);
}
dbg_func_out();
}
//! triggers new temperature measurement
void reconos_make_temperature_measurement(void){
sensor_measure();
}