static void po188_report_data(int iCurVoltage)
{
input_report_abs(po188_driver.input_dev, ABS_MISC, iCurVoltage);
input_sync(po188_driver.input_dev);
//po188_driver.last_voltage = po188_driver.voltage_now;
PO188_DMSG(" report light value to HAL (%d)\n", iCurVoltage);
}
/* Begin: leyihua modified for Linux Kernel 3.0, begin 2011/11/26 */
static long po188_ioctl(struct file* file, unsigned int cmd,
unsigned long param)
/* End: leyihua modified for Linux Kernel 3.0, end 2011/11/26 */
{
//PO188_DMSG("!!!!!!!!!!!!!!!!!!!!!!!!%s Entry ...\n",__FUNCTION__);
int ret = 0;
//int mv;
static int start_flag = 0;
switch (cmd)
{
case IOCTL_CLOSE_PO188:
destroy_workqueue(po188_driver.po188_wq);
break;
/* begin: added by z00168965 for light sensor HAL */
case LIGHTSENSOR_IOCTL_ENABLE:
/* end: added by z00168965 for light sensor HAL */
case SENSORS_GET_LUX_FIR:
if(1 == param)
{
PO188_DMSG(" ************* active enable, close_finished_flag = 1\n");
po188_driver.status_on = true;
po188_driver.vol_flag = true;
if (start_flag)
{
mod_timer(&po188_driver.timer, jiffies + SENSOR_POLLING_JIFFIES);
}
else
{
mod_timer(&po188_driver.timer, jiffies + START_SENSOR_POLLING_JIFFIES);
}
}
if( 0==param )
{
PO188_DMSG(" ************* active disable close_finished_flag = 0\n");
del_timer(&po188_driver.timer);
po188_driver.status_on = false;
po188_driver.vol_flag = false;
}
ret = 1;
break;
case IOCTL_RESET_PO188:
if (down_trylock(&po188_driver.run_sem))
{
ret = -EBUSY;
}
up(&po188_driver.run_sem);
break;
case IOCTL_PO188_SLEEP_TIME:
if (down_trylock(&po188_driver.run_sem))
{
ret = -EBUSY;
}
if (param == 0)
{
up(&po188_driver.run_sem);
ret = -EINVAL;
}
po188_driver.sleep_time = param;
printk("set count=%d\n", po188_driver.sleep_time);
up(&po188_driver.run_sem);
break;
/* begin: added by z00168965 for light sensor HAL */
case LIGHTSENSOR_IOCTL_GET_ENABLED:
put_user(1, (unsigned long __user *)param);
break;
/* end: added by z00168965 for light sensor HAL */
default:
printk("%s CMD INVALID.\n", __FUNCTION__);
ret = -EINVAL;
break;
}
start_flag = 1;
return ret;
}
static void
po188_wait_for_event(struct work_struct *work)
{
static int voltage[TIMES];
static int i=0;
static int j=0;
//static int status=0;
//static bool autodect=0;
int k;
int sum=0;
mod_timer(&po188_driver.timer, jiffies + SENSOR_POLLING_JIFFIES);
po188_get_sensor_status();
/*po188_driver.voltage_now = po188_get_fsr(po188_driver.voltage_now);*/
po188_driver.voltage_now = po188_get_pro_level(po188_driver.voltage_now);
voltage[i++%TIMES]=po188_driver.voltage_now;
if(j<TIMES)
{
j++;
}
if( j<TIMES )
{
for(k=0;k<j;k++)
{
sum += voltage[k];
}
po188_driver.current_voltage = sum / k;
}
else
{
for(k=0;k<TIMES;k++)
{
sum += voltage[k];
}
po188_driver.current_voltage = sum / TIMES;
}
if( (po188_driver.last_voltage - po188_driver.current_voltage >= 60) ||
(po188_driver.current_voltage - po188_driver.last_voltage >= 60) )
{
input_report_abs(po188_driver.input_dev, ABS_MISC, po188_driver.voltage_now);
input_sync(po188_driver.input_dev);
/*status++;
if(status == TIMES)
{
autodect = 0;
status = 0;
}
else
{
autodect = 1;
}*/
po188_driver.last_voltage = po188_driver.voltage_now;
PO188_DMSG(" *************inner we can report light info to HAL (%d)\n", po188_driver.voltage_now);
}
if( po188_driver.vol_flag == true )
{
//input_report_rel(po188_driver.input_dev, REL_LIGHT, 10);
//input_sync(po188_driver.input_dev);
input_report_abs(po188_driver.input_dev, ABS_MISC, po188_driver.voltage_now);
input_sync(po188_driver.input_dev);
/* begin: z00168965 for debug temporarily */
//po188_driver.vol_flag = false;
/* end: z00168965 for debug temporarily */
po188_driver.last_voltage = po188_driver.voltage_now;
}
//po188_driver.last_voltage = po188_driver.current_voltage;
PO188_DMSG(" *************outer we can report light info to HAL (%d)\n", po188_driver.voltage_now);
}
static long po188_ioctl(struct file* file, unsigned int cmd, unsigned long param)
{
int ret = 0;
int flags = 0;
void __user *argp = (void __user *)param;
int iDelayTime = 0;
switch (cmd)
{
case LIGHTSENSOR_IOCTL_ENABLE:
if (copy_from_user(&flags, argp, sizeof(flags)))
{
ret = -EFAULT;
}
else
{
if ( 0==flags )
{
PO188_DMSG("active disable pol88\n");
spin_lock(&po188_driver.s_lock);
po188_driver.status_on = false;
spin_unlock(&po188_driver.s_lock);
cancel_work_sync(&po188_cb_work);
flush_workqueue(po188_driver.po188_wq);
del_timer(&po188_driver.timer);
ret = k3_adc_close_channal(PO188_ADC_CHANNEL);
if (ret < 0)
{
PO188_ERRMSG("k3_adc_close_channal error\n");
}
ret = regulator_disable(gPo188Regulator);
if (ret < 0) {
PO188_ERRMSG("disable po188 vcc drive error");
}
}
else if (1 == flags)
{
PO188_DMSG("active enable pol88\n");
ret = regulator_enable(gPo188Regulator);
if (ret < 0) {
PO188_ERRMSG("enable po188 vcc drive error");
return ret;//regulator_enable error, return.
}
ret = k3_adc_open_channel(PO188_ADC_CHANNEL);
if (ret < 0)
{
PO188_ERRMSG("k3_adc_open_channel error\n");
regulator_disable(gPo188Regulator);
return ret;
}
mod_timer(&po188_driver.timer, jiffies + msecs_to_jiffies(po188_driver.delay_time));
spin_lock(&po188_driver.s_lock);
po188_driver.status_on = true;
spin_unlock(&po188_driver.s_lock);
}
}
break;
case LIGHTSENSOR_IOCTL_GET_ENABLED:
spin_lock(&po188_driver.s_lock);
flags = po188_driver.status_on;
spin_unlock(&po188_driver.s_lock);
if (copy_to_user(argp, &flags, sizeof(flags)))
{
ret = -EFAULT;
}
break;
case LIGHTSENSOR_IOCTL_GET_DELAY:
spin_lock(&po188_driver.s_lock);
iDelayTime = po188_driver.delay_time;
spin_unlock(&po188_driver.s_lock);
if (copy_to_user(argp, &iDelayTime, sizeof(iDelayTime)))
{
ret = -EFAULT;
}
break;
case LIGHTSENSOR_IOCTL_SET_DELAY:
if (copy_from_user(&iDelayTime, argp, sizeof(iDelayTime)))
{
ret = -EFAULT;
}
else
{
spin_lock(&po188_driver.s_lock);
po188_driver.delay_time = iDelayTime;
spin_unlock(&po188_driver.s_lock);
}
break;
default:
PO188_ERRMSG("CMD INVALID.\n");
ret = -EINVAL;
break;
}
return ret;
}