/** Handle lux value changed event
*
* @param lux ambient light value
*/
static void als_lux_changed(unsigned lux)
{
als_lux_latest = (int)lux;
mce_log(LL_DEBUG, "lux=%d", als_lux_latest);
run_datapipes();
}
/** Get filtered ALS state and feed it to datapipes
*
* @param lux sensor reading, or -1 for no-data
*/
static void inputflt_sampling_output(int lux)
{
lux = inputflt_filter(lux);
if( als_lux_latest == lux )
goto EXIT;
mce_log(LL_DEBUG, "output: %d -> %d", als_lux_latest, lux);
als_lux_latest = lux;
run_datapipes();
execute_datapipe(&ambient_light_sensor_pipe,
GINT_TO_POINTER(als_lux_latest),
USE_INDATA, CACHE_INDATA);
EXIT:
return;
}
/** Check if ALS sensor should be enabled or disabled
*/
static void rethink_als_status(void)
{
static gboolean enable_old = FALSE;
gboolean enable_new = FALSE;
gboolean want_data = FALSE;
if( !have_als )
goto EXIT;
if( use_als_flag ) {
switch( display_state_next ) {
case MCE_DISPLAY_ON:
case MCE_DISPLAY_DIM:
case MCE_DISPLAY_POWER_UP:
case MCE_DISPLAY_LPM_OFF:
case MCE_DISPLAY_LPM_ON:
want_data = TRUE;
break;
default:
case MCE_DISPLAY_POWER_DOWN:
case MCE_DISPLAY_OFF:
case MCE_DISPLAY_UNDEF:
want_data = FALSE;
break;
}
}
if( want_data )
enable_new = TRUE;
mce_log(LL_DEBUG, "use=%d, want=%d -> enable=%d",
use_als_flag, want_data, enable_new);
if( want_data ) {
/* The sensor has been off for some time, so the
* history needs to be forgotten when we get fresh
* data */
inputflt_flush_on_change();
/* Enable change notifications */
mce_sensorfw_als_set_notify(als_lux_changed);
}
else {
/* Disable change notifications */
mce_sensorfw_als_set_notify(0);
/* Force cached value re-evaluation */
als_lux_changed(-1);
/* Stop sampling timer */
inputflt_sampling_stop();
}
if( enable_old == enable_new )
goto EXIT;
enable_old = enable_new;
if( enable_new ) {
mce_sensorfw_als_enable();
}
else {
mce_sensorfw_als_disable();
/* Clear thresholds so that the next reading from
* als will not be affected by previous state */
als_filter_clear_threshold(&lut_display);
als_filter_clear_threshold(&lut_led);
als_filter_clear_threshold(&lut_key);
als_filter_clear_threshold(&lut_lpm);
}
run_datapipes();
EXIT:
return;
}
/** Check if ALS sensor should be enabled or disabled
*/
static void rethink_als_status(void)
{
static gboolean enable_old = FALSE;
gboolean enable_new = FALSE;
gboolean want_data = FALSE;
if( !have_als )
goto EXIT;
if( use_als_flag ) {
switch( display_state ) {
case MCE_DISPLAY_ON:
case MCE_DISPLAY_DIM:
want_data = TRUE;
break;
default:
case MCE_DISPLAY_OFF:
case MCE_DISPLAY_LPM_OFF:
case MCE_DISPLAY_LPM_ON:
case MCE_DISPLAY_UNDEF:
want_data = FALSE;
break;
}
}
if( want_data || ext_als_enablers )
enable_new = TRUE;
mce_log(LL_DEBUG, "use=%d, want=%d ext=%d -> enable=%d",
use_als_flag, want_data, ext_als_enablers ? 1 : 0,
enable_new);
if( want_data )
mce_sensorfw_als_set_notify(als_lux_changed);
else
mce_sensorfw_als_set_notify(0);
if( enable_old == enable_new )
goto EXIT;
enable_old = enable_new;
if( enable_new ) {
mce_sensorfw_als_enable();
}
else {
mce_sensorfw_als_disable();
/* Clear thresholds so that the next reading from
* als will not be affected by previous state */
als_filter_clear_threshold(&lut_display);
als_filter_clear_threshold(&lut_led);
als_filter_clear_threshold(&lut_key);
}
run_datapipes();
EXIT:
return;
}
