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/*
* Copyright 2012 Samsung Electronics Co., Ltd
*
* Licensed under the Flora License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.tizenopensource.org/license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdbool.h>
#include <stdio.h>
#include <limits.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <fcntl.h>
#include <glib.h>
#include <vconf.h>
#include <sensor.h>
#include "pm_core.h"
#include "pm_device_plugin.h"
#define SAMPLING_INTERVAL 1 /* 1 sec */
#define MAX_FAULT 5
static int (*prev_init_extention) (void *data);
static int (*_default_action) (int);
static int alc_timeout_id = 0;
static int sf_handle = -1;
static int max_brightness = 10;
static int fault_count = 0;
static gboolean alc_handler(gpointer data)
{
int value = 0;
static int cur_index = 1;
static int old_index = 1;
sensor_data_t light_data;
if (cur_state != S_NORMAL){
if (alc_timeout_id != 0)
g_source_remove(alc_timeout_id);
alc_timeout_id = 0;
} else {
if (sf_get_data(sf_handle, LIGHT_BASE_DATA_SET, &light_data) < 0) {
fault_count++;
} else {
if (light_data.values[0] < 0.0 || light_data.values[0] > 10.0) {
LOGINFO("fail to load light data : %d", (int)light_data.values[0]);
fault_count++;
} else {
int tmp_value;
value = max_brightness * (int)light_data.values[0] / 10;
plugin_intf->OEM_sys_get_backlight_brightness(DEFAULT_DISPLAY, &tmp_value);
if (tmp_value != value) {
set_default_brt(value);
backlight_restore();
}
LOGINFO("load light data : %d, brightness : %d", (int)light_data.values[0], value);
}
}
}
if (fault_count > MAX_FAULT) {
if (alc_timeout_id != 0)
g_source_remove(alc_timeout_id);
alc_timeout_id = 0;
vconf_set_bool(VCONFKEY_SETAPPL_BRIGHTNESS_AUTOMATIC_BOOL, 0);
LOGERR("Fault counts is over 5, disable automatic brightness");
return FALSE;
}
if (alc_timeout_id != 0)
return TRUE;
return FALSE;
}
static int alc_action(int timeout)
{
LOGDBG("alc action");
/* sampling timer add */
if (alc_timeout_id == 0 && !(status_flag & PWRSV_FLAG))
alc_timeout_id =
g_timeout_add_seconds_full(G_PRIORITY_DEFAULT,
SAMPLING_INTERVAL,
(GSourceFunc) alc_handler, NULL,
NULL);
if (_default_action != NULL)
return _default_action(timeout);
/* unreachable code */
return -1;
}
static int connect_sfsvc()
{
int sf_state = -1;
/* connect with sensor fw */
LOGDBG("connect with sensor fw");
sf_handle = sf_connect(LIGHT_SENSOR);
if (sf_handle < 0) {
LOGERR("sensor attach fail");
return -1;
}
sf_state = sf_start(sf_handle, 0);
if (sf_state < 0) {
LOGERR("sensor attach fail");
sf_disconnect(sf_handle);
sf_handle = -1;
return -2;
}
fault_count = 0;
return 0;
}
static int disconnect_sfsvc()
{
LOGDBG("disconnect with sensor fw");
if(sf_handle >= 0)
{
sf_stop(sf_handle);
sf_disconnect(sf_handle);
sf_handle = -1;
}
if (_default_action != NULL) {
states[S_NORMAL].action = _default_action;
_default_action = NULL;
}
if (alc_timeout_id != 0) {
g_source_remove(alc_timeout_id);
alc_timeout_id = 0;
}
return 0;
}
static int set_alc_function(keynode_t *key_nodes, void *data)
{
int onoff = 0;
if (key_nodes == NULL) {
LOGERR("wrong parameter, key_nodes is null");
return -1;
}
onoff = vconf_keynode_get_bool(key_nodes);
if (onoff == true) {
if(connect_sfsvc() < 0)
return -1;
/* change alc action func */
if (_default_action == NULL)
_default_action = states[S_NORMAL].action;
states[S_NORMAL].action = alc_action;
alc_timeout_id =
g_timeout_add_seconds_full(G_PRIORITY_DEFAULT,
SAMPLING_INTERVAL,
(GSourceFunc) alc_handler, NULL,
NULL);
} else {
disconnect_sfsvc();
}
return 0;
}
static gboolean check_sfsvc(gpointer data)
{
/* this function will return opposite value for re-callback in fail */
int vconf_auto;
int sf_state = 0;
LOGINFO("register sfsvc");
vconf_get_bool(VCONFKEY_SETAPPL_BRIGHTNESS_AUTOMATIC_BOOL, &vconf_auto);
if (vconf_auto == true) {
if(connect_sfsvc() < 0)
return TRUE;
/* change alc action func */
if (_default_action == NULL)
_default_action = states[S_NORMAL].action;
states[S_NORMAL].action = alc_action;
alc_timeout_id =
g_timeout_add_seconds_full(G_PRIORITY_DEFAULT,
SAMPLING_INTERVAL,
(GSourceFunc) alc_handler, NULL,
NULL);
if (alc_timeout_id != 0)
return FALSE;
disconnect_sfsvc();
return TRUE;
}
LOGINFO("change vconf value before registering sfsvc");
return FALSE;
}
static int prepare_lsensor(void *data)
{
int alc_conf;
int sf_state = 0;
plugin_intf->OEM_sys_get_backlight_max_brightness(DEFAULT_DISPLAY, &max_brightness);
vconf_get_bool(VCONFKEY_SETAPPL_BRIGHTNESS_AUTOMATIC_BOOL, &alc_conf);
if (alc_conf == true) {
g_timeout_add_seconds_full(G_PRIORITY_DEFAULT,
SAMPLING_INTERVAL,
(GSourceFunc) check_sfsvc, NULL,
NULL);
}
/* add auto_brt_setting change handler */
vconf_notify_key_changed(VCONFKEY_SETAPPL_BRIGHTNESS_AUTOMATIC_BOOL,
(void *)set_alc_function, NULL);
if (prev_init_extention != NULL)
return prev_init_extention(data);
return 0;
}
static void __attribute__ ((constructor)) pm_lsensor_init()
{
_default_action = NULL;
if (pm_init_extention != NULL)
prev_init_extention = pm_init_extention;
pm_init_extention = prepare_lsensor;
}
static void __attribute__ ((destructor)) pm_lsensor_fini()
{
}
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