2 * Network Configuration Module
4 * Copyright (c) 2000 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
22 #include <vconf-keys.h>
27 #include "wifi-state.h"
28 #include "wifi-background-scan.h"
30 #if defined TIZEN_WEARABLE
31 #define SCAN_PERIODIC_DELAY 15
32 #define SCAN_EXPONENTIAL_MIN 5
33 #define SCAN_EXPONENTIAL_MAX 320
35 #define SCAN_PERIODIC_DELAY 10
36 #define SCAN_EXPONENTIAL_MIN 4
37 #define SCAN_EXPONENTIAL_MAX 128
41 WIFI_BGSCAN_MODE_EXPONENTIAL = 0x00,
42 WIFI_BGSCAN_MODE_PERIODIC,
46 struct bgscan_timer_data {
52 static gboolean netconfig_wifi_scanning = FALSE;
53 static gboolean netconfig_bgscan_paused = FALSE;
55 static struct bgscan_timer_data *__netconfig_wifi_bgscan_get_bgscan_data(void)
57 static struct bgscan_timer_data timer_data =
58 {SCAN_EXPONENTIAL_MIN, WIFI_BGSCAN_MODE_EXPONENTIAL, 0};
63 static guint __netconfig_wifi_bgscan_mode(gboolean is_set_mode, guint mode)
65 static guint bgscan_mode = WIFI_BGSCAN_MODE_EXPONENTIAL;
67 if (is_set_mode != TRUE)
70 if (mode < WIFI_BGSCAN_MODE_MAX)
73 DBG("Wi-Fi background scan mode set %d", bgscan_mode);
78 static void __netconfig_wifi_bgscan_set_mode(guint mode)
80 __netconfig_wifi_bgscan_mode(TRUE, mode);
83 static guint __netconfig_wifi_bgscan_get_mode(void)
85 return __netconfig_wifi_bgscan_mode(FALSE, -1);
88 static gboolean __netconfig_wifi_bgscan_request_connman_scan(int retries)
90 gboolean reply = FALSE;
91 guint state = wifi_state_get_service_state();
93 if (state == NETCONFIG_WIFI_CONNECTED)
94 if (__netconfig_wifi_bgscan_get_mode() == WIFI_BGSCAN_MODE_EXPONENTIAL)
97 if (state == NETCONFIG_WIFI_ASSOCIATION ||state == NETCONFIG_WIFI_CONFIGURATION) {
98 /* During Wi-Fi connecting, Wi-Fi can be disappeared.
99 * After 1 sec, try scan even if connecting state */
104 netconfig_wifi_set_scanning(TRUE);
106 reply = netconfig_invoke_dbus_method_nonblock(CONNMAN_SERVICE,
107 CONNMAN_WIFI_TECHNOLOGY_PREFIX,
108 CONNMAN_TECHNOLOGY_INTERFACE, "Scan", NULL, NULL);
110 netconfig_wifi_set_scanning(FALSE);
115 static gboolean __netconfig_wifi_bgscan_next_scan(gpointer data);
117 static gboolean __netconfig_wifi_bgscan_immediate_scan(gpointer data)
119 static int retries = 0;
121 #if !defined TIZEN_WEARABLE
122 if (netconfig_wifi_is_bgscan_paused())
126 if (__netconfig_wifi_bgscan_request_connman_scan(retries) == TRUE) {
129 } else if (retries > 2) {
139 static void __netconfig_wifi_bgscan_start_timer(gboolean immediate_scan,
140 struct bgscan_timer_data *data)
145 netconfig_stop_timer(&(data->timer_id));
147 data->mode = __netconfig_wifi_bgscan_get_mode();
149 if (data->time < SCAN_EXPONENTIAL_MIN)
150 data->time = SCAN_EXPONENTIAL_MIN;
152 switch (data->mode) {
153 case WIFI_BGSCAN_MODE_EXPONENTIAL:
154 if (immediate_scan == TRUE) {
155 if ((data->time * 2) > SCAN_EXPONENTIAL_MAX)
156 data->time = SCAN_EXPONENTIAL_MAX;
158 data->time = data->time * 2;
162 case WIFI_BGSCAN_MODE_PERIODIC:
163 if ((data->time * 2) > SCAN_PERIODIC_DELAY)
164 data->time = SCAN_PERIODIC_DELAY;
166 data->time = data->time * 2;
170 DBG("Invalid Wi-Fi background scan mode[%d]", data->mode);
174 if (immediate_scan == TRUE)
175 g_timeout_add(500, __netconfig_wifi_bgscan_immediate_scan, NULL);
177 DBG("Scan immediately[%d], mode[%d], next[%d]",
178 immediate_scan, data->mode, data->time);
180 netconfig_start_timer_seconds(data->time,
181 __netconfig_wifi_bgscan_next_scan, data, &(data->timer_id));
184 static void __netconfig_wifi_bgscan_stop_timer(struct bgscan_timer_data *data)
189 netconfig_stop_timer(&(data->timer_id));
192 static gboolean __netconfig_wifi_bgscan_next_scan(gpointer data)
194 struct bgscan_timer_data *timer = (struct bgscan_timer_data *)data;
195 int pm_state = VCONFKEY_PM_STATE_NORMAL;
200 /* In case of LCD off, we don't need Wi-Fi scan */
201 vconf_get_int(VCONFKEY_PM_STATE, &pm_state);
202 if (pm_state >= VCONFKEY_PM_STATE_LCDOFF)
205 __netconfig_wifi_bgscan_start_timer(TRUE, timer);
210 void netconfig_wifi_set_bgscan_pause(gboolean pause)
212 DBG("[%s] Wi-Fi background scan", pause ? "Pause" : "Resume");
213 netconfig_bgscan_paused = pause;
216 gboolean netconfig_wifi_is_bgscan_paused(void)
218 DBG("Wi-Fi background scan is [%s]", netconfig_bgscan_paused ? "Paused" : "Runnable");
219 return netconfig_bgscan_paused;
222 void netconfig_wifi_bgscan_start(gboolean immediate_scan)
224 wifi_tech_state_e wifi_tech_state;
225 struct bgscan_timer_data *timer_data =
226 __netconfig_wifi_bgscan_get_bgscan_data();
228 if (timer_data == NULL)
231 wifi_tech_state = wifi_state_get_technology_state();
232 if (wifi_tech_state < NETCONFIG_WIFI_TECH_POWERED)
235 DBG("Wi-Fi background scan started or re-started(%d)", immediate_scan);
237 __netconfig_wifi_bgscan_start_timer(immediate_scan, timer_data);
240 void netconfig_wifi_bgscan_stop(void)
242 struct bgscan_timer_data *timer_data =
243 __netconfig_wifi_bgscan_get_bgscan_data();
245 if (timer_data == NULL)
248 DBG("Wi-Fi background scan stop");
250 timer_data->time = SCAN_EXPONENTIAL_MIN;
252 __netconfig_wifi_bgscan_stop_timer(timer_data);
255 gboolean netconfig_wifi_get_bgscan_state(void)
257 struct bgscan_timer_data *timer_data =
258 __netconfig_wifi_bgscan_get_bgscan_data();
260 return ((timer_data->timer_id > (guint)0) ? TRUE : FALSE);
263 gboolean netconfig_wifi_get_scanning(void)
265 return netconfig_wifi_scanning;
268 void netconfig_wifi_set_scanning(gboolean scanning)
270 if (netconfig_wifi_scanning != scanning)
271 netconfig_wifi_scanning = scanning;
274 gboolean handle_set_bgscan(Wifi *wifi, GDBusMethodInvocation *context, guint scan_mode)
277 int pm_state = VCONFKEY_PM_STATE_NORMAL;
279 old_mode = __netconfig_wifi_bgscan_get_mode();
280 if (old_mode == scan_mode){
281 wifi_complete_set_bgscan(wifi, context);
285 __netconfig_wifi_bgscan_set_mode(scan_mode);
287 netconfig_wifi_bgscan_stop();
289 /* In case of LCD off, we don't need Wi-Fi scan right now */
290 vconf_get_int(VCONFKEY_PM_STATE, &pm_state);
291 if (pm_state >= VCONFKEY_PM_STATE_LCDOFF)
292 netconfig_wifi_bgscan_start(FALSE);
294 netconfig_wifi_bgscan_start(TRUE);
296 wifi_complete_set_bgscan(wifi, context);
300 gboolean handle_resume_bgscan(Wifi *wifi, GDBusMethodInvocation *context)
302 netconfig_wifi_set_bgscan_pause(FALSE);
304 wifi_complete_resume_bgscan (wifi, context);
308 gboolean handle_pause_bgscan(Wifi *wifi, GDBusMethodInvocation *context)
310 netconfig_wifi_set_bgscan_pause(TRUE);
312 wifi_complete_pause_bgscan(wifi, context);