src/wifi-firmware.c

   1 /*
   2  * Network Configuration Module
   3  *
   4  * Copyright (c) 2000 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   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
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  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.
  17  *
  18  */
  19
  20 #include <errno.h>
  21 #include <vconf.h>
  22 #include <vconf-keys.h>
  23
  24 #include "log.h"
  25 #include "util.h"
  26 #include "netdbus.h"
  27 #include "emulator.h"
  28 #include "neterror.h"
  29 #include "netsupplicant.h"
  30 #include "wifi-firmware.h"
  31 #include "network-statistics.h"
  32
  33 #define WLAN_DRIVER_SCRIPT                      "/usr/bin/wlan.sh"
  34 #define WLAN_IFACE_NAME                         "wlan0"
  35
  36 #define WLAN_P2P_IFACE_NAME_TV                  "p2p0"
  37 #define WLAN_P2P_IFACE_NAME_COMMON                      "wlan0"
  38 #define WLAN_P2P_IFACE_NAME ((TIZEN_TV) ? (WLAN_P2P_IFACE_NAME_TV) : (WLAN_P2P_IFACE_NAME_COMMON))
  39
  40 static int __netconfig_sta_firmware_start(void)
  41 {
  42         int rv = 0;
  43         const char *path = WLAN_DRIVER_SCRIPT;
  44         char *const args[] = { "/usr/bin/wlan.sh", "start", NULL };
  45         char *const envs[] = { NULL };
  46
  47         if (TIZEN_WLAN_BOARD_SPRD) {
  48                 rv = netconfig_execute_file(path, args, envs);
  49                 if (rv < 0)
  50                         return -EIO;
  51         }
  52
  53         rv = netconfig_interface_up(WLAN_IFACE_NAME);
  54         if (rv != TRUE)
  55                 return -EIO;
  56
  57         DBG("Successfully loaded wireless device driver");
  58         return 0;
  59 }
  60
  61 static int __netconfig_sta_firmware_stop(void)
  62 {
  63         int rv = 0;
  64         const char *path = WLAN_DRIVER_SCRIPT;
  65         char *const args[] = { "/usr/bin/wlan.sh", "stop", NULL };
  66         char *const envs[] = { NULL };
  67
  68         /* Update statistics before driver remove */
  69         netconfig_wifi_statistics_update_powered_off();
  70
  71         rv = netconfig_interface_down(WLAN_IFACE_NAME);
  72         if (rv != TRUE)
  73                 return -EIO;
  74
  75         if (TIZEN_WLAN_BOARD_SPRD) {
  76                 rv = netconfig_execute_file(path, args, envs);
  77                 if (rv < 0)
  78                         return -EIO;
  79         }
  80
  81         DBG("Successfully removed wireless device driver");
  82         return 0;
  83 }
  84
  85 static int __netconfig_p2p_firmware_start(void)
  86 {
  87 #if defined TIZEN_P2P_ENABLE
  88         int rv = 0;
  89         const char *path = WLAN_DRIVER_SCRIPT;
  90         char *const args[] = { "/usr/bin/wlan.sh", "p2p", NULL };
  91         char *const envs[] = { NULL };
  92
  93         rv = netconfig_execute_file(path, args, envs);
  94         if (rv < 0)
  95                 return -EIO;
  96
  97 #if defined TIZEN_WLAN_USE_P2P_INTERFACE
  98         rv = netconfig_interface_up(WLAN_P2P_IFACE_NAME);
  99         if (rv != TRUE)
 100                 return -EIO;
 101 #endif
 102
 103         DBG("Successfully loaded p2p device driver");
 104         return 0;
 105 #else
 106         return -ENODEV;
 107 #endif
 108 }
 109
 110 static int __netconfig_p2p_firmware_stop(void)
 111 {
 112 #if defined TIZEN_P2P_ENABLE
 113         int rv = 0;
 114         const char *path = WLAN_DRIVER_SCRIPT;
 115         char *const args[] = { "/usr/bin/wlan.sh", "stop", NULL };
 116         char *const envs[] = { NULL };
 117
 118         rv = netconfig_interface_down(WLAN_IFACE_NAME);
 119         if (rv != TRUE)
 120                 return -EIO;
 121
 122         rv = netconfig_execute_file(path, args, envs);
 123         if (rv < 0)
 124                 return -EIO;
 125
 126         DBG("Successfully removed p2p device driver");
 127         return 0;
 128 #else
 129         return -ENODEV;
 130 #endif
 131 }
 132
 133 static int __netconfig_softap_firmware_start(void)
 134 {
 135 #if defined TIZEN_TETHERING_ENABLE
 136         int rv = 0;
 137         const char *path = WLAN_DRIVER_SCRIPT;
 138         char *const args[] = { "/usr/bin/wlan.sh", "softap", NULL };
 139         char *const envs[] = { NULL };
 140
 141         rv = netconfig_execute_file(path, args, envs);
 142         if (rv < 0)
 143                 return -EIO;
 144
 145         if (netconfig_interface_up(WLAN_IFACE_NAME) == FALSE)
 146                 return -EIO;
 147
 148         DBG("Successfully loaded softap device driver");
 149         return 0;
 150 #else
 151         return -ENODEV;
 152 #endif
 153 }
 154
 155 static int __netconfig_softap_firmware_stop(void)
 156 {
 157 #if defined TIZEN_TETHERING_ENABLE
 158         int rv = 0;
 159         const char *path = WLAN_DRIVER_SCRIPT;
 160         char *const args[] = { "/usr/bin/wlan.sh", "stop", NULL };
 161         char *const envs[] = { NULL };
 162
 163         rv = netconfig_interface_down(WLAN_IFACE_NAME);
 164         if (rv != TRUE)
 165                 return -EIO;
 166
 167         rv = netconfig_execute_file(path, args, envs);
 168         if (rv < 0)
 169                 return -EIO;
 170
 171         DBG("Successfully removed softap device driver");
 172         return 0;
 173 #else
 174         return -ENODEV;
 175 #endif
 176 }
 177
 178 static int __netconfig_wifi_firmware_start(enum netconfig_wifi_firmware type)
 179 {
 180         if (emulator_is_emulated() == TRUE)
 181                 return -EIO;
 182
 183         switch (type) {
 184         case NETCONFIG_WIFI_STA:
 185                 return __netconfig_sta_firmware_start();
 186         case NETCONFIG_WIFI_P2P:
 187                 return __netconfig_p2p_firmware_start();
 188         case NETCONFIG_WIFI_SOFTAP:
 189                 return __netconfig_softap_firmware_start();
 190         default:
 191                 break;
 192         }
 193
 194         return -ENXIO;
 195 }
 196
 197 static int __netconfig_wifi_firmware_stop(enum netconfig_wifi_firmware type)
 198 {
 199         if (emulator_is_emulated() == TRUE)
 200                 return -EIO;
 201
 202         switch (type) {
 203         case NETCONFIG_WIFI_STA:
 204                 return __netconfig_sta_firmware_stop();
 205         case NETCONFIG_WIFI_P2P:
 206                 return __netconfig_p2p_firmware_stop();
 207         case NETCONFIG_WIFI_SOFTAP:
 208                 return __netconfig_softap_firmware_stop();
 209         default:
 210                 break;
 211         }
 212
 213         return -ENXIO;
 214 }
 215
 216 int netconfig_wifi_firmware(enum netconfig_wifi_firmware type, gboolean enable)
 217 {
 218         int err;
 219         static enum netconfig_wifi_firmware current_driver = NETCONFIG_WIFI_OFF;
 220         enum netconfig_wifi_firmware alias = type;
 221
 222 #if defined WLAN_CONCURRENT_MODE
 223         int flight_mode = 0;
 224
 225         if (type == NETCONFIG_WIFI_P2P)
 226                 alias = NETCONFIG_WIFI_STA;
 227 #endif
 228
 229         DBG("Wi-Fi current firmware %d (type: %d %s)", current_driver, type,
 230                                                         enable == TRUE ? "enable" : "disable");
 231
 232         if (enable == FALSE) {
 233                 if (current_driver == NETCONFIG_WIFI_OFF) {
 234                         return -EALREADY;
 235                 } else if (current_driver == alias) {
 236
 237 #if defined WLAN_CONCURRENT_MODE
 238                         netconfig_vconf_get_bool(VCONFKEY_TELEPHONY_FLIGHT_MODE, &flight_mode);
 239                         if (flight_mode == 0 && type == NETCONFIG_WIFI_STA &&
 240                                         netconfig_is_wifi_direct_on() == TRUE) {
 241                                 netconfig_interface_down(WIFI_IFNAME);
 242
 243                                 return -EALREADY;
 244                         }
 245
 246                         if (type == NETCONFIG_WIFI_P2P && wifi_state_get_technology_state() > NETCONFIG_WIFI_TECH_OFF) {
 247                                 netconfig_interface_down(WLAN_P2P_IFACE_NAME);
 248
 249                                 return -EALREADY;
 250                         }
 251 #endif
 252                         err = __netconfig_wifi_firmware_stop(type);
 253                         if (err < 0 && err != -EALREADY)
 254                                 return err;
 255
 256                         current_driver = NETCONFIG_WIFI_OFF;
 257
 258                         return err;
 259                 }
 260
 261                 return -EIO;
 262         }
 263
 264         if (current_driver > NETCONFIG_WIFI_OFF) {
 265                 if (current_driver == alias) {
 266
 267 #if defined WLAN_CONCURRENT_MODE
 268                         if (type == NETCONFIG_WIFI_STA)
 269                                 netconfig_interface_up(WIFI_IFNAME);
 270 #if defined TIZEN_P2P_ENABLE
 271                         else if (type == NETCONFIG_WIFI_P2P)
 272                                 netconfig_interface_up(WLAN_P2P_IFACE_NAME);
 273 #endif
 274 #endif
 275                         return -EALREADY;
 276                 }
 277
 278                 return -EIO;
 279         }
 280
 281         err = __netconfig_wifi_firmware_start(type);
 282         if (err < 0)
 283                 DBG("Failed to execute script file");
 284         else
 285                 current_driver = alias;
 286
 287         return err;
 288 }
 289
 290 gboolean handle_start(WifiFirmware *firmware, GDBusMethodInvocation *context, const gchar *device)
 291 {
 292         int err;
 293
 294         g_return_val_if_fail(firmware != NULL, FALSE);
 295
 296         DBG("Wi-Fi firmware start %s", device != NULL ? device : "null");
 297
 298         if (g_strcmp0("p2p", device) == 0)
 299                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_P2P, TRUE);
 300         else if (g_strcmp0("softap", device) == 0)
 301                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_SOFTAP, TRUE);
 302         else
 303                 err = -EINVAL;
 304
 305         if (err < 0) {
 306                 if (err == -EALREADY)
 307                         netconfig_error_already_exists(context);
 308                 else if (g_strcmp0("softap", device) == 0 && err == -EIO && netconfig_is_wifi_direct_on() == FALSE) {
 309                         if (netconfig_wifi_firmware(NETCONFIG_WIFI_P2P, FALSE) == 0 && netconfig_wifi_firmware(NETCONFIG_WIFI_SOFTAP, TRUE) == 0) {
 310                                 wifi_firmware_complete_start(firmware, context);
 311                                 return TRUE;
 312                         } else
 313                                 netconfig_error_wifi_driver_failed(context);
 314                 } else
 315                         netconfig_error_wifi_driver_failed(context);
 316
 317                 return FALSE;
 318         }
 319
 320         wifi_firmware_complete_start(firmware, context);
 321         return TRUE;
 322 }
 323
 324 gboolean handle_stop(WifiFirmware *firmware, GDBusMethodInvocation *context, const gchar *device)
 325 {
 326         int err;
 327
 328         g_return_val_if_fail(firmware != NULL, FALSE);
 329
 330         DBG("Wi-Fi firmware stop %s", device != NULL ? device : "null");
 331
 332         if (g_strcmp0("p2p", device) == 0)
 333                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_P2P, FALSE);
 334         else if (g_strcmp0("softap", device) == 0)
 335                 err = netconfig_wifi_firmware(NETCONFIG_WIFI_SOFTAP, FALSE);
 336         else
 337                 err = -EINVAL;
 338
 339         if (err < 0) {
 340                 if (err == -EALREADY)
 341                         netconfig_error_already_exists(context);
 342                 else
 343                         netconfig_error_wifi_driver_failed(context);
 344
 345                 return FALSE;
 346         }
 347
 348         wifi_firmware_complete_stop(firmware, context);
 349         return TRUE;
 350 }