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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* 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 <string.h>
#include <errno.h>
#define LOG_TAG "WifiController"
#include <cutils/log.h>
#include "Supplicant.h"
#include "WifiController.h"
WifiController::WifiController(char *modpath, char *modname, char *modargs) :
Controller("WIFI") {
strncpy(mModulePath, modpath, sizeof(mModulePath));
strncpy(mModuleName, modname, sizeof(mModuleName));
strncpy(mModuleArgs, modargs, sizeof(mModuleArgs));
mSupplicant = new Supplicant();
mCurrentScanMode = 0;
}
int WifiController::start() {
return 0;
}
int WifiController::stop() {
errno = ENOSYS;
return -1;
}
int WifiController::enable() {
if (!isPoweredUp() && powerUp()) {
LOGE("Powerup failed (%s)", strerror(errno));
return -1;
}
if (mModuleName[0] != '\0' && !isKernelModuleLoaded(mModuleName)) {
if (loadKernelModule(mModulePath, mModuleArgs)) {
LOGE("Kernel module load failed (%s)", strerror(errno));
goto out_powerdown;
}
}
if (loadFirmware()) {
LOGE("Firmware load failed (%s)", strerror(errno));
goto out_powerdown;
}
if (!mSupplicant->isStarted() && mSupplicant->start()) {
LOGE("Supplicant start failed (%s)", strerror(errno));
goto out_unloadmodule;
}
return 0;
out_unloadmodule:
if (mModuleName[0] != '\0' && !isKernelModuleLoaded(mModuleName)) {
if (unloadKernelModule(mModuleName)) {
LOGE("Unable to unload module after failure!");
}
}
out_powerdown:
if (powerDown()) {
LOGE("Unable to powerdown after failure!");
}
return -1;
}
int WifiController::disable() {
LOGD("disable()");
if (mSupplicant->isStarted() && mSupplicant->stop()) {
LOGE("Supplicant stop failed (%s)", strerror(errno));
return -1;
}
if (mModuleName[0] != '\0' && isKernelModuleLoaded(mModuleName)) {
if (unloadKernelModule(mModuleName)) {
LOGE("Unable to unload module (%s)", strerror(errno));
return -1;
}
}
if (isPoweredUp() && powerDown()) {
LOGE("Powerdown failed (%s)", strerror(errno));
return -1;
}
return 0;
}
int WifiController::loadFirmware() {
return 0;
}
int WifiController::setScanMode(int mode) {
int rc = 0;
if (mCurrentScanMode == mode)
return 0;
if (!(mode & SCAN_ENABLE_MASK)) {
if (mCurrentScanMode & SCAN_REPEAT_MASK)
stopPeriodicScan();
} else if (mode & SCAN_REPEAT_MASK)
rc = startPeriodicScan();
else
rc = mSupplicant->triggerScan(mode & SCAN_ACTIVE_MASK);
return rc;
}
int WifiController::startPeriodicScan() {
errno = -ENOSYS;
return -1;
}
int WifiController::stopPeriodicScan() {
errno = -ENOSYS;
return -1;
}
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