/*******************************************************************************
Task create/management/kill related functions.
*******************************************************************************/
NDIS_STATUS ral_task_kill(
IN KTHREAD *pTask)
{
int ret = STATUS_FAILURE;
RTBT_OS_TASK *pOSThread = (RTBT_OS_TASK *)pTask->pOSThread;
#ifdef KTHREAD_SUPPORT
if (pOSThread->kthread_task) {
kthread_stop(pOSThread->kthread_task);
ret = STATUS_SUCCESS;
}
#else
if(IS_VALID_PID(pOSThread->taskPID)) {
printk(KERN_WARNING "Terminate the task(%s) with pid(%d)!\n",
pOSThread->taskName, GET_PID_NUMBER(pOSThread->taskPID));
mb();
pOSThread->task_killed = 1;
mb();
ret = KILL_THREAD_PID(pOSThread->taskPID, SIGTERM, 1);
if (ret){
printk(KERN_WARNING "kill task(%s) with pid(%d) failed(retVal=%d)!\n",
pOSThread->taskName, GET_PID_NUMBER(pOSThread->taskPID), ret);
} else {
wait_for_completion(&pOSThread->taskComplete);
pOSThread->taskPID = THREAD_PID_INIT_VALUE;
pOSThread->task_killed = 0;
ret = STATUS_SUCCESS;
}
}
#endif
return ret;
}
static int usb_rtusb_close_device(
IN PRTMP_ADAPTER pAd)
{
int i = 0;
int ret;
DECLARE_WAIT_QUEUE_HEAD (unlink_wakeup);
DECLARE_WAITQUEUE (wait, current);
DBGPRINT(RT_DEBUG_TRACE, "-->usb_rtusb_close_device \n");
// ensure there are no more active urbs.
add_wait_queue (&unlink_wakeup, &wait);
pAd->wait = &unlink_wakeup;
// maybe wait for deletions to finish.
while ((i < 25) && atomic_read(&pAd->PendingRx) > 0)
{
#if LINUX_VERSION_CODE >KERNEL_VERSION(2,6,9)
msleep(UNLINK_TIMEOUT_MS);
#endif
i++;
}
pAd->wait = NULL;
remove_wait_queue (&unlink_wakeup, &wait);
if (pAd->MLMEThr_pid >= 0)
{
mlme_kill = 1;
RTUSBMlmeUp(pAd);
wmb(); // need to check
ret = KILL_THREAD_PID (pAd->MLMEThr_pid, SIGTERM, 1);
if (ret)
{
printk (KERN_WARNING "%s: unable to Mlme thread \n", pAd->net_dev->name);
}
wait_for_completion (&pAd->MlmeThreadNotify);
// reset mlme thread
pAd->MLMEThr_pid = THREAD_PID_INIT_VALUE;
}
if (pAd->RTUSBCmdThr_pid>= 0)
{
RTUSBCmd_kill = 1;
RTUSBCMDUp(pAd);
wmb(); // need to check
ret = KILL_THREAD_PID (pAd->RTUSBCmdThr_pid, SIGTERM, 1);
if (ret)
{
printk (KERN_WARNING "%s: unable to RTUSBCmd thread \n", pAd->net_dev->name);
}
wait_for_completion (&pAd->CmdThreadNotify);
// reset cmd thread
pAd->RTUSBCmdThr_pid= THREAD_PID_INIT_VALUE;
}
RTUSBHalt(pAd, TRUE);
RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_REMOVE_IN_PROGRESS);
tasklet_kill(&pAd->rx_bh);
DBGPRINT(RT_DEBUG_TRACE,"<--usb_rtusb_close_device \n");
return 0;
}