/**
* Internal function which just closes connection and cleans up structures.
*/
GSM_Error GSM_CloseConnection(GSM_StateMachine *s)
{
GSM_Error error;
smprintf(s, "[Closing]\n");
/* Terminate protocol */
error = s->Protocol.Functions->Terminate(s);
if (error != ERR_NONE) return error;
/* Close the device */
error = s->Device.Functions->CloseDevice(s);
if (error != ERR_NONE) return error;
/* Release lock if there was any */
if (s->LockFile != NULL) {
unlock_device(s, &(s->LockFile));
}
/* Null all structures in case we will be asked for new initialisation */
s->Phone.Data.ModelInfo = NULL;
s->Phone.Data.Manufacturer[0] = 0;
s->Phone.Data.Model[0] = 0;
s->Phone.Data.Version[0] = 0;
s->Phone.Data.VerDate[0] = 0;
s->Phone.Data.VerNum = 0;
return ERR_NONE;
}
/**
* Opens connection to device and initiates protocol layer.
*/
GSM_Error GSM_OpenConnection(GSM_StateMachine *s)
{
GSM_Error error;
if (s->CurrentConfig->LockDevice) {
error = lock_device(s, s->CurrentConfig->Device, &(s->LockFile));
if (error != ERR_NONE) return error;
}
/* Irda devices can set now model to some specific and
* we don't have to make auto detection later */
error=s->Device.Functions->OpenDevice(s);
if (error!=ERR_NONE) {
if (s->LockFile != NULL)
unlock_device(s, &(s->LockFile));
return error;
}
s->opened = TRUE;
error=s->Protocol.Functions->Initialise(s);
if (error!=ERR_NONE) return error;
return ERR_NONE;
}
/* if a device is dead, use this function to unregister from
device list. */
int unregister_device(int i)
{
IDEV *p;
if (dev_list.dev[i].active == 0)
return -1;
/* 1. clear flags */
if (clear_in_use_flag_for_device(i))
return -2;
p = dev_list.dev[i].idev;
/* I don't know if it is ok or not. */
/* TOFIX: how to free a structure with mutex ? */
lock_device(p);
idev_lock(p);
idev_unlock(p);
unlock_device(p);
/* 2. shut down daemon thread */
if (pthread_cancel(dev_list.dev[i].idev->thread_id))
dm_log(NULL, "\n[VITAL ERROR] thread cancel failed. going on.\n");
/* 3. remove device structure */
dev_list.dev_total--;
dev_list.dev[i].active = 0;
dev_list.dev[i].during_test = 0;
idev_release(p);
dev_list.dev[i].idev = NULL;
dm_log(NULL, "REMOVED device index %d.", i);
/* done */
return 0;
}