/*
* ======== Notify_eventAvailable ========
*/
Bool Notify_eventAvailable(UInt16 procId, UInt16 lineId, UInt32 eventId)
{
UInt32 strippedEventId = (eventId & 0xFFFF);
UInt16 clusterId = ti_sdo_utils_MultiProc_getClusterId(procId);
Bool available;
ti_sdo_ipc_Notify_Object *obj;
Assert_isTrue(procId < ti_sdo_utils_MultiProc_numProcessors && lineId <
ti_sdo_ipc_Notify_numLines, ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(strippedEventId < ti_sdo_ipc_Notify_numEvents,
ti_sdo_ipc_Notify_A_invArgument);
obj = (ti_sdo_ipc_Notify_Object *)
Notify_module->notifyHandles[clusterId][lineId];
if (obj == NULL) {
/* Driver not registered */
return (FALSE);
}
if (!ISRESERVED(eventId)) {
/* Event is reserved and the caller isn't using Notify_SYSTEMKEY */
return (FALSE);
}
available = (obj->callbacks[strippedEventId].fnNotifyCbck == NULL);
return (available);
}
/*
* ======== Notify_enableEvent ========
*/
Void Notify_enableEvent(UInt16 procId, UInt16 lineId, UInt32 eventId)
{
UInt32 strippedEventId = (eventId & 0xFFFF);
UInt16 clusterId = ti_sdo_utils_MultiProc_getClusterId(procId);
ti_sdo_ipc_Notify_Object *obj;
UInt sysKey;
Assert_isTrue(procId < ti_sdo_utils_MultiProc_numProcessors && lineId <
ti_sdo_ipc_Notify_numLines, ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(strippedEventId < ti_sdo_ipc_Notify_numEvents,
ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(ISRESERVED(eventId), ti_sdo_ipc_Notify_A_reservedEvent);
obj = (ti_sdo_ipc_Notify_Object *)
Notify_module->notifyHandles[clusterId][lineId];
Assert_isTrue(obj != NULL, ti_sdo_ipc_Notify_A_notRegistered);
if (procId != MultiProc_self()) {
/* enable the remote event */
INotifyDriver_enableEvent(obj->driverHandle, strippedEventId);
}
else {
/* enable the local event */
sysKey = Hwi_disable();
SET_BIT(Notify_module->localEnableMask, strippedEventId);
Hwi_restore(sysKey);
}
}
static void _export_token (Token t)
{
static Token lasttok;
static bool concatenation = false;
if (t == FINISH_CMD) {
if (lasttok) output_itoken (GLOBAL, lasttok);
} else if (t == CONCAT_CMD) {
if (concatenation) return;
if (!lasttok) return;
concatenation = true;
} else if (!ISSYMBOL (t) && !ISRESERVED (t) && !ISVALUE (t)) {
if (lasttok) output_itoken (GLOBAL, lasttok);
output_itoken (GLOBAL, t);
lasttok = 0;
concatenation = false;
} else if (!concatenation) {
if (lasttok) output_itoken (GLOBAL, lasttok);
lasttok = t;
} else {
char *tmp = (char*) alloca (strlen (expand (lasttok)) + strlen (expand (t)) + 1);
strcat (strcpy (tmp, expand (lasttok)), expand (t));
lasttok = new_symbol (strdup (tmp));
}
}
/*
* ======== Notify_unregisterEventSingle ========
*/
Int Notify_unregisterEventSingle(UInt16 procId, UInt16 lineId, UInt32 eventId)
{
UInt32 strippedEventId = (eventId & 0xFFFF);
UInt16 clusterId = ti_sdo_utils_MultiProc_getClusterId(procId);
Int status;
ti_sdo_ipc_Notify_Object *obj;
UInt modKey;
Assert_isTrue(procId < ti_sdo_utils_MultiProc_numProcessors &&
lineId < ti_sdo_ipc_Notify_numLines, ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(strippedEventId < ti_sdo_ipc_Notify_numEvents,
ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(ISRESERVED(eventId), ti_sdo_ipc_Notify_A_reservedEvent);
modKey = Gate_enterModule();
obj = (ti_sdo_ipc_Notify_Object *)
Notify_module->notifyHandles[clusterId][lineId];
Assert_isTrue(obj != NULL, ti_sdo_ipc_Notify_A_notRegistered);
if (obj->callbacks[strippedEventId].fnNotifyCbck) {
if (procId != MultiProc_self()) {
/*
* First, Tell the remote notify driver that the event is now
* unregistered
*/
INotifyDriver_unregisterEvent(obj->driverHandle,
strippedEventId);
}
/*
* No need to protect these modifications with the system gate because
* we shouldn't get preempted by Notify_exec after INotifyDriver_
* unregisterEvent.
*/
obj->callbacks[strippedEventId].fnNotifyCbck = NULL;
obj->callbacks[strippedEventId].cbckArg = NULL;
status = Notify_S_SUCCESS;
}
else {
/* No callback is registered. Fail. */
status = Notify_E_FAIL;
}
Gate_leaveModule(modKey);
return (status);
}
/*
* ======== Notify_registerEventSingle ========
*/
Int Notify_registerEventSingle(UInt16 procId,
UInt16 lineId,
UInt32 eventId,
Notify_FnNotifyCbck fnNotifyCbck,
UArg cbckArg)
{
UInt32 strippedEventId = (eventId & 0xFFFF);
UInt16 clusterId = ti_sdo_utils_MultiProc_getClusterId(procId);
UInt modKey;
Int status;
ti_sdo_ipc_Notify_Object *obj;
Assert_isTrue(procId < ti_sdo_utils_MultiProc_numProcessors &&
lineId < ti_sdo_ipc_Notify_numLines, ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(strippedEventId < ti_sdo_ipc_Notify_numEvents,
ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(ISRESERVED(eventId), ti_sdo_ipc_Notify_A_reservedEvent);
modKey = Gate_enterModule();
obj = (ti_sdo_ipc_Notify_Object *)
Notify_module->notifyHandles[clusterId][lineId];
Assert_isTrue(obj != NULL, ti_sdo_ipc_Notify_A_notRegistered);
if (obj->callbacks[strippedEventId].fnNotifyCbck) {
/* A callback is already registered. Fail. */
status = Notify_E_ALREADYEXISTS;
}
else {
/*
* No callback is registered. Register it. There is no need to protect
* these modifications because the event isn't registered yet.
*/
obj->callbacks[strippedEventId].fnNotifyCbck = (Fxn)fnNotifyCbck;
obj->callbacks[strippedEventId].cbckArg = cbckArg;
if (procId != MultiProc_self()) {
/* Tell the remote notify driver that the event is now registered */
INotifyDriver_registerEvent(obj->driverHandle, strippedEventId);
}
status = Notify_S_SUCCESS;
}
Gate_leaveModule(modKey);
return (status);
}
/*
* ======== Notify_unregisterEvent ========
*/
Int Notify_unregisterEvent(UInt16 procId,
UInt16 lineId,
UInt32 eventId,
Notify_FnNotifyCbck fnNotifyCbck,
UArg cbckArg)
{
UInt32 strippedEventId = (eventId & 0xFFFF);
UInt16 clusterId = ti_sdo_utils_MultiProc_getClusterId(procId);
Int status;
UInt sysKey, modKey;
ti_sdo_ipc_Notify_Object *obj;
List_Handle eventList;
ti_sdo_ipc_Notify_EventListener *listener;
UInt count = 0;
Assert_isTrue(procId < ti_sdo_utils_MultiProc_numProcessors && lineId <
ti_sdo_ipc_Notify_numLines, ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(strippedEventId < ti_sdo_ipc_Notify_numEvents,
ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(ISRESERVED(eventId), ti_sdo_ipc_Notify_A_reservedEvent);
modKey = Gate_enterModule();
obj = (ti_sdo_ipc_Notify_Object *)
Notify_module->notifyHandles[clusterId][lineId];
Assert_isTrue(obj != NULL, ti_sdo_ipc_Notify_A_notRegistered);
eventList = List_Object_get(obj->eventList, strippedEventId);
if (List_empty(eventList)) {
return (Notify_E_NOTFOUND);
}
/* Get the first listener on the list */
listener = (ti_sdo_ipc_Notify_EventListener *)List_next(eventList, NULL);
while (listener != NULL) {
count++;
if (listener->callback.fnNotifyCbck == (Fxn)fnNotifyCbck &&
listener->callback.cbckArg == cbckArg ) {
break; /* found a match! */
}
listener = (ti_sdo_ipc_Notify_EventListener *)
List_next(eventList, (List_Elem *)listener);
}
if (listener == NULL) {
/* Event listener not found */
status = Notify_E_NOTFOUND;
}
else {
if (count == 1 && List_next(eventList, (List_Elem *)listener) == NULL) {
/*
* If only one element counted so far and the List_next returns
* NULL, the list will be empty after unregistering. Therefore,
* unregister the callback function.
*/
status = Notify_unregisterEventSingle(procId, lineId, eventId);
/* unregisterEvent should always suceed */
Assert_isTrue(status == Notify_S_SUCCESS,
ti_sdo_ipc_Notify_A_internal);
/* No need to protect the list removal: the event's unregistered */
List_remove(eventList, (List_Elem *)listener);
}
else {
/*
* Need to atomically remove from the list using the system gate
* because Notify_exec might preempt List_remove (the event is
* still registered)
*/
sysKey = Hwi_disable();
List_remove(eventList, (List_Elem *)listener);
Hwi_restore(sysKey);
}
/* Free the memory alloc'ed for the event listener */
Memory_free(ti_sdo_ipc_Notify_Object_heap(), listener,
sizeof(ti_sdo_ipc_Notify_EventListener));
status = Notify_S_SUCCESS;
}
Gate_leaveModule(modKey);
return (status);
}
/*
* ======== Notify_sendEvent ========
*/
Int Notify_sendEvent(UInt16 procId,
UInt16 lineId,
UInt32 eventId,
UInt32 payload,
Bool waitClear)
{
UInt32 strippedEventId = (eventId & 0xFFFF);
UInt16 clusterId = ti_sdo_utils_MultiProc_getClusterId(procId);
Int status;
ti_sdo_ipc_Notify_Object *obj;
UInt sysKey;
Assert_isTrue(procId < ti_sdo_utils_MultiProc_numProcessors &&
lineId < ti_sdo_ipc_Notify_numLines, ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(strippedEventId < ti_sdo_ipc_Notify_numEvents,
ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(ISRESERVED(eventId), ti_sdo_ipc_Notify_A_reservedEvent);
obj = (ti_sdo_ipc_Notify_Object *)
Notify_module->notifyHandles[clusterId][lineId];
Assert_isTrue(obj != NULL, ti_sdo_ipc_Notify_A_notRegistered);
if (procId != MultiProc_self()) {
/* Send a remote event */
status = INotifyDriver_sendEvent(obj->driverHandle,
strippedEventId,
payload, waitClear);
}
else {
/*
* The check agaist non-NULL fnNotifyCbCk must be atomic with
* Notify_exec so Notify_exec doesn't encounter a null callback.
*/
sysKey = Hwi_disable();
/*
* If nesting == 0 (the driver is enabled) and the event is enabled,
* send the event
*/
if (obj->callbacks[strippedEventId].fnNotifyCbck == NULL) {
/* No callbacks are registered locally for the event. */
status = Notify_E_EVTNOTREGISTERED;
}
else if (obj->nesting != 0) {
/* Driver is disabled */
status = Notify_E_FAIL;
}
else if (!TEST_BIT (Notify_module->localEnableMask, strippedEventId)) {
/* Event is disabled */
status = Notify_E_EVTDISABLED;
}
else {
/* Execute the callback function registered to the event */
ti_sdo_ipc_Notify_exec(obj, strippedEventId, payload);
status = Notify_S_SUCCESS;
}
Hwi_restore(sysKey);
}
return (status);
}
/*
* ======== Notify_registerEvent ========
*/
Int Notify_registerEvent(UInt16 procId,
UInt16 lineId,
UInt32 eventId,
Notify_FnNotifyCbck fnNotifyCbck,
UArg cbckArg)
{
UInt32 strippedEventId = (eventId & 0xFFFF);
UInt16 clusterId = ti_sdo_utils_MultiProc_getClusterId(procId);
Int status;
ti_sdo_ipc_Notify_Object *obj;
UInt modKey;
List_Handle eventList;
ti_sdo_ipc_Notify_EventListener *listener;
Bool listWasEmpty;
Error_Block eb;
Assert_isTrue(procId < ti_sdo_utils_MultiProc_numProcessors &&
lineId < ti_sdo_ipc_Notify_numLines, ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(strippedEventId < ti_sdo_ipc_Notify_numEvents,
ti_sdo_ipc_Notify_A_invArgument);
Assert_isTrue(ISRESERVED(eventId), ti_sdo_ipc_Notify_A_reservedEvent);
Error_init(&eb);
modKey = Gate_enterModule();
obj = (ti_sdo_ipc_Notify_Object *)
Notify_module->notifyHandles[clusterId][lineId];
Assert_isTrue(obj != NULL, ti_sdo_ipc_Notify_A_notRegistered);
/* Allocate a new EventListener */
listener = Memory_alloc(ti_sdo_ipc_Notify_Object_heap(),
sizeof(ti_sdo_ipc_Notify_EventListener), 0, &eb);
if (listener == NULL) {
/* Listener memory allocation failed. Leave module gate & return */
Gate_leaveModule(modKey);
return (Notify_E_MEMORY);
}
listener->callback.fnNotifyCbck = (Fxn)fnNotifyCbck;
listener->callback.cbckArg = cbckArg;
eventList = List_Object_get(obj->eventList, strippedEventId);
/*
* Store whether the list was empty so we know whether to register the
* callback
*/
listWasEmpty = List_empty(eventList);
/*
* Need to atomically add to the list using the system gate because
* Notify_exec might preempt List_remove. List_put is atomic.
*/
List_put(eventList, (List_Elem *)listener);
if (listWasEmpty) {
/*
* Registering this event for the first time. Need to register the
* callback function.
*/
status = Notify_registerEventSingle(procId, lineId, eventId,
Notify_execMany, (UArg)obj);
/* Notify_registerEventSingle should always succeed */
Assert_isTrue(status == Notify_S_SUCCESS,
ti_sdo_ipc_Notify_A_internal);
}
status = Notify_S_SUCCESS;
Gate_leaveModule(modKey);
return (status);
}
