/** ============================================================================
* @func SWIRGB2YCBCR_DSP_delete
*
* @desc Delete phase of SWIRGB2YCBCR_DSP application. Deallocates all the
* resources that were allocated during create phase.
*
* @modif None.
* ============================================================================
*/
Int SWIRGB2YCBCR_DSP_delete (SWIRGB2YCBCR_DSP_TransferInfo * info)
{
Int status = SYS_OK ;
Int iomStatus ;
if (info != NULL) {
/* Delete SWI */
if (info->swi != NULL) {
SWI_delete (info->swi) ;
}
/* Delete GIO input channel */
if (info->gioInputChan != NULL) {
iomStatus = GIO_delete (info->gioInputChan) ;
if (iomStatus != IOM_COMPLETED) {
status = SYS_EBADIO ;
SET_FAILURE_REASON (status) ;
}
}
/* Delete GIO output channel */
if (info->gioOutputChan != NULL) {
iomStatus = GIO_delete (info->gioOutputChan) ;
if (iomStatus != IOM_COMPLETED) {
status = SYS_EBADIO ;
SET_FAILURE_REASON (status) ;
}
}
/* Deallocate inputBuffer */
if (info->inputBuffer != NULL) {
POOL_free (SAMPLE_POOL_ID, info->inputBuffer, info->bufferSize) ;
}
/* Deallocate outputBuffer */
if (info->outputBuffer != NULL) {
POOL_free (SAMPLE_POOL_ID, info->outputBuffer, info->bufferSize) ;
}
/* Deallocate info structure */
if (!MEM_free (DSPLINK_SEGID, info, sizeof (SWIRGB2YCBCR_DSP_TransferInfo))) {
status = SYS_EALLOC ;
SET_FAILURE_REASON (status) ;
}
}
else {
status = SYS_EALLOC ;
}
return status ;
}
/*
* ======== GIO_create ========
*/
GIO_Handle GIO_create(String name, Int mode, Int *status, Ptr optArgs, \
GIO_Attrs *attrs)
{
GIO_Handle gioChan;
IOM_Packet *packet;
DEV_Device *entry;
Int i;
Int tmpStat;
if (attrs == NULL) {
attrs = &GIO_ATTRS;
}
/*
* status param is used to pass additional device status back to caller.
*/
if (status == NULL) {
status = &tmpStat; /* no longer need to check if status valid ptr */
}
*status = IOM_COMPLETED;
/*
* Find device structure in device table for device with name 'name'.
* DEV_match() returns the remaining name string for use by the
* mini-driver's create() function.
*/
name = DEV_match(name, &entry);
if (entry == NULL) {
SYS_error(name, SYS_ENODEV); /* sys error - no device found */
return (NULL);
}
if (entry->type != DEV_IOMTYPE) {
SYS_error("IOM", SYS_EINVAL); /* sys error - invalid device parameter */
return (NULL);
}
/* allocate and 0-fill IOM object */
gioChan = MEM_calloc(0, sizeof(GIO_Obj), 0);
if (gioChan == NULL) {
*status = IOM_EALLOC;
return (NULL);
}
/* initialize queue structures */
QUE_new(&gioChan->freeList);
/*
* Allocate packets for asynch I/O.
*/
for (i=0; i < attrs->nPackets; i++) {
packet = _GIO_mkPacket();
if (packet == NULL) {
*status = IOM_EALLOC;
GIO_delete(gioChan);
return (NULL);
}
QUE_put(&gioChan->freeList, packet);
}
/*
* Create semaphore or other synchronization object. 'gioChan->syncObj' is
* used to wait for I/O to complete when GIO_submit() is called with
* NULL *appCallback parameter.
*/
gioChan->syncObj = GIO->SEMCREATE(0, NULL);
if (gioChan->syncObj == NULL) {
*status = IOM_EALLOC;
GIO_delete(gioChan);
return (NULL);
}
gioChan->fxns = (IOM_Fxns *)entry->fxns;
gioChan->mode = mode;
gioChan->timeout = attrs->timeout;
*status = gioChan->fxns->mdCreateChan(&gioChan->mdChan, entry->devp,
name, mode, optArgs, _GIO_iomCallback, gioChan);
if (gioChan->mdChan == NULL) {
GIO_delete(gioChan);
return (NULL);
}
return (gioChan);
}
