Sundance SMT6025 v.2.9 - Manual (Page 34)

Version 2.9 Page 34 of 45 SMT6025 User Manual
15.7.6 PciOpenSync
This function locks and associates the memory specified with the HSC
object. This function blocks until the DSP sends a
HSC_OpenPci
command to the host.
Prototype
void * HscDflt::PciOpenSync (UINT Bytes, void *pMem,
bool bLocked=false)
Parameters
nBytes The size of the memory pointed to by pMem.
pMem Points to the host memory that is to be associated
with this channel.
bLocked Specifies that the memory pointed to by pMem has
already been locked, and should not be unlocked
when the channel is closed later on.
15.7.7 PciCloseSync
This function disassociates the host memory previously associated by
calling PciOpenSync(). This function blocks until the DSP sends a
HSC_ClosePci command to the host. This is used to synchronise the
controlled shutdown of the host side program.
Prototype
void HscDflt::PciCloseSync (void)
Parameters
None
15.7.8 PciPutSync
Initiate a write to the PCI memory for this high-speed-channel.
Prototype
UINT HscDflt::PciPutSync (void)
Parameters
None
Return value
The number bytes actually asked for by the DSP.
15.7.9 PciPutDone
Complete a write to PCI memory operation for this HSC object.
Prototype
User Manual (QCF42); Version 2.9, 22/02/02; © Sundance Multiprocessor Technology Ltd. 2002