Run-Time Interfaces/Integration Guide
I-A-11
Linking is especially useful for use
with ping-pong buffers and circular
buffers.
EDMA3_DRV_PARAM_FIELD_BCNTRELOA
D
PaRAM Set Field type: Reload
value of the numArrInFrame
(BCNT). Relevant only for A-sync
transfers.
EDMA3_DRV_PARAM_FIELD_SRCCIDX
PaRAM Set Field type: Index
between consecutive frames of a
Source Block (SRCCIDX).
EDMA3_DRV_PARAM_FIELD_DESTCIDX
PaRAM Set Field type: Index
between consecutive frames of a
Dest Block (DSTCIDX).
EDMA3_DRV_PARAM_FIELD_CCNT
PaRAM Set Field type: Number of
Frames in a block (CCNT).
Enum
EDMA3_DRV_IoctlCm
d
EDMA3_DRV_IOCTL_MIN_IOCTL
EDMA3 Driver IOCTL commands.
Min IOCTL.
EDMA3_DRV_IOCTL_SET_PARAM_CLEAR
_OPTION
PaRAM Sets will be cleared OR will
not be cleared during allocation,
depending upon this option.
For e.g., To clear the PaRAM Sets
during allocation,
cmdArg = (void *)1;
To NOT clear the PaRAM Sets
during allocation,
cmdArg = (void *)0;
For all other values, it will return
error.
By default, PaRAM Sets will be
cleared during allocation.
Note: Since this enum can change
the behavior how the resources
are
initialized
during
their
allocation, user is adviced to not
use this command while allocating
the resources. User should first
change the behavior of resources'
initialization and then should use
start allocating resources.
EDMA3_DRV_IOCTL_GET_PARAM_CLEAR
_OPTION
To check whether PaRAM Sets will
be cleared or not during allocation.
If the value read is '1', it means
that PaRAM Sets are getting
cleared during allocation.
If the value read is '0', it means
that PaRAM Sets are NOT getting
cleared during allocation.
For e.g.,
unsigned
short
isParamClearingDone;
cmdArg
=
¶mClearingRequired;
Summary of Contents for EDMA3
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Page 17: ...EDMA3 Driver Introduction I 1 5 ...
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Page 40: ...Run Time Interfaces Integration Guide A 12 EDMA3_DRV_IOCTL_MAX_IOCTL Max IOCTL ...
Page 75: ...Run Time Interfaces Integration Guide I A 47 Errors EDMA3_DRV_E_INVALID_PARAM ...
Page 107: ...Run Time Interfaces Integration Guide I A 79 ...