dmadrv.c File Reference

Detailed Description

DMADRV API implementation.

Version

5.1.2

License

(C) Copyright 2014 Silicon Labs, http://www.silabs.com

This file is licensed under the Silabs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement.

Definition in file dmadrv.c.

#include <stdbool.h>
#include <stddef.h>
#include "em_device.h"
#include "em_cmu.h"
#include "em_core.h"
#include "dmadrv.h"

Go to the source code of this file.

Functions
Ecode_t	DMADRV_AllocateChannel (unsigned int *channelId, void *capabilities)
	Allocate (reserve) a DMA channel. More...
Ecode_t	DMADRV_DeInit (void)
	Deinitialize DMADRV. More...
Ecode_t	DMADRV_FreeChannel (unsigned int channelId)
	Free an allocate (reserved) DMA channel. More...
Ecode_t	DMADRV_Init (void)
	Initialize DMADRV. More...
Ecode_t	DMADRV_LdmaStartTransfer (int channelId, LDMA_TransferCfg_t *transfer, LDMA_Descriptor_t *descriptor, DMADRV_Callback_t callback, void *cbUserParam)
	Start a LDMA transfer. More...
Ecode_t	DMADRV_MemoryPeripheral (unsigned int channelId, DMADRV_PeripheralSignal_t peripheralSignal, void *dst, void *src, bool srcInc, int len, DMADRV_DataSize_t size, DMADRV_Callback_t callback, void *cbUserParam)
	Start a memory to peripheral DMA transfer. More...
Ecode_t	DMADRV_MemoryPeripheralPingPong (unsigned int channelId, DMADRV_PeripheralSignal_t peripheralSignal, void *dst, void *src0, void *src1, bool srcInc, int len, DMADRV_DataSize_t size, DMADRV_Callback_t callback, void *cbUserParam)
	Start a memory to peripheral ping-pong DMA transfer. More...
Ecode_t	DMADRV_PauseTransfer (unsigned int channelId)
	Pause an ongoing DMA transfer. More...
Ecode_t	DMADRV_PeripheralMemory (unsigned int channelId, DMADRV_PeripheralSignal_t peripheralSignal, void *dst, void *src, bool dstInc, int len, DMADRV_DataSize_t size, DMADRV_Callback_t callback, void *cbUserParam)
	Start a peripheral to memory DMA transfer. More...
Ecode_t	DMADRV_PeripheralMemoryPingPong (unsigned int channelId, DMADRV_PeripheralSignal_t peripheralSignal, void *dst0, void *dst1, void *src, bool dstInc, int len, DMADRV_DataSize_t size, DMADRV_Callback_t callback, void *cbUserParam)
	Start a peripheral to memory ping-pong DMA transfer. More...
Ecode_t	DMADRV_ResumeTransfer (unsigned int channelId)
	Resume an ongoing DMA transfer. More...
Ecode_t	DMADRV_StopTransfer (unsigned int channelId)
	Stop an ongoing DMA transfer. More...
Ecode_t	DMADRV_TransferActive (unsigned int channelId, bool *active)
	Check if a transfer is running. More...
Ecode_t	DMADRV_TransferCompletePending (unsigned int channelId, bool *pending)
	Check if a transfer complete is pending. More...
Ecode_t	DMADRV_TransferDone (unsigned int channelId, bool *done)
	Check if a transfer has completed. More...
Ecode_t	DMADRV_TransferRemainingCount (unsigned int channelId, int *remaining)
	Get number of items remaining in a transfer. More...