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cc253x: DMA Changes

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- Fixed DMA irq flag clearing
- Added a dma_reset helper

See Pull Request #18
This commit is contained in:
Philippe Rétornaz 2012-08-03 16:08:07 +02:00 • committed by George Oikonomou
parent 898bd07810
commit eabaa0c8e4
3 changed files with 31 additions and 4 deletions
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4
cpu/cc253x/dev/dma.h
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@ -12,6 +12,7 @@
#ifndef __DMA_H
#define __DMA_H
#include "cc253x.h"
#include "sfr-bits.h"
/* DMA triggers */
#define DMA_T_NONE 0 /* None, DMAREQ.DMAREQx bits start transfer */
@ -133,12 +134,13 @@ extern dma_config_t dma_conf[DMA_CHANNEL_COUNT];
*/
#define DMA_STATUS(c) (DMAIRQ &(1 << c))
/* Abort Ongoing DMA Transfers on Channel C */
#define DMA_ABORT(c) (DMAARM = ABORT | (1 << c))
#define DMA_ABORT(c) (DMAARM = DMAARM_ABORT | (1 << c))
#define DMA_ABORT_ALL() (DMAARM = 0x9F) /* Abort ALL Ongoing DMA Transfers */
/* Functions Declarations */
void dma_init(void);
void dma_associate_process (struct process * p, uint8_t c);
void dma_reset(uint8_t c);
/* Only link the ISR when DMA_ON is .... on */
#if DMA_ON