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#ifndef __IDT_DMA_V_H__
#define __IDT_DMA_V_H__
/*******************************************************************************
*
* Copyright 2002 Integrated Device Technology, Inc.
* All rights reserved.
*
* DMA register definition.
*
* File : $Id: dma.h,v 1.3 2002/06/06 18:34:03 astichte Exp $
*
* Author : ryan.holmQVist@idt.com
* Date : 20011005
* Update :
* $Log: dma.h,v $
* Revision 1.3 2002/06/06 18:34:03 astichte
* Added XXX_PhysicalAddress and XXX_VirtualAddress
*
* Revision 1.2 2002/06/05 18:30:46 astichte
* Removed IDTField
*
* Revision 1.1 2002/05/29 17:33:21 sysarch
* jba File moved from vcode/include/idt/acacia
*
*
******************************************************************************/
#include <asm/rc32434/dma.h>
#include <asm/rc32434/rc32434.h>
#define DMA_CHAN_OFFSET 0x14
#define IS_DMA_USED(X) (((X) & (DMAD_f_m | DMAD_d_m | DMAD_t_m)) != 0)
#define DMA_COUNT(count) \
((count) & DMAD_count_m)
#define DMA_HALT_TIMEOUT 500
static inline int rc32434_halt_dma(DMA_Chan_t ch)
{
int timeout=1;
if (local_readl(&ch->dmac) & DMAC_run_m) {
local_writel(0, &ch->dmac);
for (timeout = DMA_HALT_TIMEOUT; timeout > 0; timeout--) {
if (local_readl(&ch->dmas) & DMAS_h_m) {
local_writel(0, &ch->dmas);
break;
}
}
}
return timeout ? 0 : 1;
}
static inline void rc32434_start_dma(DMA_Chan_t ch, u32 dma_addr)
{
local_writel(0, &ch->dmandptr);
local_writel(dma_addr, &ch->dmadptr);
}
static inline void rc32434_chain_dma(DMA_Chan_t ch, u32 dma_addr)
{
local_writel(dma_addr, &ch->dmandptr);
}
#endif // __IDT_DMA_V_H__
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