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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Maurus Cuelenaere
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "system.h"
void memset(void *target, unsigned char c, size_t len)
{
int ch = DMA_CHANNEL;
unsigned int d;
unsigned char *dp;
if(len < 32)
_memset(target,c,len);
else
{
if(((unsigned int)target < 0xa0000000) && len)
dma_cache_wback_inv((unsigned long)target, len);
dp = (unsigned char *)((unsigned int)(&d) | 0xa0000000);
*(dp + 0) = c;
*(dp + 1) = c;
*(dp + 2) = c;
*(dp + 3) = c;
REG_DMAC_DSAR(ch) = PHYSADDR((unsigned long)dp);
REG_DMAC_DTAR(ch) = PHYSADDR((unsigned long)target);
REG_DMAC_DTCR(ch) = len / 32;
REG_DMAC_DRSR(ch) = DMAC_DRSR_RS_AUTO;
REG_DMAC_DCMD(ch) = DMAC_DCMD_DAI | DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | DMAC_DCMD_DS_32BYTE;
REG_DMAC_DCCSR(ch) = DMAC_DCCSR_EN | DMAC_DCCSR_NDES;
while (REG_DMAC_DTCR(ch));
if(len % 32)
{
dp = (unsigned char *)((unsigned int)target + (len & (32 - 1)));
for(d = 0;d < (len % 32); d++)
*dp++ = c;
}
}
}
void memset16(void *target, unsigned short c, size_t len)
{
int ch = DMA_CHANNEL;
unsigned short d;
unsigned short *dp;
if(len < 32)
_memset16(target,c,len);
else
{
if(((unsigned int)target < 0xa0000000) && len)
dma_cache_wback_inv((unsigned long)target, len);
d = c;
REG_DMAC_DSAR(ch) = PHYSADDR((unsigned long)&d);
REG_DMAC_DTAR(ch) = PHYSADDR((unsigned long)target);
REG_DMAC_DTCR(ch) = len / 32;
REG_DMAC_DRSR(ch) = DMAC_DRSR_RS_AUTO;
REG_DMAC_DCMD(ch) = DMAC_DCMD_DAI | DMAC_DCMD_SWDH_16 | DMAC_DCMD_DWDH_16 | DMAC_DCMD_DS_32BYTE;
REG_DMAC_DCCSR(ch) = DMAC_DCCSR_EN | DMAC_DCCSR_NDES;
while (REG_DMAC_DTCR(ch));
if(len % 32)
{
dp = (unsigned short *)((unsigned int)target + (len & (32 - 1)));
for(d = 0; d < (len % 32); d++)
*dp++ = c;
}
}
}
void memcpy(void *target, const void *source, size_t len)
{
int ch = DMA_CHANNEL;
unsigned char *dp;
if(len < 4)
_memcpy(target, source, len);
if(((unsigned int)source < 0xa0000000) && len)
dma_cache_wback_inv((unsigned long)source, len);
if(((unsigned int)target < 0xa0000000) && len)
dma_cache_wback_inv((unsigned long)target, len);
REG_DMAC_DSAR(ch) = PHYSADDR((unsigned long)source);
REG_DMAC_DTAR(ch) = PHYSADDR((unsigned long)target);
REG_DMAC_DTCR(ch) = len / 4;
REG_DMAC_DRSR(ch) = DMAC_DRSR_RS_AUTO;
REG_DMAC_DCMD(ch) = DMAC_DCMD_DAI | DMAC_DCMD_SWDH_32 | DMAC_DCMD_DWDH_32 | DMAC_DCMD_DS_32BIT;
REG_DMAC_DCCSR(ch) = DMAC_DCCSR_EN | DMAC_DCCSR_NDES;
while (REG_DMAC_DTCR(ch));
if(len % 4)
{
dp = (unsigned char*)((unsigned int)target + (len & (4 - 1)));
for(i = 0; i < (len % 4); i++)
*dp++ = *source;
}
}
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