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added dbug's fec and network routines

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This commit is contained in:
Markus Fröschle
2013-12-20 15:01:54 +00:00
parent 87e594a928
commit aea881f0b0
23 changed files with 3219 additions and 438 deletions
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55
BaS_gcc/dma/dma.c
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@@ -37,12 +37,61 @@
extern char _SYS_SRAM[];
#define SYS_SRAM &_SYS_SRAM[0]
void print_sp(void)
struct dma_channel
{
register char *sp asm("sp");
xprintf("sp=%x\r\n", sp);
int req;
void (*handler)(void);
};
static struct dma_channel dma_channel[NCHANNELS] =
{
{-1,NULL}, {-1,NULL}, {-1,NULL}, {-1,NULL},
{-1,NULL}, {-1,NULL}, {-1,NULL}, {-1,NULL},
{-1,NULL}, {-1,NULL}, {-1,NULL}, {-1,NULL},
{-1,NULL}, {-1,NULL}, {-1,NULL}, {-1,NULL},
};
/*
* return the channel being initiated by the given requestor
*/
int dma_get_channel(int requestor)
{
int i;
for (i = 0; i < NCHANNELS; i++)
{
if (dma_channel[i].req == requestor)
{
return i;
}
}
return -1;
}
int dma_set_channel(int requestor, void (*handler)(void))
{
int i;
/* check to see if requestor is already assigned to a channel */
if ((i = dma_get_channel(requestor)) != -1)
{
return i;
}
for (i = 0; i < NCHANNELS; i++)
{
if (dma_channel[i].req == -1)
{
dma_channel[i].req = requestor;
dma_channel[i].handler = handler;
return i;
}
}
/* all channels taken */
return -1;
}
void *dma_memcpy(void *dst, void *src, size_t n)
{