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This version is working again, except network. For some reason, the DMA

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interrupts don't seem to be triggered.
This commit is contained in:
Markus Fröschle
2015-01-09 20:12:03 +00:00
parent a9d62f28fb
commit cb5bd09713
13 changed files with 475 additions and 472 deletions
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16
dma/dma.c
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@@ -86,9 +86,8 @@ static struct dma_channel dma_channel[NCHANNELS] =
void dma_irq_enable(uint8_t lvl, uint8_t pri)
{
/* Setup the DMA ICR (#48) */
MCF_INTC_ICR48 = 0
| MCF_INTC_ICR_IP(pri)
| MCF_INTC_ICR_IL(lvl);
MCF_INTC_ICR48 = MCF_INTC_ICR_IP(pri) |
MCF_INTC_ICR_IL(lvl);
dbg("DMA irq assigned level %d, priority %d\r\n", lvl, pri);
/* Unmask all task interrupts */
@@ -479,7 +478,9 @@ int dma_set_channel(int requestor, void (*handler)(void))
/* Check to see if this requestor is already assigned to a channel */
dbg("check if requestor %d is already assigned to a channel\r\n", requestor);
if ((i = dma_get_channel(requestor)) != -1)
{
return i;
}
for (i = 0; i < NCHANNELS; ++i)
{
@@ -560,7 +561,7 @@ int dma_interrupt_handler(void *arg1, void *arg2)
int i, interrupts;
uint32_t ipl;
ipl = set_ipl(7); /* do not disturb */
ipl = set_ipl(7); /* do not disturb */
/*
* Determine which interrupt(s) triggered by AND'ing the
@@ -571,10 +572,11 @@ int dma_interrupt_handler(void *arg1, void *arg2)
/* Make sure we are here for a reason */
if (interrupts == 0)
{
dbg("not DMA interrupt!\r\n");
err("not DMA interrupt!\r\n");
return 0;
}
dbg("");
/* Clear the interrupt in the pending register */
MCF_DMA_DIPR = interrupts;
@@ -593,7 +595,7 @@ int dma_interrupt_handler(void *arg1, void *arg2)
set_ipl(ipl);
return 1; /* handled */
return 1; /* handled */
}
/********************************************************************/
@@ -674,7 +676,7 @@ int dma_init(void)
}
// test
dma_memcpy((void *) 0x10000, (void *) 0x03e00000, 0x00100000); /* copy one megabyte of flash to RAM */
dma_memcpy((void *) 0x10000, (void *) 0x03e00000, 0x00100000); /* copy one megabyte of flash to RAM */
return 0;
}