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added interface structure to make the MCD DMA available to MiNT (DMAC cookie). MinT's FEC driver works somewhat, but not reliable yet.

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This commit is contained in:
Markus Fröschle
2014-01-01 21:28:17 +00:00
parent 4d37bfcf42
commit dcf0797f11
15 changed files with 589 additions and 625 deletions
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37
sys/interrupts.c
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@@ -36,7 +36,7 @@ extern void (*rt_vbr[])(void);
#define IRQ_DEBUG
#if defined(IRQ_DEBUG)
#define dbg(format, arg...) do { xprintf("DEBUG: " format "\r\n", ##arg); } while (0)
#define dbg(format, arg...) do { xprintf("DEBUG: " format, ##arg); } while (0)
#else
#define dbg(format, arg...) do { ; } while (0)
#endif
@@ -57,7 +57,7 @@ int register_interrupt_handler(uint8_t source, uint8_t level, uint8_t priority,
if (source < 1 || source > 63)
{
xprintf("%s: interrupt source %d not defined\r\n", __FUNCTION__, source);
dbg("%s: interrupt source %d not defined\r\n", __FUNCTION__, source);
return -1;
}
@@ -68,7 +68,7 @@ int register_interrupt_handler(uint8_t source, uint8_t level, uint8_t priority,
{
if (ICR[i] == lp)
{
xprintf("%s: level %d and priority %d already used for interrupt source %d!\r\n", __FUNCTION__,
dbg("%s: level %d and priority %d already used for interrupt source %d!\r\n", __FUNCTION__,
level, priority, i);
return -1;
}
@@ -158,10 +158,12 @@ int isr_register_handler(int type, int vector,
isrtab[index].handler = handler;
isrtab[index].hdev = hdev;
isrtab[index].harg = harg;
return true;
}
}
dbg("%s: no available slots\n\t", __FUNCTION__);
dbg("%s: no available slots to register handler for vector %d\n\r", __FUNCTION__, vector);
return false; /* no available slots */
}
@@ -183,8 +185,11 @@ void isr_remove_handler(int type, int (*handler)(void *, void *))
isrtab[index].handler = 0;
isrtab[index].hdev = 0;
isrtab[index].harg = 0;
return;
}
}
dbg("%s: no such handler registered (type=%d, handler=%p\r\n", __FUNCTION__, type, handler);
}
@@ -205,32 +210,14 @@ bool isr_execute_handler(int vector)
if ((isrtab[index].vector == vector) &&
(isrtab[index].type == ISR_DBUG_ISR))
{
xprintf("calling BaS isr handler at %p\r\n", isrtab[index].handler);
retval = true;
if (isrtab[index].handler(isrtab[index].hdev,isrtab[index].harg))
{
retval = true;
break;
return retval;
}
}
}
/*
* Try to locate a user-registered Interrupt Service Routine handler.
*/
for (index = 0; index < UIF_MAX_ISR_ENTRY; index++)
{
if ((isrtab[index].vector == vector) &&
(isrtab[index].type == ISR_USER_ISR))
{
xprintf("calling USR isr handler at %p\r\n", isrtab[index].handler);
if (isrtab[index].handler(isrtab[index].hdev,isrtab[index].harg))
{
retval = true;
break;
}
}
}
dbg("%s: no BaS isr handler for vector %d found\r\n", __FUNCTION__, vector);
return retval;
}