deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

modified at91 interrupt code from contiki to use the mc1322x registers

Browse source 
and to produce code that works with THUMB.
This commit is contained in:
Mariano Alvira 2009-04-20 15:42:21 -04:00
parent 4f45e43984
commit cfd985c837
4 changed files with 325 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

17
src/sys-interrupt.c
View file

@ -1,6 +1,7 @@
#include <sys-interrupt.h>
#include <interrupt-utils.h>
#include <AT91SAM7S64.h>
#include "sys-interrupt.h"
#include "interrupt-utils.h"
#include "embedded_types.h"
#define ATTR
@ -30,24 +31,20 @@ system_int (void) /* System Interrupt Handler */
{
ISR_ENTRY();
system_int_safe();
*AT91C_AIC_EOICR = 0; /* End of Interrupt */
ISR_EXIT();
}
static unsigned int enabled = 0; /* Number of times the system
interrupt has been enabled */
#define DIS_INT *AT91C_AIC_IDCR = (1 << AT91C_ID_SYS)
#define EN_INT if (enabled > 0) *AT91C_AIC_IECR = (1 << AT91C_ID_SYS)
#define INTCNTL 0x80020000
#define DIS_INT *((volatile uint32_t *)INTCNTL) = 3 << 19;
#define EN_INT if (enabled > 0) *((volatile uint32_t *)INTCNTL) = 0;
void
sys_interrupt_enable()
{
if (enabled++ == 0) {
/* Level trigged at priority 5 */
AT91C_AIC_SMR[AT91C_ID_SYS] = AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL | 5;
/* Interrupt vector */
AT91C_AIC_SVR[AT91C_ID_SYS] = (unsigned long) system_int;
/* Enable */
EN_INT;
}