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/*
* Clock Tick interrupt conexion code.
*
* COPYRIGHT (c) 1989-1997.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may in
* the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*
* Modified to support the MPC750.
* Modifications Copyright (c) 1999 Eric Valette valette@crf.canon.fr
*/
#include <bsp.h>
#include <bsp/irq-generic.h>
#include <rtems/bspIo.h>
extern void clockOn(void*);
extern void clockOff (void*);
extern int clockIsOn(void*);
extern void Clock_isr(void*);
void BSP_clock_hdl(void * arg)
{
Clock_isr(arg);
}
int BSP_get_clock_irq_level(void)
{
/*
* Caution : if you change this, you must change the
* definition of BSP_PERIODIC_TIMER accordingly
*/
return 6;
}
int BSP_disconnect_clock_handler (void)
{
rtems_status_code sc;
clockOff(NULL);
/*
* remove interrupt handler
*/
sc = rtems_interrupt_handler_remove(BSP_PERIODIC_TIMER,
BSP_clock_hdl,NULL);
return sc == RTEMS_SUCCESSFUL;
}
int BSP_connect_clock_handler (rtems_irq_hdl hdl)
{
rtems_status_code sc;
/*
* install interrupt handler
*/
sc = rtems_interrupt_handler_install(BSP_PERIODIC_TIMER,
"PIT clock",0,
BSP_clock_hdl,NULL);
if (sc == RTEMS_SUCCESSFUL) {
clockOn(NULL);
}
return sc == RTEMS_SUCCESSFUL;
}
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