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/*
*
* This file contains the implementation of the function described in irq.h
*
* COPYRIGHT (c) 1989-2009.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <rtems.h>
#include <bsp.h>
#include <bsp/irq.h>
#include <bsp/irq_supp.h>
#include <bsp/vectors.h>
static rtems_irq_connect_data *rtems_hdl_tbl;
static rtems_irq_connect_data dflt_entry;
/*
* High level IRQ handler called from shared_raw_irq_code_entry
*/
int C_dispatch_irq_handler(
BSP_Exception_frame *frame,
unsigned int excNum
)
{
register unsigned int irq;
#if (HAS_PMC_PSC8)
uint16_t check_irq;
uint16_t status_word;
#endif
if (excNum == ASM_DEC_VECTOR) {
bsp_irq_dispatch_list(rtems_hdl_tbl, BSP_DECREMENTER, dflt_entry.hdl);
return 0;
}
irq = read_and_clear_irq();
#if (HAS_PMC_PSC8)
if (irq == SCORE603E_PCI_IRQ_0) {
status_word = read_and_clear_PMC_irq( irq );
for (check_irq=SCORE603E_IRQ16; check_irq<=SCORE603E_IRQ19; check_irq++) {
if ( Is_PMC_IRQ( check_irq, status_word )) {
bsp_irq_dispatch_list_base(rtems_hdl_tbl, check_irq, dflt_entry.hdl);
}
}
} else
#endif
{
bsp_irq_dispatch_list_base(rtems_hdl_tbl, irq, dflt_entry.hdl);
}
return 0;
}
void
BSP_enable_irq_at_pic(const rtems_irq_number irq)
{
uint16_t vec_idx = irq - Score_IRQ_First;
unmask_irq( vec_idx );
}
int
BSP_disable_irq_at_pic(const rtems_irq_number irq)
{
uint16_t vec_idx = irq - Score_IRQ_First;
unmask_irq( vec_idx );
return 0;
}
int
BSP_setup_the_pic(rtems_irq_global_settings *config)
{
dflt_entry = config->defaultEntry;
rtems_hdl_tbl = config->irqHdlTbl;
init_irq_data_register();
return 1;
}
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