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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* RTEMS generic MPC83xx BSP
*
* This file integrates the IPIC irq controller.
*/
/*
* Copyright (c) 2007 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems.h>
#include <libcpu/powerpc-utility.h>
#include <bsp.h>
#include <bsp/irq.h>
#include <bsp/irq-generic.h>
#include <bsp/vectors.h>
static int qemuppc_exception_handler(
BSP_Exception_frame *frame,
unsigned exception_number
)
{
rtems_panic("Unexpected interrupt occured");
return 0;
}
rtems_status_code bsp_interrupt_get_attributes(
rtems_vector_number vector,
rtems_interrupt_attributes *attributes
)
{
return RTEMS_SUCCESSFUL;
}
rtems_status_code bsp_interrupt_is_pending(
rtems_vector_number vector,
bool *pending
)
{
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
bsp_interrupt_assert(pending != NULL);
*pending = false;
return RTEMS_UNSATISFIED;
}
rtems_status_code bsp_interrupt_raise(rtems_vector_number vector)
{
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
return RTEMS_UNSATISFIED;
}
rtems_status_code bsp_interrupt_clear(rtems_vector_number vector)
{
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
return RTEMS_UNSATISFIED;
}
rtems_status_code bsp_interrupt_vector_is_enabled(
rtems_vector_number vector,
bool *enabled
)
{
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(vector));
bsp_interrupt_assert(enabled != NULL);
*enabled = false;
return RTEMS_UNSATISFIED;
}
/*
* functions to enable/disable a source at the ipic
*/
rtems_status_code bsp_interrupt_vector_enable( rtems_vector_number irqnum)
{
/* FIXME: do something */
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(irqnum));
return RTEMS_SUCCESSFUL;
}
rtems_status_code bsp_interrupt_vector_disable( rtems_vector_number irqnum)
{
/* FIXME: do something */
bsp_interrupt_assert(bsp_interrupt_is_valid_vector(irqnum));
return RTEMS_SUCCESSFUL;
}
void bsp_interrupt_facility_initialize(void)
{
rtems_status_code sc;
/* Install exception handler */
sc = ppc_exc_set_handler( ASM_EXT_VECTOR, qemuppc_exception_handler);
_Assert_Unused_variable_equals( sc, RTEMS_SUCCESSFUL);
}
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