/*
* Copyright (C) 2005 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/** @addtogroup sparc64interrupt
* @{
*/
/** @file
*/
#include <arch/interrupt.h>
#include <arch/trap/interrupt.h>
#include <interrupt.h>
#include <arch/drivers/fhc.h>
#include <arch/types.h>
#include <debug.h>
#include <ipc/sysipc.h>
#include <arch/asm.h>
#include <arch/barrier.h>
#include <genarch/kbd/z8530.h>
/** Register Interrupt Level Handler.
*
* @param n Interrupt Level (1 - 15).
* @param name Short descriptive string.
* @param f Handler.
*/
void interrupt_register(int n, const char *name, iroutine f)
{
ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);
exc_register(n - 1, name, f);
}
/* Reregister irq to be IPC-ready */
void irq_ipc_bind_arch(unative_t irq)
{
panic("not implemented\n");
/* TODO */
}
void interrupt(void)
{
uint64_t intrcv;
uint64_t data0;
intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);
data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0);
switch (data0) {
#ifdef CONFIG_Z8530
case Z8530_INTRCV_DATA0:
/*
* So far, we know we got this interrupt through the FHC.
* Since we don't have enough information about the FHC and
* because the interrupt looks like level sensitive,
* we cannot handle it by scheduling one of the level
* interrupt traps. Call the interrupt handler directly.
*/
fhc_uart_reset();
z8530_interrupt();
break;
#endif
}
membar();
asi_u64_write(ASI_INTR_RECEIVE, 0, 0);
}
/** @}
*/