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/* $NetBSD: i80321_intr.h,v 1.5 2004/01/12 10:25:06 scw Exp $ */
/*-
* Copyright (c) 2001, 2002 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*
* $FreeBSD$
*
*/
#ifndef _I80321_INTR_H_
#define _I80321_INTR_H_
#define ARM_IRQ_HANDLER _C_LABEL(i80321_intr_dispatch)
#ifndef _LOCORE
#include <machine/armreg.h>
#include <machine/cpufunc.h>
#include <arm/xscale/i80321/i80321reg.h>
void i80321_do_pending(void);
extern __volatile uint32_t intr_enabled;
extern uint32_t intr_steer;
static __inline void __attribute__((__unused__))
i80321_set_intrmask(void)
{
__asm __volatile("mcr p6, 0, %0, c0, c0, 0"
:
: "r" (intr_enabled & ICU_INT_HWMASK));
}
static __inline void
i80321_set_intrsteer(void)
{
__asm __volatile("mcr p6, 0, %0, c4, c0, 0"
:
: "r" (intr_steer & ICU_INT_HWMASK));
}
#if defined ( CPU_XSCALE_80219 )
#define INT_SWMASK \
((1U << ICU_INT_bit26) | \
(1U << ICU_INT_bit25) | \
(1U << ICU_INT_bit23) | \
(1U << ICU_INT_bit22) | \
(1U << ICU_INT_bit7) | \
(1U << ICU_INT_bit6) | \
(1U << ICU_INT_bit5) | \
(1U << ICU_INT_bit4))
#else
#define INT_SWMASK \
((1U << ICU_INT_bit26) | (1U << ICU_INT_bit22) | \
(1U << ICU_INT_bit5) | (1U << ICU_INT_bit4))
#endif
#if 0
static __inline void __attribute__((__unused__))
i80321_splx(int new)
{
extern __volatile uint32_t intr_enabled;
extern __volatile int current_spl_level;
extern __volatile int i80321_ipending;
extern void i80321_do_pending(void);
int oldirqstate, hwpend;
/* Don't let the compiler re-order this code with preceding code */
__insn_barrier();
current_spl_level = new;
hwpend = (i80321_ipending & ICU_INT_HWMASK) & ~new;
if (hwpend != 0) {
oldirqstate = disable_interrupts(I32_bit);
intr_enabled |= hwpend;
i80321_set_intrmask();
restore_interrupts(oldirqstate);
}
if ((i80321_ipending & INT_SWMASK) & ~new)
i80321_do_pending();
}
static __inline int __attribute__((__unused__))
i80321_splraise(int ipl)
{
extern __volatile int current_spl_level;
extern int i80321_imask[];
int old;
old = current_spl_level;
current_spl_level |= i80321_imask[ipl];
/* Don't let the compiler re-order this code with subsequent code */
__insn_barrier();
return (old);
}
static __inline int __attribute__((__unused__))
i80321_spllower(int ipl)
{
extern __volatile int current_spl_level;
extern int i80321_imask[];
int old = current_spl_level;
i80321_splx(i80321_imask[ipl]);
return(old);
}
#endif
#if !defined(EVBARM_SPL_NOINLINE)
#define splx(new) i80321_splx(new)
#define _spllower(ipl) i80321_spllower(ipl)
#define _splraise(ipl) i80321_splraise(ipl)
void _setsoftintr(int);
#else
int _splraise(int);
int _spllower(int);
void splx(int);
void _setsoftintr(int);
#endif /* ! EVBARM_SPL_NOINLINE */
#endif /* _LOCORE */
#endif /* _I80321_INTR_H_ */
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