/* $NetBSD: pxa2x0_intr.h,v 1.15.34.1 2023/08/09 17:42:04 martin Exp $ */ /* Derived from i80321_intr.h */ /* * 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. */ #ifndef _PXA2X0_INTR_H_ #define _PXA2X0_INTR_H_ #define ARM_IRQ_HANDLER _C_LABEL(pxa2x0_irq_handler) #ifndef _LOCORE #include #include #include #include #include extern vaddr_t pxaic_base; /* Shared with pxa2x0_irq.S */ #define read_icu(offset) (*(volatile uint32_t *)(pxaic_base + (offset))) #define write_icu(offset,value) \ (*(volatile uint32_t *)(pxaic_base + (offset)) = (value)) extern volatile int intr_mask; extern int pxa2x0_imask[]; /* * Cotulla's integrated ICU doesn't have IRQ0..7, so * we map software interrupts to bit 0..3 */ static inline void pxa2x0_setipl(int new) { set_curcpl(new); intr_mask = pxa2x0_imask[new]; write_icu(SAIPIC_MR, intr_mask); } static inline void pxa2x0_splx(int new) { int psw; psw = disable_interrupts(I32_bit); pxa2x0_setipl(new); restore_interrupts(psw); #ifdef __HAVE_FAST_SOFTINTS cpu_dosoftints(); #endif } static inline int pxa2x0_splraise(int ipl) { int old, psw; old = curcpl(); if (ipl > old) { psw = disable_interrupts(I32_bit); pxa2x0_setipl(ipl); restore_interrupts(psw); } return old; } static inline int pxa2x0_spllower(int ipl) { int old = curcpl(); int psw = disable_interrupts(I32_bit); pxa2x0_splx(ipl); restore_interrupts(psw); return old; } int _splraise(int); int _spllower(int); void splx(int); #if !defined(EVBARM_SPL_NOINLINE) #define splx(new) pxa2x0_splx(new) #define _spllower(ipl) pxa2x0_spllower(ipl) #define _splraise(ipl) pxa2x0_splraise(ipl) #endif /* !EVBARM_SPL_NOINTR */ /* * This function *MUST* be called very early on in a port's * initarm() function, before ANY spl*() functions are called. * * The parameter is the virtual address of the PXA2x0's Interrupt * Controller registers. */ void pxa2x0_intr_bootstrap(vaddr_t); void pxa2x0_irq_handler(void *); void *pxa2x0_intr_establish(int irqno, int level, int (*func)(void *), void *cookie); void pxa2x0_intr_disestablish(void *cookie); void pxa2x0_update_intr_masks(int irqno, int level); #endif /* ! _LOCORE */ #endif /* _PXA2X0_INTR_H_ */