1/* $NetBSD: intr.h,v 1.5 2007/12/11 16:51:13 ad Exp $ */ 2 3/*- 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef _LANDISK_INTR_H_ 30#define _LANDISK_INTR_H_ 31 32#include <sh3/intr.h> 33 34/* Number of interrupt source */ 35#define _INTR_N 16 36 37/* Interrupt priority levels */ 38#define IPL_VM 12 /* low i/o */ 39#define IPL_SCHED 14 /* clock */ 40#define IPL_HIGH 15 /* everything */ 41 42typedef uint8_t ipl_t; 43typedef struct { 44 ipl_t _ipl; 45} ipl_cookie_t; 46 47static inline ipl_cookie_t 48makeiplcookie(ipl_t ipl) 49{ 50 51 return (ipl_cookie_t){._ipl = ipl << 4}; 52} 53 54static inline int 55splraiseipl(ipl_cookie_t icookie) 56{ 57 58 return _cpu_intr_raise(icookie._ipl); 59} 60 61#include <sys/spl.h> 62 63#define spl0() _cpu_intr_resume(IPL_NONE << 4) 64#define splx(x) _cpu_intr_resume(x) 65 66void intr_init(void); 67void *extintr_establish(int irq, int level, int (*func)(void *), void *arg); 68void extintr_disestablish(void *ih); 69void extintr_enable(void *ih); 70void extintr_disable(void *ih); 71void extintr_disable_by_num(int irq); 72 73#endif /* !_LANDISK_INTR_H_ */ 74