1 /* $NetBSD: intr.h,v 1.12 2008/01/04 22:54:46 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _ALGOR_INTR_H_ 40 #define _ALGOR_INTR_H_ 41 42 #include <sys/evcnt.h> 43 #include <sys/queue.h> 44 45 #define IPL_NONE 0 /* disable only this interrupt */ 46 #define IPL_SOFTCLOCK 1 /* generic software interrupts (SI 0) */ 47 #define IPL_SOFTBIO 1 /* clock software interrupts (SI 0) */ 48 #define IPL_SOFTNET 2 /* network software interrupts (SI 1) */ 49 #define IPL_SOFTSERIAL 2 /* serial software interrupts (SI 1) */ 50 #define IPL_VM 3 51 #define IPL_SCHED 4 52 #define IPL_HIGH 4 /* disable all interrupts */ 53 54 #define _IPL_N 5 55 56 #define _IPL_SI0_FIRST IPL_SOFTCLOCK 57 #define _IPL_SI0_LAST IPL_SOFTBIO 58 59 #define _IPL_SI1_FIRST IPL_SOFTNET 60 #define _IPL_SI1_LAST IPL_SOFTSERIAL 61 62 #define IST_UNUSABLE -1 /* interrupt cannot be used */ 63 #define IST_NONE 0 /* none (dummy) */ 64 #define IST_PULSE 1 /* pulsed */ 65 #define IST_EDGE 2 /* edge-triggered */ 66 #define IST_LEVEL 3 /* level-triggered */ 67 68 #ifdef _KERNEL 69 70 #include <mips/locore.h> 71 72 extern const u_int32_t ipl_sr_bits[_IPL_N]; 73 74 #define spl0() (void) _spllower(0) 75 #define splx(s) (void) _splset(s) 76 77 typedef int ipl_t; 78 typedef struct { 79 ipl_t _sr; 80 } ipl_cookie_t; 81 82 static inline ipl_cookie_t 83 makeiplcookie(ipl_t ipl) 84 { 85 86 return (ipl_cookie_t){._sr = ipl_sr_bits[ipl]}; 87 } 88 89 static inline int 90 splraiseipl(ipl_cookie_t icookie) 91 { 92 93 return _splraise(icookie._sr); 94 } 95 96 #include <sys/spl.h> 97 98 struct algor_intrhand { 99 LIST_ENTRY(algor_intrhand) ih_q; 100 int (*ih_func)(void *); 101 void *ih_arg; 102 int ih_irq; /* mostly for ISA */ 103 const void *ih_irqmap; 104 }; 105 106 #include <mips/softintr.h> 107 108 extern struct evcnt mips_int5_evcnt; 109 110 void intr_init(void); 111 void *(*algor_intr_establish)(int, int (*)(void *), void *); 112 void (*algor_intr_disestablish)(void *); 113 114 #endif /* _KERNEL */ 115 #endif /* ! _ALGOR_INTR_H_ */ 116