1 /* $NetBSD: intr.h,v 1.13 2008/04/28 20:23:10 martin 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _ALGOR_INTR_H_ 33 #define _ALGOR_INTR_H_ 34 35 #include <sys/evcnt.h> 36 #include <sys/queue.h> 37 38 #define IPL_NONE 0 /* disable only this interrupt */ 39 #define IPL_SOFTCLOCK 1 /* generic software interrupts (SI 0) */ 40 #define IPL_SOFTBIO 1 /* clock software interrupts (SI 0) */ 41 #define IPL_SOFTNET 2 /* network software interrupts (SI 1) */ 42 #define IPL_SOFTSERIAL 2 /* serial software interrupts (SI 1) */ 43 #define IPL_VM 3 44 #define IPL_SCHED 4 45 #define IPL_HIGH 4 /* disable all interrupts */ 46 47 #define _IPL_N 5 48 49 #define _IPL_SI0_FIRST IPL_SOFTCLOCK 50 #define _IPL_SI0_LAST IPL_SOFTBIO 51 52 #define _IPL_SI1_FIRST IPL_SOFTNET 53 #define _IPL_SI1_LAST IPL_SOFTSERIAL 54 55 #define IST_UNUSABLE -1 /* interrupt cannot be used */ 56 #define IST_NONE 0 /* none (dummy) */ 57 #define IST_PULSE 1 /* pulsed */ 58 #define IST_EDGE 2 /* edge-triggered */ 59 #define IST_LEVEL 3 /* level-triggered */ 60 61 #ifdef _KERNEL 62 63 #include <mips/locore.h> 64 65 extern const u_int32_t ipl_sr_bits[_IPL_N]; 66 67 #define spl0() (void) _spllower(0) 68 #define splx(s) (void) _splset(s) 69 70 typedef int ipl_t; 71 typedef struct { 72 ipl_t _sr; 73 } ipl_cookie_t; 74 75 static inline ipl_cookie_t 76 makeiplcookie(ipl_t ipl) 77 { 78 79 return (ipl_cookie_t){._sr = ipl_sr_bits[ipl]}; 80 } 81 82 static inline int 83 splraiseipl(ipl_cookie_t icookie) 84 { 85 86 return _splraise(icookie._sr); 87 } 88 89 #include <sys/spl.h> 90 91 struct algor_intrhand { 92 LIST_ENTRY(algor_intrhand) ih_q; 93 int (*ih_func)(void *); 94 void *ih_arg; 95 int ih_irq; /* mostly for ISA */ 96 const void *ih_irqmap; 97 }; 98 99 #include <mips/softintr.h> 100 101 extern struct evcnt mips_int5_evcnt; 102 103 void intr_init(void); 104 void *(*algor_intr_establish)(int, int (*)(void *), void *); 105 void (*algor_intr_disestablish)(void *); 106 107 #endif /* _KERNEL */ 108 #endif /* ! _ALGOR_INTR_H_ */ 109