1 /* $NetBSD: intr.h,v 1.10 2007/10/17 19:52:54 garbled 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/device.h> 43 #include <sys/lock.h> 44 #include <sys/queue.h> 45 46 #define IPL_NONE 0 /* disable only this interrupt */ 47 #define IPL_SOFT 1 /* generic software interrupts (SI 0) */ 48 #define IPL_SOFTCLOCK 2 /* clock software interrupts (SI 0) */ 49 #define IPL_SOFTNET 3 /* network software interrupts (SI 1) */ 50 #define IPL_SOFTSERIAL 4 /* serial software interrupts (SI 1) */ 51 #define IPL_BIO 5 /* disable block I/O interrupts */ 52 #define IPL_NET 6 /* disable network interrupts */ 53 #define IPL_TTY 7 /* disable terminal interrupts */ 54 #define IPL_LPT IPL_TTY 55 #define IPL_VM IPL_TTY 56 #define IPL_SERIAL 7 /* disable serial interrupts */ 57 #define IPL_CLOCK 8 /* disable clock interrupts */ 58 #define IPL_STATCLOCK IPL_CLOCK 59 #define IPL_SCHED IPL_CLOCK 60 #define IPL_HIGH 8 /* disable all interrupts */ 61 #define IPL_LOCK IPL_HIGH 62 63 #define _IPL_N 9 64 65 #define _IPL_SI0_FIRST IPL_SOFT 66 #define _IPL_SI0_LAST IPL_SOFTCLOCK 67 68 #define _IPL_SI1_FIRST IPL_SOFTNET 69 #define _IPL_SI1_LAST IPL_SOFTSERIAL 70 71 #define SI_SOFT 0 72 #define SI_SOFTCLOCK 1 73 #define SI_SOFTNET 2 74 #define SI_SOFTSERIAL 3 75 76 #define SI_NQUEUES 4 77 78 #define SI_QUEUENAMES { \ 79 "misc", \ 80 "clock", \ 81 "net", \ 82 "serial", \ 83 } 84 85 #define IST_UNUSABLE -1 /* interrupt cannot be used */ 86 #define IST_NONE 0 /* none (dummy) */ 87 #define IST_PULSE 1 /* pulsed */ 88 #define IST_EDGE 2 /* edge-triggered */ 89 #define IST_LEVEL 3 /* level-triggered */ 90 91 #ifdef _KERNEL 92 93 #include <mips/locore.h> 94 95 extern const u_int32_t ipl_sr_bits[_IPL_N]; 96 97 #define spl0() (void) _spllower(0) 98 #define splx(s) (void) _splset(s) 99 100 #define splsoft() _splraise(ipl_sr_bits[IPL_SOFT]) 101 102 typedef int ipl_t; 103 typedef struct { 104 ipl_t _sr; 105 } ipl_cookie_t; 106 107 static inline ipl_cookie_t 108 makeiplcookie(ipl_t ipl) 109 { 110 111 return (ipl_cookie_t){._sr = ipl_sr_bits[ipl]}; 112 } 113 114 static inline int 115 splraiseipl(ipl_cookie_t icookie) 116 { 117 118 return _splraise(icookie._sr); 119 } 120 121 #include <sys/spl.h> 122 123 struct algor_intrhand { 124 LIST_ENTRY(algor_intrhand) ih_q; 125 int (*ih_func)(void *); 126 void *ih_arg; 127 int ih_irq; /* mostly for ISA */ 128 const void *ih_irqmap; 129 }; 130 131 #include <mips/softintr.h> 132 133 extern struct evcnt mips_int5_evcnt; 134 135 void intr_init(void); 136 void *(*algor_intr_establish)(int, int (*)(void *), void *); 137 void (*algor_intr_disestablish)(void *); 138 139 #endif /* _KERNEL */ 140 #endif /* ! _ALGOR_INTR_H_ */ 141