1 /* $NetBSD: intr.h,v 1.2 2001/09/05 17:00:20 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1997 Mark Brinicombe. 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Mark Brinicombe 18 * for the NetBSD Project. 19 * 4. The name of the company nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifndef _EVBARM_INTR_H_ 37 #define _EVBARM_INTR_H_ 38 39 /* Define the various Interrupt Priority Levels */ 40 41 /* Interrupt Priority Levels are mutually exclusive. */ 42 43 #define IPL_NONE 0 /* no interrupts blocked */ 44 #define IPL_SOFT 1 /* generic soft interrupts */ 45 #define IPL_SOFTCLOCK 2 /* clock soft interrupts */ 46 #define IPL_SOFTNET 3 /* network soft interrupts */ 47 #define IPL_SOFTSERIAL 4 /* serial soft interrupts */ 48 #define IPL_BIO 5 /* block I/O */ 49 #define IPL_NET 6 /* network */ 50 #define IPL_TTY 7 /* terminal */ 51 #define IPL_IMP 8 /* memory allocation */ 52 #define IPL_AUDIO 9 /* audio */ 53 #define IPL_CLOCK 10 /* clock */ 54 #define IPL_SERIAL 11 /* serial */ 55 #define IPL_PERF 12 /* peformance monitoring unit */ 56 #define IPL_HIGH 13 /* blocks all interrupts */ 57 58 #define IPL_LEVELS 14 59 60 #define IST_UNUSABLE -1 /* interrupt cannot be used */ 61 #define IST_NONE 0 /* none (dummy) */ 62 #define IST_PULSE 1 /* pulsed */ 63 #define IST_EDGE 2 /* edge-triggered */ 64 #define IST_LEVEL 3 /* level-triggered */ 65 66 #if defined (_KERNEL) && !defined(_LOCORE) 67 #include <sys/queue.h> 68 #include <sys/device.h> 69 70 extern int _splraise(int); 71 extern int _spllower(int); 72 extern int _splget(int); 73 extern int _splset(int); 74 extern int _splnone(void); 75 extern void _softintrset(int); 76 extern int _softintrclr(int); 77 78 #define splsoftclock() _splraise(IPL_SOFTCLOCK) 79 #define splsoftnet() _splraise(IPL_SOFTNET) 80 #define splsoftserial() _splraise(IPL_SOFTSERIAL) 81 #define splbio() _splraise(IPL_BIO) 82 #define splnet() _splraise(IPL_NET) 83 #define spltty() _splraise(IPL_TTY) 84 #define splvm() _splraise(IPL_IMP) 85 #define splaudio() _splraise(IPL_AUDIO) 86 #define splclock() _splraise(IPL_CLOCK) 87 #define splserial() _splraise(IPL_SERIAL) 88 #define splhigh() _splraise(IPL_HIGH) 89 #define spl0() (void) _splnone() 90 #define splx(s) (void) _splset(s) 91 92 #define spllock() splhigh() 93 #define splsched() splclock() 94 #define splstatclock() splclock() 95 96 #define spllowersoftclock() _spllower(IPL_SOFTCLOCK) 97 98 #define setsoftclock() _softintrset(IPL_SOFTCLOCK) 99 #define setsoftnet() _softintrset(IPL_SOFTNET) 100 #define setsoftserial() _softintrset(IPL_SOFTSERIAL) 101 102 #define _SPL_0 IPL_NONE 103 104 struct intrsource { 105 void *is_cookie; 106 LIST_ENTRY(evbarm_intrsource) is_link; 107 void *(*is_establish)(void *, int, int, int (*)(void *), void *); 108 void (*is_disestablish)(void *, void *); 109 110 void (*is_setmask)(int); 111 }; 112 113 #define intr_establish(src, irq, type, func, arg) \ 114 (((src)->is_establish)((src)->is_cookie, irq, type, func, arg)) 115 #define intr_disestablish(src, ih) \ 116 (((src)->is_disestablish)((src)->is_cookie, ih)) 117 118 struct irqhandler { 119 LIST_ENTRY(intrhandler) ih_ipllink; 120 LIST_ENTRY(intrhandler) ih_srclink; 121 int (*ih_func)(void *); 122 void *ih_arg; 123 int ih_flags; 124 int ih_ipl; 125 struct evcnt ih_ev; 126 }; 127 128 struct fiqhandler { 129 void (*fh_func)(void); /* handler function */ 130 size_t fh_size; /* Size of handler function */ 131 register_t fh_r8; /* FIQ mode r8 */ 132 register_t fh_r9; /* FIQ mode r9 */ 133 register_t fh_r10; /* FIQ mode r10 */ 134 register_t fh_r11; /* FIQ mode r11 */ 135 register_t fh_r12; /* FIQ mode r12 */ 136 register_t fh_r13; /* FIQ mode r13 */ 137 }; 138 139 #endif /* _KERNEL */ 140 141 #endif /* _EVBARM_INTR_H */ 142