1 /* $NetBSD: intr.h,v 1.1 2001/06/14 12:57:11 fredette Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Matt Fredette. 5 * Copyright (c) 1998 Matt Thomas. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the company nor the names of the authors may be used to 17 * endorse or promote products derived from this software without specific 18 * prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR IMPLIED 21 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 24 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 25 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 26 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #ifndef _SUN68K_INTR_H_ 34 #define _SUN68K_INTR_H_ 35 36 #include <sys/queue.h> 37 38 /* 39 * Interrupt levels. Right now these correspond to real 40 * hardware levels, but I don't think anything counts on 41 * that (yet?). 42 */ 43 #define _IPL_SOFT_LEVEL1 1 44 #define _IPL_SOFT_LEVEL2 2 45 #define _IPL_SOFT_LEVEL3 3 46 #define _IPL_SOFT_LEVEL_MIN 1 47 #define _IPL_SOFT_LEVEL_MAX 3 48 #define IPL_SOFTNET _IPL_SOFT_LEVEL1 49 #define IPL_SOFTCLOCK _IPL_SOFT_LEVEL1 50 #define IPL_SOFTSERIAL _IPL_SOFT_LEVEL3 51 #define IPL_BIO 2 52 #define IPL_NET 3 53 #define IPL_CLOCK 5 54 #define IPL_SERIAL 6 55 56 #ifdef _KERNEL 57 LIST_HEAD(sh_head, softintr_handler); 58 59 struct softintr_head { 60 int shd_ipl; 61 struct sh_head shd_intrs; 62 }; 63 64 struct softintr_handler { 65 struct softintr_head *sh_head; 66 LIST_ENTRY(softintr_handler) sh_link; 67 void (*sh_func)(void *); 68 void *sh_arg; 69 int sh_pending; 70 }; 71 72 extern void softintr_init __P((void)); 73 extern void *softintr_establish __P((int, void (*)(void *), void *)); 74 extern void softintr_disestablish __P((void *)); 75 76 static __inline void 77 softintr_schedule(void *arg) 78 { 79 struct softintr_handler * const sh = arg; 80 if (sh->sh_pending == 0) { 81 sh->sh_pending = 1; 82 isr_soft_request(sh->sh_head->shd_ipl); 83 } 84 } 85 86 /* These connect interrupt handlers. */ 87 typedef int (*isr_func_t) __P((void *)); 88 extern void isr_add_autovect __P((isr_func_t, void *arg, int level)); 89 extern void isr_add_vectored __P((isr_func_t, void *arg, int pri, int vec)); 90 extern void isr_add_custom __P((int, void *)); 91 92 #endif /* _KERNEL */ 93 #endif /* _SUN68K_INTR_H */ 94