1 /* $NetBSD: intr.h,v 1.2 2007/10/17 19:56:40 garbled Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Michael Lorenz 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. Neither the name of The NetBSD Foundation nor the names of its 16 * contributors may be used to endorse or promote products derived 17 * from this software without specific prior written permission. 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 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: intr.h,v 1.2 2007/10/17 19:56:40 garbled Exp $"); 34 35 #ifndef POWERPC_INTR_MACHDEP_H 36 #define POWERPC_INTR_MACHDEP_H 37 38 void *intr_establish(int, int, int, int (*)(void *), void *); 39 void intr_disestablish(void *); 40 const char *intr_typename(int); 41 void genppc_cpu_configure(void); 42 43 /* Interrupt priority `levels'. */ 44 #define IPL_NONE 0 /* nothing */ 45 #define IPL_SOFTCLOCK 1 /* timeouts */ 46 #define IPL_SOFTNET 2 /* protocol stacks */ 47 #define IPL_BIO 3 /* block I/O */ 48 #define IPL_NET 4 /* network */ 49 #define IPL_SOFTSERIAL 5 /* serial */ 50 #define IPL_AUDIO 6 /* audio */ 51 #define IPL_TTY 7 /* terminal */ 52 #define IPL_LPT IPL_TTY 53 #define IPL_VM 8 /* memory allocation */ 54 #define IPL_CLOCK 9 55 #define IPL_STATCLOCK 10 /* clock */ 56 #define IPL_SCHED 11 57 #define IPL_SERIAL 12 /* serial */ 58 #define IPL_LOCK 13 59 #define IPL_HIGH 14 /* everything */ 60 #define NIPL 15 61 62 /* Interrupt sharing types. */ 63 #define IST_NONE 0 /* none */ 64 #define IST_PULSE 1 /* pulsed */ 65 #define IST_EDGE 2 /* edge-triggered */ 66 #define IST_LEVEL 3 /* level-triggered */ 67 68 #ifndef _LOCORE 69 #include <powerpc/softintr.h> 70 71 /* 72 * Interrupt handler chains. intr_establish() inserts a handler into 73 * the list. The handler is called with its (single) argument. 74 */ 75 struct intrhand { 76 int (*ih_fun)(void *); 77 void *ih_arg; 78 struct intrhand *ih_next; 79 int ih_level; 80 int ih_irq; 81 }; 82 83 int splraise(int); 84 int spllower(int); 85 void splx(int); 86 void softintr(int); 87 88 extern int imask[]; 89 90 /* Soft interrupt masks. */ 91 #define SIR_CLOCK 28 92 #define SIR_NET 29 93 #define SIR_SERIAL 30 94 #define SPL_CLOCK 31 95 96 #define setsoftclock() softintr(SIR_CLOCK) 97 #define setsoftnet() softintr(SIR_NET) 98 #define setsoftserial() softintr(SIR_SERIAL) 99 100 #define spl0() spllower(0) 101 102 typedef int ipl_t; 103 typedef struct { 104 ipl_t _ipl; 105 } ipl_cookie_t; 106 107 static inline ipl_cookie_t 108 makeiplcookie(ipl_t ipl) 109 { 110 111 return (ipl_cookie_t){._ipl = ipl}; 112 } 113 114 static inline int 115 splraiseipl(ipl_cookie_t icookie) 116 { 117 118 return splraise(imask[icookie._ipl]); 119 } 120 121 #include <sys/spl.h> 122 123 #endif /* _LOCORE */ 124 125 #endif /* POWERPC_INTR_MACHDEP_H */ 126