intr.h revision 1.26
1 /* $NetBSD: intr.h,v 1.26 2006/06/29 17:16:59 garbled Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 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 _PREP_INTR_H_ 40 #define _PREP_INTR_H_ 41 42 /* Interrupt priority `levels'. */ 43 #define IPL_NONE 9 /* nothing */ 44 #define IPL_SOFTCLOCK 8 /* software clock interrupt */ 45 #define IPL_SOFTNET 7 /* software network interrupt */ 46 #define IPL_BIO 6 /* block I/O */ 47 #define IPL_NET 5 /* network */ 48 #define IPL_SOFTSERIAL 4 /* software serial interrupt */ 49 #define IPL_TTY 3 /* terminal */ 50 #define IPL_VM 3 /* memory allocation */ 51 #define IPL_AUDIO 2 /* audio */ 52 #define IPL_CLOCK 1 /* clock */ 53 #define IPL_HIGH 1 /* everything */ 54 #define IPL_SERIAL 0 /* serial */ 55 #define NIPL 10 56 57 /* Interrupt sharing types. */ 58 #define IST_NONE 0 /* none */ 59 #define IST_PULSE 1 /* pulsed */ 60 #define IST_EDGE 2 /* edge-triggered */ 61 #define IST_LEVEL 3 /* level-triggered */ 62 63 #ifndef _LOCORE 64 #include <powerpc/softintr.h> 65 #include <machine/cpu.h> 66 67 /* 68 * Interrupt handler chains. intr_establish() inserts a handler into 69 * the list. The handler is called with its (single) argument. 70 */ 71 struct intrhand { 72 int (*ih_fun)(void *); 73 void *ih_arg; 74 u_long ih_count; 75 struct intrhand *ih_next; 76 int ih_level; 77 int ih_irq; 78 }; 79 80 #include <sys/device.h> 81 struct intrsource { 82 int is_type; 83 int is_level; 84 int is_hwirq; 85 int is_mask; 86 struct intrhand *is_hand; 87 struct evcnt is_ev; 88 char is_source[16]; 89 }; 90 91 int splraise(int); 92 int spllower(int); 93 void softintr(int); 94 95 void do_pending_int(void); 96 97 void init_intr(void); 98 void init_intr_ivr(void); 99 void init_intr_openpic(void); 100 void openpic_init(unsigned char *); 101 102 void enable_intr(void); 103 void disable_intr(void); 104 105 void *intr_establish(int, int, int, int (*)(void *), void *); 106 void intr_disestablish(void *); 107 108 void softnet(int); 109 void softserial(void); 110 int isa_intr(void); 111 void isa_intr_mask(int); 112 void isa_intr_clr(int); 113 void isa_setirqstat(int, int, int); 114 115 extern int imen; 116 extern int imask[]; 117 extern struct intrhand *intrhand[]; 118 extern vaddr_t prep_intr_reg; 119 120 #define ICU_LEN 32 121 extern struct intrsource intrsources[ICU_LEN]; 122 123 #define IRQ_SLAVE 2 124 #define LEGAL_IRQ(x) ((x) >= 0 && (x) < ICU_LEN && (x) != IRQ_SLAVE) 125 #define I8259_INTR_NUM 16 126 #define OPENPIC_INTR_NUM ((ICU_LEN)-(I8259_INTR_NUM)) 127 #define CLKF_BASEPRI(frame) ((frame)->pri == 0) 128 129 #define PREP_INTR_REG 0xbffff000 130 #define INTR_VECTOR_REG 0xff0 131 132 #define SINT_CLOCK 0x20000000 133 #define SINT_NET 0x40000000 134 #define SINT_SERIAL 0x80000000 135 #define SPL_CLOCK 0x00000001 136 #define SINT_MASK (SINT_CLOCK|SINT_NET|SINT_SERIAL) 137 138 #define CNT_SINT_NET 29 139 #define CNT_SINT_CLOCK 30 140 #define CNT_SINT_SERIAL 31 141 #define CNT_CLOCK 0 142 143 #define splbio() splraise(imask[IPL_BIO]) 144 #define splnet() splraise(imask[IPL_NET]) 145 #define spltty() splraise(imask[IPL_TTY]) 146 #define splclock() splraise(imask[IPL_CLOCK]) 147 #define splvm() splraise(imask[IPL_VM]) 148 #define splaudio() splraise(imask[IPL_AUDIO]) 149 #define splserial() splraise(imask[IPL_SERIAL]) 150 #define splstatclock() splclock() 151 #define spllowersoftclock() spllower(imask[IPL_SOFTCLOCK]) 152 #define splsoftclock() splraise(imask[IPL_SOFTCLOCK]) 153 #define splsoftnet() splraise(imask[IPL_SOFTNET]) 154 #define splsoftserial() splraise(imask[IPL_SOFTSERIAL]) 155 156 #define spllpt() spltty() 157 158 #define setsoftclock() softintr(SINT_CLOCK); 159 #define setsoftnet() softintr(SINT_NET); 160 #define setsoftserial() softintr(SINT_SERIAL); 161 162 #define splhigh() splraise(imask[IPL_HIGH]) 163 #define splsched() splhigh() 164 #define spllock() splhigh() 165 #define splx(x) spllower(x) 166 #define spl0() spllower(0) 167 168 #endif /* !_LOCORE */ 169 170 #endif /* !_PREP_INTR_H_ */ 171
Indexes created Tue Sep 23 07:09:52 GMT 2025