picvar.h revision 1.2
1 1.2 matt /* $NetBSD: picvar.h,v 1.2 2008/04/27 18:58:45 matt Exp $ */ 2 1.2 matt /*- 3 1.2 matt * Copyright (c) 2008 The NetBSD Foundation, Inc. 4 1.2 matt * All rights reserved. 5 1.2 matt * 6 1.2 matt * This code is derived from software contributed to The NetBSD Foundation 7 1.2 matt * by Matt Thomas. 8 1.2 matt * 9 1.2 matt * Redistribution and use in source and binary forms, with or without 10 1.2 matt * modification, are permitted provided that the following conditions 11 1.2 matt * are met: 12 1.2 matt * 1. Redistributions of source code must retain the above copyright 13 1.2 matt * notice, this list of conditions and the following disclaimer. 14 1.2 matt * 2. Redistributions in binary form must reproduce the above copyright 15 1.2 matt * notice, this list of conditions and the following disclaimer in the 16 1.2 matt * documentation and/or other materials provided with the distribution. 17 1.2 matt * 3. All advertising materials mentioning features or use of this software 18 1.2 matt * must display the following acknowledgement: 19 1.2 matt * This product includes software developed by the NetBSD 20 1.2 matt * Foundation, Inc. and its contributors. 21 1.2 matt * 4. Neither the name of The NetBSD Foundation nor the names of its 22 1.2 matt * contributors may be used to endorse or promote products derived 23 1.2 matt * from this software without specific prior written permission. 24 1.2 matt * 25 1.2 matt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 1.2 matt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.2 matt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.2 matt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 1.2 matt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.2 matt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.2 matt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.2 matt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.2 matt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.2 matt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.2 matt * POSSIBILITY OF SUCH DAMAGE. 36 1.2 matt */ 37 1.2 matt #ifndef _ARM_PIC_PICVAR_H_ 38 1.2 matt #define _ARM_PIC_PICVAR_H_ 39 1.2 matt 40 1.2 matt int _splraise(int); 41 1.2 matt int _spllower(int); 42 1.2 matt void splx(int); 43 1.2 matt const char * 44 1.2 matt intr_typename(int); 45 1.2 matt 46 1.2 matt struct pic_softc; 47 1.2 matt struct intrsource; 48 1.2 matt 49 1.2 matt int pic_handle_intr(void *); 50 1.2 matt void pic_mark_pending(struct pic_softc *pic, int irq); 51 1.2 matt void pic_mark_pending_source(struct pic_softc *pic, struct intrsource *is); 52 1.2 matt uint32_t pic_mark_pending_sources(struct pic_softc *pic, size_t irq_base, 53 1.2 matt uint32_t pending); 54 1.2 matt void *pic_establish_intr(struct pic_softc *pic, int irq, int ipl, int type, 55 1.2 matt int (*func)(void *), void *arg); 56 1.2 matt int pic_alloc_irq(struct pic_softc *pic); 57 1.2 matt void pic_disestablish_source(struct intrsource *is); 58 1.2 matt void pic_do_pending_ints(register_t psw, int newipl, void *frame); 59 1.2 matt void pic_dispatch(struct intrsource *is, void *frame); 60 1.2 matt 61 1.2 matt void *intr_establish(int irq, int ipl, int type, int (*func)(void *), 62 1.2 matt void *arg); 63 1.2 matt void intr_disestablish(void *); 64 1.2 matt 65 1.2 matt #ifdef _INTR_PRIVATE 66 1.2 matt 67 1.2 matt #ifndef PIC_MAXPICS 68 1.2 matt #define PIC_MAXPICS 32 69 1.2 matt #endif 70 1.2 matt #ifndef PIC_MAXSOURCES 71 1.2 matt #define PIC_MAXSOURCES 64 72 1.2 matt #endif 73 1.2 matt #ifndef PIC_MAXMAXSOURCES 74 1.2 matt #define PIC_MAXMAXSOURCES 128 75 1.2 matt #endif 76 1.2 matt 77 1.2 matt struct intrsource { 78 1.2 matt int (*is_func)(void *); 79 1.2 matt void *is_arg; 80 1.2 matt struct pic_softc *is_pic; /* owning PIC */ 81 1.2 matt uint8_t is_type; /* IST_xxx */ 82 1.2 matt uint8_t is_ipl; /* IPL_xxx */ 83 1.2 matt uint8_t is_irq; /* local to pic */ 84 1.2 matt uint8_t is_iplidx; 85 1.2 matt struct evcnt is_ev; 86 1.2 matt char is_source[16]; 87 1.2 matt }; 88 1.2 matt 89 1.2 matt struct pic_softc { 90 1.2 matt const struct pic_ops *pic_ops; 91 1.2 matt struct intrsource **pic_sources; 92 1.2 matt uint32_t pic_pending_irqs[(PIC_MAXSOURCES + 31) / 32]; 93 1.2 matt uint32_t pic_blocked_irqs[(PIC_MAXSOURCES + 31) / 32]; 94 1.2 matt uint32_t pic_pending_ipls; 95 1.2 matt size_t pic_maxsources; 96 1.2 matt uint8_t pic_id; 97 1.2 matt int16_t pic_irqbase; 98 1.2 matt char pic_name[14]; 99 1.2 matt }; 100 1.2 matt 101 1.2 matt struct pic_ops { 102 1.2 matt void (*pic_unblock_irqs)(struct pic_softc *, size_t, uint32_t); 103 1.2 matt void (*pic_block_irqs)(struct pic_softc *, size_t, uint32_t); 104 1.2 matt int (*pic_find_pending_irqs)(struct pic_softc *); 105 1.2 matt 106 1.2 matt void (*pic_establish_irq)(struct pic_softc *, struct intrsource *); 107 1.2 matt void (*pic_source_name)(struct pic_softc *, int, char *, size_t); 108 1.2 matt }; 109 1.2 matt 110 1.2 matt 111 1.2 matt void pic_add(struct pic_softc *, int); 112 1.2 matt void pic_do_pending_int(void); 113 1.2 matt 114 1.2 matt extern struct pic_softc * pic_list[PIC_MAXPICS]; 115 1.2 matt #endif /* _INTR_PRIVATE */ 116 1.2 matt 117 1.2 matt #endif /* _ARM_PIC_PICVAR_H_ */ 118
Indexes created Sun Sep 28 12:09:53 GMT 2025