1 /* $NetBSD: irqhandler.h,v 1.5 2008/04/27 18:58:47 matt Exp $ */ 2 3 /* 4 * Copyright (c) 1994-1996 Mark Brinicombe. 5 * Copyright (c) 1994 Brini. 6 * All rights reserved. 7 * 8 * This code is derived from software written for Brini by Mark Brinicombe 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 Mark Brinicombe 21 * for the NetBSD Project. 22 * 4. The name of the company nor the name of the author may be used to 23 * endorse or promote products derived from this software without specific 24 * prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 28 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 30 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 32 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * IRQ related stuff (defines + structures) 39 * 40 * Created : 30/09/94 41 */ 42 43 #ifndef _ARM32_IRQHANDLER_H_ 44 #define _ARM32_IRQHANDLER_H_ 45 46 #ifndef _LOCORE 47 #include <sys/types.h> 48 #include <sys/evcnt.h> 49 #endif /* _LOCORE */ 50 51 /* Define the IRQ bits */ 52 53 /* 54 * XXX this is really getting rather horrible. 55 * Shortly to be replaced with system specific interrupt tables and handling 56 */ 57 58 #ifdef OFWGENCFG 59 /* These are just made up for now! -JJK */ 60 #define IRQ_TIMER0 0 61 #endif 62 63 #ifdef SHARK 64 /* 65 * shark hardware requirements for IRQ's: 66 * IDE: 14 (hardwired) 67 * PCI: 5, 9, 10, 11, 15(mapped to UMIPCI inta, intb, intc, intd) 68 * UMIISA: 10, 11, 12 69 * SuperIO: 1, 3..12, 14, 15(all may be remapped. defaults as follows.) 70 * KBC: 1 71 * USI: 3 (UART with Slow Infrared support) 72 * UART: 4 73 * FLOPPY: 6 (not currently used on shark) 74 * PARALLEL: 7 75 * RTC: 8 (not used on shark: RTC in sequoia used) 76 * MOUSE: 12 77 * Sequoia: 8 (internal RTC hardwired to irq 8) 78 * Codec: 5, 7, 9, 10, 15 (irqe, connected to 15, has special status.) 79 * CS8900: 5, 10, 11, 12 (P.14 of datasheet sez only 1 used/time) 80 * FERR#: 13 (unconnected floating point error) 81 * 82 * total of 15 irqs: 83 * timer, ide, 2 umi = isa/pci, ethernet, 2 codec, kb, usi, uart, floppy, 84 * parallel, rtc, mouse, ferr (irq 13) 85 * 86 * eventually, need to read the OFW dev info tree, and allocate IRQs. 87 * hardcoded for now. 88 */ 89 #define IRQ_TIMER0 0x00 /* hardwired to 8254 counter 0 in sequoia */ 90 #define IRQ_KEYBOARD 0x01 91 #define IRQ_CASCADE 0x02 /* hardwired IRQ for second 8259 = IRQ_SLAVE */ 92 #define IRQ_USI 0x03 93 #define IRQ_UART 0x04 94 #define IRQ_ETHERNET 0x05 95 #define IRQ_FLOPPY 0x06 96 #define IRQ_PARALLEL 0x07 97 #endif 98 99 #if defined(SHARK) || defined(OFWGENCFG) 100 #define IRQ_RTC 0x08 /* hardwired to the sequoia RTC */ 101 #endif 102 #ifdef SHARK 103 #define IRQ_CODEC1 0x09 104 #define IRQ_UMI1 0x0A /* isa or pci */ 105 #define IRQ_UMI2 0x0B /* isa or pci */ 106 107 #define IRQ_MOUSE 0x0C 108 #define IRQ_FERR 0x0D /* FERR# pin on sequoia needs to be connected */ 109 #define IRQ_IDE 0x0E /* hardwired to the IDE connector */ 110 #define IRQ_CODEC2 0x0F /* special interrupt on codec */ 111 #endif /* SHARK */ 112 113 #define IRQ_VSYNC IRQ_FLYBACK /* Aliased */ 114 #define IRQ_NETSLOT IRQ_EXTENDED 115 116 #define IRQ_INSTRUCT -1 117 #define NIRQS 0x20 118 119 #include <machine/intr.h> 120 121 #ifndef _LOCORE 122 typedef struct irqhandler { 123 int (*ih_func)(void *arg); /* handler function */ 124 void *ih_arg; /* Argument to handler */ 125 int ih_level; /* Interrupt level */ 126 int ih_num; /* Interrupt number (for accounting) */ 127 u_int ih_flags; /* Interrupt flags */ 128 u_int ih_maskaddr; /* mask address for expansion cards */ 129 u_int ih_maskbits; /* interrupt bit for expansion cards */ 130 struct irqhandler *ih_next; /* next handler */ 131 struct evcnt ih_ev; /* evcnt structure */ 132 int (*ih_realfunc)(void *arg); /* XXX real handler function */ 133 void *ih_realarg; 134 } irqhandler_t; 135 136 #ifdef _KERNEL 137 extern u_int irqmasks[NIPL]; 138 extern irqhandler_t *irqhandlers[NIRQS]; 139 140 void irq_init(void); 141 int irq_claim(int, irqhandler_t *, const char *group, const char *name); 142 int irq_release(int, irqhandler_t *); 143 void *intr_claim(int irq, int level, int (*func)(void *), void *arg, 144 const char *group, const char *name); 145 int intr_release(void *ih); 146 void irq_setmasks(void); 147 void disable_irq(int); 148 void enable_irq(int); 149 #endif /* _KERNEL */ 150 #endif /* _LOCORE */ 151 152 #define IRQ_FLAG_ACTIVE 0x00000001 /* This is the active handler in list */ 153 154 #endif /* _ARM32_IRQHANDLER_H_ */ 155 156 /* End of irqhandler.h */ 157