sys/arch/shark/include/irqhandler.h

   1 /*      $NetBSD$        */
   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 */