isavar.h

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    1 /*-
    2  * Copyright (c) 1998 Doug Rabson
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 #define ISA_NPORT_IVARS 2
   30 #define ISA_NMEM_IVARS  2
   31 #define ISA_NIRQ_IVARS  2
   32 #define ISA_NDRQ_IVARS  2
   33 
   34 enum isa_device_ivars {
   35         ISA_IVAR_PORT,
   36         ISA_IVAR_PORT_0 = ISA_IVAR_PORT,
   37         ISA_IVAR_PORT_1,
   38         ISA_IVAR_PORTSIZE,
   39         ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE,
   40         ISA_IVAR_PORTSIZE_1,
   41         ISA_IVAR_MADDR,
   42         ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR,
   43         ISA_IVAR_MADDR_1,
   44         ISA_IVAR_MSIZE,
   45         ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE,
   46         ISA_IVAR_MSIZE_1,
   47         ISA_IVAR_FLAGS,
   48         ISA_IVAR_IRQ,
   49         ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ,
   50         ISA_IVAR_IRQ_1,
   51         ISA_IVAR_DRQ,
   52         ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ,
   53         ISA_IVAR_DRQ_1
   54 };
   55 
   56 extern int isa_irq_pending(void);
   57 extern int isa_irq_mask(void);
   58 
   59 /*
   60  * Simplified accessors for isa devices
   61  */
   62 #define ISA_ACCESSOR(A, B, T)                                           \
   63                                                                         \
   64 static __inline T isa_get_ ## A(device_t dev)                           \
   65 {                                                                       \
   66         u_long v;                                                       \
   67         BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v); \
   68         return (T) v;                                                   \
   69 }                                                                       \
   70                                                                         \
   71 static __inline void isa_set_ ## A(device_t dev, T t)                   \
   72 {                                                                       \
   73         u_long v = (u_long) t;                                          \
   74         BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v); \
   75 }
   76 
   77 ISA_ACCESSOR(port, PORT, int)
   78 ISA_ACCESSOR(portsize, PORTSIZE, int)
   79 ISA_ACCESSOR(flags, FLAGS, int)
   80 ISA_ACCESSOR(irq, IRQ, int)
   81

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FreeBSD/Linux Kernel Cross Reference sys/isa/isavar.h

FreeBSD/Linux Kernel Cross Reference
sys/isa/isavar.h