sys/bus/isa/isa_common.h

   1 /*-
   2  * Copyright (c) 1999 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: src/sys/isa/isa_common.h,v 1.5 1999/09/07 08:42:47 dfr Exp $
  27  * $DragonFly: src/sys/bus/isa/isa_common.h,v 1.4 2005/05/24 20:58:48 dillon Exp $
  28  */
  29
  30 /*
  31  * Parts of the ISA bus implementation common to all architectures.
  32  *
  33  * Drivers must not depend on information in this file as it can change
  34  * without notice.
  35  */
  36
  37 MALLOC_DECLARE(M_ISADEV);
  38
  39 /*
  40  * PNP configurations are kept in a tailq.
  41  */
  42 TAILQ_HEAD(isa_config_list, isa_config_entry);
  43 struct isa_config_entry {
  44         TAILQ_ENTRY(isa_config_entry) ice_link;
  45         int                     ice_priority;
  46         struct isa_config       ice_config;
  47 };
  48
  49 /*
  50  * The structure used to attach devices to the isa bus.
  51  */
  52 struct isa_device {
  53         struct resource_list    id_resources;
  54         u_int32_t               id_vendorid; /* pnp vendor id */
  55         u_int32_t               id_serial; /* pnp serial */
  56         u_int32_t               id_logicalid; /* pnp logical device id */
  57         u_int32_t               id_compatid; /* pnp compat device id */
  58         struct isa_config_list  id_configs; /* pnp config alternatives */
  59         isa_config_cb           *id_config_cb; /* callback function */
  60         void                    *id_config_arg; /* callback argument */
  61 };
  62
  63 #define DEVTOISA(dev)   ((struct isa_device *) device_get_ivars(dev))
  64
  65 /*
  66  * These functions are architecture dependant.
  67  */
  68 extern void isa_init(void);
  69 extern struct resource *isa_alloc_resource(device_t bus, device_t child,
  70                                            int type, int *rid,
  71                                            u_long start, u_long end,
  72                                            u_long count, u_int flags);
  73 extern int isa_release_resource(device_t bus, device_t child,
  74                                 int type, int rid,
  75                                 struct resource *r);
  76 extern int isa_setup_intr(device_t bus, device_t child,
  77                           struct resource *r, int flags,
  78                           void (*ihand)(void *), void *arg,
  79                           void **cookiep, lwkt_serialize_t serializer);
  80 extern int isa_teardown_intr(device_t bus, device_t child,
  81                              struct resource *r, void *cookie);