98 lines
4.1 KiB
C
98 lines
4.1 KiB
C
/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 2015 Serge Vakulenko
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* This structure is used to encapsulate the routines for a device driver.
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* This allows an "object oriented" approach so a controller device driver
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* can support multiple attached devices or a device can be attached to
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* different types of controllers.
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*/
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struct driver {
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const char *d_name; /* driver name for vmstat and iostat */
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int (*d_init)(); /* routine to probe & initialize device */
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};
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/*
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* This structure describes controllers directly connected to CPU
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* and is partially initialized in "ioconf.c" by the 'config' program.
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*/
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struct conf_ctlr {
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struct driver *ctlr_driver; /* controller driver routines */
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int ctlr_unit; /* controller number */
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char *ctlr_addr; /* address of controller */
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int ctlr_pri; /* interrupt priority */
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int ctlr_flags; /* flags */
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int ctlr_alive; /* true if init routine succeeded */
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};
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/*
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* This structure describes devices connected to an interface
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* and is partially initialized in "ioconf.c" by the 'config' program.
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*/
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struct conf_device {
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struct driver *dev_driver; /* device driver routines */
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struct driver *dev_cdriver; /* interface driver routines */
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int dev_unit; /* device unit number */
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int dev_ctlr; /* device interface number */
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int dev_drive; /* device address number */
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int dev_flags; /* flags */
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/* assignment of signals to physical pins */
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#define KCONF_MAXPINS 16
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char dev_pins[KCONF_MAXPINS];
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int dev_alive; /* true if init routine succeeded */
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};
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/*
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* This structure describes optional software services.
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*/
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struct conf_service {
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void (*svc_attach)(); /* routine to initialize service */
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};
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/* Define special unit types used by the config program */
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#define QUES -1 /* -1 means '?' */
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#define UNKNOWN -2 /* -2 means not set yet */
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#ifdef KERNEL
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extern struct conf_ctlr conf_ctlr_init[];
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extern struct conf_device conf_device_init[];
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extern struct conf_service conf_service_init[];
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#endif
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