d0c66446cc
Convert the remaining sysctl stuff to the new way of doing things. the devconf stuff is the reason for the large number of files. Cleaned up some compiler warnings while I were there.
175 lines
4.3 KiB
C
175 lines
4.3 KiB
C
/*
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* Copyright (c) 1994, Garrett A. Wollman. All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $Id: kern_devconf.c,v 1.10 1995/05/30 08:05:23 rgrimes Exp $
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*/
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/*
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* kern_devconf.c - manage device configuration table
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*
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* Garrett A. Wollman, October 1994.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <vm/vm.h> /* needed for sysctl.h */
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#include <sys/sysctl.h>
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#include <sys/devconf.h>
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struct kern_devconf *dc_list = 0;
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static unsigned dc_lastnum = 0;
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int
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dev_attach(struct kern_devconf *kdc)
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{
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int s = splclock();
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kdc->kdc_next = dc_list;
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if(kdc->kdc_next)
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kdc->kdc_next->kdc_rlink = &kdc->kdc_next;
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kdc->kdc_rlink = &dc_list;
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kdc->kdc_number = ++dc_lastnum;
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dc_list = kdc;
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splx(s);
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return 0;
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}
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int
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dev_detach(struct kern_devconf *kdc)
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{
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int s;
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s = splclock();
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*kdc->kdc_rlink = kdc->kdc_next;
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if(kdc->kdc_next)
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kdc->kdc_next->kdc_rlink = kdc->kdc_rlink;
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splx(s);
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return 0;
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}
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/*
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* NB: the device must do a dev_detach inside its shutdown routine, if it
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* succeeds. If no routine is specified, we assume no special treatment is
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* required.
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*/
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int
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dev_shutdownall(int force)
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{
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int rv = 0;
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struct kern_devconf *kdc = dc_list;
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while(kdc) {
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if(!kdc->kdc_shutdown) {
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dev_detach(kdc);
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kdc = dc_list;
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continue;
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}
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if(kdc->kdc_shutdown(kdc, force)) {
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rv++;
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kdc = kdc->kdc_next;
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} else {
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kdc = dc_list;
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}
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}
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return rv;
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}
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static void
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make_devconf(struct kern_devconf *kdc, struct devconf *dc)
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{
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strncpy(dc->dc_name, kdc->kdc_name, sizeof dc->dc_name);
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dc->dc_name[(sizeof dc->dc_name) - 1] = '\0';
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dc->dc_unit = kdc->kdc_unit;
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dc->dc_number = kdc->kdc_number;
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if(kdc->kdc_parent) {
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strncpy(dc->dc_pname, kdc->kdc_parent->kdc_name, sizeof dc->dc_pname);
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dc->dc_pname[(sizeof dc->dc_pname) - 1] = '\0';
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dc->dc_punit = kdc->kdc_parent->kdc_unit;
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dc->dc_pnumber = kdc->kdc_parent->kdc_number;
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} else {
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bzero(dc->dc_pname, sizeof dc->dc_pname);
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dc->dc_punit = -1;
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dc->dc_pnumber = -1;
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}
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MACHDEP_COPYDEV(dc, kdc);
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dc->dc_state = kdc->kdc_state;
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dc->dc_class = kdc->kdc_class;
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dc->dc_datalen = kdc->kdc_datalen;
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strncpy(dc->dc_descr, kdc->kdc_description, sizeof dc->dc_descr);
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dc->dc_descr[(sizeof dc->dc_descr) - 1] = '\0';
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}
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static int
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sysctl_hw_devconfig SYSCTL_HANDLER_ARGS
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{
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int *name = (int *) arg1;
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u_int namelen = arg2;
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struct kern_devconf *kdc;
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struct devconf dc;
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int rv;
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/* all sysctl names at this level are terminal */
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if (namelen != 1)
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return ENOTDIR;
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if (name[0] == DEVCONF_NUMBER)
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return sysctl_handle_int(oidp, 0, dc_lastnum, req);
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for(kdc = dc_list; kdc; kdc = kdc->kdc_next) {
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if(kdc->kdc_number == name[0])
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break;
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}
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if(!kdc)
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return ENXIO;
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make_devconf(kdc, &dc);
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rv = SYSCTL_OUT(req, &dc, (sizeof dc) -1);
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if(rv)
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return rv;
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if(kdc->kdc_externalize)
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rv = kdc->kdc_externalize(kdc, req);
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if(rv)
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return rv;
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if(!req->newptr)
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return 0;
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if(!kdc->kdc_internalize)
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return EOPNOTSUPP;
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rv = kdc->kdc_internalize(kdc, req);
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return rv;
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}
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SYSCTL_NODE(_hw, HW_DEVCONF, devconfig, CTLFLAG_RW, sysctl_hw_devconfig,"");
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