oskit/oskit-20020317/startup/start_devices.c

81 lines
2.3 KiB
C
Executable File

/*
* Copyright (c) 1997-2000 University of Utah and the Flux Group.
* All rights reserved.
*
* This file is part of the Flux OSKit. The OSKit is free software, also known
* as "open source;" you can redistribute it and/or modify it under the terms
* of the GNU General Public License (GPL), version 2, as published by the Free
* Software Foundation (FSF). To explore alternate licensing terms, contact
* the University of Utah at csl-dist@cs.utah.edu or +1-801-585-3271.
*
* The OSKit is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GPL for more details. You should have
* received a copy of the GPL along with the OSKit; see the file COPYING. If
* not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.
*/
/*
* Convenience function to initialize/probe device drivers,
* using link-time dependencies to select sets to initialize.
*/
#include <oskit/startup.h>
#include <oskit/dev/dev.h>
#include <oskit/c/stdio.h>
#include <oskit/clientos.h>
#include <oskit/dev/linux.h>
#include <oskit/dev/osenv.h>
#include <oskit/dev/osenv_intr.h>
#include <oskit/dev/osenv_sleep.h>
#ifdef DEBUG
static int verbose = 1;
#else
static int verbose = 0;
#endif
/*
* These are "common" (uninitialized) definitions so that other files
* that get linked in containing initialized definitions will override
* them. That way, if the program calls start_disk (because it uses the disk),
* then start_disk.c's definition of _init_devices_blk will make start_devices
* start the block (disk) device drivers. Likewise, start_network.c defines
* _init_devices_net so the network drivers will be initialized if the
* program uses the network.
*/
void (*_init_devices_blk)();
void (*_init_devices_net)();
void
start_devices(void)
{
oskit_osenv_t *osenv;
static int run;
if (run)
return;
run = 1;
if (verbose)
printf("Initializing device drivers...\n");
osenv = start_osenv();
oskit_dev_init(osenv);
oskit_linux_init_osenv(osenv);
if (_init_devices_blk)
(*_init_devices_blk)();
if (_init_devices_net)
(*_init_devices_net)();
if (verbose)
oskit_dump_drivers();
if (verbose)
printf("Probing devices...\n");
oskit_dev_probe();
if (verbose)
oskit_dump_devices();
}