NetBSD-5.0.2/sys/arch/atari/atari/autoconf.c
/* $NetBSD: autoconf.c,v 1.54 2007/12/03 15:33:21 ad Exp $ */
/*
* Copyright (c) 1995 Leo Weppelman
* Copyright (c) 1994 Christian E. Hopps
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christian E. Hopps.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.54 2007/12/03 15:33:21 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/reboot.h>
#include <sys/conf.h>
#include <sys/buf.h>
#include <sys/device.h>
#include <sys/disklabel.h>
#include <sys/disk.h>
#include <machine/disklabel.h>
#include <machine/cpu.h>
#include <atari/atari/device.h>
static void findroot __P((void));
void mbattach __P((struct device *, struct device *, void *));
int mbprint __P((void *, const char *));
int mbmatch __P((struct device *, struct cfdata *, void *));
int atari_realconfig;
#include <sys/kernel.h>
/*
* called at boot time, configure all devices on system
*/
void
cpu_configure()
{
extern int atari_realconfig;
atari_realconfig = 1;
init_sicallback();
if (config_rootfound("mainbus", __UNCONST("mainbus")) == NULL)
panic("no mainbus found");
}
void
cpu_rootconf()
{
findroot();
setroot(booted_device, booted_partition);
}
/*ARGSUSED*/
int
simple_devprint(auxp, pnp)
void *auxp;
const char *pnp;
{
return(QUIET);
}
/*
* use config_search_ia to find appropriate device, then call that device
* directly with NULL device variable storage. A device can then
* always tell the difference between the real and console init
* by checking for NULL.
*/
int
atari_config_found(pcfp, pdp, auxp, pfn)
struct cfdata *pcfp;
struct device *pdp;
void *auxp;
cfprint_t pfn;
{
struct device temp;
struct cfdata *cf;
const struct cfattach *ca;
extern int atari_realconfig;
if (atari_realconfig)
return(config_found(pdp, auxp, pfn) != NULL);
memset(&temp, 0, sizeof(temp));
if (pdp == NULL)
pdp = &temp;
pdp->dv_cfdata = pcfp;
pdp->dv_cfdriver = config_cfdriver_lookup(pcfp->cf_name);
pdp->dv_unit = pcfp->cf_unit;
if ((cf = config_search_ia(NULL, pdp, NULL, auxp)) != NULL) {
ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname);
if (ca != NULL) {
(*ca->ca_attach)(pdp, NULL, auxp);
pdp->dv_cfdata = NULL;
return(1);
}
}
pdp->dv_cfdata = NULL;
return(0);
}
/*
* this function needs to get enough configured to do a console
* basically this means start attaching the grfxx's that support
* the console. Kinda hacky but it works.
*/
void
config_console()
{
struct cfdata *cf;
config_init();
/*
* we need mainbus' cfdata.
*/
cf = config_rootsearch(NULL, "mainbus", __UNCONST("mainbus"));
if (cf == NULL)
panic("no mainbus");
/*
* Note: The order of the 'atari_config_found()' calls is
* important! On the Hades, the 'pci-side' of the config does
* some setup for the 'grf-side'. This make it possible to use
* a PCI card for both wscons and grfabs.
*/
atari_config_found(cf, NULL, __UNCONST("pcib") , NULL);
atari_config_found(cf, NULL, __UNCONST("isab") , NULL);
atari_config_found(cf, NULL, __UNCONST("grfbus"), NULL);
}
/*
* The system will assign the "booted device" indicator (and thus
* rootdev if rootspec is wildcarded) to the first partition 'a'
* in preference of boot.
*/
#include <sys/fcntl.h> /* XXXX and all that uses it */
#include <sys/proc.h> /* XXXX and all that uses it */
#include "fd.h"
#include "sd.h"
#include "cd.h"
#include "wd.h"
#if NWD > 0
extern struct cfdriver wd_cd;
#endif
#if NSD > 0
extern struct cfdriver sd_cd;
#endif
#if NCD > 0
extern struct cfdriver cd_cd;
#endif
#if NFD > 0
extern struct cfdriver fd_cd;
#endif
struct cfdriver *genericconf[] = {
#if NWD > 0
&wd_cd,
#endif
#if NSD > 0
&sd_cd,
#endif
#if NCD > 0
&cd_cd,
#endif
#if NFD > 0
&fd_cd,
#endif
NULL,
};
void
findroot(void)
{
struct disk *dkp;
struct partition *pp;
struct device **devs;
const struct bdevsw *bdev;
int i, maj, unit;
if (boothowto & RB_ASKNAME)
return; /* Don't bother looking */
for (i = 0; genericconf[i] != NULL; i++) {
for (unit = 0; unit < genericconf[i]->cd_ndevs; unit++) {
if (genericconf[i]->cd_devs[unit] == NULL)
continue;
/*
* Find the disk structure corresponding to the
* current device.
*/
devs = (struct device **)genericconf[i]->cd_devs;
if ((dkp = disk_find(devs[unit]->dv_xname)) == NULL)
continue;
if (dkp->dk_driver == NULL ||
dkp->dk_driver->d_strategy == NULL)
continue;
maj = devsw_name2blk(genericconf[i]->cd_name, NULL, 0);
if (maj == -1)
continue;
bdev = bdevsw_lookup(makedev(maj, 0));
#ifdef DIAGNOSTIC
if (bdev == NULL)
panic("findroot: impossible");
#endif
if (bdev == NULL ||
bdev->d_strategy != dkp->dk_driver->d_strategy)
continue;
/* Open disk; forces read of disklabel. */
if ((*bdev->d_open)(MAKEDISKDEV(maj,
unit, 0), FREAD|FNONBLOCK, 0, &lwp0))
continue;
(void)(*bdev->d_close)(MAKEDISKDEV(maj,
unit, 0), FREAD|FNONBLOCK, 0, &lwp0);
pp = &dkp->dk_label->d_partitions[booted_partition];
if (pp->p_size != 0 && pp->p_fstype == FS_BSDFFS) {
booted_device = devs[unit];
return;
}
}
}
}
/*
* mainbus driver
*/
CFATTACH_DECL(mainbus, sizeof(struct device),
mbmatch, mbattach, NULL, NULL);
static int mb_attached;
int
mbmatch(pdp, cfp, auxp)
struct device *pdp;
struct cfdata *cfp;
void *auxp;
{
if (mb_attached)
return(0);
/*
* We are always here
*/
return(1);
}
/*
* "find" all the things that should be there.
*/
void
mbattach(pdp, dp, auxp)
struct device *pdp, *dp;
void *auxp;
{
mb_attached = 1;
printf ("\n");
config_found(dp, __UNCONST("clock") , simple_devprint);
config_found(dp, __UNCONST("grfbus") , simple_devprint);
config_found(dp, __UNCONST("kbd") , simple_devprint);
config_found(dp, __UNCONST("fdc") , simple_devprint);
config_found(dp, __UNCONST("ser") , simple_devprint);
config_found(dp, __UNCONST("zs") , simple_devprint);
config_found(dp, __UNCONST("ncrscsi") , simple_devprint);
config_found(dp, __UNCONST("nvr") , simple_devprint);
config_found(dp, __UNCONST("lpt") , simple_devprint);
config_found(dp, __UNCONST("wdc") , simple_devprint);
config_found(dp, __UNCONST("isab") , simple_devprint);
config_found(dp, __UNCONST("pcib") , simple_devprint);
config_found(dp, __UNCONST("avmebus") , simple_devprint);
}
int
mbprint(auxp, pnp)
void *auxp;
const char *pnp;
{
if (pnp)
aprint_normal("%s at %s", (char *)auxp, pnp);
return(UNCONF);
}