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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: db_interface.h,v 1.9 2006/07/12 05:55:22 deraadt Exp $	*/
/*	$NetBSD: db_interface.h,v 1.1 1996/02/05 01:57:03 christos Exp $	*/

/*
 * Copyright (c) 1995 Christos Zoulas.  All rights reserved.
 *
 * 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 Christos Zoulas.
 * 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.
 */
#ifndef _DDB_DB_INTERFACE_H_
#define _DDB_DB_INTERFACE_H_

/* arch/<arch>/<arch>/db_trace.c */
void db_stack_trace_print(db_expr_t, int, db_expr_t, char *,
    int (*)(const char *, ...));

/* arch/<arch>/<arch>/db_disasm.c */
db_addr_t db_disasm(db_addr_t, boolean_t);

/* kern/kern_proc.c */
void db_show_all_procs(db_expr_t, int, db_expr_t, char *);

/* kern/kern_timeout.c */
void db_show_callout(db_expr_t, int, db_expr_t, char *);

struct mount;
struct vnode;

/* kern/vfs_subr.c */
void vfs_buf_print(struct buf *, int, int (*)(const char *, ...));
void vfs_vnode_print(struct vnode *, int, int (*)(const char *, ...));
void vfs_mount_print(struct mount *, int, int (*)(const char *, ...));

/* kern/subr_pool.c */
void db_show_all_pools(db_expr_t, int, db_expr_t, char *);

/* ufs/ffs/ffs_softdep.c */
struct worklist;
void worklist_print(struct worklist *, int, int (*)(const char *, ...));
void softdep_print(struct buf *, int, int (*)(const char *, ...));

/* arch/<arch>/<arch>/db_interface.c */
void db_machine_init(void);

#endif /* _DDB_DB_INTERFACE_H_ */