File: [local] / sys / stand / boot / bootarg.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:16:08 2008 UTC (16 years, 2 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
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)
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/* $OpenBSD: bootarg.c,v 1.10 2003/08/11 06:23:07 deraadt Exp $ */
/*
* Copyright (c) 1997,1998 Michael Shalayeff
* 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.
*
* 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 REGENTS OR CONTRIBUTORS 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 <lib/libsa/stand.h>
#include <stand/boot/bootarg.h>
bootarg_t *bootarg_list;
void
addbootarg(int t, size_t l, void *p)
{
bootarg_t *q = alloc(sizeof(*q) + l - sizeof(q->ba_arg));
q->ba_type = t;
q->ba_size = sizeof(*q) + l - sizeof(q->ba_arg);
bcopy(p, q->ba_arg, l);
q->ba_next = bootarg_list;
bootarg_list = q;
}
void
makebootargs(caddr_t v, size_t *lenp)
{
bootarg_t *p;
u_char *q;
size_t l;
/* get total size */
l = sizeof(*p);
for (p = bootarg_list; p != NULL; p = p->ba_next)
l += p->ba_size;
if (*lenp < l) {
#ifdef DEBUG
printf("makebootargs: too many args\n");
#endif
l = *lenp;
}
*lenp = l;
/* copy them out */
for (p = bootarg_list, q = v;
p != NULL && ((q + p->ba_size) - (u_char *)v) < l;
q += p->ba_size, p = p->ba_next) {
#ifdef DEBUG
printf("%d,%d ", p->ba_type, p->ba_size);
#endif
bcopy(p, q, p->ba_size);
}
p = (bootarg_t *)q;
p->ba_type = BOOTARG_END;
}