File: [local] / sys / arch / i386 / stand / libsa / dev_i386.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:06:03 2008 UTC (16 years, 4 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)
|
/* $OpenBSD: dev_i386.c,v 1.30 2007/06/27 20:29:37 mk Exp $ */
/*
* Copyright (c) 1996-1999 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 AUTHOR OR HIS RELATIVES 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 MIND, 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 "libsa.h"
#include "biosdev.h"
#include <sys/param.h>
#include <dev/cons.h>
extern int debug;
/* XXX use slot for 'rd' for 'hd' pseudo-device */
const char bdevs[][4] = {
"wd", "", "fd", "", "sd", "st", "cd", "mcd",
"", "", "", "", "", "", "", "scd", "", "hd", ""
};
const int nbdevs = NENTS(bdevs);
const char cdevs[][4] = {
"cn", "", "", "", "", "", "", "",
"com", "", "", "", "pc"
};
const int ncdevs = NENTS(cdevs);
/* pass dev_t to the open routines */
int
devopen(struct open_file *f, const char *fname, char **file)
{
struct devsw *dp = devsw;
register int i, rc = 1;
*file = (char *)fname;
#ifdef DEBUG
if (debug)
printf("devopen:");
#endif
for (i = 0; i < ndevs && rc != 0; dp++, i++) {
#ifdef DEBUG
if (debug)
printf(" %s: ", dp->dv_name);
#endif
if ((rc = (*dp->dv_open)(f, file)) == 0) {
f->f_dev = dp;
return 0;
}
#ifdef DEBUG
else if (debug)
printf("%d", rc);
#endif
}
#ifdef DEBUG
if (debug)
putchar('\n');
#endif
if ((f->f_flags & F_NODEV) == 0)
f->f_dev = dp;
return rc;
}
void
devboot(dev_t bootdev, char *p)
{
#ifdef _TEST
*p++ = '/';
*p++ = 'd';
*p++ = 'e';
*p++ = 'v';
*p++ = '/';
*p++ = 'r';
#endif
if (bootdev & 0x100) {
*p++ = 'c';
*p++ = 'd';
*p++ = '0';
} else {
if (bootdev & 0x80)
*p++ = 'h';
else
*p++ = 'f';
*p++ = 'd';
*p++ = '0' + (bootdev & 0x7f);
}
*p++ = 'a';
*p = '\0';
}
int pch_pos = 0;
void
putchar(int c)
{
switch (c) {
case '\177': /* DEL erases */
cnputc('\b');
cnputc(' ');
case '\b':
cnputc('\b');
if (pch_pos)
pch_pos--;
break;
case '\t':
do
cnputc(' ');
while (++pch_pos % 8);
break;
case '\n':
case '\r':
cnputc(c);
pch_pos=0;
break;
default:
cnputc(c);
pch_pos++;
break;
}
}
int
getchar(void)
{
register int c = cngetc();
if (c == '\r')
c = '\n';
if ((c < ' ' && c != '\n') || c == '\177')
return c;
putchar(c);
return c;
}
char ttyname_buf[8];
char *
ttyname(int fd)
{
snprintf(ttyname_buf, sizeof ttyname_buf, "%s%d",
cdevs[major(cn_tab->cn_dev)], minor(cn_tab->cn_dev));
return ttyname_buf;
}
dev_t
ttydev(char *name)
{
int i, unit = -1;
char *no = name + strlen(name) - 1;
while (no >= name && *no >= '0' && *no <= '9')
unit = (unit < 0 ? 0 : (unit * 10)) + *no-- - '0';
if (no < name || unit < 0)
return NODEV;
for (i = 0; i < ncdevs; i++)
if (strncmp(name, cdevs[i], no - name + 1) == 0)
return (makedev(i, unit));
return NODEV;
}
int
cnspeed(dev_t dev, int sp)
{
if (major(dev) == 8) /* comN */
return (comspeed(dev, sp));
/* pc0 and anything else */
return 9600;
}