File: [local] / sys / arch / sparc64 / dev / consinit.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:25 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)
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/* $OpenBSD: consinit.c,v 1.10 2005/04/26 15:16:20 miod Exp $ */
/* $NetBSD: consinit.c,v 1.9 2000/10/20 05:32:35 mrg Exp $ */
/*-
* Copyright (c) 1999 Eduardo E. Horvath
* 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. 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 "pcons.h"
#include "ukbd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/time.h>
#include <sys/syslog.h>
#include <machine/autoconf.h>
#include <machine/openfirm.h>
#include <machine/bsd_openprom.h>
#include <machine/conf.h>
#include <machine/cpu.h>
#include <machine/eeprom.h>
#include <machine/psl.h>
#include <machine/z8530var.h>
#include <machine/sparc64.h>
#include <dev/cons.h>
#include <sparc64/dev/cons.h>
#include <dev/usb/ukbdvar.h>
cons_decl(prom_);
int stdin = NULL, stdout = NULL;
/*
* The console is set to this one initially,
* which lets us use the PROM until consinit()
* is called to select a real console.
*/
struct consdev consdev_prom = {
prom_cnprobe,
prom_cninit,
prom_cngetc,
prom_cnputc,
prom_cnpollc,
NULL
};
/*
* The console table pointer is statically initialized
* to point to the PROM (output only) table, so that
* early calls to printf will work.
*/
struct consdev *cn_tab = &consdev_prom;
void
prom_cnprobe(struct consdev *cd)
{
#if NPCONS > 0
int maj;
for (maj = 0; maj < nchrdev; maj++)
if (cdevsw[maj].d_open == pconsopen)
break;
cd->cn_dev = makedev(maj, 0);
cd->cn_pri = CN_INTERNAL;
#endif
}
int
prom_cngetc(dev_t dev)
{
unsigned char ch = '\0';
int l;
#ifdef DDB
static int nplus = 0;
#endif
while ((l = OF_read(stdin, &ch, 1)) != 1)
/* void */;
#ifdef DDB
if (ch == '+') {
if (nplus++ > 3)
Debugger();
} else
nplus = 0;
#endif
if (ch == '\r')
ch = '\n';
if (ch == '\b')
ch = '\177';
return ch;
}
void
prom_cninit(struct consdev *cn)
{
if (!stdin) stdin = OF_stdin();
if (!stdout) stdout = OF_stdout();
}
/*
* PROM console output putchar.
*/
void
prom_cnputc(dev_t dev, int c)
{
int s;
char c0 = (c & 0x7f);
#if 0
if (!stdout) stdout = OF_stdout();
#endif
s = splhigh();
OF_write(stdout, &c0, 1);
splx(s);
}
void
prom_cnpollc(dev_t dev, int on)
{
if (on) {
/* Entering debugger. */
fb_unblank();
} else {
/* Resuming kernel. */
}
#if NPCONS > 0
pcons_cnpollc(dev, on);
#endif
}
/*****************************************************************/
#ifdef DEBUG
#define DBPRINT(x) prom_printf x
#else
#define DBPRINT(x)
#endif
/*
* This function replaces sys/dev/cninit.c
* Determine which device is the console using
* the PROM "input source" and "output sink".
*/
void
consinit()
{
register int chosen;
char buffer[128];
extern int stdinnode, fbnode;
char *consname = "unknown";
DBPRINT(("consinit()\r\n"));
if (cn_tab != &consdev_prom) return;
DBPRINT(("setting up stdin\r\n"));
chosen = OF_finddevice("/chosen");
OF_getprop(chosen, "stdin", &stdin, sizeof(stdin));
DBPRINT(("stdin instance = %x\r\n", stdin));
if ((stdinnode = OF_instance_to_package(stdin)) == 0) {
printf("WARNING: no PROM stdin\n");
}
#if NUKBD > 0
else {
if (OF_getprop(stdinnode, "compatible", buffer,
sizeof(buffer)) != -1 && strncmp("usb", buffer, 3) == 0)
ukbd_cnattach();
}
#endif
DBPRINT(("setting up stdout\r\n"));
OF_getprop(chosen, "stdout", &stdout, sizeof(stdout));
DBPRINT(("stdout instance = %x\r\n", stdout));
if ((fbnode = OF_instance_to_package(stdout)) == 0)
printf("WARNING: no PROM stdout\n");
DBPRINT(("stdout package = %x\r\n", fbnode));
if (stdinnode && (OF_getproplen(stdinnode,"keyboard") >= 0)) {
consname = "keyboard/display";
} else if (fbnode &&
(OF_instance_to_path(stdin, buffer, sizeof(buffer)) >= 0)) {
consname = buffer;
}
printf("console is %s\n", consname);
/* Initialize PROM console */
(*cn_tab->cn_probe)(cn_tab);
(*cn_tab->cn_init)(cn_tab);
}