File: [local] / sys / arch / mvme68k / stand / netboot / dev_net.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:38 2008 UTC (16 years, 6 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: dev_net.c,v 1.8 2003/08/20 00:26:00 deraadt Exp $ */
/*
* Copyright (c) 1995 Gordon W. Ross
* 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.
* 4. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Gordon W. Ross
*
* 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.
*/
/*
* This module implements a "raw device" interface suitable for
* use by the stand-alone I/O library NFS code. This interface
* does not support any "block" access, and exists only for the
* purpose of initializing the network interface, getting boot
* parameters, and performing the NFS mount.
*
* At open time, this does:
*
* find interface - netif_open()
* RARP for IP address - rarp_getipaddress()
* RPC/bootparams - callrpc(d, RPC_BOOTPARAMS, ...)
* RPC/mountd - nfs_mount(sock, ip, path)
*
* the root file handle from mountd is saved in a global
* for use by the NFS open code (NFS/lookup).
*/
#include <sys/param.h>
#include <sys/socket.h>
#include <net/if.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <netinet/in_systm.h>
#include <machine/prom.h>
#include "stand.h"
#include "libsa.h"
#include "net.h"
#include "netif.h"
#include "config.h"
#include "bootparam.h"
#include "dev_net.h"
extern int nfs_root_node[]; /* XXX - get from nfs_mount() */
struct in_addr myip, rootip, gateip, mask;
char rootpath[FNAME_SIZE];
int netdev_sock = -1;
static int open_count;
static int
net_mountroot(struct open_file *f, char *devname)
{
int error;
#ifdef DEBUG
printf("net_mountroot: %s\n", devname);
#endif
/*
* Get info for NFS boot: our IP address, our hostname,
* server IP address, and our root path on the server.
* There are two ways to do this: The old, Sun way,
* and the more modern, BOOTP way. (RFC951, RFC1048)
*/
#ifdef SUN_BOOTPARAMS
/* Get boot info using RARP and Sun bootparams. */
/* Get our IP address. (rarp.c) */
if (rarp_getipaddress(netdev_sock) == -1)
return (EIO);
printf("boot: client IP address: %s\n", intoa(myip.s_addr));
/* Get our hostname, server IP address. */
if (bp_whoami(netdev_sock))
return (EIO);
printf("boot: client name: %s\n", hostname);
/* Get the root pathname. */
if (bp_getfile(netdev_sock, "root", &rootip, rootpath))
return (EIO);
#else
/* Get boot info using BOOTP way. (RFC951, RFC1048) */
bootp(netdev_sock);
printf("Using IP address: %s\n", intoa(myip.s_addr));
printf("myip: %s (%s)", hostname, intoa(myip));
if (gateip)
printf(", gateip: %s", intoa(gateip));
if (mask)
printf(", mask: %s", intoa(mask));
printf("\n");
#endif
printf("root addr=%s path=%s\n", intoa(rootip.s_addr), rootpath);
/* Get the NFS file handle (mount). */
error = nfs_mount(netdev_sock, rootip, rootpath);
return (error);
}
/*
* machdep_common_ether: get ethernet address
*/
void
machdep_common_ether(u_char *ether)
{
u_char *ea;
if (bugargs.cputyp == CPU_147) {
ea = (u_char *) ETHER_ADDR_147;
if ((*(int *) ea & 0x2fffff00) == 0x2fffff00)
panic("ERROR: ethernet address not set!");
ether[0] = 0x08;
ether[1] = 0x00;
ether[2] = 0x3e;
ether[3] = ea[0];
ether[4] = ea[1];
ether[5] = ea[2];
} else {
ea = (u_char *) ETHER_ADDR_16X;
if (ea[0] + ea[1] + ea[2] + ea[3] + ea[4] + ea[5] == 0)
panic("ERROR: ethernet address not set!");
ether[0] = ea[0];
ether[1] = ea[1];
ether[2] = ea[2];
ether[3] = ea[3];
ether[4] = ea[4];
ether[5] = ea[5];
}
}
/*
* Called by devopen after it sets f->f_dev to our devsw entry.
* This opens the low-level device and sets f->f_devdata.
*/
int
net_open(struct open_file *f, char *devname)
{
int error = 0;
/* On first open, do netif open, mount, etc. */
if (open_count == 0) {
/* Find network interface. */
if ((netdev_sock = netif_open(devname)) < 0)
return (error=ENXIO);
if ((error = net_mountroot(f, devname)) != 0)
return (error);
}
open_count++;
f->f_devdata = nfs_root_node;
return (error);
}
int
net_close(struct open_file *f)
{
/* On last close, do netif close, etc. */
if (open_count > 0)
if (--open_count == 0)
netif_close(netdev_sock);
f->f_devdata = NULL;
}
int
net_ioctl(struct open_file *f, u_long cmd, void *data)
{
return EIO;
}
int
net_strategy(void *devdata, int rw, daddr_t blk, size_t size, void *buf,
size_t *rsize)
{
return EIO;
}