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/* $NetBSD: lambio.c,v 1.4 2010/10/12 22:28:54 joerg Exp $ */
/*
* Copyright (C) 2001 WIDE Project. 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. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT 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 <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_ether.h>
#include <ifaddrs.h>
#include <string.h>
#include <machine/sysarch.h>
#include <machine/pio.h>
#include "lambio.h"
#define BASEPORT (0x378)
/* We get these from libi386.so, but there are no public prototypes. */
int i386_get_ioperm(u_long *);
int i386_set_ioperm(u_long *);
/*
* These used to be provided by machine/pio.h as inline functions,
* but that's not true anymore, so use a local copy.
*/
static void
lamb_outb(unsigned port, u_int8_t data)
{
asm volatile("outb %0,%w1" : : "a" (data), "d" (port));
}
static u_int8_t
lamb_inb(unsigned port)
{
u_int8_t data;
__asm volatile("inb %w1,%0" : "=a" (data) : "d" (port));
return data;
}
int
lamb_open()
{
unsigned long ioperm[1024 / sizeof(unsigned long) / 8];
int off, bit;
int i;
if (i386_get_ioperm(ioperm) < 0)
return -1;
for (i = 0; i < 3; i++) {
off = (BASEPORT + i);
bit = off % (sizeof(ioperm[0]) * 8);
off /= (sizeof(ioperm[0]) * 8);
ioperm[off] &= ~(1 << bit);
}
if (i386_set_ioperm(ioperm) < 0)
return -1;
return 0;
}
/* returns 1 if shutdown button is pressed */
int
lamb_reboot()
{
if ((lamb_inb(BASEPORT + 1) & 0x20) == 0)
return 1;
else
return 0;
}
void
lamb_led(on)
int on;
{
lamb_outb(BASEPORT + 2, on ? 8 : 0);
}
/*
* check MAC address against IEEE-registered Wildlab MAC address
*/
int
islamb()
{
struct ifaddrs *ifa, *ifap;
struct sockaddr_dl *sdl;
const u_int8_t wildlab[] = { 0x00, 0x30, 0xf5 };
if (getifaddrs(&ifap) < 0)
return 0;
for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family != AF_LINK)
continue;
sdl = (struct sockaddr_dl *)ifa->ifa_addr;
if (sdl->sdl_alen != sizeof(struct ether_addr))
continue;
if (memcmp(LLADDR(sdl), wildlab, sizeof(wildlab)) != 0)
continue;
freeifaddrs(ifap);
return 1;
}
freeifaddrs(ifap);
return 0;
}
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