initial import of NetBSD tree

1 files changed, 219 insertions, 0 deletions

diff --git a/sys/arch/sparc/stand/netif_sun.c b/sys/arch/sparc/stand/netif_sun.c
new file mode 100644
index 00000000000..930d5d9659b
--- /dev/null
+++ b/sys/arch/sparc/stand/netif_sun.c
@@ -0,0 +1,219 @@
+/*	$NetBSD: netif_sun.c,v 1.2 1995/09/18 21:31:48 pk 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.
+ */
+
+/*
+ * The Sun PROM has a fairly general set of network drivers,
+ * so it is easiest to just replace the netif module with
+ * this adaptation to the PROM network interface.
+ */
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <string.h>
+#include <time.h>
+
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <netinet/in_systm.h>
+
+#include "stand.h"
+#include "net.h"
+#include "netif.h"
+
+#include "promdev.h"
+
+static struct netif netif_prom;
+
+#ifdef NETIF_DEBUG
+int netif_debug;
+#endif
+
+struct iodesc sockets[SOPEN_MAX];
+
+struct iodesc *
+socktodesc(sock)
+	int sock;
+{
+	if (sock != 0) {
+		return(NULL);
+	}
+	return (sockets);
+}
+
+int
+netif_open(machdep_hint)
+	void *machdep_hint;
+{
+	struct promdata *pd = machdep_hint;
+	struct iodesc *io;
+	int fd, error;
+
+	/* find a free socket */
+	io = sockets;
+	if (io->io_netif) {
+#ifdef	DEBUG
+		printf("netif_open: device busy\n");
+#endif
+		errno = ENFILE;
+		return (-1);
+	}
+	bzero(io, sizeof(*io));
+
+	netif_prom.nif_devdata = pd;
+	io->io_netif = &netif_prom;
+
+	/* Put our ethernet address in io->myea */
+	prom_getether(pd->fd, io->myea);
+
+	return(0);
+}
+
+int
+netif_close(fd)
+	int fd;
+{
+	struct iodesc *io;
+	struct netif *ni;
+
+	if (fd != 0) {
+		errno = EBADF;
+		return(-1);
+	}
+
+	io = &sockets[fd];
+	ni = io->io_netif;
+	if (ni != NULL) {
+		ni->nif_devdata = NULL;
+		io->io_netif = NULL;
+	}
+	return(0);
+}
+
+/*
+ * Send a packet.  The ether header is already there.
+ * Return the length sent (or -1 on error).
+ */
+ssize_t
+netif_put(desc, pkt, len)
+	struct iodesc *desc;
+	void *pkt;
+	size_t len;
+{
+	struct promdata *pd;
+	ssize_t rv;
+	size_t sendlen;
+
+	pd = (struct promdata *)desc->io_netif->nif_devdata;
+
+#ifdef NETIF_DEBUG
+	if (netif_debug) {
+		struct ether_header *eh;
+
+		printf("netif_put: desc=0x%x pkt=0x%x len=%d\n",
+			   desc, pkt, len);
+		eh = pkt;
+		printf("dst: %s ", ether_sprintf(eh->ether_dhost));
+		printf("src: %s ", ether_sprintf(eh->ether_shost));
+		printf("type: 0x%x\n", eh->ether_type & 0xFFFF);
+	}
+#endif
+
+	sendlen = len;
+	if (sendlen < 60) {
+		sendlen = 60;
+#ifdef NETIF_DEBUG
+		printf("netif_put: length padded to %d\n", sendlen);
+#endif
+	}
+
+	rv = (*pd->xmit)(pd, pkt, sendlen);
+
+#ifdef NETIF_DEBUG
+	if (netif_debug)
+		printf("netif_put: xmit returned %d\n", rv);
+#endif
+
+	return rv;
+}
+
+/*
+ * Receive a packet, including the ether header.
+ * Return the total length received (or -1 on error).
+ */
+ssize_t
+netif_get(desc, pkt, maxlen, timo)
+	struct iodesc *desc;
+	void *pkt;
+	size_t maxlen;
+	time_t timo;
+{
+	struct promdata *pd;
+	int tick0, tmo_ticks;
+	ssize_t len;
+
+	pd = (struct promdata *)desc->io_netif->nif_devdata;
+
+#ifdef NETIF_DEBUG
+	if (netif_debug)
+		printf("netif_get: pkt=0x%x, maxlen=%d, tmo=%d\n",
+			   pkt, maxlen, timo);
+#endif
+
+	tmo_ticks = timo * hz;
+	tick0 = getticks();
+
+	do {
+		len = (*pd->recv)(pd, pkt, maxlen);
+	} while ((len == 0) && ((getticks() - tick0) < tmo_ticks));
+
+#ifdef NETIF_DEBUG
+	if (netif_debug)
+		printf("netif_get: received len=%d\n", len);
+#endif
+
+	if (len < 12)
+		return -1;
+
+#ifdef NETIF_DEBUG
+	if (netif_debug) {
+		struct ether_header *eh = pkt;
+
+		printf("dst: %s ", ether_sprintf(eh->ether_dhost));
+		printf("src: %s ", ether_sprintf(eh->ether_shost));
+		printf("type: 0x%x\n", eh->ether_type & 0xFFFF);
+	}
+#endif
+
+	return len;
+}