1/*	$NetBSD: nif_tlp.c,v 1.2 2008/04/28 20:23:16 martin Exp $	*/
2
3/*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by UCHIYAMA Yasushi.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/param.h>
33#include <sys/socket.h>
34
35#include <lib/libsa/stand.h>
36#include <lib/libkern/libkern.h>
37
38#include <sys/socket.h>
39#include <net/if.h>
40#include <netinet/in.h>
41#include <netinet/in_systm.h>
42
43#include <lib/libsa/net.h>
44#include <lib/libsa/netif.h>
45#include <lib/libsa/dev_net.h>
46
47#include "boot.h"
48
49static int tlp_match(struct netif *, void *);
50static int tlp_probe(struct netif *, void *);
51static void tlp_attach(struct iodesc *, void *);
52static int tlp_get(struct iodesc *, void *, size_t, saseconds_t);
53static int tlp_put(struct iodesc *, void *, size_t);
54static void tlp_end(struct netif *);
55
56#define MIN_LEN		60	/* ETHER_MIN_LEN - ETHER_CRC_LEN */
57
58static struct netif_stats tlp_stats[1];
59
60static struct netif_dif tlp_ifs[] = {
61	{ 0, 1, &tlp_stats[0], NULL, 0 },
62};
63
64struct netif_driver ether_tlp_driver = {
65	"tlp",
66	tlp_match,
67	tlp_probe,
68	tlp_attach,
69	tlp_get,
70	tlp_put,
71	tlp_end,
72	tlp_ifs,
73	1,
74};
75
76#ifdef DEBUG
77int debug = 1;		/* referred in various libsa net sources */
78#endif
79
80int
81tlp_match(struct netif *netif, void *hint)
82{
83
84	/* always match for onboard tlp */
85	return 1;
86}
87
88int
89tlp_probe(struct netif *netif, void *hint)
90{
91
92	/* XXX */
93	return 0;
94}
95
96void
97tlp_attach(struct iodesc *desc, void *hint)
98{
99	struct netif *nif = desc->io_netif;
100	struct netif_dif *dif = &nif->nif_driver->netif_ifs[nif->nif_unit];
101
102	dif->dif_private = tlp_init(&desc->myea);
103}
104
105int
106tlp_get(struct iodesc *desc, void *pkt, size_t maxlen, saseconds_t timeout)
107{
108	int len;
109	struct netif *nif = desc->io_netif;
110	struct netif_dif *dif = &nif->nif_driver->netif_ifs[nif->nif_unit];
111	void *l = dif->dif_private;
112
113	len = tlp_recv(l, pkt, maxlen, timeout);
114	if (len == -1) {
115		printf("tlp: receive timeout\n");
116		/* XXX */
117	}
118
119	if (len < MIN_LEN)
120		len = -1;
121
122	return len;
123}
124
125int
126tlp_put(struct iodesc *desc, void *pkt, size_t len)
127{
128	struct netif *nif = desc->io_netif;
129	struct netif_dif *dif = &nif->nif_driver->netif_ifs[nif->nif_unit];
130	void *l = dif->dif_private;
131	int rv;
132	size_t sendlen;
133
134	sendlen = len;
135	if (sendlen < MIN_LEN)
136		sendlen = MIN_LEN;	/* XXX */
137
138	rv = tlp_send(l, pkt, sendlen);
139
140	return rv;
141}
142
143void
144tlp_end(struct netif *netif)
145{
146}
147