Annotation of sys/arch/sparc64/stand/ofwboot/netif_of.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: netif_of.c,v 1.4 2001/08/22 10:44:02 art Exp $ */
2: /* $NetBSD: netif_of.c,v 1.1 2000/08/20 14:58:39 mrg Exp $ */
3:
4: /*
5: * Copyright (C) 1995 Wolfgang Solfrank.
6: * Copyright (C) 1995 TooLs GmbH.
7: * All rights reserved.
8: *
9: * Redistribution and use in source and binary forms, with or without
10: * modification, are permitted provided that the following conditions
11: * are met:
12: * 1. Redistributions of source code must retain the above copyright
13: * notice, this list of conditions and the following disclaimer.
14: * 2. Redistributions in binary form must reproduce the above copyright
15: * notice, this list of conditions and the following disclaimer in the
16: * documentation and/or other materials provided with the distribution.
17: * 3. All advertising materials mentioning features or use of this software
18: * must display the following acknowledgement:
19: * This product includes software developed by TooLs GmbH.
20: * 4. The name of TooLs GmbH may not be used to endorse or promote products
21: * derived from this software without specific prior written permission.
22: *
23: * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
24: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26: * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29: * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31: * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32: * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33: */
34:
35: /*
36: * Open Firmware does most of the job for interfacing to the hardware,
37: * so it is easiest to just replace the netif module with
38: * this adaptation to the PROM network interface.
39: *
40: * Note: this is based in part on sys/arch/sparc/stand/netif_sun.c
41: */
42:
43: #include <sys/param.h>
44: #include <sys/socket.h>
45:
46: #include <net/if.h>
47:
48: #include <netinet/in.h>
49: #include <netinet/in_systm.h>
50: #include <netinet/if_ether.h>
51:
52: #include <lib/libsa/stand.h>
53: #include <lib/libsa/net.h>
54: #include <lib/libsa/netif.h>
55:
56: #include "ofdev.h"
57: #include "openfirm.h"
58:
59: static struct netif netif_of;
60:
61: struct iodesc sockets[SOPEN_MAX];
62:
63: struct iodesc *
64: socktodesc(sock)
65: int sock;
66: {
67: if (sock != 0)
68: return NULL;
69: return sockets;
70: }
71:
72: int
73: netif_open(machdep_hint)
74: void *machdep_hint;
75: {
76: struct of_dev *op = machdep_hint;
77: struct iodesc *io;
78: int fd, error;
79: char addr[32];
80:
81: #ifdef NETIF_DEBUG
82: printf("netif_open...");
83: #endif
84: /* find a free socket */
85: io = sockets;
86: if (io->io_netif) {
87: #ifdef NETIF_DEBUG
88: printf("device busy\n");
89: #endif
90: errno = ENFILE;
91: return -1;
92: }
93: bzero(io, sizeof *io);
94:
95: netif_of.nif_devdata = op;
96: io->io_netif = &netif_of;
97:
98: /* Put our ethernet address in io->myea */
99: OF_getprop(OF_instance_to_package(op->handle),
100: "mac-address", io->myea, sizeof io->myea);
101:
102: #ifdef NETIF_DEBUG
103: printf("OK\n");
104: #endif
105: return 0;
106: }
107:
108: int
109: netif_close(fd)
110: int fd;
111: {
112: struct iodesc *io;
113: struct netif *ni;
114:
115: #ifdef NETIF_DEBUG
116: printf("netif_close(%x)...", fd);
117: #endif
118: if (fd != 0) {
119: #ifdef NETIF_DEBUG
120: printf("EBADF\n");
121: #endif
122: errno = EBADF;
123: return -1;
124: }
125:
126: io = &sockets[fd];
127: ni = io->io_netif;
128: if (ni != NULL) {
129: ni->nif_devdata = NULL;
130: io->io_netif = NULL;
131: }
132: #ifdef NETIF_DEBUG
133: printf("OK\n");
134: #endif
135: return 0;
136: }
137:
138: /*
139: * Send a packet. The ether header is already there.
140: * Return the length sent (or -1 on error).
141: */
142: ssize_t
143: netif_put(desc, pkt, len)
144: struct iodesc *desc;
145: void *pkt;
146: size_t len;
147: {
148: struct of_dev *op;
149: ssize_t rv;
150: size_t sendlen;
151:
152: op = desc->io_netif->nif_devdata;
153:
154: #ifdef NETIF_DEBUG
155: {
156: struct ether_header *eh;
157:
158: printf("netif_put: desc=0x%x pkt=0x%x len=%d\n",
159: desc, pkt, len);
160: eh = pkt;
161: printf("dst: %s ", ether_sprintf(eh->ether_dhost));
162: printf("src: %s ", ether_sprintf(eh->ether_shost));
163: printf("type: 0x%x\n", eh->ether_type & 0xFFFF);
164: }
165: #endif
166:
167: sendlen = len;
168: if (sendlen < 60) {
169: sendlen = 60;
170: #ifdef NETIF_DEBUG
171: printf("netif_put: length padded to %d\n", sendlen);
172: #endif
173: }
174:
175: rv = OF_write(op->handle, pkt, sendlen);
176:
177: #ifdef NETIF_DEBUG
178: printf("netif_put: xmit returned %d\n", rv);
179: #endif
180:
181: return rv;
182: }
183:
184: /*
185: * Receive a packet, including the ether header.
186: * Return the total length received (or -1 on error).
187: */
188: ssize_t
189: netif_get(desc, pkt, maxlen, timo)
190: struct iodesc *desc;
191: void *pkt;
192: size_t maxlen;
193: time_t timo;
194: {
195: struct of_dev *op;
196: int tick0, tmo_ms;
197: int len;
198:
199: op = desc->io_netif->nif_devdata;
200:
201: #ifdef NETIF_DEBUG
202: printf("netif_get: pkt=0x%x, maxlen=%d, tmo=%d\n",
203: pkt, maxlen, timo);
204: #endif
205:
206: tmo_ms = timo * 1000;
207: tick0 = OF_milliseconds();
208:
209: do {
210: len = OF_read(op->handle, pkt, maxlen);
211: } while ((len == -2 || len == 0) &&
212: (OF_milliseconds() - tick0 < tmo_ms));
213:
214: #ifdef NETIF_DEBUG
215: printf("netif_get: received len=%d\n", len);
216: #endif
217:
218: if (len < 12)
219: return -1;
220:
221: #ifdef NETIF_DEBUG
222: {
223: struct ether_header *eh = pkt;
224:
225: printf("dst: %s ", ether_sprintf(eh->ether_dhost));
226: printf("src: %s ", ether_sprintf(eh->ether_shost));
227: printf("type: 0x%x\n", eh->ether_type & 0xFFFF);
228: }
229: #endif
230:
231: return len;
232: }
233:
234: /*
235: * Shouldn't really be here, but is used solely for networking, so...
236: */
237: time_t
238: getsecs()
239: {
240: return OF_milliseconds() / 1000;
241: }
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