if_prom.c revision 1.3
1 /* $NetBSD: if_prom.c,v 1.3 1996/10/02 21:06:56 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1993 Adam Glass 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Adam Glass. 18 * 4. The name of the Author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Adam Glass ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/types.h> 36 37 #include <netinet/in.h> 38 #include <netinet/in_systm.h> 39 40 #include "netif.h" 41 #include "include/prom.h" 42 #include "lib/libkern/libkern.h" 43 44 int prom_probe(); 45 int prom_match(); 46 void prom_init(); 47 int prom_get(); 48 int prom_put(); 49 void prom_end(); 50 51 extern struct netif_stats prom_stats[]; 52 53 struct netif_dif prom_ifs[] = { 54 /* dif_unit dif_nsel dif_stats dif_private */ 55 { 0, 1, &prom_stats[0], 0, }, 56 }; 57 58 struct netif_stats prom_stats[NENTS(prom_ifs)]; 59 60 struct netif_driver prom_netif_driver = { 61 "prom", /* netif_bname */ 62 prom_match, /* netif_match */ 63 prom_probe, /* netif_probe */ 64 prom_init, /* netif_init */ 65 prom_get, /* netif_get */ 66 prom_put, /* netif_put */ 67 prom_end, /* netif_end */ 68 prom_ifs, /* netif_ifs */ 69 NENTS(prom_ifs) /* netif_nifs */ 70 }; 71 72 int netfd; 73 74 int 75 prom_match(nif, machdep_hint) 76 struct netif *nif; 77 void *machdep_hint; 78 { 79 80 return (1); 81 } 82 83 int 84 prom_probe(nif, machdep_hint) 85 struct netif *nif; 86 void *machdep_hint; 87 { 88 89 return 0; 90 } 91 92 int 93 prom_put(desc, pkt, len) 94 struct iodesc *desc; 95 void *pkt; 96 int len; 97 { 98 99 prom_write(netfd, len, pkt, 0); 100 101 return len; 102 } 103 104 105 int 106 prom_get(desc, pkt, len, timeout) 107 struct iodesc *desc; 108 void *pkt; 109 int len; 110 time_t timeout; 111 { 112 prom_return_t ret; 113 time_t t; 114 int cc; 115 char hate[2000]; 116 117 t = getsecs(); 118 cc = 0; 119 while (((getsecs() - t) < timeout) && !cc) { 120 #if 0 /* TC machines' firmware */ 121 ret.bits = prom_read(netfd, 0, hate, 0); 122 #else 123 ret.bits = prom_read(netfd, sizeof hate, hate, 0); 124 #endif 125 if (ret.u.status == 0) 126 cc += ret.u.retval; 127 } 128 129 #if 0 /* TC machines' firmware */ 130 cc = min(cc, len); 131 #else 132 cc = len; 133 #endif 134 bcopy(hate, pkt, cc); 135 136 return cc; 137 } 138 139 extern char *strchr(); 140 141 void 142 prom_init(desc, machdep_hint) 143 struct iodesc *desc; 144 void *machdep_hint; 145 { 146 147 prom_return_t ret; 148 char devname[64]; 149 int devlen, i; 150 char *enet_addr; 151 152 ret.bits = prom_getenv(PROM_E_BOOTED_DEV, devname, sizeof(devname)); 153 devlen = ret.u.retval; 154 155 /* Ethernet address is the 9th component of the booted_dev string. */ 156 enet_addr = devname; 157 for (i = 0; i < 8; i++) { 158 enet_addr = strchr(enet_addr, ' '); 159 if (enet_addr == NULL) { 160 printf("Boot device name does not contain ethernet address.\n"); 161 goto punt; 162 } 163 enet_addr++; 164 } 165 if (enet_addr != NULL) { 166 int hv, lv; 167 168 #define dval(c) (((c) >= '0' && (c) <= '9') ? ((c) - '0') : \ 169 (((c) >= 'A' && (c) <= 'F') ? (10 + (c) - 'A') : \ 170 (((c) >= 'a' && (c) <= 'f') ? (10 + (c) - 'a') : -1))) 171 172 for (i = 0; i < 6; i++) { 173 hv = dval(*enet_addr); enet_addr++; 174 lv = dval(*enet_addr); enet_addr++; 175 enet_addr++; 176 177 if (hv == -1 || lv == -1) { 178 printf("Bogus ethernet address.\n"); 179 goto punt; 180 } 181 182 desc->myea[i] = (hv << 4) | lv; 183 } 184 #undef dval 185 } 186 187 printf("boot: ethernet address: %s\n", ether_sprintf(desc->myea)); 188 189 ret.bits = prom_open(devname, devlen + 1); 190 if (ret.u.status) { 191 printf("prom_init: open failed: %d\n", ret.u.status); 192 return; 193 } 194 netfd = ret.u.retval; 195 return; 196 197 punt: 198 printf("Boot device name was: \"%s\"\n", devname); 199 printf("\n"); 200 printf("Your firmware may be too old to network-boot NetBSD/Alpha.\n"); 201 halt(); 202 } 203 204 void 205 prom_end(nif) 206 struct netif *nif; 207 { 208 209 prom_close(netfd); 210 } 211
Indexes created Mon Oct 20 05:10:11 GMT 2025