diff options
Diffstat (limited to 'sys/arch/alpha/stand/netboot/if_prom.c')
| -rw-r--r-- | sys/arch/alpha/stand/netboot/if_prom.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/sys/arch/alpha/stand/netboot/if_prom.c b/sys/arch/alpha/stand/netboot/if_prom.c new file mode 100644 index 00000000000..97664bb66ff --- /dev/null +++ b/sys/arch/alpha/stand/netboot/if_prom.c @@ -0,0 +1,201 @@ +/* $OpenBSD: if_prom.c,v 1.1 1996/10/30 22:40:56 niklas Exp $ */ +/* $NetBSD: if_prom.c,v 1.4 1996/10/02 21:18:49 cgd Exp $ */ + +/* + * Copyright (c) 1993 Adam Glass + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Adam Glass. + * 4. The name of the Author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY Adam Glass ``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 REGENTS 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/param.h> +#include <sys/types.h> + +#include <netinet/in.h> +#include <netinet/in_systm.h> + +#include "netif.h" +#include "include/prom.h" +#include "lib/libkern/libkern.h" + +int prom_probe(); +int prom_match(); +void prom_init(); +int prom_get(); +int prom_put(); +void prom_end(); + +extern struct netif_stats prom_stats[]; + +struct netif_dif prom_ifs[] = { +/* dif_unit dif_nsel dif_stats dif_private */ +{ 0, 1, &prom_stats[0], 0, }, +}; + +struct netif_stats prom_stats[NENTS(prom_ifs)]; + +struct netif_driver prom_netif_driver = { + "prom", /* netif_bname */ + prom_match, /* netif_match */ + prom_probe, /* netif_probe */ + prom_init, /* netif_init */ + prom_get, /* netif_get */ + prom_put, /* netif_put */ + prom_end, /* netif_end */ + prom_ifs, /* netif_ifs */ + NENTS(prom_ifs) /* netif_nifs */ +}; + +int netfd; + +int +prom_match(nif, machdep_hint) + struct netif *nif; + void *machdep_hint; +{ + + return (1); +} + +int +prom_probe(nif, machdep_hint) + struct netif *nif; + void *machdep_hint; +{ + + return 0; +} + +int +prom_put(desc, pkt, len) + struct iodesc *desc; + void *pkt; + int len; +{ + + prom_write(netfd, len, pkt, 0); + + return len; +} + + +int +prom_get(desc, pkt, len, timeout) + struct iodesc *desc; + void *pkt; + int len; + time_t timeout; +{ + prom_return_t ret; + time_t t; + int cc; + char hate[2000]; + + t = getsecs(); + cc = 0; + while (((getsecs() - t) < timeout) && !cc) { + ret.bits = prom_read(netfd, sizeof hate, hate, 0); + if (ret.u.status == 0) + cc += ret.u.retval; + } + cc = len; + bcopy(hate, pkt, cc); + + return cc; +} + +extern char *strchr(); + +void +prom_init(desc, machdep_hint) + struct iodesc *desc; + void *machdep_hint; +{ + prom_return_t ret; + char devname[64]; + int devlen, i; + char *enet_addr; + + ret.bits = prom_getenv(PROM_E_BOOTED_DEV, devname, sizeof(devname)); + devlen = ret.u.retval; + + /* Ethernet address is the 9th component of the booted_dev string. */ + enet_addr = devname; + for (i = 0; i < 8; i++) { + enet_addr = strchr(enet_addr, ' '); + if (enet_addr == NULL) { + printf("Boot device name does not contain ethernet address.\n"); + goto punt; + } + enet_addr++; + } + if (enet_addr != NULL) { + int hv, lv; + +#define dval(c) (((c) >= '0' && (c) <= '9') ? ((c) - '0') : \ + (((c) >= 'A' && (c) <= 'F') ? (10 + (c) - 'A') : \ + (((c) >= 'a' && (c) <= 'f') ? (10 + (c) - 'a') : -1))) + + for (i = 0; i < 6; i++) { + hv = dval(*enet_addr); enet_addr++; + lv = dval(*enet_addr); enet_addr++; + enet_addr++; + + if (hv == -1 || lv == -1) { + printf("Bogus ethernet address.\n"); + goto punt; + } + + desc->myea[i] = (hv << 4) | lv; + } +#undef dval + } + + printf("boot: ethernet address: %s\n", ether_sprintf(desc->myea)); + + ret.bits = prom_open(devname, devlen + 1); + if (ret.u.status) { + printf("prom_init: open failed: %d\n", ret.u.status); + goto punt; + } + netfd = ret.u.retval; + return; + +punt: + printf("Boot device name was: \"%s\"\n", devname); + printf("\n"); + printf("Your firmware may be too old to network-boot OpenBSD/Alpha.\n"); + halt(); +} + +void +prom_end(nif) + struct netif *nif; +{ + + prom_close(netfd); +} |