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-rw-r--r--sys/boot/alpha/libalpha/srmnet.c259
1 files changed, 259 insertions, 0 deletions
diff --git a/sys/boot/alpha/libalpha/srmnet.c b/sys/boot/alpha/libalpha/srmnet.c
new file mode 100644
index 0000000..969b378
--- /dev/null
+++ b/sys/boot/alpha/libalpha/srmnet.c
@@ -0,0 +1,259 @@
+/*
+ * $FreeBSD$
+ * From: $NetBSD: if_prom.c,v 1.10 1997/09/06 14:08:33 drochner Exp $
+ */
+
+/*
+ * Copyright (c) 1997 Christopher G. Demetriou. All rights reserved.
+ * 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 <stand.h>
+#include <net.h>
+#include <netif.h>
+#include <machine/prom.h>
+#include "bbinfo.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 netbbinfo netbbinfo = {
+ 0xfeedbabedeadbeef, /* magic number */
+ 0, /* set */
+ {0, 0, 0, 0, 0, 0}, /* ether address */
+ 0, /* force */
+ { 0, }, /* pad2 */
+ 0, /* cksum */
+ 0xfeedbeefdeadbabe, /* magic number */
+};
+
+struct netif_driver srmnet = {
+ "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 = 0, broken_firmware;
+
+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) {
+ if (broken_firmware)
+ ret.bits = prom_read(netfd, 0, hate, 0);
+ else
+ ret.bits = prom_read(netfd, sizeof hate, hate, 0);
+ if (ret.u.status == 0)
+ cc = ret.u.retval;
+ }
+ if (broken_firmware)
+ cc = min(cc, len);
+ else
+ 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;
+ int netbbinfovalid;
+ char *enet_addr;
+ u_int64_t *qp, csum;
+
+ broken_firmware = 0;
+
+ csum = 0;
+ for (i = 0, qp = (u_int64_t *)&netbbinfo;
+ i < (sizeof netbbinfo / sizeof (u_int64_t)); i++, qp++)
+ csum += *qp;
+ netbbinfovalid = (csum == 0);
+ if (netbbinfovalid)
+ netbbinfovalid = netbbinfo.set;
+
+#if 0
+ printf("netbbinfo ");
+ if (!netbbinfovalid)
+ printf("invalid\n");
+ else
+ printf("valid: force = %d, ea = %s\n", netbbinfo.force,
+ ether_sprintf(netbbinfo.ether_addr));
+#endif
+
+ 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: 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("boot: boot device name contains bogus ethernet address.\n");
+ goto punt;
+ }
+
+ desc->myea[i] = (hv << 4) | lv;
+ }
+#undef dval
+ }
+
+ if (netbbinfovalid && netbbinfo.force) {
+ printf("boot: using hard-coded ethernet address (forced).\n");
+ bcopy(netbbinfo.ether_addr, desc->myea, sizeof desc->myea);
+ }
+
+ gotit:
+ 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 reallypunt;
+ }
+ netfd = ret.u.retval;
+ return;
+
+ punt:
+ broken_firmware = 1;
+ if (netbbinfovalid) {
+ printf("boot: using hard-coded ethernet address.\n");
+ bcopy(netbbinfo.ether_addr, desc->myea, sizeof desc->myea);
+ goto gotit;
+ }
+
+ reallypunt:
+ printf("\n");
+ printf("Boot device name was: \"%s\"\n", devname);
+ printf("\n");
+ printf("Your firmware may be too old to network-boot FreeBSD/alpha,\n");
+ printf("or you might have to hard-code an ethernet address into\n");
+ printf("your network boot block with setnetbootinfo(8).\n");
+ halt();
+}
+
+void
+prom_end(nif)
+ struct netif *nif;
+{
+ prom_close(netfd);
+}
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