1 files changed, 84 insertions, 0 deletions
diff --git a/sys/arch/sgi/stand/boot/netio.c b/sys/arch/sgi/stand/boot/netio.c
new file mode 100644
index 00000000000..2a25d7f8aa0
--- /dev/null
+++ b/sys/arch/sgi/stand/boot/netio.c
@@ -0,0 +1,84 @@
+/*	$OpenBSD: netio.c,v 1.1 2012/03/19 17:38:31 miod Exp $	*/
+
+/*
+ * Copyright (c) 2012 Miodrag Vallat.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+
+#include <sys/param.h>
+#include <lib/libkern/libkern.h>
+#include <stand.h>
+
+#include <mips64/arcbios.h>
+
+int
+netstrategy(void *devdata, int rw, daddr32_t bn, size_t reqcnt, void *addr,
+    size_t *cnt)
+{
+	long fd = (long)devdata;
+	long result;
+	int rc;
+
+	rc = Bios_Read(fd, addr, reqcnt, &result);
+	if (rc != 0)
+		return (EIO);
+
+	*cnt = result;
+	return 0;
+}
+
+int
+netopen(struct open_file *f, ...)
+{
+	char *path;
+	long fd;
+	int rc;
+	va_list ap;
+
+	va_start(ap, f);
+	path = va_arg(ap, char *);
+	va_end(ap);
+
+	/* to match netfs.c filename buffers... */
+	if (strlen(path) > 128 - 1)
+		return ENAMETOOLONG;
+
+	rc = Bios_Open(path, 0, &fd);
+	if (rc != 0) {
+		switch (rc) {
+		case arc_EACCES:
+			return EACCES;
+		case arc_EISDIR:
+			return EISDIR;
+		case arc_ENOENT:
+			return ENOENT;
+		default:
+			return ENXIO;
+		}
+	}
+
+	f->f_devdata = (void *)fd;
+
+	return 0;
+}
+
+int
+netclose(struct open_file *f)
+{
+	long fd = (long)f->f_devdata;
+
+	(void)Bios_Close(fd);
+	return 0;
+}