diff options
Diffstat (limited to 'sys/boot/alpha/libalpha/delay.c')
-rw-r--r-- | sys/boot/alpha/libalpha/delay.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/sys/boot/alpha/libalpha/delay.c b/sys/boot/alpha/libalpha/delay.c deleted file mode 100644 index 5a81c78..0000000 --- a/sys/boot/alpha/libalpha/delay.c +++ /dev/null @@ -1,44 +0,0 @@ -/*- - * Copyright (c) 1998 Doug Rabson - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR 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/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <stand.h> -#include <machine/rpb.h> - -void -delay(int usecs) -{ - struct rpb *hwrpb = (struct rpb *)HWRPB_ADDR; - unsigned long end, now, start; - - start = alpha_rpcc() & 0xfffffffful; - end = start + (hwrpb->rpb_cc_freq * usecs) / 1000000; - do { - now = alpha_rpcc() & 0xfffffffful; - } while (now < end || (now > start && end < start)); -} |