LXR linux/arch/mn10300/kernel/io.c

   1/* MN10300 Misaligned multibyte-word I/O
   2 *
   3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4 * Written by David Howells (dhowells@redhat.com)
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public Licence
   8 * as published by the Free Software Foundation; either version
   9 * 2 of the Licence, or (at your option) any later version.
  10 */
  11#include <linux/module.h>
  12#include <linux/string.h>
  13#include <linux/kernel.h>
  14#include <asm/io.h>
  15
  16/*
  17 * output data from a potentially misaligned buffer
  18 */
  19void __outsl(unsigned long addr, const void *buffer, int count)
  20{
  21        const unsigned char *buf = buffer;
  22        unsigned long val;
  23
  24        while (count--) {
  25                memcpy(&val, buf, 4);
  26                outl(val, addr);
  27                buf += 4;
  28        }
  29}
  30EXPORT_SYMBOL(__outsl);
  31