arch/ppc64/loader/ofw.c

   1 /*
   2  * Copyright (C) 2005 Martin Decky
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <ofw.h>
  30 #include <printf.h>
  31
  32 void write(const char *str, const int len)
  33 {
  34         ofw_write(str, len);
  35 }
  36
  37 int ofw_keyboard(keyboard_t *keyboard)
  38 {
  39         char device_name[BUF_SIZE];
  40
  41         if (ofw_get_property(ofw_aliases, "macio", device_name, sizeof(device_name)) <= 0)
  42                 return false;
  43
  44         phandle device = ofw_find_device(device_name);
  45         if (device == -1)
  46                 return false;
  47
  48         pci_reg_t macio;
  49         if (ofw_get_property(device, "assigned-addresses", &macio, sizeof(macio)) <= 0)
  50                 return false;
  51         keyboard->addr = (void *) macio.addr.addr_lo;
  52         keyboard->size = macio.size_lo;
  53
  54         return true;
  55 }