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  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. /**
  30.  * @file
  31.  * @brief   Architecture dependent parts of OpenFirmware interface.
  32.  */
  33.  
  34. #include <ofwarch.h>  
  35. #include <ofw.h>
  36. #include <printf.h>
  37.  
  38. int bpp2align[] = {
  39.     [0] = 0,        /** Invalid bpp. */
  40.     [1] = 1,        /** 8bpp is not aligned. */
  41.     [2] = 2,        /** 16bpp is naturally aligned. */
  42.     [3] = 4,        /** 24bpp is aligned on 4 byte boundary. */
  43.     [4] = 4,        /** 32bpp is naturally aligned. */
  44. };
  45.  
  46. void write(const char *str, const int len)
  47. {
  48.     int i;
  49.    
  50.     for (i = 0; i < len; i++) {
  51.         if (str[i] == '\n')
  52.             ofw_write("\r", 1);
  53.         ofw_write(&str[i], 1);
  54.     }
  55. }
  56.  
  57. int ofw_translate_failed(ofw_arg_t flag)
  58. {
  59.     return flag != -1;
  60. }
  61.  
  62. int ofw_keyboard(keyboard_t *keyboard)
  63. {
  64.     char device_name[BUF_SIZE];
  65.     uint32_t virtaddr;
  66.        
  67.     if (ofw_get_property(ofw_aliases, "keyboard", device_name, sizeof(device_name)) <= 0)
  68.         return false;
  69.                    
  70.     phandle device = ofw_find_device(device_name);
  71.     if (device == -1)
  72.         return false;
  73.                                    
  74.     if (ofw_get_property(device, "address", &virtaddr, sizeof(virtaddr)) <= 0)
  75.         return false;
  76.                                                
  77.     if (!(keyboard->addr = ofw_translate((void *) ((uintptr_t) virtaddr))))
  78.         return false;
  79.  
  80.     return true;
  81. }
  82.