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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. #ifndef __OFW_H__
  30. #define __OFW_H__
  31.  
  32. #define NULL    0
  33. #define MAX_OFW_ARGS    10
  34.  
  35. typedef __builtin_va_list va_list;
  36.  
  37. #define va_start(ap, last)      __builtin_va_start(ap, last)
  38. #define va_arg(ap, type)        __builtin_va_arg(ap, type)
  39. #define va_end(ap)          __builtin_va_end(ap)
  40.  
  41. typedef unsigned int ofw_arg_t;
  42. typedef unsigned int ihandle;
  43. typedef unsigned int phandle;
  44.  
  45. /** OpenFirmware command structure
  46.  *
  47.  */
  48. typedef struct {
  49.     const char *service;          /**< Command name */
  50.     unsigned int nargs;           /**< Number of in arguments */
  51.     unsigned int nret;            /**< Number of out arguments */
  52.     ofw_arg_t args[MAX_OFW_ARGS]; /**< List of arguments */
  53. } ofw_args_t;
  54.  
  55. typedef void (*ofw_entry)(ofw_args_t *);
  56.  
  57. extern void init(void);
  58. extern int ofw_call(const char *service, const int nargs, const int nret, ...);
  59. extern void ofw_write(const char *str, const int len);
  60. extern void ofw_puts(const char *str);
  61. extern void *ofw_claim(const void *addr, const int size, const int align);
  62. extern phandle ofw_find_device(const char *name);
  63. extern int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen);
  64.  
  65. #endif
  66.