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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. /** @addtogroup genarch
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #ifndef KERN_OFW_H_
  36. #define KERN_OFW_H_
  37.  
  38. #include <arch/types.h>
  39.  
  40. #define MAX_OFW_ARGS    12
  41.  
  42. typedef unative_t ofw_arg_t;
  43. typedef unsigned int ihandle;
  44. typedef unsigned int phandle;
  45.  
  46. /** OpenFirmware command structure
  47.  *
  48.  */
  49. typedef struct {
  50.     const char *service;        /**< Command name */
  51.     unative_t nargs;        /**< Number of in arguments */
  52.     unative_t nret;         /**< Number of out arguments */
  53.     ofw_arg_t args[MAX_OFW_ARGS];   /**< Buffer for in and out arguments */
  54. } ofw_args_t;
  55.  
  56. extern int ofw(ofw_args_t *);       /**< OpenFirmware Client Interface entry point. */
  57.  
  58. extern void ofw_init(void);
  59. extern void ofw_done(void);
  60. extern ofw_arg_t ofw_call(const char *service, const int nargs, const int nret, ofw_arg_t *rets, ...);
  61. extern void ofw_putchar(const char ch);
  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. extern void *ofw_translate(const void *addr);
  65. extern void *ofw_claim(const void *addr, const int size, const int align);
  66.  
  67. #endif
  68.  
  69. /** @}
  70.  */
  71.