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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 BOOT_OFW_H_
  30. #define BOOT_OFW_H_
  31.  
  32. #include <types.h>
  33. #include <stdarg.h>
  34.  
  35. #define BUF_SIZE        1024
  36.  
  37. #define MEMMAP_MAX_RECORDS  32
  38.  
  39. #define MAX_OFW_ARGS            12
  40.  
  41. typedef unative_t ofw_arg_t;
  42. typedef unsigned int ihandle;
  43. typedef unsigned int phandle;
  44.  
  45. /** OpenFirmware command structure
  46.  *
  47.  */
  48. typedef struct {
  49.     ofw_arg_t service;      /**< Command name. */
  50.     ofw_arg_t nargs;        /**< Number of in arguments. */
  51.     ofw_arg_t nret;         /**< Number of out arguments. */
  52.     ofw_arg_t args[MAX_OFW_ARGS];   /**< List of arguments. */
  53. } ofw_args_t;
  54.  
  55. typedef struct {
  56.     void *start;
  57.     uint32_t size;
  58. } memzone_t;
  59.  
  60. typedef struct {
  61.     uint32_t total;
  62.     uint32_t count;
  63.     memzone_t zones[MEMMAP_MAX_RECORDS];
  64. } memmap_t;
  65.  
  66. typedef struct {
  67.     void *addr;
  68.     uint32_t width;
  69.     uint32_t height;
  70.     uint32_t bpp;
  71.     uint32_t scanline;
  72. } screen_t;
  73.  
  74. typedef struct {
  75.     void *addr;
  76.     uint32_t size;
  77. } keyboard_t;
  78.  
  79. typedef struct {
  80.     uint32_t info;
  81.     uint32_t addr_hi;
  82.     uint32_t addr_lo;
  83. } pci_addr_t;
  84.  
  85. typedef struct {
  86.     pci_addr_t addr;
  87.     uint32_t size_hi;
  88.     uint32_t size_lo;
  89. } pci_reg_t;
  90.  
  91. extern uintptr_t ofw_cif;
  92.  
  93.  
  94. extern phandle ofw_chosen;
  95. extern ihandle ofw_stdout;
  96. extern phandle ofw_root;
  97. extern ihandle ofw_mmu;
  98. extern phandle ofw_memory;
  99. extern phandle ofw_aliases;
  100.  
  101. extern void ofw_init(void);
  102.  
  103. extern void ofw_write(const char *str, const int len);
  104.  
  105. extern int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen);
  106. extern int ofw_get_proplen(const phandle device, const char *name);
  107. extern int ofw_next_property(const phandle device, char *previous, char *buf);
  108.  
  109. extern phandle ofw_get_child_node(const phandle node);
  110. extern phandle ofw_get_peer_node(const phandle node);
  111. extern phandle ofw_find_device(const char *name);
  112.  
  113. extern int ofw(ofw_args_t *arg);
  114. extern unsigned int ofw_get_address_cells(const phandle device);
  115. extern unsigned int ofw_get_size_cells(const phandle device);
  116. extern void *ofw_translate(const void *virt);
  117. extern int ofw_translate_failed(ofw_arg_t flag);
  118. extern void *ofw_claim(const void *virt, const int len);
  119. extern int ofw_map(const void *phys, const void *virt, const int size, const int mode);
  120. extern int ofw_memmap(memmap_t *map);
  121. extern int ofw_screen(screen_t *screen);
  122. extern int ofw_keyboard(keyboard_t *keyboard);
  123.  
  124. #endif
  125.