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1893 | jermar | 1 | /* |
2 | * Copyright (C) 2006 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1894 | jermar | 29 | #ifndef KERN_OFW_TREE_H_ |
30 | #define KERN_OFW_TREE_H_ |
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1893 | jermar | 31 | |
1894 | jermar | 32 | #include <arch/types.h> |
1895 | jermar | 33 | #include <typedefs.h> |
1893 | jermar | 34 | |
35 | #define OFW_TREE_PROPERTY_MAX_NAMELEN 32 |
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36 | |||
37 | typedef struct ofw_tree_node ofw_tree_node_t; |
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38 | typedef struct ofw_tree_property ofw_tree_property_t; |
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39 | |||
1894 | jermar | 40 | /** Memory representation of OpenFirmware device tree node. */ |
1893 | jermar | 41 | struct ofw_tree_node { |
42 | ofw_tree_node_t *parent; |
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43 | ofw_tree_node_t *peer; |
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44 | ofw_tree_node_t *child; |
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45 | |||
1907 | jermar | 46 | uint32_t node_handle; /**< Old OpenFirmware node handle. */ |
1895 | jermar | 47 | |
1907 | jermar | 48 | char *da_name; /**< Disambigued name. */ |
49 | |||
50 | unsigned properties; /**< Number of properties. */ |
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1893 | jermar | 51 | ofw_tree_property_t *property; |
1909 | jermar | 52 | |
53 | /** |
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54 | * Pointer to a structure representing respective device. |
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55 | * Its semantics is device dependent. |
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56 | */ |
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57 | void *device; |
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1893 | jermar | 58 | }; |
59 | |||
1894 | jermar | 60 | /** Memory representation of OpenFirmware device tree node property. */ |
1893 | jermar | 61 | struct ofw_tree_property { |
62 | char name[OFW_TREE_PROPERTY_MAX_NAMELEN]; |
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63 | size_t size; |
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64 | void *value; |
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65 | }; |
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66 | |||
1896 | jermar | 67 | /* |
68 | * Definition of 'reg' and 'ranges' properties for various buses. |
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69 | */ |
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70 | |||
71 | struct ofw_fhc_reg { |
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72 | uint64_t addr; |
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73 | uint32_t size; |
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74 | } __attribute__ ((packed)); |
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75 | typedef struct ofw_fhc_reg ofw_fhc_reg_t; |
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76 | |||
77 | struct ofw_fhc_range { |
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78 | uint64_t child_base; |
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79 | uint64_t parent_base; |
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80 | uint32_t size; |
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81 | } __attribute__ ((packed)); |
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82 | typedef struct ofw_fhc_range ofw_fhc_range_t; |
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83 | |||
84 | struct ofw_central_reg { |
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85 | uint64_t addr; |
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86 | uint32_t size; |
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87 | } __attribute__ ((packed)); |
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88 | typedef struct ofw_central_reg ofw_central_reg_t; |
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89 | |||
90 | struct ofw_central_range { |
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91 | uint64_t child_base; |
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92 | uint64_t parent_base; |
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93 | uint32_t size; |
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94 | } __attribute__ ((packed)); |
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95 | typedef struct ofw_central_range ofw_central_range_t; |
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96 | |||
97 | struct ofw_ebus_reg { |
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98 | uint32_t space; |
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99 | uint32_t addr; |
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100 | uint32_t size; |
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101 | } __attribute__ ((packed)); |
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102 | typedef struct ofw_ebus_reg ofw_ebus_reg_t; |
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103 | |||
104 | struct ofw_ebus_range { |
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105 | uint32_t child_space; |
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106 | uint32_t child_base; |
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107 | uint32_t parent_space; |
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108 | uint64_t parent_base; /* group phys.mid and phys.lo together */ |
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109 | uint32_t size; |
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110 | } __attribute__ ((packed)); |
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111 | typedef struct ofw_ebus_range ofw_ebus_range_t; |
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112 | |||
1909 | jermar | 113 | struct ofw_ebus_intr_map { |
114 | uint32_t space; |
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115 | uint32_t addr; |
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116 | uint32_t intr; |
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117 | uint32_t controller_handle; |
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1912 | jermar | 118 | uint32_t controller_ino; |
1909 | jermar | 119 | } __attribute__ ((packed)); |
120 | typedef struct ofw_ebus_intr_map ofw_ebus_intr_map_t; |
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121 | |||
122 | struct ofw_ebus_intr_mask { |
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123 | uint32_t space_mask; |
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124 | uint32_t addr_mask; |
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125 | uint32_t intr_mask; |
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126 | } __attribute__ ((packed)); |
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127 | typedef struct ofw_ebus_intr_mask ofw_ebus_intr_mask_t; |
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128 | |||
1896 | jermar | 129 | struct ofw_pci_reg { |
1909 | jermar | 130 | uint32_t space; /* needs to be masked to obtain pure space id */ |
1896 | jermar | 131 | uint64_t addr; /* group phys.mid and phys.lo together */ |
132 | uint64_t size; |
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133 | } __attribute__ ((packed)); |
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134 | typedef struct ofw_pci_reg ofw_pci_reg_t; |
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135 | |||
136 | struct ofw_pci_range { |
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137 | uint32_t space; |
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138 | uint64_t child_base; /* group phys.mid and phys.lo together */ |
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139 | uint64_t parent_base; |
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140 | uint64_t size; |
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141 | } __attribute__ ((packed)); |
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142 | typedef struct ofw_pci_range ofw_pci_range_t; |
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143 | |||
1898 | jermar | 144 | struct ofw_upa_reg { |
145 | uint64_t addr; |
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146 | uint64_t size; |
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1896 | jermar | 147 | } __attribute__ ((packed)); |
1898 | jermar | 148 | typedef struct ofw_upa_reg ofw_upa_reg_t; |
1896 | jermar | 149 | |
1895 | jermar | 150 | extern void ofw_tree_init(ofw_tree_node_t *root); |
151 | extern void ofw_tree_print(void); |
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152 | extern const char *ofw_tree_node_name(const ofw_tree_node_t *node); |
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153 | extern ofw_tree_node_t *ofw_tree_lookup(const char *path); |
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1896 | jermar | 154 | extern ofw_tree_property_t *ofw_tree_getprop(const ofw_tree_node_t *node, const char *name); |
1899 | jermar | 155 | extern ofw_tree_node_t *ofw_tree_find_child(ofw_tree_node_t *node, const char *name); |
156 | extern ofw_tree_node_t *ofw_tree_find_child_by_device_type(ofw_tree_node_t *node, const char *device_type); |
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157 | extern ofw_tree_node_t *ofw_tree_find_peer_by_device_type(ofw_tree_node_t *node, const char *device_type); |
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1908 | jermar | 158 | extern ofw_tree_node_t *ofw_tree_find_node_by_handle(ofw_tree_node_t *root, uint32_t handle); |
1895 | jermar | 159 | |
1896 | jermar | 160 | extern bool ofw_fhc_apply_ranges(ofw_tree_node_t *node, ofw_fhc_reg_t *reg, uintptr_t *pa); |
161 | extern bool ofw_central_apply_ranges(ofw_tree_node_t *node, ofw_central_reg_t *reg, uintptr_t *pa); |
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162 | extern bool ofw_ebus_apply_ranges(ofw_tree_node_t *node, ofw_ebus_reg_t *reg, uintptr_t *pa); |
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163 | extern bool ofw_pci_apply_ranges(ofw_tree_node_t *node, ofw_pci_reg_t *reg, uintptr_t *pa); |
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1898 | jermar | 164 | extern bool ofw_upa_apply_ranges(ofw_tree_node_t *node, ofw_upa_reg_t *reg, uintptr_t *pa); |
1896 | jermar | 165 | |
1897 | jermar | 166 | extern bool ofw_pci_reg_absolutize(ofw_tree_node_t *node, ofw_pci_reg_t *reg, ofw_pci_reg_t *out); |
167 | |||
1912 | jermar | 168 | extern bool ofw_fhc_map_interrupt(ofw_tree_node_t *node, ofw_fhc_reg_t *reg, uint32_t interrupt, int *inr); |
169 | extern bool ofw_ebus_map_interrupt(ofw_tree_node_t *node, ofw_ebus_reg_t *reg, uint32_t interrupt, int *inr); |
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170 | extern bool ofw_pci_map_interrupt(ofw_tree_node_t *node, ofw_pci_reg_t *reg, int ino, int *inr); |
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1909 | jermar | 171 | |
1893 | jermar | 172 | #endif |