1 | /* |
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2 | * This program is free software; you can redistribute it and/or modify |
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3 | * it under the terms of the GNU General Public License as published by |
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4 | * the Free Software Foundation; either version 2 of the License, or |
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5 | * (at your option) any later version. |
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6 | * |
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7 | * This program is distributed in the hope that it will be useful, |
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8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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10 | * GNU General Public License for more details. |
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11 | * |
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12 | * You should have received a copy of the GNU General Public License |
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13 | * along with this program; if not, write to the Free Software |
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14 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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15 | * |
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16 | * Copyright (C) IBM Corp. 2005 |
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17 | * |
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18 | * Authors: Jimi Xenidis <jimix@watson.ibm.com> |
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19 | */ |
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20 | |
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21 | #include "ofh.h" |
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22 | #include <of-devtree.h> |
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23 | |
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24 | s32 |
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25 | ofh_peer(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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26 | { |
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27 | if (nargs == 1) { |
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28 | if (nrets == 1) { |
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29 | ofdn_t ph = argp[0]; |
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30 | s32 *sib_ph = &retp[0]; |
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31 | void *mem = ofd_mem(b); |
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32 | |
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33 | *sib_ph = ofd_node_peer(mem, ph); |
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34 | return OF_SUCCESS; |
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35 | } |
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36 | } |
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37 | return OF_FAILURE; |
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38 | } |
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39 | |
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40 | s32 |
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41 | ofh_child(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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42 | { |
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43 | if (nargs == 1) { |
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44 | if (nrets == 1) { |
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45 | ofdn_t ph = argp[0]; |
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46 | s32 *ch_ph = &retp[0]; |
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47 | void *mem = ofd_mem(b); |
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48 | |
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49 | *ch_ph = ofd_node_child(mem, ph); |
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50 | return OF_SUCCESS; |
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51 | } |
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52 | } |
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53 | return OF_FAILURE; |
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54 | } |
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55 | |
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56 | s32 |
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57 | ofh_parent(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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58 | { |
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59 | if (nargs == 1) { |
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60 | if (nrets == 1) { |
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61 | ofdn_t ph = argp[0]; |
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62 | s32 *parent_ph = &retp[0]; |
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63 | void *mem = ofd_mem(b); |
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64 | |
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65 | *parent_ph = ofd_node_parent(mem, ph); |
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66 | return OF_SUCCESS; |
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67 | } |
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68 | } |
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69 | return OF_FAILURE; |
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70 | } |
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71 | |
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72 | s32 |
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73 | ofh_instance_to_package(u32 nargs, u32 nrets, s32 argp[], s32 retp[], |
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74 | ulong b __attribute__ ((unused))) |
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75 | { |
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76 | if (nargs == 1) { |
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77 | if (nrets == 1) { |
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78 | struct ofh_ihandle *ih = |
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79 | (struct ofh_ihandle *)(ulong)argp[0]; |
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80 | s32 *p = &retp[0]; |
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81 | |
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82 | *p = (s32)ih->ofi_node; |
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83 | return OF_SUCCESS; |
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84 | } |
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85 | } |
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86 | return OF_FAILURE; |
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87 | } |
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88 | |
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89 | s32 |
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90 | ofh_getproplen(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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91 | { |
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92 | if (nargs == 2) { |
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93 | if (nrets == 1) { |
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94 | ofdn_t ph = argp[0]; |
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95 | const char *name = (const char *)(ulong)argp[1]; |
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96 | s32 *size = &retp[0]; |
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97 | void *mem = ofd_mem(b); |
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98 | |
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99 | *size = ofd_getproplen(mem, ph, name); |
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100 | if (*size >= 0) { |
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101 | return OF_SUCCESS; |
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102 | } |
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103 | } |
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104 | } |
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105 | return OF_FAILURE; |
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106 | } |
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107 | |
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108 | s32 |
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109 | ofh_getprop(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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110 | { |
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111 | if (nargs == 4) { |
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112 | if (nrets == 1) { |
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113 | ofdn_t ph = argp[0]; |
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114 | const char *name = (const char *)(ulong)argp[1]; |
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115 | void *buf = (void *)(ulong)argp[2]; |
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116 | ulong buflen = argp[3]; |
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117 | s32 *size = &retp[0]; |
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118 | void *mem = ofd_mem(b); |
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119 | |
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120 | *size = ofd_getprop(mem, ph, name, buf, buflen); |
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121 | if (*size > 0) { |
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122 | return OF_SUCCESS; |
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123 | } |
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124 | } |
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125 | } |
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126 | return OF_FAILURE; |
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127 | } |
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128 | |
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129 | s32 |
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130 | ofh_nextprop(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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131 | { |
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132 | if (nargs == 3) { |
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133 | if (nrets == 1) { |
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134 | ofdn_t ph = argp[0]; |
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135 | const char *prev = (const char *)(ulong)argp[1]; |
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136 | char *name = (char *)(ulong)argp[2]; |
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137 | s32 *flag = &retp[0]; |
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138 | void *mem = ofd_mem(b); |
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139 | |
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140 | *flag = ofd_nextprop(mem, ph, prev, name); |
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141 | if (*flag > 0) { |
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142 | *flag = 1; |
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143 | } |
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144 | return OF_SUCCESS; |
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145 | } |
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146 | } |
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147 | return OF_FAILURE; |
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148 | } |
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149 | |
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150 | s32 |
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151 | ofh_setprop(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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152 | { |
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153 | if (nargs == 4) { |
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154 | if (nrets == 1) { |
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155 | ofdn_t ph = argp[0]; |
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156 | const char *name = (const char *)(ulong)argp[1]; |
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157 | const void *buf = (void *)(ulong)argp[2]; |
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158 | ulong buflen = argp[3]; |
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159 | s32 *size = &retp[0]; |
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160 | void *mem = ofd_mem(b); |
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161 | |
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162 | *size = ofd_setprop(mem, ph, name, buf, buflen); |
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163 | return OF_SUCCESS; |
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164 | } |
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165 | } |
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166 | return OF_FAILURE; |
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167 | } |
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168 | |
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169 | s32 |
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170 | ofh_canon(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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171 | { |
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172 | if (nargs == 3) { |
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173 | if (nrets == 1) { |
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174 | const char *dev_spec = (const char *)(ulong)argp[0]; |
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175 | char *buf = (char *)(ulong)argp[1]; |
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176 | u32 sz = argp[2]; |
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177 | s32 *len = &retp[0]; |
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178 | void *mem = ofd_mem(b); |
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179 | ofdn_t ph; |
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180 | |
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181 | ph = ofd_node_find(mem, dev_spec); |
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182 | if (ph > 0) { |
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183 | *len = ofd_node_to_path(mem, ph, buf, sz); |
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184 | return OF_SUCCESS; |
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185 | } |
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186 | } |
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187 | } |
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188 | return OF_FAILURE; |
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189 | } |
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190 | |
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191 | s32 ofh_active_package = -1; |
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192 | |
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193 | s32 |
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194 | ofh_finddevice(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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195 | { |
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196 | if (nargs == 1) { |
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197 | if (nrets == 1) { |
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198 | s32 *ap = DRELA(&ofh_active_package, b); |
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199 | const char *devspec = (const char *)(ulong)argp[0]; |
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200 | s32 *ph = &retp[0]; |
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201 | void *mem = ofd_mem(b); |
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202 | |
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203 | /* good enuff */ |
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204 | if (devspec[0] == '\0') { |
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205 | if (*ap == -1) { |
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206 | *ph = -1; |
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207 | return OF_FAILURE; |
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208 | } |
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209 | *ph = *ap; |
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210 | } else { |
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211 | *ph = ofd_node_find(mem, devspec); |
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212 | if (*ph <= 0) { |
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213 | *ph = -1; |
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214 | return OF_FAILURE; |
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215 | } |
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216 | } |
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217 | *ap = *ph; |
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218 | return OF_SUCCESS; |
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219 | } |
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220 | } |
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221 | return OF_FAILURE; |
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222 | } |
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223 | |
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224 | s32 |
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225 | ofh_instance_to_path(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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226 | { |
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227 | if (nargs == 3) { |
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228 | if (nrets == 1) { |
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229 | struct ofh_ihandle *ih = |
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230 | (struct ofh_ihandle *)((ulong)argp[0]); |
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231 | char *buf = (char *)(ulong)argp[1]; |
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232 | u32 sz = argp[2]; |
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233 | s32 *len = &retp[0]; |
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234 | ofdn_t ph; |
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235 | void *mem = ofd_mem(b); |
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236 | |
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237 | ph = ih->ofi_node; |
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238 | if (ph > 0) { |
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239 | *len = ofd_node_to_path(mem, ph, buf, sz); |
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240 | return OF_SUCCESS; |
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241 | } |
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242 | } |
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243 | } |
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244 | return OF_FAILURE; |
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245 | } |
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246 | |
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247 | s32 |
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248 | ofh_package_to_path(u32 nargs, u32 nrets, s32 argp[], s32 retp[], ulong b) |
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249 | { |
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250 | if (nargs == 3) { |
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251 | if (nrets == 1) { |
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252 | ofdn_t ph = argp[0]; |
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253 | char *buf = (char *)(ulong)argp[1]; |
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254 | u32 sz = argp[2]; |
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255 | s32 *len = &retp[0]; |
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256 | void *mem = ofd_mem(b); |
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257 | |
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258 | if (ph > 0) { |
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259 | *len = ofd_node_to_path(mem, ph, buf, sz); |
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260 | return OF_SUCCESS; |
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261 | } |
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262 | } |
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263 | } |
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264 | return OF_FAILURE; |
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265 | } |
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266 | |
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267 | |
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268 | |
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