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annotate packages/services/power/common/current/include/power.h @ 3292:7f8e529b4d82 default tip

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Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.
author vae
date Wed, 29 Apr 2015 23:31:48 +0000
parents 74dbf4c3f2e1
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #ifndef CYGONCE_POWER_POWER_H
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2 # define CYGONCE_POWER_POWER_H
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3 //==========================================================================
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4 //
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5 // include/power.h
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6 //
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7 // Definitions of power management support
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8 //
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9 //==========================================================================
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10 // ####ECOSGPLCOPYRIGHTBEGIN####
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11 // -------------------------------------------
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12 // This file is part of eCos, the Embedded Configurable Operating System.
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13 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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14 //
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15 // eCos is free software; you can redistribute it and/or modify it under
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16 // the terms of the GNU General Public License as published by the Free
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17 // Software Foundation; either version 2 or (at your option) any later
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18 // version.
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19 //
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20 // eCos is distributed in the hope that it will be useful, but WITHOUT
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21 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23 // for more details.
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24 //
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25 // You should have received a copy of the GNU General Public License
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26 // along with eCos; if not, write to the Free Software Foundation, Inc.,
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27 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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28 //
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29 // As a special exception, if other files instantiate templates or use
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30 // macros or inline functions from this file, or you compile this file
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31 // and link it with other works to produce a work based on this file,
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32 // this file does not by itself cause the resulting work to be covered by
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33 // the GNU General Public License. However the source code for this file
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34 // must still be made available in accordance with section (3) of the GNU
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35 // General Public License v2.
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36 //
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37 // This exception does not invalidate any other reasons why a work based
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38 // on this file might be covered by the GNU General Public License.
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39 // -------------------------------------------
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40 // ####ECOSGPLCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): bartv
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45 // Contributors: bartv
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46 // Date: 2001-06-12
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47 //
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48 //
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49 //####DESCRIPTIONEND####
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50 //==========================================================================
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51
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52 #include <pkgconf/power.h>
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53 #include <cyg/infra/cyg_type.h>
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54 #include <cyg/hal/hal_tables.h>
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55
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56 #ifdef CYGPKG_POWER_THREAD
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57 #include <cyg/kernel/kapi.h> // CYGPKG_POWER_THREAD is active_if CYGPKG_KERNEL so
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58 // the kernel's headers are guaranteed to be available.
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59 #endif
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60
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61 #ifdef __cplusplus
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62 extern "C" {
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63 #endif
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64
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65 // The four defined modes of power operation.
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66 #define PowerMode_Min 0
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67 #define PowerMode_Active 0
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68 #define PowerMode_Idle 1
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69 #define PowerMode_Sleep 2
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70 #define PowerMode_Off 3
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71 #define PowerMode_Max 3
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72 typedef cyg_uint8 PowerMode;
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73
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74 // Whether a mode change is initiated globally or per-controller
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75 #define PowerModeChange_Controller 0
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76 #define PowerModeChange_ControllerNow 1
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77 #define PowerModeChange_Global 2
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78 typedef cyg_uint32 PowerModeChange;
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79
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80 // Some priorities.
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81 #define PowerPri_Early 1000
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82 #define PowerPri_Typical 5000
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83 #define PowerPri_Late 9000
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84
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85 typedef struct PowerController {
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86 void (*change_mode)(struct PowerController*, PowerMode, PowerModeChange);
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87 #ifdef CYGIMP_POWER_PROVIDE_STRINGS
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88 char* id;
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89 #endif
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90 #ifdef CYGIMP_POWER_PROVIDE_POLICY_DATA
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91 CYG_ADDRWORD policy_data;
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92 #endif
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93 PowerMode mode;
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94 PowerMode desired_mode;
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95 cyg_uint8 change_this;
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96 cyg_uint8 attached;
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97 } CYG_HAL_TABLE_TYPE PowerController;
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98
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99 // The table of power controllers, allowing application code
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100 // to access all of them.
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101 extern PowerController __POWER__[], __POWER_END__;
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102
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103 // There should always be a power controller for the cpu which can
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104 // be accessed by any client.
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105 extern PowerController power_controller_cpu;
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106
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107 // If a separate power management thread is being used, its handle
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108 // is exported so that other code can e.g. manipulate its priority
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109 #ifdef CYGPKG_POWER_THREAD
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110 extern cyg_handle_t power_thread_handle;
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111 #endif
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112
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113 // Inline functions and supporting data.
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114 extern PowerMode __power_mode;
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115 extern PowerMode __power_desired_mode;
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116 typedef void (*__power_policy_callback_t)(PowerController*, PowerMode, PowerMode, PowerMode, PowerMode);
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117 extern __power_policy_callback_t __power_policy_callback;
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118
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119 // This macro is overridden elsewhere in this package when defining linkable
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120 // extern (i.e. non-inline) versions of these functions.
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121 #ifndef POWER_INLINE
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122 # define POWER_INLINE extern inline
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123 #endif
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124
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125 POWER_INLINE PowerMode
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126 power_get_mode(void)
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127 {
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128 return __power_mode;
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129 }
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130
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131 POWER_INLINE PowerMode
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132 power_get_desired_mode(void)
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133 {
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134 return __power_desired_mode;
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135 }
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136
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137 POWER_INLINE PowerMode
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138 power_get_controller_mode(PowerController* controller)
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139 {
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140 return controller->mode;
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141 }
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142
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143 POWER_INLINE PowerMode
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144 power_get_controller_desired_mode(PowerController* controller)
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145 {
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146 return controller->desired_mode;
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147 }
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148
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149 POWER_INLINE void
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150 power_set_policy_callback(__power_policy_callback_t new_callback)
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151 {
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152 __power_policy_callback = new_callback;
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153 }
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154
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155 POWER_INLINE __power_policy_callback_t
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156 power_get_policy_callback(void)
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157 {
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158 return __power_policy_callback;
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159 }
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160
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161 #ifdef CYGIMP_POWER_PROVIDE_STRINGS
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162 POWER_INLINE const char*
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163 power_get_controller_id(PowerController* controller)
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164 {
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165 return controller->id;
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166 }
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167 #endif
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168
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169 #ifdef CYGIMP_POWER_PROVIDE_POLICY_DATA
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170 POWER_INLINE void
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171 power_set_controller_policy_data(PowerController* controller, CYG_ADDRWORD data)
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172 {
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173 controller->policy_data = data;
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174 }
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175
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176 POWER_INLINE CYG_ADDRWORD
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177 power_get_controller_policy_data(PowerController* controller)
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178 {
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179 return controller->policy_data;
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180 }
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181 #endif
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182
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183 POWER_INLINE cyg_bool
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184 power_get_controller_attached(PowerController* controller)
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185 {
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186 return controller->attached;
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187 }
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188
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189 POWER_INLINE void
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190 power_set_controller_attached(PowerController* controller, cyg_bool new_value)
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191 {
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192 controller->attached = new_value;
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193 }
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194
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195 POWER_INLINE void
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196 power_set_controller_mode_now(PowerController* controller, PowerMode new_mode)
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197 {
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198 controller->desired_mode = new_mode;
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199 if (controller->mode != controller->desired_mode) {
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200 (*controller->change_mode)(controller, new_mode, PowerModeChange_ControllerNow);
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201 }
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202 }
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203
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204 // Now for the non-inline functions.
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205 extern void power_set_controller_mode(PowerController*, PowerMode);
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206 extern void power_set_mode(PowerMode);
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207
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208 // Implementation support.
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209 #ifdef CYGIMP_POWER_PROVIDE_STRINGS
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210 # define POWER_CONTROLLER_ID(_id_) id: _id_,
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211 #else
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212 # define POWER_CONTROLLER_ID(_id_)
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213 #endif
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214 #ifdef CYGIMP_POWER_PROVIDE_POLICY_DATA
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215 # define POWER_CONTROLLER_POLICY_DATA policy_data: 0,
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216 #else
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217 # define POWER_CONTROLLER_POLICY_DATA
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218 #endif
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219
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220 #define POWER_CONTROLLER(_name_, _pri_, _id_, _fn_) \
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221 PowerController _name_ \
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222 CYG_HAL_TABLE_QUALIFIED_ENTRY(power, _pri_) = { \
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223 change_mode: _fn_, \
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224 POWER_CONTROLLER_ID(_id_) \
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225 POWER_CONTROLLER_POLICY_DATA \
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226 mode: PowerMode_Active, \
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227 desired_mode: PowerMode_Active, \
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228 change_this: 0, \
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229 attached: 1 \
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230 }
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231
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232 #define POWER_CONTROLLER_CPU(_id_, _fn_) \
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233 PowerController power_controller_cpu \
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234 CYG_HAL_TABLE_EXTRA(power) = { \
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235 change_mode: _fn_, \
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236 POWER_CONTROLLER_ID(_id_) \
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237 POWER_CONTROLLER_POLICY_DATA \
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238 mode: PowerMode_Active, \
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239 desired_mode: PowerMode_Active, \
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240 change_this: 0, \
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241 attached: 1, \
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242 }
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243
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244 #ifdef __cplusplus
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245 } // extern "C" {
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246 #endif
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247
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248 #endif // CYGONCE_POWER_POWER_H