1 | //services.h: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2015 |
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5 | * |
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6 | * This file is part of libroar a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * libroar is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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22 | * Boston, MA 02110-1301, USA. |
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23 | * |
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24 | * NOTE for everyone want's to change something and send patches: |
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25 | * read README and HACKING! There a addition information on |
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26 | * the license of this document you need to read before you send |
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27 | * any patches. |
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28 | * |
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29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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30 | * or libpulse*: |
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31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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32 | * and are therefore GPL. Because of this it may be illigal to use |
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33 | * them with any software that uses libesd, libartsc or libpulse*. |
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34 | */ |
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35 | |
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36 | #ifndef _LIBROARSERVICES_H_ |
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37 | #define _LIBROARSERVICES_H_ |
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38 | |
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39 | #include "libroar.h" |
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40 | |
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41 | enum roar_service_num { |
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42 | // Error value in case any function returns this type. |
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43 | // roar_error must be set on return. |
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44 | ROAR_SERVICE_NUM_ERROR = -1, |
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45 | #define ROAR_SERVICE_NUM_ERROR ROAR_SERVICE_NUM_ERROR |
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46 | // reserved for future use. |
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47 | ROAR_SERVICE_NUM_DEFAULT = 0, |
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48 | //#define ROAR_SERVICE_NUM_DEFAULT ROAR_SERVICE_NUM_DEFAULT |
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49 | // current number of objects. |
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50 | ROAR_SERVICE_NUM_CURRENT = 1, |
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51 | #define ROAR_SERVICE_NUM_CURRENT ROAR_SERVICE_NUM_CURRENT |
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52 | // minumum number of objects. Optional. |
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53 | ROAR_SERVICE_NUM_MIN, |
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54 | #define ROAR_SERVICE_NUM_MIN ROAR_SERVICE_NUM_MIN |
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55 | // maximum number of objects. Optional. |
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56 | ROAR_SERVICE_NUM_MAX, |
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57 | #define ROAR_SERVICE_NUM_MAX ROAR_SERVICE_NUM_MAX |
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58 | // average number of objects. Optional. |
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59 | ROAR_SERVICE_NUM_AVG, |
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60 | #define ROAR_SERVICE_NUM_AVG ROAR_SERVICE_NUM_AVG |
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61 | // Hint for buffer size used to list(). list() can still return 'buffer to short'. |
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62 | ROAR_SERVICE_NUM_BUFFER, |
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63 | #define ROAR_SERVICE_NUM_BUFFER ROAR_SERVICE_NUM_BUFFER |
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64 | }; |
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65 | |
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66 | // clients: |
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67 | #define ROAR_SERVICE_CLIENT_NAME "client" |
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68 | #define ROAR_SERVICE_CLIENT_ABI "1.0beta9-pr1" |
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69 | struct roar_client; |
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70 | struct roar_service_client { |
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71 | // get list of client IDs. |
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72 | // buffer is passed as ids, buffer size (in elements) is passed as len. |
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73 | // returns the number of elements stored in ids or -1 on error. |
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74 | ssize_t (*list)(int * ids, size_t len); |
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75 | // get the number of clients. See also comments above on what. |
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76 | ssize_t (*num)(enum roar_service_num what); |
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77 | // get a client by ID. The object returned is a copy and must not be motified. |
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78 | int (*get)(int id, struct roar_client * client); |
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79 | // kick a client by ID. The reason for the kick is stored in error and msg. |
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80 | // if msg is NULL it defaults to roar_error2str(error). |
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81 | int (*kick)(int id, int error, const char * msg); |
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82 | // return status of client as returned by CPI's status() callback. |
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83 | int (*status)(int id); |
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84 | |
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85 | // optional functions follow: |
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86 | |
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87 | // set PID, UID and/or GID for client. |
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88 | // if any ID is -1 the old value is not touched if clear is false. |
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89 | // if clear is true IDs passed as -1 are reset to 'not set'. |
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90 | // if altering IDs changes the permissions of a given client is up to the |
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91 | // provider. |
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92 | int (*set_ids)(int id, int clear, int pid, int uid, int gid); |
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93 | // set the name of the client. |
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94 | // the name is copied within this call so the bufer holding it can be freed. |
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95 | int (*set_name)(int id, const char * name); |
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96 | // this will change the protocol of the client. |
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97 | int (*set_proto)(int id, int proto); |
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98 | // this execes the stream. |
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99 | // the stream must be owned by the client. |
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100 | // if stream is -1 the client is execed. |
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101 | // This will result in the client be completly reset to a state |
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102 | // as directly after accept(). This must be followed by a call to set_proto(). |
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103 | int (*exec)(int id, int stream); |
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104 | }; |
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105 | |
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106 | // streams: |
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107 | struct roar_stream_info; |
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108 | struct roar_stream_rpg; |
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109 | struct roar_service_stream { |
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110 | // get list of stream IDs. |
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111 | // buffer is passed as ids, buffer size (in elements) is passed as len. |
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112 | // returns the number of elements stored in ids or -1 on error. |
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113 | ssize_t (*list)(int * ids, size_t len); |
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114 | // get the number of streams. See also comments above on what. |
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115 | ssize_t (*num)(enum roar_service_num what); |
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116 | // get a stream by ID. The object returned is a copy and must not be motified. |
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117 | int (*get)(int id, struct roar_stream * s, struct roar_stream_info * info); |
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118 | // kick a stream by ID. The reason for the kick is stored in error and msg. |
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119 | // if msg is NULL it defaults to roar_error2str(error). |
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120 | int (*kick)(int id, int error, const char * msg); |
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121 | |
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122 | // optional functions follow: |
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123 | |
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124 | // create a new stream. |
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125 | // if parent is set to -1 a normal stream is created. |
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126 | // if it is set to the ID of an existing stream it is created as child/virtual stream. |
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127 | // if mixer is set to -1 the default mixer is used. |
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128 | int (*new)(const struct roar_audio_info * info, int dir, int parent, int mixer); |
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129 | // get the ID of the client owning the stream. |
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130 | int (*get_client)(int id); |
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131 | // set the owner of the stream. |
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132 | // if the stream is already owned by a client it is moved if possible. |
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133 | int (*set_client)(int id, int client); |
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134 | // set role of stream. |
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135 | // if role is passed as -1 the role is cleared. |
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136 | int (*set_role)(int id, int role); |
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137 | // alter stream flags. |
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138 | int (*set_flag)(int id, uint32_t flags, int action); |
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139 | // get name of stream. |
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140 | // the buffer returned in *name must be freed using roar_mm_free(). |
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141 | int (*get_name)(int id, char ** name); |
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142 | // set name of stream. |
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143 | // stream name will be copied so the buffer can be freed after this call. |
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144 | // passing NULL will unset the stream name. |
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145 | int (*set_name)(int id, const char * name); |
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146 | // set volume and rpg settings. |
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147 | // If mixer or rpg is NULL the corresponding setting is not touched. |
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148 | // if both are NULL this does nothing. |
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149 | int (*set_volume)(int id, const struct roar_mixer_settings * mixer, const struct roar_stream_rpg * rpg); |
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150 | }; |
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151 | |
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152 | // about: |
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153 | #define ROAR_SERVICE_ABOUT_NAME "about" |
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154 | #define ROAR_SERVICE_ABOUT_ABI "1.0beta9" |
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155 | struct roar_service_about { |
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156 | int (*show)(const struct roar_dl_libraryname * libname); |
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157 | }; |
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158 | |
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159 | // help: |
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160 | #define ROAR_SERVICE_HELP_NAME "help" |
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161 | #define ROAR_SERVICE_HELP_ABI "1.0beta9" |
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162 | struct roar_service_help { |
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163 | int (*show)(const struct roar_dl_libraryname * libname, const char * topic); |
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164 | }; |
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165 | |
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166 | // prefs: |
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167 | // procctl: |
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168 | #define ROAR_SERVICE_PROCCTL_ERROR ((uint_least32_t)0xFFFFFFFFUL) |
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169 | #define ROAR_SERVICE_PROCCTL_NONE ((uint_least32_t)0x00000000UL) |
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170 | #define ROAR_SERVICE_PROCCTL_ALL ((uint_least32_t)0x7FFFFFFFUL) |
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171 | #define ROAR_SERVICE_PROCCTL_CONFIG ((uint_least32_t)0x00000001UL) |
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172 | #define ROAR_SERVICE_PROCCTL_LOGFILE ((uint_least32_t)0x00000002UL) |
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173 | #define ROAR_SERVICE_PROCCTL_PIDFILE ((uint_least32_t)0x00000004UL) |
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174 | |
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175 | struct roar_service_procctl { |
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176 | // terminate the process. |
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177 | // rv is the return POSIX return code. |
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178 | // a value of zero means no error. |
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179 | // a value of -1 means the provider should decide the value |
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180 | // based on the other parameters. |
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181 | // a value smaller than -1 is not allowed. |
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182 | // all other values indicate some kind of error. |
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183 | // error and msg give a closer information why the process is terminated. |
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184 | // those can be be used in case rv is set to -1. they can also be printed |
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185 | // or logged by the the provider for later inspection. |
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186 | int (*exit)(int rv, int error, const char * msg); |
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187 | |
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188 | // optional functions follow: |
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189 | |
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190 | // restart the process. |
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191 | int (*restart)(void); |
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192 | // daemonize the process. |
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193 | // the process is moved into background, detaching from the console. |
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194 | int (*daemonize)(void); |
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195 | // reload config or other parts. See above. |
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196 | int (*reload)(uint_least32_t what); |
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197 | // reopen logfiles or other parts. See above. |
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198 | int (*reopen)(uint_least32_t what); |
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199 | }; |
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200 | |
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201 | // queue: |
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202 | struct roar_service_queue { |
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203 | ssize_t (*list)(int * ids, size_t len); |
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204 | ssize_t (*num)(enum roar_service_num what); |
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205 | int (*get_name)(int id, char ** name); |
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206 | // status? |
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207 | int (*play)(int id); |
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208 | int (*stop)(int id); |
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209 | int (*pause)(int id, int how); |
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210 | int (*next)(int id); |
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211 | int (*prev)(int id); |
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212 | }; |
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213 | |
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214 | // GPIO/Sensors: |
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215 | #define ROAR_SERVICE_GPIO_NAME "gpio" |
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216 | #define ROAR_SERVICE_GPIO_ABI "1.0beta10-pr0" |
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217 | |
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218 | #define ROAR_SERVICE_GPIO_FINPUT ((uint_least32_t)0x00000001UL) |
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219 | #define ROAR_SERVICE_GPIO_FOUTPUT ((uint_least32_t)0x00000002UL) |
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220 | #define ROAR_SERVICE_GPIO_FPULLDOWN ((uint_least32_t)0x00000004UL) |
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221 | #define ROAR_SERVICE_GPIO_FPULLUP ((uint_least32_t)0x00000008UL) |
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222 | #define ROAR_SERVICE_GPIO_FCACHED ((uint_least32_t)0x00000010UL) |
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223 | |
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224 | enum roar_service_gpio_type { |
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225 | ROAR_SERVICE_GPIO_TERROR = -1, |
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226 | ROAR_SERVICE_GPIO_TUNKNOWN = 0, |
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227 | ROAR_SERVICE_GPIO_TINT, |
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228 | ROAR_SERVICE_GPIO_TENUM, |
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229 | ROAR_SERVICE_GPIO_TBOOL, |
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230 | ROAR_SERVICE_GPIO_TTRISTATE, |
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231 | ROAR_SERVICE_GPIO_TFLOAT |
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232 | }; |
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233 | |
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234 | enum roar_service_gpio_state { |
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235 | ROAR_SERVICE_GPIO_SERROR = -1, |
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236 | ROAR_SERVICE_GPIO_SUNKNOWN = 0, |
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237 | ROAR_SERVICE_GPIO_SFREE, |
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238 | ROAR_SERVICE_GPIO_SUNINITED, |
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239 | ROAR_SERVICE_GPIO_SREADY, |
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240 | ROAR_SERVICE_GPIO_SBUSY, |
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241 | ROAR_SERVICE_GPIO_SDISCONNECTED, |
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242 | ROAR_SERVICE_GPIO_SDISABLED, |
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243 | ROAR_SERVICE_GPIO_SINERROR |
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244 | }; |
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245 | |
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246 | struct roar_service_gpio_port { |
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247 | int id; |
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248 | const char * name; |
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249 | uint_least32_t mode; |
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250 | const char * unit; |
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251 | enum roar_service_gpio_type type; |
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252 | enum roar_service_gpio_state state; |
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253 | int irange_min; |
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254 | int irange_max; |
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255 | double frange_min; |
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256 | double frange_max; |
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257 | }; |
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258 | |
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259 | struct roar_service_gpio { |
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260 | // get list of gpio IDs. |
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261 | // buffer is passed as ids, buffer size (in elements) is passed as len. |
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262 | // returns the number of elements stored in ids or -1 on error. |
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263 | ssize_t (*list)(int * ids, size_t len); |
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264 | // get the number of gpios. See also comments above on what. |
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265 | ssize_t (*num)(enum roar_service_num what); |
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266 | // get a gpio by ID. The object returned is a copy and must not be motified or freed. |
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267 | int (*get)(int id, struct roar_service_gpio_port * port); |
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268 | |
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269 | // Sets up ports. |
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270 | // the controler should set mode and state of port to given target mode and state. |
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271 | // If id is given as -1 this is about the controler. mode MUST NOT contain any |
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272 | // flags beside ROAR_SERVICE_GPIO_FCACHED. If ROAR_SERVICE_GPIO_FCACHED |
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273 | // is set it is applied all ports. |
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274 | int (*setup)(int id, uint_least32_t mode, enum roar_service_gpio_state state); |
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275 | |
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276 | // get value of port (input or output) as int or float. |
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277 | int (*get_int)(int id); |
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278 | double (*get_float)(int id); |
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279 | |
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280 | // set value of output (as int or float). |
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281 | int (*set_int)(int id, int val); |
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282 | int (*set_float)(int id, double val); |
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283 | |
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284 | // convert the value val as returned by the port to the base unit of the port. |
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285 | // if rev is set converst from the base unit to the value as used by the port. |
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286 | int (*convert_int)(int id, int val, int rev); |
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287 | double (*convert_float)(int id, double val, int rev); |
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288 | }; |
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289 | |
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290 | #endif |
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291 | |
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292 | //ll |
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