amiro-os / core / inc / aos_shell.h @ 1dd7edc7
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1 | e545e620 | Thomas Schöpping | /*
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2 | AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.
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3 | Copyright (C) 2016..2018 Thomas Schöpping et al.
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4 | |||
5 | This program is free software: you can redistribute it and/or modify
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6 | it under the terms of the GNU General Public License as published by
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7 | the Free Software Foundation, either version 3 of the License, or
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8 | (at your option) any later version.
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9 | |||
10 | This program is distributed in the hope that it will be useful,
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | GNU General Public License for more details.
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14 | |||
15 | You should have received a copy of the GNU General Public License
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16 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 | */
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18 | |||
19 | 53710ca3 | Marc Rothmann | /**
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20 | * @file aos_shell.h
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21 | * @brief Shell macros and structures.
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22 | *
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23 | * @addtogroup aos_shell
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24 | * @{
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25 | */
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26 | |||
27 | e545e620 | Thomas Schöpping | #ifndef _AMIROOS_SHELL_H_
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28 | #define _AMIROOS_SHELL_H_
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29 | |||
30 | ba516b61 | Thomas Schöpping | #include <aosconf.h> |
31 | #if (AMIROOS_CFG_SHELL_ENABLE == true) |
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32 | e545e620 | Thomas Schöpping | #include <hal.h> |
33 | #include <aos_types.h> |
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34 | |||
35 | /**
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36 | * @brief Shell event flag that is emitted when the thread starts.
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37 | */
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38 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_EVTFLAG_START ((eventflags_t)(1 << 0)) |
39 | e545e620 | Thomas Schöpping | |
40 | /**
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41 | * @brief Shell event flag that is emitted when a command is executed.
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42 | */
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43 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_EVTFLAG_EXEC ((eventflags_t)(1 << 1)) |
44 | e545e620 | Thomas Schöpping | |
45 | /**
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46 | * @brief Shell event flag that is emitted when a command execution finished.
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47 | */
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48 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_EVTFLAG_DONE ((eventflags_t)(1 << 2)) |
49 | e545e620 | Thomas Schöpping | |
50 | /**
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51 | * @brief Shell event flag that is emitted when the shread stops.
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52 | */
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53 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_EVTFLAG_EXIT ((eventflags_t)(1 << 3)) |
54 | e545e620 | Thomas Schöpping | |
55 | /**
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56 | * @brief Shell event flag that is emitted when an I/O error occurred.
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57 | */
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58 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_EVTFLAG_IOERROR ((eventflags_t)(1 << 4)) |
59 | e545e620 | Thomas Schöpping | |
60 | /**
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61 | * @brief Shell input configuration for replacing content by user input.
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62 | */
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63 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_CONFIG_INPUT_OVERWRITE (1 << 0) |
64 | e545e620 | Thomas Schöpping | |
65 | /**
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66 | * @brief Shell prompt configuration print a minimalistic prompt.
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67 | */
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68 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_CONFIG_PROMPT_MINIMAL (1 << 1) |
69 | e545e620 | Thomas Schöpping | |
70 | /**
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71 | * @brief Shell prompt configuration to additionally print the system uptime with the prompt.
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72 | */
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73 | ba516b61 | Thomas Schöpping | #define AOS_SHELL_CONFIG_PROMPT_UPTIME (1 << 2) |
74 | e545e620 | Thomas Schöpping | |
75 | /**
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76 | 8399aeae | Thomas Schöpping | * @brief Shell prompt configuration to additionally print the date and time with the prompt.
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77 | */
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78 | #define AOS_SHELL_CONFIG_PROMPT_DATETIME (2 << 2) |
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79 | |||
80 | /**
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81 | e545e620 | Thomas Schöpping | * @brief Shell prompt configuration to additionally print the system uptime with the prompt.
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82 | */
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83 | 8399aeae | Thomas Schöpping | #define AOS_SHELL_CONFIG_MATCH_CASE (1 << 4) |
84 | ba516b61 | Thomas Schöpping | |
85 | /**
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86 | * @brief Shell I/O channel flag whether the channel is attached to a list.
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87 | */
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88 | #define AOS_SHELLCHANNEL_ATTACHED (1 << 0) |
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89 | |||
90 | /**
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91 | * @brief Shell I/O channel flag whether the channel is enabled as input.
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92 | */
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93 | #define AOS_SHELLCHANNEL_INPUT_ENABLED (1 << 1) |
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94 | |||
95 | /**
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96 | * @brief Shell I/O channel flag whether the channel is enabled as output.
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97 | */
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98 | #define AOS_SHELLCHANNEL_OUTPUT_ENABLED (1 << 2) |
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99 | |||
100 | /*
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101 | * forward definitions
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102 | */
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103 | typedef struct aos_shellchannel AosShellChannel; |
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104 | typedef struct aos_shellstream AosShellStream; |
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105 | |||
106 | /**
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107 | * @brief AosShellChannel specific methods.
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108 | */
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109 | #define _aos_shell_channel_methods \
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110 | _base_asynchronous_channel_methods |
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111 | |||
112 | /**
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113 | * @brief AosShellChannel specific data.
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114 | */
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115 | #define _aos_shell_channel_data \
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116 | dd8738ea | Thomas Schöpping | /* pointer to a BaseAsynchronousChannel object */ \
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117 | BaseAsynchronousChannel* asyncchannel; \ |
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118 | ba516b61 | Thomas Schöpping | /* event listener for the associated BaseAsynchronousChannel */ \
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119 | event_listener_t listener; \ |
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120 | /* pointer to the next chennal in a AosShellStream */ \
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121 | AosShellChannel* next; \ |
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122 | /* flags related to the channel */ \
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123 | uint8_t flags; |
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124 | |||
125 | /**
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126 | * @extends BaseAsynchronousChannelVMT
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127 | *
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128 | * @brief AosShellChannel virtual methods table.
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129 | */
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130 | struct AosShellChannelVMT {
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131 | _aos_shell_channel_methods |
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132 | }; |
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133 | |||
134 | /**
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135 | * @extends BaseAsynchronousChannel
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136 | *
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137 | * @brief Shell channel class.
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138 | * @details This class implements an asynchronous I/O channel.
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139 | */
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140 | struct aos_shellchannel {
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141 | /** @brief Virtual Methods Table. */
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142 | const struct AosShellChannelVMT* vmt; |
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143 | _aos_shell_channel_data |
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144 | }; |
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145 | |||
146 | /**
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147 | * @brief AosShellStream methods.
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148 | */
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149 | #define _aos_shellstream_methods \
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150 | _base_sequential_stream_methods |
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151 | |||
152 | /**
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153 | * @brief AosShellStream data.
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154 | */
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155 | #define _aos_shellstream_data \
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156 | /* Pointer to the first channel in a list. */ \
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157 | AosShellChannel* channel; |
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158 | |||
159 | /**
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160 | * @extends BaseSequentialStream
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161 | *
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162 | * @brief AosShellStream virtual methods table.
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163 | */
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164 | struct AosShellStreamVMT {
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165 | _aos_shellstream_methods |
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166 | }; |
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167 | |||
168 | /**
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169 | * @extends BaseSequentialStream
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170 | *
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171 | * @brief Shell Stream class.
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172 | * @details This class implements an base sequential stream.
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173 | * @todo So far only output but no input is supported.
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174 | */
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175 | struct aos_shellstream {
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176 | const struct AosShellStreamVMT* vmt; |
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177 | _aos_shellstream_data |
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178 | }; |
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179 | e545e620 | Thomas Schöpping | |
180 | /**
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181 | * @brief Shell command calback type.
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182 | */
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183 | typedef int (*aos_shellcmdcb_t)(BaseSequentialStream* stream, int argc, char* argv[]); |
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184 | |||
185 | /**
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186 | * @brief Shell command structure.
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187 | */
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188 | typedef struct aos_shellcommand { |
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189 | /**
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190 | * @brief Command name.
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191 | */
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192 | const char* name; |
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193 | |||
194 | /**
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195 | * @brief Callback function.
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196 | */
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197 | aos_shellcmdcb_t callback; |
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198 | |||
199 | /**
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200 | * @brief Pointer to next command in a singly linked list.
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201 | */
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202 | struct aos_shellcommand* next;
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203 | ba516b61 | Thomas Schöpping | |
204 | e545e620 | Thomas Schöpping | } aos_shellcommand_t; |
205 | |||
206 | /**
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207 | * @brief Execution status of a shell command.
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208 | */
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209 | typedef struct aos_shellexecstatus { |
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210 | ba516b61 | Thomas Schöpping | /**
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211 | * @brief Pointer to the command that was executed.
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212 | */
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213 | aos_shellcommand_t* command; |
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214 | |||
215 | /**
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216 | * @brief Return value of the executed command.
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217 | */
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218 | int retval;
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219 | e545e620 | Thomas Schöpping | } aos_shellexecstatus_t; |
220 | |||
221 | /**
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222 | ba516b61 | Thomas Schöpping | * @brief Enumerator to encode shell actions.
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223 | */
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224 | typedef enum aos_shellaction { |
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225 | dd8738ea | Thomas Schöpping | AOS_SHELL_ACTION_NONE, |
226 | ba516b61 | Thomas Schöpping | AOS_SHELL_ACTION_READCHAR, |
227 | AOS_SHELL_ACTION_AUTOFILL, |
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228 | AOS_SHELL_ACTION_SUGGEST, |
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229 | AOS_SHELL_ACTION_INSERTTOGGLE, |
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230 | AOS_SHELL_ACTION_DELETEFORWARD, |
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231 | AOS_SHELL_ACTION_DELETEBACKWARD, |
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232 | AOS_SHELL_ACTION_RECALLLAST, |
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233 | AOS_SHELL_ACTION_CLEAR, |
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234 | AOS_SHELL_ACTION_CURSOR2START, |
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235 | AOS_SHELL_ACTION_CURSOR2END, |
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236 | AOS_SHELL_ACTION_CURSORLEFT, |
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237 | AOS_SHELL_ACTION_CURSORRIGHT, |
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238 | AOS_SHELL_ACTION_EXECUTE, |
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239 | AOS_SHELL_ACTION_ESCSTART, |
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240 | } aos_shellaction_t; |
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241 | |||
242 | /**
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243 | e545e620 | Thomas Schöpping | * @brief Shell structure.
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244 | */
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245 | typedef struct aos_shell { |
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246 | /**
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247 | * @brief Pointer to the thread object.
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248 | */
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249 | thread_t* thread; |
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250 | |||
251 | /**
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252 | * @brief Event source.
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253 | */
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254 | event_source_t eventSource; |
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255 | |||
256 | /**
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257 | ba516b61 | Thomas Schöpping | * @brief Struct for OS related events
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258 | e545e620 | Thomas Schöpping | */
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259 | ba516b61 | Thomas Schöpping | struct {
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260 | /**
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261 | * @brief Pointer to the OS' event source.
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262 | */
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263 | event_source_t* eventSource; |
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264 | |||
265 | /**
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266 | * @brief Listener for OS related events.
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267 | */
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268 | event_listener_t eventListener; |
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269 | } os; |
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270 | |||
271 | /**
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272 | * @brief Pointer to the first I/O channel.
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273 | */
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274 | AosShellStream stream; |
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275 | e545e620 | Thomas Schöpping | |
276 | /**
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277 | * @brief String to printed as prompt.
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278 | */
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279 | const char* prompt; |
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280 | |||
281 | /**
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282 | * @brief Pointer to the first element of the singly linked list of commands.
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283 | * @details Commands are ordered alphabetically in the list.
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284 | */
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285 | aos_shellcommand_t* commands; |
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286 | |||
287 | /**
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288 | * @brief Execution status of the most recent command.
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289 | */
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290 | aos_shellexecstatus_t execstatus; |
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291 | |||
292 | /**
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293 | * @brief Input buffer.
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294 | */
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295 | char* line;
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296 | |||
297 | /**
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298 | * @brief Size of the input buffer.
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299 | */
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300 | size_t linesize; |
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301 | |||
302 | /**
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303 | ba516b61 | Thomas Schöpping | * @brief Structure containing data for internal input parsing.
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304 | */
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305 | struct {
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306 | /**
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307 | * @brief The last action executed by the shell.
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308 | */
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309 | aos_shellaction_t lastaction; |
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310 | |||
311 | /**
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312 | * @brief Number of character in the current escape sequence.
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313 | */
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314 | uint8_t escp; |
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315 | |||
316 | /**
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317 | * @brief Buffer to store an escape sequence.
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318 | */
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319 | char escseq[5]; |
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320 | |||
321 | /**
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322 | * @brief Current curso position.
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323 | */
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324 | size_t cursorpos; |
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325 | |||
326 | /**
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327 | * @brief Current line width.
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328 | */
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329 | size_t lineend; |
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330 | |||
331 | /**
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332 | * @brief Flag whether there was input since the prompt was printed the last time.
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333 | */
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334 | bool noinput;
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335 | } inputdata; |
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336 | |||
337 | /**
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338 | e545e620 | Thomas Schöpping | * @brief Argument buffer.
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339 | */
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340 | char** arglist;
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341 | |||
342 | /**
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343 | * @brief Size of the argument buffer.
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344 | */
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345 | size_t arglistsize; |
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346 | |||
347 | /**
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348 | * @brief Configuration flags.
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349 | */
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350 | uint8_t config; |
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351 | } aos_shell_t; |
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352 | |||
353 | #ifdef __cplusplus
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354 | extern "C" { |
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355 | #endif
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356 | ba516b61 | Thomas Schöpping | void aosShellInit(aos_shell_t* shell, event_source_t* oseventsource, const char* prompt, char* line, size_t linesize, char** arglist, size_t arglistsize); |
357 | void aosShellStreamInit(AosShellStream* stream);
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358 | dd8738ea | Thomas Schöpping | void aosShellChannelInit(AosShellChannel* channel, BaseAsynchronousChannel* asyncchannel);
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359 | e545e620 | Thomas Schöpping | aos_status_t aosShellAddCommand(aos_shell_t* shell, aos_shellcommand_t* cmd); |
360 | aos_status_t aosShellRemoveCommand(aos_shell_t* shell, char* cmd, aos_shellcommand_t** removed);
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361 | ba516b61 | Thomas Schöpping | void aosShellStreamAddChannel(AosShellStream* stream, AosShellChannel* channel);
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362 | aos_status_t aosShellStreamRemoveChannel(AosShellStream* stream, AosShellChannel* channel); |
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363 | void aosShellChannelInputEnable(AosShellChannel* channel);
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364 | void aosShellChannelInputDisable( AosShellChannel* channel);
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365 | void aosShellChannelOutputEnable(AosShellChannel* channel);
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366 | void aosShellChannelOutputDisable(AosShellChannel* channel);
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367 | e545e620 | Thomas Schöpping | THD_FUNCTION(aosShellThread, shell); |
368 | #ifdef __cplusplus
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369 | } |
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370 | #endif
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371 | |||
372 | ba516b61 | Thomas Schöpping | #endif /* AMIROOS_CFG_SHELL_ENABLE == true */ |
373 | |||
374 | e545e620 | Thomas Schöpping | #endif /* _AMIROOS_SHELL_H_ */ |
375 | 53710ca3 | Marc Rothmann | |
376 | /** @} */ |