Add AX.25 frame encoding support
This commit is contained in:
Manolis Surligas
parent
e9c6f36f86
commit
75289e11d5
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@ -0,0 +1,648 @@
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<?xml version='1.0' encoding='utf-8'?>
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<?grc format='1' created='3.7.10'?>
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<flow_graph>
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<timestamp>Wed Mar 2 18:13:41 2016</timestamp>
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<block>
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||||
<key>options</key>
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||||
<param>
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<key>author</key>
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<value></value>
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||||
</param>
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||||
<param>
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<key>window_size</key>
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<value></value>
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</param>
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||||
<param>
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||||
<key>category</key>
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||||
<value>Custom</value>
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||||
</param>
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||||
<param>
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||||
<key>comment</key>
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||||
<value></value>
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||||
</param>
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||||
<param>
|
||||
<key>description</key>
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||||
<value></value>
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||||
</param>
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||||
<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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||||
<param>
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<key>_coordinate</key>
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<value>(8, 8)</value>
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</param>
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||||
<param>
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<key>_rotation</key>
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<value>0</value>
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||||
</param>
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||||
<param>
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||||
<key>generate_options</key>
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<value>qt_gui</value>
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</param>
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||||
<param>
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||||
<key>hier_block_src_path</key>
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<value>.:</value>
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</param>
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<param>
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<key>id</key>
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<value>ax25_example</value>
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</param>
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<param>
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<key>max_nouts</key>
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<value>0</value>
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</param>
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<param>
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<key>qt_qss_theme</key>
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<value></value>
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</param>
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<param>
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<key>realtime_scheduling</key>
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<value></value>
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</param>
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<param>
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<key>run_command</key>
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<value>{python} -u {filename}</value>
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</param>
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<param>
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<key>run_options</key>
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<value>prompt</value>
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</param>
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||||
<param>
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<key>run</key>
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<value>True</value>
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</param>
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<param>
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<key>thread_safe_setters</key>
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<value></value>
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</param>
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<param>
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<key>title</key>
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<value></value>
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||||
</param>
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||||
</block>
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||||
<block>
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||||
<key>variable</key>
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||||
<param>
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||||
<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(216, 109)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>id</key>
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<value>array</value>
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</param>
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<param>
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<key>value</key>
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<value>[0x0, 0x1, 0x2, 0x3]</value>
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</param>
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</block>
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<block>
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||||
<key>variable</key>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(8, 160)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>id</key>
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<value>samp_rate</value>
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</param>
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<param>
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<key>value</key>
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<value>32000</value>
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</param>
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</block>
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<block>
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||||
<key>blocks_message_debug</key>
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<param>
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<key>alias</key>
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<value></value>
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</param>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>affinity</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>0</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(664, 224)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>id</key>
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<value>blocks_message_debug_0</value>
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</param>
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</block>
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<block>
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<key>blocks_message_strobe</key>
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<param>
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<key>alias</key>
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<value></value>
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</param>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>affinity</key>
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<value></value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(120, 397)</value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>id</key>
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<value>blocks_message_strobe_0</value>
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</param>
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<param>
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<key>maxoutbuf</key>
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<value>0</value>
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</param>
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<param>
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<key>msg</key>
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<value>pmt.init_u8vector(30, [0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 6, 7, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,8, 9])</value>
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</param>
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<param>
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<key>minoutbuf</key>
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<value>0</value>
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</param>
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<param>
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<key>period</key>
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<value>100</value>
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</param>
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</block>
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<block>
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<key>qtgui_time_sink_x</key>
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<param>
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<key>autoscale</key>
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<value>False</value>
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</param>
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<param>
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<key>alias</key>
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<value></value>
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</param>
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<param>
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<key>comment</key>
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<value></value>
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</param>
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<param>
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<key>ctrlpanel</key>
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<value>True</value>
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</param>
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<param>
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<key>affinity</key>
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<value></value>
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</param>
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<param>
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<key>entags</key>
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<value>True</value>
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</param>
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<param>
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<key>_enabled</key>
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<value>True</value>
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</param>
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<param>
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<key>_coordinate</key>
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<value>(856, 390)</value>
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</param>
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<param>
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<key>gui_hint</key>
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<value></value>
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</param>
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<param>
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<key>_rotation</key>
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<value>0</value>
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</param>
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<param>
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<key>grid</key>
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<value>True</value>
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</param>
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<param>
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<key>id</key>
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<value>qtgui_time_sink_x_0</value>
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</param>
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<param>
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<key>legend</key>
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<value>True</value>
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</param>
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<param>
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<key>alpha1</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color1</key>
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<value>"blue"</value>
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</param>
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<param>
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<key>label1</key>
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<value></value>
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</param>
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<param>
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<key>marker1</key>
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<value>2</value>
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</param>
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<param>
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<key>style1</key>
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<value>1</value>
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</param>
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<param>
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<key>width1</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha10</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color10</key>
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<value>"blue"</value>
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</param>
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<param>
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<key>label10</key>
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<value></value>
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</param>
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<param>
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<key>marker10</key>
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<value>-1</value>
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</param>
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<param>
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<key>style10</key>
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<value>1</value>
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</param>
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<param>
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<key>width10</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha2</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color2</key>
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<value>"red"</value>
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</param>
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<param>
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<key>label2</key>
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<value></value>
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</param>
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<param>
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<key>marker2</key>
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<value>-1</value>
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</param>
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<param>
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<key>style2</key>
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<value>1</value>
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</param>
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<param>
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<key>width2</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha3</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color3</key>
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<value>"green"</value>
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</param>
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<param>
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<key>label3</key>
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<value></value>
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</param>
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<param>
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<key>marker3</key>
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<value>-1</value>
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</param>
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<param>
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<key>style3</key>
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<value>1</value>
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</param>
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<param>
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<key>width3</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha4</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color4</key>
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<value>"black"</value>
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</param>
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<param>
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<key>label4</key>
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<value></value>
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</param>
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<param>
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<key>marker4</key>
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<value>-1</value>
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</param>
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<param>
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<key>style4</key>
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<value>1</value>
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</param>
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<param>
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<key>width4</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha5</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color5</key>
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<value>"cyan"</value>
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</param>
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<param>
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<key>label5</key>
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<value></value>
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</param>
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<param>
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<key>marker5</key>
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<value>-1</value>
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</param>
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<param>
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<key>style5</key>
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<value>1</value>
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</param>
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<param>
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<key>width5</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha6</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color6</key>
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<value>"magenta"</value>
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</param>
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<param>
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<key>label6</key>
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<value></value>
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</param>
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<param>
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<key>marker6</key>
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<value>-1</value>
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</param>
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<param>
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<key>style6</key>
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<value>1</value>
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</param>
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<param>
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<key>width6</key>
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<value>1</value>
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</param>
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<param>
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<key>alpha7</key>
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<value>1.0</value>
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</param>
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<param>
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<key>color7</key>
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<value>"yellow"</value>
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</param>
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<param>
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<key>label7</key>
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<value></value>
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</param>
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<param>
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<key>marker7</key>
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<value>-1</value>
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</param>
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<param>
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<key>style7</key>
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<value>1</value>
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</param>
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<param>
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<key>width7</key>
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<value>1</value>
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</param>
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<param>
|
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<key>alpha8</key>
|
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<value>1.0</value>
|
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</param>
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<param>
|
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<key>color8</key>
|
||||
<value>"dark red"</value>
|
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</param>
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<param>
|
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<key>label8</key>
|
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<value></value>
|
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</param>
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<param>
|
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<key>marker8</key>
|
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<value>-1</value>
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||||
</param>
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<param>
|
||||
<key>style8</key>
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||||
<value>1</value>
|
||||
</param>
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<param>
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<key>width8</key>
|
||||
<value>1</value>
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</param>
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<param>
|
||||
<key>alpha9</key>
|
||||
<value>1.0</value>
|
||||
</param>
|
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<param>
|
||||
<key>color9</key>
|
||||
<value>"dark green"</value>
|
||||
</param>
|
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<param>
|
||||
<key>label9</key>
|
||||
<value></value>
|
||||
</param>
|
||||
<param>
|
||||
<key>marker9</key>
|
||||
<value>-1</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>style9</key>
|
||||
<value>1</value>
|
||||
</param>
|
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<param>
|
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<key>width9</key>
|
||||
<value>1</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>name</key>
|
||||
<value>""</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>nconnections</key>
|
||||
<value>1</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>size</key>
|
||||
<value>1024</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>srate</key>
|
||||
<value>samp_rate</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>tr_chan</key>
|
||||
<value>0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>tr_delay</key>
|
||||
<value>0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>tr_level</key>
|
||||
<value>0.0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>tr_mode</key>
|
||||
<value>qtgui.TRIG_MODE_FREE</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>tr_slope</key>
|
||||
<value>qtgui.TRIG_SLOPE_POS</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>tr_tag</key>
|
||||
<value>""</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>type</key>
|
||||
<value>float</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>update_time</key>
|
||||
<value>0.10</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>ylabel</key>
|
||||
<value>Amplitude</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>yunit</key>
|
||||
<value>""</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>ymax</key>
|
||||
<value>1</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>ymin</key>
|
||||
<value>-1</value>
|
||||
</param>
|
||||
</block>
|
||||
<block>
|
||||
<key>satnogs_ax25_encoder_bf</key>
|
||||
<param>
|
||||
<key>alias</key>
|
||||
<value></value>
|
||||
</param>
|
||||
<param>
|
||||
<key>comment</key>
|
||||
<value></value>
|
||||
</param>
|
||||
<param>
|
||||
<key>affinity</key>
|
||||
<value></value>
|
||||
</param>
|
||||
<param>
|
||||
<key>dest_addr</key>
|
||||
<value>ABCD</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>dest_ssid</key>
|
||||
<value>0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>_enabled</key>
|
||||
<value>1</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>_coordinate</key>
|
||||
<value>(536, 479)</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>_rotation</key>
|
||||
<value>0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>id</key>
|
||||
<value>satnogs_ax25_encoder_bf_0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>maxoutbuf</key>
|
||||
<value>0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>minoutbuf</key>
|
||||
<value>0</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>src_addr</key>
|
||||
<value>EFGH</value>
|
||||
</param>
|
||||
<param>
|
||||
<key>src_ssid</key>
|
||||
<value>0</value>
|
||||
</param>
|
||||
</block>
|
||||
<connection>
|
||||
<source_block_id>blocks_message_strobe_0</source_block_id>
|
||||
<sink_block_id>blocks_message_debug_0</sink_block_id>
|
||||
<source_key>strobe</source_key>
|
||||
<sink_key>print</sink_key>
|
||||
</connection>
|
||||
<connection>
|
||||
<source_block_id>blocks_message_strobe_0</source_block_id>
|
||||
<sink_block_id>satnogs_ax25_encoder_bf_0</sink_block_id>
|
||||
<source_key>strobe</source_key>
|
||||
<sink_key>info</sink_key>
|
||||
</connection>
|
||||
<connection>
|
||||
<source_block_id>satnogs_ax25_encoder_bf_0</source_block_id>
|
||||
<sink_block_id>qtgui_time_sink_x_0</sink_block_id>
|
||||
<source_key>0</source_key>
|
||||
<sink_key>0</sink_key>
|
||||
</connection>
|
||||
</flow_graph>
|
||||
|
|
@ -23,5 +23,6 @@ install(FILES
|
|||
satnogs_clear_text_msg_sink.xml
|
||||
satnogs_cw_to_symbol.xml
|
||||
satnogs_afsk_decoder.xml
|
||||
satnogs_sine_matched_filter_ff.xml DESTINATION share/gnuradio/grc/blocks
|
||||
satnogs_sine_matched_filter_ff.xml
|
||||
satnogs_ax25_encoder_bf.xml DESTINATION share/gnuradio/grc/blocks
|
||||
)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,43 @@
|
|||
<?xml version="1.0"?>
|
||||
<block>
|
||||
<name>AX.25 Encoder</name>
|
||||
<key>satnogs_ax25_encoder_bf</key>
|
||||
<category>satnogs</category>
|
||||
<import>import satnogs</import>
|
||||
<make>satnogs.ax25_encoder_bf($dest_addr, $dest_ssid, $src_addr, $src_ssid)</make>
|
||||
<callback>set_address_field($dest_addr, $dest_ssid, $src_addr, $src_ssid)</callback>
|
||||
|
||||
<param>
|
||||
<name>Destination Callsign</name>
|
||||
<key>dest_addr</key>
|
||||
<type>string</type>
|
||||
</param>
|
||||
|
||||
<param>
|
||||
<name>Destination SSID</name>
|
||||
<key>dest_ssid</key>
|
||||
<type>int</type>
|
||||
</param>
|
||||
|
||||
<param>
|
||||
<name>Source Callsign</name>
|
||||
<key>src_addr</key>
|
||||
<type>string</type>
|
||||
</param>
|
||||
|
||||
<param>
|
||||
<name>Source SSID</name>
|
||||
<key>src_ssid</key>
|
||||
<type>int</type>
|
||||
</param>
|
||||
|
||||
<sink>
|
||||
<name>info</name>
|
||||
<type>message</type>
|
||||
</sink>
|
||||
|
||||
<source>
|
||||
<name>out</name>
|
||||
<type>float</type>
|
||||
</source>
|
||||
</block>
|
||||
|
|
@ -22,6 +22,7 @@
|
|||
########################################################################
|
||||
install(FILES
|
||||
api.h
|
||||
ax25.h
|
||||
config.h
|
||||
cw_matched_filter_ff.h
|
||||
log.h
|
||||
|
|
@ -33,5 +34,6 @@ install(FILES
|
|||
cw_to_symbol.h
|
||||
afsk_decoder.h
|
||||
sine_matched_filter_ff.h
|
||||
utils.h DESTINATION include/satnogs
|
||||
utils.h
|
||||
ax25_encoder_bf.h DESTINATION include/satnogs
|
||||
)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,234 @@
|
|||
/* -*- c++ -*- */
|
||||
/*
|
||||
* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
|
||||
*
|
||||
* Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef INCLUDE_SATNOGS_AX25_H_
|
||||
#define INCLUDE_SATNOGS_AX25_H_
|
||||
|
||||
#include <satnogs/utils.h>
|
||||
|
||||
namespace gr
|
||||
{
|
||||
|
||||
namespace satnogs
|
||||
{
|
||||
const size_t AX25_MIN_ADDR_LEN = 14;
|
||||
const size_t AX25_MAX_ADDR_LEN = 28;
|
||||
const size_t AX25_MIN_CTRL_LEN = 1;
|
||||
const size_t AX25_MAX_CTRL_LEN = 2;
|
||||
const size_t AX25_MAX_FRAME_LEN = 256;
|
||||
const uint8_t AX25_SYNC_FLAG = 0x7E;
|
||||
const uint8_t AX25_CALLSIGN_MAX_LEN = 6;
|
||||
const float AX25_SYNC_FLAG_MAP[8] = {-1, 1, 1, 1, 1, 1, 1, -1};
|
||||
/**
|
||||
* AX.25 Frame types
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
AX25_I_FRAME, //!< AX25_I_FRAME Information frame
|
||||
AX25_S_FRAME, //!< AX25_S_FRAME Supervisory frame
|
||||
AX25_U_FRAME //!< AX25_U_FRAME Unnumbered frame
|
||||
} ax25_frame_type_t;
|
||||
|
||||
typedef enum
|
||||
{
|
||||
AX25_ENC_FAIL,
|
||||
AX25_ENC_OK
|
||||
} ax25_encode_status_t;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
uint8_t address[AX25_MAX_ADDR_LEN];
|
||||
size_t address_len;
|
||||
uint16_t ctrl;
|
||||
size_t ctrl_len;
|
||||
uint8_t pid;
|
||||
uint8_t info[AX25_MAX_FRAME_LEN];
|
||||
ax25_frame_type_t type;
|
||||
} ax25_frame_t;
|
||||
|
||||
/**
|
||||
* Calculates the FCS of the AX25 frame
|
||||
* @param buffer data buffer
|
||||
* @param len size of the buffer
|
||||
* @return the FCS of the buffer
|
||||
*/
|
||||
static inline uint16_t
|
||||
ax25_fcs (uint8_t *buffer, size_t len)
|
||||
{
|
||||
uint16_t fcs = 0xFFFF;
|
||||
while (len--) {
|
||||
fcs = (fcs >> 8) ^ crc16_ccitt_table_reverse[(fcs ^ *buffer++) & 0XFF];
|
||||
}
|
||||
return fcs ^ 0xFFFF;
|
||||
}
|
||||
|
||||
/**
|
||||
* Createst the header field of the AX.25 frame
|
||||
* @param out the output buffer with enough memory to hold the address field
|
||||
* @param dest_addr the destination callsign address
|
||||
* @param dest_ssid the destination SSID
|
||||
* @param src_addr the callsign of the source
|
||||
* @param src_ssid the source SSID
|
||||
*/
|
||||
static inline size_t
|
||||
ax25_create_addr_field (uint8_t *out, std::string dest_addr,
|
||||
uint8_t dest_ssid, std::string src_addr,
|
||||
uint8_t src_ssid)
|
||||
{
|
||||
size_t i;
|
||||
|
||||
for(i = 0; i < dest_addr.length(); i++) {
|
||||
*out++ = dest_addr[i] << 1;
|
||||
}
|
||||
/*
|
||||
* Perhaps the destination callsign was smaller that the maximum allowed.
|
||||
* In this case the leftover bytes should be filled with space
|
||||
*/
|
||||
for(; i < AX25_CALLSIGN_MAX_LEN; i++){
|
||||
*out++ = ' ' << 1;
|
||||
}
|
||||
/* Apply SSID, reserved and C bit */
|
||||
/* FIXME: C bit is set to 0 implicitly */
|
||||
*out++ = ((0b1111 & dest_ssid) << 1) | 0b01100000;
|
||||
|
||||
for(i = 0; i < src_addr.length(); i++) {
|
||||
*out++ = dest_addr[i] << 1;
|
||||
}
|
||||
for(; i < AX25_CALLSIGN_MAX_LEN; i++){
|
||||
*out++ = ' ' << 1;
|
||||
}
|
||||
/* Apply SSID, reserved and C bit. As this is the last address field
|
||||
* the trailing bit is set to 1.
|
||||
* /
|
||||
/* FIXME: C bit is set to 0 implicitly */
|
||||
*out++ = ((0b1111 & dest_ssid) << 1) | 0b01100001;
|
||||
return AX25_MIN_ADDR_LEN;
|
||||
}
|
||||
|
||||
static inline size_t
|
||||
ax25_prepare_frame (uint8_t *out, const uint8_t *info, size_t info_len,
|
||||
ax25_frame_type_t type, uint8_t *addr, size_t addr_len,
|
||||
uint16_t ctrl, size_t ctrl_len)
|
||||
{
|
||||
uint16_t fcs;
|
||||
size_t i = 1;
|
||||
if(info_len > AX25_MAX_FRAME_LEN) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
out[0] = AX25_SYNC_FLAG;
|
||||
/* Insert address and control fields */
|
||||
if( addr_len == AX25_MIN_ADDR_LEN || addr_len == AX25_MAX_ADDR_LEN){
|
||||
memcpy(out + i, addr, addr_len);
|
||||
i += addr_len;
|
||||
}
|
||||
else{
|
||||
return 0;
|
||||
}
|
||||
|
||||
if( ctrl_len == AX25_MIN_CTRL_LEN || ctrl_len == AX25_MAX_CTRL_LEN){
|
||||
memcpy(out + i, &ctrl, ctrl_len);
|
||||
i += addr_len;
|
||||
}
|
||||
else{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Set the PID depending the frame type.
|
||||
* FIXME: For now, only the "No layer 3 is implemented" information is
|
||||
* inserted
|
||||
*/
|
||||
if(type == AX25_I_FRAME){
|
||||
out[i] = 0xF0;
|
||||
i++;
|
||||
}
|
||||
memcpy(out + i, info, info_len);
|
||||
i =+ info_len;
|
||||
|
||||
/* Compute the FCS. Ignore the first flag byte */
|
||||
fcs = ax25_fcs(out + 1, i - 1);
|
||||
/* The MS bits are sent first ONLY at the FCS field */
|
||||
out[i++] = (fcs >> 8) & 0xFF;
|
||||
out[i++] = fcs & 0xFF;
|
||||
out[i++] = AX25_SYNC_FLAG;
|
||||
|
||||
return i;
|
||||
}
|
||||
|
||||
static inline ax25_encode_status_t
|
||||
ax25_nrz_encode(float *out, size_t *out_len,
|
||||
const uint8_t *buffer, const size_t buffer_len)
|
||||
{
|
||||
uint8_t bit;
|
||||
uint8_t prev_bit = 0;
|
||||
size_t out_idx = 0;
|
||||
size_t bit_idx;
|
||||
size_t cont_1 = 0;
|
||||
size_t total_cont_1 = 0;
|
||||
size_t i;
|
||||
|
||||
/* Leading FLAG field does not need bit stuffing */
|
||||
memcpy(out, AX25_SYNC_FLAG_MAP, 8 * sizeof(float));
|
||||
out_idx = 8;
|
||||
/* Skip the leading and trailing FLAG field */
|
||||
buffer++;
|
||||
for(i = 0; i < 8 * (buffer_len - 2); i++){
|
||||
bit = (buffer[i / 8] >> ( i % 8)) & 0x1;
|
||||
out[out_idx++] = bit ? 1.0 : -1.0;
|
||||
|
||||
/* Check if bit stuffing should be applied */
|
||||
if(bit & prev_bit){
|
||||
cont_1++;
|
||||
total_cont_1++;
|
||||
if(cont_1 == 4){
|
||||
out[out_idx++] = -1.0;
|
||||
cont_1 = 0;
|
||||
}
|
||||
}
|
||||
else{
|
||||
cont_1 = total_cont_1 = 0;
|
||||
}
|
||||
prev_bit = bit;
|
||||
|
||||
/*
|
||||
* If the total number of continuous 1's is 15 the the frame should be
|
||||
* dropped
|
||||
*/
|
||||
if(total_cont_1 >= 14) {
|
||||
return AX25_ENC_FAIL;
|
||||
}
|
||||
}
|
||||
|
||||
/* Trailing FLAG field does not need bit stuffing */
|
||||
memcpy(out + out_idx, AX25_SYNC_FLAG_MAP, 8 * sizeof(float));
|
||||
out_idx += 8;
|
||||
|
||||
*out_len = out_idx;
|
||||
return AX25_ENC_OK;
|
||||
}
|
||||
|
||||
} // namespace satnogs
|
||||
|
||||
} // namespace gr
|
||||
|
||||
|
||||
|
||||
#endif /* INCLUDE_SATNOGS_AX25_H_ */
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
/* -*- c++ -*- */
|
||||
/*
|
||||
* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
|
||||
*
|
||||
* Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef INCLUDED_SATNOGS_AX25_ENCODER_BF_H
|
||||
#define INCLUDED_SATNOGS_AX25_ENCODER_BF_H
|
||||
|
||||
#include <satnogs/api.h>
|
||||
#include <gnuradio/sync_block.h>
|
||||
#include <satnogs/ax25.h>
|
||||
|
||||
namespace gr {
|
||||
namespace satnogs {
|
||||
|
||||
/*!
|
||||
* \brief AX.25 packet encoder
|
||||
* \ingroup satnogs
|
||||
*
|
||||
*/
|
||||
class SATNOGS_API ax25_encoder_bf : virtual public gr::sync_block
|
||||
{
|
||||
public:
|
||||
typedef boost::shared_ptr<ax25_encoder_bf> sptr;
|
||||
|
||||
|
||||
/**
|
||||
* AX.25 packet encoder. This block receives messages containing
|
||||
* the packet information, contracts a AX.25 packet end encodes it
|
||||
* using NRZ.
|
||||
*
|
||||
* The block also creates suitable burst tags for proper
|
||||
* burst transmission in SDR devices that support them.
|
||||
*
|
||||
* @param dest_addr the destination callsign address
|
||||
* @param dest_ssid the destination SSID
|
||||
* @param src_addr the callsign of the source
|
||||
* @param src_ssid the source SSID
|
||||
*/
|
||||
static sptr make(std::string dest_addr,
|
||||
uint8_t dest_ssid,
|
||||
std::string src_addr,
|
||||
uint8_t src_ssid);
|
||||
|
||||
virtual void
|
||||
set_address_field (std::string dest_addr, uint8_t dest_ssid,
|
||||
std::string src_addr, uint8_t src_ssid) = 0;
|
||||
};
|
||||
|
||||
} // namespace satnogs
|
||||
} // namespace gr
|
||||
|
||||
#endif /* INCLUDED_SATNOGS_AX25_ENCODER_BF_H */
|
||||
|
||||
|
|
@ -21,30 +21,123 @@
|
|||
#ifndef INCLUDE_SATNOGS_UTILS_H_
|
||||
#define INCLUDE_SATNOGS_UTILS_H_
|
||||
|
||||
|
||||
namespace gr
|
||||
{
|
||||
|
||||
namespace satnogs
|
||||
{
|
||||
namespace satnogs
|
||||
{
|
||||
|
||||
/**
|
||||
* Computes the Mean Absolute Percentage Error
|
||||
* @param ref the reference value
|
||||
* @param estimation the estimated value
|
||||
* @return the mean absolute percentage error
|
||||
*/
|
||||
static inline double
|
||||
mape(double ref, double estimation)
|
||||
{
|
||||
return std::abs(ref - estimation) / ref;
|
||||
}
|
||||
/**
|
||||
* Computes the Mean Absolute Percentage Error
|
||||
* @param ref the reference value
|
||||
* @param estimation the estimated value
|
||||
* @return the mean absolute percentage error
|
||||
*/
|
||||
static inline double
|
||||
mape (double ref, double estimation)
|
||||
{
|
||||
return std::abs (ref - estimation) / ref;
|
||||
}
|
||||
|
||||
} // namespace satnogs
|
||||
/**
|
||||
* Lookup table for the CCITT CRC16
|
||||
*/
|
||||
static const uint16_t crc16_ccitt_table_reverse[256] =
|
||||
{ 0x0000, 0x1189, 0x2312, 0x329B, 0x4624, 0x57AD, 0x6536, 0x74BF, 0x8C48,
|
||||
0x9DC1, 0xAF5A, 0xBED3, 0xCA6C, 0xDBE5, 0xE97E, 0xF8F7, 0x1081,
|
||||
0x0108, 0x3393, 0x221A, 0x56A5, 0x472C, 0x75B7, 0x643E, 0x9CC9,
|
||||
0x8D40, 0xBFDB, 0xAE52, 0xDAED, 0xCB64, 0xF9FF, 0xE876, 0x2102,
|
||||
0x308B, 0x0210, 0x1399, 0x6726, 0x76AF, 0x4434, 0x55BD, 0xAD4A,
|
||||
0xBCC3, 0x8E58, 0x9FD1, 0xEB6E, 0xFAE7, 0xC87C, 0xD9F5, 0x3183,
|
||||
0x200A, 0x1291, 0x0318, 0x77A7, 0x662E, 0x54B5, 0x453C, 0xBDCB,
|
||||
0xAC42, 0x9ED9, 0x8F50, 0xFBEF, 0xEA66, 0xD8FD, 0xC974, 0x4204,
|
||||
0x538D, 0x6116, 0x709F, 0x0420, 0x15A9, 0x2732, 0x36BB, 0xCE4C,
|
||||
0xDFC5, 0xED5E, 0xFCD7, 0x8868, 0x99E1, 0xAB7A, 0xBAF3, 0x5285,
|
||||
0x430C, 0x7197, 0x601E, 0x14A1, 0x0528, 0x37B3, 0x263A, 0xDECD,
|
||||
0xCF44, 0xFDDF, 0xEC56, 0x98E9, 0x8960, 0xBBFB, 0xAA72, 0x6306,
|
||||
0x728F, 0x4014, 0x519D, 0x2522, 0x34AB, 0x0630, 0x17B9, 0xEF4E,
|
||||
0xFEC7, 0xCC5C, 0xDDD5, 0xA96A, 0xB8E3, 0x8A78, 0x9BF1, 0x7387,
|
||||
0x620E, 0x5095, 0x411C, 0x35A3, 0x242A, 0x16B1, 0x0738, 0xFFCF,
|
||||
0xEE46, 0xDCDD, 0xCD54, 0xB9EB, 0xA862, 0x9AF9, 0x8B70, 0x8408,
|
||||
0x9581, 0xA71A, 0xB693, 0xC22C, 0xD3A5, 0xE13E, 0xF0B7, 0x0840,
|
||||
0x19C9, 0x2B52, 0x3ADB, 0x4E64, 0x5FED, 0x6D76, 0x7CFF, 0x9489,
|
||||
0x8500, 0xB79B, 0xA612, 0xD2AD, 0xC324, 0xF1BF, 0xE036, 0x18C1,
|
||||
0x0948, 0x3BD3, 0x2A5A, 0x5EE5, 0x4F6C, 0x7DF7, 0x6C7E, 0xA50A,
|
||||
0xB483, 0x8618, 0x9791, 0xE32E, 0xF2A7, 0xC03C, 0xD1B5, 0x2942,
|
||||
0x38CB, 0x0A50, 0x1BD9, 0x6F66, 0x7EEF, 0x4C74, 0x5DFD, 0xB58B,
|
||||
0xA402, 0x9699, 0x8710, 0xF3AF, 0xE226, 0xD0BD, 0xC134, 0x39C3,
|
||||
0x284A, 0x1AD1, 0x0B58, 0x7FE7, 0x6E6E, 0x5CF5, 0x4D7C, 0xC60C,
|
||||
0xD785, 0xE51E, 0xF497, 0x8028, 0x91A1, 0xA33A, 0xB2B3, 0x4A44,
|
||||
0x5BCD, 0x6956, 0x78DF, 0x0C60, 0x1DE9, 0x2F72, 0x3EFB, 0xD68D,
|
||||
0xC704, 0xF59F, 0xE416, 0x90A9, 0x8120, 0xB3BB, 0xA232, 0x5AC5,
|
||||
0x4B4C, 0x79D7, 0x685E, 0x1CE1, 0x0D68, 0x3FF3, 0x2E7A, 0xE70E,
|
||||
0xF687, 0xC41C, 0xD595, 0xA12A, 0xB0A3, 0x8238, 0x93B1, 0x6B46,
|
||||
0x7ACF, 0x4854, 0x59DD, 0x2D62, 0x3CEB, 0x0E70, 0x1FF9, 0xF78F,
|
||||
0xE606, 0xD49D, 0xC514, 0xB1AB, 0xA022, 0x92B9, 0x8330, 0x7BC7,
|
||||
0x6A4E, 0x58D5, 0x495C, 0x3DE3, 0x2C6A, 0x1EF1, 0x0F78 };
|
||||
|
||||
/**
|
||||
* Counts the number of active bits in x
|
||||
*/
|
||||
static inline unsigned int
|
||||
bit_count (unsigned int x)
|
||||
{
|
||||
/*
|
||||
* Some more magic from
|
||||
* http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel
|
||||
*/
|
||||
x = x - ((x >> 1) & 0x55555555);
|
||||
x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
|
||||
return (((x + (x >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24;
|
||||
}
|
||||
|
||||
static const uint8_t _bytes_reversed[256] =
|
||||
{ 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0,
|
||||
0x30, 0xB0, 0x70, 0xF0, 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68,
|
||||
0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, 0x04, 0x84,
|
||||
0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34,
|
||||
0xB4, 0x74, 0xF4, 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC,
|
||||
0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC, 0x02, 0x82, 0x42,
|
||||
0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2,
|
||||
0x72, 0xF2, 0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, 0x1A,
|
||||
0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA, 0x06, 0x86, 0x46, 0xC6,
|
||||
0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76,
|
||||
0xF6, 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, 0x1E, 0x9E,
|
||||
0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, 0x01, 0x81, 0x41, 0xC1, 0x21,
|
||||
0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
|
||||
0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59,
|
||||
0xD9, 0x39, 0xB9, 0x79, 0xF9, 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5,
|
||||
0x65, 0xE5, 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, 0x0D,
|
||||
0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD,
|
||||
0x3D, 0xBD, 0x7D, 0xFD, 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63,
|
||||
0xE3, 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3, 0x0B, 0x8B,
|
||||
0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, 0x1B, 0x9B, 0x5B, 0xDB, 0x3B,
|
||||
0xBB, 0x7B, 0xFB, 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7,
|
||||
0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7, 0x0F, 0x8F, 0x4F,
|
||||
0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF,
|
||||
0x7F, 0xFF };
|
||||
|
||||
/**
|
||||
* Reverse the bits of the byte b.
|
||||
* @param b the byte to be mirrored.
|
||||
*/
|
||||
static inline uint8_t
|
||||
reverse_byte (uint8_t b)
|
||||
{
|
||||
return _bytes_reversed[b];
|
||||
}
|
||||
|
||||
static inline uint32_t
|
||||
reverse_uint32_bytes (uint32_t i)
|
||||
{
|
||||
return (_bytes_reversed[i & 0xff] << 24)
|
||||
| (_bytes_reversed[(i >> 8) & 0xff] << 16)
|
||||
| (_bytes_reversed[(i >> 16) & 0xff] << 8)
|
||||
| (_bytes_reversed[(i >> 24) & 0xff]);
|
||||
}
|
||||
|
||||
} // namespace satnogs
|
||||
|
||||
} // namespace gr
|
||||
|
||||
|
||||
|
||||
#endif /* INCLUDE_SATNOGS_UTILS_H_ */
|
||||
|
|
|
|||
|
|
@ -32,7 +32,8 @@ list(APPEND satnogs_sources
|
|||
clear_text_msg_sink_impl.cc
|
||||
cw_to_symbol_impl.cc
|
||||
afsk_decoder_impl.cc
|
||||
sine_matched_filter_ff_impl.cc )
|
||||
sine_matched_filter_ff_impl.cc
|
||||
ax25_encoder_bf_impl.cc )
|
||||
|
||||
set(satnogs_sources "${satnogs_sources}" PARENT_SCOPE)
|
||||
if(NOT satnogs_sources)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,162 @@
|
|||
/* -*- c++ -*- */
|
||||
/*
|
||||
* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
|
||||
*
|
||||
* Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include <gnuradio/io_signature.h>
|
||||
#include "ax25_encoder_bf_impl.h"
|
||||
#include <satnogs/log.h>
|
||||
|
||||
namespace gr
|
||||
{
|
||||
namespace satnogs
|
||||
{
|
||||
|
||||
ax25_encoder_bf::sptr
|
||||
ax25_encoder_bf::make (std::string dest_addr,
|
||||
uint8_t dest_ssid, std::string src_addr,
|
||||
uint8_t src_ssid)
|
||||
{
|
||||
return gnuradio::get_initial_sptr (new ax25_encoder_bf_impl (AX25_I_FRAME,
|
||||
dest_addr,
|
||||
dest_ssid,
|
||||
src_addr,
|
||||
src_ssid));
|
||||
}
|
||||
|
||||
/*
|
||||
* The private constructor
|
||||
*/
|
||||
ax25_encoder_bf_impl::ax25_encoder_bf_impl (ax25_frame_type_t type,
|
||||
std::string dest_addr,
|
||||
uint8_t dest_ssid,
|
||||
std::string src_addr,
|
||||
uint8_t src_ssid) :
|
||||
gr::sync_block ("ax25_encoder_bf", gr::io_signature::make (0, 0, 0),
|
||||
gr::io_signature::make (1, 1, sizeof(float))),
|
||||
d_type (type),
|
||||
d_remaining (0),
|
||||
d_produced(0)
|
||||
{
|
||||
/* Input is a key-value pair containing the info field data */
|
||||
message_port_register_in (pmt::mp ("info"));
|
||||
d_addr_len = ax25_create_addr_field(d_addr_field, dest_addr, dest_ssid,
|
||||
src_addr, src_ssid);
|
||||
}
|
||||
|
||||
/*
|
||||
* Our virtual destructor.
|
||||
*/
|
||||
ax25_encoder_bf_impl::~ax25_encoder_bf_impl ()
|
||||
{
|
||||
}
|
||||
|
||||
int
|
||||
ax25_encoder_bf_impl::work (int noutput_items,
|
||||
gr_vector_const_void_star &input_items,
|
||||
gr_vector_void_star &output_items)
|
||||
{
|
||||
const uint8_t *info;
|
||||
size_t info_len;
|
||||
size_t max_avail;
|
||||
size_t len;
|
||||
size_t i;
|
||||
pmt::pmt_t msg;
|
||||
ax25_encode_status_t status;
|
||||
|
||||
float *out = (float *) output_items[0];
|
||||
|
||||
/* If all the frame samples have already be sent, wait for a new frame */
|
||||
if (d_remaining == 0) {
|
||||
boost::mutex::scoped_lock lock (d_mutex);
|
||||
d_produced = 0;
|
||||
|
||||
/* Block waiting from a new message from users */
|
||||
msg = delete_head_blocking (pmt::mp ("info"), 0);
|
||||
info = (const uint8_t *)pmt::blob_data(msg);
|
||||
info_len = pmt::blob_length(msg);
|
||||
|
||||
/* Prepare and encode the AX.25 frame */
|
||||
len = ax25_prepare_frame (d_tmp_buf, info, info_len, AX25_I_FRAME,
|
||||
d_addr_field, d_addr_len, 0, 1);
|
||||
status = ax25_nrz_encode(d_endoded_frame, &d_remaining, d_tmp_buf,
|
||||
len);
|
||||
if(status != AX25_ENC_OK){
|
||||
LOG_ERROR("NRZ Encoding failed");
|
||||
d_remaining = 0;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* If this is the first part of the frame add the start of burst tag*/
|
||||
if(d_produced == 0) {
|
||||
add_sob(nitems_written(0));
|
||||
}
|
||||
max_avail = std::min(d_remaining, (size_t) noutput_items);
|
||||
memcpy(out, d_endoded_frame + d_produced, max_avail * sizeof(float));
|
||||
d_remaining -= max_avail;
|
||||
d_produced += max_avail;
|
||||
if(d_remaining == 0){
|
||||
add_eob(nitems_written(0) + max_avail);
|
||||
}
|
||||
return (int) max_avail;
|
||||
}
|
||||
|
||||
/**
|
||||
* Updates the source and destination callsigns and SSIDs
|
||||
* @param dest_addr the destination callsign address
|
||||
* @param dest_ssid the destination SSID
|
||||
* @param src_addr the callsign of the source
|
||||
* @param src_ssid the source SSID
|
||||
*/
|
||||
void
|
||||
ax25_encoder_bf_impl::set_address_field (std::string dest_addr,
|
||||
uint8_t dest_ssid,
|
||||
std::string src_addr,
|
||||
uint8_t src_ssid)
|
||||
{
|
||||
boost::mutex::scoped_lock lock (d_mutex);
|
||||
d_addr_len = ax25_create_addr_field(d_addr_field, dest_addr, dest_ssid,
|
||||
src_addr, src_ssid);
|
||||
}
|
||||
|
||||
void
|
||||
ax25_encoder_bf_impl::add_sob (uint64_t item)
|
||||
{
|
||||
static const pmt::pmt_t sob_key = pmt::string_to_symbol ("tx_sob");
|
||||
static const pmt::pmt_t value = pmt::PMT_T;
|
||||
static const pmt::pmt_t srcid = pmt::string_to_symbol (alias ());
|
||||
add_item_tag (0, item, sob_key, value, srcid);
|
||||
}
|
||||
|
||||
void
|
||||
ax25_encoder_bf_impl::add_eob (uint64_t item)
|
||||
{
|
||||
static const pmt::pmt_t eob_key = pmt::string_to_symbol ("tx_eob");
|
||||
static const pmt::pmt_t value = pmt::PMT_T;
|
||||
static const pmt::pmt_t srcid = pmt::string_to_symbol (alias ());
|
||||
add_item_tag (0, item, eob_key, value, srcid);
|
||||
}
|
||||
|
||||
} /* namespace satnogs */
|
||||
} /* namespace gr */
|
||||
|
||||
|
|
@ -0,0 +1,66 @@
|
|||
/* -*- c++ -*- */
|
||||
/*
|
||||
* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
|
||||
*
|
||||
* Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef INCLUDED_SATNOGS_AX25_ENCODER_BF_IMPL_H
|
||||
#define INCLUDED_SATNOGS_AX25_ENCODER_BF_IMPL_H
|
||||
|
||||
#include <satnogs/ax25_encoder_bf.h>
|
||||
#include <boost/thread/mutex.hpp>
|
||||
|
||||
namespace gr {
|
||||
namespace satnogs {
|
||||
|
||||
class ax25_encoder_bf_impl : public ax25_encoder_bf
|
||||
{
|
||||
private:
|
||||
const ax25_frame_type_t d_type;
|
||||
size_t d_remaining;
|
||||
size_t d_produced;
|
||||
/* Twice the maximum frame length is enough to hold all possible input data*/
|
||||
float d_endoded_frame[(AX25_MAX_FRAME_LEN * 2)];
|
||||
uint8_t d_tmp_buf[AX25_MAX_FRAME_LEN * 2];
|
||||
uint8_t d_addr_field[AX25_MAX_ADDR_LEN];
|
||||
size_t d_addr_len;
|
||||
boost::mutex d_mutex;
|
||||
|
||||
void add_sob(uint64_t item);
|
||||
void add_eob(uint64_t item);
|
||||
|
||||
public:
|
||||
ax25_encoder_bf_impl (ax25_frame_type_t type, std::string dest_addr,
|
||||
uint8_t dest_ssid, std::string src_addr,
|
||||
uint8_t src_ssid);
|
||||
~ax25_encoder_bf_impl();
|
||||
|
||||
void
|
||||
set_address_field (std::string dest_addr, uint8_t dest_ssid,
|
||||
std::string src_addr, uint8_t src_ssid);
|
||||
|
||||
// Where all the action really happens
|
||||
int work(int noutput_items,
|
||||
gr_vector_const_void_star &input_items,
|
||||
gr_vector_void_star &output_items);
|
||||
};
|
||||
|
||||
} // namespace satnogs
|
||||
} // namespace gr
|
||||
|
||||
#endif /* INCLUDED_SATNOGS_AX25_ENCODER_BF_IMPL_H */
|
||||
|
||||
|
|
@ -2,6 +2,7 @@
|
|||
|
||||
#define SATNOGS_API
|
||||
|
||||
%include <typemaps.i>
|
||||
%include "gnuradio.i" // the common stuff
|
||||
|
||||
//load generated python docstrings
|
||||
|
|
@ -16,8 +17,10 @@
|
|||
#include "satnogs/cw_to_symbol.h"
|
||||
#include "satnogs/afsk_decoder.h"
|
||||
#include "satnogs/sine_matched_filter_ff.h"
|
||||
#include "satnogs/ax25_encoder_bf.h"
|
||||
%}
|
||||
|
||||
|
||||
%include "satnogs/cw_matched_filter_ff.h"
|
||||
GR_SWIG_BLOCK_MAGIC2(satnogs, cw_matched_filter_ff);
|
||||
%include "satnogs/morse_tree.h"
|
||||
|
|
@ -33,3 +36,5 @@ GR_SWIG_BLOCK_MAGIC2(satnogs, cw_to_symbol);
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|||
GR_SWIG_BLOCK_MAGIC2(satnogs, afsk_decoder);
|
||||
%include "satnogs/sine_matched_filter_ff.h"
|
||||
GR_SWIG_BLOCK_MAGIC2(satnogs, sine_matched_filter_ff);
|
||||
%include "satnogs/ax25_encoder_bf.h"
|
||||
GR_SWIG_BLOCK_MAGIC2(satnogs, ax25_encoder_bf);
|
||||
|
|
|
|||
Loading…
Reference in New Issue