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1 | 1 | <?xml version="1.0" encoding="UTF-8" standalone="yes" ?> |
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2 | 2 | <CodeBlocks_project_file> |
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3 | 3 | <FileVersion major="1" minor="6" /> |
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4 | 4 | <Project> |
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5 | 5 | <Option title="FSW-rtems" /> |
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6 | 6 | <Option pch_mode="2" /> |
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7 | 7 | <Option compiler="sparc_rtems_gcc" /> |
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8 | 8 | <Build> |
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9 | 9 | <Target title="Debug"> |
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10 | 10 | <Option output="bin/Debug/fsw" prefix_auto="1" extension_auto="1" /> |
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11 | 11 | <Option object_output="obj/Debug/" /> |
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12 | 12 | <Option type="1" /> |
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13 | 13 | <Option compiler="sparc_rtems_gcc_compiler" /> |
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14 | 14 | <Compiler> |
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15 | 15 | <Add option="-fexpensive-optimizations" /> |
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16 | 16 | <Add option="-O3" /> |
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17 | 17 | <Add option="-g" /> |
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18 | 18 | <Add directory="../header" /> |
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19 | 19 | <Add directory="../src" /> |
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20 | 20 | </Compiler> |
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21 | 21 | </Target> |
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22 | 22 | <Target title="Release"> |
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23 | 23 | <Option output="bin/Release/FSW-rtems" prefix_auto="1" extension_auto="1" /> |
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24 | 24 | <Option object_output="obj/Release/" /> |
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25 | 25 | <Option type="1" /> |
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26 | 26 | <Option compiler="sparc_rtems_gcc" /> |
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27 | 27 | <Compiler> |
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28 | 28 | <Add option="-O2" /> |
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29 | 29 | </Compiler> |
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30 | 30 | <Linker> |
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31 | 31 | <Add option="-s" /> |
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32 | 32 | </Linker> |
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33 | 33 | </Target> |
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34 | 34 | </Build> |
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35 | 35 | <Compiler> |
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36 | 36 | <Add option="-Wall" /> |
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37 | 37 | </Compiler> |
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38 | <Unit filename="../header/FSW-config.h" /> | |
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39 | <Unit filename="../header/FSW-rtems-processing.h" /> | |
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40 | <Unit filename="../header/TC_handler.h" /> | |
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41 | <Unit filename="../header/WF_handler.h" /> | |
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42 | 38 | <Unit filename="../header/ccsds_types.h" /> |
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43 |
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44 |
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39 | <Unit filename="../header/fsw_init.h" /> | |
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41 | <Unit filename="../header/fsw_params.h" /> | |
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42 | <Unit filename="../header/fsw_processing.h" /> | |
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43 | <Unit filename="../header/grlib_regs.h" /> | |
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44 | <Unit filename="../header/tc_handler.h" /> | |
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45 | <Unit filename="../header/wf_handler.h" /> | |
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46 | <Unit filename="../src/fsw_globals.c"> | |
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45 | 47 | <Option compilerVar="CC" /> |
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46 | 48 | </Unit> |
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47 |
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49 | <Unit filename="../src/fsw_init.c"> | |
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50 | <Option compilerVar="CC" /> | |
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51 | </Unit> | |
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52 | <Unit filename="../src/fsw_misc.c"> | |
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48 | 53 | <Option compilerVar="CC" /> |
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49 | 54 | </Unit> |
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50 |
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55 | <Unit filename="../src/fsw_processing.c"> | |
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51 | 56 | <Option compilerVar="CC" /> |
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52 | 57 | </Unit> |
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53 |
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58 | <Unit filename="../src/tc_handler.c"> | |
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54 | 59 | <Option compilerVar="CC" /> |
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55 | 60 | </Unit> |
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56 |
<Unit filename="../src/ |
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61 | <Unit filename="../src/wf_handler.c"> | |
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57 | 62 | <Option compilerVar="CC" /> |
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58 | 63 | </Unit> |
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59 | 64 | <Extensions> |
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60 | 65 | <code_completion /> |
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61 | 66 | <debugger /> |
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62 | 67 | </Extensions> |
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63 | 68 | </Project> |
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64 | 69 | </CodeBlocks_project_file> |
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1 | 1 | #ifndef TC_HANDLER_H_INCLUDED |
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2 | 2 | #define TC_HANDLER_H_INCLUDED |
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3 | 3 | |
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4 | 4 | #include <rtems.h> |
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5 | 5 | #include <stdio.h> |
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6 | 6 | #include <unistd.h> // for the read call |
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7 | 7 | #include <sys/ioctl.h> // for the ioctl call |
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8 | 8 | #include <ccsds_types.h> |
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9 | 9 | #include <grspw.h> |
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10 | 10 | |
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11 | 11 | extern int fdSPW; |
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12 | 12 | extern rtems_id Task_id[ ]; /* array of task ids */ |
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13 | 13 | |
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14 | 14 | unsigned char currentTC_LEN_RCV[2]; // SHALL be equal to the current TC packet estimated packet length field |
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15 | 15 | unsigned char currentTC_COMPUTED_CRC[2]; |
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16 | 16 | unsigned int currentTC_LEN_RCV_AsUnsignedInt; |
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17 | 17 | unsigned int currentTM_length; |
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18 | 18 | unsigned char currentTC_processedFlag; |
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19 | 19 | |
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20 | //********************** | |
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21 | // GENERAL USE FUNCTIONS | |
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20 | 22 | unsigned int lookUpTableForCRC[256]; |
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21 | 23 | void InitLookUpTableForCRC(); |
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22 | 24 | void GetCRCAsTwoBytes(unsigned char* data, unsigned char* crcAsTwoBytes, unsigned int sizeOfData); |
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23 | 25 | |
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26 | //********************* | |
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24 | 27 | // ACCEPTANCE FUNCTIONS |
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25 | 28 | unsigned char acceptTM(ccsdsTelecommandPacket_t * TMPacket, unsigned int TC_LEN_RCV); |
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26 | 29 | |
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27 | 30 | unsigned char TM_build_header( enum TM_TYPE tm_type, unsigned int SID, unsigned int packetLength, |
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28 | 31 | unsigned int coarseTime, unsigned int fineTime, TMHeader_t *TMHeader); |
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29 | 32 | unsigned char TM_build_data(ccsdsTelecommandPacket_t *TC, char* data, unsigned int SID, unsigned char *computed_CRC); |
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30 | 33 | unsigned int TC_checker(ccsdsTelecommandPacket_t *TC, unsigned int TC_LEN_RCV, |
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31 | 34 | TMHeader_t *TM_Header, unsigned int *hlen, char *data); |
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32 | 35 | |
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36 | //*********** | |
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33 | 37 | // RTEMS TASK |
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34 | 38 | rtems_task spw_recv_task( rtems_task_argument unused ); |
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35 | 39 | |
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36 | 40 | #endif // TC_HANDLER_H_INCLUDED |
@@ -1,319 +1,331 | |||
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1 | 1 | #include <tc_handler.h> |
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2 | 2 | #include <fsw_params.h> |
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3 | 3 | |
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4 | 4 | char *errorCCSDSMsg[8] = { "ILLEGAL_APID 0", |
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5 | 5 | "WRONG_LEN_PACKET 1", |
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6 | 6 | "INCOR_CHECKSUM 2", |
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7 | 7 | "ILL_TYPE 3", |
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8 | 8 | "ILL_SUBTYPE 4", |
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9 | 9 | "WRONG_APP_DATA 5", |
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10 | 10 | "WRONG_CMD_CODE 6", |
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11 | 11 | "CCSDS_TM_VALID 7" |
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12 | 12 | }; |
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13 | 13 | |
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14 | //********************** | |
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15 | // GENERAL USE FUNCTIONS | |
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14 | 16 | unsigned int Crc_opt( unsigned char D, unsigned int Chk) |
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15 | 17 | { |
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16 | 18 | return(((Chk << 8) & 0xff00)^lookUpTableForCRC [(((Chk >> 8)^D) & 0x00ff)]); |
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17 | 19 | } |
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18 | 20 | |
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19 | 21 | void InitLookUpTableForCRC() |
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20 | 22 | { |
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21 | 23 | unsigned int i, tmp; |
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22 | 24 | for (i=0; i<256; i++) |
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23 | 25 | { |
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24 | 26 | tmp = 0; |
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25 | 27 | if((i & 1) != 0) tmp = tmp ^ 0x1021; |
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26 | 28 | if((i & 2) != 0) tmp = tmp ^ 0x2042; |
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27 | 29 | if((i & 4) != 0) tmp = tmp ^ 0x4084; |
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28 | 30 | if((i & 8) != 0) tmp = tmp ^ 0x8108; |
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29 | 31 | if((i & 16) != 0) tmp = tmp ^ 0x1231; |
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30 | 32 | if((i & 32) != 0) tmp = tmp ^ 0x2462; |
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31 | 33 | if((i & 64) != 0) tmp = tmp ^ 0x48c4; |
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32 | 34 | if((i & 128) != 0) tmp = tmp ^ 0x9188; |
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33 | 35 | lookUpTableForCRC[i] = tmp; |
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34 | 36 | } |
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35 | 37 | } |
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36 | 38 | |
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37 | 39 | void GetCRCAsTwoBytes(unsigned char* data, unsigned char* crcAsTwoBytes, unsigned int sizeOfData) |
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38 | 40 | { |
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39 | 41 | unsigned int Chk; |
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40 | 42 | int j; |
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41 | 43 | Chk = 0xffff; // reset the syndrom to all ones |
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42 | 44 | for (j=0; j<sizeOfData; j++) { |
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43 | 45 | Chk = Crc_opt(data[j], Chk); |
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44 | 46 | } |
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45 | 47 | crcAsTwoBytes[0] = (unsigned char) (Chk >> 8); |
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46 | 48 | crcAsTwoBytes[1] = (unsigned char) (Chk & 0x00ff); |
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47 | 49 | } |
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48 | 50 | |
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51 | ||
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52 | //********************* | |
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53 | // ACCEPTANCE FUNCTIONS | |
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49 | 54 | unsigned int TC_checker(ccsdsTelecommandPacket_t *TC, unsigned int TC_LEN_RCV, |
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50 | 55 | TMHeader_t *TM_Header, unsigned int *hlen, char *data) |
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51 | 56 | { |
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52 | 57 | unsigned int code = 0; |
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53 | 58 | unsigned int data_length = 0; |
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54 | 59 | unsigned char computed_CRC[2]; |
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55 | 60 | unsigned char subtype = 0; |
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56 | 61 | |
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57 | 62 | subtype = TC->dataFieldHeader[2]; |
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58 | 63 | GetCRCAsTwoBytes( (unsigned char*) TC->packetID, computed_CRC, TC_LEN_RCV + 5 ); |
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59 | 64 | code = acceptTM( TC, TC_LEN_RCV ) ; |
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60 | 65 | //PRINTF1("in TC_checker *** %s\n", errorCCSDSMsg[code]); |
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61 | 66 | if ( (code == 0) | (code == 1) | (code == 2) |
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62 | 67 | | (code == 3) | (code == 4) | (code == 5) ) |
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63 | 68 | { // generate TM_LFR_TC_EXE_CORRUPTED |
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64 | 69 | // BUILD HEADER |
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65 | 70 | TM_build_header( TM_LFR_TC_EXE_ERR, SID_EXE_CORR, TM_LEN_EXE_CORR, 0, 0, TM_Header); |
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66 | 71 | // BUILD DATA |
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67 | 72 | TM_build_data( TC, data, SID_EXE_CORR, computed_CRC); |
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68 | 73 | data_length = TM_LEN_EXE_CORR + CCSDS_TC_TM_PACKET_OFFSET - TM_HEADER_LEN; |
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69 | 74 | } |
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70 | 75 | if (subtype == SID_TC_UPDT_TIME){ |
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71 | 76 | // BUILD HEADER |
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72 | 77 | TM_build_header( TM_LFR_TC_EXE_OK, SID_DEFAULT, TM_LEN_EXE, 0, 0, TM_Header); |
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73 | 78 | // BUILD DATA |
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74 | 79 | TM_build_data( TC, data, SID_DEFAULT, computed_CRC); |
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75 | 80 | data_length = TM_LEN_NOT_IMP + CCSDS_TC_TM_PACKET_OFFSET - TM_HEADER_LEN; |
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76 | 81 | } |
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77 | 82 | else { // TM_LFR_TC_EXE_NOT_IMPLEMENTED |
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78 | 83 | // BUILD HEADER |
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79 | 84 | TM_build_header( TM_LFR_TC_EXE_ERR, SID_NOT_IMP, TM_LEN_NOT_IMP, 0, 0, TM_Header); |
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80 | 85 | // BUILD DATA |
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81 | 86 | TM_build_data( TC, data, SID_NOT_IMP, computed_CRC); |
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82 | 87 | data_length = TM_LEN_NOT_IMP + CCSDS_TC_TM_PACKET_OFFSET - TM_HEADER_LEN; |
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83 | 88 | } |
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84 | 89 | |
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85 | 90 | return data_length; |
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86 | 91 | } |
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87 | 92 | |
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88 | 93 | unsigned char acceptTM(ccsdsTelecommandPacket_t * TMPacket, unsigned int TC_LEN_RCV) |
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89 | 94 | { |
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90 | 95 | unsigned char pid = 0; |
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91 | 96 | unsigned char category = 0; |
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92 | 97 | unsigned int length = 0; |
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93 | 98 | unsigned char packetType = 0; |
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94 | 99 | unsigned char packetSubtype = 0; |
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95 | 100 | unsigned char * CCSDSContent; |
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96 | 101 | |
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97 | 102 | // APID check *** APID on 2 bytes |
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98 | 103 | pid = ((TMPacket->packetID[0] & 0x07)<<4) + ( (TMPacket->packetID[1]>>4) & 0x0f ); // PID = 11 *** 7 bits xxxxx210 7654xxxx |
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99 | 104 | category = (TMPacket->packetID[1] & 0x0f); // PACKET_CATEGORY = 12 *** 4 bits xxxxxxxx xxxx3210 |
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100 | 105 | if (pid!=CCSDS_PROCESS_ID) return ILLEGAL_APID; |
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101 | 106 | if (category!=CCSDS_PACKET_CATEGORY) return ILLEGAL_APID; |
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102 | 107 | |
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103 | 108 | // packet length check |
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104 | 109 | length = TMPacket->packetLength[0] * 256 + TMPacket->packetLength[1]; |
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105 | 110 | if (length != TC_LEN_RCV ) return WRONG_LEN_PACKET; // LEN RCV != SIZE FIELD |
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106 | 111 | if (length >= CCSDS_TC_PKT_MAX_SIZE) return WRONG_LEN_PACKET; // check that the packet does not exceed the MAX size |
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107 | 112 | |
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108 | 113 | packetType = TMPacket->dataFieldHeader[1]; |
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109 | 114 | packetSubtype = TMPacket->dataFieldHeader[2]; |
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110 | 115 | // service type, subtype and packet length check |
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111 | 116 | if (packetType == 181){ |
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112 | 117 | switch(packetSubtype){ //subtype, autorized values are 3, 20, 21, 24, 27, 28, 30, 40, 50, 60, 61 |
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113 | 118 | case 3: |
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114 | 119 | if (length!=(12-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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115 | 120 | break; |
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116 | 121 | case 20: |
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117 | 122 | if (length!=(14-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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118 | 123 | break; |
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119 | 124 | case 21: |
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120 | 125 | if (length!=(20-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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121 | 126 | break; |
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122 | 127 | case 24: |
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123 | 128 | if (length!=(14-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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124 | 129 | break; |
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125 | 130 | case 27: |
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126 | 131 | if (length!=(14-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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127 | 132 | break; |
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128 | 133 | case 28: |
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129 | 134 | if (length!=(14-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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130 | 135 | break; |
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131 | 136 | case 30: |
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132 | 137 | if (length!=(12-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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133 | 138 | break; |
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134 | 139 | case 40: |
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135 | 140 | if (length!=(20-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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136 | 141 | break; |
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137 | 142 | case 50: |
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138 | 143 | if (length!=(50-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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139 | 144 | break; |
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140 | 145 | case 60: |
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141 | 146 | if (length!=(12-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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142 | 147 | break; |
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143 | 148 | case 61: |
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144 | 149 | if (length!=(12-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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145 | 150 | break; |
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146 | 151 | default: |
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147 | 152 | return ILL_SUBTYPE; |
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148 | 153 | break; |
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149 | 154 | } |
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150 | 155 | } |
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151 | 156 | else if (packetType == 9){ |
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152 | 157 | if (packetSubtype!=129) return ILL_SUBTYPE; |
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153 | 158 | if (length!=(18-CCSDS_TC_TM_PACKET_OFFSET)) return WRONG_LEN_PACKET; |
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154 | 159 | } |
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155 | 160 | else return ILL_TYPE; |
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156 | 161 | |
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157 | 162 | // source ID check // Source ID not documented in the ICD |
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158 | 163 | |
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159 | 164 | // packet error control, CRC check |
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160 | 165 | CCSDSContent = (unsigned char*) TMPacket->packetID; |
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161 | 166 | GetCRCAsTwoBytes(CCSDSContent, currentTC_COMPUTED_CRC, length + CCSDS_TC_TM_PACKET_OFFSET - 2); // 2 CRC bytes removed from the calculation of the CRC |
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162 | 167 | if (currentTC_COMPUTED_CRC[0] != CCSDSContent[length + CCSDS_TC_TM_PACKET_OFFSET -2]) return INCOR_CHECKSUM; |
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163 | 168 | if (currentTC_COMPUTED_CRC[1] != CCSDSContent[length + CCSDS_TC_TM_PACKET_OFFSET -1]) return INCOR_CHECKSUM; |
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164 | 169 | |
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165 | 170 | return CCSDS_TM_VALID; |
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166 | 171 | } |
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167 | 172 | |
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168 | 173 | unsigned char TM_build_header( enum TM_TYPE tm_type, unsigned int SID, unsigned int packetLength, |
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169 | 174 | unsigned int coarseTime, unsigned int fineTime, TMHeader_t *TMHeader) |
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170 | 175 | { |
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171 | 176 | TMHeader->targetLogicalAddress = CCSDS_DESTINATION_ID; |
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172 | 177 | TMHeader->protocolIdentifier = 0x02; |
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173 | 178 | TMHeader->reserved = 0x00; |
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174 | 179 | TMHeader->userApplication = 0x00; |
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175 | 180 | TMHeader->packetID[0] = 0x0c; |
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176 | 181 | TMHeader->packetSequenceControl[0] = 0xc0; |
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177 | 182 | TMHeader->packetSequenceControl[1] = 0x00; |
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178 | 183 | TMHeader->packetLength[0] = (unsigned char) (packetLength>>8); |
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179 | 184 | TMHeader->packetLength[1] = (unsigned char) packetLength; |
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180 | 185 | TMHeader->dataFieldHeader[0] = 0x10; |
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181 | 186 | TMHeader->dataFieldHeader[3] = CCSDS_DESTINATION_ID; |
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182 | 187 | switch (tm_type){ |
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183 | 188 | case(TM_LFR_TC_EXE_OK): |
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184 | 189 | TMHeader->packetID[1] = 0xc1; |
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185 | 190 | TMHeader->dataFieldHeader[1] = 1; // type |
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186 | 191 | TMHeader->dataFieldHeader[2] = 7; // subtype |
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187 | 192 | break; |
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188 | 193 | case(TM_LFR_TC_EXE_ERR): |
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189 | 194 | TMHeader->packetID[1] = 0xc1; |
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190 | 195 | TMHeader->dataFieldHeader[1] = 1; // type |
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191 | 196 | TMHeader->dataFieldHeader[2] = 8; // subtype |
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192 | 197 | break; |
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193 | 198 | case(TM_LFR_HK): |
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194 | 199 | TMHeader->packetID[1] = 0xc4; |
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195 | 200 | TMHeader->dataFieldHeader[1] = 3; // type |
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196 | 201 | TMHeader->dataFieldHeader[2] = 25; // subtype |
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197 | 202 | break; |
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198 | 203 | case(TM_LFR_SCI): |
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199 | 204 | TMHeader->packetID[1] = 0xcc; |
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200 | 205 | TMHeader->dataFieldHeader[1] = 21; // type |
|
201 | 206 | TMHeader->dataFieldHeader[2] = 3; // subtype |
|
202 | 207 | break; |
|
203 | 208 | case(TM_LFR_SCI_SBM): |
|
204 | 209 | TMHeader->packetID[1] = 0xfc; |
|
205 | 210 | TMHeader->dataFieldHeader[1] = 21; // type |
|
206 | 211 | TMHeader->dataFieldHeader[2] = 3; // subtype |
|
207 | 212 | break; |
|
208 | 213 | case(TM_LFR_PAR_DUMP): |
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209 | 214 | TMHeader->packetID[1] = 0xc9; |
|
210 | 215 | TMHeader->dataFieldHeader[1] = 181; // type |
|
211 | 216 | TMHeader->dataFieldHeader[2] = 31; // subtype |
|
212 | 217 | break; |
|
213 | 218 | default: |
|
214 | 219 | return 0; |
|
215 | 220 | } |
|
216 | 221 | /*TMHeader->dataFieldHeader[4] = (unsigned char) (coarseTime>>24); |
|
217 | 222 | TMHeader->dataFieldHeader[5] = (unsigned char) (coarseTime>>16); |
|
218 | 223 | TMHeader->dataFieldHeader[6] = (unsigned char) (coarseTime>>8); |
|
219 | 224 | TMHeader->dataFieldHeader[7] = (unsigned char) (coarseTime); |
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220 | 225 | TMHeader->dataFieldHeader[8] = (unsigned char) (fineTime>>8); |
|
221 | 226 | TMHeader->dataFieldHeader[9] = (unsigned char) (fineTime);*/ |
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222 | 227 | TMHeader->dataFieldHeader[4] = 0xaa; |
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223 | 228 | TMHeader->dataFieldHeader[5] = 0xbb; |
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224 | 229 | TMHeader->dataFieldHeader[6] = 0xcc; |
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225 | 230 | TMHeader->dataFieldHeader[7] = 0xdd; |
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226 | 231 | TMHeader->dataFieldHeader[8] = 0xee; |
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227 | 232 | TMHeader->dataFieldHeader[9] = 0xff; |
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228 | 233 | return 1; |
|
229 | 234 | } |
|
230 | 235 | |
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231 | 236 | unsigned char TM_build_data(ccsdsTelecommandPacket_t *TC, char* data, unsigned int SID, unsigned char *computed_CRC) |
|
232 | 237 | { |
|
233 | 238 | unsigned int packetLength; |
|
234 | 239 | packetLength = TC->packetLength[0] * 256 + TC->packetLength[1]; |
|
235 | 240 | switch (SID){ |
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236 | 241 | case (SID_NOT_EXE): |
|
237 | 242 | break; |
|
238 | 243 | case (SID_NOT_IMP): |
|
239 | 244 | data[0] = 0x9c; |
|
240 | 245 | data[1] = 0x42; |
|
241 | 246 | data[2] = TC->packetID[0]; |
|
242 | 247 | data[3] = TC->packetID[1]; |
|
243 | 248 | data[4] = TC->packetSequenceControl[0]; |
|
244 | 249 | data[5] = TC->packetSequenceControl[1]; |
|
245 | 250 | data[6] = TC->dataFieldHeader[1]; // type |
|
246 | 251 | data[7] = TC->dataFieldHeader[2]; // subtype |
|
247 | 252 | break; |
|
248 | 253 | case (SID_EXE_ERR): |
|
249 | 254 | break; |
|
250 | 255 | case (SID_EXE_CORR): |
|
251 | 256 | data[0] = 0x9c; |
|
252 | 257 | data[1] = 0x45; |
|
253 | 258 | data[2] = TC->packetID[0]; |
|
254 | 259 | data[3] = TC->packetID[1]; |
|
255 | 260 | data[4] = TC->packetSequenceControl[0]; |
|
256 | 261 | data[5] = TC->packetSequenceControl[1]; |
|
257 | 262 | data[6] = TC->dataFieldHeader[1]; // type |
|
258 | 263 | data[7] = TC->dataFieldHeader[2]; // subtype |
|
259 | 264 | data[8] = currentTC_LEN_RCV[0]; |
|
260 | 265 | data[9] = currentTC_LEN_RCV[1]; |
|
261 | 266 | data[10] = TC->packetLength[0]; |
|
262 | 267 | data[11] = TC->packetLength[1]; |
|
263 | 268 | data[12] = TC->dataAndCRC[packetLength]; |
|
264 | 269 | data[13] = TC->dataAndCRC[packetLength+1]; |
|
265 | 270 | data[14] = computed_CRC[0]; |
|
266 | 271 | data[15] = computed_CRC[1]; |
|
267 | 272 | break; |
|
268 | 273 | default: |
|
269 | 274 | return 0; |
|
270 | 275 | } |
|
271 | 276 | return 1; |
|
272 | 277 | } |
|
273 | 278 | |
|
279 | unsigned char actionLauncher(unsigned int sid) | |
|
280 | { | |
|
281 | ||
|
282 | } | |
|
283 | ||
|
284 | //*********** | |
|
285 | // RTEMS TASK | |
|
274 | 286 | rtems_task spw_recv_task( rtems_task_argument unused ) |
|
275 | 287 | { |
|
276 | 288 | rtems_status_code status; |
|
277 | 289 | int len = 0; |
|
278 | 290 | unsigned int i = 0; |
|
279 | 291 | unsigned int data_length = 0; |
|
280 | 292 | ccsdsTelecommandPacket_t currentTC; |
|
281 | 293 | spw_ioctl_pkt_send spw_ioctl_send; |
|
282 | 294 | TMHeader_t TM_header; |
|
283 | 295 | char data[100]; |
|
284 | 296 | |
|
285 | 297 | for(i=0; i<100; i++) data[i] = 0; |
|
286 | 298 | |
|
287 | 299 | PRINTF("In RECV *** \n") |
|
288 | 300 | |
|
289 | 301 | while(1){ |
|
290 | 302 | len = read(fdSPW, (char*) ¤tTC, CCSDS_TC_PKT_MAX_SIZE); // the call to read is blocking |
|
291 | 303 | if (len == -1){ // error during the read call |
|
292 | 304 | PRINTF("In RECV *** last read call returned -1\n") |
|
293 | 305 | if (rtems_event_send( Task_id[3], SPW_LINKERR_EVENT ) != RTEMS_SUCCESSFUL) |
|
294 | 306 | PRINTF("IN RECV *** Error: rtems_event_send SPW_LINKERR_EVENT\n") |
|
295 | 307 | if (rtems_task_suspend(RTEMS_SELF) != RTEMS_SUCCESSFUL) |
|
296 | 308 | PRINTF("In RECV *** Error: rtems_task_suspend(RTEMS_SELF)\n") |
|
297 | 309 | } |
|
298 | 310 | else { |
|
299 | 311 | //PRINTF1("In RECV *** Got Message of length %d\n", len) |
|
300 | 312 | currentTC_LEN_RCV[0] = 0x00; |
|
301 | 313 | currentTC_LEN_RCV[1] = (unsigned char) len - CCSDS_TC_TM_PACKET_OFFSET - 3; // build the corresponding packet size field |
|
302 | 314 | currentTC_LEN_RCV_AsUnsignedInt = (unsigned int) len - CCSDS_TC_TM_PACKET_OFFSET - 3; // => -3 is for Prot ID, Reserved and User App bytes |
|
303 | 315 | // CHECK THE TC AND BUILD THE APPROPRIATE TM |
|
304 | 316 | data_length = TC_checker(¤tTC, currentTC_LEN_RCV_AsUnsignedInt, |
|
305 | 317 | &TM_header, &spw_ioctl_send.hlen, data); |
|
306 | 318 | spw_ioctl_send.hlen = TM_HEADER_LEN + 4; // + 4 is for the protocole extra header |
|
307 | 319 | spw_ioctl_send.hdr = (char*) &TM_header; |
|
308 | 320 | spw_ioctl_send.dlen = data_length; |
|
309 | 321 | spw_ioctl_send.data = data; |
|
310 | 322 | //printf("hlen %d, dlen %d\n", spw_ioctl_send.hlen, spw_ioctl_send.dlen); |
|
311 | 323 | // SEND PACKET |
|
312 | 324 | status = ioctl( fdSPW, SPACEWIRE_IOCTRL_SEND, &spw_ioctl_send ); |
|
313 | 325 | if (status!=RTEMS_SUCCESSFUL) printf("In TC_checker *** Error SPACEWIRE_IOCTRL_SEND\n"); |
|
314 | 326 | //PRINTF1("In TC_checker *** packet of size %d sent\n", spw_ioctl_send.sent) |
|
315 | 327 | } |
|
316 | 328 | } |
|
317 | 329 | } |
|
318 | 330 | |
|
319 | 331 |
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