FreeCalypso > hg > fc-tourmaline
annotate cdg-hybrid/sap/ip.pdf @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 08 Jun 2023 08:23:37 +0000 |
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1 ;******************************************************************************** |
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2 ;*** File : ip.pdf |
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3 ;*** Creation : Wed Mar 11 09:58:12 CST 2009 |
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4 ;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1 |
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5 ;*** Copyright : (c) Texas Instruments AG, Berlin Germany 2002 |
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6 ;******************************************************************************** |
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7 ;*** Document Type : Service Access Point Specification |
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8 ;*** Document Name : ip |
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9 ;*** Document No. : 8444.101.00.006 |
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10 ;*** Document Date : 2003-08-30 |
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11 ;*** Document Status: BEING_PROCESSED |
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12 ;*** Document Author: Jacek |
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13 ;******************************************************************************** |
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14 |
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15 |
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16 |
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17 PRAGMA SRC_FILE_TIME "Thu Nov 29 09:43:40 2007" |
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18 PRAGMA LAST_MODIFIED "2003-08-30" |
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19 PRAGMA ID_AND_VERSION "8444.101.00.006" |
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20 |
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21 |
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22 |
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23 |
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24 |
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25 |
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26 VALTAB VAL_err |
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27 VAL 0 IP_ADDR_NOERROR "no error" |
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28 VAL 1 IP_ADDR_NOROUTE "no route to destination" |
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29 |
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30 VALTAB VAL_trans_prot |
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31 VAL 6 TCP_PROTOCOL "TCP protocol" |
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32 VAL 17 UDP_PROTOCOL "UDP protocol" |
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33 VAL 16 RAW_PROTOCOL "Chaos" |
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34 |
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35 |
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36 |
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37 |
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38 VAR dst_addr "destination address" L |
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39 |
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40 |
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41 VAR src_addr "source address" L |
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42 |
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43 |
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44 VAR err "error code" B |
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45 |
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46 VAL @p_ip - VAL_err@ |
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47 |
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48 VAR trans_prot "transport protocol" B |
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49 |
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50 VAL @p_ip - VAL_trans_prot@ |
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51 |
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52 |
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53 |
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54 |
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55 |
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56 |
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57 |
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58 ; IP_ADDR_REQ 0x3900 |
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59 ; IP_ADDR_CNF 0x7900 |
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60 |
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61 |
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63 PRIM IP_ADDR_REQ 0x3900 |
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64 { |
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65 dst_addr ; destination address |
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66 trans_prot ; transport protocol |
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67 } |
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68 |
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69 |
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70 |
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71 |
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72 |
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74 PRIM IP_ADDR_CNF 0x7900 |
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75 { |
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76 src_addr ; source address |
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77 err ; error code |
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78 trans_prot ; transport protocol |
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79 } |
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80 |
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81 |
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82 |
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83 |
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84 |
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85 |
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86 |
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87 |
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88 |