annotate src/g23m-aci/aci/dcm_handle_message.c @ 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>
date Thu, 08 Jun 2023 08:23:37 +0000
parents fa8dc04885d8
children
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1
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project : GSM-F&D (8411)
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4 | Modul : ACI
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2002 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Description : DCM handle_msg function, which is called when DCM
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18 | receives a new message by application or rAT_function.
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19 +-----------------------------------------------------------------------------
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20 */
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21
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22
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23 /*********************************** INCLUDES ********************************************/
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24 #include "aci_all.h"
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25 #include "dcm.h"
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26 #include "dcm_utils.h"
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27 #include "dcm_state.h"
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28 #include "dcm_env.h"
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29
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30 /**************************** LOCAL VARIABLE DEFINITION ***********************************/
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31 /**************************** EXTERN VARIABLE DEFINITION **********************************/
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32 extern T_DCM_ENV_CTRL_BLK *dcm_env_ctrl_blk_p;
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33
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34 /**************************** LOCAL FUCNTION DEFINITION ***********************************/
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35 /************************** EXTERN FUCNTION DEFINITION ************************************/
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36
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37
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38 /******************************************************************************************
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39 * Function : dcm_handle_message
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40 * Description : Called every time DCM is in WAITING state or
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41 * When receiving message from Application or rAT_function
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42 * Parameter : T_DCM_HDR
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43 * -Pointer on the header of the message.
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44 * Return : T_DCM_RET DCM
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45 * -DCM Result : DCM_OK, DCM_NOT_READY.
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46 * History : 0001 03/09/17 CJH Created
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47 ********************************************************************************************/
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48 T_DCM_RET dcm_handle_message(T_DCM_HDR *msg_p)
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49 {
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50 T_DCM_GET_CURRENT_CONN_REQ_MSG *current_conn_info;
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51
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52 TRACE_FUNCTION("DCM: dcm_handle_message()");
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53 dcm_display_message(msg_p->msg_id);
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54 dcm_dispay_state((U8)dcm_env_ctrl_blk_p->state[0],
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55 (U8)dcm_env_ctrl_blk_p->substate[0]);
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56
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57 if (msg_p != NULL)
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58 {
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59 /* get current conn req is always received regardless of current state..*/
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60 if(msg_p->msg_id == DCM_GET_CURRENT_CONN_REQ_MSG)
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61 {
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62 TRACE_EVENT("DCM: DCM_GET_CURRENT_CONN_REQ_MSG");
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63 current_conn_info = (T_DCM_GET_CURRENT_CONN_REQ_MSG*)msg_p;
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64 dcm_process_get_current_conn_event(current_conn_info);
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65 return DCM_OK;
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66 }
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67 switch (dcm_env_ctrl_blk_p->state[0])
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68 {
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69 case DCM_IDLE:
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70 TRACE_EVENT("DCM: DCM_IDLE") ;
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71 /* there is no current action */
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72 return dcm_idle(msg_p);
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73
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74 case DCM_ACTIVATING_CONN:
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75 TRACE_EVENT("DCM: DCM_ACTIVATING_CONN") ;
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76 /* An IP User have asked the opening of a connection */
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77 return dcm_activating_conn(msg_p);
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78
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79 case DCM_CONN_ACTIVATED:
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80 TRACE_EVENT("DCM: DCM_CONN_ACTIVATED") ;
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81 /* At leat, on connection is active */
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82 return dcm_conn_activated(msg_p);
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83
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84 case DCM_CLOSING_CONN:
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85 TRACE_EVENT("DCM: DCM_CLOSING_CONN") ;
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86 /* An IP User have asked the closing of a connection */
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87 return dcm_closing_conn(msg_p);
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88
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89 default:
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90 TRACE_EVENT("DCM: unknown state") ;
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91 return DCM_NOT_READY;
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92 }
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93 }
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94 else
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95 {
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96 TRACE_ERROR("DCM: NULL message") ;
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97 return DCM_INVALID_PARAMETER;
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98 }
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99 }