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annotate src/g23m-gprs/sndcp/sndcp_ndp.c @ 183:219afcfc6250

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src/g23m-gprs: initial import from TCS3.2/LoCosto
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 13 Oct 2016 04:24:13 +0000
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183
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project : GPRS (8441)
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4 | Modul : sndcp_ndp.c
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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 | Purpose : This modul is part of the entity SNDCP and implements all
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18 | functions to handles the incoming primitives as described in
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19 | the SDL-documentation (ND-statemachine)
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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 #define ENTITY_SNDCP
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25
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26 /*==== INCLUDES =============================================================*/
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27
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28 #include "typedefs.h" /* to get Condat data types */
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29 #include "vsi.h" /* to get a lot of macros */
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30 #include "macdef.h"
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31 #include "prim.h" /* to get the definitions of used SAP and directions */
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32
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33 #include "dti.h"
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34
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35 #include "sndcp.h" /* to get the global entity definitions */
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36 #include "sndcp_f.h" /* to get the functions to access the global arrays*/
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37
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38 #include "sndcp_sds.h" /* to get signals to sd service */
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39 #include "sndcp_sdas.h" /* to get signals to sda service */
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40 #include "sndcp_sdf.h"
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41
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42
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43
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44 /*==== CONST ================================================================*/
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45
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46 /*==== LOCAL VARS ===========================================================*/
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47
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48 /*==== PRIVATE FUNCTIONS ====================================================*/
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49
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50 /*==== PUBLIC FUNCTIONS =====================================================*/
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51
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52 /*
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53 +------------------------------------------------------------------------------
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54 | Function : nd_dti_buffer_ready
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55 +------------------------------------------------------------------------------
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56 | Description : Is called from DTI callback function when reason was
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57 | DTI_REASON_TX_BUFFER_READY. Does the same as old
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58 | nd_sn_get(unit)data_req.
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59 |
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60 | Parameters : affected nsapi
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61 |
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62 +------------------------------------------------------------------------------
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63 */
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64 GLOBAL void nd_dti_buffer_ready (UBYTE nsapi)
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65 {
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66 UBYTE sapi = 0;
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67 BOOL used = FALSE;
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68
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69 TRACE_FUNCTION( "nd_dti_buffer_ready" );
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70
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71 /*
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72 * set service instance according to nsapi in primitive
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73 */
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74 sndcp_data->nd = & sndcp_data->nd_base[nsapi];
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75
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76 switch( GET_STATE( ND ) )
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77 {
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78 case ND_DEFAULT:
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79 case ND_RECOVER:
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80 case ND_SUSPEND:
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81 /*
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82 * Is NSAPI used at all?
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83 */
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84 sndcp_is_nsapi_used(nsapi, &used);
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85 if (used) {
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86 BOOL ack = FALSE;
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87 sndcp_get_nsapi_ack(nsapi, &ack);
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88 if (ack) {
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89 sndcp_get_nsapi_sapi(nsapi, &sapi);
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90 sig_nd_sda_getdata_req(sapi, nsapi);
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91 } else {
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92 sndcp_get_nsapi_sapi(nsapi, &sapi);
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93 sig_nd_sd_getunitdata_req(sapi, nsapi);
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94 }
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95 /* dti ready called from mg_sm_activate_ind again */
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96 TRACE_EVENT("FLOW CONTROL falg is set to false");
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97 sndcp_data->tcp_flow = FALSE;
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98 }
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99 else
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100 {
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101 sndcp_data->nsapi_rcv_rdy_b4_used |= 0x001 << nsapi;
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102 TRACE_EVENT("FLOW CONTROL falg is set to true");
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103 /* We have received a flow control before receiving a snsm_activate_ind */
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104 sndcp_data->tcp_flow = TRUE;
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105 }
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106 break;
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107 default:
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108 TRACE_ERROR( "Function nd_dti_buffer_ready unexpected" );
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109 break;
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110 }
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111
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112 } /* nd_buffer_ready() */