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annotate src/g23m-aci/gdd_dio/gdd_dio_con_mgr.c @ 162:53929b40109c
src/g23m-aci: initial import from TCS3.2/LoCosto
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 11 Oct 2016 02:02:43 +0000 |
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1 /* |
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2 +----------------------------------------------------------------------------- |
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3 | File : gdd_dio_con_mgr.c |
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4 +----------------------------------------------------------------------------- |
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5 | Copyright 2002 Texas Instruments Berlin, AG |
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6 | All rights reserved. |
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7 | |
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8 | This file is confidential and a trade secret of Texas |
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9 | Instruments Berlin, AG |
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10 | The receipt of or possession of this file does not convey |
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11 | any rights to reproduce or disclose its contents or to |
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12 | manufacture, use, or sell anything it may describe, in |
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13 | whole, or in part, without the specific written consent of |
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14 | Texas Instruments Berlin, AG. |
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15 +----------------------------------------------------------------------------- |
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16 | Purpose : Implements connection management functions |
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17 +----------------------------------------------------------------------------- |
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18 */ |
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19 |
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20 |
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21 #define ENTITY_GDD_DIO |
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22 |
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23 /*==== INCLUDES =============================================================*/ |
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24 |
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25 #include "typedefs.h" /* to get Condat data types */ |
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26 #include "vsi.h" /* to get a lot of macros */ |
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27 #include "prim.h" /* to get the definitions of used SAP and directions */ |
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28 #include "dti.h" |
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29 |
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30 #include "gdd_dio.h" /* to get the global entity definitions */ |
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31 #include "gdd_dio_queue.h" |
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32 #include "gdd_dio_con_mgr.h" |
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33 |
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34 #include <string.h> |
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35 |
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36 |
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37 /*==== DEFINITIONS ==========================================================*/ |
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38 |
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39 #define ENTER_CRITICAL_SECTION(sem) if (gdd_enter_critical_section(sem))return -1; |
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40 #define LEAVE_CRITICAL_SECTION(sem) if (gdd_leave_critical_section(sem))return -1; |
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41 |
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42 |
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43 /*==== CONST ================================================================*/ |
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44 |
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45 /*==== LOCAL VARS ===========================================================*/ |
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46 |
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47 static T_HANDLE sem_GDD_DIO_CON; |
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48 |
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49 /*==== PRIVATE FUNCTIONS ====================================================*/ |
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50 |
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51 LOCAL int get_free_connection_slot(T_GDD_DIO_DATA * gdd_dio_data, |
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52 T_GDD_DIO_CON_DATA ** con_data /*output*/); |
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53 static void gdd_semaphore_err (void); |
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54 static int gdd_enter_critical_section (T_HANDLE sem); |
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55 static int gdd_leave_critical_section (T_HANDLE sem); |
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56 |
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57 |
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58 /*==== PUBLIC FUNCTIONS =====================================================*/ |
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59 |
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60 |
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61 /* Initializes the connection manager */ |
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62 |
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63 GLOBAL void gdd_dio_con_mgr_init (T_GDD_DIO_DATA * gdd_dio_data) |
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64 { |
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65 int i; |
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66 T_GDD_DIO_CON_DATA * con_data = gdd_dio_data->con_arr; |
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67 |
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68 TRACE_FUNCTION( "[GDD] conn_init()" ); |
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69 |
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70 for(i = 0; i < gdd_dio_data->max_con; ++i, ++con_data) |
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71 { |
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72 con_data->con_state = GDD_DIO_CON_DEAD; |
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73 } |
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74 |
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75 sem_GDD_DIO_CON = vsi_s_open (VSI_CALLER "SEM_GDD_CON",1); |
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76 if (sem_GDD_DIO_CON EQ VSI_ERROR) |
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77 vsi_o_ttrace(VSI_CALLER TC_EVENT, "can´t open semaphore \"SEM_GDD_CON\""); |
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78 } |
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79 |
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80 |
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81 /* Setup a new DIO connection */ |
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82 |
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83 GLOBAL GDD_RESULT gdd_dio_con_mgr_new |
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84 ( T_GDD_DIO_DATA * gdd_dio_data, |
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85 T_GDD_CON_HANDLE * con_handle, |
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86 const T_GDD_CAP * cap, |
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87 T_GDD_RECEIVE_DATA_CB rcv_cb, |
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88 T_GDD_SIGNAL_CB sig_cb ) |
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89 { |
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90 T_GDD_DIO_CON_DATA * con_data = 0; |
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91 |
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92 TRACE_FUNCTION("[GDD] conn_new()"); |
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93 |
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94 if(get_free_connection_slot(gdd_dio_data, &con_data) NEQ 0) |
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95 { |
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96 TRACE_ERROR("Failed to get new connection slot"); |
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97 return GDD_NO_CONNECTION_SLOT; |
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98 } |
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99 |
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100 gdd_dio_queue_clear(&con_data->rx_queue); |
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101 gdd_dio_queue_clear(&con_data->tx_queue); |
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102 |
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103 con_data->wait_send_buf = FALSE; |
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104 |
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105 con_data->rcv_cb = rcv_cb; |
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106 con_data->sig_cb = sig_cb; |
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107 |
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108 con_data->dio_cap.device_type = DIO_TYPE_PKT; |
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109 con_data->dio_cap.device_flags = 0; |
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110 con_data->dio_cap.mtu_control = 0; |
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parents:
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111 con_data->dio_cap.mtu_data = (U16)((T_GDD_DIO_CAP *)cap)->mtu_size; |
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112 con_data->dio_cap.driver_name = "GDD"; |
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parents:
diff
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113 |
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114 (*con_handle) = con_data->dio_device; |
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parents:
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115 |
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116 |
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117 gdd_dio_send_signal_to_dio(con_data, DRV_SIGTYPE_CONNECT); |
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parents:
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118 |
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119 return GDD_OK; |
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parents:
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120 } |
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parents:
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121 |
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parents:
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122 |
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parents:
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123 /* Close a connection */ |
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124 |
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125 GLOBAL GDD_RESULT gdd_dio_con_mgr_close |
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126 ( T_GDD_CON_HANDLE con_handle ) |
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127 { |
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128 T_GDD_INST_ID inst = (T_GDD_INST_ID)inst_num_from_dev_id(con_handle); |
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129 T_GDD_DIO_CON_DATA * con_data; |
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130 |
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131 TRACE_FUNCTION( "[GDD] gdd_dio_con_mgr_close()" ); |
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132 |
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133 con_data = get_con_data(&(gdd_dio_data_base[inst]), con_handle); |
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134 if(con_data EQ NULL) |
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135 { |
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|
136 TRACE_ERROR("Failed to get connection data"); |
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parents:
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137 return GDD_INTERNAL_ERROR; |
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parents:
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|
138 } |
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parents:
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139 |
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140 con_data->con_state = GDD_DIO_CON_CLOSE; |
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parents:
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141 |
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parents:
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|
142 gdd_dio_send_signal_to_dio(con_data, DRV_SIGTYPE_DISCONNECT); |
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parents:
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143 |
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parents:
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144 return GDD_OK; |
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parents:
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|
145 } |
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parents:
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|
146 |
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parents:
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147 |
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parents:
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148 /* Mark a connection as dead */ |
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parents:
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149 |
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parents:
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|
150 GDD_RESULT gdd_dio_con_mgr_mark_dead( T_GDD_CON_HANDLE con_handle ) |
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parents:
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|
151 { |
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152 T_GDD_INST_ID inst = (T_GDD_INST_ID)inst_num_from_dev_id(con_handle); |
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parents:
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|
153 T_GDD_DIO_CON_DATA * con_data; |
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parents:
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154 |
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parents:
diff
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|
155 TRACE_FUNCTION( "[GDD] gdd_dio_con_mgr_mark_dead()" ); |
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parents:
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|
156 |
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parents:
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157 con_data = get_con_data(&(gdd_dio_data_base[inst]), con_handle); |
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parents:
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158 if(con_data EQ NULL) |
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parents:
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|
159 { |
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parents:
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|
160 TRACE_ERROR("Failed to get connection data"); |
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parents:
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|
161 return GDD_INTERNAL_ERROR; |
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parents:
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|
162 } |
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parents:
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|
163 |
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parents:
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|
164 /* Clear the connection slot |
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parents:
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|
165 - it's sufficient to set state and nullify handle */ |
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parents:
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|
166 con_data->con_state = GDD_DIO_CON_DEAD; |
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parents:
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|
167 |
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parents:
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|
168 return GDD_OK; |
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parents:
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|
169 } |
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parents:
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|
170 |
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parents:
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|
171 |
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parents:
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|
172 /* Check if any of the connections is (still) open or in connecting state. */ |
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parents:
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|
173 |
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parents:
diff
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|
174 BOOL gdd_dio_con_mgr_has_open_connection |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
175 ( const T_GDD_DIO_DATA * gdd_dio_data ) |
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parents:
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|
176 { |
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parents:
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177 int i; |
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178 T_GDD_DIO_CON_DATA * con_data = gdd_dio_data->con_arr; |
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179 |
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parents:
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|
180 TRACE_FUNCTION( "[GDD] gdd_dio_con_mgr_has_open_connection()" ); |
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parents:
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|
181 |
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parents:
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|
182 for(i = 0; i < gdd_dio_data->max_con; ++i, ++con_data) |
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parents:
diff
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|
183 { |
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parents:
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|
184 if(con_data->con_state EQ GDD_DIO_CON_READY || |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
185 con_data->con_state EQ GDD_DIO_CON_SENDING || |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
186 con_data->con_state EQ GDD_DIO_CON_CONNECT) |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
187 { |
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|
188 return TRUE; |
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parents:
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|
189 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
190 } |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
191 return FALSE; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
192 } |
53929b40109c
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parents:
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|
193 |
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parents:
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|
194 |
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parents:
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195 /* Get the connection data for a given instance & handle */ |
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parents:
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|
196 |
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197 GLOBAL T_GDD_DIO_CON_DATA * get_con_data(const T_GDD_DIO_DATA * gdd_dio_data, |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
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|
198 T_GDD_CON_HANDLE con_handle) |
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parents:
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|
199 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
200 int i; |
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parents:
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|
201 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
202 /* Deliberately NO tracing */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
203 |
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parents:
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204 for(i=0; i<gdd_dio_data->max_con; ++i) |
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parents:
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|
205 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
206 if(gdd_dio_data->con_arr[i].dio_device EQ con_handle) |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
207 return &gdd_dio_data->con_arr[i]; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
208 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
209 return NULL; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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|
210 } |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
211 |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
212 |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
213 |
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214 /* Get the connection data for a given handle only */ |
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215 |
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216 GLOBAL T_GDD_DIO_CON_DATA * get_con_data_from_handle(T_GDD_CON_HANDLE con_handle) |
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217 { |
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218 T_GDD_INST_ID inst; |
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219 |
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220 /* Deliberately NO tracing */ |
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221 |
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222 inst = (T_GDD_INST_ID)inst_num_from_dev_id(con_handle); |
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223 |
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224 if(inst < 0 || inst >= GDD_NUM_INSTS) |
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225 { |
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226 return 0; |
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227 } |
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228 |
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229 return get_con_data(&(gdd_dio_data_base[inst]), con_handle); |
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230 } |
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231 |
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232 |
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233 /* Send a DIO signal via the specificed connection */ |
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234 |
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235 void gdd_dio_send_signal_to_dio |
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236 (T_GDD_DIO_CON_DATA * con_data, U16 sig_type) |
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237 { |
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238 T_DRV_SIGNAL drv_signal; |
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239 T_GDD_DIO_DATA * inst_data; |
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240 char * sig_type_str; |
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241 |
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242 TRACE_USER_CLASS(TC_FUNC_DATA_FLOW, "[GDD] gdd_dio_send_signal_to_dio()"); |
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243 |
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244 inst_data = &gdd_dio_data_base[inst_num_from_dev_id(con_data->dio_device)]; |
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245 |
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246 switch (sig_type) |
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247 { |
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248 case DRV_SIGTYPE_WRITE: sig_type_str = "DRV_SIGTYPE_WRITE"; break; |
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249 case DRV_SIGTYPE_READ: sig_type_str = "DRV_SIGTYPE_READ"; break; |
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250 case DRV_SIGTYPE_CONNECT: sig_type_str = "DRV_SIGTYPE_CONNECT"; break; |
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251 case DRV_SIGTYPE_DISCONNECT: sig_type_str = "DRV_SIGTYPE_DISCONNECT"; break; |
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252 default: sig_type_str = "ununsed signal type"; break; |
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253 } |
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254 |
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255 TRACE_USER_CLASS_P2(TC_SIGNALS, "[GDD] Sending signal %s to DIO IL (con_handle=0x%4x)", sig_type_str, con_data->dio_device); |
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256 |
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257 drv_signal.SignalType = sig_type; |
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258 drv_signal.DrvHandle = inst_data->drv_handle; |
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259 drv_signal.DataLength = sizeof(U32); |
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260 drv_signal.UserData = &(con_data->dio_device); |
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261 (*(inst_data->signal_callback))(&drv_signal); |
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262 } |
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263 |
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264 |
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265 /*==== PRIVATE FUNCTIONS =====================================================*/ |
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266 |
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267 /* |
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268 +------------------------------------------------------------------------------ |
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269 | Function : get_free_connection_slot |
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270 +------------------------------------------------------------------------------ |
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271 | Description : Find the next free connection slot for given instance. |
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272 | |
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273 | Parameters : gdd_dio_data - pointer to instance data |
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274 | con_data - pointer to pointer to connection data (output) |
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275 | |
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276 | Returns : 0 - Success (con_data has been set) |
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277 | -1 - Failed (no slot found) |
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278 +------------------------------------------------------------------------------ |
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279 */ |
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280 LOCAL int get_free_connection_slot(T_GDD_DIO_DATA * gdd_dio_data, |
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281 T_GDD_DIO_CON_DATA ** con_data /*output*/) |
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282 { |
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283 int i; |
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284 |
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285 TRACE_FUNCTION( "[GDD] get_free_connection_slot()" ); |
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286 |
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287 ENTER_CRITICAL_SECTION(sem_GDD_DIO_CON); |
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288 |
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289 for(i = 0; i < gdd_dio_data->max_con; ++i) |
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290 { |
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291 if(gdd_dio_data->device_range_start+i <= gdd_dio_data->device_range_end) |
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292 { |
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293 if(gdd_dio_data->con_arr[i].con_state EQ GDD_DIO_CON_DEAD) |
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294 { |
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295 gdd_dio_data->con_arr[i].dio_device = gdd_dio_data->device_range_start+i; |
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296 *con_data = &(gdd_dio_data->con_arr[i]); |
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297 (*con_data)->con_state = GDD_DIO_CON_CONNECT; |
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298 |
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299 LEAVE_CRITICAL_SECTION(sem_GDD_DIO_CON); |
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300 return 0; |
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301 } |
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302 } |
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303 } |
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304 |
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305 LEAVE_CRITICAL_SECTION(sem_GDD_DIO_CON); |
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306 |
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307 return -1; |
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308 } |
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309 |
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310 |
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311 /* |
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312 +------------------------------------------------------------------------------ |
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313 | Function : gdd_semaphore_err |
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314 +------------------------------------------------------------------------------ |
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315 | Description : Handle a semaphore error |
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316 +------------------------------------------------------------------------------ |
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317 */ |
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318 static void gdd_semaphore_err (void) |
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319 { |
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320 static UCHAR out = 0; |
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321 if (!out) |
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322 { |
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323 out = 1; |
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324 vsi_o_ttrace(VSI_CALLER TC_EVENT, "semaphore error"); |
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325 } |
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parents:
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326 } |
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327 |
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328 |
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329 /* |
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330 +------------------------------------------------------------------------------ |
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331 | Function : gdd_enter_critical_section |
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332 +------------------------------------------------------------------------------ |
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333 | Description : Enters a critical section. |
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334 | |
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parents:
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335 | Parameters : sem - Semaphore handle |
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parents:
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336 | |
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337 | Returns : 0 - Success |
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338 | -1 - Failure |
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339 +------------------------------------------------------------------------------ |
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parents:
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340 */ |
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341 static int gdd_enter_critical_section (T_HANDLE sem) |
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parents:
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342 { |
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parents:
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343 if (vsi_s_get (VSI_CALLER sem) NEQ VSI_OK) |
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parents:
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344 { |
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345 gdd_semaphore_err(); |
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346 return -1; |
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347 } |
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parents:
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348 else |
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349 { |
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parents:
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350 return 0; |
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parents:
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|
351 } |
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parents:
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|
352 } |
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parents:
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|
353 |
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parents:
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354 |
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parents:
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355 /* |
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parents:
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|
356 +------------------------------------------------------------------------------ |
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parents:
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357 | Function : gdd_leave_critical_section |
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parents:
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|
358 +------------------------------------------------------------------------------ |
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parents:
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|
359 | Description : Leaves a critical section. |
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parents:
diff
changeset
|
360 | |
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parents:
diff
changeset
|
361 | Parameters : sem - Semaphore handle |
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parents:
diff
changeset
|
362 | |
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parents:
diff
changeset
|
363 | Returns : 0 - Success |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
364 | -1 - Failure |
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parents:
diff
changeset
|
365 +------------------------------------------------------------------------------ |
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parents:
diff
changeset
|
366 */ |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
367 static int gdd_leave_critical_section (T_HANDLE sem) |
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parents:
diff
changeset
|
368 { |
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parents:
diff
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|
369 if (vsi_s_release (VSI_CALLER sem) NEQ VSI_OK) |
53929b40109c
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parents:
diff
changeset
|
370 { |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
371 gdd_semaphore_err(); |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
372 return -1; |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
373 } |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
374 else |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
375 { |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
376 return 0; |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
377 } |
53929b40109c
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Mychaela Falconia <falcon@freecalypso.org>
parents:
diff
changeset
|
378 } |