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annotate src/g23m-aci/gdd_dio/gdd.h @ 646:8c74c177e914

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LICENSE: new terms
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 14 Apr 2020 20:09:37 +0000
parents 53929b40109c
children
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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 : BAT library
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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 : API of the Generic Data aDapter (GDD) which connects the
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18 | application domain with the protocol stack.
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19 +-----------------------------------------------------------------------------
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20 */
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21
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22 #ifndef GDD_H
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23 #define GDD_H
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24
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25 /*==== INCLUDES =============================================================*/
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26
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27 /*==== DEFINITIONS ==========================================================*/
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28
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29 /** Return and error values of GDD functions */
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30 enum GDD_RESULT_CODES
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31 {
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32 GDD_OK = 0, /* OK, no error occured */
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33 GDD_BUSY = 1, /* Currently busy */
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34 GDD_DIO_NOT_READY = 2, /* Dio not initialized or ready */
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35 GDD_NO_CONNECTION_SLOT = 3, /* Max number of connections already open */
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36 GDD_NO_BUF_AVAILABLE = 4, /* No buffer available (for sending) */
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37 GDD_INVALID_PARAMS = 5, /* Invalid input parameter */
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38 GDD_REQ_BUF_TOO_LARGE = 6, /* Requested buffer too large */
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39 GDD_INVALID_BUFFER = 7, /* Invalid buffer */
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40 GDD_ALREADY_INITIALIZED = 97, /* Instance already initialized */
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41 GDD_NO_MEMORY = 98, /* Memory allocation during initialization failed */
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42 GDD_INTERNAL_ERROR = 99 /* General error code for all other errors */
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43 };
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44
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45
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46 /*==== CONSTS ===============================================================*/
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47
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48 /** This size that's required for maintenance of one single connection.
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49 Only needed if the application must allocated memory to be passed into
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50 gdd_init(). */
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51 #define GDD_DIO_SIZEOF_CONDATA 64
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52
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53 /** Size of first buffer segment (used for internal purposes) */
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54 #define GDD_DIO_PID_SEG_SIZE 2
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57 /*==== TYPES =================================================================*/
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58
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59 /** Connection handle */
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60 typedef U32 T_GDD_CON_HANDLE;
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61
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62
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63 /** Identifier for the adapter instances - each instance corresponds to a
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64 DIO driver type */
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65 typedef enum
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66 {
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67 GDD_INST_NONE = -1,
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68 GDD_INST_BAT = 0, /* The BAT library */
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69 GDD_INST_APP, /* Application */
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70 GDD_INST_TCP, /* TCPIP entity */
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71 GDD_INST_SOCK, /* Socket library */
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72 GDD_INST_SOCKCFG, /* Socket library configuration */
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73
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74 /* Add new instances here and increase GDD_NUM_INSTS accordingly */
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75 GDD_NUM_INSTS,
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76 /* Maximum number of instances is defined by GDD_MAX_INST_ID */
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77 GDD_MAX_INST_ID = 255
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78 } T_GDD_INST_ID;
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79
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80
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81 /*
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82 * GDD data format - identicial to DIOv4 data format.
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83 */
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84 typedef struct
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85 {
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86 U8 _align0; /*< 0: 1> alignment */
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87 U8 _align1; /*< 1: 1> alignment */
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88 U16 c_data; /*< 2: 2> counter */
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89 U8 *ptr_data; /*< 4: 4> pointer to pointer to the first
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90 byte of the data buffer segment */
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91 } T_GDD_SEGMENT;
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92
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93 typedef struct
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94 {
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95 U16 length; /*< 0: 2> len of dio_ctrl */
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96 U8 _align0; /*< 2: 1> alignment */
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97 U8 c_segment; /*< 3: 1> counter of segments */
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98 T_GDD_SEGMENT *ptr_gdd_segment; /*< 4: 4> pointer to Structured Element */
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99 } T_GDD_BUF;
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100
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101
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102
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103 /** Capabilities of DIO BAT adapter, to be set by the client */
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104 typedef struct
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105 {
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106 U32 mtu_size;
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107 } T_GDD_DIO_CAP;
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108
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109
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110 /** Capabilities of the BAT adapter, to be set by the client */
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111 typedef union
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112 {
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113 T_GDD_DIO_CAP dio_cap;
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114 /* Capabilities for future adapter implementations to be added here */
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115 } T_GDD_CAP;
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116
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117
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118 /** GDD result type */
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119 typedef U16 GDD_RESULT;
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120
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121
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122 /** Signal types */
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123 typedef enum
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124 {
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125 GDD_SIGTYPE_CONNECTION_OPENED = 1, /* Connection is established and usable */
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126 GDD_SIGTYPE_CONNECTION_FAILED = 2, /* Connection failed or closed down unexpectedly */
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127 GDD_SIGTYPE_SEND_BUF_AVAILABLE = 3, /* A new send buffer becomes available after an
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128 unsuccessfull call to gdd_get_send_buffer */
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129 GDD_SIGTYPE_BUF_SENT = 4 /* Indicates that the last sent buffer has been
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130 successfully sent */
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131 } T_GDD_SIGTYPE;
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132
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133
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134
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135 /** Data associated with a GDD signal */
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136 typedef struct
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137 {
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138 T_GDD_SIGTYPE sig;
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139 } T_GDD_SIGNAL;
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140
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141
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142
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143 /***************************************************************************
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144 * Call-back function definitions (to be implemented by the client)
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145 ***************************************************************************/
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146
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147
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148 /*
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149 +------------------------------------------------------------------------------
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150 | Function : gdd_signal_cb
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151 +------------------------------------------------------------------------------
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152 | Description : The adapter calls this call-back function to send received data
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153 | to the client. The client must copy the data contained in the
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154 | buffer, since the buffer will be invalidated upon returning
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155 | from this function.
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156 | Alternatively, the client can indicate that he is currently
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157 | busy. In this case, he has to call gdd_signal_ready_rcv() at a
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158 | later time to invoke this call-back function again.
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159 |
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160 | Parameters : sig - Signal
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161 +------------------------------------------------------------------------------
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162 */
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163 typedef void (* T_GDD_SIGNAL_CB)
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164 ( T_GDD_CON_HANDLE con,
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165 T_GDD_SIGNAL sig );
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166
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167 /*
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168 +------------------------------------------------------------------------------
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169 | Function : gdd_received_data_cb
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170 +------------------------------------------------------------------------------
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171 | Description : The adapter calls this callback function to signal events to
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172 | the client.
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173 |
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174 | Parameters : sig - Signal
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175 |
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176 | Return : GDD_OK - Data was copied by client
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177 | GDD_BUSY - Client was busy and could not receive data.
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178 +------------------------------------------------------------------------------
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179 */
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180 typedef GDD_RESULT (* T_GDD_RECEIVE_DATA_CB)
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181 ( T_GDD_CON_HANDLE con,
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182 T_GDD_BUF * buf );
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183
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184
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185 /***************************************************************************
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186 * Function definitions
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187 ***************************************************************************/
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188
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189 /*
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190 +------------------------------------------------------------------------------
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191 | Function : gdd_init
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192 +------------------------------------------------------------------------------
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193 | Description : This optional function can be used to provide the house-keeping
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194 | memory required for the given adapter instance. On platforms
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195 | where memory allocation is available, the function might be
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196 | called with the parameter mem set to 0. In this case, it is
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197 | just use to limit the number of connections via the parameter
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198 | num_con.
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199 |
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200 | Parameters : inst - Instance identifier of the adapter
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201 | mem - Memory allocated by client for maintenance
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202 | of the connections (Input parameter).
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203 | If set to 0, the adapter will allocate
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204 | the memory itself.
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205 | num_con - Maximum number of connections
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206 |
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207 | Return : GDD_OK - Initialization successful
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208 | >GDD_OK - Error (see manual for error codes)
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209 +------------------------------------------------------------------------------
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210 */
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211 typedef GDD_RESULT (* T_GDD_INIT)
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212 ( T_GDD_INST_ID inst,
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213 void * mem,
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214 U16 num_con);
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215
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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216
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217 /*
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218 +------------------------------------------------------------------------------
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219 | Function : gdd_deinit
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220 +------------------------------------------------------------------------------
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221 | Description : This function de-initializes an adapter instance.
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222 | Any memory that the adapter has allocated internally is freed.
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223 |
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224 | Parameters : inst - Instance identifier of the adapter
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225 |
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226 | Return : GDD_OK - Initialization successful
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227 | >GDD_OK - Error (see manual for error codes)
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228 +------------------------------------------------------------------------------
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229 */
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230 typedef GDD_RESULT (* T_GDD_DEINIT)
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231 ( T_GDD_INST_ID inst);
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232
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diff changeset
233
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234 /*
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235 +------------------------------------------------------------------------------
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236 | Function : gdd_connect
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237 +------------------------------------------------------------------------------
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238 | Description : This function prepares a new connection for data transmission.
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239 | If the function succeeds, it will return a connection handle
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240 | in the parameter 'con_handle' to the caller. Each connection is
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241 | uniquely identified by its connection handle.
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242 |
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243 | Note : The connection cannot be used straight away. Instead, the
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244 | client receives a signal GDD_SIGTYPE_CONNECTION_OPENED when the
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245 | connection setup has been finished.
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246 |
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247 | Each open connection should be closed using the function
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248 | gdd_close() when it is not used any longer.
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249 |
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250 | Parameters : inst - Instance identifier of the adapter
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251 | con_handle - New handle to the adapter passed back to the
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252 | caller (output parameter).
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253 | cap - capabilities of the adapter
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254 | rcv_cb - Call-back for receiving data (provided by client)
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255 | sig_cb - Call-back for signals (provided by client)
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256 |
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257 | Return : GDD_OK - Connecting is setup and being created. The client
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258 | has to wait for signal GDD_SIGTYPE_CONNECTION_OPENED
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259 | before the connection is usable.
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260 | >GDD_OK - Error (see manual for error codes)
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261 +------------------------------------------------------------------------------
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262 */
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263 typedef GDD_RESULT (* T_GDD_CONNECT)
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264 ( T_GDD_INST_ID inst,
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265 T_GDD_CON_HANDLE * con_handle,
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266 const T_GDD_CAP * cap,
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267 T_GDD_RECEIVE_DATA_CB rcv_cb,
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268 T_GDD_SIGNAL_CB sig_cb );
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269
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270
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271 /*
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272 +------------------------------------------------------------------------------
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273 | Function : gdd_disconnect
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274 +------------------------------------------------------------------------------
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275 | Description : This function closes and deletes a connection.
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276 | The connection handle will not be valid any longer.
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277 |
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278 | Parameters : con_handle - Handle to the connection to be closed
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279 |
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280 | Return : GDD_OK - Initialization successful
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281 | >GDD_OK - Error (see manual for error codes)
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282 +------------------------------------------------------------------------------
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283 */
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284 typedef GDD_RESULT (* T_GDD_DISCONNECT)
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285 ( T_GDD_CON_HANDLE con_handle );
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286
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287
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288 /*
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289 +------------------------------------------------------------------------------
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290 | Function : gdd_get_send_buffer
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291 +------------------------------------------------------------------------------
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292 | Description : This function request a send buffer of a minimum size data_size
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293 | for sending on the connection specified with con. The buffer is
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294 | passed back in the parameter 'buf'.
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295 | After a successful call to this function, it is the
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296 | responsibility of the caller to subsequently fill the buffer
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297 | and call gdd_send_data(), before another call to
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298 | gdd_get_send_buffer() is done. In other words, the client must
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299 | make sure that calls to these two functions are synchronized.
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300 |
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301 | Parameters : con_handle - Connection handle
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302 | buf - Pointer to pointer to send buffer (out parameter)
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303 | data_size - Minimum size of requested buffer
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304 |
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305 | Return : GDD_OK - Initialization successful
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306 | >GDD_OK - Error (see manual for error codes)
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307 | GDD_NO_BUF_AVAILABLE - No buffer available. The client
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308 | will be notified with a signal
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309 | GDD_SIGTYPE_SEND_BUF_AVAILABLE when a
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310 | buffer is ready and can be requested.
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311 +------------------------------------------------------------------------------
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diff changeset
312 */
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313 typedef GDD_RESULT (* T_GDD_GET_SEND_BUFFER)
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314 ( T_GDD_CON_HANDLE con_handle,
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diff changeset
315 T_GDD_BUF ** buf,
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diff changeset
316 U16 data_size );
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317
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diff changeset
318
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diff changeset
319 /*
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diff changeset
320 +------------------------------------------------------------------------------
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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321 | Function : gdd_send_data
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diff changeset
322 +------------------------------------------------------------------------------
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323 | Description : This functions sends a buffer over the specified connection.
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diff changeset
324 | Please see also description of gdd_get_send_buffer().
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diff changeset
325 |
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diff changeset
326 |
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diff changeset
327 | Parameters : con_handle - Connection handle
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diff changeset
328 | buf - Buffer to be sent
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diff changeset
329 |
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diff changeset
330 | Return : GDD_OK - Initialization successful
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diff changeset
331 | >GDD_OK - Error (see manual for error codes)
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diff changeset
332 | GDD_INVALID_BUFFER - The buffer pointed to is incorrect, i.e.
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diff changeset
333 | not the one that was previously requested
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diff changeset
334 +------------------------------------------------------------------------------
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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diff changeset
335 */
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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diff changeset
336 typedef GDD_RESULT (* T_GDD_SEND_DATA)
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diff changeset
337 ( T_GDD_CON_HANDLE con,
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diff changeset
338 T_GDD_BUF * buf);
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diff changeset
339
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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diff changeset
340
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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diff changeset
341 /*
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diff changeset
342 +------------------------------------------------------------------------------
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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diff changeset
343 | Function : gdd_signal_ready_rcv
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diff changeset
344 +------------------------------------------------------------------------------
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345 | Description : This function is called from the client to indicate that he
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diff changeset
346 | is ready to receive. Typically, it is called from the client
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diff changeset
347 | when he becomes ready after a preceding result callback
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diff changeset
348 | (result_cb) was returned with GDD_BUSY.
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349 |
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350 | Parameters : con_handle - Connection handle
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diff changeset
351 +------------------------------------------------------------------------------
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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diff changeset
352 */
53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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diff changeset
353 typedef void (* T_GDD_SIGNAL_READY_RCV)
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diff changeset
354 ( T_GDD_CON_HANDLE con );
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diff changeset
355
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diff changeset
356
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diff changeset
357 /** GDD Function pointer table */
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diff changeset
358 typedef struct
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diff changeset
359 {
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diff changeset
360 T_GDD_INIT gdd_init;
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diff changeset
361 T_GDD_DEINIT gdd_deinit;
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diff changeset
362 T_GDD_CONNECT gdd_connect;
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diff changeset
363 T_GDD_DISCONNECT gdd_disconnect;
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diff changeset
364 T_GDD_GET_SEND_BUFFER gdd_get_send_buffer;
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parents:
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365 T_GDD_SEND_DATA gdd_send_data;
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366 T_GDD_SIGNAL_READY_RCV gdd_signal_ready_rcv;
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367 } T_GDD_FUNC;
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368
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369
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370 /** Needed for initialization of client of BAT adapter (BAT library) */
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371 extern T_GDD_FUNC gdd_func_dio;
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372
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373
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374 /***************************************************************************
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375 * Helper function definitions
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376 ***************************************************************************/
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377
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378 /*
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379 +------------------------------------------------------------------------------
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380 | Function : gdd_write_buf
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381 +------------------------------------------------------------------------------
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382 | Description : Write data from a client buffer into into a GDD buffer
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383 | The datagram protocol ID for the following link layer (PPP) is
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384 | set internally to 0x21 (IPv4). If you need to set the protocol
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385 | ID to something else, please use the function
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386 | gdd_write_buf_with_pid()..
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387 |
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388 | Parameters : src_buf - Source buffer (client owned)
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389 | src_size - Size of source buffer
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390 | dest_buf - Destination buffer
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391 |
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392 | Return : 0 if all bytes have been written to the destination buffer.
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393 | If not all bytes could be written, the return value is larger
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394 | than 0 and denotes the number of remaining (unwritten) bytes.
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395 | A negative return value indicates an error.
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396 +------------------------------------------------------------------------------
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397 */
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398 S32 gdd_write_buf(const U8 * src_buf, U16 src_size, T_GDD_BUF * dest_buf);
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399
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400 /*
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401 +------------------------------------------------------------------------------
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402 | Description : Write user data and a datagram protocol ID used by the link
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403 | layer (PPP) into a GDD buffer.
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404 |
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405 | Parameters : src_buf - Source buffer (client owned)
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406 | src_size - Size of source buffer
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407 | dest_buf - Destination buffer
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408 | protocol_id - datagram protocol identifier
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409 |
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410 | Return : 0 if all bytes have been written to the destination buffer.
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411 | If not all bytes could be written, the return value is larger
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412 | than 0 and denotes the number of remaining (unwritten) bytes.
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413 | A negative return value indicates an error.
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414 +------------------------------------------------------------------------------
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415 */
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416 S32 gdd_write_buf_with_pid(const U8 * src_buf, U16 src_size,
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417 T_GDD_BUF * dest_buf,U8 protocol_id);
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418
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419
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420 /*
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421 +------------------------------------------------------------------------------
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422 | Function : gdd_read_buf
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423 +------------------------------------------------------------------------------
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424 | Description : Read data from a GDD buffer into a client buffer.
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425 |
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426 | Parameters : src_buf - Source buffer received from GDD
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427 | dest_buf - Destination buffer (client owned)
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428 | dest_size - Size of destination buffer
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429 |
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430 | Return : 0 if all bytes have been copied into the destination buffer.
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431 | If not all bytes could be copied into the destination buffer,
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432 | the return value is larger than 0 and denotes the number of
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433 | remaining (unread) bytes. A negative return value indicase an
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434 | error.
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435 +------------------------------------------------------------------------------
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436 */
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437 S32 gdd_read_buf(const T_GDD_BUF * src_buf, U8 * dest_buf, U16 dest_size);
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438
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439
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440 #endif /* GDD_H */