annotate src/g23m-aci/uart/uart_dtxf.c @ 112:fdecfb3bd860

.../drv_app/r2d/r2d_*.c: LCD include case fixes from Magnetite R2D is not used in Selenite, but we strive to keep the two source trees in sync as much as possible to reduce the diffs.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 13 Oct 2018 16:56:22 +0000
parents d393cd9bb723
children
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1
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul :
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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 UART and implements all
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18 | procedures and functions as described in the
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19 | SDL-documentation (DTX-statemachine)
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20 +-----------------------------------------------------------------------------
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21 */
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22
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23 #ifndef UART_DTXF_C
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24 #define UART_DTXF_C
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25 #endif /* !UART_DTXF_C */
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26
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27 #define ENTITY_UART
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28
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29 /*==== INCLUDES =============================================================*/
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30
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31 #ifdef WIN32
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32 #include "nucleus.h"
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33 #endif /* WIN32 */
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34 #include "typedefs.h" /* to get Condat data types */
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35 #include "vsi.h" /* to get a lot of macros */
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36 #include "macdef.h" /* to get a lot of macros */
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37 #include "custom.h"
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38 #include "gsm.h" /* to get a lot of macros */
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39 #include "cnf_uart.h" /* to get cnf-definitions */
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40 #include "mon_uart.h" /* to get mon-definitions */
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41 #include "prim.h" /* to get the definitions of used SAP and directions */
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42 #include "dti.h" /* to get dti lib */
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43 #include "pei.h" /* to get PEI interface */
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44 #ifdef FF_MULTI_PORT
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45 #include "gsi.h" /* to get definitions of serial driver */
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46 #else /* FF_MULTI_PORT */
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47 #ifdef _TARGET_
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48 #include "uart/serialswitch.h"
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49 #include "uart/traceswitch.h"
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50 #else /* _TARGET_ */
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51 #include "serial_dat.h" /* to get definitions of serial driver */
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52 #endif /* _TARGET_ */
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53 #endif /* FF_MULTI_PORT */
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54 #include "uart.h" /* to get the global entity definitions */
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55
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56 /*==== CONST ================================================================*/
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57
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58 /*
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59 * names of escape sequence detection state machine
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60 */
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61 #ifdef _SIMULATION_
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62 char * uart_esd_state_names[] =
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63 {
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64 "UART_ESD_NULL",
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65 "UART_ESD_CHAR_1",
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66 "UART_ESD_CHAR_2",
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67 "UART_ESD_CHAR_3",
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68 "UART_ESD_DETECTED"
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69 };
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70 #endif /* _SIMULATION_ */
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71
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72 /*==== LOCAL VARS ===========================================================*/
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73
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74 /*==== PRIVATE FUNCTIONS ====================================================*/
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75
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76 /*==== PUBLIC FUNCTIONS =====================================================*/
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77
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78
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79
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80 /*
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81 +------------------------------------------------------------------------------
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82 | Function : dtx_get_esd_state
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83 +------------------------------------------------------------------------------
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84 | Description : This function returns the current state of the Escape Sequence
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85 | Detection.
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86 |
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87 | Parameters : none
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88 |
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89 | Return : ESD State
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90 |
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91 +------------------------------------------------------------------------------
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92 */
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93 GLOBAL T_ESD_STATE dtx_get_esd_state()
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94 {
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95 TRACE_FUNCTION ("dtx_get_esd_state");
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96
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97 #ifdef _SIMULATION_
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98 TRACE_EVENT_P1 ("esd_state is [%s]",
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99 uart_esd_state_names[uart_data->dtx->esd_state]);
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100 #endif /* _SIMULATION_ */
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101
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102 return uart_data->dtx->esd_state;
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103 } /* dtx_get_esd_state() */
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104
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105
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106
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107 /*
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108 +------------------------------------------------------------------------------
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109 | Function : dtx_set_esd_state
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110 +------------------------------------------------------------------------------
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111 | Description : This function sets the state of the Escape Sequence Detection.
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112 |
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113 | Parameters : new ESD State
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114 |
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115 | Return : none
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116 |
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117 +------------------------------------------------------------------------------
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118 */
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119 GLOBAL void dtx_set_esd_state( T_ESD_STATE new_esd_state )
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120 {
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121 TRACE_FUNCTION ("dtx_set_esd_state");
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122
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123 #ifdef _SIMULATION_
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124 if(uart_data->dtx->esd_state != new_esd_state)
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125 {
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126 TRACE_EVENT_P2 ("esd_state [%s] -> [%s]",
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127 uart_esd_state_names[uart_data->dtx->esd_state],
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128 uart_esd_state_names[new_esd_state]);
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129 uart_data->dtx->esd_state = new_esd_state;
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130 uart_data->dtx->esd_state_name = uart_esd_state_names[new_esd_state];
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131 }
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132 else
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 TRACE_EVENT_P1 ("esd_state remains [%s]",
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 uart_esd_state_names[uart_data->dtx->esd_state]);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 #else /* _SIMULATION_ */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 if(uart_data->dtx->esd_state != new_esd_state)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 uart_data->dtx->esd_state = new_esd_state;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 #endif /* _SIMULATION_ */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 } /* dtx_set_esd_state() */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 /*
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 | Function : dtx_init
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 | Description : The function dtx_init() initializes the service DTX
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 |
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 | Parameters : none
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 |
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 GLOBAL void dtx_init ()
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 USHORT i;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 TRACE_FUNCTION( "dtx_init" );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 for( i = 0; i < UART_MAX_NUMBER_OF_CHANNELS; i++ )
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 /*
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 * select next instance of service DTX
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 uart_data->dtx = &( uart_data->dtx_base[i] );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 /*
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 * initialize service specific variables
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 uart_data->dtx->to_send_data = NULL;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 uart_data->dtx->cur_desc_size = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 uart_data->dtx->write_pos = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 uart_data->dtx->size_multiplier = 3;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 uart_data->dtx->st_flow = DTI_FLOW_ON;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 uart_data->dtx->st_line_sa = DTI_SA_ON;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 uart_data->dtx->st_line_sb = DTI_SB_ON;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 uart_data->dtx->st_break_len = DTI_BREAK_OFF;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 uart_data->dtx->detect_escape = TRUE;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 uart_data->dtx->lines_changed = FALSE;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 uart_data->dtx->receiving_state = UART_DTX_NOT_RECEIVING;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 uart_data->dtx->data_flow = UART_FLOW_DISABLED;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 dtx_set_esd_state( UART_ESD_NULL );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 uart_data->dtx->esd_guard_time = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 uart_data->dtx->esd_pos = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 uart_data->dtx->dti_dtx_state = DTI_CLOSED;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 INIT_STATE( UART_SERVICE_DTX , DTX_DEAD );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 } /* dtx_init() */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 /*
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 | Function : dtx_free_resources
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 | Description : The function dtx_free_resources() frees the currently allocated
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 | resources of the service DTX.
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 |
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 | Parameters : none
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 |
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 GLOBAL void dtx_free_resources ()
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 TRACE_FUNCTION( "dtx_free_resources()" );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 /*
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 * free all resources
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 if(uart_data->dtx->to_send_data)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 MFREE_DESC2( uart_data->dtx->to_send_data );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 uart_data->dtx->to_send_data = NULL;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 uart_data->dtx->cur_desc_size = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 uart_data->dtx->write_pos = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 } /* dtx_free_resources() */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 /*
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 | Function : dtx_exit
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 | Description : The function dtx_exit() frees the currently allocated
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 | resources of the service DTX.
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 |
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 | Parameters : none
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 |
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 +------------------------------------------------------------------------------
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 GLOBAL void dtx_exit ()
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 ULONG i;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 TRACE_FUNCTION( "dtx_exit()" );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 /*
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 * free all resources
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 */
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 if(uart_data->dtx->to_send_data)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 MFREE_DESC2( uart_data->dtx->to_send_data );
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 uart_data->dtx->to_send_data = NULL;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 uart_data->dtx->cur_desc_size = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 uart_data->dtx->write_pos = 0;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 if(uart_data->ker.tx_data_waiting)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 MFREE_DESC2(uart_data->ker.tx_data_waiting);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 uart_data->ker.tx_data_waiting = NULL;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 for(i = 0; i < UART_MAX_NUMBER_OF_CHANNELS; i++)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 if(uart_data->dlc_table[i].transmit_data)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 MFREE_DESC2(uart_data->dlc_table[i].transmit_data);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 uart_data->dlc_table[i].transmit_data = NULL;
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 }
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 if(uart_data->dlc_table[i].receive_data)
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 {
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 MFREE_DESC2(uart_data->dlc_table[i].receive_data);
d393cd9bb723 src/g23m-*: initial import from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 uart_data->dlc_table[i].receive_data = NULL;
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267 }
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268 }
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269
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270 } /* dtx_exit() */
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271
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272
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273 /*
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274 +------------------------------------------------------------------------------
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275 | Function : dtx_allocate_resources
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276 +------------------------------------------------------------------------------
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277 | Description : The function dtx_allocate_resources() allocates a new set of
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278 | resources for the service DTX.
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279 |
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280 | Parameters : none
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281 |
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282 +------------------------------------------------------------------------------
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283 */
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284 GLOBAL void dtx_allocate_resources ()
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285 {
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286 TRACE_FUNCTION( "dtx_allocate_resources()" );
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287
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288 /*
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289 * allocate a new descriptor
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290 * with a size of: size_multiplier * N1 (frame size)
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291 */
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292 uart_data->dtx->cur_desc_size = uart_data->n1 *
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293 uart_data->dtx->size_multiplier;
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294 MALLOC(uart_data->dtx->to_send_data,
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295 (USHORT)(sizeof(T_desc2) - 1 + uart_data->dtx->cur_desc_size));
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296 uart_data->dtx->to_send_data->len = 0;
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297 uart_data->dtx->to_send_data->size = 0;
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298 uart_data->dtx->to_send_data->offset = 0;
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299 uart_data->dtx->to_send_data->next = (ULONG) NULL;
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300 uart_data->dtx->write_pos = 0;
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301 } /* dtx_allocate_resources() */
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302
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303
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304
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305 /*
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306 +------------------------------------------------------------------------------
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307 | Function : dtx_calculate_size_multiplier
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308 +------------------------------------------------------------------------------
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309 | Description : The function dtx_calculate_size_multiplier() calculates the new
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310 | size_multiplier value.
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311 |
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312 | Parameters : desc_to_send - data descriptor that should be sent
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313 | data_flow - state of data flow befor we want to sent
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314 |
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315 +------------------------------------------------------------------------------
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316 */
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317 GLOBAL void dtx_calculate_size_multiplier (T_desc2* desc_to_send,
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318 T_DATA_FLOW_STATE data_flow)
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319 {
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320 TRACE_FUNCTION( "dtx_calculate_size_multiplier()" );
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321
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322 /*
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323 * calculate new size multiplier according to fillrate of buffer
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324 */
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325 if((uart_data->dtx->size_multiplier < UART_DTX_MAX_SIZE_MULTIPLIER ) &&
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326 (data_flow EQ UART_FLOW_DISABLED))
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327 {
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328 /*
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329 * buffer is rather full, so increase the multiplier
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330 */
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331 #ifdef _SIMULATION_
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332 TRACE_EVENT( " sig_rx_dtx_data_received_ind(): buffer size_multiplier increased " );
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333 #endif /* _SIMULATION_ */
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334 uart_data->dtx->size_multiplier++;
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335 }
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336 else if((uart_data->dtx->size_multiplier > 3) &&
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337 (data_flow EQ UART_FLOW_ENABLED) &&
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338 ((uart_data->dtx->cur_desc_size - desc_to_send->len) >
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339 ((USHORT)uart_data->n1 << 1)))
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340 {
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341 /*
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342 * buffer is rather empty, so decrease the multiplier
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343 */
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344 #ifdef _SIMULATION_
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345 TRACE_EVENT( " sig_rx_dtx_data_received_ind(): buffer size_multiplier decreased " );
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346 #endif /* _SIMULATION_ */
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347 uart_data->dtx->size_multiplier--;
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348 }
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349 } /* dtx_calculate_size_multiplier() */