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annotate src/g23m-aci/gdd_dio/gdd_dio_queue.c @ 597:f18b29e27be5

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First attempt at MCSI voice path automatic switching The function is implemented at the ACI level in both aci2 and aci3, successfully avoids triggering the DSP bug on the first call, but the shutdown of MCSI upon call completion is not working properly yet in either version.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 27 Mar 2019 22:18:35 +0000
parents 53929b40109c
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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53929b40109c src/g23m-aci: initial import from TCS3.2/LoCosto
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | File : gdd_dio_queue.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 the queue functions for the DIO buffer FIFO
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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
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28 #include <string.h> /* for memset */
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29
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30 #include "gdd_dio_queue.h"
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31
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32 /*==== CONST ================================================================*/
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33
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34 /*==== LOCAL VARS ===========================================================*/
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35
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36 /*==== PRIVATE FUNCTIONS ====================================================*/
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37
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38 /*==== PUBLIC FUNCTIONS =====================================================*/
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39
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40
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41 GLOBAL void gdd_dio_queue_clear(T_GDD_BUF_QUEUE *queue)
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42 {
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43 queue->next_in = 0;
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44 queue->next_out = 0;
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45 memset(queue->elems, 0, sizeof(T_dio_buffer *) * GDD_MAX_DIO_BUF);
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46 }
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47
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48
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49 BOOL gdd_dio_queue_is_empty(const T_GDD_BUF_QUEUE *queue)
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50 {
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51 return (queue->next_in == queue->next_out) &&
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52 (0 == queue->elems[queue->next_out]);
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53 }
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54
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55
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56 GLOBAL BOOL gdd_dio_queue_is_full(const T_GDD_BUF_QUEUE *queue)
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57 {
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58 return (queue->next_in == queue->next_out) &&
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59 !(0 == queue->elems[queue->next_out]);
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60 }
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61
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62
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63 GLOBAL BOOL gdd_dio_dequeue(T_GDD_BUF_QUEUE *queue, T_dio_buffer **elem)
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64 {
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65 if(gdd_dio_queue_is_empty(queue))
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66 {
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67 return FALSE;
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68 }
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69 else
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70 {
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71 (*elem) = queue->elems[queue->next_out];
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72 queue->elems[queue->next_out] = 0;
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73 ++(queue->next_out);
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74 if(queue->next_out EQ GDD_MAX_DIO_BUF)
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75 queue->next_out = 0;
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76 return TRUE;
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77 }
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78 }
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79
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80 GLOBAL BOOL gdd_dio_queue_peek_next_for_dequeue
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81 (const T_GDD_BUF_QUEUE *queue, /*out*/T_dio_buffer **elem)
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82 {
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83 if(gdd_dio_queue_is_empty(queue))
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84 {
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85 return FALSE;
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86 }
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87 else
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88 {
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89 (*elem) = queue->elems[queue->next_out];
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90 return TRUE;
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91 }
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92 }
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93
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94 GLOBAL BOOL gdd_dio_enqueue(T_dio_buffer *elem, T_GDD_BUF_QUEUE *queue, /*out*/U16 *pos)
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95 {
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96 if(gdd_dio_queue_is_full(queue))
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97 {
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98 return FALSE;
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99 }
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100 else
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101 {
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102 queue->elems[queue->next_in] = elem;
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103 (*pos) = queue->next_in;
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104 ++(queue->next_in);
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105 if(queue->next_in EQ GDD_MAX_DIO_BUF)
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106 queue->next_in = 0;
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107 return TRUE;
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108 }
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109 }
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110
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111
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112 GLOBAL void gdd_dio_queue_peek(const T_GDD_BUF_QUEUE *queue, U16 pos, /*out*/T_dio_buffer **elem)
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113 {
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114 (*elem) = queue->elems[pos];
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115 }