annotate chipsetsw/layer1/gtt_include/ctm/fifo.h @ 192:76d979acae2e

tpudrv12.c: initial import from FreeCalypso/gcc
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 08 Jun 2016 03:32:07 +0000
parents 509db1a7b7b8
children
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1 /*
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2 *******************************************************************************
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3 *
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
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5 * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100
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6 *
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7 * The program(s) may be used and/or copied only with the
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8 * written permission from Ericsson or in accordance
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9 * with the terms and conditions stipulated in the agreement or
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10 * contract under which the program(s) have been supplied.
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11 *
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12 *******************************************************************************
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13 *
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14 * File : fifo.h
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15 * Author : Matthias Doerbecker
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16 * Tested Platforms : DEC Alpha 250 4/266 (OSF/1 3.2)
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17 * Description : File I/O for float and double (32/64 bit signed)
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18 * values.
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19 *
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20 * Revision history
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21 *
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22 * Rev Date Name Description
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23 * -------------------------------------------------------------------
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24 * pA1 12-MAR-97 M.Doerbecker initial version
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25 * (based on shortio.h pA2)
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26 *
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27 *******************************************************************************
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28 */
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29 #ifndef fifo_h
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30 #define fifo_h "$Id: $"
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31
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32 /*
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33 *******************************************************************************
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34 * INCLUDE FILES
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35 *******************************************************************************
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36 */
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37
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38 #include "ctm_typedefs.h"
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39 /*
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40 *******************************************************************************
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41 * DEFINITION OF CONSTANTS
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42 *******************************************************************************
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43 */
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44
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45 /*
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46 *******************************************************************************
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47 * DEFINITION OF DATA TYPES
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48 *******************************************************************************
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49 */
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50
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51 // typedef float Float;
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52 // typedef char Char;
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53
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54 typedef enum {SHORTINT_FIFO, FLOAT_FIFO, CHAR_FIFO} fifo_type_t;
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55
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56
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57 /* fifo_state_t is the state variable type that is used for both types */
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58 /* of fifo structures: Shortint_fifo as well as Float_fifo. */
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59
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60 typedef struct
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61 {
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62 WORD16 *buffer_Shortint; /* buffer for Shortint_fifo_xxx() */
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63 Float *buffer_Float; /* buffer for Float_fifo_xxx() */
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64 Char *buffer_Char; /* buffer for Char_fifo_xxx() */
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65 WORD32 length_buffer; /* maximum length of the fifo buffer */
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66 WORD32 num_entries_actual;/* actual number of elements in fifo */
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67 fifo_type_t fifo_type; /* either SHORTINT_FIFO or FLOAT_FIFO */
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68 WORD32 magic_number; /* for detecting wheter fifo is initialized */
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69 }
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70 fifo_state_t;
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71
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72 /*
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73 *******************************************************************************
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74 * DECLARATION OF PROTOTYPES
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75 *******************************************************************************
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76 */
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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 : Shortint_fifo_init
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83 * In : length_fifo determines maximukm length of the buffer
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84 * Out : fifo_state initialized state variable
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85 * Calls : calloc, fprintf, exit
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86 * Tables : <none>
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87 * Compile Defines : <none>
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88 * Return : 0 on success, 1 in case of an error
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89 * Information : initialization of a fifo structure for buffering
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90 * Shortint data
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91 *
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92 *******************************************************************************
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93 */
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94
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95 int Shortint_fifo_init(fifo_state_t *fifo_state,
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96 WORD32 length_fifo);
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97
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98
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99
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100 /*
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101 *******************************************************************************
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102 *
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103 * Function : Shortint_fifo_reset
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104 * In :
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105 * In/Out : fifo_state initialized state variable
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106 * Calls : <none>
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107 * Tables : <none>
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108 * Compile Defines : <none>
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109 * Return : 0 on success, 1 in case of an error
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110 * Information : reset of the fifo structure, i.e. all buffered
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111 * elements are removed
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112 *
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113 *******************************************************************************
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114 */
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115
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116 int Shortint_fifo_reset(fifo_state_t *fifo_state);
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117
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118
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119
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120 /*
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121 *******************************************************************************
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122 *
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123 * Function : Shortint_fifo_exit
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124 * In : length_fifo determines maximum length of the buffer
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125 * In/Out : fifo_state initialized state variable
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126 * Calls : free, fprintf, exit
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127 * Tables : <none>
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128 * Compile Defines : <none>
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129 * Return : 0 on success, 1 in case of an error
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130 * Information : shuts down fifo structure, frees allocated memory
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131 *
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132 *******************************************************************************
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133 */
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134
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135 int Shortint_fifo_exit(fifo_state_t *fifo_state);
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136
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137
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138
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139 /*
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140 *******************************************************************************
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141 *
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142 * Function : Shortint_fifo_push
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143 * In : elements_to_push vector containing the elements
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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144 * In num_elements_to_push number of the elements
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Space Falcon <falcon@ivan.Harhan.ORG>
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145 * In/Out : fifo_state state variable
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Space Falcon <falcon@ivan.Harhan.ORG>
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146 * Calls : fprintf, exit
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Space Falcon <falcon@ivan.Harhan.ORG>
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147 * Tables : <none>
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Space Falcon <falcon@ivan.Harhan.ORG>
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148 * Compile Defines : <none>
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Space Falcon <falcon@ivan.Harhan.ORG>
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149 * Return : 0 on success, 1 in case of an error
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Space Falcon <falcon@ivan.Harhan.ORG>
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150 * Information : pushes elements into the fifo
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Space Falcon <falcon@ivan.Harhan.ORG>
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151 *
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Space Falcon <falcon@ivan.Harhan.ORG>
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152 *******************************************************************************
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Space Falcon <falcon@ivan.Harhan.ORG>
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153 */
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Space Falcon <falcon@ivan.Harhan.ORG>
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154
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Space Falcon <falcon@ivan.Harhan.ORG>
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155 int Shortint_fifo_push(fifo_state_t *fifo_state,
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Space Falcon <falcon@ivan.Harhan.ORG>
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156 WORD16 *elements_to_push,
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Space Falcon <falcon@ivan.Harhan.ORG>
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157 WORD32 num_elements_to_push);
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Space Falcon <falcon@ivan.Harhan.ORG>
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158
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Space Falcon <falcon@ivan.Harhan.ORG>
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159
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
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160 /*
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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161 *******************************************************************************
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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162 *
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Space Falcon <falcon@ivan.Harhan.ORG>
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163 * Function : Shortint_fifo_pop
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Space Falcon <falcon@ivan.Harhan.ORG>
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164 * In : num_elements_to_pop number of the elements
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Space Falcon <falcon@ivan.Harhan.ORG>
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165 * Out : popped_elements vector containing the elements
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Space Falcon <falcon@ivan.Harhan.ORG>
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166 * In/Out : fifo_state state variable
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Space Falcon <falcon@ivan.Harhan.ORG>
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167 * Calls : fprintf, exit
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168 * Tables : <none>
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Space Falcon <falcon@ivan.Harhan.ORG>
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169 * Compile Defines : <none>
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Space Falcon <falcon@ivan.Harhan.ORG>
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170 * Return : 0 on success, 1 in case of an error
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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171 * Information : pops elements from the fifo
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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172 *
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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173 *******************************************************************************
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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174 */
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Space Falcon <falcon@ivan.Harhan.ORG>
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175
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Space Falcon <falcon@ivan.Harhan.ORG>
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176 int Shortint_fifo_pop(fifo_state_t *fifo_state,
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177 WORD16 *popped_elements,
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178 WORD32 num_elements_to_pop);
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179
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Space Falcon <falcon@ivan.Harhan.ORG>
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180
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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181 /*
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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182 *******************************************************************************
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Space Falcon <falcon@ivan.Harhan.ORG>
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183 *
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Space Falcon <falcon@ivan.Harhan.ORG>
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184 * Function : Shortint_fifo_peek
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Space Falcon <falcon@ivan.Harhan.ORG>
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185 * In : num_elements_to_peek number of the elements
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Space Falcon <falcon@ivan.Harhan.ORG>
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186 * Out : peeked_elements vector containing the elements
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Space Falcon <falcon@ivan.Harhan.ORG>
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187 * In/Out : fifo_state state variable
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Space Falcon <falcon@ivan.Harhan.ORG>
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188 * Calls : fprintf, exit
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Space Falcon <falcon@ivan.Harhan.ORG>
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189 * Tables : <none>
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Space Falcon <falcon@ivan.Harhan.ORG>
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190 * Compile Defines : <none>
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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191 * Return : 0 on success, 1 in case of an error
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
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192 * Information : similar to pop, but elements are remaining in buffer
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
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193 *
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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194 *******************************************************************************
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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195 */
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Space Falcon <falcon@ivan.Harhan.ORG>
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196
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Space Falcon <falcon@ivan.Harhan.ORG>
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197 int Shortint_fifo_peek(fifo_state_t *fifo_state,
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198 WORD16 *peeked_elements,
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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199 WORD32 num_elements_to_peek);
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
200
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
201
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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202 /*
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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203 *******************************************************************************
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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204 *
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Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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205 * Function : Shortint_fifo_check
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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206 * In/Out : fifo_state state variable
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
207 * Calls : <none>
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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208 * Tables : <none>
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
209 * Compile Defines : <none>
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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210 * Return : number of elements in fifo
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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211 * Information : determines the number of valid elements in fifo
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
212 *
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
213 *******************************************************************************
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
214 */
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff changeset
215
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
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216 WORD32 Shortint_fifo_check(fifo_state_t *fifo_state);
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parents:
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217
509db1a7b7b8 initial import: leo2moko-r1
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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218 #endif