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annotate src/cs/drivers/drv_core/dma/sys_dma_it.c @ 216:2be687f4476c default tip

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l1_init.c: sync with Tourmaline: L1 recovery ABB init fix
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 31 Oct 2022 01:23:14 +0000
parents b6a5e36de839
children
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1 /* @(#) nom : sys_dma_it.c SID: 1.2 date : 05/23/03 */
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2 /* Filename: sys_dma_it.c */
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3 /* Version: 1.2 */
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4 /******************************************************************************
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5 * WIRELESS COMMUNICATION SYSTEM DEVELOPMENT
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6 *
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7 * (C) 2002 Texas Instruments France. All rights reserved
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8 *
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9 * Author : Guillaume Leterrier
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10 * Francois Amand
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11 *
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12 *
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13 * Important Note
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14 * --------------
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15 *
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16 * This S/W is a preliminary version. It contains information on a product
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17 * under development and is issued for evaluation purposes only. Features
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18 * characteristics, data and other information are subject to change.
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19 *
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20 * The S/W is furnished under Non Disclosure Agreement and may be used or
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21 * copied only in accordance with the terms of the agreement. It is an offence
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22 * to copy the software in any way except as specifically set out in the
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23 * agreement. No part of this document may be reproduced or transmitted in any
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24 * form or by any means, electronic or mechanical, including photocopying and
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25 * recording, for any purpose without the express written permission of Texas
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26 * Instruments Inc.
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27 *
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28 ******************************************************************************
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29 *
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30 * FILE NAME: sys_dma_it.c
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31 *
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32 *
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33 * PURPOSE: Interruption DMA drivers for CALYPSO PLUS.
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34 *
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35 *
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36 *
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37 * FILE REFERENCES:
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38 *
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39 * Name IO Description
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40 * ------------- -- ---------------------------------------------
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41 *
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42 *
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43 *
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44 * EXTERNAL VARIABLES:
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45 *
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46 * Source:
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47 *
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48 * Name Type IO Description
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49 * ------------- --------------- -- ------------------------------
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50 *
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51 *
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52 *
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53 * EXTERNAL REFERENCES:
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54 *
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55 * Name Description
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56 * ------------------ -------------------------------------------------------
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57 *
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58 *
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59 *
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60 * ABNORMAL TERMINATION CONDITIONS, ERROR AND WARNING MESSAGES:
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61 *
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62 *
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63 *
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64 * ASSUMPTION, CONSTRAINTS, RESTRICTIONS:
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65 *
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66 *
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67 *
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68 * NOTES:
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69 *
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70 *
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71 *
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72 * REQUIREMENTS/FUNCTIONAL SPECIFICATION REFERENCES:
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73 *
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74 *
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75 *
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76 *
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77 * DEVELOPMENT HISTORY:
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78 *
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79 * Date Name(s) Version Description
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80 * ----------- -------------- ------- -------------------------------------
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81 * 23-Oct-2002 G.Leterrier 0.0.1 First implementation
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82 *
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83 * ALGORITHM:
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84 *
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85 *
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86 *****************************************************************************/
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87
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88 #include "chipset.cfg"
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89
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90 #if (CHIPSET == 12)
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91
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92 #include "sys_dma.h"
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93
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94
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95 /*****************************************************************************/
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96 /* global variable definition */
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97 /***************************************************************************/
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98
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99
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100 /* Array of pointer on call back function with argument SYS_UWORD16. */
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101 /* This argument is the value of the status IT register of the channel which has generated the IT event. */
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102 /* The size of the array is defined by the number of DMA channel available on the device */
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103
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104
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105
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106 T_DMA_CALL_BACK pf_dma_call_back_address[C_DMA_NUMBER_OF_CHANNEL]=
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107 {f_dma_default_call_back_it,
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108 f_dma_default_call_back_it,
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109 f_dma_default_call_back_it,
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110 f_dma_default_call_back_it,
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111 f_dma_default_call_back_it,
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112 f_dma_default_call_back_it,
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113 };
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114
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115
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116
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117 /******************************************************************************
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118 *
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119 * FUNCTION NAME:f_dma_interrupt_manager
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120 * The function is called when a DMA interrupt event occurs on the ARM interrupt handler.
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121 *
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122 * ARGUMENT LIST:
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123 *
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124 * Argument Type IO Description
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125 * ---------- ---------- -- -------------------------------------------
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126 * none
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127 *
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128 *
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129 * RETURN VALUE: none
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130 *
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131 *****************************************************************************/
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132 void f_dma_interrupt_manager(void)
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133 {
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134
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135 SYS_UWORD16 d_dma_isr;
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136 SYS_UWORD8 d_dma_index=0;
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137 /* MASK to eliminate interruption from channel allocation to DSP and secure channel allocated to ARM */
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138 d_dma_isr=C_DMA_ISR_REG & (~C_DMA_CAR_REG) & (~C_DMA_SCR_REG);
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139
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140
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141
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142 /* shift ISR register from channel 0 to channel n in order to determine the channel with interrrupt active*/
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143
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144 for (d_dma_index;d_dma_index<C_DMA_NUMBER_OF_CHANNEL;d_dma_index++) /* end condition need to be checked */
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145 {
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146 if ((d_dma_isr & 0x0001)==1)
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147 {
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148 pf_dma_call_back_address[d_dma_index](F_DMA_GET_CHANNEL_IT_STATUS(d_dma_index));
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149 } /* JUMP to the call back function with the status register in argument */
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150 d_dma_isr >>=1;
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151 }
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152
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153 }
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154
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155
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156 /******************************************************************************
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157 *
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158 * FUNCTION NAME:f_dma_secure_interrupt_manager
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159 * The function is called when a secure DMA interrupt event occurs on the ARM interrupt handler.
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160 *
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161 * ARGUMENT LIST:
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162 *
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163 * Argument Type IO Description
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164 * ---------- ---------- -- -------------------------------------------
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165 * none
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166 *
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167 *
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168 * RETURN VALUE: none
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169 *
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170 *****************************************************************************/
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171 void f_dma_secure_interrupt_manager(void)
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172 {
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173
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174 SYS_UWORD16 d_dma_isr;
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175 SYS_UWORD8 d_dma_index=0;
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176 /* MASK to eliminate interruption from channel allocation to DSP and non-secure channel allocated to ARM */
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177 d_dma_isr=C_DMA_ISR_REG & (~C_DMA_CAR_REG) & (C_DMA_SCR_REG);
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178
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179 /* shift ISR register from channel 0 to channel n in order to determine the channel with interrrupt active*/
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180
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181 for (d_dma_index;d_dma_index<C_DMA_NUMBER_OF_CHANNEL;d_dma_index++) /* end condition need to be checked */
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182 {
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183 if ((d_dma_isr & 0x0001)==1)
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184 {
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185 pf_dma_call_back_address[d_dma_index](F_DMA_GET_CHANNEL_IT_STATUS(d_dma_index));
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186 } /* JUMP to the call back function with the status register in argument */
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187 d_dma_isr >>=1;
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188 }
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189
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190 }
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191
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192
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193 /******************************************************************************
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194 *
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195 * FUNCTION NAME:f_dma_default_call_back_it
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196 * The address of that function will be called by default
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197 * by the DMA interrupt handler, if no call-back function has been defined yet on this channel
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198 *
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199 * ARGUMENT LIST:
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200 *
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201 * Argument Type IO Description
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202 * ---------- ---------- -- -------------------------------------------
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203 * d_dma_channel_status_it SYS_UWORD16 I contains a default IT status of the channel from which the event occurs.
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204 *
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205 *
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206 * RETURN VALUE: none
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207 *
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208 *****************************************************************************/
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209 void f_dma_default_call_back_it(SYS_UWORD16 d_dma_channel_it_status)
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210 {
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211 }
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212
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213
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214
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215
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216
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217
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218 #endif /* (CHIPSET == 12) */
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219