FreeCalypso > hg > fc-magnetite
annotate src/cs/drivers/drv_core/timer/timer.c @ 393:512fb1dca72d
src/cs/riviera/rvf/rvf_pool_size.h: don't include mdc.cfg bogon
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 17 Jan 2018 20:32:42 +0000 |
parents | 945cf7f506b2 |
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rev | line source |
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1 /******************************************************************************* |
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2 TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION |
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3 |
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4 Property of Texas Instruments -- For Unrestricted Internal Use Only |
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5 Unauthorized reproduction and/or distribution is strictly prohibited. This |
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6 product is protected under copyright law and trade secret law as an |
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7 unpublished work. Created 1987, (C) Copyright 1997 Texas Instruments. All |
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8 rights reserved. |
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9 |
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10 |
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11 Filename : timer.c |
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12 |
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13 Description : timer.c |
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14 |
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15 Project : drivers |
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16 |
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17 Author : pmonteil@tif.ti.com Patrice Monteil. |
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18 |
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19 Version number : 1.3 |
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20 |
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21 Date and time : 07/23/98 16:25:32 |
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22 Previous delta : 07/23/98 16:25:32 |
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23 |
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24 SCCS file : /db/gsm_asp/db_ht96/dsp_0/gsw/rel_0/mcu_l1/release1.5/mod/emu/EMU_MCMP/eva3_drivers/source/SCCS/s.timer.c |
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25 |
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26 Sccs Id (SID) : '@(#) timer.c 1.3 07/23/98 16:25:32 ' |
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27 |
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28 |
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29 *****************************************************************************/ |
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30 |
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31 #include "l1sw.cfg" |
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32 |
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33 #if (OP_L1_STANDALONE == 0) |
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34 #include "main/sys_types.h" |
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35 #else |
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36 #include "sys_types.h" |
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37 #endif |
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38 #include "memif/mem.h" |
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39 #include "inth/iq.h" |
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40 #include "timer.h" |
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41 |
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42 |
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43 /*-------------------------------------------------------------- |
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44 * TIMER_Read() |
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45 *-------------------------------------------------------------- |
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46 * Parameters : num of the register to be read |
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47 * Return :value of the timer register read |
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48 * Functionality : read one of the TIMER register |
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49 *--------------------------------------------------------------*/ |
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50 SYS_UWORD16 TIMER_Read (unsigned short regNum) |
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51 { |
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52 volatile SYS_UWORD16 timerReg; |
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53 |
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54 switch (regNum) { |
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55 case 0: |
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56 timerReg = (( * (SYS_UWORD16 *) TIMER_CNTL_REG) & TIMER_CNTL_MASK); |
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57 break; |
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58 case 1: |
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59 timerReg = ( * (SYS_UWORD16 *) TIMER_READ_REG); |
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60 break; |
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61 case 2: |
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62 timerReg = (( * (SYS_UWORD16 *) TIMER_MODE_REG) & TIMER_MODE_MASK); |
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63 break; |
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64 default: |
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65 break; |
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66 } |
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67 return(timerReg); |
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68 } |
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69 /*-------------------------------------------------------------- |
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70 * TM_ResetTimer() |
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71 *-------------------------------------------------------------- |
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72 * Parameters : timer number (1 or 2) |
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73 * timer value, reload yes or not, scale |
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74 * Return : none |
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75 * Functionality : Give the timewr state |
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76 *--------------------------------------------------------------*/ |
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77 void TM_ResetTimer (SYS_UWORD16 timerNum, SYS_UWORD16 countValue, |
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78 SYS_UWORD16 autoReload, SYS_UWORD16 clockScale) |
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79 { |
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80 volatile SYS_UWORD16 *cntl; |
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81 |
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82 if (timerNum == 1) |
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83 { |
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84 cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL; |
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85 |
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86 *cntl &= ~(START_STOP | PTV); /* stop and reset values */ |
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87 |
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88 (autoReload) ? (*cntl |= AR) : (*cntl &= ~AR); |
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89 |
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90 *cntl |= (clockScale << 2 ); |
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91 |
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92 |
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93 * (SYS_UWORD16 *) TIMER1_LOAD_TIM = countValue; /*load the value */ |
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94 |
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95 *cntl |= START_STOP; |
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96 } |
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97 else |
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98 { |
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99 cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL; |
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100 |
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101 *cntl &= ~(START_STOP | PTV); /* stop and reset values */ |
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102 |
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103 (autoReload) ? (*cntl |= AR) : (*cntl &= ~AR); |
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104 |
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105 *cntl |= (clockScale << 2 ); |
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106 |
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107 |
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108 * (SYS_UWORD16 *) TIMER2_LOAD_TIM = countValue; /*load the value */ |
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109 |
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110 *cntl |= START_STOP; |
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111 } |
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112 } |
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113 |
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114 /* |
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115 * TM_StopTimer |
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116 * |
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117 * Parameters : timer number (1 or 2) |
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118 */ |
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119 void TM_StopTimer (int timerNum) |
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120 { |
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121 |
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122 volatile SYS_UWORD16 *cntl; |
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123 |
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124 if (timerNum == 1) |
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125 { |
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126 cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL; |
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127 } |
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128 else |
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129 { |
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130 cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL; |
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131 } |
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132 *cntl &= ~START_STOP; |
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133 |
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134 } |
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135 |
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136 /* |
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137 * TM_ReadTimer |
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138 * |
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139 * Returns current timer value |
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140 * |
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141 * Parameters : timer number (1 or 2) |
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142 * |
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143 */ |
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144 SYS_UWORD16 TM_ReadTimer (int timerNum) |
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145 { |
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146 if (timerNum == 1) |
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147 { |
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148 return (* (SYS_UWORD16 *) TIMER1_READ_TIM); |
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149 } |
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150 else |
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151 { |
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152 return (* (SYS_UWORD16 *) TIMER2_READ_TIM); |
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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 * TM_StartTimer |
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159 * |
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160 * Parameters : timer number (1 or 2) |
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161 * |
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162 */ |
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163 void TM_StartTimer (int timerNum) |
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164 { |
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165 volatile SYS_UWORD16 *cntl; |
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166 |
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167 if (timerNum == 1) |
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168 { |
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169 cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL; |
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170 } |
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171 else |
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172 { |
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173 cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL; |
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174 } |
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175 *cntl |= START_STOP; |
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176 } |
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177 |
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178 void TM_DisableWatchdog (void) |
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179 { |
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180 /* volatile variable needed due C to optimization */ |
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181 volatile SYS_UWORD16 *reg = (volatile SYS_UWORD16 *) TIMER_MODE_REG; |
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182 |
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183 *reg = 0xf5; |
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184 *reg = 0xa0; |
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185 } |
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186 |
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187 |
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188 /* |
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189 * TM_EnableWatchdog |
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190 * |
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191 */ |
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192 void TM_EnableWatchdog(void) |
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193 { |
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194 * ((volatile SYS_UWORD16 *) TIMER_MODE_REG) = TIMER_WDOG; |
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195 } |
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196 |
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197 /* |
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198 * TM_ResetWatchdog |
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199 * |
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200 * Parameter : Tick count |
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201 * Use a different value each time, otherwise watchdog bites |
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202 */ |
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203 void TM_ResetWatchdog(SYS_UWORD16 count) |
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204 { |
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205 * ((volatile SYS_UWORD16 *) TIMER_LOAD_REG) = count; |
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206 } |
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207 |
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208 /* |
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209 * TM_EnableTimer (int TimerNum) |
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210 * |
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211 * Parameter : TimerNum : timer to enable (timer1 or timer2) |
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212 * |
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213 */ |
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214 void TM_EnableTimer (int TimerNum) |
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215 { |
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216 volatile SYS_UWORD16 *cntl; |
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217 |
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218 if (TimerNum == 1) |
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219 { |
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220 cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL; |
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221 } |
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222 else |
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223 { |
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224 cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL; |
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225 } |
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226 *cntl |= TIMER_CLK_EN; |
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227 |
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228 } |
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229 |
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230 /* |
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231 * TM_DisableTimer (int TimerNum) |
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232 * |
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233 * Parameter : TimerNum : timer to enable (timer1 or timer2) |
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234 * |
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235 */ |
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236 void TM_DisableTimer (int TimerNum) |
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237 { |
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238 volatile SYS_UWORD16 *cntl; |
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239 |
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240 if (TimerNum == 1) |
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241 { |
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242 cntl = (volatile SYS_UWORD16 *) TIMER1_CNTL; |
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243 } |
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244 else |
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245 { |
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246 cntl = (volatile SYS_UWORD16 *) TIMER2_CNTL; |
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247 } |
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248 *cntl &= ~TIMER_CLK_EN; |
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249 } |
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250 |
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251 /*-------------------------------------------------------------- |
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252 * TIMER_ReadValue() |
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253 *-------------------------------------------------------------- |
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254 * Parameters : none |
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255 * Return : none |
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256 * Functionality : Read timer value |
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257 *--------------------------------------------------------------*/ |
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258 |
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259 unsigned short TIMER_ReadValue (void) |
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260 { |
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261 return(* (SYS_UWORD16 *) TIMER_READ_REG); |
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262 |
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263 } |
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264 |
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265 /*-------------------------------------------------------------- |
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266 * TIMER_WriteValue() |
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267 *-------------------------------------------------------------- |
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268 * Parameters : none |
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269 * Return : none |
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270 * Functionality : Write timer value |
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271 *--------------------------------------------------------------*/ |
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272 |
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273 void TIMER_WriteValue (SYS_UWORD16 value) |
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274 { |
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275 * (SYS_UWORD16 *) TIMER_LOAD_REG = value; /*load the value */ |
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276 |
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277 } |