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annotate nuc-fw/bsp/armio.c @ 93:45911ad957fd

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nuc-fw: beginning to integrate TI's BSP code
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Sat, 31 Aug 2013 23:43:23 +0000
parents
children 325bbadc0c9c
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93
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1 /*
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2 * ARMIO.C
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3 *
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4 *
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5 * Control diagnostic bits
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6 *
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7 * Reference : GCS207
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8 *
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9 */
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10
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11
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12 #include "../include/config.h"
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13 #include "../include/sys_types.h"
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14
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15 #include "mem.h"
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16 #include "iq.h"
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17 #include "armio.h"
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18
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19 #if 0
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20 /* FreeCalypso: abb.h hasn't been integrated yet */
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21 #include "abb.h" // for AI_Power function : to be removed, use ABB_Power_Off in abb.c file instead !!!
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22 #endif
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23
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24 #if (CHIPSET != 12)
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25 /*
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26 * AI_EnableBit
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27 *
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28 * Enable ARMIO input/output bit (see CLKM module specification)
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29 */
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30 void AI_EnableBit(int bit)
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31 {
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32 *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) |= (1<<bit);
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33 }
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34
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35 /*
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36 * AI_DisableBit
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37 *
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38 * Disable ARMIO input/output bit (see CLKM module specification)
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39 */
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40 void AI_DisableBit(int bit)
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41 {
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42 *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) &= ~(1<<bit);
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43 }
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44
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45 #endif /* CHIPSET != 12 */
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46
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47 /*
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48 * AI_SetBit
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49 *
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50 * Switch-on one bit
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51 */
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52 void AI_SetBit(int bit)
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53 {
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54 *((volatile SYS_UWORD16 *) ARMIO_OUT) |= (1<<bit);
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55 }
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56
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57 /*
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58 * AI_ResetBit
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59 *
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60 * Switch-off one bit
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61 */
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62 void AI_ResetBit(int bit)
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63 {
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64 *((volatile SYS_UWORD16 *) ARMIO_OUT) &= ~(1<<bit);
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65 }
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66
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67 /*
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68 * AI_ConfigBitAsOutput
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69 *
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70 * Set this bit as an output
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71 */
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72 void AI_ConfigBitAsOutput(int bit)
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73 {
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74 *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) &= ~(1<<bit);
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75 }
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76
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77 /*
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78 * AI_ConfigBitAsInput
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79 *
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80 * Set this bit as an input
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81 */
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82 void AI_ConfigBitAsInput(int bit)
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83 {
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84 *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) |= (1<<bit);
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85 }
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86
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87
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88 /*
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89 * AI_ReadBit
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90 *
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91 * Read value in register
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92 */
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93 SYS_BOOL AI_ReadBit(int bit)
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94 {
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95 if ((*((volatile SYS_UWORD16 *) ARMIO_IN)) & (1<<bit))
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96 return (1);
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97 else
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98 return (0);
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99 }
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100
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101 /*
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102 * AI_Power
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103 *
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104 * Switch-on or off the board
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105 *
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106 * Parameters : SYS_UWORD8 power: 1 to power-on (maintain power)
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107 * 0 to power-off
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108 *
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109 */
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110 // #if (!OP_L1_STANDALONE)
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111 #if 0
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112 void AI_Power(SYS_UWORD8 power)
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113 {
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114 if (power == 0)
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115 {
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116 ABB_Power_Off();
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117 }
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118 }
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119 #endif
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120
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121 /*
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122 * AI_ResetIoConfig
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123 *
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124 * Reset all default IO configurations
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125 *
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126 */
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127 void AI_ResetIoConfig(void)
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128 {
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129 *((volatile SYS_UWORD16 *) ARMIO_IO_CNTL) = 0xFFFF; // all bits are inputs
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130 #if (CHIPSET != 12)
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131 *((volatile SYS_UWORD16 *) CLKM_IO_CNTL) = 0; // default config
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132 #endif /* CHIPSET != 12 */
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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 * AI_ClockEnable
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138 *
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139 * Enable ARMIO clock module
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140 *
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141 */
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142 void AI_ClockEnable(void)
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143 {
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144 *((volatile SYS_UWORD16 *) ARMIO_CNTL_REG) |= ARMIO_CLOCKEN; // set to 1 bit 5
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145 }
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146
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147 /*
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148 * The target-specific AI_InitIOConfig() function will need to go here.
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149 */
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150
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151 /*
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152 * AI_SelectIOForIT
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153 *
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154 * Select which IO will be used to generate an interrupt.
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155 * 'Edge' specifies if interrup must be detected on falling or rising edge.
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156 *
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157 * Warning: parameters are not checked.
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158 */
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159
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160 void AI_SelectIOForIT (SYS_UWORD16 Pin, SYS_UWORD16 Edge)
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161 {
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162 #if (CHIPSET == 12)
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163 /*
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164 * Update INTERRUPT_LEVEL_REG with Edge configuration on Pin selection
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165 */
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166 GPIO_INTERRUPT_LEVEL_REG = (Edge & 0x0001) << Pin;
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167
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168 /*
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169 * Update INTERRUPT_MASK_REG to enable interrupt generation on Pin selection
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170 */
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171 GPIO_INTERRUPT_MASK_REG = 1 << Pin;
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172 #else
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173 /*
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174 * Bit SET_GPIO_EVENT_MODE (bit 0) is set to enable the GPIO event mode.
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175 */
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176
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177 *((volatile SYS_UWORD16 *) ARMIO_GPIO_EVENT_MODE) = (Pin << 1) + (Edge << 5) + 1;
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178 #endif
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179 }
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180
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181 #if (CHIPSET != 12)
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182 /*
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183 * AI_CheckITSource
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184 *
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185 * Check if the interrupt specified by 'Source' is active or not.
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186 *
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187 * Output: 0: IT is not active
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188 * 1: IT is active
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189 *
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190 * Warning: parameters are not checked.
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191 *
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192 * Warning: If the keypad and GPIO interrupts may occur the GPIO interrupt
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193 * must be checked first because the GPIO status bit is reset when
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194 * the register is read.
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195 */
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196
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197 int AI_CheckITSource (SYS_UWORD16 Source)
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198 {
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199 return (*((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_INT) & Source ? 1 : 0);
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200 }
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201
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202 /*
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203 * AI_UnmaskIT
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204 *
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205 * Unmask the IT specified by 'Source' (keyboard or GPIO).
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206 *
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207 * Warning: parameters are not checked.
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208 */
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209
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210 void AI_UnmaskIT (SYS_UWORD16 Source)
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211 {
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212 *((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_MASKIT) &= ~Source;
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213 }
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214
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215 /*
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216 * AI_MaskIT
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217 *
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218 * Mask the IT specified by 'Source' (keyboard or GPIO).
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219 *
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220 * Warning: parameters are not checked.
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221 */
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222
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223 void AI_MaskIT (SYS_UWORD16 Source)
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224 {
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225 *((volatile SYS_UWORD16 *) ARMIO_KBD_GPIO_MASKIT) |= Source;
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226 }
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227 #endif /* CHIPSET != 12 */
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228
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229 #if (CHIPSET == 12)
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230
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231 void AI_MaskIT(SYS_UWORD16 d_io_number) {
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232 GPIO_INTERRUPT_MASK_REG |= (1 << d_io_number);
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233 } /* f_gpio_mask_it() */
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234
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235 void AI_UnmaskIT(SYS_UWORD16 d_io_number) {
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236 GPIO_INTERRUPT_MASK_REG &= ~(1 << d_io_number);
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237 } /* f_gpio_unmask_it() */
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238
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239 #endif