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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Minimalistic keyboard driver |
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15 * |
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16 */ |
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17 |
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18 //#define DEBUG |
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19 |
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20 #include "syborg_keyboard.h" |
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21 |
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22 LOCAL_C TInt halFunction(TAny* aPtr, TInt aFunction, TAny* a1, TAny* a2) |
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23 { |
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24 DKeyboardPs2Soc* pH=(DKeyboardPs2Soc*)aPtr; |
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25 return pH->HalFunction(aFunction,a1,a2); |
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26 } |
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27 |
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28 void rxMsg(TAny* aPtr) |
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29 { |
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30 DKeyboardPs2Soc& h=*(DKeyboardPs2Soc*)aPtr; |
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31 TMessageBase* pM=h.iMsgQ.iMessage; |
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32 if (pM) |
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33 h.HandleMsg(pM); |
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34 } |
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35 |
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36 TInt DKeyboardPs2Soc::FifoPop(void) |
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37 { |
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38 TInt val = iKeyFifo[iFifoPos]; |
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39 iFifoPos++; |
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40 iFifoCount--; |
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41 |
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42 if (iFifoPos == FIFO_SIZE) |
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43 iFifoPos = 0; |
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44 |
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45 return val; |
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46 } |
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47 |
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48 void DKeyboardPs2Soc::FifoPush(TInt val) |
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49 { |
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50 TInt slot; |
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51 |
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52 if (iFifoCount == FIFO_SIZE) |
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53 return; |
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54 |
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55 slot = iFifoPos + iFifoCount; |
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56 if (slot >= FIFO_SIZE) |
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57 slot -= FIFO_SIZE; |
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58 iKeyFifo[slot] = val; |
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59 iFifoCount++; |
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60 } |
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61 |
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62 void DKeyboardPs2Soc::Isr(TAny* aPtr) |
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63 { |
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64 __DEBUG_PRINT("DKeyboardPs2Soc::Isr"); |
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65 DKeyboardPs2Soc& k = *(DKeyboardPs2Soc*)aPtr; |
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66 |
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67 // Is now auto-clearing |
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68 while(ReadReg(KHwBaseKmiKeyboard, KBD_FIFO_COUNT)!=0) |
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69 k.FifoPush(ReadReg(KHwBaseKmiKeyboard, KBD_DATA)); |
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70 |
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71 //WriteReg(KHwBaseKmiKeyboard,KBD_CLEAR_INT, 0); |
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72 Interrupt::Clear(EIntKeyboard); |
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73 k.iRxDfc.Add(); |
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74 } |
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75 |
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76 DKeyboardPs2Soc::DKeyboardPs2Soc() |
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77 : DPowerHandler(KLitKeyboard), |
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78 iRxDfc(RxDfc,this,Kern::DfcQue0(),1), |
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79 iMsgQ(rxMsg,this,NULL,1) |
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80 { |
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81 iKeyboardOn = ETrue; |
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82 iFifoPos = 0; |
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83 iFifoCount = 0; |
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84 } |
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85 |
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86 TInt DKeyboardPs2Soc::Create() |
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87 { |
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88 __DEBUG_PRINT("DKeyboardPs2Soc::Create"); |
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89 |
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90 TInt r=KErrNone; |
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91 iDfcQ=Kern::DfcQue0(); |
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92 |
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93 iFifoPos = iFifoCount = 0; |
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94 |
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95 r=Kern::AddHalEntry(EHalGroupKeyboard,halFunction,this); |
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96 if (r!=KErrNone) |
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97 return r; |
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98 |
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99 iMsgQ.SetDfcQ(iDfcQ); |
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100 iMsgQ.Receive(); |
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101 |
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102 r=Interrupt::Bind(EIntKeyboard,Isr,this); |
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103 if (r==KErrNone) { |
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104 Add(); |
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105 KeyboardOn(); |
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106 } |
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107 return r; |
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108 } |
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109 |
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110 void DKeyboardPs2Soc::PowerUp() |
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111 { |
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112 PowerUpDone(); |
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113 } |
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114 |
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115 void DKeyboardPs2Soc::PowerDown(TPowerState) |
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116 { |
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117 PowerDownDone(); |
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118 } |
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119 |
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120 void DKeyboardPs2Soc::KeyboardOn() |
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121 { |
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122 __DEBUG_PRINT("DKeyboardPs2Soc::KeyboardOn"); |
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123 TInt reg = ReadReg(KHwBaseKmiKeyboard,KBD_ID); |
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124 |
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125 Interrupt::Enable(EIntKeyboard); |
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126 WriteReg(KHwBaseKmiKeyboard,KBD_INT_ENABLE,1); |
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127 } |
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128 |
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129 void DKeyboardPs2Soc::KeyboardOff() |
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130 { |
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131 __DEBUG_PRINT("DKeyboardPs2Soc::KeyboardOff"); |
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132 Interrupt::Disable(EIntKeyboard); |
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133 WriteReg(KHwBaseKmiKeyboard,KBD_INT_ENABLE,0); |
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134 } |
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135 |
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136 void DKeyboardPs2Soc::HandleMsg(TMessageBase* aMsg) |
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137 { |
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138 __DEBUG_PRINT("DKeyboardPs2Soc::HandleMsg"); |
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139 if (aMsg->iValue) |
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140 KeyboardOn(); |
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141 else |
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142 KeyboardOff(); |
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143 aMsg->Complete(KErrNone,ETrue); |
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144 } |
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145 |
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146 void DKeyboardPs2Soc::KeyboardInfo(TKeyboardInfoV01& aInfo) |
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147 { |
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148 aInfo.iKeyboardType=KConfigKeyboardType; |
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149 aInfo.iDeviceKeys=KConfigKeyboardDeviceKeys; |
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150 aInfo.iAppsKeys=KConfigKeyboardAppsKeys; |
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151 } |
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152 |
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153 TInt DKeyboardPs2Soc::HalFunction(TInt aFunction, TAny* a1, TAny* a2) |
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154 { |
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155 TInt r=KErrNone; |
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156 |
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157 __DEBUG_PRINT("DKeyboardPs2Soc::HalFunction"); |
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158 switch(aFunction) |
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159 { |
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160 case EKeyboardHalKeyboardInfo: |
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161 { |
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162 TPckgBuf<TKeyboardInfoV01> kPckg; |
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163 KeyboardInfo(kPckg()); |
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164 Kern::InfoCopy(*(TDes8*)a1,kPckg); |
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165 break; |
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166 } |
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167 // UIKLAF Silent running/power management |
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168 case EKeyboardHalSetKeyboardState: |
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169 { |
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170 if(!Kern::CurrentThreadHasCapability(ECapabilityPowerMgmt,__PLATSEC_DIAGNOSTIC_STRING("Checked by Hal function EKeyboardHalSetKeyboardState"))) |
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171 return KErrPermissionDenied; |
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172 if ((TBool)a1) |
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173 { |
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174 TThreadMessage& m=Kern::Message(); |
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175 m.iValue = ETrue; |
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176 m.SendReceive(&iMsgQ); |
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177 } |
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178 else |
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179 { |
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180 TThreadMessage& m=Kern::Message(); |
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181 m.iValue = EFalse; |
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182 m.SendReceive(&iMsgQ); |
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183 } |
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184 } |
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185 break; |
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186 case EKeyboardHalKeyboardState: |
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187 kumemput32(a1, &iKeyboardOn, sizeof(TBool)); |
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188 break; |
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189 default: |
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190 r=KErrNotSupported; |
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191 break; |
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192 } |
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193 return r; |
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194 } |
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195 |
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196 void DKeyboardPs2Soc::RxDfc(TAny* aPtr) |
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197 { |
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198 TRawEvent e; |
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199 DKeyboardPs2Soc& k = *(DKeyboardPs2Soc*)aPtr; |
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200 |
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201 while(k.iFifoCount>0) { |
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202 int keycode = k.FifoPop(); |
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203 int dwn = (keycode & 0x80000000) ? 0 : 1; |
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204 __DEBUG_PRINT("DKeyboardPs2Soc::RxDfc %d %d", keycode, dwn); |
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205 |
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206 keycode &= ~(0x80000000); |
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207 if (dwn) { |
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208 __DEBUG_PRINT("kbd EKeyDown:%d",keycode); |
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209 e.Set(TRawEvent::EKeyDown,KConvertCode[keycode],0); |
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210 } |
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211 else { |
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212 __DEBUG_PRINT("kbd EKeyUp:%d",keycode); |
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213 e.Set(TRawEvent::EKeyUp,KConvertCode[keycode],0); |
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214 } |
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215 Kern::AddEvent(e); |
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216 } |
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217 } |
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218 |
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219 DECLARE_STANDARD_EXTENSION() |
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220 { |
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221 TInt r=KErrNoMemory; |
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222 DKeyboardPs2Soc* pK=new DKeyboardPs2Soc; |
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223 if (pK) |
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224 r=pK->Create(); |
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225 __KTRACE_OPT(KEXTENSION,__DEBUG_PRINT("Returns %d",r)); |
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226 return r; |
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227 } |