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1 // Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // omap3530/beagle_drivers/led/led.cpp |
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15 // |
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16 |
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17 #include <kern_priv.h> |
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18 #include <beagle/beagle_gpio.h> |
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19 #include <assp/omap3530_assp/omap3530_gpio.h> |
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20 #include <beagle/variant.h> |
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21 #include <assp/omap3530_assp/omap3530_assp_priv.h> |
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22 #include <assp/omap3530_assp/omap3530_irqmap.h> // GPIO interrupts |
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23 |
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24 #include <assp.h> // Required for definition of TIsr |
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25 |
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26 static NTimer * heartBeatTimer; |
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27 |
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28 |
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29 |
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30 static void ledIsr(TAny* aPtr) |
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31 { |
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32 //make sure the led is always in the sma estate when we crash |
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33 |
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34 GPIO::SetOutputState(KGPIO_LED1, GPIO::ELow); |
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35 Kern::Fault("User invoked crash via keypad",KErrDied); |
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36 } |
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37 |
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38 static void beatLedHeartBeat(TAny * ptr) |
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39 { |
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40 GPIO::TGpioState ledState; |
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41 GPIO::GetOutputState(KGPIO_LED1, ledState); |
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42 |
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43 if(GPIO::EHigh == ledState) |
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44 { |
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45 GPIO::SetOutputState(KGPIO_LED1, GPIO::ELow); |
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46 } |
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47 else |
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48 { |
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49 GPIO::SetOutputState(KGPIO_LED1, GPIO::EHigh); |
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50 } |
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51 |
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52 heartBeatTimer->Again(Variant::GetMsTickPeriod()); |
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53 } |
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54 |
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55 |
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56 DECLARE_STANDARD_EXTENSION() |
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57 { |
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58 |
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59 //Set up the button to proivde a panic button invoking Fault() |
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60 if(KErrNone != GPIO::SetPinDirection(KGPIO_UserButton, GPIO::EInput)) |
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61 return KErrArgument; |
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62 |
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63 GPIO::SetPinMode(KGPIO_UserButton, GPIO::EEnabled); |
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64 GPIO::SetDebounceTime(KGPIO_UserButton, 500); |
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65 |
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66 if(KErrNone !=GPIO::BindInterrupt(KGPIO_UserButton, ledIsr,NULL)) |
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67 return KErrArgument; |
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68 |
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69 if(KErrNone !=GPIO::SetInterruptTrigger(KGPIO_UserButton, GPIO::EEdgeRising)) |
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70 return KErrArgument; |
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71 |
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72 if(KErrNone !=GPIO::EnableInterrupt(KGPIO_UserButton)) |
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73 { |
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74 GPIO::UnbindInterrupt(KGPIO_UserButton); |
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75 return KErrInUse; |
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76 } |
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77 |
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78 //setup the Led to flash at the system tick rate ( heartbeat) |
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79 heartBeatTimer = new NTimer(beatLedHeartBeat,NULL); |
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80 |
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81 if(KErrNone != GPIO::SetPinDirection(KGPIO_LED1, GPIO::EOutput)) |
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82 return KErrArgument; |
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83 |
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84 if(KErrNone != GPIO::SetPinDirection(KGPIO_LED0, GPIO::EOutput)) |
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85 return KErrArgument; |
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86 |
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87 GPIO::SetPinMode(KGPIO_LED0, GPIO::EEnabled); |
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88 GPIO::SetPinMode(KGPIO_LED1, GPIO::EEnabled); |
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89 GPIO::SetOutputState(KGPIO_LED0, GPIO::ELow); |
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90 |
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91 heartBeatTimer->OneShot(Variant::GetMsTickPeriod(),ETrue); |
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92 return KErrNone; |
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93 } |
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94 |