omap3530/beagleboard/src/variant.cpp
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     1 // Copyright (c) 1994-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of the License "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // omap3530/beaglboard/src/variant.cpp
       
    15 //
       
    16 
       
    17 #include <kernel.h>
       
    18 #include <beagle/variant.h>
       
    19 #include <beagle/mconf.h>
       
    20 #include <beagle/beagle_gpio.h>
       
    21 #include <assp/omap3530_assp/omap3530_uart.h>
       
    22 #include <assp/omap3530_assp/omap3530_gpio.h>
       
    23 #include <assp/omap3530_shared/tps65950.h>
       
    24 
       
    25 #define ENABLE_WFI
       
    26 #define IDLE_TICK_SUPPRESSION
       
    27 
       
    28 
       
    29 #ifdef IDLE_TICK_SUPPRESSION
       
    30 #include <assp/omap3530_shared/omap3_mstick.h>
       
    31 #endif
       
    32 
       
    33 
       
    34 GLREF_C void ArmWaitForInterrupt();
       
    35 
       
    36 
       
    37 //These constants define Custom Restart Reasons in SuperPage::iHwStartupReason
       
    38 const TUint KHtCustomRestartMax	  = 0xff;
       
    39 const TUint KHtCustomRestartShift = 8;
       
    40 const TUint KHtCustomRestartMask  = KHtCustomRestartMax << KHtCustomRestartShift; 
       
    41 
       
    42 //TODO: unncomment when referenced
       
    43 const TUint KHtRestartStartupModesMax = 0xf; // Variable, platform dependant 
       
    44 //const TUint KHtRestartStartupModesShift = 16; // Variable, platform dependant 
       
    45 //const TUint KHtRestartStartupModesMask = KHtRestartStartupModesMax << KHtRestartStartupModesShift;
       
    46 
       
    47 void BeagleVariantFault(TInt aLine)
       
    48 	{
       
    49 	Kern::Fault("BeagleVariant",aLine);	
       
    50 	}
       
    51 
       
    52 #define V_FAULT()	BeagleVariantFault(__LINE__)
       
    53 
       
    54 // Debug output
       
    55 #define XON								17
       
    56 #define XOFF							19
       
    57 #define DEBUG_XON_XOFF					0		// Non-zero if we want XON-XOFF handshaking
       
    58 
       
    59 GLDEF_D Beagle TheVariant;
       
    60 TUint32 Variant::iBaseAddress=0;
       
    61 
       
    62 
       
    63 
       
    64 
       
    65 
       
    66 EXPORT_C Asic* VariantInitialise()
       
    67 	{
       
    68 	return &TheVariant;
       
    69 	}
       
    70 
       
    71 Beagle::Beagle()
       
    72 	{
       
    73 	iDebugInitialised=EFalse;
       
    74 	}
       
    75 
       
    76 //
       
    77 // TO DO: (optional)
       
    78 //
       
    79 // Specify the RAM zone configuration.
       
    80 //
       
    81 // The lowest addressed zone must have the highest preference as the bootstrap 
       
    82 // will always allocate from the lowest address up.  Once the kernel has initialised
       
    83 // then the zone preferences will decide from which RAM zone memory is allocated.
       
    84 //
       
    85 // 	const TUint KVariantRamZoneCount = ?;
       
    86 //	static const SRamZone KRamZoneConfig[KVariantRamZoneCount+1] = 
       
    87 //				 			iBase      iSize   		iID	iPref	iFlags
       
    88 //				{
       
    89 //				__SRAM_ZONE(0x????????, 0x???????, 	?,	?, 		?), 
       
    90 //				...
       
    91 //				__SRAM_ZONE(0x????????, 0x???????, 	?, 	?, 		?),
       
    92 //				__SRAM_ZONE_END, // end of zone list
       
    93 //				};
       
    94 //
       
    95 
       
    96 TInt Beagle::RamZoneCallback(TRamZoneOp aOp, TAny* aId, const TAny* aMasks)
       
    97 	{
       
    98 	//
       
    99 	// TO DO: (optional)
       
   100 	//
       
   101 	// Handle RAM zone operations requested by the kernel.
       
   102 	//
       
   103 	return TheVariant.DoRamZoneCallback(aOp, (TUint)aId, (const TUint*)aMasks);
       
   104 	}
       
   105 
       
   106 
       
   107 TInt Beagle::DoRamZoneCallback(TRamZoneOp aOp, TUint aId, const TUint* aMasks)
       
   108 	{
       
   109 	//
       
   110 	// TO DO: (optional)
       
   111 	//
       
   112 	// Handle RAM zone operations requested by the kernel.
       
   113 	//
       
   114 	// Three types of operation need to be supported:
       
   115 	//	ERamZoneOp_Init:		Update power state of the RAM zones after the
       
   116 	//							kernel has initialised.
       
   117 	//	ERamZoneOp_PowerUp:		A RAM zone changing from used to empty.
       
   118 	//	ERamZoneOp_PowerDown:	A RAM zone changing from empty to used.
       
   119 	//
       
   120  
       
   121 	switch (aOp)
       
   122 		{
       
   123 		case ERamZoneOp_Init:	
       
   124 			break;
       
   125 		case ERamZoneOp_PowerUp:
       
   126 			break;
       
   127 		case ERamZoneOp_PowerDown:
       
   128 			break;
       
   129 		default:
       
   130 			return KErrNotSupported;
       
   131 		}
       
   132 	return KErrNone;
       
   133 	}
       
   134 
       
   135 TUint Beagle::SysClkFrequency() const
       
   136 	{
       
   137 	return 26000000;
       
   138 	}
       
   139 
       
   140 TUint Beagle::SysClk32kFrequency() const
       
   141 	{
       
   142 	return 32768;
       
   143 	}
       
   144 
       
   145 TUint Beagle::AltClkFrequency() const
       
   146 	{
       
   147 	// Doesn't appear to be connected on Beagle
       
   148 	return 0;
       
   149 	}
       
   150 
       
   151 void Beagle::Init1()
       
   152 	{
       
   153 	__KTRACE_OPT(KBOOT,Kern::Printf("Beagle::Init1()"));
       
   154 	Omap3530Assp::Init1();
       
   155 	}
       
   156 
       
   157 
       
   158 EXPORT_C TInt Variant::GetMsTickPeriod()
       
   159 	{
       
   160 	return TheVariant.MsTickPeriod();
       
   161 	
       
   162 	}
       
   163 
       
   164 void Beagle::Init3()
       
   165 	{
       
   166 	__KTRACE_OPT(KBOOT,Kern::Printf("Beagle::Init3()"));
       
   167 	
       
   168 	Omap3530Assp::Init3();
       
   169 
       
   170 	Variant::Init3();
       
   171 	}
       
   172 
       
   173 void Variant::Init3()
       
   174 //
       
   175 // Phase 3 initialisation
       
   176 //
       
   177     {
       
   178 	__KTRACE_OPT(KHARDWARE, Kern::Printf(">Variant::Init3"));
       
   179 	}
       
   180 
       
   181 EXPORT_C TUint Variant::BaseLinAddress()
       
   182 	{
       
   183 	return((TUint)iBaseAddress);
       
   184 	}
       
   185 
       
   186 EXPORT_C void Variant::MarkDebugPortOff()
       
   187 	{
       
   188 	TheVariant.iDebugInitialised=EFalse;
       
   189 	}
       
   190 
       
   191 EXPORT_C void Variant::UartInit()
       
   192 	{
       
   193 	if (!TheVariant.iDebugInitialised)
       
   194 		{
       
   195 		const Omap3530Uart::TUartNumber portNumber( Omap3530Assp::DebugPortNumber() );
       
   196 
       
   197 		if( portNumber >= 0 )
       
   198 			{
       
   199 			Omap3530Uart::TUart uart( portNumber );
       
   200 		
       
   201 			uart.Init();
       
   202 			uart.DefineMode( Omap3530Uart::TUart::EUart );
       
   203 			uart.SetBaud( Omap3530Uart::TUart::E115200 );
       
   204 			uart.SetDataFormat( Omap3530Uart::TUart::E8Data, Omap3530Uart::TUart::E1Stop, Omap3530Uart::TUart::ENone );
       
   205 			uart.Enable();
       
   206 			
       
   207 			TheVariant.iDebugInitialised=ETrue;
       
   208 			}
       
   209 		}
       
   210 	}
       
   211 
       
   212 void Beagle::DebugInit()
       
   213 	{
       
   214 	Variant::UartInit();
       
   215 	}
       
   216 
       
   217 void Beagle::DebugOutput(TUint aLetter)
       
   218 //
       
   219 // Output a character to the debug port
       
   220 //
       
   221     {
       
   222 	const Omap3530Uart::TUartNumber portNumber( Omap3530Assp::DebugPortNumber() );
       
   223 
       
   224 	if( portNumber >= 0 )
       
   225 		{
       
   226 		if (!iDebugInitialised)
       
   227 			{
       
   228 			DebugInit();
       
   229 			}
       
   230 		Omap3530Uart::TUart uart( portNumber );
       
   231 		// If the FIFO is full we need to wait..
       
   232 		while( uart.TxFifoFull() );
       
   233 		uart.Write( aLetter );
       
   234 		}
       
   235     }
       
   236 
       
   237 void Beagle::Idle()
       
   238 //
       
   239 // The NULL thread idle loop
       
   240 //
       
   241 	{
       
   242 	// Idle the CPU, suppressing the system tick if possible
       
   243 
       
   244 	//
       
   245 	// TO DO: (optional)
       
   246 	//
       
   247 	// Idle Tick supression: 
       
   248 	// 1- obtain the number of idle Ticks before the next NTimer expiration (NTimerQ::IdleTime())
       
   249 	// 2- if the number of Ticks is large enough (criteria to be defined) reset the Hardware Timer
       
   250 	//    to only interrupt again when the corresponding time has expired.
       
   251 	//   2.1- the calculation of the new value to program the Hardware Timer with should take in 
       
   252 	//		  consideration the rounding value (NTimerQ::iRounding)
       
   253 	//  3- call the low level Sleep function (e'g. Bootstrap: address in iIdleFunction)
       
   254 	//  4- on coming back from Idle need to read the Hardware Timer and determine if woken up due to 
       
   255 	//     timer expiration (system time for new match<=current system time<system time for new match-tick period)
       
   256 	//     or some other Interrupt.
       
   257 	//	 4.1- if timer expiration, adjust System Time by adding the number of Ticks suppressed to NTimerQ::iMsCount
       
   258 	//   4.2- if other interrupt, calculate the number of Ticks skipped until woken up and adjust the System Time as
       
   259 	//		  above
       
   260 	//
       
   261 	// Support for different Sleep Modes:
       
   262 	// Often the Sleep mode a platform can go to depends on how many resources such as clocks/voltages can be 
       
   263 	// turned Off or lowered to a suitable level. If different Sleep modes are supported this code may need 
       
   264 	// to be able to find out what power resources are On or Off or used to what level. This could be achieved by
       
   265 	// enquiring the Resource Manager (see \beagle_variant\inc\beagle_power.h).
       
   266 	// Then a decision could be made to what Sleep level we go to.
       
   267 	//
       
   268 	// Example calls:
       
   269 	// Obtain the number of Idle Ticks before the next NTimer expiration
       
   270 	// TInt aTicksLeft = NTimerQ::IdleTime();
       
   271 	// ... 
       
   272 	// Find out the deepest Sleep mode available for current resource usage and sleeping time
       
   273 	// TemplateResourceManager* aManager = TTemplatePowerController::ResourceManager();
       
   274 	// TemplateResourceManager::TSleepModes aMode = aManager -> MapSleepMode(aTicksLeft*MsTickPeriod());
       
   275 	// ...
       
   276 	// Find out the state of some particular resources
       
   277 	// TBool aResourceState = aManager -> GetResourceState(TemplateResourceManager::AsynchBinResourceUsedByZOnly);
       
   278 	// TUint aResourceLevel = aManager -> GetResourceLevel(TemplateResourceManager::SynchMlResourceUsedByXOnly);
       
   279 	// ...
       
   280 
       
   281 #ifdef ENABLE_WFI
       
   282 	TInt irq = NKern::DisableAllInterrupts();
       
   283 
       
   284 # ifdef IDLE_TICK_SUPPRESSION
       
   285 	TInt maxSleepTicks = NTimerQ::IdleTime();
       
   286 	TInt suppressedTicks = Omap3::MsTick::SuppressIdleTicks( maxSleepTicks );
       
   287 # endif
       
   288 
       
   289 	ArmWaitForInterrupt();
       
   290 
       
   291 
       
   292 # ifdef IDLE_TICK_SUPPRESSION
       
   293 	if( suppressedTicks > 0 )
       
   294 		{
       
   295 		suppressedTicks = Omap3::MsTick::EndIdleTickSuppression( suppressedTicks );
       
   296 		if( suppressedTicks > 0 )
       
   297 			{
       
   298 			NTimerQ::Advance( suppressedTicks );
       
   299 			}
       
   300 		}
       
   301 # endif
       
   302 
       
   303 	NKern::RestoreInterrupts( irq );
       
   304 #endif // ifdef ENABLE_WFI
       
   305 	}
       
   306 
       
   307 TInt Beagle::VariantHal(TInt aFunction, TAny* a1, TAny* a2)
       
   308 	{
       
   309 	TInt r=KErrNone;
       
   310 	switch(aFunction)
       
   311 		{
       
   312 		case EVariantHalVariantInfo:
       
   313 			{
       
   314 			TVariantInfoV01Buf infoBuf;
       
   315 			TVariantInfoV01& info=infoBuf();
       
   316 			info.iRomVersion=Epoc::RomHeader().iVersion;
       
   317 
       
   318 			//
       
   319 			// TO DO: (mandatory)
       
   320 			//
       
   321 			// Fill in the TVariantInfoV01 info structure
       
   322 			//	info.iMachineUniqueId=;
       
   323 			//	info.iLedCapabilities=;
       
   324 			//	info.iProcessorClockInKHz=;
       
   325 			//	info.iSpeedFactor=;
       
   326 			//
       
   327 			Kern::InfoCopy(*(TDes8*)a1,infoBuf);
       
   328 			break;
       
   329 			}
       
   330 		case EVariantHalDebugPortSet:
       
   331 			{
       
   332 			//
       
   333 			// TO DO: (mandatory)
       
   334 			//
       
   335 			// Write the iDebugPort field of the SuperPage, as in the following EXAMPLE ONLY:
       
   336 			//
       
   337 			TUint32 thePort = (TUint32)a1;
       
   338 			switch(thePort)
       
   339 				{
       
   340 				case 1:
       
   341 				case 2:
       
   342 				case 3:
       
   343 					TheVariant.iDebugInitialised=EFalse;
       
   344 				case (TUint32)KNullDebugPort:
       
   345 					Kern::SuperPage().iDebugPort = thePort;
       
   346 					break;
       
   347 				default:
       
   348 					r=KErrNotSupported;
       
   349 				}
       
   350 			break;
       
   351 			}
       
   352 		case EVariantHalDebugPortGet:
       
   353 			{
       
   354 			kumemput32(a1, &Kern::SuperPage().iDebugPort, sizeof(TUint32));
       
   355 			break;
       
   356 			}
       
   357 		case EVariantHalSwitches:
       
   358 			{
       
   359 			//
       
   360 			// TO DO: (optional)
       
   361 			//
       
   362 			// Read the state of any switches, as in the following EXAMPLE ONLY:
       
   363 			//
       
   364 			TUint32 x = Variant::Switches();
       
   365 			kumemput32(a1, &x, sizeof(x));
       
   366 			break;
       
   367 			}
       
   368 		case EVariantHalLedMaskSet:
       
   369 			{
       
   370 			//
       
   371 			// TO DO: (optional)
       
   372 			//
       
   373 			// Set the state of any on-board LEDs, e.g:
       
   374 			// TUint32 aLedMask=(TUint32)a1;
       
   375 			// Variant::ModifyLedState(~aLedMask,aLedMask);
       
   376 			//
       
   377 			break;
       
   378 			}
       
   379 		case EVariantHalLedMaskGet:
       
   380 			{
       
   381 			//
       
   382 			// TO DO: (optional)
       
   383 			//
       
   384 			// Read the state of any on-board LEDs, e.g:
       
   385 			// TUint32 x = Variant::LedState();
       
   386 			// kumemput32(a1, &x, sizeof(x));
       
   387 			//
       
   388 			break;
       
   389 			}
       
   390 
       
   391 		case EVariantHalCustomRestartReason:
       
   392 			{
       
   393 			//Restart reason is stored in super page
       
   394 			TInt x = (Kern::SuperPage().iHwStartupReason & KHtCustomRestartMask) >> KHtCustomRestartShift ;
       
   395 			kumemput32(a1, &x, sizeof(TInt));
       
   396 			break;
       
   397 			}
       
   398 
       
   399 		case EVariantHalCustomRestart:
       
   400 			{
       
   401 			if(!Kern::CurrentThreadHasCapability(ECapabilityPowerMgmt,__PLATSEC_DIAGNOSTIC_STRING("Checked by Hal function EVariantHalCustomRestart")))
       
   402 				return KErrPermissionDenied;
       
   403 			if ((TUint)a1 > KHtCustomRestartMax)
       
   404 				return KErrArgument;
       
   405 			Kern::Restart((TInt)a1 << KHtCustomRestartShift);
       
   406 			}
       
   407 			break;
       
   408 
       
   409 		case EVariantHalCaseState:
       
   410 			{
       
   411 			//
       
   412 			// TO DO: (optional)
       
   413 			//
       
   414 			// Read the state of the case, e.g:
       
   415 			// TUint32 x = Variant::CaseState();
       
   416 			// kumemput32(a1, &x, sizeof(x));
       
   417 			//
       
   418 			break;
       
   419 			}
       
   420 
       
   421 		case EVariantHalPersistStartupMode:
       
   422 			{
       
   423 			if (!Kern::CurrentThreadHasCapability(ECapabilityWriteDeviceData,__PLATSEC_DIAGNOSTIC_STRING("Checked by Hal function EDisplayHalSetBacklightOn")))
       
   424 				return KErrPermissionDenied;
       
   425 
       
   426 			if ((TUint)a1 > KHtRestartStartupModesMax ) // Restart startup mode max value
       
   427 				return KErrArgument;
       
   428 			//
       
   429 			// TO DO: (optional)
       
   430 			//
       
   431 			// Store the restart reason locally,
       
   432 			// which will eventually be picked up by
       
   433 			// the power controller, e.g:
       
   434 			// iCustomRestartReason = (TUint)a1;
       
   435 			break;
       
   436 			}
       
   437 
       
   438 
       
   439 		case EVariantHalGetPersistedStartupMode:
       
   440 			{
       
   441 			//
       
   442 			// TO DO: (optional)
       
   443 			//
       
   444 			// Read the restart startup mode, e.g:
       
   445 			// TInt startup = (Kern::SuperPage().iHwStartupReason & KHtRestartStartupModesMask) >> KHtRestartStartupModesShift;
       
   446 			// kumemput32(a1, &startup, sizeof(TInt));
       
   447 			break; 			
       
   448 			}
       
   449 
       
   450 		case EVariantHalGetMaximumCustomRestartReasons:
       
   451 			{
       
   452 			//
       
   453 			// TO DO: (optional)
       
   454 			//
       
   455 			// Read the maximum custom restart reason, e.g:
       
   456 			// kumemput32(a1, &KHtCustomRestartMax, sizeof(TUint));
       
   457 			break;
       
   458 			}
       
   459 
       
   460 
       
   461 		case EVariantHalGetMaximumRestartStartupModes:
       
   462 			{
       
   463 			//
       
   464 			// TO DO: (optional)
       
   465 			//
       
   466 			// Read the maximum restart startup mode, e.g:
       
   467 			// kumemput32(a1, &KHtRestartStartupModesMax, sizeof(TUint));
       
   468 			break;
       
   469 			}
       
   470 		
       
   471 
       
   472 		default:
       
   473 			r=KErrNotSupported;
       
   474 			break;
       
   475 		}
       
   476 	return r;
       
   477 	}
       
   478 
       
   479 TPtr8 Beagle::MachineConfiguration()
       
   480 	{
       
   481 	return TPtr8((TUint8*)&Kern::MachineConfig(),sizeof(TActualMachineConfig),sizeof(TActualMachineConfig));
       
   482 	}
       
   483 
       
   484 
       
   485 EXPORT_C void Variant::PowerReset()
       
   486 	{
       
   487 	//
       
   488 	// TO DO: (optional)
       
   489 	//
       
   490 	// Reset all power supplies
       
   491 	//
       
   492 	}
       
   493 
       
   494 EXPORT_C TUint Variant::Switches()
       
   495 	{
       
   496 	//
       
   497 	// TO DO: (optional)
       
   498 	//
       
   499 	// Read the state of on-board switches
       
   500 	//
       
   501 	return 0;		// EXAMPLE ONLY
       
   502 	}
       
   503 
       
   504 // USB Client controller
       
   505 
       
   506 TBool Beagle::UsbClientConnectorDetectable()
       
   507 	{
       
   508 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::UsbClientConnectorDetectable"));
       
   509 
       
   510 	// TO DO: The return value should reflect the actual situation.
       
   511 	return ETrue;
       
   512 	}
       
   513 
       
   514 
       
   515 TBool Beagle::UsbClientConnectorInserted()
       
   516  	{
       
   517 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::UsbClientConnectorInserted"));
       
   518 
       
   519 	// TO DO: Query cable status here. The return value should reflect the actual current state.
       
   520 	return ETrue;
       
   521 	}
       
   522 
       
   523 
       
   524 TInt Beagle::RegisterUsbClientConnectorCallback(TInt (*aCallback)(TAny*), TAny* aPtr)
       
   525 	{
       
   526 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::RegisterUsbClientConnectorCallback"));
       
   527 
       
   528 	iUsbClientConnectorCallback = aCallback;
       
   529 	iUsbClientConnectorCallbackArg = aPtr;
       
   530 
       
   531 	// TO DO: Register and enable the interrupt(s) for detecting USB cable insertion/removal here.
       
   532 	// (Register UsbClientConnectorIsr.)
       
   533 
       
   534 	// TO DO: The return value should reflect the actual situation.
       
   535 	return KErrNone;
       
   536 	}
       
   537 
       
   538 
       
   539 void Beagle::UnregisterUsbClientConnectorCallback()
       
   540 	{
       
   541 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::UnregisterUsbClientConnectorCallback"));
       
   542 
       
   543 	// TO DO: Disable and unbind the interrupt(s) for detecting USB cable insertion/removal here.
       
   544 
       
   545 	iUsbClientConnectorCallback = NULL;
       
   546 	iUsbClientConnectorCallbackArg = NULL;
       
   547 	}
       
   548 
       
   549 
       
   550 TBool Beagle::UsbSoftwareConnectable()
       
   551 	{
       
   552 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::UsbSoftwareConnectable"));
       
   553 
       
   554 	// TO DO: The return value should reflect the actual situation.
       
   555 	return ETrue;
       
   556 	}
       
   557 
       
   558 
       
   559 TInt Beagle::UsbConnect()
       
   560 	{
       
   561 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::UsbConnect"));
       
   562 
       
   563 	// TO DO: Do here whatever is necessary for the UDC to appear on the bus (and thus to the host).
       
   564 
       
   565 	return KErrNone;
       
   566 	}
       
   567 
       
   568 
       
   569 TInt Beagle::UsbDisconnect()
       
   570 	{
       
   571 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::UsbDisconnect"));
       
   572 
       
   573 	// TO DO: Do here whatever is necessary for the UDC to appear disconnected from the bus (and thus from the
       
   574 	// host).
       
   575 
       
   576 	return KErrNone;
       
   577 	}
       
   578 
       
   579 
       
   580 void Beagle::UsbClientConnectorIsr(TAny *aPtr)
       
   581 //
       
   582 // Services the USB cable interrupt.
       
   583 //
       
   584 	{
       
   585 	__KTRACE_OPT(KHARDWARE, Kern::Printf("Beagle::UsbClientConnectorIsr()"));
       
   586 
       
   587 	Beagle* tm = static_cast<Beagle*>(aPtr);
       
   588 
       
   589 	// TO DO: Service interrupt here: determmine cause, clear condition flag (if applicable), etc.
       
   590 
       
   591 	if (tm->UsbClientConnectorInserted())
       
   592 		{
       
   593 		__KTRACE_OPT(KHARDWARE, Kern::Printf(" > USB cable now inserted."));
       
   594 		}
       
   595 	else
       
   596 		{
       
   597 		__KTRACE_OPT(KHARDWARE, Kern::Printf(" > USB cable now removed."));
       
   598 		}
       
   599 
       
   600 	// Important: Inform the USB stack.
       
   601 	if (tm->iUsbClientConnectorCallback)
       
   602 		{
       
   603 		(*tm->iUsbClientConnectorCallback)(tm->iUsbClientConnectorCallbackArg);
       
   604 		}
       
   605 	}
       
   606 
       
   607 // Used to convert time to BCD and vice-versa
       
   608 const TInt KSecsPerMin = 60;
       
   609 const TInt KSecsPerHour = 60*KSecsPerMin;
       
   610 const TInt KSecsPerDay = 24*KSecsPerHour;
       
   611 //const TInt KSecsPerLeapYr = 366*KSecsPerDay;
       
   612 const TInt KSecsPerYr = 365*KSecsPerDay;
       
   613 const TInt KSecsDaysPer4Years = (3*KSecsPerYr)+ 366*KSecsPerDay;
       
   614 
       
   615 //#define BCDTONUM0_3_4_7(a) ((a&0xf)+(((a)>>4)*10))
       
   616 #define BCDTONUM0_3_4_6(a) ((a&0xf)+((((a)>>4)&7)*10))
       
   617 
       
   618 // Days in each month
       
   619 LOCAL_D const TInt8 mTab[2][12]=
       
   620     {
       
   621     {31,28,31,30,31,30,31,31,30,31,30,31}, // 28 days in Feb
       
   622     {31,29,31,30,31,30,31,31,30,31,30,31}  // 29 days in Feb
       
   623     };
       
   624 
       
   625 void GetMonthData(TInt aDayInYear, TBool aLeap, TUint8& aMonth, TUint8& aDay )
       
   626 /**
       
   627  Work out day of the month and month
       
   628  @param aDayInYear	Day of the year
       
   629  @param aLeap		True if it is a leap year
       
   630  @param aMonth		Return month (range 01-12)
       
   631  @param aDay		Return day of the month (range 01-31)
       
   632  */
       
   633 {
       
   634 	TInt i;
       
   635 	TInt runtot=0;
       
   636 	for (i=0; i<12; i++)
       
   637 	{
       
   638 		if ((aDayInYear>=runtot) && (aDayInYear < mTab[aLeap][i]+runtot))
       
   639 		{
       
   640 			// Month and day of the month both start from 1, rather than
       
   641 			// zero (hence the +1)
       
   642 			aMonth=i+1;
       
   643 			aDay=aDayInYear-runtot+1;
       
   644 			break;
       
   645 		}
       
   646 		runtot+=mTab[aLeap][i];
       
   647 	}
       
   648 }
       
   649 
       
   650 LOCAL_C void SecondsToYMD( const TInt aTime, TUint8& aYear, TUint8& aMonth, TUint8& aDay )
       
   651 /**
       
   652  Work out year, day of the month and month
       
   653  @param aTime	Time in secs from year 2000
       
   654  @param aYear	Return year number
       
   655  @param aMonth	Return month (range 01-12)
       
   656  @param aDay	Return day of the month (range 01-31)
       
   657  */
       
   658 {
       
   659 	// Work out year within 4 years first
       
   660 	aYear = (aTime / KSecsDaysPer4Years)*4;
       
   661 	aDay=0;
       
   662 	aMonth=0;
       
   663 	TInt adjyear = aTime % KSecsDaysPer4Years;
       
   664 	
       
   665 	
       
   666 	if (adjyear<KSecsPerYr + KSecsPerDay)
       
   667 		{
       
   668 		GetMonthData(adjyear/KSecsPerDay, ETrue, aMonth, aDay);
       
   669 		}
       
   670 	else
       
   671 		{
       
   672 		adjyear-=(KSecsPerYr + KSecsPerDay);
       
   673 		aYear+=(adjyear/KSecsPerYr)+1;
       
   674 		GetMonthData((adjyear%KSecsPerYr)/KSecsPerDay, EFalse, aMonth, aDay);
       
   675 		}
       
   676 }
       
   677 
       
   678 
       
   679 EXPORT_C TInt  Beagle::SystemTimeInSecondsFrom2000(TInt& aTime)
       
   680 	{
       
   681 	
       
   682 	if(!TPS65950::Initialized())
       
   683 		{
       
   684 		return KErrNotSupported;
       
   685 		}
       
   686 
       
   687 	TPS65950::TRtcTime  time;
       
   688 	TPS65950::GetRtcData( time );
       
   689 		 
       
   690 	aTime = time.iSecond;
       
   691 	aTime += time.iMinute * KSecsPerMin;
       
   692 	aTime += time.iHour * KSecsPerHour;
       
   693 
       
   694 	// Careful - day starts from 1
       
   695 	aTime += (time.iDay-1) * KSecsPerDay;
       
   696 
       
   697 	// Determine whether it is a leap year, for the purpose of this chip
       
   698 	// years run from 2000 onwards and the driver won't care beyond
       
   699 	// yr2000 + 0x7fffffff(secs) (60 odd years). In brief, we can just divide
       
   700 	// by 4 and ignore the problem of years divisible by 100
       
   701 	TInt yrs= time.iYear;
       
   702 	TUint yrsMod4 = yrs%4;
       
   703 	TBool isLeap = (yrsMod4) ? EFalse : ETrue;
       
   704 
       
   705 	// Careful - month starts from 1
       
   706 	for (TInt i=0; i < time.iMonth-1; i++)
       
   707 		{
       
   708 		aTime += mTab[isLeap][i] * KSecsPerDay;
       
   709 		}
       
   710 	
       
   711 	aTime += (yrs/4) * KSecsDaysPer4Years;
       
   712 	
       
   713 	if ( isLeap )
       
   714 		{
       
   715 		// Add KSecsPerDay, because first year is always a leap year
       
   716 		aTime+=(KSecsPerYr*(yrsMod4))+KSecsPerDay;
       
   717 		}
       
   718 	return KErrNone;
       
   719 	}
       
   720 
       
   721 EXPORT_C TInt Beagle::SetSystemTimeInSecondsFrom2000(TInt aTime)
       
   722 	{
       
   723 	if(!TPS65950::Initialized())
       
   724 		{
       
   725 		return KErrNotSupported;
       
   726 		}
       
   727 		
       
   728 	TPS65950::TRtcTime  rtc;	
       
   729 	TInt secs = aTime % KSecsPerMin;
       
   730 	TInt mins_insecs = (aTime % KSecsPerHour) - secs;
       
   731 	TInt hours_insecs = (aTime % KSecsPerDay) - mins_insecs - secs;
       
   732 
       
   733 	rtc.iSecond = secs;
       
   734 	rtc.iMinute = mins_insecs/KSecsPerMin;
       
   735 	rtc.iHour = hours_insecs/KSecsPerHour;
       
   736 
       
   737 	SecondsToYMD( aTime, rtc.iYear, rtc.iMonth, rtc.iDay);
       
   738 	
       
   739 	TPS65950::SetRtcData( rtc );
       
   740 
       
   741 	return KErrNone;
       
   742 	}
       
   743 
       
   744 
       
   745 TInt Beagle::IsExternalInterrupt(TInt /*anId*/)
       
   746 	{
       
   747 	return EFalse;
       
   748 	}
       
   749 
       
   750 TInt Beagle::InterruptBind(TInt /*anId*/, TIsr /*anIsr*/, TAny* /*aPtr*/)
       
   751 	{
       
   752 	return KErrNotSupported;
       
   753 	}
       
   754 
       
   755 TInt Beagle::InterruptUnbind(TInt /*anId*/)
       
   756 	{
       
   757 	return KErrNotSupported;
       
   758 	}
       
   759 
       
   760 TInt Beagle::InterruptEnable(TInt /*anId*/)
       
   761 	{
       
   762 	return KErrNotSupported;
       
   763 	}
       
   764 
       
   765 TInt Beagle::InterruptDisable(TInt /*anId*/)
       
   766 	{
       
   767 	return KErrNotSupported;
       
   768 	}
       
   769 
       
   770 TInt Beagle::InterruptClear(TInt /*anId*/)
       
   771 	{
       
   772 	return KErrNotSupported;
       
   773 	}
       
   774 
       
   775 
       
   776 
       
   777 
       
   778 
       
   779 
       
   780 //---eof