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git-svn-id: file:///Volumes/Transfer/gigaleak_20231201/2020-09-30%20-%20paladin.7z/paladin/ctr_firmware@216 b871894f-2f95-9b40-918c-086798483c85
282 lines
8.4 KiB
C
282 lines
8.4 KiB
C
/*---------------------------------------------------------------------------*
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Project: CtrBrom - libraries - OS
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File: os_tick.c
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Copyright 2008 Nintendo. All rights reserved.
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These coded instructions, statements, and computer programs contain
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proprietary information of Nintendo of America Inc. and/or Nintendo
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Company Ltd., and are protected by Federal copyright law. They may
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not be disclosed to third parties or copied or duplicated in any form,
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in whole or in part, without the prior written consent of Nintendo.
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$Date:: $
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$Rev$
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$Author$
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*---------------------------------------------------------------------------*/
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#include <brom/os.h>
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//----------------------------------------------------------------------
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#ifdef SDK_ARM9
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//---- timer interrupt mask (must be same number with OSi_TICK_TIMER)
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#define OSi_TICK_IE_TIMER (OS_IE_TIMER0 << OSi_TICK_TIMER)
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//---- timer control setting for tick
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#define OSi_TICK_TIMERCONTROL ( REG_OS_TM0CNT_H_E_MASK | REG_OS_TM0CNT_H_I_MASK | OS_TIMER_PRESCALER_64 )
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#ifdef OS_TICK_USE_2TIMERS
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#define OSi_TICK_TIMERCONTROL_H ( REG_OS_TM1CNT_H_E_MASK | REG_OS_TM1CNT_H_I_MASK | REG_OS_TM1CNT_H_CH_MASK )
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#endif // OS_TICK_USE_2TIMERS
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#endif // SDK_ARM9
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//---- flag for initialization tick
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static u16 i_osUseTick = FALSE;
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//---- tick counter
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vu64 i_osTickCounter;
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//---- flag for need to re-set timer
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BOOL i_osNeedResetTimer = FALSE;
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extern u16 i_osIsTimerReserved(int timerNum);
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extern void i_osSetTimerReserved(int timerNum);
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static void i_osCountUpTick(void);
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/*---------------------------------------------------------------------------*
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Name: osInitTick
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Description: initialize 'tick system'
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void osInitTick(void)
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{
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if (!i_osUseTick)
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{
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i_osUseTick = TRUE;
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//---- disable timer interrupt
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osDisableInterruptID(OSi_TICK_IE_TIMER_ID);
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osInitInterrupt();
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osInitTimer();
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i_osTickCounter = 0;
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//---- OS reserves OSi_TICK_TIMER timer
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SDK_ASSERT(!i_osIsTimerReserved(OSi_TICK_TIMER));
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i_osSetTimerReserved(OSi_TICK_TIMER);
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#ifdef SDK_ARM11
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osStopTimer(OSi_TICK_TIMER);
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osEnableTimerReload(OSi_TICK_TIMER);
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osStartTimer(OSi_TICK_TIMER, OS_TICK_LO_MASK, OS_TICK_PRESCALE);
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#else // SDK_ARM9
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//---- setting timer
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osSetTimerControl(OSi_TICK_TIMER, 0);
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#ifdef OS_TICK_USE_2TIMERS
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osSetTimerControl(OSi_TICK_TIMER_H, 0);
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osSetTimerCount(OSi_TICK_TIMER_H, (u16)0);
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osSetTimerControl(OSi_TICK_TIMER_H, (u16)OSi_TICK_TIMERCONTROL_H);
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#endif // OS_TICK_USE_2TIMERS
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osSetTimerCount(OSi_TICK_TIMER, (u16)0);
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osSetTimerControl(OSi_TICK_TIMER, (u16)OSi_TICK_TIMERCONTROL);
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#endif // SDK_ARM9
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//---- set interrupt callback
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osSetInterruptHandler( OSi_TICK_IE_TIMER_ID, i_osCountUpTick );
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//---- enable timer interrupt
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osEnableInterruptID(OSi_TICK_IE_TIMER_ID);
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//---- need to reset
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i_osNeedResetTimer = FALSE;
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}
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}
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/*---------------------------------------------------------------------------*
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Name: osIsTickAvailable
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Description: check tick system is available
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Arguments: None
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Returns: if available, TRUE.
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*---------------------------------------------------------------------------*/
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BOOL osIsTickAvailable(void)
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{
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return i_osUseTick;
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}
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/*---------------------------------------------------------------------------*
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Name: i_osCountUpTick
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Description: timer interrupt handle.
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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static void i_osCountUpTick(void)
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{
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i_osTickCounter++;
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//---- setting for timer
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if (i_osNeedResetTimer)
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{
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#ifdef SDK_ARM11
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osStopTimer(OSi_TICK_TIMER);
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osStartTimer(OSi_TICK_TIMER, OS_TICK_LO_MASK, OS_TICK_PRESCALE);
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#else // SDK_ARM9
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osSetTimerControl(OSi_TICK_TIMER, 0);
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#ifdef OS_TICK_USE_2TIMERS
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osSetTimerControl(OSi_TICK_TIMER_H, 0);
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osSetTimerCount(OSi_TICK_TIMER_H, (u16)0);
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osSetTimerControl(OSi_TICK_TIMER_H, (u16)OSi_TICK_TIMERCONTROL_H);
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#endif // OS_TICK_USE_2TIMERS
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osSetTimerCount((OSTimer)OSi_TICK_TIMER, (u16)0);
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osSetTimerControl(OSi_TICK_TIMER, (u16)OSi_TICK_TIMERCONTROL);
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#endif // SDK_ARM9
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i_osNeedResetTimer = FALSE;
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}
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#ifdef OS_TICK_USE_2TIMERS
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osIsInterruptPendingID((OSIntrID)(OSi_TICK_IE_TIMER_ID-1));
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#endif // OS_TICK_USE_2TIMERS
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// <20><><EFBFBD><EFBFBD><EFBFBD>͂<EFBFBD><CD82><EFBFBD><EFBFBD>Ȃ<EFBFBD><C882>Ă<EFBFBD><C482>A<EFBFBD><41><EFBFBD><EFBFBD><EFBFBD>R<EFBFBD>[<5B><><EFBFBD>o<EFBFBD>b<EFBFBD>N<EFBFBD><4E><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>邩<EFBFBD><E982A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȃ<EFBFBD><C882>H
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// //---- reset callback
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// OSi_EnterTimerCallback(OSi_TICK_TIMER, (void (*)(void *))i_osCountUpTick, 0);
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}
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/*---------------------------------------------------------------------------*
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Name: osGetTick
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Description: get tick value
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Arguments: None
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Returns: tick value
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*---------------------------------------------------------------------------*/
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u64 osGetTick(void)
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{
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u32 countL;
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u64 countH;
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OSIntrMode prev = osDisableInterrupts();
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SDK_ASSERT(i_osUseTick);
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#ifndef OS_TICK_USE_2TIMERS
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countL = osGetTimerCount(OSi_TICK_TIMER);
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#else // OS_TICK_USE_2TIMERS
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{
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u32 countM;
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countM = osGetTimerCount(OSi_TICK_TIMER_H);
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countL = osGetTimerCount(OSi_TICK_TIMER);
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if (osIsInterruptPendingID((OSIntrID)(OSi_TICK_IE_TIMER_ID-1)) &&
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// OSi_TICK_TIMER<45>I<EFBFBD>[<5B>o<EFBFBD>[<5B>t<EFBFBD><74><EFBFBD>[<5B><EFBFBD>
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!(countL & OS_TICK_LO_MSB)
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)
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{
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countM++;
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}
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countL |= countM << 16;
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}
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#endif // OS_TICK_USE_2TIMERS
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#ifdef SDK_ARM11
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// ARM11<31>̓_<CD83>E<EFBFBD><45><EFBFBD>J<EFBFBD>E<EFBFBD><45><EFBFBD>^<5E>AARM9<4D>̓A<CD83>b<EFBFBD>v<EFBFBD>J<EFBFBD>E<EFBFBD><45><EFBFBD>^<5E>̈Ⴂ<CC88>͂<EFBFBD><CD82><EFBFBD><EFBFBD>ŕ<C595><E290B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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countL = OS_TICK_LO_MASK - countL;
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#endif // SDK_ARM11
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countH = i_osTickCounter;
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//---- check if timer interrupt bit is on
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if (osIsInterruptPendingID(OSi_TICK_IE_TIMER_ID) &&
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// countL<74><4C>0xFFFFFFFF<46>Œ<EFBFBD><C592><EFBFBD><EFBFBD>Ɋ<EFBFBD><C98A>荞<EFBFBD>ݗv<DD97><76><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ꍇ<EFBFBD>̑<CC91>
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!(countL & OS_TICK_LO_MSB)
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)
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{
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countH++;
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}
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countH <<= OS_TICK_HI_SHIFT;
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(void)osRestoreInterrupts(prev);
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return countH | countL;
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}
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/*---------------------------------------------------------------------------*
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Name: osGetTickLo
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Description: get tick value (only u16 part)
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Arguments: None
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Returns: tick value (only u16 part)
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*---------------------------------------------------------------------------*/
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#ifndef OS_TICK_USE_2TIMERS
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// OS_TICK_USE_2TIMERS <20>L<EFBFBD><4C><EFBFBD><EFBFBD><EFBFBD>͐<EFBFBD><CD90><EFBFBD><EFBFBD>l<EFBFBD><6C><EFBFBD>擾<EFBFBD>ł<EFBFBD><C582>Ȃ<EFBFBD>
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OSTimerCount osGetTickLo(void)
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{
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SDK_ASSERT(OSi_UseTick);
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return osGetTimerCount(OSi_TICK_TIMER);
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}
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#endif // OS_TICK_USE_2TIMERS
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/*---------------------------------------------------------------------------*
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Name: i_osSetTick
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Description: set tick value
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Arguments: count value of tick to be set
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OS_TICK_USE_2TIMERS <20>L<EFBFBD><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>LO<4C>^<5E>C<EFBFBD>}<7D>[<5B><>
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<20>I<EFBFBD>[<5B>o<EFBFBD>[<5B>t<EFBFBD><74><EFBFBD>[<5B><>HI<48>^<5E>C<EFBFBD>}<7D>[<5B><><EFBFBD>J<EFBFBD>E<EFBFBD><45><EFBFBD>g<EFBFBD>A<EFBFBD>b<EFBFBD>v<EFBFBD><76><EFBFBD>邽<EFBFBD>߁A
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count = 0 <20>ȊO<C88A>ł͐<C582><CD90><EFBFBD><EFBFBD>ɓ<EFBFBD><C993>삵<EFBFBD>Ȃ<EFBFBD>
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Returns: None
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*---------------------------------------------------------------------------*/
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#ifndef OS_TICK_USE_2TIMERS
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void i_osSetTick(u64 count)
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{
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OSIntrMode prev;
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SDK_ASSERT(i_osUseTick);
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prev = osDisableInterrupts();
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i_osNeedResetTimer = TRUE;
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i_osTickCounter = (u64)(count >> OS_TICK_HI_SHIFT);
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#ifdef SDK_ARM11
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osStopTimer(OSi_TICK_TIMER);
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osClearInterruptPendingID(OSi_TICK_IE_TIMER_ID);
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osStartTimer(OSi_TICK_TIMER, (u32)(count & OS_TICK_LO_MASK), OS_TICK_PRESCALE);
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#else // SDK_ARM9
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osSetTimerControl(OSi_TICK_TIMER, 0);
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#ifdef OS_TICK_USE_2TIMERS
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osSetTimerControl(OSi_TICK_TIMER_H, 0);
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#endif // OS_TICK_USE_2TIMERS
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osClearInterruptPendingID(OSi_TICK_IE_TIMER_ID);
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#ifdef OS_TICK_USE_2TIMERS
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osSetTimerCount(OSi_TICK_TIMER_H, (u16)0);
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osSetTimerControl(OSi_TICK_TIMER_H, (u16)OSi_TICK_TIMERCONTROL_H);
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#endif // OS_TICK_USE_2TIMERS
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osSetTimerCount(OSi_TICK_TIMER, (u16)(count & OS_TICK_LO_MASK));
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osSetTimerControl(OSi_TICK_TIMER, (u16)OSi_TICK_TIMERCONTROL);
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#endif // SDK_ARM9
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(void)osRestoreInterrupts(prev);
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}
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#endif // OS_TICK_USE_2TIMERS
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