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git-svn-id: file:///Volumes/Transfer/gigaleak_20231201/2020-09-30%20-%20paladin.7z/paladin/ctr_firmware@104 b871894f-2f95-9b40-918c-086798483c85
329 lines
8.8 KiB
C
329 lines
8.8 KiB
C
/*---------------------------------------------------------------------------*
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Project: CtrBrom - libraries - OS
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File: os_timer.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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void timer_handler(void);
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#if 0 // miya
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static void i_osTimerInterruptHandler(void);
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static void i_osWatchdogInterruptHandler( void );
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#endif
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static void i_osStartTimer( u32 count, u8 preScale, OSTimerRepeat repeat, OSTimerIntrReq ireq );
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static void i_osStartWatchDog( u32 count, u8 preScale, OSTimerRepeat repeat, OSTimerIntrReq ireq,
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OSWatchdogMode watchdogMode );
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static u32 osTimerClock = OS_TIMER_CLOCK_DEFAULT;
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/*---------------------------------------------------------------------------*
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Name: osInitTimer
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Description: Initialize Timers
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void osInitTimer( void )
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{
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static BOOL isInit;
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if ( isInit == FALSE )
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{
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isInit = TRUE;
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osTimerClock = OS_TIMER_CLOCK_DEFAULT;
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osDisableTimerAndWatchdog();
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osStopTimer();
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osStopWatchDog();
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osEnableTimerAndWatchdog();
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}
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}
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/*---------------------------------------------------------------------------*
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Name: i_osTimerInterruptHandler
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Description: Timer interrupt handler
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Arguments: None.
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Returns: None.
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*---------------------------------------------------------------------------*/
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#if 0 // miya
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static void i_osTimerInterruptHandler( void )
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{
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reg_OS_CPUTM_EVT = HW_CPUTM_EVT_FLAG;
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}
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/*---------------------------------------------------------------------------*
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Name: i_osWatchdogInterruptHandler
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Description: Watchdog interrupt handler
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Arguments: None.
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Returns: None.
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*---------------------------------------------------------------------------*/
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static void i_osWatchdogInterruptHandler( void )
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{
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reg_OS_CPUWD_EVT = HW_CPUWD_EVT_FLAG;
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}
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#endif
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/*---------------------------------------------------------------------------*
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Name: osStartTimerWithUSec
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Description: Start Timer
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Arguments: micro second
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Returns: None
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*---------------------------------------------------------------------------*/
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void osStartTimerWithUSec( u32 usec, u8 preScale )
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{
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u32 count = ((usec) * (osTimerClock / 1000)) / (preScale+1) / 1000;
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i_osStartTimer( count, preScale, OS_TM_AUTO_RELOAD, OS_TM_INTR_REQ_ENABLE );
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}
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/*---------------------------------------------------------------------------*
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Name: osStartTimerWithMSec
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Description: Start Timer
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Arguments: milli second
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Returns: None
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*---------------------------------------------------------------------------*/
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void osStartTimerWithMSec( u32 msec, u8 preScale )
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{
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u32 count = (((msec) * osTimerClock / 1000)) / (preScale+1);
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i_osStartTimer( count, preScale, OS_TM_AUTO_RELOAD, OS_TM_INTR_REQ_ENABLE );
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}
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/*---------------------------------------------------------------------------*
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Name: osStartTimer
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Description: Start Timer
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Arguments: interval
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Returns: None
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*---------------------------------------------------------------------------*/
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void osStartTimer( u32 count, u8 preScale )
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{
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i_osStartTimer( count, preScale, OS_TM_AUTO_RELOAD, OS_TM_INTR_REQ_ENABLE );
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}
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/*---------------------------------------------------------------------------*
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Name: osStartWatchdog
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Description: Start Watchdog
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Arguments: interval
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watchdogMode
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Returns: None
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*---------------------------------------------------------------------------*/
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void osStartWatchDog( u32 count, u8 preScale, OSWatchdogMode watchdogMode )
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{
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i_osStartWatchDog( count, preScale, OS_TM_SINGLE_SHOT, OS_TM_INTR_REQ_DISABLE, watchdogMode );
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}
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/*---------------------------------------------------------------------------*
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Name: i_osStartTimer
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Description: Start Timer
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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static void i_osStartTimer( u32 count, u8 preScale, OSTimerRepeat repeat, OSTimerIntrReq ireq )
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{
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OSIntrMode intr = osDisableInterrupts();
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reg_OS_TM_CNT = 0;
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reg_OS_TM_LD = count;
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reg_OS_TM_CNT = REG_OS_TM_CNT_E_MASK | repeat | ireq
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| ((preScale <<REG_OS_TM_CNT_PS_SHIFT) & REG_OS_TM_CNT_PS_MASK);
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osRestoreInterrupts( intr );
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}
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/*---------------------------------------------------------------------------*
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Name: i_osStartWatchdog
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Description: Start Watchdog
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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static void i_osStartWatchDog( u32 count, u8 preScale, OSTimerRepeat repeat, OSTimerIntrReq ireq,
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OSWatchdogMode watchdogMode )
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{
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reg_OS_WD_CNT = 0;
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reg_OS_WD_LD = count;
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reg_OS_WD_CNT = REG_OS_WD_CNT_E_MASK | repeat | ireq
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| ((preScale <<REG_OS_WD_CNT_PS_SHIFT) & REG_OS_WD_CNT_PS_MASK)
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| watchdogMode;
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}
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/*---------------------------------------------------------------------------*
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Name: osStopTimer
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Description: Stop Timer
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void osStopTimer( void )
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{
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reg_OS_TM_CNT = 0;
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reg_OS_TM_IF = REG_OS_TM_IF_IF_MASK;
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}
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/*---------------------------------------------------------------------------*
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Name: osStopWatchdog
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Description: Stop Watchdog
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void osStopWatchDog( void )
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{
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reg_OS_WD_CNT = 0;
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reg_OS_WD_IF = REG_OS_WD_IF_IF_MASK;
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}
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/*---------------------------------------------------------------------------*
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Name: osResetWatchdog
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Description: Reset Watchdog
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void osResetWatchdog( void )
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{
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reg_OS_WD_RST = TRUE;
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}
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/*---------------------------------------------------------------------------*
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Name: osDisableWatchdog
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Description: Disable Watchdog
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void osDisableWatchdog( void )
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{
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reg_OS_WD_DIS = TRUE;
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}
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#include <brom/code32.h>
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/*---------------------------------------------------------------------------*
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Name: osEnableTimerAndWatchdog
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Description: Enable Timer & Watchdog
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Arguments: None
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Returns: previous status
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*---------------------------------------------------------------------------*/
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ASM BOOL osEnableTimerAndWatchdog( void )
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{
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stmfd sp!, {r4, lr} // stack requires 8byte alignment
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bl __cpp(osDisableInterrupts)
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mrc p15, 0, r4, c15, c12, 0
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orr r1, r4, #HW_C15_COUNT_ENABLE
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mcr p15, 0, r1, c15, c12, 0
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// <20><><EFBFBD><EFBFBD> r0 <20><> osDisableInterrupts <20>̕Ԃ<CC95><D482>l
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bl __cpp(osRestoreInterrupts)
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mov r0, r4
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// and r0, r4, #HW_CPUTM_ENABLE // retuen value
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ldmfd sp!, {r4, pc} // stack requires 8byte alignment
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}
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/*---------------------------------------------------------------------------*
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Name: osDisableTimerAndWatchdog
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Description: Enable Timer & Watchdog
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Arguments: None
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Returns: previous status
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*---------------------------------------------------------------------------*/
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ASM BOOL osDisableTimerAndWatchdog( void )
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{
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stmfd sp!, {r4, lr} // stack requires 8byte alignment
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bl __cpp(osDisableInterrupts)
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mrc p15, 0, r4, c15, c12, 0
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bic r1, r4, #HW_C15_COUNT_ENABLE
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mcr p15, 0, r1, c15, c12, 0
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// <20><><EFBFBD><EFBFBD> r0 <20><> osDisableInterrupts <20>̕Ԃ<CC95><D482>l
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bl __cpp(osRestoreInterrupts)
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mov r0, r4
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// and r0, r4, #HW_CPUTM_ENABLE // retuen value
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ldmfd sp!, {r4, pc} // stack requires 8byte alignment
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}
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#include <brom/codereset.h>
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/*====== End of main.c ======*/
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