/**
* PIT 컨트롤러를 직접 사용하여 ms 동안 대기
*/
void kWaitUsingPIT( const char* pcParameterBuffer )
{
char vcParameter[ 100 ];
int iLength;
PARAMETERLIST stList;
long lMillisecond;
int i;
// 파라미터 초기화
kInitializeParameter( &stList, pcParameterBuffer );
if( kGetNextParameter( &stList, vcParameter ) == 0 )
{
kPrintf( "ex)wait 100(ms)\n" );
return ;
}
lMillisecond = kAToI( pcParameterBuffer, 10 );
kPrintf( "%d ms Sleep Start...\n", lMillisecond );
// 인터럽트를 비활성화하고 PIT 컨트롤러를 통해 직접 시간을 측정
kDisableInterrupt();
for( i = 0 ; i < lMillisecond / 30 ; i++ )
{
kWaitUsingDirectPIT( MSTOCOUNT( 30 ) );
}
kWaitUsingDirectPIT( MSTOCOUNT( lMillisecond % 30 ) );
kEnableInterrupt();
kPrintf( "%d ms Sleep Complete\n", lMillisecond );
// 타이머 복원
kInitializePIT( MSTOCOUNT( 1 ), TRUE );
}
// Wait for ms by PIT controller
void kWaitUsingPIT( const char * pcParameterBuffer )
{
char vcParameter[100];
int iLength;
PARAMETERLIST stList;
long lMillisecond;
int i;
// Initialize parameter
kInitializeParameter( &stList, pcParameterBuffer );
if (kGetNextParameter( &stList, vcParameter ) == 0 )
{
kPrintf( "ex) wait 100(ms)\n" );
return;
}
lMillisecond = kAToI( pcParameterBuffer, 10 );
kPrintf( "%d ms Sleep Start...\n", lMillisecond );
// Disable interrupt and measure the time by PIT controller
kDisableInterrupt();
for ( i = 0 ; i < lMillisecond / 30 ; i++ )
{
kWaitUsingDirectPIT( MSTOCOUNT( 30 ) );
}
kWaitUsingDirectPIT( MSTOCOUNT( lMillisecond % 30 ) );
kEnableInterrupt();
kPrintf( "%d ms Sleep Complete\n", lMillisecond );
// Restore kSetTimer
kInitializePIT( MSTOCOUNT( 1 ), TRUE );
}
/**
* PIT 컨트롤러의 카운터 0 설정
*/
void kSetTimer( const char* pcParameterBuffer )
{
char vcParameter[ 100 ];
PARAMETERLIST stList;
long lValue;
BOOL bPeriodic;
// 파라미터 초기화
kInitializeParameter( &stList, pcParameterBuffer );
// milisecond 추출
if( kGetNextParameter( &stList, vcParameter ) == 0 )
{
kPrintf( "ex)settimer 10(ms) 1(periodic)\n" );
return ;
}
lValue = kAToI( vcParameter, 10 );
// Periodic 추출
if( kGetNextParameter( &stList, vcParameter ) == 0 )
{
kPrintf( "ex)settimer 10(ms) 1(periodic)\n" );
return ;
}
bPeriodic = kAToI( vcParameter, 10 );
kInitializePIT( MSTOCOUNT( lValue ), bPeriodic );
kPrintf( "Time = %d ms, Periodic = %d Change Complete\n", lValue, bPeriodic );
}
/// Execute to wait
void kCommandWait::kTask_do(const char* pcParameter)
{
char caParameter[100];
kCommandParameter clCommandParameter;
long lMillisecond;
if (pcParameter == nullptr)
{
return;
}
// Initialize parameter
clCommandParameter.kInitializeCommandParameter(pcParameter);
if (clCommandParameter.kGetNextParameter(caParameter) == 0)
{
kTask_example();
return;
}
lMillisecond = g_pclStringHelper->kAToI(pcParameter, DECIMAL);
g_pclConsole->kPrintf("%d ms Sleep Start...\n", lMillisecond);
// Disable interrupt, and measure time from PIT directly
g_pclIH->kDisableInterrupt();
for (int iCount = 0; iCount < lMillisecond / 30; iCount++)
{
g_pclPIT->kWaitUsingDirectPIT(MSTOCOUNT(30));
}
g_pclPIT->kWaitUsingDirectPIT(MSTOCOUNT(lMillisecond%30));
g_pclIH->kEnableInterrupt();
g_pclConsole->kPrintf("%d ms sleep complete\n", lMillisecond);
// Restore timer
g_pclPIT->kSetPIT(MSTOCOUNT(1), true);
return;
}
/**
* 프로세서의 속도를 측정
*/
static void kMeasureProcessorSpeed( const char* pcParameterBuffer )
{
int i;
QWORD qwLastTSC, qwTotalTSC = 0;
kPrintf( "Now Measuring." );
// 10초 동안 변화한 타임 스탬프 카운터를 이용하여 프로세서의 속도를 간접적으로 측정
kDisableInterrupt();
for( i = 0 ; i < 200 ; i++ )
{
qwLastTSC = kReadTSC();
kWaitUsingDirectPIT( MSTOCOUNT( 50 ) );
qwTotalTSC += kReadTSC() - qwLastTSC;
kPrintf( "." );
}
// 타이머 복원
kInitializePIT( MSTOCOUNT( 1 ), TRUE );
kEnableInterrupt();
kPrintf( "\nCPU Speed = %d MHz\n", qwTotalTSC / 10 / 1000 / 1000 );
}
// Measure the speed of processor
void kMeasureProcessorSpeed( const char * pcParameterBuffer )
{
int i;
QWORD qwLastTSC, qwTotalTSC = 0;
kPrintf( "Now Measuring." );
// For 10 seconds, calculate processor speed by measuring the change of time stamp
kDisableInterrupt();
for ( i = 0 ; i < 200 ; i++ )
{
qwLastTSC = kReadTSC();
kWaitUsingDirectPIT( MSTOCOUNT( 50 ) );
qwTotalTSC += kReadTSC() - qwLastTSC;
kPrintf( "." );
}
// Restore timer
kInitializePIT( MSTOCOUNT( 1 ), TRUE );
kEnableInterrupt();
kPrintf( "\nCPU Speed = %d MHz\n", qwTotalTSC / 10 / 1000 / 1000 );
}
void Main( void )
{
int iCursorX, iCursorY;
kPrintString( 45, 10,"Pass" );
kInitializeConsole( 0, 11);
kPrintf("Success to enter 64-bit C Kernel\n");
kPrintf("Console Initialization......................[Pass]\n");
// 부팅상황
kGetCursor( &iCursorX, &iCursorY );
kPrintf("GDT Initialize And Switch For 64bit Mode....[ ]");
kInitializeGDTTableAndTSS();
kLoadGDTR( GDTR_STARTADDRESS );
kSetCursor( 45, iCursorY++);
kPrintf("Pass\n");
kPrintf("TSS Segment Load............................[ ]" );
kLoadTR( GDT_TSSSEGMENT );
kSetCursor( 45, iCursorY++);
kPrintf("Pass\n");
kPrintf("IDT Initialize..............................[ ]" );
kInitializeIDTTables();
kLoadIDTR( IDTR_STARTADDRESS );
kSetCursor( 45, iCursorY++);
kPrintf("Pass\n");
kPrintf("Total RAM Size Check........................[ ]" );
kCheckTotalRAMSize();
kSetCursor( 45, iCursorY++);
kPrintf("Pass], Size = %d MB\n", kGetTotalRAMSize());
kPrintf("TCB Pool And Scheduler Initialize...........[Pass]\n" );
iCursorY++;
kInitializeScheduler();
kPrintf("Dynamic Memory Initialize...................[Pass]\n");
iCursorY++;
kInitializeDynamicMemory();
// 1ms 당 인터럽트 발생
kInitializePIT( MSTOCOUNT(1), 1 );
kPrintf("Keyboard Activation.........................[ ]" );
if( kInitializeKeyboard() == TRUE )
{
kSetCursor( 45, iCursorY++);
kPrintf("Pass\n");
kChangeKeyboardLED(FALSE, FALSE, FALSE);
}
else
{
kSetCursor( 45, iCursorY++);
kPrintf("Fail\n");
while(1)
{
;
}
}
kPrintf("PIC Controller And Interrupt Initialize.....[ ]" );
kInitializePIC();
kMaskPICInterrupt( 0 );
kEnableInterrupt();
kSetCursor( 45, iCursorY++);
kPrintf("Pass\n");
kPrintf("HDD Initialize..............................[ ]" );
if(kInitializeHDD() == TRUE)
{
kSetCursor( 45, iCursorY++);
kPrintf("Pass\n");
}
else
{
kSetCursor( 45, iCursorY++);
kPrintf("Fail\n");
}
kPrintf("File System Initialize......................[ ]" );
if(kInitializeFileSystem() == TRUE)
{
kSetCursor( 45, iCursorY++);
kPrintf("Pass\n");
}
else
{
kSetCursor( 45, iCursorY++);
kPrintf("Fail\n");
}
kCreateTask( TASK_FLAGS_LOWEST | TASK_FLAGS_IDLE | TASK_FLAGS_SYSTEM | TASK_FLAGS_THREAD , 0, 0, (QWORD) kIdleTask );
kStartConsoleShell();
}
/**
* 아래 함수는 C 언어 커널의 시작 부분임
*/
void Main( void )
{
int iCursorX, iCursorY;
// 콘솔을 먼저 초기화한 후, 다음 작업을 수행
kInitializeConsole( 0, 10 );
kPrintf( "Switch To IA-32e Mode Success~!!\n" );
kPrintf( "IA-32e C Language Kernel Start..............[Pass]\n" );
kPrintf( "Initialize Console..........................[Pass]\n" );
// 부팅 상황을 화면에 출력
kGetCursor( &iCursorX, &iCursorY );
kPrintf( "GDT Initialize And Switch For IA-32e Mode...[ ]" );
kInitializeGDTTableAndTSS();
kLoadGDTR( GDTR_STARTADDRESS );
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kPrintf( "TSS Segment Load............................[ ]" );
kLoadTR( GDT_TSSSEGMENT );
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kPrintf( "IDT Initialize..............................[ ]" );
kInitializeIDTTables();
kLoadIDTR( IDTR_STARTADDRESS );
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kPrintf( "Total RAM Size Check........................[ ]" );
kCheckTotalRAMSize();
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass], Size = %d MB\n", kGetTotalRAMSize() );
kPrintf( "TCB Pool And Scheduler Initialize...........[Pass]\n" );
iCursorY++;
kInitializeScheduler();
// 1ms당 한번씩 인터럽트가 발생하도록 설정
kInitializePIT( MSTOCOUNT( 1 ), 1 );
kPrintf( "Keyboard Activate And Queue Initialize......[ ]" );
// 키보드를 활성화
if( kInitializeKeyboard() == TRUE )
{
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kChangeKeyboardLED( FALSE, FALSE, FALSE );
}
else
{
kSetCursor( 45, iCursorY++ );
kPrintf( "Fail\n" );
while( 1 ) ;
}
kPrintf( "PIC Controller And Interrupt Initialize.....[ ]" );
// PIC 컨트롤러 초기화 및 모든 인터럽트 활성화
kInitializePIC();
kMaskPICInterrupt( 0 );
kEnableInterrupt();
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
// 셸을 시작
kStartConsoleShell();
}
// Bootstrap Processor용 C 언어 커널 엔트리 포인트
void main( void )
{
int iCursorX, iCursorY;
// 부트 로더에 있는 BSP 플래그를 읽어서 Application Processor이면
// 해당 코어용 초기화 함수로 이동
if(*((BYTE*)BOOTSTRAPPROCESSOR_FLAGADDESS)==0)
{
mainForApplicationProcessor();
}
// Bootstrap Processor가 부팅을 완료했으므로, 0x7C09에 있는 Bootstrap Processor를
// 나타내는 플래그를 0으로 설정하여 Application Processor용으로 코드 실행 경로를 변경
*((BYTE*)BOOTSTRAPPROCESSOR_FLAGADDESS)=0;
// 콘솔을 먼저 초기화한 후, 다음 작업을 수행
kInitializeConsole( 0, 10 );
kPrintf( "Switch To IA-32e Mode Success~!!\n" );
kPrintf( "IA-32e C Language Kernel Start..............[Pass]\n" );
kPrintf( "Initialize Console..........................[Pass]\n" );
// 부팅 상황을 화면에 출력
kGetCursor( &iCursorX, &iCursorY );
kPrintf( "GDT Initialize And Switch For IA-32e Mode...[ ]" );
kInitializeGDTTableAndTSS();
kLoadGDTR( GDTR_STARTADDRESS );
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kPrintf( "TSS Segment Load............................[ ]" );
kLoadTR( GDT_TSSSEGMENT );
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kPrintf( "IDT Initialize..............................[ ]" );
kInitializeIDTTables();
kLoadIDTR( IDTR_STARTADDRESS );
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kPrintf( "Total RAM Size Check........................[ ]" );
kCheckTotalRAMSize();
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass], Size = %d MB\n", kGetTotalRAMSize() );
kPrintf("TCB Poll And Scheduler Initialize...........[Pass]\n");
iCursorY++;
kInitializeScheduler();
// 동적 메모리 초기화
kPrintf("Dynamic Memory Initialize...................[Pass]\n");
iCursorY++;
kInitializeDynamicMemory();
// 1ms당 한 번씩 인터럽트가 발생하도록 설정
kInitializePIT(MSTOCOUNT(1),1);
kPrintf( "Keyboard Activate And Queue Initialize......[ ]" );
// 키보드를 활성화
if( kInitializeKeyboard() == TRUE )
{
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
kChangeKeyboardLED( FALSE, FALSE, FALSE );
}
else
{
kSetCursor( 45, iCursorY++ );
kPrintf( "Fail\n" );
while( 1 ) ;
}
kPrintf( "PIC Controller And Interrupt Initialize.....[ ]" );
// PIC 컨트롤러 초기화 및 모든 인터럽트 활성화
kInitializePIC();
kMaskPICInterrupt( 0 );
kEnableInterrupt();
kSetCursor( 45, iCursorY++ );
kPrintf( "Pass\n" );
// 파일 시스템을 초기화
kPrintf("File System Initialize......................[ ]");
if(kInitializeFileSystem()==TRUE)
{
kSetCursor(45,iCursorY++);
kPrintf("Pass\n");
}
else
{
kSetCursor(45,iCursorY++);
kPrintf("Fail\n");
}
// 시리얼 포트 초기화
kPrintf("Serial Port Initialize......................[Pass]\n");
iCursorY++;
kInitializeSerialPort();
// 유후 태스크를 시스템 스레드로 생성하고 셸을 시작
kCreateTask(TASK_FLAGS_LOWEST | TASK_FLAGS_THREAD | TASK_FLAGS_SYSTEM | TASK_FLAGS_IDLE,0,0,(QWORD)kIdleTask,kGetAPICID());
// 그래픽 모드가 아니면 콘솔 셸 실행
if(*(BYTE*)VBE_STARTGRAPHICMODEFLAGADDRESS==0)
{
kStartConsoleShell();
}
// 그래픽 모드면 그래픽 모드 테스트 함수 실행
else
{
kStartGraphicModeTest();
}
}
