Ejemplo n.º 1
0
int main(void)
{
	// init GPIO
	PORTB = 0b11111000;	// bits 0-2 are driven externally
	DDRB  = 0b00011000;	// data read and data write latches
	PORTC = 0b11111111;	// pullups enabled
	PORTD = 0b11111111;	// pullups enabled
	
	// init UART
	UCSR0B = (1<<TXEN0);//|(1<<RXEN0);
	UBRR0  = BAUD_MIDI;
	
	// init timer
	TCCR1B |= (1<<WGM12)|(1<<CS10);	// timer1 ctc mode, no prescaler
	TIMSK1 |= (1<<OCIE1A);			// enable ctc interrupt
	OCR1A   = F_CPU / RTCFREQ - 1;	// ctc value
	
	// init emulator
	MPU401_Init();
	
	// enable interrupts
	sei();
	
    while(1)	// main loop
    {
		// do isa i/o
		if (QueueUsed() && (~PINB & PIN_DSR)) {
			send_isa_byte(MPU401_ReadData());		// send data if there's any in the buffer
		}
		if (PINB & PIN_CRR) {		// isa control input latch is full
			MPU401_WriteCommand(recv_isa_byte());
		}
		if (PINB & PIN_DRR) {		// isa data input latch is full
			MPU401_WriteData(recv_isa_byte());
		}
		
		// do midi i/o
		send_midi_byte();				// see if we need to send a byte		
		/* if (UCSR0A & (1<<RXC0)) {	// midi uart rx buffer is full
			process_midi_byte();
		} */
    }
}
Ejemplo n.º 2
0
int main ( int argc, char **argv )
{
    extern QueueObject_t   *IndexQ;
    struct sigaction        sa;
    sigset_t                sigmsk;
    uint32                  count;

    GlobalAbort = false;

    /* Parse the command line options */
    MainParseArgs( argc, argv );

    mainThreadId = pthread_self();

    /* 
     * Setup the sigmasks for this thread (which is the parent to all others).
     * This will propogate to all children.
     */
    sigfillset( &sigmsk );
    sigdelset( &sigmsk, SIGUSR1 );
    sigdelset( &sigmsk, SIGUSR2 );
    sigdelset( &sigmsk, SIGINT );
    sigdelset( &sigmsk, SIGSEGV );
    sigdelset( &sigmsk, SIGILL );
    sigdelset( &sigmsk, SIGFPE );
    pthread_sigmask( SIG_SETMASK, &sigmsk, NULL );

    /* Start up the Logging thread */
    logging_initialize(FALSE);

    thread_register( &mainThreadId, "thread_main", NULL );

    /* Setup signal handler for SIGUSR1 (toggles Debug) */
    sa.sa_sigaction = (sigAction_t)logging_toggle_debug;
    sigemptyset( &sa.sa_mask );
    sa.sa_flags = SA_RESTART;
    sigaction( SIGUSR1, &sa, NULL );

    /* Setup the exit handler */
    atexit( MainDelayExit );

    /* Setup signal handler for SIGINT (shut down cleanly) */
    sa.sa_sigaction = signal_interrupt;
    sigemptyset( &sa.sa_mask );
    sa.sa_flags = SA_RESTART;
    sigaction( SIGINT, &sa, NULL );
    
    /* Setup signal handlers that are to be propogated to all threads */
    sa.sa_sigaction = signal_everyone;
    sigemptyset( &sa.sa_mask );
    sa.sa_flags = SA_RESTART | SA_SIGINFO;
    sigaction( SIGUSR2, &sa, NULL );

    /* Setup signal handlers for SEGV, ILL, FPE */
    sa.sa_sigaction = signal_death;
    sigemptyset( &sa.sa_mask );
    sa.sa_flags = SA_RESTART | SA_SIGINFO;
    sigaction( SIGSEGV, &sa, NULL );
    sigaction( SIGILL, &sa, NULL );
    sigaction( SIGFPE, &sa, NULL );

    /* Print the startup log messages */
    LogBanner();

    /* Setup the CLucene indexer */
    clucene_init(1);

    /* Setup the MySQL connection */
    db_setup();
    db_check_schema_main();

    db_rebuild_clucene();

    /* Wait for the clucene thread to finish emptying its queue */
    while( (count = QueueUsed( IndexQ )) > 0 ) {
        LogPrint( LOG_INFO, "%d left", count );
        sleep( 1 );
    }

    GlobalAbort = TRUE;

    return(0);
}