C++ (Cpp) i386_set_idt_entry Examples

Example #1

File: i386-stub-glue.c Project: FullMentalPanic/RTEMS_NEW_TOOL_CHAIN

void exceptionHandler(int vector, void (*handler)(void))
{
  rtems_raw_irq_connect_data excep_raw_irq_data;

  excep_raw_irq_data.idtIndex = vector;

  if(!i386_get_current_idt_entry(&excep_raw_irq_data))
    {
      printk("cannot get idt entry\n");
      rtems_fatal_error_occurred(1);
    }

  if(!i386_delete_idt_entry(&excep_raw_irq_data))
    {
      printk("cannot delete idt entry\n");
      rtems_fatal_error_occurred(1);
    }

  excep_raw_irq_data.on = nop;
  excep_raw_irq_data.off = nop;
  excep_raw_irq_data.isOn = isOn;
  excep_raw_irq_data.hdl = handler;

  if (!i386_set_idt_entry (&excep_raw_irq_data)) {
      printk("raw exception handler connection failed\n");
      rtems_fatal_error_occurred(1);
    }
  return;
}

Example #2

File: l4rtems_timer.c Project: phipse/L4RTEMS

void 
l4rtems_timerInit( void )
{
  printk( "Timer init called\n");
  if( !init )
  {
    init = true;
  
    rtems_raw_irq_connect_data raw_irq_data = {
      BSP_PERIODIC_TIMER + BSP_IRQ_VECTOR_BASE,
      rtems_irq_prologue_0,
      NULL,
      NULL,
      NULL
    };

    i386_delete_idt_entry (&raw_irq_data);

    atexit(l4rtems_timer_exit);            /* Try not to hose the system at exit. */
    if (!i386_set_idt_entry (&timer_raw_irq_data)) {
      printk("raw handler connection failed\n");
      rtems_fatal_error_occurred(1);
    }
  }

  /* wait for ISR to be called at least once */
  Ttimer_val = 0;
  while(Ttimer_val == 0)
    continue;
  printk( "Timer initialized!" );
  Ttimer_val = 0;
}

Example #3

File: i386-stub-glue.c Project: FullMentalPanic/RTEMS_NEW_TOOL_CHAIN

/*
 * In order to have a possibility to break into
 * running program, one has to call this function
 */
void i386_stub_glue_init_breakin(void)
{
  rtems_raw_irq_connect_data uart_raw_irq_data;

  assert(uart_current == BSP_UART_COM1 || uart_current == BSP_UART_COM2);

  if(uart_current == BSP_UART_COM1)
    {
      uart_raw_irq_data.idtIndex = BSP_UART_COM1_IRQ + BSP_IRQ_VECTOR_BASE;
    }
  else
    {
      uart_raw_irq_data.idtIndex = BSP_UART_COM2_IRQ + BSP_IRQ_VECTOR_BASE;
    }

  if(!i386_get_current_idt_entry(&uart_raw_irq_data))
    {
      printk("cannot get idt entry\n");
      rtems_fatal_error_occurred(1);
    }

  if(!i386_delete_idt_entry(&uart_raw_irq_data))
    {
      printk("cannot delete idt entry\n");
      rtems_fatal_error_occurred(1);
    }

  uart_raw_irq_data.on  = BSP_uart_on;
  uart_raw_irq_data.off = BSP_uart_off;
  uart_raw_irq_data.isOn= BSP_uart_isOn;

  /* Install ISR  */
  if(uart_current == BSP_UART_COM1)
    {
      uart_raw_irq_data.idtIndex = BSP_UART_COM1_IRQ + BSP_IRQ_VECTOR_BASE;
      uart_raw_irq_data.hdl = BSP_uart_dbgisr_com1;
    }
  else
    {
      uart_raw_irq_data.idtIndex = BSP_UART_COM2_IRQ + BSP_IRQ_VECTOR_BASE;
      uart_raw_irq_data.hdl = BSP_uart_dbgisr_com2;
    }

  if (!i386_set_idt_entry (&uart_raw_irq_data))
    {
      printk("raw exception handler connection failed\n");
      rtems_fatal_error_occurred(1);
    }

  /* Enable interrupts */
  BSP_uart_intr_ctrl(uart_current, BSP_UART_INTR_CTRL_GDB);

  return;
}

Example #4

File: i386-stub-glue.c Project: AoLaD/rtems

/*
 * In order to have a possibility to break into
 * running program, one has to call this function
 */
void i386_stub_glue_init_breakin(void)
{
  rtems_raw_irq_connect_data uart_raw_irq_data;

  if (port_current == NULL) {
    printk("GDB: no port initialised\n");
    return;
  }

  if ((port_current->ulIntVector == 0) || (port_current->ulIntVector > 16)) {
    printk("GDB: no UART interrupt support\n");
  }
  else {
    uart_vector = port_current->ulIntVector;
    uart_raw_irq_data.idtIndex = port_current->ulIntVector + BSP_IRQ_VECTOR_BASE;

    if (!i386_get_current_idt_entry(&uart_raw_irq_data)) {
      printk("GBD: cannot get idt entry\n");
      rtems_fatal_error_occurred(1);
    }

    if (!i386_delete_idt_entry(&uart_raw_irq_data)) {
      printk("GDB: cannot delete idt entry\n");
      rtems_fatal_error_occurred(1);
    }

    uart_raw_irq_data.on  = BSP_uart_on;
    uart_raw_irq_data.off = BSP_uart_off;
    uart_raw_irq_data.isOn= BSP_uart_isOn;

    /* Install ISR  */
    uart_raw_irq_data.idtIndex = port_current->ulIntVector + BSP_IRQ_VECTOR_BASE;
    uart_raw_irq_data.hdl = i386_gdb_uart_isr;

    if (!i386_set_idt_entry (&uart_raw_irq_data)) {
      printk("GDB: raw exception handler connection failed\n");
      rtems_fatal_error_occurred(1);
    }

    /* Enable interrupts, this is a bit of a hack because we
     * have to know the device but there is no other call. */
    (*port_current->setRegister)(port_current->ulCtrlPort1, 1, 0x01);
  }
}

Example #5

File: timer.c Project: jfpmonteiro/rtems-4.8-rhealstone

void Timer_initialize()
{

  static rtems_boolean First = TRUE;

  if (First)
  {
    First = FALSE;

    atexit(Timer_exit); /* Try not to hose the system at exit. */
    if (!i386_set_idt_entry (&timer_raw_irq_data)) {
      printk("Timer_initialize: raw handler installation failed\n");
      rtems_fatal_error_occurred(1);
    }
  }
  /* wait for ISR to be called at least once */
  Ttimer_val = 0;
  while (Ttimer_val == 0)
    continue;
  Ttimer_val = 0;
}