C++ (Cpp) _go32_dpmi_free_iret_wrapper示例

示例#1

文件： net_comx.c 项目： luaman/qforge-nuq

static void ComPort_Disable(ComPort *p)
{
	if (!p->enabled)
	{
		Con_Printf("Already disabled\n");
		return;
	}

	// disable interrupts at the uart
	outportb (p->uart + INTERRUPT_ENABLE_REGISTER, 0);

	// disable our interrupt at the PIC
	outportb (0x21, inportb (0x21) | (1<<p->irq));

	// disable interrupts at the processor
	disable();

	// restore the old interrupt handler
	_go32_dpmi_set_protected_mode_interrupt_vector(p->irq + 8, &p->protectedModeSaveInfo);
	_go32_dpmi_free_iret_wrapper(&p->protectedModeInfo);

	// enable interrupts at the processor
	enable();

	p->enabled = false;
}

示例#2

文件： ser_port.c 项目： dorienh/smmu

void ShutdownPort ( void )
{
  if(!port_initted)
    return;

  usermsg("shutting down serial port");
  
  OUTPUT(uart + INTERRUPT_ENABLE_REGISTER, 0);
  OUTPUT(uart + MODEM_CONTROL_REGISTER, 0);
  
  OUTPUT(0x20 + 1, INPUT(0x20 + 1) | (1<<irq));
  
  // restore old irq
  asm("cli");
  _go32_dpmi_set_protected_mode_interrupt_vector
    (irqintnum, &oldirqvect);
  _go32_dpmi_free_iret_wrapper(&newirqvect);
  asm("sti");

  //
  // init com port settings to defaults
  //
  regs.x.ax = 0xf3;               //f3= 9600 n 8 1
  regs.x.dx = comport - 1;
  int86 (0x14, &regs, &regs);

  port_initted = false;
}

示例#3

文件： HARNESSKEY.C 项目： iastewar/tetris-x86-assembly

void keyboard_int_remove() {
   // revert to old keyboard ISR
   _go32_dpmi_set_protected_mode_interrupt_vector(9, &OldHandler);

   // free the iret wrapper
   _go32_dpmi_free_iret_wrapper(&NewHandler);

   printf("old keyboard ISR installed\n");
}

示例#4

文件： ints.c 项目： PChambino/bsod-syndrome

void reinstall_c_irq_handler(int irq, _go32_dpmi_seginfo *old_irq) {
	_go32_dpmi_seginfo new_irq;
	_go32_dpmi_get_protected_mode_interrupt_vector(IRQ_VECTOR(irq), &new_irq);

	// importante: reposição do handler original
	_go32_dpmi_set_protected_mode_interrupt_vector(IRQ_VECTOR(irq), old_irq);

	// liberta funcao assembly
	_go32_dpmi_free_iret_wrapper(&new_irq);
}

示例#5

文件： gcctimer.c 项目： adplug/gcctimer

void timer_deinit(void)
{
  /* Reset timer frequency to 18.2Hz */
  timer_setrate(0);

  /* Reset handler to old one */
  _go32_dpmi_set_protected_mode_interrupt_vector(TIMER_INT, &oldhandler);

  /* Free the IRET wrapper */
  _go32_dpmi_free_iret_wrapper(&myhandler);
}

示例#6

文件： serdos.c 项目： haision/GitHub_C

static void uninstall_isr(struct port *p)
{
    /* Disable interrupts.  */
    outportb(p->baseaddr + MCR, 0);
    outportb(p->baseaddr + IER, 0);
    outportb(p->pic_imr, inportb(p->pic_imr) | (~p->interrupt_enable_mask));

    /* Restore old vector.  */
    disable();
    _go32_dpmi_set_protected_mode_interrupt_vector(p->vector_num, &p->old_vector);
    _go32_dpmi_free_iret_wrapper(&p->new_vector);
    enable();
}

示例#7

文件： PS2V2.C 项目： ahelwer/UofC

/**
 * mouse_delete
 * This function returns us to the old handler's address we saved before.
 **/
void mouse_delete(void)

{
   _go32_dpmi_set_protected_mode_interrupt_vector(0x74,&old_handler);
   _go32_dpmi_free_iret_wrapper(&new_mousehandler);   
}

示例#8

文件： MAIN.C 项目： ahelwer/UofC

/**
 * key_delete
 * This function returns keyboard control to the operating system. This was 
 * given as part of the VBETEST.C example.
 **/
void key_delete(void){
        _go32_dpmi_set_protected_mode_interrupt_vector(9, &old_handler);
        _go32_dpmi_free_iret_wrapper(&new_handler);
}