int set_isr(int irq, void (*isr)(void),
_go32_dpmi_seginfo *prev_isr)
{
int vector = irq_vector(irq);
if(_go32_dpmi_get_protected_mode_interrupt_vector(vector, prev_isr)) return -1;
_go32_dpmi_seginfo new_isr;
new_isr.pm_selector = _go32_my_cs( );
new_isr.pm_offset=(unsigned long) isr;
if(_go32_dpmi_set_protected_mode_interrupt_vector(vector, &new_isr)) return -1;
return 0;
}
int set_isr_c_wrapper(int irq, void (*isr)(void), _go32_dpmi_seginfo *prev_isr) {
int vector = irq_vector(irq);
if(_go32_dpmi_get_protected_mode_interrupt_vector(vector, prev_isr))
return -1;
_go32_dpmi_seginfo new_isr;
new_isr.pm_selector = _go32_my_cs();
new_isr.pm_offset=(unsigned long) isr;
/* prepara função assembly para chamar função C */
_go32_dpmi_allocate_iret_wrapper(&new_isr);
if(_go32_dpmi_set_protected_mode_interrupt_vector(vector, &new_isr))
return -1;
return 0;
}
void restore_isr_c_wrapper(int irq, _go32_dpmi_seginfo *isr) {
int vector = irq_vector(irq);
_go32_dpmi_set_protected_mode_interrupt_vector(vector, isr);
}
