minix3/lib/libsys/sys_irqctl.c

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2020-02-21 00:59:27 +05:30
#include "syslib.h"
/*===========================================================================*
* sys_irqctl *
*===========================================================================*/
int sys_irqctl(req, irq_vec, policy, hook_id)
int req; /* IRQ control request */
int irq_vec; /* IRQ vector to control */
int policy; /* bit mask for policy flags */
int *hook_id; /* ID of IRQ hook at kernel */
{
message m_irq;
int s;
m_irq.m_type = SYS_IRQCTL;
m_irq.m_lsys_krn_sys_irqctl.request = req;
m_irq.m_lsys_krn_sys_irqctl.vector = irq_vec;
m_irq.m_lsys_krn_sys_irqctl.policy = policy;
m_irq.m_lsys_krn_sys_irqctl.hook_id = *hook_id;
s = _kernel_call(SYS_IRQCTL, &m_irq);
if (req == IRQ_SETPOLICY) *hook_id = m_irq.m_krn_lsys_sys_irqctl.hook_id;
return(s);
}