minix/kernel/arch/i386/hw_intr.h

#ifndef __HW_INTR_X86_H__
#define __HW_INTR_X86_H__

#include "../..//kernel.h"

/* legacy PIC */

_PROTOTYPE(void irq_8259_unmask,(int irq));
_PROTOTYPE(void irq_8259_mask,(int irq));
_PROTOTYPE(void irq_handle,(int irq));

#define hw_intr_mask(irq)	irq_8259_mask(irq)
#define hw_intr_unmask(irq)	irq_8259_unmask(irq)

#endif /* __HW_INTR_X86_H__ */
Hardware interrupts code path cleanup - the PIC master and slave irq handlers don't pass the irq hook pointer but just the irq number. It gives a little bit more information to the C handler as the irq number is not lost - the irq code path is more achitecture independent. i386 hw interrupts are called irq and whereever the code is arch independent enough hw_intr_ functions are called to mask/unmask interrupts - the legacy PIC is not the only possible interrupt controller in the x86 world, therefore the intr_(un)mask functions were renamed to signal their functionality explicitly. APIC will add their own. - masking and unmasking PIC interrupt lines is removed from assembler and all the functionality is rewriten in C and moved to i8259.c - interrupt handlers have to unmask the interrupt line if all irq handlers are done. Assembler does not do it anymore 2009-11-04 14:24:56 +01:00			`#ifndef __HW_INTR_X86_H__`
			`#define __HW_INTR_X86_H__`

			`#include "../..//kernel.h"`

			`/* legacy PIC */`

Fixed some type inconsistencies in the kernel. 2010-01-26 13:26:06 +01:00			`_PROTOTYPE(void irq_8259_unmask,(int irq));`
			`_PROTOTYPE(void irq_8259_mask,(int irq));`
Hardware interrupts code path cleanup - the PIC master and slave irq handlers don't pass the irq hook pointer but just the irq number. It gives a little bit more information to the C handler as the irq number is not lost - the irq code path is more achitecture independent. i386 hw interrupts are called irq and whereever the code is arch independent enough hw_intr_ functions are called to mask/unmask interrupts - the legacy PIC is not the only possible interrupt controller in the x86 world, therefore the intr_(un)mask functions were renamed to signal their functionality explicitly. APIC will add their own. - masking and unmasking PIC interrupt lines is removed from assembler and all the functionality is rewriten in C and moved to i8259.c - interrupt handlers have to unmask the interrupt line if all irq handlers are done. Assembler does not do it anymore 2009-11-04 14:24:56 +01:00			`_PROTOTYPE(void irq_handle,(int irq));`

			`#define hw_intr_mask(irq) irq_8259_mask(irq)`
			`#define hw_intr_unmask(irq) irq_8259_unmask(irq)`

			`#endif /* __HW_INTR_X86_H__ */`