irq.h File Reference

#include <miniOS/types.h>

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Classes
struct	idt_entry_t
struct	idt_descriptor_t

Macros
#define	PIC1_CMD   0x20
#define	PIC2_CMD   0xA0
#define	PIC1_DATA   0x21
#define	PIC2_DATA   0xA1
#define	PIC_EOI   0x20
#define	NR_IRQS   16
#define	IRQ_TIMER   0
#define	IRQ_KEYBOARD   1
#define	SLAVE_PIC   2
#define	IRQ_COM2   3
#define	IRQ_COM1   4
#define	IRQ_LPT2   5
#define	IRQ_FLOPPY   6
#define	IRQ_LPT1   7
#define	IRQ_RT_CLOCK   8
#define	MASTER_PIC   9
#define	IRQ_AVAILABLE_1   10
#define	IRQ_AVAILABLE_2   11
#define	IRQ_PS2_MOUSE   12
#define	IRQ_COPROCESSOR   13
#define	IRQ_PRIMARY_IDE   14
#define	IRQ_SECONDARY_IDE   15
#define	NR_EXCEPTIONS   32
#define	EXCEPT_DIVIDE_ERROR   0
#define	EXCEPT_DEBUG   1
#define	EXCEPT_NMI_INTERRUPT   2
#define	EXCEPT_BREAKPOINT   3
#define	EXCEPT_OVERFLOW   4
#define	EXCEPT_BOUND_RANGE_EXCEDEED   5
#define	EXCEPT_INVALID_OPCODE   6
#define	EXCEPT_DEVICE_NOT_AVAILABLE   7
#define	EXCEPT_DOUBLE_FAULT   8
#define	EXCEPT_COPROCESSOR_SEGMENT_OVERRUN   9
#define	EXCEPT_INVALID_TSS   10
#define	EXCEPT_SEGMENT_NOT_PRESENT   11
#define	EXCEPT_STACK_SEGMENT_FAULT   12
#define	EXCEPT_GENERAL_PROTECTION   13
#define	EXCEPT_PAGE_FAULT   14
#define	EXCEPT_INTEL_RESERVED_1   15
#define	EXCEPT_FLOATING_POINT_ERROR   16
#define	EXCEPT_ALIGNMENT_CHECK   17
#define	EXCEPT_MACHINE_CHECK   18
#define	EXCEPT_INTEL_RESERVED_2   19
#define	EXCEPT_INTEL_RESERVED_3   20
#define	EXCEPT_INTEL_RESERVED_4   21
#define	EXCEPT_INTEL_RESERVED_5   22
#define	EXCEPT_INTEL_RESERVED_6   23
#define	EXCEPT_INTEL_RESERVED_7   24
#define	EXCEPT_INTEL_RESERVED_8   25
#define	EXCEPT_INTEL_RESERVED_9   26
#define	EXCEPT_INTEL_RESERVED_10   27
#define	EXCEPT_INTEL_RESERVED_11   28
#define	EXCEPT_INTEL_RESERVED_12   29
#define	EXCEPT_INTEL_RESERVED_13   30
#define	EXCEPT_INTEL_RESERVED_14   31
#define	IDT_CALL_GATE   (0b1100)
#define	IDT_INTERRUPT_GATE   (0b1110)
#define	IDT_TRAP_GATE   (0b1111)

Typedefs
typedef void	idt_handler_func(void *interrupt_stack_frame)

Functions
struct idt_entry_t	__attribute__ ((packed))
void	idt_init ()
void	idt_reload (void)
void	idt_set_handler (uint8_t type, addr_t handler_addr, unsigned int dpl, uint8_t gate_type)
void	irq_set_handler (uint8_t irq, idt_handler_func *fn)

Variables
uint16_t	offset_low
uint16_t	selector
uint8_t	irq_stack_index
uint8_t	zero1
uint8_t	type
uint8_t	zero2
uint8_t	dpl
uint8_t	present
uint16_t	offset_middle
uint32_t	offset_high
uint32_t	zero3
uint16_t	size
struct idt_entry_t *	offset

Macro Definition Documentation

EXCEPT_ALIGNMENT_CHECK

#define EXCEPT_ALIGNMENT_CHECK   17

EXCEPT_BOUND_RANGE_EXCEDEED

#define EXCEPT_BOUND_RANGE_EXCEDEED   5

EXCEPT_BREAKPOINT

#define EXCEPT_BREAKPOINT   3

EXCEPT_COPROCESSOR_SEGMENT_OVERRUN

#define EXCEPT_COPROCESSOR_SEGMENT_OVERRUN   9

EXCEPT_DEBUG

#define EXCEPT_DEBUG   1

EXCEPT_DEVICE_NOT_AVAILABLE

#define EXCEPT_DEVICE_NOT_AVAILABLE   7

EXCEPT_DIVIDE_ERROR

#define EXCEPT_DIVIDE_ERROR   0

EXCEPT_DOUBLE_FAULT

#define EXCEPT_DOUBLE_FAULT   8

EXCEPT_FLOATING_POINT_ERROR

#define EXCEPT_FLOATING_POINT_ERROR   16

EXCEPT_GENERAL_PROTECTION

#define EXCEPT_GENERAL_PROTECTION   13

EXCEPT_INTEL_RESERVED_1

#define EXCEPT_INTEL_RESERVED_1   15

EXCEPT_INTEL_RESERVED_10

#define EXCEPT_INTEL_RESERVED_10   27

EXCEPT_INTEL_RESERVED_11

#define EXCEPT_INTEL_RESERVED_11   28

EXCEPT_INTEL_RESERVED_12

#define EXCEPT_INTEL_RESERVED_12   29

EXCEPT_INTEL_RESERVED_13

#define EXCEPT_INTEL_RESERVED_13   30

EXCEPT_INTEL_RESERVED_14

#define EXCEPT_INTEL_RESERVED_14   31

EXCEPT_INTEL_RESERVED_2

#define EXCEPT_INTEL_RESERVED_2   19

EXCEPT_INTEL_RESERVED_3

#define EXCEPT_INTEL_RESERVED_3   20

EXCEPT_INTEL_RESERVED_4

#define EXCEPT_INTEL_RESERVED_4   21

EXCEPT_INTEL_RESERVED_5

#define EXCEPT_INTEL_RESERVED_5   22

EXCEPT_INTEL_RESERVED_6

#define EXCEPT_INTEL_RESERVED_6   23

EXCEPT_INTEL_RESERVED_7

#define EXCEPT_INTEL_RESERVED_7   24

EXCEPT_INTEL_RESERVED_8

#define EXCEPT_INTEL_RESERVED_8   25

EXCEPT_INTEL_RESERVED_9

#define EXCEPT_INTEL_RESERVED_9   26

EXCEPT_INVALID_OPCODE

#define EXCEPT_INVALID_OPCODE   6

EXCEPT_INVALID_TSS

#define EXCEPT_INVALID_TSS   10

EXCEPT_MACHINE_CHECK

#define EXCEPT_MACHINE_CHECK   18

EXCEPT_NMI_INTERRUPT

#define EXCEPT_NMI_INTERRUPT   2

EXCEPT_OVERFLOW

#define EXCEPT_OVERFLOW   4

EXCEPT_PAGE_FAULT

#define EXCEPT_PAGE_FAULT   14

EXCEPT_SEGMENT_NOT_PRESENT

#define EXCEPT_SEGMENT_NOT_PRESENT   11

EXCEPT_STACK_SEGMENT_FAULT

#define EXCEPT_STACK_SEGMENT_FAULT   12

IDT_CALL_GATE

#define IDT_CALL_GATE   (0b1100)

IDT_INTERRUPT_GATE

#define IDT_INTERRUPT_GATE   (0b1110)

IDT_TRAP_GATE

#define IDT_TRAP_GATE   (0b1111)

IRQ_AVAILABLE_1

#define IRQ_AVAILABLE_1   10

IRQ_AVAILABLE_2

#define IRQ_AVAILABLE_2   11

IRQ_COM1

#define IRQ_COM1   4

IRQ_COM2

#define IRQ_COM2   3

IRQ_COPROCESSOR

#define IRQ_COPROCESSOR   13

IRQ_FLOPPY

#define IRQ_FLOPPY   6

IRQ_KEYBOARD

#define IRQ_KEYBOARD   1

IRQ_LPT1

#define IRQ_LPT1   7

IRQ_LPT2

#define IRQ_LPT2   5

IRQ_PRIMARY_IDE

#define IRQ_PRIMARY_IDE   14

IRQ_PS2_MOUSE

#define IRQ_PS2_MOUSE   12

IRQ_RT_CLOCK

#define IRQ_RT_CLOCK   8

IRQ_SECONDARY_IDE

#define IRQ_SECONDARY_IDE   15

IRQ_TIMER

#define IRQ_TIMER   0

MASTER_PIC

#define MASTER_PIC   9

NR_EXCEPTIONS

#define NR_EXCEPTIONS   32

NR_IRQS

#define NR_IRQS   16

PIC1_CMD

#define PIC1_CMD   0x20

PIC1_DATA

#define PIC1_DATA   0x21

PIC2_CMD

#define PIC2_CMD   0xA0

PIC2_DATA

#define PIC2_DATA   0xA1

PIC_EOI

#define PIC_EOI   0x20

SLAVE_PIC

#define SLAVE_PIC   2

Typedef Documentation

idt_handler_func

typedef void idt_handler_func(void *interrupt_stack_frame)

Function Documentation

__attribute__()

struct idt_entry_t __attribute__

(

(packed)

)

idt_init()

void idt_init

(

)

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idt_reload()

void idt_reload

(

void

)

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idt_set_handler()

void idt_set_handler	(	uint8_t	type,
		addr_t	handler_addr,
		unsigned int	dpl,
		uint8_t	gate_type )

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irq_set_handler()

void irq_set_handler	(	uint8_t	irq,
		idt_handler_func *	fn )

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Variable Documentation

dpl

uint8_t dpl

irq_stack_index

uint8_t irq_stack_index

offset

struct idt_entry_t* offset

offset_high

uint32_t offset_high

offset_low

uint16_t offset_low

offset_middle

uint16_t offset_middle

present

uint8_t present

selector

uint16_t selector

size

uint16_t size

type

uint8_t type

zero1

uint8_t zero1

zero2

uint8_t zero2

zero3

uint32_t zero3