libnds(ARM7): nds/interrupts.h

#define IRQ_HANDLER *(__irq_vector)

#define MAX_INTERRUPTS 25

#define REG_IE (*(vuint32*)0x04000210)

Interrupt Enable Register.

This is the activation mask for the internal interrupts. Unless the corresponding bit is set, the IRQ will be masked out.

#define REG_IF (*(vuint32*)0x04000214)

Interrupt Flag Register.

Since there is only one hardware interrupt vector, the IF register contains flags to indicate when a particular of interrupt has occured. To acknowledge processing interrupts, set IF to the value of the interrupt handled.

#define REG_IME (*(vuint16*)0x04000208)

Interrupt Master Enable Register.

When bit 0 is clear, all interrupts are masked. When it is 1, interrupts will occur if not masked out in REG_IE.

#define VBLANK_INTR_WAIT_FLAGS *(__irq_flags)

typedef enum IRQ_MASKS IRQ_MASK

enum IME_VALUE

values allowed for REG_IME

列挙型の値:

IME_DISABLE	Disable all interrupts.
IME_ENABLE	Enable all interrupts not masked out in REG_IE

00112                {
00113         IME_DISABLE = 0,        
00114         IME_ENABLE = 1, 
00115 };

enum IRQ_MASKS

values allowed for REG_IE and REG_IF

列挙型の値:

IRQ_VBLANK	vertical blank interrupt mask
IRQ_HBLANK	horizontal blank interrupt mask
IRQ_VCOUNT	vcount match interrupt mask
IRQ_TIMER0	timer 0 interrupt mask
IRQ_TIMER1	timer 1 interrupt mask
IRQ_TIMER2	timer 2 interrupt mask
IRQ_TIMER3	timer 3 interrupt mask
IRQ_NETWORK	serial interrupt mask
IRQ_DMA0	DMA 0 interrupt mask
IRQ_DMA1	DMA 1 interrupt mask
IRQ_DMA2	DMA 2 interrupt mask
IRQ_DMA3	DMA 3 interrupt mask
IRQ_KEYS	Keypad interrupt mask
IRQ_CART	GBA cartridge interrupt mask
IRQ_IPC_SYNC	IPC sync interrupt mask
IRQ_FIFO_EMPTY	Send FIFO empty interrupt mask
IRQ_FIFO_NOT_EMPTY	Receive FIFO empty interrupt mask
IRQ_CARD	interrupt mask
IRQ_CARD_LINE	interrupt mask
IRQ_GEOMETRY_FIFO	geometry FIFO interrupt mask
IRQ_LID	interrupt mask
IRQ_SPI	SPI interrupt mask
IRQ_WIFI	WIFI interrupt mask (ARM7)
IRQ_ALL

00047                {
00048         IRQ_VBLANK                      =       BIT(0),         
00049         IRQ_HBLANK                      =       BIT(1),         
00050         IRQ_VCOUNT                      =       BIT(2),         
00051         IRQ_TIMER0                      =       BIT(3),         
00052         IRQ_TIMER1                      =       BIT(4),         
00053         IRQ_TIMER2                      =       BIT(5),         
00054         IRQ_TIMER3                      =       BIT(6),         
00055         IRQ_NETWORK                     =       BIT(7),         
00056         IRQ_DMA0                        =       BIT(8),         
00057         IRQ_DMA1                        =       BIT(9),         
00058         IRQ_DMA2                        =       BIT(10),        
00059         IRQ_DMA3                        =       BIT(11),        
00060         IRQ_KEYS                        =       BIT(12),        
00061         IRQ_CART                        =       BIT(13),        
00062         IRQ_IPC_SYNC            =       BIT(16),        
00063         IRQ_FIFO_EMPTY          =       BIT(17),        
00064         IRQ_FIFO_NOT_EMPTY      =       BIT(18),        
00065         IRQ_CARD                        =       BIT(19),        
00066         IRQ_CARD_LINE           =       BIT(20),        
00067         IRQ_GEOMETRY_FIFO       =       BIT(21),        
00068         IRQ_LID                         =       BIT(22),        
00069         IRQ_SPI                         =       BIT(23),        
00070         IRQ_WIFI                        =       BIT(24),        
00071         IRQ_ALL                         =       (~0)
00072 };

irqClear ( IRQ_MASK irq )

remove the handler associated with the interrupt mask irq.

引数:

irq

Mask associated with the interrupt.

irqDisable ( uint32 irq )

Prevent the given interrupt from occuring.

引数:

irq

The set of interrupt masks to disable.

覚え書き:: Specify multiple interrupts to disable by ORing several IRQ_MASKS.

irqEnable ( uint32 irq )

Allow the given interrupt to occur.

引数:

irq

The set of interrupt masks to enable.

覚え書き:: Specify multiple interrupts to enable by ORing several IRQ_MASKS.

irqInit ( )

Initialise the libnds interrupt system.

Call this function at the start of any application which requires interrupt support. This function should be used in preference to irqInitHandler.

irqInitHandler ( VoidFunctionPointer handler )

Install a user interrupt dispatcher.

This function installs the main interrupt function, all interrupts are serviced through this routine. For most purposes the libnds interrupt dispacther should be used in preference to user code unless you know *exactly* what you're doing.

引数:

handler

Address of the function to use as an interrupt dispatcher

覚え書き:: the function *must* be ARM code

irqSet	(	IRQ_MASK	irq,
		VoidFunctionPointer	handler
	)

Add a handler for the given interrupt mask.

Specify the handler to use for the given interrupt. This only works with the default interrupt handler, do not mix the use of this routine with a user-installed IRQ handler.

引数:

	irq	Mask associated with the interrupt.
	handler	Address of the function to use as an interrupt service routine

覚え書き:: When any handler specifies using IRQ_VBLANK or IRQ_HBLANK, DISP_SR is automatically updated to include the corresponding DISP_VBLANK_IRQ or DISP_HBLANK_IRQ.

警告:: Only one IRQ_MASK can be specified with this function.

vuint32 __irq_flags[]

VoidFunctionPointer __irq_vector[]

nds/interrupts.h

データ構造

マクロ定義

型定義

列挙型

関数

変数

説明

マクロ定義

型定義

列挙型

関数

変数


データ構造
struct	IntTable
マクロ定義
#define	MAX_INTERRUPTS 25
#define	REG_IE ((vuint32)0x04000210)
	Interrupt Enable Register.
#define	REG_IF ((vuint32)0x04000214)
	Interrupt Flag Register.
#define	REG_IME ((vuint16)0x04000208)
	Interrupt Master Enable Register.
#define	VBLANK_INTR_WAIT_FLAGS *(__irq_flags)
#define	IRQ_HANDLER *(__irq_vector)
型定義
typedef enum IRQ_MASKS	IRQ_MASK
列挙型
enum	IRQ_MASKS { IRQ_VBLANK = BIT(0), IRQ_HBLANK = BIT(1), IRQ_VCOUNT = BIT(2), IRQ_TIMER0 = BIT(3), IRQ_TIMER1 = BIT(4), IRQ_TIMER2 = BIT(5), IRQ_TIMER3 = BIT(6), IRQ_NETWORK = BIT(7), IRQ_DMA0 = BIT(8), IRQ_DMA1 = BIT(9), IRQ_DMA2 = BIT(10), IRQ_DMA3 = BIT(11), IRQ_KEYS = BIT(12), IRQ_CART = BIT(13), IRQ_IPC_SYNC = BIT(16), IRQ_FIFO_EMPTY = BIT(17), IRQ_FIFO_NOT_EMPTY = BIT(18), IRQ_CARD = BIT(19), IRQ_CARD_LINE = BIT(20), IRQ_GEOMETRY_FIFO = BIT(21), IRQ_LID = BIT(22), IRQ_SPI = BIT(23), IRQ_WIFI = BIT(24), IRQ_ALL = (~0) }
	values allowed for REG_IE and REG_IF [詳細]
enum	IME_VALUE { IME_DISABLE = 0, IME_ENABLE = 1 }
	values allowed for REG_IME [詳細]
関数
void	irqInit ()
	Initialise the libnds interrupt system.
void	irqSet (IRQ_MASK irq, VoidFunctionPointer handler)
	Add a handler for the given interrupt mask.
void	irqClear (IRQ_MASK irq)
	remove the handler associated with the interrupt mask irq.
void	irqInitHandler (VoidFunctionPointer handler)
	Install a user interrupt dispatcher.
void	irqEnable (uint32 irq)
	Allow the given interrupt to occur.
void	irqDisable (uint32 irq)
	Prevent the given interrupt from occuring.
変数
VoidFunctionPointer	__irq_vector []
vuint32	__irq_flags []