camera.h File Reference

Camera functions for the ARM9. More...

#include <stdbool.h>
#include <stddef.h>

Macros
#define	CAM_MCNT_PWR_18V_CORE   BIT(4)
	1.8V core voltage rail enable
#define	CAM_MCNT_PWR_18V_IO   BIT(5)
	1.8V IO voltage rail enable
#define	CAM_MCNT_PWR_28V   BIT(6)
	2.8V voltage rail enable
#define	CAM_MCNT_READY   BIT(7)
	Ready status.

Enumerations
enum	CameraDevice {   CAMERA_INNER = 0 ,   CAMERA_OUTER = 1 ,   CAMERA_NONE = 2 }
	Types of camera in a DSi. More...

Functions
bool	cameraDeinit (void)
	Deinitializes the camera driver.
bool	cameraInit (void)
	Initializes the camera driver.
bool	cameraSelect (CameraDevice device)
	Selects the active camera.
bool	cameraSetCaptureMode (u8 captureMode)
	Forcibly sets Capture mode.
bool	cameraStartTransfer (u16 *buffer, u8 captureMode, u8 ndmaId)
	Starts a camera transfer using the specified NDMA channel.
static void	cameraStopTransfer (void)
	Stops a camera transfer.
static bool	cameraTransferActive (void)
	Checks if a camera transfer is active.

Detailed Description

Camera functions for the ARM9.

Enumeration Type Documentation

CameraDevice

enum CameraDevice

Types of camera in a DSi.

Enumerator
CAMERA_INNER	Internal camera (facing the player)
CAMERA_OUTER	External camera (facing away from the player)
CAMERA_NONE	Don't select any camera.

Function Documentation

cameraDeinit()

bool cameraDeinit

(

void

)

Deinitializes the camera driver.

Returns

It returns true on success, false on failure.

cameraInit()

bool cameraInit

(

void

)

Initializes the camera driver.

Returns

It returns true on success, false on failure.

cameraSelect()

bool cameraSelect

(

CameraDevice

device

)

Selects the active camera.

Parameters

device

Camera to use (internal or external).

Returns

It returns true on success, false on failure.

cameraSetCaptureMode()

bool cameraSetCaptureMode

(

u8

captureMode

)

Forcibly sets Capture mode.

Parameters

captureMode

Returns

It returns true on success, false on failure.

cameraStartTransfer()

bool cameraStartTransfer	(	u16 *	buffer,
		u8	captureMode,
		u8	ndmaId
	)

Starts a camera transfer using the specified NDMA channel.

It sets the capture mode if the previous mode is unknown.

To check if the transfer is finished, use ndmaBusy() and cameraTransferActive(). If either of them is busy, the transfer is in progress.

Parameters

buffer	Buffer where the captured image will be stored.
captureMode	Normally MCUREG_APT_SEQ_CMD_PREVIEW or MCUREG_APT_SEQ_CMD_CAPTURE.
ndmaId	NDMA channel to use (0 - 3).

Returns

It returns true on success, false on failure.

cameraStopTransfer()

static void cameraStopTransfer ( void  )

inlinestatic

Stops a camera transfer.

Call this function after the NDMA transfer has ended.

cameraTransferActive()

static bool cameraTransferActive ( void  )

inlinestatic

Checks if a camera transfer is active.

Returns

Returns true if the transfer is active.