Hardware calibration

File format

The file consists out of a 0x200 big header (though the actual header is only 0x30 bytes, the rest is zerofilled), plus data whose size is indicated in the header.

Header

Offset	Size	Description
0x0	0x4	Magic "CCAL"
0x4	0x4	Version
0x8	0x4	Data size, always 0x7D0
0xC	0x1	Model version (?)
0xD	0x1	???
0xE	0x2	Bitmask of successful Aging tests
0x10	0x20	On devunits and if 0x1FF81006 is 3 or 4 or 7 or 8 or 9 then SHA256, otherwise HMACSHA256 signature of the data section
0x30	0x1D0	Zerofilled, padding for the 512byte block size

Aging masks

Bit	Description
0	FCRAM
1	LCD flicker (always successful)
2	Camera
3	Touch panel (always successful)
4	Circle pad (analog stick)
5	Codec
6	Gyroscope
7	RTC
8	Accelerometer
9	Surround
A	Power saving mode (ABL)
B	3D screen (ULCD)
C	Backlight PWM
D	Analog stick A (???)
E	Camera extensions
F	Power saving mode (ABL) in legacy (DSi/GBA) mode

Data blocks

Offset	Size	ConfigInfoBlk	Description
0x00	0x10	00040000	Touch panel
0x14	0x08	???	Circle pad
0x20	2*	00050000	Screen flicker
0x24	1*	???	RTC
0x28	1*	???	DSPRAM related
0x30	0x8A	???	Camera position
0xBC	0x12	???	Gyroscope
0xD0	0xC	???	Accelerometer
0xE0	0x134	???	Codec
0x218	0x06	???	Programmable Infrared Transmitter (PIT)
0x220	0x214	???	3D filters
0x440	0x20	???	Power saving mode
0x470	0x20	???	???
0x4A0	0x38	0x00050002	Backlight PWM
0x4E0	0x18	???	Circle pad extra
0x500	0xC	???	???
0x510	0x20	???	???
0x540	0x08	???	MCU
0x550	0x02	???	3D screen (ULCD) delay
0x560	0x08	???	Microphone echo cancellation
0x570	0x10C	???	Power saving mode (ABL) extra
0x680	0x08	???	CStick (Right stick)
0x690	0x18	???	Quad Tracking Module (QTM)

Data block formats

Touch

Offset	Description
0x00	s16 RawX0
0x02	s16 RawY0
0x04	s16 PointX0
0x06	s16 PointY0
0x08	s16 RawX1
0x0A	s16 RawY1
0x0C	s16 PointX1
0x0E	s16 PointY1

Circle pad

Offset	Description
0x00	s16 CenterX
0x02	s16 CenterY

Screen flicker

Offset	Description
0	u8 FlickerTop
1	u8 FlickerBottom
2*	Checksum low byte, NOT THIS[0]
3*	Checksum high byte, THIS[1]

RTC

Offset	Description
0	u8 CompensationValue (???)
1*	Checksum byte, NOT THIS[0]

Camera position

Offset	Description
0x00	u32 flags
0x04	float scale
0x08	float RotationZ
0x0C	float TranslationX
0x10	float TranslationY
0x14	float RotationX
0x18	float RotationY
0x1C	float ViewAngleRight
0x20	float ViewAngleLeft
0x24	float ChartDistance(???)
0x28	float CameraDistance
0x2C	s16 ImageWidth
0x2E	s16 ImageHeight
0x30	u8 reserved[0x10]
0x40	u8 ???[0x40]
0x80	s16 aeBaseTarget(???)
0x82	s16 kRL
0x84	s16 kGL
0x86	s16 kBL
0x88	s16 ccmPosition

Gyro

Offset	Description
0x00	s16 ZeroX
0x02	s16 PlusX
0x04	s16 MinusX
0x06	s16 ZeroY
0x08	s16 PlusY
0x0A	s16 MinusY
0x0C	s16 ZeroZ
0x0E	s16 PlusZ
0x10	s16 MinusZ

Accel

Offset	Description
0x00	s16 OffsetX
0x02	s16 ScaleX
0x04	s16 OffsetY
0x06	s16 ScaleY
0x08	s16 OffsetZ
0x0A	s16 ScaleZ

CDC

Offset	Description
0x00	u8 DriverGainHP
0x01	u8 DriverGainSP
0x02	u8 AnalogVolumeHP
0x03	u8 AnalogVolumeSP
0x04	s8 ShutterVolume[2]
0x06	u8 MicrophoneBias
0x07	u8 QuickCharge (???)
0x08	u8 PGA_GAIN (microphone gain)
0x09	u8 reserved[3]
0x0C	s16 FilterHP32[3*5]
0x2A	s16 FilterHP47[3*5]
0x48	s16 FilterSP32[3*5]
0x66	s16 FilterSP47[3*5]
0x84	s16 FilterMic32[(1+2)+((1+4)*5)]
0xBC	s16 FilterMic47[(1+2)+((1+4)*5)]
0xF4	s16 FilterFree[(1+2)+((1+4)*5)]
0x12C	u8 AnalogInterval
0x12D	u8 AnalogStabilize
0x12E	u8 AnalogPrecharge
0x12F	u8 AnalogSense
0x130	u8 AnalogDebounce
0x131	u8 Analog_XP_Pullup
0x132	u8 YM_Driver
0x133	u8 reserved

PIT

Offset	Description
0x00	u16 VisibleFactor
0x02	u16 IRFactor

3D filters

Offset	Description
0x00	u16 SpecialFilter[0x100]
0x200	u32 IIRSurroundFilter[5]

ABL

Offset	Description
0x00	u32 DitherPattern
0x04	s16 StartX
0x06	s16 StartY
0x08	u16 SizeX
0x0A	u16 SizeY
0x0C	s16 GTH_Ratio
0x0E	u8 DitherMode
0x0F	u8 MinRS
0x10	u8 MaxRS
0x11	u8 MinGTH
0x12	u8 MinMax (???)
0x13	u8 ExMax (???)
0x14	u8 inertia
0x15	u8 LutListRS[9]
0x1E	u8 reserved[2]

BLPWM

Offset	Description
0x00	float coefficient[3][3]
0x24	u8 NumLevels
0x25	u8 padding
0x26	u16 brightnesses[7];
0x34	u16 BaseDivisor
0x36	u16 MinimumBrightnessHw

Circle pad extra

Offset	Description
0x00	float ScaleX
0x04	float ScaleY
0x08	s16 MaxX
0x0A	s16 MinX
0x0C	s16 MaxY
0x0E	s16 MinY
0x10	s16 type
0x12	u8 unknown_padding[6]

MCU

Offset	Description
0x00	s16 SVR2_Min (???)
0x02	s16 SVR2_Max (???)
0x04	s16 VolumeSliderMin
0x06	s16 VolumeSliderMax

ULCD delay

Offset	Description
0x00	u8 To2D
0x01	u8 To3D

Microphone echo cancel

Offset	Description
0x00	s8 params[8]

ABL extra

Offset	Description
0x00	u8 MaxInertia
0x01	u8 pad
0x02	u16 PWM_CNT_EX
0x04	u32 Histogram1
0x08	u32 Histogram2
0x0C	u32 adjust[0x40]

CStick

Offset	Description
0x00	u8 ThinningCountX(???)
0x01	u8 ThinningCountY(???)
0x02	u16 reserved[3]

QTM

Offset	Description
0x00	float DivisorAtZero (???)
0x04	float TranslationX
0x08	float TranslationY
0x0C	float RotationZ
0x10	float HorizontalAngle
0x14	float OptimalDistance

Reading

If 0x1FF81006 is 3 or 4 or 7 or 8 or 9 then the callibration data is read from the EEPROM using the i2c:EEP service command 0x001000C0, using offset 0x000 for HWCAL0, and offset 0x800 for HWCAL1. Otherwise attempt is made to read CTRNAND:/ro/sys/HWCAL(0|1).dat instead.