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I2C Services: Difference between revisions

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add link between 0x00150080 , IR service, and ZL + ZR + Cstick
 
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[[Category:Services]]
[[Category:Services]]
= I2C Service Names =
= I2C Service Names =
* "i2c::MCU"
{| class="wikitable" border="1"
* "i2c::CAM"
|-
* "i2c::LCD"
!  Service names
* "i2c::DEB"
!  Notes
* "i2c::HID"
!  Accessible [[I2C_Registers|deviceIDs]]
* "i2c::IR"
!  Service used by sysmodule
* "i2c::EEP"
|-
* "i2c::NFC" (Only available via the New3DS i2c sysmodule)
| "i2c::MCU"
* "i2c::QTM" (Only available via the New3DS i2c sysmodule)
|
| 0, 3
| [[MCU_Services|MCU]]
|-
| "i2c::CAM"
|
| 1, 2, 4
| [[Camera_Services|Camera]]
|-
| "i2c::LCD"
|
| 5, 6
| [[GSP_Services|GSP]]
|-
| "i2c::DEB"
|
| 7, 8
| Unknown
|-
| "i2c::HID"
|
| 9, 10, 11, 12
| [[HID_Services|HID]]
|-
| "i2c::IR"
|
| 13, and additionally for New3DS i2c module: 17
| [[IR_Services|IR]]
|-
| "i2c::EEP"
|
| 14
| [[Config_Services|Cfg]]
|-
| "i2c::NFC"
| Only available via the New3DS i2c sysmodule.
| 15
| New3DS [[NFC_Services|NFC]]
|-
| "i2c::QTM"
| Only available via the New3DS i2c sysmodule.
| 16
| New3DS [[QTM_Services|QTM]]
|}
 
Each I2C service can only access certain I2C [[I2C_Registers|device(s)]]. When the specified deviceid isn't accessible, error 0xE0A02FEA is returned.


= I2C Service =
= I2C Service =
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| SetRegisterBits8 (u8 devid, u8 regid, u8 regdata, u8 mask)
| SetRegisterBits8 (u8 devid, u8 regid, u8 regdata, u8 mask)
|-
|-
| 0x0002....
| 0x000200C0
|  
|  
| EnableRegisterBits8 (u8 devid, u8 regid, u8 enablemask)
| EnableRegisterBits8 (u8 devid, u8 regid, u8 enablemask)
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| MultiSetRegisterBits16 (u16 regid, u16 regdata, u16 mask, devcount, u8* devidlistptr)
| MultiSetRegisterBits16 (u16 regid, u16 regdata, u16 mask, devcount, u8* devidlistptr)
|-
|-
| 0x0005....
| 0x000500C0
|  
|  
| WriteRegister8 (u8 devid, u8 regid, u8 regdata)
| WriteRegister8 (u8 devid, u8 regid, u8 regdata)
|-
|-
| 0x0006....
| 0x00060080
|  
|  
| WriteCommand8 (u8 devid, u8 cmdid)
| WriteCommand8 (u8 devid, u8 cmdid)
|-
|-
| 0x0007....
| 0x000700C0
|  
|  
| WriteRegister16 (u8 devid, u16 regid, u16 regdata)
| WriteRegister16 (u8 devid, u8 regid, u16 regdata)
|-
|-
| 0x000800C2
| 0x000800C2
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| MultiWriteRegister16 (u16 regid, u16 regdata, devcount, u8* devidlistptr)
| MultiWriteRegister16 (u16 regid, u16 regdata, devcount, u8* devidlistptr)
|-
|-
| 0x0009....
| 0x00090080
|  
|  
| u8 ReadRegister8 (u8 devid, u8 regid)
| u8 ReadRegister8 (u8 devid, u8 regid)
|-
|-
| 0x000A....
| 0x000A0080
|  
|  
| u16 ReadRegister16 (u8 devid, u16 regid)
| u16 ReadRegister16 (u8 devid, u8 regid)
|-
|-
| 0x000B00C2
| 0x000B00C2
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| 0x000E00C2
| 0x000E00C2
|  
|  
| WriteRegisterBuffer8_again? (u8 devid, u8 regid, buffersize, u8* bufferptr)
| WriteRegisterBuffer (u8 devid, u8 regid, unused (bufsize?), (bufsize << 14) <nowiki>|</nowiki> 0x402, void* buffer)
|-
|-
| 0x000F....
| 0x000F00C0
|
|  
|  
| ReadRegisterBuffer (u8 devid, u8 regid, min(bufsize, 0x20)), +0x180: (bufsize << 14) <nowiki>|</nowiki> 2, void* buffer
|-
|-
| 0x0010....
| 0x001000C0
|
|  
|  
| ReadEEPROM (u8 devid = 14, u16 blockid, min(bufsize >> 1, 0x10)), +0x180: (bufsize << 15) <nowiki>|</nowiki> 2, u16* buffer
|-
|-
| 0x001100C2
| 0x001100C2
|  
|  
| ReadRegisterBuffer(u8 devid, u16 regid, buffersize, u8 *buff)
| WriteRegisterBuffer(u8 devid, u8 regid, buffersize, u8 *buff)
|-
|-
| 0x001200C2
| 0x001200C2
|  
|  
| WriteRegisterBuffer(u8 devid, u16 regid, buffersize, u8 *buff)
| ReadRegisterBuffer(u8 devid, u8 regid, buffersize, u8 *buff)
|-
|-
| 0x00130040
| 0x00130040
| [[8.0.0-18]]
| [[8.0.0-18]]
| (u8 inval) Writes an output u8 to cmdreply[2].
| ReadDeviceRaw8(u8 devid) Writes the output read u8 I2C data to cmdreply[2]. After successfully selecting the I2C device, it writes 0xE1 to CNT then loads the output u8 I2C data from the DATA register.
|-
|-
| 0x00140082
| 0x00140082
| [[8.0.0-18]]
| [[8.0.0-18]]
| (u8 devid, u32 buffersize, (buffersize << 14) <nowiki>|</nowiki> 0x402, bufferptr)
| WriteDeviceRaw(u8 devid, u32 buffersize, (buffersize << 14) <nowiki>|</nowiki> 0x402, bufferptr) This is basically the write-data version of command 0x00150080.
|-
|-
| 0x00150080
| 0x00150080
| [[8.0.0-18]]
| [[8.0.0-18]]
| (u8 devid, u32 buffersize, +0x180: (buffersize << 14) <nowiki>|</nowiki> 2, +0x184: bufferptr)
| ReadDeviceRaw(u8 devid, u32 buffersize, +0x180: (buffersize << 14) <nowiki>|</nowiki> 2, +0x184: bufferptr) This is the >1-byte version of command 0x00130040, except value 0xF0 is used for CNT instead of 0xE1.
|}
|}


Commands 0x00130040..0x00150080 are only usable with the New3DS i2c module: on Old3DS the actual command-handler function for each of these commands just return an error.
Commands 0x00130040..0x00150080 are only usable with the New3DS i2c module: on Old3DS the actual command-handler function for each of these commands just return an error. Commands 0x00140082 and 0x00150080 are used by [[NFC_Services|NFC]] module. Command 0x00150080 is also used for reading ZL, ZR, and C-stick data by [[IR Services]].
Retrieved from "https://www.3dbrew.org/wiki/I2C_Services"