Difference between revisions of "I2C Services"
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! Notes | ! Notes | ||
! Accessible [[I2C_Registers|deviceIDs]] | ! Accessible [[I2C_Registers|deviceIDs]] | ||
| + | ! Service used by sysmodule | ||
|- | |- | ||
| "i2c::MCU" | | "i2c::MCU" | ||
| | | | ||
| 0, 3 | | 0, 3 | ||
| + | | [[MCU_Services|MCU]] | ||
|- | |- | ||
| "i2c::CAM" | | "i2c::CAM" | ||
| | | | ||
| 1, 2, 4 | | 1, 2, 4 | ||
| + | | [[Camera_Services|Camera]] | ||
|- | |- | ||
| "i2c::LCD" | | "i2c::LCD" | ||
| | | | ||
| 5, 6 | | 5, 6 | ||
| + | | [[GSP_Services|GSP]] | ||
|- | |- | ||
| "i2c::DEB" | | "i2c::DEB" | ||
| | | | ||
| 7, 8 | | 7, 8 | ||
| + | | Unknown | ||
|- | |- | ||
| "i2c::HID" | | "i2c::HID" | ||
| | | | ||
| 9, 10, 11, 12 | | 9, 10, 11, 12 | ||
| + | | [[HID_Services|HID]] | ||
|- | |- | ||
| "i2c::IR" | | "i2c::IR" | ||
| | | | ||
| 13, and additionally for New3DS i2c module: 17 | | 13, and additionally for New3DS i2c module: 17 | ||
| + | | [[IR_Services|IR]] | ||
|- | |- | ||
| "i2c::EEP" | | "i2c::EEP" | ||
| | | | ||
| 14 | | 14 | ||
| + | | [[Config_Services|Cfg]] | ||
|- | |- | ||
| "i2c::NFC" | | "i2c::NFC" | ||
| Only available via the New3DS i2c sysmodule. | | Only available via the New3DS i2c sysmodule. | ||
| 15 | | 15 | ||
| + | | New3DS [[NFC_Services|NFC]] | ||
|- | |- | ||
| "i2c::QTM" | | "i2c::QTM" | ||
| Only available via the New3DS i2c sysmodule. | | Only available via the New3DS i2c sysmodule. | ||
| 16 | | 16 | ||
| + | | New3DS [[QTM_Services|QTM]] | ||
|} | |} | ||
Revision as of 06:42, 23 January 2017
I2C Service Names
| Service names | Notes | Accessible deviceIDs | Service used by sysmodule |
|---|---|---|---|
| "i2c::MCU" | 0, 3 | MCU | |
| "i2c::CAM" | 1, 2, 4 | Camera | |
| "i2c::LCD" | 5, 6 | GSP | |
| "i2c::DEB" | 7, 8 | Unknown | |
| "i2c::HID" | 9, 10, 11, 12 | HID | |
| "i2c::IR" | 13, and additionally for New3DS i2c module: 17 | IR | |
| "i2c::EEP" | 14 | Cfg | |
| "i2c::NFC" | Only available via the New3DS i2c sysmodule. | 15 | New3DS NFC |
| "i2c::QTM" | Only available via the New3DS i2c sysmodule. | 16 | New3DS QTM |
Each I2C service can only access certain I2C device(s). When the specified deviceid isn't accessible, error 0xE0A02FEA is returned.
I2C Service
| Command Header | Available since system-version | Description |
|---|---|---|
| 0x00010100 | SetRegisterBits8 (u8 devid, u8 regid, u8 regdata, u8 mask) | |
| 0x000200C0 | EnableRegisterBits8 (u8 devid, u8 regid, u8 enablemask) | |
| 0x000300C0 | DisableRegisterBits8 (u8 devid, u8 regid, u8 disablemask) | |
| 0x00040102 | MultiSetRegisterBits16 (u16 regid, u16 regdata, u16 mask, devcount, u8* devidlistptr) | |
| 0x000500C0 | WriteRegister8 (u8 devid, u8 regid, u8 regdata) | |
| 0x00060080 | WriteCommand8 (u8 devid, u8 cmdid) | |
| 0x0007.... | WriteRegister16 (u8 devid, u16 regid, u16 regdata) | |
| 0x000800C2 | MultiWriteRegister16 (u16 regid, u16 regdata, devcount, u8* devidlistptr) | |
| 0x00090080 | u8 ReadRegister8 (u8 devid, u8 regid) | |
| 0x000A.... | u16 ReadRegister16 (u8 devid, u16 regid) | |
| 0x000B00C2 | WriteRegisterBuffer8 (u8 devid, u8 regid, buffersize, (buffersize << 14) | 0x402, u8* bufferptr) | |
| 0x000C00C2 | WriteRegisterBuffer16 (u8 devid, u16 regid, buffersize, (buffersize << 15) | 0x402, u16* bufferptr) | |
| 0x000D00C0 | ReadRegisterBuffer8 (u8 devid, u8 regid, buffersize, +0x180: (buffersize << 14) | 2, +0x184: u8 bufferptr) | |
| 0x000E00C2 | WriteRegisterBuffer8_again? (u8 devid, u8 regid, buffersize, u8* bufferptr) | |
| 0x000F00C0 | ||
| 0x0010.... | ||
| 0x001100C2 | WriteRegisterBuffer(u8 devid, u16 regid, buffersize, u8 *buff) | |
| 0x001200C2 | ReadRegisterBuffer(u8 devid, u16 regid, buffersize, u8 *buff) | |
| 0x00130040 | 8.0.0-18 | 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 | 8.0.0-18 | WriteDeviceRaw(u8 devid, u32 buffersize, (buffersize << 14) | 0x402, bufferptr) This is basically the write-data version of command 0x00150080. |
| 0x00150080 | 8.0.0-18 | ReadDeviceRaw(u8 devid, u32 buffersize, +0x180: (buffersize << 14) | 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 0x00140082 and 0x00150080 are used by NFC module.