WiiU Gamepad Technical Documentation

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== UIC EEPROM structure ======

The UIC's EEPROM occupies address range 0x1000..0x17FF. (TODO: maybe it occupies more?)

The first 256 bytes are used internally, while the rest is used for user data storage.

https://bitbucket.org/memahaxx/libdrc/src/master/src/device-config.cpp for more info.

^ Address ^ Length ^ Description ^
| 0x1010  | 2      | Firmware install status -- set to A5 5A when a firmware is installed |
| 0x1012  | 1      | ?? |
| 0x1013  | 1      | LED status when no firmware installed -- 1=red 2=amber 0/x=none |
| --      | --     | -- |
| 0x1101  | 32     | Wifi SSID (WiiUxxxx...) |
| 0x1121  | 1      | Wifi SSID length |
| 0x1122  | 1      | Wifi auth type
  0 = open
  1 = shared key (?) 
|
| 0x1123  | 1      | Wifi auth mode
  0x00 = disabled
  0x01 = none
  0x04 = WPA
  0x80 = WPA2 
|
| 0x1124  | 1      | Wifi encryption
  0 = none
  1 = WEP
  2 = TKIP
  3 = AES
|
| 0x1125  | 64     | Wifi passphrase |
| 0x1165  | 1      | Wifi passphrase length |
| 0x1166  | 2      | Wifi country code |
| 0x116B  | 2      | CRC16 over 0x1101..0x116A |
| 0x116D  | 16     | WoWL key |
| 0x117F  | 6      | WoWL MAC |
| 0x1187  | 1      | WoWL setting (?) |
| 0x118A  | 1      | Last wifi channel |
| --      | --     | -- |
| 0x11FD  | 1      | Layout of page 1 (should be 3) |
| 0x11FE  | 2      | CRC16 over 0x11FD |
| --      | --     | -- |
| 0x1200  | 1      | Board info 1 |
| 0x1201  | 2      | CRC16 over 0x1200 |
| 0x1203  | 1      | Region info 1 |
| 0x1204  | 2      | CRC16 over 0x1203 |
| 0x1206  | 1      | Board config 1 |
| 0x1207  | 2      | CRC16 over 0x1206 |
| 0x121A  | 2      | Volume calibration 1 |
| 0x121C  | 2      | CRC16 over 0x121A..0x121B |
| 0x121E  | 12     | Accelerometer calibration 2 |
| 0x122A  | 2      | CRC16 over 0x121E..0x1229 |
| 0x122C  | 19     | Gyroscope calibration 1 |
| 0x123F  | 2      | CRC16 over 0x122C..0x123E |
| 0x1253  | 16     | Touchscreen calibration 2 |
| 0x1263  | 2      | CRC16 over 0x1253..0x1262 |
| 0x1265  | 4      | Service version 2 |
| 0x1269  | 2      | CRC16 over 0x1265..0x1268 |
| --      | --     | -- |
| 0x1280  | 1      | Board info 2 |
| 0x1281  | 2      | CRC16 over 0x1280 |
| 0x1283  | 1      | Region info 2 |
| 0x1284  | 2      | CRC16 over 0x1283 |
| 0x1286  | 1      | Board config 2 |
| 0x1287  | 2      | CRC16 over 0x1286 |
| 0x129A  | 2      | Volume calibration 2 |
| 0x129C  | 2      | CRC16 over 0x129A..0x129B |
| 0x129E  | 12     | Accelerometer calibration 3 |
| 0x12AA  | 2      | CRC16 over 0x129E..0x12A9 |
| 0x12AC  | 19     | Gyroscope calibration 1 |
| 0x12BF  | 2      | CRC16 over 0x12AC..0x12BE |
| 0x12D3  | 16     | Touchscreen calibration 3 |
| 0x12E3  | 2      | CRC16 over 0x12D3..0x12E2 |
| 0x12E5  | 4      | Service version 3 |
| 0x12E9  | 2      | CRC16 over 0x12E5..0x12E8 |
| --      | --     | -- |
| 0x12FD  | 1      | Layout of page 2 (should be 5) |
| 0x12FE  | 2      | CRC16 over 0x12FD |
| --      | --     | -- |
| 0x1300  | 1      | Language |
| 0x1301  | 2      | CRC16 over 0x1300 |
| 0x1303  | 1      | Opening screen index |
| 0x1304  | 2      | CRC16 over 0x1303 |
| 0x1306  | 1      | Development mode setting |
| 0x1307  | 2      | CRC16 over 0x1306 |
| 0x1313  | 12     | Accelerometer calibration 1 |
| 0x131F  | 2      | CRC16 over 0x1313..0x131E |
| 0x1344  | 16     | Touchscreen calibration 1 |
| 0x1354  | 2      | CRC16 over 0x1344..0x1353 |
| 0x1356  | 1      | [[FLASH layout#Language bank|Language bank]] index |
| 0x1357  | 2      | CRC16 over 0x1356 |
| 0x1359  | 1      | Language version (together with CRC16 bytes) |
| 0x135C  | 4      | Remote control data version |
| 0x1360  | 2      | CRC16 over 0x135C |
| 0x1362  | 4      | Service version 1 |
| 0x1366  | 2      | CRC16 over 0x1362..0x1365 |
| 0x1368  | 4      | Opening screen 1 version |
| 0x136C  | 2      | CRC16 over 0x1368..0x136B |
| 0x136E  | 4      | Opening screen 2 version |
| 0x1372  | 2      | CRC16 over 0x136E..0x1371 |
| 0x1374  | 1      | Initial boot flag (?) |
| 0x1375  | 2      | CRC16 over 0x1374 |
| 0x1377  | 13     | LCD brightness levels |
| 0x1384  | 2      | CRC16 over 0x1377..0x1383 |
| 0x1386  | 1      | LCD brightness setting |
| 0x1387  | 2      | CRC16 over 0x1386 |
| 0x1389  | 5      | Remote control ID 1 |
| 0x138E  | 5      | Remote control ID 2 |
| 0x1393  | 2      | CRC16 over 0x1389..0x1392 |
| 0x1396  | 1      | Airwave setting |
| 0x1397  | 2      | CRC16 over 0x1396 |
| --      | --     | -- |
| 0x13FD  | 1      | Layout of page 3 (should be 4) |
| 0x13FE  | 2      | CRC16 over 0x13FD |
| --      | --     | -- |
| 0x1400  | 256    | ??? |
| 0x1500  | 2      | CRC16 over 0x1400-0x14FF |
| --      | --     | -- |
| 0x1580  | 256    | ??? |
| 0x1680  | 2      | CRC16 over 0x1580-0x167F |

Data is stored in little-endian order.

When multiple regions exist for a given information (for example, board info), the first region with a correct CRC16 is selected.


===== Board info =====

Bit 0-3 of the board info value are the main version, while bit 4-7 are the sub version.

Main version:
  * 0 = DK1
  * 1 = EP_DK2
  * 2 = DP1
  * 3 = DP2
  * 4 = DK3
  * 5 = DK4
  * 6 = DP3
  * 7 = DK5
  * 8 = DP4
  * 9 = DKMP
  * 10 = DP5
  * 11 = MASS
  * 12 = DKMP2
  * 13 = DRC_I

Sub version:
  * 0 = DK1_EP_DK2
  * 1 = DP1_DK3
  * 2 = DK4
  * 3 = DP3
  * 4 = DK5
  * 5 = DP4
  * 6 = DKMP
  * 7 = DP5
  * 8 = MASS
  * 9 = DKMP2
  * 10 = DRC_I


===== Region info =====

  * 0 = Japan
  * 1 = North America
  * 2 = Europe
  * 3 = China
  * 4 = South Korea
  * 5 = Taiwan
  * 6 = Australia


===== Board config =====

Value is 0x15 for retail boards.

If bit0-1 are any value other than 1, the gamepad will enter service mode upon boot.


===== Language =====

(0-3 = America, 4-11 = Europe)

  * 0 = English 
  * 1 = French 
  * 2 = Spanish 
  * 3 = Portuguese 
  * 4 = English 
  * 5 = French 
  * 6 = Spanish
  * 7 = Portuguese
  * 8 = Dutch
  * 9 = Italian
  * 10 = German
  * 11 = Russian
  * 12 = Japanese
  * 13 = Chinese (simplified)
  * 14 = Korean
  * 15 = Chinese (traditional)


===== Volume calibration =====

^ Offset ^ Length ^ Description ^
| 0x00   | 1      | Minimum volume |
| 0x01   | 1      | Maximum volume |

The minimum and maximum values are used to cap the reading from the volume slider within an acceptable range.

TODO: detail how that reading is converted to the final volume setting passed to the audio amplifier


===== Gyroscope calibration =====

^ Offset ^ Length ^ Description ^
| 0x00   | 3      | Zero X |
| 0x03   | 3      | Zero Y |
| 0x06   | 3      | Zero Z |
| 0x09   | 3      | Rotation X |
| 0x0C   | 3      | Rotation Y |
| 0x0F   | 3      | Rotation Z |
| 0x12   | 1      | Speed |


===== Accelerometer calibration =====

^ Offset ^ Length ^ Description ^
| 0x00   | 2      | 0G X |
| 0x02   | 2      | 0G Y |
| 0x04   | 2      | 0G Z |
| 0x06   | 2      | 1G X |
| 0x08   | 2      | 1G Y |
| 0x0A   | 2      | 1G Z |


===== Touchscreen calibration =====

^ Offset ^ Length ^ Description ^
| 0x00   | 2      | Point 1 screen X |
| 0x02   | 2      | Point 1 screen Y |
| 0x04   | 2      | Point 2 screen X |
| 0x06   | 2      | Point 2 screen Y |
| 0x08   | 2      | Point 1 raw X |
| 0x0A   | 2      | Point 1 raw Y |
| 0x0C   | 2      | Point 2 raw X |
| 0x0E   | 2      | Point 2 raw Y |

Raw coordinates are 12-bit TSC readings, while screen coordinates are their corresponding values in pixels.

Observed screen coordinates are: 53,30 802,451


===== LCD brightness levels =====

^ Offset ^ Length ^ Description ^
| 0x00   | 1      | Level 0 brightness level (setting A) |
| 0x01   | 1      | Level 0 frequency (setting B) |
| 0x02   | 1      | Level 1 brightness level |
| 0x03   | 1      | Level 1 frequency |
| 0x04   | 1      | Level 2 brightness level |
| 0x05   | 1      | Level 2 frequency |
| 0x06   | 1      | Level 3 brightness level |
| 0x07   | 1      | Level 3 frequency |
| 0x08   | 1      | Level 4 brightness level |
| 0x09   | 1      | Level 4 frequency |
| 0x0A   | 1      | Level 5 brightness level |
| 0x0B   | 1      | Level 5 frequency |
| 0x0C   | 1      | Threshold level |

This table maps 6 predefined brightness levels to their adequate LCD parameters. See [[LCD#Setting_the_brightness|the LCD page]] for information as to how these settings are used.