Editing Skateboard Peripheral

The Tony Hawk: RIDE \ SHRED skateboard is a peripheral that launched in 2009 for ps3,xbox 360 and wii 

i have collected some info that i would like to preserve. this info was mainly used in this PR to RPCS3: https://github.com/RPCS3/rpcs3/pull/14619  

The game looks for data in cellPadGetData and cellPadGetInfo2.  

For the game to detect a controller as a skate board the data in cellPadGetInfo2. needs to be: 

now_connect =  1 (is the controller connected) 

system_info = 0 (??? never seen it not be 0) 

port_status = 1 

port_setting = 6 (set by the game by calling (cellPadSetPortSetting(port_num, 6) )  

device_capabillity = 7 (describes that it has motion etc) 

device_type = 0 (no idea)  

cellPadGetData is a function that is called when a game wants to get input from a controller. it ruturnes an pointer to a padData structure.  

typedef struct CellPadData { 

    int32_t ''len'';

    uint16_t ''button''[CELL_PAD_MAX_CODES (=64)];

}


inside the button array we have 64 bytes. ill explain them all in the context of the skateboard
{| class="wikitable"
|'''Offset (words)'''
|'''Content'''
|'''Definition'''
|-
|0
|0x0000
| -
|-
|1
|bits 15 – 8: Reserved
bits 7 – 4: 0x7 fixed
bits 3 – 0: ''len'' /2

| -
|-
|2
|Digital button statuses (definitions)
0: release, 1: push
  bits 8 – 15: Reserved
  bit7: Left button (CELL_PAD_CTRL_LEFT)
  bit6: Down button (CELL_PAD_CTRL_DOWN)
  bit5: Right button (CELL_PAD_CTRL_RIGHT)
  bit4: Up button (CELL_PAD_CTRL_UP)
  bit3: START button (CELL_PAD_CTRL_START)
  bit2: R3 button (CELL_PAD_CTRL_R3)
  bit1: L3 button (CELL_PAD_CTRL_L3)
  bit0: SELECT button (CELL_PAD_CTRL_SELECT)
|CELL_PAD_BTN_OFFSET_DIGITAL1
|-
|3
|Digital button statuses (definitions)
0: release, 1: push
  bits 8 – 15: Reserved
  bit7: Square button (CELL_PAD_CTRL_SQUARE)
  bit6: Cross button (CELL_PAD_CTRL_CROSS)
  bit5: Circle button (CELL_PAD_CTRL_CIRCLE)
  bit4: Triangle button (CELL_PAD_CTRL_TRIANGLE)
  bit3: R1 button (CELL_PAD_CTRL_R1)
  bit2: L1 button (CELL_PAD_CTRL_L1)
  bit1: R2 button (CELL_PAD_CTRL_R2)
  bit0: L2 button (CELL_PAD_CTRL_L2)
|CELL_PAD_BTN_OFFSET_DIGITAL2
|-
|4
|Right stick (X direction) Left 0x0000 – Right 0x00FF
|CELL_PAD_BTN_OFFSET_ANALOG_RIGHT_X
skateboard will always report 128
|-
|5
|Right stick (Y direction) Up 0x0000 – Down 0x00FF
|CELL_PAD_BTN_OFFSET_ANALOG_RIGHT_Y
|-
|6
|Left stick (X direction) Left 0x0000 Right 0x00FF
|CELL_PAD_BTN_OFFSET_ANALOG_LEFT_X
skateboard will always report 128
|-
|7
|Left stick (Y direction) Up 0x0000 – Down 0x00FF
|CELL_PAD_BTN_OFFSET_ANALOG_LEFT_Y
|-
|8
|Pressure-sensitive information (Right) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_RIGHT
|-
|9
|Pressure-sensitive information (Left) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_LEFT
|-
|10
|Pressure-sensitive information (Up) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_UP
|-
|11
|Pressure-sensitive information (Down) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_DOWN
|-
|12
|Pressure-sensitive information (Triangle) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_TRIANGLE
IR sensor on the nose of the board
expected values: 0-64, IRL values 7-55
|-
|13
|Pressure-sensitive information (Circle) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_CIRCLE
IR sensor on the tail of the board
expected values: 0-64, IRL values 7-55
|-
|14
|Pressure-sensitive information (Cross) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_CROSS
IR sensor on the left of the board
expected values: 0-64, IRL values 7-55
|-
|15
|Pressure-sensitive information (Square) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_SQUARE
IR sensor on the right of the board
expected values: 0-64, IRL values 7-55
|-
|16
|Pressure-sensitive information (L1) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_L1
over tilt detection. normal value reported is 6-9 
if board is tilted too much it will be 10-55
has to be 6-9 in main menu to be recognized as a skateboard
|-
|17
|Pressure-sensitive information (R1) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_R1
over tilt detection. normal value reported is 6-9 
if board is tilted too much it will be 10-55
has to be 6-9 in main menu to be recognized as a skateboard
|-
|18
|Pressure-sensitive information (L2) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_L2
|-
|19
|Pressure-sensitive information (R2) * 
Valid range: 0x0000 - 0x00FF
|CELL_PAD_BTN_OFFSET_PRESS_R2
|-
|20
|Sensor information (X axis) **
Valid range: 0x0000 - 0x03FF
|CELL_PAD_BTN_OFFSET_SENSOR_X 
|-
|21
|Sensor information (Y axis) **
Valid range: 0x0000 - 0x03FF
|CELL_PAD_BTN_OFFSET_SENSOR_Y
|-
|22
|Sensor information (Z axis) **
Valid range: 0x0000 - 0x03FF
|CELL_PAD_BTN_OFFSET_SENSOR_Z
|-
|23
|Sensor information (angular rate) **
Valid range: 0x0000 - 0x03FF
|CELL_PAD_BTN_OFFSET_SENSOR_G
|-
|24 – 63
|Reserved
| -
|} 

in summary. for the game to recognize a controller as a skateboard it has to have this: 

bytes 4 and 6 have to be 128 

bytes 16 and 17 have to be more than 5 and less than 55  

that will pass the is skateboard connected check  

now you (sadly) have info on this plastic piece of shit 

it was fun to understand it and now rpcs3 picks it up :)  

heres a bonus image of a prototype board: