Hi Roderick,
On Tue, Dec 27, 2022 at 08:17:15AM -0800, Roderick Colenbrander wrote:
Thanks for sharing your patch. Others have encountered similar issues.
This is the case when the calibration coefficients are incorrect.
These are hard programmed into devices from the factory. It are
typically clone devices, which don't implement all DS4 functionality
properly.
I cannot ensure it's an original DS4 but it really seems so.
The board is a JDM-055 with a MT3610N, but instead of a BST-BMI270 (as
reported on a reverse-engineered schematic[1]) it has a "N339(CCF)".
I can't find any datasheet or specification of that chip.
I'll provide few images of the board for reference[2].
Do you think it's a clone?
Can you try printing all the variables (gyro_speed_plus,..
acc_z_minus) for your device as decimal numbers from the
get_calibration_data function?
Sure, here is the output:
gyro_pitch_plus=0 gyro_pitch_minus=0 gyro_yaw_plus=0 gyro_yaw_minus=0
gyro_roll_plus=0 gyro_roll_minus=0 gyro_speed_plus=0
gyro_speed_minus=0 acc_x_plus=0 acc_x_minus=0 acc_y_plus=0
acc_y_minus=0 acc_z_plus=0 acc_z_minus=0
Probably it has communication issues with the IMU.
This one is a joypad with multiple issues I'm trying to solve one by one.
By the way, do you know if there are tools for linux to test all the
functionalities of the DS4? I would be interested to read IMU values,
test audio, vibration and touchpad.
Thanks,
Alain
[1] https://www.acidmods.com/RDC/DS4/JDM-055/1-982-707-31%20small/JDM-055__(31)_SOME_VALUES.pdf
[2] https://imgur.com/a/tckVWKR
