Adding a stepper driver implementation for allegro a4979
microstepping programmable stepper motor driver.
The implemenation was tested using the drv8424/api testsuite.
Signed-off-by: Verena Schweinstetter <verena.schweinstetter@zeiss.com>
Adds a timing source api which is used by the step-dir stepper common code.
This allows the reusable common code to configure different timing sources,
since the initial delayable work implementation was inacurate for higher
maximum velocities.
Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
Adds a step direction binding that can be used with any stepper that
implements said control interface to cut down on boilerplate code.
Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
Add shell commands to enable/disable, move, set velocity, configure
micro-step resolution, and display stepper motor status. Includes an
`info` command to output all relevant data with graceful handling of
unsupported features.
Signed-off-by: Jilay Pandya <jilay.pandya@outlook.com>
Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
Verena Schweinstetter
Fabian Blatz
Sarah Renkhoff
Jilay Pandya