[PATCH v3 0/1] Resubmission of patch previously submitted Sept 2020

[James Fitzsimons]

Hi Chris,

I've just submitted v4 with those licences updated. I hope I've done it
correctly.

Cheers,
James

On Tue, 23 Feb 2021 at 10:23, Chris Johns <chrisj at rtems.org> wrote:

> Hi James,
>
> Thanks for the patch. It is close. Could I ask if all the source files
> from you
> please be updated to the latest template with the 2-clause BSD license? It
> will
> say us having to include them in the sweep when we get to that task. I see
> a mix
> in the files provided.
>
> Thanks
> Chris
>
> On 21/2/21 8:29 pm, James Fitzsimons wrote:
> > This patch adds driver support for the eQEP (enhanced Quadrature Encoder
> Pulse)
> > module within each of the PWMSS units in the AM335x. The eQEP module is
> used for
> > hardware decoding of rotrary encoders, motor encoders etc.
> >
> > Because the PWMSS module includes several components some of the
> existing code in
> > the pwm driver could be reused. To make this common I have added a
> pwmss.h header
> > and moved some of the pwmss specific defines and enum to this file. The
> pwmss.c
> > file contains a refactored (simplified) version of the clock
> configuration
> > method that was previously in the pwm.c file. The
> pwmss_module_clk_config will
> > now be shared by both the pwm and eqep drivers (and eventually the ecap
> driver if
> > that is ever added).
> >
> > The approach taken with the qep.h header was to move some of the qep
> specific
> > defines from the am335x.h header to this file. They are specific to the
> qep
> > function and would likely never be referenced by anything other than
> this driver.
> > Doing this keeps these definitions with the driver code and reduces
> clutter in
> > am335x.h header.
> >
> > The driver supports two primary modes of operation. A polled mode (which
> is the
> > default mode), and an interrupt event driven mode.
> >
> > This patch includes the following revisions after feedback from Chris
> Johns:
> >  - improved documentation
> >  - addition of void* user argument to interrupt callback
> >  - addition of position value arg to interrupt callback
> >
> > James Fitzsimons (1):
> >   Adding QEP driver support to BeagleBoneBlack BSP
> >
> >  bsps/arm/beagle/headers.am              |   2 +
> >  bsps/arm/beagle/include/bsp/bbb-pwm.h   |  11 -
> >  bsps/arm/beagle/include/bsp/pwmss.h     |  54 +++
> >  bsps/arm/beagle/include/bsp/qep.h       | 382 ++++++++++++++++++++
> >  bsps/arm/beagle/pwm/pwm.c               |  60 +---
> >  bsps/arm/beagle/pwmss/pwmss.c           |  64 ++++
> >  bsps/arm/beagle/qep/qep.c               | 445 ++++++++++++++++++++++++
> >  c/src/lib/libbsp/arm/beagle/Makefile.am |   6 +
> >  spec/build/bsps/arm/beagle/obj.yml      |   5 +-
> >  9 files changed, 959 insertions(+), 70 deletions(-)
> >  create mode 100644 bsps/arm/beagle/include/bsp/pwmss.h
> >  create mode 100644 bsps/arm/beagle/include/bsp/qep.h
> >  create mode 100644 bsps/arm/beagle/pwmss/pwmss.c
> >  create mode 100644 bsps/arm/beagle/qep/qep.c
> >
>
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