Re: [PATCH 03/15] staging: comedi: ni_routing: Add NI signal routing info

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On 08/10/17 07:44, Spencer E Olson wrote:
On Thu, 2016-11-10 at 18:16 +0000, Ian Abbott wrote:
On 10/11/16 17:54, Greg Kroah-Hartman wrote:
On Thu, Nov 10, 2016 at 05:08:36PM +0000, Ian Abbott wrote:
On 12/10/16 12:05, Spencer E. Olson wrote:
See README for a thorough discussion of this content.

Adds two different collections of CSV files that:
1) summarize the various register values for creating routes
    for a particular family of NI hardware devices;
2) summarize all possible (direct) routes that a particular device can
    make--in this case, one file per device (this data is currently only
    known to be found by examining a screenshot of the "Available Routes"
    tab of NI MAX control panel, which is only found on Windows
    installations of the NI driver).

The collection and maintenance of this information is somewhat tedious and
requires frequent re-examination and comparison of NI-MAX and/or the NI-MHDDK
documentation (register programming information) and NI-MHDDK examples.
These CSV files are constructed so-as to allow near direct comparison
to NI-MAX and NI-MHDDK.  As such, these serve to ease the task of
maintaining this knowledge and more quickly enables addition of new NI
devices.

Signed-off-by: Spencer E. Olson <olsonse@xxxxxxxxx>

*** PLEASE FIND ACTUAL PATCH AT:
http://www.umich.edu/~olsonse/patches/comedi-devglobal-v1/0003-staging-comedi-ni_routing-Add-NI-signal-routing-info.patch

(This patch included some lines that were too long for email)
---
  drivers/staging/comedi/drivers/ni_routing/README   | 110 +++++++++++++++++++++
  .../ni_routing/ni_device_routes/PCI-6070E.csv      |  40 ++++++++
  .../ni_routing/ni_device_routes/PCI-6220.csv       |  46 +++++++++
  .../ni_routing/ni_device_routes/PCI-6221.csv       |  50 ++++++++++
  .../ni_routing/ni_device_routes/PCI-6251.csv       |  51 ++++++++++
  .../ni_routing/ni_device_routes/PCI-6254.csv       |  47 +++++++++
  .../ni_routing/ni_device_routes/PCI-6259.csv       |  51 ++++++++++
  .../ni_routing/ni_device_routes/PCI-6534.csv       |  29 ++++++
  .../ni_routing/ni_device_routes/PCI-6602.csv       |  78 +++++++++++++++
  .../ni_routing/ni_device_routes/PCI-6713.csv       |  32 ++++++
  .../ni_routing/ni_device_routes/PCI-6723.csv       |  32 ++++++
  .../ni_routing/ni_device_routes/PCI-6733.csv       |  34 +++++++
  .../ni_routing/ni_device_routes/PXI-6030E.csv      |  39 ++++++++
  .../ni_routing/ni_device_routes/PXI-6224.csv       |  46 +++++++++
  .../ni_routing/ni_device_routes/PXI-6225.csv       |  49 +++++++++
  .../ni_routing/ni_device_routes/PXI-6251.csv       |  50 ++++++++++
  .../ni_routing/ni_device_routes/PXI-6733.csv       |  35 +++++++
  .../ni_routing/ni_device_routes/PXIe-6251.csv      |  52 ++++++++++
  .../drivers/ni_routing/ni_route_values/ni_660x.csv | 100 +++++++++++++++++++
  .../ni_routing/ni_route_values/ni_eseries.csv      |  78 +++++++++++++++
  .../ni_routing/ni_route_values/ni_mseries.csv      |  90 +++++++++++++++++
  21 files changed, 1139 insertions(+)
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/README
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6070E.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6220.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6221.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6251.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6254.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6259.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6534.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6602.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6713.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6723.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PCI-6733.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PXI-6030E.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PXI-6224.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PXI-6225.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PXI-6251.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PXI-6733.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_device_routes/PXIe-6251.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_route_values/ni_660x.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_route_values/ni_eseries.csv
  create mode 100644 drivers/staging/comedi/drivers/ni_routing/ni_route_values/ni_mseries.csv

<... SNIP ...>


While it's nice to have the source data for the generated C files, I'm a bit
worried that any future patches to these .csv files will also be
incompatible with sending by email.  I'm not sure of the best way to deal
with this.

They should work in email, it's just a text file and patch handles that
fine.


Its the line lengths I'm worried about, i.e. the reason this patch
couldn't be sent by email!


I apologize for the severity of this delay, but I am finally getting
back to this patch set.  I've rebased and am going through the various
comments to implement suggested feedback.  Please bear with me by
re-reading your email above and help me understand if there is a
resolution to the issue that Ian brought up:  Namely, is there going to
be a major problem with accepting this patch with its .csv files that
naturally have very long lines?

Yes, I think it's still a problem.

The reason why I picked using .csv files is stated in the original
commit message: (1) enables easier long-term maintenance, (2) is an
ascii format for textual comparisions, (3) allows direct comparison to
hardware documentation.

Perhaps an intermediate format could be used that: (1) is email and patch friendly, (2) is well-supported by scripting languages, and (3) can be transliterated to and from your CSV format easily enough. I was thinking that JSON might be a suitable candidate for that.

--
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti@xxxxxxxxx> )=-
-=(                          Web: http://www.mev.co.uk/  )=-
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