linux-kernel - [PATCH v2 0/7] XP-PEN Deco Pro S support (for-5.20/uclogic)

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Date:   Sun, 17 Jul 2022 16:43:26 +0200
From:   José Expósito <jose.exposito89@...il.com>
To:     jikos@...nel.org
Cc:     benjamin.tissoires@...hat.com, spbnick@...il.com,
        j.witteveen@...il.com, stefanberzl@...il.com,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        kunit-dev@...glegroups.com,
        José Expósito <jose.exposito89@...il.com>
Subject: [PATCH v2 0/7] XP-PEN Deco Pro S support (for-5.20/uclogic)

Hello everyone,

This patchset adds support for the XP-PEN Deco Pro S.

Like the Deco L (for-5.20/uclogic) this tablet is a UGEE v2 tablet.

The first patch is not related to this tablet. It fixes some naming
conventions on the KUnit tests.

Patches 2 and 3 just move code to functions and add more unit tests.

Patch 4 parses the tablet string descriptor to get its frame type. The
values discovered so far are: only buttons, buttons + dial or
buttons + dial + mouse.

Patches 5 and 6 add the descriptors for the new frame types.

The last patch uses all of this to add support for the tablet.

I don't have access to the tablet. Credit for testing the patches and
providing the required recordings goes to Jouke Witteveen.
This fixes an issue reported in libinput:
https://gitlab.freedesktop.org/libinput/libinput/-/issues/738

Best wishes,
José Expósito

v1 -> v2:

 - First patch acked-by Daniel Latypov

José Expósito (7):
  HID: uclogic: KUnit best practices and naming conventions
  HID: uclogic: Refactor UGEE v2 string descriptor parsing
  HID: uclogic: Refactor UGEE v2 frame initialization
  HID: uclogic: Parse the UGEE v2 frame type
  HID: uclogic: Add support for UGEE v2 dial frames
  HID: uclogic: Add support for UGEE v2 mouse frames
  HID: uclogic: Add support for XP-PEN Deco Pro S

 drivers/hid/Kconfig                   |   2 +-
 drivers/hid/Makefile                  |   4 +-
 drivers/hid/hid-ids.h                 |   1 +
 drivers/hid/hid-uclogic-core.c        |   2 +
 drivers/hid/hid-uclogic-params-test.c | 192 ++++++++++++++++++++++
 drivers/hid/hid-uclogic-params.c      | 225 ++++++++++++++++++++++----
 drivers/hid/hid-uclogic-params.h      |  10 ++
 drivers/hid/hid-uclogic-rdesc-test.c  |  22 +--
 drivers/hid/hid-uclogic-rdesc.c       |  74 +++++++++
 drivers/hid/hid-uclogic-rdesc.h       |   8 +
 10 files changed, 494 insertions(+), 46 deletions(-)
 create mode 100644 drivers/hid/hid-uclogic-params-test.c

base-commit: 0cb1fc0988e32bda84c2b7218e0c761af1430baf
-- 
2.25.1