[PATCH i-g-t RFC 00/13] tests/chamelium: Integrate the chamelium v3

[Louis Chauvet]

Hi all,

This patch series introduces a new wrapper for the Chameleon v3 board, a
testing tool used primarily for Chromebooks, but also by community members
to increase test coverage of graphic devices. The Chameleon v3 is an
upgrade from its predecessor, with the ability to emulate 2 HDMI and 2
DisplayPort devices, including MST devices.

The board can read and analyze any stream on the DisplayPort and HDMI
cables, and even take captures, making it an ideal tool for testing
hardware, driver, and user space behavior in specific situations, such as
screen hotplugging and multiple MST screens. However, the changes between
the v2 and v3, such as the addition of MST support and the removal of CRC
for screen captures, would require significant modifications to the
existing tests and wrappers.

To avoid this complexity and ensure that the Chameleon v3 is fully
supported and the v2 is not broken, I wrote a new wrapper with
simplicity and ease of use in mind. The Chameleon v3 wrapper should only
manage the Chameleon itself, without the need for DRM displays, EDID
caching/modifications, or state machines. This approach will make it
easier for developers to use the Chameleon v3 and contribute to its
development.

In this RFC, I did not merged the common code between the v2 and v3, but
it is planned for the next version.

Before I continue working on this series, I want to make sure that it
is up to the standard of the project and that I am heading in the right
direction.

This series can be splitted in three parts:
 - PATCH 1-3: extracting the v2 wrapper and tests in its own directory
 - PATCH 4-6: Introducing the RPC wrapper
 - PATCH 6-12: Introduce few tests on EDID and MST

Signed-off-by: Louis Chauvet <louis.chauvet at bootlin.com>

---
Louis Chauvet (13):
      tests/chamelium: Extract chamelium v2 tests into its own directory
      lib/chamelium: Extract chamelium v2 wrapper into its own directory
      lib/chamelium: Change build options to split chamelium v2 and v3
      lib/chamelium: Introduce the foundation for the chamelium v3 library
      lib/chamelium: Implement all RPC calls for the chamelium v3
      lib/chamelium: Introduce a simple chamelium v3 test
      tests/chamelium: Introduce basic edid test
      lib/monitor_edids: Introduce helpers to get EDID from a monitor EDID
      tests/chamelium: Introduce 4k stress edid
      tests/chamelium: Introduce non-4k stress edid
      tests/chamelium: Introduce test resolution
      tests/chamelium: Introduce test sleep
      tests/chamelium: Add MST test

 docs/testplan/meson.build                       |    4 +-
 lib/{ => chamelium/v2}/igt_chamelium.c          |    2 +-
 lib/{ => chamelium/v2}/igt_chamelium.h          |    0
 lib/{ => chamelium/v2}/igt_chamelium_stream.c   |    2 +-
 lib/{ => chamelium/v2}/igt_chamelium_stream.h   |    0
 lib/chamelium/v3/igt_chamelium.c                | 1026 +++++++++++++++++++++++
 lib/chamelium/v3/igt_chamelium.h                |  120 +++
 lib/igt.h                                       |    6 +-
 lib/igt_kms.c                                   |   14 +-
 lib/meson.build                                 |   16 +-
 lib/monitor_edids/monitor_edids_helper.c        |   61 +-
 lib/monitor_edids/monitor_edids_helper.h        |    6 +-
 lib/tests/meson.build                           |    8 +-
 meson.build                                     |   45 +-
 meson_options.txt                               |    8 +-
 tests/chamelium/{ => v2}/kms_chamelium_audio.c  |    0
 tests/chamelium/{ => v2}/kms_chamelium_color.c  |    0
 tests/chamelium/{ => v2}/kms_chamelium_edid.c   |    2 +-
 tests/chamelium/{ => v2}/kms_chamelium_frames.c |    0
 tests/chamelium/{ => v2}/kms_chamelium_helper.c |    0
 tests/chamelium/{ => v2}/kms_chamelium_helper.h |    0
 tests/chamelium/{ => v2}/kms_chamelium_hpd.c    |    0
 tests/chamelium/v3/kms_chamelium_v3_basic.c     |   30 +
 tests/chamelium/v3/kms_chamelium_v3_edid.c      |  419 +++++++++
 tests/kms_color_helper.h                        |    2 +-
 tests/kms_feature_discovery.c                   |    6 +-
 tests/kms_tiled_display.c                       |    6 +-
 tests/meson.build                               |   61 +-
 28 files changed, 1785 insertions(+), 59 deletions(-)
---
base-commit: cea4eb0dae57dae8c21782c64ad8174c39d1df38
change-id: 20240522-dev-remove-static-ports-9382ffbbf146

Best regards,
-- 
Louis Chauvet <louis.chauvet at bootlin.com>