Hyundai: PCM and non-PCM longitudinal are not resuming with button press

[sunnyhaibin]

Describe the bug

PCM longitudinal (stock system)

• Unable to use the PAUSE/RESUME button to re-engage openpilot due to a breaking change introduced in Hyundai: always publish cruise and main buttons opendbc#1326, which affects many Hyundai/Kia/Genesis models using stock longitudinal control
• For some newer model years of Hyundai/Kia/Genesis cars using stock longitudinal control, the CANCEL button acts as a PAUSE/RESUME based on PCM state.
• Button events for Hyundai are now published continuously, leading to unintended disengagement on CANCEL button release.
• Interim fix PR (needs to be reopened): Hyundai: Stock longitudinal: Prevent disengagement on cancel button release #34060

Non-PCM longitudinal (openpilot)

• Unable to use the RESUME/+ button to resume with the previous set speed
• Route with issue: 2bbe12792a30f61f/00000597--9b3c91c5dd

Which car does this affect?

2022 Hyundai Elantra, 2023 Genesis G70, 2019 Ioniq Plug-in Hybrid, 2023 Hyundai Kona EV

Provide a route where the issue occurs

Stock longitudinal issue: 2bbe12792a30f61f/0000059a--ff54a3ac71
openpilot longitudinal issue: 2bbe12792a30f61f/0000059b--63039b3804

openpilot version

master

Additional info

No response

[sunnyhaibin]

Bug with PCM longitudinal unable to resume with PAUSE/RESUME seems to only affect some models.

2024 Hyundai Sonata (not affected)

• carState/cruiseState/enabled goes rising edge after the PAUSE/RESUME button is released

2023 Genesis G70 (affected)

• carState/cruiseState/enabled goes rising edge before the PAUSE/RESUME button is released

[sunnyhaibin]

Routes with bugs mentioned in this issue:

• Stock longitudinal issue: 2bbe12792a30f61f/0000059a--ff54a3ac71
• openpilot longitudinal issue: 2bbe12792a30f61f/0000059b--63039b3804