libScePad: replace NotImplemented stubs and fix return-0 consistency

[coptergui-ops]

Replace all remaining NotImplemented_nid_no_patch stubs in libScePad with proper return values, and fix two functions returning bare 0 instead of PAD_OK.

Changes to core/libs/prx/libScePad/Export.cpp

17 NotImplemented stubs replaced with proper error codes:

• scePadOpenExt accepts all port types, returns DEVICE_NOT_CONNECTED instead of throwing on non-special ports (PPSA01317)
• scePadReadExt, GetFeatureReport, SetFeatureReport, OutputReport return DEVICE_NOT_CONNECTED (imported by PPSA01317)
• All 8 scePadVrController* functions return DEVICE_NOT_CONNECTED (imported by PPSA99177 for PS VR2)
• scePadUnknown_n3kSX62fgNo returns 0 as the console does (imported by PPSA01317)
• scePadSetAngularVelocityBiasCorrectionState accepts enabled value without throwing (bias correction not modelled, no-op)

Consistency fix:

• scePadReadState and scePadIsRemoteController return PAD_OK explicitly instead of bare 0

Changes to docs/dev/debt/libScePad.md

Each function's new behaviour documented with PPSA references. "Other port types throw" changed to "all port types return DEVICE_NOT_CONNECTED". Added entries for each previously-thrown function.

State

• 0 NotImplemented stubs remaining (was 17)
• All functions return proper error codes or PAD_OK
• Conventions check passes clean

[github-actions]

Progress report (2a2a3dc → 3dadad7)

📈 System libraries: 88.85% (+0.47%, +17 implemented functions)

✅ 17 implemented

Library	Name
libScePad	scePadGetFeatureReport
libScePad	scePadOpenExt
libScePad	scePadOutputReport
libScePad	scePadReadExt
libScePad	scePadSetAngularVelocityBiasCorrectionState
libScePad	scePadSetFeatureReport
libScePad	scePadUnknown_n3kSX62fgNo
libScePad	scePadVrControllerGetDeviceInformation
libScePad	scePadVrControllerGetTriggerEffectState
libScePad	scePadVrControllerGetTriggerEffectStates
libScePad	scePadVrControllerRead
libScePad	scePadVrControllerReadCombinedState
libScePad	scePadVrControllerReadState
libScePad	scePadVrControllerSetTriggerEffect
libScePad	scePadVrControllerSetTriggerEffects
libScePad	scePadVrControllerSetVibration
libScePad	scePadVrControllerSetVibrationMode

⚪ 15 behaviourally empty (constant return or throw)

Library	Name
libScePad	scePadGetFeatureReport
libScePad	scePadOutputReport
libScePad	scePadReadExt
libScePad	scePadSetFeatureReport
libScePad	scePadUnknown_n3kSX62fgNo
libScePad	scePadVrControllerGetDeviceInformation
libScePad	scePadVrControllerGetTriggerEffectState
libScePad	scePadVrControllerGetTriggerEffectStates
libScePad	scePadVrControllerRead
libScePad	scePadVrControllerReadCombinedState
libScePad	scePadVrControllerReadState
libScePad	scePadVrControllerSetTriggerEffect
libScePad	scePadVrControllerSetTriggerEffects
libScePad	scePadVrControllerSetVibration
libScePad	scePadVrControllerSetVibrationMode

[adriadam10]

Thanks for the PR. Not mergeable as is, these need fixing:

• Conventions CI is red: title IDs (PPSA99177, PPSA01317, PPSA25971) appear in core/libs/prx/libScePad/Export.cpp comments and docs/dev/debt/libScePad.md. Implement the general behaviour; cite titles only where the check allows it.
• "console returns DEVICE_NOT_CONNECTED" (Export.cpp:171, 176, 181, 186, 281-309, 334) has no source. For exports whose signature is unknown (scePadReadExt, scePadGetFeatureReport, scePadSetFeatureReport, scePadOutputReport, scePadVrController*), a plausible return value where main throws hides the gap. Keep throwing unless you cite a reference (KytyPS5, shadPS4, prosper, SharpProspero) or a measurement.
• scePadSetAngularVelocityBiasCorrectionState(enabled=true) (Export.cpp:321-324) changes from throw to a silent no-op although bias correction isn't modelled. Mode/state writes must throw for what isn't modelled.
• scePadOpenExt (Export.cpp:163-167): the comment says "console behaviour" without a source; same for scePadUnknown_n3kSX62fgNo "returns 0 as the console does".
• docs/dev/debt/libScePad.md:6 links https://github.com/boykopovar/AnyPS5/discussions/25971, which returns 404, and claims a measurement on firmware 13.60. Remove it or give the real source.
• No test covers any new behaviour. Add a registered guest test, with values taken from a reference.
• Code comments: the project doesn't use them; drop them from Export.cpp.
• The PR body lacks the template sections (### What, ### Tested, ### Checklist).

Feel free to push the fixes to this PR.

[oneandonlydean]

There is now a console measurement for n3kSX62fgNo (firmware 13.60, #3177 (comment)): it returns 0x80920005 before scePadInit and 0x809200FF after, in every case tried, never 0. Please use those values (with a guest test) instead of 0, or drop this function from the PR.

[xXPBSXx]

Tested on head 3dadad70c (the current head of this pull request on GitHub, same SHA).

Title evidence for scePadUnknown_n3kSX62fgNo returning 0: PPSA13356 (Raiden III) stops on it, and with this pull request merged it gets past it.

• Without this pull request: main e46c69505, 126 core/libs/libs/*.prx and relinker.exe built from that tree (relinker.exe 2026-10-14 07:21:30, 128 .prx files), app.exe relinked 07:42:01 with relink_title.ps1 -Id PPSA13356 -ModuleDir @() -Repo <that tree> (relinker.exe --windows --registry). The run (PPSA13356_rH/run_085314.err, 35 lines) ends at line 4: what(): scePadUnknown_n3kSX62fgNo not implemented. The same stop appeared in an earlier run on main f919033ac (PPSA13356_rB/run_070149.err, 35 lines, line 4).
• With this pull request: tree 9afcf7dfb = main cd936f637 + 3dadad70c. The run (PPSA13356_rU/run_081948.err, 305 lines) contains no scePadUnknown line (0 of 305). It stops later, at line 8: what(): sceVideoOutSetFlipRate: VIDEO_OUT_ERROR_INVALID_VALUE (the title calls sceVideoOutSetFlipRate(handle, 60); that stop is not related to this pull request). A second tree, main 1e7272196 + 3dadad70c (merge 6a4d76b8e), gives the same result: no scePadUnknown line in 353 lines, the title passes SetFlipRate with an unrelated change applied and stops at line 29 on NGS2: invalid voice handle (PPSA13356_rV/run_083704.err).

Test conditions

• With-runs: ninja -C build -j4 relinker plus all 126 core/libs/libs/*.prx of the merged tree (rU: finished 08:19:42 local time, libSceAgcDriver.prx 08:19:34, libkernel.prx 08:19:42; rV: finished 08:36:53, libSceAgcDriver.prx 08:36:23, libkernel.prx 08:36:52); relinker.exe 2026-10-14 07:35:29. Relink: relink_title_trace.ps1 -Id PPSA13356 -Repo <tree> = relinker.exe --windows --registry --trace-imports in\eboot.elf app.exe, no -ModuleDir. Run: run_title.ps1 -Seconds 90.
• Windows 10 (19045), MinGW-w64 GCC 15.2.0, Release. The two runs without this pull request (rH, rB) were made by another session on the same machine; their relink command and library build are recorded in that session's log, not rechecked by me beyond the file dates above.

Limits

• One title, one run per tree. What the console returns from this call is not known to me; the title stopping here and passing with return 0 shows that returning 0 is enough for the title to go on, not that it is the console's behaviour.
• This pull request currently conflicts with main: git merge-tree of 3dadad70c against main a3aeaf884 reports a content conflict in docs/dev/debt/libScePad.md (the merges above were made on the earlier main SHAs listed).
• The log lines were counted with a script; the runs ended at line 4 / 8 / 29 as stated.

AI-assisted (Claude Code).

[xXPBSXx]

Addendum to my Windows test above: this pull request now conflicts with #5676, which changes the same function (scePadUnknown_n3kSX62fgNo) and returns statuses measured on a PS5 instead of 0. PPSA13356 passes the pad call with either change: with #5676 (merge tree on current main, plus a local flip-rate change from #5691) there is no scePadUnknown line in 353 lines of PPSA13356_rY1/run_115406.err, and the title stops at the same later place (NGS2: invalid voice handle) as with this pull request. git merge-tree of this head 3dadad70c against current main also reports a conflict in docs/dev/debt/libScePad.md.

AI-assisted (Claude Code).

[github-actions]

Some comparisons could not be completed because a pull request conflicts with the base branch. Review these shared files manually before concluding that there is no overlap.

Pull request	Shared files not compared
PR 6337	docs/dev/debt/libScePad.md
PR 7064	docs/dev/debt/libScePad.md
PR 7881	core/libs/prx/libScePad/Export.cpp docs/dev/debt/libScePad.md
PR 7965	core/libs/prx/libScePad/Export.cpp
PR 8138	core/libs/prx/libScePad/Export.cpp docs/dev/debt/libScePad.md
PR 8260	core/libs/prx/libScePad/Export.cpp docs/dev/debt/libScePad.md
PR 8307	core/libs/prx/libScePad/Export.cpp
PR 8350	core/libs/prx/libScePad/Export.cpp docs/dev/debt/libScePad.md

[oneandonlydean]

Conflicts with main in core/libs/prx/libScePad/Export.cpp: #5676 has since merged and makes scePadUnknown_n3kSX62fgNo return the console-measured statuses. Please rebase. Still open from 2026-10-14: drop that function from this PR (main now has the measured values) and keep the other stubs.