rockbox/firmware/usbstack
Paul Sauro 9aa2d7fe94 usb: accept replacement SETUP after an abandoned control transfer
A host can replace an unfinished control transfer with a new SETUP. ARC
and DesignWare flush EP0 without reporting completion callbacks, leaving
the core waiting for a data/status packet that will never arrive.

Explicitly notify the core after both directions and stale completion
bits have been cancelled. Return an abandoned data/status stage to READY.
If a queued or running handler still owns the request and data buffer,
keep that ownership and suppress its response; dispatch only the latest
replacement when it returns. A driver-owned SET_ADDRESS can also cancel
a deferred request without passing its SETUP to the core.

Do not overwrite an arbitrary busy state in usb_core_setup_received().
ARC cancellation is a prerequisite in the preceding patch; DesignWare
cancels both EP0 directions before notifying and rearming reception.

Change-Id: Ia8e0a68fe47ccab952168da24a2f76e311ca2b15
2026-09-27 09:19:39 -04:00
..
iap usb iap: correct sample rate descriptors and packet cadence 2026-09-25 13:49:30 -04:00
usb_audio.c chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_audio.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_audio_def.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_charging_only.c chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_charging_only.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_class_driver.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_core.c usb: accept replacement SETUP after an abandoned control transfer 2026-09-27 09:19:39 -04:00
usb_hid.c chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_hid.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_hid_def.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_hid_usage_tables.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_iap.c usb iap: correct sample rate descriptors and packet cadence 2026-09-25 13:49:30 -04:00
usb_iap.h usb: hold class_driver instance in each driver 2026-05-03 15:18:51 -04:00
usb_serial.c usb: acknowledge SET_LINE_CODING in the serial driver 2026-08-10 15:30:53 -04:00
usb_serial.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00
usb_storage.c usb storage: defer commands until exclusive storage handover completes 2026-09-25 07:49:36 -04:00
usb_storage.h chore: Get rid of *all* vestigal CVS '$Id:$' tags 2026-06-01 16:01:18 -04:00