tinyusb.git/src/portable/chipidea/ci_hs/dcd_ci_hs.c, branch merge_os

dcd(ci_hs): rework bus reset handling and bound the register waits

2026-08-18T15:07:49Z

A bus reset was detected only from the port change that ends it, which is late: the manual asks the DCD to clear the endpoint semaphores, cancel every prime and free the dTDs while the reset is still being driven. Enable the reset interrupt and do all of that there, in the manual's order (IMXRT1060RM 42.5.6.2.1, p.2394), including the two steps that were missing - confirming the port is still being reset, and freeing the dTDs. A failed check means the cleanup arrived late and the controller may be in an undefined state, so the manual's remedy is carried out rather than noted: a controller reset, followed by the full re-initialisation it then requires, since the reset detaches the device. The port change that ends the reset is left with what the manual gives it, the negotiated speed, which the new BUS_RESET_END event carries. A port change is classified by the interrupt that preceded it: a suspend raises no port change of its own, the resume that ends it does. Every unbounded register spin is now bounded. They waited on bits the hardware clears within a frame, but each could hang an interrupt handler outright on a controller that had stopped responding. The endpoint flush follows all three steps of IMXRT1060RM 42.5.6.6.5 (p.2413), repeating a flush the controller refuses while a packet is in progress - previously reported as success. EP0 setup handling is hardened alongside: the payload is copied out of the queue head through the volatile qualifier before ENDPTSETUPSTAT is cleared, since that clear releases the setup lockout and a back-to-back setup can overwrite the buffer immediately after, and C orders volatile accesses only against each other, so a plain memcpy may legally be sunk past the store. There is deliberately no unplug detection. IMXRT1060RM 42.7.31 (p.2470) states a zero Current Connect Status means the device "did not attach successfully or was forcibly disconnected by the software writing a zero to the Run bit ... It does not state the device being disconnected or suspended", so a cable pull raises no port change at all; VBUS via OTGSC is the manual's disconnect indicator and is board dependent. Verified on mimxrt1064_evk: 30 forced bus resets each re-enumerating at high speed with no descriptor errors, plus repeated full usbtest batteries at 30/30 across the series.

portable/chipidea: name SBUSCFG in ci_hs_regs_t, unify AHB burst hook

2026-08-17T05:12:08Z

Replace the duplicated per-MCU dispatch in dcd_init/hcd_init and the two helper flavors (USB_Type access on iMX RT, raw offset 0x90 on LPC18/43) with one SBUSCFG register field plus a per-header CI_HS_SET_AHB_BURST() hook, compiled only where defined. The LPC USB0-only policy is now visible at the macro definition.

portable/chipidea: configure i.MX RT AHB bursts

2026-07-27T12:58:13Z

portable/chipidea: configure LPC USB0 AHB bursts

2026-07-27T12:39:02Z

dcd(ci_hs): stale overlay fix; run usbtest on lpcxpresso43s67

2026-07-14T08:23:07Z

- dcd_edpt_stall flushes the primed buffer (ENDPTFLUSH), but the aborted transfer's dQH overlay can be left ACTIVE with mid-transfer state; the next prime after clear-halt then resumes the stale overlay instead of loading the fresh qtd, so post-halt IN reads return mid-buffer data (usbtest case 13 'buf[32] = 56 (not 0)', with case 18 failing downstream of the same corruption in the full battery). qhd_start_xfer now clears overlay.active alongside overlay.halted before linking the new qtd. - test/hil(hfp): drop lpcxpresso43s67's device/usbtest skip - the historical first-case wedge no longer reproduces on this branch, and with the overlay fix the board runs 30/30 on its Fresco xHCI host (previously 28/30 with deterministic case 13/18 failures). mimxrt1064_evk (imxrt dcache path) 30/30 regression-clean. - docs(hil skill): document the external hifiphile rig - pool test/hil/hfp.json, SSH-reachable from htpc/ci with no outbound SSH, exercised by the CI hil-tinyusb (hfp.json) job; never run HIL against it during development unless the user explicitly asks. Co-Authored-By: Claude Fable 5 Claude-Session: https://claude.ai/code/session_017TQZrFfU3K4Y198aLsUpBC

license: use SPDX identifiers for src/ headers (#3749)

2026-07-02T14:55:45Z

* license: use SPDX identifiers for src/ headers Replace the full ~20-line MIT license boilerplate on every src/ file with a two-line SPDX tag (SPDX-FileCopyrightText + SPDX-License-Identifier), following the REUSE convention used by CircuitPython and the Linux kernel. Removes ~3500 lines of duplicated boilerplate.

Fix ep_ctrl_mask() corrupting opposite direction's ENDPTCTRL bits

2026-03-07T20:53:01Z

ci_hs: add deinit support

2026-03-05T15:09:39Z

Signed-off-by: Zixun LI

Merge remote-tracking branch 'tinyusb/master' into support-nxp-rw612

2025-12-16T19:47:37Z

Signed-off-by: HiFiPhile

support hpmicro chips

2025-12-16T05:08:30Z

Signed-off-by: Zhihong Chen