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2026-07-17dcd_lpc17_40: mask USB IRQ around non-reentrant SIE and realization sequenceshathach
The SIE command protocol (CmdCode + CCEMPTY/CDFULL handshake), the slave-mode Ctrl/RxData/TxData window, the EpIntEn read-modify-writes, and set_ep_size's ReEp/EP_RLZED handshake are all shared between thread-mode API calls and dcd_int_handler, and none are reentrant: an ISR preempting a thread-mode sequence consumes its handshake flags or, in set_ep_size's case, a bus reset's DevIntClr = 0xFFFFFFFF eats the EP_RLZED flag the spin waits on, hanging it forever. Guard them by masking only the USB IRQ (nestable, ISR-safe; CMSIS NVIC_DisableIRQ already ends with DSB+ISB). control_xact keeps the mask across its in_isr=true event push, since osal_none skips queue locking for in_isr. Hardening, not a fix for an observed failure: the ea4088 usbtest 30/30 + HIL 14/14 results were reproduced with and without it. The windows are a few instructions wide and most exposed on RTOS builds where class drivers queue transfers from tasks concurrent with the USB IRQ.
2026-07-17dcd_lpc17_40: fix stale EP0 out_received, add isochronous supporthathach
EP0 control-OUT fix (usbtest 14/21, errno 110/-74): usbd queues the status-stage OUT ZLP of every control read with buffer=NULL, so the ISR's `if (out_buffer)` check missed it and marked the arriving ZLP as out_received instead. The stale flag poisoned the next control-OUT with data: its first chunk "completed" instantly from an empty EP0 buffer and the host's real DATA NAKed forever. Track queued transfers with an explicit out_queued flag and void half-finished control state on a new SETUP. Isochronous support (UM10562 12.15.6): 5-word DMA descriptors with per-packet size memory, buflen/present_count in packets, one packet per FRAME (no DMARSet/EpIntEn involvement), completion at EOT for both directions. Details that matter: - the iso machinery (5th DD word + packet-size memory) is compiled only when an iso-capable class is enabled (CFG_TUD_AUDIO/VIDEO/VENDOR), so non-iso builds pay nothing: _dcd stays 648 B vs 1032 B with iso - ISR dispatch keys on the hardware's fixed ep-number/type map (ep_id_is_iso), never on dd fields that thread mode rebuilds - iso OUT honors Packet_valid (bit 16) and prefills the hardware writeback slots with 0, so a missed frame counts as 0 bytes instead of reading back stale buffer contents as data - packet count is validated (tu_div_ceil <= ISO_MAX_PACKETS) before the DD is touched, so an oversized transfer is refused without leaving a serviceable half-built descriptor armed for the frame engine - dcd_edpt_iso_alloc and iso_activate both enforce the fixed iso endpoint numbers (3/6/9/12); classes ignore alloc's return value, so activate must not trust it Un-skip LPC40XX in the usbtest example; tier 4 now enumerates and passes iso cases 15/16/22/23. cdc_msc_throughput and printer_to_cdc had bulk on iso-only EP3 (SET_CONFIGURATION failed with -32); add the LPC17/40 EPNUM block (bulk on EP2/EP5) like other fixed-EP examples. Verified on ea4088_quickstart: usbtest tier-4 battery 30/30 repeatedly and the full device HIL suite 14/14 (incl. audio_test iso).
2026-07-17vendor: deactivate de-selected altsetting's isochronous endpointshathach
vendord_set_alt() aborted bulk/interrupt endpoints of the outgoing altsetting (stall/clear-stall) but only dropped the iso endpoints' tracking: an armed iso transfer stayed live in the dcd with its usbd claim held and no tracked handle to stop it, and its completion fired into an endpoint the class no longer recognizes. Reachable through the usbtest example's alt0 (bulk) <-> alt1 (iso) SET_INTERFACE switching. Track each selected iso endpoint's descriptor (points into the app's static descriptor set) and deactivate on de-selection: with the iso-alloc API re-activation is the abort/scrub primitive (resets ep_status, aborts the stale transfer); without it usbd_edpt_close does, and the next selection re-opens. Iso cannot be stalled like bulk/interrupt, hence the separate path. Build-verified: usbtest for stm32f072disco, ra4m1_ek, raspberry_pi_pico (iso-alloc) and ch32v307v_r1_1v0 (close API).
2026-07-17rusb2: restore speed-conditional hwfifo stride maskhathach
FS-forced builds on the HS module are not a supported configuration, so the 32-bit access path does not need to exist in full-speed builds: CFG_TUSB_FIFO_HWFIFO_DATA_STRIDE returns to (2 | (TUD_OPT_HIGH_SPEED ? 4 : 0)). Saves 28 bytes of text on FS-only parts (measured on ra4m1_ek cdc_msc); high-speed builds keep both widths for the dual-module (FS+HS ports) case. Build-verified: ra4m1_ek and ra6m5_ek cdc_msc.
2026-07-15dwc2: fix EP0 OUT dcache invalidate range; run usbtest on espressif s3/p4 ↵hathach
and mimxrt1015 edpt_schedule_packets() advanced xfer->buffer past each armed EP0 chunk, so the OUT-complete handler invalidated the cache at the ADVANCED pointer: one line past the received data. The CPU then read stale cached bytes instead of the DMA'd packet, and the misplaced invalidate discarded a dirty line of whatever variable follows the buffer - random neighbor corruption on every control-OUT data stage. Found by usbtest ctrl_out (cases 14/21) on espressif_p4_function_ev with DMA enabled, the first DWC2 target combining buffer DMA with a data cache: usbd control state wedged after the first control write (every later request stalled), and one build layout panicked in the usbd memcpy with a wild pointer. Rework the EP0 chunk bookkeeping so xfer->buffer always points at the un-consumed position: the arm no longer advances it; instead the EP0 re-arm paths advance past each completed (full) chunk, invalidating it first on the OUT side. The final OUT completion invalidates exactly the received bytes of its last chunk, taken from DOEPDMA ("incremented on every AHB transaction", databook 7.1.83 - the same semantics the SETUP path relies on) before dma_setup_prepare() re-targets it. EP0 chunking state (ep0_pending) is now also dropped on bus reset and on a new SETUP, so a stale latched completion can no longer re-arm EP0 DMA from dead state. No behavior change for targets without dcache. While root-causing, the FIFO layout was cross-checked against the DWC2 databook/programming guide v4.20a: the existing GDFIFOCFG programming (EPInfoBaseAddr = otg_dfifo_depth - 2*ep_count, one SPRAM word per endpoint direction for buffer DMA) is conformant and needs no change; the P4 HS instance's reset GDFIFOCFG (0x03800400) merely reflects a scatter/gather-sized EP_LOC_CNT of 128 that buffer DMA does not need. With the fix in place, enable the usbtest battery on the espressif fleet: tools/build.py allowlists device/usbtest (a plain IDF component like board_test/video_capture) and both espressif boards' only-lists gain device/usbtest. Also re-enable device/usbtest on mimxrt1015_evk: its skip predated the dcd_ci_hs stale-ACTIVE-overlay fix (already on this branch), which cured the battery that previously killed the uPD720201 host controller twice (2026-07-11 ROM fw, 2026-07-13 case 27 on fw 2.0.2.6); rig-validated 30/30 three consecutive runs. Validated on rig (all 30/30): espressif_p4_function_ev(-DMA) (was 22/30 under DMA), espressif_s3_devkitm(-DMA), stm32f723disco(-DMA), mimxrt1015_evk; p4/s3 slave-mode unaffected (DMA-only code path); compile-checked stm32h743nucleo +TUD DMA, stm32f407disco, stm32l476disco (device ports currently on the dead hub). Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_017TQZrFfU3K4Y198aLsUpBC
2026-07-14dcd(ci_hs): stale overlay fix; run usbtest on lpcxpresso43s67hathach
- 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 <[email protected]> Claude-Session: https://claude.ai/code/session_017TQZrFfU3K4Y198aLsUpBC
2026-07-14Merge remote-tracking branch 'origin/master' into usbtesthathach
# Conflicts: # .claude/skills/hil/SKILL.md # test/hil/hil_test.py
2026-07-13rusb2: EP0 OUT reliability, HS UTMI PHY power-up, FS-only build supporthathach
- EP0 OUT: park a back-to-back data-stage packet the DCP accepted before PID could go NAK and deliver it into the next armed chunk; flow-control the single-buffer control pipe between chunks (usbtest ctrl_out corruption); discard a packet parked while an OUT pipe was halted so BOT reset recovery's fresh CBW read can't receive stale WRITE data - HS UTMI PHY power-up per the FSP sequence, shared by dcd/hcd: CLKSEL programmed from the board XTAL (EK-RA8M1 runs 20 MHz; the 24 MHz reset default never locks) while DIRPD holds the PHY down, then timed release - hw/bsp(ra8m1_ek): fix U60CK divider macro - BSP_CFG_U60CK_DIV used the generic USB_CLOCK_DIV_8 encoding (7), which USB60CKDIVCR rejects, leaving the USBHS link domain at 480 MHz; the USB60-specific BSP_CLOCKS_USB60_CLOCK_DIV_8 (4) sticks and yields the required 60 MHz from PLL1P - support FS-only builds on the high-speed port: gate SYSCFG.HSE on TUD_OPT_HIGH_SPEED (RHPORT_DEVICE_SPEED=OPT_MODE_FULL_SPEED was a silent no-op) and always compile both hwfifo access widths - the FIFO width belongs to the module, not the link speed (FS builds corrupted odd-length tails: 16-bit access against MBW-32) - iso activate: reset stale pipe bookkeeping so a BRDY firing before the class re-arms can't replay a pre-SET_INTERFACE transfer; write PIPEBUF after PIPESEL selects the pipe (PIPESEL-windowed register) - clear-halt: re-assert BUF on a still-armed OUT pipe (usbtest case 29) - bound the D0FIFO ready spin so an undrained double-buffered IN pipe can't freeze the stack with the IRQ masked - usbtest example: cap interrupt mps at 64 on RUSB2 high speed (pipes 6-9 have a fixed 64-byte buffer, RA6M5 UM 29.1) Verified: usbtest 30/30 on ra6m5_ek (HS), ra4m1_ek (FS) and ra8m1_ek (FS-forced build on the HS port). Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-12dcd(ch32_usbfs): reset stale transfer state in dcd_edpt_iso_activatehathach
The no-op activate left a transfer armed before SET_INTERFACE valid in data.xfer, letting the ISR complete it against the old buffer. Drop the descriptor and NAK the endpoint (mirrors the nrf5x fix). Verified: usbtest 30/30 on ch32v103r, nanoch32v203, ch582m_evt. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-12dcd(ip3511): clear Active directly on stall/iso-activate, keep EPSKIP for reopenhathach
EPSKIP raises a transfer completion, so using it on the stall path let the class re-arm the endpoint and Active+Stall never actually stalled (usbtest case 13); write bare Active=0 instead, and retire skipped transfers on endpoint reopen where the completion is wanted. Verified: usbtest 30/30 on lpcxpresso11u37. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-10nrf5x: fix hfclk_running() for nrfx v2.0.0Mikey Sklar
nrf_clock_is_running() was added in nrfx 2.1.0 (MDK 8.30.2), but the version autodetect puts 2.0.0 (MDK 8.29.0) in the v2 bucket, so hfclk_running() fails to compile on that nrfx. Route v2 through nrf_clock_hf_is_running(), which all of 2.x provides. Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
2026-07-09audio: drop stale EP-busy note in audiod_set_interfacehathach
Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(ch32-usbfs): isochronous supporthathach
Double-buffered iso, EP3 1023-byte packets on V20x/V30x (10-bit R16_UEP3_T_LEN), CH583 and V103 enabled at 64 B. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(ch32-usbhs): re-queue the pending OUT read on clear-halthathach
Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(musb): flush TX FIFO on halt; don't load a disarmed pipehathach
Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(fsdev): don't disarm an armed endpoint on clear-halt toggle resethathach
Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(rp2040): re-issue in-flight transfer on clear-halt toggle resethathach
Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(nrf5x): errata 199 DMA workaround + iso alloc/activatehathach
USBD drops tasks during EasyDMA without the 0x40027C1C latch (anomaly 199); matches the nrfx reference driver. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(ip3511): iso alloc/activate; retire armed buffers via EPSKIPhathach
Clear Active before Stall so a queued endpoint actually halts (UM11126 41.8.1); use the sanctioned EPSKIP+wait sequence for stall/reopen/activate. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(rusb2): iso alloc/activate; bound the FIFO-ready waithathach
An unpolled full iso-IN pipe keeps FRDY low forever and froze the stack with IRQs masked; bound the spin and abort the FIFO access. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd(samd): implement iso alloc/activatehathach
Reserve the bank SIZE bucket once, re-enable per altsetting, and scrub the bank-ready state so a stale armed bank cannot send before the class re-arms. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09dcd: route samd/rusb2/ip3511/nrf5x through iso alloc/activatehathach
Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09usbd: forward vendor EP0 requests; clear ep state on iso activatehathach
Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-09class/vendor: add interrupt/iso endpoint pairs and alt-setting supporthathach
Non-buffered per-type source/sink endpoints (bulk/int/iso) with manual RX arming across altsettings. Co-Authored-By: Claude Fable 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
2026-07-05bound rndis data packet offset in handle_incoming_packetJavid Khan
Signed-off-by: Javid Khan <[email protected]>
2026-07-05Merge pull request #3738 from sauloverissimo/fix/midi2-fb-directionZixun LI
feat(midi2): derive function blocks from the GTB descriptor
2026-07-05ensure gtb is validHiFiPhile
Signed-off-by: HiFiPhile <[email protected]>
2026-07-05Merge pull request #3753 from Old-Ding/codex/usbd-driver-count-warningZixun LI
Fix usbd empty builtin driver warning
2026-07-05Fix usbh empty builtin driver warningHiFiPhile
Signed-off-by: HiFiPhile <[email protected]>
2026-07-05Fix usbd empty builtin driver warning v2HiFiPhile
Signed-off-by: HiFiPhile <[email protected]>
2026-07-05Merge pull request #3754 from Old-Ding/codex/usbtmc-status-byte-bufferZixun LI
Fix USBTMC status byte interrupt buffer
2026-07-05Merge pull request #3741 from dxbjavid/ncm-ndp-length-boundZixun LI
bound ndp16 wLength against received ntb in recv_validate_datagram
2026-07-05Fix USBTMC status byte notification bufferaineoae86-sys
Queue the USB488 READ_STATUS_BYTE interrupt notification through tud_usbtmc_transmit_notification_data so it uses the class notification endpoint buffer for the asynchronous transfer. Fixes #2928 Generated-by: OpenAI Codex Signed-off-by: aineoae86-sys <[email protected]>
2026-07-05fix sizeof(nth16_t) typoHiFiPhile
Signed-off-by: HiFiPhile <[email protected]>
2026-07-05Fix USBTMC notification endpoint claimaineoae86-sys
Use usbd_edpt_claim() before queuing USBTMC notification data so the interrupt endpoint is reserved through the normal endpoint ownership path. Release the claim if the notification payload cannot be copied before the transfer is queued. Fixes #2735 Generated-by: OpenAI Codex Signed-off-by: aineoae86-sys <[email protected]>
2026-07-05Fix usbd empty builtin driver warningaineoae86-sys
Generated-by: OpenAI Codex Signed-off-by: aineoae86-sys <[email protected]>
2026-07-03Merge pull request #3748 from mikeysklar/fix-max3421-oscok-hangHa Thach
max3421: prevent USB host hang at startup
2026-07-03Merge pull request #3660 from andrewleech/cdch-on-enum-idx-guardZixun LI
cdc_host: fix undeclared 'idx' when only LINE_CONTROL_ON_ENUM is defined
2026-07-02license: use SPDX identifiers for src/ headers (#3749)Ha Thach
* 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.
2026-07-01hcd(max3421): improve CHIPRES reset logic and refine oscillator ↵hathach
stabilization timing
2026-07-01max3421: prevent USB host hang at startupMikey Sklar
On some boards the MAX3421E doesn't report its oscillator ready after a soft reset (CHIPRES), so hcd_init() waits on USBIRQ_OSCOK forever and the host hangs at startup before any USB device can be used. Bound the wait so it proceeds after a timeout; it is a no-op where OSCOK arrives normally. Needed on the Adafruit Feather ESP32 V2 (classic ESP32) + USB Host FeatherWing, which otherwise hangs on essentially every cold boot. Relates to adafruit/circuitpython#10053.
2026-06-29Bump version to 0.21.0; rework changelog, contributors, and docshathach
Release: - Bump version to 0.21.0 and regenerate tusb_option.h, library.json, repository.yml, sonar-project.properties, boards.rst, dependencies.rst - Add 0.21.0 release notes and split the changelog into per-release files under docs/info/changelog/ (date out of title, driver/class groups as sub-headings, DCD & HCD section after Device/Host stacks) Contributors: - Credit each release's PR authors in a Contributors section - Drop the curated contributors page; add MAINTAINERS.rst Docs: - Update Code of Conduct to Contributor Covenant 3.0 (keep it in the repo, remove it from the built docs) - Sidebar: add a home entry, rename the group to "Documentation", move Changelog into it, add a GitHub Sponsor button, merge external links, rename FAQ; hide the inline toctree on the landing page - Add the make-release skill and update the AGENTS.md release process Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
2026-06-28feat(midi2): derive function blocks from the GTB descriptorSaulo Veríssimo
Function Block Info (direction, group span, name) is derived from the GTB descriptor as the single source of truth, so a device can expose multiple Group Terminal Blocks with independent directions. Adds Function Block Name notifications (tud_midi2_fb_name_cb) and an opt-in callback to answer UMP Stream messages from the application (tud_midi2_stream_msg_cb). Ref #3571
2026-06-27bound ndp16 wLength against received ntb in recv_validate_datagramJavid Khan
2026-06-26Merge branch 'hathach:master' into fix/dwc2-hcd-ls-hfir代码人生
2026-06-25hcd/dwc2: update wording on hfirHiFiPhile
Signed-off-by: HiFiPhile <[email protected]>
2026-06-25Merge pull request #3616 from michaelajax/fix-stm32-usbcZixun LI
typec/stm32: fix UCPD sink bugs affecting compatibility with newer PD sources
2026-06-25fix(dwc2_hcd): correct HFIR for Low-Speed devices via internal FS PHYZhang, Zhenjiang
When a Low-Speed device is connected through the internal FS PHY, the effective PHY clock is 6MHz (HCFG_FSLS_PHYCLK_SEL_6MHZ), but phy_clock was incorrectly left at 48. This caused HFIR to be calculated as 47999 (~8ms SOF interval) instead of the correct 5999 (1ms SOF interval), breaking periodic endpoint scheduling. Fixes: LS mouse only receiving first HID report on OTG_HS + FS PHY
2026-06-24skip cable-plug trafficHiFiPhile
Signed-off-by: HiFiPhile <[email protected]>
2026-06-24apply review suggestionsHiFiPhile
Signed-off-by: HiFiPhile <[email protected]>