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Level 2 marks the stack's task-side entry points (tud_task/tuh_task inner
loop, usbd_edpt_xfer, control transfers); level 3 adds the class drivers
(cdc, msc) and the rp2040 dcd/hcd as the reference portable layer. All
call sites compile away below their level.
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tusb_int_handler() brackets the whole USB interrupt with SystemView ISR
enter/exit records, honouring its in_isr argument so a handler deferred to
task context is not recorded as an interrupt. usbd.h/usbh.h expose the
level-1 hooks the handler needs.
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agent/fix-dwc2-host-fifo-allocation
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A disconnect can close endpoint zero after an enumeration control stage completes but before USBH submits the next stage or request. HCD submission then legitimately returns false; treating that result as an invariant violation asserts during rapid replug and can leave enumeration unfinished.
Complete an in-progress control request as failed when its DATA or status stage cannot be submitted. Propagate submission failures from every asynchronous enumeration continuation and finish enumeration through the normal failure cleanup path. This keeps controller teardown races out of assertions without fabricating a successful transfer.
Validated by interrupting enumeration during rapid STM32U5A5 replug tests with DWC2 DMA and slave modes.
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bound endpoint number in tu_bind_driver_to_ep_itf
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tu_bind_driver_to_ep_itf() now returns false when ep_num >= CFG_TUH_ENDPOINT_MAX, but the host caller ignores that result and continues enumeration. Configurations such as host/bare_api set the limit to 8, while valid USB devices may use endpoints 8–15. A recognized class can therefore continue and later index ep_status[epnum] or ep2drv[epnum] out of bounds. Wrap this call in TU_ASSERT(...), as the device path already does, so parsing fails immediately.
Signed-off-by: HiFiPHile <[email protected]>
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vendor_host.c/.h implemented a CFG_TUH_VENDOR class driver that no example, board
or test ever enabled: usbh's driver table entry was compiled out everywhere, and
the six tusb_config.h files that mentioned the macro all set it to 0. Maintainer
call - dead code, not a shrinking of supported classes.
Removes the sources, the usbh driver-table entry, the CFG_TUH_VENDOR default in
tusb_option.h, the tusb.h include, both build-system source lists, the rp2040
family.cmake entry and the IAR project template rows.
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Signed-off-by: HiFiPhile <[email protected]>
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* 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.
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Signed-off-by: HiFiPhile <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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tuh_rhport_init() calls osal_spin_init(&_usbh_spin), which under OPT_OS_PICO
claims a hardware spinlock via critical_section_init(). There was no
osal_spin_deinit(), so tuh_deinit() never released it: every host init/deinit
cycle leaked one spinlock. RP2350 has a small spinlock pool, so a few usb_host
rebuilds exhaust it and hw_claim_unused_from_range() panics (the long-standing
"crashes on the 4th rebuild" bug).
Add osal_spin_deinit() to all OSAL backends (critical_section_deinit for pico;
no-op for none/freertos) and call it in tuh_deinit(). Verified 20/20
deinit+rebuild cycles on RP2350-Zero and Waveshare RP2350-USB-A (previously
panicked on the 4th).
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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- Added a pending FIFO queue for asynchronous control transfers when the active slot is busy.
- Introduced `control_xfer_dispatch_pending` to handle queued transfers on slot availability.
- Improved synchronization for blocking and non-blocking transfer modes, preventing deadlocks in RTOS.
- Refactored and renamed related functions for clarity and consistency.
- Enhanced error handling and callback invocation for failed or stale transfers.
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Add native USB-MIDI 2.0 Host class driver to TinyUSB. Implements
reactive architecture: enumerate, detect MIDI 2.0 capability, inform
application via callbacks.
Driver features:
- Parse both Alt Setting 0 (MIDI 1.0) and Alt Setting 1 (UMP)
- Detect bcdMSC version from descriptor
- Auto-select highest protocol (Alt 1 preferred if available)
- UMP read/write via endpoint streams
- Proper Audio Control interface skip (loop-based, following
midi_host.c pattern)
- Endpoint open with tuh_edpt_open/tu_edpt_stream_open/clear
- usbh_driver_set_config_complete for USBH state machine
- Handle Audio Control itf_num in set_config gracefully
- 5 weak callback stubs (descriptor, mount, unmount, rx, tx)
Build system:
- Register midih2_* in usbh.c driver table
- Add midi2_host.h include to tusb.h
- Add CFG_TUH_MIDI2_LOG_LEVEL to tusb_option.h
All changes guarded by #if CFG_TUH_MIDI2 (default 0). Zero impact on
existing drivers and examples.
Tested: Waveshare RP2350-USB-A (Host) receiving UMP from Raspberry Pi
Pico (Device) via PIO-USB, board-to-board
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endpoint state handling methods and accesses
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for clarity and flexibility
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in device descriptor handling
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Signed-off-by: HiFiPhile <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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- call after (enum non-blocking delay) also support rtos now
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change not set after 20ms
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Signed-off-by: HiFiPhile <[email protected]>
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enumeration delay
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Co-authored-by: Copilot <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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delay for stable speed detection
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