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An XFER_COMPLETE dropped by a full event queue leaves its endpoint's
BUSY|CLAIMED state set forever - the consumer that normally clears it
never sees the event, so usbd_edpt_claim()/usbd_edpt_xfer() fail from
then on and the class never re-arms the endpoint. Clear both flags when
the enqueue fails: the completion is lost either way, but the endpoint
stays usable.
Unit test: arm a bulk endpoint, drop its completion against a full
queue, verify the endpoint can be claimed and re-armed.
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A SETUP counted before a bus reset must not be carried across it: the
consumer would either skip a post-reset SETUP (count drained by the
stale entry) or, if the count leaked high for any other reason, skip
them all. usbd_reset() now zeroes the counter; the consumer already
guards on zero, and any pre-reset SETUP still in the queue is stale by
definition and correctly discarded.
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A SETUP arriving while the event queue is full is silently dropped by
queue_event(), but _usbd_queued_setup has already been incremented. The
leaked count makes the event handler skip every subsequent SETUP
("Skipped since there is other SETUP in queue") forever: EP0 stays deaf
until tud_init() while the device otherwise looks alive - enumerated,
endpoints armed. Undo the increment when the enqueue fails.
Unit test: fill the queue so a SETUP is dropped, then verify the next
SETUP still completes a GET_DESCRIPTOR control transfer.
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Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01HeF2gZ1M7GWkz6Av4BpKPg
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Signed-off-by: HiFiPhile <[email protected]>
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Generated-by: OpenAI Codex
Signed-off-by: aineoae86-sys <[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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* device: clamp EP0 OUT data copy to the control transfer buffer
usbd_control_xfer_cb() copied xferred_bytes from the EP0 bounce buffer
into the requester's buffer with no bound. A non-compliant host that
sends an OUT data packet larger than the control transfer's data_len
(= min(len, wLength), the buffer capacity) would overflow that buffer
and over-count total_xferred. Clamp xferred_bytes to the remaining
buffer space before the memcpy and accounting.
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Add native USB-MIDI 2.0 Device class driver to TinyUSB. Implements the
USB-MIDI 2.0 specification with both Alt Setting 0 (MIDI 1.0 fallback)
and Alt Setting 1 (UMP native) descriptor support.
Driver features:
- UMP (Universal MIDI Packet) read/write with atomic message framing
- Protocol negotiation: Endpoint Discovery, Config Request/Notify,
Function Block Discovery (embedded in driver)
- Group Terminal Block descriptor via GET_DESCRIPTOR
- Alt Setting switch handler with endpoint re-arm
- Static allocation, no dynamic memory, ISR-safe
Build system:
- Register midi2d_* in usbd.c driver table
- Add TUD_MIDI2_DESCRIPTOR macros to usbd.h
- Add config defaults (CFG_TUD_MIDI2_*) to tusb_option.h
- Add midi2_ump_word_count() to midi.h (shared by Device and Host)
- Add midi2_device.c/h to family.cmake and CMakeLists.txt
- Add midi2_device.h include to tusb.h
All changes guarded by #if CFG_TUD_MIDI2 (default 0). Zero impact on
existing drivers and examples.
Tested: Raspberry Pi Pico (RP2040), Linux ALSA, Windows MIDI Services
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endpoint state handling methods and accesses
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`_usbd_dev` structure and remove `usbd_control_reset`
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fix printer GET_DEVICE_ID request weird wIndex (interface high, alt low)
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Signed-off-by: HiFiPhile <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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hcd: add stm32_fsdev driver
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Add dcd_configure for dwc2 FIFO config
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Signed-off-by: Zixun LI <[email protected]>
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Signed-off-by: Zixun LI <[email protected]>
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Signed-off-by: Zixun LI <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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cdc device omit ep buffer when hwfifo is supported
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copilot/fix-dcd-edpt-xfer-issue
Signed-off-by: HiFiPhile <[email protected]>
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copilot/fix-dcd-edpt-xfer-issue
Signed-off-by: HiFiPhile <[email protected]>
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- Added bool is_isr parameter to usbd_edpt_xfer() and usbd_edpt_xfer_fifo() wrapper functions
- These are called by class drivers to queue USB transfers
- Updated all callers to pass false by default (non-ISR context)
- Updated audiod_rx_xfer_isr() and audiod_tx_xfer_isr() to pass true (ISR context)
- All 21 unit tests pass
Co-authored-by: HiFiPhile <[email protected]>
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Co-authored-by: HiFiPhile <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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