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Associate UAC1 AudioStreaming endpoints by their usage type. Keep data and implicit-feedback IN endpoints as streams while leaving explicit feedback endpoints unopened until feedback scheduling is supported.
Signed-off-by: HiFiPHile <[email protected]>
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Provide a high-level audio streaming API over UAC 1.0 devices while
keeping the USB topology private: applications select supported
{format, sample_rate, channels} configurations per logical stream, and
the driver owns the mapping to AS interface, alternate setting, and
endpoint.
- One logical stream per direction per instance; multiple AS interfaces
and alternate settings in a direction are merged into the stream's
configuration list (discrete tuples; continuous ranges exposed as a
single configuration at the top rate)
- Asynchronous tuh_audio_configure(): SET_INTERFACE to the selected
alternate setting, open/reconfigure the endpoint, set the sampling
frequency when supported, initialize the FIFO and packet scheduler,
then invoke the completion callback
- Frame-based FIFO streaming: tuh_audio_read()/tuh_audio_write() queue
whole frames; the driver owns transfer replenishment and fractional
packet scheduling (44.1 kHz pays back the 0.1 frame/ms remainder via
an accumulator for exact average pacing)
- tuh_audio_start()/tuh_audio_stop() activate/deactivate the stream
interface through SET_INTERFACE (alt n / alt 0)
Driver correctness fixes:
- Parse only the AC header's interface collection; MIDI Streaming and
other subclasses are skipped
- Keep every discrete format as a separate configuration; endpoints are
opened only for the alternate setting selected by tuh_audio_configure()
- Check tuh_interface_set() return values and SET_INTERFACE transfer
results instead of ignoring failures
- Validate instance state, direction, buffers, and frame counts in every
transfer API
- Feature Unit requests use the control's real width (mute/AGC/loudness
1 byte, others 2 bytes) and convert multibyte values to host order
- Failed/stalled/aborted isochronous transfers reach only the error
callback, never the capture/playback callbacks
The audio_host example uses the new API: 48 kHz stereo by default,
automatic stream restart on error callbacks, a sine test tone on the
playback stream, and periodic mic-only / spk-only / echo phase switching.
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This commit refactors the TUH_AUDIO (USB Audio Host) class driver to
simplify its public API and improve multi-AS (Audio Streaming) interface
support. The changes are focused on three files: the core driver
(audio_host.c/h) and the example application (audio_app.c).
Key changes in src/class/audio/audio_host.h:
- Remove tuh_audio_descriptor_cb_t and tuh_audio_mount_cb_t structures.
The mount callback no longer passes a large descriptor-info struct;
applications query per-AS info via tuh_audio_as_get_info().
- Add tuh_audio_get_dev_addr() and tuh_audio_get_feature_unit_id()
accessors to retrieve device address and feature-unit ID from an
interface index.
- Simplify control-transfer APIs by replacing (daddr, itf_num, unit_id)
parameters with a single idx parameter:
tuh_audio_set_sampling_freq(idx, as_idx, ...)
tuh_audio_get_sampling_freq(idx, as_idx, ...)
tuh_audio_feature_unit_set(idx, control_selector, channel, ...)
tuh_audio_feature_unit_get(idx, control_selector, channel, ...)
- Add synchronous wrapper APIs using TU_API_SYNC macro:
tuh_audio_get_sampling_freq_sync()
tuh_audio_set_sampling_freq_sync()
tuh_audio_feature_unit_set_sync()
tuh_audio_feature_unit_get_sync()
- Update isochronous endpoint APIs to use (idx, as_idx) instead of
(daddr, idx):
tuh_audio_receive(idx, as_idx, buffer, len)
tuh_audio_send(idx, as_idx, buffer, len)
- Remove tuh_audio_descriptor_cb() weak callback.
- Update tuh_audio_mount_cb() signature from mount_cb(param) to no param.
- Update tuh_audio_rx_cb()/tuh_audio_tx_cb() first parameter from idx to
dev_addr for consistency with other class drivers.
Key changes in src/class/audio/audio_host.c:
- Delete tuh_audio_descriptor_cb weak stub.
- Refactor get_idx_by_ep_addr() to iterate all AS interfaces per device
instead of relying on single ep_in/ep_out fields.
- Add audioh_get_ep_addr_by_dir() helper to find an endpoint address by
direction across multiple AS interfaces.
- Simplify audioh_close() cleanup: remove now-removed single-endpoint
fields (ep_in, ep_out) and rely on tu_memclr(p_audio->as, ...).
- Update audioh_xfer_cb() to pass dev_addr (not idx) to rx/tx callbacks,
matching the new callback signature.
- Simplify audioh_open(): remove descriptor-callback emission and the
temporary desc_cb structure; store only ac_itf_num instead of
bInterfaceNumber + iInterface + as_interface_num.
- Rename local descriptor pointers for clarity:
desc_input_terminal (was desc_it)
desc_output_terminal (was desc_ot)
Key changes in examples/host/audio_host/src/audio_app.c:
- Remove now-unnecessary globals: audio_ep_in, audio_ep_out, audio_ac_itf,
audio_feature_unit_id.
- Initialize audio_dev_addr, audio_idx, audiostream_in_idx,
audiostream_out_idx to 0xFF (TUSB_INDEX_INVALID_8) instead of 0.
- Update print_as_interfaces() to use tuh_audio_as_get_count() and
tuh_audio_as_get_info() instead of accessing mount_cb_data.
- Update all callback signatures and API calls to match the new driver API.
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const style
Rename descriptor pointer variables to use desc_ prefix for consistency with audio_device.c:
- it -> desc_input_terminal
- ot -> desc_output_terminal
- fu -> desc_feature_unit
- itf -> desc_interface
- p_ep -> desc_endpoint
Unify const qualifier placement to type_t const * style.
Add file header comment describing UAC 1.0 host driver capabilities.
Switch license header to SPDX identifier.
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- Fix missing tu_htole16() conversions for wValue and wIndex in
tuh_audio_set_sampling_freq, tuh_audio_get_sampling_freq,
tuh_audio_feature_unit_set, and tuh_audio_feature_unit_get
- Fix incorrect wIndex parameter order in feature unit requests
(unit_id and itf_num were swapped)
- Replace static freq_buf with per-endpoint ctrl buffer in
tuh_audio_set_sampling_freq to avoid concurrency issues
- Update audio_host README to match actual example behavior
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control transfer buffer
- Stop parsing at first non-Audio interface in audioh_open to avoid claiming unrelated interfaces
- Call usbh_driver_set_config_complete for AS and unknown interfaces to allow enumeration to continue
- Add global ctrl endpoint buffer to audioh_epbuf_t to fix use-after-return in feature_unit_set
- Add sampling_freq NULL check and initialize to 0 in tuh_audio_get_sampling_freq
- Change BOARD_TUH_RHPORT from 1 to 0 in audio_host example
- Add only.txt with supported MCU/family list for audio_host example
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Add TinyUSB Host Audio class driver supporting UAC 1.0 devices.
Features:
- Support multiple Audio Streaming (AS) interfaces with independent format storage
- Support both IN (Microphone) and OUT (Speaker) endpoints
- Per-AS interface format info: channels, sample rate, bit resolution
- Support Feature Unit volume control
- Support sampling frequency get/set
- Add host/audio_host example for STM32F407 discovery board
- Support mono-to-stereo conversion for loopback
Changes:
- Add src/class/audio/audio_host.c and audio_host.h
- Register AUDIO driver in usbh.c
- Add CFG_TUH_AUDIO macro in tusb_option.h
- Add host/audio_host example with CMake and Makefile build support
Tested with Jabra USB headset (stereo speaker + mono microphone) on STM32F407 disco.
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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]>
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Signed-off-by: Javid Khan <[email protected]>
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feat(midi2): derive function blocks from the GTB descriptor
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Signed-off-by: HiFiPhile <[email protected]>
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Fix usbd empty builtin driver warning
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Signed-off-by: HiFiPhile <[email protected]>
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Signed-off-by: HiFiPhile <[email protected]>
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Fix USBTMC status byte interrupt buffer
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bound ndp16 wLength against received ntb in recv_validate_datagram
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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]>
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Signed-off-by: HiFiPhile <[email protected]>
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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]>
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Generated-by: OpenAI Codex
Signed-off-by: aineoae86-sys <[email protected]>
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max3421: prevent USB host hang at startup
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cdc_host: fix undeclared 'idx' when only LINE_CONTROL_ON_ENUM is defined
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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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stabilization timing
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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.
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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]>
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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
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Signed-off-by: HiFiPhile <[email protected]>
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typec/stm32: fix UCPD sink bugs affecting compatibility with newer PD sources
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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
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Signed-off-by: HiFiPhile <[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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Signed-off-by: HiFiPhile <[email protected]>
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dcd/stm32_fsdev: workaround CH32 EP0 premature OUT ACK
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bound item size to remaining length in hid report descriptor parser
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Signed-off-by: HiFiPhile <[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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Signed-off-by: HiFiPhile <[email protected]>
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The CH58x->CH583 rename left OPT_MCU_CH583 defined twice at 2240 plus a second
literal 2240 for OPT_MCU_CH582 -- a duplicate public MCU option macro (redefinition).
Collapse to a single canonical OPT_MCU_CH583 and define OPT_MCU_CH582 as a token
alias of it (matching the OPT_MCU_SAML21/MIMXRT10XX alias style), so there is one
value and CH582 still selects the CH583 code path.
Found by Codex review.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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The BSP family and MCU option were named "ch58x"/"CH58X", but the supported part is
the CH583/CH582 (and the SDK repo is openwch/ch583); CH585 is a separate MCU family,
so the CH58x umbrella was misleading. Rename to the specific family:
- hw/bsp/ch58x -> hw/bsp/ch583 (dir), and the BSP-local files ch58x_it.* ->
ch583_it.*, system_ch58x.* -> system_ch583.* (include guards/refs updated). The
vendor SDK files (CH58x_common.h, CH58x_*.c in hw/mcu/wch/ch583) keep their names.
- OPT_MCU_CH58X -> OPT_MCU_CH583 in tusb_option.h, tusb_mcu.h, and the shared WCH
USBFS driver (ch32_usbfs_reg.h, dcd_ch32_usbfs.c). OPT_MCU_CH582 is kept as an
alias (same value), so either name selects the same code.
- FAMILY_MCUS CH58X -> CH583, CFG_TUSB_MCU=OPT_MCU_CH583, mcu:CH58X -> mcu:CH583 in
the example skip lists, the CI build matrix (ci_set_matrix.py), the get_deps family
tag, and docs/reference/boards.rst.
Board names (ch582m_evt, yd-ch582m) are unchanged. Verified: make + cmake build for
ch582m_evt, and ci.lan HIL (all device examples pass).
Co-Authored-By: Claude Opus 4.8 (1M context) <[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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