Changes

nokia cosmetic: add bts_is_insite() function

Nokia InSite gets a different config than the larger Nokia BTS models,
and make_bts_config() function checks the BTS type to decide which
config to send.  Change the BTS type check from a long 'if' line that
compares against 3 different InSite BTS type codes to bts_is_insite()
helper function that encapsulates a switch statement.

Upcoming code additions will need to check for Flexi Multiradio BTS
family in a similar manner - so be consistent.

Change-Id: I44bbcd79d9741f1df280b6b2391f04f754598035

nokia cosmetic: factor out BTS_CONF_COMPL handling

When the BTS accepts the config sent to it via BTS_CONF_DATA, it
responds with BTS_CONF_COMPL.  Upon receiving the latter message,
we have to send TRX unlock and TRX reset commands, and we have to
start LAPD for RSL.  Factor out this logic into a helper function,
to reduce the level of indentation and make it easier to extend.

Change-Id: I26e9b25ba4e68e945f7dd8a632009cc3683a322c

Nokia Flexi Multiradio: reset non-BCCH TRX

In the case of MetroSite and UltraSite BTS, it has been determined
empirically that TRX reset needs to be skipped for non-BCCH TRX.
However, the opposite situation holds on Flexi MR: non-BCCH TRX
do need to be reset, or they fail to come up.  Solution:
conditionalize reset of non-BCCH TRX on Nokia BTS type.

Change-Id: I270c1ffab074c1e5a43ab9dfa103725a1518f718

nokia cosmetic: add bts_is_insite() function

Nokia InSite gets a different config than the larger Nokia BTS models,
and make_bts_config() function checks the BTS type to decide which
config to send.  Change the BTS type check from a long 'if' line that
compares against 3 different InSite BTS type codes to bts_is_insite()
helper function that encapsulates a switch statement.

Upcoming code additions will need to check for Flexi Multiradio BTS
family in a similar manner - so be consistent.

Change-Id: I44bbcd79d9741f1df280b6b2391f04f754598035

nokia cosmetic: factor out BTS_CONF_COMPL handling

When the BTS accepts the config sent to it via BTS_CONF_DATA, it
responds with BTS_CONF_COMPL.  Upon receiving the latter message,
we have to send TRX unlock and TRX reset commands, and we have to
start LAPD for RSL.  Factor out this logic into a helper function,
to reduce the level of indentation and make it easier to extend.

Change-Id: I26e9b25ba4e68e945f7dd8a632009cc3683a322c

Nokia Flexi Multiradio: reset non-BCCH TRX

In the case of MetroSite and UltraSite BTS, it has been determined
empirically that TRX reset needs to be skipped for non-BCCH TRX.
However, the opposite situation holds on Flexi MR: non-BCCH TRX
do need to be reset, or they fail to come up.  Solution:
conditionalize reset of non-BCCH TRX on Nokia BTS type.

Change-Id: I270c1ffab074c1e5a43ab9dfa103725a1518f718

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

build: detect pthread_setname_np and sched_* APIs, guard usage

Add configure checks for pthread_setname_np and sched_* functions.
Wrap their usage with HAVE_* guards to avoid build failures on
platforms where they are unavailable.

Return -ENOTSUP for unsupported scheduler operations.

Improves portability across non-Linux and restricted environments
(e.g. WebAssembly).

Change-Id: Ic3f1492544439d88c5e6683330c6696de1c2f85b

transceiver: add optional WebSDR device support

- Add support for WebSDR devices enabled via the --with-websdr
configure flag.
- add libosmo-trx-websdr library and pkg-config file
- update .gitignore for wasm and pkg-config artifacts

Change-Id: Ia0d340c323c2eea28fbe82601ba0af7cfbd68f6d

device: add WebSDR radio backend

Introduce a new optional WebSDR device backend, enabled via
--with-websdr.

Add WebSDRDevice implementation and build integration, providing
a RadioDevice interface backed by callback hooks for control and
sample I/O.

Intended for Web-based deployments where osmo-trx interacts with
SDR hardware via a WebSDR/WebUSB frontend.

Change-Id: Ie459cbd70388dd8ff5b89221d30770bab0bd9014

trx: add JSON serialization for 'show trx'

Introduce trx_to_json() helper to serialize the output of
'show trx' into JSON format.

Also initialize talloc/VTY context in websdr entrypoint to
allow accessing TRX configuration programmatically.

Intended for external consumers (e.g. WebSDR frontend).

Change-Id: Icbfb754580daa6db9b5646cc6698a6a6ee1c1610

convolve: avoid function pointer casts by adding wrapper functions

Introduce _base_convolve_*_void() wrappers matching the expected
function pointer signatures and use them instead of casting
_base_convolve_* functions to (void *).

This removes unsafe function pointer casts and improves
type safety, which is required for stricter toolchains and
non-native targets (e.g. WebAssembly)

Change-Id: Idecb118be285eb3e4691d1761d0d8fa24fd80c75

build: detect pthread_setname_np and sched_* APIs, guard usage

Add configure checks for pthread_setname_np and sched_* functions.
Wrap their usage with HAVE_* guards to avoid build failures on
platforms where they are unavailable.

Return -ENOTSUP for unsupported scheduler operations.

Improves portability across non-Linux and restricted environments
(e.g. WebAssembly).

Change-Id: Ic3f1492544439d88c5e6683330c6696de1c2f85b

transceiver: add optional WebSDR device support

- Add support for WebSDR devices enabled via the --with-websdr
configure flag.
- add libosmo-trx-websdr library and pkg-config file
- update .gitignore for wasm and pkg-config artifacts

Change-Id: Ia0d340c323c2eea28fbe82601ba0af7cfbd68f6d

trx: add JSON serialization for 'show trx'

Introduce trx_to_json() helper to serialize the output of
'show trx' into JSON format.

Also initialize talloc/VTY context in websdr entrypoint to
allow accessing TRX configuration programmatically.

Intended for external consumers (e.g. WebSDR frontend).

Change-Id: Icbfb754580daa6db9b5646cc6698a6a6ee1c1610

convolve: avoid function pointer casts by adding wrapper functions

Introduce _base_convolve_*_void() wrappers matching the expected
function pointer signatures and use them instead of casting
_base_convolve_* functions to (void *).

This removes unsafe function pointer casts and improves
type safety, which is required for stricter toolchains and
non-native targets (e.g. WebAssembly)

Change-Id: Idecb118be285eb3e4691d1761d0d8fa24fd80c75

device: add WebSDR radio backend

Introduce a new optional WebSDR device backend, enabled via
--with-websdr.

Add WebSDRDevice implementation and build integration, providing
a RadioDevice interface backed by callback hooks for control and
sample I/O.

Intended for Web-based deployments where osmo-trx interacts with
SDR hardware via a WebSDR/WebUSB frontend.

Change-Id: Ie459cbd70388dd8ff5b89221d30770bab0bd9014

device: add WebSDR radio backend

Introduce a new optional WebSDR device backend, enabled via
--with-websdr.

Add WebSDRDevice implementation and build integration, providing
a RadioDevice interface backed by callback hooks for control and
sample I/O.

Intended for Web-based deployments where osmo-trx interacts with
SDR hardware via a WebSDR/WebUSB frontend.

Change-Id: Ie459cbd70388dd8ff5b89221d30770bab0bd9014

trx: add JSON serialization for 'show trx'

Introduce trx_to_json() helper to serialize the output of
'show trx' into JSON format.

Also initialize talloc/VTY context in websdr entrypoint to
allow accessing TRX configuration programmatically.

Intended for external consumers (e.g. WebSDR frontend).

Change-Id: Icbfb754580daa6db9b5646cc6698a6a6ee1c1610

transceiver: add optional WebSDR device support

- Add support for WebSDR devices enabled via the --with-websdr
configure flag.
- add libosmo-trx-websdr library and pkg-config file
- update .gitignore for wasm and pkg-config artifacts

Change-Id: Ia0d340c323c2eea28fbe82601ba0af7cfbd68f6d

build: detect pthread_setname_np and sched_* APIs, guard usage

Add configure checks for pthread_setname_np and sched_* functions.
Wrap their usage with HAVE_* guards to avoid build failures on
platforms where they are unavailable.

Return -ENOTSUP for unsupported scheduler operations.

Improves portability across non-Linux and restricted environments
(e.g. WebAssembly).

Change-Id: Ic3f1492544439d88c5e6683330c6696de1c2f85b

convolve: avoid function pointer casts by adding wrapper functions

Introduce _base_convolve_*_void() wrappers matching the expected
function pointer signatures and use them instead of casting
_base_convolve_* functions to (void *).

This removes unsafe function pointer casts and improves
type safety, which is required for stricter toolchains and
non-native targets (e.g. WebAssembly)

Change-Id: Idecb118be285eb3e4691d1761d0d8fa24fd80c75

device: add WebSDR radio backend

Introduce a new optional WebSDR device backend, enabled via
--with-websdr.

Add WebSDRDevice implementation and build integration, providing
a RadioDevice interface backed by callback hooks for control and
sample I/O.

Intended for Web-based deployments where osmo-trx interacts with
SDR hardware via a WebSDR/WebUSB frontend.

Change-Id: Ie459cbd70388dd8ff5b89221d30770bab0bd9014

trx: add JSON serialization for 'show trx'

Introduce trx_to_json() helper to serialize the output of
'show trx' into JSON format.

Also initialize talloc/VTY context in websdr entrypoint to
allow accessing TRX configuration programmatically.

Intended for external consumers (e.g. WebSDR frontend).

Change-Id: Icbfb754580daa6db9b5646cc6698a6a6ee1c1610

transceiver: add optional WebSDR device support

- Add support for WebSDR devices enabled via the --with-websdr
configure flag.
- add libosmo-trx-websdr library and pkg-config file
- update .gitignore for wasm and pkg-config artifacts

Change-Id: Ia0d340c323c2eea28fbe82601ba0af7cfbd68f6d

build: detect pthread_setname_np and sched_* APIs, guard usage

Add configure checks for pthread_setname_np and sched_* functions.
Wrap their usage with HAVE_* guards to avoid build failures on
platforms where they are unavailable.

Return -ENOTSUP for unsupported scheduler operations.

Improves portability across non-Linux and restricted environments
(e.g. WebAssembly).

Change-Id: Ic3f1492544439d88c5e6683330c6696de1c2f85b

convolve: avoid function pointer casts by adding wrapper functions

Introduce _base_convolve_*_void() wrappers matching the expected
function pointer signatures and use them instead of casting
_base_convolve_* functions to (void *).

This removes unsafe function pointer casts and improves
type safety, which is required for stricter toolchains and
non-native targets (e.g. WebAssembly)

Change-Id: Idecb118be285eb3e4691d1761d0d8fa24fd80c75

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

tcap_as_loadshare: Clarify name of tcap asp selection function

Change-Id: I327ad282d2689be2bcf7d3da23026717923c9325

tcap_as_loadshare: Route msg based on TCAP route if cache lookup fails

Related: SYS#5423
Change-Id: I2fd9068be8a0a512b17c8bd2365aa87c266e5669

tcap_as_loadshare: Route msg based on TCAP route if cache lookup fails

Related: SYS#5423
Change-Id: I2fd9068be8a0a512b17c8bd2365aa87c266e5669

tcap_as_loadshare: Clarify name of tcap asp selection function

Change-Id: I327ad282d2689be2bcf7d3da23026717923c9325

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

transceiver: add optional Laurent burst LUT modulation (int16)

Introduce an optional Burst LUT optimization for Laurent-based burst
modulation, enabled via --with-burst-lut.

- Add precomputed Laurent LUT tables (float and int16 I/Q variants)
- Generate LUT at initialization (prepareBurstLUT)
- Use LUT-based modulation for sps=4 when enabled
- Add configure.ac option and USE_BURST_LUT define

This reduces runtime computation by replacing per-burst Laurent
processing with memcpy-based LUT lookups.

Change-Id: I1715c2d33dc55fe1c7be5c6e7259d378ea5e80b2

transceiver: add optional Laurent burst LUT modulation (int16)

Introduce an optional Burst LUT optimization for Laurent-based burst
modulation, enabled via --with-burst-lut.

- Add precomputed Laurent LUT tables (float and int16 I/Q variants)
- Generate LUT at initialization (prepareBurstLUT)
- Use LUT-based modulation for sps=4 when enabled
- Add configure.ac option and USE_BURST_LUT define

This reduces runtime computation by replacing per-burst Laurent
processing with memcpy-based LUT lookups.

Change-Id: I1715c2d33dc55fe1c7be5c6e7259d378ea5e80b2

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

build: remove unused sys/timerfd.h include

The header is not used in scheduler_trx.c and breaks builds on
platforms where timerfd is not available (e.g. Web/emscripten).

Remove the unused include.

Change-Id: Id5a700c865f984e8f99199a1e365bb7f1462030a

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

build: remove unused sys/timerfd.h include

The header is not used in scheduler_trx.c and breaks builds on
platforms where timerfd is not available (e.g. Web/emscripten).

Remove the unused include.

Change-Id: Id5a700c865f984e8f99199a1e365bb7f1462030a

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

convolve: avoid function pointer casts by adding wrapper functions

Introduce _base_convolve_*_void() wrappers matching the expected
function pointer signatures and use them instead of casting
_base_convolve_* functions to (void *).

This removes unsafe function pointer casts and improves
type safety, which is required for stricter toolchains and
non-native targets (e.g. WebAssembly)

Change-Id: Idecb118be285eb3e4691d1761d0d8fa24fd80c75

trx: add JSON serialization for 'show trx'

Introduce trx_to_json() helper to serialize the output of
'show trx' into JSON format.

Also initialize talloc/VTY context in websdr entrypoint to
allow accessing TRX configuration programmatically.

Intended for external consumers (e.g. WebSDR frontend).

Change-Id: Icbfb754580daa6db9b5646cc6698a6a6ee1c1610

device: add WebSDR radio backend

Introduce a new optional WebSDR device backend, enabled via
--with-websdr.

Add WebSDRDevice implementation and build integration, providing
a RadioDevice interface backed by callback hooks for control and
sample I/O.

Intended for Web-based deployments where osmo-trx interacts with
SDR hardware via a WebSDR/WebUSB frontend.

Change-Id: Ie459cbd70388dd8ff5b89221d30770bab0bd9014

build: detect pthread_setname_np and sched_* APIs, guard usage

Add configure checks for pthread_setname_np and sched_* functions.
Wrap their usage with HAVE_* guards to avoid build failures on
platforms where they are unavailable.

Return -ENOTSUP for unsupported scheduler operations.

Improves portability across non-Linux and restricted environments
(e.g. WebAssembly).

Change-Id: Ic3f1492544439d88c5e6683330c6696de1c2f85b

transceiver: add optional WebSDR device support

- Add support for WebSDR devices enabled via the --with-websdr
configure flag.
- add libosmo-trx-websdr library and pkg-config file
- update .gitignore for wasm and pkg-config artifacts

Change-Id: Ia0d340c323c2eea28fbe82601ba0af7cfbd68f6d

convolve: avoid function pointer casts by adding wrapper functions

Introduce _base_convolve_*_void() wrappers matching the expected
function pointer signatures and use them instead of casting
_base_convolve_* functions to (void *).

This removes unsafe function pointer casts and improves
type safety, which is required for stricter toolchains and
non-native targets (e.g. WebAssembly)

Change-Id: Idecb118be285eb3e4691d1761d0d8fa24fd80c75

trx: add JSON serialization for 'show trx'

Introduce trx_to_json() helper to serialize the output of
'show trx' into JSON format.

Also initialize talloc/VTY context in websdr entrypoint to
allow accessing TRX configuration programmatically.

Intended for external consumers (e.g. WebSDR frontend).

Change-Id: Icbfb754580daa6db9b5646cc6698a6a6ee1c1610

device: add WebSDR radio backend

Introduce a new optional WebSDR device backend, enabled via
--with-websdr.

Add WebSDRDevice implementation and build integration, providing
a RadioDevice interface backed by callback hooks for control and
sample I/O.

Intended for Web-based deployments where osmo-trx interacts with
SDR hardware via a WebSDR/WebUSB frontend.

Change-Id: Ie459cbd70388dd8ff5b89221d30770bab0bd9014

build: detect pthread_setname_np and sched_* APIs, guard usage

Add configure checks for pthread_setname_np and sched_* functions.
Wrap their usage with HAVE_* guards to avoid build failures on
platforms where they are unavailable.

Return -ENOTSUP for unsupported scheduler operations.

Improves portability across non-Linux and restricted environments
(e.g. WebAssembly).

Change-Id: Ic3f1492544439d88c5e6683330c6696de1c2f85b

transceiver: add optional WebSDR device support

- Add support for WebSDR devices enabled via the --with-websdr
configure flag.
- add libosmo-trx-websdr library and pkg-config file
- update .gitignore for wasm and pkg-config artifacts

Change-Id: Ia0d340c323c2eea28fbe82601ba0af7cfbd68f6d

nokia: make Rx diversity configurable

The config structure sent to the BTS with BTS_CONF_DATA includes
an IE that enables or disables Rx diversity.  In the original code
this setting was hard-coded to enabled state; make it configurable
via vty.

Change-Id: I73bd91b717a8c8b338bacb6ed9db73bb07245c12

nokia bts-reset-timer: raise the maximum to 300 s

The previous vty tuning range for this timer (allowing up to 100 s)
is not sufficient for Flexi Multiradio BTS, where we need 120 s
minimum or 130 s for some margin.  Raise the upper limit for vty
config of this parameter to 5 min, which should be long enough
to not require further revisiting.

Change-Id: Ie5b784c9cce56e27800084471a7fb0b867cc0c69

nokia: respond to BTS_COMMISS_TEST_REQ

In some cases, Flexi Multiradio BTS sends us BTS_COMMISS_TEST_REQ
during its init process, and expects us to respond with
BTS_COMMISS_TEST_COMPL, indicating that we did the requested
commissioning tests.  While we don't do any actual tests currently,
and we have not yet reached an understanding of the exact conditions
as to when the BTS makes this query of us, if it does send us
BTS_COMMISS_TEST_REQ, we need to respond with BTS_COMMISS_TEST_COMPL
to make it happy.

Change-Id: I0f2710c3cdb38a9e5b37e40ca5584237a730a902

nokia vty: change help strings away from "*Site"

Support for Nokia BTS in OsmoBSC is being expanded from just *Site
family to also include Flexi Multiradio - therefore, help strings
and error messages in vty should be changed accordingly.

FIXME: names of Nokia-specific vty settings still begin with
nokia_site, ditto for the name of the BTS model.  TODO: decide
on a proper long-term solution.

Change-Id: I55556b7b5aa5bc6efcbee815e9011497a933697c

nokia skip-reset: make consistent with other vty settings

All other Nokia-specific vty settings use is_nokia_bts() helper
function, while the code for skip-reset directly compares
bts->type against GSM_BTS_TYPE_NOKIA_SITE.  Change to use the
helper function: it is consistent with other vty settings,
and avoids one more place that erroneously refers to *Site
instead of all Nokia BTS.

Change-Id: Ie8cdac51f82185e2d4f37a8da00acba633670052

nokia: add support for Flexi Multiradio

Previous support existed for Nokia MetroSite, UltraSite and InSite
models, resulting in BTS model name "nokia_site".  However, there
exist newer Nokia BTS models that also support E1 Abis and can be
supported by OsmoBSC with relatively small changes: Flexi EDGE,
Flexi Multiradio and Flexi Multiradio 10.  Out of these newer
models, American 2G Cooperative (the present patch author's current
organization) has only Flexi MR at the present time - hence this
model shall be the first "new" Nokia BTS to be supported.

The first change required in order to support Flexi MR is ability
to receive long OML messages that have been segmented by the BTS:
the new BTS sends a much longer BTS_CONF_REQ message, and we have
to handle it correctly.

Change-Id: Icd429552c3b5e90d6c5d3ae5f52afd6550e3cebc

rsl: don't send legacy Chan Ident IE for Nokia BTS

The description of CHAN ACTIV command message in TS 48.058
section 8.4.1 lists Channel Identification as an optional IE,
with a note that reads "Included if compatibility with phase1
is required."  This note may have been misinterpreted as
referring to compatibility with Phase 1 phones - but since
this network-internal Abis detail is invisible to phones,
the real intent of GSM spec authors here must have been
compatibility with Phase 1 BTS.

Previous versions of OsmoBSC would always include this IE,
and it appears that all previously supported BTS models
would simply ignore it.  However, newer Nokia BTS models
(observed on Flexi Multiradio at least) dislike this IE
and return CHAN ACTIV NACK with an optional IE error cause
if it is included.

To avoid changing OsmoBSC behavior for other users, let us
conditionalize removal of this legacy IE on Nokia BTS for now.
This change has been tested on InSite, MetroSite and Flexi
Multiradio - no adverse effects on previously supported
*Site models.

Change-Id: Ibce7a841907ac87ae378ded3ddb174d38b70b7b7

nokia: make Rx diversity configurable

The config structure sent to the BTS with BTS_CONF_DATA includes
an IE that enables or disables Rx diversity.  In the original code
this setting was hard-coded to enabled state; make it configurable
via vty.

Change-Id: I73bd91b717a8c8b338bacb6ed9db73bb07245c12

nokia bts-reset-timer: raise the maximum to 300 s

The previous vty tuning range for this timer (allowing up to 100 s)
is not sufficient for Flexi Multiradio BTS, where we need 120 s
minimum or 130 s for some margin.  Raise the upper limit for vty
config of this parameter to 5 min, which should be long enough
to not require further revisiting.

Change-Id: Ie5b784c9cce56e27800084471a7fb0b867cc0c69

nokia: respond to BTS_COMMISS_TEST_REQ

In some cases, Flexi Multiradio BTS sends us BTS_COMMISS_TEST_REQ
during its init process, and expects us to respond with
BTS_COMMISS_TEST_COMPL, indicating that we did the requested
commissioning tests.  While we don't do any actual tests currently,
and we have not yet reached an understanding of the exact conditions
as to when the BTS makes this query of us, if it does send us
BTS_COMMISS_TEST_REQ, we need to respond with BTS_COMMISS_TEST_COMPL
to make it happy.

Change-Id: I0f2710c3cdb38a9e5b37e40ca5584237a730a902

rsl: don't send legacy Chan Ident IE for Nokia BTS

The description of CHAN ACTIV command message in TS 48.058
section 8.4.1 lists Channel Identification as an optional IE,
with a note that reads "Included if compatibility with phase1
is required."  This note may have been misinterpreted as
referring to compatibility with Phase 1 phones - but since
this network-internal Abis detail is invisible to phones,
the real intent of GSM spec authors here must have been
compatibility with Phase 1 BTS.

Previous versions of OsmoBSC would always include this IE,
and it appears that all previously supported BTS models
would simply ignore it.  However, newer Nokia BTS models
(observed on Flexi Multiradio at least) dislike this IE
and return CHAN ACTIV NACK with an optional IE error cause
if it is included.

To avoid changing OsmoBSC behavior for other users, let us
conditionalize removal of this legacy IE on Nokia BTS for now.
This change has been tested on InSite, MetroSite and Flexi
Multiradio - no adverse effects on previously supported
*Site models.

Change-Id: Ibce7a841907ac87ae378ded3ddb174d38b70b7b7

nokia skip-reset: make consistent with other vty settings

All other Nokia-specific vty settings use is_nokia_bts() helper
function, while the code for skip-reset directly compares
bts->type against GSM_BTS_TYPE_NOKIA_SITE.  Change to use the
helper function: it is consistent with other vty settings,
and avoids one more place that erroneously refers to *Site
instead of all Nokia BTS.

Change-Id: Ie8cdac51f82185e2d4f37a8da00acba633670052

nokia vty: change help strings away from "*Site"

Support for Nokia BTS in OsmoBSC is being expanded from just *Site
family to also include Flexi Multiradio - therefore, help strings
and error messages in vty should be changed accordingly.

FIXME: names of Nokia-specific vty settings still begin with
nokia_site, ditto for the name of the BTS model.  TODO: decide
on a proper long-term solution.

Change-Id: I55556b7b5aa5bc6efcbee815e9011497a933697c

nokia: add support for Flexi Multiradio

Previous support existed for Nokia MetroSite, UltraSite and InSite
models, resulting in BTS model name "nokia_site".  However, there
exist newer Nokia BTS models that also support E1 Abis and can be
supported by OsmoBSC with relatively small changes: Flexi EDGE,
Flexi Multiradio and Flexi Multiradio 10.  Out of these newer
models, American 2G Cooperative (the present patch author's current
organization) has only Flexi MR at the present time - hence this
model shall be the first "new" Nokia BTS to be supported.

The first change required in order to support Flexi MR is ability
to receive long OML messages that have been segmented by the BTS:
the new BTS sends a much longer BTS_CONF_REQ message, and we have
to handle it correctly.

Change-Id: Icd429552c3b5e90d6c5d3ae5f52afd6550e3cebc

Cosmetic: bts_nokia_site: fix comment formatting

Ensure each line of a multiline comment starts with " * ".

Related: https://gerrit.osmocom.org/c/osmo-bsc/+/42712/comment/6aa80188_f56f2265/
Change-Id: I83ed16ec09fb66076dc2ba6a49ef272657b09407

Cosmetic: bts_nokia_site: fix comment formatting

Ensure each line of a multiline comment starts with " * ".

Related: https://gerrit.osmocom.org/c/osmo-bsc/+/42712/comment/6aa80188_f56f2265/
Change-Id: I83ed16ec09fb66076dc2ba6a49ef272657b09407

nokia: respond to BTS_COMMISS_TEST_REQ

In some cases, Flexi Multiradio BTS sends us BTS_COMMISS_TEST_REQ
during its init process, and expects us to respond with
BTS_COMMISS_TEST_COMPL, indicating that we did the requested
commissioning tests.  While we don't do any actual tests currently,
and we have not yet reached an understanding of the exact conditions
as to when the BTS makes this query of us, if it does send us
BTS_COMMISS_TEST_REQ, we need to respond with BTS_COMMISS_TEST_COMPL
to make it happy.

Change-Id: I0f2710c3cdb38a9e5b37e40ca5584237a730a902

nokia: make Rx diversity configurable

The config structure sent to the BTS with BTS_CONF_DATA includes
an IE that enables or disables Rx diversity.  In the original code
this setting was hard-coded to enabled state; make it configurable
via vty.

Change-Id: I73bd91b717a8c8b338bacb6ed9db73bb07245c12

nokia bts-reset-timer: raise the maximum to 300 s

The previous vty tuning range for this timer (allowing up to 100 s)
is not sufficient for Flexi Multiradio BTS, where we need 120 s
minimum or 130 s for some margin.  Raise the upper limit for vty
config of this parameter to 5 min, which should be long enough
to not require further revisiting.

Change-Id: Ie5b784c9cce56e27800084471a7fb0b867cc0c69

rsl: don't send legacy Chan Ident IE for Nokia BTS

The description of CHAN ACTIV command message in TS 48.058
section 8.4.1 lists Channel Identification as an optional IE,
with a note that reads "Included if compatibility with phase1
is required."  This note may have been misinterpreted as
referring to compatibility with Phase 1 phones - but since
this network-internal Abis detail is invisible to phones,
the real intent of GSM spec authors here must have been
compatibility with Phase 1 BTS.

Previous versions of OsmoBSC would always include this IE,
and it appears that all previously supported BTS models
would simply ignore it.  However, newer Nokia BTS models
(observed on Flexi Multiradio at least) dislike this IE
and return CHAN ACTIV NACK with an optional IE error cause
if it is included.

To avoid changing OsmoBSC behavior for other users, let us
conditionalize removal of this legacy IE on Nokia BTS for now.
This change has been tested on InSite, MetroSite and Flexi
Multiradio - no adverse effects on previously supported
*Site models.

Change-Id: Ibce7a841907ac87ae378ded3ddb174d38b70b7b7

nokia skip-reset: make consistent with other vty settings

All other Nokia-specific vty settings use is_nokia_bts() helper
function, while the code for skip-reset directly compares
bts->type against GSM_BTS_TYPE_NOKIA_SITE.  Change to use the
helper function: it is consistent with other vty settings,
and avoids one more place that erroneously refers to *Site
instead of all Nokia BTS.

Change-Id: Ie8cdac51f82185e2d4f37a8da00acba633670052

nokia vty: change help strings away from "*Site"

Support for Nokia BTS in OsmoBSC is being expanded from just *Site
family to also include Flexi Multiradio - therefore, help strings
and error messages in vty should be changed accordingly.

FIXME: names of Nokia-specific vty settings still begin with
nokia_site, ditto for the name of the BTS model.  TODO: decide
on a proper long-term solution.

Change-Id: I55556b7b5aa5bc6efcbee815e9011497a933697c

nokia: add support for Flexi Multiradio

Previous support existed for Nokia MetroSite, UltraSite and InSite
models, resulting in BTS model name "nokia_site".  However, there
exist newer Nokia BTS models that also support E1 Abis and can be
supported by OsmoBSC with relatively small changes: Flexi EDGE,
Flexi Multiradio and Flexi Multiradio 10.  Out of these newer
models, American 2G Cooperative (the present patch author's current
organization) has only Flexi MR at the present time - hence this
model shall be the first "new" Nokia BTS to be supported.

The first change required in order to support Flexi MR is ability
to receive long OML messages that have been segmented by the BTS:
the new BTS sends a much longer BTS_CONF_REQ message, and we have
to handle it correctly.

Change-Id: Icd429552c3b5e90d6c5d3ae5f52afd6550e3cebc

nokia: make Rx diversity configurable

The config structure sent to the BTS with BTS_CONF_DATA includes
an IE that enables or disables Rx diversity.  In the original code
this setting was hard-coded to enabled state; make it configurable
via vty.

Change-Id: I73bd91b717a8c8b338bacb6ed9db73bb07245c12

nokia: respond to BTS_COMMISS_TEST_REQ

In some cases, Flexi Multiradio BTS sends us BTS_COMMISS_TEST_REQ
during its init process, and expects us to respond with
BTS_COMMISS_TEST_COMPL, indicating that we did the requested
commissioning tests.  While we don't do any actual tests currently,
and we have not yet reached an understanding of the exact conditions
as to when the BTS makes this query of us, if it does send us
BTS_COMMISS_TEST_REQ, we need to respond with BTS_COMMISS_TEST_COMPL
to make it happy.

Change-Id: I0f2710c3cdb38a9e5b37e40ca5584237a730a902

nokia bts-reset-timer: raise the maximum to 300 s

The previous vty tuning range for this timer (allowing up to 100 s)
is not sufficient for Flexi Multiradio BTS, where we need 120 s
minimum or 130 s for some margin.  Raise the upper limit for vty
config of this parameter to 5 min, which should be long enough
to not require further revisiting.

Change-Id: Ie5b784c9cce56e27800084471a7fb0b867cc0c69

nokia skip-reset: make consistent with other vty settings

All other Nokia-specific vty settings use is_nokia_bts() helper
function, while the code for skip-reset directly compares
bts->type against GSM_BTS_TYPE_NOKIA_SITE.  Change to use the
helper function: it is consistent with other vty settings,
and avoids one more place that erroneously refers to *Site
instead of all Nokia BTS.

Change-Id: Ie8cdac51f82185e2d4f37a8da00acba633670052

rsl: don't send legacy Chan Ident IE for Nokia BTS

The description of CHAN ACTIV command message in TS 48.058
section 8.4.1 lists Channel Identification as an optional IE,
with a note that reads "Included if compatibility with phase1
is required."  This note may have been misinterpreted as
referring to compatibility with Phase 1 phones - but since
this network-internal Abis detail is invisible to phones,
the real intent of GSM spec authors here must have been
compatibility with Phase 1 BTS.

Previous versions of OsmoBSC would always include this IE,
and it appears that all previously supported BTS models
would simply ignore it.  However, newer Nokia BTS models
(observed on Flexi Multiradio at least) dislike this IE
and return CHAN ACTIV NACK with an optional IE error cause
if it is included.

To avoid changing OsmoBSC behavior for other users, let us
conditionalize removal of this legacy IE on Nokia BTS for now.
This change has been tested on InSite, MetroSite and Flexi
Multiradio - no adverse effects on previously supported
*Site models.

Change-Id: Ibce7a841907ac87ae378ded3ddb174d38b70b7b7

nokia: add support for Flexi Multiradio

Previous support existed for Nokia MetroSite, UltraSite and InSite
models, resulting in BTS model name "nokia_site".  However, there
exist newer Nokia BTS models that also support E1 Abis and can be
supported by OsmoBSC with relatively small changes: Flexi EDGE,
Flexi Multiradio and Flexi Multiradio 10.  Out of these newer
models, American 2G Cooperative (the present patch author's current
organization) has only Flexi MR at the present time - hence this
model shall be the first "new" Nokia BTS to be supported.

The first change required in order to support Flexi MR is ability
to receive long OML messages that have been segmented by the BTS:
the new BTS sends a much longer BTS_CONF_REQ message, and we have
to handle it correctly.

Change-Id: Icd429552c3b5e90d6c5d3ae5f52afd6550e3cebc

nokia vty: change help strings away from "*Site"

Support for Nokia BTS in OsmoBSC is being expanded from just *Site
family to also include Flexi Multiradio - therefore, help strings
and error messages in vty should be changed accordingly.

FIXME: names of Nokia-specific vty settings still begin with
nokia_site, ditto for the name of the BTS model.  TODO: decide
on a proper long-term solution.

Change-Id: I55556b7b5aa5bc6efcbee815e9011497a933697c

rsl: don't send legacy Chan Ident IE for Nokia BTS

The description of CHAN ACTIV command message in TS 48.058
section 8.4.1 lists Channel Identification as an optional IE,
with a note that reads "Included if compatibility with phase1
is required."  This note may have been misinterpreted as
referring to compatibility with Phase 1 phones - but since
this network-internal Abis detail is invisible to phones,
the real intent of GSM spec authors here must have been
compatibility with Phase 1 BTS.

Previous versions of OsmoBSC would always include this IE,
and it appears that all previously supported BTS models
would simply ignore it.  However, newer Nokia BTS models
(observed on Flexi Multiradio at least) dislike this IE
and return CHAN ACTIV NACK with an optional IE error cause
if it is included.

To avoid changing OsmoBSC behavior for other users, let us
conditionalize removal of this legacy IE on Nokia BTS for now.
This change has been tested on InSite, MetroSite and Flexi
Multiradio - no adverse effects on previously supported
*Site models.

Change-Id: Ibce7a841907ac87ae378ded3ddb174d38b70b7b7

nokia: add support for Flexi Multiradio

Previous support existed for Nokia MetroSite, UltraSite and InSite
models, resulting in BTS model name "nokia_site".  However, there
exist newer Nokia BTS models that also support E1 Abis and can be
supported by OsmoBSC with relatively small changes: Flexi EDGE,
Flexi Multiradio and Flexi Multiradio 10.  Out of these newer
models, American 2G Cooperative (the present patch author's current
organization) has only Flexi MR at the present time - hence this
model shall be the first "new" Nokia BTS to be supported.

The first change required in order to support Flexi MR is ability
to receive long OML messages that have been segmented by the BTS:
the new BTS sends a much longer BTS_CONF_REQ message, and we have
to handle it correctly.

Change-Id: Icd429552c3b5e90d6c5d3ae5f52afd6550e3cebc

nokia: make Rx diversity configurable

The config structure sent to the BTS with BTS_CONF_DATA includes
an IE that enables or disables Rx diversity.  In the original code
this setting was hard-coded to enabled state; make it configurable
via vty.

Change-Id: I73bd91b717a8c8b338bacb6ed9db73bb07245c12

nokia vty: change help strings away from "*Site"

Support for Nokia BTS in OsmoBSC is being expanded from just *Site
family to also include Flexi Multiradio - therefore, help strings
and error messages in vty should be changed accordingly.

Change-Id: I55556b7b5aa5bc6efcbee815e9011497a933697c

nokia bts-reset-timer: raise the maximum to 300 s

The previous vty tuning range for this timer (allowing up to 100 s)
is not sufficient for Flexi Multiradio BTS, where we need 120 s
minimum or 130 s for some margin.  Raise the upper limit for vty
config of this parameter to 5 min, which should be long enough
to not require further revisiting.

Change-Id: Ie5b784c9cce56e27800084471a7fb0b867cc0c69

nokia: respond to BTS_COMMISS_TEST_REQ

In some cases, Flexi Multiradio BTS sends us BTS_COMMISS_TEST_REQ
during its init process, and expects us to respond with
BTS_COMMISS_TEST_COMPL, indicating that we did the requested
commissioning tests.  While we don't do any actual tests currently,
and we have not yet reached an understanding of the exact conditions
as to when the BTS makes this query of us, if it does send us
BTS_COMMISS_TEST_REQ, we need to respond with BTS_COMMISS_TEST_COMPL
to make it happy.

Change-Id: I0f2710c3cdb38a9e5b37e40ca5584237a730a902

nokia bts-reset-timer: raise the maximum to 300 s

The previous vty tuning range for this timer (allowing up to 100 s)
is not sufficient for Flexi Multiradio BTS, where we need 120 s
minimum or 130 s for some margin.  Raise the upper limit for vty
config of this parameter to 5 min, which should be long enough
to not require further revisiting.

Change-Id: Ie5b784c9cce56e27800084471a7fb0b867cc0c69

nokia vty: change help strings away from "*Site"

Support for Nokia BTS in OsmoBSC is being expanded from just *Site
family to also include Flexi Multiradio - therefore, help strings
and error messages in vty should be changed accordingly.

Change-Id: I55556b7b5aa5bc6efcbee815e9011497a933697c

rsl: don't send legacy Chan Ident IE for Nokia BTS

The description of CHAN ACTIV command message in TS 48.058
section 8.4.1 lists Channel Identification as an optional IE,
with a note that reads "Included if compatibility with phase1
is required."  This note may have been misinterpreted as
referring to compatibility with Phase 1 phones - but since
this network-internal Abis detail is invisible to phones,
the real intent of GSM spec authors here must have been
compatibility with Phase 1 BTS.

Previous versions of OsmoBSC would always include this IE,
and it appears that all previously supported BTS models
would simply ignore it.  However, newer Nokia BTS models
(observed on Flexi Multiradio at least) dislike this IE
and return CHAN ACTIV NACK with an optional IE error cause
if it is included.

To avoid changing OsmoBSC behavior for other users, let us
conditionalize removal of this legacy IE on Nokia BTS for now.
This change has been tested on InSite, MetroSite and Flexi
Multiradio - no adverse effects on previously supported
*Site models.

Change-Id: Ibce7a841907ac87ae378ded3ddb174d38b70b7b7

nokia: add support for Flexi Multiradio

Previous support existed for Nokia MetroSite, UltraSite and InSite
models, resulting in BTS model name "nokia_site".  However, there
exist newer Nokia BTS models that also support E1 Abis and can be
supported by OsmoBSC with relatively small changes: Flexi EDGE,
Flexi Multiradio and Flexi Multiradio 10.  Out of these newer
models, American 2G Cooperative (the present patch author's current
organization) has only Flexi MR at the present time - hence this
model shall be the first "new" Nokia BTS to be supported.

The first change required in order to support Flexi MR is ability
to receive long OML messages that have been segmented by the BTS:
the new BTS sends a much longer BTS_CONF_REQ message, and we have
to handle it correctly.

Change-Id: Icd429552c3b5e90d6c5d3ae5f52afd6550e3cebc

nokia: make Rx diversity configurable

The config structure sent to the BTS with BTS_CONF_DATA includes
an IE that enables or disables Rx diversity.  In the original code
this setting was hard-coded to enabled state; make it configurable
via vty.

Change-Id: I73bd91b717a8c8b338bacb6ed9db73bb07245c12

nokia: respond to BTS_COMMISS_TEST_REQ

In some cases, Flexi Multiradio BTS sends us BTS_COMMISS_TEST_REQ
during its init process, and expects us to respond with
BTS_COMMISS_TEST_COMPL, indicating that we did the requested
commissioning tests.  While we don't do any actual tests currently,
and we have not yet reached an understanding of the exact conditions
as to when the BTS makes this query of us, if it does send us
BTS_COMMISS_TEST_REQ, we need to respond with BTS_COMMISS_TEST_COMPL
to make it happy.

Change-Id: I0f2710c3cdb38a9e5b37e40ca5584237a730a902

transceiver: add optional Laurent burst LUT modulation (int16)

Introduce an optional Burst LUT optimization for Laurent-based burst
modulation, enabled via --with-burst-lut.

- Add precomputed Laurent LUT tables (float and int16 I/Q variants)
- Generate LUT at initialization (prepareBurstLUT)
- Use LUT-based modulation for sps=4 when enabled
- Add configure.ac option and USE_BURST_LUT define

This reduces runtime computation by replacing per-burst Laurent
processing with memcpy-based LUT lookups.

Change-Id: I1715c2d33dc55fe1c7be5c6e7259d378ea5e80b2

transceiver: add optional Laurent burst LUT modulation (int16)

Introduce an optional Burst LUT optimization for Laurent-based burst
modulation, enabled via --with-burst-lut.

- Add precomputed Laurent LUT tables (float and int16 I/Q variants)
- Generate LUT at initialization (prepareBurstLUT)
- Use LUT-based modulation for sps=4 when enabled
- Add configure.ac option and USE_BURST_LUT define

This reduces runtime computation by replacing per-burst Laurent
processing with memcpy-based LUT lookups.

Change-Id: I1715c2d33dc55fe1c7be5c6e7259d378ea5e80b2

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

build: make timerfd usage optional

Check for sys/timerfd.h in configure and guard its usage
with HAVE_SYS_TIMERFD_H.

This avoids build failures on platforms where timerfd is
not available.

Change-Id: Id5a700c865f984e8f99199a1e365bb7f1462030a

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx: factor out clock indication handling into helper

Extract clock indication handling logic into trx_clk_phy()
and reuse it from trx_clk_read_cb()

This separates core FN processing from socket-specific code
and prepares for alternative clock sources (e.g. non-UDP /
in-memory callbacks used in WebSDR/WASM builds).

No functional changes intended

Change-Id: I0e6b3e25da14ada4d0ef86fd4c4e6bbc12e447d2

abis: add helper to update BTS identity

Introduce abis_update_bts_info() to update site_id and bts_id in
bts_dev_info at runtime

This allows adjusting BTS identity after initialization,
e.g. from external control interfaces

Change-Id: Ibafd66a1e1dc42ad0063c412087bee10d212fe33

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

trx: factor out TRX ctrl message submission

Extract TRX control message sending logic into
trx_ctrl_submit_msg() and reuse it from trx_ctrl_send()

This separates message construction from transport-specific
submission and prepares for alternative backends

No functional changes intended

Change-Id: Ibbd50117db4531efbc374e43e3802f9f995362cd

build: add WebSDR configure option and Emscripten detection

Detect Emscripten toolchain and introduce --with-websdr
configure option

When enabled, check for libosmo-trx-websdr and required
symbol modulateBits, failing configure if missing

Change-Id: Iff4b76e339e2873686c8c15885dd498458ceb546

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

build: make sched_* usage optional

Add configure checks for sched_* APIs and guard usage of
sched_setscheduler with HAVE_SCHED_SETSCHEDULER.

This avoids build/runtime issues on platforms without
scheduler support.

Change-Id: I5af357c1e2074fa1e05ac6bc20af8535c474d906

trx: factor out burst submission into helper

Extract TRXD burst submission logic from bts_sched_flush_buffers()
into trx_sched_submit_bursts()

No functional changes intended, this prepares for alternative
backends reusing the same scheduling logic

Change-Id: I7ce61bee4ca7ca50ef190982f1a0e4ce57c8c838

build: make timerfd usage optional

Check for sys/timerfd.h in configure and guard its usage
with HAVE_SYS_TIMERFD_H.

This avoids build failures on platforms where timerfd is
not available.

Change-Id: Id5a700c865f984e8f99199a1e365bb7f1462030a

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

vty: fix osmo_cpu_sched_vty_init() prototype

Change return type of osmo_cpu_sched_vty_init() from void to int
to match its implementation.

This fixes a prototype mismatch rejected by stricter compilers
(e.g. Emscripten).

Change-Id: Ia86e8063178ad82de098c2ff693cfbcd7e9f2192

vty: make CPU scheduling optional based on platform support

Add configure checks for sched_* APIs and guard their usage
in cpu_sched_vty with HAVE_SCHED_* macros.

If scheduler functions are not available, return -ENOTSUP
instead of failing at build time.

This improves portability on platforms lacking full sched
support (e.g. non-Linux or restricted environments).

Change-Id: Ic5b7e39fac16531d370cb81f769ba87fef18cb81

vty: fix osmo_cpu_sched_vty_init() prototype

Change return type of osmo_cpu_sched_vty_init() from void to int
to match its implementation.

This fixes a prototype mismatch rejected by stricter compilers
(e.g. Emscripten).

Change-Id: Ia86e8063178ad82de098c2ff693cfbcd7e9f2192

vty: make CPU scheduling optional based on platform support

Add configure checks for sched_* APIs and guard their usage
in cpu_sched_vty with HAVE_SCHED_* macros.

If scheduler functions are not available, return -ENOTSUP
instead of failing at build time.

This improves portability on platforms lacking full sched
support (e.g. non-Linux or restricted environments).

Change-Id: Ic5b7e39fac16531d370cb81f769ba87fef18cb81

vty: fix osmo_cpu_sched_vty_init() prototype

Change return type of osmo_cpu_sched_vty_init() from void to int
to match its implementation.

This fixes a prototype mismatch rejected by stricter compilers
(e.g. Emscripten).

Change-Id: Ia86e8063178ad82de098c2ff693cfbcd7e9f2192

vty: make CPU scheduling optional based on platform support

Add configure checks for sched_* APIs and guard their usage
in cpu_sched_vty with HAVE_SCHED_* macros.

If scheduler functions are not available, return -ENOTSUP
instead of failing at build time.

This improves portability on platforms lacking full sched
support (e.g. non-Linux or restricted environments).

Change-Id: Ic5b7e39fac16531d370cb81f769ba87fef18cb81

rspro_util: asn1 decode: fix memleak when decoding fails

Change-Id: I071343d0134dbffb1bb71ea26a5b514be1b5bb27

rspro_util: asn1 decode: fix memleak when decoding fails

Change-Id: I071343d0134dbffb1bb71ea26a5b514be1b5bb27

Fix: Prevent bankd from exiting upon SIGPIPE

If a client disconnects from a worker thread while the worker is
responding to a to a request from that client, the socket is closed and
SIGPIPE is sent to the worker, causing the application to exit.

To prevent this, all workers have a dummy handler to prevent this. Now
the worker can handle the closing of the socket.

Change-Id: I13d6e9da48d12f93c00bd2d021789bde71aca7cf

Fix: Prevent bankd from exiting upon SIGPIPE

If a client disconnects from a worker thread while the worker is
responding to a to a request from that client, the socket is closed and
SIGPIPE is sent to the worker, causing the application to exit.

To prevent this, all workers have a dummy handler to prevent this. Now
the worker can handle the closing of the socket.

Change-Id: I13d6e9da48d12f93c00bd2d021789bde71aca7cf

Remove unconditional assignment of asn_debug = 0

It is now the default and there is no code to set it.
Remove the assignment

Change-Id: I114e9773a1d0aa3c16990a946cf91c69b9c2498a

asn1: move asn_debug into librspro

To allow compiling the asn code with `-DEMIT_ASN_DEBUG=1`.
Otherwise it will fail with an unresolved symbol because
librspro is compiled as shared-object.
Further initialize it as disable (0).

Change-Id: Icb03e8905f3b38ecebfcf294727a01f994511cce

Remove unconditional assignment of asn_debug = 0

It is now the default and there is no code to set it.
Remove the assignment

Change-Id: I114e9773a1d0aa3c16990a946cf91c69b9c2498a

asn1: move asn_debug into librspro

To allow compiling the asn code with `-DEMIT_ASN_DEBUG=1`.
Otherwise it will fail with an unresolved symbol because
librspro is compiled as shared-object.
Further initialize it as disable (0).

Change-Id: Icb03e8905f3b38ecebfcf294727a01f994511cce

asn1: move asn_debug into librspro

To allow compiling the asn code with `-DEMIT_ASN_DEBUG=1`.
Otherwise it will fail with an unresolved symbol because
librspro is compiled as shared-object.
Further initialize it as disable (0).

Change-Id: Icb03e8905f3b38ecebfcf294727a01f994511cce

rspro_util: asn1 decode: fix memleak when decoding fails

Change-Id: I071343d0134dbffb1bb71ea26a5b514be1b5bb27

asn1: ber_decoder: disable stack size check on ctx = NULL

The stack size check is triggering when using asan or
when compile with -O1.
It is unclear why this is problematic.
This is a not a leak.

Related: OS#7002
Change-Id: Id99531f62ccdf73497bb08483ca6adbabe1a7cd7

asn1: move asn_debug into librspro

To allow compiling the asn code with `-DEMIT_ASN_DEBUG=1`.
Otherwise it will fail with an unresolved symbol because
librspro is compiled as shared-object.
Further initialize it as disable (0).

Change-Id: Icb03e8905f3b38ecebfcf294727a01f994511cce

Remove unconditional assignment of asb_debug = 0

It is now the default and there is no code to set it.
Remove the assignment

Change-Id: I114e9773a1d0aa3c16990a946cf91c69b9c2498a

Remove unconditional assignment of asb_debug = 0

It is now the default and there is no code to set it.
Remove the assignment

Change-Id: I114e9773a1d0aa3c16990a946cf91c69b9c2498a

asn1: ber_decoder: disable stack size check on ctx = NULL

The stack size check is triggering when using asan or
when compile with -O1.
It is unclear why this is problematic.
This is a not a leak.

Related: OS#7002
Change-Id: Id99531f62ccdf73497bb08483ca6adbabe1a7cd7

rspro_util: asn1 decode: fix memleak when decoding fails

Change-Id: I071343d0134dbffb1bb71ea26a5b514be1b5bb27

Fix: Prevent race conditions when accessing slotmap in bankd

All threads (main and workers) can use slotmap_by_bank() and
slotmap_by_client() to get a mapping entry from the slot map. While
working with this entry (reading values), it could be deleted by a
different thread.

For example, if a client connects to a worker, the worker will check if
there is an existing mapping between a reader and this client. If it
exists, slotmap_by_client() will return a pointer. If the mapping is
deleted at this time by the server, the worker uses a pointer to a
mapping entry that has just been freed.

Change-Id: I3464726f37beb7c47b4e1f00c018ffa4f3948906

Fix: Prevent bankd from exiting upon SIGPIPE

If a client disconnects from a worker thread while the worker is
responding to a to a request from that client, the socket is closed and
SIGPIPE is sent to the worker, causing the application to exit.

To prevent this, all workers have a dummy handler to prevent this. Now
the worker can handle the closing of the socket.

Change-Id: I13d6e9da48d12f93c00bd2d021789bde71aca7cf

Fix: Remove slot mapping at bankd when client disconnects

If a client disconnects before removing the slot mapping, the worker
must undefine its 'bank_id' and 'slot_nr' and must change its state to
'UNMAPPED'.

send_signal_to_worker() searches for a worker that has a given bank and
slot. If a client re-connects to a different worker and if the bank and
slot would be still assigned to the old worker, the old worker could
receive signals when assigning or removing slot mapping. The new worker
would not be mapped.

Change-Id: I2fd03490e2506c55104309a0ef952389119023b8

Fix: Prevent bankd from exiting upon SIGPIPE

If a client disconnects from a worker thread while the worker is
responding to a to a request from that client, the socket is closed and
SIGPIPE is sent to the worker, causing the application to exit.

To prevent this, all workers have a dummy handler to prevent this. Now
the worker can handle the closing of the socket.

Change-Id: I13d6e9da48d12f93c00bd2d021789bde71aca7cf

Fix: Prevent race conditions when accessing slotmap in bankd

All threads (main and workers) can use slotmap_by_bank() and
slotmap_by_client() to get a mapping entry from the slot map. While
working with this entry (reading values), it could be deleted by a
different thread.

For example, if a client connects to a worker, the worker will check if
there is an existing mapping between a reader and this client. If it
exists, slotmap_by_client() will return a pointer. If the mapping is
deleted at this time by the server, the worker uses a pointer to a
mapping entry that has just been freed.

Change-Id: I3464726f37beb7c47b4e1f00c018ffa4f3948906

Fix: Remove slot mapping at bankd when client disconnects

If a client disconnects before removing the slot mapping, the worker
must undefine its 'bank_id' and 'slot_nr' and must change its state to
'UNMAPPED'.

send_signal_to_worker() searches for a worker that has a given bank and
slot. If a client re-connects to a different worker and if the bank and
slot would be still assigned to the old worker, the old worker could
receive signals when assigning or removing slot mapping. The new worker
would not be mapped.

Change-Id: I2fd03490e2506c55104309a0ef952389119023b8

Fix: Prevent bankd from exiting upon SIGPIPE

If a client disconnects from a worker thread while the worker is
responding to a to a request from that client, the socket is closed and
SIGPIPE is sent to the worker, causing the application to exit.

To prevent this, all workers have a dummy handler to prevent this. Now
the worker can handle the closing of the socket.

Change-Id: I13d6e9da48d12f93c00bd2d021789bde71aca7cf

Fix: Prevent bankd from exiting upon SIGPIPE

If a client disconnects from a worker thread while the worker is
responding to a to a request from that client, the socket is closed and
SIGPIPE is sent to the worker, causing the application to exit.

To prevent this, all workers have a dummy handler to prevent this. Now
the worker can handle the closing of the socket.

Change-Id: I13d6e9da48d12f93c00bd2d021789bde71aca7cf

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx, bts: add optional WebSDR backend (callback-based transport)

Introduce WebSDR backend enabled via ENABLE_WEBSDR,
adding an alternative callback-based transport alongside
existing socket-based TRX/OSMUX I/O

Implement:
- TRX control via osmotrxlib_process_command()
- TRXD data via apitrx_tx_call()/trx_data_read()
- clock handling via apibts_clock_ind() and external timers
- Osmux integration via ws_osmux_* helpers

Adapt scheduler to support API-based burst submission and
external timer callbacks in WebSDR mode

Disable signal handling, stats and socket I/O when building
with ENABLE_WEBSDR

Add WebSDR API entrypoint, Emscripten build target and
example configuration

Enables running BTS/TRX stack in WebAssembly environments

Change-Id: Idebd588f33afd85021813ad5821391781db683a9

build: make linux/if_packet.h usage optional

Check for presence of linux/if_packet.h in configure and
guard its usage with HAVE_LINUX_IF_PACKET_H.

This avoids build failures on non-Linux platforms or
environments where the header is unavailable.

Change-Id: I8a02b0676e65fa4b6191073c84e0646a2e67a010

trx: factor out TRXD data submission helper

Extract TRXD data sending into trx_data_submit_msg() and
reuse it from trx_if_send_burst()

This separates transport-specific I/O from message construction
and prepares for alternative backends

No functional changes intended

Change-Id: Ie89ac6efe2f5af0b4cbe5a259a18770b8d2de859

trx: split TRXD parsing from socket callback

Extract TRXD message parsing into trx_data_read() and
reuse it from trx_data_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I50ad8b6d2edfd91f2d569cd8badf5c036fbf87ed

trx: handle synchronous TRX control callbacks in provision FSM

Set *_sent flags before issuing TRX control commands to ensure
correct state when responses are delivered synchronously
(e.g. WebUSB callback path)

Also guard FSM state handling in st_open_poweroff() to avoid
duplicate transitions if state was already changed by a
synchronous response

No functional change for asynchronous (socket-based) backends

Change-Id: I50c95e3796839e9fe721bff6f96fed4c490c6018

bts: guard AMR RTP decoder stub with HAVE_LIBOSMOCODEC_STATIC

Disable dummy osmo_amr_rtp_dec() implementation when
linking against static libosmocodec to avoid symbol
conflicts

Apply to omldummy and virtual BTS models

Change-Id: Ie19ae2013893575a2f74a87af2151034abf57870

smux: allow lchan lookup without remote address

Make rem_addr optional in osmux_lchan_find() by skipping
address comparison when it is NULL

This allows callers without socket-based addressing to
locate lchans by CID only (e.g. callback-based transports)

Change-Id: I7a275dad2353241c7b04cdb5d6cc1436a175c1f3

trx: add JSON stats export for WebSDR API

Introduce stats_json.c providing JSON serialization for:
- stats and counters
- rate counters
- BTS state
- TRX/transceiver state
- WebSDR runtime metrics

Add osmobts_get_stats() API to expose these via WebSDR
interface and export it in Emscripten build

This enables programmatic access to data previously available
via VTY (e.g. "show stats", "show bts")

Change-Id: Ifb82adfab879a65ecd222c45e06551983aa90a0f

trx: split TRX ctrl response parsing from socket callback

Extract TRX control response parsing logic into
trx_ctrl_parse_rsp() and call it from trx_ctrl_read_cb()

This decouples parsing from socket I/O and allows reuse
with alternative transports

No functional changes intended

Change-Id: I255c7d554aad3ac6df2c66716fae1c1fb512110e

trx: factor out FN timer processing into common helper

Extract core FN timer handling logic into trx_fn_timer_process()
to decouple it from timerfd-specific code.

This allows reusing the same scheduling logic for alternative
timer backends (e.g. WebSDR) while keeping timerfd integration
as a thin wrapper.

No functional changes intended.

Change-Id: Ia28cce57afb3dc97c8655e855ebd5ace7e096648