Merge branch 'master' into toyota-bsm

* models: download whole-file artifacts with parallel byte ranges

HuggingFace's Xet CAS throttles each connection to roughly 1-2 MB/s but does
not limit connection count, so the single-stream _download_file left the link
idle most of the time. Replace it with a downloader that probes the size with
a one-byte Range request, creates the file at its final size and streams each
8 MB piece straight to its offset from one of 12 worker threads. The file is
never copied or assembled and only ever occupies its own size on disk. A
server that answers the probe with 200 gets one plain stream instead.
Every request sends Accept-Encoding: identity, because byte ranges count
encoded bytes while requests hands back decoded ones, so a compressed
response would land at the wrong offsets and fail as a short read.

Workers only write bytes; a reporter coroutine on the event loop publishes
progress every 0.5 s (instead of every 128 KB), re-raises the first worker
failure and polls the cancel ref. Transient errors (connection, timeout,
truncated body, HTTP 408/429/500/502/503/504) give a piece up to three
attempts; any other HTTP error fails the download at once. The whole-file
path now also publishes "verifying" while hashing before and after the
transfer, and the download is hashed against the manifest exactly as before.

A cancel has to wait for in-flight pieces to unwind (a blocked socket read
cannot be interrupted), so the row shows "canceling..." through a new
DownloadProgress.canceling flag instead of a frozen bar, and the mici cancel
button hides once the ref is gone, as it already does on the big UI.

DownloadProgress gains speed, canceling and resuming, appended to the capnp so
older readers are unaffected. All three are declared here so the wire format
lands in one place; speed and resuming are filled in by the follow-up speed
and resume changes.

Builds on #2050, which drops chunking and publishes models as whole files;
this makes that whole-file download parallel.

Measured on a comma 3X on WiFi: ~2 MB/s single stream, 17-24 MB/s steady and
30-60 MB/s peak with 12 range connections, the count picked from an on-device
sweep. Disk is not the bottleneck (eMMC writes at 56-67 MB/s with fdatasync).

Tests drive the real downloader against a local threaded range server: piece
tiling, actual parallelism (a stalled piece does not block the others), the
no-range fallback, per-piece retry, 4xx, cancel via ModelManager_DownloadRef
and mid-piece, verify/cached/downloaded state, a probe failure moving
past verifying, and hash mismatch cleanup.

Also drops two chunk-era leftovers in the tests: a stale "no chunks" note on
manifest_bundle and a one-item URL loop in the live manifest check.

Assisted-by: Claude Code (Claude Opus 4.8)
Assisted-by: Claude Code (Claude Opus 5.5)

* remove unneeded comments

* models: trim the manager tests to the regressions they catch

Each remaining test is there because a deliberate break in manager.py,
helpers.py or fetcher.py fails it. Tests that only re-checked what another
already catches are merged into a happy-path download or a table, and
checks of constants rather than behaviour are dropped. The fake server
now starts per test, keeps its state in one dataclass, and can cut a
response short.

Against 66 deliberate breaks, every one the old tests caught still fails,
and a 404 being retried, a short read and its retry, and the display
flags choosing the big model without a GPU are now caught too.

Assisted-by: Claude Code (Claude Opus 5.5)

* Update test_manager_download.py

* Update manager.py

---------

Co-authored-by: James Vecellio-Grant <159560811+Discountchubbs@users.noreply.github.com>

.gitmodules

@@ -4,6 +4,7 @@
 [submodule "opendbc"]
   path = opendbc_repo
   url = https://github.com/sunnypilot/opendbc.git
+  branch = toyotabsmhack
 [submodule "msgq"]
   path = msgq_repo
   url = https://github.com/sunnypilot/msgq.git

openpilot/cereal/custom.capnp

@@ -138,6 +138,9 @@ struct ModelManagerSP @0xaedffd8f31e7b55d {
     status @0 :DownloadStatus;
     progress @1 :Float32;
     eta @2 :UInt32;
+    speed @3 :Float32;
+    canceling @4 :Bool;
+    resuming @5 :Bool;
   }
 
   struct Chunk {

openpilot/common/params_keys.h

@@ -246,6 +246,7 @@ inline static std::unordered_map<std::string, ParamKeyAttributes> keys = {
     {"TeslaMadsScreenButton", {PERSISTENT | BACKUP, INT, "0"}},
     {"ToyotaEnforceStockLongitudinal", {PERSISTENT | BACKUP, BOOL, "0"}},
     {"ToyotaStopAndGoHack", {PERSISTENT | BACKUP, BOOL, "0"}},
+    {"ToyotaEnhancedBsm", {PERSISTENT | BACKUP, BOOL, "0"}},
 
     {"BlindSpot", {PERSISTENT | BACKUP, BOOL, "0"}},
 

openpilot/selfdrive/ui/sunnypilot/layouts/settings/models.py

@@ -235,6 +235,8 @@ class ModelsLayout(Widget):
     progress = sum(p.progress for p in progresses) / len(progresses)
     ds = custom.ModelManagerSP.DownloadStatus
 
+    if any(p.canceling for p in progresses):
+      return {"name": name, "downloading": True, "progress": progress, "status_text": tr("canceling...")}
     if ds.failed in statuses:
       # close.png is authored black and a tint cannot lift it, hence close2
       return {"name": name, "status_text": tr("download failed"), "text_color": rl.RED, "icon": "icons/close2.png"}

openpilot/selfdrive/ui/sunnypilot/layouts/settings/vehicle/brands/toyota.py

@@ -4,6 +4,8 @@ Copyright (c) 2021-, Haibin Wen, sunnypilot, and a number of other contributors.
 This file is part of sunnypilot and is licensed under the MIT License.
 See the LICENSE.md file in the root directory for more details.
 """
+from opendbc.car.toyota.values import ToyotaFlags
+from opendbc.sunnypilot.car.toyota.values import ToyotaFlagsSP
 from openpilot.selfdrive.ui.sunnypilot.layouts.settings.vehicle.brands.base import BrandSettings
 from openpilot.selfdrive.ui.ui_state import ui_state
 from openpilot.system.ui.lib.application import gui_app
@@ -15,6 +17,10 @@ from openpilot.system.ui.sunnypilot.widgets.list_view import toggle_item_sp
 
 ONROAD_ONLY_DESCRIPTION = tr_noop("Start the vehicle to check vehicle compatibility.")
 SNG_HACK_UNAVAILABLE = tr_noop("sunnypilot Longitudinal Control must be available and enabled for your vehicle to use this feature.")
+BSM_UNAVAILABLE = tr_noop("Enhanced Blind Spot Monitoring requires a TSS2 Toyota/Lexus without SecOC.")
+BSM_STOCK_LONG_UNAVAILABLE = tr_noop("Enhanced Blind Spot Monitoring is not available while Enforce Factory Longitudinal Control is enabled.")
+BSM_REQUIRED = tr_noop("This vehicle does not report blind spot status over the standard CAN signals. " +
+                        "Enhanced Blind Spot Monitoring is required for blind spot detection.")
 
 DESCRIPTIONS = {
   'enforce_stock_longitudinal': tr_noop(
@@ -23,6 +29,10 @@ DESCRIPTIONS = {
   'stop_and_go_hack': tr_noop(
     'sunnypilot will allow some Toyota/Lexus cars to auto resume during stop and go traffic. ' +
     'This feature is only applicable to certain models that are able to use longitudinal control. This is an alpha feature. Use at your own risk.'
+  ),
+  'enhanced_bsm': tr_noop(
+    'sunnypilot will poll the blind spot monitor diagnostics directly from the radar. Use this on vehicles whose blind spot monitors ' +
+    'do not report blind spot status over the standard CAN signals. This is an alpha feature. Use at your own risk.'
   )
 }
 
@@ -47,9 +57,18 @@ class ToyotaSettings(BrandSettings):
       enabled=lambda: not ui_state.engaged,
     )
 
+    self.enhanced_bsm = toggle_item_sp(
+      lambda: tr("Enhanced Blind Spot Monitoring (Alpha)"),
+      description=lambda: tr(DESCRIPTIONS["enhanced_bsm"]),
+      initial_state=ui_state.params.get_bool("ToyotaEnhancedBsm"),
+      callback=self._on_enable_enhanced_bsm,
+      enabled=lambda: not ui_state.engaged,
+    )
+
     self.items = [
       self.enforce_stock_longitudinal,
       self.stop_and_go_hack,
+      self.enhanced_bsm,
     ]
 
   def _on_enable_enforce_stock_longitudinal(self, state: bool):
@@ -94,6 +113,25 @@ class ToyotaSettings(BrandSettings):
       ui_state.params.put_bool("ToyotaStopAndGoHack", False)
       ui_state.params.put_bool("OnroadCycleRequested", True)
 
+  def _on_enable_enhanced_bsm(self, state: bool):
+    if state:
+      def confirm_callback(result: int):
+        if result == DialogResult.CONFIRM:
+          ui_state.params.put_bool("ToyotaEnhancedBsm", True)
+          ui_state.params.put_bool("OnroadCycleRequested", True)
+        else:
+          self.enhanced_bsm.action_item.set_state(False)
+
+      content = (f"<h1>{self.enhanced_bsm.title}</h1><br>" +
+                 f"<p>{self.enhanced_bsm.description}</p>")
+
+      dlg = ConfirmDialog(content, tr("Enable"), rich=True, callback=confirm_callback)
+      gui_app.push_widget(dlg)
+
+    else:
+      ui_state.params.put_bool("ToyotaEnhancedBsm", False)
+      ui_state.params.put_bool("OnroadCycleRequested", True)
+
   def update_settings(self):
     if ui_state.CP is not None:
       longitudinal = ui_state.CP.openpilotLongitudinalControl
@@ -113,9 +151,36 @@ class ToyotaSettings(BrandSettings):
         self.stop_and_go_hack.set_description(new_desc)
         if show_desc:
           self.stop_and_go_hack.show_description(True)
+
+      # Enhanced BSM needs the radar diagnostic address, which is only in the TX allowlist for
+      # TSS2 cars without SecOC that are not enforcing factory longitudinal control
+      bsm_supported = bool(ui_state.CP.flags & ToyotaFlags.TSS2) and not bool(ui_state.CP.flags & ToyotaFlags.SECOC)
+      bsm_available = bsm_supported and not enforce_stock
+      self.enhanced_bsm.action_item.set_enabled(bsm_available and not ui_state.engaged)
+
+      bsm_desc = tr(DESCRIPTIONS["enhanced_bsm"])
+      if not bsm_supported:
+        self.enhanced_bsm.action_item.set_state(False)
+        bsm_desc = "<b>" + tr(BSM_UNAVAILABLE) + "</b>\n\n" + bsm_desc
+      elif enforce_stock:
+        self.enhanced_bsm.action_item.set_state(False)
+        bsm_desc = "<b>" + tr(BSM_STOCK_LONG_UNAVAILABLE) + "</b>\n\n" + bsm_desc
+      elif ui_state.CP_SP is not None and ui_state.CP_SP.flags & ToyotaFlagsSP.SP_NEED_DEBUG_BSM:
+        bsm_desc = "<b>" + tr(BSM_REQUIRED) + "</b>\n\n" + bsm_desc
+
+      if self.enhanced_bsm.description != bsm_desc:
+        self.enhanced_bsm.set_description(bsm_desc)
+        if not bsm_available:
+          self.enhanced_bsm.show_description(True)
     else:
       self.stop_and_go_hack.action_item.set_enabled(False)
       new_desc = "<b>" + tr(ONROAD_ONLY_DESCRIPTION) + "</b>\n\n" + tr(DESCRIPTIONS["stop_and_go_hack"])
       if self.stop_and_go_hack.description != new_desc:
         self.stop_and_go_hack.set_description(new_desc)
         self.stop_and_go_hack.show_description(True)
+
+      self.enhanced_bsm.action_item.set_enabled(False)
+      bsm_desc = "<b>" + tr(ONROAD_ONLY_DESCRIPTION) + "</b>\n\n" + tr(DESCRIPTIONS["enhanced_bsm"])
+      if self.enhanced_bsm.description != bsm_desc:
+        self.enhanced_bsm.set_description(bsm_desc)
+        self.enhanced_bsm.show_description(True)

openpilot/selfdrive/ui/sunnypilot/mici/layouts/models.py

@@ -251,11 +251,12 @@ class ModelsLayoutMici(NavScroller):
       self.current_model_info.info_text.set_text(tr("download failed"))
 
     elif manager.selectedBundle and manager.selectedBundle.status == custom.ModelManagerSP.DownloadStatus.downloading:
-      self.cancel_download_btn.set_visible(True)
+      self.cancel_download_btn.set_visible(ui_state.params.get("ModelManager_DownloadRef") is not None)
       device.set_override_interactive_timeout(5)
       progress = 0.0
       count = 0
       verifying = False
+      canceling = False
       for model in manager.selectedBundle.models:
         count += 1
         p = model.artifact.downloadProgress
@@ -263,11 +264,13 @@ class ModelsLayoutMici(NavScroller):
                         custom.ModelManagerSP.DownloadStatus.verifying):
           progress += p.progress
           verifying = verifying or p.status == custom.ModelManagerSP.DownloadStatus.verifying
+          canceling = canceling or p.canceling
         elif p.status in (custom.ModelManagerSP.DownloadStatus.downloaded,
                           custom.ModelManagerSP.DownloadStatus.cached):
           progress += 100.0
 
-      self.current_model_info.current_model_header.set_text(tr("verifying") if verifying else tr("downloading"))
+      header = tr("canceling...") if canceling else tr("verifying") if verifying else tr("downloading")
+      self.current_model_info.current_model_header.set_text(header)
       self.cancel_download_btn.set_text(tr("cancel verification") if verifying else tr("cancel download"))
       self.current_model_info.current_model_header._shimmer = True
       name_text = manager.selectedBundle.internalName.lower()

openpilot/sunnypilot/models/manager.py

@@ -7,7 +7,10 @@ See the LICENSE.md file in the root directory for more details.
 
 import asyncio
 import os
+import re
+import threading
 import time
+from concurrent.futures import ThreadPoolExecutor
 
 import requests
 from openpilot.common.params import Params
@@ -22,12 +25,99 @@ from openpilot.sunnypilot.models.helpers import (ACTIVE_BUNDLE_KEYS, get_active_
 
 # (connect, read) seconds. read is per-request inactivity, not a total cap
 DOWNLOAD_TIMEOUT = (30, 30)
+# HuggingFace throttles each connection to ~1-2 MB/s but not the connection count; 12 saturates the device link
+MAX_CONCURRENT_PIECES = 12
+PIECE_SIZE = 8 * 1024 * 1024
+PIECE_ATTEMPTS = 3
+PIECE_BACKOFF = 1.0  # seconds, growing linearly: waits 1 s then 2 s between a piece's three attempts
+TRANSIENT_HTTP_STATUS = frozenset({408, 429, 500, 502, 503, 504})
+REPORT_INTERVAL = 0.5  # seconds between progress publications
+# byte ranges count encoded bytes but iter_content yields decoded ones, so ask for an unencoded body
+NO_COMPRESSION = {"Accept-Encoding": "identity"}
 
 
 class DownloadCancelled(Exception):
   pass
 
 
+def _is_transient(e: BaseException) -> bool:
+  if isinstance(e, requests.HTTPError):
+    return e.response is not None and e.response.status_code in TRANSIENT_HTTP_STATUS
+  return isinstance(e, (requests.ConnectionError, requests.Timeout, requests.exceptions.ChunkedEncodingError))
+
+
+class _Progress:
+  def __init__(self):
+    self._bytes = 0
+    self._lock = threading.Lock()
+
+  def add_bytes(self, n: int) -> None:
+    with self._lock:
+      self._bytes += n
+
+  def snapshot(self) -> int:
+    with self._lock:
+      return self._bytes
+
+
+def _piece_ranges(total: int, piece_size: int) -> list[tuple[int, int]]:
+  return [(start, min(start + piece_size, total)) for start in range(0, total, piece_size)]
+
+
+def _prepare_target(path: str, total: int) -> None:
+  with open(path, "wb") as f:
+    f.truncate(total)
+
+
+def _content_range_total(response: requests.Response) -> int | None:
+  if response.status_code != 206:
+    return None
+  match = re.fullmatch(r"bytes \d+-\d+/(\d+)", response.headers.get("Content-Range", ""))
+  return int(match.group(1)) if match else None
+
+
+def _probe_size(url: str) -> tuple[int, bool]:
+  with requests.get(url, headers={**NO_COMPRESSION, "Range": "bytes=0-0"}, stream=True, timeout=DOWNLOAD_TIMEOUT) as response:
+    response.raise_for_status()
+    total = _content_range_total(response)
+    if total is not None:
+      return total, True
+    return int(response.headers.get("Content-Length", 0)), False
+
+
+def _fetch_piece(url: str, path: str, index: int, start: int, end: int | None, progress: _Progress,
+                 cancel: threading.Event, block_size: int) -> None:
+  headers = {**NO_COMPRESSION, "Range": f"bytes={start}-{end - 1}"} if end is not None else NO_COMPRESSION
+  label = f"{os.path.basename(path)} piece {index}"
+  for attempt in range(PIECE_ATTEMPTS):
+    written = 0
+    try:
+      with requests.get(url, headers=headers, stream=True, timeout=DOWNLOAD_TIMEOUT) as response:
+        response.raise_for_status()
+        if end is not None and response.status_code != 206:
+          raise ValueError(f"server ignored byte range for {label}")
+        with open(path, "r+b") as f:
+          f.seek(start)
+          for block in response.iter_content(chunk_size=block_size):
+            if cancel.is_set():
+              raise DownloadCancelled("Download cancelled")
+            f.write(block)
+            written += len(block)
+            progress.add_bytes(len(block))
+          if end is None:
+            f.truncate()  # unknown length: the body defines the file size
+          if end is not None and written != end - start:
+            raise requests.exceptions.ConnectionError(f"short read: {written} of {end - start} bytes")
+      return
+    except requests.RequestException as e:
+      progress.add_bytes(-written)  # the piece restarts from scratch
+      if not _is_transient(e) or attempt == PIECE_ATTEMPTS - 1:
+        raise
+      cloudlog.warning(f"retrying {label} after {type(e).__name__}: {e}")
+      if cancel.wait(PIECE_BACKOFF * (1 + attempt)):
+        raise DownloadCancelled("Download cancelled") from None
+
+
 class ModelManagerSP:
   """Manages model downloads and status reporting"""
 
@@ -41,7 +131,7 @@ class ModelManagerSP:
     self.source_models: dict[str, list[custom.ModelManagerSP.ModelBundle]] = {}
     self.selected_bundle: custom.ModelManagerSP.ModelBundle = None
     self.active_bundle: custom.ModelManagerSP.ModelBundle = get_active_bundle(self.params, chestnut=self.chestnut_present)
-    self._chunk_size = 128 * 1000  # 128 KB chunks
+    self._block_size = 128 * 1000  # 128 KB network read blocks
     self._download_start_times: dict[str, float] = {}  # Track start time per model
     self._download_ref: bytes | str | None = None
 
@@ -56,7 +146,6 @@ class ModelManagerSP:
     self._download_ref = None
 
   def _sync_artifact_progress(self, source_artifact) -> None:
-    """Mirror download progress to all artifacts sharing the same filename in the selected bundle."""
     if not self.selected_bundle:
       return
     for model in self.selected_bundle.models:
@@ -67,7 +156,6 @@ class ModelManagerSP:
         artifact.downloadProgress.eta = source_artifact.downloadProgress.eta
 
   def _calculate_eta(self, filename: str, progress: float) -> int:
-    """Calculate ETA based on elapsed time and current progress"""
     if filename not in self._download_start_times or progress <= 0:
       return 60  # Default ETA for new downloads
 
@@ -75,39 +163,58 @@ class ModelManagerSP:
     if elapsed_time <= 0:
       return 60
 
-    # If we're at X% after Y seconds, we can estimate total time as (Y / X) * 100
     total_estimated_time = (elapsed_time / progress) * 100
     eta = total_estimated_time - elapsed_time
-
     return max(1, int(eta))  # Return at least 1 second if download is ongoing
 
-  async def _download_file(self, url: str, path: str, model) -> None:
-    """Downloads a file with progress tracking"""
-    self._download_start_times[model.fileName] = time.monotonic()
+  def _set_progress(self, artifact, status, progress: float, eta: int = 0) -> None:
+    artifact.downloadProgress.status = status
+    artifact.downloadProgress.progress = progress
+    artifact.downloadProgress.eta = eta
+    self._sync_artifact_progress(artifact)
+    self._report_status()
 
-    with requests.get(url, stream=True, timeout=DOWNLOAD_TIMEOUT) as response:  # noqa: ASYNC210
-      response.raise_for_status()
-      total_size = int(response.headers.get("content-length", 0))
-      bytes_downloaded = 0
+  def _publish_progress(self, artifact, done_bytes: int, total: int) -> None:
+    # held at 99 until the file passes its hash check
+    progress = min(99.0, done_bytes / total * 100) if total > 0 else 0.0
+    eta = self._calculate_eta(artifact.fileName, progress)
+    self._set_progress(artifact, custom.ModelManagerSP.DownloadStatus.downloading, progress, eta)
 
-      with open(path, 'wb') as f:  # noqa: ASYNC230
-        for chunk in response.iter_content(chunk_size=self._chunk_size):  # type: bytes
-          f.write(chunk)
-          bytes_downloaded += len(chunk)
+  async def _report_until_done(self, tasks: list[asyncio.Future], artifact, progress: _Progress, total: int) -> None:
+    pending = set(tasks)
+    while pending:
+      done, pending = await asyncio.wait(pending, timeout=REPORT_INTERVAL)
+      for task in done:
+        task.result()  # re-raises a worker failure
+      if self._download_interrupted():
+        raise DownloadCancelled("Download cancelled")
+      self._publish_progress(artifact, progress.snapshot(), total)
 
-          if self._download_interrupted():
-            raise DownloadCancelled("Download cancelled")
+  async def _download_file(self, url: str, path: str, artifact) -> None:
+    self._download_start_times[artifact.fileName] = time.monotonic()
+    loop = asyncio.get_running_loop()
 
-          if total_size > 0:
-            progress = (bytes_downloaded / total_size) * 100
-            model.downloadProgress.status = custom.ModelManagerSP.DownloadStatus.downloading
-            model.downloadProgress.progress = progress
-            model.downloadProgress.eta = self._calculate_eta(model.fileName, progress)
-            self._sync_artifact_progress(model)
-            self._report_status()
+    total, ranged = await loop.run_in_executor(None, _probe_size, url)
+    pieces: list[tuple[int, int | None]] = list(_piece_ranges(total, PIECE_SIZE)) if ranged else [(0, None)]
+    await loop.run_in_executor(None, _prepare_target, path, total)
+    progress = _Progress()
+    cancel = threading.Event()
 
-    # Clean up start time after download completes
-    del self._download_start_times[model.fileName]
+    with ThreadPoolExecutor(max_workers=MAX_CONCURRENT_PIECES) as pool:
+      tasks = [loop.run_in_executor(pool, _fetch_piece, url, path, i, start, end, progress, cancel, self._block_size)
+               for i, (start, end) in enumerate(pieces)]
+      try:
+        await self._report_until_done(tasks, artifact, progress, total)
+      except BaseException as e:
+        cancel.set()
+        if isinstance(e, DownloadCancelled):
+          artifact.downloadProgress.canceling = True
+          self._set_progress(artifact, custom.ModelManagerSP.DownloadStatus.downloading, artifact.downloadProgress.progress)
+        for task in tasks:
+          task.cancel()  # drops queued pieces; running ones see the event at their next block
+        await asyncio.gather(*tasks, return_exceptions=True)
+        raise
+    del self._download_start_times[artifact.fileName]
 
   async def _process_artifact(self, artifact, destination_path: str) -> None:
     if not artifact.downloadUri.uri:
@@ -119,33 +226,30 @@ class ModelManagerSP:
     expected_hash = artifact.downloadUri.sha256
     filename = artifact.fileName
     full_path = os.path.join(destination_path, filename)
+    status = custom.ModelManagerSP.DownloadStatus
+    artifact.downloadProgress.canceling = False
 
     try:
+      self._set_progress(artifact, status.verifying, 0)
       if await verify_file(full_path, expected_hash):
-        artifact.downloadProgress.status = custom.ModelManagerSP.DownloadStatus.cached
-        artifact.downloadProgress.progress = 100
-        artifact.downloadProgress.eta = 0
-        self._sync_artifact_progress(artifact)
-        self._report_status()
+        self._set_progress(artifact, status.cached, 100)
         return
 
+      self._set_progress(artifact, status.downloading, 0)
       await self._download_file(url, full_path, artifact)
+      self._set_progress(artifact, status.verifying, 99)
       if not await verify_file(full_path, expected_hash):
         raise ValueError(f"Hash validation failed for {filename}")
 
-      artifact.downloadProgress.status = custom.ModelManagerSP.DownloadStatus.downloaded
-      artifact.downloadProgress.progress = 100
-      artifact.downloadProgress.eta = 0
-      self._sync_artifact_progress(artifact)
-      self._report_status()
+      self._set_progress(artifact, status.downloaded, 100)
 
     except DownloadCancelled:
       self._download_start_times.pop(artifact.fileName, None)
-      artifact.downloadProgress.status = custom.ModelManagerSP.DownloadStatus.failed
+      artifact.downloadProgress.status = status.failed
       artifact.downloadProgress.eta = 0
       self._sync_artifact_progress(artifact)
       if self.selected_bundle:
-        self.selected_bundle.status = custom.ModelManagerSP.DownloadStatus.failed
+        self.selected_bundle.status = status.failed
       self._report_status()
       raise
 
@@ -153,11 +257,11 @@ class ModelManagerSP:
       cloudlog.error(f"Error downloading {filename}: {str(e)}")
       if os.path.isfile(full_path):  # noqa: ASYNC240
         os.remove(full_path)
-      artifact.downloadProgress.status = custom.ModelManagerSP.DownloadStatus.failed
+      artifact.downloadProgress.status = status.failed
       artifact.downloadProgress.eta = 0
       self._sync_artifact_progress(artifact)
       if self.selected_bundle:
-        self.selected_bundle.status = custom.ModelManagerSP.DownloadStatus.failed
+        self.selected_bundle.status = status.failed
       self._report_status()
       self._download_start_times.pop(artifact.fileName, None)
       raise
@@ -272,12 +376,7 @@ class ModelManagerSP:
         rk.keep_time()
 
   def clear_model_cache(self) -> None:
-    """
-    Clears the model cache directory of all files except those in the active model bundle.
-    """
-
-    # Get list of files used by both slots' selected bundles (either may become
-    # the truly active bundle depending on hardware availability)
+    """ Clears the model cache directory of all files except those in the active model bundle."""
     active_files = []
     for source in ACTIVE_BUNDLE_KEYS:
       if selected_bundle := get_selected_bundle(self.params, source):
@@ -285,7 +384,6 @@ class ModelManagerSP:
           if model.artifact.fileName:
             active_files.append(model.artifact.fileName)
 
-    # Remove all files except active ones
     model_dir = Paths.model_root()
     try:
       for filename in os.listdir(model_dir):

openpilot/sunnypilot/selfdrive/car/interfaces.py

@@ -126,6 +126,7 @@ def initialize_params(params) -> list[dict[str, Any]]:
   keys.extend([
     "ToyotaEnforceStockLongitudinal",
     "ToyotaStopAndGoHack",
+    "ToyotaEnhancedBsm",
   ])
 
   return [{k: params.get(k, return_default=True)} for k in keys]

openpilot/sunnypilot/sunnylink/capabilities.py

@@ -10,6 +10,7 @@ from openpilot.cereal import custom, messaging
 from opendbc.car.structs import car
 from opendbc.car.hyundai.values import CAR as HYUNDAI_CAR, UNSUPPORTED_LONGITUDINAL_CAR
 from opendbc.car.subaru.values import CAR as SUBARU_CAR, SubaruFlags
+from opendbc.car.toyota.values import CAR as TOYOTA_CAR, ToyotaFlags
 from opendbc.sunnypilot.car.interfaces import has_bsm
 from opendbc.sunnypilot.car.tesla.values import TeslaFlagsSP
 from openpilot.common.params import Params
@@ -43,6 +44,7 @@ CAPABILITY_FIELDS = (
   "device_type",
   "subaru_has_sng",
   "hyundai_alpha_long_available",
+  "toyota_enhanced_bsm_available",
 )
 
 CAPABILITY_LABELS: dict[str, str] = {
@@ -65,6 +67,7 @@ CAPABILITY_LABELS: dict[str, str] = {
   "device_type": "Device type",
   "subaru_has_sng": "Subaru Stop-and-Go available",
   "hyundai_alpha_long_available": "Hyundai Alpha Longitudinal available",
+  "toyota_enhanced_bsm_available": "Toyota Enhanced BSM available",
 }
 
 # Explicit defaults for non-boolean capability fields
@@ -111,6 +114,16 @@ def _resolve_brand_capabilities(caps: dict, bundle_platform: str, CP) -> None:
       caps["subaru_has_sng"] = not bool(CP.flags & (SubaruFlags.GLOBAL_GEN2 | SubaruFlags.HYBRID))
       caps["has_stop_and_go"] = caps["subaru_has_sng"]
 
+  elif brand == "toyota":
+    if bundle_platform:
+      try:
+        flags = TOYOTA_CAR[bundle_platform].config.flags
+        caps["toyota_enhanced_bsm_available"] = bool(flags & ToyotaFlags.TSS2) and not bool(flags & ToyotaFlags.SECOC)
+      except KeyError:
+        cloudlog.exception(f"capabilities: unknown toyota platform {bundle_platform!r}")
+    elif CP is not None:
+      caps["toyota_enhanced_bsm_available"] = bool(CP.flags & ToyotaFlags.TSS2) and not bool(CP.flags & ToyotaFlags.SECOC)
+
 
 def generate_capabilities(params: Params | None = None) -> dict:
   """Generate a SettingsCapabilities dict from CarParams + boolean params.

openpilot/sunnypilot/sunnylink/docs/README.md

@@ -156,7 +156,7 @@ The tables below describe the **compiled** `settings_ui.json` schema — what th
 
 **Enablement rules**: Grayed out (disabled) when rules fail. Frontend shows a contextual badge explaining why.
 
-**Capability fields** (referenced in rules): `has_longitudinal_control`, `has_icbm`, `icbm_available`, `torque_allowed`, `brand`, `pcm_cruise`, `alpha_long_available`, `steer_control_type`, `has_bsm`, `is_release`, `is_sp_release`, `is_development`, `tesla_has_vehicle_bus`, `has_stop_and_go`, `stock_longitudinal`
+**Capability fields** (referenced in rules): `has_longitudinal_control`, `has_icbm`, `icbm_available`, `torque_allowed`, `brand`, `pcm_cruise`, `alpha_long_available`, `steer_control_type`, `has_bsm`, `is_release`, `is_sp_release`, `is_development`, `tesla_has_vehicle_bus`, `has_stop_and_go`, `stock_longitudinal`, `toyota_enhanced_bsm_available`
 
 ---
 

openpilot/sunnypilot/sunnylink/settings_ui.json

@@ -2324,6 +2324,28 @@
               "equals": false
             }
           ]
+        },
+        {
+          "key": "ToyotaEnhancedBsm",
+          "widget": "toggle",
+          "needs_onroad_cycle": true,
+          "title": "Enhanced Blind Spot Monitoring (Alpha)",
+          "description": "sunnypilot will poll the blind spot monitor diagnostics directly from the radar. Use this on vehicles whose blind spot monitors do not report blind spot status over the standard CAN signals. This is an alpha feature. Use at your own risk.",
+          "enablement": [
+            {
+              "type": "not_engaged"
+            },
+            {
+              "type": "capability",
+              "field": "toyota_enhanced_bsm_available",
+              "equals": true
+            },
+            {
+              "type": "capability",
+              "field": "stock_longitudinal",
+              "equals": false
+            }
+          ]
         }
       ]
     }

openpilot/sunnypilot/sunnylink/settings_ui_src/pages/vehicle.yaml

@@ -101,3 +101,18 @@ sections:
     - type: param
       key: ToyotaEnforceStockLongitudinal
       equals: false
+  - key: ToyotaEnhancedBsm
+    widget: toggle
+    needs_onroad_cycle: true
+    title: Enhanced Blind Spot Monitoring (Alpha)
+    description: sunnypilot will poll the blind spot monitor diagnostics directly from the radar. Use this on vehicles whose
+      blind spot monitors do not report blind spot status over the standard CAN signals. This is an alpha feature. Use at
+      your own risk.
+    enablement:
+    - $ref: '#/macros/not_engaged'
+    - type: capability
+      field: toyota_enhanced_bsm_available
+      equals: true
+    - type: capability
+      field: stock_longitudinal
+      equals: false

openpilot/sunnypilot/sunnylink/tests/test_capabilities.py

@@ -69,12 +69,18 @@ class TestOpaquePerBrandFlags(OpenpilotTestCase):
   def test_hyundai_alpha_long_available_field_present(self):
     assert "hyundai_alpha_long_available" in CAPABILITY_FIELDS
 
+  def test_toyota_enhanced_bsm_available_field_present(self):
+    assert "toyota_enhanced_bsm_available" in CAPABILITY_FIELDS
+
   def test_subaru_has_sng_default_false(self, caps):
     assert caps["subaru_has_sng"] is False
 
   def test_hyundai_alpha_long_available_default_false(self, caps):
     assert caps["hyundai_alpha_long_available"] is False
 
+  def test_toyota_enhanced_bsm_available_default_false(self, caps):
+    assert caps["toyota_enhanced_bsm_available"] is False
+
 
 class TestCapabilitiesShape(OpenpilotTestCase):
   def test_all_fields_present(self, caps):

openpilot/sunnypilot/sunnylink/tests/test_settings_changes.py

@@ -207,6 +207,7 @@ class TestNotEngagedReplacement(OpenpilotTestCase):
     "AlphaLongitudinalEnabled",
     "ToyotaEnforceStockLongitudinal",
     "ToyotaStopAndGoHack",
+    "ToyotaEnhancedBsm",
   ], names=["key"])
   def test_offroad_only_replaced_with_not_engaged(self, schema, key):
     """These items should use not_engaged, not offroad_only."""

openpilot/sunnypilot/sunnylink/tests/test_settings_schema.py

@@ -286,6 +286,7 @@ class TestKnownVehicleSettings(OpenpilotTestCase):
     keys = {i["key"] for i in _brand_items(schema["vehicle_settings"].get("toyota"))}
     assert "ToyotaEnforceStockLongitudinal" in keys
     assert "ToyotaStopAndGoHack" in keys
+    assert "ToyotaEnhancedBsm" in keys
 
   def test_tesla_has_coop_steering(self, schema):
     keys = {i["key"] for i in _brand_items(schema["vehicle_settings"].get("tesla"))}

openpilot/system/ui/sunnypilot/widgets/download_status.py

@@ -57,7 +57,7 @@ class DownloadStatusAction(ItemAction):
     self.icon: str | None = None
     self.icon_color: rl.Color | None = None
     self._font = gui_app.font(FontWeight.NORMAL)
-    # raw progress arrives in steps, one per 128KB chunk the manager publishes
+    # raw progress arrives in steps, one per progress report from the manager
     self._progress = FirstOrderFilter(0.0, 0.5, 1 / gui_app.target_fps)
     # integrated per frame; (t * speed) % span jumps whenever the fill width changes
     self._sweep = 0.0