Vendor dependencies and resources for standalone builds

Keep official openpilot ancestry and dependency licenses. Store resources directly in Git, remove LFS setup requirements, and leave the downloadable big model outside the source tree.

panda/python/base.py

@@ -0,0 +1,61 @@
+from abc import ABC, abstractmethod
+
+from .constants import McuType
+
+TIMEOUT = int(15 * 1e3)  # default timeout, in milliseconds
+
+class BaseHandle(ABC):
+  """
+    A handle to talk to a panda.
+    Borrows heavily from the libusb1 handle API.
+  """
+
+  @abstractmethod
+  def close(self) -> None:
+    ...
+
+  @abstractmethod
+  def controlWrite(self, request_type: int, request: int, value: int, index: int, data, timeout: int = TIMEOUT, expect_disconnect: bool = False):
+    ...
+
+  @abstractmethod
+  def controlRead(self, request_type: int, request: int, value: int, index: int, length: int, timeout: int = TIMEOUT) -> bytes:
+    ...
+
+  @abstractmethod
+  def bulkWrite(self, endpoint: int, data: bytes, timeout: int = TIMEOUT) -> int:
+    ...
+
+  @abstractmethod
+  def bulkRead(self, endpoint: int, length: int, timeout: int = TIMEOUT) -> bytes:
+    ...
+
+
+class BaseSTBootloaderHandle(ABC):
+  """
+    A handle to talk to a panda while it's in the STM32 bootloader.
+  """
+
+  @abstractmethod
+  def get_mcu_type(self) -> McuType:
+    ...
+
+  @abstractmethod
+  def close(self) -> None:
+    ...
+
+  @abstractmethod
+  def clear_status(self) -> None:
+    ...
+
+  @abstractmethod
+  def program(self, address: int, dat: bytes) -> None:
+    ...
+
+  @abstractmethod
+  def erase_sector(self, sector: int) -> None:
+    ...
+
+  @abstractmethod
+  def jump(self, address: int) -> None:
+    ...