The Python program being run is in charge of keyboard events with the
gint module. Most programs don't care though, and simply let events
accumulate until the queue is full.
The async filter is able to receive events even when the queue is full.
However, it filtered only AC/ON presses, not releases, so the releases
were sent back to the driver to queue. This was impossible as the queue
was full, so the release was never recorded. This failure then repeated
at every tick, forever.
Since the key was never properly released, further presses were just
seen as a continuation of the current press and thus did not produce
any new event, so the async filter was no longer called and the Python
program could no longer be interrupted.
Adds a file browser (selected files are not loaded yet) and a shell
widget with an input system that is still better than the previous
VT-100 emulation scheme (with locked modifiers mainly).
A lot of small things still need to be done to make the UI functional.
This is necessary to access sites that only support these protocols.
The rp2 port already has ECDH enabled, so this just adds ECDSA there. The
other ports now gain both ECDH and ECDSA. The code size increase is:
- rp2 (PICO_W): +2916 bytes flash, +24 bytes BSS
- stm32 (PYBD_SF6): +20480 bytes flash, +32 bytes data, +48 bytes BSS
- mimxrt (TEENSY41): +20708 bytes flash, +32 bytes data, +48 bytes BSS
- unix (standard x86-64): +39344 executable, +1744 bytes data, +96 BSS
This is obviously a large increase in code size. But there doesn't seem to
be any other option because without elliptic curve cryptography devices are
partially cut off from the internet. For use cases that require small
firmware size, they'll need to build custom firmware with a custom mbedtls
config.
Signed-off-by: Damien George <damien@micropython.org>
The following multi-tests pass (eg with PYBD_SF6+LEGO_HUB_NO6):
ble_gap_advertise.py
ble_gap_connect.py
ble_gap_device_name.py
ble_gattc_discover_services.py
ble_gatt_data_transfer.py
perf_gatt_char_write.py
perf_gatt_notify.py
stress_log_filesystem.py
These are the same tests that passed prior to this BTstack update.
Also tested on the unix port using H4 transport.
Signed-off-by: Damien George <damien@micropython.org>