flipperone-testing/scripts/forward-remote.py at dev · flipperdevices/flipperone-testing · GitHub

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#!/usr/bin/env python3

"""Forward ONLY the Flipper One d-pad + OK + Back keys to a uinput

clone on seat0. A filtered copy of forward-keys.py: same phys match

and passthrough, but every event that isn't one of the six allowed

navigation keys is dropped.

Used by the TV Media Box "Kodi remote" and "Adjust screen" popups,

where the d-pad / OK / Back must reach Kodi but the other keypad

keys (Tab, Esc, the app-button letters, …) must NOT.

Modes:

python3 forward-remote.py # filter + forward

python3 forward-remote.py grab # …and grab the source device

python3 forward-remote.py debug # print each key code, forward nothing

`debug` is the way to confirm the real hardware codes: run it, press

each button, and copy the reported codes into ALLOW_NAMES below if

they differ from these defaults.

"""

import sys

from evdev import InputDevice, UInput, list_devices, ecodes, categorize

WANT_PHYS = "flipper-one-input/input0" # Flipper One keypad

# The only keys we forward: d-pad + OK (Enter) + Back. Anything not

# resolvable on this evdev build is skipped. Edit via `debug` mode if

# the hardware reports different codes.

ALLOW_NAMES = [

"KEY_UP", "KEY_DOWN", "KEY_LEFT", "KEY_RIGHT", # d-pad 103/108/105/106

"KEY_ENTER", # OK 28

"KEY_BACKSPACE", # Back 14

]

ALLOW = {getattr(ecodes, n) for n in ALLOW_NAMES if hasattr(ecodes, n)}

def find_by_phys(want):

for path in list_devices():

try:

dev = InputDevice(path)

except OSError:

continue

if dev.phys == want:

return dev

dev.close()

return None

def run_debug(src):

print(f"debug: {src.path} (phys {src.phys}) — press keys, Ctrl-C to quit")

try:

for ev in src.read_loop():

if ev.type == ecodes.EV_KEY:

k = categorize(ev)

print(f" code={ev.code:<4} {k.keycode} value={ev.value}")

except KeyboardInterrupt:

pass

finally:

src.close()

def main():

args = sys.argv[1:]

grab = "grab" in args

debug = "debug" in args

phys = next((a for a in args if a not in ("grab", "debug")), WANT_PHYS)

src = find_by_phys(phys)

if src is None:

sys.exit(f"no input device with phys '{phys}'")

if debug:

run_debug(src)

return

# Virtual device advertises ONLY the allowed keys, so seat0 sees a

# tidy 6-key remote rather than a full keyboard clone.

ui = UInput({ecodes.EV_KEY: sorted(ALLOW)}, name="flipper-remote",

vendor=src.info.vendor, product=src.info.product,

version=src.info.version, bustype=src.info.bustype)

print(f"forwarding {src.path} (phys {src.phys}) -> seat0 "

f"[remote: {','.join(ALLOW_NAMES)}]" + (" [grabbed]" if grab else ""))

if grab:

src.grab()

try:

for ev in src.read_loop():

if ev.type == ecodes.EV_SYN:

ui.write_event(ev) # keep frame boundaries

elif ev.type == ecodes.EV_KEY and ev.code in ALLOW:

ui.write_event(ev) # allowed nav key

# everything else (Esc, Tab, letters, MSC scan, …) is dropped

except KeyboardInterrupt:

pass

finally:

if grab:

try:

src.ungrab()

except Exception:

pass

ui.close()

src.close()

if __name__ == "__main__":

main()

flipperone-testing/scripts/forward-remote.py at dev · flipperdevices/flipperone-testing · GitHub

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