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Jonathan BennettandClaude Opus 5.5
dbc7daecc6
* feat(portduino): Adafruit Arcade Bonnet input driver
Add an InputBroker source for the Adafruit Arcade Bonnet: six buttons
(1A-1F) and a 4-way joystick on an MCP23017 I2C expander.
The expander is polled over I2C every 20 ms rather than serviced from its
interrupt line, because the bonnet ties INT to GPIO17, which is the HUB75
clock on the adafruit-hat mapping. The driver sets INT to open-drain and
enables no interrupt sources so the line never drives against the panel.
Buttons emit once per press and carry a gamepad button code in kbchar
(1E = BTN_SELECT, 1F = BTN_START, so Start pauses games). The joystick
emits directions with the same auto-repeat as LinuxJoystick. The analog
stick bits are ignored; they float with no stick attached.
Config:
Input:
ArcadeBonnet: 0x26
ArcadeBonnetButtons: # optional
select: [1A, 1F]
cancel: 1B
--check validates both keys. The action-name parser moves from
LinuxJoystick.cpp to InputBroker.h so both drivers share it.
Breakout now polls the bonnet joystick's held direction the same way it
polls the USB gamepad, so the paddle glides instead of stepping at the
auto-repeat rate.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018vaqwGPoD64pqsnPYbvnUn
* fix(portduino): Arcade Bonnet buttons act in games; address review
1F reported BTN_START, which GamesModule treats as pause, so a bonnet
button bound to select paused Tetris and Breakout instead of dropping or
serving. 1E/1F now report BTN_C/BTN_Z; no bonnet button is Start.
From review:
- Clear the held joystick zones when an I2C read fails, so Breakout's
paddle doesn't keep moving after the bonnet stops answering.
- Set Input.ArcadeBonnet only when the key is present, so a later
config.d file with its own Input section doesn't disable the bonnet.
- Reject addresses outside the MCP23017's 0x20-0x27 in the driver and
in --check, instead of truncating them to a uint8_t.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018vaqwGPoD64pqsnPYbvnUn
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>