f946dc6893
Switched the GPIO matrix driver to debouncing using a simple integrator algorithm. Whenever a key is pressed, we now scan at a rate controlled by debounce-scan-period-ms (default 1 ms) until all keys are released, then return to either waiting for an interrupt or polling more slowly. The timers for key press and release can now be controlled separately, so debounce-period is deprecated in favor of debounce-press-ms and debounce-release-ms. Global Kconfig options ZMK_KSCAN_DEBOUNCE_PRESS_MS and ZMK_KSCAN_DEBOUNCE_RELEASE_MS are also added to make these easier to set. Added documentation for debouncing options.
43 lines
1.1 KiB
YAML
43 lines
1.1 KiB
YAML
# Copyright (c) 2020, Pete Johanson
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# SPDX-License-Identifier: MIT
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description: GPIO keyboard matrix controller
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compatible: "zmk,kscan-gpio-matrix"
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include: kscan.yaml
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properties:
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row-gpios:
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type: phandle-array
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required: true
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col-gpios:
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type: phandle-array
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required: true
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debounce-period:
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type: int
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required: false
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deprecated: true
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description: Deprecated. Use debounce-press-ms and debounce-release-ms instead.
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debounce-press-ms:
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type: int
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default: 5
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description: Debounce time for key press in milliseconds. Use 0 for eager debouncing.
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debounce-release-ms:
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type: int
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default: 5
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description: Debounce time for key release in milliseconds.
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debounce-scan-period-ms:
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type: int
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default: 1
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description: Time between reads in milliseconds when any key is pressed.
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poll-period-ms:
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type: int
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default: 10
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description: Time between reads in milliseconds when no key is pressed and ZMK_KSCAN_MATRIX_POLLING is enabled.
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diode-direction:
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type: string
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default: row2col
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enum:
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- row2col
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- col2row
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