Commit graph

29 commits

Author SHA1 Message Date
Peter Johanson
9782518397 feature(drivers): Option for read wait on matrix.
* Add a new Kconfig option, `ZMK_KSCAN_MATRIX_WAIT_BEFORE_INPUTS`
  to delay reading inputs after setting an output active.
2022-09-29 01:06:54 -04:00
Peter Johanson
08c43feaaf feat(kscan): Kconfig for optional scan delay.
Add optional Kconfig setting to delay scanning after each
output column is set, and inputs are read, to allow inputs
to "settle" after the last column is set back to inactive.
2022-07-15 11:07:08 -04:00
Kurtis Lew
0bde987ae2 Update kscan_gpio_get_extra_flags 2022-05-19 11:24:01 -04:00
Kurtis Lew
6f1adfbe14 Address further review by @petejohanson 2022-05-19 11:24:01 -04:00
Kurtis Lew
4dfcadb1ed Remove unnecessary LOG_DBG 2022-05-19 11:24:01 -04:00
Kurtis Lew
fec99c7d5e Update kscan_direct_gpio.c
- Fix logic in getting pulls from ACTIVE_LOW vs. ACTIVE_HIGH DT flags
- Add pulls on init
2022-05-19 11:24:01 -04:00
Kurtis Lew
f39c821d19 Simplify kscan_gpio_get_flags
Co-authored-by: Pete Johanson <peter@peterjohanson.com>
2022-05-19 11:24:01 -04:00
Kurtis Lew
f369f2cc46 feat(kscan): Add toggle-mode to updated direct-wire kscan 2022-05-19 11:24:01 -04:00
Joel Spadin
0738b4b2b0 refactor(kscan): Match direct GPIO driver to matrix driver
Rewrote the direct GPIO kscan driver to match the improvements made to
the matrix driver in 82cb762698 and
f946dc6893. It now uses the same
debouncing system as the matrix driver.
2022-05-17 01:20:20 -04:00
Joel Spadin
6d6efa32f5 refactor(kscan): Auto enable kscan drivers
The key scanning drivers are now automatically enabled when a DT node
with the matching "compatible" property is present and enabled, so they
no longer need to be manually set for each board.
2022-04-25 22:28:53 -04:00
Joel Spadin
a3a9510e47 refactor(kscan): Use GPIO DT spec macros in matrix driver 2022-04-25 22:28:53 -04:00
Peter Johanson
4df83a9c0d refactor: Move away from deprecated PM callback. 2022-04-03 00:10:29 -04:00
Peter Johanson
53dae35710 refactor: Move to k_work_delayable API.
* Move to new `k_work_delayable` APIs introduced in Zephyr 2.6.

See: https://docs.zephyrproject.org/latest/releases/release-notes-2.6.html#api-changes
2022-04-03 00:10:29 -04:00
Joel Spadin
f946dc6893 feat(kscan): Improve matrix debouncing
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.
2021-10-26 23:52:13 -04:00
Pete Johanson
c9a671d8d5 fix(kscan): Allow composite driver to handle missing children.
For split keyboards using an IO expander over TRRS/i2c, if the
right half isn't connected, we should be able to gracefully
fallback to the left side still working.
2021-09-14 20:48:28 -04:00
Joel Spadin
82cb762698 refactor(kscan): Demacroify GPIO matrix driver
Refactored the GPIO matrix kscan driver so that only the data and config
structures are defined in the foreach macro. Functionality is unchanged
except for the addition of DT properties to adjust polling speed.

This should make it easier to add other enhancements later, like
improved and customizable debounce behavior.
2021-09-08 14:34:28 -04:00
Pete Johanson
2a69f31eb0 refactor(core): Move away from deprecated DT API.
* Move to `DEVICE_DT_INST_DEFINE` everywhere.

See: https://docs.zephyrproject.org/2.5.0/releases/release-notes-2.5.html#deprecated-in-this-release
PR: https://github.com/zmkfirmware/zmk/pull/736
2021-07-17 17:04:25 -04:00
Jay Greco
f3bb90f9e1
fix(kscan): Fix nibble demux scan errors on encoder row
+ Add a 1us sleep to let the column selection settle in order to avoid spurious keypresses when row capacitance is high (like on the encoder row)
2021-06-08 20:59:35 -04:00
Pete Johanson
27c89e69c1 fix(kscan): Proper direct wire warning message. 2021-03-15 00:39:29 -04:00
Pete Johanson
0f9fff7554 Fix the label for the GPIO kscan driver. 2021-02-27 14:32:42 -05:00
Pete Johanson
6c7ab0ce53 refactor(kscan): Fix polling of GPIO matrices.
* Add easier macros for conditional polling/interrupt code.
* Properly continue polling on intervals, without extra
  enable/disable code for pins that is superfluous when not trying to
  deal with interupts firing.
* Fix to allow multiple GPIO drivers when doing splits w/ IO expanders
2021-02-02 14:04:10 -05:00
Pete Johanson
2f352788c1 refactor(kscan): Remove explicit default n from kscan configs.
* Actually allow defaulting yes in other places.
2021-02-02 14:04:10 -05:00
innovaker
842aa5a842 refactor: replace filename hyphens with underscores
Aligns *.h and *.c to underscore naming convention.

These were kept (with warnings) for backwards compatibility with external boards/shields:
- kscan-mock.h
- matrix-transform.h
They should be removed in the future.

PR: #523
2020-12-28 01:15:35 -05:00
innovaker
00ca0d2f1c refactor(app): replace struct device * with const struct device *
Replaced with RegExp: /(?<!const )(struct device \*)/g

See: https://docs.zephyrproject.org/latest/releases/release-notes-2.4.html
PR: #467
2020-12-14 12:41:25 -05:00
innovaker
1411092a7b refactor(app): replace driver_data with data
See: https://docs.zephyrproject.org/latest/releases/release-notes-2.4.html
PR: #467
2020-12-14 12:41:25 -05:00
innovaker
3d7376d2e5 refactor(app): replace config_info with config
See: https://docs.zephyrproject.org/latest/releases/release-notes-2.4.html
PR: #467
2020-12-14 12:41:25 -05:00
innovaker
bac1f17cf6 refactor(app): replace Zephyr integer types with C99 integer types
u8_t → uint8_t
u16_t → uint16_t
u32_t → uint32_t
u64_t → uint64_t
s8_t → int8_t
s16_t → int16_t
s32_t → int32_t
s64_t → int64_t

Prerequisite for #223
See: https://github.com/zephyrproject-rtos/zephyr/releases/tag/zephyr-v2.4.0
PR: #467
2020-12-14 12:41:25 -05:00
Pete Johanson
e6a27b15c1 fix(kscan): Fix building kscan for tests. 2020-12-08 22:20:12 -05:00
innovaker
8d9ae1fdf3 refactor: Align drivers with Zephyr file system conventions
PR: #400
2020-12-03 21:06:01 -05:00