zephyr: move keyboard KConfig into separate file

Reorganinze KConfig options related to keyboard support into a separate
file.

BUG=b:167405015
BRANCH=none
TEST=make buildall
TEST=zmake testall

Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: I6052f9b0c9be85265f0d42ac69f855d9f6854b40
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2657403
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/zephyr/Kconfig.keyboard b/zephyr/Kconfig.keyboard
new file mode 100644
index 0000000000..1a8ad93075
--- /dev/null
+++ b/zephyr/Kconfig.keyboard
@@ -0,0 +1,61 @@
+# Copyright 2021 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+menuconfig PLATFORM_EC_KEYBOARD
+	bool "Keyboard support"
+	select HAS_TASK_KEYSCAN
+	default n if ARCH_POSIX
+	default y
+	help
+	  Enable compilation of support for scanning a keyboard and providing
+	  the resulting input to the AP over the host interface. This consists
+	  of a keyboard-scanning task which provides key scans via it calling
+	  keyboard_state_changed() (for i8042) or its client calling
+	  keyboard_scan_get_state() (for MKBP).
+
+	  Enabling this automatically enables HAS_TASK_KEYSCAN since keyboard
+	  scanning must run in its own task.
+
+if PLATFORM_EC_KEYBOARD
+
+choice "Protocol select"
+	prompt "Select the keyboard protocol to use"
+
+config PLATFORM_EC_KEYBOARD_PROTOCOL_8042
+	bool "i8042"
+	select HAS_TASK_KEYPROTO
+	help
+	  Use the i8042 protocol to communicate with the AP. This dates from the
+	  Intel 8042 keyboard controller chip released in 1976. It uses two-way
+	  communication via a few 8-bit registers, allowing key codes to be
+	  sent to the AP when keys are pressed and released.
+
+	  See here for docs: https://wiki.osdev.org/%228042%22_PS/2_Controller
+
+endchoice # PLATFORM_EC_KEYBOARD
+
+config PLATFORM_EC_KEYBOARD_COL2_INVERTED
+	bool "A mechanism for passing KSO2 to H1 which inverts the signal"
+	help
+	  This option enables a mechanism for passing the column 2
+	  to H1 which inverts the signal. The signal passing through H1
+	  adds more delay. Need a larger delay value. Otherwise, pressing
+	  Refresh key will also trigger T key, which is in the next scanning
+	  column line. See http://b/156007029.
+
+config PLATFORM_EC_CONSOLE_CMD_KEYBOARD_8042
+	bool "Console command: i8042"
+	default y if PLATFORM_EC_KEYBOARD_PROTOCOL_8042
+	help
+	  This command prints the state of the i8042 keyboard protocol and
+	  includes the following subcommands:
+
+	    codeset	- Get/set keyboard codeset
+	    ctrlram	- Get/set keyboard controller RAM
+	    internal    - Show internal information
+	    kbd		- Print or toggle keyboard info
+	    kblog	- Print or toggle keyboard event log (current disabled)
+	    typematic	- Get/set typematic delays
+
+endif # PLATFORM_EC_KEYBOARD