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ec/google/wilco: Save and restore PS/2 data for S3

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Send a command to the EC on the way into S3 suspend state telling
it to save the PS/2 data, and on resume send it a command for
restoring the PS/2 data that was previously saved.

Change-Id: Ic4b5d6d2656dbb1c476b9211b0d60c71b0cd7b32
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/29120
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Duncan Laurie
2018-10-15 13:39:35 -07:00
committed by Duncan Laurie
parent d978174d1d
commit 3fbe1949b1
3 changed files with 11 additions and 0 deletions
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4
src/ec/google/wilco/commands.h
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@ -26,6 +26,10 @@ enum {
KB_POWER_STATUS = 0x05,
/* Inform the EC aboout the reason host is turning off */
KB_POWER_OFF = 0x08,
/* Save PS/2 data before S3 suspend */
KB_SAVE = 0x2f,
/* Restore PS/2 data after S3 resume */
KB_RESTORE = 0x30,
/* Retrieve information about the EC */
KB_EC_INFO = 0x38,
/* Set ACPI mode on or off */