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ec/google/chromeec: Add support for EC device events

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Add support for the new EC device event interface which is used to
report events from devices that are connected behind the EC.

This can be used to differentiate wake sources from the EC in the case
that the EC has the wake pins from various devices.

This can be used in case the AP is unable to directly wake from the
device itself, for example when using the Deep S3 state on Intel
platforms only a few pins can directly wake the AP.

BUG=b:30624430
TEST=build google/* boards that use chrome EC.  Feature is used and
tested further in a subsequent commit.

Change-Id: I5126c6d6ffb6b0ef6e8db8dcd5aec62db925a371
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/20426
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Duncan Laurie
2017-06-29 23:52:17 -07:00
parent b14aefece3
commit 7378a1792a
4 changed files with 113 additions and 1 deletions
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6
src/ec/google/chromeec/ec.h
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@@ -34,6 +34,12 @@ u8 google_chromeec_get_event(void);
int google_ec_running_ro(void);
void google_chromeec_init(void);
/* Device events */
uint32_t google_chromeec_get_device_enabled_events(void);
int google_chromeec_set_device_enabled_events(uint32_t mask);
uint32_t google_chromeec_get_device_current_events(void);
void google_chromeec_log_device_events(uint32_t mask);
/* If recovery mode is enabled and EC is not running RO firmware reboot. */
void google_chromeec_early_init(void);
/* Reboot if EC firmware is not expected type. */