diff options
author | Furquan Shaikh <furquan@chromium.org> | 2017-10-04 14:01:41 -0700 |
---|---|---|
committer | Furquan Shaikh <furquan@google.com> | 2017-10-08 19:38:28 +0000 |
commit | 2749c52080bbaba9e6ce54fb327b7157a7e392c2 (patch) | |
tree | 91e05dd62841fe1d1f0f63bba017d1fd11550613 /src/ec/google/chromeec/ec.c | |
parent | 687b023d970327e2d4994e5fb170edf9a1e7180f (diff) | |
download | coreboot-2749c52080bbaba9e6ce54fb327b7157a7e392c2.tar.xz |
ec/google/chromeec: Add library function google_chromeec_events_init
mainboard_ec_init implemented by all x86-based mainboards using
chromeec performed similar tasks for initializing and recording ec
events. Instead of duplicating this code across multiple boards,
provide a library function google_chromeec_events_init that can be
called by mainboard with appropriate inputs to perform the required
actions.
This change also adds a new structure google_chromeec_event_info to
allow mainboards to provide information required by the library
function to handle different event masks.
Also, google_chromeec_log_device_events and google_chromeec_log_events
no longer need to be exported.
Change-Id: I1cbc24e3e1a31aed35d8527f90ed16ed15ccaa86
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/21877
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/ec/google/chromeec/ec.c')
-rw-r--r-- | src/ec/google/chromeec/ec.c | 70 |
1 files changed, 49 insertions, 21 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index ab879c57a2..639719a85d 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -222,12 +222,12 @@ uint32_t google_chromeec_get_device_current_events(void) return 0; } -void google_chromeec_log_device_events(uint32_t mask) +static void google_chromeec_log_device_events(uint32_t mask) { uint32_t events; int i; - if (!IS_ENABLED(CONFIG_ELOG)) + if (!IS_ENABLED(CONFIG_ELOG) || !mask) return; if (google_chromeec_check_feature(EC_FEATURE_DEVICE_EVENT) != 1) @@ -242,6 +242,53 @@ void google_chromeec_log_device_events(uint32_t mask) } } +static void google_chromeec_log_events(u32 mask) +{ + u8 event; + u32 wake_mask; + + if (!IS_ENABLED(CONFIG_ELOG)) + return; + + /* Set wake mask so events will be read from ACPI interface */ + wake_mask = google_chromeec_get_wake_mask(); + google_chromeec_set_wake_mask(mask); + + while ((event = google_chromeec_get_event()) != 0) { + if (EC_HOST_EVENT_MASK(event) & mask) + elog_add_event_byte(ELOG_TYPE_EC_EVENT, event); + } + + google_chromeec_set_wake_mask(wake_mask); +} + +void google_chromeec_events_init(const struct google_chromeec_event_info *info, + bool is_s3_wakeup) +{ + if (is_s3_wakeup) { + google_chromeec_log_events(info->log_events | + info->s3_wake_events); + + /* Log and clear device events that may wake the system. */ + google_chromeec_log_device_events(info->s3_device_events); + + /* Disable SMI and wake events. */ + google_chromeec_set_smi_mask(0); + + /* Clear pending events. */ + while (google_chromeec_get_event() != 0) + ; + + /* Restore SCI event mask. */ + google_chromeec_set_sci_mask(info->sci_events); + } else + google_chromeec_log_events(info->log_events | + info->s5_wake_events); + + /* Clear wake event mask. */ + google_chromeec_set_wake_mask(0); +} + int google_chromeec_check_feature(int feature) { struct chromeec_command cmd; @@ -520,25 +567,6 @@ u32 google_chromeec_get_wake_mask(void) EC_CMD_HOST_EVENT_GET_WAKE_MASK); } -void google_chromeec_log_events(u32 mask) -{ -#if IS_ENABLED(CONFIG_ELOG) - u8 event; - u32 wake_mask; - - /* Set wake mask so events will be read from ACPI interface */ - wake_mask = google_chromeec_get_wake_mask(); - google_chromeec_set_wake_mask(mask); - - while ((event = google_chromeec_get_event()) != 0) { - if (EC_HOST_EVENT_MASK(event) & mask) - elog_add_event_byte(ELOG_TYPE_EC_EVENT, event); - } - - google_chromeec_set_wake_mask(wake_mask); -#endif -} - int google_chromeec_set_usb_charge_mode(u8 port_id, enum usb_charge_mode mode) { struct chromeec_command cmd; |