diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2015-12-01 19:14:09 -0800 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-02-04 17:21:04 +0100 |
| commit | e2cea4f4582dad7f202a3f6d4fc884b01ec1d52d (patch) | |
| tree | df4f4315bc15d4c7ca54b4e712bdce5c16e15774 /src/ec/google/chromeec/ec.c | |
| parent | eb31685bbba0b58aea0cd6900ed59eae76c80ad4 (diff) | |
google/chromeec: Add temporary storage interface
Add support functions for the Chrome EC temporary storage interface.
BUG=chrome-os-partner:46049
BRANCH=none
TEST=tested on glados with modified coreboot
Change-Id: Id2bc46df9cb2d82b15e3309e78d07407a622b6f0
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: a7e6f693666b162e11eb0611715f10a8f465ad88
Original-Change-Id: Ieefabfc5bcb9d8a5064f0da967c46d0f377ca320
Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/315217
Original-Commit-Ready: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/13572
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/ec/google/chromeec/ec.c')
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index 5db387009e..87ab13acec 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -121,6 +121,27 @@ int google_chromeec_clear_events_b(u32 mask) EC_CMD_HOST_EVENT_CLEAR_B, mask); } +int google_chromeec_check_feature(int feature) +{ + struct chromeec_command cmd; + struct ec_response_get_features r; + + cmd.cmd_code = EC_CMD_GET_FEATURES; + cmd.cmd_version = 0; + cmd.cmd_size_in = 0; + cmd.cmd_data_out = &r; + cmd.cmd_size_out = sizeof(r); + cmd.cmd_dev_index = 0; + + if (google_chromeec_command(&cmd) != 0) + return -1; + + if (feature >= 8 * sizeof(r.flags)) + return -1; + + return r.flags[feature / 32] & EC_FEATURE_MASK_0(feature); +} + #ifndef __SMM__ #ifdef __PRE_RAM__ void google_chromeec_check_ec_image(int expected_type) |