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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) |