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| author | Nicolas Boichat <drinkcat@google.com> | 2017-05-31 12:12:12 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2017-06-06 08:52:16 -0700 |
| commit | 39db721f9ace13cc210278c88c3f364b5d67b5b8 (patch) | |
| tree | 6a0ca910942bf8c41560e91b73a8a58d04bc146c /test/build.mk | |
| parent | 2f436f4cc9bd026ed83511401ab17d68f5f8e5a3 (diff) | |
| download | chrome-ec-39db721f9ace13cc210278c88c3f364b5d67b5b8.tar.gz | |
hammer: Add board_get_entropy function (and test)
This function will be used to generate some entropy using the
Clock Recovery System.
BRANCH=none
BUG=b:38486828
TEST=make BOARD=hammer -j tests
./util/flash_ec --board=hammer --image=build/hammer/test-entropy.bin
EC console: runtest
TEST=Test fails when no USB connection is active
TEST=Test passes when USB connection is active
TEST=Pasting the values into:
tr ';' '\n' | awk 'BEGIN { e = 0; tot=16384.0 }
{ p = $1/tot; if (p > 0) { e -= p*log(p)/log(2) } }
END { print e }'
shows an entropy > 4 bits per sample.
Change-Id: I2363c7bce42c72c33ef0bf3f099d709ee9c13d13
Reviewed-on: https://chromium-review.googlesource.com/518608
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'test/build.mk')
| -rw-r--r-- | test/build.mk | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/test/build.mk b/test/build.mk index b92e263e8f..807d0f57b7 100644 --- a/test/build.mk +++ b/test/build.mk @@ -12,6 +12,8 @@ test-list-y=pingpong timer_calib timer_dos timer_jump mutex utils utils_str test-list-$(BOARD_BDS)+= test-list-$(BOARD_PIT)+=kb_scan stress +test-list-$(BOARD_HAMMER)+=entropy + # Samus has board-specific chipset code, and the tests don't # compile with it. Disable them for now. test-list-$(BOARD_SAMUS)= @@ -85,6 +87,7 @@ charge_manager-y=charge_manager.o charge_manager_drp_charging-y=charge_manager.o charge_ramp-y+=charge_ramp.o console_edit-y=console_edit.o +entropy-y=entropy.o extpwr_gpio-y=extpwr_gpio.o fan-y=fan.o flash-y=flash.o |