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| author | Keith Short <keithshort@chromium.org> | 2022-11-22 12:59:29 -0700 |
|---|---|---|
| committer | Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> | 2022-11-24 00:16:54 +0000 |
| commit | 9b5fb3a59f1f062c74846676aa23e8e5ed8bb940 (patch) | |
| tree | ec7ebcad3055a9feab076b1ace20810a580f4775 | |
| parent | c137fc572c065f5b484729d95b63c5f88bc2bb83 (diff) | |
| download | chrome-ec-9b5fb3a59f1f062c74846676aa23e8e5ed8bb940.tar.gz | |
test: i2c: Verify I2C transfers with PEC rejected
Verify that I2C transfers with PEC (packet error checking) are rejected
when CONFIG_PLATFORM_EC_SMBUS_PEC=n.
BUG=none
BRANCH=none
TEST=twister
Signed-off-by: Keith Short <keithshort@chromium.org>
Change-Id: I6897ba3f65f28356a91f84bd872fcd013fa7b358
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/4048916
Reviewed-by: Jeremy Bettis <jbettis@chromium.org>
Code-Coverage: Zoss <zoss-cl-coverage@prod.google.com>
| -rw-r--r-- | zephyr/test/drivers/i2c_controller/src/i2c_controller.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/zephyr/test/drivers/i2c_controller/src/i2c_controller.c b/zephyr/test/drivers/i2c_controller/src/i2c_controller.c index e58aad0903..594c3e6888 100644 --- a/zephyr/test/drivers/i2c_controller/src/i2c_controller.c +++ b/zephyr/test/drivers/i2c_controller/src/i2c_controller.c @@ -304,6 +304,48 @@ ZTEST_F(i2c_controller, write_offset16_block) expected); } +ZTEST_F(i2c_controller, pec_disabled) +{ + uint16_t addr_flags; + uint8_t write_data[] = { + 0xAA, + 0xBB, + 0xCC, + 0xDD, + }; + int write_data32 = 0x11223344; + uint8_t read_data[4]; + int actual_read_len; + uint16_t reg = 0x01; + + /* + * Verify I2C reads and writes through the various APIs fail when + * CONFIG_PLATFORM_EC_SMBUS_PEC=n + */ + if (IS_ENABLED(CONFIG_PLATFORM_EC_SMBUS_PEC)) { + ztest_test_skip(); + return; + } + + addr_flags = fixture->addr | I2C_FLAG_PEC; + + zassert_equal(i2c_read32(fixture->port, addr_flags, reg, + (int *)read_data), + EC_ERROR_UNIMPLEMENTED); + zassert_equal(i2c_write32(fixture->port, addr_flags, reg, write_data32), + EC_ERROR_UNIMPLEMENTED); + zassert_equal(i2c_read_sized_block(fixture->port, addr_flags, reg, + read_data, sizeof(read_data), + &actual_read_len), + EC_ERROR_UNIMPLEMENTED); + zassert_equal(i2c_read_sized_block(fixture->port, addr_flags, reg, + read_data, 0, &actual_read_len), + EC_ERROR_INVAL); + zassert_equal(i2c_write_block(fixture->port, addr_flags, reg, + write_data, sizeof(write_data)), + EC_ERROR_UNIMPLEMENTED); +} + ZTEST_F(i2c_controller, i2c_xfer_unlocked__error_paths) { uint8_t out_buffer[1]; |