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| author | Vic Yang <victoryang@chromium.org> | 2013-09-26 17:39:40 +0800 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2013-09-27 04:33:33 +0000 |
| commit | 4de56d4a7f2fb9fb459f31a8e8f1616e54852157 (patch) | |
| tree | 1b35b453482fe64a0d43a81df0af9a6f7373e413 /include/test_util.h | |
| parent | 09de4c720d790a7243808e82264e8a1bb122a99d (diff) | |
| download | chrome-ec-4de56d4a7f2fb9fb459f31a8e8f1616e54852157.tar.gz | |
Test interface for detaching fake I2C devices
This provides an interface to detach and re-attach fake I2C devices,
which can be used to test I2C connection failure.
BUG=chrome-os-partner:19235
TEST=Pass sbs_charging test along with the next CL
BRANCH=None
Change-Id: Ibfee79b13d45e62377d894aa28547e77bef2189e
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/170752
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'include/test_util.h')
| -rw-r--r-- | include/test_util.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/test_util.h b/include/test_util.h index a05165148e..1dc737b986 100644 --- a/include/test_util.h +++ b/include/test_util.h @@ -218,4 +218,25 @@ struct test_i2c_write_dev { __attribute__((section(".rodata.test_i2c.read_string"))) \ = {routine} +/* + * Detach an I2C device. Once detached, any read/write command regarding the + * specified port and slave address returns error. + * + * @param port The port that the detached device is connected to + * @param slave_addr The address of the detached device + * @return EC_SUCCESS if detached; EC_ERROR_OVERFLOW if too many devices are + * detached. + */ +int test_detach_i2c(int port, int slave_addr); + +/* + * Re-attach an I2C device. + * + * @param port The port that the detached device is connected to + * @param slave_addr The address of the detached device + * @return EC_SUCCESS if re-attached; EC_ERROR_INVAL if the specified device + * is not a detached device. + */ +int test_attach_i2c(int port, int slave_addr); + #endif /* __CROS_EC_TEST_UTIL_H */ |