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| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2016-10-26 16:11:45 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2016-12-01 19:59:01 -0800 |
| commit | 5602f4d5155a6ea0eefbd514871c069b381dbd0a (patch) | |
| tree | 79b405e4bdbe28e4484595f1f7795f1716c4db8f /include/i2c.h | |
| parent | 2c1626eb45e317d4b705add89409f294a7146919 (diff) | |
| download | chrome-ec-5602f4d5155a6ea0eefbd514871c069b381dbd0a.tar.gz | |
i2c: Lock out i2c passthru except for desired ports
Lock out all non-essential i2c passthru ports when system is protected.
BUG=chrome-os-partner:58859
BRANCH=gru
TEST='ectool i2cxfer 0 0 0 0' on locked system, verify that "ACCESS
DENIED" is returned.
Change-Id: If4119bbb319aa491d0e79a9ed80c94daa7950c2f
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/403543
Tested-by: Philip Chen <philipchen@chromium.org>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Philip Chen <philipchen@chromium.org>
Commit-Queue: Philip Chen <philipchen@chromium.org>
(cherry picked from commit d29fdb5484b994937c6586a50dd2818028f15f3f)
Reviewed-on: https://chromium-review.googlesource.com/415493
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'include/i2c.h')
| -rw-r--r-- | include/i2c.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/i2c.h b/include/i2c.h index 38e632e38e..73716cf705 100644 --- a/include/i2c.h +++ b/include/i2c.h @@ -324,4 +324,13 @@ int i2c_set_response(int port, uint8_t *buf, int len); */ void i2cm_init(void); +/** + * Board-level function to determine whether i2c passthru should be allowed + * on a given port. + * + * @parm port I2C port + * + * @return true, if passthru should be allowed on the port. + */ +int board_allow_i2c_passthru(int port); #endif /* __CROS_EC_I2C_H */ |