During the communication init, ectool will probe max request and
response packet size from ec and set packet size accordind to that.
However, with older kernel's ec driver, the buffer allocated by
kernel is not large enough and this will cause kernel bug.
BUG=chrome-os-partner:31989
TEST=ectool version runs fine on blaze
BRANCH=ToT
Change-Id: I499a5305c8fa8b0fd6f3be8554c9cf066b7e0828
Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/219114
Reviewed-by: Mohammed Habibulla <moch@chromium.org>
Current ectool uses max outsize / insize from protocol v2
even if we have a v3 protocol ec. This makes some command
not working when actual size supported by ec is less than
max size from protocol v2.
This CL uses protoinfo command to read max size from ec
during the initialization process to correctly set max size
for ec with protocol v3+. For ec with protocol v2, protoinfo
command won't exist, hence ectool won't modify the max size
and used the size that we set when init the protocol.
BRANCH=none
BUG=chrome-os-partner:31660
TEST=Run 'ectool flashread 0 0x1000 /tmp/fr' in ryu
Change-Id: I226b6c2fb2f7e9be73032f2c5146d2710939b293
Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/214838
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This allows sending host commands to the PD chip through the EC.
The --interface option allows forcing a particular host interface.
This is necessary at present because the crosec device driver doesn't
support host protocol v3 so only has 8-bit command numbers.
BUG=chrome-os-partner:30079
BRANCH=none
TEST=from EC console,
ectool version -> prints EC version
ectool --interface=lpc --dev=0 version -> prints EC version
ectool --interface=lpc --dev=1 version -> prints PD version
ectool --interface=lpc --dev=2 version -> prints error
ectool --interface=i2c version -> can't find EC
ectool --interface=dev version -> prints EC version
Change-Id: I9dd10578dac77e3e104d19e2f37759814eec6ca2
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/207948
The maximum packet / param size differs depending on interface and
protocol version. Commands can now ask the comm interface what the
limits are, and can use preallocated buffers to avoid needless
malloc/free.
BUG=chrome-os-partner:20571
BRANCH=none
TEST=the following all work on link
burn_my_ec
ectool version
ectool chargedump
ectool console
ectool i2cxfer 5 0x41 2
Change-Id: Ib847994da3f79721e7fb4e347231b9147a3f485f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/60275
This is preparation for the common userspace EC interface. If/when that
appears, this will be ready.
BUG=chromium:239197
BRANCH=all
TEST=manual
Build, install, run it. Shouldn't be any change.
Change-Id: I9fa78515ec5443ba659f10a66bbaadcb7f4802b0
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/56131
