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According to stack analyzer, cprintf takes 232 byte stack size.
Replace cprintf by cputs on critical paths to save space.
After this change, the CHARGER task on juniper takes 200 bytes less
(1048 -> 848).
BUG=b:179451031
TEST=cherry-pick this CL to kukui branch, run `make analyzestack`
BRANCH=kukui
Signed-off-by: Ting Shen <phoenixshen@google.com>
Change-Id: Ie23820fd4836877d912d6af583e13d43d990f9ee
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2677842
Reviewed-by: Eric Yilun Lin <yllin@chromium.org>
Commit-Queue: Eric Yilun Lin <yllin@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
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Use controller/peripheral nomenclature.
BUG=none
BRANCH=none
TEST=Build a device that uses i2c_bitbang (e.g. jacuzzi)
Signed-off-by: dossym@chromium.org
Change-Id: I597e1bf2f86ca93fe8b2230d603345033f43ed96
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2619071
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>
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Krane/Jacuzzi need a 100KHz SMBus port for battery, in addition to the
existing two i2c ports.
This CL adds a bit-bang driver that supports i2c/smbus bit-banging
through a set of pre-defined gpio pins.
BUG=b:138161741,b:138415463
TEST=On a reworked jacuzzi (battery i2c connected to other gpios),
1) `battery` shows reasonable output (this verifies i2c_readN,
i2c_read_string)
2) `i2cscan` works for port 3 (bitbang port)
3) `cutoff` (verifies i2c_writeN)
4) `i2ctest` stress test
BRANCH=master
Change-Id: I78020e5c51707c3d9f0fd54f2c299e2f29cabe2f
Signed-off-by: Ting Shen <phoenixshen@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1765110
Reviewed-by: Alexandru M Stan <amstan@chromium.org>
Commit-Queue: Ting Shen <phoenixshen@chromium.org>
Tested-by: Ting Shen <phoenixshen@chromium.org>
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