3 Commits

Author	SHA1	Message	Date
Shawn Nematbakhsh	d36e177f9f	smbus: Re-write smbus driver ... Re-write smbus driver to fix arbitrary length read and improve code organization. BUG=chromium:576911 BRANCH=None TEST=Manual on sentry. Verify that smbus communication with battery is functional. Change-Id: I63c4bc3df40755cd41b3d9956af0ab9d2145a253 Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/333787 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Vincent Palatin <vpalatin@chromium.org>	2016-03-21 16:35:33 -07:00
Randall Spangler	f956dc46fc	smbus: Don't use shared memory buffer for word writes ... This is a waste of code, since it trades off a 5-byte buffer for a 4-byte pointer. BUG=chrome-os-partner:36362 BRANCH=none TEST=make buildall -j Change-Id: I2b3336ba2c4804f2781592d2c939ae28e83c846b Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/246180 Reviewed-by: Vic Yang <victoryang@chromium.org>	2015-02-04 23:32:42 +00:00
Sheng-Liang Song	7bea5174a1	EC: Add smbus interface read & write APIs ... Ref: http://smbus.org/specs/smbus20.pdf - Support software CRC8 generation and checking. - Support read/write word (2-bytes) - Support read/write blocks (up to 32 bytes) BUG=chrome-os-partner:24741 BRANCH=ToT,glimmer TEST=Verified with smart battery firmware update application on glimmer. Passed LGC & Simplo Battery. Change-Id: Ic2e7f759af80c06741ed49fee1826213429fbf8a Signed-off-by: Sheng-Liang Song <ssl@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/209747 Reviewed-by: Randall Spangler <rspangler@chromium.org>	2014-08-29 02:57:00 +00:00