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path: root/src/ec/google/chromeec/crosec_proto.c
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2015-10-31tree: drop last paragraph of GPL copyright headerPatrick Georgi
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-05-21Remove address from GPLv2 headersPatrick Georgi
As per discussion with lawyers[tm], it's not a good idea to shorten the license header too much - not for legal reasons but because there are tools that look for them, and giving them a standard pattern simplifies things. However, we got confirmation that we don't have to update every file ever added to coreboot whenever the FSF gets a new lease, but can drop the address instead. util/kconfig is excluded because that's imported code that we may want to synchronize every now and then. $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} + $ find * -type f -a \! -name \*.patch \ -a \! -name \*_shipped \ -a \! -name LICENSE_GPL \ -a \! -name LGPL.txt \ -a \! -name COPYING \ -a \! -name DISCLAIMER \ -exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} + Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/9233 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2015-04-10cros_ec: Retry failed VBNV transactionsJulius Werner
This patch adds a few retries to NVRAM read/write transactions with the EC. Failing to read the NVRAM is not fatal to the boot, but it's still pretty bad... especially since a single initial read failure will cause vboot to blindly reinitialize the whole NVRAM with zeroes, destroying important configuration bits like dev_boot_usb. The current EC transaction timeout is one second, so the three retries added here can potentially increase boot time by three seconds per transaction... but this shouldn't happen in any normal case anyway, and if there are errors a little extra wait is probably preferrable to nuking your NVRAM. (Also, added a missing newline to an error message in the EC code.) BRANCH=veyron BUG=chrome-os-partner:36924 TEST=Booted a Jerry with the power button bug with a 2 second press, noticed that the first two transactions failed but the third one succeeded. Change-Id: I5d1cf29ac1c555ea2336ebb0b0e0a3f7cbb9c3fd Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 894a8a0b4a9805e92544b5e3dfa90baf6d36649a Original-Change-Id: I6267cdda2be2bad34541b687404c2434d3be345b Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/251694 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9507 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2015-03-21chromeec: allow transport implementation to provide buffers for proto v3Aaron Durbin
Depending on the transport mechanism for proto v3 different bytes need to be send and/or read before the request and response. Depending on the software and/or controller interface that requirement leads to needing to copy data into temporary buffers. Avoid this by allowing the transport mechanism to provide the request and response buffers. BUG=chrome-os-partner:31148 BRANCH=None TEST=Built for rush and ryu. Ran on ryu with i2c implementation. Also built for rambi to check x86 systems. Change-Id: I35d4d69bd1fa900fc0cfe3822496f381405bdcb1 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: c7224426e1d0bcf06ed010131a2462a6ca201d8b Original-Change-Id: Iad6cce566a253ca72e6f5009a97235ece0a6c1b5 Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/211138 Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/8827 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10ec/google: Support Chrome EC protocol version 3.Hung-Te Lin
Add the new Chrome EC protocol version 3 to Coreboot. Note, protocol version 3 is not applied on any bus implementations yet. LPC (x86) and I2C (arm/snow) are still using v2 protocol. The first one to use v3 protocol will be SPI bus (arm/pit). LPC / I2C will be updated to v3 only when they are ready to change. Change-Id: I3006435295fb509c6351afbb97de0fcedcb1d8c4 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3750 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-07-10ec/google: Generalize communication protocol support in EC drivers.Hung-Te Lin
Since EC protocol v3, the packet format will be the same for all buses (inclding I2C, SPI, and LPC). That will simplify the implementation in each individual bus driver source file. To prepare for that, we will move the protocol part into crosec_proto.c: crosec_command_proto, with bus driver in callback "crosec_io". Change-Id: I9ccd19a57a182899dd1ef1cd90598679c1546295 Signed-off-by: Hung-Te Lin <hungte@chromium.org> Reviewed-on: http://review.coreboot.org/3749 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>