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Split `i2c.h` into three pieces to ease reuse of the generic defi-
nitions. No code is changed.
* `i2c.h` - keeps the generic definitions
* `i2c_simple.h` - holds the current, limited to one controller driver
per board, devicetree independent I2C interface
* `i2c_bus.h` - will become the devicetree compatible interface for
native I2C (e.g. non-SMBus) controllers
Change-Id: I382d45c70f9314588663e1284f264f877469c74d
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20845
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Our current struct for I2C segments `i2c_seg` was close to being compa-
tible to the Linux version `i2c_msg`, close to being compatible to SMBus
and close to being readable (e.g. what was `chip` supposed to mean?) but
turned out to be hard to fix.
Instead of extending it in a backwards compatible way (and not touching
current controller drivers), replace it with a Linux source compatible
`struct i2c_msg` and patch all the drivers and users with Coccinelle.
The new `struct i2c_msg` should ease porting drivers from Linux and help
to write SMBus compatible controller drivers.
Beside integer type changes, the field `read` is replaced with a generic
field `flags` and `chip` is renamed to `slave`.
Patched with Coccinelle using the clumsy spatch below and some manual
changes:
* Nested struct initializers and one field access skipped by Coccinelle.
* Removed assumption in the code that I2C_M_RD is 1.
* In `i2c.h`, changed all occurences of `chip` to `slave`.
@@ @@
-struct i2c_seg
+struct i2c_msg
@@ identifier msg; expression e; @@
(
struct i2c_msg msg = {
- .read = 0,
+ .flags = 0,
};
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struct i2c_msg msg = {
- .read = 1,
+ .flags = I2C_M_RD,
};
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struct i2c_msg msg = {
- .chip = e,
+ .slave = e,
};
)
@@ struct i2c_msg msg; statement S1, S2; @@
(
-if (msg.read)
+if (msg.flags & I2C_M_RD)
S1 else S2
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-if (msg.read)
+if (msg.flags & I2C_M_RD)
S1
)
@@ struct i2c_msg *msg; statement S1, S2; @@
(
-if (msg->read)
+if (msg->flags & I2C_M_RD)
S1 else S2
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-if (msg->read)
+if (msg->flags & I2C_M_RD)
S1
)
@@ struct i2c_msg msg; expression e; @@
(
-msg.read = 0;
+msg.flags = 0;
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-msg.read = 1;
+msg.flags = I2C_M_RD;
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-msg.read = e;
+msg.flags = e ? I2C_M_RD : 0;
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-!!(msg.read)
+(msg.flags & I2C_M_RD)
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-(msg.read)
+(msg.flags & I2C_M_RD)
)
@@ struct i2c_msg *msg; expression e; @@
(
-msg->read = 0;
+msg->flags = 0;
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-msg->read = 1;
+msg->flags = I2C_M_RD;
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-msg->read = e;
+msg->flags = e ? I2C_M_RD : 0;
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-!!(msg->read)
+(msg->flags & I2C_M_RD)
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-(msg->read)
+(msg->flags & I2C_M_RD)
)
@@ struct i2c_msg msg; @@
-msg.chip
+msg.slave
@@ struct i2c_msg *msg; expression e; @@
-msg[e].chip
+msg[e].slave
@ slave disable ptr_to_array @ struct i2c_msg *msg; @@
-msg->chip
+msg->slave
Change-Id: Ifd7cabf0a18ffd7a1def25d1d7059b713d0b7ea9
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20542
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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In builds without CONFIG_VBOOT_SEPARATE_VERSTAGE, verstage files are
linked directly into the bootblock or the romstage. However, they're
still compiled with a separate "libverstage" source file class, linked
into an intermediate library and then linked into the final destination
stage.
There is no obvious benefit to doing it this way and it's unclear why it
was chosen in the first place... there are, however, obvious
disadvantages: it can result in code that is used by both libverstage
and the host stage to occur twice in the output binary. It also means
that libverstage files have their separate compiler flags that are not
necessarily aligned with the host stage, which can lead to weird effects
like <rules.h> macros not being set the way you would expect. In fact,
VBOOT_STARTS_IN_ROMSTAGE configurations are currently broken on x86
because their libverstage code that gets compiled into the romstage sets
ENV_VERSTAGE, but CAR migration code expects all ENV_VERSTAGE code to
run pre-migration.
This patch resolves these problems by removing the separate library.
There is no more difference between the 'verstage' and 'libverstage'
classes, and the source files added to them are just treated the same
way a bootblock or romstage source files in configurations where the
verstage is linked into either of these respective stages (allowing for
the normal object code deduplication and causing those files to be
compiled with the same flags as the host stage's files).
Tested this whole series by booting a Kevin, an Elm (both with and
without SEPARATE_VERSTAGE) and a Falco in normal and recovery mode.
Change-Id: I6bb84a9bf1cd54f2e02ca1f665740a9c88d88df4
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/18302
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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UX Doc = go/gale-hw-ui
This color wasn't changed earlier as the change wasn't done in
the OS also. However, since we cannot change this later in FW
(but OS can change anytime), I am making this change after discussing
with the UX team.
BUG=b:31501528, b:31633562
TEST=Change the device state to 'recovery mode' to observe the new
color.
BRANCH=none
Change-Id: Ia91f14eb77492095cb41a9de0bb9790e72aa4851
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 36a3d8c6eabbc0b23d0a15d5bddc5ed3bdeebe70
Original-Change-Id: I88768b94cf91804a6005e44b1a168e059698ec4b
Original-Signed-off-by: Suresh Rajashekara <sureshraj@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/388206
Original-Commit-Ready: Suresh Rajashekara <sureshraj@chromium.org>
Original-Tested-by: Suresh Rajashekara <sureshraj@chromium.org>
Original-Reviewed-by: Christopher Book <cbook@chromium.org>
Original-Reviewed-by: Kan Yan <kyan@google.com>
Reviewed-on: https://review.coreboot.org/16767
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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Colors and patterns as defined by the UX team
BUG=b:31501528
TEST=Move the device to different states in FW using rec and dev
button and verify the colors
BRANCH=None
Change-Id: I66d41a54590cd3ce4e5202c7cfa890f462fe195e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 703559d5dddaeeb7d435d6cadbb2009a1b7a76c8
Original-Change-Id: I95ab1fa59b483396ff1498a28f1ee98ac08d02d7
Original-Signed-off-by: Suresh Rajashekara <sureshraj@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/387258
Original-Commit-Ready: Suresh Rajashekara <sureshraj@chromium.org>
Original-Tested-by: Suresh Rajashekara <sureshraj@chromium.org>
Original-Reviewed-by: Christopher Book <cbook@chromium.org>
Original-Reviewed-by: Kan Yan <kyan@google.com>
Reviewed-on: https://review.coreboot.org/16718
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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Gale EVT3 has only one LED controller (earlier we had 2).
Remove the support for the second controller and also the
corresponding microcode. The color values used are the same
as onHub (Arkham to be specific).
BUG=b:30890905
TEST=Move the device to different states manually by appropriate
actions (like dev mode, rec mode etc) and observe the different
colors.
BRANCH=None
Change-Id: I853035610ea7ea7c8d29c30d2de13c9e2e786b2b
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 593905d2d69daa7482318aa5f5c5cd7cf984043e
Original-Change-Id: If8f22abd605faac6f6215ef600041740ce15ea0c
Original-Signed-off-by: Suresh Rajashekara <sureshraj@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/370821
Original-Commit-Ready: Suresh Rajashekara <sureshraj@chromium.org>
Original-Tested-by: Suresh Rajashekara <sureshraj@chromium.org>
Original-Reviewed-by: Kan Yan <kyan@google.com>
Reviewed-on: https://review.coreboot.org/16697
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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These files are required by storm and gale boards for enabling elog
support in ramstage.
BUG=chrome-os-partner:55639
Change-Id: I2bbfee2acf2bfe2f896a8619b1276dcea1b87f16
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15893
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
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The build system includes a bunch of files into verstage that
also exist in romstage - generic drivers etc.
These create link time conflicts when trying to link both the
verstage copy and romstage copy together in a combined configuration,
so separate "stage" parts (that allow things to run) from "library" parts
(that contain the vboot specifics).
Change-Id: Ieed910fcd642693e5e89e55f3e6801887d94462f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: http://review.coreboot.org/10041
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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It became necessary to indicate the beginning of the normal boot
process. This patch adds a new pattern, a slow (over 2 seconds) fade
in into the 0, 87, 155 color.
BRANCH=storm
BUG=chrome-os-partner:39044
TEST=tested by the next patch.
Change-Id: Idd977688e5aa2cc55fc295072c0766526ae95016
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 577c8bd6f8c69073cfdd7acd4a87e7ae603d48e6
Original-Change-Id: I9aff3f4558e733ff2e47206075533556e400f183
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/265535
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9922
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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After testing on a final assembly the PD team adjusted the wipeout
request and recovery request modes' colors.
BRANCH=storm
BUG=none
TEST=verified new colors while booting an SP5 device in recovery mode
Change-Id: I9bd2dac63b99140573533c2cda8eaa9213478ab1
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 41c34a619dc0317af67907f18ee844c71a73d623
Original-Change-Id: Iab84710ebdeed35ddd4a8a163bbb6b8ac9cdb799
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/262602
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9890
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Modify colors as suggested by product review folks. This is not final,
to make it easier to identify RGB locations in the hex dumps, express
their values in decimal as opposed to hex.
BRANCH=storm
BUG=chrome-os-partner:36059
TEST=verified new all three color schemes while pressing the recovery
button at boot for 20 seconds.
Change-Id: I7461acd7004e3d10cba6665a9bfe25ec8aa6f3ba
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 7a075824a1954eb5d1b65ce887304924724a6d21
Original-Change-Id: I7f5968e361333572fd1f84aa11b7150194ad902a
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/261690
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9880
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The originally loaded blinking program was written to allow gradual
change in LED brightness, which required controlling each LED with its
own engine. In fact there is no need in gradual brightness changes
when the firmware is controlling the ring. This allows to control all
LEDs by one engine, making the code simpler and more robust (no need
to synchronize the three engines any more).
BRANCH=storm
BUG=chrome-os-partner:36059
TEST=verified that recovery boot WW ring patterns work as expected.
Change-Id: I89d231fb61693f4e834d8d9323ae5a7ddd149525
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 19809cf8120df8865da9b5b9e7b8e932334bf4b5
Original-Change-Id: I41038fd976dc9600f223dc0e9c9602331baf68f9
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/261026
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9873
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The two controllers on the ring are programmed independently, and if
the second controller is running the old pattern while the first one
was loaded with a new pattern, there is a window of when the two
unrelated patterns might interact.
To avoid this shut down execution on both controllers before starting
downloading the new pattern code.
BRANCH=storm
BUG=chrome-os-partner:36059
TEST=verified recovery/wipeout LED ring behavior did not change.
Change-Id: I163f2983d414fe839208054ae3e9025663a46aeb
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 3502ca6b119c033855b45388e7b782d35cfdd82b
Original-Change-Id: I0f71f94a7e82f6c0e7f98d3aad1f93ece207248f
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/261200
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9872
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Add compiled lp55231 code snippets to allow display certain patterns
when booting the device with the recovery button pressed.
As soon as the press is detected, the low intensify solid white
pattern is enabled. Holding recovery button long enough causes the
device transition between the wipeout requested and recovery requested
states, with the appropriate changes in the displayed pattern.
The patch also includes the source code for the LED controller as well
as instructions on how to compile and modify the code to result in
different colors, intensities, blink periods and duty cycles.
BRANCH=storm
BUG=chrome-os-partner:36059
TEST=reboot an SP5 device with the LED ring attached, keep the
recovery button pressed, observe the changes in the LED display
pattern while the device progresses through the boot sequence.
Change-Id: Ic7d45fc7c313b6d21119d4ae6adaeb4f46f7d181
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 0fd6a5c0067d705197816629f41640a931d2f7cd
Original-Change-Id: Ib5cc5188c2eeedbba128101bf4092a0b9a74e155
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/260670
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9870
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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The patterns displayed on the LED ring while under the coreboot
control are not driven by the vboot, but by the board code instead,
The four distinct states of the LED display are:
- all off
- recovery button push detected, waiting for it to be released
- wipeout request pending - recovery button was pushed long enough
to trigger this request
- recovery request pending - recovery button was pushed long enough
to trigger this request.
BRANCH=storm
BUG=chrome-os-partner:36059
TEST=no functional changes
Change-Id: I38d9a3028013b902a7a67ccd4eb1c5d533bf071c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: bdfff0e646283da6a2faaacf33e0179d2fea221c
Original-Change-Id: Ie279151b6060a2888268a2e9a0d4dc22ecaba460
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/260649
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9868
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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When in development environment, some SP5 devices might not have the
LED ring attached. They are still fully functional, but when booting
up are generating massive amount of i2c error messages. This patch
prevents accesses to non-existing lp55321 devices.
When loading the program into the device the vendor recommends 1 ms
delay when accessing the program control register. This patch
separates these accesses into a function and add a delay after every
access.
Another fix - advance the program address when loading multipage
programs.
Set the global variable register 3c, not used by coreboot programs, to
a fixed value. This will allow depthcharge to avoid re-initializing
the controller when not necessary.
BRANCH=storm
BUG=chrome-os-partner:36059
TEST=booted firmware on an SP5 with no LED ring attached, no excessive
error messages are generated, saw the default pattern displayed
when the recovery button is pressed during reset.
Change-Id: I6a2a27968684c40dae15317540a16405b1419e30
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 5e0b4c84aca27460db594da1faf627ddee56f399
Original-Change-Id: I10f1f53cefb866d11ecf76ea48f74131d8b0ce77
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/260648
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9867
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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This is a copy of the depthcharge ww ring driver implementation ported
into coreboot. The main differences are:
- direct use of the i2c driver instead of using the callback driver
description
- no dynamic memory allocation for the controller structures
BRANCH=storm
BUG=chrome-os-partner:36059
TEST=with the rest of the patches applied the LED ring gets
initialized to the default pattern at coreboot start.
Change-Id: I6902c8b76fc173ad2ec28b8cc94695e892df338a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: eda24b78f8aff311dd6296d458bdfecf26c3d65a
Original-Change-Id: I5660dc3f255aab8fbe3a87041c72916a645c193b
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/257730
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9858
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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