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When the user uses about the same amount of power the charger provides and the battery level is around 94%, the user might see the LED hop between green and yellow. We should update LED color less frequently in this case. BUG=chrome-os-partner:20677 TEST=Hack a console command to fake battery charge level. Change battery level between 93 and 94, and see LED color only change every 15 seconds. BRANCH=Spring Original-Change-Id: I55cda9aee5f79465e9094355a1f66666d018cddd Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/60851 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Signed-off-by: Vic Yang <victoryang@chromium.org> (cherry picked from commit d03e35c42835e4b52779499d0a4b8ebdcb1074f2) Change-Id: I51090418cdbb7a6fea0163e04d9a962b46268f34 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/61397 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
- EC Lib
This wraps Blizzard driverlib and implements the EC chip interface defined
by Google. See below diagram for architecture.
+--------------------+
| Host BIOS/OS |
+--------------------+
---- host interface ----
+--------------------+
| Google EC features |
+--------------------+
---- chip interface ---- The interface is defined in
src/platform/ec/chip_interface/*.
+--------------------+ But the real implementation is in EC Lib.
| EC Lib |
+--------------------+
| Blizzard low level |
| driver, the |
| driverlib. |
+--------------------+
Build Options
=============
- CONFIG_WATCHDOG_HELP
Try to detect a watchdog that is about to fire, and print a trace.
This is needed on STM32, where the independent watchdog has no early
warning feature and the windowed watchdog has a very short period.
- CONFIG_PANIC_HELP
Report extra information about a panic, such as the fault address,
here shown as bfar. This shows the reason for the fault and may help
to determine the cause.
=== EXCEPTION: 03 ====== xPSR: 01000000 ===========
r0 :0000000b r1 :00000047 r2 :60000000 r3 :200013dd
r4 :00000000 r5 :080053f4 r6 :200013d0 r7 :00000002
r8 :00000000 r9 :200013de r10:00000000 r11:00000000
r12:00000000 sp :200009a0 lr :08002b85 pc :08003a8a
Precise data bus error, Forced hard fault, Vector catch, bfar = 60000000
mmfs = 00008200, shcsr = 00000000, hfsr = 40000000, dfsr = 00000008
- CONFIG_ASSERT_HELP
Report assertion failures in a vebose manner to aid debugging. When
enabled an ASSERT() which fails will produce message in the form:
ASSERTION FAILURE '<expr>' in function() at file:line
- CONFIG_AC_POWER_STATUS
Monitor the state of the AC power input and drive out a GPIO to
the AP indicating this state. The GPIO will be driven low when
AC power is not connected, and high when it is connected. This
uses GPIO_AC_STATUS for this purpose.
- CONFIG_PMU_FORCE_FET
Force switching on and off the FETs on the PMU controlling various
power rails during AP startup and shutdown sequences.
This is mainly useful for bringup when we don't have the corresponding
sequences in the AP code.
- CONFIG_KEYBOARD_TEST
Turn on keyboard testing functionality. This enables a message which
received a list of keyscan events from the AP and processes them.
This will cause keypresses to appear on the AP through the same
mechanism as a normal keyboard press.