This patch is to enable fan through PWM4 output and TACH feedback
from TA2 GPIOA6, and move EC_PLATFORM_RST to GPIO45.
BUG=b:64915426
BRANCH=None
TEST=emerge-fizz chromeos-ec and use fanduty and faninfo from EC
console to control and check fan status. Probed oscilloscope
on PWM output and checked the duty as expected. Made sure the
fan was stopped when DUT entered S3 and was running when DUT
resumed from S3.
Change-Id: I09f3ac43d2e4170b2aff3830f832bc5fd46a15c0
Signed-off-by: Gaggery Tsai <gaggery.tsai@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/627542
Commit-Ready: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Since pretty much always, we've declared console commands to take
a "longhelp" argument with detailed explanations of what the
command does. But since almost as long, we've never actually used
that argument for anything - we just silently throw it away in
the macro. There's only one command (usbchargemode) that even
thinks it defines that argument.
We're never going to use this, let's just get rid of it.
BUG=none
BRANCH=none
CQ-DEPEND=CL:*279060
CQ-DEPEND=CL:*279158
CQ-DEPEND=CL:*279037
TEST=make buildall; tested on Cr50 hardware
Everything builds. Since we never used this arg anyway, there had
better not be any difference in the result.
Change-Id: Id3f71a53d02e3dc625cfcc12aa71ecb50e35eb9f
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/374163
Reviewed-by: Myles Watson <mylesgw@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Fan will disable when S3 and S5 by pwm_fan_s3_s5,
which call set_enabled(fan, 0) to disable it.
But the pwn_fan_resume called fan_set_enabled() which not setting
GPIO_FAN_PWR_DIF_L to 1, we should use set_enabled() instead.
BUG=chrome-os-partner:50372
BRANCH=master
TEST=check fan enable after system resume
Signed-off-by: Keith Tzeng <Keith.Tzeng@quantatw.com>
Change-Id: Id0bd4dd0afc7e02bcfa6e20401d6e9dfe8a81423
Reviewed-on: https://chromium-review.googlesource.com/335693
Commit-Ready: Keith Tzeng <keith.tzeng@quantatw.com>
Tested-by: Keith Tzeng <keith.tzeng@quantatw.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Rather than having various PWM module groups initialized from various
HOOK_INIT functions, group them all into a single module and initialize
them all from a common function in pwm.c.
BUG=chromium:563708
TEST=Manual on samus / samus_pd (with CONFIG_ADC enabled). Verify that
samus fan + KB backlight control is functional and samus_pd correctly
sets PWM output.
BRANCH=None
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I9f9b09bfa544cd9bc6b7a867e77757dff0505941
Reviewed-on: https://chromium-review.googlesource.com/314882
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
For multi-byte ACPI memmap reads, we previously had a mutex to ensure
data continuity. A better approach is to use a read cache. Since the
kernel will enable burst mode before reading a multi-byte memmap
variable and disable it afterward, we can populate the cache on the
first read after enabling burst. This solution removes deadlock bugs, is
contained entirely in acpi.c, and saves a deferred function.
BUG=chromium:514283
TEST=Manual on Glados. Add prints in acpi_read, verify that multi-byte
reads come from cache and non-burst reads continue to function as
before.
BRANCH=Cyan
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Change-Id: I74e4927bf2b433e31a9ff65d72820fa087c51722
Reviewed-on: https://chromium-review.googlesource.com/288871
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Some platforms are unable to access the 900h-9ffh region over LPC and
must instead access memmap data through the ACPI CMD / DATA ports. To
avoid racing with data updates, disallow changes to multi-byte memmap
data while in burst mode.
Linux currently enables burst mode when accessing multi-byte data and
disables it immediately afterward, though the ACPI spec defines burst mode
in a more general way.
BUG=chrome-os-partner:38224
TEST=Manual on Samus. Undefine LPC_MEMMAP and modify asl to move memmap
data to ERAM at offset 0x20. Verify system boots cleanly and battery
status is updated immediately on plug / unplug.
BRANCH=None
Change-Id: Ib848bdb491fdfece96ad0cee7a44ba85b4a1a50b
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/262072
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
This adds CONFIG_FAN_UPDATE_PERIOD to limit the frequency at which
the fan speeds are updated. Short version: the CPU core temp
fluctuates rapidly, causing the fans turn off and on annoyingly
often (assuming you have good hearing and are in a quiet room).
With this CL, we limit the speed changes to only once every N
seconds. N should be long enough to be less annoying, yet short
enough that the CPU doesn't overheat while we're not looking.
BUG=chrome-os-partner:34789
BRANCH=ToT,samus
TEST=manual
Let it sit quietly, then visit a busy webpage, then let it sit a
while. The fan speed should only change every 10 seconds or so,
not every second.
Change-Id: Id985350394f24d56dc4a1e51af09487ac643285b
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/250501
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
An earlier commit posted fan-change info to the console. Turns
out it's a little too annoying, and disabling it with the "chan"
command would also hide messages related to thermal shutdown.
This just removes those updates completely.
BUG=chrome-os-partner:33775
BRANCH=ToT,samus
TEST=make buildall -j
Watch the EC console. The messages no longer appear.
Change-Id: Ie8c48d7ce493a25bf0afbd26d280a87dda882c1a
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/229623
Reviewed-by: Randall Spangler <rspangler@chromium.org>
The fans on samus have a recommended minimum duty cycle of 20%
while running, but 30% in order to start. We've been using the
EC's built-in fan controller for the start requirement, but it
has a minimum fast-start duty cycle of 50%. It turns out that
that speed is noticeably noisy.
This change handles the startup with logic in the EC instead, so
that the fan only tries to spin at 30% initially (or if it drops
too much below the minimum turning speed).
BUG=chrome-os-partner:33429
BRANCH=ToT,samus
TEST=make buildall -j
Boot the system, let it idle with the browser windows closed, the
browse a bit, then idle. Listen for changes to the fans.
Before, I could hear the fans kick in and out as the AP load
changed. Now it's much quieter.
Change-Id: Id35215520c064eb6843686ec8bb5f3618dac6cf6
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/227658
Reviewed-by: Randall Spangler <rspangler@chromium.org>
ectool autofanctrl 1 - set auto fan control for fan 1
BUG=chrome-os-partner:23803
TEST=Tested the above EC command on Auron
BRANCH=none
Change-Id: Idcd3690ad98d7965420f26f7cc445207fe73704d
Signed-off-by: Mohammed Habibulla <moch@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/221816
Reviewed-by: Randall Spangler <rspangler@chromium.org>
First case is for legacy support
ectool pwmsetfanrpm <targetrpm> - set all fans to <targetrpm>
ectool pwmsetfanrpm <fan> <targetrpm> - set <fan> to <targetrpm>
BUG=chrome-os-partner:23803
TEST=Tested the above EC commands on Auron
BRANCH=none
CQ-DEPEND=CL:220960
Change-Id: I8f447f53289abaa9c5cc1285f9f0921328fbf32c
Signed-off-by: Mohammed Habibulla <moch@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/221291
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Setting initial max speed works by setting RPM but fails when
setting with duty cycle
BUG=chrome-os-partner:31801
TEST=booted on auron and peppy and confirmed that initial fan speed is
set to maximum
BRANCH=none
Change-Id: I81172a414df13c2e0b2d0f4fe7ff1270fa5f60a3
Signed-off-by: Mohammed Habibulla <moch@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/217790
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Our code base contains a lot of debug messages in this pattern:
CPRINTF("[%T xxx]\n") or ccprintf("[%T xxx]\n")
The strings are taking up spaces in the EC binaries, so let's refactor
this by adding cprints() and ccprints().
cprints() is just like cprintf(), except that it adds the brackets
and the timestamp. ccprints() is equivalent to cprints(CC_CONSOLE, ...)
This saves us hundreds of bytes in EC binaries.
BUG=chromium:374575
TEST=Build and check flash size
BRANCH=None
Change-Id: Ifafe8dc1b80e698b28ed42b70518c7917b49ee51
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/200490
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Previously, it would only set the fan RPM, but not actually enable the
fan so it can spin at the requested speed. Compare with setting fan
duty cycle, which always enabled the fan.
BUG=chrome-os-partner:23803
BRANCH=samus
TEST=with fans off, 'ectool pwmsetfanrpm 1000' should spin both fans,
and the ec 'faninfo' command should show both fans enabled.
Change-Id: I37d7fb05309944ab6f98333e2cf3b38ea2dd38e9
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/187386
Reviewed-by: Sameer Nanda <snanda@chromium.org>
It worked on Link because the fan number and the fan channel were both 0.
Samus has two fans, connected to different GPIOs.
In the EC's ACPI interface block, register 0x04 is used to get and set the
fan's target duty cycle, as a percentage value. Writing a 0 to this register
will set the target duty cycle to 0, writing a 100 (0x64) will set it to
100%. Writing any other value will return the fan control to the EC, rather
than driving it manually from the host.
Likewise, reading from this register returns the current fan target duty
cycle, as a percentage. If the EC is controlling the fan automatically, the
returned value will be 0xFF.
BUG=chrome-os-partner:23972
BRANCH=samus
TEST=manual
You can monitor the fan state from the EC console with the "faninfo"
command. From the host side, test this interface from a root shell.
Read fan duty:
iotools io_write8 0x66 0x80
iotools io_write8 0x62 4
iotools io_read8 0x62
Set fan duty to 100%:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 100
Set fan duty to 50%:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 50
Set fan duty to 0%:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 0
Set fan control back to automatic:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 -1
Change-Id: I3a133b0b16e2a5e1ce04b16cb2bf035a04a83daf
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/179373
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This adds include/dptf.h to define the DPTF interface functions.
As the first DPTF feature, it also adds a register to the EC's ACPI
interface block. Register 0x04 is used to get and set the fan's target duty
cycle, as a percentage value. Writing a 0 to this register will set the
target duty cycle to 0, writing a 100 (0x64) will set it to 100%. Writing
any other value will return the fan control to the EC, rather than driving
it manually from the host.
Likewise, reading from this register returns the current fan target duty
cycle, as a percentage. If the EC is controlling the fan automatically, the
returned value will be 0xFF.
BUG=chrome-os-partner:23972
BRANCH=none
TEST=manual
You can monitor the fan state from the EC console with the "faninfo"
command. From the host side, test this interface from a root shell.
Read fan duty:
iotools io_write8 0x66 0x80
iotools io_write8 0x62 4
iotools io_read8 0x62
Set fan duty to 100%:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 100
Set fan duty to 50%:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 50
Set fan duty to 0%:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 0
Set fan control back to automatic:
iotools io_write8 0x66 0x81
iotools io_write8 0x62 4
iotools io_write8 0x62 -1
Change-Id: I91ec463095cfd17adf452f0967da3944b254d558
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177423
Reviewed-by: Randall Spangler <rspangler@chromium.org>
That way all the users of jump tags don't need to know about the
padding requirements.
BUG=chrome-os-partner:23851
BRANCH=none
TEST=enable CONFIG_CMD_JUMPTAGS, then 'jumptags'. Output should be
something like this:
20007fbc: 0x5550 UP.1 2
20007fc4: 0x4b42 KB.2 3
20007fcc: 0x4c50 LP.1 12
20007fdc: 0x4d54 MT.1 8
All the addresses in the first column should be word-aligned. The
sizes in the last column don't need to be a multiple of 4.
Change-Id: I91f9c29701a007ef8a56b5b7e0ea09930dfbea31
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175591
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Fan no longer needs a special priority to wait for the host memmap to
become available, since LPC inits earlier.
I2C and PECI don't need explicit ordering on freq change.
Thermal now uses the explicit prio for temp sensors done.
Commented hook test.
BUG=chromium:314768
BRANCH=none
TEST=boot link; enable/disable PLL; verify fanset and temps commands work afterwards.
Change-Id: I71766614dff2950dd307acd0635405e6b59e330a
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175601
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
This adds explicit "int fan" args to the exported functions from
common/fan.c: fan_set_percent_needed() and fan_percent_to_rpm(). Within that
file, multiple fans are handled independently.
This is not complete, though. Host commands and sysjump support still only
handle a single fan, so at the moment multiple fans are treated identically
in those cases.
BUG=chrome-os-partner:23530
BRANCH=none
TEST=manual
All boards build, "make runtests" passes.
On a multi-fan system, the EC command "faninfo" displays multiple results:
> faninfo
Fan 0 Actual: 0 rpm
Fan 0 Target: 0 rpm
Fan 0 Duty: 0%
Fan 0 Status: 0 (not spinning)
Fan 0 Mode: rpm
Fan 0 Auto: yes
Fan 0 Enable: yes
Fan 1 Actual: 0 rpm
Fan 1 Target: 0 rpm
Fan 1 Duty: 0%
Fan 1 Status: 0 (not spinning)
Fan 1 Mode: rpm
Fan 1 Auto: no
Fan 1 Enable: no
>
and the "fanduty", "fanset", and "fanauto" all require the fan number as the
first arg:
> fanduty 0 30
Setting fan 0 duty cycle to 30%
> fanset 1 2000
Setting fan 1 rpm target to 2000
> fanauto 0
> fanauto 1
On single-fan systems, there is no visible change.
Change-Id: Idb8b818122e157960d56779b2a86e5ba433bee1b
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175368
Reviewed-by: Randall Spangler <rspangler@chromium.org>
There is a logical difference between PWM controls for things like
backlights and fan controls for actual fans. This change separates them into
two different data structures, for better abstraction.
BUG=chrome-os-partner:23530
BRANCH=none
TEST=manual
make runtests, make all boards, test on Link and Falco.
Change-Id: Ib63f2d1518fcc2ee367f81bf5d803360c1aa5c76
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175151
This looks like a lot, but it's really just moving the non-board-specific
stuff from chip/lm4/fan.c into common/fan.c, updating the appropriate
headers, and renaming functions to better match the new location.
This is entirely code refactoring and renaming. No new functionality.
BUG=chrome-os-partner:23530
BRANCH=none
TEST=manual
make runtests, build all platforms, build and test on Link.
Change-Id: I7dc03d6732bad83cf838a86600b42a7cff5aa7aa
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/175012
