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* LICENSE: remove unnecessary (c) after CopyrightTom Hughes2019-06-191-1/+1
| | | | | | | | | | | | | | | | Ran the following command: git grep -l 'Copyright (c)' | \ xargs sed -i 's/Copyright (c)/Copyright/g' BRANCH=none BUG=none TEST=make buildall -j Change-Id: I6cc4a0f7e8b30d5b5f97d53c031c299f3e164ca7 Signed-off-by: Tom Hughes <tomhughes@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1663262 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
* PECI: Move non-chipset specific PECI code to common folderVijay Hiremath2019-05-281-9/+41
| | | | | | | | | | | | | | | | | | | | | | | The Platform Environment Control Interface (PECI) is a thermal management standard with one-wire bus interface that provides a communication channel between Intel processor and chipset components to external monitoring or control devices. As we can read the CPU temperature over PECI more accurately than the thermistors, we can eliminate usage of thermistors for reading CPU temperature. BUG=b:128666114 BRANCH=none TEST=Manually tested on Dragonegg, able read CPU temperature. Change-Id: Ie0845ca776e6a7e14511dc9315d6d83cdd5f09a6 Signed-off-by: Vijay Hiremath <vijay.p.hiremath@intel.com> Reviewed-on: https://chromium-review.googlesource.com/1622740 Commit-Ready: Vijay P Hiremath <vijay.p.hiremath@intel.com> Tested-by: Vijay P Hiremath <vijay.p.hiremath@intel.com> Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org> Reviewed-by: Jett Rink <jettrink@chromium.org>
* Switch temp sensor polling to use hooks instead of taskRandall Spangler2012-11-011-5/+6
| | | | | | | | | | | | | | This reduces memory / code size, and gets rid of ifdefs in temp_sensor.c. BUG=chrome-os-partner:15714 BRANCH=none TEST=boot system and run 'ectool temps all' every few seconds - ectool temps all The numbers should update over time. Change-Id: Idaac7e6e4cbc1d6689f5d3b607c623a5cc536a4f Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/36940
* link: Temp sensor read can return an error codeRandall Spangler2012-10-111-4/+9
| | | | | | | | | | | | | | | | | | | | | This will be used in a follow-up CL to return specific error codes (not powered, not calibrated, etc.) BUG=chrome-os-partner:15174 BRANCH=link TEST=manual Power on system. 'temps' should return all good temps. Power off system (into S5) Only ECInternal temp should work; others should return Error 1 'gpioset enable_vs 1' and wait a second Now all the I2C temps should display good data, but PECI will still be error 1. Change-Id: I925434e71653ad53ad76bad992a7a8fdeadb088c Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/35286 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
* Added HOOK_INIT for driver module initsRandall Spangler2012-04-191-3/+0
| | | | | | | | | | | | This covers modules which need to initialize before task_start(), but don't particularly care in what order they're initialized. Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=none TEST=if it boots, it works Change-Id: I69829aac8d1c3c14ee04916a794b84bbf03a09eb
* Add hooks module so modules can be notified of system-level events.Randall Spangler2012-04-191-8/+3
| | | | | | | | | | | | This will be used for sleep/wake/sysjump/etc. For now it's just wired up to clock frequency changing. Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=none TEST=manual: use nopll command, should still work Change-Id: Iedcea5830bc18eacfd955c29b8f793aba8905dd8
* Support dynamically changing the system clockRandall Spangler2012-04-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | Add nopll command to turn off the PLL, reducing the system clock to 16Mhz. Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=chrome-os-partner:8798 TEST=manual boot system press power button to boot x86 temps // should print all temperatures timerinfo timerinfo timerinfo // convince yourself this is counting up at about 1MHz nopll // this drops the system clock to 16MHz temps // should still print all temperatures timerinfo timerinfo timerinfo // should still be counting up at about 1MHz Change-Id: Ie29ceb17af348148bffadf63d60c1b731f4c3f6d
* Temperature polling and temporal correctionVic Yang2012-02-181-1/+4
| | | | | | | | | | | | | | | | A temperature polling task is added to achieve temporal correction and also reduce the latency of reading temperature. Factor out sensor specific part to keep code clean. Signed-off-by: Vic Yang <victoryang@chromium.org> BUG=chrome-os-partner:7801 TEST=On link, 'temps' shows all temperature readings. Cover each sensor with hand and see object temperature rise. Compilation succeeded on bds/adv/daisy/discovery. Change-Id: I3c44c8b2e3ab2aa9ce640d3fc25e7fba56534b86
* Fix discovery and bds builds, which don't have temp sensor or peciRandall Spangler2012-02-131-1/+2
| | | | | | | | | | | | | Remove id field from temp_sensor_t struct, since it's only used by the console command (which already knows the id, because it's looping over it). Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=none TEST='temps' Change-Id: I0970850073d644509cd5501d7ac4421c7373143b
* Add PECI module and CPU temperature monitoringRandall Spangler2012-02-101-0/+28
Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=chrome-os-partner:7493 TEST='powerbtn' to boot main processor, then 'temps' and 'pecitemp' Change-Id: Id57526ebb37c8aecb05ecebccc2824f462b9de1a
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