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* 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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