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* stm32: implement ADC support for STM32F0xxVincent Palatin2014-03-201-0/+11
| | | | | | | | | | | | | | | | | | | | | | Replace the stubs by an actual implementation for ADC and Analog watchdog support on STM32F0xx chips. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=none BUG=none TEST=manually read ADC values on STM32F072B discovery. TEST=read all ADC values at once. TEST=Enable watchdog and check it fires when the voltage goes out of range. TEST=read ADC value(s) while watchdog is enabled. TEST=Disable watchdog and check it's actually disabled. Change-Id: Ie6fbd1aa95a3d76394fa47803e8cfc24bf5e4562 Reviewed-on: https://chromium-review.googlesource.com/190710 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org> Commit-Queue: Vincent Palatin <vpalatin@chromium.org>
* cleanup: comments in adc modulesRandall Spangler2013-10-251-1/+7
| | | | | | | | | | | | No code changes, other than renaming a couple of static functions. BUG=none BRANCH=none TEST=build falco Change-Id: I29b835d273aa1aba66d9d40536eae2eb12207f66 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/174530
* Fix ADC test for LM4Vic Yang2013-04-301-0/+2
| | | | | | | | | | | | | | | LM4 doesn't have implementation of adc_read_all_channels(). Let's use adc_read_channel() in this case. BUG=chrome-os-partner:18598 TEST=Build stress test for link. See no error about adc_read_all_channels() undefined. BRANCH=None Change-Id: I5b13384468667cbd17b83faab9f9d3fdc48de91d Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/49589 Reviewed-by: Randall Spangler <rspangler@chromium.org>
* stm32f: Add support for ADC watchdogVic Yang2013-03-131-0/+20
| | | | | | | | | | | | | | This makes it possible to have ADC module monitor an input voltage and trigger interrupt when it goes out of accepted range. BUG=chrome-os-partner:18171 TEST=Manual BRANCH=spring Change-Id: Ia0c981fadd9bcaa40afe30ca2624c2f3644b95fe Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/45277 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* Clean up ADC moduleRandall Spangler2012-10-301-15/+15
| | | | | | | | | | | | | | ADC config structs are now chip-specific; this saves code size (several hundred bytes on LM4, since no need for 24-entry ADC channel to GPIO mapping table). BUG=chrome-os-partner:15579 BRANCH=none TEST='adc' with system on and off; ChargerCurrent should be bigger when on. Change-Id: Ia88b3f043438bec049f2d2ad39fc42dcf86d9424 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/36798
* stm32f: ADC driverVic Yang2012-09-261-0/+3
| | | | | | | | | | | | | | | This adds basic ADC support for multiple channel conversion. BUG=chrome-os-partner:14316 BRANCH=none TEST=1. Boot on snow. 2. Use keyboard signal as input. Check read value changes as input signal changes. Change-Id: I3c15c37446fa9273d098f6d581573c11ced45b5e Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/33883 Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
* Added HOOK_INIT for driver module initsRandall Spangler2012-04-191-6/+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
* Clean up chip/board configs for LM4Randall Spangler2012-03-161-2/+1
| | | | | | | | | | | Board-specific features like lightbar should be config'd at the board level, not at the chip level. BUG=none TEST=build link, bds, daisy Change-Id: If1df2ca0422f7b8bdc172d0df7bd9f6a1af6a9d2 Signed-off-by: Randall Spangler <rspangler@chromium.org>
* Add forward declarations in ADC and temp_sensor headersDavid Hendricks2012-02-061-0/+3
| | | | | | | | | | | | This is a trivial patch to fix compilation for boards that are not based on LM4 (e.g. Discovery). Signed-off-by: David Hendricks <dhendrix@chromium.org> TEST=Compiled for Discovery BUG=None Change-Id: Ia1f29c61ff4a1f65fe65c43a8e58def7d1217ab2
* Fix a bug that ADC input is not correctly configured.Vic Yang2012-02-021-0/+1
| | | | | | | | | | The ADC input pin was always configured as BDS. Modified it to configure the correct pin. BUG=none TEST=On Link, "rw 0x4002451C" show 0xff instead of 0xf7. Change-Id: I1efd5cd59ad65f55cd673529afa6153add63ecac
* Refactor ADC code and add Link charger current ADC supportVic Yang2012-02-021-17/+14
| | | | | | | | | | | Refactor ADC code and move board/chip-specific part to corresponding directories. Implement function and console command to read Link charger current. BUG=chrome-os-partner:7527 TEST=Read EC temperature and POT input on BDS. Change-Id: I7fafd310ea49d9b2781f10c3453f5488da29a08a
* Initial sources import 1/3Randall Spangler2011-12-071-0/+35
source files mainly done by Randall. Signed-off-by: Randall Spangler <rspangler@chromium.org> Change-Id: Iaff83a842b17f3350fb6f2a3f1597ad4c29bd12a
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