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| author | Vincent Palatin <vpalatin@chromium.org> | 2014-03-17 16:52:57 -0700 |
|---|---|---|
| committer | chrome-internal-fetch <chrome-internal-fetch@google.com> | 2014-03-20 23:51:28 +0000 |
| commit | b9b5c89c301d5c7eb68b5ad5b9e05978ce93f436 (patch) | |
| tree | f175f95ccf20c4dd01b662f086ce0c2459e122b1 /include/adc.h | |
| parent | 6472ce964dba986907ee4b1a0250c8e27658a492 (diff) | |
| download | chrome-ec-b9b5c89c301d5c7eb68b5ad5b9e05978ce93f436.tar.gz | |
stm32: implement ADC support for STM32F0xx
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>
Diffstat (limited to 'include/adc.h')
| -rw-r--r-- | include/adc.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/adc.h b/include/adc.h index 3ff88b77f9..efca057445 100644 --- a/include/adc.h +++ b/include/adc.h @@ -57,4 +57,15 @@ int adc_enable_watchdog(int ain_id, int high, int low); */ int adc_disable_watchdog(void); +/** + * Set the delay between ADC watchdog samples. This can be used as a trade-off + * of power consumption and performance. + * + * @param delay_ms The delay in milliseconds between two ADC watchdog + * samples. + * + * @return EC_SUCCESS, or non-zero if any error or not supported. + */ +int adc_set_watchdog_delay(int delay_ms); + #endif /* __CROS_EC_ADC_H */ |