STM32: Improve GPIO IRQ edge detection when waking from deepsleep

[mattbrown015]

Description

Resolves STM32L4: Incorrect GPIO Interrupts When Using MBED_TICKLESS #7493

After defining MBED_TICKLESS my InterruptIn fall handler stopped being called.

It appears that handle_interrupt_in was incorrectly deciding that a rising edge had caused the IRQ and was attempting the to call the non-existent rise handler. Hence I missed the IRQ.

This problem is something to do with transition from deepsleep, aka stop mode 2, and didn't occur when MBED_TICKLESS was undefined.

Pull request type

[X] Fix
[ ] Refactor
[ ] New target
[ ] Feature
[ ] Breaking change

[LMESTM]

Looks good to me !

[LMESTM]

@mattbrown015 thanks for your contribution !
Needs to be tested to check it works well on all families of STM32.
@jeromecoutant should be able to help next week :-)

[jeromecoutant]

@jeromecoutant should be able to help next week :-)

It has been done during the week end !

I ran tests over all STM32 families => OK
CI shield tests also with all families => OK

[bcostm]

Thanks for this fix

[0xc0170]

/morph build

[mbed-ci]

Build : FAILURE

Build number : 2623
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/7510/

[jeromecoutant]

Hi
I understoood the build issue, patch is on going

[jeromecoutant]

Hi
Please merge #7539 before this one.

[0xc0170]

Please merge #7539 before this one.

Merged. @mattbrown015 Can you rebase from latest master to get the dependency in

[jeromecoutant]

Can you rebase from latest master

I don't think some rebase is needed

/morph build

[0xc0170]

I don't think some rebase is needed

OK. It was not clear how it depends on the other pull request.

[0xc0170]

Please review logs http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/7510/ - failures in linking - functions definitions are missing?

[jeromecoutant]

Yes, the correct include has been added in #7539

[0xc0170]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 2653
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/7510/

Triggering tests

/morph test
/morph uvisor-test
/morph export-build
/morph mbed2-build

[mbed-ci]

Exporter Build : SUCCESS

Build number : 2286
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/7510/

[mbed-ci]

Test : SUCCESS

Build number : 2395
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/7510/2395

[0xc0170]

/morph mbed2-build