GPIO_LEVEL interrupts broken on ESP32

[Harvie]

Hello, i am working on esp32 and tried to use this:

mgos_gpio_set_int_handler(MY_INTERRUPT_PIN, MGOS_GPIO_INT_LEVEL_LO, my_cb, NULL);

but callback is never called. when i use this, the callback is called properly:

mgos_gpio_set_int_handler(MY_INTERRUPT_PIN, MGOS_GPIO_INT_EDGE_NEG, my_cb, NULL);

Is there reason for this? I think that negative edge should trigger LEVEL_LO as well.. Am i right?

Problem with edge trigger is that when i miss the edge while interrupts are disabled, it will not get triggered afterwards while pin is still low. So i need to trigger on low-level instead, but it's broken :-/

[rojer]

i seem to recall that there is a hardware problem that has to do with different kinds of interrupts on the same GPIO block.
never used level interrupts myself, only edge.

[rojer]

check out section 3.14 of this document.

[Harvie]

It is working using direct ISR method, when i change

mgos_gpio_set_int_handler(MY_INTERRUPT_PIN, MGOS_GPIO_INT_LEVEL_LO, my_cb, NULL);

to

mgos_gpio_set_int_handler_isr(MY_INTERRUPT_PIN, MGOS_GPIO_INT_LEVEL_LO, my_cb, NULL);

Which means the underlying layers are working properly and bug is in mongoose.