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esp8266/machine_pin: Disable ets_loop_iter during hard IRQ handler.

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Otherwise ets_loop_iter may be reentered.  Related to issue #5714.
This commit is contained in:
Damien George 2020-03-04 13:31:36 +11:00
parent 4fda7a5b44
commit a017576706
1 changed files with 8 additions and 4 deletions
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12
ports/esp8266/machine_pin.c
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@ -37,6 +37,7 @@
#include "py/gc.h"
#include "py/mphal.h"
#include "extmod/virtpin.h"
#include "ets_alt_task.h"
#include "modmachine.h"
#define GET_TRIGGER(phys_port) \
@ -103,23 +104,26 @@ void pin_init0(void) {
}
void pin_intr_handler(uint32_t status) {
mp_sched_lock();
gc_lock();
status &= 0xffff;
for (int p = 0; status; ++p, status >>= 1) {
if (status & 1) {
mp_obj_t handler = MP_STATE_PORT(pin_irq_handler)[p];
if (handler != MP_OBJ_NULL) {
if (pin_irq_is_hard[p]) {
int orig_ets_loop_iter_disable = ets_loop_iter_disable;
ets_loop_iter_disable = 1;
mp_sched_lock();
gc_lock();
mp_call_function_1_protected(handler, MP_OBJ_FROM_PTR(&pyb_pin_obj[p]));
gc_unlock();
mp_sched_unlock();
ets_loop_iter_disable = orig_ets_loop_iter_disable;
} else {
mp_sched_schedule(handler, MP_OBJ_FROM_PTR(&pyb_pin_obj[p]));
}
}
}
}
gc_unlock();
mp_sched_unlock();
}
pyb_pin_obj_t *mp_obj_get_pin_obj(mp_obj_t pin_in) {