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esp8266/machine_pin: Make pin.irq arguments positional.

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All arguments to pin.irq are converted from keyword-only to positional, and
can still be specified by keyword so it's a backwards compatible change.

The default value for the "trigger" arg is changed from 0 (no trigger)
to rising+falling edge.
This commit is contained in:
Damien George 2017-03-16 17:15:34 +11:00
parent 2507c83b0e
commit 9ee4641850
1 changed files with 9 additions and 7 deletions
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16
esp8266/machine_pin.c
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@ -352,13 +352,13 @@ STATIC mp_obj_t pyb_pin_high(mp_obj_t self_in) {
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_pin_high_obj, pyb_pin_high);
// pin.irq(*, trigger, handler=None)
// pin.irq(handler=None, trigger=IRQ_FALLING|IRQ_RISING, hard=False)
STATIC mp_obj_t pyb_pin_irq(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_trigger, ARG_handler, ARG_hard };
enum { ARG_handler, ARG_trigger, ARG_hard };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_trigger, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = 0} },
{ MP_QSTR_handler, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{ MP_QSTR_hard, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
{ MP_QSTR_handler, MP_ARG_OBJ, {.u_obj = mp_const_none} },
{ MP_QSTR_trigger, MP_ARG_INT, {.u_int = GPIO_PIN_INTR_POSEDGE | GPIO_PIN_INTR_NEGEDGE} },
{ MP_QSTR_hard, MP_ARG_BOOL, {.u_bool = false} },
};
pyb_pin_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
@ -368,16 +368,18 @@ STATIC mp_obj_t pyb_pin_irq(size_t n_args, const mp_obj_t *pos_args, mp_map_t *k
nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "pin does not have IRQ capabilities"));
}
if (args[ARG_trigger].u_int != 0) {
if (n_args > 1) {
// configure irq
mp_obj_t handler = args[ARG_handler].u_obj;
uint32_t trigger = args[ARG_trigger].u_int;
if (handler == mp_const_none) {
handler = MP_OBJ_NULL;
trigger = 0;
}
ETS_GPIO_INTR_DISABLE();
MP_STATE_PORT(pin_irq_handler)[self->phys_port] = handler;
pin_irq_is_hard[self->phys_port] = args[ARG_hard].u_bool;
SET_TRIGGER(self->phys_port, args[ARG_trigger].u_int);
SET_TRIGGER(self->phys_port, trigger);
GPIO_REG_WRITE(GPIO_STATUS_W1TC_ADDRESS, 1 << self->phys_port);
ETS_GPIO_INTR_ENABLE();
}