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StateMachine: Add in_available property

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I named the property `in_available` because it is similar to pyserial.
However, it indicates the number of words in the fifo, not the number
of bytes.
This commit is contained in:
Jeff Epler 2021-03-04 09:29:01 -06:00
parent 2ae8a44b2a
commit 68ac14b309
3 changed files with 26 additions and 1 deletions
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21
ports/raspberrypi/bindings/rp2pio/StateMachine.c
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@ -548,6 +548,24 @@ const mp_obj_property_t rp2pio_statemachine_rxstall_obj = {
(mp_obj_t)&mp_const_none_obj},
};
//| in_waiting: int
//| """The number of words available to readinto"""
//|
STATIC mp_obj_t rp2pio_statemachine_obj_get_in_waiting(mp_obj_t self_in) {
rp2pio_statemachine_obj_t *self = MP_OBJ_TO_PTR(self_in);
check_for_deinit(self);
return MP_OBJ_NEW_SMALL_INT(common_hal_rp2pio_statemachine_get_in_waiting(self));
}
MP_DEFINE_CONST_FUN_OBJ_1(rp2pio_statemachine_get_in_waiting_obj, rp2pio_statemachine_obj_get_in_waiting);
const mp_obj_property_t rp2pio_statemachine_in_waiting_obj = {
.base.type = &mp_type_property,
.proxy = {(mp_obj_t)&rp2pio_statemachine_get_in_waiting_obj,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj},
};
STATIC const mp_rom_map_elem_t rp2pio_statemachine_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&rp2pio_statemachine_deinit_obj) },
{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
@ -563,7 +581,8 @@ STATIC const mp_rom_map_elem_t rp2pio_statemachine_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_write_readinto), MP_ROM_PTR(&rp2pio_statemachine_write_readinto_obj) },
{ MP_ROM_QSTR(MP_QSTR_frequency), MP_ROM_PTR(&rp2pio_statemachine_frequency_obj) },
{ MP_ROM_QSTR(MP_QSTR_rxstall), MP_ROM_PTR(&rp2pio_statemachine_rxstall_obj) }
{ MP_ROM_QSTR(MP_QSTR_rxstall), MP_ROM_PTR(&rp2pio_statemachine_rxstall_obj) },
{ MP_ROM_QSTR(MP_QSTR_in_waiting), MP_ROM_PTR(&rp2pio_statemachine_in_waiting_obj) },
};
STATIC MP_DEFINE_CONST_DICT(rp2pio_statemachine_locals_dict, rp2pio_statemachine_locals_dict_table);

1
ports/raspberrypi/bindings/rp2pio/StateMachine.h
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@ -69,5 +69,6 @@ void common_hal_rp2pio_statemachine_set_frequency(rp2pio_statemachine_obj_t* sel
bool common_hal_rp2pio_statemachine_get_rxstall(rp2pio_statemachine_obj_t* self);
void common_hal_rp2pio_statemachine_clear_rxfifo(rp2pio_statemachine_obj_t *self);
size_t common_hal_rp2pio_statemachine_get_in_waiting(rp2pio_statemachine_obj_t *self);
#endif // MICROPY_INCLUDED_RASPBERRYPI_BINDINGS_RP2PIO_STATEMACHINE_H

5
ports/raspberrypi/common-hal/rp2pio/StateMachine.c
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@ -728,3 +728,8 @@ void common_hal_rp2pio_statemachine_clear_rxfifo(rp2pio_statemachine_obj_t *self
}
self->pio->fdebug = stall_mask;
}
size_t common_hal_rp2pio_statemachine_get_in_waiting(rp2pio_statemachine_obj_t *self) {
uint8_t level = pio_sm_get_rx_fifo_level(self->pio, self->state_machine);
return level;
}