bd01d31542
This can be used where the standard API calls for a list of pins, to check that they satisfy the requirements of the rp2pio state machine, e.g.,
```python
def __init__(self, pin_a, pin_b):
if not rp2pio.pins_are_sequential([pin_a, pin_b]):
raise ValueError("Pins must be sequential")
```
61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "bindings/rp2pio/StateMachine.h"
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#include "bindings/rp2pio/__init__.h"
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//| """Hardware interface to RP2 series' programmable IO (PIO) peripheral."""
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//|
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//| def pins_are_sequential(pins: List[microcontroller.Pin]) -> bool:
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//| """Return True if the pins have sequential GPIO numbers, False otherwise"""
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//| ...
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//|
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STATIC mp_obj_t rp2pio_pins_are_sequential(const mp_obj_t pins) {
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size_t len;
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mp_obj_t *items;
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mp_obj_get_array(pins, &len, &items);
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return mp_obj_new_bool(common_hal_rp2pio_pins_are_sequential(len, items));
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(rp2pio_pins_are_sequential_obj, rp2pio_pins_are_sequential);
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STATIC const mp_rom_map_elem_t rp2pio_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_rp2pio) },
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{ MP_ROM_QSTR(MP_QSTR_StateMachine), MP_ROM_PTR(&rp2pio_statemachine_type) },
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{ MP_ROM_QSTR(MP_QSTR_pins_are_sequential), MP_ROM_PTR(&rp2pio_pins_are_sequential_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(rp2pio_module_globals, rp2pio_module_globals_table);
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const mp_obj_module_t rp2pio_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t*)&rp2pio_module_globals,
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};
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