123 lines
4.8 KiB
C
123 lines
4.8 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) 2020 Jeff Epler 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 "shared-bindings/canio/Match.h"
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#include "py/objproperty.h"
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#include "py/runtime.h"
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//| class Match:
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//| """Describe CAN bus messages to match"""
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//|
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//| def __init__(self, id: int, *, mask: Optional[int] = None, extended: bool = False) -> None:
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//| """Construct a Match with the given properties.
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//|
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//| If mask is not None, then the filter is for any id which matches all
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//| the nonzero bits in mask. Otherwise, it matches exactly the given id.
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//| If extended is true then only extended ids are matched, otherwise
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//| only standard ids are matched."""
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STATIC mp_obj_t canio_match_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
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enum { ARG_id, ARG_mask, ARG_extended, NUM_ARGS };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_id, MP_ARG_INT | MP_ARG_REQUIRED },
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{ MP_QSTR_mask, MP_ARG_OBJ, {.u_obj = mp_const_none } },
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{ MP_QSTR_extended, MP_ARG_BOOL, {.u_bool = false} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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MP_STATIC_ASSERT(MP_ARRAY_SIZE(allowed_args) == NUM_ARGS);
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mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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int id_bits = args[ARG_extended].u_bool ? 0x1fffffff : 0x7ff;
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int id = args[ARG_id].u_int;
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int mask = args[ARG_mask].u_obj == mp_const_none ? id_bits : mp_obj_get_int(args[ARG_mask].u_obj);
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if (id & ~id_bits) {
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mp_raise_ValueError_varg(translate("%q out of range"), MP_QSTR_id);
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}
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if (mask & ~id_bits) {
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mp_raise_ValueError_varg(translate("%q out of range"), MP_QSTR_mask);
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}
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canio_match_obj_t *self = mp_obj_malloc(canio_match_obj_t, &canio_match_type);
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common_hal_canio_match_construct(self, id, mask, args[ARG_extended].u_bool);
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return self;
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}
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//| id: int
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//| """The id to match"""
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STATIC mp_obj_t canio_match_id_get(mp_obj_t self_in) {
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canio_match_obj_t *self = self_in;
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return MP_OBJ_NEW_SMALL_INT(common_hal_canio_match_get_id(self));
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}
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MP_DEFINE_CONST_FUN_OBJ_1(canio_match_id_get_obj, canio_match_id_get);
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MP_PROPERTY_GETTER(canio_match_id_obj,
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(mp_obj_t)&canio_match_id_get_obj);
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//| mask: int
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//| """The optional mask of ids to match"""
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STATIC mp_obj_t canio_match_mask_get(mp_obj_t self_in) {
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canio_match_obj_t *self = self_in;
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return MP_OBJ_NEW_SMALL_INT(common_hal_canio_match_get_mask(self));
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}
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MP_DEFINE_CONST_FUN_OBJ_1(canio_match_mask_get_obj, canio_match_mask_get);
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MP_PROPERTY_GETTER(canio_match_mask_obj,
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(mp_obj_t)&canio_match_mask_get_obj);
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//| extended: bool
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//| """True to match extended ids, False to match standard ides"""
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//|
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STATIC mp_obj_t canio_match_extended_get(mp_obj_t self_in) {
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canio_match_obj_t *self = self_in;
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return mp_obj_new_bool(common_hal_canio_match_get_extended(self));
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}
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MP_DEFINE_CONST_FUN_OBJ_1(canio_match_extended_get_obj, canio_match_extended_get);
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MP_PROPERTY_GETTER(canio_match_extended_obj,
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(mp_obj_t)&canio_match_extended_get_obj);
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STATIC const mp_rom_map_elem_t canio_match_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_id), MP_ROM_PTR(&canio_match_id_obj) },
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{ MP_ROM_QSTR(MP_QSTR_mask), MP_ROM_PTR(&canio_match_mask_obj) },
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{ MP_ROM_QSTR(MP_QSTR_extended), MP_ROM_PTR(&canio_match_extended_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(canio_match_locals_dict, canio_match_locals_dict_table);
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MP_DEFINE_CONST_OBJ_TYPE(
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canio_match_type,
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MP_QSTR_Match,
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MP_TYPE_FLAG_HAS_SPECIAL_ACCESSORS,
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make_new, canio_match_make_new,
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locals_dict, &canio_match_locals_dict
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);
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