kopia lustrzana https://github.com/micropython/micropython
129 wiersze
5.2 KiB
C
129 wiersze
5.2 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 Jonathan Hogg
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* Copyright (c) 2023 Damien P. George
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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/runtime.h"
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#if MICROPY_PY_MACHINE_ADC_BLOCK
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#include "py/mphal.h"
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#include "extmod/modmachine.h"
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// The port must provide implementations of these low-level ADCBlock functions.
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static void mp_machine_adc_block_print(const mp_print_t *print, machine_adc_block_obj_t *self);
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static machine_adc_block_obj_t *mp_machine_adc_block_get(mp_int_t unit);
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static void mp_machine_adc_block_bits_set(machine_adc_block_obj_t *self, mp_int_t bits);
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static machine_adc_obj_t *mp_machine_adc_block_connect(machine_adc_block_obj_t *self, mp_int_t channel_id, mp_hal_pin_obj_t pin, mp_map_t *kw_args);
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// The port provides implementations of the above in this file.
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#include MICROPY_PY_MACHINE_ADC_BLOCK_INCLUDEFILE
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static void machine_adc_block_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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machine_adc_block_obj_t *self = MP_OBJ_TO_PTR(self_in);
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mp_machine_adc_block_print(print, self);
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}
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static void machine_adc_block_init_helper(machine_adc_block_obj_t *self, size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum {
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ARG_bits,
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};
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_bits, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_pos_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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mp_int_t bits = args[ARG_bits].u_int;
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mp_machine_adc_block_bits_set(self, bits);
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}
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static mp_obj_t machine_adc_block_make_new(const mp_obj_type_t *type, size_t n_pos_args, size_t n_kw_args, const mp_obj_t *args) {
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mp_arg_check_num(n_pos_args, n_kw_args, 1, MP_OBJ_FUN_ARGS_MAX, true);
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mp_int_t unit = mp_obj_get_int(args[0]);
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machine_adc_block_obj_t *self = mp_machine_adc_block_get(unit);
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if (self == NULL) {
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mp_raise_ValueError(MP_ERROR_TEXT("invalid block id"));
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}
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mp_map_t kw_args;
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mp_map_init_fixed_table(&kw_args, n_kw_args, args + n_pos_args);
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machine_adc_block_init_helper(self, n_pos_args - 1, args + 1, &kw_args);
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return MP_OBJ_FROM_PTR(self);
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}
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static mp_obj_t machine_adc_block_init(size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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machine_adc_block_obj_t *self = pos_args[0];
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machine_adc_block_init_helper(self, n_pos_args - 1, pos_args + 1, kw_args);
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return mp_const_none;
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}
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static MP_DEFINE_CONST_FUN_OBJ_KW(machine_adc_block_init_obj, 1, machine_adc_block_init);
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static mp_obj_t machine_adc_block_connect(size_t n_pos_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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machine_adc_block_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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mp_int_t channel_id = -1;
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mp_hal_pin_obj_t pin = -1;
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if (n_pos_args == 2) {
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if (mp_obj_is_int(pos_args[1])) {
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channel_id = mp_obj_get_int(pos_args[1]);
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} else {
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pin = mp_hal_get_pin_obj(pos_args[1]);
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}
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} else if (n_pos_args == 3) {
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channel_id = mp_obj_get_int(pos_args[1]);
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pin = mp_hal_get_pin_obj(pos_args[2]);
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} else {
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mp_raise_TypeError(MP_ERROR_TEXT("too many positional args"));
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}
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machine_adc_obj_t *adc = mp_machine_adc_block_connect(self, channel_id, pin, kw_args);
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if (adc == NULL) {
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mp_raise_ValueError(MP_ERROR_TEXT("no matching ADC"));
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}
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return MP_OBJ_FROM_PTR(adc);
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}
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static MP_DEFINE_CONST_FUN_OBJ_KW(machine_adc_block_connect_obj, 2, machine_adc_block_connect);
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static const mp_rom_map_elem_t machine_adc_block_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_adc_block_init_obj) },
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{ MP_ROM_QSTR(MP_QSTR_connect), MP_ROM_PTR(&machine_adc_block_connect_obj) },
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};
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static MP_DEFINE_CONST_DICT(machine_adc_block_locals_dict, machine_adc_block_locals_dict_table);
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MP_DEFINE_CONST_OBJ_TYPE(
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machine_adc_block_type,
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MP_QSTR_ADCBlock,
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MP_TYPE_FLAG_NONE,
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make_new, machine_adc_block_make_new,
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print, machine_adc_block_print,
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locals_dict, &machine_adc_block_locals_dict
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);
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#endif // MICROPY_PY_MACHINE_ADC_BLOCK
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