121 lines
4.8 KiB
C
121 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) 2018 Dan Halbert 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/objproperty.h"
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#include "py/runtime.h"
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#include "shared-bindings/bleio/CharacteristicBuffer.h"
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#include "shared-bindings/bleio/UUID.h"
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//| .. currentmodule:: bleio
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//|
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//| :class:`CharacteristicBuffer` -- BLE Service incoming values buffer.
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//| =====================================================================
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//|
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//| Accumulates a Characteristic's incoming values in a FIFO buffer.
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//|
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//| .. class:: CharacteristicBuffer(Characteristic, buffer_size=0)
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//|
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//| Create a new Characteristic object identified by the specified UUID.
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//|
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//| :param bleio.Characteristic characteristic: The characteristic to monitor
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//| :param int buffer_size: Size of ring buffer that stores incoming data coming from client.
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//| Must be >= 1.
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//|
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STATIC mp_obj_t bleio_characteristic_buffer_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *pos_args) {
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mp_arg_check_num(n_args, n_kw, 1, 2, true);
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bleio_characteristic_buffer_obj_t *self = m_new_obj(bleio_characteristic_buffer_obj_t);
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self->base.type = &bleio_characteristic_buffer_type;
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mp_map_t kw_args;
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mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args);
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enum { ARG_characteristic, ARG_buffer_size, };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_characteristic, MP_ARG_REQUIRED | MP_ARG_OBJ },
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{ MP_QSTR_buffer_size, MP_ARG_REQUIRED | MP_ARG_INT },
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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_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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const mp_obj_t characteristic = args[ARG_characteristic].u_obj;
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const int buffer_size = args[ARG_buffer_size].u_int;
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if (buffer_size < 1) {
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mp_raise_ValueError(translate("buffer_size must be >= 1"));
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}
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if (!MP_OBJ_IS_TYPE(characteristic, &bleio_characteristic_type)) {
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mp_raise_ValueError(translate("Expected a Characteristic"));
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}
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self->characteristic = MP_OBJ_TO_PTR(characteristic);
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common_hal_bleio_characteristic_buffer_construct(self, self->characteristic, buffer_size);
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return MP_OBJ_FROM_PTR(self);
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}
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//| .. method:: read()
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//|
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//| Read a single byte from the buffer. If no character is available, return None.
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STATIC mp_obj_t bleio_characteristic_buffer_read(mp_obj_t self_in) {
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bleio_characteristic_buffer_obj_t *self = MP_OBJ_TO_PTR(self_in);
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int byte = common_hal_bleio_characteristic_buffer_read(self);
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if (byte == -1) {
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return mp_const_none;
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}
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return MP_OBJ_NEW_SMALL_INT(byte);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_characteristic_buffer_read_obj, bleio_characteristic_buffer_read);
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//| .. method:: deinit()
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//|
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//| Disable permanently.
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STATIC mp_obj_t bleio_characteristic_buffer_deinit(mp_obj_t self_in) {
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bleio_characteristic_buffer_obj_t *self = MP_OBJ_TO_PTR(self_in);
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common_hal_bleio_characteristic_buffer_deinit(self);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_characteristic_buffer_deinit_obj, bleio_characteristic_buffer_deinit);
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STATIC const mp_rom_map_elem_t bleio_characteristic_buffer_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&bleio_characteristic_buffer_read_obj) },
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{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&bleio_characteristic_buffer_deinit_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(bleio_characteristic_buffer_locals_dict, bleio_characteristic_buffer_locals_dict_table);
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const mp_obj_type_t bleio_characteristic_buffer_type = {
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{ &mp_type_type },
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.name = MP_QSTR_CharacteristicBuffer,
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.make_new = bleio_characteristic_buffer_make_new,
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.locals_dict = (mp_obj_dict_t*)&bleio_characteristic_buffer_locals_dict
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};
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