/* * This file is part of the MicroPython project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2018 Dan Halbert for Adafruit Industries * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "py/objproperty.h" #include "py/runtime.h" #include "shared-bindings/bleio/CharacteristicBuffer.h" #include "shared-bindings/bleio/UUID.h" //| .. currentmodule:: bleio //| //| :class:`CharacteristicBuffer` -- GATT Service incoming values buffer. //| ========================================================= //| //| Accumulates a Characteristic's incoming values in a FIFO buffer. //| //| .. class:: CharacteristicBuffer(Characteristic, buffer_size=0) //| //| Create a new Characteristic object identified by the specified UUID. //| //| :param bleio.Characteristic characteristic: The characteristic to monitor //| :param int buffer_size: Size of ring buffer that stores incoming data coming from client. //| Must be >= 1. 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) { mp_arg_check_num(n_args, n_kw, 1, 2, true); bleio_characteristic_buffer_obj_t *self = m_new_obj(bleio_characteristic_buffer_obj_t); self->base.type = &bleio_characteristic_buffer_type; mp_map_t kw_args; mp_map_init_fixed_table(&kw_args, n_kw, pos_args + n_args); enum { ARG_characteristic, ARG_buffer_size, }; static const mp_arg_t allowed_args[] = { { MP_QSTR_characteristic, MP_ARG_REQUIRED | MP_ARG_OBJ }, { MP_QSTR_buffer_size, MP_ARG_REQUIRED | MP_ARG_INT }, }; mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; mp_arg_parse_all(n_args, pos_args, &kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); const mp_obj_t characteristic = args[ARG_characteristic].u_obj; const int buffer_size = args[ARG_buffer_size].u_int; if (buffer_size < 1) { mp_raise_ValueError(translate("buffer_size must be >= 1")); } if (!MP_OBJ_IS_TYPE(characteristic, &bleio_characteristic_type)) { mp_raise_ValueError(translate("Expected a Characteristic")); } self->characteristic = MP_OBJ_TO_PTR(characteristic); common_hal_bleio_characteristic_buffer_construct(self, self->characteristic, buffer_size); return MP_OBJ_FROM_PTR(self); } //| .. method:: read() //| //| Read a single byte from the buffer. If no character is available, return None. STATIC mp_obj_t bleio_characteristic_buffer_read(mp_obj_t self_in) { bleio_characteristic_buffer_obj_t *self = MP_OBJ_TO_PTR(self_in); int byte = common_hal_bleio_characteristic_buffer_read(self); if (byte == -1) { return mp_const_none; } return MP_OBJ_NEW_SMALL_INT(byte); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_characteristic_buffer_read_obj, bleio_characteristic_buffer_read); //| .. method:: deinit() //| //| Disable permanently. STATIC mp_obj_t bleio_characteristic_buffer_deinit(mp_obj_t self_in) { bleio_characteristic_buffer_obj_t *self = MP_OBJ_TO_PTR(self_in); common_hal_bleio_characteristic_buffer_deinit(self); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_characteristic_buffer_deinit_obj, bleio_characteristic_buffer_deinit); STATIC const mp_rom_map_elem_t bleio_characteristic_buffer_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&bleio_characteristic_buffer_read_obj) }, { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&bleio_characteristic_buffer_deinit_obj) }, }; STATIC MP_DEFINE_CONST_DICT(bleio_characteristic_buffer_locals_dict, bleio_characteristic_buffer_locals_dict_table); const mp_obj_type_t bleio_characteristic_buffer_type = { { &mp_type_type }, .name = MP_QSTR_CharacteristicBuffer, .make_new = bleio_characteristic_buffer_make_new, .locals_dict = (mp_obj_dict_t*)&bleio_characteristic_buffer_locals_dict };