187 lines
6.5 KiB
C
187 lines
6.5 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) 2019 Dan Halbert for Adafruit Industries
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* Copyright (c) 2018 Artur Pacholec
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* Copyright (c) 2016 Glenn Ruben Bakke
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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 <string.h>
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#include <stdio.h>
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#include "ble_drv.h"
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#include "py/objarray.h"
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#include "py/objproperty.h"
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#include "py/objstr.h"
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#include "py/runtime.h"
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#include "shared-bindings/bleio/Adapter.h"
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#include "shared-bindings/bleio/AddressType.h"
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#include "shared-bindings/bleio/Characteristic.h"
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#include "shared-bindings/bleio/Central.h"
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#include "shared-bindings/bleio/Service.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:`Central` -- A BLE central device
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//| =========================================================
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//|
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//| Implement a BLE central, which runs locally. Can connect to a given address.
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//|
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//| Usage::
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//|
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//| import bleio
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//|
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//| scanner = bleio.Scanner()
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//| entries = scanner.scan(2.5)
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//|
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//| my_entry = None
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//| for entry in entries:
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//| if entry.name is not None and entry.name == 'MyCentral':
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//| my_entry = entry
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//| break
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//|
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//| central = bleio.Central(my_entry.address)
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//| central.connect()
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//|
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//| .. class:: Central(address=None, scan_entry=None)
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//|
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//| Create a new Central object. If the `address` or :py:data:`scan_entry` parameters are not `None`,
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//| the role is set to Central, otherwise it's set to Peripheral.
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//|
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//| :param bleio.Address address: The address of the central to connect to
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//| :param bleio.ScanEntry scan_entry: The scan entry returned from `bleio.Scanner`
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//|
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STATIC mp_obj_t bleio_central_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, 0, 1, true);
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bleio_central_obj_t *self = m_new_obj(bleio_central_obj_t);
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self->base.type = &bleio_central_type;
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self->service_list = mp_obj_new_list(0, NULL);
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self->conn_handler = mp_const_none;
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self->conn_handle = 0xFFFF;
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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_address, ARG_scan_entry };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_address, MP_ARG_OBJ, {.u_obj = mp_const_none} },
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{ MP_QSTR_scan_entry, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} },
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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 address_obj = args[ARG_address].u_obj;
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const mp_obj_t scan_entry_obj = args[ARG_scan_entry].u_obj;
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if (!MP_OBJ_IS_TYPE(address_obj, &bleio_address_type)) {
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mp_raise_ValueError("Expected an Address");
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}
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return MP_OBJ_FROM_PTR(self);
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}
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//| .. method:: connect()
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//|
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//| Attempts a connection to the remote peripheral. If the connection is successful,
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//|
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STATIC mp_obj_t bleio_central_connect(mp_obj_t self_in) {
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bleio_central_obj_t *self = MP_OBJ_TO_PTR(self_in);
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if (self->is_peripheral) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
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translate("Can't connect in Peripheral mode")));
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}
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common_hal_bleio_central_connect(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_central_connect_obj, bleio_central_connect);
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//| .. method:: disconnect()
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//|
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//| Disconnects from the remote peripheral.
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//|
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STATIC mp_obj_t bleio_central_disconnect(mp_obj_t self_in) {
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bleio_central_obj_t *self = MP_OBJ_TO_PTR(self_in);
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common_hal_bleio_central_disconnect(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_central_disconnect_obj, bleio_central_disconnect);
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//| .. attribute:: remote_name (read-only)
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//|
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//| The name of the remote peripheral, if connected. May be None if no name was advertised.
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//|
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STATIC mp_obj_t bleio_central_get_remote_name(mp_obj_t self_in) {
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bleio_central_obj_t *self = MP_OBJ_TO_PTR(self_in);
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return self->remote_name;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(bleio_central_get_remote_name_obj, bleio_central_get_remote_name);
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//| .. attribute:: remote_services (read-only)
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//|
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//| Empty until connected, then a list of services provided by the remote peripheral.
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//|
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STATIC mp_obj_t bleio_central_get_remote_services(mp_obj_t self_in) {
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bleio_central_obj_t *self = MP_OBJ_TO_PTR(self_in);
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return self->service_list;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_central_get_remote_services_obj, bleio_central_get_remote_services);
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const mp_obj_property_t bleio_central_remote_services_obj = {
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.base.type = &mp_type_property,
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.proxy = { (mp_obj_t)&bleio_central_get_remote_services_obj,
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(mp_obj_t)&mp_const_none_obj,
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(mp_obj_t)&mp_const_none_obj },
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};
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STATIC const mp_rom_map_elem_t bleio_central_locals_dict_table[] = {
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// Methods
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{ MP_ROM_QSTR(MP_QSTR_connect), MP_ROM_PTR(&bleio_central_connect_obj) },
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{ MP_ROM_QSTR(MP_QSTR_disconnect), MP_ROM_PTR(&bleio_central_disconnect_obj) },
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// Properties
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{ MP_ROM_QSTR(MP_QSTR_remote_name), MP_ROM_PTR(&bleio_central_remote_name_obj) },
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{ MP_ROM_QSTR(MP_QSTR_remote_services), MP_ROM_PTR(&bleio_central_remote_services_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(bleio_central_locals_dict, bleio_central_locals_dict_table);
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const mp_obj_type_t bleio_central_type = {
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{ &mp_type_type },
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.name = MP_QSTR_Central,
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.make_new = bleio_central_make_new,
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.locals_dict = (mp_obj_dict_t*)&bleio_central_locals_dict
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};
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