circuitpython/shared-bindings/_bleio/Service.c

202 lines
8.1 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Dan Halbert for Adafruit Industries
* Copyright (c) 2018 Artur Pacholec
* Copyright (c) 2017 Glenn Ruben Bakke
*
* 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/Characteristic.h"
#include "shared-bindings/_bleio/Peripheral.h"
#include "shared-bindings/_bleio/Service.h"
#include "shared-bindings/_bleio/UUID.h"
//| .. currentmodule:: _bleio
//|
//| :class:`Service` -- BLE service
//| =========================================================
//|
//| Stores information about a BLE service and its characteristics.
//|
//| .. class:: Service
//|
//| There is no regular constructor for a Service. A new local Service can be created
//| and attached to a Peripheral by calling `add_to_peripheral()`.
//| Remote Service objects are created by `Central.discover_remote_services()`
//| or `Peripheral.discover_remote_services()`.
//|
//| .. classmethod:: add_to_peripheral(peripheral, uuid, *, secondary=False)
//|
//| Create a new Service object, identitied by the specified UUID, and add it
//| to the given Peripheral.
//|
//| To mark the service as secondary, pass `True` as :py:data:`secondary`.
//|
//| :param Peripheral peripheral: The peripheral that will provide this service
//| :param UUID uuid: The uuid of the service
//| :param bool secondary: If the service is a secondary one
//
//| :return: the new Service
//|
STATIC mp_obj_t bleio_service_add_to_peripheral(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
// class is arg[0], which we can ignore.
enum { ARG_peripheral, ARG_uuid, ARG_secondary };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_peripheral, MP_ARG_REQUIRED | MP_ARG_OBJ,},
{ MP_QSTR_uuid, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_secondary, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
};
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
const mp_obj_t peripheral_obj = args[ARG_peripheral].u_obj;
if (!MP_OBJ_IS_TYPE(peripheral_obj, &bleio_peripheral_type)) {
mp_raise_ValueError(translate("Expected a Peripheral"));
}
const mp_obj_t uuid_obj = args[ARG_uuid].u_obj;
if (!MP_OBJ_IS_TYPE(uuid_obj, &bleio_uuid_type)) {
mp_raise_ValueError(translate("Expected a UUID"));
}
const bool is_secondary = args[ARG_secondary].u_bool;
bleio_service_obj_t *service = m_new_obj(bleio_service_obj_t);
service->base.type = &bleio_service_type;
common_hal_bleio_service_construct(
service, MP_OBJ_TO_PTR(peripheral_obj), MP_OBJ_TO_PTR(uuid_obj), is_secondary);
common_hal_bleio_peripheral_add_service(peripheral_obj, service);
return MP_OBJ_FROM_PTR(service);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(bleio_service_add_to_peripheral_fun_obj, 3, bleio_service_add_to_peripheral);
STATIC MP_DEFINE_CONST_CLASSMETHOD_OBJ(bleio_service_add_to_peripheral_obj, MP_ROM_PTR(&bleio_service_add_to_peripheral_fun_obj));
//| .. attribute:: characteristics
//|
//| A tuple of :py:class:`Characteristic` designating the characteristics that are offered by this service. (read-only)
//|
STATIC mp_obj_t bleio_service_get_characteristics(mp_obj_t self_in) {
bleio_service_obj_t *self = MP_OBJ_TO_PTR(self_in);
// Return list as a tuple so user won't be able to change it.
mp_obj_list_t *char_list = common_hal_bleio_service_get_characteristic_list(self);
return mp_obj_new_tuple(char_list->len, char_list->items);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_service_get_characteristics_obj, bleio_service_get_characteristics);
const mp_obj_property_t bleio_service_characteristics_obj = {
.base.type = &mp_type_property,
.proxy = { (mp_obj_t)&bleio_service_get_characteristics_obj,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj },
};
//| .. attribute:: remote
//|
//| True if this is a service provided by a remote device. (read-only)
//|
STATIC mp_obj_t bleio_service_get_remote(mp_obj_t self_in) {
bleio_service_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_bool(common_hal_bleio_service_get_is_remote(self));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_service_get_remote_obj, bleio_service_get_remote);
const mp_obj_property_t bleio_service_remote_obj = {
.base.type = &mp_type_property,
.proxy = { (mp_obj_t)&bleio_service_get_remote_obj,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj },
};
//| .. attribute:: secondary
//|
//| True if this is a secondary service. (read-only)
//|
STATIC mp_obj_t bleio_service_get_secondary(mp_obj_t self_in) {
bleio_service_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_bool(common_hal_bleio_service_get_is_secondary(self));
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_service_get_secondary_obj, bleio_service_get_secondary);
const mp_obj_property_t bleio_service_secondary_obj = {
.base.type = &mp_type_property,
.proxy = { (mp_obj_t)&bleio_service_get_secondary_obj,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj },
};
//| .. attribute:: uuid
//|
//| The UUID of this service. (read-only)
//| Will be ``None`` if the 128-bit UUID for this service is not known.
//|
STATIC mp_obj_t bleio_service_get_uuid(mp_obj_t self_in) {
bleio_service_obj_t *self = MP_OBJ_TO_PTR(self_in);
bleio_uuid_obj_t *uuid = common_hal_bleio_service_get_uuid(self);
return uuid ? MP_OBJ_FROM_PTR(uuid) : mp_const_none;
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(bleio_service_get_uuid_obj, bleio_service_get_uuid);
const mp_obj_property_t bleio_service_uuid_obj = {
.base.type = &mp_type_property,
.proxy = { (mp_obj_t)&bleio_service_get_uuid_obj,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj },
};
STATIC const mp_rom_map_elem_t bleio_service_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_add_to_peripheral), MP_ROM_PTR(&bleio_service_add_to_peripheral_obj) },
{ MP_ROM_QSTR(MP_QSTR_characteristics), MP_ROM_PTR(&bleio_service_characteristics_obj) },
{ MP_ROM_QSTR(MP_QSTR_secondary), MP_ROM_PTR(&bleio_service_secondary_obj) },
{ MP_ROM_QSTR(MP_QSTR_uuid), MP_ROM_PTR(&bleio_service_uuid_obj) },
};
STATIC MP_DEFINE_CONST_DICT(bleio_service_locals_dict, bleio_service_locals_dict_table);
STATIC void bleio_service_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
bleio_service_obj_t *self = MP_OBJ_TO_PTR(self_in);
if (self->uuid) {
mp_printf(print, "Service(");
bleio_uuid_print(print, MP_OBJ_FROM_PTR(self->uuid), kind);
mp_printf(print, ")");
} else {
mp_printf(print, "<Service with unregistered UUID>");
}
}
const mp_obj_type_t bleio_service_type = {
{ &mp_type_type },
.name = MP_QSTR_Service,
.print = bleio_service_print,
.locals_dict = (mp_obj_dict_t*)&bleio_service_locals_dict
};