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/*
* 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
*
* 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/ScanEntry.h"
#include "shared-bindings/bleio/Scanner.h"
#define INTERVAL_DEFAULT (0.1f)
#define INTERVAL_MIN (0.0025f)
#define INTERVAL_MIN_STRING "0.0025"
#define INTERVAL_MAX (40.959375f)
#define INTERVAL_MAX_STRING "40.959375"
#define WINDOW_DEFAULT (0.1f)
//| .. currentmodule:: bleio
//|
//| :class:`Scanner` -- scan for nearby BLE devices
//| =========================================================
//|
//| Scan for nearby BLE devices.
//|
//| Usage::
//|
//| import bleio
//| scanner = bleio.Scanner()
//| entries = scanner.scan(2.5) # Scan for 2.5 seconds
//|
//| .. class:: Scanner()
//|
//| Create a new Scanner object.
//|
STATIC mp_obj_t bleio_scanner_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *all_args, mp_map_t *kw_args) {
mp_arg_check_num(n_args, kw_args, 0, 0, false);
bleio_scanner_obj_t *self = m_new_obj(bleio_scanner_obj_t);
self->base.type = type;
common_hal_bleio_scanner_construct(self);
return MP_OBJ_FROM_PTR(self);
}
//| .. method:: scan(timeout, \*, interval=0.1, window=0.1)
//|
//| Performs a BLE scan.
//|
//| :param float timeout: the scan timeout in seconds
//| :param float interval: the interval (in seconds) between the start of two consecutive scan windows
//| Must be in the range 0.0025 - 40.959375 seconds.
//| :param float window: the duration (in seconds) to scan a single BLE channel.
//| window must be <= interval.
//| :returns: an iterable of `ScanEntry` objects
//| :rtype: iterable
//|
STATIC mp_obj_t bleio_scanner_scan(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_timeout, ARG_interval, ARG_window };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_timeout, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_interval, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
{ MP_QSTR_window, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
};
bleio_scanner_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
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_float_t timeout = mp_obj_get_float(args[ARG_timeout].u_obj);
if (args[ARG_interval].u_obj == MP_OBJ_NULL) {
args[ARG_interval].u_obj = mp_obj_new_float(INTERVAL_DEFAULT);
}
if (args[ARG_window].u_obj == MP_OBJ_NULL) {
args[ARG_window].u_obj = mp_obj_new_float(WINDOW_DEFAULT);
}
const mp_float_t interval = mp_obj_float_get(args[ARG_interval].u_obj);
if (interval < INTERVAL_MIN || interval > INTERVAL_MAX) {
mp_raise_ValueError_varg(translate("interval must be in range %s-%s"), INTERVAL_MIN_STRING, INTERVAL_MAX_STRING);
}
const mp_float_t window = mp_obj_float_get(args[ARG_window].u_obj);
if (window > interval) {
mp_raise_ValueError(translate("window must be <= interval"));
}
return common_hal_bleio_scanner_scan(self, timeout, interval, window);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_KW(bleio_scanner_scan_obj, 2, bleio_scanner_scan);
STATIC const mp_rom_map_elem_t bleio_scanner_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_scan), MP_ROM_PTR(&bleio_scanner_scan_obj) },
};
STATIC MP_DEFINE_CONST_DICT(bleio_scanner_locals_dict, bleio_scanner_locals_dict_table);
const mp_obj_type_t bleio_scanner_type = {
{ &mp_type_type },
.name = MP_QSTR_Scanner,
.make_new = bleio_scanner_make_new,
.locals_dict = (mp_obj_dict_t*)&bleio_scanner_locals_dict
};
|
