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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* 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 <string.h>
#include <stdio.h>
#include "py/objproperty.h"
#include "py/objstr.h"
#include "py/runtime.h"
#include "shared-bindings/bleio/Address.h"
#include "shared-module/bleio/Address.h"
#define ADDRESS_BYTE_LEN 12
STATIC uint8_t xdigit_8b_value(byte nibble1, byte nibble2) {
return unichar_xdigit_value(nibble1) | (unichar_xdigit_value(nibble2) << 4);
}
//| .. currentmodule:: bleio
//|
//| :class:`Address` -- BLE address
//| =========================================================
//|
//| Encapsulates the address of a BLE device.
//|
//| .. class:: Address(address)
//|
//| Create a new Address object encapsulating the address value.
//| The value itself can be one of:
//|
//| - a `str` value in the format of 'XXXXXXXXXXXX' or 'XX:XX:XX:XX:XX:XX' (12 hex digits)
//| - a `bytes` or `bytearray` containing 6 bytes
//| - another Address object
//|
//| :param address: The address to encapsulate
//|
//| .. attribute:: type
//|
//| The address type. One of:
//|
//| - `bleio.AddressType.PUBLIC`
//| - `bleio.AddressType.RANDOM_STATIC`
//| - `bleio.AddressType.RANDOM_PRIVATE_RESOLVABLE`
//| - `bleio.AddressType.RANDOM_PRIVATE_NON_RESOLVABLE`
//|
STATIC mp_obj_t bleio_address_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_address };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_address, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
};
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);
bleio_address_obj_t *self = m_new_obj(bleio_address_obj_t);
self->base.type = &bleio_address_type;
self->type = ADDRESS_PUBLIC;
const mp_obj_t address = args[ARG_address].u_obj;
if (MP_OBJ_IS_STR(address)) {
GET_STR_DATA_LEN(address, str, str_len);
size_t value_index = 0;
int str_index = str_len;
bool error = false;
// Loop until fewer than two characters left.
while (str_index >= 1 && value_index < sizeof(self->value)) {
if (str[str_index] == ':') {
// Skip colon separators.
str_index--;
continue;
}
if (!unichar_isxdigit(str[str_index]) ||
!unichar_isxdigit(str[str_index-1])) {
error = true;
break;
}
self->value[value_index] = xdigit_8b_value(str[str_index],
str[str_index-1]);
value_index += 1;
str_index -= 2;
}
// Check for correct number of hex digits and no parsing errors.
if (error || value_index != ADDRESS_BYTE_LEN || str_index != -1) {
mp_raise_ValueError_varg(translate("Address is not %d bytes long or is in wrong format"),
ADDRESS_BYTE_LEN);
}
} else if (MP_OBJ_IS_TYPE(address, &mp_type_bytearray) || MP_OBJ_IS_TYPE(address, &mp_type_bytes)) {
mp_buffer_info_t buf_info;
mp_get_buffer_raise(address, &buf_info, MP_BUFFER_READ);
if (buf_info.len != BLEIO_ADDRESS_BYTES) {
mp_raise_ValueError_varg(translate("Address must be %d bytes long"), BLEIO_ADDRESS_BYTES);
}
for (size_t b = 0; b < BLEIO_ADDRESS_BYTES; ++b) {
self->value[BLEIO_ADDRESS_BYTES - b - 1] = ((uint8_t*)buf_info.buf)[b];
}
} else if (MP_OBJ_IS_TYPE(address, &bleio_address_type)) {
// deep copy
bleio_address_obj_t *other = MP_OBJ_TO_PTR(address);
self->type = other->type;
memcpy(self->value, other->value, BLEIO_ADDRESS_BYTES);
}
return MP_OBJ_FROM_PTR(self);
}
STATIC void bleio_address_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
bleio_address_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_printf(print, "Address('%02x:%02x:%02x:%02x:%02x:%02x')",
self->value[5], self->value[4], self->value[3],
self->value[2], self->value[1], self->value[0]);
}
STATIC mp_obj_t bleio_address_get_type(mp_obj_t self_in) {
bleio_address_obj_t *self = MP_OBJ_TO_PTR(self_in);
if (self->type == ADDRESS_PUBLIC) {
return (mp_obj_t)&bleio_addresstype_public_obj;
} else if (self->type == ADDRESS_RANDOM_STATIC) {
return (mp_obj_t)&bleio_addresstype_random_static_obj;
} else if (self->type == ADDRESS_RANDOM_PRIVATE_RESOLVABLE) {
return (mp_obj_t)&bleio_addresstype_random_private_resolvable_obj;
} else if (self->type == ADDRESS_RANDOM_PRIVATE_NON_RESOLVABLE) {
return (mp_obj_t)&bleio_addresstype_random_private_non_resolvable_obj;
}
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_1(bleio_address_get_type_obj, bleio_address_get_type);
const mp_obj_property_t bleio_address_type_obj = {
.base.type = &mp_type_property,
.proxy = {(mp_obj_t)&bleio_address_get_type_obj,
(mp_obj_t)&mp_const_none_obj,
(mp_obj_t)&mp_const_none_obj},
};
STATIC const mp_rom_map_elem_t bleio_address_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_type), MP_ROM_PTR(&bleio_address_type_obj) },
};
STATIC MP_DEFINE_CONST_DICT(bleio_address_locals_dict, bleio_address_locals_dict_table);
const mp_obj_type_t bleio_address_type = {
{ &mp_type_type },
.name = MP_QSTR_Address,
.print = bleio_address_print,
.make_new = bleio_address_make_new,
.locals_dict = (mp_obj_dict_t*)&bleio_address_locals_dict
};
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