circuitpython/ports/nrf/common-hal/bleio/UUID.c

125 lines
4.9 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Glenn Ruben Bakke
* 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 "ble.h"
#include "ble_drv.h"
#include "common-hal/bleio/UUID.h"
#include "nrf_error.h"
#include "py/objstr.h"
#include "py/runtime.h"
#include "shared-bindings/bleio/Adapter.h"
#include "shared-bindings/bleio/UUID.h"
#define UUID_STR_16BIT_LEN 6
#define UUID_STR_128BIT_LEN 36
static uint8_t xdigit_8b_value(byte nibble1, byte nibble2) {
return unichar_xdigit_value(nibble1) |
(unichar_xdigit_value(nibble2) << 4);
}
void common_hal_bleio_uuid_construct(bleio_uuid_obj_t *self, const mp_obj_t *uuid) {
if (MP_OBJ_IS_INT(*uuid)) {
self->type = UUID_TYPE_16BIT;
self->value[1] = (mp_obj_get_int(*uuid) >> 8) & 0xFF;
self->value[0] = (mp_obj_get_int(*uuid) >> 0) & 0xFF;
return;
}
if (MP_OBJ_IS_STR(*uuid)) {
GET_STR_DATA_LEN(*uuid, str_data, str_len);
if (str_len == UUID_STR_16BIT_LEN) {
self->type = UUID_TYPE_16BIT;
self->value[0] = xdigit_8b_value(str_data[5], str_data[4]);
self->value[1] = xdigit_8b_value(str_data[3], str_data[2]);
} else if (str_len == UUID_STR_128BIT_LEN) {
self->type = UUID_TYPE_128BIT;
ble_uuid128_t vs_uuid;
vs_uuid.uuid128[0] = xdigit_8b_value(str_data[35], str_data[34]);
vs_uuid.uuid128[1] = xdigit_8b_value(str_data[33], str_data[32]);
vs_uuid.uuid128[2] = xdigit_8b_value(str_data[31], str_data[30]);
vs_uuid.uuid128[3] = xdigit_8b_value(str_data[29], str_data[28]);
vs_uuid.uuid128[4] = xdigit_8b_value(str_data[27], str_data[26]);
vs_uuid.uuid128[5] = xdigit_8b_value(str_data[25], str_data[24]);
// 23 '-'
vs_uuid.uuid128[6] = xdigit_8b_value(str_data[22], str_data[21]);
vs_uuid.uuid128[7] = xdigit_8b_value(str_data[20], str_data[19]);
// 18 '-'
vs_uuid.uuid128[8] = xdigit_8b_value(str_data[17], str_data[16]);
vs_uuid.uuid128[9] = xdigit_8b_value(str_data[15], str_data[14]);
// 13 '-'
vs_uuid.uuid128[10] = xdigit_8b_value(str_data[12], str_data[11]);
vs_uuid.uuid128[11] = xdigit_8b_value(str_data[10], str_data[9]);
// 8 '-'
self->value[0] = xdigit_8b_value(str_data[7], str_data[6]);
self->value[1] = xdigit_8b_value(str_data[5], str_data[4]);
vs_uuid.uuid128[14] = xdigit_8b_value(str_data[3], str_data[2]);
vs_uuid.uuid128[15] = xdigit_8b_value(str_data[1], str_data[0]);
common_hal_bleio_adapter_set_enabled(true);
const uint32_t err_code = sd_ble_uuid_vs_add(&vs_uuid, &self->uuid_vs_idx);
if (err_code != NRF_SUCCESS) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError,
translate("Failed to add Vendor Specific UUID, status: 0x%08lX"), err_code));
}
} else {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
translate("Invalid UUID string length")));
}
return;
}
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError,
translate("Invalid UUID parameter")));
}
void common_hal_bleio_uuid_print(bleio_uuid_obj_t *self, const mp_print_t *print) {
if (self->type == UUID_TYPE_16BIT) {
mp_printf(print, "UUID(uuid: 0x" HEX2_FMT HEX2_FMT ")",
self->value[1], self->value[0]);
} else {
mp_printf(print, "UUID(uuid: 0x" HEX2_FMT HEX2_FMT ", VS idx: " HEX2_FMT ")",
self->value[1], self->value[0], self->uuid_vs_idx);
}
}
bleio_uuid_type_t common_hal_bleio_uuid_get_type(bleio_uuid_obj_t *self) {
return self->type;
}