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

91 lines
3.4 KiB
C

/*
* 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 "ble_drv.h"
#include "ble.h"
#include "py/nlr.h"
#include "shared-bindings/bleio/Service.h"
#include "shared-bindings/bleio/Adapter.h"
void common_hal_bleio_service_add_characteristic(bleio_service_obj_t *self, bleio_characteristic_obj_t *characteristic) {
ble_gatts_char_md_t char_md = {
.char_props.broadcast = characteristic->props.broadcast,
.char_props.read = characteristic->props.read,
.char_props.write_wo_resp = characteristic->props.write_wo_resp,
.char_props.write = characteristic->props.write,
.char_props.notify = characteristic->props.notify,
.char_props.indicate = characteristic->props.indicate,
};
ble_gatts_attr_md_t cccd_md = {
.vloc = BLE_GATTS_VLOC_STACK,
};
if (char_md.char_props.notify || char_md.char_props.indicate) {
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm);
char_md.p_cccd_md = &cccd_md;
}
ble_uuid_t uuid = {
.type = BLE_UUID_TYPE_BLE,
.uuid = characteristic->uuid->value[0] | (characteristic->uuid->value[1] << 8),
};
if (characteristic->uuid->type == UUID_TYPE_128BIT)
uuid.type = characteristic->uuid->uuid_vs_idx;
ble_gatts_attr_md_t attr_md = {
.vloc = BLE_GATTS_VLOC_STACK,
.vlen = 1,
};
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);
ble_gatts_attr_t attr_char_value = {
.p_uuid = &uuid,
.p_attr_md = &attr_md,
.init_len = sizeof(uint8_t),
.max_len = (BLE_GATT_ATT_MTU_DEFAULT - 3),
};
ble_gatts_char_handles_t handles;
uint32_t err_code;
err_code = sd_ble_gatts_characteristic_add(self->handle, &char_md, &attr_char_value, &handles);
if (err_code != NRF_SUCCESS) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError,
"Failed to add characteristic, status: 0x%08lX", err_code));
}
characteristic->user_desc_handle = handles.user_desc_handle;
characteristic->cccd_handle = handles.cccd_handle;
characteristic->sccd_handle = handles.sccd_handle;
characteristic->handle = handles.value_handle;
}