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ble_service.c
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ble_service.c
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/**
* Copyright (c) 2013 - 2021, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "sdk_common.h"
#include "ble_service.h"
#include "ble_srv_common.h"
static void on_write(ble_service_t *p_ble_service, ble_evt_t const *p_ble_evt) {
ble_gatts_evt_write_t const *p_evt_write =
&p_ble_evt->evt.gatts_evt.params.write;
if ((p_evt_write->handle
== p_ble_service->device_aggregator_char_handles.cccd_handle)
&& (p_ble_service->ble_service_notify_state_event_handler != NULL)) {
if (p_evt_write->len == 2) {
if (ble_srv_is_notification_enabled(p_evt_write->data)) {
//Notify On
p_ble_service->ble_service_notify_state_event_handler(
p_ble_evt->evt.gap_evt.conn_handle, p_ble_service,
BLE_AGGREGATOR_CHAR, 0x01);
} else {
//Notify Off
p_ble_service->ble_service_notify_state_event_handler(
p_ble_evt->evt.gap_evt.conn_handle, p_ble_service,
BLE_AGGREGATOR_CHAR, 0x00);
}
}
} else if ((p_evt_write->handle
== p_ble_service->device_aggregator_char_handles.value_handle)
&& (p_ble_service->ble_write_handler != NULL)) {
if (p_evt_write->len > 0) {
p_ble_service->ble_write_handler(p_ble_evt->evt.gap_evt.conn_handle,
p_ble_service, BLE_AGGREGATOR_CHAR, p_evt_write->data,
p_evt_write->len);
}
} else if ((p_evt_write->handle
== p_ble_service->device_stream_char_handles.cccd_handle)
&& (p_ble_service->ble_service_notify_state_event_handler != NULL)) {
if (p_evt_write->len == 2) {
if (ble_srv_is_notification_enabled(p_evt_write->data)) {
//Notify On
p_ble_service->ble_service_notify_state_event_handler(
p_ble_evt->evt.gap_evt.conn_handle, p_ble_service,
BLE_STREAM_CHAR, 0x01);
} else {
//Notify Off
p_ble_service->ble_service_notify_state_event_handler(
p_ble_evt->evt.gap_evt.conn_handle, p_ble_service,
BLE_STREAM_CHAR, 0x00);
}
}
} else if ((p_evt_write->handle
== p_ble_service->device_stream_char_handles.value_handle)
&& (p_ble_service->ble_write_handler != NULL)) {
if (p_evt_write->len > 0) {
p_ble_service->ble_write_handler(p_ble_evt->evt.gap_evt.conn_handle,
p_ble_service, BLE_STREAM_CHAR, p_evt_write->data,
p_evt_write->len);
}
}
}
void ble_service_on_ble_evt(ble_evt_t const *p_ble_evt, void *p_context) {
ble_service_t *p_ble_service = (ble_service_t*) p_context;
switch (p_ble_evt->header.evt_id) {
case BLE_GATTS_EVT_WRITE:
on_write(p_ble_service, p_ble_evt);
break;
case BLE_GATTS_EVT_HVN_TX_COMPLETE:
if (p_ble_service->ble_service_tx_complete_handler != NULL) {
p_ble_service->ble_service_tx_complete_handler(
p_ble_evt->evt.gap_evt.conn_handle, p_ble_service);
}
break;
default:
// No implementation needed.
break;
}
}
static uint32_t device_model_number_char_add(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
unsigned char init_data[] = { "AA-MB-01" };
ble_add_char_params_t add_char_params;
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = DEVICE_MODEL_NUMBER_UUID_CHAR;
add_char_params.init_len = 8;
add_char_params.max_len = 8;
add_char_params.char_props.read = 1;
add_char_params.p_init_value = init_data;
add_char_params.read_access = SEC_OPEN;
return characteristic_add(p_service->device_service_handle,
&add_char_params, &p_service->device_info_model_number_handles);
}
static uint32_t device_serial_number_char_add(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
unsigned char init_data[] = { "0000000000000000" };
ble_add_char_params_t add_char_params;
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = DEVICE_SERIAL_NUMBER_UUID_CHAR;
add_char_params.init_len = 16;
add_char_params.max_len = 16;
add_char_params.char_props.read = 1;
add_char_params.p_init_value = init_data;
add_char_params.read_access = SEC_OPEN;
return characteristic_add(p_service->device_service_handle,
&add_char_params, &p_service->device_info_serial_number_handles);
}
static uint32_t device_hw_revision_char_add(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
unsigned char init_data[] = { "0.0.1" };
ble_add_char_params_t add_char_params;
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = DEVICE_HW_REVISION_UUID_CHAR;
add_char_params.init_len = 5;
add_char_params.max_len = 5;
add_char_params.char_props.read = 1;
add_char_params.p_init_value = init_data;
add_char_params.read_access = SEC_OPEN;
return characteristic_add(p_service->device_service_handle,
&add_char_params, &p_service->device_info_hw_revision_handles);
}
static uint32_t device_sw_revision_char_add(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
unsigned char init_data[] = { "0.0.1" };
ble_add_char_params_t add_char_params;
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = DEVICE_SW_REVISION_UUID_CHAR;
add_char_params.init_len = 5;
add_char_params.max_len = 5;
add_char_params.char_props.read = 1;
add_char_params.p_init_value = init_data;
add_char_params.read_access = SEC_OPEN;
return characteristic_add(p_service->device_service_handle,
&add_char_params, &p_service->device_info_sw_revision_handles);
}
static uint32_t device_manufacturer_char_add(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
unsigned char init_data[] = { "AXDEN" };
ble_add_char_params_t add_char_params;
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = DEVCIE_MANUFACTURER_CHAR;
add_char_params.init_len = sizeof(init_data) - 1;
add_char_params.max_len = sizeof(init_data) - 1;
add_char_params.char_props.read = 1;
add_char_params.p_init_value = init_data;
add_char_params.read_access = SEC_OPEN;
return characteristic_add(p_service->device_service_handle,
&add_char_params, &p_service->device_info_manufacturer_handles);
}
uint32_t ble_service_device_info_init(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
uint32_t err_code;
ble_uuid_t ble_uuid;
BLE_UUID_BLE_ASSIGN(ble_uuid, DEVICE_INFO_UUID_SERVICE);
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &ble_uuid,
&p_service->device_info_service_handle);
VERIFY_SUCCESS(err_code);
err_code = device_model_number_char_add(p_service, p_service_init);
VERIFY_SUCCESS(err_code);
err_code = device_serial_number_char_add(p_service, p_service_init);
VERIFY_SUCCESS(err_code);
err_code = device_hw_revision_char_add(p_service, p_service_init);
VERIFY_SUCCESS(err_code);
err_code = device_sw_revision_char_add(p_service, p_service_init);
VERIFY_SUCCESS(err_code);
err_code = device_manufacturer_char_add(p_service, p_service_init);
VERIFY_SUCCESS(err_code);
return NRF_SUCCESS;
}
static uint32_t device_aggregator_data_char_add(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
ble_add_char_params_t add_char_params;
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = BLE_UUID_AGGREGATOR_DEVICE_CHAR;
add_char_params.uuid_type = p_service->uuid_type;
add_char_params.init_len = 213;
add_char_params.max_len = 213;
add_char_params.is_var_len = true;
add_char_params.char_props.notify = 1;
add_char_params.char_props.write = 1;
add_char_params.cccd_write_access = SEC_OPEN;
add_char_params.write_access = SEC_OPEN;
return characteristic_add(p_service->device_service_handle,
&add_char_params, &p_service->device_aggregator_char_handles);
}
static uint32_t device_stream_data_char_add(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
ble_add_char_params_t add_char_params;
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = BLE_UUID_STREAM_DEVICE_CHAR;
add_char_params.uuid_type = p_service->uuid_type;
add_char_params.init_len = 213;
add_char_params.max_len = 213;
add_char_params.is_var_len = true;
add_char_params.char_props.notify = 1;
add_char_params.char_props.write = 1;
add_char_params.cccd_write_access = SEC_OPEN;
add_char_params.write_access = SEC_OPEN;
return characteristic_add(p_service->device_service_handle,
&add_char_params, &p_service->device_stream_char_handles);
}
uint32_t ble_service_device_init(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
uint32_t err_code;
ble_uuid_t ble_uuid;
// Add service.
ble_uuid128_t base_uuid = { BLE_UUID_BASE };
err_code = sd_ble_uuid_vs_add(&base_uuid, &p_service->uuid_type);
VERIFY_SUCCESS(err_code);
ble_uuid.type = p_service->uuid_type;
ble_uuid.uuid = BLE_UUID_DEVICE_SERVICE;
err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &ble_uuid,
&p_service->device_service_handle);
VERIFY_SUCCESS(err_code);
err_code = device_stream_data_char_add(p_service, p_service_init);
VERIFY_SUCCESS(err_code);
err_code = device_aggregator_data_char_add(p_service, p_service_init);
VERIFY_SUCCESS(err_code);
return NRF_SUCCESS;
}
uint32_t ble_service_init(ble_service_t *p_service,
const ble_service_init_t *p_service_init) {
p_service->ble_service_tx_complete_handler =
p_service_init->ble_service_tx_complete_handler;
p_service->ble_service_notify_state_event_handler =
p_service_init->ble_service_notify_state_event_handler;
p_service->ble_write_handler = p_service_init->ble_write_handler;
ble_service_device_info_init(p_service, p_service_init);
return ble_service_device_init(p_service, p_service_init);
}
uint32_t ble_service_send_aggregator_notification(uint16_t conn_handle,
ble_service_t *p_service, uint8_t *buffer, uint16_t buffer_length) {
ble_gatts_hvx_params_t params;
uint16_t len = buffer_length;
memset(¶ms, 0, sizeof(params));
params.type = BLE_GATT_HVX_NOTIFICATION;
params.handle = p_service->device_aggregator_char_handles.value_handle;
params.p_data = buffer;
params.p_len = &len;
return sd_ble_gatts_hvx(conn_handle, ¶ms);
}
uint32_t ble_service_send_stream_notification(uint16_t conn_handle,
ble_service_t *p_service, uint8_t *buffer, uint16_t buffer_length) {
ble_gatts_hvx_params_t params;
uint16_t len = buffer_length;
memset(¶ms, 0, sizeof(params));
params.type = BLE_GATT_HVX_NOTIFICATION;
params.handle = p_service->device_stream_char_handles.value_handle;
params.p_data = buffer;
params.p_len = &len;
return sd_ble_gatts_hvx(conn_handle, ¶ms);
}