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nordic_spp_service_server: added service and examples

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This commit is contained in:
Milanka Ringwald 2018-10-24 13:03:33 +02:00
parent ef2faf5658
commit ebdf3c684b
9 changed files with 780 additions and 5 deletions
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18
example/Makefile.inc
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@ -155,19 +155,21 @@ EXAMPLES = \
EXAMPLES_USING_LE = \ EXAMPLES_USING_LE = \
ancs_client_demo \ ancs_client_demo \
gap_le_advertisements \
gatt_battery_query \ gatt_battery_query \
gatt_browser \ gatt_browser \
hog_keyboard_demo \
hog_mouse_demo \
le_counter \ le_counter \
le_data_channel_client \ le_data_channel_client \
le_data_channel_server \ le_data_channel_server \
le_streamer \ le_streamer \
le_streamer_client \ le_streamer_client \
spp_and_le_counter \ nordic_spp_le_counter \
gap_le_advertisements \ nordic_spp_le_streamer \
sm_pairing_peripheral \
sm_pairing_central \ sm_pairing_central \
hog_keyboard_demo \ sm_pairing_peripheral \
hog_mouse_demo \ spp_and_le_counter \
# .o for .c # .o for .c
CORE_OBJ = $(CORE:.c=.o) CORE_OBJ = $(CORE:.c=.o)
@ -320,6 +322,12 @@ le_data_channel_server: le_data_channel_server.h ${CORE_OBJ} ${COMMON_OBJ} ${ATT
mod_player: ${CORE_OBJ} ${COMMON_OBJ} ${HXCMOD_PLAYER_OBJ} btstack_audio.o mod_player.c mod_player: ${CORE_OBJ} ${COMMON_OBJ} ${HXCMOD_PLAYER_OBJ} btstack_audio.o mod_player.c
${CC} $^ ${CFLAGS} ${LDFLAGS} -o $@ ${CC} $^ ${CFLAGS} ${LDFLAGS} -o $@
nordic_spp_le_counter: nordic_spp_le_counter.h ${CORE_OBJ} ${COMMON_OBJ} ${ATT_OBJ} ${GATT_SERVER_OBJ} ${SM_OBJ} nordic_spp_service_server.o nordic_spp_le_counter.c
${CC} $(filter-out nordic_spp_le_counter.h,$^) ${CFLAGS} ${LDFLAGS} -o $@
nordic_spp_le_streamer: nordic_spp_le_streamer.h ${CORE_OBJ} ${COMMON_OBJ} ${ATT_OBJ} ${GATT_SERVER_OBJ} ${SM_OBJ} nordic_spp_service_server.o nordic_spp_le_streamer.c
${CC} $(filter-out nordic_spp_le_streamer.h,$^) ${CFLAGS} ${LDFLAGS} -o $@
clean: clean:
rm -f ${EXAMPLES} *_demo rm -f ${EXAMPLES} *_demo
rm -f *.o *.out *.hex *.exe *.wav *.sbc rm -f *.o *.out *.hex *.exe *.wav *.sbc

202
example/nordic_spp_le_counter.c Normal file
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@ -0,0 +1,202 @@
/*
* Copyright (C) 2014 BlueKitchen GmbH
*
* 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 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 the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
* RINGWALD 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.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
#define __BTSTACK_FILE__ "nordic_le_counter.c"
// *****************************************************************************
/* EXAMPLE_START(nordic_le_counter): LE Peripheral - Nordic SPP-like profile
*
*/
// *****************************************************************************
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "nordic_le_counter.h"
#include "btstack.h"
#include "ble/gatt-service/nordic_spp_service_server.h"
#define HEARTBEAT_PERIOD_MS 1000
/* @section Main Application Setup
*
* @text Listing MainConfiguration shows main application code.
* It initializes L2CAP, the Security Manager and configures the ATT Server with the pre-compiled
* ATT Database generated from $nordic_le_counter.gatt$.
* Additionally, it enables the Battery Service Server with the current battery level.
* Finally, it configures the advertisements
* and the heartbeat handler and boots the Bluetooth stack.
* In this example, the Advertisement contains the Flags attribute and the device name.
* The flag 0x06 indicates: LE General Discoverable Mode and BR/EDR not supported.
*/
/* LISTING_START(MainConfiguration): Init L2CAP SM ATT Server and start heartbeat timer */
static btstack_timer_source_t heartbeat;
static hci_con_handle_t con_handle = HCI_CON_HANDLE_INVALID;
static btstack_context_callback_registration_t send_request;
static btstack_packet_callback_registration_t hci_event_callback_registration;
const uint8_t adv_data[] = {
// Flags general discoverable, BR/EDR not supported
2, BLUETOOTH_DATA_TYPE_FLAGS, 0x06,
// Name
6, BLUETOOTH_DATA_TYPE_COMPLETE_LOCAL_NAME, 'A', 'M', 'B', 'E', 'R',
// UUID ...
17, BLUETOOTH_DATA_TYPE_COMPLETE_LIST_OF_128_BIT_SERVICE_CLASS_UUIDS, 0x6e, 0x40, 0x0, 0x1, 0xc3, 0x52, 0x11, 0xe5, 0x95, 0x3d, 0x0, 0x2, 0xa5, 0xd5, 0xc5, 0x1b,
};
const uint8_t adv_data_len = sizeof(adv_data);
/* LISTING_END */
/*
* @section Heartbeat Handler
*
* @text The heartbeat handler updates the value of the single Characteristic provided in this example,
* and request a ATT_EVENT_CAN_SEND_NOW to send a notification if enabled see Listing heartbeat.
*/
/* LISTING_START(heartbeat): Hearbeat Handler */
static int counter = 0;
static char counter_string[30];
static int counter_string_len;
static void beat(void){
counter++;
counter_string_len = sprintf(counter_string, "BTstack counter %03u", counter);
}
static void nordic_can_send(void * context){
UNUSED(context);
printf("SEND: %s\n", counter_string);
nordic_spp_service_server_send(con_handle, (uint8_t*) counter_string, counter_string_len);
}
static void heartbeat_handler(struct btstack_timer_source *ts){
if (con_handle != HCI_CON_HANDLE_INVALID) {
beat();
send_request.callback = &nordic_can_send;
nordic_spp_service_server_request_can_send_now(&send_request, con_handle);
}
btstack_run_loop_set_timer(ts, HEARTBEAT_PERIOD_MS);
btstack_run_loop_add_timer(ts);
}
/* LISTING_END */
static void nordic_data_received(hci_con_handle_t tx_con_handle, const uint8_t * data, uint16_t size){
if (size == 0 && con_handle == HCI_CON_HANDLE_INVALID ){
con_handle = tx_con_handle;
printf("Connected with handle 0x%04x\n", con_handle);
} else {
printf("RECV: ");
printf_hexdump(data, size);
}
}
/*
* @section Packet Handler
*
* @text The packet handler is used to:
* - stop the counter after a disconnect
*/
/* LISTING_START(packetHandler): Packet Handler */
static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
switch (packet_type) {
case HCI_EVENT_PACKET:
switch (hci_event_packet_get_type(packet)) {
case HCI_EVENT_DISCONNECTION_COMPLETE:
con_handle = HCI_CON_HANDLE_INVALID;
break;
default:
break;
}
break;
}
}
/* LISTING_END */
int btstack_main(void);
int btstack_main(void)
{
// register for HCI events
hci_event_callback_registration.callback = &packet_handler;
hci_add_event_handler(&hci_event_callback_registration);
l2cap_init();
// setup LE device DB
le_device_db_init();
// setup SM: Display only
sm_init();
// setup ATT server
att_server_init(profile_data, NULL, NULL);
// setup Nordic SPP service
nordic_spp_service_server_init(&nordic_data_received);
// setup advertisements
uint16_t adv_int_min = 0x0030;
uint16_t adv_int_max = 0x0030;
uint8_t adv_type = 0;
bd_addr_t null_addr;
memset(null_addr, 0, 6);
gap_advertisements_set_params(adv_int_min, adv_int_max, adv_type, 0, null_addr, 0x07, 0x00);
gap_advertisements_set_data(adv_data_len, (uint8_t*) adv_data);
gap_advertisements_enable(1);
// set one-shot timer
heartbeat.process = &heartbeat_handler;
btstack_run_loop_set_timer(&heartbeat, HEARTBEAT_PERIOD_MS);
btstack_run_loop_add_timer(&heartbeat);
// beat once
beat();
// turn on!
hci_power_control(HCI_POWER_ON);
return 0;
}
/* EXAMPLE_END */

4
example/nordic_spp_le_counter.gatt Normal file
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@ -0,0 +1,4 @@
PRIMARY_SERVICE, GAP_SERVICE
CHARACTERISTIC, GAP_DEVICE_NAME, READ, "Nordic"
#import <nordic_spp_service.gatt>

322
example/nordic_spp_le_streamer.c Normal file
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@ -0,0 +1,322 @@
/*
* Copyright (C) 2014 BlueKitchen GmbH
*
* 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 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 the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
* RINGWALD 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.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
#define __BTSTACK_FILE__ "nordic_spp_le_streamer.c"
// *****************************************************************************
/* EXAMPLE_START(nordic_spp_le_streamer): LE Streamer - Stream data over GATT.
*
* @text All newer operating systems provide GATT Client functionality.
* This example shows how to get a maximal throughput via BLE:
* - send whenever possible,
* - use the max ATT MTU.
*
* @text In theory, we should also update the connection parameters, but we already get
* a connection interval of 30 ms and there's no public way to use a shorter
* interval with iOS (if we're not implementing an HID device).
*
* @text Note: To start the streaming, run the example.
* On remote device use some GATT Explorer, e.g. LightBlue, BLExplr to enable notifications.
*/
// *****************************************************************************
#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "btstack.h"
#include "nordic_spp_le_streamer.h"
#include "ble/gatt-service/nordic_spp_service_server.h"
#define REPORT_INTERVAL_MS 3000
#define MAX_NR_CONNECTIONS 3
static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
const uint8_t adv_data[] = {
// Flags general discoverable, BR/EDR not supported
2, BLUETOOTH_DATA_TYPE_FLAGS, 0x06,
// Name
6, BLUETOOTH_DATA_TYPE_COMPLETE_LOCAL_NAME, 'A', 'M', 'B', 'E', 'R',
// UUID ...
17, BLUETOOTH_DATA_TYPE_COMPLETE_LIST_OF_128_BIT_SERVICE_CLASS_UUIDS, 0x6e, 0x40, 0x0, 0x1, 0xc3, 0x52, 0x11, 0xe5, 0x95, 0x3d, 0x0, 0x2, 0xa5, 0xd5, 0xc5, 0x1b,
};
const uint8_t adv_data_len = sizeof(adv_data);
static btstack_packet_callback_registration_t hci_event_callback_registration;
// support for multiple clients
typedef struct {
char name;
int le_notification_enabled;
hci_con_handle_t connection_handle;
int counter;
char test_data[200];
int test_data_len;
uint32_t test_data_sent;
uint32_t test_data_start;
btstack_context_callback_registration_t send_request;
} nordic_spp_le_streamer_connection_t;
static nordic_spp_le_streamer_connection_t nordic_spp_le_streamer_connections[MAX_NR_CONNECTIONS];
// round robin sending
static int connection_index;
static void init_connections(void){
// track connections
int i;
for (i=0;i<MAX_NR_CONNECTIONS;i++){
nordic_spp_le_streamer_connections[i].connection_handle = HCI_CON_HANDLE_INVALID;
nordic_spp_le_streamer_connections[i].name = 'A' + i;
}
}
static nordic_spp_le_streamer_connection_t * connection_for_conn_handle(hci_con_handle_t conn_handle){
int i;
for (i=0;i<MAX_NR_CONNECTIONS;i++){
if (nordic_spp_le_streamer_connections[i].connection_handle == conn_handle) return &nordic_spp_le_streamer_connections[i];
}
return NULL;
}
static void next_connection_index(void){
connection_index++;
if (connection_index == MAX_NR_CONNECTIONS){
connection_index = 0;
}
}
/*
* @section Track throughput
* @text We calculate the throughput by setting a start time and measuring the amount of
* data sent. After a configurable REPORT_INTERVAL_MS, we print the throughput in kB/s
* and reset the counter and start time.
*/
/* LISTING_START(tracking): Tracking throughput */
static void test_reset(nordic_spp_le_streamer_connection_t * context){
context->test_data_start = btstack_run_loop_get_time_ms();
context->test_data_sent = 0;
}
static void test_track_sent(nordic_spp_le_streamer_connection_t * context, int bytes_sent){
context->test_data_sent += bytes_sent;
// evaluate
uint32_t now = btstack_run_loop_get_time_ms();
uint32_t time_passed = now - context->test_data_start;
if (time_passed < REPORT_INTERVAL_MS) return;
// print speed
int bytes_per_second = context->test_data_sent * 1000 / time_passed;
printf("%c: %"PRIu32" bytes sent-> %u.%03u kB/s\n", context->name, context->test_data_sent, bytes_per_second / 1000, bytes_per_second % 1000);
// restart
context->test_data_start = now;
context->test_data_sent = 0;
}
/* LISTING_END(tracking): Tracking throughput */
/*
* @section Packet Handler
*
* @text The packet handler is used to stop the notifications and reset the MTU on connect
* It would also be a good place to request the connection parameter update as indicated
* in the commented code block.
*/
/* LISTING_START(packetHandler): Packet Handler */
static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
int mtu;
uint16_t conn_interval;
nordic_spp_le_streamer_connection_t * context;
switch (packet_type) {
case HCI_EVENT_PACKET:
switch (hci_event_packet_get_type(packet)) {
case BTSTACK_EVENT_STATE:
// BTstack activated, get started
if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING) {
printf("To start the streaming, please run the AMB2621 Toolbox to connect.\n");
}
break;
case HCI_EVENT_DISCONNECTION_COMPLETE:
context = connection_for_conn_handle(hci_event_disconnection_complete_get_connection_handle(packet));
if (!context) break;
// free connection
printf("%c: Disconnect, reason %02x\n", context->name, hci_event_disconnection_complete_get_reason(packet));
context->le_notification_enabled = 0;
context->connection_handle = HCI_CON_HANDLE_INVALID;
break;
case HCI_EVENT_LE_META:
switch (hci_event_le_meta_get_subevent_code(packet)) {
case HCI_SUBEVENT_LE_CONNECTION_COMPLETE:
// setup new
context = connection_for_conn_handle(HCI_CON_HANDLE_INVALID);
if (!context) break;
context->counter = 'A';
context->test_data_len = ATT_DEFAULT_MTU - 4; // -1 for nordic 0x01 packet type
context->connection_handle = hci_subevent_le_connection_complete_get_connection_handle(packet);
// print connection parameters (without using float operations)
conn_interval = hci_subevent_le_connection_complete_get_conn_interval(packet);
printf("%c: Connection Interval: %u.%02u ms\n", context->name, conn_interval * 125 / 100, 25 * (conn_interval & 3));
printf("%c: Connection Latency: %u\n", context->name, hci_subevent_le_connection_complete_get_conn_latency(packet));
break;
}
break;
case ATT_EVENT_MTU_EXCHANGE_COMPLETE:
mtu = att_event_mtu_exchange_complete_get_MTU(packet) - 3;
context = connection_for_conn_handle(att_event_mtu_exchange_complete_get_handle(packet));
if (!context) break;
context->test_data_len = btstack_min(mtu - 3, sizeof(context->test_data));
printf("%c: ATT MTU = %u => use test data of len %u\n", context->name, mtu, context->test_data_len);
break;
default:
break;
}
}
}
/* LISTING_END */
/*
* @section Streamer
*
* @text The streamer function checks if notifications are enabled and if a notification can be sent now.
* It creates some test data - a single letter that gets increased every time - and tracks the data sent.
*/
/* LISTING_START(streamer): Streaming code */
static void nordic_can_send(void * some_context){
UNUSED(some_context);
// find next active streaming connection
int old_connection_index = connection_index;
while (1){
// active found?
if ((nordic_spp_le_streamer_connections[connection_index].connection_handle != HCI_CON_HANDLE_INVALID) &&
(nordic_spp_le_streamer_connections[connection_index].le_notification_enabled)) break;
// check next
next_connection_index();
// none found
if (connection_index == old_connection_index) return;
}
nordic_spp_le_streamer_connection_t * context = &nordic_spp_le_streamer_connections[connection_index];
// create test data
context->counter++;
if (context->counter > 'Z') context->counter = 'A';
memset(context->test_data, context->counter, context->test_data_len);
// send
nordic_spp_service_server_send(context->connection_handle, (uint8_t*) context->test_data, context->test_data_len);
// track
test_track_sent(context, context->test_data_len);
// request next send event
nordic_spp_service_server_request_can_send_now(&context->send_request, context->connection_handle);
// check next
next_connection_index();
}
/* LISTING_END */
static void nordic_data_received(hci_con_handle_t tx_con_handle, const uint8_t * data, uint16_t size){
nordic_spp_le_streamer_connection_t * context = connection_for_conn_handle(tx_con_handle);
if (!context) return;
if (size == 0 && context->le_notification_enabled == 0){
context->le_notification_enabled = 1;
test_reset(context);
context->send_request.callback = &nordic_can_send;
nordic_spp_service_server_request_can_send_now(&context->send_request, context->connection_handle);
} else {
printf("RECV: ");
printf_hexdump(data, size);
test_track_sent(context, size);
}
}
int btstack_main(void);
int btstack_main(void)
{
// register for HCI events
hci_event_callback_registration.callback = &packet_handler;
hci_add_event_handler(&hci_event_callback_registration);
l2cap_init();
// setup LE device DB
le_device_db_init();
// setup SM: Display only
sm_init();
// setup ATT server
att_server_init(profile_data, NULL, NULL);
// setup Nordic SPP service
nordic_spp_service_server_init(&nordic_data_received);
// setup advertisements
uint16_t adv_int_min = 0x0030;
uint16_t adv_int_max = 0x0030;
uint8_t adv_type = 0;
bd_addr_t null_addr;
memset(null_addr, 0, 6);
gap_advertisements_set_params(adv_int_min, adv_int_max, adv_type, 0, null_addr, 0x07, 0x00);
gap_advertisements_set_data(adv_data_len, (uint8_t*) adv_data);
gap_advertisements_enable(1);
// init client state
init_connections();
// turn on!
hci_power_control(HCI_POWER_ON);
return 0;
}
/* EXAMPLE_END */

4
example/nordic_spp_le_streamer.gatt Normal file
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@ -0,0 +1,4 @@
PRIMARY_SERVICE, GAP_SERVICE
CHARACTERISTIC, GAP_DEVICE_NAME, READ, "Nordic"
#import <nordic_spp_service.gatt>

1
src/ble/gatt-service/Makefile.inc
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@ -5,4 +5,5 @@ SRC_BLE_GATT-SERVICE_FILES = \
device_information_service_server.c \ device_information_service_server.c \
heart_rate_service_server.c \ heart_rate_service_server.c \
hids_device.c \ hids_device.c \
nordic_spp_service_server.c \

7
src/ble/gatt-service/nordic_spp_service.gatt Normal file
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@ -0,0 +1,7 @@
// Specification Nordic SPP-like profile
// Nordic SPP-like
PRIMARY_SERVICE, 6E400001-B5A3-F393-E0A9-E50E24DCCA9E
CHARACTERISTIC, 6E400002-B5A3-F393-E0A9-E50E24DCCA9E, DYNAMIC | NOTIFY,
CHARACTERISTIC, 6E400003-B5A3-F393-E0A9-E50E24DCCA9E, DYNAMIC | WRITE | WRITE_WITHOUT_RESPONSE,

142
src/ble/gatt-service/nordic_spp_service_server.c Normal file
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@ -0,0 +1,142 @@
/*
* Copyright (C) 2018 BlueKitchen GmbH
*
* 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 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 the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
* RINGWALD 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.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
#define __BTSTACK_FILE__ "nordic_spp_service_server.c"
/**
* Implementation of the Nordic SPP-like profile
*
* To use with your application, add '#import <nordic_spp_service.gatt' to your .gatt file
* and call all functions below. All strings and blobs need to stay valid after calling the functions.
*/
#include "btstack_defines.h"
#include "ble/att_db.h"
#include "ble/att_server.h"
#include "btstack_util.h"
#include "bluetooth_gatt.h"
#include "ble/gatt-service/nordic_spp_service_server.h"
//
static const uint8_t nordic_spp_profile_uuid128[] = { 0x6E, 0x40, 0x00, 0x01, 0xB5, 0xA3, 0xF3, 0x93, 0xE0, 0xA9, 0xE5, 0x0E, 0x24, 0xDC, 0xCA, 0x9E };
static const uint8_t nordic_spp_rx_uuid128[] = { 0x6E, 0x40, 0x00, 0x02, 0xB5, 0xA3, 0xF3, 0x93, 0xE0, 0xA9, 0xE5, 0x0E, 0x24, 0xDC, 0xCA, 0x9E };
static const uint8_t nordic_spp_tx_uuid128[] = { 0x6E, 0x40, 0x00, 0x03, 0xB5, 0xA3, 0xF3, 0x93, 0xE0, 0xA9, 0xE5, 0x0E, 0x24, 0xDC, 0xCA, 0x9E };
static att_service_handler_t nordic_spp_service;
static void (*client_callback)(hci_con_handle_t con_handle, const uint8_t * data, uint16_t size);
static uint16_t nordic_spp_tx_value_handle;
static uint16_t nordic_spp_rx_value_handle;
static uint16_t nordic_spp_rx_client_configuration_handle;
static uint16_t nordic_spp_rx_client_configuration_value;
static uint16_t nordic_spp_service_read_callback(hci_con_handle_t con_handle, uint16_t attribute_handle, uint16_t offset, uint8_t * buffer, uint16_t buffer_size){
UNUSED(con_handle);
UNUSED(offset);
UNUSED(buffer_size);
if (attribute_handle == nordic_spp_rx_client_configuration_handle){
if (buffer){
little_endian_store_16(buffer, 0, nordic_spp_rx_client_configuration_value);
}
return 2;
}
return 0;
}
static int nordic_spp_service_write_callback(hci_con_handle_t con_handle, uint16_t attribute_handle, uint16_t transaction_mode, uint16_t offset, uint8_t *buffer, uint16_t buffer_size){
UNUSED(transaction_mode);
UNUSED(offset);
UNUSED(buffer_size);
if (attribute_handle == nordic_spp_tx_value_handle){
client_callback(con_handle, &buffer[0], buffer_size);
}
if (attribute_handle == nordic_spp_rx_client_configuration_handle){
nordic_spp_rx_client_configuration_value = little_endian_read_16(buffer, 0);
if (nordic_spp_rx_client_configuration_value){
client_callback(con_handle, NULL, 0);
}
}
return 0;
}
/**
* @brief Init Nordic SPP Service Server with ATT DB
* @param callback for tx data from peer
*/
void nordic_spp_service_server_init(void (*callback)(hci_con_handle_t con_handle, const uint8_t * data, uint16_t size)){
client_callback = callback;
// get service handle range
uint16_t start_handle = 0;
uint16_t end_handle = 0xfff;
int service_found = gatt_server_get_get_handle_range_for_service_with_uuid128(nordic_spp_profile_uuid128, &start_handle, &end_handle);
if (!service_found) return;
// get characteristic value handle and client configuration handle
nordic_spp_tx_value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid128(start_handle, end_handle, nordic_spp_tx_uuid128);
nordic_spp_rx_value_handle = gatt_server_get_value_handle_for_characteristic_with_uuid128(start_handle, end_handle, nordic_spp_rx_uuid128);
nordic_spp_rx_client_configuration_handle = gatt_server_get_client_configuration_handle_for_characteristic_with_uuid128(start_handle, end_handle, nordic_spp_rx_uuid128);
// register service with ATT Server
nordic_spp_service.start_handle = start_handle;
nordic_spp_service.end_handle = end_handle;
nordic_spp_service.read_callback = &nordic_spp_service_read_callback;
nordic_spp_service.write_callback = &nordic_spp_service_write_callback;
att_server_register_service_handler(&nordic_spp_service);
}
/**
* @brief Queue send request. When called, one packet can be send via nordic_spp_service_send below
* @param request
* @param con_handle
*/
void nordic_spp_service_server_request_can_send_now(btstack_context_callback_registration_t * request, hci_con_handle_t con_handle){
att_server_request_to_send_notification(request, con_handle);
}
/**
* @brief Send data
* @param con_handle
* @param data
* @param size
*/
int nordic_spp_service_server_send(hci_con_handle_t con_handle, const uint8_t * data, uint16_t size){
return att_server_notify(con_handle, nordic_spp_rx_value_handle, &data[0], size);
}

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/*
* Copyright (C) 2018 BlueKitchen GmbH
*
* 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 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 the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
* RINGWALD 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.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
#ifndef __NORDIC_SPP_H
#define __NORDIC_SPP_H
#include <stdint.h>
#include "bluetooth.h"
#include "btstack_defines.h"
#if defined __cplusplus
extern "C" {
#endif
/* API_START */
/**
* Implementation of the Nordic SPP-like profile
*
* To use with your application, add '#import <nordic_spp_service.gatt' to your .gatt file
* and call all functions below. All strings and blobs need to stay valid after calling the functions.
*/
/**
* @brief Init Nordic SPP Service Server with ATT DB
* @param callback for tx data from peer. Will be called with empty data after service gets activated
*/
void nordic_spp_service_server_init(void (*callback)(hci_con_handle_t con_handle, const uint8_t * data, uint16_t size));
/**
* @brief Queue send request. When called, one packet can be send via nordic_spp_service_send below
* @param request
* @param con_handle
*/
void nordic_spp_service_server_request_can_send_now(btstack_context_callback_registration_t * request, hci_con_handle_t con_handle);
/**
* @brief Send data
* @param con_handle
* @param data
* @param size
*/
int nordic_spp_service_server_send(hci_con_handle_t con_handle, const uint8_t * data, uint16_t size);
/* API_END */
#if defined __cplusplus
}
#endif
#endif