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btstack/test/pts/gatt_profiles.c

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/*
* 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__ "gatt_profiles.c"
// *****************************************************************************
/* EXAMPLE_START(le_counter): LE Peripheral - Heartbeat Counter over GATT
*
* @text All newer operating systems provide GATT Client functionality.
* The LE Counter examples demonstrates how to specify a minimal GATT Database
* with a custom GATT Service and a custom Characteristic that sends periodic
* notifications.
*/
// *****************************************************************************
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "gatt_profiles.h"
#include "btstack.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 $le_counter.gatt$.
* 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 int le_notification_enabled;
static btstack_packet_callback_registration_t hci_event_callback_registration;
static uint8_t battery = 100;
static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
static uint16_t att_read_callback(hci_con_handle_t con_handle, uint16_t att_handle, uint16_t offset, uint8_t * buffer, uint16_t buffer_size);
static int att_write_callback(hci_con_handle_t con_handle, uint16_t att_handle, uint16_t transaction_mode, uint16_t offset, uint8_t *buffer, uint16_t buffer_size);
const uint8_t adv_data[] = {
// Flags general discoverable, BR/EDR not supported
0x02, 0x01, 0x06,
// Name
0x0b, 0x09, 'L', 'E', ' ', 'C', 'o', 'u', 'n', 't', 'e', 'r',
};
const uint8_t adv_data_len = sizeof(adv_data);
/* 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:
le_notification_enabled = 0;
break;
case ATT_EVENT_CAN_SEND_NOW:
// att_server_notify(con_handle, ATT_CHARACTERISTIC_0000FF11_0000_1000_8000_00805F9B34FB_01_VALUE_HANDLE, (uint8_t*) counter_string, counter_string_len);
break;
}
break;
}
}
// ATT Client Read Callback for Dynamic Data
// - if buffer == NULL, don't copy data, just return size of value
// - if buffer != NULL, copy data and return number bytes copied
// @param offset defines start of attribute value
static uint16_t att_read_callback(hci_con_handle_t connection_handle, uint16_t att_handle, uint16_t offset, uint8_t * buffer, uint16_t buffer_size){
UNUSED(connection_handle);
UNUSED(att_handle);
UNUSED(offset);
UNUSED(buffer);
UNUSED(buffer_size);
// if (att_handle == ATT_CHARACTERISTIC_0000FF11_0000_1000_8000_00805F9B34FB_01_VALUE_HANDLE){
// return att_read_callback_handle_blob((const uint8_t *)counter_string, buffer_size, offset, buffer, buffer_size);
// }
return 0;
}
/* LISTING_END */
/*
* @section ATT Write
*
* @text The only valid ATT write in this example is to the Client Characteristic Configuration, which configures notification
* and indication. If the ATT handle matches the client configuration handle, the new configuration value is stored and used
* in the heartbeat handler to decide if a new value should be sent. See Listing attWrite.
*/
/* LISTING_START(attWrite): ATT Write */
static int att_write_callback(hci_con_handle_t connection_handle, uint16_t att_handle, uint16_t transaction_mode, uint16_t offset, uint8_t *buffer, uint16_t buffer_size){
UNUSED(connection_handle);
UNUSED(att_handle);
UNUSED(transaction_mode);
UNUSED(offset);
UNUSED(buffer);
UNUSED(buffer_size);
// if (att_handle != ATT_CHARACTERISTIC_0000FF11_0000_1000_8000_00805F9B34FB_01_CLIENT_CONFIGURATION_HANDLE) return 0;
// le_notification_enabled = little_endian_read_16(buffer, 0) == GATT_CLIENT_CHARACTERISTICS_CONFIGURATION_NOTIFICATION;
// con_handle = connection_handle;
return 0;
}
/* LISTING_END */
static void show_usage(void){
printf("## BAS\n");
printf("a - send 50%% battery level\n");
}
static void stdin_process(char c){
switch (c){
case 'a': // accept just works
printf("BAS: Sending 50%% battery level\n");
battery_service_server_set_battery_value(50);
break;
case 'c':
break;
default:
show_usage();
break;
}
}
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, att_read_callback, att_write_callback);
att_server_register_packet_handler(packet_handler);
// setup battery service
battery_service_server_init(battery);
// setup device information service
device_information_service_server_init();
device_information_service_server_set_pnp_id(1, BLUETOOTH_COMPANY_ID_BLUEKITCHEN_GMBH, 0x0001, 0x001);
// 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);
btstack_stdin_setup(stdin_process);
// turn on!
hci_power_control(HCI_POWER_ON);
return 0;
}
/* EXAMPLE_END */
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