mirror of
https://github.com/bluekitchen/btstack.git
synced 2025-02-20 18:40:31 +00:00
example: improve documentation for gatt_battery_query and gatt_device_information_query
This commit is contained in:
Milanka Ringwald
parent
47ecb0ae1c
commit
4c517414dd
@ -38,9 +38,15 @@
|
||||
#define BTSTACK_FILE__ "gatt_battery_query.c"
|
||||
|
||||
// *****************************************************************************
|
||||
/* EXAMPLE_START(gatt_battery_query): GATT Battery Client
|
||||
/* EXAMPLE_START(gatt_battery_query): GATT Battery Service Client
|
||||
*
|
||||
* @text This example demonstrates how to use the GATT Battery Service client to
|
||||
* receive battery level information. The client supports querying of multiple
|
||||
* battery services instances of on the remote device.
|
||||
* The example scans for remote devices and connects to the first found device
|
||||
* and starts the battery service client.
|
||||
*/
|
||||
// *****************************************************************************
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
@ -84,6 +90,48 @@ static int cmdline_addr_found = 0;
|
||||
|
||||
static btstack_packet_callback_registration_t hci_event_callback_registration;
|
||||
|
||||
/* @section Main Application Setup
|
||||
*
|
||||
* @text The Listing MainConfiguration shows how to setup Battery Service client.
|
||||
* Besides calling init() method for each service, you'll also need to register HCI packet handler
|
||||
* to handle advertisements, as well as connect and disconect events.
|
||||
*
|
||||
* @text Handling of GATT Battery Service events will be later delegated to a sepparate packet
|
||||
* handler, i.e. gatt_client_event_handler.
|
||||
*
|
||||
* @note There are two additional files associated with this client to allow a remote device to query out GATT database:
|
||||
* - gatt_battary_query.gatt - contains the declaration of the provided GATT Services and Characteristics.
|
||||
* - gatt_battary_query.h - contains the binary representation of gatt_battary_query.gatt.
|
||||
*
|
||||
* gatt_battary_query.h is generated by the build system by calling:
|
||||
* $BTSTACK_ROOT/tool/compile_gatt.py gatt_battary_query.gatt gatt_battary_query.h
|
||||
* This file needs to be regenerated when the GATT Database declared in gatt_battary_query.gatt file is modified.
|
||||
*/
|
||||
|
||||
/* LISTING_START(MainConfiguration): Setup Device Battery Client service */
|
||||
static void hci_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
|
||||
static void gatt_client_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
|
||||
|
||||
static void battery_service_client_setup(void){
|
||||
// Init L2CAP
|
||||
l2cap_init();
|
||||
|
||||
// Setup ATT server - only needed if LE Peripheral does ATT queries on its own, e.g. Android phones
|
||||
att_server_init(profile_data, NULL, NULL);
|
||||
|
||||
// GATT Client setup
|
||||
gatt_client_init();
|
||||
// Device Information Service Client setup
|
||||
battery_service_client_init();
|
||||
|
||||
sm_init();
|
||||
sm_set_io_capabilities(IO_CAPABILITY_NO_INPUT_NO_OUTPUT);
|
||||
|
||||
hci_event_callback_registration.callback = &hci_event_handler;
|
||||
hci_add_event_handler(&hci_event_callback_registration);
|
||||
}
|
||||
/* LISTING_END */
|
||||
|
||||
static int blacklist_size(void){
|
||||
return sizeof(blacklist) / sizeof(bd_addr_t);
|
||||
}
|
||||
@ -116,11 +164,114 @@ static void dump_advertising_report(uint8_t *packet){
|
||||
|
||||
}
|
||||
|
||||
static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
/* LISTING_START(packetHandler): Packet Handler */
|
||||
static void hci_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
/* LISTING_PAUSE */
|
||||
UNUSED(channel);
|
||||
UNUSED(size);
|
||||
|
||||
/* LISTING_RESUME */
|
||||
uint8_t status;
|
||||
bd_addr_t address;
|
||||
|
||||
if (packet_type != HCI_EVENT_PACKET){
|
||||
return;
|
||||
}
|
||||
|
||||
switch (hci_event_packet_get_type(packet)) {
|
||||
/* LISTING_PAUSE */
|
||||
|
||||
case BTSTACK_EVENT_STATE:
|
||||
// BTstack activated, get started
|
||||
if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break;
|
||||
if (cmdline_addr_found){
|
||||
printf("Connect to %s\n", bd_addr_to_str(cmdline_addr));
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_connect(cmdline_addr, 0);
|
||||
break;
|
||||
}
|
||||
printf("Start scanning!\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_set_scan_parameters(0,0x0030, 0x0030);
|
||||
gap_start_scan();
|
||||
break;
|
||||
|
||||
case GAP_EVENT_ADVERTISING_REPORT:
|
||||
if (app_state != APP_STATE_W4_SCAN_RESULT) return;
|
||||
|
||||
gap_event_advertising_report_get_address(packet, address);
|
||||
if (blacklist_contains(address)) {
|
||||
break;
|
||||
}
|
||||
dump_advertising_report(packet);
|
||||
|
||||
// stop scanning, and connect to the device
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_stop_scan();
|
||||
printf("Stop scan. Connect to device with addr %s.\n", bd_addr_to_str(report.address));
|
||||
gap_connect(report.address,report.address_type);
|
||||
break;
|
||||
|
||||
/* LISTING_RESUME */
|
||||
case HCI_EVENT_LE_META:
|
||||
// Wait for connection complete
|
||||
if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break;
|
||||
|
||||
/* LISTING_PAUSE */
|
||||
if (app_state != APP_STATE_W4_CONNECT) return;
|
||||
|
||||
/* LISTING_RESUME */
|
||||
// Get connection handle from event
|
||||
connection_handle = hci_subevent_le_connection_complete_get_connection_handle(packet);
|
||||
|
||||
// Connect to remote Battery Service.
|
||||
// On succesful connection, the client tries to register for notifications. If notifications
|
||||
// are not supported by remote Battery Service, the client will automatically poll the battery level - here every 2 seconds.
|
||||
// If poll_interval_ms is 0, polling is disabled, and only notifications will be received (for manual polling,
|
||||
// see battery_service_client.h).
|
||||
// All GATT Battery Service events are handled by the gatt_client_event_handler.
|
||||
status = battery_service_client_connect(connection_handle, gatt_client_event_handler, 2000, &battery_service_cid);
|
||||
btstack_assert(status == ERROR_CODE_SUCCESS);
|
||||
|
||||
app_state = APP_STATE_CONNECTED;
|
||||
printf("Battery service connected.\n");
|
||||
break;
|
||||
|
||||
case HCI_EVENT_DISCONNECTION_COMPLETE:
|
||||
connection_handle = HCI_CON_HANDLE_INVALID;
|
||||
// Disconnect battery service
|
||||
battery_service_client_disconnect(battery_service_cid);
|
||||
|
||||
/* LISTING_PAUSE */
|
||||
if (cmdline_addr_found){
|
||||
printf("Disconnected %s\n", bd_addr_to_str(cmdline_addr));
|
||||
return;
|
||||
}
|
||||
|
||||
/* LISTING_RESUME */
|
||||
printf("Disconnected %s\n", bd_addr_to_str(report.address));
|
||||
printf("Restart scan.\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_start_scan();
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* LISTING_END */
|
||||
|
||||
/* LISTING_START(gatt_client_event_handler): GATT Client Event Handler */
|
||||
// The gatt_client_event_handler receives following events from remote device:
|
||||
// - GATTSERVICE_SUBEVENT_BATTERY_SERVICE_CONNECTED
|
||||
// - GATTSERVICE_SUBEVENT_BATTERY_SERVICE_LEVEL
|
||||
//
|
||||
static void gatt_client_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
/* LISTING_PAUSE */
|
||||
UNUSED(packet_type);
|
||||
UNUSED(channel);
|
||||
UNUSED(size);
|
||||
|
||||
/* LISTING_RESUME */
|
||||
uint8_t status;
|
||||
uint8_t att_status;
|
||||
|
||||
@ -161,82 +312,7 @@ static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void hci_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
UNUSED(channel);
|
||||
UNUSED(size);
|
||||
|
||||
uint8_t status;
|
||||
bd_addr_t address;
|
||||
|
||||
if (packet_type != HCI_EVENT_PACKET){
|
||||
return;
|
||||
}
|
||||
|
||||
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) break;
|
||||
if (cmdline_addr_found){
|
||||
printf("Connect to %s\n", bd_addr_to_str(cmdline_addr));
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_connect(cmdline_addr, 0);
|
||||
break;
|
||||
}
|
||||
printf("Start scanning!\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_set_scan_parameters(0,0x0030, 0x0030);
|
||||
gap_start_scan();
|
||||
break;
|
||||
|
||||
case GAP_EVENT_ADVERTISING_REPORT:
|
||||
if (app_state != APP_STATE_W4_SCAN_RESULT) return;
|
||||
|
||||
gap_event_advertising_report_get_address(packet, address);
|
||||
if (blacklist_contains(address)) {
|
||||
break;
|
||||
}
|
||||
dump_advertising_report(packet);
|
||||
|
||||
// stop scanning, and connect to the device
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_stop_scan();
|
||||
printf("Stop scan. Connect to device with addr %s.\n", bd_addr_to_str(report.address));
|
||||
gap_connect(report.address,report.address_type);
|
||||
break;
|
||||
|
||||
case HCI_EVENT_LE_META:
|
||||
// wait for connection complete
|
||||
if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break;
|
||||
if (app_state != APP_STATE_W4_CONNECT) return;
|
||||
connection_handle = hci_subevent_le_connection_complete_get_connection_handle(packet);
|
||||
|
||||
status = battery_service_client_connect(connection_handle, handle_gatt_client_event, 2000, &battery_service_cid);
|
||||
btstack_assert(status == ERROR_CODE_SUCCESS);
|
||||
|
||||
app_state = APP_STATE_CONNECTED;
|
||||
printf("Battery service connected.\n");
|
||||
break;
|
||||
|
||||
case HCI_EVENT_DISCONNECTION_COMPLETE:
|
||||
connection_handle = HCI_CON_HANDLE_INVALID;
|
||||
// Disconnect battery service
|
||||
battery_service_client_disconnect(battery_service_cid);
|
||||
|
||||
if (cmdline_addr_found){
|
||||
printf("Disconnected %s\n", bd_addr_to_str(cmdline_addr));
|
||||
return;
|
||||
}
|
||||
|
||||
printf("Disconnected %s\n", bd_addr_to_str(report.address));
|
||||
printf("Restart scan.\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_start_scan();
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* LISTING_END */
|
||||
|
||||
int btstack_main(int argc, const char * argv[]);
|
||||
int btstack_main(int argc, const char * argv[]){
|
||||
@ -259,20 +335,7 @@ int btstack_main(int argc, const char * argv[]){
|
||||
}
|
||||
(void)argv;
|
||||
|
||||
l2cap_init();
|
||||
|
||||
// setup ATT server - only needed if LE Peripheral does ATT queries on its own, e.g. Android phones
|
||||
att_server_init(profile_data, NULL, NULL);
|
||||
|
||||
// GATT Client setup
|
||||
gatt_client_init();
|
||||
battery_service_client_init();
|
||||
|
||||
sm_init();
|
||||
sm_set_io_capabilities(IO_CAPABILITY_NO_INPUT_NO_OUTPUT);
|
||||
|
||||
hci_event_callback_registration.callback = &hci_event_handler;
|
||||
hci_add_event_handler(&hci_event_callback_registration);
|
||||
battery_service_client_setup();
|
||||
|
||||
app_state = APP_STATE_IDLE;
|
||||
|
||||
|
||||
@ -38,9 +38,15 @@
|
||||
#define BTSTACK_FILE__ "gatt_device_information_query.c"
|
||||
|
||||
// *****************************************************************************
|
||||
/* EXAMPLE_START(gatt_device_information_query): GATT Device Information Client
|
||||
/* EXAMPLE_START(gatt_device_information_query): GATT Device Information Service Client
|
||||
*
|
||||
* @text This example demonstrates how to use the GATT Device Information Service client to
|
||||
* receive device information such as various IDs and revisions. The example scans
|
||||
* for remote devices and connects to the first found device. If the remote device provides a Device
|
||||
* Information Service, the information is collected and printed in console output, otherwise,
|
||||
* the device will be blacklisted and the scan restarted.
|
||||
*/
|
||||
// *****************************************************************************
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
@ -83,6 +89,48 @@ static int cmdline_addr_found = 0;
|
||||
|
||||
static btstack_packet_callback_registration_t hci_event_callback_registration;
|
||||
|
||||
/* @section Main Application Setup
|
||||
*
|
||||
* @text The Listing MainConfiguration shows how to setup Device Information Service client.
|
||||
* Besides calling init() method for each service, you'll also need to register HCI packet handler
|
||||
* to handle advertisements, as well as connect and disconect events.
|
||||
*
|
||||
* @text Handling of GATT Device Information Service events will be later delegated to a sepparate packet
|
||||
* handler, i.e. gatt_client_event_handler.
|
||||
*
|
||||
* @note There are two additional files associated with this client to allow a remote device to query out GATT database:
|
||||
* - gatt_device_information_query.gatt - contains the declaration of the provided GATT Services and Characteristics.
|
||||
* - gatt_device_information_query.h - contains the binary representation of gatt_device_information_query.gatt.
|
||||
*
|
||||
* gatt_device_information_query.h is generated by the build system by calling:
|
||||
* $BTSTACK_ROOT/tool/compile_gatt.py gatt_device_information_query.gatt gatt_device_information_query.h
|
||||
* This file needs to be regenerated when the GATT Database declared in gatt_device_information_query.gatt file is modified.
|
||||
*/
|
||||
|
||||
/* LISTING_START(MainConfiguration): Setup Device Information Service Client service */
|
||||
static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
|
||||
static void gatt_client_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
|
||||
|
||||
static void device_information_service_client_setup(void){
|
||||
// Init L2CAP
|
||||
l2cap_init();
|
||||
|
||||
// Setup ATT server - only needed if LE Peripheral does ATT queries on its own, e.g. Android phones
|
||||
att_server_init(profile_data, NULL, NULL);
|
||||
|
||||
// GATT Client setup
|
||||
gatt_client_init();
|
||||
// Device Information Service Client setup
|
||||
device_information_service_client_init();
|
||||
|
||||
sm_init();
|
||||
sm_set_io_capabilities(IO_CAPABILITY_NO_INPUT_NO_OUTPUT);
|
||||
|
||||
hci_event_callback_registration.callback = &hci_packet_handler;
|
||||
hci_add_event_handler(&hci_event_callback_registration);
|
||||
}
|
||||
/* LISTING_END */
|
||||
|
||||
static int blacklist_size(void){
|
||||
return sizeof(blacklist) / sizeof(bd_addr_t);
|
||||
}
|
||||
@ -115,11 +163,109 @@ static void dump_advertising_report(uint8_t *packet){
|
||||
|
||||
}
|
||||
|
||||
static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
/* LISTING_START(packetHandler): Packet Handler */
|
||||
static void hci_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
/* LISTING_PAUSE */
|
||||
UNUSED(channel);
|
||||
UNUSED(size);
|
||||
|
||||
uint8_t status;
|
||||
bd_addr_t address;
|
||||
|
||||
if (packet_type != HCI_EVENT_PACKET){
|
||||
return;
|
||||
}
|
||||
|
||||
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) break;
|
||||
if (cmdline_addr_found){
|
||||
printf("Connect to %s\n", bd_addr_to_str(cmdline_addr));
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_connect(cmdline_addr, 0);
|
||||
break;
|
||||
}
|
||||
printf("Start scanning!\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_set_scan_parameters(0,0x0030, 0x0030);
|
||||
gap_start_scan();
|
||||
break;
|
||||
|
||||
case GAP_EVENT_ADVERTISING_REPORT:
|
||||
if (app_state != APP_STATE_W4_SCAN_RESULT) return;
|
||||
|
||||
gap_event_advertising_report_get_address(packet, address);
|
||||
if (blacklist_contains(address)) {
|
||||
break;
|
||||
}
|
||||
dump_advertising_report(packet);
|
||||
|
||||
// stop scanning, and connect to the device
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_stop_scan();
|
||||
printf("Stop scan. Connect to device with addr %s.\n", bd_addr_to_str(report.address));
|
||||
gap_connect(report.address,report.address_type);
|
||||
break;
|
||||
|
||||
/* LISTING_RESUME */
|
||||
case HCI_EVENT_LE_META:
|
||||
// wait for connection complete
|
||||
if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break;
|
||||
|
||||
/* LISTING_PAUSE */
|
||||
if (app_state != APP_STATE_W4_CONNECT) return;
|
||||
|
||||
/* LISTING_RESUME */
|
||||
// get connection handle from event
|
||||
connection_handle = hci_subevent_le_connection_complete_get_connection_handle(packet);
|
||||
|
||||
// Connect to remote Device Information Service. The client will query the remote service and emit events,
|
||||
// that will be passed on to gatt_client_event_handler.
|
||||
status = device_information_service_client_query(connection_handle, gatt_client_event_handler);
|
||||
btstack_assert(status == ERROR_CODE_SUCCESS);
|
||||
|
||||
printf("Device Information connected.\n");
|
||||
|
||||
app_state = APP_STATE_CONNECTED;
|
||||
break;
|
||||
/* LISTING_PAUSE */
|
||||
|
||||
case HCI_EVENT_DISCONNECTION_COMPLETE:
|
||||
connection_handle = HCI_CON_HANDLE_INVALID;
|
||||
|
||||
if (cmdline_addr_found){
|
||||
printf("Disconnected %s\n", bd_addr_to_str(cmdline_addr));
|
||||
return;
|
||||
}
|
||||
|
||||
printf("Disconnected %s\n", bd_addr_to_str(report.address));
|
||||
printf("Restart scan.\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_start_scan();
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* LISTING_END */
|
||||
|
||||
|
||||
/* LISTING_START(gatt_client_event_handler): GATT Client Event Handler */
|
||||
// The gatt_client_event_handler receives following events from remote device:
|
||||
// - GATTSERVICE_SUBEVENT_BATTERY_SERVICE_CONNECTED
|
||||
// - GATTSERVICE_SUBEVENT_BATTERY_SERVICE_LEVEL
|
||||
//
|
||||
// Event GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_DONE is received when all queries are done,
|
||||
// of if service was not found. The status field of this event indicated ATT errors (see bluetooth.h).
|
||||
|
||||
static void gatt_client_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
/* LISTING_PAUSE */
|
||||
UNUSED(packet_type);
|
||||
UNUSED(channel);
|
||||
UNUSED(size);
|
||||
|
||||
/* LISTING_RESUME */
|
||||
uint8_t att_status = 0;
|
||||
|
||||
if (hci_event_packet_get_type(packet) != HCI_EVENT_GATTSERVICE_META){
|
||||
@ -135,7 +281,10 @@ static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint
|
||||
printf("Manufacturer Name: %s\n", gattservice_subevent_device_information_manufacturer_name_get_value(packet));
|
||||
}
|
||||
break;
|
||||
|
||||
|
||||
// ...
|
||||
/* LISTING_PAUSE */
|
||||
|
||||
case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_MODEL_NUMBER:
|
||||
att_status = gattservice_subevent_device_information_model_number_get_att_status(packet);
|
||||
if (att_status != ATT_ERROR_SUCCESS){
|
||||
@ -216,92 +365,35 @@ static void handle_gatt_client_event(uint8_t packet_type, uint16_t channel, uint
|
||||
}
|
||||
break;
|
||||
|
||||
/* LISTING_RESUME */
|
||||
case GATTSERVICE_SUBEVENT_DEVICE_INFORMATION_DONE:
|
||||
att_status = gattservice_subevent_device_information_serial_number_get_att_status(packet);
|
||||
switch (att_status){
|
||||
case ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE:
|
||||
printf("Device Information service client not found.\n");
|
||||
add_to_blacklist(report.address);
|
||||
gap_disconnect(connection_handle);
|
||||
break;
|
||||
case ATT_ERROR_SUCCESS:
|
||||
printf("Query done\n");
|
||||
break;
|
||||
default:
|
||||
printf("Query failed, ATT Error 0x%02x\n", att_status);
|
||||
break;
|
||||
|
||||
}
|
||||
if (att_status != ATT_ERROR_SUCCESS){
|
||||
if (att_status == ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE)
|
||||
printf("Query failed, ATT Error 0x%02x\n", att_status);
|
||||
} else {
|
||||
printf("Query done\n");
|
||||
}
|
||||
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void hci_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
|
||||
UNUSED(channel);
|
||||
UNUSED(size);
|
||||
|
||||
uint8_t status;
|
||||
bd_addr_t address;
|
||||
|
||||
if (packet_type != HCI_EVENT_PACKET){
|
||||
return;
|
||||
}
|
||||
|
||||
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) break;
|
||||
if (cmdline_addr_found){
|
||||
printf("Connect to %s\n", bd_addr_to_str(cmdline_addr));
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_connect(cmdline_addr, 0);
|
||||
break;
|
||||
}
|
||||
printf("Start scanning!\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_set_scan_parameters(0,0x0030, 0x0030);
|
||||
gap_start_scan();
|
||||
break;
|
||||
|
||||
case GAP_EVENT_ADVERTISING_REPORT:
|
||||
if (app_state != APP_STATE_W4_SCAN_RESULT) return;
|
||||
|
||||
gap_event_advertising_report_get_address(packet, address);
|
||||
if (blacklist_contains(address)) {
|
||||
break;
|
||||
}
|
||||
dump_advertising_report(packet);
|
||||
|
||||
// stop scanning, and connect to the device
|
||||
app_state = APP_STATE_W4_CONNECT;
|
||||
gap_stop_scan();
|
||||
printf("Stop scan. Connect to device with addr %s.\n", bd_addr_to_str(report.address));
|
||||
gap_connect(report.address,report.address_type);
|
||||
break;
|
||||
|
||||
case HCI_EVENT_LE_META:
|
||||
// wait for connection complete
|
||||
if (hci_event_le_meta_get_subevent_code(packet) != HCI_SUBEVENT_LE_CONNECTION_COMPLETE) break;
|
||||
if (app_state != APP_STATE_W4_CONNECT) return;
|
||||
connection_handle = hci_subevent_le_connection_complete_get_connection_handle(packet);
|
||||
|
||||
status = device_information_service_client_query(connection_handle, handle_gatt_client_event);
|
||||
btstack_assert(status == ERROR_CODE_SUCCESS);
|
||||
|
||||
app_state = APP_STATE_CONNECTED;
|
||||
printf("Device Information connected.\n");
|
||||
break;
|
||||
|
||||
case HCI_EVENT_DISCONNECTION_COMPLETE:
|
||||
connection_handle = HCI_CON_HANDLE_INVALID;
|
||||
|
||||
if (cmdline_addr_found){
|
||||
printf("Disconnected %s\n", bd_addr_to_str(cmdline_addr));
|
||||
return;
|
||||
}
|
||||
|
||||
printf("Disconnected %s\n", bd_addr_to_str(report.address));
|
||||
printf("Restart scan.\n");
|
||||
app_state = APP_STATE_W4_SCAN_RESULT;
|
||||
gap_start_scan();
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* LISTING_END */
|
||||
|
||||
int btstack_main(int argc, const char * argv[]);
|
||||
int btstack_main(int argc, const char * argv[]){
|
||||
@ -324,20 +416,7 @@ int btstack_main(int argc, const char * argv[]){
|
||||
}
|
||||
(void)argv;
|
||||
|
||||
l2cap_init();
|
||||
|
||||
// setup ATT server - only needed if LE Peripheral does ATT queries on its own, e.g. Android phones
|
||||
att_server_init(profile_data, NULL, NULL);
|
||||
|
||||
// GATT Client setup
|
||||
gatt_client_init();
|
||||
device_information_service_client_init();
|
||||
|
||||
sm_init();
|
||||
sm_set_io_capabilities(IO_CAPABILITY_NO_INPUT_NO_OUTPUT);
|
||||
|
||||
hci_event_callback_registration.callback = &hci_event_handler;
|
||||
hci_add_event_handler(&hci_event_callback_registration);
|
||||
device_information_service_client_setup();
|
||||
|
||||
app_state = APP_STATE_IDLE;
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user