static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
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){
printf("Start scaning!\n");
gap_set_scan_parameters(0,0x0030, 0x0030);
gap_start_scan();
}
break;
case GAP_EVENT_ADVERTISING_REPORT:{
bd_addr_t address;
gap_event_advertising_report_get_address(packet, address);
uint8_t event_type = gap_event_advertising_report_get_advertising_event_type(packet);
uint8_t address_type = gap_event_advertising_report_get_address_type(packet);
int8_t rssi = gap_event_advertising_report_get_rssi(packet);
uint8_t length = gap_event_advertising_report_get_data_length(packet);
const uint8_t * data = gap_event_advertising_report_get_data(packet);
printf("Advertisement event: evt-type %u, addr-type %u, addr %s, rssi %d, data[%u] ", event_type,
address_type, bd_addr_to_str(address), rssi, length);
printf_hexdump(data, length);
dump_advertisement_data(data, length);
break;
}
default:
break;
}
}
// Either connect to remote specified on command line or start scan for device with "LE Streamer" in advertisement
static void le_streamer_client_start(void){
if (cmdline_addr_found){
printf("Connect to %s\n", bd_addr_to_str(cmdline_addr));
state = TC_W4_CONNECT;
gap_connect(cmdline_addr, 0);
} else {
printf("Start scanning!\n");
state = TC_W4_SCAN_RESULT;
gap_set_scan_parameters(0,0x0030, 0x0030);
gap_start_scan();
}
}
/* LISTING_START(GATTBrowserHCIPacketHandler): Connecting and disconnecting from the GATT client */
static void handle_hci_event(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
if (packet_type != HCI_EVENT_PACKET) return;
advertising_report_t report;
uint8_t event = hci_event_packet_get_type(packet);
switch (event) {
case BTSTACK_EVENT_STATE:
// BTstack activated, get started
if (btstack_event_state_get_state(packet) != HCI_STATE_WORKING) break;
if (cmdline_addr_found){
printf("Trying to connect to %s\n", bd_addr_to_str(cmdline_addr));
gap_connect(cmdline_addr, 0);
break;
}
printf("BTstack activated, start scanning!\n");
gap_set_scan_parameters(0,0x0030, 0x0030);
gap_start_scan();
break;
case GAP_EVENT_ADVERTISING_REPORT:
fill_advertising_report_from_packet(&report, packet);
dump_advertising_report(&report);
// stop scanning, and connect to the device
gap_stop_scan();
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;
connection_handler = hci_subevent_le_connection_complete_get_connection_handle(packet);
// query primary services
gatt_client_discover_primary_services(handle_gatt_client_event, connection_handler);
break;
case HCI_EVENT_DISCONNECTION_COMPLETE:
printf("\nGATT browser - DISCONNECTED\n");
break;
default:
break;
}
}
static void hci_event_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
if (packet_type != HCI_EVENT_PACKET) return;
uint8_t event = hci_event_packet_get_type(packet);
switch (event) {
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));
state = TC_W4_CONNECT;
gap_connect(cmdline_addr, 0);
break;
}
printf("Start scanning!\n");
state = TC_W4_SCAN_RESULT;
gap_set_scan_parameters(0,0x0030, 0x0030);
gap_start_scan();
break;
case GAP_EVENT_ADVERTISING_REPORT:
if (state != TC_W4_SCAN_RESULT) return;
fill_advertising_report_from_packet(&report, packet);
if (blacklist_contains(report.address)) {
break;
}
dump_advertising_report(&report);
// stop scanning, and connect to the device
state = TC_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 (state != TC_W4_CONNECT) return;
connection_handle = hci_subevent_le_connection_complete_get_connection_handle(packet);
// initialize gatt client context with handle, and add it to the list of active clients
// query primary services
printf("\nSearch for battery service.\n");
state = TC_W4_SERVICE_RESULT;
gatt_client_discover_primary_services_by_uuid16(handle_gatt_client_event, connection_handle, battery_service_uuid);
break;
case HCI_EVENT_DISCONNECTION_COMPLETE:
if (cmdline_addr_found){
printf("\nDisconnected %s\n", bd_addr_to_str(cmdline_addr));
exit(0);
}
printf("\nDisconnected %s\n", bd_addr_to_str(report.address));
printf("Restart scan.\n");
state = TC_W4_SCAN_RESULT;
gap_start_scan();
break;
default:
break;
}
}