static void inquiry_packet_handler (uint8_t packet_type, uint8_t *packet, uint16_t size){
bd_addr_t addr;
int i;
int numResponses;
int index;
// printf("packet_handler: pt: 0x%02x, packet[0]: 0x%02x\n", packet_type, packet[0]);
if (packet_type != HCI_EVENT_PACKET) return;
uint8_t event = packet[0];
switch(event){
case HCI_EVENT_INQUIRY_RESULT:
case HCI_EVENT_INQUIRY_RESULT_WITH_RSSI:{
numResponses = packet[2];
int offset = 3;
for (i=0; i<numResponses && deviceCount < MAX_DEVICES;i++){
bt_flip_addr(addr, &packet[offset]);
offset += 6;
index = getDeviceIndexForAddress(addr);
if (index >= 0) continue; // already in our list
memcpy(devices[deviceCount].address, addr, 6);
devices[deviceCount].pageScanRepetitionMode = packet[offset];
offset += 1;
if (event == HCI_EVENT_INQUIRY_RESULT){
offset += 2; // Reserved + Reserved
devices[deviceCount].classOfDevice = READ_BT_24(packet, offset);
offset += 3;
devices[deviceCount].clockOffset = READ_BT_16(packet, offset) & 0x7fff;
offset += 2;
devices[deviceCount].rssi = 0;
} else {
offset += 1; // Reserved
devices[deviceCount].classOfDevice = READ_BT_24(packet, offset);
offset += 3;
devices[deviceCount].clockOffset = READ_BT_16(packet, offset) & 0x7fff;
offset += 2;
devices[deviceCount].rssi = packet[offset];
offset += 1;
}
devices[deviceCount].state = REMOTE_NAME_REQUEST;
printf("Device #%u found: %s with COD: 0x%06x, pageScan %d, clock offset 0x%04x, rssi 0x%02x\n",
deviceCount, bd_addr_to_str(addr),
devices[deviceCount].classOfDevice, devices[deviceCount].pageScanRepetitionMode,
devices[deviceCount].clockOffset, devices[deviceCount].rssi);
deviceCount++;
}
break;
}
case HCI_EVENT_INQUIRY_COMPLETE:
for (i=0;i<deviceCount;i++) {
// retry remote name request
if (devices[i].state == REMOTE_NAME_INQUIRED)
devices[i].state = REMOTE_NAME_REQUEST;
}
continue_remote_names();
break;
case BTSTACK_EVENT_REMOTE_NAME_CACHED:
bt_flip_addr(addr, &packet[3]);
printf("Cached remote name for %s: '%s'\n", bd_addr_to_str(addr), &packet[9]);
break;
case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE:
bt_flip_addr(addr, &packet[3]);
index = getDeviceIndexForAddress(addr);
if (index >= 0) {
if (packet[2] == 0) {
printf("Name: '%s'\n", &packet[9]);
devices[index].state = REMOTE_NAME_FETCHED;
} else {
printf("Failed to get name: page timeout\n");
}
}
continue_remote_names();
break;
default:
break;
}
}
static void packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
UNUSED(channel);
UNUSED(size);
bd_addr_t addr;
int i;
int index;
if (packet_type != HCI_EVENT_PACKET) return;
uint8_t event = hci_event_packet_get_type(packet);
switch(state){
/* @text In INIT, an inquiry scan is started, and the application transits to
* ACTIVE state.
*/
case INIT:
switch(event){
case BTSTACK_EVENT_STATE:
if (btstack_event_state_get_state(packet) == HCI_STATE_WORKING){
start_scan();
state = ACTIVE;
}
break;
default:
break;
}
break;
/* @text In ACTIVE, the following events are processed:
* - GAP Inquiry result event: BTstack provides a unified inquiry result that contain
* Class of Device (CoD), page scan mode, clock offset. RSSI and name (from EIR) are optional.
* - Inquiry complete event: the remote name is requested for devices without a fetched
* name. The state of a remote name can be one of the following:
* REMOTE_NAME_REQUEST, REMOTE_NAME_INQUIRED, or REMOTE_NAME_FETCHED.
* - Remote name request complete event: the remote name is stored in the table and the
* state is updated to REMOTE_NAME_FETCHED. The query of remote names is continued.
*/
case ACTIVE:
switch(event){
case GAP_EVENT_INQUIRY_RESULT:
if (deviceCount >= MAX_DEVICES) break; // already full
gap_event_inquiry_result_get_bd_addr(packet, addr);
index = getDeviceIndexForAddress(addr);
if (index >= 0) break; // already in our list
memcpy(devices[deviceCount].address, addr, 6);
devices[deviceCount].pageScanRepetitionMode = gap_event_inquiry_result_get_page_scan_repetition_mode(packet);
devices[deviceCount].clockOffset = gap_event_inquiry_result_get_clock_offset(packet);
// print info
printf("Device found: %s ", bd_addr_to_str(addr));
printf("with COD: 0x%06x, ", (unsigned int) gap_event_inquiry_result_get_class_of_device(packet));
printf("pageScan %d, ", devices[deviceCount].pageScanRepetitionMode);
printf("clock offset 0x%04x",devices[deviceCount].clockOffset);
if (gap_event_inquiry_result_get_rssi_available(packet)){
printf(", rssi %d dBm", (int8_t) gap_event_inquiry_result_get_rssi(packet));
}
if (gap_event_inquiry_result_get_name_available(packet)){
char name_buffer[240];
int name_len = gap_event_inquiry_result_get_name_len(packet);
memcpy(name_buffer, gap_event_inquiry_result_get_name(packet), name_len);
name_buffer[name_len] = 0;
printf(", name '%s'", name_buffer);
devices[deviceCount].state = REMOTE_NAME_FETCHED;;
} else {
devices[deviceCount].state = REMOTE_NAME_REQUEST;
}
printf("\n");
deviceCount++;
break;
case GAP_EVENT_INQUIRY_COMPLETE:
for (i=0;i<deviceCount;i++) {
// retry remote name request
if (devices[i].state == REMOTE_NAME_INQUIRED)
devices[i].state = REMOTE_NAME_REQUEST;
}
continue_remote_names();
break;
case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE:
reverse_bd_addr(&packet[3], addr);
index = getDeviceIndexForAddress(addr);
if (index >= 0) {
if (packet[2] == 0) {
printf("Name: '%s'\n", &packet[9]);
devices[index].state = REMOTE_NAME_FETCHED;
} else {
printf("Failed to get name: page timeout\n");
}
}
continue_remote_names();
break;
default:
break;
}
break;
default:
break;
}
}
static void packet_handler (uint8_t packet_type, uint8_t *packet, uint16_t size){
bd_addr_t addr;
int i;
int numResponses;
int index;
// printf("packet_handler: pt: 0x%02x, packet[0]: 0x%02x\n", packet_type, packet[0]);
if (packet_type != HCI_EVENT_PACKET) return;
uint8_t event = packet[0];
switch(state){
case INIT:
if (packet[2] == HCI_STATE_WORKING) {
hci_send_cmd(&hci_write_inquiry_mode, 0x01); // with RSSI
state = W4_INQUIRY_MODE_COMPLETE;
}
break;
case W4_INQUIRY_MODE_COMPLETE:
if ( COMMAND_COMPLETE_EVENT(packet, hci_write_inquiry_mode) ) {
start_scan();
state = ACTIVE;
}
break;
case ACTIVE:
switch(event){
case HCI_EVENT_INQUIRY_RESULT:
case HCI_EVENT_INQUIRY_RESULT_WITH_RSSI:
numResponses = packet[2];
for (i=0; i<numResponses && deviceCount < MAX_DEVICES;i++){
bt_flip_addr(addr, &packet[3+i*6]);
index = getDeviceIndexForAddress(addr);
if (index >= 0) continue; // already in our list
memcpy(devices[deviceCount].address, addr, 6);
devices[deviceCount].pageScanRepetitionMode = packet [3 + numResponses*(6) + i*1];
if (event == HCI_EVENT_INQUIRY_RESULT){
devices[deviceCount].classOfDevice = READ_BT_24(packet, 3 + numResponses*(6+1+1+1) + i*3);
devices[deviceCount].clockOffset = READ_BT_16(packet, 3 + numResponses*(6+1+1+1+3) + i*2) & 0x7fff;
devices[deviceCount].rssi = 0;
} else {
devices[deviceCount].classOfDevice = READ_BT_24(packet, 3 + numResponses*(6+1+1) + i*3);
devices[deviceCount].clockOffset = READ_BT_16(packet, 3 + numResponses*(6+1+1+3) + i*2) & 0x7fff;
devices[deviceCount].rssi = packet [3 + numResponses*(6+1+1+3+2) + i*1];
}
devices[deviceCount].state = REMOTE_NAME_REQUEST;
printf("Device found: %s with COD: 0x%06x, pageScan %d, clock offset 0x%04x, rssi 0x%02x\n", bd_addr_to_str(addr),
devices[deviceCount].classOfDevice, devices[deviceCount].pageScanRepetitionMode,
devices[deviceCount].clockOffset, devices[deviceCount].rssi);
deviceCount++;
}
break;
case HCI_EVENT_INQUIRY_COMPLETE:
for (i=0;i<deviceCount;i++) {
// retry remote name request
if (devices[i].state == REMOTE_NAME_INQUIRED)
devices[i].state = REMOTE_NAME_REQUEST;
}
continue_remote_names();
break;
case BTSTACK_EVENT_REMOTE_NAME_CACHED:
bt_flip_addr(addr, &packet[3]);
printf("Cached remote name for %s: '%s'\n", bd_addr_to_str(addr), &packet[9]);
break;
case HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE:
bt_flip_addr(addr, &packet[3]);
index = getDeviceIndexForAddress(addr);
if (index >= 0) {
if (packet[2] == 0) {
printf("Name: '%s'\n", &packet[9]);
devices[index].state = REMOTE_NAME_FETCHED;
} else {
printf("Failed to get name: page timeout\n");
}
}
continue_remote_names();
break;
default:
break;
}
break;
default:
break;
}
}