#if 1
#include "mbed.h"
#include <btstack/hci_cmds.h>
#include <btstack/run_loop.h>
#include <btstack/sdp_util.h>
#include "hci.h"
#include "l2cap.h"
#include "btstack_memory.h"
#include "remote_device_db.h"
#include "rfcomm.h"
#include "sdp.h"
#include "config.h"
#include "debug.h"
#include "bd_addr.h"
#include "uvc.h"
#include <queue>
#include <string>
Serial pc(USBTX, USBRX);
DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4);
#define CAMERA_INTERVAL_MS 5000
static uint8_t rfcomm_channel_nr = 1;
static uint16_t rfcomm_channel_id = 0;
static uint8_t spp_service_buffer[128];
uvc* cam = NULL;
Timer cam_t;
queue<string> send_queue;
static void packet_handler(void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
bd_addr_t event_addr;
uint8_t rfcomm_channel_nr;
uint16_t mtu;
switch (packet_type) {
case HCI_EVENT_PACKET:
switch (packet[0]) {
case BTSTACK_EVENT_STATE:
if (packet[2] == HCI_STATE_WORKING) {
hci_send_cmd(&hci_write_local_name, "mbed");
}
break;
case HCI_EVENT_COMMAND_COMPLETE:
if (COMMAND_COMPLETE_EVENT(packet, hci_read_bd_addr)){
bt_flip_addr(event_addr, &packet[6]);
log_info("BD-ADDR: %s\n\r", bd_addr_to_str(event_addr));
break;
}
if (COMMAND_COMPLETE_EVENT(packet, hci_write_local_name)){
hci_discoverable_control(1);
break;
}
break;
case HCI_EVENT_LINK_KEY_REQUEST:
log_info("Link key request\n\r");
bt_flip_addr(event_addr, &packet[2]);
hci_send_cmd(&hci_link_key_request_negative_reply, &event_addr);
break;
case HCI_EVENT_PIN_CODE_REQUEST:
log_info("Pin code request - using '0000'\n\r");
bt_flip_addr(event_addr, &packet[2]);
hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000");
break;
case RFCOMM_EVENT_INCOMING_CONNECTION:
bt_flip_addr(event_addr, &packet[2]);
rfcomm_channel_nr = packet[8];
rfcomm_channel_id = READ_BT_16(packet, 9);
log_info("RFCOMM channel %u requested for %s\n\r", rfcomm_channel_nr, bd_addr_to_str(event_addr));
rfcomm_accept_connection_internal(rfcomm_channel_id);
break;
case RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE:
if (packet[2]) {
log_info("RFCOMM channel open failed, status %u\n\r", packet[2]);
} else {
rfcomm_channel_id = READ_BT_16(packet, 12);
mtu = READ_BT_16(packet, 14);
log_info("\n\rRFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n\r", rfcomm_channel_id, mtu);
}
break;
case RFCOMM_EVENT_CHANNEL_CLOSED:
rfcomm_channel_id = 0;
break;
default:
break;
}
break;
default:
break;
}
}
void cam_packet(uint8_t* buf, int len, int st = 0)
{
string packet;
for(int i = 0; i < len; i++) {
char str[8];
snprintf(str, sizeof(str), "%02X", buf[i]);
packet += str;
}
packet += "\n";
if (st == 2) {
packet += "\n";
}
send_queue.push(packet);
}
void callback_motion_jpeg(uint16_t frame, uint8_t* buf, int len)
{
static uint8_t bfh = 0x00;
static int seq = 0;
if (len <= 12) {
return;
}
uint8_t* data = buf+12;
int data_len = len - 12;
switch(seq) {
case 0:
if (cam_t.read_ms() > CAMERA_INTERVAL_MS) {
seq++;
}
break;
case 1:
if ((buf[1]^bfh)&0x01) {
cam_packet(data, data_len, 1);
seq++;
} else {
break;
}
case 2:
if (buf[1]&0x02) {
cam_packet(data, data_len, 2);
seq = 0;
cam_t.reset();
led2 = !led2;
} else {
cam_packet(data, data_len, 0);
}
break;
}
bfh = buf[1];
led1 = buf[1]&1;
}
static int cam_process_ds(struct data_source *ds) {
while(!send_queue.empty()) {
string packet = send_queue.front();
if (rfcomm_channel_id){
int r = rfcomm_send_internal(rfcomm_channel_id, (uint8_t*)packet.data(), packet.size());
if (r == RFCOMM_NO_OUTGOING_CREDITS) {
break;
}
if (r) {
log_info("rfcomm_send_internal -> error %d", r);
send_queue.pop();
break;
}
send_queue.pop();
led3 = !led3;
} else {
send_queue.pop();
break;
}
}
if (cam) {
cam->poll();
}
return 0;
}
int main(void)
{
pc.baud(921600);
log_info("%s\n", __FILE__);
led1 = led2 = led3 = led4 = 0;
btstack_memory_init();
run_loop_init(RUN_LOOP_EMBEDDED);
hci_transport_t * transport = hci_transport_usb_instance();
remote_device_db_t * remote_db = (remote_device_db_t *) &remote_device_db_memory;
hci_init(transport, NULL, NULL, remote_db);
l2cap_init();
l2cap_register_packet_handler(packet_handler);
rfcomm_init();
rfcomm_register_packet_handler(packet_handler);
rfcomm_register_service_internal(NULL, rfcomm_channel_nr, 100);
sdp_init();
memset(spp_service_buffer, 0, sizeof(spp_service_buffer));
service_record_item_t * service_record_item = (service_record_item_t *) spp_service_buffer;
sdp_create_spp_service( (uint8_t*) &service_record_item->service_record, 1, "camera");
log_info("SDP service buffer size: %u\n", (uint16_t) (sizeof(service_record_item_t) + de_get_len((uint8_t*) &service_record_item->service_record)));
sdp_register_service_internal(NULL, service_record_item);
cam = new uvc;
cam->SetImageSize(160, 120);
cam->setOnResult(callback_motion_jpeg);
if (cam->setup()< 0){printf("cam setup error\n");exit(1);}
cam_t.reset();
cam_t.start();
data_source_t *ds = (data_source_t*)malloc(sizeof(data_source_t));
ds->process = cam_process_ds;
run_loop_add_data_source(ds);
log_info("Run...\n\r");
hci_power_control(HCI_POWER_ON);
run_loop_execute();
return 0;
}
#endif