#include <stdio.h>
#include <string.h>
#include <io.h>
#include <stdlib.h>
#include <dev/usart.h>
#include <dev/usartavr.h>
#include <bt/bt_hci_cmds.h>
#include <bt/bt_l2cap.h>
#include <bt/bt_rfcomm.h>
#include <terminal/btn-terminal.h>
#include <terminal/btn-cmds.h>
#include <terminal/bt-cmds.h>
#include <terminal/nut-cmds.h>
#include <terminal/l2cap-cmds.h>
#include <terminal/rfcomm-cmds.h>
#include <led/btn-led.h>
#include <hardware/btn-hardware.h>
#include <sys/timer.h>
#define BT_L2CAP_HCI_PACKET_TYPE (BT_HCI_PACKET_TYPE_DM1 | BT_HCI_PACKET_TYPE_DH1 | \
BT_HCI_PACKET_TYPE_DM3 | BT_HCI_PACKET_TYPE_DH3)
#define MIN_CREDITS 10
#define MAX_CREDITS 40
void rcv_cb(u_char dlci, u_char * payload, u_short len, void *arg)
{
u_short idx;
if (len > 0) {
printf("\n");
for (idx = 0; idx < len; idx++)
printf("%c ", payload[idx]);
}
}
void con_cb(u_char dlci, u_char type, void *arg)
{
if (type == BT_RFCOMM_CONNECT) {
printf("RFCOMM Connect on dlci %d...\n", dlci);
bt_rfcomm_send_credits(dlci, MAX_CREDITS - BT_RFCOMM_DEF_CREDITS);
} else {
printf("RFCOMM Disconnect on dlci %d...\n", dlci);
}
}
void line_cb(u_char dlci, u_char flags, void *arg)
{
printf("rfcomm Line status has changed: dlci: %d, flags: %02x\n", dlci, flags);
}
void credit_cb(u_char dlci, u_char credits, void *arg)
{
printf("rfcomm Credits running low for dlci %d. Credits remaining: %d\n", dlci, credits);
printf("rfcomm Send new credits: %d\n", MAX_CREDITS - credits);
bt_rfcomm_send_credits(dlci, MAX_CREDITS - credits);
}
FILE *uart_terminal;
struct btstack* stack;
struct bt_l2cap_stack* l2cap_stack;
struct bt_rfcomm_stack* rfcomm_stack;
void send_at(char* arg) {
// address of device (reverse order!)
bt_addr_t BTaddress = { 0xc5, 0xe1, 0x61, 0xde, 0x0f, 0x00 };
printf("starting session...\n");
if (bt_rfcomm_start_session(BTaddress, 0, 0)) {
printf("session error.\n");
return;
}
NutSleep(1000);
printf("connecting...\n");
if (bt_rfcomm_connect(1, con_cb, rcv_cb, line_cb, credit_cb, 10, NULL)) {
printf("connection error.\n");
return;
}
NutSleep(1000);
printf("sending command...\n");
// send commands using bt_rfcomm_send(u_char dlci, u_char *message, u_short length)
// don't forget NutSleep() after each command!
printf("Disconnect.\n");
bt_rfcomm_disconnect(2);
}
/**
* main function that initializes the hardware, led, terminal, bluetooth
* and acl communication stack and registers some predefined commands.
* Use tab-tab to see the registered commands once the program is running.
*/
int main(void)
{
// serial baud rate
u_long baud = 57600;
// hardware init
btn_hardware_init();
btn_led_init(1);
// init app uart
NutRegisterDevice(&APP_UART, 0, 0);
freopen(APP_UART.dev_name, "r+", stdout);
_ioctl(_fileno(stdout), UART_SETSPEED, &baud);
// hello world!
printf_P(PSTR("\n# --------------------------------------------"));
printf_P(PSTR("\n# Welcome to BTnut (c) 2009 ETH Zurich\n"));
printf_P(PSTR("# rfcomm-cmd\n"));
printf_P(PSTR("# --------------------------------------------"));
printf_P(PSTR("\nbooting bluetooth module... "));
// bluetooth module on (takes a while)
btn_hardware_bt_on();
// verbose debug of all hci information
//_bt_hci_debug_uart = 1;
// Start the stack and let the initialization begin
stack = bt_hci_init(&BT_UART);
bt_hci_write_local_cod(stack, BT_HCI_SYNC, 200);
printf_P(PSTR("ok.\n\r"));
// give hint
printf_P(PSTR("hit tab twice for a list of commands\n\r"));
// terminal init
btn_terminal_init(stdout, "[rfcomm-cmd]$");
bt_cmds_init(stack);
// Start L2CAP and RFCOMM
l2cap_stack = bt_l2cap_init(stack, 8, 8, BT_L2CAP_HCI_PACKET_TYPE);
l2cap_cmds_init(l2cap_stack, 1, BT_L2CAP_MIN_MTU, BT_L2CAP_MTU_DEFAULT);
rfcomm_stack = bt_rfcomm_init(l2cap_stack, BT_RFCOMM_DEF_MFS, 4, 5);
rfcomm_cmds_init();
bt_cmds_register_cmds();
btn_cmds_register_cmds();
nut_cmds_register_cmds();
l2cap_cmds_register_cmds();
rfcomm_cmds_register_cmds();
btn_terminal_register_cmd("send_at", send_at);
// terminal mode
btn_terminal_run(BTN_TERMINAL_NOFORK, 0);
return 0;
}