blob: 5adbc8d83482538a912d64c215a6e6b64daf3da8 [file] [log] [blame]
/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2011-2012 Intel Corporation
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <poll.h>
#include "lib/bluetooth.h"
#include "lib/hci.h"
#include "lib/hci_lib.h"
#include "hciattach.h"
#include "monitor/bt.h"
#include "src/shared/mainloop.h"
#include "src/shared/timeout.h"
#include "src/shared/util.h"
#include "src/shared/tty.h"
#include "src/shared/hci.h"
static int open_serial(const char *path, unsigned int speed, bool flowctl)
{
struct termios ti;
int fd, saved_ldisc, ldisc = N_HCI;
fd = open(path, O_RDWR | O_NOCTTY);
if (fd < 0) {
perror("Failed to open serial port");
return -1;
}
if (tcflush(fd, TCIOFLUSH) < 0) {
perror("Failed to flush serial port");
close(fd);
return -1;
}
if (ioctl(fd, TIOCGETD, &saved_ldisc) < 0) {
perror("Failed get serial line discipline");
close(fd);
return -1;
}
/* Switch TTY to raw mode */
memset(&ti, 0, sizeof(ti));
cfmakeraw(&ti);
ti.c_cflag |= (speed | CLOCAL | CREAD);
if (flowctl) {
/* Set flow control */
ti.c_cflag |= CRTSCTS;
}
if (tcsetattr(fd, TCSANOW, &ti) < 0) {
perror("Failed to set serial port settings");
close(fd);
return -1;
}
if (ioctl(fd, TIOCSETD, &ldisc) < 0) {
perror("Failed set serial line discipline");
close(fd);
return -1;
}
printf("Switched line discipline from %d to %d\n", saved_ldisc, ldisc);
return fd;
}
static void local_version_callback(const void *data, uint8_t size,
void *user_data)
{
const struct bt_hci_rsp_read_local_version *rsp = data;
printf("Manufacturer: %u\n", le16_to_cpu(rsp->manufacturer));
}
static int attach_proto(const char *path, unsigned int proto,
unsigned int speed, bool flowctl, unsigned int flags)
{
int fd, dev_id;
fd = open_serial(path, speed, flowctl);
if (fd < 0)
return -1;
if (ioctl(fd, HCIUARTSETFLAGS, flags) < 0) {
perror("Failed to set flags");
close(fd);
return -1;
}
if (ioctl(fd, HCIUARTSETPROTO, proto) < 0) {
perror("Failed to set protocol");
close(fd);
return -1;
}
dev_id = ioctl(fd, HCIUARTGETDEVICE);
if (dev_id < 0) {
perror("Failed to get device id");
close(fd);
return -1;
}
printf("Device index %d attached\n", dev_id);
if (flags & (1 << HCI_UART_RAW_DEVICE)) {
unsigned int attempts = 6;
struct bt_hci *hci;
while (attempts-- > 0) {
hci = bt_hci_new_user_channel(dev_id);
if (hci)
break;
usleep(250 * 1000);
}
if (!hci) {
fprintf(stderr, "Failed to open HCI user channel\n");
close(fd);
return -1;
}
bt_hci_send(hci, BT_HCI_CMD_READ_LOCAL_VERSION, NULL, 0,
local_version_callback, hci,
(bt_hci_destroy_func_t) bt_hci_unref);
}
return fd;
}
static void uart_callback(int fd, uint32_t events, void *user_data)
{
printf("UART callback handling\n");
}
static void signal_callback(int signum, void *user_data)
{
static bool terminated = false;
switch (signum) {
case SIGINT:
case SIGTERM:
if (!terminated) {
mainloop_quit();
terminated = true;
}
break;
}
}
static void usage(void)
{
printf("btattach - Bluetooth serial utility\n"
"Usage:\n");
printf("\tbtattach [options]\n");
printf("options:\n"
"\t-B, --bredr <device> Attach Primary controller\n"
"\t-A, --amp <device> Attach AMP controller\n"
"\t-P, --protocol <proto> Specify protocol type\n"
"\t-S, --speed <baudrate> Specify which baudrate to use\n"
"\t-N, --noflowctl Disable flow control\n"
"\t-h, --help Show help options\n");
}
static const struct option main_options[] = {
{ "bredr", required_argument, NULL, 'B' },
{ "amp", required_argument, NULL, 'A' },
{ "protocol", required_argument, NULL, 'P' },
{ "speed", required_argument, NULL, 'S' },
{ "noflowctl",no_argument, NULL, 'N' },
{ "version", no_argument, NULL, 'v' },
{ "help", no_argument, NULL, 'h' },
{ }
};
static const struct {
const char *name;
unsigned int id;
} proto_table[] = {
{ "h4", HCI_UART_H4 },
{ "bcsp", HCI_UART_BCSP },
{ "3wire", HCI_UART_3WIRE },
{ "h4ds", HCI_UART_H4DS },
{ "ll", HCI_UART_LL },
{ "ath3k", HCI_UART_ATH3K },
{ "intel", HCI_UART_INTEL },
{ "bcm", HCI_UART_BCM },
{ "qca", HCI_UART_QCA },
{ "ag6xx", HCI_UART_AG6XX },
{ "nokia", HCI_UART_NOKIA },
{ "mrvl", HCI_UART_MRVL },
{ }
};
int main(int argc, char *argv[])
{
const char *bredr_path = NULL, *amp_path = NULL, *proto = NULL;
bool flowctl = true, raw_device = false;
sigset_t mask;
int exit_status, count = 0, proto_id = HCI_UART_H4;
unsigned int speed = B115200;
for (;;) {
int opt;
opt = getopt_long(argc, argv, "B:A:P:S:NRvh",
main_options, NULL);
if (opt < 0)
break;
switch (opt) {
case 'B':
bredr_path = optarg;
break;
case 'A':
amp_path = optarg;
break;
case 'P':
proto = optarg;
break;
case 'S':
speed = tty_get_speed(atoi(optarg));
if (!speed) {
fprintf(stderr, "Invalid speed: %s\n", optarg);
return EXIT_FAILURE;
}
break;
case 'N':
flowctl = false;
break;
case 'R':
raw_device = true;
break;
case 'v':
printf("%s\n", VERSION);
return EXIT_SUCCESS;
case 'h':
usage();
return EXIT_SUCCESS;
default:
return EXIT_FAILURE;
}
}
if (argc - optind > 0) {
fprintf(stderr, "Invalid command line parameters\n");
return EXIT_FAILURE;
}
mainloop_init();
sigemptyset(&mask);
sigaddset(&mask, SIGINT);
sigaddset(&mask, SIGTERM);
mainloop_set_signal(&mask, signal_callback, NULL, NULL);
if (proto) {
unsigned int i;
for (i = 0; proto_table[i].name; i++) {
if (!strcmp(proto_table[i].name, proto)) {
proto_id = proto_table[i].id;
break;
}
}
if (!proto_table[i].name) {
fprintf(stderr, "Invalid protocol\n");
return EXIT_FAILURE;
}
}
if (bredr_path) {
unsigned long flags;
int fd;
printf("Attaching Primary controller to %s\n", bredr_path);
flags = (1 << HCI_UART_RESET_ON_INIT);
if (raw_device)
flags = (1 << HCI_UART_RAW_DEVICE);
fd = attach_proto(bredr_path, proto_id, speed, flowctl, flags);
if (fd >= 0) {
mainloop_add_fd(fd, 0, uart_callback, NULL, NULL);
count++;
}
}
if (amp_path) {
unsigned long flags;
int fd;
printf("Attaching AMP controller to %s\n", amp_path);
flags = (1 << HCI_UART_RESET_ON_INIT) |
(1 << HCI_UART_CREATE_AMP);
if (raw_device)
flags = (1 << HCI_UART_RAW_DEVICE);
fd = attach_proto(amp_path, proto_id, speed, flowctl, flags);
if (fd >= 0) {
mainloop_add_fd(fd, 0, uart_callback, NULL, NULL);
count++;
}
}
if (count < 1) {
fprintf(stderr, "No controller attached\n");
return EXIT_FAILURE;
}
exit_status = mainloop_run();
return exit_status;
}