Imported Upstream version 5.10upstream/5.10

1 files changed, 210 insertions, 0 deletions

diff --git a/tools/btattach.c b/tools/btattach.c
new file mode 100644
index 00000000..a0844406
--- /dev/null
+++ b/tools/btattach.c
@@ -0,0 +1,210 @@
+/*
+ *
+ *  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 <sys/poll.h>
+
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/hci.h>
+#include <bluetooth/hci_lib.h>
+
+#include "hciattach.h"
+
+static int open_serial(const char *path)
+{
+	struct termios ti;
+	int fd, 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;
+	}
+
+	/* Switch TTY to raw mode */
+	memset(&ti, 0, sizeof(ti));
+	cfmakeraw(&ti);
+
+	ti.c_cflag |= (B115200 | CLOCAL | CREAD);
+
+	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;
+	}
+
+	return fd;
+}
+
+static int attach_proto(const char *path, unsigned int proto,
+						unsigned int flags)
+{
+	int fd;
+
+	fd = open_serial(path);
+	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;
+	}
+
+	return fd;
+}
+
+static void usage(void)
+{
+	printf("btattach - Bluetooth serial utility\n"
+		"Usage:\n");
+	printf("\tbtattach [options]\n");
+	printf("options:\n"
+		"\t-B, --bredr <device>   Attach BR/EDR controller\n"
+		"\t-A, --amp <device>     Attach AMP controller\n"
+		"\t-h, --help             Show help options\n");
+}
+
+static const struct option main_options[] = {
+	{ "bredr",   required_argument, NULL, 'B' },
+	{ "amp",     required_argument, NULL, 'A' },
+	{ "version", no_argument,       NULL, 'v' },
+	{ "help",    no_argument,       NULL, 'h' },
+	{ }
+};
+
+int main(int argc, char *argv[])
+{
+	const char *bredr_path = NULL, *amp_path = NULL;
+	struct pollfd p[5];
+	int i, count = 0;
+
+	for (;;) {
+		int opt;
+
+		opt = getopt_long(argc, argv, "B:A:vh",
+						main_options, NULL);
+		if (opt < 0)
+			break;
+
+		switch (opt) {
+		case 'B':
+			bredr_path = optarg;
+			break;
+		case 'A':
+			amp_path = optarg;
+			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;
+	}
+
+	if (bredr_path) {
+		unsigned long flags;
+		int fd;
+
+		printf("Attaching BR/EDR controller to %s\n", bredr_path);
+
+		flags = (1 << HCI_UART_RESET_ON_INIT);
+
+		fd = attach_proto(bredr_path, HCI_UART_H4, flags);
+		if (fd >= 0)
+			p[count++].fd = fd;
+	}
+
+	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);
+
+		fd = attach_proto(amp_path, HCI_UART_H4, flags);
+		if (fd >= 0)
+			p[count++].fd = fd;
+	}
+
+	if (count < 1) {
+		fprintf(stderr, "No controller attached\n");
+		return EXIT_FAILURE;
+	}
+
+	for (i = 0; i < count; i++) {
+		p[i].events = POLLERR | POLLHUP;
+		p[i].revents = 0;
+	}
+
+	while (1) {
+		if (poll(p, count, -1) < 0)
+			break;
+        }
+
+	for (i = 0; i < count; i++)
+		close(p[i].fd);
+
+	return EXIT_SUCCESS;
+}