Add utility for Babel devices

1 files changed, 211 insertions, 0 deletions

diff --git a/tools/dfubabel.c b/tools/dfubabel.c
new file mode 100644
index 00000000..ffcded90
--- /dev/null
+++ b/tools/dfubabel.c
@@ -0,0 +1,211 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2004-2007  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 <stdint.h>
+#include <string.h>
+#include <getopt.h>
+
+#include <usb.h>
+
+#ifdef NEED_USB_GET_BUSSES
+static inline struct usb_bus *usb_get_busses(void)
+{
+	return usb_busses;
+}
+#endif
+
+struct device_info;
+
+struct device_id {
+	uint16_t vendor;
+	uint16_t product;
+	int (*func)(struct device_info *dev, int argc, char *argv[]);
+};
+
+struct device_info {
+	struct usb_device *dev;
+	struct device_id *id;
+};
+
+static int switch_babel(struct device_info *devinfo, int argc, char *argv[])
+{
+	char buf[3];
+	struct usb_dev_handle *udev;
+	int err;
+
+	memset(buf, 0, sizeof(buf));
+
+	buf[0] = 0x00;
+	buf[1] = 0x06;
+	buf[2] = 0x00;
+
+	udev = usb_open(devinfo->dev);
+	if (!udev)
+		return -errno;
+
+	if (usb_claim_interface(udev, 0) < 0) {
+		err = -errno;
+		usb_close(udev);
+		return err;
+	}
+
+	err = usb_bulk_write(udev, 0x02, buf, sizeof(buf), 10000);
+
+	if (err == 0) {
+		err = -1;
+		errno = EALREADY;
+	} else {
+		if (errno == ETIMEDOUT)
+			err = 0;
+	}
+
+	usb_release_interface(udev, 0);
+	usb_close(udev);
+
+	return err;
+}
+
+static struct device_id device_list[] = {
+	{ 0x0a12, 0x0042, switch_babel },
+	{ -1 }
+};
+
+static struct device_id *match_device(uint16_t vendor, uint16_t product)
+{
+	int i;
+
+	for (i = 0; device_list[i].func; i++) {
+		if (vendor == device_list[i].vendor &&
+				product == device_list[i].product)
+			return &device_list[i];
+	}
+
+	return NULL;
+}
+
+static int find_devices(struct device_info *devinfo, size_t size)
+{
+	struct usb_bus *bus;
+	struct usb_device *dev;
+	struct device_id *id;
+	int count = 0;
+
+	usb_find_busses();
+	usb_find_devices();
+
+	for (bus = usb_get_busses(); bus; bus = bus->next)
+		for (dev = bus->devices; dev; dev = dev->next) {
+			id = match_device(dev->descriptor.idVendor,
+						dev->descriptor.idProduct);
+			if (!id)
+				continue;
+
+			if (count < size) {
+				devinfo[count].dev = dev;
+				devinfo[count].id = id;
+				count++;
+			}
+		}
+
+	return count;
+}
+
+static void usage(void)
+{
+	printf("dfubabel - Babel DFU mode switching utility\n\n");
+
+	printf("Usage:\n"
+		"\tdfubabel [options]\n"
+		"\n");
+
+	printf("Options:\n"
+		"\t-h, --help           Display help\n"
+		"\t-q, --quiet          Don't display any messages\n"
+		"\n");
+}
+
+static struct option main_options[] = {
+	{ "help",	0, 0, 'h' },
+	{ "quiet",	0, 0, 'q' },
+	{ 0, 0, 0, 0 }
+};
+
+int main(int argc, char *argv[])
+{
+	struct device_info dev[16];
+	int i, opt, num, quiet = 0;
+
+	while ((opt = getopt_long(argc, argv, "+qh", main_options, NULL)) != -1) {
+		switch (opt) {
+		case 'q':
+			quiet = 1;
+			break;
+		case 'h':
+			usage();
+			exit(0);
+		default:
+			exit(0);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+	optind = 0;
+
+	usb_init();
+
+	num = find_devices(dev, sizeof(dev) / sizeof(dev[0]));
+	if (num <= 0) {
+		if (!quiet)
+			fprintf(stderr, "No Babel devices found\n");
+		exit(1);
+	}
+
+	for (i = 0; i < num; i++) {
+		struct device_id *id = dev[i].id;
+		int err;
+
+		if (!quiet)
+			printf("Switching device %04x:%04x ",
+						id->vendor, id->product);
+		fflush(stdout);
+
+		err = id->func(&dev[i], argc, argv);
+		if (err < 0) {
+			if (!quiet)
+				printf("failed (%s)\n", strerror(-err));
+		} else {
+			if (!quiet)
+				printf("was successful\n");
+		}
+	}
+
+	return 0;
+}