#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include "log.h"
+#include <jtag/drivers/jtag_usb_common.h>
#include "libusb1_common.h"
+#include "log.h"
+
+/*
+ * comment from libusb:
+ * As per the USB 3.0 specs, the current maximum limit for the depth is 7.
+ */
+#define MAX_USB_PORTS 7
static struct libusb_context *jtag_libusb_context; /**< Libusb context **/
static libusb_device **devs; /**< The usb device list **/
return false;
}
+#ifdef HAVE_LIBUSB_GET_PORT_NUMBERS
+static bool jtag_libusb_location_equal(libusb_device *device)
+{
+ uint8_t port_path[MAX_USB_PORTS];
+ uint8_t dev_bus;
+ int path_len;
+
+ path_len = libusb_get_port_numbers(device, port_path, MAX_USB_PORTS);
+ if (path_len == LIBUSB_ERROR_OVERFLOW) {
+ LOG_WARNING("cannot determine path to usb device! (more than %i ports in path)\n",
+ MAX_USB_PORTS);
+ return false;
+ }
+ dev_bus = libusb_get_bus_number(device);
+
+ return jtag_usb_location_equal(dev_bus, port_path, path_len);
+}
+#else /* HAVE_LIBUSB_GET_PORT_NUMBERS */
+static bool jtag_libusb_location_equal(libusb_device *device)
+{
+ return true;
+}
+#endif /* HAVE_LIBUSB_GET_PORT_NUMBERS */
+
+
/* Returns true if the string descriptor indexed by str_index in device matches string */
static bool string_descriptor_equal(libusb_device_handle *device, uint8_t str_index,
const char *string)
if (!jtag_libusb_match(&dev_desc, vids, pids))
continue;
+ if (jtag_usb_get_location() && !jtag_libusb_location_equal(devs[idx]))
+ continue;
+
errCode = libusb_open(devs[idx], &libusb_handle);
if (errCode) {