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ftdi: make ftdi_location command depend on libusb1 version 

The function libusb_get_port_numbers(), required for the command
ftdi_location, is only available in recent version of libusb1.
Compilation will break if the function is not available. This patch
enables the command only if libusb1 contains the necessary function.

Change-Id: I091e72dafa4ed22eea51692751d43246a8152987
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3396
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
This commit is contained in:
Matthias Welwarsky 2016-04-06 10:35:13 +02:00 committed by Freddie Chopin
parent 18a6fdc154
commit 414e4eb40e
4 changed files with 11 additions and 1 deletions
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2
configure.ac
View File

@ -1142,6 +1142,8 @@ PKG_CHECK_MODULES([LIBUSB1], [libusb-1.0], [
[AC_MSG_WARN([libusb-1.x older than 1.0.9 detected, consider updating])])
LIBUSB1_CFLAGS=`echo $LIBUSB1_CFLAGS | sed 's/-I/-isystem /'`
AC_MSG_NOTICE([libusb-1.0 header bug workaround: LIBUSB1_CFLAGS changed to "$LIBUSB1_CFLAGS"])
PKG_CHECK_EXISTS([libusb-1.0 >= 1.0.16],
[AC_DEFINE([HAVE_LIBUSB_GET_PORT_NUMBERS], [1], [Define if your libusb has libusb_get_port_numbers()])])
], [
use_libusb1=no
AC_MSG_WARN([libusb-1.x not found, trying legacy libusb-0.1 as a fallback; consider installing libusb-1.x instead])

2
doc/openocd.texi
View File

@ -2564,6 +2564,8 @@ roots at @var{bus} and walks down the physical ports, with each
@var{port} option specifying a deeper level in the bus topology, the last
@var{port} denoting where the target adapter is actually plugged.
The USB bus topology can be queried with the command @emph{lsusb -t}.
This command is only available if your libusb1 is at least version 1.0.16.
@end deffn
@deffn {Config Command} {ftdi_channel} channel

4
src/jtag/drivers/ftdi.c
View File

@ -699,6 +699,7 @@ COMMAND_HANDLER(ftdi_handle_serial_command)
return ERROR_OK;
}
#ifdef HAVE_LIBUSB_GET_PORT_NUMBERS
COMMAND_HANDLER(ftdi_handle_location_command)
{
if (CMD_ARGC == 1) {
@ -711,6 +712,7 @@ COMMAND_HANDLER(ftdi_handle_location_command)
return ERROR_OK;
}
#endif
COMMAND_HANDLER(ftdi_handle_channel_command)
{
@ -889,6 +891,7 @@ static const struct command_registration ftdi_command_handlers[] = {
.help = "set the serial number of the FTDI device",
.usage = "serial_string",
},
#ifdef HAVE_LIBUSB_GET_PORT_NUMBERS
{
.name = "ftdi_location",
.handler = &ftdi_handle_location_command,
@ -896,6 +899,7 @@ static const struct command_registration ftdi_command_handlers[] = {
.help = "set the USB bus location of the FTDI device",
.usage = "<bus>:port[,port]...",
},
#endif
{
.name = "ftdi_channel",
.handler = &ftdi_handle_channel_command,

4
src/jtag/drivers/mpsse.c
View File

@ -106,12 +106,13 @@ static bool string_descriptor_equal(libusb_device_handle *device, uint8_t str_in
static bool device_location_equal(libusb_device *device, const char *location)
{
bool result = false;
#ifdef HAVE_LIBUSB_GET_PORT_NUMBERS
char *loc = strdup(location);
uint8_t port_path[7];
int path_step, path_len;
uint8_t dev_bus = libusb_get_bus_number(device);
char *ptr;
bool result = false;
path_len = libusb_get_port_numbers(device, port_path, 7);
if (path_len == LIBUSB_ERROR_OVERFLOW) {
@ -154,6 +155,7 @@ static bool device_location_equal(libusb_device *device, const char *location)
done:
free(loc);
#endif
return result;
}