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add jtag/usb_common.[ch] files 

Begins to consolidate code used by several USB JTAG interfaces.
This first patch provides the required build system changes and
a common jtag_usb_open routine, which will replace the guts for
probing the busses and devices for possible VID/PID matches.
The following patches convert each driver to use it.
This commit is contained in:
Zachary T Welch 2009-11-19 12:02:07 -08:00
parent 3efc99b34a
commit 3a660e2293
4 changed files with 99 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
configure.in
View File

@ -996,6 +996,7 @@ if test $build_jlink = yes -o $build_vsllink = yes -o $build_usbprog = yes -o \
then
AC_CHECK_HEADERS([usb.h],[],
[AC_MSG_ERROR([usb.h is required to build some OpenOCD driver(s)])])
build_usb=yes
fi
AM_CONDITIONAL(RELEASE, test $build_release = yes)
@ -1021,6 +1022,7 @@ AM_CONDITIONAL(JLINK, test $build_jlink = yes)
AM_CONDITIONAL(VSLLINK, test $build_vsllink = yes)
AM_CONDITIONAL(RLINK, test $build_rlink = yes)
AM_CONDITIONAL(ARMJTAGEW, test $build_armjtagew = yes)
AM_CONDITIONAL(USB, test $build_usb = yes)
AM_CONDITIONAL(IS_CYGWIN, test $is_cygwin = yes)
AM_CONDITIONAL(IS_MINGW, test $is_mingw = yes)
AM_CONDITIONAL(IS_WIN32, test $is_win32 = yes)

7
src/jtag/Makefile.am
View File

@ -23,6 +23,10 @@ else
# Standard Driver: common files
DRIVERFILES += driver.c commands.c
if USB
DRIVERFILES += usb_common.c
endif
if BITBANG
DRIVERFILES += bitbang.c
endif
@ -92,7 +96,8 @@ noinst_HEADERS = \
rlink/ep1_cmd.h \
rlink/rlink.h \
rlink/st7.h \
minidummy/jtag_minidriver.h
minidummy/jtag_minidriver.h \
usb_common.h
EXTRA_DIST = startup.tcl

61
src/jtag/usb_common.c Normal file
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@ -0,0 +1,61 @@
/***************************************************************************
* Copyright (C) 2009 by Zachary T Welch <zw@superlucidity.net> *
* *
* 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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "usb_common.h"
static bool jtag_usb_match(struct usb_device *dev,
const uint16_t vids[], const uint16_t pids[])
{
for (unsigned i = 0; vids[i] && pids[i]; i++)
{
if (dev->descriptor.idVendor == vids[i] &&
dev->descriptor.idProduct == pids[i])
{
return true;
}
}
return false;
}
int jtag_usb_open(const uint16_t vids[], const uint16_t pids[],
struct usb_dev_handle **out)
{
usb_find_busses();
usb_find_devices();
struct usb_bus *busses = usb_get_busses();
for (struct usb_bus *bus = busses; bus; bus = bus->next)
{
for (struct usb_device *dev = bus->devices; dev; dev = dev->next)
{
if (!jtag_usb_match(dev, vids, pids))
continue;
*out = usb_open(dev);
if (NULL == *out)
return -errno;
return 0;
}
}
return -ENODEV;
}

30
src/jtag/usb_common.h Normal file
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@ -0,0 +1,30 @@
/***************************************************************************
* Copyright (C) 2009 by Zachary T Welch <zw@superlucidity.net> *
* *
* 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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifndef JTAG_USB_COMMON_H
#define JTAG_USB_COMMON_H
#include "types.h"
#include <usb.h>
int jtag_usb_open(const uint16_t vids[], const uint16_t pids[],
struct usb_dev_handle **out);
#endif // JTAG_USB_COMMON_H