From b302344779941f36129f1c09c24c5bbc414c4744 Mon Sep 17 00:00:00 2001 From: Mauro Gamba Date: Wed, 16 Nov 2011 15:01:04 +0100 Subject: libusb-1.0 support The configuration script check for libusb-1.0 availability first and only if not found check for libusb-0. So if both libraries are installed on the system the build script will use libusb-1.0 It's possible to force compiling with libusb-0 with the --enable-libusb0 switch. If the driver support only libusb0 the script check anly for it. Change-Id: I7eb045d4e2bd553abefad53f3f4023ff46b0f5f6 Signed-off-by: Mauro Gamba Reviewed-on: http://openocd.zylin.com/33 Tested-by: jenkins Reviewed-by: Spencer Oliver --- src/jtag/drivers/libusb1_common.c | 152 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 152 insertions(+) create mode 100644 src/jtag/drivers/libusb1_common.c (limited to 'src/jtag/drivers/libusb1_common.c') diff --git a/src/jtag/drivers/libusb1_common.c b/src/jtag/drivers/libusb1_common.c new file mode 100644 index 00000000..c6cb4943 --- /dev/null +++ b/src/jtag/drivers/libusb1_common.c @@ -0,0 +1,152 @@ +/*************************************************************************** + * Copyright (C) 2009 by Zachary T Welch * + * * + * Copyright (C) 2011 by Mauro Gamba * + * * + * 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 "log.h" +#include "libusb1_common.h" + +static struct libusb_context *jtag_libusb_context; /**< Libusb context **/ +static libusb_device **devs; /**< The usb device list **/ + +static bool jtag_libusb_match(struct jtag_libusb_device *dev, + const uint16_t vids[], const uint16_t pids[]) +{ + struct libusb_device_descriptor dev_desc; + + for (unsigned i = 0; vids[i] && pids[i]; i++) { + if (libusb_get_device_descriptor(dev, &dev_desc) == 0) { + if (dev_desc.idVendor == vids[i] && + dev_desc.idProduct == pids[i]) + return true; + } + } + return false; +} + +int jtag_libusb_open(const uint16_t vids[], const uint16_t pids[], + struct jtag_libusb_device_handle **out) +{ + int cnt, idx, errCode; + + if (libusb_init(&jtag_libusb_context) < 0) + return -ENODEV; + + libusb_set_debug(jtag_libusb_context, 3); + + cnt = libusb_get_device_list(jtag_libusb_context, &devs); + + for (idx = 0; idx < cnt; idx++) { + if (!jtag_libusb_match(devs[idx], vids, pids)) + continue; + + errCode = libusb_open(devs[idx], out); + + /** Free the device list **/ + libusb_free_device_list(devs, 1); + + if (errCode < 0) + return errCode; + return 0; + } + return -ENODEV; +} + +void jtag_libusb_close(jtag_libusb_device_handle *dev) +{ + /* Close device */ + jtag_libusb_close(dev); + + libusb_exit(jtag_libusb_context); +} + +int jtag_libusb_bulk_write(jtag_libusb_device_handle *dev, int ep, char *bytes, + int size, int timeout) +{ + int transferred = 0; + + libusb_bulk_transfer(dev, ep, (unsigned char *)bytes, size, + &transferred, timeout); + return transferred; +} + +int jtag_libusb_bulk_read(jtag_libusb_device_handle *dev, int ep, char *bytes, + int size, int timeout) +{ + int transferred = 0; + + libusb_bulk_transfer(dev, ep, (unsigned char *)bytes, size, + &transferred, timeout); + return transferred; +} + +int jtag_libusb_set_configuration(jtag_libusb_device_handle *devh, + int configuration) +{ + struct jtag_libusb_device *udev = jtag_libusb_get_device(devh); + int retCode = -99; + + struct libusb_config_descriptor *config; + + libusb_get_config_descriptor(udev, configuration, &config); + retCode = libusb_set_configuration(devh, config->bConfigurationValue); + + libusb_free_config_descriptor(config); + + return retCode; +} + +int jtag_libusb_get_endpoints(struct jtag_libusb_device *udev, + unsigned int *usb_read_ep, + unsigned int *usb_write_ep) +{ + const struct libusb_interface *inter; + const struct libusb_interface_descriptor *interdesc; + const struct libusb_endpoint_descriptor *epdesc; + struct libusb_config_descriptor *config; + + libusb_get_config_descriptor(udev, 0, &config); + for (int i = 0; i < (int)config->bNumInterfaces; i++) { + inter = &config->interface[i]; + + for (int j = 0; j < inter->num_altsetting; j++) { + interdesc = &inter->altsetting[j]; + for (int k = 0; + k < (int)interdesc->bNumEndpoints; k++) { + epdesc = &interdesc->endpoint[k]; + + uint8_t epnum = epdesc->bEndpointAddress; + bool is_input = epnum & 0x80; + LOG_DEBUG("usb ep %s %02x", + is_input ? "in" : "out", epnum); + + if (is_input) + *usb_read_ep = epnum; + else + *usb_write_ep = epnum; + } + } + } + libusb_free_config_descriptor(config); + + return 0; +} -- cgit v1.2.3-18-g5258