diff options
Diffstat (limited to 'usrp/host/lib/usrp_prims_libusb1.cc')
| -rw-r--r-- | usrp/host/lib/usrp_prims_libusb1.cc | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/usrp/host/lib/usrp_prims_libusb1.cc b/usrp/host/lib/usrp_prims_libusb1.cc new file mode 100644 index 000000000..cf1f8fe07 --- /dev/null +++ b/usrp/host/lib/usrp_prims_libusb1.cc @@ -0,0 +1,202 @@ +/* -*- c++ -*- */ +/* + * Copyright 2003,2004,2006,2009 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio 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 3, or (at your option) + * any later version. + * + * GNU Radio 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 GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "usrp_primsi.h" +#include "usrp_commands.h" +#include <libusb-1.0/libusb.h> +#include <errno.h> +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <ad9862.h> +#include <assert.h> + +extern "C" { +#include "md5.h" +}; + +using namespace ad9862; + +/* + * libusb 0.12 / 1.0 compatibility + */ + +struct libusb_device * +_get_usb_device (struct libusb_device_handle *udh) +{ + return libusb_get_device (udh); +} + +struct libusb_device_descriptor +_get_usb_device_descriptor(struct libusb_device *q) +{ + int ret; + struct libusb_device_descriptor desc; + + if ((ret = libusb_get_device_descriptor(q, &desc)) < 0) + fprintf (stderr, "usrp: libusb_get_device_descriptor failed %d\n", ret); + + return desc; +} + +int +_get_usb_string_descriptor (struct libusb_device_handle *udh, int index, + unsigned char* data, int length) +{ + return libusb_get_string_descriptor_ascii (udh, (uint8_t) index, data, length); +} + +int +_usb_control_transfer (struct libusb_device_handle *udh, int request_type, + int request, int value, int index, + unsigned char *data, int length, unsigned int timeout) +{ + return libusb_control_transfer (udh, request_type, request, value, index, + data, length, timeout); +} + + +// ---------------------------------------------------------------- + + +void +usrp_one_time_init (libusb_context **ctx) +{ + int ret; + + if ((ret = libusb_init (ctx)) < 0) + fprintf (stderr, "usrp: libusb_init failed %i\n", ret); +} + +void +usrp_rescan () +{ + // nop +} + + +struct libusb_device * +usrp_find_device (int nth, bool fx2_ok_p, libusb_context *ctx) +{ + libusb_device **list; + + struct libusb_device *q; + int n_found = 0; + + // Make sure not operating on default context. There are cases where operating + // with a single global (NULL) context may be preferable, so this check can be + // skipped if you know what you're doing. + assert (ctx != NULL); + + size_t cnt = libusb_get_device_list(ctx, &list); + size_t i = 0; + + if (cnt < 0) + fprintf(stderr, "usrp: libusb_get_device_list failed %d\n", cnt); + + for (i = 0; i < cnt; i++) { + q = list[i]; + if (usrp_usrp_p (q) || (fx2_ok_p && usrp_fx2_p (q))) { + if (n_found == nth) // return this one + return q; + n_found++; // keep looking + } + } + + // The list needs to be freed. Right now just release it if nothing is found. + libusb_free_device_list(list, 1); + + return 0; // not found +} + +struct libusb_device_handle * +usrp_open_interface (libusb_device *dev, int interface, int altinterface) +{ + libusb_device_handle *udh; + int ret; + + if (libusb_open (dev, &udh) < 0) + return 0; + + if (dev != libusb_get_device (udh)){ + fprintf (stderr, "%s:%d: internal error!\n", __FILE__, __LINE__); + abort (); + } + + if ((ret = libusb_claim_interface (udh, interface)) < 0) { + fprintf (stderr, "%s:usb_claim_interface: failed interface %d\n", __FUNCTION__,interface); + fprintf (stderr, "%d\n", ret); + libusb_close (udh); + return 0; + } + + if ((ret = libusb_set_interface_alt_setting (udh, interface, + altinterface)) < 0) { + fprintf (stderr, "%s:usb_set_alt_interface: failed\n", __FUNCTION__); + fprintf (stderr, "%d\n", ret); + libusb_release_interface (udh, interface); + libusb_close (udh); + return 0; + } + + return udh; +} + +bool +usrp_close_interface (libusb_device_handle *udh) +{ + // returns void + libusb_close(udh); + return 0; +} + + +// ---------------------------------------------------------------- +// write vendor extension command to USRP + + +int +write_cmd (struct libusb_device_handle *udh, + int request, int value, int index, + unsigned char *bytes, int len) +{ + int requesttype = (request & 0x80) ? VRT_VENDOR_IN : VRT_VENDOR_OUT; + + int r = libusb_control_transfer(udh, requesttype, request, value, index, + (unsigned char *) bytes, len, 1000); + + if (r < 0){ + // we get EPIPE if the firmware stalls the endpoint. + if (r != LIBUSB_ERROR_PIPE) { + fprintf (stderr, "libusb_control_transfer failed: %i\n", r); + } + } + + return r; +} + |