diff options
Diffstat (limited to 'usrp/host/lib/usrp_prims_libusb0.cc')
| -rw-r--r-- | usrp/host/lib/usrp_prims_libusb0.cc | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/usrp/host/lib/usrp_prims_libusb0.cc b/usrp/host/lib/usrp_prims_libusb0.cc new file mode 100644 index 000000000..7ff831064 --- /dev/null +++ b/usrp/host/lib/usrp_prims_libusb0.cc @@ -0,0 +1,207 @@ +/* -*- 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/usrp_prims.h" +#include "usrp_commands.h" +#include <usb.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 usb_device * +_get_usb_device (struct usb_dev_handle *udh) +{ + return usb_device (udh); +} + +struct usb_device_descriptor +_get_usb_device_descriptor (struct usb_device *q) +{ + return q->descriptor; +} +int +_get_usb_string_descriptor (struct usb_dev_handle *udh, int index, + unsigned char* data, int length) +{ + return usb_get_string_simple (udh, index, (char*) data, length); +} + +int +_usb_control_transfer (struct usb_dev_handle *udh, int request_type, + int request, int value, int index, + unsigned char *data, int length, unsigned int timeout) +{ + return usb_control_msg (udh, request_type,request, value, index, + (char*) data, length, (int) timeout); +} + + +// ---------------------------------------------------------------- + + +void +usrp_one_time_init (libusb_context **ctx) +{ + static bool first = true; + + if (first) { + first = false; + usb_init (); // usb library init + usb_find_busses (); + usb_find_devices (); + } +} + +void +usrp_rescan () +{ + usb_find_busses (); + usb_find_devices (); +} + + +// ---------------------------------------------------------------- + + +struct usb_device * +usrp_find_device (int nth, bool fx2_ok_p, libusb_context *ctx) +{ + struct usb_bus *p; + struct usb_device *q; + int n_found = 0; + + usrp_one_time_init (); + + p = usb_get_busses(); + while (p != NULL){ + q = p->devices; + while (q != NULL){ + 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 + } + q = q->next; + } + p = p->next; + } + return 0; // not found +} + +struct usb_dev_handle * +usrp_open_interface (struct usb_device *dev, int interface, int altinterface) +{ + struct usb_dev_handle *udh = usb_open (dev); + if (udh == 0) + return 0; + + if (dev != usb_device (udh)){ + fprintf (stderr, "%s:%d: internal error!\n", __FILE__, __LINE__); + abort (); + } + +#if defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) + // There's no get get_configuration function, and with some of the newer kernels + // setting the configuration, even if to the same value, hoses any other processes + // that have it open. Hence we opt to not set it at all (We've only + // got a single configuration anyway). This may hose the win32 stuff... + + // Appears to be required for libusb-win32 and Cygwin -- dew 09/20/06 + if (usb_set_configuration (udh, 1) < 0){ + /* + * Ignore this error. + * + * Seems that something changed in drivers/usb/core/devio.c:proc_setconfig such that + * it returns -EBUSY if _any_ of the interfaces of a device are open. + * We've only got a single configuration, so setting it doesn't even seem + * like it should be required. + */ + } +#endif + + if (usb_claim_interface (udh, interface) < 0){ + fprintf (stderr, "%s:usb_claim_interface: failed interface %d\n", __FUNCTION__,interface); + fprintf (stderr, "%s\n", usb_strerror()); + usb_close (udh); + return 0; + } + + if (usb_set_altinterface (udh, altinterface) < 0){ + fprintf (stderr, "%s:usb_set_alt_interface: failed\n", __FUNCTION__); + fprintf (stderr, "%s\n", usb_strerror()); + usb_release_interface (udh, interface); + usb_close (udh); + return 0; + } + + return udh; +} + +bool +usrp_close_interface (struct usb_dev_handle *udh) +{ + // we're assuming that closing an interface automatically releases it. + return usb_close (udh) == 0; +} + + +// ---------------------------------------------------------------- +// write vendor extension command to USRP + + +int +write_cmd (struct usb_dev_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 = usb_control_msg (udh, requesttype, request, value, index, + (char *) bytes, len, 1000); + if (r < 0){ + // we get EPIPE if the firmware stalls the endpoint. + if (errno != EPIPE) + fprintf (stderr, "usb_control_msg failed: %s\n", usb_strerror ()); + } + + return r; +} + |