From c62085a66bd97f389f49167492f7dccfb0b02976 Mon Sep 17 00:00:00 2001
From: ttsou <ttsou@vt.edu>
Date: Thu, 27 Aug 2009 18:13:54 -0400
Subject: first shot at re-adding libusb-0.12 support
---
usrp/host/lib/usrp_prims_libusb.cc | 490 +++++++++++++++++++++++++++++++++++++
1 file changed, 490 insertions(+)
create mode 100644 usrp/host/lib/usrp_prims_libusb.cc
(limited to 'usrp/host/lib/usrp_prims_libusb.cc')
diff --git a/usrp/host/lib/usrp_prims_libusb.cc b/usrp/host/lib/usrp_prims_libusb.cc
new file mode 100644
index 0000000000..841d447ae4
--- /dev/null
+++ b/usrp/host/lib/usrp_prims_libusb.cc
@@ -0,0 +1,490 @@
+/* -*- 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 "usrp_ids.h"
+#include "usrp_i2c_addr.h"
+#include "fpga_regs_common.h"
+#include "fpga_regs_standard.h"
+#include <usb.h>
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <time.h> // FIXME should check with autoconf (nanosleep)
+#include <algorithm>
+#include <ad9862.h>
+#include <assert.h>
+
+extern "C" {
+#include "md5.h"
+};
+
+#define VERBOSE 0
+
+using namespace ad9862;
+
+/*
+ * Forward Declarations
+ */
+
+bool our_nanosleep (const struct timespec *delay);
+const char *get_proto_filename (const std::string user_filename,
+ const char *env_var,
+ const char *def);
+char *find_file (const char *filename, int hw_rev);
+void load_status_msg (usrp_load_status_t s, const char *type,
+ const char *filename);
+bool usrp1_fpga_write (libusb_device_handle *udh, int regno, int value);
+bool usrp1_fpga_read (libusb_device_handle *udh, int regno, int *value);
+bool usrp_set_switch (libusb_device_handle *udh, int cmd_byte, bool on);
+
+bool usrp_set_fpga_reset (struct usb_dev_handle *udh, bool on);
+bool usrp_set_fpga_tx_enable (struct usb_dev_handle *udh, bool on);
+bool usrp_set_fpga_rx_enable (struct usb_dev_handle *udh, bool on);
+bool usrp_set_fpga_tx_reset (struct usb_dev_handle *udh, bool on);
+bool usrp_set_fpga_rx_reset (struct usb_dev_handle *udh, bool on);
+
+
+
+static const int FIRMWARE_HASH_SLOT = 0;
+static const int FPGA_HASH_SLOT = 1;
+
+static const int hash_slot_addr[2] = {
+ USRP_HASH_SLOT_0_ADDR,
+ USRP_HASH_SLOT_1_ADDR
+};
+
+static const char *default_firmware_filename = "std.ihx";
+static const char *default_fpga_filename = "std_2rxhb_2tx.rbf";
+
+#include "std_paths.h"
+#include <stdio.h>
+
+void
+usrp_one_time_init ()
+{
+ 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 ();
+}
+
+// ----------------------------------------------------------------
+
+/*
+ * q must be a real USRP, not an FX2. Return its hardware rev number.
+ */
+int
+usrp_hw_rev (struct usb_device *q)
+{
+ return q->descriptor.bcdDevice & 0x00FF;
+}
+
+/*
+ * q must be a real USRP, not an FX2. Return true if it's configured.
+ */
+static bool
+_usrp_configured_p (struct usb_device *q)
+{
+ return (q->descriptor.bcdDevice & 0xFF00) != 0;
+}
+
+bool
+usrp_usrp_p (struct usb_device *q)
+{
+ return (q->descriptor.idVendor == USB_VID_FSF
+ && q->descriptor.idProduct == USB_PID_FSF_USRP);
+}
+
+bool
+usrp_fx2_p (struct usb_device *q)
+{
+ return (q->descriptor.idVendor == USB_VID_CYPRESS
+ && q->descriptor.idProduct == USB_PID_CYPRESS_FX2);
+}
+
+// ----------------------------------------------------------------
+
+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 internal ram using Cypress vendor extension
+
+bool
+write_internal_ram (struct usb_dev_handle *udh, unsigned char *buf,
+ int start_addr, size_t len)
+{
+ int addr;
+ int n;
+ int a;
+ int quanta = MAX_EP0_PKTSIZE;
+
+ for (addr = start_addr; addr < start_addr + (int) len; addr += quanta){
+ n = len + start_addr - addr;
+ if (n > quanta)
+ n = quanta;
+
+ a = usb_control_msg (udh, 0x40, 0xA0,
+ addr, 0, (char *)(buf + (addr - start_addr)), n, 1000);
+
+ if (a < 0){
+ fprintf(stderr,"write_internal_ram failed: %s\n", usb_strerror());
+ return false;
+ }
+ }
+ return true;
+}
+
+
+// ----------------------------------------------------------------
+// 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;
+}
+
+
+bool
+usrp_set_hash (struct usb_dev_handle *udh, int which,
+ const unsigned char hash[USRP_HASH_SIZE])
+{
+ which &= 1;
+
+ // we use the Cypress firmware down load command to jam it in.
+ int r = usb_control_msg (udh, 0x40, 0xa0, hash_slot_addr[which], 0,
+ (char *) hash, USRP_HASH_SIZE, 1000);
+ return r == USRP_HASH_SIZE;
+}
+
+bool
+usrp_get_hash (struct usb_dev_handle *udh, int which,
+ unsigned char hash[USRP_HASH_SIZE])
+{
+ which &= 1;
+
+ // we use the Cypress firmware upload command to fetch it.
+ int r = usb_control_msg (udh, 0xc0, 0xa0, hash_slot_addr[which], 0,
+ (char *) hash, USRP_HASH_SIZE, 1000);
+ return r == USRP_HASH_SIZE;
+}
+
+bool
+usrp_write_fpga_reg (struct usb_dev_handle *udh, int reg, int value)
+{
+ switch (usrp_hw_rev (usb_device (udh))){
+ case 0: // not supported ;)
+ abort();
+
+ default:
+ return usrp1_fpga_write (udh, reg, value);
+ }
+}
+
+bool
+usrp_read_fpga_reg (struct usb_dev_handle *udh, int reg, int *value)
+{
+ switch (usrp_hw_rev (usb_device (udh))){
+ case 0: // not supported ;)
+ abort();
+
+ default:
+ return usrp1_fpga_read (udh, reg, value);
+ }
+}
+
+
+
+
+static usb_dev_handle *
+open_nth_cmd_interface (int nth)
+{
+ struct usb_device *udev = usrp_find_device (nth);
+ if (udev == 0){
+ fprintf (stderr, "usrp: failed to find usrp[%d]\n", nth);
+ return 0;
+ }
+
+ struct usb_dev_handle *udh;
+
+ udh = usrp_open_cmd_interface (udev);
+ if (udh == 0){
+ // FIXME this could be because somebody else has it open.
+ // We should delay and retry...
+ fprintf (stderr, "open_nth_cmd_interface: open_cmd_interface failed\n");
+ usb_strerror ();
+ return 0;
+ }
+
+ return udh;
+}
+
+
+usrp_load_status_t
+usrp_load_firmware_nth (int nth, const char *filename, bool force, libusb_context *ctx){
+ struct usb_dev_handle *udh = open_nth_cmd_interface (nth);
+ if (udh == 0)
+ return ULS_ERROR;
+
+ usrp_load_status_t s = usrp_load_firmware (udh, filename, force);
+ usrp_close_interface (udh);
+
+ switch (s){
+
+ case ULS_ALREADY_LOADED: // nothing changed...
+ return ULS_ALREADY_LOADED;
+ break;
+
+ case ULS_OK:
+ // we loaded firmware successfully.
+
+ // It's highly likely that the board will renumerate (simulate a
+ // disconnect/reconnect sequence), invalidating our current
+ // handle.
+
+ // FIXME. Turn this into a loop that rescans until we refind ourselves
+
+ struct timespec t; // delay for 1 second
+ t.tv_sec = 2;
+ t.tv_nsec = 0;
+ our_nanosleep (&t);
+
+ usb_find_busses (); // rescan busses and devices
+ usb_find_devices ();
+
+ return ULS_OK;
+
+ default:
+ case ULS_ERROR: // some kind of problem
+ return ULS_ERROR;
+ }
+}
+
+bool
+usrp_load_standard_bits (int nth, bool force,
+ const std::string fpga_filename,
+ const std::string firmware_filename,
+ libusb_context *ctx)
+{
+ usrp_load_status_t s;
+ const char *filename;
+ const char *proto_filename;
+ int hw_rev;
+
+ // first, figure out what hardware rev we're dealing with
+ {
+ struct usb_device *udev = usrp_find_device (nth);
+ if (udev == 0){
+ fprintf (stderr, "usrp: failed to find usrp[%d]\n", nth);
+ return false;
+ }
+ hw_rev = usrp_hw_rev (udev);
+ }
+
+ // start by loading the firmware
+
+ proto_filename = get_proto_filename(firmware_filename, "USRP_FIRMWARE",
+ default_firmware_filename);
+ filename = find_file(proto_filename, hw_rev);
+ if (filename == 0){
+ fprintf (stderr, "Can't find firmware: %s\n", proto_filename);
+ return false;
+ }
+
+ s = usrp_load_firmware_nth (nth, filename, force);
+ load_status_msg (s, "firmware", filename);
+
+ if (s == ULS_ERROR)
+ return false;
+
+ // if we actually loaded firmware, we must reload fpga ...
+ if (s == ULS_OK)
+ force = true;
+
+ // now move on to the fpga configuration bitstream
+
+ proto_filename = get_proto_filename(fpga_filename, "USRP_FPGA",
+ default_fpga_filename);
+ filename = find_file (proto_filename, hw_rev);
+ if (filename == 0){
+ fprintf (stderr, "Can't find fpga bitstream: %s\n", proto_filename);
+ return false;
+ }
+
+ struct usb_dev_handle *udh = open_nth_cmd_interface (nth);
+ if (udh == 0)
+ return false;
+
+ s = usrp_load_fpga (udh, filename, force);
+ usrp_close_interface (udh);
+ load_status_msg (s, "fpga bitstream", filename);
+
+ if (s == ULS_ERROR)
+ return false;
+
+ return true;
+}
+
+void
+power_down_9862s (struct usb_dev_handle *udh)
+{
+ static const unsigned char regs[] = {
+ REG_RX_PWR_DN, 0x01, // everything
+ REG_TX_PWR_DN, 0x0f, // pwr dn digital and analog_both
+ REG_TX_MODULATOR, 0x00 // coarse & fine modulators disabled
+ };
+
+ switch (usrp_hw_rev (usb_device (udh))){
+ case 0:
+ break;
+
+ default:
+ usrp_9862_write_many_all (udh, regs, sizeof (regs));
+ break;
+ }
+}
+
+
+std::string
+usrp_serial_number(struct usb_dev_handle *udh)
+{
+ unsigned char iserial = usb_device(udh)->descriptor.iSerialNumber;
+ if (iserial == 0)
+ return "";
+
+ char buf[1024];
+ if (usb_get_string_simple(udh, iserial, buf, sizeof(buf)) < 0)
+ return "";
+
+ return buf;
+}
--
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