mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-12-14 04:00:34 +00:00
b849b20a8c
- Added a pre-compiled custom GN3S firmware. - Added a fully-compliant GNU Radio source block for GN3S USB dongle. It can be used also from GNU Radio companion and from Python applications. - Added a new GN3S_Signal_Source block. It is possible to disable the GN3S signal source compilation. See README. git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@217 64b25241-fba3-4117-9849-534c7e92360d
550 lines
14 KiB
C++
550 lines
14 KiB
C++
/*----------------------------------------------------------------------------------------------*/
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/*! \file gn3s.cpp
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//
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// FILENAME: gn3s.cpp
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//
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// DESCRIPTION: Impelements the GN3S class.
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//
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// DEVELOPERS: Gregory W. Heckler (2003-2009)
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//
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// LICENSE TERMS: Copyright (c) Gregory W. Heckler 2009
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//
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// This file is part of the GPS Software Defined Radio (GPS-SDR)
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//
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// The GPS-SDR is free software; you can redistribute it and/or modify it under the terms of the
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// GNU General Public License as published by the Free Software Foundation; either version 2 of
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// the License, or (at your option) any later version. The GPS-SDR is distributed in the hope that
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// it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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// more details.
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//
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// Note: Comments within this file follow a syntax that is compatible with
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// DOXYGEN and are utilized for automated document extraction
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//
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// Reference:
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*/
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/*----------------------------------------------------------------------------------------------*/
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#include "gn3s.h"
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#include <iostream>
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#include <fstream>
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#include <stdlib.h>
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#include <usb.h>
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#include "fusb_linux.h"
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static char debug = 1; //!< 1 = Verbose
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/*----------------------------------------------------------------------------------------------*/
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gn3s::gn3s(int _which)
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{
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//int fsize;
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bool ret;
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which = _which;
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fx2_device = NULL;
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fx2_handle = NULL;
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gn3s_vid = GN3S_VID;
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gn3s_pid = GN3S_PID;
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/* Get the firmware embedded in the executable */
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//fstart = (int) &_binary_usrp_gn3s_firmware_ihx_start;
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//fsize = strlen(_binary_usrp_gn3s_firmware_ihx_start);
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//gn3s_firmware = new char[fsize + 10];
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//memcpy(&gn3s_firmware[0], (void *)fstart, fsize);
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// Load the firmware from external file (Javier)
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//gn3s_firmware[fsize] = NULL;
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/* Search all USB busses for the device specified by VID/PID */
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fx2_device = usb_fx2_find(gn3s_vid, gn3s_pid, debug, 0);
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if (!fx2_device)
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{
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/* Program the board */
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ret = prog_gn3s_board();
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if(ret)
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{
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fprintf(stdout, "Could not flash GN3S device\n");
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throw(1);
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}
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/* Need to wait to catch change */
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sleep(2);
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/* Search all USB busses for the device specified by VID/PID */
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fx2_device = usb_fx2_find(gn3s_vid, gn3s_pid, debug, 0);
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}
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else
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{
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fprintf(stdout, "Found GN3S Device\n");
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}
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/* Open and configure FX2 device if found... */
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ret = usb_fx2_configure(fx2_device, &fx2_config);
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if(ret)
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{
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fprintf(stdout, "Could not obtain a handle to the GN3S device\n");
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throw(1);
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}
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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gn3s::~gn3s()
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{
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usrp_xfer(VRQ_XFER, 0);
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//delete gn3s_firmware;
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delete fx2_config.d_ephandle;
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delete fx2_config.d_devhandle;
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usb_release_interface(fx2_config.udev, fx2_config.interface);
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usb_close(fx2_config.udev);
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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int gn3s::prog_gn3s_board()
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{
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char a;
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struct usb_bus *bus;
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struct usb_device *dev;
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//struct usb_dev_handle *han;
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int vid, pid;
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dev = NULL;
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usb_init();
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usb_find_busses();
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usb_find_devices();
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vid = (VID_OLD);
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pid = (PID_OLD);
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for(bus = usb_busses; bus; bus = bus->next)
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{
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for(dev = bus->devices; dev; dev = dev->next)
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{
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if((dev->descriptor.idVendor == vid) && (dev->descriptor.idProduct == pid))
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{
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fx2_device = dev;
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fprintf(stdout,"GN3S Device Found... awaiting firmware flash \n");
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break;
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}
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}
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}
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if(fx2_device == NULL)
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{
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fprintf(stderr,"Cannot find vid 0x%x pid 0x%x \n", vid, pid);
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return -1;
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}
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printf("Using device vendor id 0x%04x product id 0x%04x\n",
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fx2_device->descriptor.idVendor, fx2_device->descriptor.idProduct);
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fx2_handle = usb_open(fx2_device);
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/* Do the first set 0xE600 1 */
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char c[] = "1";
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char d[] = "0";
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a = atoz(c);
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fprintf(stdout,"GN3S flashing ... \n");
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upload_ram(&a, (PROG_SET_CMD),1);
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program_fx2(NULL, 1);
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a = atoz(d);
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upload_ram(&a, (PROG_SET_CMD),1);
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fprintf(stdout,"GN3S flash complete! \n");
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usb_close(fx2_handle);
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return(0);
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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int gn3s::atoz(char *s)
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{
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int a;
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if(!strncasecmp("0x", s, 2)){
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sscanf(s, "%x", &a);
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return a;
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}
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return atoi(s);
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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void gn3s::upload_ram(char *buf, int start, int len)
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{
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int i;
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int tlen;
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int quanta = 16;
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int a;
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for (i = start; i < start + len; i += quanta) {
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tlen = len + start - i;
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if (tlen > quanta)
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tlen = quanta;
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if (debug >= 3)
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printf("i = %d, tlen = %d \n", i, tlen);
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a = usb_control_msg(fx2_handle, 0x40, 0xa0, i, 0,
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buf + (i - start), tlen, 1000);
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if (a < 0) {
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fprintf(stderr, "Request to upload ram contents failed: %s\n",
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usb_strerror());
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return;
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}
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}
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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void gn3s::program_fx2(char *filename, char mem)
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{
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FILE *f;
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char s[1024];
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char data[256];
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char checksum, a;
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int length, addr, type, i;
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unsigned int b;
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// *** mod javier: load firmware from external file ***
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//f = tmpfile();
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/* Dump firmware into temp file */
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//fputs(gn3s_firmware, f);
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//rewind(f);
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f = fopen ("gn3s_firmware.ihx","r");
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if (f!=NULL)
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{
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printf("GN3S firmware file found!\n");
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}else{
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printf("Could not open GN3S firmware file!\n");
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return;
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}
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while (!feof(f)) {
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fgets(s, 1024, f); /* we should not use more than 263 bytes normally */
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if (s[0] != ':') {
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fprintf(stderr, "%s: invalid string: \"%s\"\n", filename, s);
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continue;
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}
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sscanf(s + 1, "%02x", &length);
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sscanf(s + 3, "%04x", &addr);
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sscanf(s + 7, "%02x", &type);
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if (type == 0) {
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// printf("Programming %3d byte%s starting at 0x%04x",
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// length, length==1?" ":"s", addr);
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a = length + (addr & 0xff) + (addr >> 8) + type;
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for (i = 0; i < length; i++) {
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sscanf(s + 9 + i * 2, "%02x", &b);
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data[i] = b;
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a = a + data[i];
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}
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sscanf(s + 9 + length * 2, "%02x", &b);
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checksum = b;
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if (((a + checksum) & 0xff) != 0x00) {
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printf(" ** Checksum failed: got 0x%02x versus 0x%02x\n", (-a)
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& 0xff, checksum);
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continue;
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} else {
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//printf(", checksum ok\n");
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}
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upload_ram(data, addr, length);
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} else {
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if (type == 0x01) {
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printf("End of file\n");
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fclose(f);
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return;
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} else {
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if (type == 0x02) {
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printf("Extended address: whatever I do with it ?\n");
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continue;
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}
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}
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}
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}
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fclose(f);
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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struct usb_device* gn3s::usb_fx2_find(int vid, int pid, char info, int ignore)
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{
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struct usb_bus *bus;
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struct usb_device *dev;
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struct usb_device *fx2 = NULL;
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usb_dev_handle *udev;
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int count = 0;
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int ret;
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char str[256];
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usb_init();
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usb_find_busses();
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usb_find_devices();
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for(bus = usb_busses; bus; bus = bus->next)
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{
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for(dev = bus->devices; dev; dev = dev->next)
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{
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if((dev->descriptor.idVendor == vid) && (dev->descriptor.idProduct == pid))
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{
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fx2 = dev;
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}
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if(fx2 != NULL && info)
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{
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udev = usb_open(fx2);
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if(udev && dev->descriptor.idVendor == vid && dev->descriptor.idProduct == pid && count < ignore)
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{
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if(fx2->descriptor.iManufacturer)
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{
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ret = usb_get_string_simple(udev, fx2->descriptor.iManufacturer, str, sizeof(str));
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if(ret > 0)
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printf("- Manufacturer : %s\n", str);
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else
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printf("- Unable to fetch manufacturer string\n");
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}
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if(fx2->descriptor.iProduct)
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{
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ret = usb_get_string_simple(udev, fx2->descriptor.iProduct, str, sizeof(str));
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if(ret > 0)
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printf("- Product : %s\n", str);
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else
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printf("- Unable to fetch product string\n");
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}
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if(fx2->descriptor.iSerialNumber)
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{
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ret = usb_get_string_simple(udev, fx2->descriptor.iSerialNumber, str, sizeof(str));
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if(ret > 0)
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printf("- Serial Number: %s\n", str);
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else
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printf("- Unable to fetch serial number string\n");
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}
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usb_close (udev);
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return fx2;
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}
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else if(udev && dev->descriptor.idVendor == vid && dev->descriptor.idProduct == pid && count >= ignore)
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{
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count++;
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}
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if(!fx2->config)
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{
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printf(" Could not retrieve descriptors\n");
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continue;
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}
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for(int i = 0; i < fx2->descriptor.bNumConfigurations; i++)
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{
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//print_configuration(&fx2->config[i]);
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}
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}
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}
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}
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return fx2;
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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bool gn3s::usb_fx2_configure(struct usb_device *fx2, fx2Config *fx2c)
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{
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char status = 0;
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int interface = RX_INTERFACE;
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int altinterface = RX_ALTINTERFACE;
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usb_dev_handle *udev;
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fusb_ephandle *d_ephandle;
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fusb_devhandle *d_devhandle;
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udev = usb_open(fx2);
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if(!udev)
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{
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fprintf(stdout, "Could not obtain a handle to GNSS Front-End device \n");
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return -1;
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}
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else
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{
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if(debug)
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printf("Received handle for GNSS Front-End device \n");
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if(usb_set_configuration (udev, 1) < 0)
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{
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fprintf (stdout,
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"error in %s, \n%s \n",
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__FUNCTION__,
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usb_strerror());
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usb_close (udev);
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status = -1;
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}
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if(usb_claim_interface (udev, interface) < 0)
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{
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fprintf (stdout,
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"error in %s, \n%s \n",
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__FUNCTION__,
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usb_strerror());
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usb_close (udev);
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fprintf (stdout, "\nDevice not programmed? \n");
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usb_close (udev);
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status = -1;
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throw(0);
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}
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if(usb_set_altinterface (udev, altinterface) < 0)
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{
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fprintf (stdout,
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"error in %s, \n%s \n",
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__FUNCTION__,
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usb_strerror());
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usb_close (udev);
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usb_release_interface (udev, interface);
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usb_close (udev);
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status = -1;
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}
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d_devhandle = make_devhandle(udev);
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d_ephandle = d_devhandle->make_ephandle(RX_ENDPOINT, true, FUSB_BLOCK_SIZE, FUSB_NBLOCKS);
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if(!d_ephandle->start())
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{
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fprintf (stdout, "usrp0_rx: failed to start end point streaming");
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usb_strerror ();
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status = -1;
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}
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if(status == 0)
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{
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fx2c->interface = interface;
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fx2c->altinterface = altinterface;
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fx2c->udev = udev;
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fx2c->d_devhandle = d_devhandle;
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fx2c->d_ephandle = d_ephandle;
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return 0;
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}
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else
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{
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return -1;
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}
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}
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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fusb_devhandle* gn3s::make_devhandle(usb_dev_handle *udh)
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{
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return new fusb_devhandle_linux(udh);
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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int gn3s::read(void *buff, int bytes)
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{
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return(fx2_config.d_ephandle->read(buff, bytes));
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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bool gn3s::check_rx_overrun()
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{
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bool overrun;
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_get_status(GS_RX_OVERRUN, &overrun);
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return(overrun);
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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bool gn3s::_get_status(int command, bool *trouble)
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{
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unsigned char status;
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if(write_cmd(VRQ_GET_STATUS, 0, command, &status, sizeof(status)) != sizeof (status))
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return false;
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*trouble = status;
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return true;
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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bool gn3s::usrp_xfer(char VRQ_TYPE, bool start)
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{
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int r;
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r = write_cmd(VRQ_TYPE, start, 0, 0, 0);
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return(r == 0);
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}
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/*----------------------------------------------------------------------------------------------*/
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/*----------------------------------------------------------------------------------------------*/
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int gn3s::write_cmd(int request, int value, int index, unsigned char *bytes, int len)
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{
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int requesttype;
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int r;
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requesttype = (request & 0x80) ? VRT_VENDOR_IN : VRT_VENDOR_OUT;
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r = usb_control_msg (fx2_config.udev, requesttype, request, value, index, (char *) bytes, len, 1000);
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if(r < 0)
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{
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/* We get EPIPE if the firmware stalls the endpoint. */
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if(errno != EPIPE)
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fprintf (stdout, "usb_control_msg failed: %s\n", usb_strerror());
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}
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return r;
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}
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/*----------------------------------------------------------------------------------------------*/
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