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/* JTAG chain detection
Copyright (C) 2004 Andrew Rogers
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
Changes:
Sandro Amato [sdroamt@netscape.net] 26 Jun 2006 [applied 13 Jul 2006]:
Print also the location of the devices found in the jtag chain
to be used from jtagProgram.sh script...
Dmitry Teytelman [dimtey@gmail.com] 14 Jun 2006 [applied 13 Aug 2006]:
Code cleanup for clean -Wall compile.
Added support for FT2232 driver.
*/
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <memory>
#include "io_exception.h"
#include "ioparport.h"
#include "iofx2.h"
#include "ioxpc.h"
#include "ioftdi.h"
#include "iodebug.h"
#include "jtag.h"
#include "devicedb.h"
#include "utilities.h"
extern char *optarg;
void usage(void)
{
fprintf(stderr,
"\nUsage: readdna [-c cable_type] [-v]\n"
" -v\tverbose output\n"
" -J val\tRun at max with given JTAG Frequency, 0(default) means max. Rate of device\n"
" \tOnly used for FTDI cables for now\n\n"
" Supported cable types: pp, ftdi, fx2, xpc\n"
" \tOptional pp arguments:\n"
" \t\t[-d device] (e.g. /dev/parport0)\n"
" \tOptional fx2/ftdi/xpc arguments:\n"
" \t\t[-V vendor] (idVendor)\n"
" \t\t[-P product] (idProduct)\n"
" \t\t[-S description] (Product string)\n"
" \t\t[-s serial] (SerialNumber string)\n"
" \tOptional ftdi arguments:\n"
" \t\t[-t subtype]\n"
" \t\t\t(NONE\t\t(0x0403:0x0610) or\n"
" \t\t\t IKDA\t\t(0x0403:0x0610, EN_N on ACBUS2) or\n"
" \t\t\t OLIMEX\t\t(0x15b1:0x0003, JTAG_EN_N on ADBUS4, LED on ACBUS3))\n"
" \t\t\t AMONTEC\t(0x0403:0xcff8, JTAG_EN_N on ADBUS4)\n"
" \tOptional xpc arguments:\n"
" \t\t[-t subtype] (NONE or INT (Internal Chain on XPC, doesn't work for now on DLC10))\n");
exit(255);
}
unsigned int get_id(Jtag &jtag, DeviceDB &db, int chainpos, bool verbose)
{
int num=jtag.getChain();
DeviceID id;
if (num == 0)
{
fprintf(stderr,"No JTAG Chain found\n");
return 0;
}
// Synchronise database with chain of devices.
for(int i=0; i<num; i++){
id = jtag.getDeviceID(i);
int length = db.idToIRLength(id);
if (length > 0)
jtag.setDeviceIRLength(i, length);
else
{
fprintf(stderr,"Cannot find device having IDCODE=%08lx\n", (unsigned long)id);
return 0;
}
}
if(jtag.selectDevice(chainpos)<0){
fprintf(stderr,"Invalid chain position %d, position must be less than %d (but not less than 0).\n",chainpos,num);
return 0;
}
id = jtag.getDeviceID(chainpos);
if (verbose)
{
printf("JTAG chainpos: %d Device IDCODE = 0x%08lx Desc: %s\nProgramming: ", chainpos, (unsigned long)id, db.idToDescription(id));
fflush(stdout);
}
return id;
}
int main(int argc, char **args)
{
bool verbose = false;
bool use_ftd2xx = false;
struct cable_t cable;
char const *dev = 0;
char const *serial = 0;
char const *cablename = 0;
unsigned int jtag_freq = 0;
byte idata[8];
byte odata[8];
int chainpos =0;
char *devicedb = NULL;
std::auto_ptr<IOBase> io;
DeviceDB db(devicedb);
int res;
// Start from parsing command line arguments
while(true) {
switch(getopt(argc, args, "?hvc:d:J:L")) {
case -1:
goto args_done;
case 'v':
verbose = true;
break;
case 'J':
jtag_freq = atoi(optarg);
break;
case 'L':
use_ftd2xx = true;
break;
case 'c':
cablename = optarg;
break;
case 'd':
dev = optarg;
break;
case 's':
serial = optarg;
break;
case '?':
case 'h':
default:
usage();
}
}
args_done:
// Get rid of options
//printf("argc: %d\n", argc);
argc -= optind;
args += optind;
//printf("argc: %d\n", argc);
if((argc != 0) || (cablename == 0)) usage();
if (verbose)
fprintf(stderr, "Using %s\n", db.getFile().c_str());
CableDB cabledb(0);
res = cabledb.getCable(cablename, &cable);
res = getIO( &io, &cable, dev, serial, verbose, use_ftd2xx, jtag_freq);
if (res) /* some error happend*/
{
if (res == 1) exit(1);
else usage();
}
io.get()->setVerbose(verbose);
Jtag jtag(io.get());
jtag.setVerbose(verbose);
get_id (jtag, db, chainpos, verbose);
if (verbose)
fprintf(stderr, "Using %s\n", db.getFile().c_str());
#define CFG_IN 0x05
#define ISC_ENABLE 0x10
#define ISC_DISABLE 0x16
#define JPROGRAM 0x0b
#define ISC_DNA 0x31
#define BYPASS 0x3f
jtag.selectDevice(chainpos);
idata[0] = JPROGRAM;
jtag.shiftIR(idata);
idata[0] = CFG_IN;
do
jtag.shiftIR(idata, odata);
while (! (odata[0] & 0x10)); /* wait until configuration cleared */
/* As ISC_DNA only works on a unconfigured device, see AR #29977*/
idata[0] = ISC_ENABLE;
jtag.shiftIR(idata);
idata[0] = ISC_DNA;
jtag.shiftIR(idata);
jtag.shiftDR(0, odata, 64);
if (*(long long*)odata != -1LL)
printf("DNA is 0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
odata[0], odata[1], odata[2], odata[3],
odata[4], odata[5], odata[6], odata[7]);
idata[0] = ISC_DISABLE;
jtag.shiftIR(idata);
/* Release JTAG control over configuration (AR 16829)*/
jtag.tapTestLogicReset();
idata[0] = JPROGRAM;
jtag.shiftIR(idata);
/* Now device will reconfigure from standard configuration source */
idata[0] = BYPASS;
fprintf(stderr, "Will wait up to 10 seconds for device to reconfigure.");
fflush(stderr);
int i = 0;
do
{
jtag.Usleep(1000);
jtag.shiftIR(idata, odata);
if(i%250 == 249)
{
fprintf(stderr, ".");
fflush(stderr);
}
i++;
}
while ((( odata[0] & 0x23) != 0x21) && (i <10000));
fprintf(stderr, "\n");
return 0;
}
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