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/* Target dependent code for ARC700, for GDB, the GNU debugger.
Copyright 2008, 2009 Free Software Foundation, Inc.
Contributed by ARC International (www.arc.com)
Authors:
Richard Stuckey <richard.stuckey@arc.com>
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 3 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, see <http://www.gnu.org/licenses/>. */
/******************************************************************************/
/* */
/* Outline: */
/* This module contains a test driver for the JTAG operations module of */
/* the ARC port of gdb. It measures the speed at which data can be */
/* downloaded to the target. */
/* */
/* Usage: */
/* <driver> [ -c ] [ -d ] [ -r <count> ] */
/* */
/* where -c specifies target connection & disconnection only */
/* -d switches on JTAG operation debuggging */
/* -r specifies the JTAG operation retry count */
/* */
/******************************************************************************/
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdarg.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include "arc-jtag-ops.h"
/* -------------------------------------------------------------------------- */
/* local data */
/* -------------------------------------------------------------------------- */
#define MB 1024 * 1024
#define DATA_AREA 0x00001000
#define DATA_AREA_SIZE 1 * MB
static ARC_Byte data[DATA_AREA_SIZE];
static Boolean test = TRUE;
/* -------------------------------------------------------------------------- */
/* externally visible data */
/* -------------------------------------------------------------------------- */
/* global debug flag */
Boolean arc_debug_target;
/* -------------------------------------------------------------------------- */
/* local functions */
/* -------------------------------------------------------------------------- */
static void failed(const char* fmt, ...)
{
va_list ap;
printf("*** FAILED: ");
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
// exit(EXIT_FAILURE);
}
static void run_test(void)
{
unsigned int i;
unsigned int bytes;
struct timeval start_time, end_time;
long long int time_count;
for (i = 0; i < DATA_AREA_SIZE; i++)
data[i] = (ARC_Byte) i;
gettimeofday (&start_time, NULL);
bytes = arc_jtag_ops.memory_write_chunk(DATA_AREA, data, DATA_AREA_SIZE);
gettimeofday (&end_time, NULL);
if (bytes != DATA_AREA_SIZE)
failed("memory write: %d", bytes);
/* Compute the elapsed time in milliseconds, as a tradeoff between
accuracy and overflow. */
time_count = (end_time.tv_sec - start_time.tv_sec) * 1000;
time_count += (end_time.tv_usec - start_time.tv_usec) / 1000;
if (time_count > 0)
{
unsigned long rate = (bytes * 1000) / time_count;
printf("0x%x bytes downloaded in %lld milliseconds\n", bytes, time_count);
printf("transfer rate: %lu bytes/sec\n", rate);
}
gettimeofday (&start_time, NULL);
bytes = arc_jtag_ops.memory_write_pattern(DATA_AREA, 0, DATA_AREA_SIZE);
gettimeofday (&end_time, NULL);
if (bytes != DATA_AREA_SIZE)
failed("memory fill zero: %d", bytes);
/* Compute the elapsed time in milliseconds, as a tradeoff between
accuracy and overflow. */
time_count = (end_time.tv_sec - start_time.tv_sec) * 1000;
time_count += (end_time.tv_usec - start_time.tv_usec) / 1000;
if (time_count > 0)
{
unsigned long rate = (bytes * 1000) / time_count;
printf("0x%x bytes zeroed in %lld milliseconds\n", bytes, time_count);
printf("zero rate: %lu bytes/sec\n", rate);
}
}
static void process_options(int argc, char** argv)
{
int c;
while ((c = getopt (argc, argv, "dcr:")) != -1)
{
switch (c)
{
case 'd':
arc_jtag_ops.state_machine_debug = TRUE;
break;
case 'r':
arc_jtag_ops.retry_count = atoi(optarg);
break;
case 'c':
test = FALSE;
break;
default:
fprintf(stderr, "Usage: %s [ -d ]\n", argv[0]);
exit(EXIT_FAILURE);
}
}
}
/* -------------------------------------------------------------------------- */
/* externally visible functions */
/* -------------------------------------------------------------------------- */
extern void _initialize_arc_jtag_ops(void);
int main(int argc, char** argv)
{
Boolean opened;
printf("Starting test of ARC JTAG download...\n");
_initialize_arc_jtag_ops();
process_options(argc, argv);
opened = arc_jtag_ops.open();
if (opened)
{
printf("ARC processor is connected\n");
if (test)
run_test();
arc_jtag_ops.close();
}
printf("Finished test of ARC JTAG download\n");
return 0;
}
/******************************************************************************/
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