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Diffstat (limited to 'gdb/JTAG_download.c')
| -rwxr-xr-x | gdb/JTAG_download.c | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/gdb/JTAG_download.c b/gdb/JTAG_download.c new file mode 100755 index 00000000000..d3f0626906a --- /dev/null +++ b/gdb/JTAG_download.c @@ -0,0 +1,208 @@ +/* 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; +} + +/******************************************************************************/ |