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135 lines
3.3 KiB
135 lines
3.3 KiB
/*
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* Remote Laboratory Instrumentation Server
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* (c) 2009 Timothy Pearson
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* Raptor Engineering
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* http://www.raptorengineeringinc.com
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*/
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#include <ctype.h>
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#include <errno.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <getopt.h>
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#include "gpib/ib.h"
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char falpha[1024];
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const char * scopeLongDescription (const char * scopeType) {
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if (strcmp("HP54600OS", scopeType) == 0) {
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return "Hewlett Packard 54600 series";
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}
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else if (strcmp("TDS744AOS", scopeType) == 0) {
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return "Tektronix 744A series";
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}
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else if (strcmp("TDS744COS", scopeType) == 0) {
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return "Tektronix 744C series";
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}
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else {
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return "UNKNOWN";
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}
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}
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const char * commanalyzerLongDescription (const char * commanalyzerType) {
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if (strcmp("HP8924C", commanalyzerType) == 0) {
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return "Hewlett Packard 8924 series";
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}
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else {
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return "UNKNOWN";
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}
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}
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const char * companalyzerLongDescription (const char * companalyzerType) {
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if (strcmp("HP4191A", companalyzerType) == 0) {
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return "Hewlett Packard HP4191 series";
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}
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else {
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return "UNKNOWN";
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}
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}
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const char * funcgenLongDescription (const char * funcgenType) {
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if (strcmp("AG33250A", funcgenType) == 0) {
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return "Agilent AG33250A";
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}
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else {
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return "UNKNOWN";
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}
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}
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/* returns a device descriptor after prompting user for primary address */
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int open_gpib_device(int minor, int pad) {
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int ud;
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const int sad = 0;
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const int send_eoi = 1;
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const int eos_mode = 0;
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const int timeout = T1s;
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printf("[INFO] Trying to open GPIB device %i on board /dev/gpib%i...\n\r", pad, minor);
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ud = ibdev(minor, pad, sad, timeout, send_eoi, eos_mode);
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if(ud < 0)
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{
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printf("[WARN] GPIB interface error\n\r");
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return -1;
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}
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return ud;
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}
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int gpib_write(int ud, const char * buffer) {
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if( ibwrt(ud, buffer, strlen(buffer)) & ERR )
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{
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return -1;
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}
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return 0;
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}
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int gpib_read_array(int ud, int max_num_bytes, char * segarray) {
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int br;
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ibrd(ud, segarray, max_num_bytes-1);
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br = ThreadIbcntl();
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#ifdef ENABLE_EXTRA_DEBUGGING
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printf("[DEBG] Number of bytes read from GPIB device: %li\n", br);
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#endif
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if ((ThreadIbsta() & ERR) && (br == 0)) {
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return -1;
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}
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return br;
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}
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int gpib_read_binary(int ud, int max_num_bytes) {
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#ifdef ENABLE_EXTRA_DEBUGGING
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printf("[DEBG] Trying to read %i bytes from GPIB device...\n", max_num_bytes);
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#endif
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//ibrd(ud, scope_raw_screenshot_data, max_num_bytes-1);
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system("rm -f /tmp/current_scope_screenshot.bmp");
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ibrdf(ud, "/tmp/current_scope_screenshot.bmp");
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#ifdef ENABLE_EXTRA_DEBUGGING
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printf("[DEBG] Number of bytes read from GPIB device: %li\n", ThreadIbcntl());
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#endif
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if (ThreadIbsta() & ERR) {
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return -1;
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}
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return 0;
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}
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