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src.rivoreo.one / emulators / simh / ecf7af59d57df9518415ea0bef34fca4563c28b9 / . / sim_frontpanel.c
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/* sim_frontpanel.c: simulator frontpanel API
Copyright (c) 2015, Mark Pizzolato
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
MARK PIZZOLATO BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of Mark Pizzolato shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from Mark Pizzolato.
05-Feb-15 MP Initial implementation
01-Apr-15 MP Added register indirect, mem_examine and mem_deposit
03-Apr-15 MP Added logic to pass simulator startup messages in
panel error text if the connection to the simulator
shuts down while it is starting.
04-Apr-15 MP Added mount and dismount routines to connect and
disconnect removable media
This module provides interface between a front panel application and a simh
simulator. Facilities provide ways to gather information from and to
observe and control the state of a simulator.
The details of the 'wire protocol' are internal to the API interfaces
provided here and described in sim_frontpanel.h. These details are subject
to change from one sim_frontpanel version to the next, while all efforts
will be made to retain any prior sim_frontpanel API interfaces.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include "sim_frontpanel.h"
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <errno.h>
#include <signal.h>
#include <pthread.h>
#include "sim_sock.h"
#if defined(_WIN32)
#include <process.h>
#include <windows.h>
#define sleep(n) Sleep(n*1000)
#define msleep(n) Sleep(n)
#define strtoull _strtoui64
#define CLOCK_REALTIME 0
int clock_gettime(int clk_id, struct timespec *tp)
{
unsigned long long now, unixbase;
unixbase = 116444736;
unixbase *= 1000000000;
GetSystemTimeAsFileTime((FILETIME*)&now);
now -= unixbase;
tp->tv_sec = (long)(now/10000000);
tp->tv_nsec = (now%10000000)*100;
return 0;
}
#else /* NOT _WIN32 */
#include <unistd.h>
#define msleep(n) usleep(1000*n)
#include <sys/wait.h>
#if defined (__APPLE__)
#define HAVE_STRUCT_TIMESPEC 1 /* OSX defined the structure but doesn't tell us */
#endif
/* on HP-UX, CLOCK_REALTIME is enum, not preprocessor define */
#if !defined(CLOCK_REALTIME) && !defined(__hpux)
#define CLOCK_REALTIME 1
#define NEED_CLOCK_GETTIME 1
#if !defined(HAVE_STRUCT_TIMESPEC)
#define HAVE_STRUCT_TIMESPEC 1
#if !defined(_TIMESPEC_DEFINED)
#define _TIMESPEC_DEFINED
struct timespec {
long tv_sec;
long tv_nsec;
};
#endif /* _TIMESPEC_DEFINED */
#endif /* HAVE_STRUCT_TIMESPEC */
#if defined(NEED_CLOCK_GETTIME)
int clock_gettime(int clk_id, struct timespec *tp)
{
struct timeval cur;
struct timezone foo;
gettimeofday (&cur, &foo);
tp->tv_sec = cur.tv_sec;
tp->tv_nsec = cur.tv_usec*1000;
return 0;
}
#endif /* defined(NEED_CLOCK_GETTIME) */
#endif /* !defined(CLOCK_REALTIME) && !defined(__hpux) */
#endif /* NOT _WIN32 */
typedef struct {
char *name;
char *device_name;
void *addr;
size_t size;
int indirect;
size_t element_count;
int *bits;
size_t bit_count;
} REG;
struct PANEL {
PANEL *parent; /* Device Panels can have parent panels */
char *path; /* simulator path */
char *config;
char *device_name; /* device name */
char *temp_config;
char hostport[64];
size_t device_count;
PANEL **devices;
SOCKET sock;
size_t reg_count;
REG *regs;
char *reg_query;
int new_register;
size_t reg_query_size;
unsigned long long array_element_data;
OperationalState State;
unsigned long long simulation_time;
unsigned long long simulation_time_base;
pthread_t io_thread;
int io_thread_running;
pthread_mutex_t io_lock;
pthread_mutex_t io_send_lock;
pthread_mutex_t io_command_lock;
int command_count;
int io_reg_query_pending;
int io_waiting;
char *io_response;
size_t io_response_data;
size_t io_response_size;
pthread_cond_t io_done;
pthread_cond_t startup_done;
PANEL_DISPLAY_PCALLBACK callback;
pthread_t callback_thread;
int callback_thread_running;
void *callback_context;
int usecs_between_callbacks;
pthread_t debugflush_thread;
int debugflush_thread_running;
unsigned int sample_frequency;
unsigned int sample_dither_pct;
unsigned int sample_depth;
int debug;
char *simulator_version;
int radix;
FILE *Debug;
#if defined(_WIN32)
HANDLE hProcess;
#else
pid_t pidProcess;
#endif
};
/*
* Thread synchronization model:
*
* Mutex: Role:
* io_lock Serialize access to panel state variables
* acquired and released in application threads:
* _panel_register_query_string,
* _panel_establish_register_bits_collection,
* _panel_sendf
* acquired and released in internal threads:
* _panel_callback
* _panel_reader
* io_send_lock Serializes writes to a panel's sockets so that complete
* command/request data can be delivered before another
* thread attempts to write to the socket.
* acquired and released in: _panel_send
* io_command_lock To serialize frontpanel application command requests
* acquired and released in: _panel_get_registers, _panel_sendf
*
* Condition Var: Sync Mutex: Purpose & Duration:
* io_done io_lock
* startup_done io_lock Indicate background thread setup is complete.
* Once signaled, it is immediately destroyed.
*/
static const char *sim_prompt = "sim> ";
static const char *register_repeat_prefix = "repeat every ";
static const char *register_repeat_stop = "repeat stop";
static const char *register_repeat_stop_all = "repeat stop all";
static const char *register_repeat_units = " usecs ";
static const char *register_get_prefix = "show time";
static const char *register_collect_prefix = "collect ";
static const char *register_collect_mid1 = " samples every ";
static const char *register_collect_mid2 = " cycles dither ";
static const char *register_collect_mid3 = " percent ";
static const char *register_get_postfix = "sampleout";
static const char *register_get_start = "# REGISTERS-START";
static const char *register_get_end = "# REGISTERS-DONE";
static const char *register_repeat_start = "# REGISTERS-REPEAT-START\r";
static const char *register_repeat_end = "# REGISTERS-REPEAT-DONE";
static const char *register_dev_echo = "# REGISTERS-FOR-DEVICE:";
static const char *register_ind_echo = "# REGISTER-INDIRECT:";
static const char *command_status = "ECHO Status:%STATUS%-%TSTATUS%";
static const char *command_done_echo = "# COMMAND-DONE";
static int little_endian;
static void *_panel_reader(void *arg);
static void *_panel_callback(void *arg);
static void *_panel_debugflusher(void *arg);
static int sim_panel_set_error (PANEL *p, const char *fmt, ...);
static pthread_key_t panel_thread_id;
#define TN_IAC 0xFFu /* -1 */ /* protocol delim */
#define TN_DONT 0xFEu /* -2 */ /* dont */
#define TN_DO 0xFDu /* -3 */ /* do */
#define TN_WONT 0xFCu /* -4 */ /* wont */
#define TN_WILL 0xFBu /* -5 */ /* will */
#define TN_BIN 0 /* bin */
#define TN_ECHO 1 /* echo */
#define TN_SGA 3 /* sga */
#define TN_CR 015 /* carriage return */
#define TN_LF 012 /* line feed */
#define TN_LINE 34 /* line mode */
static unsigned char mantra[] = {
TN_IAC, TN_WILL, TN_LINE,
TN_IAC, TN_WILL, TN_SGA,
TN_IAC, TN_WILL, TN_ECHO,
TN_IAC, TN_WILL, TN_BIN,
TN_IAC, TN_DO, TN_BIN
};
static void *
_panel_malloc (size_t size)
{
void *p = malloc (size);
if (p == NULL)
sim_panel_set_error (NULL, "Out of Memory");
return p;
}
/* Allow compiler to help validate printf style format arguments */
#if !defined __GNUC__
#define GCC_FMT_ATTR(n, m)
#endif
#if !defined(GCC_FMT_ATTR)
#define GCC_FMT_ATTR(n, m) __attribute__ ((format (__printf__, n, m)))
#endif
static void __panel_debug (PANEL *p, int dbits, const char *fmt, const char *buf, int bufsize, ...) GCC_FMT_ATTR(3, 6);
#define _panel_debug(p, dbits, fmt, buf, bufsize, ...) do { if (p && p->Debug && ((dbits) & p->debug)) __panel_debug (p, dbits, fmt, buf, bufsize, ##__VA_ARGS__);} while (0)
static void __panel_vdebug (PANEL *p, int dbits, const char *fmt, const char *buf, int bufsize, va_list arglist)
{
size_t obufsize = 10240 + 9*bufsize;
while (p && p->Debug && (dbits & p->debug)) {
int i, len;
struct timespec time_now;
char timestamp[32];
char threadname[50];
char *obuf = (char *)_panel_malloc (obufsize);
clock_gettime(CLOCK_REALTIME, &time_now);
sprintf (timestamp, "%lld.%03d ", (long long)(time_now.tv_sec), (int)(time_now.tv_nsec/1000000));
sprintf (threadname, "%s:%s ", p->parent ? p->device_name : "CPU", (pthread_getspecific (panel_thread_id)) ? (char *)pthread_getspecific (panel_thread_id) : "");
obuf[obufsize - 1] = '\0';
len = vsnprintf (obuf, obufsize - 1, fmt, arglist);
if (len < 0)
return;
/* If the formatted result didn't fit into the buffer, then grow the buffer and try again */
if (len >= (int)(obufsize - 9*bufsize)) {
obufsize = len + 1 + 9*bufsize;
free (obuf);
continue;
}
for (i=0; i<bufsize; ++i) {
switch ((unsigned char)buf[i]) {
case TN_CR:
sprintf (&obuf[strlen (obuf)], "_TN_CR_");
break;
case TN_LF:
sprintf (&obuf[strlen (obuf)], "_TN_LF_");
break;
case TN_IAC:
sprintf (&obuf[strlen (obuf)], "_TN_IAC_");
switch ((unsigned char)buf[i+1]) {
case TN_IAC:
sprintf (&obuf[strlen (obuf)], "_TN_IAC_"); ++i;
break;
case TN_DONT:
sprintf (&obuf[strlen (obuf)], "_TN_DONT_"); ++i;
break;
case TN_DO:
sprintf (&obuf[strlen (obuf)], "_TN_DO_"); ++i;
break;
case TN_WONT:
sprintf (&obuf[strlen (obuf)], "_TN_WONT_"); ++i;
break;
case TN_WILL:
sprintf (&obuf[strlen (obuf)], "_TN_WILL_"); ++i;
break;
default:
sprintf (&obuf[strlen (obuf)], "_0x%02X_", (unsigned char)buf[i+1]); ++i;
break;
}
switch ((unsigned char)buf[i+1]) {
case TN_BIN:
sprintf (&obuf[strlen (obuf)], "_TN_BIN_"); ++i;
break;
case TN_ECHO:
sprintf (&obuf[strlen (obuf)], "_TN_ECHO_"); ++i;
break;
case TN_SGA:
sprintf (&obuf[strlen (obuf)], "_TN_SGA_"); ++i;
break;
case TN_LINE:
sprintf (&obuf[strlen (obuf)], "_TN_LINE_"); ++i;
break;
default:
sprintf (&obuf[strlen (obuf)], "_0x%02X_", (unsigned char)buf[i+1]); ++i;
break;
}
break;
default:
if (isprint((u_char)buf[i]))
sprintf (&obuf[strlen (obuf)], "%c", buf[i]);
else {
sprintf (&obuf[strlen (obuf)], "_");
if ((buf[i] >= 1) && (buf[i] <= 26))
sprintf (&obuf[strlen (obuf)], "^%c", 'A' + buf[i] - 1);
else
sprintf (&obuf[strlen (obuf)], "\\%03o", (u_char)buf[i]);
sprintf (&obuf[strlen (obuf)], "_");
}
break;
}
}
fprintf(p->Debug, "%s%s%s\n", timestamp, threadname, obuf);
free (obuf);
break;
}
}
static void __panel_debug (PANEL *p, int dbits, const char *fmt, const char *buf, int bufsize, ...)
{
va_list arglist;
va_start (arglist, bufsize);
__panel_vdebug (p, dbits, fmt, buf, bufsize, arglist);
va_end (arglist);
}
void
sim_panel_debug (PANEL *panel, const char *fmt, ...)
{
va_list arglist;
va_start (arglist, fmt);
__panel_vdebug (panel, DBG_APP, fmt, NULL, 0, arglist);
va_end (arglist);
}
static void *
_panel_debugflusher(void *arg)
{
PANEL *p = (PANEL*)arg;
pthread_setspecific (panel_thread_id, "debugflush");
pthread_mutex_lock (&p->io_lock);
p->debugflush_thread_running = 1;
pthread_mutex_unlock (&p->io_lock);
pthread_cond_signal (&p->startup_done); /* Signal we're ready to go */
msleep (100);
pthread_mutex_lock (&p->io_lock);
while (p->sock != INVALID_SOCKET) {
pthread_mutex_unlock (&p->io_lock);
msleep (15000);
sim_panel_flush_debug (p);
pthread_mutex_lock (&p->io_lock);
}
pthread_mutex_unlock (&p->io_lock);
pthread_mutex_lock (&p->io_lock);
pthread_setspecific (panel_thread_id, NULL);
p->debugflush_thread_running = 0;
pthread_mutex_unlock (&p->io_lock);
return NULL;
}
static void
_set_debug_file (PANEL *panel, const char *debug_file)
{
if (!panel)
return;
panel->Debug = fopen(debug_file, "w");
if (panel->Debug)
setvbuf (panel->Debug, NULL, _IOFBF, 65536);
}
void
sim_panel_set_debug_mode (PANEL *panel, int debug_bits)
{
if (panel)
panel->debug = debug_bits;
}
void
sim_panel_flush_debug (PANEL *panel)
{
if (!panel)
return;
if (panel->Debug)
fflush (panel->Debug);
}
static int
_panel_send (PANEL *p, const char *msg, int len)
{
int sent = 0;
if (p->sock == INVALID_SOCKET)
return sim_panel_set_error (p, "Invalid Socket for write");
pthread_mutex_lock (&p->io_send_lock);
while (len) {
int bsent = sim_write_sock (p->sock, msg, len);
if (bsent < 0) {
pthread_mutex_unlock (&p->io_send_lock);
return sim_panel_set_error (p, "%s", sim_get_err_sock("Error writing to socket"));
}
_panel_debug (p, DBG_XMT, "Sent %d bytes: ", msg, bsent, bsent);
len -= bsent;
msg += bsent;
sent += bsent;
}
pthread_mutex_unlock (&p->io_send_lock);
return sent;
}
static int
_panel_sendf (PANEL *p, int *completion_status, char **response, const char *fmt, ...);
static int
_panel_register_query_string (PANEL *panel, char **buf, size_t *buf_size)
{
size_t i, j, buf_data, buf_needed = 0, reg_count = 0, bit_reg_count = 0;
const char *dev;
pthread_mutex_lock (&panel->io_lock);
buf_needed = 3 +
strlen (register_get_start) + /* # REGISTERS-START */
strlen (register_get_prefix); /* SHOW TIME */
for (i=0; i<panel->reg_count; i++) {
if (panel->regs[i].bits)
++bit_reg_count;
else {
++reg_count;
buf_needed += 9 + strlen (panel->regs[i].name) + (panel->regs[i].device_name ? strlen (panel->regs[i].device_name) : 0);
if (panel->regs[i].element_count > 0)
buf_needed += 4 + 6 /* 6 digit register array index */;
if (panel->regs[i].indirect)
buf_needed += 12 + strlen (register_ind_echo) + strlen (panel->regs[i].name);
}
}
if (bit_reg_count)
buf_needed += 2 + strlen (register_get_postfix);
buf_needed += 10 + strlen (register_get_end); /* # REGISTERS-DONE */
if (buf_needed > *buf_size) {
free (*buf);
*buf = (char *)_panel_malloc (buf_needed);
if (!*buf) {
panel->State = Error;
pthread_mutex_unlock (&panel->io_lock);
return -1;
}
*buf_size = buf_needed;
}
buf_data = 0;
if (reg_count) {
sprintf (*buf + buf_data, "%s\r%s\r", register_get_start, register_get_prefix);
buf_data += strlen (*buf + buf_data);
}
dev = "";
for (i=j=0; i<panel->reg_count; i++) {
const char *reg_dev = panel->regs[i].device_name ? panel->regs[i].device_name : "";
if ((panel->regs[i].indirect) || (panel->regs[i].bits))
continue;
if (strcmp (dev, reg_dev)) {/* devices are different */
char *tbuf;
buf_needed += 4 + strlen (register_dev_echo) + strlen (reg_dev); /* # REGISTERS-for-DEVICE:XXX */
tbuf = (char *)_panel_malloc (buf_needed);
if (tbuf == NULL) {
panel->State = Error;
pthread_mutex_unlock (&panel->io_lock);
return -1;
}
strcpy (tbuf, *buf);
free (*buf);
*buf = tbuf;
sprintf (*buf + buf_data, "%s%s%s\r", (i == 0)? "" : "\r", register_dev_echo, reg_dev);
buf_data += strlen (*buf + buf_data);
dev = reg_dev;
j = 0;
*buf_size = buf_needed;
}
if (panel->regs[i].element_count == 0) {
if (j == 0)
sprintf (*buf + buf_data, "E -H %s %s", dev, panel->regs[i].name);
else
sprintf (*buf + buf_data, ",%s", panel->regs[i].name);
}
else {
if (j == 0)
sprintf (*buf + buf_data, "E -H %s %s[0:%d]", dev, panel->regs[i].name, (int)(panel->regs[i].element_count-1));
else
sprintf (*buf + buf_data, ",%s[0:%d]", panel->regs[i].name, (int)(panel->regs[i].element_count-1));
}
++j;
buf_data += strlen (*buf + buf_data);
}
if (buf_data && ((*buf)[buf_data-1] != '\r')) {
strcpy (*buf + buf_data, "\r");
buf_data += strlen (*buf + buf_data);
}
for (i=j=0; i<panel->reg_count; i++) {
const char *reg_dev = panel->regs[i].device_name ? panel->regs[i].device_name : "";
if ((!panel->regs[i].indirect) || (panel->regs[i].bits))
continue;
sprintf (*buf + buf_data, "%s%s\rE -H %s %s,$\r", register_ind_echo, panel->regs[i].name, reg_dev, panel->regs[i].name);
buf_data += strlen (*buf + buf_data);
}
if (bit_reg_count) {
strcpy (*buf + buf_data, register_get_postfix);
buf_data += strlen (*buf + buf_data);
strcpy (*buf + buf_data, "\r");
buf_data += strlen (*buf + buf_data);
}
strcpy (*buf + buf_data, register_get_end);
buf_data += strlen (*buf + buf_data);
strcpy (*buf + buf_data, "\r");
buf_data += strlen (*buf + buf_data);
*buf_size = buf_data;
pthread_mutex_unlock (&panel->io_lock);
return 0;
}
static int
_panel_establish_register_bits_collection (PANEL *panel)
{
size_t i, buf_data, buf_needed = 0, reg_count = 0, bit_reg_count = 0;
int cmd_stat, bits_count = 0;
char *buf, *response = NULL;
pthread_mutex_lock (&panel->io_lock);
for (i=0; i<panel->reg_count; i++) {
if (panel->regs[i].bits)
buf_needed += 9 + strlen (panel->regs[i].name) + (panel->regs[i].device_name ? strlen (panel->regs[i].device_name) : 0);
}
buf = (char *)_panel_malloc (buf_needed);
if (!buf) {
panel->State = Error;
pthread_mutex_unlock (&panel->io_lock);
return -1;
}
*buf = '\0';
buf_data = 0;
for (i=0; i<panel->reg_count; i++) {
if (panel->regs[i].bits) {
++bits_count;
sprintf (buf + buf_data, "%s%s", (bits_count != 1) ? "," : "", panel->regs[i].indirect ? "-I " : "");
buf_data += strlen (buf + buf_data);
if (panel->regs[i].device_name) {
sprintf (buf + buf_data, "%s ", panel->regs[i].device_name);
buf_data += strlen (buf + buf_data);
}
sprintf (buf + buf_data, "%s", panel->regs[i].name);
buf_data += strlen (buf + buf_data);
}
}
pthread_mutex_unlock (&panel->io_lock);
if (_panel_sendf (panel, &cmd_stat, &response, "%s%u%s%u%s%u%s%s\r", register_collect_prefix, panel->sample_depth,
register_collect_mid1, panel->sample_frequency,
register_collect_mid2, panel->sample_dither_pct,
register_collect_mid3, buf)) {
sim_panel_set_error (NULL, "Error establishing bit data collection:%s", response);
free (response);
free (buf);
return -1;
}
free (response);
free (buf);
return 0;
}
static PANEL **panels = NULL;
static int panel_count = 0;
static char *sim_panel_error_buf = NULL;
static size_t sim_panel_error_bufsize = 0;
static void
_panel_cleanup (void)
{
while (panel_count)
sim_panel_destroy (*panels);
}
static void
_panel_register_panel (PANEL *p)
{
if (panel_count == 0)
pthread_key_create (&panel_thread_id, free);
if (!pthread_getspecific (panel_thread_id))
pthread_setspecific (panel_thread_id, p->device_name ? p->device_name : "PanelCreator");
++panel_count;
panels = (PANEL **)realloc (panels, sizeof(*panels)*panel_count);
panels[panel_count-1] = p;
if (panel_count == 1)
atexit (&_panel_cleanup);
}
static void
_panel_deregister_panel (PANEL *p)
{
int i;
for (i=0; i<panel_count; i++) {
if (panels[i] == p) {
int j;
for (j=i+1; j<panel_count; j++)
panels[j-1] = panels[j];
--panel_count;
if (panel_count == 0) {
free (panels);
panels = NULL;
pthread_setspecific (panel_thread_id, NULL);
pthread_key_delete (panel_thread_id);
}
break;
}
}
}
static PANEL *
_sim_panel_create (const char *sim_path,
const char *sim_config,
size_t device_panel_count,
PANEL *simulator_panel,
const char *device_name,
const char *debug_file)
{
PANEL *p = NULL;
FILE *fIn = NULL;
FILE *fOut = NULL;
struct stat statb;
char *buf = NULL;
int port;
int cmd_stat;
size_t i, device_num;
char hostport[64];
union {int i; char c[sizeof (int)]; } end_test;
if (sim_panel_error_buf == NULL) { /* Preallocate an error message buffer */
sim_panel_error_bufsize = 2048;
sim_panel_error_buf = (char *) malloc (sim_panel_error_bufsize);
if (sim_panel_error_buf == NULL) {
sim_panel_error_buf = (char *)"sim_panel_set_error(): Out of Memory\n";
sim_panel_error_bufsize = 0;
return NULL;
}
}
if (simulator_panel) {
for (device_num=0; device_num < simulator_panel->device_count; ++device_num)
if (simulator_panel->devices[device_num] == NULL)
break;
if (device_num == simulator_panel->device_count) {
sim_panel_set_error (NULL, "No free panel devices slots available %s simulator. All %d slots are used.", simulator_panel->path, (int)simulator_panel->device_count);
return NULL;
}
p = (PANEL *)_panel_malloc (sizeof(*p));
if (p == NULL)
goto Error_Return;
memset (p, 0, sizeof(*p));
_panel_register_panel (p);
p->device_name = (char *)_panel_malloc (1 + strlen (device_name));
if (p->device_name == NULL)
goto Error_Return;
strcpy (p->device_name, device_name);
p->parent = simulator_panel;
p->Debug = p->parent->Debug;
strcpy (p->hostport, simulator_panel->hostport);
p->sock = INVALID_SOCKET;
}
else {
end_test.i = 1; /* test endian-ness */
little_endian = (end_test.c[0] != 0);
sim_init_sock ();
for (port=1024; port < 2048; port++) {
SOCKET sock;
sprintf (hostport, "%d", port);
sock = sim_connect_sock_ex (NULL, hostport, NULL, NULL, SIM_SOCK_OPT_NODELAY | SIM_SOCK_OPT_BLOCKING);
if (sock != INVALID_SOCKET) {
int sta = 0;
while (!sta) {
msleep (10);
sta = sim_check_conn (sock, 1);
}
sim_close_sock (sock);
if (sta == -1)
break;
}
else
break;
}
if (stat (sim_config, &statb) < 0) {
sim_panel_set_error (NULL, "Can't stat simulator configuration '%s': %s", sim_config, strerror(errno));
goto Error_Return;
}
buf = (char *)_panel_malloc (statb.st_size+1);
if (buf == NULL)
goto Error_Return;
buf[statb.st_size] = '\0';
p = (PANEL *)_panel_malloc (sizeof(*p));
if (p == NULL)
goto Error_Return;
memset (p, 0, sizeof(*p));
_panel_register_panel (p);
p->sock = INVALID_SOCKET;
p->path = (char *)_panel_malloc (strlen (sim_path) + 1);
if (p->path == NULL)
goto Error_Return;
strcpy (p->path, sim_path);
p->config = (char *)_panel_malloc (strlen (sim_config) + 1);
if (p->config == NULL)
goto Error_Return;
strcpy (p->config, sim_config);
fIn = fopen (sim_config, "r");
if (fIn == NULL) {
sim_panel_set_error (NULL, "Can't open configuration file '%s': %s", sim_config, strerror(errno));
goto Error_Return;
}
p->temp_config = (char *)_panel_malloc (strlen (sim_config) + 40);
if (p->temp_config == NULL)
goto Error_Return;
sprintf (p->temp_config, "%s-Panel-%d", sim_config, getpid());
fOut = fopen (p->temp_config, "w");
if (fOut == NULL) {
sim_panel_set_error (NULL, "Can't create temporary configuration file '%s': %s", p->temp_config, strerror(errno));
goto Error_Return;
}
fprintf (fOut, "# Temporary FrontPanel generated simh configuration file\n");
fprintf (fOut, "# Original Configuration File: %s\n", p->config);
fprintf (fOut, "# Simulator Path: %s\n", sim_path);
while (fgets (buf, statb.st_size, fIn))
fputs (buf, fOut);
free (buf);
buf = NULL;
fclose (fIn);
fIn = NULL;
fprintf (fOut, "set remote notelnet\n");
if (device_panel_count)
fprintf (fOut, "set remote connections=%d\n", (int)device_panel_count+1);
fprintf (fOut, "set remote -u telnet=%s\n", hostport);
fprintf (fOut, "set remote master\n");
fprintf (fOut, "exit\n");
fclose (fOut);
fOut = NULL;
}
if (debug_file) {
_set_debug_file (p, debug_file);
sim_panel_set_debug_mode (p, DBG_XMT|DBG_RCV);
_panel_debug (p, DBG_XMT|DBG_RCV, "Creating Simulator Process %s\n", NULL, 0, sim_path);
if (stat (p->temp_config, &statb) < 0) {
sim_panel_set_error (NULL, "Can't stat temporary simulator configuration '%s': %s", p->temp_config, strerror(errno));
goto Error_Return;
}
buf = (char *)_panel_malloc (statb.st_size+1);
if (buf == NULL)
goto Error_Return;
buf[statb.st_size] = '\0';
fIn = fopen (p->temp_config, "r");
if (fIn == NULL) {
sim_panel_set_error (NULL, "Can't open temporary configuration file '%s': %s", p->temp_config, strerror(errno));
goto Error_Return;
}
_panel_debug (p, DBG_XMT|DBG_RCV, "Using Temporary Configuration File '%s' containing:", NULL, 0, p->temp_config);
i = 0;
while (fgets (buf, statb.st_size, fIn)) {
++i;
buf[strlen(buf) - 1] = '\0';
_panel_debug (p, DBG_XMT|DBG_RCV, "Line %2d: %s", NULL, 0, (int)i, buf);
}
free (buf);
buf = NULL;
fclose (fIn);
fIn = NULL;
}
if (!simulator_panel) {
#if defined(_WIN32)
char cmd[2048];
PROCESS_INFORMATION ProcessInfo;
STARTUPINFO StartupInfo;
sprintf(cmd, "%s%s%s %s%s%s", strchr (sim_path, ' ') ? "\"" : "", sim_path, strchr (sim_path, ' ') ? "\"" : "", strchr (p->temp_config, ' ') ? "\"" : "", p->temp_config, strchr (p->temp_config, ' ') ? "\"" : "");
memset (&ProcessInfo, 0, sizeof(ProcessInfo));
memset (&StartupInfo, 0, sizeof(StartupInfo));
StartupInfo.dwFlags = STARTF_USESTDHANDLES;
StartupInfo.hStdInput = INVALID_HANDLE_VALUE;
StartupInfo.hStdOutput = INVALID_HANDLE_VALUE;
StartupInfo.hStdError = INVALID_HANDLE_VALUE;
if (CreateProcessA(NULL, cmd, NULL, NULL, FALSE, CREATE_NO_WINDOW, NULL, NULL, &StartupInfo, &ProcessInfo)) {
CloseHandle (ProcessInfo.hThread);
p->hProcess = ProcessInfo.hProcess;
}
else { /* Creation Problem */
sim_panel_set_error (NULL, "CreateProcess Error: %d", GetLastError());
goto Error_Return;
}
#else
p->pidProcess = fork();
if (p->pidProcess == 0) {
close (0); close (1); close (2); /* make sure not to pass the open standard handles */
dup (dup (open ("/dev/null", O_RDWR))); /* open standard handles to /dev/null */
if (execlp (sim_path, sim_path, p->temp_config, NULL, NULL)) {
perror ("execl");
exit(errno);
}
}
if (p->pidProcess < 0) {
p->pidProcess = 0;
sim_panel_set_error (NULL, "fork() Error: %s", strerror(errno));
goto Error_Return;
}
#endif
strcpy (p->hostport, hostport);
}
for (i=0; i<100; i++) { /* Allow up to 10 seconds waiting for simulator to start up */
p->sock = sim_connect_sock_ex (NULL, p->hostport, NULL, NULL, SIM_SOCK_OPT_NODELAY | SIM_SOCK_OPT_BLOCKING);
if (p->sock == INVALID_SOCKET)
msleep (100);
else
break;
}
if (p->sock == INVALID_SOCKET) {
if (simulator_panel) {
sim_panel_set_error (NULL, "Can't connect to simulator Remote Console on port %s", p->hostport);
}
else {
if (stat (sim_path, &statb) < 0)
sim_panel_set_error (NULL, "Can't stat simulator '%s': %s", sim_path, strerror(errno));
else
sim_panel_set_error (NULL, "Can't connect to the %s simulator Remote Console on port %s, the simulator process may not have started or the simulator binary can't be found", sim_path, p->hostport);
}
goto Error_Return;
}
_panel_debug (p, DBG_XMT|DBG_RCV, "Connected to simulator on %s after %dms", NULL, 0, p->hostport, (int)i*100);
pthread_mutex_init (&p->io_lock, NULL);
pthread_mutex_init (&p->io_send_lock, NULL);
pthread_mutex_init (&p->io_command_lock, NULL);
pthread_cond_init (&p->io_done, NULL);
pthread_cond_init (&p->startup_done, NULL);
if (sizeof(mantra) != _panel_send (p, (char *)mantra, sizeof(mantra))) {
sim_panel_set_error (NULL, "Error sending Telnet mantra (options): %s", sim_get_err_sock ("send"));
goto Error_Return;
}
if (1) {
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
pthread_mutex_lock (&p->io_lock);
p->io_thread_running = 0;
pthread_create (&p->io_thread, &attr, _panel_reader, (void *)p);
while (!p->io_thread_running)
pthread_cond_wait (&p->startup_done, &p->io_lock); /* Wait for thread to stabilize */
if ((p->Debug) && (p->parent == NULL)) {
p->debugflush_thread_running = 0;
pthread_create (&p->debugflush_thread, &attr, _panel_debugflusher, (void *)p);
while (!p->debugflush_thread_running)
pthread_cond_wait (&p->startup_done, &p->io_lock); /* Wait for thread to stabilize */
}
pthread_mutex_unlock (&p->io_lock);
pthread_attr_destroy(&attr);
pthread_cond_destroy (&p->startup_done);
}
if (simulator_panel) {
simulator_panel->devices[device_num] = p;
}
else {
if (device_panel_count) {
p->devices = (PANEL **)_panel_malloc (device_panel_count*sizeof(*p->devices));
if (p->devices == NULL)
goto Error_Return;
memset (p->devices, 0, device_panel_count*sizeof(*p->devices));
p->device_count = device_panel_count;
}
if (p->State == Error)
goto Error_Return;
/* Validate sim_frontpanel API version */
if (_panel_sendf (p, &cmd_stat, &p->simulator_version, "SHOW VERSION\r"))
goto Error_Return;
if (1) {
int api_version = 0;
char *c = strstr (p->simulator_version, "FrontPanel API Version");
if ((!c) ||
(1 != sscanf (c, "FrontPanel API Version %d", &api_version)) ||
(api_version != SIM_FRONTPANEL_VERSION)) {
sim_panel_set_error (NULL, "Inconsistent sim_frontpanel API version %d in simulator. Version %d needed.-", api_version, SIM_FRONTPANEL_VERSION);
goto Error_Return;
}
}
if (1) {
char *radix = NULL;
if (_panel_sendf (p, &cmd_stat, &radix, "SHOW %s RADIX\r", p->device_name ? p->device_name : "")) {
free (radix);
goto Error_Return;
}
sscanf (radix, "Radix=%d", &p->radix);
free (radix);
if ((p->radix != 16) && (p->radix != 8)) {
sim_panel_set_error (NULL, "Unsupported Radix: %d%s%s.", p->radix, p->device_name ? " on device " : "", p->device_name ? p->device_name : "");
goto Error_Return;
}
}
}
return p;
Error_Return:
if (fIn)
fclose (fIn);
if (fOut) {
fclose (fOut);
remove (p->temp_config);
}
if (buf)
free (buf);
if (1) {
const char *err = sim_panel_get_error();
char *errbuf = (char *)_panel_malloc (1 + strlen (err));
strcpy (errbuf, err); /* preserve error info while closing */
sim_panel_destroy (p);
sim_panel_set_error (NULL, "%s", errbuf);
free (errbuf);
}
if (!simulator_panel)
sim_cleanup_sock();
return NULL;
}
PANEL *
sim_panel_start_simulator_debug (const char *sim_path,
const char *sim_config,
size_t device_panel_count,
const char *debug_file)
{
return _sim_panel_create (sim_path, sim_config, device_panel_count, NULL, NULL, debug_file);
}
PANEL *
sim_panel_start_simulator (const char *sim_path,
const char *sim_config,
size_t device_panel_count)
{
return sim_panel_start_simulator_debug (sim_path, sim_config, device_panel_count, NULL);
}
PANEL *
sim_panel_add_device_panel_debug (PANEL *simulator_panel,
const char *device_name,
const char *debug_file)
{
return _sim_panel_create (NULL, NULL, 0, simulator_panel, device_name, debug_file);
}
PANEL *
sim_panel_add_device_panel (PANEL *simulator_panel,
const char *device_name)
{
return sim_panel_add_device_panel_debug (simulator_panel, device_name, NULL);
}
int
sim_panel_destroy (PANEL *panel)
{
REG *reg;
if (panel) {
_panel_debug (panel, DBG_XMT|DBG_RCV, "Closing Panel %s", NULL, 0, panel->device_name? panel->device_name : panel->path);
if (panel->devices) {
size_t i;
for (i=0; i<panel->device_count; i++) {
if (panel->devices[i]) {
sim_panel_destroy (panel->devices[i]);
panel->devices[i] = NULL;
}
}
free (panel->devices);
panel->devices = NULL;
}
if (panel->sock != INVALID_SOCKET) {
SOCKET sock = panel->sock;
int wait_count;
/* First, wind down the automatic register queries */
sim_panel_set_display_callback_interval (panel, NULL, NULL, 0);
/* Next, attempt a simulator shutdown only with the master panel */
if (panel->parent == NULL) {
if (panel->State == Run) {
int i;
_panel_send (panel, "\005\r", 2);
for (i=0; (panel->State == Run) && (i < 10); i++)
msleep(100);
if (panel->State == Run)
_panel_debug (panel, DBG_THR, "Unable to HALT running simulator for shutdown", NULL, 0);
}
_panel_send (panel, "EXIT\r", 5);
}
/* Wait for up to 2 seconds for a graceful shutdown */
panel->sock = INVALID_SOCKET;
for (wait_count=0; panel->io_thread_running && (wait_count<20); ++wait_count)
msleep (100);
/* Now close the socket which should stop a pending read that hasn't completed */
sim_close_sock (sock);
pthread_join (panel->io_thread, NULL);
}
if ((panel->Debug) && (panel->parent == NULL))
pthread_join (panel->debugflush_thread, NULL);
pthread_mutex_destroy (&panel->io_lock);
pthread_mutex_destroy (&panel->io_send_lock);
pthread_mutex_destroy (&panel->io_command_lock);
pthread_cond_destroy (&panel->io_done);
#if defined(_WIN32)
if (panel->hProcess) {
TerminateProcess (panel->hProcess, 0);
WaitForSingleObject (panel->hProcess, INFINITE);
CloseHandle (panel->hProcess);
}
#else
if (panel->pidProcess) {
int status;
if (!kill (panel->pidProcess, 0)) {
kill (panel->pidProcess, SIGTERM);
msleep (200);
if (!kill (panel->pidProcess, 0))
kill (panel->pidProcess, SIGKILL);
}
waitpid (panel->pidProcess, &status, 0);
}
#endif
free (panel->path);
free (panel->device_name);
free (panel->config);
if (panel->temp_config)
remove (panel->temp_config);
free (panel->temp_config);
reg = panel->regs;
while (panel->reg_count--) {
free (reg->name);
free (reg->device_name);
reg++;
}
free (panel->regs);
free (panel->reg_query);
free (panel->io_response);
free (panel->simulator_version);
if ((panel->Debug) && (!panel->parent))
fclose (panel->Debug);
if (!panel->parent)
sim_cleanup_sock ();
_panel_deregister_panel (panel);
free (panel);
}
return 0;
}
OperationalState
sim_panel_get_state (PANEL *panel)
{
if (!panel)
return Halt;
return panel->State;
}
static int
_panel_add_register (PANEL *panel,
const char *name,
const char *device_name,
size_t size,
void *addr,
int indirect,
size_t element_count,
int *bits,
size_t bit_count)
{
REG *regs, *reg;
char *response = NULL, *c;
unsigned long long data;
size_t i;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if ((bit_count != 0) && (panel->sample_depth == 0)) {
sim_panel_set_error (NULL, "sim_panel_set_sampling_parameters() must be called first");
return -1;
}
regs = (REG *)_panel_malloc ((1 + panel->reg_count)*sizeof(*regs));
if (regs == NULL)
return sim_panel_set_error (panel, "_panel_add_register(): Out of Memory\n");
pthread_mutex_lock (&panel->io_lock);
memcpy (regs, panel->regs, panel->reg_count*sizeof(*regs));
reg = &regs[panel->reg_count];
memset (reg, 0, sizeof(*regs));
reg->name = (char *)_panel_malloc (1 + strlen (name));
if (reg->name == NULL) {
panel->State = Error;
pthread_mutex_unlock (&panel->io_lock);
sim_panel_set_error (NULL, "_panel_add_register(): Out of Memory\n");
free (regs);
return -1;
}
strcpy (reg->name, name);
reg->indirect = indirect;
reg->addr = addr;
reg->size = size;
reg->element_count = element_count;
reg->bits = bits;
reg->bit_count = bit_count;
for (i=0; i<strlen (reg->name); i++) {
if (islower (reg->name[i]))
reg->name[i] = toupper (reg->name[i]);
}
if (device_name) {
reg->device_name = (char *)_panel_malloc (1 + strlen (device_name));
if (reg->device_name == NULL) {
free (reg->name);
free (regs);
pthread_mutex_unlock (&panel->io_lock);
return sim_panel_set_error (panel, "_panel_add_register(): Out of Memory\n");
}
strcpy (reg->device_name, device_name);
for (i=0; i<strlen (reg->device_name); i++) {
if (islower (reg->device_name[i]))
reg->device_name[i] = toupper (reg->device_name[i]);
}
}
for (i=0; i<panel->reg_count; i++) {
char *t1 = (char *)_panel_malloc (2 + strlen (regs[i].name) + (regs[i].device_name? strlen (regs[i].device_name) : 0));
char *t2 = (char *)_panel_malloc (2 + strlen (reg->name) + (reg->device_name? strlen (reg->device_name) : 0));
if ((t1 == NULL) || (t2 == NULL)) {
free (t1);
free (t2);
free (reg->name);
free (reg->device_name);
panel->State = Error;
free (regs);
pthread_mutex_unlock (&panel->io_lock);
return sim_panel_set_error (NULL, "_panel_add_register(): Out of Memory\n");
}
sprintf (t1, "%s %s", regs[i].device_name ? regs[i].device_name : "", regs[i].name);
sprintf (t2, "%s %s", reg->device_name ? reg->device_name : "", reg->name);
if ((!strcmp (t1, t2)) &&
(reg->indirect == regs[i].indirect) &&
((reg->bits == NULL) == (regs[i].bits == NULL))) {
pthread_mutex_unlock (&panel->io_lock);
sim_panel_set_error (NULL, "Duplicate Register Declaration");
free (t1);
free (t2);
free (reg->name);
free (reg->device_name);
free (regs);
return -1;
}
free (t1);
free (t2);
}
pthread_mutex_unlock (&panel->io_lock);
/* Validate existence of requested register/array */
if (_panel_sendf (panel, &cmd_stat, &response, "EXAMINE -H %s %s%s\r", device_name? device_name : "", name, (element_count > 0) ? "[0]" : "")) {
free (reg->name);
free (reg->device_name);
free (regs);
return -1;
}
c = strchr (response, ':');
if ((!strcmp ("Invalid argument\r\n", response)) || (!c)) {
sim_panel_set_error (NULL, "Invalid Register: %s %s", device_name? device_name : "", name);
free (response);
free (reg->name);
free (reg->device_name);
free (regs);
return -1;
}
data = strtoull (c + 1, NULL, 16);
free (response);
if (element_count > 0) {
if (_panel_sendf (panel, &cmd_stat, &response, "EXAMINE %s %s[%d]\r", device_name? device_name : "", name, element_count-1)) {
free (reg->name);
free (reg->device_name);
free (regs);
return -1;
}
if (!strcmp ("Subscript out of range\r\n", response)) {
sim_panel_set_error (NULL, "Invalid Register Array Dimension: %s %s[%d]", device_name? device_name : "", name, element_count-1);
free (response);
free (reg->name);
free (reg->device_name);
free (regs);
return -1;
}
free (response);
}
pthread_mutex_lock (&panel->io_lock);
++panel->reg_count;
free (panel->regs);
panel->regs = regs;
panel->new_register = 1;
pthread_mutex_unlock (&panel->io_lock);
/* Now build the register query string for the whole register list */
if (_panel_register_query_string (panel, &panel->reg_query, &panel->reg_query_size))
return -1;
if (bits) {
for (i=0; i<bit_count; i++)
bits[i] = (data & (1LL<<i)) ? panel->sample_depth : 0;
if (_panel_establish_register_bits_collection (panel))
return -1;
}
return 0;
}
int
sim_panel_add_register (PANEL *panel,
const char *name,
const char *device_name,
size_t size,
void *addr)
{
return _panel_add_register (panel, name, device_name, size, addr, 0, 0, NULL, 0);
}
int
sim_panel_add_register_bits (PANEL *panel,
const char *name,
const char *device_name,
size_t bit_width,
int *bits)
{
return _panel_add_register (panel, name, device_name, 0, NULL, 0, 0, bits, bit_width);
}
int
sim_panel_add_register_array (PANEL *panel,
const char *name,
const char *device_name,
size_t element_count,
size_t size,
void *addr)
{
return _panel_add_register (panel, name, device_name, size, addr, 0, element_count, NULL, 0);
}
int
sim_panel_add_register_indirect (PANEL *panel,
const char *name,
const char *device_name,
size_t size,
void *addr)
{
return _panel_add_register (panel, name, device_name, size, addr, 1, 0, NULL, 0);
}
int
sim_panel_add_register_indirect_bits (PANEL *panel,
const char *name,
const char *device_name,
size_t bit_width,
int *bits)
{
return _panel_add_register (panel, name, device_name, 0, NULL, 1, 0, bits, bit_width);
}
static int
_panel_get_registers (PANEL *panel, int calledback, unsigned long long *simulation_time)
{
if ((!panel) || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if ((!calledback) && (panel->callback)) {
sim_panel_set_error (NULL, "Callback provides register data");
return -1;
}
if (!panel->reg_count) {
sim_panel_set_error (NULL, "No registers specified");
return -1;
}
pthread_mutex_lock (&panel->io_command_lock);
pthread_mutex_lock (&panel->io_lock);
if (panel->reg_query_size != _panel_send (panel, panel->reg_query, panel->reg_query_size)) {
pthread_mutex_unlock (&panel->io_lock);
pthread_mutex_unlock (&panel->io_command_lock);
return -1;
}
while (panel->io_reg_query_pending != 0) {
pthread_mutex_unlock (&panel->io_lock);
msleep (100);
pthread_mutex_lock (&panel->io_lock);
}
++panel->io_reg_query_pending;
panel->io_waiting = 1;
while (panel->io_waiting)
pthread_cond_wait (&panel->io_done, &panel->io_lock);
if (simulation_time)
*simulation_time = panel->simulation_time;
pthread_mutex_unlock (&panel->io_lock);
pthread_mutex_unlock (&panel->io_command_lock);
return 0;
}
int
sim_panel_get_registers (PANEL *panel, unsigned long long *simulation_time)
{
return _panel_get_registers (panel, 0, simulation_time);
}
int
sim_panel_set_display_callback_interval (PANEL *panel,
PANEL_DISPLAY_PCALLBACK callback,
void *context,
int usecs_between_callbacks)
{
if (!panel) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
pthread_mutex_lock (&panel->io_lock); /* acquire access */
panel->callback = callback;
panel->callback_context = context;
if (usecs_between_callbacks && (0 == panel->usecs_between_callbacks)) { /* Need to start/enable callbacks */
pthread_attr_t attr;
_panel_debug (panel, DBG_THR, "Starting callback thread, Interval: %d usecs", NULL, 0, usecs_between_callbacks);
panel->usecs_between_callbacks = usecs_between_callbacks;
pthread_cond_init (&panel->startup_done, NULL);
pthread_attr_init(&attr);
pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
pthread_create (&panel->callback_thread, &attr, _panel_callback, (void *)panel);
pthread_attr_destroy(&attr);
while (!panel->callback_thread_running)
pthread_cond_wait (&panel->startup_done, &panel->io_lock); /* Wait for thread to stabilize */
pthread_cond_destroy (&panel->startup_done);
}
if ((usecs_between_callbacks == 0) && panel->usecs_between_callbacks) { /* Need to stop callbacks */
_panel_debug (panel, DBG_THR, "Shutting down callback thread", NULL, 0);
panel->usecs_between_callbacks = 0; /* flag disabled */
pthread_mutex_unlock (&panel->io_lock); /* allow access */
pthread_join (panel->callback_thread, NULL); /* synchronize with thread rundown */
pthread_mutex_lock (&panel->io_lock); /* reacquire access */
}
pthread_mutex_unlock (&panel->io_lock);
return 0;
}
int
sim_panel_set_sampling_parameters_ex (PANEL *panel,
unsigned int sample_frequency,
unsigned int sample_dither_pct,
unsigned int sample_depth)
{
if (sample_frequency == 0) {
sim_panel_set_error (NULL, "Invalid sample frequency value: %u", sample_frequency);
return -1;
}
if (sample_dither_pct > 25) {
sim_panel_set_error (NULL, "Invalid sample dither percentage value: %u", sample_dither_pct);
return -1;
}
if (sample_depth == 0) {
sim_panel_set_error (NULL, "Invalid sample depth value: %u", sample_depth);
return -1;
}
panel->sample_frequency = sample_frequency;
panel->sample_dither_pct = sample_dither_pct;
panel->sample_depth = sample_depth;
return 0;
}
int
sim_panel_set_sampling_parameters (PANEL *panel,
unsigned int sample_frequency,
unsigned int sample_depth)
{
return sim_panel_set_sampling_parameters_ex (panel,
sample_frequency,
5,
sample_depth);
}
int
sim_panel_exec_halt (PANEL *panel)
{
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't HALT simulator from device front panel");
return -1;
}
if (panel->State == Run) {
if (1 != _panel_send (panel, "\005", 1))
return -1;
}
return 0;
}
int
sim_panel_exec_boot (PANEL *panel, const char *device)
{
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't BOOT simulator from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
/* A BOOT or RUN command will restart the simulator's time base. */
/* We account for that so that the frontpanel application sees ever */
/* increasing time values when register data is delivered. */
if (_panel_sendf (panel, &cmd_stat, NULL, "SHOW TIME\r"))
return -1;
panel->simulation_time_base += panel->simulation_time;
if (_panel_sendf (panel, NULL, NULL, "BOOT %s\r", device))
return -1;
msleep (100); /* Allow Run/Hslt state to settle */
return 0;
}
int
sim_panel_exec_start (PANEL *panel)
{
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't RUN simulator from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
/* A BOOT or RUN command will restart the simulator's time base. */
/* We account for that so that the frontpanel application sees ever */
/* increasing time values when register data is delivered. */
if (_panel_sendf (panel, &cmd_stat, NULL, "SHOW TIME\r"))
return -1;
panel->simulation_time_base += panel->simulation_time;
if (_panel_sendf (panel, NULL, NULL, "RUN -Q\r", 5))
return -1;
msleep (100); /* Allow Run/Hslt state to settle */
return 0;
}
int
sim_panel_exec_run (PANEL *panel)
{
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't CONT simulator from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (_panel_sendf (panel, NULL, NULL, "CONT\r", 5))
return -1;
msleep (100); /* Allow Run/Hslt state to settle */
return 0;
}
int
sim_panel_exec_step (PANEL *panel)
{
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't STEP simulator from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (5 != _panel_send (panel, "STEP\r", 5))
return -1;
return 0;
}
int
sim_panel_break_set (PANEL *panel, const char *condition)
{
char *response = NULL;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't establish a breakpoint from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if ((_panel_sendf (panel, &cmd_stat, &response, "BREAK %s\r", condition)) ||
(*response)) {
sim_panel_set_error (NULL, "Error establishing breakpoint at '%s': %s", condition, response ? response : "");
free (response);
return -1;
}
free (response);
return 0;
}
int
sim_panel_break_clear (PANEL *panel, const char *condition)
{
char *response = NULL;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't clear a breakpoint from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if ((_panel_sendf (panel, &cmd_stat, &response, "NOBREAK %s\r", condition)) ||
(*response)) {
sim_panel_set_error (NULL, "Error clearing breakpoint at '%s': %s", condition, response ? response : "");
free (response);
return -1;
}
free (response);
return 0;
}
int
sim_panel_break_output_set (PANEL *panel, const char *condition)
{
char *response = NULL;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't establish an output breakpoint from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if ((_panel_sendf (panel, &cmd_stat, &response, "EXPECT %s\r", condition)) ||
(*response)) {
sim_panel_set_error (NULL, "Error establishing output breakpoint for '%s': %s", condition, response ? response : "");
free (response);
return -1;
}
free (response);
return 0;
}
int
sim_panel_break_output_clear (PANEL *panel, const char *condition)
{
char *response = NULL;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->parent) {
sim_panel_set_error (NULL, "Can't clear an output breakpoint from device front panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if ((_panel_sendf (panel, &cmd_stat, &response, "NOEXPECT %s\r", condition)) ||
(*response)) {
sim_panel_set_error (NULL, "Error clearing output breakpoint for '%s': %s", condition, response ? response : "");
free (response);
return -1;
}
free (response);
return 0;
}
/**
sim_panel_gen_examine
name_or_addr the name the simulator knows this register by
size the size (in local storage) of the buffer which will
receive the data returned when examining the simulator
value a pointer to the buffer which will be loaded with the
data returned when examining the simulator
*/
int
sim_panel_gen_examine (PANEL *panel,
const char *name_or_addr,
size_t size,
void *value)
{
char *response = NULL, *c;
unsigned long long data = 0;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (_panel_sendf (panel, &cmd_stat, &response, "EXAMINE -H %s", name_or_addr)) {
free (response);
return -1;
}
c = strchr (response, ':');
if (!c) {
sim_panel_set_error (NULL, "response: %s", response);
free (response);
return -1;
}
data = strtoull (c + 1, NULL, 16);
if (little_endian)
memcpy (value, &data, size);
else
memcpy (value, ((char *)&data) + sizeof(data)-size, size);
free (response);
return 0;
}
/**
sim_panel_gen_deposit
name_or_addr the name the simulator knows this register by
size the size (in local storage) of the buffer which
contains the data to be deposited into the simulator
value a pointer to the buffer which contains the data to
be deposited into the simulator
*/
int
sim_panel_gen_deposit (PANEL *panel,
const char *name_or_addr,
size_t size,
const void *value)
{
unsigned long long data = 0;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (little_endian)
memcpy (&data, value, size);
else
memcpy (((char *)&data) + sizeof(data)-size, value, size);
if (_panel_sendf (panel, &cmd_stat, NULL, "DEPOSIT -H %s %llx", name_or_addr, data))
return -1;
return 0;
}
/**
sim_panel_mem_examine
addr_size the size (in local storage) of the buffer which
contains the memory address of the data to be examined
in the simulator
addr a pointer to the buffer containing the memory address
of the data to be examined in the simulator
value_size the size (in local storage) of the buffer which will
receive the data returned when examining the simulator
value a pointer to the buffer which will be loaded with the
data returned when examining the simulator
*/
int
sim_panel_mem_examine (PANEL *panel,
size_t addr_size,
const void *addr,
size_t value_size,
void *value)
{
char *response = NULL, *c;
unsigned long long data = 0, address = 0;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (little_endian)
memcpy (&address, addr, addr_size);
else
memcpy (((char *)&address) + sizeof(address)-addr_size, addr, addr_size);
if (_panel_sendf (panel, &cmd_stat, &response, (panel->radix == 16) ? "EXAMINE -H %llx" : "EXAMINE -H %llo", address)) {
free (response);
return -1;
}
c = strchr (response, ':');
if (!c) {
sim_panel_set_error (NULL, "%s", response);
free (response);
return -1;
}
data = strtoull (c + 1, NULL, 16);
if (little_endian)
memcpy (value, &data, value_size);
else
memcpy (value, ((char *)&data) + sizeof(data)-value_size, value_size);
free (response);
return 0;
}
/**
sim_panel_mem_deposit
addr_size the size (in local storage) of the buffer which
contains the memory address of the data to be deposited
into the simulator
addr a pointer to the buffer containing the memory address
of the data to be deposited into the simulator
value_size the size (in local storage) of the buffer which will
contains the data to be deposited into the simulator
value a pointer to the buffer which contains the data to be
deposited into the simulator
*/
int
sim_panel_mem_deposit (PANEL *panel,
size_t addr_size,
const void *addr,
size_t value_size,
const void *value)
{
unsigned long long data = 0, address = 0;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (little_endian) {
memcpy (&data, value, value_size);
memcpy (&address, addr, addr_size);
}
else {
memcpy (((char *)&data) + sizeof(data)-value_size, value, value_size);
memcpy (((char *)&address) + sizeof(address)-addr_size, addr, addr_size);
}
if (_panel_sendf (panel, &cmd_stat, NULL, (panel->radix == 16) ? "DEPOSIT -H %llx %llx" : "DEPOSIT -H %llo %llx", address, data))
return -1;
return 0;
}
/**
sim_panel_mem_deposit_instruction
addr_size the size (in local storage) of the buffer which
contains the memory address of the data to be deposited
into the simulator
addr a pointer to the buffer containing the memory address
of the data to be deposited into the simulator
instruction a pointer to the buffer that contains the mnemonic
instruction to be deposited at the indicated address
*/
int
sim_panel_mem_deposit_instruction (PANEL *panel,
size_t addr_size,
const void *addr,
const char *instruction)
{
unsigned long long address = 0;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (little_endian)
memcpy (&address, addr, addr_size);
else
memcpy (((char *)&address) + sizeof(address)-addr_size, addr, addr_size);
if (_panel_sendf (panel, &cmd_stat, NULL, (panel->radix == 16) ? "DEPOSIT -H %llx %s" : "DEPOSIT -H %llo %s", address, instruction))
return -1;
return 0;
}
/**
sim_panel_set_register_value
name the name of a simulator register or a memory address
which is to receive a new value
value the new value in character string form. The string
must be in the native/natural radix that the simulator
uses when referencing that register
*/
int
sim_panel_set_register_value (PANEL *panel,
const char *name,
const char *value)
{
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
if (panel->State == Run) {
sim_panel_set_error (NULL, "Not Halted");
return -1;
}
if (_panel_sendf (panel, &cmd_stat, NULL, "DEPOSIT %s %s", name, value))
return -1;
return 0;
}
/**
sim_panel_mount
device the name of a simulator device/unit
switches any switches appropriate for the desire attach
path the path on the local system to be attached
*/
int
sim_panel_mount (PANEL *panel,
const char *device,
const char *switches,
const char *path)
{
char *response = NULL;
OperationalState OrigState;
int stat = 0;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
pthread_mutex_lock (&panel->io_lock);
OrigState = panel->State;
if (OrigState == Run) {
sim_panel_exec_halt (panel);
while (panel->State == Run) {
pthread_mutex_unlock (&panel->io_lock);
msleep (100);
pthread_mutex_lock (&panel->io_lock);
}
}
pthread_mutex_unlock (&panel->io_lock);
do {
if (_panel_sendf (panel, &cmd_stat, &response, "ATTACH %s %s %s", switches, device, path)) {
stat = -1;
break;
}
if (cmd_stat) {
sim_panel_set_error (NULL, response);
stat = -1;
}
} while (0);
pthread_mutex_lock (&panel->io_lock);
if (OrigState == Run)
sim_panel_exec_run (panel);
pthread_mutex_unlock (&panel->io_lock);
free (response);
return stat;
}
/**
sim_panel_dismount
device the name of a simulator device/unit
*/
int
sim_panel_dismount (PANEL *panel,
const char *device)
{
char *response = NULL;
OperationalState OrigState;
int stat = 0;
int cmd_stat;
if (!panel || (panel->State == Error)) {
sim_panel_set_error (NULL, "Invalid Panel");
return -1;
}
pthread_mutex_lock (&panel->io_lock);
OrigState = panel->State;
if (OrigState == Run) {
sim_panel_exec_halt (panel);
while (panel->State == Run) {
pthread_mutex_unlock (&panel->io_lock);
msleep (100);
pthread_mutex_lock (&panel->io_lock);
}
}
pthread_mutex_unlock (&panel->io_lock);
do {
if (_panel_sendf (panel, &cmd_stat, &response, "DETACH %s", device)) {
stat = -1;
break;
}
if (cmd_stat) {
sim_panel_set_error (NULL, "%s", response);
stat = -1;
}
} while (0);
pthread_mutex_lock (&panel->io_lock);
if (OrigState == Run)
sim_panel_exec_run (panel);
pthread_mutex_unlock (&panel->io_lock);
free (response);
return stat;
}
static void *
_panel_reader(void *arg)
{
PANEL *p = (PANEL*)arg;
REG *r = NULL;
int sched_policy;
struct sched_param sched_priority;
char buf[4096];
int buf_data = 0;
int processing_register_output = 0;
/*
Boost Priority for this response processing thread to quickly digest
arriving data.
*/
pthread_getschedparam (pthread_self(), &sched_policy, &sched_priority);
++sched_priority.sched_priority;
pthread_setschedparam (pthread_self(), sched_policy, &sched_priority);
pthread_setspecific (panel_thread_id, "reader");
_panel_debug (p, DBG_THR, "Starting", NULL, 0);
buf[buf_data] = '\0';
pthread_mutex_lock (&p->io_lock);
if (!p->parent) {
while (1) {
int new_data = sim_read_sock (p->sock, &buf[buf_data], sizeof(buf)-(buf_data+1));
if (new_data <= 0) {
sim_panel_set_error (NULL, "%s after reading %d bytes: %s", sim_get_err_sock("Unexpected socket read"), buf_data, buf);
_panel_debug (p, DBG_RCV, "%s", NULL, 0, sim_panel_get_error());
p->State = Error;
break;
}
_panel_debug (p, DBG_RCV, "Startup receive of %d bytes: ", &buf[buf_data], new_data, new_data);
buf_data += new_data;
buf[buf_data] = '\0';
if (!memcmp (mantra, buf, sizeof (mantra))) { /* strip initial telnet mantra from input stream */
memmove (buf, buf + sizeof (mantra), 1 + buf_data - sizeof (mantra));
buf_data -= sizeof (mantra);
}
if ((size_t)buf_data < strlen (sim_prompt))
continue;
if (!strcmp (sim_prompt, &buf[buf_data - strlen (sim_prompt)])) {
memmove (buf, &buf[buf_data - strlen (sim_prompt)], strlen (sim_prompt) + 1);
buf_data = strlen (sim_prompt);
break;
}
}
}
p->io_thread_running = 1;
pthread_mutex_unlock (&p->io_lock);
pthread_cond_signal (&p->startup_done); /* Signal we're ready to go */
msleep (100);
pthread_mutex_lock (&p->io_lock);
while ((p->sock != INVALID_SOCKET) &&
(p->State != Error)) {
int new_data;
char *s, *e, *eol;
pthread_mutex_unlock (&p->io_lock);
new_data = sim_read_sock (p->sock, &buf[buf_data], sizeof(buf)-(buf_data+1));
pthread_mutex_lock (&p->io_lock);
if (new_data <= 0) {
sim_panel_set_error (NULL, "%s", sim_get_err_sock("Unexpected socket read"));
_panel_debug (p, DBG_RCV, "%s", NULL, 0, sim_panel_get_error());
p->State = Error;
break;
}
_panel_debug (p, DBG_RCV, "Received %d bytes: ", &buf[buf_data], new_data, new_data);
buf_data += new_data;
buf[buf_data] = '\0';
s = buf;
while ((eol = strchr (s, '\n'))) {
/* Line to process */
*eol++ = '\0';
while ((*s) && (s[strlen(s)-1] == '\r'))
s[strlen(s)-1] = '\0';
if (processing_register_output) {
e = strchr (s, ':');
if (e) {
size_t i;
char smp_dev[32], smp_reg[32], smp_ind[32];
unsigned int bit;
*e++ = '\0';
if (!strcmp("Time", s)) {
p->simulation_time = strtoull (e, NULL, 10);
s = eol;
while (isspace(0xFF & (*s)))
++s;
continue; /* process next line */
}
if ((*s == '}') &&
(3 == sscanf (s, "}%s %s %s", smp_dev, smp_reg, smp_ind))) { /* Register bit Sample Data? */
r = NULL;
for (i=0; i<p->reg_count; i++) {
if (p->regs[i].bits == NULL)
continue;
if ((!strcmp (smp_reg, p->regs[i].name)) &&
((!p->device_name) || (!strcmp (smp_dev, p->device_name)))) {
r = &p->regs[i];
break;
}
}
if (r) {
for (bit = 0; bit < r->bit_count; bit++) {
int val = (int)strtol (e, &e, 10);
r->bits[bit] = val;
if (*e == ',')
++e;
else
break;
}
s = eol;
}
while (isspace(0xFF & (*s)))
++s;
r = NULL;
continue; /* process next line */
}
if (!strncmp (s + strlen (sim_prompt), register_ind_echo, strlen (register_ind_echo) - 1)) {
e = s + strlen (sim_prompt) + strlen (register_ind_echo);
r = NULL;
for (i=0; i<p->reg_count; i++) {
if (p->regs[i].indirect && (!strcmp(p->regs[i].name, e))) {
r = &p->regs[i];
break;
}
}
s = eol;
while (isspace(0xFF & (*s)))
++s;
if (r)
continue; /* process next line */
}
if (!p->io_waiting) {
if (r) {
if (strcmp (s, r->name)) {
unsigned long long data;
data = strtoull (e, NULL, 16);
if (little_endian)
memcpy (r->addr, &data, r->size);
else
memcpy (r->addr, ((char *)&data) + sizeof(data)-r->size, r->size);
r = NULL;
}
s = eol;
while (isspace(0xFF & (*s)))
++s;
continue; /* process next line */
}
for (i=0; i<p->reg_count; i++) {
if (p->regs[i].element_count == 0) {
if (!strcmp(p->regs[i].name, s)) {
unsigned long long data;
data = strtoull (e, NULL, 16);
if (little_endian)
memcpy (p->regs[i].addr, &data, p->regs[i].size);
else
memcpy (p->regs[i].addr, ((char *)&data) + sizeof(data)-p->regs[i].size, p->regs[i].size);
break;
}
}
else {
size_t name_len = strlen (p->regs[i].name);
if ((0 == memcmp (p->regs[i].name, s, name_len)) && (s[name_len] == '[')) {
size_t array_index = (size_t)atoi (s + name_len + 1);
size_t end_index = array_index;
char *end = strchr (s + name_len + 1, '[');
if (end)
end_index = (size_t)atoi (end + 1);
if (strcmp (e, " same as above"))
p->array_element_data = strtoull (e, NULL, 16);
while (array_index <= end_index) {
if (little_endian)
memcpy ((char *)(p->regs[i].addr) + (array_index * p->regs[i].size), &p->array_element_data, p->regs[i].size);
else
memcpy ((char *)(p->regs[i].addr) + (array_index * p->regs[i].size), ((char *)&p->array_element_data) + sizeof(p->array_element_data)-p->regs[i].size, p->regs[i].size);
++array_index;
}
break;
}
}
}
if (i != p->reg_count) {
s = eol;
while (isspace(0xFF & (*s)))
++s;
continue;
}
}
--e;
*e = ':';
/* Unexpected Register Data Found (or other output containing a : character) */
}
}
if (!strcmp (s + strlen (sim_prompt), register_repeat_end)) {
_panel_debug (p, DBG_RCV, "*Repeat Block Complete", NULL, 0);
if (p->callback) {
pthread_mutex_unlock (&p->io_lock);
p->callback (p, p->simulation_time_base + p->simulation_time, p->callback_context);
pthread_mutex_lock (&p->io_lock);
}
processing_register_output = 0;
goto Start_Next_Line;
}
if ((!strcmp (s + strlen (sim_prompt), register_repeat_start)) ||
(!strcmp (s + strlen (sim_prompt), register_get_start))) {
_panel_debug (p, DBG_RCV, "*Repeat/Register Block Starting", NULL, 0);
processing_register_output = 1;
goto Start_Next_Line;
}
if (!strcmp (s + strlen (sim_prompt), register_get_end)) {
_panel_debug (p, DBG_RCV, "*Register Block Complete", NULL, 0);
--p->io_reg_query_pending;
p->io_waiting = 0;
pthread_cond_signal (&p->io_done);
goto Start_Next_Line;
}
if (!strcmp (s + strlen (sim_prompt), command_done_echo)) {
_panel_debug (p, DBG_RCV, "*Received Command Complete", NULL, 0);
p->io_waiting = 0;
pthread_cond_signal (&p->io_done);
goto Start_Next_Line;
}
/* Non Register Data Found (echo of EXAMINE or other commands and/or command output) */
if (p->io_waiting) {
char *t;
if (p->io_response_data + strlen (s) + 3 > p->io_response_size) {
t = (char *)_panel_malloc (p->io_response_data + strlen (s) + 3);
if (t == NULL) {
_panel_debug (p, DBG_RCV, "%s", NULL, 0, sim_panel_get_error());
p->State = Error;
break;
}
memcpy (t, p->io_response, p->io_response_data);
free (p->io_response);
p->io_response = t;
p->io_response_size = p->io_response_data + strlen (s) + 3;
}
_panel_debug (p, DBG_RCV, "Receive Data Accumulated: '%s'", NULL, 0, s);
strcpy (p->io_response + p->io_response_data, s);
p->io_response_data += strlen(s);
strcpy (p->io_response + p->io_response_data, "\r\n");
p->io_response_data += 2;
}
else
_panel_debug (p, DBG_RCV, "Receive Data Discarded: '%s'", NULL, 0, s);
Start_Next_Line:
s = eol;
while (isspace(0xFF & (*s)))
++s;
}
memmove (buf, s, strlen (s)+1);
buf_data = strlen (buf);
if (buf_data)
_panel_debug (p, DBG_RSP, "Remnant Buffer Contents: '%s'", NULL, 0, buf);
if (!memcmp ("Simulator Running...", buf, 20)) {
_panel_debug (p, DBG_RSP, "State transitioning to Run", NULL, 0);
p->State = Run;
buf_data -= 20;
if (buf_data) {
memmove (buf, buf + 20, buf_data + 1);
/* Since there is more to look at, we need to let the state
transition to Run propagate before examining that.*/
pthread_mutex_unlock (&p->io_lock);
msleep (100);
pthread_mutex_lock (&p->io_lock);
}
buf[buf_data] = '\0';
}
if ((p->State == Run) && (!strcmp (buf, sim_prompt))) {
_panel_debug (p, DBG_RSP, "State transitioning to Halt", NULL, 0);
p->State = Halt;
}
}
if (p->io_waiting) {
_panel_debug (p, DBG_THR, "Receive: restarting waiting thread while exiting", NULL, 0);
p->io_waiting = 0;
pthread_cond_signal (&p->io_done);
}
_panel_debug (p, DBG_THR, "Exiting", NULL, 0);
pthread_setspecific (panel_thread_id, NULL);
p->io_thread_running = 0;
pthread_mutex_unlock (&p->io_lock);
return NULL;
}
static void *
_panel_callback(void *arg)
{
PANEL *p = (PANEL*)arg;
int sched_policy;
struct sched_param sched_priority;
char *buf = NULL;
size_t buf_data = 0;
unsigned int callback_count = 0;
int cmd_stat;
/*
Boost Priority for timer thread so it doesn't compete
with compute bound activities.
*/
pthread_getschedparam (pthread_self(), &sched_policy, &sched_priority);
++sched_priority.sched_priority;
pthread_setschedparam (pthread_self(), sched_policy, &sched_priority);
pthread_setspecific (panel_thread_id, "callback");
_panel_debug (p, DBG_THR, "Starting", NULL, 0);
pthread_mutex_lock (&p->io_lock);
p->callback_thread_running = 1;
pthread_mutex_unlock (&p->io_lock);
pthread_cond_signal (&p->startup_done); /* Signal we're ready to go */
msleep (100);
pthread_mutex_lock (&p->io_lock);
while ((p->sock != INVALID_SOCKET) &&
(p->usecs_between_callbacks) &&
(p->State != Error)) {
int interval = p->usecs_between_callbacks;
int new_register = p->new_register;
p->new_register = 0;
pthread_mutex_unlock (&p->io_lock);
if (new_register) /* need to get and send updated register info */
_panel_register_query_string (p, &buf, &buf_data);
/* twice a second activities: */
/* 1) update the query string if it has changed */
/* (only really happens at startup) */
/* 2) update register state by polling if the simulator is halted */
msleep (500);
pthread_mutex_lock (&p->io_lock);
if (new_register) {
if (p->io_reg_query_pending == 0) {
size_t repeat_data = strlen (register_repeat_prefix) + /* prefix */
20 + /* max int width */
strlen (register_repeat_units) + /* units and spacing */
buf_data + /* command contents */
1 + /* carriage return */
strlen (register_repeat_start) + /* auto repeat begin */
1 + /* carriage return */
strlen (register_repeat_end) + /* auto repeat completion */
1 + /* carriage return */
1; /* NUL */
char *repeat = (char *)malloc (repeat_data);
char *c;
sprintf (repeat, "%s%d%s%s%*.*s", register_repeat_prefix,
p->usecs_between_callbacks,
register_repeat_units,
register_repeat_start,
(int)buf_data, (int)buf_data, buf);
pthread_mutex_unlock (&p->io_lock);
for (c = strchr (repeat, '\r'); c != NULL; c = strchr (c, '\r'))
*c = ';'; /* replace carriage returns with semicolons */
c = strstr (repeat, register_get_end); /* remove register_done_echo string and */
if (c) /* always true */
strcpy (c, register_repeat_end); /* replace it with the register_repeat_end string */
if (_panel_sendf (p, &cmd_stat, NULL, "%s", repeat)) {
pthread_mutex_lock (&p->io_lock);
free (repeat);
break;
}
pthread_mutex_lock (&p->io_lock);
free (repeat);
}
else { /* already busy */
p->new_register = 1; /* retry later */
_panel_debug (p, DBG_XMT, "Waiting on prior command completion before specifying repeat interval", NULL, 0);
}
}
/* when halted, we directly poll the halted system to get updated */
/* register state which may have changed due to panel activities */
if (p->State == Halt) {
pthread_mutex_unlock (&p->io_lock);
if (_panel_get_registers (p, 1, NULL)) {
pthread_mutex_lock (&p->io_lock);
break;
}
pthread_mutex_lock (&p->io_lock);
}
}
pthread_mutex_unlock (&p->io_lock);
/* stop any established repeating activity in the simulator */
if (p->parent == NULL) { /* Top level panel? */
_panel_debug (p, DBG_THR, "Stopping All Repeats before exiting", NULL, 0);
_panel_sendf (p, &cmd_stat, NULL, "%s", register_repeat_stop_all);
}
else {
_panel_debug (p, DBG_THR, "Stopping Repeats before exiting", NULL, 0);
_panel_sendf (p, &cmd_stat, NULL, "%s", register_repeat_stop);
}
pthread_mutex_lock (&p->io_lock);
_panel_debug (p, DBG_THR, "Exiting", NULL, 0);
pthread_setspecific (panel_thread_id, NULL);
p->callback_thread_running = 0;
pthread_mutex_unlock (&p->io_lock);
free (buf);
return NULL;
}
const char *sim_panel_get_error (void)
{
return (sim_panel_error_buf ? sim_panel_error_buf : "");
}
void sim_panel_clear_error (void)
{
if (sim_panel_error_bufsize)
free (sim_panel_error_buf);
sim_panel_error_buf = NULL;
sim_panel_error_bufsize = 0;
}
#if defined (_WIN32)
#define vsnprintf _vsnprintf
#endif
static int sim_panel_set_error (PANEL *p, const char *fmt, ...)
{
va_list arglist;
int len;
if (p) {
pthread_mutex_lock (&p->io_lock);
p->State = Error;
pthread_mutex_unlock (&p->io_lock);
}
if (sim_panel_error_bufsize == 0) {
sim_panel_error_bufsize = 2048;
sim_panel_error_buf = (char *) malloc (sim_panel_error_bufsize);
if (sim_panel_error_buf == NULL) {
sim_panel_error_buf = (char *)"sim_panel_set_error(): Out of Memory\n";
sim_panel_error_bufsize = 0;
return -1;
}
}
sim_panel_error_buf[sim_panel_error_bufsize-1] = '\0';
while (1) { /* format passed string, args */
va_start (arglist, fmt);
len = vsnprintf (sim_panel_error_buf, sim_panel_error_bufsize-1, fmt, arglist);
va_end (arglist);
if (len < 0) /* Format encoding error? */
break;
/* If the formatted result didn't fit into the buffer, then grow the buffer and try again */
if (len >= (int)(sim_panel_error_bufsize-1)) {
free (sim_panel_error_buf);
sim_panel_error_bufsize = sim_panel_error_bufsize * 2;
while ((int)sim_panel_error_bufsize < len + 1)
sim_panel_error_bufsize = sim_panel_error_bufsize * 2;
sim_panel_error_buf = (char *) malloc (sim_panel_error_bufsize);
if (sim_panel_error_buf == NULL) {
sim_panel_error_buf = (char *)"sim_panel_set_error(): Out of Memory\n";
sim_panel_error_bufsize = 0;
return -1;
}
sim_panel_error_buf[sim_panel_error_bufsize-1] = '\0';
continue;
}
break;
}
return -1;
}
static int
_panel_sendf (PANEL *p, int *completion_status, char **response, const char *fmt, ...)
{
char stackbuf[1024];
int bufsize = sizeof(stackbuf);
char *buf = stackbuf;
int len, status_echo_len = 0, sent_len;
int post_fix_len = completion_status ? 7 + sizeof (command_done_echo) + sizeof (command_status) : 1;
va_list arglist;
int ret;
while (1) { /* format passed string, args */
va_start (arglist, fmt);
len = vsnprintf (buf, bufsize-1, fmt, arglist);
va_end (arglist);
if (len < 0)
return sim_panel_set_error (NULL, "Format encoding error while processing '%s'", fmt);
/* If the formatted result didn't fit into the buffer, then grow the buffer and try again */
if ((len + post_fix_len) >= bufsize-1) {
if (buf != stackbuf)
free (buf);
bufsize = bufsize * 2;
if (bufsize < (len + post_fix_len + 2))
bufsize = len + post_fix_len + 2;
buf = (char *) _panel_malloc (bufsize);
if (buf == NULL)
return -1;
buf[bufsize-1] = '\0';
continue;
}
break;
}
if (len && (buf[len-1] != '\r')) {
strcpy (&buf[len], "\r"); /* Make sure command line is terminated */
++len;
}
pthread_mutex_lock (&p->io_command_lock);
++p->command_count;
if (completion_status) {
sprintf (&buf[len], "%s\r%s\r", command_status, command_done_echo);
status_echo_len = strlen (&buf[len]);
pthread_mutex_lock (&p->io_lock);
p->io_response_data = 0;
}
_panel_debug (p, DBG_REQ, "Command %d Request%s: %*.*s", NULL, 0, p->command_count, completion_status ? " (with response)" : "", len, len, buf);
ret = ((len + status_echo_len) == (sent_len = _panel_send (p, buf, len + status_echo_len))) ? 0 : -1;
if (completion_status) {
if (!ret) { /* Sent OK? */
char *tresponse = NULL;
p->io_waiting = 1;
while (p->io_waiting)
pthread_cond_wait (&p->io_done, &p->io_lock); /* Wait for completion */
tresponse = (char *)_panel_malloc (p->io_response_data + 1);
if (0 == memcmp (buf, p->io_response + strlen (sim_prompt), len)) {
char *eol, *status;
memcpy (tresponse, p->io_response + strlen (sim_prompt) + len + 1, p->io_response_data + 1 - (strlen (sim_prompt) + len + 1));
*completion_status = -1;
status = strstr (tresponse, command_status);
if (status) {
*(status - strlen (sim_prompt)) = '\0';
status += strlen (command_status) + 2;
eol = strchr (status, '\r');
if (eol)
*eol = '\0';
sscanf (status, "Status:%08X-", completion_status);
}
}
else
memcpy (tresponse, p->io_response, p->io_response_data + 1);
if (response) {
*response = tresponse;
_panel_debug (p, DBG_RSP, "Command %d Response(Status=%d): '%s'", NULL, 0, p->command_count, *completion_status, *response);
}
else {
free (tresponse);
if (p->io_response_data)
_panel_debug (p, DBG_RSP, "Discarded Unwanted Command %d Response Data(Status=%d):", p->io_response, p->io_response_data, p->command_count, *completion_status);
}
}
p->io_response_data = 0;
p->io_response[0] = '\0';
pthread_mutex_unlock (&p->io_lock);
}
else {
if (ret)
sim_panel_set_error (p, "Unexpected send length: %d, expected: %d", sent_len, len + status_echo_len);
}
pthread_mutex_unlock (&p->io_command_lock);
if (buf != stackbuf)
free (buf);
return ret;
}
#ifdef __cplusplus
}
#endif