Re: [Uisp-dev] RFC: use uisp as terminal/pty

[Ph. Marek]

Hello everyone,


here's the version I'm using. I know the implementation is not pretty, but it 
works and didn't take too long.


I call it with
        $ src/uisp -v=3 -dlpt=/dev/parports/0 -dprog=dapa --console=1 
-dt_sck=3000 -dt_reset=20 -dno-enable=1

The AVR part is mostly finished; I'm only looking for a bug, where a character 
sent 
from PC to AVR causes a character lost from AVR to PC.
But for "sparse" communication it already works fine.
(Someone who likes to help debugging?)


Regards,

Phil



=== src/AvrDummy.C
==================================================================
--- src/AvrDummy.C      (revision 8)
+++ src/AvrDummy.C      (revision 19)
@@ -622,7 +622,7 @@
   /* Device Command line options ... */
   if (GetCmdParam("-dno-poll", false)){use_data_polling=false;}

-  EnableAvr();
+  if (!GetCmdParam("-dno-enable", false)) EnableAvr();
 }

 #endif
=== src/DAPA.h
==================================================================
--- src/DAPA.h  (revision 8)
+++ src/DAPA.h  (revision 19)
@@ -69,7 +69,6 @@
 private:
   int SendRecv(int);
   /* low level access to parallel port lines */
-  void OutReset(int);
   void OutSck(int);
   void OutData(int);
   void SckDelay();
@@ -89,6 +88,7 @@
   /* If enable command 0x53 did not echo back, give a positive SCK
      pulse and retry again.
   */
+  void OutReset(int);
   void PulseSck();
   void PulseReset();
   void Init();
=== src/Main.C
==================================================================
--- src/Main.C  (revision 8)
+++ src/Main.C  (revision 19)
@@ -36,6 +36,8 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
+#include <ctype.h>
+#include <signal.h>
 #include "Terminal.h"
 #include "MotIntl.h"
 #include "AvrAtmel.h"
@@ -56,6 +58,8 @@
 TMotIntl motintl;
 TTerminal terminal;

+volatile int quit=0;
+
 const char* version = "uisp version %s\n"
 "(C) 1997-1999 Uros Platise, 2000-2003 Marek Michalkiewicz\n"
 "\nuisp is free software, covered by the GNU General Public License.\n"
@@ -230,6 +234,12 @@
 }


+void SigHandler(int sig)
+{
+       quit=1;
+}
+
+
 int main(int _argc, const char* _argv[]){
   int return_val=0;
   argc = _argc;
@@ -288,7 +298,72 @@
 #ifndef NO_DAPA
     else if (val) {
       /* The TDAPA() constructor will drop setuid privileges after
-         opening the lpt ioport. */
+        opening the lpt ioport. */
+      if (GetCmdParam("--console", false))
+                       {
+                               unsigned char buffer[2];
+                               fd_set set;
+                               struct timeval tv;
+                               int l;
+                               TDAPA *ad=new TDAPA;
+                               struct termios tios, tios2;
+                               int hex_out;
+
+
+                               signal(SIGQUIT, SigHandler);
+                               signal(SIGINT, SigHandler);
+                               signal(SIGTERM, SigHandler);
+                               signal(SIGPIPE, SigHandler);
+
+                               hex_out=!!GetCmdParam("--hex-out", false);
+
+                               printf("Connection established.\n");
+                               if (tcgetattr(0, &tios) == -1)
+                                       throw Error_Device("Cannot get terminal 
attributes");
+                               memcpy(&tios2, &tios, sizeof(tios));
+                               tios2.c_cc[VMIN]=0;
+                               tios2.c_lflag &= ~(ICANON | ECHO);
+                               if (tcsetattr(0, TCSANOW, &tios2) == -1)
+                                       throw Error_Device("Cannot get terminal 
attributes");
+                               ad->OutReset(1);
+
+                               while(!quit)
+                               {
+                                       FD_ZERO(&set);
+                                       FD_SET(0,&set);
+                                       tv.tv_sec=0;
+                                       tv.tv_usec=100000;
+                                       if (select(1,&set, NULL,NULL, &tv))
+                                       {
+                                               l=read(0, buffer+1, 
sizeof(buffer)-1);
+                                               if (l <= 0) break;
+                                       }
+                                       else
+                                               l=0;
+
+                                       buffer[0]=0x7f;
+                                       ad->Send(buffer, l+1, sizeof(buffer));
+                                       if (buffer[0])
+                                       {
+                                               if (hex_out)
+                                               {
+                                                       printf("'%c' = hex %02X 
= dez %d = bin ",
+                                                                       
isprint(buffer[0]) ? buffer[0] : ' ',
+                                                                       
buffer[0], buffer[0]);
+                                                       for(l=7; l>=0; l--) 
putchar((buffer[0] & (1 << l)) ? '1' : '0');
+                                                       putchar('\n');
+                                               }
+                                               else
+                                                       putchar(buffer[0]);
+                                               fflush(stdout);
+                                       }
+                               }
+
+                               if (tcsetattr(0, TCSANOW, &tios) == -1)
+                                       throw Error_Device("Cannot get terminal 
attributes");
+                               return 0;
+                       }
+
       device = new TAvrDummy();
     }
 #endif