scanf , getchar, gets, read are not working in libtests\termios and my application

Sun Apr 22 23:55:10 UTC 2012

I think there's still a couple of bugs in the code I submitted.  Unfortunately the work I was doing was for a low priority project that's gotten shelved indefinitely; my current primary task already has me at about 60-70 hours per week.  I don't know when I'll be able to get back to RTEMS...

	- Vic Hoover

> -----Original Message-----
> From: rtems-users-bounces at rtems.org [mailto:rtems-users-
> bounces at rtems.org] On Behalf Of Joel Sherrill
> Sent: Thursday, April 19, 2012 9:09
> To: AJAI KUMAR MEDHAVI; RTEMS; Sebastian Huber; Thomas Doerfler
> Cc: Eric Valette
> Subject: Re: scanf , getchar, gets, read are not working in
> libtests\termios and my application
> 
> On 04/18/2012 10:28 PM, Joel Sherrill wrote:
> > Then something is wrong with the input side of the console device
> driver.  You have the source. :)
> Well shouldn't answer from phone after a margarita. Making note
> to self on that one. Sorry for the tone.
> 
> This should be fixed on the git head and 4.10 branch. Vic Hoover
> submitted a fairly significant rewrite of the console driver for the
> mvme162.
> 
> --joel
> > There are consultants on the list who can help but having the
> hardware is a big help itself.
> >
> > --joel
> >
> > AJAI KUMAR MEDHAVI<akmedhavi at rrcat.gov.in>  wrote:
> >
> >> Hi
> >>
> >>
> >> I have ported RTEMS-4.10.2 on M68k processor based MVME162 CPU Board
> using
> >> MinGW on Windows XP.
> >>
> >> I have developed Anaglog / Digtial IO Boards Drivers and Prototype
> >> application for testing ADC/DAC device drivers.  In this protypte
> >> application I have used printf, scanf and getchar.
> >>
> >>
> >> On running my application,  scanf getchar are not working. I have
> enabled
> >> following drivers in my application :
> >>
> >>
> >> #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
> >> #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
> >> #define CONFIGURE_FILESYSTEM_DEVFS
> >> #define CONFIGURE_USE_DEVFS_AS_BASE_FILESYSTEM
> >> #define CONFIGURE_EXTRA_TASK_STACKS         (3 *
> RTEMS_MINIMUM_STACK_SIZE)
> >>
> >> and included following
> >>
> >> #include<bsp.h>
> >> #include<rtems/bspIo.h>
> >> #include<string.h>
> >> #include<stdio.h>
> >> #include<stdlib.h>
> >> #include<errno.h>
> >> #include<assert.h>
> >> #include<stdarg.h>
> >> #include<ctype.h>
> >> #include<rtems.h>
> >> #include<rtems/error.h>
> >> #include<rtems/bspIo.h>
> >> #include<rtems/libio.h>
> >>
> >>
> >> #define CONFIGURE_INIT
> >> #include<rtems/confdefs.h>
> >>
> >>
> >> Then I tried to run following sample applications provided by RTEMS
> :
> >>
> >> 1. Testsuites\libtests\termios
> >> 2. Testsuites\smaples\fileio
> >>
> >>
> >> I found the same problem :  scanf, fgets not working while printf is
> working.
> >>
> >>
> >> Then I made a following new test application and tried to test it  :
> >> ____________________________________________________________________
> >> #include<bsp.h>  /* for device driver prototypes */
> >>
> >> #include<rtems/bspIo.h>
> >> #include<string.h>
> >> #include<stdio.h>
> >> #include<stdlib.h>
> >> #include<errno.h>
> >> #include<assert.h>
> >> #include<stdarg.h>
> >> #include<ctype.h>
> >> #include<rtems.h>
> >> #include<rtems/error.h>
> >> #include<rtems/bspIo.h>
> >> #include<rtems/libio.h>
> >>
> >> #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
> >> #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
> >> #define CONFIGURE_FILESYSTEM_DEVFS
> >> #define CONFIGURE_USE_DEVFS_AS_BASE_FILESYSTEM
> >>
> >> #define CONFIGURE_EXTRA_TASK_STACKS         (3 *
> RTEMS_MINIMUM_STACK_SIZE)
> >> #define CONFIGURE_MAXIMUM_TASKS                    1
> >> #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
> >>
> >> #define CONFIGURE_INIT
> >> #include<rtems/confdefs.h>
> >>
> >> rtems_task Init(  rtems_task_argument ignored )
> >> {
> >>   int                        ch, ch1, chno;
> >>   char                         buf[5], val[3];
> >>   int                         nbChar;
> >>   printf( "WELCOME TO ACCELERATOR CONTROLS .... RTEMS KERNEL ON
> >> MVME162-522A \n" );
> >>   memset(buf, 0, sizeof(buf));
> >>   printf("enter a string\n");
> >>   nbChar = read(0, buf, sizeof(buf));
> >>   printf("string read = %s\n", buf);
> >>
> >>
> >>   printf("Press any key to continue 111");  fflush(stdout);
> >>   ch=getchark();
> >>   while(!isalpha(ch))
> >>     ch=getchark();
> >>   printf("ch : %d",ch);         fflush(stdout);
> >>
> >>    printf("\nEnter Channel Number [ 1 TO 32 ] :");
> fflush(stdout);
> >>   scanf("%s",val);
> >>   chno=(int)strtol((const char *)val,(char**)NULL,10);
> >>   printf("\nWrite Relay chan no :%d",chno);  fflush(stdout);
> >>
> >>   printf("Press any key to continue 222"); fflush(stdout);
> >>   ch1=getchar();
> >>   printf("ch : %d",ch1);
> >>
> >>
> >>   printf("Please enter your choice(1,2,3,4 or 5) ->  ");
> fflush(stdout);
> >>   scanf("%d",&ch1);
> >>   printf("choice : %d",ch1);                fflush(stdout);
> >>
> >>   exit( 0 );
> >> }
> >>
> >> --------------------------------------------------------------------
> -------
> >>
> >> TEST  RESULT  :
> >> none of  scanf,  getchar, getchark  and read working and application
> hangs.
> >>
> >>
> >> May someone execute the above program with clock enabled to check
> >> if it also fail on their plateform?
> >>
> >>
> >>
> >> I am not able to figure out why scanf, gethar  etc are not working.
> Here I
> >> have several queries and doubts :
> >>
> >> 1. Is there any problem /bug with Keyboard driver or console driver
> >>
> >> 2. Is  “scanf / getchar /gets / read”  etc has restricted inclusions
> >>    controlled by some #define or makefile or configure file.
> >>
> >> 3. Any chance of problem with Initial task stack size.
> >>
> >> 4. I have USB based keyboard, not PS2 keyboard. However I have
> tested it
> >> with PS2 keyboard also with same result.
> >>
> >>
> >>
> >>
> >> Any tips / suggestions
> >>
> >>
> >> Can someone help me out?
> >>
> >>
> >> One more thing, how to enable  “prinf/puts”  for debugging in any
> part of
> >> code/device driver, before starting of Init task.
> >>
> >>
> >>
> >> Best Regards
> >>
> >>
> >>
> >>
> >> AJAI KUMAR MEDHAVI
> >> SCIENTIFIC OFFICER
> >> RAJA RAMMANNA CENTRE FOR ADVANCED TECHNOLGY
> >> DEPARTMENT OF ATOMIC ENERGY, GOV. OF INDIA,
> >> PO : CAT, INDORE-452013, INDIA
> >> PH. 91-731-2488052
> >> Email : akmedhavi at rrcat.gov.in , akmedhavi at rediffmail.com
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> rtems-users mailing list
> >> rtems-users at rtems.org
> >> http://www.rtems.org/mailman/listinfo/rtems-users
> > _______________________________________________
> > rtems-users mailing list
> > rtems-users at rtems.org
> > http://www.rtems.org/mailman/listinfo/rtems-users
> 
> 
> --
> Joel Sherrill, Ph.D.             Director of Research&   Development
> joel.sherrill at OARcorp.com        On-Line Applications Research
> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>      Support Available             (256) 722-9985
> 
> 
> _______________________________________________
> rtems-users mailing list
> rtems-users at rtems.org
> http://www.rtems.org/mailman/listinfo/rtems-users
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