[Tlf-devel] Re: another feature for cwdaemon

[Joop Stakenborg]

Sergei Klink wrote:
> Hi all,
>
> I saw somebody use a keyer interface with TRlog which has a connector for the 
> manipulator itself, to make a "software" automatic key(pins 12 and 13 on the 
> parallel port), and decided to try to do something similar with 
> cwdaemon(0.5). The I/O port programming HOWTO seems to be pretty clear(I 
> happened to have a 1998 book lying at my feet at the moment), although some 
> of the things I just cannot understand there(why did I have to use != instead 
> of == ?). Besides, I'm a very poor C programmer(and not even really a HAM 
> yet), so maybe this is more of a suggestion than solution(also, I don't know 
> if anyone used something similar for the serial port, so I just made a dummy 
> function to prevent it from segfaulting); although it seems to work somehow.

Hi sergei,

Thanks for the patch! I never thought that adding a manipulator would be 
this simple. Can you tell me how the interface circuitry looks like? I 
suppose it is just a pull-up resistor which you need for every pin?

The serial port routine looks okay, there are just not enough pins to 
add a paddle to the serial port...

I will release version 0.6 shortly and then we can add your idea to the 
first 0.7 beta release.

> Anyways, (please excuse me if this is the wrong place to send it) the patch 
> for cwdaemon-0.5 is attached, just to show what I meant(I'm not exactly sure 
> how to do this with 0.6beta1).


I will have a look how I can add this to version 0.6.
I have cc'd your mail to the tlf-devel mailing list. Most people who 
have worked on cwdaemon are on this list.

> ------------------------------------------------------------------------
>
> diff -u -r cwdaemon-0.5/cwdaemon.c cwdaemon-0.5-mod/cwdaemon.c
> --- cwdaemon-0.5/cwdaemon.c     2003-05-19 10:58:40.000000000 -0600
> +++ cwdaemon-0.5-mod/cwdaemon.c 2003-07-19 16:02:10.000000000 -0600
> @@ -54,6 +54,8 @@
>  unsigned int ptt_delay = 0; /* default = off*/
>  int ptt_timer_running = 0;
>  
> +int keyer_data;		/* status of the automatic keyer */
> +
>  struct timeval now,end,left;
>  
>  #define MAXMORSE 4000
> @@ -125,6 +127,7 @@
>    init : ttys_init,
>    free : ttys_free,
>    reset : ttys_reset,
> +  status : ttys_status,
>    cw_on   : ttys_cw_on,
>    cw_off  : ttys_cw_off,
>    ptt_on  : ttys_ptt_on,
> @@ -138,6 +141,7 @@
>    init : lp_init,
>    free : lp_free,
>    reset : lp_reset,
> +  status : lp_status,
>    cw_on   : lp_cw_on,
>    cw_off  : lp_cw_off,
>    ptt_on  : lp_ptt_on,
> @@ -900,6 +904,27 @@
>    while (1)
>      {
>        udelay (1000); /*prevent 100% CPU */
> +      
> +      keyer_data = cwdev->status(cwdev);
> +      if (keyer_data == 13)                    /* dash */
> +      {
> +        debug("dash");
> +        playbeep(dash);
> +       udelay (eldelay / morse_speed);         /* delay after the element */
> +       continue;                               /* don't let cwdaemon do 
> anything else if the key is still in use */
> +      }
> +      else
> +      {
> +        if (keyer_data == 12)                  /* dot */
> +       {
> +         debug("dot");
> +         playbeep(dot);
> +         udelay (eldelay / morse_speed);       /* delay after the element */
> +         continue;                             /* don't let cwdaemon do 
> anything else if the key is still in use */
> +	}  
> +      }
> +      
> +      
>        if (recv_code ())
>          playmorsestring (morsetext);
>        /* check for ptt off timer */
> diff -u -r cwdaemon-0.5/cwdaemon.h cwdaemon-0.5-mod/cwdaemon.h
> --- cwdaemon-0.5/cwdaemon.h     2003-05-05 14:09:41.000000000 -0600
> +++ cwdaemon-0.5-mod/cwdaemon.h 2003-07-19 16:08:33.000000000 -0600
> @@ -90,6 +90,7 @@
>      int (*init)(struct cwdev_s *);
>      int (*free)(struct cwdev_s *);
>      int (*reset)(struct cwdev_s *);
> +    int (*status)(struct cwdev_s *);
>      int (*cw_on)(struct cwdev_s *);
>      int (*cw_off)(struct cwdev_s *);
>      int (*ptt_on)(struct cwdev_s *);
> @@ -108,6 +109,7 @@
>  int lp_init(cwdevice *dev);
>  int lp_free(cwdevice *dev);
>  int lp_reset(cwdevice *dev);
> +int lp_status(cwdevice *dev);
>  int lp_cw_on(cwdevice *dev);
>  int lp_cw_off(cwdevice *dev);
>  int lp_ptt_on(cwdevice *dev);
> @@ -120,6 +122,7 @@
>  int ttys_init(cwdevice *dev);
>  int ttys_free(cwdevice *dev);
>  int ttys_reset(cwdevice *dev);
> +int ttys_status(cwdevice *dev);
>  int ttys_cw_on(cwdevice *dev);
>  int ttys_cw_off(cwdevice *dev);
>  int ttys_ptt_on(cwdevice *dev);
> diff -u -r cwdaemon-0.5/lp.c cwdaemon-0.5-mod/lp.c
> --- cwdaemon-0.5/lp.c   2003-05-05 14:09:41.000000000 -0600
> +++ cwdaemon-0.5-mod/lp.c       2003-07-19 16:11:31.000000000 -0600
> @@ -3,6 +3,29 @@
>  
>  /* LP functions */
>  
> +int lp_status(cwdevice *dev)
> +{
> +  int port_data;
> +  
> +  if (ioperm (dev->base+1, 3, 1) == -1)
> +    {
> +      errmsg ("Open lp port 0x%x, %d", dev->base, dev->base);
> +      exit (1);
> +    }
> +
> +
> +  port_data = inb(dev->base+1);
> +  if ((port_data & 0x10) != 0x10)  /* Check for pin 13 */
> +    return 13; /* dash */
> +  else
> +  {
> +    if ((port_data & 0x20) != 0x20)        /* Check for pin 12 */
> +      return 12;       /* dot */
> +    else
> +      return 0;                /* nothing */
> +  }
> +}
> +
>  int lp_init(cwdevice *dev)
>  {
>    if (ioperm (dev->base+2, 1, 1) == -1)
> diff -u -r cwdaemon-0.5/ttys.c cwdaemon-0.5-mod/ttys.c
> --- cwdaemon-0.5/ttys.c 2003-05-17 04:24:01.000000000 -0600
> +++ cwdaemon-0.5-mod/ttys.c     2003-07-19 16:05:52.000000000 -0600
> @@ -21,6 +21,12 @@
>  
>  /* ttyS functions */
>  
> +int ttys_status(cwdevice *dev)
> +{
> +  /* Dummy function */
> +  return 0;
> +}
> +
>  int ttys_init(cwdevice *dev)
>  {
>    if (ioperm (dev->base, 8, 1) == -1)

Regards,
Joop PA4TU