Re: tty.cdl

[Ilija Kocho <ilijak@siva.com.mk>]

On 27.03.2011 23:11, Sergei Gavrikov wrote:
> On Sun, 27 Mar 2011, Ilija Kocho wrote:
>
>> Sergei, I started this discussion in order to discuss this issue before
>> I drop any code. Your proposal sounds rational. I shall open a Bug and
>> reference this discussion.
> Ilija and may be not :-) I've seen that io_serial.h has
>
> #ifdef CYGDAT_IO_SERIAL_DEVICE_HEADER
> # include CYGDAT_IO_SERIAL_DEVICE_HEADER
> #endif
>
> So, your issue can be managed on the target's side, as both and tty.c
> and termios.c include this header. You can add CDL component in your HAL
> config file which parent should be CYGPKG_IO_SERIAL_TTY and define extra
> devices (TTY4, TTY5, ...) there. Also define/set your own value for the
> CYGDAT_IO_SERIAL_DEVICE_HEADER in the HAL's config file.
>
Sergei, thanks for remark. I tried it but produced file is included to
early as table definitions such as

DEVTAB_ENTRY(tty_io4,
             "/dev/tty4",
             CYGDAT_IO_SERIAL_TTY_TTY4_DEV,
             &tty_devio,
             tty_init,
             tty_lookup,      // Execute this when device is being looked up
             &tty_private_info4);

depend on definitions included afterwards. Also file io_serial.h is
included in serial.c where produces errors.

However the TTYs provided by devicel driver / HAL may be included at
proper place in tty.c later in similar way:

#ifdef CYGDAT_IO_SERIAL_TTY_ADD
# include CYGDAT_IO_SERIAL_TTY_ADD
#endif

I think these would be all changes to tty.c

Should I continue this way?

Ilija